:root {
  /* glass defaults (will be overridden by theme files) */
  --bg-color: #0a0a0a;
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --text-color: #ffffff;
  --primary: #7b68ee;
  --blur: 10px;
  --radius: 16px;
  --spacing: 16px;
  --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s, color 0.3s;
}

/* Glass components */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--spacing);
  margin-bottom: var(--spacing);
}

/* Layout */
.app-container {
  max-width: 480px;
  margin: 0 auto;
  padding: var(--spacing);
}

.nav-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-around;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--blur));
  border-top: 1px solid var(--glass-border);
  padding: 12px;
  z-index: 100;
}

.nav-item {
  color: var(--text-color);
  text-decoration: none;
  opacity: 0.7;
  font-size: 14px;
}
.nav-item.active {
  opacity: 1;
  color: var(--primary);
}

/* Post */
.post-image {
  width: 100%;
  border-radius: var(--radius);
  margin-bottom: 8px;
}

.post-actions {
  display: flex;
  gap: 16px;
  margin: 8px 0;
}

button {
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 16px;
  cursor: pointer;
  opacity: 0.8;
}
button:hover {
  opacity: 1;
}

/* Admin panel */
.admin-panel {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-color);
  overflow-y: auto;
  padding: var(--spacing);
  z-index: 200;
}