/* ============================================================
   MV 妆造图鉴 — 全局样式
   设计基调：暗色调、时尚、渐变高光
   ============================================================ */

/* ── 变量 ── */
:root {
  --bg: #0b0b10;
  --bg2: #141420;
  --bg3: #1e1e2e;
  --surface: #1a1a28;
  --surface2: #252538;
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.18);
  --text: #f0eeff;
  --text-muted: #8886aa;
  --accent: #c97bff;
  --accent2: #ff6eb8;
  --accent-grad: linear-gradient(135deg, #c97bff 0%, #ff6eb8 100%);
  --nav-h: 60px;
  --sub-nav-h: 44px;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.4);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; color: inherit; font: inherit; }

/* ── 滚动条 ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ════════════════════════════════════════
   顶部导航
════════════════════════════════════════ */
#navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  background: rgba(11, 11, 16, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-main {
  display: flex;
  align-items: center;
  height: var(--nav-h);
  padding: 0 24px;
  gap: 8px;
}

#site-logo {
  font-size: 18px;
  font-weight: 700;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
  margin-right: 16px;
  flex-shrink: 0;
  cursor: pointer;
  letter-spacing: 0.04em;
}

.nav-nat-tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.nav-nat-btn {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 14px;
  color: var(--text-muted);
  transition: var(--transition);
  font-weight: 500;
}
.nav-nat-btn:hover { color: var(--text); background: var(--surface2); }
.nav-nat-btn.active {
  background: var(--accent-grad);
  color: #fff;
  -webkit-text-fill-color: #fff;
}

/* 子导航 (女团/男团) */
#sub-nav {
  height: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 8px;
  border-top: 1px solid transparent;
  transition: height var(--transition), border-color var(--transition), padding var(--transition);
}
#sub-nav.visible {
  height: var(--sub-nav-h);
  border-color: var(--border);
}

.nav-type-btn {
  padding: 4px 16px;
  border-radius: 16px;
  font-size: 13px;
  color: var(--text-muted);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.nav-type-btn:hover { color: var(--text); border-color: var(--border-hover); }
.nav-type-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(201,123,255,0.12);
}

/* ── 面包屑 ── */
#breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  font-size: 13px;
  color: var(--text-muted);
}
.crumb {
  padding: 2px 6px;
  border-radius: 4px;
  transition: var(--transition);
}
button.crumb:hover { color: var(--accent); background: rgba(201,123,255,0.1); }
.crumb-active { color: var(--text); }
.crumb-sep { opacity: 0.4; }

/* ════════════════════════════════════════
   主内容区
════════════════════════════════════════ */
#main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 20px 80px;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text);
}
.section-title .accent { background: var(--accent-grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ── 视图切换动画 ── */
.view { display: none; animation: fadeUp 0.35s ease both; }
.view.active { display: block; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ════════════════════════════════════════
   HOME 视图
════════════════════════════════════════ */
.home-hero {
  text-align: center;
  padding: 60px 20px 48px;
}
.hero-title {
  font-size: clamp(32px, 6vw, 64px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 12px;
}
.hero-sub {
  color: var(--text-muted);
  font-size: 16px;
}

.nat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}

.nat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 36px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}
.nat-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(201,123,255,0.2);
}
.nat-emoji { font-size: 36px; }
.nat-name  { font-size: 20px; font-weight: 700; }
.nat-count { font-size: 12px; color: var(--text-muted); }

/* ════════════════════════════════════════
   GROUPS 视图
════════════════════════════════════════ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}

.group-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: var(--transition);
  text-align: left;
}
.group-card:hover {
  transform: translateY(-5px);
  border-color: var(--group-color, var(--accent));
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
}

.group-card-img-wrap {
  position: relative;
  aspect-ratio: 3/2;
  overflow: hidden;
  background: var(--bg3);
}
.group-card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.group-card:hover .group-card-img-wrap img { transform: scale(1.06); }
.group-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.5) 0%, transparent 60%);
}

.group-card-info {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.group-card-name { font-size: 16px; font-weight: 700; }
.group-card-meta { font-size: 12px; color: var(--text-muted); }

/* ════════════════════════════════════════
   MEMBERS 视图
════════════════════════════════════════ */
.members-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 20px;
}

.member-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 24px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
  text-align: center;
}
.member-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(201,123,255,0.18);
}

.member-avatar-wrap {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--border);
  background: var(--bg3);
  transition: border-color var(--transition);
}
.member-card:hover .member-avatar-wrap { border-color: var(--accent); }
.member-avatar-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.member-info { display: flex; flex-direction: column; gap: 4px; }
.member-name { font-size: 16px; font-weight: 700; }
.member-mv-count { font-size: 12px; color: var(--text-muted); }

/* ════════════════════════════════════════
   LOOKS 视图
════════════════════════════════════════ */
.looks-header { margin-bottom: 20px; }
.member-title { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.group-badge {
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 12px;
  color: #fff;
  letter-spacing: 0.04em;
}

/* MV Tabs */
.mv-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.mv-tab {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 8px 18px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  transition: var(--transition);
  min-width: 100px;
}
.mv-tab:hover { border-color: var(--accent); }
.mv-tab.active {
  border-color: var(--accent);
  background: rgba(201,123,255,0.12);
}
.mv-tab-name { font-size: 14px; font-weight: 600; }
.mv-tab-year { font-size: 11px; color: var(--text-muted); }

/* Looks Grid */
.looks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.look-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.look-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.look-img-wrap {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--bg3);
}
.look-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.look-card:hover .look-img-wrap img { transform: scale(1.04); }

.look-hover-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  background: rgba(0,0,0,0.5);
  opacity: 0;
  transition: opacity var(--transition);
}
.look-card:hover .look-hover-icon { opacity: 1; }

.look-meta {
  padding: 12px 14px 8px;
}
.look-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-size: 11px;
  padding: 2px 9px;
  border-radius: 10px;
  background: rgba(201,123,255,0.15);
  color: var(--accent);
  border: 1px solid rgba(201,123,255,0.3);
  font-weight: 500;
}
.look-desc {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── 色板 ── */
.palette-slot { padding: 10px 14px 14px; }
.palette {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.swatch {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  cursor: pointer;
  flex-shrink: 0;
  border: 2px solid rgba(255,255,255,0.1);
  transition: transform var(--transition), border-color var(--transition);
  overflow: visible;
}
.swatch:hover { transform: scale(1.18); border-color: rgba(255,255,255,0.5); z-index: 2; }
.swatch.copied::after {
  content: "✓";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  background: rgba(0,0,0,0.45);
  border-radius: 6px;
}

.swatch-code {
  position: absolute;
  bottom: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  font-family: monospace;
  white-space: nowrap;
  padding: 2px 5px;
  background: rgba(0,0,0,0.85);
  border-radius: 4px;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition);
  color: #fff !important;
}
.swatch:hover .swatch-code { opacity: 1; }

/* ════════════════════════════════════════
   图片加载失败占位
════════════════════════════════════════ */
.img-error {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg3);
  color: var(--text-muted);
  font-size: 12px;
}
.img-error::after { content: "图片未加载"; }

/* ════════════════════════════════════════
   空状态
════════════════════════════════════════ */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-muted);
  font-size: 15px;
}

/* ════════════════════════════════════════
   Lightbox
════════════════════════════════════════ */
#lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease;
}
#lightbox.open { opacity: 1; }

.lb-overlay {
  position: absolute;
  inset: 0;
  background: rgba(5, 5, 10, 0.92);
  backdrop-filter: blur(8px);
}

.lb-content {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 24px;
  max-width: 90vw;
  max-height: 90vh;
  align-items: flex-start;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(0,0,0,0.7);
  overflow: auto;
}

.lb-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--surface2);
  color: var(--text-muted);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 2;
}
.lb-close:hover { background: var(--accent); color: #fff; }

.lb-img-wrap {
  flex-shrink: 0;
  max-height: calc(90vh - 80px);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg3);
}
.lb-img-wrap img {
  max-height: calc(90vh - 80px);
  max-width: 55vw;
  object-fit: contain;
  border-radius: var(--radius);
}

.lb-info {
  min-width: 180px;
  max-width: 260px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 8px;
}
.lb-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.lb-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}
.lb-palette { display: flex; flex-wrap: wrap; gap: 8px; }
.lb-palette .swatch { width: 44px; height: 44px; border-radius: 10px; }

/* ════════════════════════════════════════
   响应式
════════════════════════════════════════ */
@media (max-width: 768px) {
  .nav-main { padding: 0 14px; }
  #main { padding: 16px 14px 60px; }
  .looks-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
  .lb-content { flex-direction: column; max-width: 95vw; }
  .lb-img-wrap img { max-width: 80vw; max-height: 50vh; }
  .lb-info { max-width: 100%; }
}
@media (max-width: 480px) {
  .nat-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid, .members-grid { grid-template-columns: repeat(2, 1fr); }
  .looks-grid { grid-template-columns: 1fr; }
}