/* ═══════════════════════════════════════════
   威海图鉴 · tujian.cloud
   Ocean-inspired Design System
   ═══════════════════════════════════════════ */

:root {
  --ocean-50: #f0f9ff;
  --ocean-100: #e0f2fe;
  --ocean-200: #bae6fd;
  --ocean-300: #7dd3fc;
  --ocean-400: #38bdf8;
  --ocean-500: #0ea5e9;
  --ocean-600: #0284c7;
  --ocean-700: #0369a1;
  --ocean-800: #075985;
  --ocean-900: #0c4a6e;

  --sky-50: #f8fafc;
  --sky-100: #f1f5f9;
  --sky-200: #e2e8f0;
  --sky-300: #cbd5e1;
  --sky-400: #94a3b8;
  --sky-500: #64748b;
  --sky-600: #475569;
  --sky-700: #334155;
  --sky-800: #1e293b;
  --sky-900: #0f172a;

  --gold-400: #facc15;
  --gold-500: #eab308;

  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  margin: 0; padding: 0; box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--sky-50);
  color: var(--sky-800);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ─── Hero ─── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0c4a6e 0%, #0369a1 25%, #0ea5e9 50%, #38bdf8 75%, #7dd3fc 100%);
  background-size: 400% 400%;
  animation: heroGradient 15s ease infinite;
  overflow: hidden;
}

@keyframes heroGradient {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(255,255,255,0.08) 0%, transparent 40%),
    radial-gradient(ellipse at 50% 80%, rgba(0,0,0,0.15) 0%, transparent 50%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
  animation: float linear infinite;
}

@keyframes float {
  0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-10vh) rotate(720deg); opacity: 0; }
}

/* ─── Nav ─── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  transition: var(--transition);
}

.nav.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
  padding: 12px 32px;
}

.nav.scrolled .nav-title { color: var(--ocean-800); }
.nav.scrolled .nav-link { color: var(--sky-600); }
.nav.scrolled .nav-link:hover { color: var(--ocean-600); background: var(--ocean-50); }
.nav.scrolled .nav-link.active { color: var(--ocean-600); }
.nav.scrolled .nav-menu-btn span { background: var(--sky-800); }

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo { font-size: 28px; }

.nav-title {
  font-family: 'Noto Serif SC', serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  transition: var(--transition);
}

.nav-links {
  display: flex;
  gap: 4px;
}

.nav-link {
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  border-radius: 10px;
  transition: var(--transition);
}

.nav-link:hover {
  background: rgba(255,255,255,0.15);
  color: var(--white);
}

.nav-link.active {
  background: rgba(255,255,255,0.2);
  color: var(--white);
}

.nav-actions {
  display: flex;
  gap: 8px;
}

.nav-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 20px;
  max-width: 800px;
}

.hero-title {
  margin-bottom: 24px;
}

.hero-title-line {
  display: block;
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(48px, 10vw, 88px);
  font-weight: 900;
  color: var(--white);
  text-shadow: 0 4px 30px rgba(0,0,0,0.2);
  letter-spacing: 0.05em;
  line-height: 1.1;
}

.hero-title-domain {
  display: block;
  font-size: clamp(16px, 3vw, 24px);
  font-weight: 400;
  color: rgba(255,255,255,0.75);
  margin-top: 4px;
  letter-spacing: 0.15em;
}

.hero-subtitle {
  display: block;
  font-size: clamp(18px, 3.5vw, 26px);
  font-weight: 300;
  color: rgba(255,255,255,0.95);
  margin-top: 16px;
  letter-spacing: 0.08em;
}

.hero-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.7);
  max-width: 500px;
  margin: 12px auto 0;
  line-height: 1.8;
}

.hero-slogan {
  margin: 24px 0;
}

.slogan-tag {
  display: inline-block;
  padding: 8px 24px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 40px;
  font-size: 15px;
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.05em;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin-bottom: 32px;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  padding: 18px 44px;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-num {
  font-size: 28px;
  font-weight: 700;
  color: var(--white);
}

.stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-top: 2px;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: rgba(255,255,255,0.25);
}

/* ─── Hero Tags (景点打卡标签) ─── */
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  max-width: 720px;
  margin: 0 auto;
}

.hero-tag {
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,0.9);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 30px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(4px);
  white-space: nowrap;
}

.hero-tag:hover {
  background: rgba(255,255,255,0.25);
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .hero-tags {
    gap: 6px;
    max-width: 100%;
    padding: 0 10px;
  }

  .hero-tag {
    padding: 6px 12px;
    font-size: 12px;
  }
}

.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  line-height: 0;
}

.hero-wave svg {
  width: 100%;
  height: 80px;
}

/* ─── Mobile Menu ─── */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 200;
  background: rgba(15,23,42,0.95);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.mobile-menu.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu-link {
  display: block;
  padding: 14px 40px;
  font-size: 18px;
  color: var(--white);
  text-decoration: none;
  border-radius: 12px;
  transition: var(--transition);
}

.mobile-menu-link:hover {
  background: rgba(255,255,255,0.1);
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 500;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--ocean-500), var(--ocean-600));
  color: var(--white);
  box-shadow: 0 4px 15px rgba(14,165,233,0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(14,165,233,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--ocean-600);
  border: 2px solid var(--ocean-200);
}

.btn-outline:hover {
  background: var(--ocean-50);
  border-color: var(--ocean-400);
}

.btn-block {
  width: 100%;
  justify-content: center;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
  border-radius: 14px;
}

/* ─── Section Headers ─── */
.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-title {
  font-family: 'Noto Serif SC', serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--sky-900);
}

.section-title.light {
  color: var(--white);
}

.section-desc {
  color: var(--sky-500);
  margin-top: 8px;
  font-size: 15px;
}

/* ─── Gallery Section ─── */
.gallery-section {
  padding: 80px 0;
}

/* ─── Spot Cards (景点图鉴) ─── */
.spot-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.spot-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
  animation: cardIn 0.4s ease both;
}

.spot-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.spot-card-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
  background: linear-gradient(135deg, var(--ocean-100), var(--ocean-200));
}

.spot-card-img-placeholder {
  width: 100%;
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  background: linear-gradient(135deg, var(--ocean-100), var(--ocean-200));
}

.spot-card-body {
  padding: 16px;
}

.spot-card-name {
  font-family: 'Noto Serif SC', serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--sky-900);
  margin-bottom: 6px;
}

.spot-card-desc {
  font-size: 13px;
  color: var(--sky-500);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.spot-card-time {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--ocean-600);
  background: var(--ocean-50);
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}

.spot-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-pill {
  display: inline-block;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 500;
  color: var(--ocean-700);
  background: var(--ocean-50);
  border: 1px solid var(--ocean-100);
  border-radius: 20px;
}

.spot-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px 14px;
}

.spot-card-count {
  font-size: 12px;
  color: var(--sky-400);
}

.spot-card-arrow {
  font-size: 14px;
  color: var(--sky-300);
  transition: var(--transition);
}

.spot-card:hover .spot-card-arrow {
  color: var(--ocean-500);
  transform: translateX(4px);
}

/* ─── Gallery (Image Grid) ─── */
.gallery-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.gallery-count {
  font-size: 14px;
  color: var(--sky-500);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 12px;
  border-radius: 8px;
}

.gallery-sort {
  display: flex;
  gap: 4px;
  background: var(--white);
  border-radius: 12px;
  padding: 4px;
  box-shadow: var(--shadow-sm);
}

.sort-btn {
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 500;
  border: none;
  border-radius: 9px;
  background: transparent;
  color: var(--sky-500);
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.sort-btn.active {
  background: var(--ocean-500);
  color: var(--white);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.gallery-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 20px;
}

.empty-icon {
  font-size: 56px;
  margin-bottom: 16px;
}

.gallery-empty p {
  color: var(--sky-400);
  font-size: 16px;
}

/* ─── Image Card ─── */
.image-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  animation: cardIn 0.4s ease both;
}

.image-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.image-card .card-img-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  cursor: pointer;
}

.image-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.image-card:hover .card-img-wrap img {
  transform: scale(1.05);
}

.card-rank-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  border-radius: 50%;
  background: linear-gradient(135deg, var(--ocean-500), var(--ocean-700));
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.card-rank-badge.gold { background: linear-gradient(135deg, #f59e0b, #d97706); }
.card-rank-badge.silver { background: linear-gradient(135deg, #94a3b8, #64748b); }
.card-rank-badge.bronze { background: linear-gradient(135deg, #d97706, #b45309); }

.card-top10-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--white);
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  border-radius: 20px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.card-body {
  padding: 16px;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--sky-800);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-desc {
  font-size: 12px;
  color: var(--sky-400);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.card-category {
  font-size: 12px;
  color: var(--sky-400);
  background: var(--sky-100);
  padding: 3px 10px;
  border-radius: 20px;
}

.card-uploader {
  font-size: 12px;
  color: var(--sky-400);
}

.card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px 16px;
}

.vote-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 600;
  border: 2px solid var(--ocean-200);
  border-radius: 30px;
  background: var(--white);
  color: var(--ocean-600);
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.vote-btn:hover {
  border-color: var(--ocean-400);
  background: var(--ocean-50);
}

.vote-btn.voted {
  background: linear-gradient(135deg, #ef4444, #f97316);
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(239,68,68,0.3);
}

.vote-btn .vote-icon {
  font-size: 18px;
  transition: var(--transition);
}

.vote-btn:hover .vote-icon {
  transform: scale(1.2);
}

.vote-btn.voted .vote-icon {
  animation: heartPop 0.4s ease;
}

@keyframes heartPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.4); }
  100% { transform: scale(1); }
}

.vote-count {
  font-size: 12px;
  color: var(--sky-400);
}

/* ─── Leaderboard ─── */
.leaderboard-section {
  padding: 80px 0;
  background: linear-gradient(180deg, var(--sky-50) 0%, var(--ocean-50) 100%);
}

.leaderboard-category-group {
  margin-bottom: 40px;
  animation: cardIn 0.4s ease both;
}

.leaderboard-category-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ocean-100);
}

.leaderboard-category-name {
  font-family: 'Noto Serif SC', serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--sky-800);
}

.leaderboard-category-badge {
  font-size: 12px;
  color: var(--ocean-600);
  background: var(--ocean-50);
  padding: 4px 12px;
  border-radius: 20px;
}

.leaderboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.leaderboard-empty-illustration {
  text-align: center;
  padding: 60px 20px;
}

.leaderboard-empty-illustration .trophy-icon {
  font-size: 72px;
  margin-bottom: 16px;
  animation: trophyFloat 3s ease-in-out infinite;
}

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

/* ─── About Section ─── */
.about-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--ocean-900) 0%, var(--sky-900) 100%);
  color: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.about-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: var(--transition);
  text-align: center;
}

.about-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
}

.about-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.about-card h3 {
  font-family: 'Noto Serif SC', serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.about-card p {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
}

.about-slogan {
  text-align: center;
  padding: 32px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.about-slogan p {
  font-family: 'Noto Serif SC', serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.05em;
}

.about-slogan-sub {
  font-size: 14px !important;
  color: rgba(255,255,255,0.5) !important;
  margin-top: 8px !important;
  font-weight: 300 !important;
  letter-spacing: 0.15em !important;
}

/* ─── Modal ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: rgba(15,23,42,0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px) scale(0.95);
  transition: var(--transition);
  position: relative;
}

.modal-wide {
  max-width: 900px;
}

.modal-overlay.active .modal {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: var(--sky-100);
  color: var(--sky-500);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
  z-index: 10;
}

.modal-close:hover {
  background: var(--sky-200);
  color: var(--sky-700);
}

.modal-title {
  font-family: 'Noto Serif SC', serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--sky-900);
  margin-bottom: 24px;
}

/* ─── Upload Rules ─── */
.upload-rules {
  background: var(--ocean-50);
  border: 1px solid var(--ocean-100);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 24px;
}

.upload-rules p {
  font-size: 13px;
  font-weight: 600;
  color: var(--ocean-700);
  margin-bottom: 8px;
}

.upload-rules ul {
  list-style: none;
  padding: 0;
}

.upload-rules li {
  font-size: 12px;
  color: var(--sky-600);
  padding: 3px 0;
  padding-left: 16px;
  position: relative;
}

.upload-rules li::before {
  content: '·';
  position: absolute;
  left: 4px;
  font-weight: bold;
  color: var(--ocean-400);
}

/* ─── Form ─── */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--sky-700);
  margin-bottom: 8px;
}

.form-input, .form-select {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  border: 2px solid var(--sky-200);
  border-radius: var(--radius-sm);
  background: var(--sky-50);
  color: var(--sky-800);
  transition: var(--transition);
  font-family: inherit;
  outline: none;
}

.form-input:focus, .form-select:focus {
  border-color: var(--ocean-400);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(14,165,233,0.1);
}

/* ─── Shooting Tags (checkbox pills) ─── */
.shooting-tags-select {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.shooting-tag-item {
  position: relative;
}

.shooting-tag-item input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.shooting-tag-label {
  display: inline-block;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 500;
  color: var(--sky-600);
  background: var(--sky-100);
  border: 2px solid var(--sky-200);
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.shooting-tag-label:hover {
  border-color: var(--ocean-300);
  background: var(--ocean-50);
}

.shooting-tag-item input:checked + .shooting-tag-label {
  background: var(--ocean-500);
  color: var(--white);
  border-color: var(--ocean-500);
  box-shadow: 0 2px 8px rgba(14,165,233,0.3);
}

/* ─── Upload Zone ─── */
.upload-zone {
  border: 2px dashed var(--sky-300);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  min-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--ocean-400);
  background: var(--ocean-50);
}

.upload-zone-content {
  color: var(--sky-400);
}

.upload-icon {
  font-size: 40px;
  margin-bottom: 8px;
}

.upload-zone-content p {
  font-size: 15px;
  font-weight: 500;
  color: var(--sky-600);
  margin-bottom: 4px;
}

.upload-zone-content span {
  font-size: 12px;
}

.upload-preview {
  max-width: 100%;
  max-height: 240px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

/* ─── Preview Modal ─── */
.preview-modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  max-width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  transform: translateY(20px) scale(0.95);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.modal-overlay.active .preview-modal {
  transform: translateY(0) scale(1);
}

.preview-image {
  max-width: 90vw;
  max-height: 70vh;
  object-fit: contain;
  background: var(--sky-900);
}

.preview-info {
  padding: 20px 24px;
  background: var(--white);
  border-top: 1px solid var(--sky-200);
}

.preview-info .card-title {
  font-size: 18px;
  margin-bottom: 4px;
}

.preview-info .card-meta {
  margin-top: 8px;
}

/* ─── Toast ─── */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 600;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 24px;
  background: var(--sky-800);
  color: var(--white);
  border-radius: var(--radius-sm);
  font-size: 14px;
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
  max-width: 360px;
}

.toast.success { background: #059669; }
.toast.error { background: #dc2626; }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
  from { opacity: 1; }
  to { opacity: 0; transform: translateX(40px); }
}

/* ─── Footer ─── */
.footer {
  text-align: center;
  padding: 40px 20px;
  background: var(--sky-900);
  color: var(--sky-400);
  font-size: 14px;
}

.footer-sub {
  margin-top: 4px;
  font-size: 12px;
  color: var(--sky-600);
}

.footer-copy {
  margin-top: 12px;
  font-size: 11px;
  color: var(--sky-700);
}

/* ─── Loading Skeleton ─── */
.skeleton {
  background: linear-gradient(90deg, var(--sky-200) 25%, var(--sky-100) 50%, var(--sky-200) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ─── Image Card Enhancements ─── */
.image-card .card-img-wrap::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: linear-gradient(transparent, rgba(0,0,0,0.15));
  pointer-events: none;
  opacity: 0;
  transition: var(--transition);
}

.image-card:hover .card-img-wrap::after {
  opacity: 1;
}

.card-img-wrap .card-zoom-icon {
  position: absolute;
  bottom: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.9);
  border-radius: 50%;
  font-size: 14px;
  opacity: 0;
  transform: translateY(8px);
  transition: var(--transition);
  pointer-events: none;
}

.image-card:hover .card-zoom-icon {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Floating action button (mobile upload) ─── */
.fab-upload {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--ocean-500), var(--ocean-700));
  color: var(--white);
  font-size: 24px;
  border: none;
  box-shadow: 0 4px 20px rgba(14,165,233,0.4);
  cursor: pointer;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.fab-upload:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 25px rgba(14,165,233,0.5);
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .nav { padding: 12px 16px; }
  .nav-links { display: none; }
  .nav-actions { display: none; }
  .nav-menu-btn { display: flex; }

  .hero-stats {
    flex-direction: row;
    gap: 16px;
    padding: 14px 20px;
    border-radius: 16px;
  }

  .stat { flex-direction: row; gap: 6px; align-items: baseline; }
  .stat-num { font-size: 20px; }
  .stat-label { font-size: 12px; }
  .stat-divider { width: 1px; height: 28px; }

  .spot-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .spot-card-img, .spot-card-img-placeholder { height: 120px; }
  .spot-card-body { padding: 12px; }
  .spot-card-name { font-size: 14px; }
  .spot-card-desc { font-size: 12px; margin-bottom: 6px; -webkit-line-clamp: 1; }
  .spot-card-tags { gap: 4px; }
  .tag-pill { font-size: 10px; padding: 2px 7px; }
  .spot-card-footer { padding: 0 12px 10px; }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .image-card .card-img-wrap {
    aspect-ratio: 1;
  }

  .card-body { padding: 10px 12px; }
  .card-title { font-size: 13px; margin-bottom: 4px; }
  .card-meta { flex-wrap: wrap; gap: 4px; }
  .card-category { font-size: 11px; padding: 2px 8px; }
  .card-uploader { font-size: 11px; }
  .card-actions { padding: 0 12px 10px; }
  .vote-btn { padding: 6px 12px; font-size: 13px; gap: 4px; }
  .vote-btn .vote-icon { font-size: 15px; }
  .vote-count { font-size: 11px; }

  .leaderboard-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .section-title { font-size: 24px; }
  .section-desc { font-size: 13px; }

  .modal { padding: 24px; margin: 10px; }
  .modal-wide { max-width: 100%; }
  .modal-title { font-size: 20px; }

  .hero-wave svg { height: 50px; }

  .fab-upload { display: flex; }

  .about-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .about-card { padding: 20px 16px; }
  .about-icon { font-size: 32px; }
  .about-card h3 { font-size: 15px; }
  .about-card p { font-size: 12px; }
  .about-slogan p { font-size: 20px; }

  .shooting-tags-select { gap: 6px; }
  .shooting-tag-label { padding: 5px 10px; font-size: 11px; }
}

@media (max-width: 480px) {
  .hero-stats {
    gap: 12px;
    padding: 12px 16px;
  }

  .stat-num { font-size: 18px; }

  .gallery-sort {
    width: 100%;
    justify-content: center;
  }

  .toast-container {
    top: auto;
    bottom: 24px;
    right: 12px;
    left: 12px;
  }

  .toast {
    max-width: 100%;
  }

  .spot-cards {
    grid-template-columns: 1fr;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) {
  .fab-upload { display: none; }
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--sky-100); }
::-webkit-scrollbar-thumb { background: var(--sky-300); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--sky-400); }