* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    --accent: #6c5ce7;
    --accent-hover: #5a4bd1;
    --card-bg: #ffffff;
    --card-shadow: 0 4px 20px rgba(0,0,0,0.08);
    --border-color: #e0e0e0;
    --gradient: linear-gradient(135deg, #6c5ce7, #a29bfe);
    --success: #00b894;
    --danger: #e17055;
    --navbar-bg: rgba(255,255,255,0.95);
    --footer-bg: #2d3436;
    --footer-text: #dfe6e9;
}
body.dark-mode {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --accent: #a29bfe;
    --accent-hover: #b8b2ff;
    --card-bg: #1e2a4a;
    --card-shadow: 0 4px 20px rgba(0,0,0,0.3);
    --border-color: #2d3561;
    --navbar-bg: rgba(26,26,46,0.95);
    --footer-bg: #0f0f23;
    --footer-text: #b0b0b0;
}
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background 0.3s, color 0.3s;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--navbar-bg);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}
.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}
.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a {
    color: var(--text-primary);
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 8px;
    transition: background 0.3s;
}
.nav-links a:hover, .nav-links a.active { background: var(--bg-secondary); color: var(--accent); }
.nav-links .admin-link { color: var(--accent); font-weight: 600; }
.nav-actions { display: flex; gap: 12px; align-items: center; }
.theme-btn, .hamburger {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.3s;
}
.theme-btn:hover, .hamburger:hover { background: var(--bg-secondary); }
.hamburger { display: none; }

/* Hero */
.hero {
    padding: 120px 20px 60px;
    text-align: center;
    background: var(--bg-secondary);
}
.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 30px;
}
.search-form {
    display: flex;
    max-width: 600px;
    margin: 0 auto 20px;
    gap: 8px;
}
.search-form input {
    flex: 1;
    padding: 14px 20px;
    border: 2px solid var(--border-color);
    border-radius: 30px;
    font-size: 1rem;
    background: var(--card-bg);
    color: var(--text-primary);
    transition: border 0.3s;
}
.search-form input:focus { border-color: var(--accent); outline: none; }
.search-form button {
    padding: 14px 28px;
    background: var(--gradient);
    border: none;
    border-radius: 30px;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}
.search-form button:hover { transform: scale(1.05); box-shadow: 0 4px 15px rgba(108,92,231,0.4); }
.filter-bar { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.filter-bar select {
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    background: var(--card-bg);
    color: var(--text-primary);
    cursor: pointer;
}

/* Grid */
.grid-section { padding: 60px 20px; }
.section-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
}
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}
.card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover { transform: translateY(-8px); box-shadow: 0 12px 40px rgba(108,92,231,0.15); }
.card-image { position: relative; height: 200px; overflow: hidden; }
.card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.card:hover .card-image img { transform: scale(1.05); }
.card-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--gradient);
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}
.card-body { padding: 20px; }
.card-body h3 { font-size: 1.2rem; margin-bottom: 8px; }
.card-body p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 12px; }
.card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.tag {
    background: var(--bg-secondary);
    color: var(--accent);
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
}
.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
}
.card-price { font-weight: 700; color: var(--accent); }
.card-rating, .card-views { color: var(--text-secondary); }
.card-actions { display: flex; gap: 8px; margin-top: 12px; }
.card-actions button {
    flex: 1;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--card-bg);
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.3s, color 0.3s;
    font-size: 0.9rem;
}
.card-actions button:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.no-results { text-align: center; padding: 60px; color: var(--text-secondary); font-size: 1.2rem; }

/* Stats */
.stats-section { padding: 60px 20px; background: var(--bg-secondary); }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 24px; }
.stat-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s;
}
.stat-card:hover { transform: translateY(-4px); }
.stat-card i { font-size: 2rem; color: var(--accent); margin-bottom: 12px; }
.stat-number { font-size: 2rem; font-weight: 700; color: var(--text-primary); }

/* Heatmap */
.heatmap-section { padding: 60px 20px; }
.heatmap {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(30px, 1fr));
    gap: 4px;
    max-width: 800px;
    margin: 0 auto;
}
.heatmap-cell {
    aspect-ratio: 1;
    border-radius: 4px;
    background: var(--bg-secondary);
    transition: background 0.3s;
    cursor: pointer;
}
.heatmap-cell[data-views] { background: color-mix(in srgb, var(--accent) calc(var(--data-views) / 100 * 100%), var(--bg-secondary)); }
.heatmap-cell:hover { opacity: 0.8; }

/* Admin */
.admin-main { padding-top: 80px; min-height: 100vh; }
.login-form {
    max-width: 400px;
    margin: 80px auto;
    background: var(--card-bg);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
}
.login-form h2 { margin-bottom: 24px; text-align: center; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; }
.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
}
.form-group textarea { resize: vertical; }
.btn-primary {
    width: 100%;
    padding: 14px;
    background: var(--gradient);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.3s;
}
.btn-primary:hover { opacity: 0.9; }
.btn-danger {
    padding: 6px 12px;
    background: var(--danger);
    color: #fff;
    border-radius: 6px;
    font-size: 0.9rem;
}
.admin-dashboard h1 { margin-bottom: 30px; }
.admin-section {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    margin-bottom: 30px;
}
.admin-section h2 { margin-bottom: 20px; font-size: 1.4rem; }
.admin-table-wrapper { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}
.admin-table th { background: var(--bg-secondary); font-weight: 600; }
.alert { padding: 12px 20px; border-radius: 8px; margin-bottom: 16px; }
.alert-success { background: #d4edda; color: #155724; }
.alert-error { background: #f8d7da; color: #721c24; }

/* Footer */
footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 40px 20px;
    text-align: center;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; margin-bottom: 20px; }
.footer-links a { color: var(--footer-text); }
.footer-links a:hover { color: var(--accent); }

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; width: 100%; background: var(--navbar-bg); padding: 20px; border-bottom: 1px solid var(--border-color); }
    .nav-links.active { display: flex; }
    .hamburger { display: block; }
    .hero h1 { font-size: 1.8rem; }
    .search-form { flex-direction: column; }
    .filter-bar { flex-direction: column; align-items: stretch; }
    .card-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
}

/* Static pages common */
.page-content { padding: 120px 20px 60px; max-width: 800px; margin: 0 auto; }
.page-content h1 { font-size: 2rem; margin-bottom: 20px; }
.page-content p { margin-bottom: 16px; color: var(--text-secondary); }