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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #eee;
    min-height: 100vh;
}

/* Navbar */
.navbar {
    background: rgba(15, 25, 35, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(233, 69, 96, 0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-brand i {
    color: #e94560;
    font-size: 1.8rem;
}

.brand-sub {
    font-size: 0.8rem;
    color: #888;
    margin-left: 0.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    flex-wrap: wrap;
}

.nav-menu a {
    color: #eee;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s;
}

.nav-menu a:hover {
    background: rgba(233, 69, 96, 0.2);
    color: #e94560;
    transform: translateY(-2px);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255,255,255,0.1);
    padding: 0.3rem 1rem;
    border-radius: 50px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid #e94560;
}

.user-details {
    display: flex;
    flex-direction: column;
}

.username {
    font-weight: 600;
    font-size: 0.9rem;
}

.admin-badge {
    font-size: 0.7rem;
    background: #e94560;
    padding: 2px 6px;
    border-radius: 4px;
    color: white;
}

.logout-btn {
    color: #e94560;
    font-size: 1.2rem;
    transition: transform 0.3s;
}

.logout-btn:hover {
    transform: scale(1.1);
}

.login-btn {
    background: #5865F2;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s;
}

.login-btn:hover {
    background: #4752c4;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(88, 101, 242, 0.3);
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    min-height: calc(100vh - 160px);
}

/* Cards Grid */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background: linear-gradient(135deg, rgba(15, 52, 96, 0.9) 0%, rgba(22, 33, 62, 0.9) 100%);
    padding: 2rem;
    border-radius: 16px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(233, 69, 96, 0.2);
    transition: all 0.3s;
    text-align: center;
}

.card:hover {
    transform: translateY(-10px);
    border-color: #e94560;
    box-shadow: 0 10px 30px rgba(233, 69, 96, 0.2);
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #e94560;
}

.card p {
    color: #aaa;
    margin-bottom: 1.5rem;
}

.btn {
    display: inline-block;
    background: linear-gradient(135deg, #e94560 0%, #c7354d 100%);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-weight: 600;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(233, 69, 96, 0.4);
}

/* Profile Card */
.profile-card {
    background: linear-gradient(135deg, rgba(15, 52, 96, 0.9) 0%, rgba(22, 33, 62, 0.9) 100%);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    margin-bottom: 2rem;
}

.avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 3px solid #e94560;
    margin-bottom: 1rem;
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.stat-card {
    background: rgba(0,0,0,0.3);
    padding: 1rem;
    border-radius: 12px;
    text-align: center;
}

.stat-card i {
    font-size: 2rem;
    color: #e94560;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0.5rem 0;
}

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

.product-card {
    background: linear-gradient(135deg, #0f3460 0%, #16213e 100%);
    padding: 1.5rem;
    border-radius: 12px;
    transition: all 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

.price {
    font-size: 1.5rem;
    font-weight: bold;
    color: #e94560;
    margin: 1rem 0;
}

.badge {
    display: inline-block;
    background: #e94560;
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
}

/* Admin Panel */
.admin-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
    border-radius: 16px;
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.admin-menu {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.admin-menu-item {
    background: linear-gradient(135deg, #0f3460 0%, #16213e 100%);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    text-decoration: none;
    color: white;
    transition: all 0.3s;
}

.admin-menu-item:hover {
    transform: translateY(-5px);
    background: #e94560;
}

.admin-menu-item i {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.5rem;
}

/* Tables */
.admin-table {
    width: 100%;
    background: rgba(15, 52, 96, 0.9);
    border-radius: 12px;
    overflow: hidden;
}

.admin-table th {
    background: #e94560;
    padding: 1rem;
    text-align: left;
}

.admin-table td {
    padding: 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.table-responsive {
    overflow-x: auto;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.alert-error {
    background: rgba(220, 53, 69, 0.2);
    border: 1px solid #dc3545;
    color: #dc3545;
}

.alert-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Footer */
.footer {
    background: rgba(15, 25, 35, 0.95);
    margin-top: 3rem;
    padding: 2rem;
    text-align: center;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-links {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.footer-links a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #e94560;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
    }
    
    .nav-menu {
        justify-content: center;
    }
    
    .container {
        padding: 1rem;
    }
    
    .cards, .products {
        grid-template-columns: 1fr;
    }
    
    .user-info {
        padding: 0.3rem 0.8rem;
    }
    
    .username {
        font-size: 0.8rem;
    }
}