/* ============================================
   RESPONSIVE — UNM BAHAGIA
   Mobile-First Breakpoints
   ============================================ */

/* ============================================
   MOBILE (max-width: 479px)
   ============================================ */
@media only screen and (max-width: 479px) {
  :root {
    --text-5xl: 2.25rem;
    --text-4xl: 1.75rem;
    --text-3xl: 1.375rem;
    --text-2xl: 1.25rem;
    --text-xl: 1.125rem;
    --text-lg: 1rem;
    --text-base: 0.9375rem;
    --nav-height: 64px;
  }

  .container {
    padding: 0 var(--space-4);
  }

  .section {
    padding: var(--space-12) 0;
  }

  .section--lg {
    padding: var(--space-16) 0;
  }

  h1 { font-size: var(--text-4xl); }
  h2 { font-size: var(--text-3xl); }
  h3 { font-size: var(--text-2xl); }

  /* Grids collapse to single column */
  .grid-2, .grid-3, .grid-4, .grid-5 {
    grid-template-columns: 1fr;
  }

  /* Navbar */
  .navbar__nav,
  .navbar__actions .navbar__cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .navbar__actions {
    gap: var(--space-2);
  }

  /* Hero */
  .hero {
    min-height: auto;
    padding-top: var(--nav-height);
    padding-bottom: var(--space-8);
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    padding: var(--space-8) var(--space-4);
    text-align: center;
  }

  .hero__image {
    order: -1;
  }

  .hero__image img {
    max-height: 320px;
  }

  .hero__tagline {
    font-size: 2.5rem;
  }

  .hero__supporting {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__buttons {
    justify-content: center;
  }

  .hero__badge {
    margin-left: auto;
    margin-right: auto;
  }

  /* Stats */
  .stat__number {
    font-size: 2.5rem;
  }

  /* Footer */
  .footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  /* Page Hero */
  .page-hero {
    padding: calc(var(--nav-height) + var(--space-8)) 0 var(--space-8);
  }

  /* Vision Section */
  .vision-section__tagline {
    font-size: 2.5rem;
  }

  /* Cards */
  .card {
    padding: var(--space-6);
  }

  /* Timeline */
  .timeline__item {
    padding-left: 56px;
  }

  .timeline__line {
    left: 20px;
  }

  .timeline__dot {
    left: 10px;
    width: 22px;
    height: 22px;
  }

  /* Horizontal Timeline */
  .timeline-horizontal {
    gap: var(--space-1);
  }

  .timeline-horizontal__item {
    flex: 0 0 160px;
  }

  /* Filter Tabs */
  .filter-tabs {
    gap: var(--space-1);
  }

  .filter-tab {
    padding: 8px 14px;
    font-size: var(--text-xs);
  }

  /* Buttons */
  .btn {
    padding: 12px 24px;
    font-size: var(--text-sm);
  }

  .btn--lg {
    padding: 14px 28px;
    font-size: var(--text-base);
  }

  /* Section Header */
  .section-header {
    margin-bottom: var(--space-8);
  }

  /* Pillar */
  .pillar {
    padding: var(--space-6);
  }

  .pillar__number {
    font-size: var(--text-4xl);
  }

  /* Book item */
  .book-item {
    flex-direction: column;
    gap: var(--space-2);
  }

  /* Award item */
  .award-item {
    flex-direction: column;
    gap: var(--space-3);
  }
}

/* ============================================
   LARGE MOBILE / SMALL TABLET (480–767px)
   ============================================ */
@media only screen and (min-width: 480px) and (max-width: 767px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.5rem;
    --nav-height: 64px;
  }

  .section {
    padding: var(--space-16) 0;
  }

  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-5 { grid-template-columns: repeat(2, 1fr); }

  /* Navbar */
  .navbar__nav,
  .navbar__actions .navbar__cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  /* Hero */
  .hero {
    min-height: auto;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    text-align: center;
  }

  .hero__image {
    order: -1;
  }

  .hero__image img {
    max-height: 400px;
  }

  .hero__supporting {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__buttons {
    justify-content: center;
  }

  .hero__badge {
    margin-left: auto;
    margin-right: auto;
  }

  /* Footer */
  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  /* Vision */
  .vision-section__tagline {
    font-size: 3rem;
  }
}

/* ============================================
   TABLET (768–1023px)
   ============================================ */
@media only screen and (min-width: 768px) and (max-width: 1023px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }

  /* Navbar */
  .navbar__nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  /* Hero */
  .hero__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .hero__image img {
    max-height: 450px;
  }

  /* Footer */
  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

/* ============================================
   SMALL DESKTOP (1024–1279px)
   ============================================ */
@media only screen and (min-width: 1024px) and (max-width: 1279px) {
  .grid-5 { grid-template-columns: repeat(3, 1fr); }

  .navbar__link {
    padding: 8px 12px;
    font-size: var(--text-xs);
  }

  .hero__image img {
    max-height: 500px;
  }
}

/* ============================================
   DESKTOP (≥ 1280px) — Default styles
   ============================================ */
@media only screen and (min-width: 1280px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* ============================================
   PRINT
   ============================================ */
@media print {
  .navbar,
  .hamburger,
  .mobile-nav,
  .footer__back-to-top,
  .btn {
    display: none !important;
  }

  .section {
    padding: 1rem 0;
  }

  body {
    font-size: 12pt;
    color: var(--color-black);
    background: var(--color-white);
  }

  .hero {
    min-height: auto;
    padding: 2rem 0;
    background: var(--color-white);
    color: var(--color-black);
  }
}