/* 主样式表 - 高级简约风格 */

:root {
  --color-dark: #121212;
  --color-darker: #0a0a0a;
  --color-medium: #2d2d2d;
  --color-light-gray: #757575;
  --color-gray: #454545;
  --color-white: #ffffff;
  --color-off-white: #f5f5f5;
  --color-brown: #8b7355;
  --color-light-brown: #a89078;
  --color-accent: #d4c0a1;
  --border-radius: 8px;
  --border-radius-lg: 16px;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--color-dark);
  color: var(--color-white);
  line-height: 1.6;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 500;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
  letter-spacing: -0.5px;
}

h2 {
  font-size: 2rem;
  letter-spacing: -0.3px;
}

p {
  margin-bottom: 1rem;
  color: var(--color-light-gray);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  opacity: 0.8;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 24px;
  background-color: var(--color-medium);
  color: var(--color-white);
  border: none;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.btn:hover {
  background-color: var(--color-gray);
}

.btn-primary {
  background-color: var(--color-brown);
}

.btn-primary:hover {
  background-color: var(--color-light-brown);
}

.btn-secondary {
  background-color: transparent;
  border: 1px solid var(--color-light-gray);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background-color: var(--color-medium);
  border: 1px solid var(--color-gray);
  border-radius: var(--border-radius);
  color: var(--color-white);
  font-size: 1rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(212, 192, 161, 0.2);
}

label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--color-light-gray);
  font-size: 0.9rem;
}

/* Cards */
.card {
  background-color: var(--color-medium);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

/* Header */
.header {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-gray);
  margin-bottom: 40px;
}

.header-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-menu {
  display: flex;
  gap: 24px;
  list-style: none;
}

.nav-link {
  color: var(--color-light-gray);
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-white);
}

/* Photo Gallery */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.photo-item {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  aspect-ratio: 3/2;
  cursor: pointer;
  transition: var(--transition);
}

.photo-item img, .photo-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.photo-item:hover img, .photo-item:hover video {
  transform: scale(1.05);
}

.photo-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: var(--transition);
}

.photo-item:hover .photo-overlay {
  opacity: 1;
}

.photo-selected {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--color-accent);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--color-dark);
  font-size: 12px;
}

.photo-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
  cursor: pointer;
  z-index: 2;
}

.photo-item:hover video {
  transform: scale(1.05);
}

.photo-item .photo-overlay {
  z-index: 3;
}

.photo-item:has(video) .photo-overlay {
  opacity: 0;
}

.photo-item:has(video):hover .photo-overlay {
  opacity: 1;
}

/* Projects */
.project-card {
  background-color: var(--color-medium);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.project-title {
  margin-bottom: 8px;
  color: var(--color-white);
}

.project-meta {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
  color: var(--color-light-gray);
  font-size: 0.9rem;
}

.project-actions {
  display: flex;
  gap: 12px;
}

/* Login & Forms */
.auth-container {
  max-width: 400px;
  margin: 80px auto;
}

.auth-card {
  background-color: var(--color-medium);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}

.auth-header {
  text-align: center;
  margin-bottom: 30px;
}

.auth-footer {
  text-align: center;
  margin-top: 20px;
  color: var(--color-light-gray);
  font-size: 0.9rem;
}

/* Flash Messages */
.flash-messages {
  margin-bottom: 24px;
}

.flash-message {
  padding: 12px 16px;
  border-radius: var(--border-radius);
  margin-bottom: 12px;
}

.flash-success {
  background-color: rgba(47, 133, 90, 0.1);
  color: #2f855a;
  border: 1px solid rgba(47, 133, 90, 0.2);
}

.flash-warning {
  background-color: rgba(221, 144, 61, 0.1);
  color: #dd903d;
  border: 1px solid rgba(221, 144, 61, 0.2);
}

.flash-danger {
  background-color: rgba(229, 62, 62, 0.1);
  color: #e53e3e;
  border: 1px solid rgba(229, 62, 62, 0.2);
}

/* Admin Dashboard */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.stat-card {
  background-color: var(--color-medium);
  border-radius: var(--border-radius);
  padding: 24px;
  text-align: center;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.stat-label {
  color: var(--color-light-gray);
  font-size: 0.9rem;
}

/* Selections */
.selection-item {
  display: flex;
  align-items: center;
  padding: 16px;
  border-radius: var(--border-radius);
  background-color: var(--color-medium);
  margin-bottom: 16px;
}

.selection-info {
  flex: 1;
}

.selection-email {
  font-weight: 500;
  margin-bottom: 4px;
}

.selection-meta {
  color: var(--color-light-gray);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }
  
  .navbar {
    flex-direction: column;
    gap: 16px;
  }
  
  .project-meta {
    flex-direction: column;
    gap: 8px;
  }
}