/* Base styles */
:root {
  --primary-color: #1a1a2e;
  --secondary-color: #0f3460;
  --accent-color: #e94560;
  --nav-accent: #f9e9de;
  --background-color: #f8f9fa;
  --card-color: #ffffff;
  --text-color: #333;
  --border-color: #e0e0e0;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --transition: all 0.3s ease;
  --radius: 8px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  max-width: 100%;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--accent-color);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background-color: #dce1e7;
  color: var(--text-color);
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 100;
  border-radius: var(--radius);
  margin: 10px auto;
  width: 100%;
  max-width: 1300px;
}

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

nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav li {
  margin-right: 20px;
  position: relative;
}

nav a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  font-size: 1.2rem;
  padding: 5px 0;
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-color);
  transition: var(--transition);
}

nav a:hover::after {
  width: 100%;
}

/* Dropdown menu */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-content {
  display: none;
  position: absolute;
  right: 0;
  background-color: var(--card-color);
  min-width: 180px;
  box-shadow: var(--shadow);
  z-index: 100;
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 10px;
  padding: 5px 0;
}

.dropdown-content a {
  color: var(--text-color);
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  text-align: left;
  transition: var(--transition);
  font-size: 1.1rem;
}

.dropdown-content a:hover {
  background-color: rgba(0, 0, 0, 0.03);
}

.dropdown:hover .dropdown-content {
  display: block;
}

/* Fix for dropdown disappearing too quickly */
.dropdown-content:hover {
  display: block;
}

.dropdown .dropdown-button {
  background: none;
  color: var(--text-color);
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  padding: 5px 10px;
  display: flex;
  align-items: center;
  font-weight: 500;
}

.dropdown .dropdown-button:after {
  content: "▼";
  font-size: 0.7em;
  margin-left: 8px;
  transition: var(--transition);
}

.dropdown:hover .dropdown-button:after {
  transform: rotate(180deg);
}

main {
  padding: 2rem 0;
}

footer {
  background-color: #dce1e7;
  color: var(--text-color);
  padding: 2rem 0;
  margin: 3rem auto 10px auto;
  text-align: center;
  border-top: 1px solid var(--border-color);
  border-radius: var(--radius);
  width: 100%;
  max-width: 1300px;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

/* Header with sorting controls */
.header-container, .album-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2rem;
}

.album-title-container {
  flex: 1;
}

.album-description {
  margin-top: 0.5rem;
  color: #666;
  max-width: 800px;
}

.sort-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.sort-label {
  color: #777;
  margin-right: 4px;
}

.sort-btn {
  color: var(--text-color);
  background-color: var(--card-color);
  padding: 6px 12px;
  border-radius: var(--radius);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.85rem;
  border: 1px solid var(--border-color);
}

.sort-btn:hover {
  background-color: var(--secondary-color);
  color: white;
  text-decoration: none;
}

.sort-btn.active {
  background-color: var(--secondary-color);
  color: white;
  border-color: var(--secondary-color);
}

/* Back link */
.back-link {
  display: inline-flex;
  align-items: center;
  margin-top: 1rem;
  color: var(--secondary-color);
  font-weight: 500;
  transition: var(--transition);
}

.back-link:hover {
  color: var(--accent-color);
  transform: translateX(-5px);
}

/* Albums grid */
.albums-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 25px;
  margin-top: 2rem;
}

.album-card {
  background-color: var(--card-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow);
  height: 100%;
}

.album-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
}

.album-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: var(--transition);
}

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

.album-card-content {
  padding: 20px;
}

.album-card h3 {
  margin-bottom: 10px;
  color: var(--primary-color);
}

.album-card p {
  color: #666;
  font-size: 0.9rem;
}

/* Photos grid */
.photos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 2rem;
}

.photo-thumbnail {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 1/1;
  background-color: var(--card-color);
  box-shadow: var(--shadow);
}

.photo-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

.photo-thumbnail:hover img {
  transform: scale(1.08);
}

/* Photo detail view */
.photo-header {
  margin-bottom: 2rem;
}

.photo-detail {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 30px;
  margin-top: 2rem;
}

.photo-main {
  text-align: center;
}

.photo-main img {
  max-width: 100%;
  max-height: 80vh;
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

.photo-description {
  margin-top: 1.5rem;
  color: #666;
  padding: 0 1rem;
}

.photo-info {
  display: flex;
  flex-direction: column;
}

.photo-metadata {
  background-color: var(--card-color);
  padding: 25px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.photo-metadata h3 {
  margin-bottom: 20px;
  color: var(--primary-color);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
}

.photo-metadata dl {
  display: grid;
  grid-template-columns: 40% 1fr;
  gap: 12px;
}

.photo-metadata dt {
  font-weight: 600;
  color: #555;
}

.photo-metadata dd {
  color: var(--text-color);
}

.photo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 15px;
}

.tag {
  background-color: rgba(15, 52, 96, 0.1);
  color: var(--secondary-color);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition);
}

.tag:hover {
  background-color: var(--secondary-color);
  color: white;
}

.photo-actions {
  margin-top: 20px;
}

/* Forms */
.form-container {
  max-width: 500px;
  margin: 0 auto;
  background-color: var(--card-color);
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.form-container h1 {
  margin-bottom: 1.5rem;
  color: var(--primary-color);
  text-align: center;
}

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

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #555;
}

input[type="text"],
input[type="password"],
input[type="email"],
textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: var(--transition);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
textarea:focus {
  border-color: var(--secondary-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(15, 52, 96, 0.1);
}

button, .btn {
  background-color: var(--secondary-color);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: var(--transition);
  display: inline-block;
  text-align: center;
}

button:hover, .btn:hover {
  background-color: var(--primary-color);
  transform: translateY(-2px);
}

.error-message {
  color: var(--accent-color);
  margin-bottom: 20px;
  padding: 10px;
  background-color: rgba(233, 69, 96, 0.1);
  border-radius: var(--radius);
  font-size: 0.9rem;
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .photo-detail {
    grid-template-columns: 1fr;
  }
  
  .photo-main {
    margin-bottom: 1.5rem;
  }
}

@media (max-width: 768px) {
  .albums-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
  
  .photos-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  }
  
  .header-container, .album-header {
    flex-direction: column;
  }
  
  .sort-controls {
    margin-top: 1rem;
  }
}

@media (max-width: 480px) {
  .albums-grid {
    grid-template-columns: 1fr;
  }
  
  .photos-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }
  
  nav ul {
    flex-direction: column;
  }
  
  nav li {
    margin-right: 0;
    margin-bottom: 10px;
  }
  
  .photo-metadata dl {
    grid-template-columns: 1fr;
  }
  
  .photo-metadata dt {
    margin-bottom: -5px;
  }
}

/* Message styles */
.no-albums, .no-photos {
  padding: 3rem;
  text-align: center;
  background-color: var(--card-color);
  border-radius: var(--radius);
  color: #666;
  grid-column: 1 / -1;
  box-shadow: var(--shadow);
}