* { margin: 0; padding: 0; box-sizing: border-box; }
:root { --primary: #2563eb; --primary-dark: #1d4ed8; --bg: #ffffff; --bg-secondary: #f8fafc; --text: #1e293b; --text-light: #64748b; --border: #e2e8f0; --card-bg: #ffffff; --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1); --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1); --radius: 16px; --radius-sm: 8px; --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
[data-mode="dark"] { --bg: #0f172a; --bg-secondary: #1e293b; --text: #e2e8f0; --text-light: #94a3b8; --border: #334155; --card-bg: #1e293b; --shadow: 0 4px 6px -1px rgba(0,0,0,0.3), 0 2px 4px -2px rgba(0,0,0,0.3); --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.3), 0 4px 6px -4px rgba(0,0,0,0.3); }
[data-theme="fashion"] { --primary: #ec4899; --primary-dark: #db2777; }
[data-theme="food"] { --primary: #f59e0b; --primary-dark: #d97706; }
[data-theme="tech"] { --primary: #2563eb; --primary-dark: #1d4ed8; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; transition: var(--transition); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.header { background: var(--card-bg); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 1000; backdrop-filter: blur(10px); }
.header .container { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; }
.logo a { font-size: 1.5rem; font-weight: 800; color: var(--primary); text-decoration: none; }
.logo i { margin-right: 8px; }
.nav { display: flex; align-items: center; gap: 24px; }
.nav ul { list-style: none; display: flex; gap: 16px; }
.nav ul li a { color: var(--text); text-decoration: none; padding: 8px 12px; border-radius: var(--radius-sm); transition: var(--transition); }
.nav ul li a:hover { background: var(--bg-secondary); color: var(--primary); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.icon-btn { background: none; border: none; color: var(--text); font-size: 1.2rem; cursor: pointer; padding: 8px; border-radius: 50%; transition: var(--transition); }
.icon-btn:hover { background: var(--bg-secondary); color: var(--primary); }
.hamburger { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text); cursor: pointer; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; border-radius: var(--radius-sm); font-weight: 600; text-decoration: none; transition: var(--transition); border: none; cursor: pointer; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-secondary { background: var(--bg-secondary); color: var(--text); }
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: #ef4444; color: white; }
.btn-danger:hover { background: #dc2626; }
.btn-sm { padding: 6px 12px; font-size: 0.875rem; }
.btn-block { width: 100%; justify-content: center; }
.hero { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: white; padding: 80px 0; text-align: center; }
.hero h1 { font-size: 2.5rem; margin-bottom: 16px; }
.hero p { font-size: 1.2rem; opacity: 0.9; margin-bottom: 32px; }
.hero-search { display: flex; max-width: 500px; margin: 0 auto; gap: 0; }
.hero-search input { flex: 1; padding: 14px 20px; border: none; border-radius: var(--radius-sm) 0 0 var(--radius-sm); font-size: 1rem; outline: none; }
.hero-search button { padding: 14px 24px; background: var(--text); color: white; border: none; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; cursor: pointer; transition: var(--transition); }
.hero-search button:hover { background: var(--primary); }
.filters { background: var(--card-bg); border-bottom: 1px solid var(--border); padding: 16px 0; }
.filter-group { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.filter-group label { font-weight: 600; color: var(--text-light); font-size: 0.9rem; }
.filter-group select { padding: 8px 12px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg); color: var(--text); font-size: 0.9rem; cursor: pointer; }
.main-content { padding: 40px 0; }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.blog-card { background: var(--card-bg); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); }
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-image { position: relative; height: 200px; overflow: hidden; }
.card-image img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.blog-card:hover .card-image img { transform: scale(1.05); }
.card-category { position: absolute; top: 12px; left: 12px; background: var(--primary); color: white; 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 h3 a { color: var(--text); text-decoration: none; transition: var(--transition); }
.card-body h3 a:hover { color: var(--primary); }
.card-body p { color: var(--text-light); font-size: 0.9rem; margin-bottom: 12px; }
.card-meta { display: flex; gap: 16px; font-size: 0.85rem; color: var(--text-light); margin-bottom: 12px; }
.card-meta i { margin-right: 4px; }
.card-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tag { background: var(--bg-secondary); color: var(--primary); padding: 4px 10px; border-radius: 20px; font-size: 0.8rem; font-weight: 500; }
.stats-section { background: var(--bg-secondary); padding: 60px 0; }
.stats-section h2 { text-align: center; margin-bottom: 40px; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 24px; margin-bottom: 40px; }
.stat-card { background: var(--card-bg); padding: 24px; border-radius: var(--radius); text-align: center; box-shadow: var(--shadow); }
.stat-card i { font-size: 2rem; color: var(--primary); margin-bottom: 12px; }
.stat-number { display: block; font-size: 2rem; font-weight: 800; color: var(--text); }
.heatmap { background: var(--card-bg); padding: 24px; border-radius: var(--radius); box-shadow: var(--shadow); }
.heatmap h3 { margin-bottom: 16px; }
.heatmap-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); gap: 8px; }
.heatmap-item { background: var(--primary); color: white; padding: 12px; border-radius: var(--radius-sm); text-align: center; font-size: 0.8rem; font-weight: 600; cursor: pointer; transition: var(--transition); }
.heatmap-item:hover { transform: scale(1.05); }
.footer { background: var(--card-bg); border-top: 1px solid var(--border); padding: 40px 0; text-align: center; }
.footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 16px; flex-wrap: wrap; }
.footer-links a { color: var(--text-light); text-decoration: none; transition: var(--transition); }
.footer-links a:hover { color: var(--primary); }
.social-share { display: flex; justify-content: center; gap: 16px; margin-bottom: 16px; }
.social-share a { color: var(--text-light); font-size: 1.5rem; transition: var(--transition); }
.social-share a:hover { color: var(--primary); }
.admin-container { max-width: 900px; margin: 40px auto; padding: 0 20px; }
.login-form { background: var(--card-bg); padding: 40px; border-radius: var(--radius); box-shadow: var(--shadow-lg); max-width: 400px; margin: 60px auto; }
.login-form h2 { text-align: center; margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 12px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg); color: var(--text); font-size: 1rem; }
.form-group textarea { resize: vertical; }
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; }
.admin-actions { display: flex; gap: 12px; }
.admin-section { background: var(--card-bg); padding: 24px; border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 24px; }
.admin-section h2 { margin-bottom: 16px; }
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { padding: 12px; border-bottom: 1px solid var(--border); text-align: left; }
.admin-table th { background: var(--bg-secondary); font-weight: 600; }
.table-responsive { overflow-x: auto; }
.alert { padding: 12px; border-radius: var(--radius-sm); margin-bottom: 16px; }
.alert-success { background: #dcfce7; color: #166534; }
.alert-error { background: #fee2e2; color: #991b1b; }
@media (max-width: 768px) {
    .nav ul { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0; background: var(--card-bg); border-bottom: 1px solid var(--border); padding: 16px; }
    .nav ul.active { display: flex; }
    .hamburger { display: block; }
    .nav-actions { display: none; }
    .hero h1 { font-size: 1.8rem; }
    .hero p { font-size: 1rem; }
    .blog-grid { grid-template-columns: 1fr; }
    .filter-group { flex-direction: column; align-items: stretch; }
    .admin-header { flex-direction: column; gap: 12px; }
}