/* ============================================================
   SUSHRUTHA HERITAGE DESIGN SYSTEM
   Based on DESIGN.md — "Clinical Calm" aesthetic
   Primary: Deep Institutional Blue
   Secondary: Herbal Green
   Tertiary: Turmeric Gold
   ============================================================ */

/* Google Fonts — Newsreader (serif headings) + Inter (body/UI) */
@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,wght@0,400;0,500;0,600;0,700;1,400;1,600&family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ============================================================
   CSS Custom Properties — Exact DESIGN.md tokens
   ============================================================ */
:root {
  /* ── Surface Tokens ── */
  --surface:                  #f8f9fa;
  --surface-dim:              #d9dadb;
  --surface-bright:           #f8f9fa;
  --surface-lowest:           #ffffff;
  --surface-low:              #f3f4f5;
  --surface-container:        #edeeef;
  --surface-high:             #e7e8e9;
  --surface-highest:          #e1e3e4;
  --surface-variant:          #e1e3e4;
  --on-surface:               #191c1d;
  --on-surface-variant:       #44474f;
  --inverse-surface:          #2e3132;
  --inverse-on-surface:       #f0f1f2;
  --outline:                  #747781;
  --outline-variant:          #c4c6d1;
  --surface-tint:             #435d95;
  --background:               #f8f9fa;
  --on-background:            #191c1d;

  /* ── Primary — Deep Institutional Blue ── */
  --primary:                  #001840;
  --on-primary:               #ffffff;
  --primary-container:        #0c2d62;
  --on-primary-container:     #7c96d1;
  --inverse-primary:          #afc6ff;
  --primary-fixed:            #d8e2ff;
  --primary-fixed-dim:        #afc6ff;
  --on-primary-fixed:         #001a43;
  --on-primary-fixed-variant: #2a457b;

  /* ── Secondary — Herbal Green ── */
  --secondary:                #3f6653;
  --on-secondary:             #ffffff;
  --secondary-container:      #beead1;
  --on-secondary-container:   #436b58;
  --secondary-fixed:          #c1ecd4;
  --secondary-fixed-dim:      #a5d0b9;
  --on-secondary-fixed:       #002114;
  --on-secondary-fixed-variant: #274e3d;

  /* ── Tertiary — Turmeric Gold ── */
  --tertiary:                 #755b00;
  --on-tertiary:              #ffffff;
  --tertiary-container:       #d3a500;
  --on-tertiary-container:    #503d00;
  --tertiary-fixed:           #ffdf92;
  --tertiary-fixed-dim:       #f4c004;
  --on-tertiary-fixed:        #241a00;
  --on-tertiary-fixed-variant:#594400;

  /* ── Error ── */
  --error:                    #ba1a1a;
  --on-error:                 #ffffff;
  --error-container:          #ffdad6;
  --on-error-container:       #93000a;

  /* ── Semantic aliases (used throughout components) ── */
  --color-bg:        var(--background);
  --color-text:      var(--on-surface);
  --color-text-sub:  var(--on-surface-variant);
  --color-border:    var(--outline-variant);
  --color-card:      var(--surface-lowest);

  /* ── Typography ── */
  --font-serif:  'Newsreader', 'Georgia', 'Times New Roman', serif;
  --font-sans:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Type scale (DESIGN.md) */
  --text-xl:     48px;    /* headline-xl */
  --text-lg:     36px;    /* headline-lg */
  --text-md:     28px;    /* headline-md */
  --text-body-lg:18px;    /* body-lg */
  --text-body:   16px;    /* body-md */
  --text-label:  14px;    /* label-md */
  --text-caption:12px;    /* caption */

  /* ── Spacing (8px base unit) ── */
  --unit:          8px;
  --space-1:       8px;
  --space-2:       16px;
  --space-3:       24px;
  --space-4:       32px;
  --space-5:       40px;
  --space-6:       48px;
  --space-8:       64px;
  --space-10:      80px;
  --section-gap:   80px;
  --gutter:        24px;
  --container-max: 1280px;

  /* ── Border radius ── */
  --radius-sm:   4px;     /* 0.25rem */
  --radius:      8px;     /* 0.5rem  DEFAULT */
  --radius-md:   12px;    /* 0.75rem */
  --radius-lg:   16px;    /* 1rem    */
  --radius-xl:   24px;    /* 1.5rem  */
  --radius-full: 9999px;

  /* ── Elevation — soft, blue-tinted, diffuse (DESIGN.md) ── */
  --shadow-sm:   0 1px 3px rgba(0,24,64,0.05), 0 1px 2px rgba(0,24,64,0.04);
  --shadow-md:   0 4px 20px rgba(0,24,64,0.07), 0 2px 8px rgba(0,24,64,0.05);
  --shadow-lg:   0 20px 48px rgba(0,24,64,0.08), 0 8px 24px rgba(0,24,64,0.06);
  --shadow-cta:  0 8px 30px rgba(12,45,98,0.25);
  --shadow-teal: 0 4px 14px rgba(13,148,136,0.3);

  /* ── Motion ── */
  --transition:  0.25s ease;
  --transition-md: 0.35s cubic-bezier(0.4, 0, 0.2, 1);

  /* ── Legacy aliases (used in inline styles across pages) ── */
  --white:         #ffffff;
  --off-white:     #f5f6f7;
  --light-gray:    #d1d5db;
  --mid-gray:      #6b7280;
  --dark-gray:     #374151;
  --navy:          var(--primary);
  --teal:          #0d9488;
  --teal-light:    #5eead4;
  --gold:          var(--tertiary-container);
  --grad-primary:  linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 60%, #1b4332 100%);
  --grad-teal:     linear-gradient(135deg, #0d9488 0%, #065f56 100%);
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--secondary); }

ul { list-style: none; }

/* ============================================================
   Typography — Newsreader headings, Inter body
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--primary);
  line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.2; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); line-height: 1.3; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); line-height: 1.3; font-weight: 600; }
h4 { font-size: 1.2rem; font-weight: 600; }
h5 { font-size: 1rem; font-weight: 600; font-family: var(--font-sans); letter-spacing: 0.02em; }
h6 { font-size: 0.875rem; font-weight: 700; font-family: var(--font-sans); text-transform: uppercase; letter-spacing: 0.06em; }

p {
  color: var(--on-surface-variant);
  font-size: var(--text-body-lg);
  line-height: 1.6;
  margin-bottom: 1rem;
}
p:last-child { margin-bottom: 0; }

/* ── Section tag (small uppercase label above headings) ── */
.section-tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--text-label);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--secondary);
  background: var(--secondary-fixed);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-2);
  border: 1px solid var(--secondary-fixed-dim);
}

/* ── Divider ── */
.divider {
  width: 48px;
  height: 3px;
  background: var(--tertiary-container);
  border-radius: var(--radius-full);
  margin: var(--space-2) auto var(--space-3);
}

/* ============================================================
   Layout — Container & Grid
   ============================================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.container-sm {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: var(--section-gap) 0;
}

.section-sm {
  padding: var(--space-8) 0;
}

.section-alt {
  background: var(--surface-low);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-8);
}

.section-header h2 { margin-bottom: var(--space-2); }

/* ============================================================
   Navbar
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all var(--transition-md);
  padding: 0;
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 72px;
}

/* Navbar always solid — visible on all backgrounds */
.navbar:not(.scrolled) {
  background: var(--surface-lowest);
  border-bottom: 1px solid var(--outline-variant);
  box-shadow: var(--shadow-sm);
}
.navbar:not(.scrolled) .nav-link { color: var(--on-surface); }
.navbar:not(.scrolled) .nav-link:hover { color: var(--primary-container); }
.navbar:not(.scrolled) .navbar-brand-name { color: var(--primary); }
.navbar:not(.scrolled) .navbar-brand-sub { color: var(--on-surface-variant); }
.navbar:not(.scrolled) .nav-toggle span { background: var(--primary); }

/* Scrolled state — white, elevated */
.navbar.scrolled {
  background: var(--surface-lowest);
  border-bottom: 1px solid var(--outline-variant);
  box-shadow: var(--shadow-md);
}
.navbar.scrolled .nav-link { color: var(--on-surface); }
.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active { color: var(--primary-container); }

/* Brand */
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}
.navbar-logo {
  height: 48px;
  width: auto;
  border-radius: 4px;
  background: var(--surface-lowest);
  padding: 2px;
}
.navbar-brand-text { display: none; }

/* Nav links */
.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: var(--radius);
  transition: all var(--transition);
  color: var(--on-surface);
  letter-spacing: 0.01em;
}
.nav-link:hover { background: var(--surface-low); color: var(--primary-container); }
.nav-link.active { color: var(--primary-container); font-weight: 600; }

/* CTA nav button */
.nav-link.nav-cta {
  background: var(--primary-container);
  color: var(--on-primary) !important;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.nav-link.nav-cta:hover {
  background: var(--primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-cta);
}

/* Dropdown */
.nav-item { position: relative; }
.has-dropdown .dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--surface-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 220px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-md);
  z-index: 100;
}
.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-item {
  display: block;
  padding: 10px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-surface);
  border-radius: var(--radius);
  transition: all var(--transition);
}
.dropdown-item:hover {
  background: var(--surface-low);
  color: var(--primary-container);
  padding-left: 20px;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ============================================================
   Page Hero (inner pages)
   ============================================================ */
.page-hero {
  position: relative;
  height: 420px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  margin-top: 72px;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
}
.page-hero:hover .page-hero-bg { transform: scale(1.02); }
.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0,24,64,0.88) 0%,
    rgba(0,24,64,0.60) 50%,
    rgba(0,24,64,0.30) 100%
  );
}
.page-hero-content {
  position: relative;
  z-index: 2;
  padding-bottom: var(--space-6);
}
.page-hero-content h1 {
  color: #fff;
  font-family: var(--font-serif);
  text-shadow: 0 2px 12px rgba(0,0,0,0.3);
  margin-bottom: var(--space-1);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: var(--space-1);
  font-family: var(--font-sans);
}
.breadcrumb a { color: rgba(255,255,255,0.75); }
.breadcrumb a:hover { color: var(--tertiary-fixed); }
.breadcrumb .current { color: var(--tertiary-fixed); font-weight: 600; }

/* ============================================================
   Buttons — DESIGN.md spec
   Primary = solid Blue (#0C2D62), Secondary = Herbal Green, CTA = ghost Gold border
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius);  /* 0.5rem — professional, not full-pill */
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-md);
  text-decoration: none;
  line-height: 1;
  letter-spacing: 0.01em;
}

/* Primary button — solid Blue */
.btn-primary {
  background: var(--primary-container);
  color: var(--on-primary);
  border-color: var(--primary-container);
}
.btn-primary:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-cta);
}

/* Secondary button — Herbal Green */
.btn-secondary {
  background: var(--secondary);
  color: var(--on-secondary);
  border-color: var(--secondary);
}
.btn-secondary:hover {
  background: #2d4f3e;
  border-color: #2d4f3e;
  color: #fff;
  transform: translateY(-2px);
}

/* CTA button — ghost with Turmeric Gold border */
.btn-cta {
  background: transparent;
  color: var(--tertiary-container);
  border-color: var(--tertiary-container);
}
.btn-cta:hover {
  background: var(--tertiary-container);
  color: var(--on-tertiary-container);
  transform: translateY(-2px);
}

/* White button (on dark backgrounds) */
.btn-white {
  background: var(--surface-lowest);
  color: var(--primary-container);
  border-color: var(--surface-lowest);
}
.btn-white:hover {
  background: var(--primary-fixed);
  border-color: var(--primary-fixed);
  transform: translateY(-2px);
  box-shadow: var(--shadow-cta);
}

/* Ghost outline */
.btn-outline {
  background: transparent;
  color: rgba(255,255,255,0.85);
  border-color: rgba(255,255,255,0.4);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border-color: rgba(255,255,255,0.7);
}

/* Navy button */
.btn-navy {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-navy:hover { background: var(--primary-container); border-color: var(--primary-container); transform: translateY(-2px); }

/* Sizes */
.btn-sm  { padding: 8px 16px; font-size: 0.8rem; }
.btn-lg  { padding: 16px 32px; font-size: 1rem; }

/* ============================================================
   Hero — Homepage
   ============================================================ */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.hero-slide.active { opacity: 1; }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(0,24,64,0.90) 0%,
    rgba(0,24,64,0.70) 50%,
    rgba(63,102,83,0.50) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 80px var(--gutter) 60px;
}

.hero-content h1 {
  color: #fff;
  text-shadow: 0 2px 16px rgba(0,0,0,0.25);
}

.hero-content p {
  color: rgba(255,255,255,0.85);
  max-width: 600px;
  font-size: 1.05rem;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(243,192,4,0.18);
  border: 1px solid rgba(243,192,4,0.4);
  color: var(--tertiary-fixed);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 600;
  color: #fff;
  line-height: 1.15;
  margin-bottom: var(--space-3);
  max-width: 760px;
  text-shadow: 0 2px 16px rgba(0,0,0,0.25);
}

.hero-title .highlight {
  color: var(--tertiary-fixed-dim);
  font-style: italic;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.80);
  max-width: 520px;
  margin-bottom: var(--space-5);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}

/* Hero stats strip */
.hero-stats {
  display: flex;
  gap: var(--space-5);
  flex-wrap: wrap;
}
.hero-stat { color: rgba(255,255,255,0.9); }
.hero-stat-num {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--tertiary-fixed-dim);
  line-height: 1;
}
.hero-stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

/* Hero dots */
.hero-dots {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}
.hero-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.35);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  padding: 0;
}
.hero-dot.active {
  width: 28px;
  background: var(--tertiary-fixed-dim);
}

/* ============================================================
   News Ticker / Announcement Bar
   ============================================================ */
.ticker-bar {
  background: var(--primary);
  color: rgba(255,255,255,0.9);
  padding: 0;
  overflow: hidden;
  height: 42px;
  display: flex;
  align-items: center;
}
.ticker-label {
  background: var(--tertiary-container);
  color: var(--on-tertiary-container);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0 16px;
  height: 100%;
  display: flex;
  align-items: center;
  white-space: nowrap;
  flex-shrink: 0;
}
.ticker-track {
  overflow: hidden;
  flex: 1;
  height: 100%;
  display: flex;
  align-items: center;
}
.ticker-inner {
  display: flex;
  gap: 48px;
  white-space: nowrap;
  animation: tickerScroll 32s linear infinite;
  font-size: 0.82rem;
  font-weight: 500;
}
.ticker-inner span::before { content: '◆ '; color: var(--tertiary-fixed-dim); font-size: 0.6em; }
@keyframes tickerScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============================================================
   Stats Counter Strip
   ============================================================ */
.stats-strip {
  background: var(--primary-container);
  padding: var(--space-6) 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.1);
}
.stat-item {
  text-align: center;
  padding: var(--space-4) var(--space-3);
  background: var(--primary-container);
  transition: background var(--transition);
}
.stat-item:hover { background: var(--primary); }
.stat-number {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--tertiary-fixed-dim);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
}

/* ============================================================
   Cards — "top-heavy: photo → Newsreader heading → Inter body"
   ============================================================ */
.course-card {
  background: var(--surface-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-md);
  display: flex;
  flex-direction: column;
}
.course-card:hover {
  border-color: rgba(12,45,98,0.2);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.course-card-img {
  position: relative;
  height: 220px;
  overflow: hidden;
}
.course-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  transition: transform 0.5s ease;
}
.course-card:hover .course-card-img img { transform: scale(1.04); }
.course-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--tertiary-container);
  color: var(--on-tertiary-container);
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}
.course-card-body {
  padding: var(--space-3);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.course-card-body h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: var(--space-1);
}
.course-card-body p {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  line-height: 1.55;
  flex: 1;
  margin-bottom: var(--space-2);
}
.course-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--space-2);
}
.course-meta-item {
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--surface-low);
  color: var(--on-surface-variant);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--outline-variant);
}

/* Courses grid */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-3);
}

/* ============================================================
   Feature Cards
   ============================================================ */
.feature-card {
  background: var(--surface-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: all var(--transition-md);
}
.feature-card:hover {
  border-color: rgba(12,45,98,0.15);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.feature-icon {
  font-size: 2rem;
  margin-bottom: var(--space-2);
  display: block;
}
.feature-card h4 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--on-surface-variant);
  line-height: 1.55;
  margin: 0;
}

/* ============================================================
   Gallery
   ============================================================ */
.gallery-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: var(--space-5);
}
.filter-btn {
  padding: 8px 20px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--outline-variant);
  background: var(--surface-lowest);
  color: var(--on-surface-variant);
  font-family: var(--font-sans);
  font-size: 0.825rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--primary-container);
  border-color: var(--primary-container);
  color: #fff;
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  background: var(--surface-high);
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  transition: transform 0.45s ease;
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,24,64,0.7) 0%, transparent 50%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-md);
}
.gallery-item:hover .gallery-item-overlay { opacity: 1; }
.zoom-icon { font-size: 1.5rem; filter: drop-shadow(0 2px 4px rgba(0,0,0,0.4)); }

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
}
.lightbox.open { display: flex; }
.lightbox-img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius-lg);
  box-shadow: 0 0 80px rgba(0,0,0,0.6);
  object-fit: contain;
}
.lightbox-close, .lightbox-prev, .lightbox-next {
  position: absolute;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 1.25rem;
  padding: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  transition: all var(--transition);
}
.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover {
  background: var(--primary-container);
  border-color: var(--primary-container);
}
.lightbox-close { top: 20px; right: 20px; font-size: 1rem; }
.lightbox-prev { left: 20px; top: 50%; transform: translateY(-50%); font-size: 1.5rem; }
.lightbox-next { right: 20px; top: 50%; transform: translateY(-50%); font-size: 1.5rem; }

/* ============================================================
   Content Split (2-col: text | image)
   ============================================================ */
.content-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}
.content-img-wrap {
  position: relative;
}
.content-img-wrap img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}
.content-img-badge {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--surface-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-md);
}
.badge-icon { font-size: 1.5rem; }
.badge-text-main { font-family: var(--font-serif); font-weight: 600; font-size: 1rem; color: var(--primary); }
.badge-text-sub { font-size: 0.72rem; color: var(--on-surface-variant); letter-spacing: 0.04em; }

/* ============================================================
   CTA Banner
   ============================================================ */
.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
  padding: var(--space-10) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.cta-banner h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  color: #fff;
  margin-bottom: var(--space-2);
}
.cta-banner p {
  color: rgba(255,255,255,0.75);
  font-size: 1rem;
  max-width: 520px;
  margin: 0 auto var(--space-4);
}

/* ============================================================
   Principal / Testimonial
   ============================================================ */
.principal-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 60%, #1b4332 100%);
  padding: var(--space-10) 0;
}
.principal-inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-6);
  align-items: center;
}
.principal-photo-wrap {
  position: relative;
}
.principal-photo {
  width: 240px;
  height: 300px;
  object-fit: cover;
  object-position: top;
  border-radius: var(--radius-xl);
  border: 4px solid rgba(255,255,255,0.2);
  box-shadow: var(--shadow-lg);
}
.principal-text blockquote {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-style: italic;
  color: rgba(255,255,255,0.88);
  line-height: 1.8;
  margin-bottom: var(--space-3);
}
.principal-name {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--tertiary-fixed);
  font-size: 1rem;
  letter-spacing: 0.02em;
}
.principal-title {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 4px;
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}
.testimonial-card {
  background: var(--surface-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}
.testimonial-quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--on-surface);
  line-height: 1.65;
  margin-bottom: var(--space-3);
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--primary-fixed);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  border-radius: var(--radius-full);
  overflow: hidden;
  flex-shrink: 0;
}
.testimonial-name {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--on-surface);
}
.testimonial-role {
  font-size: 0.75rem;
  color: var(--on-surface-variant);
}

/* ============================================================
   Faculty Grid
   ============================================================ */
.faculty-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-3);
}
.faculty-card {
  background: var(--surface-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-align: center;
  transition: all var(--transition-md);
}
.faculty-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(12,45,98,0.2);
}
.faculty-card-img { height: 200px; overflow: hidden; }
.faculty-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  transition: transform 0.4s ease;
}
.faculty-card:hover .faculty-card-img img { transform: scale(1.05); }
.faculty-card-body { padding: var(--space-2); }
.faculty-card-body h4 { font-size: 0.95rem; color: var(--primary); margin-bottom: 4px; }
.faculty-card-body .designation { font-size: 0.78rem; font-weight: 600; color: var(--secondary); }
.faculty-card-body .dept { font-size: 0.72rem; color: var(--on-surface-variant); margin-top: 2px; }

/* ============================================================
   Admission — Steps
   ============================================================ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-3);
}
.step-card {
  background: var(--surface-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-3);
  text-align: center;
  position: relative;
  transition: all var(--transition-md);
}
.step-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.step-number {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 28px;
  background: var(--primary-container);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
}
.step-card h4 {
  font-size: 0.95rem;
  color: var(--primary);
  margin-bottom: 8px;
  margin-top: var(--space-1);
}
.step-card p { font-size: 0.85rem; margin: 0; }

/* ============================================================
   Tables — Eligibility / Comparison
   ============================================================ */
.eligibility-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--outline-variant);
}
.eligibility-table th {
  background: var(--primary);
  color: #fff;
  padding: 14px 20px;
  text-align: left;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.eligibility-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--outline-variant);
  font-size: 0.875rem;
  color: var(--on-surface);
}
.eligibility-table tr:last-child td { border-bottom: none; }
.eligibility-table tr:nth-child(even) td { background: var(--surface-low); }
.eligibility-table td:first-child { font-weight: 600; color: var(--primary-container); }

/* ============================================================
   Forms — Input Fields
   ============================================================ */
.form-group { margin-bottom: var(--space-3); }
.form-label {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--text-label);
  font-weight: 600;
  color: var(--on-surface-variant);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.form-control {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: var(--text-body);
  color: var(--on-surface);
  background: var(--surface-lowest);
  border: 1.5px solid var(--outline-variant);
  border-radius: var(--radius);
  transition: all var(--transition);
  outline: none;
  -webkit-appearance: none;
}
.form-control::placeholder { color: var(--outline); }
/* Focus: 2px Turmeric Gold bottom border (DESIGN.md) */
.form-control:focus {
  border-color: var(--outline-variant);
  border-bottom-color: var(--tertiary-container);
  border-bottom-width: 2px;
  box-shadow: 0 1px 0 0 var(--tertiary-container);
  background: var(--surface-lowest);
}
textarea.form-control { min-height: 130px; resize: vertical; }
select.form-control { cursor: pointer; }

/* ============================================================
   Contact
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-6);
  align-items: start;
}
.contact-info-card {
  background: linear-gradient(160deg, var(--primary) 0%, var(--primary-container) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  color: rgba(255,255,255,0.85);
}
.contact-icon {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.contact-info-item {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  margin-bottom: var(--space-3);
}
.contact-info-label {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--tertiary-fixed-dim);
  margin-bottom: 4px;
}
.contact-info-value {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.6;
  margin: 0;
}
.social-links { display: flex; gap: 8px; }
.social-link {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 0.8rem;
  font-weight: 700;
  transition: all var(--transition);
  text-decoration: none;
}
.social-link:hover { background: rgba(255,255,255,0.2); color: #fff; border-color: rgba(255,255,255,0.4); }

/* Map */
.map-container {
  border-radius: var(--radius-xl);
  overflow: hidden;
  height: 380px;
  border: 1px solid var(--outline-variant);
  box-shadow: var(--shadow-md);
}
.map-container iframe { width: 100%; height: 100%; border: none; }

/* ============================================================
   Footer
   ============================================================ */
.footer {
  background: var(--inverse-surface);
  color: var(--inverse-on-surface);
  padding: var(--space-10) 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-5);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand-text {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--inverse-on-surface);
  margin-bottom: var(--space-2);
}
.footer-brand-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.6;
  margin: 0 0 var(--space-3);
}
.footer h5 {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tertiary-fixed-dim);
  margin-bottom: var(--space-2);
}
.footer-links li { margin-bottom: 8px; }
.footer-links a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  transition: all var(--transition);
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
}
.footer-contact-icon { flex-shrink: 0; margin-top: 1px; font-size: 0.9rem; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: rgba(255,255,255,0.7); }

/* ============================================================
   Chips / Badges (DESIGN.md: high-contrast, Turmeric Gold + Black)
   ============================================================ */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--tertiary-container);
  color: var(--on-tertiary-container);
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}
.chip-secondary {
  background: var(--secondary-container);
  color: var(--on-secondary-container);
}
.chip-primary {
  background: var(--primary-fixed);
  color: var(--on-primary-fixed);
}

/* ============================================================
   Info Boxes
   ============================================================ */
.info-box {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  line-height: 1.55;
  margin-bottom: var(--space-2);
}
.info-box.info {
  background: var(--primary-fixed);
  color: var(--on-primary-fixed);
  border-left: 4px solid var(--primary-container);
}
.info-box.warning {
  background: var(--tertiary-fixed);
  color: var(--on-tertiary-fixed);
  border-left: 4px solid var(--tertiary-container);
}
.info-box.success {
  background: var(--secondary-fixed);
  color: var(--on-secondary-fixed);
  border-left: 4px solid var(--secondary);
}

/* ============================================================
   Check list
   ============================================================ */
.check-list { list-style: none; }
.check-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--on-surface-variant);
  line-height: 1.5;
}
.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--secondary);
  font-weight: 700;
}

/* ============================================================
   Accreditations strip
   ============================================================ */
.accred-strip {
  background: var(--surface-low);
  border-top: 1px solid var(--outline-variant);
  border-bottom: 1px solid var(--outline-variant);
  padding: var(--space-4) 0;
}
.accred-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.accred-item {
  text-align: center;
  opacity: 0.6;
  transition: opacity var(--transition);
}
.accred-item:hover { opacity: 1; }
.accred-item-label {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  margin-top: 4px;
}

/* ============================================================
   Scroll animations
   ============================================================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}
.animate-delay-1 { transition-delay: 0.1s; }
.animate-delay-2 { transition-delay: 0.2s; }
.animate-delay-3 { transition-delay: 0.3s; }
.animate-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .testimonials-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .content-split { grid-template-columns: 1fr; gap: var(--space-4); }
  .content-img-wrap img { height: 340px; }
  .content-img-badge { bottom: 20px; left: 20px; }
  .principal-inner { grid-template-columns: 1fr; text-align: center; }
  .principal-photo { margin: 0 auto; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --section-gap: 56px; }

  .navbar-nav { display: none; flex-direction: column; align-items: stretch; position: fixed; top: 72px; left: 0; right: 0; background: var(--surface-lowest); padding: var(--space-2) var(--space-2) var(--space-3); border-bottom: 1px solid var(--outline-variant); box-shadow: var(--shadow-lg); gap: 2px; }
  .navbar-nav.open { display: flex; }
  .nav-toggle { display: flex; }
  .has-dropdown .dropdown-menu { position: static; box-shadow: none; border: none; background: var(--surface-low); border-radius: var(--radius); padding: 4px 0 4px 12px; margin-top: 2px; opacity: 1; visibility: visible; transform: none; }

  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: 0.95rem; }
  .hero-stats { gap: var(--space-3); }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .courses-grid { grid-template-columns: 1fr; }
  .page-hero { height: 320px; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .btn-lg { padding: 14px 24px; font-size: 0.95rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-info-card { padding: var(--space-4); }
}

/* ============================================================
   Utilities
   ============================================================ */
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-gold { color: var(--tertiary-container); }
.text-muted { color: var(--on-surface-variant); }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.serif { font-family: var(--font-serif); }