/* ════════════════════════════════════════
   GVDEG — Global Veterinary Dermatology Education Group
   Stylesheet · v1.0
   ════════════════════════════════════════ */

/* ── CSS Variables ─────────────────────── */
:root {
  --teal:      #1a6b6b;
  --teal-dark: #0f4040;
  --teal-lt:   #e6f4f4;
  --gold:      #c9922a;
  --gold-lt:   #fdf4e3;
  --ink:       #1a1a2e;
  --slate:     #4a5568;
  --mist:      #f7f9fb;
  --white:     #ffffff;
  --border:    #dce6e6;

  --font-display: 'DM Sans', system-ui, sans-serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --radius-sm: 6px;
  --radius:    12px;
  --radius-lg: 20px;

  --shadow-sm: 0 2px 8px rgba(26,107,107,.08);
  --shadow:    0 6px 24px rgba(26,107,107,.12);
  --shadow-lg: 0 16px 48px rgba(26,107,107,.18);

  --transition: .25s cubic-bezier(.4,0,.2,1);
  --max-w: 1160px;
}

/* ── Reset ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }

/* ── Container ──────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 24px;
}
.section-pad { padding-block: 80px; }

/* ══════════════ BUTTONS ══════════════════ */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: .95rem;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--gold);
  color: var(--white);
  border-color: var(--gold);
}
.btn-primary:hover { background: #b07c1f; border-color: #b07c1f; transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-secondary {
  background: var(--teal);
  color: var(--white);
  border-color: var(--teal);
}
.btn-secondary:hover { background: var(--teal-dark); border-color: var(--teal-dark); transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.7);
}
.btn-outline:hover { background: rgba(255,255,255,.12); }
.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-sm { padding: 8px 18px; font-size: .875rem; }

/* ══════════════ HEADER / NAV ═════════════ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow); }

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--teal-dark);
  font-weight: 700;
  flex-shrink: 0;
}
.logo-icon { font-size: 1.5rem; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 500;
  color: var(--slate);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active { color: var(--teal); background: var(--teal-lt); }
.btn-donate-nav {
  background: var(--gold);
  color: var(--white) !important;
  margin-left: 8px;
}
.btn-donate-nav:hover { background: #b07c1f; }

/* Dropdown */
.dropdown { position: relative; }
.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  min-width: 200px;
  z-index: 100;
}
.dropdown-menu a {
  display: block;
  padding: 8px 14px;
  font-size: .9rem;
  color: var(--slate);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.dropdown-menu a:hover { background: var(--teal-lt); color: var(--teal); }
.dropdown-menu.open { display: block; animation: fadeDown .2s ease; }

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: var(--transition);
}

/* ══════════════ HERO ═════════════════════ */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--teal-dark) 0%, #1a6b6b 40%, #2d8a6b 70%, #1a6b6b 100%);
}
/* Subtle texture */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 80%, rgba(201,146,42,.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,.05) 0%, transparent 50%);
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 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");
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding-block: 120px 80px;
  animation: heroFadeUp .8s ease both;
}
@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-eyebrow {
  display: inline-block;
  background: rgba(255,255,255,.12);
  color: rgba(255,255,255,.85);
  border: 1px solid rgba(255,255,255,.2);
  padding: 4px 14px;
  border-radius: 50px;
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero-title em { color: var(--gold); font-style: normal; }

.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,.82);
  max-width: 540px;
  margin-bottom: 36px;
  font-weight: 300;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,.5);
  font-size: 1.2rem;
  animation: bounce 2s infinite;
}
@keyframes bounce { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(8px); } }

/* ══════════════ MISSION STRIP ════════════ */
.mission-strip {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding-block: 60px;
}
.mission-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.mission-card {
  text-align: center;
  padding: 28px 20px;
  border-radius: var(--radius);
  background: var(--mist);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.mission-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--teal); }
.mission-icon { font-size: 2.2rem; margin-bottom: 12px; }
.mission-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--teal-dark);
  margin-bottom: 8px;
}
.mission-card p { font-size: .9rem; color: var(--slate); }

/* ══════════════ ABOUT SNAP ═══════════════ */
.about-snap { background: var(--white); }
.about-snap-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.section-tag {
  display: inline-block;
  color: var(--teal);
  font-weight: 500;
  font-size: .8rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.about-snap-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  color: var(--teal-dark);
  line-height: 1.25;
  margin-bottom: 20px;
}
.about-snap-text p { color: var(--slate); margin-bottom: 16px; }
.about-snap-text .btn { margin-top: 8px; }

.world-map-placeholder {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--teal-lt) 0%, #d4ede8 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.world-map-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100%25' height='100%25'%3E%3Cellipse cx='50%25' cy='50%25' rx='45%25' ry='35%25' fill='none' stroke='%231a6b6b' stroke-width='1' stroke-opacity='.15' stroke-dasharray='4 4'/%3E%3Cellipse cx='50%25' cy='50%25' rx='30%25' ry='22%25' fill='none' stroke='%231a6b6b' stroke-width='1' stroke-opacity='.1'/%3E%3C/svg%3E");
}
.map-dot {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--gold);
  border-radius: 50%;
  border: 2px solid var(--white);
  box-shadow: 0 0 0 4px rgba(201,146,42,.25);
  animation: pulse 2.5s infinite;
}
.map-dot:nth-child(2) { animation-delay: .5s; }
.map-dot:nth-child(3) { animation-delay: 1s; }
.map-dot:nth-child(4) { animation-delay: 1.5s; }
.map-dot:nth-child(5) { animation-delay: .75s; }
.map-dot:nth-child(6) { animation-delay: 1.25s; }
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 4px rgba(201,146,42,.2); }
  50%      { box-shadow: 0 0 0 10px rgba(201,146,42,.0); }
}
.map-label {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  font-size: .8rem;
  font-weight: 500;
  color: var(--teal);
  letter-spacing: .06em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ══════════════ AD SECTION ═══════════════ */
.ad-section { background: var(--mist); padding-block: 24px; border-block: 1px solid var(--border); }
.ad-wrap { text-align: center; }

/* ══════════════ DONATE CTA ═══════════════ */
.donate-cta {
  background: linear-gradient(135deg, var(--teal-dark) 0%, var(--teal) 100%);
  padding-block: 80px;
}
.donate-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.donate-cta-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--white);
  margin-bottom: 12px;
}
.donate-cta-text p { color: rgba(255,255,255,.8); max-width: 500px; }
.donate-cta-actions { flex-shrink: 0; text-align: center; }
.donate-note { color: rgba(255,255,255,.6); font-size: .8rem; margin-top: 10px; }

/* ══════════════ PARTNERS ═════════════════ */
.partners { background: var(--mist); }
.partners-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  text-align: center;
  color: var(--teal-dark);
  margin-bottom: 40px;
}
.partners-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}
.partner-logo-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .9rem;
  color: var(--slate);
  transition: var(--transition);
  min-width: 120px;
}
.partner-logo-link:hover { border-color: var(--teal); color: var(--teal); box-shadow: var(--shadow-sm); transform: translateY(-2px); }

/* ══════════════ FOOTER ═══════════════════ */
.site-footer { background: var(--ink); color: rgba(255,255,255,.7); }
.footer-wrap {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-block: 64px 40px;
}
.footer-brand .logo { color: var(--white); margin-bottom: 16px; }
.footer-brand p { font-size: .875rem; line-height: 1.6; margin-bottom: 4px; }
.footer-brand a { color: rgba(255,255,255,.7); transition: color var(--transition); }
.footer-brand a:hover { color: var(--gold); }

.footer-nav h4 {
  font-family: var(--font-display);
  font-size: .95rem;
  color: var(--white);
  margin-bottom: 16px;
  font-weight: 600;
}
.footer-nav a {
  display: block;
  font-size: .875rem;
  margin-bottom: 10px;
  transition: color var(--transition);
}
.footer-nav a:hover { color: var(--gold); }

.footer-donate h4 {
  font-family: var(--font-display);
  font-size: .95rem;
  color: var(--white);
  margin-bottom: 16px;
}
.footer-donate p { font-size: .875rem; margin-bottom: 20px; line-height: 1.6; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-block: 20px;
}
.footer-bottom p { font-size: .8rem; color: rgba(255,255,255,.4); text-align: center; }

/* ══════════════ INNER PAGES ══════════════ */
.page-hero {
  background: linear-gradient(135deg, var(--teal-dark) 0%, var(--teal) 100%);
  padding-block: 80px 60px;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--white);
}
.page-hero .breadcrumb {
  font-size: .85rem;
  color: rgba(255,255,255,.6);
  margin-bottom: 12px;
}
.page-hero .breadcrumb a { color: rgba(255,255,255,.8); }
.page-hero .breadcrumb a:hover { color: var(--gold); }

.page-content { padding-block: 80px; }
.page-content h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--teal-dark);
  margin-bottom: 16px;
  margin-top: 40px;
}
.page-content h2:first-child { margin-top: 0; }
.page-content p { color: var(--slate); margin-bottom: 16px; max-width: 720px; }

/* ── Video Grid ─ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
  margin-top: 40px;
}
.video-card {
  background: var(--mist);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.video-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.video-card video { width: 100%; display: block; }
.video-card-body { padding: 16px 20px; }
.video-card-body h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--teal-dark);
}

/* ── Donate Page ─ */
.donate-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}
.donate-form-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}
.donate-form-card h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--teal-dark);
  margin-bottom: 8px;
}
.donate-form-card .subtitle {
  color: var(--slate);
  font-size: .9rem;
  margin-bottom: 28px;
}

/* Amount selector */
.amount-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 20px;
}
.amount-btn {
  padding: 12px 8px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  font-family: var(--font-body);
  font-size: .95rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}
.amount-btn:hover, .amount-btn.active {
  border-color: var(--teal);
  background: var(--teal-lt);
  color: var(--teal-dark);
}
.custom-amount {
  position: relative;
  margin-bottom: 24px;
}
.custom-amount span {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--slate);
  font-weight: 600;
}
.custom-amount input {
  width: 100%;
  padding: 12px 14px 12px 28px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: .95rem;
  transition: border-color var(--transition);
  outline: none;
}
.custom-amount input:focus { border-color: var(--teal); }

/* Payment tabs */
.payment-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--border);
  padding-bottom: 0;
}
.payment-tab {
  padding: 8px 16px;
  border: none;
  background: none;
  font-family: var(--font-body);
  font-size: .875rem;
  font-weight: 500;
  color: var(--slate);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
}
.payment-tab.active { color: var(--teal); border-bottom-color: var(--teal); }

.payment-panel { display: none; }
.payment-panel.active { display: block; }

/* PayPal / Venmo buttons */
.paypal-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px;
  background: #0070ba;
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-bottom: 10px;
  text-decoration: none;
}
.paypal-btn:hover { background: #005ea6; }
.venmo-btn {
  background: #3d95ce;
}
.venmo-btn:hover { background: #2c7db5; }

.form-field { margin-bottom: 16px; }
.form-field label {
  display: block;
  font-size: .85rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 6px;
}
.form-field input, .form-field select {
  width: 100%;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: .95rem;
  outline: none;
  transition: border-color var(--transition);
}
.form-field input:focus, .form-field select:focus { border-color: var(--teal); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.secure-note {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  color: var(--slate);
  margin-top: 16px;
  padding: 10px 14px;
  background: var(--mist);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.donate-sidebar { display: flex; flex-direction: column; gap: 24px; }
.sidebar-card {
  background: var(--mist);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.sidebar-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--teal-dark);
  margin-bottom: 12px;
}
.sidebar-card p { font-size: .9rem; color: var(--slate); margin-bottom: 10px; }
.impact-item {
  display: flex;
  gap: 14px;
  margin-bottom: 14px;
  align-items: flex-start;
}
.impact-icon { font-size: 1.5rem; flex-shrink: 0; }
.impact-item p { margin: 0; font-size: .875rem; }

/* ── Members grid ─ */
.members-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.member-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: var(--transition);
}
.member-card:hover { box-shadow: var(--shadow); border-color: var(--teal); }
.member-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--gold));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
  color: white;
  font-weight: 700;
}
.member-card h3 { font-family: var(--font-display); font-size: 1rem; color: var(--ink); margin-bottom: 4px; }
.member-card .credential { font-size: .8rem; color: var(--teal); font-weight: 500; margin-bottom: 6px; }
.member-card .country { font-size: .85rem; color: var(--slate); }

/* ══════════════ RESPONSIVE ═══════════════ */
@media (max-width: 1024px) {
  .footer-wrap { grid-template-columns: 1fr 1fr; }
  .about-snap-wrap { gap: 48px; }
  .donate-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .mission-grid { grid-template-columns: 1fr 1fr; }
  .about-snap-wrap { grid-template-columns: 1fr; }
  .donate-cta-inner { flex-direction: column; text-align: center; }
  .footer-wrap { grid-template-columns: 1fr; gap: 32px; padding-block: 48px 24px; }

  .main-nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--white);
    border-top: 1px solid var(--border);
    padding: 16px;
    box-shadow: var(--shadow-lg);
    gap: 4px;
  }
  .main-nav.open { display: flex; }
  .dropdown-menu { position: static; box-shadow: none; border: none; background: var(--teal-lt); margin-top: 4px; }
  .hamburger { display: flex; }
}

@media (max-width: 480px) {
  .mission-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .amount-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
}