@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,600&display=swap');

/* ==========================================================================
   OFFICIAL BRAND DESIGN SYSTEM (STRICT PALETTE ENFORCEMENT)
   Primary brand:            #206BB2
   Secondary brand:          #35B8C2
   Light section background: #EAF7F8
   Main background:          #FFFFFF
   Headings and body text:   #243746
   CTA buttons / highlights: #F28C28
   Borders and dividers:     #DCE5EB
   Footer background:        #174F83
   ========================================================================== */

:root {
  --brand-primary: #206BB2;
  --brand-secondary: #35B8C2;
  --bg-light: #EAF7F8;
  --bg-main: #FFFFFF;
  --text-headings: #243746;
  --text-body: #243746;
  --color-cta: #F28C28;
  --color-cta-hover: #D9771C;
  --border-color: #DCE5EB;
  --footer-bg: #174F83;

  /* Aliases for consistent backwards-compatibility */
  --brand-blue: #206BB2;
  --brand-blue-hover: #174F83;
  --brand-navy: #174F83;
  --brand-cyan: #35B8C2;
  --slate-dark: #243746;
  --slate-body: #243746;
  --slate-muted: #243746;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-body);
  background-color: var(--bg-main);
  margin: 0;
  padding: 0;
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* High Legibility Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  color: var(--text-headings);
  letter-spacing: -0.025em;
  line-height: 1.25;
}

/* Ensure text on dark containers is strictly pure white and readable */
.text-white,
.text-white h1,
.text-white h2,
.text-white h3,
.text-white h4,
.text-white h5,
.text-white h6 {
  color: #FFFFFF !important;
}

/* Brand Gradients using Official Palette */
.gradient-text-brand {
  background: linear-gradient(135deg, #206BB2 0%, #35B8C2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-orange {
  background: linear-gradient(135deg, #F28C28 0%, #F59E0B 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Official Brand Badges */
.badge-brand,
.badge-foundational,
.badge-english,
.badge-hindi,
.badge-computer,
.badge-gk,
.badge-reasoning,
.badge-lifeskills,
.badge-science {
  background: #EAF7F8;
  color: #206BB2;
  border: 1px solid #DCE5EB;
  font-weight: 700;
  border-radius: 0.375rem;
}

/* Modern Animations */
@keyframes floatGravity1 {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-14px) rotate(1.5deg);
  }
}

@keyframes floatGravity2 {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-18px) rotate(-2deg);
  }
}

@keyframes floatGravitySlow {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.animate-gravity-1 {
  animation: floatGravity1 5s ease-in-out infinite;
}

.animate-gravity-2 {
  animation: floatGravity2 6s ease-in-out infinite;
}

.animate-gravity-slow {
  animation: floatGravitySlow 4.5s ease-in-out infinite;
}

/* 3D Perspective & Cards */
.perspective-container {
  perspective: 1200px;
}

.tilt-3d-card {
  transform-style: preserve-3d;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}

.tilt-3d-card:hover {
  transform: perspective(1200px) rotateY(-4deg) rotateX(4deg) translateY(-8px) scale(1.03);
  box-shadow: 0 24px 48px rgba(32, 107, 178, 0.18);
}

/* Clean Header */
.glass-header {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.25s ease;
}

.nav-link-item {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-body);
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-link-item:hover {
  color: var(--brand-primary);
  background-color: var(--bg-light);
}

/* CTA Buttons / Highlights */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8125rem 1.75rem;
  background-color: var(--color-cta);
  color: #FFFFFF !important;
  font-weight: 700;
  font-size: 0.9375rem;
  border-radius: 0.625rem;
  text-decoration: none;
  transition: all 0.25s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(242, 140, 40, 0.35);
}

.btn-primary:hover {
  background-color: var(--color-cta-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(242, 140, 40, 0.45);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8125rem 1.75rem;
  background-color: var(--bg-main);
  color: var(--brand-primary) !important;
  font-weight: 700;
  font-size: 0.9375rem;
  border-radius: 0.625rem;
  text-decoration: none;
  border: 1.5px solid var(--border-color);
  transition: all 0.25s ease;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--brand-primary);
  background-color: var(--bg-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(32, 107, 178, 0.1);
}

.btn-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8125rem 1.75rem;
  background-color: var(--brand-primary);
  color: #FFFFFF !important;
  font-weight: 700;
  font-size: 0.9375rem;
  border-radius: 0.625rem;
  text-decoration: none;
  transition: all 0.25s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(32, 107, 178, 0.25);
}

.btn-brand:hover {
  background-color: var(--footer-bg);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(32, 107, 178, 0.35);
}

/* Card Base */
.card-base {
  background: var(--bg-main);
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 8px rgba(36, 55, 70, 0.04);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.card-base:hover {
  border-color: var(--brand-secondary);
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(32, 107, 178, 0.12);
}

/* Faculty Profile Card */
.faculty-card {
  background: var(--bg-main);
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.faculty-card:hover {
  border-color: var(--brand-secondary);
  transform: translateY(-5px);
  box-shadow: 0 16px 32px rgba(32, 107, 178, 0.1);
}

/* Dropdown */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-main);
  border-radius: 0.875rem;
  box-shadow: 0 20px 40px rgba(36, 55, 70, 0.14);
  border: 1px solid var(--border-color);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.2s ease;
  z-index: 60;
  pointer-events: none;
}

.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

/* Modal Drawer */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(36, 55, 70, 0.65);
  backdrop-filter: blur(6px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  bottom: 0;
  width: 100%;
  max-width: 540px;
  background: var(--bg-main);
  z-index: 1000;
  overflow-y: auto;
  box-shadow: -12px 0 50px rgba(0, 0, 0, 0.2);
  transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-drawer.active {
  right: 0;
}

/* Brand Background Utilities */
.bg-hero-clean {
  background: radial-gradient(circle at 80% 20%, #EAF7F8 0%, #FFFFFF 100%);
}

.bg-brand-light {
  background-color: var(--bg-light) !important;
}

.bg-brand-primary {
  background-color: var(--brand-primary) !important;
}

.bg-brand-secondary {
  background-color: var(--brand-secondary) !important;
}

.bg-brand-footer {
  background-color: var(--footer-bg) !important;
}

.border-brand-border {
  border-color: var(--border-color) !important;
}

.text-brand-text {
  color: var(--text-body) !important;
}

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

.text-brand-secondary {
  color: var(--brand-secondary) !important;
}

.text-brand-cta {
  color: var(--color-cta) !important;
}