/* ==========================================================================
   MedKnowledge — Colleges Landing Page
   Design tokens: clinical blue + white, "pulse" motif (heartbeat -> AI waveform)
   No external fonts / no CDN — system font stack, tuned type scale.
   ========================================================================== */

:root {
  /* -- Color: 6 named tokens -- */
  --white:        #FFFFFF;
  --mist:         #F3F7FD;   /* soft blue-tinted surface */
  --mist-deep:    #E6EEFC;   /* card borders / dividers */
  --clinical:     #1652F0;   /* primary action blue */
  --clinical-dk:  #0F3FC4;   /* primary hover */
  --navy:         #0B1F4D;   /* headings, dark sections */
  --pulse-teal:   #14B8A6;   /* secondary accent — vitality */
  --coral:        #FF6E6E;   /* used once: support/donation CTA */

  --text:         #1B2540;
  --text-soft:    #5B6B85;
  --text-faint:   #8896AC;

  /* -- Type -- */
  --font-display: -apple-system, "Segoe UI", "Segoe UI Variable", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-body:    -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono:    "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  /* -- Layout -- */
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-pill: 999px;
  --max-w: 1200px;
  --shadow-sm: 0 2px 10px rgba(11, 31, 77, 0.06);
  --shadow-md: 0 12px 30px rgba(11, 31, 77, 0.10);
  --shadow-lg: 0 24px 60px rgba(11, 31, 77, 0.16);
  --border: 1px solid var(--mist-deep);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: 3px solid var(--clinical);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy);
  color: var(--white);
  padding: 12px 20px;
  z-index: 999;
  border-radius: 0 0 10px 0;
}
.skip-link:focus {
  left: 0;
}

/* ---------- Layout helpers ---------- */
.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
section { position: relative; padding: 96px 0; }
.section-tight { padding: 72px 0; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clinical);
  margin-bottom: 16px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--pulse-teal);
  display: inline-block;
}
.section-head {
  max-width: 660px;
  margin: 0 0 48px;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
h2.title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--navy);
  line-height: 1.15;
}
.subtitle {
  margin-top: 14px;
  font-size: 17px;
  color: var(--text-soft);
}
.bg-mist { background: var(--mist); }
.bg-navy { background: var(--navy); color: var(--white); }
.bg-navy .title, .bg-navy h3 { color: var(--white); }
.bg-navy .subtitle { color: rgba(255,255,255,0.72); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 15px;
  border: 2px solid transparent;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--clinical);
  color: var(--white);
  box-shadow: var(--shadow-md);
}
.btn-primary:hover { background: var(--clinical-dk); box-shadow: var(--shadow-lg); }
.btn-outline {
  background: transparent;
  border-color: var(--mist-deep);
  color: var(--navy);
}
.btn-outline:hover { border-color: var(--clinical); color: var(--clinical); }
.btn-ghost-invert {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.28);
  color: var(--white);
  backdrop-filter: blur(6px);
}
.btn-ghost-invert:hover { background: rgba(255,255,255,0.18); }
.btn-coral { background: var(--coral); color: var(--white); box-shadow: var(--shadow-md); }
.btn-coral:hover { background: #ff5252; box-shadow: var(--shadow-lg); }
.btn-sm { padding: 10px 18px; font-size: 13px; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: var(--border);
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-mark { width: 40px; height: 40px; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-weight: 800; font-size: 15px; color: var(--navy); letter-spacing: -0.01em; }
.brand-sub { font-size: 11px; color: var(--text-faint); letter-spacing: 0.05em; text-transform: uppercase; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-soft);
  transition: color 0.2s var(--ease);
}
.nav-links a:hover { color: var(--clinical); }
.header-cta { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  margin: 5px 0;
  transition: 0.25s var(--ease);
}

/* ---------- Hero ---------- */
.hero {
  padding: 72px 0 60px;
  overflow: hidden;
  background:
    radial-gradient(720px 420px at 82% -10%, rgba(22,82,240,0.10), transparent 60%),
    radial-gradient(600px 400px at -10% 30%, rgba(20,184,166,0.08), transparent 60%),
    var(--white);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero-copy h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  color: var(--navy);
}
.hero-copy h1 .accent { color: var(--clinical); }
.hero-copy p.lead {
  margin-top: 20px;
  font-size: 18px;
  color: var(--text-soft);
  max-width: 520px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}
.hero-trust {
  display: flex;
  gap: 28px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.hero-trust div { display: flex; flex-direction: column; }
.hero-trust strong { font-size: 22px; color: var(--navy); font-weight: 800; }
.hero-trust span { font-size: 12px; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.06em; }

.hero-art {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.hero-blob {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 55% at 70% 20%, rgba(22,82,240,0.14), transparent 70%),
    radial-gradient(55% 50% at 15% 85%, rgba(20,184,166,0.14), transparent 70%);
  z-index: 0;
}
.hero-photo-card {
  position: relative;
  z-index: 1;
  width: min(100%, 380px);
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 6px solid var(--white);
  background: var(--mist);
}
.hero-photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 15%;
  display: block;
}
.hero-photo-wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 46px;
  width: 100%;
}
.hero-badge {
  position: absolute;
  z-index: 2;
  left: -18px;
  bottom: 34px;
  display: flex;
  align-items: center;
  gap: 9px;
  background: var(--white);
  border: var(--border);
  border-radius: var(--radius-pill);
  padding: 11px 18px 11px 14px;
  box-shadow: var(--shadow-md);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--navy);
}
.hero-badge-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--pulse-teal);
  flex-shrink: 0;
  box-shadow: 0 0 0 4px rgba(20,184,166,0.18);
}
@media (max-width: 520px) {
  .hero-badge { left: 8px; bottom: 16px; }
}

/* ---------- Welcome ---------- */
.welcome-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
}
.welcome-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--mist);
  border: var(--border);
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 20px;
}
.welcome-copy p { color: var(--text-soft); font-size: 16px; margin-top: 16px; }
.welcome-copy p:first-of-type { margin-top: 22px; }
.welcome-visual {
  background: linear-gradient(160deg, var(--navy), #14306E);
  border-radius: var(--radius-lg);
  padding: 40px;
  color: var(--white);
  box-shadow: var(--shadow-lg);
}
.welcome-visual ul { display: flex; flex-direction: column; gap: 18px; }
.welcome-visual li { display: flex; gap: 14px; align-items: flex-start; font-size: 15px; }
.welcome-visual li .ico { flex-shrink: 0; width: 34px; height: 34px; border-radius: 10px; background: rgba(255,255,255,0.12); display: flex; align-items: center; justify-content: center; }
.welcome-visual li .ico svg { width: 18px; height: 18px; stroke: var(--pulse-teal); }

/* ---------- Feature cards ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--white);
  border: var(--border);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--mist-deep);
}
.feature-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--mist);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.feature-icon svg { width: 24px; height: 24px; stroke: var(--clinical); fill: none; stroke-width: 1.8; }
.feature-card h3 { font-size: 16px; font-weight: 700; color: var(--navy); }
.feature-card p { font-size: 13.5px; color: var(--text-soft); margin-top: 6px; }

/* ---------- Screenshots ---------- */
.screens-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.screen-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: var(--border);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}
.screen-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.screen-thumb {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--mist), var(--mist-deep));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-faint);
  position: relative;
}
.screen-thumb svg { width: 42px; height: 42px; stroke: var(--clinical); opacity: 0.5; }
.screen-thumb .ph-label {
  position: absolute;
  bottom: 10px;
  left: 10px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  background: rgba(255,255,255,0.8);
  padding: 3px 8px;
  border-radius: 6px;
}
.screen-body { padding: 18px 20px 22px; }
.screen-body h3 { font-size: 15px; font-weight: 700; color: var(--navy); }
.screen-body p { font-size: 13px; color: var(--text-soft); margin-top: 6px; }

/* ---------- Trust cards ---------- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}
.trust-card {
  background: var(--white);
  border: var(--border);
  border-radius: var(--radius-md);
  padding: 24px 18px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.trust-card .feature-icon { margin: 0 auto 14px; }
.trust-card h3 { font-size: 14px; font-weight: 700; color: var(--navy); }

/* ---------- About company ---------- */
.about-card {
  background: var(--mist);
  border: var(--border);
  border-radius: var(--radius-lg);
  padding: 44px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 40px;
}
.about-field dt {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.about-field dd {
  margin: 6px 0 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
  font-family: var(--font-mono);
}
.about-field dd a:hover { color: var(--clinical); }

/* ---------- Stats ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-card {
  text-align: center;
  padding: 30px 16px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
}
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 800;
  color: var(--white);
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 3px;
}
.stat-num .plus { color: var(--pulse-teal); }
.stat-label { margin-top: 8px; font-size: 13px; color: rgba(255,255,255,0.65); }
.stat-under {
  width: 40px;
  height: 3px;
  background: var(--pulse-teal);
  margin: 14px auto 0;
  border-radius: 3px;
}

/* ---------- Testimonials ---------- */
.testi-track-wrap { position: relative; max-width: 720px; margin: 0 auto; }
.testi-track { overflow: hidden; border-radius: var(--radius-lg); }
.testi-slides { display: flex; transition: transform 0.5s var(--ease); }
.testi-slide { min-width: 100%; padding: 4px; }
.testi-card {
  background: var(--white);
  border: var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.testi-avatar {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--mist);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.testi-avatar svg { width: 26px; height: 26px; stroke: var(--clinical); }
.testi-quote { font-size: 16px; color: var(--text-soft); font-style: italic; }
.testi-badge {
  display: inline-block;
  margin-top: 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--pulse-teal);
  background: rgba(20,184,166,0.1);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
}
.testi-name { margin-top: 10px; font-weight: 700; color: var(--navy); font-size: 14px; }
.testi-role { font-size: 12.5px; color: var(--text-faint); }
.testi-controls {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 22px;
}
.testi-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--mist-deep);
  border: none;
  padding: 0;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}
.testi-dot[aria-current="true"] { background: var(--clinical); transform: scale(1.3); }
.testi-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: var(--white);
  border: var(--border);
  width: 42px; height: 42px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-sm);
}
.testi-arrow svg { width: 18px; height: 18px; stroke: var(--navy); }
.testi-arrow.prev { left: -21px; }
.testi-arrow.next { right: -21px; }
@media (max-width: 640px) { .testi-arrow { display: none; } }

/* ---------- Share section ---------- */
.share-card {
  background: linear-gradient(150deg, var(--clinical), #3A6BFF);
  border-radius: var(--radius-lg);
  padding: 52px;
  color: var(--white);
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
.share-card .title { color: var(--white); }
.share-card .subtitle { color: rgba(255,255,255,0.82); }
.share-channels {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
.channel-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.24);
}
.share-actions { display: flex; flex-direction: column; gap: 12px; }
.share-actions .btn { width: 100%; }
#copy-feedback {
  font-size: 12.5px;
  text-align: center;
  min-height: 18px;
  color: var(--pulse-teal-l, #A9F0E5);
}
.qr-box {
  margin-top: 6px;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 14px;
  display: none;
  align-items: center;
  justify-content: center;
}
.qr-box.is-visible { display: flex; }
.qr-box img { width: 140px; height: 140px; border-radius: 8px; }

/* ---------- Donation ---------- */
.donate-card {
  max-width: 780px;
  margin: 0 auto;
  background: var(--white);
  border: 2px solid var(--mist-deep);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  box-shadow: var(--shadow-md);
}
.donate-icon {
  width: 60px; height: 60px;
  border-radius: 18px;
  background: rgba(255,110,110,0.1);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
}
.donate-icon svg { width: 30px; height: 30px; stroke: var(--coral); }
.donate-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 22px 0 30px;
}
.donate-list li {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--navy);
  background: var(--mist);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
}

/* ---------- Download brochure ---------- */
.download-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 44px;
  box-shadow: var(--shadow-lg);
}
.download-left { display: flex; align-items: center; gap: 20px; }
.download-icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.download-icon svg { width: 28px; height: 28px; stroke: var(--pulse-teal); }
.download-left h3 { font-size: 18px; font-weight: 700; }
.download-left p { font-size: 13.5px; color: rgba(255,255,255,0.65); margin-top: 4px; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  border: var(--border);
  border-radius: var(--radius-md);
  background: var(--white);
  overflow: hidden;
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: none;
  padding: 20px 24px;
  text-align: left;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--navy);
}
.faq-q .plus {
  flex-shrink: 0;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--mist);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
}
.faq-q .plus::before, .faq-q .plus::after {
  content: "";
  position: absolute;
  background: var(--clinical);
  border-radius: 2px;
}
.faq-q .plus::before { width: 10px; height: 2px; }
.faq-q .plus::after { width: 2px; height: 10px; }
.faq-item[data-open="true"] .plus { transform: rotate(45deg); background: var(--clinical); }
.faq-item[data-open="true"] .plus::before, .faq-item[data-open="true"] .plus::after { background: var(--white); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease);
}
.faq-a p { padding: 0 24px 22px; font-size: 14.5px; color: var(--text-soft); }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); color: rgba(255,255,255,0.7); padding: 64px 0 28px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand { display: flex; gap: 12px; align-items: center; margin-bottom: 14px; }
.footer-brand .brand-name { color: var(--white); }
.footer-brand .brand-sub { color: rgba(255,255,255,0.5); }
.footer-col h4 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.footer-col a:hover { color: var(--pulse-teal); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 24px;
  font-size: 13px;
}

/* ---------- Reveal-on-scroll ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid, .welcome-grid { grid-template-columns: 1fr; }
  .hero-art { order: -1; max-width: 380px; margin: 0 auto; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .screens-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .about-card { grid-template-columns: 1fr; }
  .share-card { grid-template-columns: 1fr; padding: 36px; }
  .download-card { flex-direction: column; text-align: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-links, .header-cta .btn-outline { display: none; }
  .nav-toggle { display: block; }
  section { padding: 64px 0; }
  .trust-grid, .screens-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 520px) {
  .about-card { padding: 28px; }
  .donate-card { padding: 32px 24px; }
  .share-card { padding: 26px; }
}

/* Mobile nav panel */
.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 10px 24px 20px;
  border-top: var(--border);
  background: var(--white);
}
.mobile-nav.is-open { display: flex; }
.mobile-nav a { padding: 12px 4px; font-weight: 600; color: var(--navy); border-bottom: 1px solid var(--mist); }
.mobile-nav .btn { margin-top: 10px; }