/* Layout styles */
:root {
  /* Light Theme - Minimalist/Commercial */
  --primary-color: #18181b; /* Zinc 900 */
  --primary-hover: #27272a;
  --bg-color: #ffffff;
  --text-color: #18181b;
  --text-secondary: #71717a;
  --shadow-color: rgba(0, 0, 0, 0.05);
  --border-color: #e4e4e7;
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.5);
}

/* Dark Theme */
body.dark {
  --primary-color: #ffffff;
  --primary-hover: #e4e4e7;
  --bg-color: #09090b; /* Zinc 950 */
  --text-color: #f4f4f5; /* Zinc 100 */
  --text-secondary: #a1a1aa;
  --shadow-color: rgba(0, 0, 0, 0.3);
  --border-color: #27272a;
  --glass-bg: rgba(9, 9, 11, 0.85);
  --glass-border: rgba(255, 255, 255, 0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0;
  padding: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s, color 0.3s;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

header {
  width: 100%;
  background-color: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-color);
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: transform 0.3s ease;
}

header h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

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

.header-buttons {
  display: flex;
  align-items: center;
  gap: 16px;
}

header button {
  background: none;
  border: none;
  color: var(--text-color);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: opacity 0.2s;
}

header button:hover {
  opacity: 0.7;
}

/* Icons */
header button img, header a img {
  width: 20px;
  height: 20px;
  display: block;
}

/* Footer */
footer {
  width: 100%;
  padding: 24px 0;
  margin-top: auto;
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
  opacity: 0;
  animation: fadeIn 1s forwards;
}

@keyframes fadeIn { to { opacity: 1; } }

/* Load More Button */
.load-more {
  padding: 12px 32px;
  margin: 40px 0;
  background-color: var(--primary-color);
  color: var(--bg-color); /* Inverted for contrast */
  border: none;
  border-radius: 24px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: transform 0.2s, opacity 0.2s;
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.load-more:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow-color);
}

.load-more:active { transform: scale(0.98); }

.load-more.loading {
  opacity: 0.7;
  cursor: wait;
}

/* Notification */
.notification-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.notification {
  background: var(--surface);
  color: var(--text-color);
  padding: 12px 16px;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  font-size: 14px;
  border: 1px solid var(--border-color);
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 600px) {
  header { padding: 12px 16px; }
  header h1 { font-size: 16px; }
}

/* Load Original Button */
.load-original-btn {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 10px 20px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
}
.load-original-btn:hover { background-color: rgba(255, 255, 255, 0.3); }