/* ==========================================================================
   OAKWOOD INTERNATIONAL ACADEMY - MAIN STYLESHEET
   Design System, Typography, Layout, Header, Footer & Global Styles
   ========================================================================== */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* --- CSS Variables & Design Tokens --- */
:root {
  /* Brand Palette - Manav Rachna 'The School' Royal Navy & Radiant Gold */
  --color-primary-navy: #0b2545;
  --color-primary-dark: #07152b;
  --color-primary-light: #133b70;
  --color-accent-blue: #2563eb;
  --color-accent-cyan: #0284c7;
  --color-accent-gold: #d97706;
  --color-accent-gold-light: #f59e0b;
  --color-accent-gold-soft: #fef3c7;
  --color-emerald: #059669;
  --color-emerald-light: #d1fae5;

  /* Neutral Surface & Canvas */
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-surface-alt: #f1f5f9;
  --bg-dark-section: #07152b;
  --bg-dark-card: #0d2240;

  /* Text & Border Colors */
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #94a3b8;
  --text-white: #ffffff;
  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-gold: rgba(217, 119, 6, 0.45);

  /* Typography */
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Cinzel', Georgia, serif;

  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 4px 6px -1px rgba(11, 31, 58, 0.07), 0 2px 4px -2px rgba(11, 31, 58, 0.05);
  --shadow-md: 0 10px 15px -3px rgba(11, 31, 58, 0.08), 0 4px 6px -4px rgba(11, 31, 58, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(11, 31, 58, 0.1), 0 8px 10px -6px rgba(11, 31, 58, 0.05);
  --shadow-xl: 0 25px 50px -12px rgba(11, 31, 58, 0.2);
  --shadow-gold: 0 8px 25px -4px rgba(217, 119, 6, 0.3);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  /* Container */
  --container-max: 1240px;
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, picture, svg, video {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button, input, select, textarea {
  font: inherit;
}

ul, ol {
  list-style: none;
}

/* --- Typography Utilities --- */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary-navy);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.school-crest-font {
  font-family: var(--font-serif);
  letter-spacing: 0.04em;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background-color: var(--color-accent-gold-soft);
  color: var(--color-accent-gold);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.section-label-blue {
  background-color: #eff6ff;
  color: var(--color-accent-blue);
  border-color: #bfdbfe;
}

.section-title {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  color: var(--color-primary-navy);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
}

.text-center {
  text-align: center;
}

/* --- Container & Spacing --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section-padding {
  padding-top: 80px;
  padding-bottom: 80px;
}

@media (min-width: 1024px) {
  .section-padding {
    padding-top: 104px;
    padding-bottom: 104px;
  }
}

/* --- Top Announcement Bar --- */
.top-bar {
  background: linear-gradient(90deg, #071527 0%, #0b1f3a 50%, #163664 100%);
  color: #e2e8f0;
  font-size: 0.8125rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.top-bar-alert {
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge-alert-pulse {
  background-color: var(--color-accent-gold);
  color: #fff;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.725rem;
  letter-spacing: 0.04em;
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.85; transform: scale(1.04); }
}

.top-bar-links {
  display: flex;
  align-items: center;
  gap: 8px 18px;
  flex-wrap: wrap;
}

.top-bar-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #cbd5e1;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.top-bar-link:hover {
  color: var(--color-accent-gold-light);
}

.top-bar-instagram {
  color: #fce7f3;
}

.top-bar-instagram:hover {
  color: #f472b6 !important;
}

/* --- Main Header / Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.98);
  padding: 2px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 82px;
}

/* Brand / School Logo */
.school-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.school-crest {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--color-primary-navy) 0%, var(--color-primary-light) 100%);
  border: 2px solid var(--color-accent-gold);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-gold);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.school-crest-img {
  width: 54px;
  height: 54px;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  background: #ffffff;
  padding: 3px;
  border: 2px solid var(--color-accent-gold);
  flex-shrink: 0;
}

.school-brand-text {
  display: flex;
  flex-direction: column;
}

.school-name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary-navy);
  line-height: 1.15;
  letter-spacing: 0.02em;
}

.school-tagline {
  font-size: 0.725rem;
  font-weight: 600;
  color: var(--color-accent-gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Desktop Navigation Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 14px;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-primary-navy);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--color-accent-blue);
  background-color: #f1f5f9;
}

.nav-link.active {
  color: var(--color-accent-blue);
  background-color: #eff6ff;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 14px;
  right: 14px;
  height: 2px;
  background-color: var(--color-accent-blue);
  border-radius: var(--radius-full);
}

/* Navigation Actions / Buttons */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-header-cta {
  background: linear-gradient(135deg, var(--color-accent-gold) 0%, #b45309 100%);
  color: #ffffff;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 14px rgba(217, 119, 6, 0.35);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-normal);
  border: none;
  cursor: pointer;
}

.btn-header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 119, 6, 0.5);
  color: #ffffff;
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--color-primary-navy);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.mobile-toggle:hover {
  background-color: var(--bg-surface-alt);
}

/* --- Mobile Drawer Menu --- */
.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(11, 31, 58, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-nav-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 85%;
  max-width: 360px;
  background: var(--bg-surface);
  z-index: 1200;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
  padding: 24px;
  overflow-y: auto;
}

.mobile-nav-drawer.open {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 30px;
}

.mobile-nav-list .nav-link {
  font-size: 1.05rem;
  padding: 12px 16px;
  border-radius: var(--radius-md);
}

.mobile-drawer-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
}

/* --- Global Footer --- */
.site-footer {
  background-color: var(--color-primary-dark);
  color: #cbd5e1;
  padding-top: 80px;
  padding-bottom: 30px;
  border-top: 4px solid var(--color-accent-gold);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr 1.5fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-col-about {
  padding-right: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.footer-brand .school-name {
  color: #ffffff;
}

.footer-desc {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: #94a3b8;
  margin-bottom: 24px;
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: 10px;
}

.social-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #e2e8f0;
  transition: all var(--transition-fast);
}

.social-icon:hover {
  background: var(--color-accent-gold);
  color: #ffffff;
  border-color: var(--color-accent-gold);
  transform: translateY(-3px);
}

.footer-col-title {
  color: #ffffff;
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 36px;
  height: 2px;
  background-color: var(--color-accent-gold);
  border-radius: var(--radius-full);
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  color: #94a3b8;
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-link:hover {
  color: #ffffff;
  transform: translateX(4px);
}

.footer-contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.9375rem;
  color: #94a3b8;
  align-items: flex-start;
}

.footer-contact-item a {
  word-break: break-word;
  overflow-wrap: anywhere;
  transition: color var(--transition-fast);
}

.footer-contact-item a:hover {
  color: #ffffff !important;
}

.footer-instagram-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  color: #ffffff !important;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  text-decoration: none !important;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.footer-instagram-badge:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

.footer-contact-icon {
  color: var(--color-accent-gold);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-affiliations {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-top: 20px;
}

.footer-affiliations-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent-gold-light);
  margin-bottom: 8px;
}

.affiliations-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge-affiliation {
  background: rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.875rem;
  color: #64748b;
}

.footer-bottom a {
  color: #94a3b8;
}

.footer-bottom a:hover {
  color: #ffffff;
}

.footer-credit {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
  font-size: 0.8125rem;
  color: #94a3b8;
  letter-spacing: 0.25px;
}

.footer-credit .credit-author {
  color: #cbd5e1;
  font-weight: 500;
}

/* ==========================================================================
   Comprehensive Responsive System for Standard Mobile & Laptop Displays
   ========================================================================== */

/* Utility Responsive Grids */
.grid-4-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.grid-3-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.grid-2-cols {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.grid-split-lead {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}

.grid-split-media {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 32px;
  align-items: center;
}

/* Tablet & Smaller Laptop Breakpoint (max-width: 1024px) */
@media (max-width: 1024px) {
  .nav-menu, .btn-header-cta {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
  .grid-4-cols {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .grid-3-cols {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .grid-split-lead {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .grid-split-media {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .section-padding {
    padding-top: 64px;
    padding-bottom: 64px;
  }
}

/* Smartphone Breakpoint (Standard phone width: max-width: 768px) */
@media (max-width: 768px) {
  body {
    padding-bottom: 30px; /* Space for floating buttons */
  }

  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .section-padding {
    padding-top: 40px !important;
    padding-bottom: 40px !important;
  }

  /* Automatic graceful fallback for general layout grids */
  .grid-split-lead,
  .grid-split-media,
  .grid-2-cols,
  .grid-3-cols {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }

  /* Organized 2x2 grids on phones */
  .grid-4-cols,
  .quick-cards-grid,
  .stats-grid,
  .hostel-checklist-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }

  /* General fallback */
  [style*="grid-template-columns: 1fr 1fr"],
  [style*="grid-template-columns: 1.2fr 1fr"],
  [style*="grid-template-columns: 1fr 2fr"] {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }

  .form-row {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  /* Prevent iOS Safari from auto-zooming into inputs */
  .form-input, .form-select, .form-textarea {
    font-size: 16px !important;
    min-height: 46px;
    padding: 10px 14px !important;
    border-radius: 8px !important;
  }

  /* Fluid standard mobile titles */
  .section-label {
    font-size: 0.72rem !important;
    padding: 4px 12px !important;
    margin-bottom: 8px !important;
  }

  .section-title {
    font-size: clamp(1.45rem, 5.5vw, 1.95rem) !important;
    line-height: 1.2 !important;
    margin-bottom: 10px !important;
  }

  .section-subtitle {
    font-size: 0.88rem !important;
    line-height: 1.5 !important;
    margin-bottom: 24px !important;
  }

  .subpage-title {
    font-size: clamp(1.6rem, 5.5vw, 2.1rem) !important;
    line-height: 1.25 !important;
    margin-top: 10px !important;
  }

  .subpage-banner {
    padding: 36px 0 28px !important;
  }

  /* Modals take standard mobile viewport width */
  .modal-dialog {
    max-width: 95% !important;
    margin: 12px auto !important;
    max-height: 92vh !important;
    border-radius: 16px !important;
  }

  .modal-header {
    padding: 14px 18px !important;
  }

  .modal-title {
    font-size: 1.15rem !important;
  }

  .modal-body {
    padding: 18px 14px !important;
  }

  /* Images on phones */
  .principal-image-wrap img,
  .director-image-wrap img {
    height: 220px !important;
    width: 100% !important;
    object-fit: cover !important;
    border-radius: 12px !important;
  }

  /* Top bar layout for phones: hide redundant top bar to eliminate screen clutter */
  .top-bar {
    display: none !important;
  }

  /* Navigation Header on Mobile */
  .site-header {
    padding: 0 !important;
  }

  .nav-container {
    height: 62px !important;
  }

  .school-brand {
    gap: 10px !important;
  }

  .school-crest-img {
    width: 42px !important;
    height: 42px !important;
    padding: 2px !important;
  }

  .school-brand-text .school-name {
    font-size: 1.05rem !important;
    line-height: 1.15 !important;
  }

  .school-brand-text .school-tagline {
    font-size: 0.65rem !important;
    letter-spacing: 0.04em !important;
  }

  .mobile-toggle {
    width: 40px !important;
    height: 40px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 8px !important;
    background: rgba(13, 37, 69, 0.08) !important;
    color: #0b2545 !important;
  }

  /* Hostel highlight banner */
  .hostel-highlight-strip {
    font-size: 0.74rem !important;
    padding: 6px 10px !important;
    line-height: 1.3;
    letter-spacing: 0.02em;
    text-align: center;
    justify-content: center;
  }

  .hostel-highlight-strip svg {
    display: none;
  }

  /* Footer layout */
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 10px;
    padding-top: 20px !important;
  }

  .footer-credit {
    margin-top: 14px;
    padding-top: 12px;
    font-size: 0.75rem;
  }

  /* Compact floating WhatsApp for phones */
  .floating-whatsapp {
    bottom: 18px !important;
    right: 18px !important;
    left: auto !important;
    width: 52px !important;
    height: 52px !important;
    padding: 0 !important;
    border-radius: 50% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-shadow: 0 4px 18px rgba(37, 211, 102, 0.5) !important;
  }

  .floating-whatsapp svg {
    width: 28px !important;
    height: 28px !important;
  }

  .floating-whatsapp .whatsapp-label {
    display: none !important;
  }
}

/* Extra small smartphones (iPhone SE, Galaxy Mini: max-width: 380px) */
@media (max-width: 380px) {
  .container {
    padding-left: 12px;
    padding-right: 12px;
  }
  .school-brand-text .school-name {
    font-size: 0.98rem !important;
  }
  .school-brand-text .school-tagline {
    font-size: 0.60rem !important;
  }
  .school-crest-img {
    width: 38px !important;
    height: 38px !important;
  }
  .btn {
    padding: 9px 14px !important;
    font-size: 0.82rem !important;
  }
  .grid-4-cols,
  .quick-cards-grid,
  .stats-grid {
    grid-template-columns: 1fr !important; /* On super small 320px screens, stack 1 column */
  }
}