/* ==========================================================================
   SAINIK SCHOOL (AISSEE) THEME DESIGN SYSTEM v1.0 — CLASS VI ADMISSION SUITE
   Zero-Blue Palette:
   - Primary / Master: Military Maroon (#881337)
   - Mathematics: Forest Pine (#166534)
   - Intelligence: Royal Plum / Violet (#581c87)
   - English: Deep Crimson (#9f1239)
   - General Knowledge: Warm Bronze / Ochre (#92400e)
   ========================================================================== */

:root {
  --sainik-primary: #881337;
  --sainik-primary-dark: #4c0519;
  --sainik-primary-light: #9f1239;
  --sainik-primary-soft: rgba(136, 19, 55, 0.08);
  --sainik-primary-glow: rgba(136, 19, 55, 0.22);
  --sainik-accent: #831843;
  --sainik-accent-soft: rgba(131, 24, 67, 0.08);
  --sainik-gold: #b45309;
  --sainik-gold-soft: rgba(180, 83, 9, 0.12);
  --sainik-text: #0f172a;
  --sainik-text-secondary: #334155;
  --sainik-text-muted: #64748b;
  --sainik-bg-card: #ffffff;
  --sainik-bg-subtle: #f8fafc;
  --sainik-bg-page: #f1f5f9;
  --sainik-border: #e2e8f0;
  --sainik-border-subtle: rgba(0, 0, 0, 0.06);
  --sainik-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --sainik-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --sainik-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
  --sainik-shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1), 0 4px 8px rgba(0, 0, 0, 0.04);
  --sainik-header-bg: linear-gradient(135deg, rgba(136, 19, 55, 0.08) 0%, rgba(131, 24, 67, 0.04) 50%, rgba(180, 83, 9, 0.07) 100%);
  --sainik-header-border: rgba(136, 19, 55, 0.16);
  --radius-xl: 16px;
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-sm: 6px;
  --radius-full: 999px;
  --font-base: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Mathematics Subject Palette: Deep Forest Emerald & Jade */
body[data-subject="mathematics"] {
  --sainik-primary: #065f46;
  --sainik-primary-dark: #022c22;
  --sainik-primary-light: #047857;
  --sainik-primary-soft: rgba(6, 95, 70, 0.07);
  --sainik-primary-glow: rgba(6, 95, 70, 0.20);
  --sainik-accent: #b45309;
  --sainik-accent-soft: rgba(180, 83, 9, 0.08);
  --sainik-gold: #d97706;
  --sainik-gold-soft: rgba(217, 119, 6, 0.10);
  --sainik-header-bg: linear-gradient(135deg, rgba(6, 95, 70, 0.09) 0%, rgba(4, 120, 87, 0.04) 50%, rgba(217, 119, 6, 0.06) 100%);
  --sainik-header-border: rgba(6, 95, 70, 0.16);
}

/* English Subject Palette: Imperial Burgundy & Stately Wine */
body[data-subject="english"] {
  --sainik-primary: #831843;
  --sainik-primary-dark: #4c0519;
  --sainik-primary-light: #9f1239;
  --sainik-primary-soft: rgba(131, 24, 67, 0.07);
  --sainik-primary-glow: rgba(131, 24, 67, 0.20);
  --sainik-accent: #b45309;
  --sainik-accent-soft: rgba(180, 83, 9, 0.08);
  --sainik-gold: #d97706;
  --sainik-gold-soft: rgba(217, 119, 6, 0.10);
  --sainik-header-bg: linear-gradient(135deg, rgba(131, 24, 67, 0.09) 0%, rgba(159, 18, 57, 0.04) 50%, rgba(217, 119, 6, 0.06) 100%);
  --sainik-header-border: rgba(131, 24, 67, 0.16);
}

/* General Knowledge Subject Palette: Burnished Bronze & Warm Amber */
body[data-subject="general-knowledge"] {
  --sainik-primary: #92400e;
  --sainik-primary-dark: #451a03;
  --sainik-primary-light: #b45309;
  --sainik-primary-soft: rgba(146, 64, 14, 0.07);
  --sainik-primary-glow: rgba(146, 64, 14, 0.20);
  --sainik-accent: #166534;
  --sainik-accent-soft: rgba(22, 101, 52, 0.08);
  --sainik-gold: #b45309;
  --sainik-gold-soft: rgba(180, 83, 9, 0.10);
  --sainik-header-bg: linear-gradient(135deg, rgba(146, 64, 14, 0.09) 0%, rgba(180, 83, 9, 0.04) 50%, rgba(22, 101, 52, 0.06) 100%);
  --sainik-header-border: rgba(146, 64, 14, 0.16);
}

/* Dark Mode Global Base (No Blue!) */
:root[data-theme="dark"], body.dark-mode {
  --sainik-primary: #fb7185;
  --sainik-primary-dark: #f43f5e;
  --sainik-primary-light: #fda4af;
  --sainik-primary-soft: rgba(251, 113, 133, 0.12);
  --sainik-primary-glow: rgba(251, 113, 133, 0.25);
  --sainik-accent: #fb7185;
  --sainik-accent-soft: rgba(251, 113, 133, 0.12);
  --sainik-gold: #fbbf24;
  --sainik-gold-soft: rgba(251, 191, 36, 0.12);
  --sainik-text: #f1f5f9;
  --sainik-text-secondary: #cbd5e1;
  --sainik-text-muted: #94a3b8;
  --sainik-bg-card: #1e293b;
  --sainik-bg-subtle: #0f172a;
  --sainik-bg-page: #020617;
  --sainik-border: #334155;
  --sainik-border-subtle: rgba(255, 255, 255, 0.08);
  --sainik-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --sainik-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.35);
  --sainik-shadow-md: 0 4px 14px rgba(0, 0, 0, 0.45);
  --sainik-shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.55);
  --sainik-header-bg: linear-gradient(135deg, rgba(251, 113, 133, 0.10) 0%, rgba(251, 113, 133, 0.05) 50%, rgba(251, 191, 36, 0.07) 100%);
  --sainik-header-border: rgba(251, 113, 133, 0.22);
}

/* Dark Mode Subject Overrides */
body.dark-mode[data-subject="mathematics"] {
  --sainik-primary: #34d399;
  --sainik-primary-dark: #059669;
  --sainik-primary-light: #6ee7b7;
  --sainik-primary-soft: rgba(52, 211, 153, 0.12);
  --sainik-primary-glow: rgba(52, 211, 153, 0.25);
  --sainik-accent: #fbbf24;
  --sainik-accent-soft: rgba(251, 191, 36, 0.12);
  --sainik-gold: #f59e0b;
  --sainik-gold-soft: rgba(245, 158, 11, 0.12);
  --sainik-header-bg: linear-gradient(135deg, rgba(52, 211, 153, 0.10) 0%, rgba(16, 185, 129, 0.05) 50%, rgba(251, 191, 36, 0.07) 100%);
  --sainik-header-border: rgba(52, 211, 153, 0.22);
}

body.dark-mode[data-subject="english"] {
  --sainik-primary: #fb7185;
  --sainik-primary-dark: #e11d48;
  --sainik-primary-light: #fda4af;
  --sainik-primary-soft: rgba(251, 113, 133, 0.12);
  --sainik-primary-glow: rgba(251, 113, 133, 0.25);
  --sainik-accent: #fbbf24;
  --sainik-accent-soft: rgba(251, 191, 36, 0.12);
  --sainik-gold: #f59e0b;
  --sainik-gold-soft: rgba(245, 158, 11, 0.12);
  --sainik-header-bg: linear-gradient(135deg, rgba(251, 113, 133, 0.10) 0%, rgba(244, 63, 94, 0.05) 50%, rgba(251, 191, 36, 0.07) 100%);
  --sainik-header-border: rgba(251, 113, 133, 0.22);
}

body.dark-mode[data-subject="general-knowledge"] {
  --sainik-primary: #fbbf24;
  --sainik-primary-dark: #d97706;
  --sainik-primary-light: #fde68a;
  --sainik-primary-soft: rgba(251, 191, 36, 0.12);
  --sainik-primary-glow: rgba(251, 191, 36, 0.25);
  --sainik-accent: #4ade80;
  --sainik-accent-soft: rgba(74, 222, 128, 0.12);
  --sainik-gold: #f59e0b;
  --sainik-gold-soft: rgba(245, 158, 11, 0.12);
  --sainik-header-bg: linear-gradient(135deg, rgba(251, 191, 36, 0.10) 0%, rgba(217, 119, 6, 0.05) 50%, rgba(74, 222, 128, 0.07) 100%);
  --sainik-header-border: rgba(251, 191, 36, 0.22);
}

/* Dark Mode Contrast Optimization for Active Controls */
body.dark-mode .main-tabs-nav .tab-btn.active,
body.dark-mode .q-solution-toggle.active,
body.dark-mode .sub-nav-item.active,
body.dark-mode .topic-nav-btn.next {
  color: #090d16 !important;
  font-weight: 800;
}

/* ==========================================================================
   BASE LAYOUT & OVERFLOW GUARD
   ========================================================================== */
html, body.exam-ui {
  max-width: 100%;
  overflow-x: clip;
}

.sainik-hub-container,
.topic-container,
.subject-container {
  max-width: 1080px;
  margin: 1.25rem auto 3.5rem;
  padding: 0 1.25rem;
  font-family: var(--font-base);
  animation: rimcFadeUp 0.4s ease-out;
  min-width: 0;
}

@keyframes rimcFadeUp {
  0% {
    opacity: 0;
    transform: translateY(12px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   BREADCRUMBS — Compact pill, proper spacing
   ========================================================================== */
.breadcrumbs {
  margin-bottom: 1.25rem;
  font-size: 0.8rem;
  color: var(--sainik-text-muted);
  background: var(--sainik-bg-card);
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--sainik-border);
  box-shadow: var(--sainik-shadow-xs);
  line-height: 1.4;
}
.breadcrumbs a {
  color: var(--sainik-primary);
  text-decoration: none;
  font-weight: 700;
  transition: color var(--transition-fast);
}
.breadcrumbs a:hover {
  color: var(--sainik-primary-light);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
}
.breadcrumbs i {
  font-size: 0.6rem;
  color: var(--sainik-text-muted);
  opacity: 0.55;
}

/* ==========================================================================
   HERO HEADERS — Refined gradient glassmorphism
   ========================================================================== */
.sainik-header,
.topic-header,
.subject-header {
  background: var(--sainik-header-bg);
  border: 1px solid var(--sainik-header-border);
  border-radius: var(--radius-xl);
  padding: 2rem 1.75rem 2.25rem;
  margin-bottom: 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--sainik-shadow-sm);
}
.sainik-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--sainik-primary-soft);
  color: var(--sainik-primary);
  border: 1px solid var(--sainik-primary-glow);
  margin-bottom: 0.85rem;
}
.sainik-header h1,
.topic-header h1,
.subject-header h1 {
  font-family: var(--font-base);
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  font-weight: 800;
  color: var(--sainik-text);
  margin-bottom: 0.6rem;
  line-height: 1.22;
  letter-spacing: -0.03em;
}
.sainik-header p,
.topic-header p,
.subject-header p {
  color: var(--sainik-text-secondary);
  font-size: clamp(0.88rem, 1.6vw, 0.98rem);
  line-height: 1.7;
  max-width: 780px;
  margin: 0 auto;
}
.sainik-meta-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.15rem;
}
.sainik-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  background: var(--sainik-bg-card);
  border: 1px solid var(--sainik-border);
  color: var(--sainik-text-secondary);
  box-shadow: var(--sainik-shadow-xs);
  transition: all var(--transition-fast);
}
.sainik-chip i {
  color: var(--sainik-primary);
  font-size: 0.78rem;
}

/* ==========================================================================
   SUBJECT NAVIGATION SWITCHER
   ========================================================================== */
.subject-nav {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.35rem;
  overflow-x: auto;
  padding: 0.25rem 0 0.5rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.subject-nav::-webkit-scrollbar {
  display: none;
}
.sub-nav-item {
  padding: 0.5rem 1.1rem;
  text-decoration: none;
  color: var(--sainik-text-muted);
  font-size: 0.84rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  background: var(--sainik-bg-card);
  border: 1px solid var(--sainik-border);
  transition: all var(--transition-smooth);
  white-space: nowrap;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: var(--sainik-shadow-xs);
}
.sub-nav-item:hover {
  color: var(--sainik-primary);
  background: var(--sainik-primary-soft);
  border-color: var(--sainik-primary);
  transform: translateY(-1px);
  box-shadow: var(--sainik-shadow-sm);
}
.sub-nav-item.active {
  background: var(--sainik-primary);
  color: #fff;
  border-color: var(--sainik-primary);
  box-shadow: 0 3px 12px var(--sainik-primary-glow);
}

/* ==========================================================================
   STICKY MAIN TABS NAVIGATION — Polished pill bar
   ========================================================================== */
.main-tabs-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.35rem;
  background: var(--sainik-bg-card);
  border: 1px solid var(--sainik-border);
  border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
  position: sticky;
  top: 72px;
  z-index: 90;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--sainik-shadow-md);
  justify-content: center;
}
.main-tabs-nav .tab-btn {
  border: none;
  background: transparent;
  color: var(--sainik-text-muted);
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-weight: 700;
  font-size: 0.85rem;
  font-family: var(--font-base);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: all var(--transition-smooth);
  white-space: nowrap !important;
  flex: 0 0 auto !important;
  width: auto !important;
  min-width: max-content !important;
  height: auto !important;
  min-height: 0 !important;
  position: relative;
}
.main-tabs-nav .tab-btn i {
  font-size: 0.78rem;
  opacity: 0.8;
}
.main-tabs-nav .tab-btn:hover {
  background: var(--sainik-primary-soft);
  color: var(--sainik-primary);
}
.main-tabs-nav .tab-btn.active {
  background: var(--sainik-primary);
  color: #fff;
  box-shadow: 0 2px 8px var(--sainik-primary-glow);
}
.main-tabs-nav .tab-btn.active i {
  opacity: 1;
}

/* MathJax Accessibility */
mjx-assistive-mml {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(1px, 1px, 1px, 1px) !important;
}

/* ==========================================================================
   TAB PANELS — Smooth reveal
   ========================================================================== */
.tab-panel {
  display: none;
  animation: rimcFadeUp 0.3s ease-out;
  min-width: 0;
}
.tab-panel.active {
  display: block;
}

/* ==========================================================================
   CARD FOUNDATIONS — Consistent elevation, tight spacing
   ========================================================================== */
.theory-block,
.card-premium {
  background: var(--sainik-bg-card);
  border: 1px solid var(--sainik-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.65rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--sainik-shadow-sm);
  line-height: 1.72;
  color: var(--sainik-text-secondary);
  min-width: 0;
  word-wrap: break-word;
  overflow-wrap: break-word;
}
.theory-block h2,
.card-title {
  font-family: var(--font-base);
  font-size: 1.22rem;
  font-weight: 800;
  color: var(--sainik-text);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  border-bottom: 2px solid var(--sainik-primary-soft);
  padding-bottom: 0.6rem;
  letter-spacing: -0.01em;
}
.theory-block h2 i,
.card-title i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--sainik-primary-soft);
  color: var(--sainik-primary);
  font-size: 0.88rem;
  flex-shrink: 0;
}
.theory-subheading {
  font-family: var(--font-base);
  font-size: 1.04rem;
  font-weight: 800;
  color: var(--sainik-text);
  margin: 1.35rem 0 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  letter-spacing: -0.005em;
}
.theory-subheading i {
  color: var(--sainik-primary);
  font-size: 0.88rem;
}

/* ==========================================================================
   FORMULAS — Clean card stack
   ========================================================================== */
.formula-showcase {
  background: var(--sainik-bg-subtle);
  border: 1px solid var(--sainik-border);
  border-radius: var(--radius-lg);
  padding: 1.15rem;
  margin: 1.15rem 0;
}
.formula-card {
  background: var(--sainik-bg-card);
  border: 1px solid var(--sainik-border);
  border-left: 3.5px solid var(--sainik-primary);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.15rem;
  margin-bottom: 0.75rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  min-width: 0;
  box-shadow: var(--sainik-shadow-xs);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.formula-card:hover {
  border-color: var(--sainik-primary-glow);
  box-shadow: var(--sainik-shadow-sm);
}
.formula-card:last-child {
  margin-bottom: 0;
}
.formula-label {
  font-weight: 800;
  color: var(--sainik-primary);
  font-size: 0.85rem;
  margin-bottom: 0.3rem;
  letter-spacing: 0.015em;
}
.formula-math {
  overflow-x: auto;
  max-width: 100%;
}

/* ==========================================================================
   CALLOUT CARDS — Exam Tips, Traps, Tricks
   ========================================================================== */
.exam-tip,
.cadet-strategy {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin: 1rem 0;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9rem;
  line-height: 1.62;
  background: var(--sainik-primary-soft);
  border-left: 3.5px solid var(--sainik-primary);
  color: var(--sainik-text);
  min-width: 0;
}
.sainik-descriptive-box {
  background: var(--sainik-bg-card);
  border: 1px solid var(--sainik-primary-glow);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.35rem;
  margin: 1.15rem 0;
  box-shadow: var(--sainik-shadow-xs);
}
.sainik-step {
  margin-bottom: 0.75rem;
  padding: 0.7rem 1rem 0.7rem 1.1rem;
  border-left: 3px solid var(--sainik-gold);
  background: var(--sainik-bg-subtle);
  border-radius: var(--radius-sm);
  min-width: 0;
  transition: background var(--transition-fast);
}
.sainik-step:hover {
  background: var(--sainik-gold-soft);
}
.sainik-step-title {
  font-weight: 800;
  color: var(--sainik-primary);
  font-size: 0.9rem;
  margin-bottom: 0.2rem;
}

/* ==========================================================================
   PREMIUM TABLES — Precise alignment & hover micro-interaction
   ========================================================================== */
.premium-table-container {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  margin: 1.15rem 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--sainik-border);
  box-shadow: var(--sainik-shadow-xs);
  background: var(--sainik-bg-card);
  -webkit-overflow-scrolling: touch;
}
.premium-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}
.premium-table th {
  background: var(--sainik-primary-soft);
  color: var(--sainik-primary);
  font-weight: 800;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--sainik-border);
  white-space: nowrap;
  position: sticky;
  top: 0;
}
.premium-table td {
  padding: 0.72rem 1rem;
  border-bottom: 1px solid var(--sainik-border-subtle);
  color: var(--sainik-text-secondary);
  line-height: 1.6;
  vertical-align: top;
}
.premium-table tr:last-child td {
  border-bottom: none;
}
.premium-table tbody tr {
  transition: background var(--transition-fast);
}
.premium-table tbody tr:hover td {
  background: var(--sainik-bg-subtle);
}

/* ==========================================================================
   TAGS & CHIPS — Consistent micro-badges
   ========================================================================== */
.syllabus-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}
.syllabus-tag {
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.22rem 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--sainik-primary-soft);
  color: var(--sainik-primary);
  border: 1px solid var(--sainik-primary-glow);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.syllabus-tag i {
  font-size: 0.65rem;
}

/* ==========================================================================
   PRACTICE QUESTION CARDS — Elevated interaction design
   ========================================================================== */
.practice-q-card {
  background: var(--sainik-bg-card);
  border: 1px solid var(--sainik-border);
  border-radius: var(--radius-lg);
  padding: 1.35rem 1.5rem;
  margin-bottom: 1rem;
  box-shadow: var(--sainik-shadow-xs);
  transition: all var(--transition-smooth);
  min-width: 0;
  word-wrap: break-word;
  overflow-wrap: break-word;
}
.practice-q-card:hover {
  border-color: var(--sainik-primary-glow);
  box-shadow: var(--sainik-shadow-md);
  transform: translateY(-1px);
}
.q-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  gap: 0.5rem;
}
.q-badge {
  background: var(--sainik-primary-soft);
  color: var(--sainik-primary);
  font-weight: 800;
  font-size: 0.76rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--sainik-primary-glow);
  letter-spacing: 0.02em;
}
.q-marks {
  font-size: 0.74rem;
  font-weight: 800;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  background: var(--sainik-gold-soft);
  color: var(--sainik-gold);
  border: 1px solid var(--sainik-gold-soft);
}
.q-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--sainik-text);
  margin-bottom: 0.85rem;
  line-height: 1.65;
}
.q-solution-toggle {
  background: var(--sainik-bg-card);
  border: 1.5px solid var(--sainik-primary);
  color: var(--sainik-primary);
  font-weight: 700;
  font-size: 0.82rem;
  padding: 0.42rem 1.05rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-smooth);
  box-shadow: var(--sainik-shadow-xs);
}
.q-solution-toggle:hover {
  background: var(--sainik-primary-soft);
  transform: translateY(-1px);
  box-shadow: var(--sainik-shadow-sm);
}
.q-solution-toggle.active {
  background: var(--sainik-primary);
  color: #fff;
  border-color: var(--sainik-primary);
  box-shadow: 0 3px 10px var(--sainik-primary-glow);
}
.q-solution-body {
  display: none;
  margin-top: 0.85rem;
  padding: 1.05rem 1.25rem;
  background: var(--sainik-bg-subtle);
  border-radius: var(--radius-md);
  border-left: 3.5px solid var(--sainik-primary);
  font-size: 0.9rem;
  line-height: 1.68;
  min-width: 0;
}
.q-solution-body.open {
  display: block;
  animation: rimcFadeUp 0.2s ease-out;
}

/* ==========================================================================
   TOPIC NAVIGATION FOOTER — Polished pagination buttons
   ========================================================================== */
.topic-nav-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin: 2rem 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--sainik-border);
}
.topic-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  background: var(--sainik-bg-card);
  border: 1px solid var(--sainik-border);
  color: var(--sainik-text-secondary);
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  transition: all var(--transition-smooth);
  box-shadow: var(--sainik-shadow-xs);
  max-width: 48%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.topic-nav-btn:hover {
  color: var(--sainik-primary);
  border-color: var(--sainik-primary);
  background: var(--sainik-primary-soft);
  transform: translateY(-1px);
  box-shadow: var(--sainik-shadow-sm);
}
.topic-nav-btn.next {
  background: var(--sainik-primary);
  color: #fff;
  border-color: var(--sainik-primary);
  margin-left: auto;
  box-shadow: 0 3px 10px var(--sainik-primary-glow);
}
.topic-nav-btn.next:hover {
  background: var(--sainik-primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--sainik-primary-glow);
}

/* ==========================================================================
   FAQs — Polished accordion micro-interactions
   ========================================================================== */
.faq-accordion {
  margin: 1.15rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.faq-item {
  background: var(--sainik-bg-card);
  border: 1px solid var(--sainik-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--sainik-shadow-xs);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.faq-item[open] {
  border-color: var(--sainik-primary-glow);
  box-shadow: var(--sainik-shadow-sm);
}
.faq-question {
  padding: 0.85rem 1.15rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--sainik-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  gap: 0.75rem;
  transition: background var(--transition-fast);
  -webkit-user-select: none;
  user-select: none;
}
.faq-question:hover {
  background: var(--sainik-bg-subtle);
}
.faq-question::-webkit-details-marker {
  display: none;
}
.faq-question:after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 0.68rem;
  color: var(--sainik-primary);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}
.faq-item[open] .faq-question:after {
  transform: rotate(180deg);
}
.faq-answer {
  padding: 0.75rem 1.15rem 1rem;
  font-size: 0.88rem;
  color: var(--sainik-text-secondary);
  line-height: 1.68;
  border-top: 1px solid var(--sainik-border-subtle);
  background: var(--sainik-bg-subtle);
}

/* ==========================================================================
   HUB TOPIC GRID & CARDS — Consistent elevation, smooth hover
   ========================================================================== */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.topic-card {
  background: var(--sainik-bg-card);
  border: 1px solid var(--sainik-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.35rem;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
  box-shadow: var(--sainik-shadow-xs);
  position: relative;
}
.topic-card:hover {
  transform: translateY(-3px);
  border-color: var(--sainik-primary);
  box-shadow: var(--sainik-shadow-lg);
}
.topic-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.55rem;
}
.topic-number {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--sainik-primary);
  background: var(--sainik-primary-soft);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--sainik-primary-glow);
}
.topic-card h3 {
  font-size: 1.04rem;
  font-weight: 800;
  color: var(--sainik-text);
  margin: 0 0 0.4rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
}
.topic-card p {
  font-size: 0.84rem;
  color: var(--sainik-text-muted);
  margin: 0 0 0.85rem;
  line-height: 1.52;
  flex-grow: 1;
}
.topic-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.75rem;
  border-top: 1px solid var(--sainik-border-subtle);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--sainik-primary);
}
.topic-card-footer span:last-child i {
  transition: transform var(--transition-fast);
}
.topic-card:hover .topic-card-footer span:last-child i {
  transform: translateX(4px);
}

/* ==========================================================================
   DESCRIPTIVE RUBRIC GRID — Clear tiered cards
   ========================================================================== */
.rubric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin: 1.15rem 0;
}
.rubric-card {
  background: var(--sainik-bg-card);
  border: 1px solid var(--sainik-border);
  border-top: 3px solid var(--sainik-primary);
  border-radius: var(--radius-md);
  padding: 1.05rem;
  position: relative;
  min-width: 0;
  box-shadow: var(--sainik-shadow-xs);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.rubric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--sainik-shadow-md);
}
.rubric-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}
.rubric-card-title {
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--sainik-primary);
}

/* Trap & Trick Cards — Warning/Caution callouts */
.trap-card {
  background: rgba(225, 29, 72, 0.04);
  border: 1px solid rgba(225, 29, 72, 0.15);
  border-left: 3.5px solid #e11d48;
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-bottom: 0.85rem;
  min-width: 0;
}
.trap-header {
  font-weight: 800;
  color: #be123c;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
body.dark-mode .trap-card {
  background: rgba(225, 29, 72, 0.08);
  border-color: rgba(225, 29, 72, 0.22);
}
body.dark-mode .trap-header {
  color: #fb7185;
}
.trick-card {
  background: rgba(217, 119, 6, 0.04);
  border: 1px solid rgba(217, 119, 6, 0.18);
  border-left: 3.5px solid #d97706;
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-bottom: 0.85rem;
  min-width: 0;
}
.trick-header {
  font-weight: 800;
  color: #b45309;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
body.dark-mode .trick-card {
  background: rgba(217, 119, 6, 0.08);
  border-color: rgba(217, 119, 6, 0.22);
}
body.dark-mode .trick-header {
  color: #fbbf24;
}
.cadet-model-snippet {
  background: var(--sainik-bg-subtle);
  border: 1px dashed var(--sainik-border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.85rem;
  margin-top: 0.5rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Courier New", monospace;
  font-size: 0.82rem;
  color: var(--sainik-text);
  line-height: 1.5;
}
.section-divider-banner {
  background: var(--sainik-header-bg);
  border: 1px solid var(--sainik-header-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--sainik-text);
  box-shadow: var(--sainik-shadow-xs);
}

/* ==========================================================================
   MATHJAX OVERFLOW CONTAINMENT
   ========================================================================== */
mjx-container {
  max-width: 100% !important;
  overflow-x: auto !important;
  overflow-y: hidden !important;
  -webkit-overflow-scrolling: touch;
}
mjx-container[display="true"] {
  display: block !important;
  max-width: 100% !important;
  overflow-x: auto !important;
  overflow-y: hidden !important;
  margin: 0.5rem 0 !important;
  padding: 0.2rem 0 !important;
}

/* ==========================================================================
   VECTOR DIAGRAMS, SCHEMATICS & CHARTS — Refined card
   ========================================================================== */
.diagram-container {
  background: var(--sainik-bg-card);
  border: 1px solid var(--sainik-border);
  border-radius: var(--radius-lg);
  margin: 1.35rem 0;
  overflow: hidden;
  box-shadow: var(--sainik-shadow-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.diagram-container:hover {
  border-color: var(--sainik-primary-glow);
  box-shadow: var(--sainik-shadow-md);
}
.diagram-header {
  background: var(--sainik-bg-subtle);
  border-bottom: 1px solid var(--sainik-border);
  padding: 0.65rem 1.15rem;
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--sainik-primary);
  display: flex;
  align-items: center;
  gap: 0.45rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.diagram-header i {
  font-size: 0.75rem;
  opacity: 0.85;
}
.diagram-canvas {
  padding: 1.25rem 1.15rem;
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--sainik-bg-card);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.diagram-canvas svg {
  max-width: 100%;
  height: auto;
  display: block;
}
.diagram-caption {
  background: var(--sainik-bg-subtle);
  border-top: 1px solid var(--sainik-border);
  padding: 0.65rem 1.15rem;
  font-size: 0.82rem;
  color: var(--sainik-text-secondary);
  line-height: 1.58;
}
.diagram-caption strong {
  color: var(--sainik-primary);
}

/* Dark Mode SVG diagram background inversion */
body.dark-mode .diagram-canvas svg rect[fill="#f8fafc"],
body.dark-mode .diagram-canvas svg rect[fill="#f8fafb"] {
  fill: var(--sainik-bg-card);
}
body.dark-mode .diagram-canvas svg rect[fill="#ffffff"] {
  fill: var(--sainik-bg-subtle);
}
body.dark-mode .diagram-canvas svg text[fill="#1e293b"],
body.dark-mode .diagram-canvas svg text[fill="#334155"] {
  fill: var(--sainik-text);
}
body.dark-mode .diagram-canvas svg text[fill="#64748b"] {
  fill: var(--sainik-text-muted);
}
body.dark-mode .diagram-canvas svg line[stroke="#1e293b"] {
  stroke: var(--sainik-text-muted);
}
body.dark-mode .diagram-canvas svg rect[fill="#e2e8f0"] {
  fill: var(--sainik-border);
}
body.dark-mode .diagram-canvas svg rect[stroke="#e2e8f0"],
body.dark-mode .diagram-canvas svg line[stroke="#e2e8f0"] {
  stroke: var(--sainik-border);
}

/* ==========================================================================
   TYPOGRAPHY POLISH — Lists, links, inline code
   ========================================================================== */
.theory-block ul,
.theory-block ol {
  padding-left: 1.35rem;
  margin: 0.5rem 0;
}
.theory-block ul li,
.theory-block ol li {
  margin-bottom: 0.4rem;
  line-height: 1.65;
}
.theory-block ul li::marker {
  color: var(--sainik-primary);
}
.theory-block a {
  color: var(--sainik-primary);
  text-decoration-color: var(--sainik-primary-glow);
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}
.theory-block a:hover {
  color: var(--sainik-primary-light);
  text-decoration-thickness: 2px;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS — Mobile pixel perfection
   ========================================================================== */
@media (max-width: 768px) {
  .sainik-hub-container,
  .topic-container,
  .subject-container {
    padding: 0 0.75rem 2rem;
    margin-top: 0.5rem;
  }
  .sainik-header,
  .topic-header,
  .subject-header {
    padding: 1.35rem 1rem 1.5rem;
    border-radius: var(--radius-lg);
  }
  .main-tabs-nav {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    justify-content: flex-start;
    border-radius: var(--radius-lg);
    top: 60px;
    padding: 0.3rem 0.4rem;
    gap: 0.3rem;
    max-height: 50px;
    height: 48px;
  }
  .main-tabs-nav::-webkit-scrollbar {
    display: none;
  }
  .main-tabs-nav .tab-btn {
    font-size: 0.78rem;
    padding: 0.4rem 0.75rem;
    height: 36px;
    line-height: 1;
    white-space: nowrap !important;
    flex: 0 0 auto !important;
    width: auto !important;
    min-width: max-content !important;
  }
  .topic-grid {
    grid-template-columns: 1fr;
  }
  .rubric-grid {
    grid-template-columns: 1fr;
  }
  .theory-block,
  .card-premium,
  .practice-q-card {
    padding: 1.15rem 1rem;
  }
  .theory-block h2,
  .card-title {
    font-size: 1.1rem;
    gap: 0.45rem;
  }
  .theory-block h2 i,
  .card-title i {
    width: 28px;
    height: 28px;
    font-size: 0.82rem;
    border-radius: 7px;
  }
  .q-header {
    flex-direction: row;
    gap: 0.4rem;
  }
  .topic-nav-footer {
    flex-direction: column;
    align-items: stretch;
  }
  .topic-nav-btn {
    justify-content: center;
    width: 100%;
    max-width: 100%;
  }
  .topic-nav-btn.next {
    margin-left: 0;
  }
  .diagram-canvas {
    padding: 0.85rem 0.65rem;
  }
  .diagram-header,
  .diagram-caption {
    padding: 0.55rem 0.85rem;
    font-size: 0.76rem;
  }
  .formula-showcase {
    padding: 0.85rem;
  }
  .formula-card {
    padding: 0.75rem 0.95rem;
  }
  .faq-question {
    font-size: 0.85rem;
    padding: 0.75rem 1rem;
  }
  .faq-answer {
    padding: 0.65rem 1rem 0.85rem;
    font-size: 0.84rem;
  }
  .premium-table th {
    font-size: 0.72rem;
    padding: 0.6rem 0.75rem;
  }
  .premium-table td {
    font-size: 0.82rem;
    padding: 0.6rem 0.75rem;
  }
}

/* Small mobile (< 400px) additional tightening */
@media (max-width: 400px) {
  .sainik-header h1,
  .topic-header h1,
  .subject-header h1 {
    font-size: 1.32rem;
  }
  .sainik-header p,
  .topic-header p,
  .subject-header p {
    font-size: 0.84rem;
  }
  .breadcrumbs {
    font-size: 0.72rem;
    padding: 0.3rem 0.7rem;
    gap: 0.25rem;
  }
  .sainik-chip {
    font-size: 0.7rem;
    padding: 0.25rem 0.6rem;
  }
  .main-tabs-nav .tab-btn {
    font-size: 0.72rem;
    padding: 0.35rem 0.6rem;
    height: 34px;
  }
}

/* ==========================================================================
   PRINT STYLES — Clean reading mode
   ========================================================================== */
@media print {
  .main-tabs-nav,
  .breadcrumbs,
  .topic-nav-footer,
  .q-solution-toggle,
  #header-container,
  #footer-container {
    display: none !important;
  }
  .tab-panel {
    display: block !important;
  }
  .q-solution-body {
    display: block !important;
  }
  .theory-block,
  .card-premium,
  .practice-q-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
  .diagram-container {
    break-inside: avoid;
  }
}

/* Subject Theme Color Overrides */
body.theme-math {
  --sainik-primary: #166534;
  --sainik-primary-dark: #14532d;
  --sainik-primary-light: #15803d;
  --sainik-primary-soft: rgba(22, 101, 52, 0.08);
  --sainik-primary-glow: rgba(22, 101, 52, 0.22);
  --sainik-header-bg: linear-gradient(135deg, rgba(22, 101, 52, 0.08) 0%, rgba(180, 83, 9, 0.04) 100%);
  --sainik-header-border: rgba(22, 101, 52, 0.2);
}

body.theme-intelligence {
  --sainik-primary: #581c87;
  --sainik-primary-dark: #3b0764;
  --sainik-primary-light: #6b21a8;
  --sainik-primary-soft: rgba(88, 28, 135, 0.08);
  --sainik-primary-glow: rgba(88, 28, 135, 0.22);
  --sainik-header-bg: linear-gradient(135deg, rgba(88, 28, 135, 0.08) 0%, rgba(159, 18, 57, 0.04) 100%);
  --sainik-header-border: rgba(88, 28, 135, 0.2);
}

body.theme-english {
  --sainik-primary: #9f1239;
  --sainik-primary-dark: #881337;
  --sainik-primary-light: #be123c;
  --sainik-primary-soft: rgba(159, 18, 57, 0.08);
  --sainik-primary-glow: rgba(159, 18, 57, 0.22);
  --sainik-header-bg: linear-gradient(135deg, rgba(159, 18, 57, 0.08) 0%, rgba(180, 83, 9, 0.04) 100%);
  --sainik-header-border: rgba(159, 18, 57, 0.2);
}

body.theme-gk {
  --sainik-primary: #92400e;
  --sainik-primary-dark: #78350f;
  --sainik-primary-light: #b45309;
  --sainik-primary-soft: rgba(146, 64, 14, 0.08);
  --sainik-primary-glow: rgba(146, 64, 14, 0.22);
  --sainik-header-bg: linear-gradient(135deg, rgba(146, 64, 14, 0.08) 0%, rgba(22, 101, 52, 0.04) 100%);
  --sainik-header-border: rgba(146, 64, 14, 0.2);
}

body.theme-science {
  --sainik-primary: #047857;
  --sainik-primary-dark: #064e3b;
  --sainik-primary-light: #059669;
  --sainik-primary-soft: rgba(4, 120, 87, 0.08);
  --sainik-primary-glow: rgba(4, 120, 87, 0.22);
  --sainik-header-bg: linear-gradient(135deg, rgba(4, 120, 87, 0.08) 0%, rgba(180, 83, 9, 0.04) 100%);
  --sainik-header-border: rgba(4, 120, 87, 0.2);
}

body.theme-social-science {
  --sainik-primary: #c2410c;
  --sainik-primary-dark: #7c2d12;
  --sainik-primary-light: #ea580c;
  --sainik-primary-soft: rgba(194, 65, 12, 0.08);
  --sainik-primary-glow: rgba(194, 65, 12, 0.22);
  --sainik-header-bg: linear-gradient(135deg, rgba(194, 65, 12, 0.08) 0%, rgba(136, 19, 55, 0.04) 100%);
  --sainik-header-border: rgba(194, 65, 12, 0.2);
}

/* ==========================================================================
   PORTAL HEADER & STATS CONTRAST FIXES (WCAG AAA & NO BLUE)
   Overrides global "header" rules that forced sticky 84px height.
   ========================================================================== */
header.sainik-page-header,
.sainik-page-header,
.sainik-header {
  height: auto !important;
  position: static !important;
  display: block !important;
  padding: 2.25rem 2rem 2.5rem !important;
  margin: 1.25rem 0 2rem !important;
  background: var(--sainik-header-bg) !important;
  border: 1px solid var(--sainik-header-border) !important;
  border-radius: var(--radius-xl) !important;
  box-shadow: var(--sainik-shadow-sm) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  text-align: center !important;
  z-index: 1 !important;
  overflow: visible !important;
}

header.sainik-page-header h1,
.sainik-page-header h1,
.sainik-header h1 {
  font-family: var(--font-base) !important;
  font-size: clamp(1.6rem, 3.2vw, 2.3rem) !important;
  font-weight: 800 !important;
  color: var(--sainik-text) !important;
  margin: 0.6rem 0 0.8rem !important;
  line-height: 1.25 !important;
  letter-spacing: -0.025em !important;
}

.sainik-lead-text,
.sainik-header p,
.sainik-page-header p {
  color: var(--sainik-text-secondary) !important;
  font-size: 0.98rem !important;
  line-height: 1.7 !important;
  max-width: 820px !important;
  margin: 0 auto 1.5rem !important;
}

.sainik-stats-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)) !important;
  gap: 0.85rem !important;
  margin-top: 1.5rem !important;
  width: 100% !important;
  position: static !important;
}

.stat-box {
  background: #ffffff !important;
  color: #0f172a !important;
  border: 1px solid var(--sainik-border) !important;
  border-radius: var(--radius-md) !important;
  padding: 0.9rem 1rem !important;
  text-align: center !important;
  box-shadow: var(--sainik-shadow-xs) !important;
  transition: transform var(--transition-fast) !important;
}

.stat-box:hover {
  transform: translateY(-2px) !important;
  box-shadow: var(--sainik-shadow-md) !important;
}

.stat-val {
  font-size: 1.65rem !important;
  font-weight: 800 !important;
  color: var(--sainik-primary) !important;
  line-height: 1.1 !important;
}

.stat-lbl {
  font-size: 0.76rem !important;
  font-weight: 700 !important;
  color: var(--sainik-text-secondary) !important;
  text-transform: uppercase !important;
  letter-spacing: 0.04em !important;
  margin-top: 0.35rem !important;
}

.subject-cards-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)) !important;
  gap: 1.25rem !important;
  margin: 1.5rem 0 2.5rem !important;
}

.subject-cards-grid .topic-card,
.topic-grid .topic-card {
  background: #ffffff !important;
  color: #0f172a !important;
  border: 1px solid var(--sainik-border) !important;
  border-radius: var(--radius-lg) !important;
  padding: 1.4rem 1.5rem !important;
  box-shadow: var(--sainik-shadow-sm) !important;
  text-decoration: none !important;
  display: flex !important;
  flex-direction: column !important;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-fast) !important;
}

.subject-cards-grid .topic-card:hover,
.topic-grid .topic-card:hover {
  transform: translateY(-3px) !important;
  box-shadow: var(--sainik-shadow-lg) !important;
}

.subject-cards-grid .topic-card h3,
.topic-grid .topic-card h3 {
  color: #0f172a !important;
  font-size: 1.15rem !important;
  font-weight: 800 !important;
  margin: 0.5rem 0 0.4rem !important;
  line-height: 1.35 !important;
}

.subject-cards-grid .topic-card p,
.topic-grid .topic-card p {
  color: #334155 !important;
  font-size: 0.88rem !important;
  line-height: 1.6 !important;
  margin: 0 0 1rem !important;
  flex-grow: 1 !important;
}

.topic-card-header {
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  margin-bottom: 0.6rem !important;
}

.topic-card-footer {
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  padding-top: 0.85rem !important;
  border-top: 1px solid var(--sainik-border-subtle) !important;
  font-size: 0.82rem !important;
  font-weight: 700 !important;
}

/* Dark Mode Contrast Hardening */
body.dark-mode .sainik-header,
:root[data-theme="dark"] .sainik-header {
  background: #131d2e !important;
  border: 1px solid #243247 !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4) !important;
}

body.dark-mode .sainik-header h1,
:root[data-theme="dark"] .sainik-header h1 {
  color: #f8fafc !important;
}

body.dark-mode .sainik-lead-text,
body.dark-mode .sainik-header p,
:root[data-theme="dark"] .sainik-lead-text,
:root[data-theme="dark"] .sainik-header p {
  color: #cbd5e1 !important;
}

body.dark-mode .sainik-lead-text strong,
body.dark-mode .sainik-header p strong,
:root[data-theme="dark"] .sainik-lead-text strong,
:root[data-theme="dark"] .sainik-header p strong {
  color: #f8fafc !important;
}

body.dark-mode .sainik-badge,
:root[data-theme="dark"] .sainik-badge {
  background: rgba(244, 63, 94, 0.15) !important;
  color: #fecdd3 !important;
  border: 1px solid rgba(244, 63, 94, 0.35) !important;
}

body.dark-mode .breadcrumbs,
:root[data-theme="dark"] .breadcrumbs {
  background: #182234 !important;
  border: 1px solid #2e3e56 !important;
  color: #cbd5e1 !important;
}

body.dark-mode .breadcrumbs a,
:root[data-theme="dark"] .breadcrumbs a {
  color: #fda4af !important;
}

body.dark-mode .breadcrumbs a:hover,
:root[data-theme="dark"] .breadcrumbs a:hover {
  color: #fecdd3 !important;
}

body.dark-mode .breadcrumbs span,
:root[data-theme="dark"] .breadcrumbs span {
  color: #f1f5f9 !important;
  font-weight: 600 !important;
}

body.dark-mode .breadcrumbs i,
:root[data-theme="dark"] .breadcrumbs i {
  color: #94a3b8 !important;
  opacity: 0.85 !important;
}

body.dark-mode .stat-box,
:root[data-theme="dark"] .stat-box {
  background: #182234 !important;
  color: #f1f5f9 !important;
  border: 1px solid #2e3e56 !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25) !important;
}

body.dark-mode .stat-box:hover,
:root[data-theme="dark"] .stat-box:hover {
  border-color: rgba(244, 63, 94, 0.45) !important;
  transform: translateY(-2px) !important;
}

body.dark-mode .stat-val,
:root[data-theme="dark"] .stat-val {
  color: #fb7185 !important;
  text-shadow: 0 0 16px rgba(251, 113, 133, 0.25) !important;
}

body.dark-mode .stat-lbl,
:root[data-theme="dark"] .stat-lbl {
  color: #cbd5e1 !important;
  letter-spacing: 0.05em !important;
}

body.dark-mode .subject-cards-grid .topic-card,
:root[data-theme="dark"] .subject-cards-grid .topic-card,
body.dark-mode .topic-grid .topic-card,
:root[data-theme="dark"] .topic-grid .topic-card {
  background: #1e293b !important;
  color: #f1f5f9 !important;
  border-color: #334155 !important;
}

body.dark-mode .subject-cards-grid .topic-card h3,
:root[data-theme="dark"] .subject-cards-grid .topic-card h3,
body.dark-mode .topic-grid .topic-card h3,
:root[data-theme="dark"] .topic-grid .topic-card h3 {
  color: #f8fafc !important;
}

body.dark-mode .subject-cards-grid .topic-card p,
:root[data-theme="dark"] .subject-cards-grid .topic-card p,
body.dark-mode .topic-grid .topic-card p,
:root[data-theme="dark"] .topic-grid .topic-card p {
  color: #cbd5e1 !important;
}

body.dark-mode .card-premium,
:root[data-theme="dark"] .card-premium,
body.dark-mode .theory-block,
:root[data-theme="dark"] .theory-block {
  background: #1e293b !important;
  border-color: #334155 !important;
  color: #cbd5e1 !important;
}

body.dark-mode .card-title,
:root[data-theme="dark"] .card-title,
body.dark-mode .theory-block h2,
:root[data-theme="dark"] .theory-block h2,
body.dark-mode .theory-subheading,
:root[data-theme="dark"] .theory-subheading {
  color: #f8fafc !important;
}

/* Topic Header Card & Tabs (Pixel Perfect & Zero-Blue) */
.topic-header-card {
  background: var(--sainik-header-bg) !important;
  border: 1px solid var(--sainik-header-border) !important;
  border-radius: var(--radius-xl) !important;
  padding: 1.75rem 1.75rem 1.85rem !important;
  margin-bottom: 1.5rem !important;
  box-shadow: var(--sainik-shadow-sm) !important;
}

.sainik-tabs-wrapper {
  margin-bottom: 1.5rem !important;
  overflow-x: auto !important;
  -webkit-overflow-scrolling: touch !important;
  scrollbar-width: none !important;
}
.sainik-tabs-wrapper::-webkit-scrollbar {
  display: none !important;
}

.sainik-tabs-nav {
  display: flex !important;
  gap: 0.5rem !important;
  padding: 0.35rem 0.4rem !important;
  background: #ffffff !important;
  border: 1px solid var(--sainik-border) !important;
  border-radius: var(--radius-full) !important;
  box-shadow: var(--sainik-shadow-xs) !important;
  width: max-content !important;
  max-width: 100% !important;
}

.sainik-tab-btn {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.45rem !important;
  padding: 0.55rem 1.15rem !important;
  font-size: 0.86rem !important;
  font-weight: 700 !important;
  border-radius: var(--radius-full) !important;
  border: none !important;
  background: transparent !important;
  color: var(--sainik-text-secondary) !important;
  cursor: pointer !important;
  transition: all var(--transition-fast) !important;
  white-space: nowrap !important;
}

.sainik-tab-btn:hover {
  background: var(--sainik-primary-soft) !important;
  color: var(--sainik-primary) !important;
}

.sainik-tab-btn.active {
  background: var(--sainik-primary) !important;
  color: #ffffff !important;
  box-shadow: 0 2px 8px var(--sainik-primary-glow) !important;
}

.sainik-tab-panel {
  animation: rimcFadeUp 0.3s ease-out !important;
  min-width: 0 !important;
}

body.dark-mode .sainik-tabs-nav,
:root[data-theme="dark"] .sainik-tabs-nav {
  background: #1e293b !important;
  border-color: #334155 !important;
}

body.dark-mode .sainik-tab-btn,
:root[data-theme="dark"] .sainik-tab-btn {
  color: #cbd5e1 !important;
}

body.dark-mode .sainik-tab-btn.active,
:root[data-theme="dark"] .sainik-tab-btn.active {
  background: var(--sainik-primary) !important;
  color: #090d16 !important;
  font-weight: 800 !important;
}

/* ==========================================================================
   SAINIK SYLLABUS TRACKER STYLES (WCAG AAA & NO BLUE)
   ========================================================================== */
.sainik-tracker-card {
  background: var(--sainik-bg-card, #ffffff);
  border: 1px solid var(--sainik-border, #e2e8f0);
  border-radius: var(--radius-xl, 1rem);
  padding: 1.75rem;
  margin-top: 2.5rem;
  box-shadow: var(--sainik-shadow-sm, 0 1px 3px rgba(0,0,0,0.06));
}

.sainik-tracker-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.sainik-tracker-title h2 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--sainik-primary, #881337);
  margin: 0 0 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.sainik-tracker-title p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--sainik-text-secondary, #64748b);
  line-height: 1.5;
}

.sainik-tracker-metrics {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.tracker-metric-box {
  background: var(--sainik-bg-subtle, #f8fafc);
  border: 1px solid var(--sainik-border, #e2e8f0);
  border-radius: var(--radius-md, 0.5rem);
  padding: 0.6rem 0.9rem;
  text-align: center;
  min-width: 85px;
}

.tracker-metric-num {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--sainik-primary, #881337);
  line-height: 1;
}

.tracker-metric-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--sainik-text-secondary, #64748b);
  margin-top: 0.25rem;
}

/* Master Progress Bar */
.sainik-progress-bar-wrap {
  background: var(--sainik-bg-subtle, #f1f5f9);
  border: 1px solid var(--sainik-border, #cbd5e1);
  border-radius: var(--radius-full, 9999px);
  height: 12px;
  overflow: hidden;
  margin-bottom: 1.5rem;
  position: relative;
}

.sainik-progress-bar-fill {
  background: linear-gradient(90deg, #166534 0%, #881337 100%);
  height: 100%;
  border-radius: var(--radius-full, 9999px);
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0%;
}

/* Tracker Controls & Filter Bar */
.sainik-tracker-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--sainik-border, #e2e8f0);
}

.sainik-filter-tabs {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.sainik-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-full, 9999px);
  border: 1px solid var(--sainik-border, #cbd5e1);
  background: var(--sainik-bg-subtle, #f8fafc);
  color: var(--sainik-text-secondary, #475569);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast, 0.15s ease);
}

.sainik-filter-btn:hover {
  background: rgba(136, 19, 55, 0.06);
  color: #881337;
  border-color: rgba(136, 19, 55, 0.3);
}

.sainik-filter-btn.active {
  background: #881337;
  color: #ffffff;
  border-color: #881337;
}

.sainik-tracker-search-wrap {
  position: relative;
  min-width: 220px;
  flex: 1;
  max-width: 340px;
}

.sainik-tracker-search-wrap i {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--sainik-text-secondary, #94a3b8);
  font-size: 0.85rem;
  pointer-events: none;
}

.sainik-tracker-search-input {
  width: 100%;
  padding: 0.48rem 0.85rem 0.48rem 2.2rem;
  border-radius: var(--radius-full, 9999px);
  border: 1px solid var(--sainik-border, #cbd5e1);
  background: var(--sainik-bg-subtle, #f8fafc);
  font-size: 0.84rem;
  color: var(--sainik-text, #0f172a);
  outline: none;
  transition: border-color var(--transition-fast, 0.15s ease);
}

.sainik-tracker-search-input:focus {
  border-color: #881337;
  box-shadow: 0 0 0 3px rgba(136, 19, 55, 0.12);
}

.sainik-tracker-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.sainik-action-btn {
  padding: 0.45rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: var(--radius-md, 0.5rem);
  border: 1px solid var(--sainik-border, #cbd5e1);
  background: var(--sainik-bg-subtle, #f8fafc);
  color: var(--sainik-text-secondary, #475569);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast, 0.15s ease);
}

.sainik-action-btn:hover {
  background: #f1f5f9;
  color: var(--sainik-text, #0f172a);
}

/* Subject Dropdown Accordions */
details.tracker-subject-accordion {
  background: #ffffff;
  border: 1px solid var(--sainik-border, #e2e8f0);
  border-radius: var(--radius-lg, 0.75rem);
  margin-bottom: 1.15rem;
  overflow: hidden;
  transition: all 0.25s ease;
}

details.tracker-subject-accordion[open] {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
  border-color: rgba(136, 19, 55, 0.25);
}

summary.tracker-subject-summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--sainik-bg-subtle, #f8fafc);
  border-left: 5px solid #166534;
  user-select: none;
  transition: background 0.2s ease;
}

summary.tracker-subject-summary::-webkit-details-marker {
  display: none;
}

summary.tracker-subject-summary:hover {
  background: rgba(136, 19, 55, 0.03);
}

.tracker-summary-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.accordion-icon-wrap {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: var(--radius-md, 0.5rem);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.tracker-summary-left h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.subject-topic-badge {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full, 9999px);
  background: var(--sainik-bg-subtle, #f1f5f9);
  color: var(--sainik-text-secondary, #475569);
  border: 1px solid var(--sainik-border, #cbd5e1);
}

.subject-weightage-sub {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--sainik-text-secondary, #64748b);
  display: block;
  margin-top: 0.15rem;
}

.tracker-summary-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.subject-mini-progress {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.subject-mini-bar-track {
  width: 80px;
  height: 7px;
  background: var(--sainik-border, #cbd5e1);
  border-radius: var(--radius-full, 9999px);
  overflow: hidden;
}

.subject-mini-bar-fill {
  height: 100%;
  border-radius: var(--radius-full, 9999px);
  transition: width 0.35s ease;
}

.tracker-subject-progress-pill {
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full, 9999px);
  background: #ffffff;
  border: 1px solid var(--sainik-border, #cbd5e1);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--sainik-text, #0f172a);
  white-space: nowrap;
}

.accordion-chevron-pill {
  width: 1.9rem;
  height: 1.9rem;
  border-radius: var(--radius-full, 9999px);
  background: #ffffff;
  border: 1px solid var(--sainik-border, #cbd5e1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.accordion-chevron {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--sainik-text-secondary, #64748b);
  font-size: 0.8rem;
}

details.tracker-subject-accordion[open] summary .accordion-chevron {
  transform: rotate(180deg);
}

.tracker-accordion-body {
  padding: 1.15rem 1.25rem 1.35rem;
  border-top: 1px solid var(--sainik-border, #e2e8f0);
}

/* Topic Rows / Grid */
.tracker-topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 0.65rem;
}

.tracker-topic-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0.95rem;
  background: #ffffff;
  border: 1px solid var(--sainik-border, #e2e8f0);
  border-radius: var(--radius-md, 0.5rem);
  min-height: 56px;
  box-sizing: border-box;
  transition: all var(--transition-fast, 0.15s ease);
}

.tracker-topic-row:hover {
  border-color: rgba(136, 19, 55, 0.45);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transform: translateY(-1px);
}

.tracker-topic-row.completed {
  background: rgba(22, 101, 52, 0.06);
  border-color: rgba(22, 101, 52, 0.4);
}

.tracker-checkbox-wrap {
  display: flex;
  align-items: center;
  cursor: pointer;
}

.tracker-checkbox {
  width: 1.2rem;
  height: 1.2rem;
  accent-color: #166534;
  cursor: pointer;
}

.tracker-item-num {
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius-sm, 0.25rem);
  background: var(--sainik-bg-subtle, #f1f5f9);
  color: var(--sainik-text-secondary, #475569);
  white-space: nowrap;
}

.tracker-topic-name {
  flex: 1;
  font-size: 0.92rem;
  line-height: 1.35;
  min-width: 0;
}

.tracker-topic-name a {
  color: var(--sainik-text, #0f172a);
  font-weight: 700;
  text-decoration: none;
  transition: color var(--transition-fast, 0.15s ease);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tracker-topic-name a:hover {
  color: var(--sainik-primary, #881337);
}

.tracker-topic-row.completed .tracker-topic-name a {
  color: #166534;
}

.tracker-status-tag {
  display: none;
  font-size: 0.68rem;
  font-weight: 800;
  color: #166534;
  margin-top: 0.15rem;
}

.tracker-topic-row.completed .tracker-status-tag {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.tracker-link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm, 0.25rem);
  background: var(--sainik-bg-subtle, #f8fafc);
  border: 1px solid var(--sainik-border, #e2e8f0);
  color: var(--sainik-text-secondary, #64748b);
  text-decoration: none;
  font-size: 0.78rem;
  flex-shrink: 0;
  transition: all var(--transition-fast, 0.15s ease);
}

.tracker-link-btn:hover {
  background: var(--sainik-primary, #881337);
  color: #ffffff;
  border-color: var(--sainik-primary, #881337);
}

/* Dark Mode Overrides for Tracker Dropdowns & Topic Cards */
body.dark-mode details.tracker-subject-accordion,
:root[data-theme="dark"] details.tracker-subject-accordion {
  background: #1e293b !important;
  border-color: #334155 !important;
}

body.dark-mode summary.tracker-subject-summary,
:root[data-theme="dark"] summary.tracker-subject-summary {
  background: #0f172a !important;
}

body.dark-mode summary.tracker-subject-summary:hover,
:root[data-theme="dark"] summary.tracker-subject-summary:hover {
  background: #162032 !important;
}

body.dark-mode .tracker-summary-left h3,
:root[data-theme="dark"] .tracker-summary-left h3 {
  color: #f8fafc !important;
}

body.dark-mode .subject-weightage-sub,
:root[data-theme="dark"] .subject-weightage-sub {
  color: #94a3b8 !important;
}

body.dark-mode .subject-topic-badge,
:root[data-theme="dark"] .subject-topic-badge {
  background: #1e293b !important;
  border-color: #334155 !important;
  color: #cbd5e1 !important;
}

body.dark-mode .subject-mini-bar-track,
:root[data-theme="dark"] .subject-mini-bar-track {
  background: #334155 !important;
}

body.dark-mode .tracker-subject-progress-pill,
:root[data-theme="dark"] .tracker-subject-progress-pill {
  background: #1e293b !important;
  border-color: #334155 !important;
  color: #cbd5e1 !important;
}

body.dark-mode .accordion-chevron-pill,
:root[data-theme="dark"] .accordion-chevron-pill {
  background: #1e293b !important;
  border-color: #334155 !important;
}

body.dark-mode .tracker-accordion-body,
:root[data-theme="dark"] .tracker-accordion-body {
  border-top-color: #334155 !important;
  background: #131d2e !important;
}

body.dark-mode .tracker-topic-row,
:root[data-theme="dark"] .tracker-topic-row {
  background: #0f172a !important;
  border-color: #334155 !important;
}

body.dark-mode .tracker-topic-row:hover,
:root[data-theme="dark"] .tracker-topic-row:hover {
  border-color: #64748b !important;
  background: #1e293b !important;
}

body.dark-mode .tracker-topic-row.completed,
:root[data-theme="dark"] .tracker-topic-row.completed {
  background: rgba(22, 101, 52, 0.25) !important;
  border-color: rgba(34, 197, 94, 0.45) !important;
}

body.dark-mode .tracker-topic-row.completed .tracker-topic-name a,
:root[data-theme="dark"] .tracker-topic-row.completed .tracker-topic-name a {
  color: #86efac !important;
}

body.dark-mode .tracker-topic-name a,
:root[data-theme="dark"] .tracker-topic-name a {
  color: #f1f5f9 !important;
}

body.dark-mode .tracker-topic-name a:hover,
:root[data-theme="dark"] .tracker-topic-name a:hover {
  color: #fda4af !important;
}

body.dark-mode .tracker-status-tag,
:root[data-theme="dark"] .tracker-status-tag {
  color: #86efac !important;
}

body.dark-mode .tracker-item-num,
:root[data-theme="dark"] .tracker-item-num {
  background: #1e293b !important;
  color: #94a3b8 !important;
}

body.dark-mode .tracker-link-btn,
:root[data-theme="dark"] .tracker-link-btn {
  background: #1e293b !important;
  border-color: #334155 !important;
  color: #cbd5e1 !important;
}

body.dark-mode .tracker-link-btn:hover,
:root[data-theme="dark"] .tracker-link-btn:hover {
  background: #be123c !important;
  color: #ffffff !important;
  border-color: #be123c !important;
}

/* Dark Mode Overrides for Tracker */
body.dark-mode .sainik-tracker-card,
:root[data-theme="dark"] .sainik-tracker-card {
  background: #1e293b !important;
  border-color: #334155 !important;
}

body.dark-mode .sainik-tracker-title h2,
:root[data-theme="dark"] .sainik-tracker-title h2 {
  color: #f8fafc !important;
}

body.dark-mode .sainik-tracker-title p,
:root[data-theme="dark"] .sainik-tracker-title p {
  color: #cbd5e1 !important;
}

body.dark-mode .tracker-metric-box,
:root[data-theme="dark"] .tracker-metric-box {
  background: #0f172a !important;
  border-color: #334155 !important;
}

body.dark-mode .tracker-metric-label,
:root[data-theme="dark"] .tracker-metric-label {
  color: #94a3b8 !important;
}

body.dark-mode .sainik-progress-bar-wrap,
:root[data-theme="dark"] .sainik-progress-bar-wrap {
  background: #0f172a !important;
  border-color: #334155 !important;
}

body.dark-mode .sainik-filter-btn,
:root[data-theme="dark"] .sainik-filter-btn,
body.dark-mode .sainik-action-btn,
:root[data-theme="dark"] .sainik-action-btn {
  background: #0f172a !important;
  border-color: #334155 !important;
  color: #cbd5e1 !important;
}

body.dark-mode .sainik-filter-btn:hover,
:root[data-theme="dark"] .sainik-filter-btn:hover {
  background: rgba(136, 19, 55, 0.25) !important;
  color: #fda4af !important;
  border-color: #fda4af !important;
}

body.dark-mode .sainik-filter-btn.active,
:root[data-theme="dark"] .sainik-filter-btn.active {
  background: #be123c !important;
  color: #ffffff !important;
  border-color: #be123c !important;
}

body.dark-mode .sainik-tracker-search-input,
:root[data-theme="dark"] .sainik-tracker-search-input {
  background: #0f172a !important;
  border-color: #334155 !important;
  color: #f8fafc !important;
}

body.dark-mode .tracker-subject-header,
:root[data-theme="dark"] .tracker-subject-header {
  background: #0f172a !important;
  border-color: #334155 !important;
}

body.dark-mode .tracker-subject-header h3,
:root[data-theme="dark"] .tracker-subject-header h3 {
  color: #f8fafc !important;
}

body.dark-mode .tracker-subject-progress-pill,
:root[data-theme="dark"] .tracker-subject-progress-pill {
  background: #1e293b !important;
  border-color: #334155 !important;
  color: #cbd5e1 !important;
}

body.dark-mode .tracker-topic-row,
:root[data-theme="dark"] .tracker-topic-row {
  background: #0f172a !important;
  border-color: #334155 !important;
}

body.dark-mode .tracker-topic-row:hover,
:root[data-theme="dark"] .tracker-topic-row:hover {
  border-color: #94a3b8 !important;
  background: #1e293b !important;
}

body.dark-mode .tracker-topic-row.completed,
:root[data-theme="dark"] .tracker-topic-row.completed {
  background: rgba(22, 101, 52, 0.18) !important;
  border-color: rgba(34, 197, 94, 0.35) !important;
}

body.dark-mode .tracker-topic-name a,
:root[data-theme="dark"] .tracker-topic-name a {
  color: #f1f5f9 !important;
}

body.dark-mode .tracker-topic-name a:hover,
:root[data-theme="dark"] .tracker-topic-name a:hover {
  color: #fda4af !important;
}

body.dark-mode .tracker-item-num,
:root[data-theme="dark"] .tracker-item-num {
  background: #1e293b !important;
  color: #94a3b8 !important;
}

body.dark-mode .tracker-link-btn,
:root[data-theme="dark"] .tracker-link-btn {
  background: #1e293b !important;
  border-color: #334155 !important;
  color: #cbd5e1 !important;
}

body.dark-mode .tracker-link-btn:hover,
:root[data-theme="dark"] .tracker-link-btn:hover {
  background: #be123c !important;
  color: #ffffff !important;
  border-color: #be123c !important;
}

/* Topic Quick Study Modal / Drawer */
.sainik-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.sainik-modal-backdrop.active {
  display: flex;
}

.sainik-modal-dialog {
  background: #ffffff;
  border: 1px solid var(--sainik-border, #e2e8f0);
  border-radius: var(--radius-lg, 0.75rem);
  width: 100%;
  max-width: 640px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
  animation: modalFadeIn 0.22s ease-out;
  display: flex;
  flex-direction: column;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.sainik-modal-header {
  padding: 1.15rem 1.4rem;
  border-bottom: 1px solid var(--sainik-border, #e2e8f0);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--sainik-bg-subtle, #f8fafc);
  position: sticky;
  top: 0;
  z-index: 2;
}

.sainik-modal-header h3 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sainik-modal-close {
  background: transparent;
  border: none;
  color: #64748b;
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm, 0.375rem);
  transition: all 0.2s ease;
}

.sainik-modal-close:hover {
  background: #e2e8f0;
  color: #0f172a;
}

.sainik-modal-body {
  padding: 1.35rem 1.4rem;
  color: var(--sainik-text, #0f172a);
  line-height: 1.65;
  font-size: 0.94rem;
}

.sainik-modal-body h4 {
  margin: 1rem 0 0.4rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--sainik-primary, #881337);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.sainik-modal-body p {
  margin: 0 0 0.75rem;
}

.sainik-modal-footer {
  padding: 1rem 1.4rem;
  border-top: 1px solid var(--sainik-border, #e2e8f0);
  background: var(--sainik-bg-subtle, #f8fafc);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

body.dark-mode .sainik-modal-dialog,
:root[data-theme="dark"] .sainik-modal-dialog {
  background: #1e293b !important;
  border-color: #334155 !important;
  color: #f1f5f9 !important;
}

body.dark-mode .sainik-modal-header,
:root[data-theme="dark"] .sainik-modal-header,
body.dark-mode .sainik-modal-footer,
:root[data-theme="dark"] .sainik-modal-footer {
  background: #0f172a !important;
  border-color: #334155 !important;
}

body.dark-mode .sainik-modal-close,
:root[data-theme="dark"] .sainik-modal-close {
  color: #cbd5e1 !important;
}

body.dark-mode .sainik-modal-close:hover,
:root[data-theme="dark"] .sainik-modal-close:hover {
  background: #334155 !important;
  color: #ffffff !important;
}

body.dark-mode .sainik-modal-body h4,
:root[data-theme="dark"] .sainik-modal-body h4 {
  color: #fda4af !important;
}

/* ==========================================================================
   CADET EXAM PREP APP — INTERACTIVE COMPONENTS (v2.0)
   Scoreboard, Instant Drill Engine, 3D Flashcards, Timed Mock, Navigation
   ========================================================================== */

/* Cadet Preparation Status Bar */
.cadet-prep-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.cadet-badge-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn-cadet-prepared {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  background: rgba(22, 101, 52, 0.08);
  border: 1px solid rgba(22, 101, 52, 0.25);
  color: #166534;
  transition: all var(--transition-fast);
}

.btn-cadet-prepared:hover {
  background: rgba(22, 101, 52, 0.16);
  transform: translateY(-1px);
}

.btn-cadet-prepared.is-prepared {
  background: #166534 !important;
  color: #ffffff !important;
  border-color: #166534 !important;
  box-shadow: 0 2px 8px rgba(22, 101, 52, 0.3) !important;
}

body.dark-mode .btn-cadet-prepared,
:root[data-theme="dark"] .btn-cadet-prepared {
  background: rgba(52, 211, 153, 0.12) !important;
  border-color: rgba(52, 211, 153, 0.3) !important;
  color: #34d399 !important;
}

body.dark-mode .btn-cadet-prepared.is-prepared,
:root[data-theme="dark"] .btn-cadet-prepared.is-prepared {
  background: #059669 !important;
  color: #ffffff !important;
  border-color: #059669 !important;
  box-shadow: 0 2px 10px rgba(5, 150, 105, 0.4) !important;
}

/* Interactive Scoreboard Banner (Drills HUD) */
.sainik-scoreboard {
  background: var(--sainik-bg-card, #ffffff);
  border: 1px solid var(--sainik-border, #e2e8f0);
  border-radius: var(--radius-lg, 12px);
  padding: 1.15rem 1.35rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--sainik-shadow-sm);
}

.scoreboard-metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.85rem;
  text-align: center;
  margin-bottom: 0.85rem;
}

.scoreboard-metric-box {
  background: var(--sainik-bg-subtle, #f8fafc);
  border: 1px solid var(--sainik-border, #e2e8f0);
  border-radius: var(--radius-md, 8px);
  padding: 0.65rem 0.75rem;
}

.scoreboard-metric-val {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--sainik-primary);
  line-height: 1.2;
}

.scoreboard-metric-lbl {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--sainik-text-secondary);
  letter-spacing: 0.04em;
  margin-top: 0.25rem;
}

.scoreboard-progress-wrap {
  width: 100%;
  height: 8px;
  background: rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin: 0.5rem 0 0.4rem;
}

.scoreboard-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #10b981, #059669);
  border-radius: var(--radius-full);
  transition: width 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.scoreboard-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--sainik-text-muted);
}

.btn-reset-drills {
  background: none;
  border: none;
  color: var(--sainik-primary);
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.btn-reset-drills:hover {
  background: rgba(0, 0, 0, 0.05);
}

body.dark-mode .sainik-scoreboard,
:root[data-theme="dark"] .sainik-scoreboard {
  background: #182234 !important;
  border-color: #2e3e56 !important;
}

body.dark-mode .scoreboard-metric-box,
:root[data-theme="dark"] .scoreboard-metric-box {
  background: #131d2e !important;
  border-color: #243247 !important;
}

body.dark-mode .scoreboard-metric-val,
:root[data-theme="dark"] .scoreboard-metric-val {
  color: #fb7185 !important;
}

body.dark-mode .scoreboard-progress-wrap,
:root[data-theme="dark"] .scoreboard-progress-wrap {
  background: rgba(255, 255, 255, 0.1) !important;
}

body.dark-mode .scoreboard-progress-fill,
:root[data-theme="dark"] .scoreboard-progress-fill {
  background: linear-gradient(90deg, #34d399, #10b981) !important;
}

body.dark-mode .btn-reset-drills,
:root[data-theme="dark"] .btn-reset-drills {
  color: #fda4af !important;
}

/* Interactive Option Buttons in Drills */
.drill-options-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  margin: 1rem 0;
}

@media (min-width: 640px) {
  .drill-options-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.drill-opt-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--sainik-bg-subtle, #f8fafc);
  border: 1.5px solid var(--sainik-border, #e2e8f0);
  border-radius: var(--radius-md, 8px);
  font-family: inherit;
  font-size: 0.92rem;
  text-align: left;
  color: var(--sainik-text, #0f172a);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-sizing: border-box;
}

.drill-opt-btn:hover:not(:disabled) {
  border-color: var(--sainik-primary);
  background: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--sainik-shadow-xs);
}

.drill-opt-letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid var(--sainik-border, #e2e8f0);
  font-weight: 800;
  font-size: 0.82rem;
  color: var(--sainik-text-secondary);
  flex-shrink: 0;
}

.drill-opt-text {
  flex: 1;
  line-height: 1.4;
}

/* Answer State Classes */
.drill-opt-btn.is-correct {
  background: rgba(16, 185, 129, 0.12) !important;
  border-color: #10b981 !important;
  color: #065f46 !important;
  font-weight: 700;
}

.drill-opt-btn.is-correct .drill-opt-letter {
  background: #10b981 !important;
  color: #ffffff !important;
  border-color: #10b981 !important;
}

.drill-opt-btn.is-incorrect {
  background: rgba(244, 63, 94, 0.12) !important;
  border-color: #f43f5e !important;
  color: #9f1239 !important;
  font-weight: 700;
}

.drill-opt-btn.is-incorrect .drill-opt-letter {
  background: #f43f5e !important;
  color: #ffffff !important;
  border-color: #f43f5e !important;
}

body.dark-mode .drill-opt-btn,
:root[data-theme="dark"] .drill-opt-btn {
  background: #182234 !important;
  border-color: #2e3e56 !important;
  color: #f1f5f9 !important;
}

body.dark-mode .drill-opt-btn:hover:not(:disabled),
:root[data-theme="dark"] .drill-opt-btn:hover:not(:disabled) {
  border-color: #fb7185 !important;
  background: #1e293b !important;
}

body.dark-mode .drill-opt-letter,
:root[data-theme="dark"] .drill-opt-letter {
  background: #131d2e !important;
  border-color: #2e3e56 !important;
  color: #cbd5e1 !important;
}

body.dark-mode .drill-opt-btn.is-correct,
:root[data-theme="dark"] .drill-opt-btn.is-correct {
  background: rgba(16, 185, 129, 0.18) !important;
  border-color: #34d399 !important;
  color: #a7f3d0 !important;
}

body.dark-mode .drill-opt-btn.is-incorrect,
:root[data-theme="dark"] .drill-opt-btn.is-incorrect {
  background: rgba(244, 63, 94, 0.18) !important;
  border-color: #fb7185 !important;
  color: #fecdd3 !important;
}

/* Solution Box */
.drill-solution-box {
  margin-top: 1rem;
  padding: 1.15rem 1.25rem;
  background: rgba(22, 101, 52, 0.06);
  border-left: 4px solid #166534;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--sainik-text-secondary);
  animation: fadeIn 0.25s ease-out;
}

body.dark-mode .drill-solution-box,
:root[data-theme="dark"] .drill-solution-box {
  background: rgba(16, 185, 129, 0.08) !important;
  border-left-color: #34d399 !important;
  color: #cbd5e1 !important;
}

/* 3D Revision Flashcards Deck */
.sainik-flashcards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.sainik-flashcard-wrap {
  perspective: 1000px;
  min-height: 190px;
  cursor: pointer;
}

.sainik-flashcard-inner {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 190px;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.sainik-flashcard-wrap.flipped .sainik-flashcard-inner {
  transform: rotateY(180deg);
}

.sainik-flashcard-front,
.sainik-flashcard-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-lg, 12px);
  padding: 1.35rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-sizing: border-box;
  box-shadow: var(--sainik-shadow-sm);
  border: 1px solid var(--sainik-border, #e2e8f0);
}

.sainik-flashcard-front {
  background: var(--sainik-bg-card, #ffffff);
  border-top: 4px solid var(--sainik-primary);
}

.sainik-flashcard-back {
  background: var(--sainik-bg-subtle, #f8fafc);
  border-top: 4px solid var(--sainik-gold, #b45309);
  transform: rotateY(180deg);
}

.flashcard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--sainik-text-muted);
}

.flashcard-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--sainik-primary);
  margin: 0.5rem 0 0.35rem;
  line-height: 1.35;
}

.flashcard-footer {
  font-size: 0.78rem;
  color: var(--sainik-text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

body.dark-mode .sainik-flashcard-front,
:root[data-theme="dark"] .sainik-flashcard-front {
  background: #182234 !important;
  border-color: #2e3e56 !important;
  border-top-color: #fb7185 !important;
}

body.dark-mode .sainik-flashcard-back,
:root[data-theme="dark"] .sainik-flashcard-back {
  background: #131d2e !important;
  border-color: #243247 !important;
  border-top-color: #fbbf24 !important;
}

body.dark-mode .flashcard-title,
:root[data-theme="dark"] .flashcard-title {
  color: #f8fafc !important;
}

/* Timed Mini Mock Simulator */
.mock-test-container {
  background: var(--sainik-bg-card, #ffffff);
  border: 1px solid var(--sainik-border, #e2e8f0);
  border-radius: var(--radius-xl, 16px);
  padding: 1.75rem 2rem;
  margin: 1.5rem 0;
  box-shadow: var(--sainik-shadow-sm);
}

.mock-test-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-bottom: 1.15rem;
  border-bottom: 1px solid var(--sainik-border, #e2e8f0);
  margin-bottom: 1.25rem;
}

.mock-timer-clock {
  font-family: monospace, system-ui;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--sainik-primary);
  background: rgba(0, 0, 0, 0.04);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.mock-timer-clock.urgent {
  color: #ef4444 !important;
  background: rgba(239, 68, 68, 0.12) !important;
  animation: pulse 1s infinite;
}

.mock-palette-dots {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.mock-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1.5px solid var(--sainik-border);
  background: var(--sainik-bg-subtle);
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--sainik-text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.mock-dot.active {
  border-color: var(--sainik-primary);
  color: var(--sainik-primary);
  box-shadow: 0 0 0 2px var(--sainik-primary-soft);
}

.mock-dot.answered {
  background: #10b981;
  color: #ffffff;
  border-color: #10b981;
}

.mock-opt-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.85rem 1.15rem;
  background: var(--sainik-bg-subtle, #f8fafc);
  border: 1.5px solid var(--sainik-border, #e2e8f0);
  border-radius: var(--radius-md, 8px);
  font-family: inherit;
  font-size: 0.94rem;
  text-align: left;
  color: var(--sainik-text);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mock-opt-btn:hover {
  border-color: var(--sainik-primary);
  background: #ffffff;
}

.mock-opt-btn.selected {
  background: var(--sainik-primary-soft) !important;
  border-color: var(--sainik-primary) !important;
  color: var(--sainik-primary) !important;
  font-weight: 700;
}

.mock-opt-btn.selected .opt-letter {
  background: var(--sainik-primary);
  color: #ffffff;
  border-color: var(--sainik-primary);
}

.mock-review-item {
  background: var(--sainik-bg-subtle);
  border: 1px solid var(--sainik-border);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.35rem;
  margin: 1rem 0;
}

.mock-review-item.correct {
  border-left: 4px solid #10b981;
}

.mock-review-item.incorrect {
  border-left: 4px solid #ef4444;
}

.mock-review-item.skipped {
  border-left: 4px solid #94a3b8;
}

body.dark-mode .mock-test-container,
:root[data-theme="dark"] .mock-test-container {
  background: #182234 !important;
  border-color: #2e3e56 !important;
}

body.dark-mode .mock-timer-clock,
:root[data-theme="dark"] .mock-timer-clock {
  background: #131d2e !important;
  color: #fb7185 !important;
}

body.dark-mode .mock-dot,
:root[data-theme="dark"] .mock-dot {
  background: #131d2e !important;
  border-color: #2e3e56 !important;
  color: #cbd5e1 !important;
}

body.dark-mode .mock-dot.active,
:root[data-theme="dark"] .mock-dot.active {
  border-color: #fb7185 !important;
  color: #fb7185 !important;
}

body.dark-mode .mock-opt-btn,
:root[data-theme="dark"] .mock-opt-btn {
  background: #131d2e !important;
  border-color: #243247 !important;
  color: #f1f5f9 !important;
}

body.dark-mode .mock-opt-btn.selected,
:root[data-theme="dark"] .mock-opt-btn.selected {
  background: rgba(244, 63, 94, 0.15) !important;
  border-color: #fb7185 !important;
  color: #fecdd3 !important;
}

body.dark-mode .mock-review-item,
:root[data-theme="dark"] .mock-review-item {
  background: #131d2e !important;
  border-color: #243247 !important;
}

/* Cadet Marching Route (Bottom Prev/Next Nav) */
.cadet-bottom-nav {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 3rem 0 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--sainik-border, #e2e8f0);
}

@media (min-width: 640px) {
  .cadet-bottom-nav {
    grid-template-columns: 1fr auto 1fr;
  }
}

.cadet-nav-btn {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  background: var(--sainik-bg-card, #ffffff);
  border: 1px solid var(--sainik-border, #e2e8f0);
  border-radius: var(--radius-lg, 12px);
  text-decoration: none;
  color: var(--sainik-text);
  box-shadow: var(--sainik-shadow-xs);
  transition: all var(--transition-fast);
}

.cadet-nav-btn:hover {
  transform: translateY(-2px);
  border-color: var(--sainik-primary);
  box-shadow: var(--sainik-shadow-sm);
}

.cadet-nav-btn.next {
  justify-content: flex-end;
  text-align: right;
}

.cadet-nav-hub {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-lg, 12px);
  background: var(--sainik-bg-subtle, #f8fafc);
  border: 1px solid var(--sainik-border, #e2e8f0);
  color: var(--sainik-primary);
  font-weight: 700;
  font-size: 0.88rem;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.cadet-nav-hub:hover {
  background: var(--sainik-primary-soft);
  border-color: var(--sainik-primary);
}

.nav-sub {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--sainik-text-muted);
  display: block;
}

.nav-title {
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--sainik-text);
  display: block;
  line-height: 1.35;
}

body.dark-mode .cadet-bottom-nav,
:root[data-theme="dark"] .cadet-bottom-nav {
  border-top-color: #2e3e56 !important;
}

body.dark-mode .cadet-nav-btn,
:root[data-theme="dark"] .cadet-nav-btn {
  background: #182234 !important;
  border-color: #2e3e56 !important;
  color: #f1f5f9 !important;
}

body.dark-mode .cadet-nav-btn:hover,
:root[data-theme="dark"] .cadet-nav-btn:hover {
  border-color: #fb7185 !important;
}

body.dark-mode .cadet-nav-hub,
:root[data-theme="dark"] .cadet-nav-hub {
  background: #131d2e !important;
  border-color: #243247 !important;
  color: #fda4af !important;
}

body.dark-mode .nav-title,
:root[data-theme="dark"] .nav-title {
  color: #f1f5f9 !important;
}

/* ==========================================================================
   SAINIK SCHOOL TOPIC MODULE COMPONENTS & STYLES (NO INLINE CSS)
   ========================================================================== */

/* Header / Meta Bar */
.sainik-topic-meta-row {
  display: flex !important;
  gap: 0.5rem !important;
  flex-wrap: wrap !important;
  align-items: center !important;
}

.sainik-chip.chip-sm {
  font-size: 0.78rem !important;
}

.sainik-chip.chip-xs {
  font-size: 0.76rem !important;
}

.sainik-chip.mb-xs {
  margin-bottom: 0.35rem !important;
}

.sainik-topic-title {
  margin: 0.5rem 0 !important;
  color: var(--sainik-primary) !important;
  font-size: 1.65rem !important;
}

.sainik-topic-lead {
  margin: 0 !important;
  color: var(--sainik-text-secondary) !important;
  font-size: 0.95rem !important;
  line-height: 1.55 !important;
}

/* Syllabus & Checklist Table Columns */
.col-syllabus-item {
  width: 18% !important;
}

.col-prescribed-scope {
  width: 35% !important;
}

.col-checkpoint {
  width: 28% !important;
}

/* Theory Headings, Paragraphs & Blueprint */
.theory-subheading.section-heading {
  margin-top: 1.6rem !important;
  font-size: 1.12rem !important;
  border-bottom: 1px solid var(--sainik-border) !important;
  padding-bottom: 0.4rem !important;
}

.theory-subheading.mt-lg {
  margin-top: 1.8rem !important;
}

.theory-subheading.mt-xl {
  margin-top: 2rem !important;
}

.theory-subheading.mt-2xl {
  margin-top: 2.5rem !important;
}

.theory-para {
  margin: 0.65rem 0 !important;
  line-height: 1.65 !important;
}

.vector-blueprint-card {
  background: var(--sainik-bg-card) !important;
  border: 1px solid var(--sainik-border) !important;
  border-radius: var(--radius-lg) !important;
  padding: 1.5rem !important;
  margin: 1rem 0 !important;
  box-shadow: var(--sainik-shadow-sm) !important;
  text-align: center !important;
}

/* Tab Panels Visibility */
.sainik-tab-panel {
  display: none;
}

.sainik-tab-panel.active {
  display: block;
}

/* Strategy & Shortcut Cards */
.strategy-card {
  margin: 1rem 0 !important;
  padding: 1.15rem 1.35rem !important;
  background: var(--sainik-bg-subtle) !important;
  border-radius: var(--radius-md) !important;
  border-left: 4px solid var(--sainik-primary) !important;
}

.strategy-title {
  color: var(--sainik-primary) !important;
  font-size: 1.02rem !important;
  display: flex !important;
  align-items: center !important;
  gap: 0.5rem !important;
}

.strategy-desc {
  margin: 0.5rem 0 0 !important;
  font-size: 0.92rem !important;
  line-height: 1.6 !important;
  color: var(--sainik-text-secondary) !important;
}

/* Flashcards & Pitfalls */
.flashcards-intro {
  font-size: 0.9rem !important;
  color: var(--sainik-text-secondary) !important;
  margin-bottom: 1rem !important;
}

.text-gold {
  color: var(--sainik-gold) !important;
}

.text-emerald {
  color: #10b981 !important;
}

.text-amber {
  color: #b45309 !important;
}

.text-primary {
  color: var(--sainik-primary) !important;
}

.flashcard-body {
  font-size: 0.92rem !important;
  line-height: 1.55 !important;
  color: var(--sainik-text) !important;
  margin: 0.5rem 0 !important;
}

.pitfall-box {
  background: rgba(180, 83, 9, 0.06) !important;
  border: 1px solid rgba(180, 83, 9, 0.25) !important;
  border-radius: var(--radius-md) !important;
  padding: 1.2rem !important;
  margin: 1rem 0 !important;
}

.pitfall-text {
  margin: 0 !important;
  font-size: 0.92rem !important;
  line-height: 1.65 !important;
  color: var(--sainik-text-secondary) !important;
}

/* Formula Showcase */
.formula-title {
  font-weight: 700 !important;
  font-size: 0.86rem !important;
  color: var(--sainik-primary) !important;
  margin-bottom: 0.35rem !important;
}

.formula-math {
  font-size: 1.05rem !important;
  line-height: 1.5 !important;
}

.formula-desc {
  font-size: 0.84rem !important;
  color: var(--sainik-text-secondary) !important;
  margin-top: 0.35rem !important;
}

/* Solved Models */
.solved-model-card {
  background: var(--sainik-bg-card) !important;
  border: 1px solid var(--sainik-border) !important;
  border-radius: var(--radius-lg) !important;
  padding: 1.35rem !important;
  margin: 1.15rem 0 !important;
  box-shadow: var(--sainik-shadow-xs) !important;
}

.model-card-header {
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  margin-bottom: 0.6rem !important;
}

.model-question-text {
  font-weight: 700 !important;
  font-size: 0.95rem !important;
  color: var(--sainik-text) !important;
  margin-bottom: 0.5rem !important;
  line-height: 1.5 !important;
}

.model-options-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)) !important;
  gap: 0.5rem !important;
  margin: 0.75rem 0 !important;
}

.model-opt-item {
  padding: 0.5rem 0.75rem !important;
  background: var(--sainik-bg-subtle) !important;
  border: 1px solid var(--sainik-border) !important;
  border-radius: var(--radius-sm) !important;
  font-size: 0.86rem !important;
}

.model-opt-item.is-correct {
  background: rgba(22, 101, 52, 0.08) !important;
  border: 1px solid rgba(22, 101, 52, 0.3) !important;
}

.model-solution-box {
  background: var(--sainik-bg-subtle) !important;
  border-left: 3.5px solid var(--sainik-primary) !important;
  padding: 1rem 1.15rem !important;
  border-radius: var(--radius-sm) !important;
  font-size: 0.9rem !important;
  line-height: 1.68 !important;
}

.model-solution-title {
  color: var(--sainik-primary) !important;
  display: block !important;
  margin-bottom: 0.35rem !important;
}

/* Practice Drills */
.scoreboard-progress-fill {
  width: 0%;
}

.drill-card {
  background: var(--sainik-bg-card) !important;
  border: 1px solid var(--sainik-border) !important;
  border-radius: var(--radius-lg) !important;
  padding: 1.35rem 1.5rem !important;
  margin: 1.25rem 0 !important;
  box-shadow: var(--sainik-shadow-xs) !important;
}

.drill-card-header {
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  margin-bottom: 0.65rem !important;
}

.drill-question-text {
  font-weight: 700 !important;
  font-size: 0.98rem !important;
  color: var(--sainik-text) !important;
  margin-bottom: 1rem !important;
  line-height: 1.55 !important;
}

.drill-options-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)) !important;
  gap: 0.6rem !important;
  margin-bottom: 1rem !important;
}

.btn-solution-toggle {
  padding: 0.45rem 0.95rem !important;
  background: var(--sainik-bg-subtle) !important;
  border: 1px solid var(--sainik-border) !important;
  border-radius: var(--radius-sm) !important;
  font-size: 0.82rem !important;
  font-weight: 700 !important;
  color: var(--sainik-primary) !important;
  cursor: pointer !important;
}

.drill-solution-box {
  display: none;
  margin-top: 0.85rem !important;
  padding: 0.95rem 1.15rem !important;
  background: rgba(22, 101, 52, 0.06) !important;
  border: 1px solid rgba(22, 101, 52, 0.2) !important;
  border-radius: var(--radius-md) !important;
  font-size: 0.88rem !important;
  line-height: 1.65 !important;
  color: var(--sainik-text-secondary) !important;
}

.drill-solution-title {
  font-weight: 800 !important;
  color: var(--sainik-primary) !important;
  margin-bottom: 0.35rem !important;
}

/* Drill Celebration Banner */
.drill-completion-banner {
  display: none;
  background: var(--sainik-bg-card) !important;
  border: 2px solid #10b981 !important;
  border-radius: var(--radius-lg) !important;
  padding: 1.5rem !important;
  margin: 1.5rem 0 !important;
  align-items: center !important;
  gap: 1.25rem !important;
  box-shadow: var(--sainik-shadow-md) !important;
}

.drill-completion-banner.is-visible {
  display: flex !important;
}

.drill-banner-icon {
  font-size: 2.5rem !important;
  color: #10b981 !important;
}

.drill-banner-body {
  flex: 1 !important;
}

.drill-banner-title {
  margin: 0 0 0.35rem !important;
  color: var(--sainik-text) !important;
  font-size: 1.2rem !important;
}

.drill-banner-text {
  margin: 0 0 0.75rem !important;
  color: var(--sainik-text-secondary) !important;
  font-size: 0.92rem !important;
}

.drill-banner-score {
  color: var(--sainik-primary) !important;
}

.drill-banner-actions {
  display: flex !important;
  gap: 0.75rem !important;
  flex-wrap: wrap !important;
}

.drill-banner-btn {
  padding: 0.5rem 1.1rem !important;
  border-radius: var(--radius-md) !important;
  font-weight: 700 !important;
  font-size: 0.86rem !important;
  cursor: pointer !important;
}

.drill-banner-btn.btn-primary {
  background: var(--sainik-primary) !important;
  color: #fff !important;
  border: none !important;
}

.drill-banner-btn.btn-secondary {
  background: var(--sainik-bg-subtle) !important;
  color: var(--sainik-text) !important;
  border: 1px solid var(--sainik-border) !important;
}

/* Timed Mini Mock Simulator */
.mock-intro-title {
  margin: 0.35rem 0 0 !important;
  font-size: 1.2rem !important;
  color: var(--sainik-text) !important;
}

.mock-intro-subtitle {
  margin: 0.35rem 0 0 !important;
  font-size: 0.88rem !important;
  color: var(--sainik-text-secondary) !important;
}

.mock-features-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)) !important;
  gap: 0.75rem !important;
  margin: 1.25rem 0 !important;
}

.mock-feature-item {
  padding: 0.75rem 1rem !important;
  background: var(--sainik-bg-subtle) !important;
  border-radius: var(--radius-md) !important;
  font-size: 0.86rem !important;
  border-left: 3px solid var(--sainik-primary) !important;
}

.mock-feature-desc {
  font-size: 0.78rem !important;
  color: var(--sainik-text-secondary) !important;
}

.mock-start-wrapper {
  text-align: center !important;
  margin-top: 1.25rem !important;
}

.sainik-action-btn.start {
  padding: 0.7rem 1.75rem !important;
  background: var(--sainik-primary) !important;
  color: #ffffff !important;
  border: none !important;
  border-radius: var(--radius-md) !important;
  font-weight: 800 !important;
  font-size: 1rem !important;
  cursor: pointer !important;
  box-shadow: var(--sainik-shadow-sm) !important;
}

#mockPlayCard {
  display: none;
}

.mock-qnum-display {
  font-weight: 700 !important;
  font-size: 1rem !important;
  color: var(--sainik-text) !important;
}

.mock-palette-dots {
  margin-bottom: 1.25rem !important;
}

.mock-question-box {
  margin: 1rem 0 1.25rem !important;
}

.mock-qtext {
  font-weight: 700 !important;
  font-size: 1.02rem !important;
  color: var(--sainik-text) !important;
  line-height: 1.55 !important;
  margin-bottom: 1.15rem !important;
}

.mock-options-grid {
  display: grid !important;
  grid-template-columns: 1fr !important;
  gap: 0.65rem !important;
}

.mock-nav-row {
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  gap: 1rem !important;
  margin-top: 1.5rem !important;
  padding-top: 1rem !important;
  border-top: 1px solid var(--sainik-border) !important;
}

.sainik-action-btn.prev {
  padding: 0.55rem 1.15rem !important;
  background: var(--sainik-bg-subtle) !important;
  border: 1px solid var(--sainik-border) !important;
  border-radius: var(--radius-md) !important;
  font-weight: 700 !important;
  font-size: 0.88rem !important;
  cursor: pointer !important;
}

.sainik-action-btn.next {
  padding: 0.55rem 1.15rem !important;
  background: var(--sainik-primary) !important;
  color: #ffffff !important;
  border: none !important;
  border-radius: var(--radius-md) !important;
  font-weight: 700 !important;
  font-size: 0.88rem !important;
  cursor: pointer !important;
}

#mockResultCard {
  display: none;
}

.mock-result-header {
  text-align: center !important;
  padding: 1.5rem 0 !important;
  border-bottom: 1px solid var(--sainik-border) !important;
  margin-bottom: 1.5rem !important;
}

.mock-result-icon {
  font-size: 2.8rem !important;
  color: var(--sainik-gold) !important;
  margin-bottom: 0.5rem !important;
}

.mock-result-title {
  margin: 0 0 0.35rem !important;
  font-size: 1.35rem !important;
  color: var(--sainik-text) !important;
}

.mock-result-subtitle {
  margin: 0 0 1.25rem !important;
  font-size: 0.9rem !important;
  color: var(--sainik-text-secondary) !important;
}

.mock-result-metrics {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)) !important;
  gap: 0.75rem !important;
  max-width: 500px !important;
  margin: 0 auto !important;
}

.mock-metric-card {
  padding: 0.75rem !important;
  background: var(--sainik-bg-subtle) !important;
  border-radius: var(--radius-md) !important;
  border: 1px solid var(--sainik-border) !important;
}

.mock-metric-lbl {
  font-size: 0.74rem !important;
  font-weight: 700 !important;
  color: var(--sainik-text-secondary) !important;
  text-transform: uppercase !important;
}

.mock-metric-val {
  font-size: 1.25rem !important;
  font-weight: 800 !important;
  margin-top: 0.2rem !important;
}

.mock-metric-val.score {
  color: var(--sainik-primary) !important;
}

.mock-metric-val.accuracy {
  color: #10b981 !important;
}

.mock-metric-val.time {
  color: var(--sainik-text) !important;
}

.mock-review-area {
  display: flex !important;
  flex-direction: column !important;
  gap: 1rem !important;
}

.mock-retake-wrapper {
  text-align: center !important;
  margin-top: 1.5rem !important;
}

.sainik-action-btn.retake {
  padding: 0.65rem 1.5rem !important;
  background: var(--sainik-primary) !important;
  color: #ffffff !important;
  border: none !important;
  border-radius: var(--radius-md) !important;
  font-weight: 700 !important;
  font-size: 0.9rem !important;
  cursor: pointer !important;
}

.correct-ans-highlight {
  color: var(--sainik-primary) !important;
}

/* Cadet Bottom Navigation */
.cadet-nav-spacer {
  flex: 1 !important;
}

.cadet-nav-direction {
  display: block !important;
  font-size: 0.72rem !important;
  font-weight: 700 !important;
  text-transform: uppercase !important;
  color: var(--sainik-text-secondary) !important;
}

/* Dark Mode Topic Overrides */
body.dark-mode .pitfall-box,
:root[data-theme="dark"] .pitfall-box {
  background: rgba(180, 83, 9, 0.12) !important;
  border-color: rgba(180, 83, 9, 0.4) !important;
}

body.dark-mode .drill-solution-box,
:root[data-theme="dark"] .drill-solution-box {
  background: rgba(22, 101, 52, 0.14) !important;
  border-color: rgba(22, 101, 52, 0.45) !important;
}

body.dark-mode .model-opt-item.is-correct,
:root[data-theme="dark"] .model-opt-item.is-correct {
  background: rgba(22, 101, 52, 0.18) !important;
  border-color: rgba(22, 101, 52, 0.5) !important;
}
/* Pointwise Theory Lists & Cadet Retention Elements */
.pointwise-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 1.25rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.pointwise-list li {
  position: relative;
  padding-left: 1.65rem;
  line-height: 1.65;
  color: var(--sainik-text, #1e293b);
  font-size: 0.94rem;
}
.pointwise-list li::before {
  content: "\f058";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 0.15rem;
  color: var(--sainik-primary, #92400e);
  font-size: 0.95rem;
}
.mnemonic-box {
  background: linear-gradient(135deg, rgba(88, 28, 135, 0.05) 0%, rgba(146, 64, 14, 0.05) 100%);
  border: 1.5px dashed #7c3aed;
  border-radius: var(--radius-md, 8px);
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}
.mnemonic-header {
  font-weight: 800;
  color: #6d28d9;
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.45rem;
}
.mnemonic-body {
  font-size: 0.93rem;
  line-height: 1.6;
  color: var(--sainik-text, #1e293b);
}
.mnemonic-breakdown {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.mnemonic-breakdown li {
  padding-left: 1.2rem;
  position: relative;
  font-size: 0.9rem;
}
.mnemonic-breakdown li::before {
  content: "➔";
  position: absolute;
  left: 0;
  color: #7c3aed;
  font-weight: 700;
}
.trick-body {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--sainik-text, #1e293b);
}
:root[data-theme="dark"] .pointwise-list li,
body.dark-mode .pointwise-list li {
  color: #e2e8f0;
}
:root[data-theme="dark"] .mnemonic-box,
body.dark-mode .mnemonic-box {
  background: rgba(124, 58, 237, 0.08);
  border-color: #8b5cf6;
}
:root[data-theme="dark"] .mnemonic-header,
body.dark-mode .mnemonic-header {
  color: #c4b5fd;
}
:root[data-theme="dark"] .mnemonic-body,
body.dark-mode .mnemonic-body {
  color: #e2e8f0;
}
:root[data-theme="dark"] .mnemonic-breakdown li::before,
body.dark-mode .mnemonic-breakdown li::before {
  color: #a78bfa;
}
:root[data-theme="dark"] .trick-body,
body.dark-mode .trick-body {
  color: #e2e8f0;
}