/* ── 汉韵华裳 · Hanfu Gallery ── */
/* 新中式风格：素雅底色 + 朱红点缀 + 留白之美 */

:root {
  --bg: #faf7f2;
  --card: #ffffff;
  --text: #3d3226;
  --text-light: #8c7b6b;
  --accent: #c23a2b;
  --accent-light: #e85d4a;
  --accent-dark: #8b1a1a;
  --border: #e8ddd0;
  --shadow: 0 2px 12px rgba(0,0,0,0.06);
  --gold: #b8860b;
  --navy: #1a1a2e;
  --font-serif: 'Noto Serif SC', 'STSong', 'Songti SC', 'SimSun', '宋体', serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --max-width: 1280px;
  --radius: 8px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Header ── */
.header {
  text-align: center;
  padding: 60px 20px 40px;
  background: linear-gradient(180deg, #2c1810 0%, #4a2c1a 60%, #faf7f2 100%);
  color: #fff;
}

.header h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-bottom: 8px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.header .subtitle {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  opacity: 0.8;
  letter-spacing: 0.1em;
}

.header .divider {
  width: 60px;
  height: 2px;
  background: var(--accent);
  margin: 16px auto;
  border-radius: 1px;
}

/* ── Category Tabs ── */
.categories {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 24px 20px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.cat-btn {
  padding: 8px 24px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-light);
  border-radius: 24px;
  cursor: pointer;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  transition: all var(--transition);
  white-space: nowrap;
}

.cat-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.cat-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ── Gallery Grid ── */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  padding: 0 20px 40px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.card-img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  display: block;
  background: #f5f0e8;
}

.card-body {
  padding: 16px;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.card-cat {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-top: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ── Lightbox ── */
.lightbox {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.92);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.lightbox.active { display: flex; }

.lightbox img {
  max-width: 90vw;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 4px;
}

.lightbox-info {
  color: #fff;
  text-align: center;
  margin-top: 16px;
  font-family: var(--font-serif);
}

.lightbox-info h3 {
  font-size: 1.3rem;
  margin-bottom: 4px;
}

.lightbox-close {
  position: absolute;
  top: 20px; right: 30px;
  font-size: 2rem;
  color: #fff;
  cursor: pointer;
  background: none;
  border: none;
  opacity: 0.7;
  transition: opacity var(--transition);
}

.lightbox-close:hover { opacity: 1; }

/* ── Footer ── */
.footer {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-light);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

/* ── Empty State ── */
.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-light);
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

/* ── Loading ── */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-light);
}

.spinner {
  display: inline-block;
  width: 30px;
  height: 30px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Responsive ── */
@media (max-width: 640px) {
  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
    padding: 0 12px 30px;
  }
  .card-img { height: 180px; }
  .header { padding: 40px 16px 24px; }
  .cat-btn { padding: 6px 16px; font-size: 0.85rem; }
}

/* ═══════════════════════════════════════════
   Admin Panel Styles
   ═══════════════════════════════════════════ */

.admin-body {
  background: #f5f0ea;
}

.admin-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 20px;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 2px solid var(--accent);
  margin-bottom: 24px;
}

.admin-header h1 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--accent-dark);
}

.btn {
  padding: 8px 20px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  font-family: var(--font-sans);
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover { background: var(--accent-dark); }

.btn-outline {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

.btn-danger {
  background: #dc3545;
  color: #fff;
}

.btn-danger:hover { background: #a71d2a; }

.btn-sm { padding: 4px 12px; font-size: 0.8rem; }

/* ── Login Form ── */
.login-box {
  max-width: 360px;
  margin: 80px auto;
  background: var(--card);
  padding: 40px 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}

.login-box h2 {
  font-family: var(--font-serif);
  margin-bottom: 24px;
  color: var(--accent-dark);
}

.form-group {
  margin-bottom: 16px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 4px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

/* ── Image List ── */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.admin-table th,
.admin-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.admin-table th {
  background: var(--accent-dark);
  color: #fff;
  font-weight: 500;
  font-size: 0.85rem;
}

.admin-table td { font-size: 0.9rem; }

.admin-table tr:hover { background: #fdf8f3; }

.thumb-preview {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: 4px;
}

.actions {
  display: flex;
  gap: 6px;
}

/* ── Upload Area ── */
.upload-section {
  background: var(--card);
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px 20px;
  text-align: center;
  margin-bottom: 24px;
  transition: all var(--transition);
  cursor: pointer;
}

.upload-section:hover,
.upload-section.dragover {
  border-color: var(--accent);
  background: #fdf5f3;
}

.upload-section .icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.upload-section p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* ── Modal ── */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 900;
  justify-content: center;
  align-items: center;
}

.modal-overlay.active { display: flex; }

.modal {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 480px;
  width: 90%;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.modal h3 {
  font-family: var(--font-serif);
  margin-bottom: 16px;
  color: var(--accent-dark);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 24px;
  border-radius: 6px;
  color: #fff;
  font-size: 0.9rem;
  z-index: 1100;
  animation: slideIn 0.3s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.toast.success { background: #2d8a4e; }
.toast.error { background: #c23a2b; }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.hidden { display: none !important; }