:root {
    --primary-color: #d4af37; /* Gold */
    --secondary-color: #1a1a1a; /* Dark Gray */
    --bg-color: #0b0b0b;
    --card-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --sidebar-width: 260px;
    --danger: #ff4757;
    --success: #2ed573;
    --warning: #ffa502;
    --info: #1e90ff;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Glassmorphism utility */
.glass {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
    transition: var(--transition);
}

.glass:hover {
    border-color: rgba(212, 175, 55, 0.3);
    background: rgba(255, 255, 255, 0.05);
}

/* Navbar */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 6%;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(11, 11, 11, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 3px;
    text-decoration: none;
    background: linear-gradient(45deg, var(--primary-color), #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 3rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.7;
}

.nav-links a:hover {
    color: var(--primary-color);
    opacity: 1;
}

/* Hero Section */
.hero {
    height: 85vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 10%;
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('../images/hero-bg.jpg') center/cover no-repeat fixed;
    border-bottom: 1px solid var(--glass-border);
}

.hero h1 {
    font-size: 5.5rem;
    margin-bottom: 1.5rem;
    font-weight: 900;
    letter-spacing: -2px;
    line-height: 1;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 3.5rem;
}

/* Buttons */
.btn {
    padding: 0.9rem 2.2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--primary-color);
    color: #000;
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.25);
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 35px rgba(212, 175, 55, 0.4);
    background: #e5be48;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-auth {
    padding: 0.6rem 1.4rem;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    transition: var(--transition);
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.btn-auth:hover {
    background: var(--primary-color);
    color: #000;
    border-color: var(--primary-color);
}

/* Grid & Layout */
.container {
    padding: 5rem 6%;
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.8rem;
    margin-bottom: 4rem;
    text-align: center;
    font-weight: 900;
    letter-spacing: -1px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 3rem;
}

/* Admin Dashboard Layout */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: rgba(15, 15, 15, 0.9);
    border-right: 1px solid var(--glass-border);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2.5rem;
}

.sidebar-brand {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 3rem;
    padding-left: 1rem;
    text-decoration: none;
}

.sidebar-menu {
    list-style: none;
    flex: 1;
}

.sidebar-menu li {
    margin-bottom: 0.8rem;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 0.8rem 1.2rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 12px;
    transition: var(--transition);
    font-weight: 600;
}

.sidebar-menu a:hover, .sidebar-menu a.active {
    background: rgba(212, 175, 55, 0.1);
    color: var(--primary-color);
}

.sidebar-footer {
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
}

/* Dashboard Stats Card */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-value {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--text-primary);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Tables */
.table-container {
    overflow-x: auto;
    margin-top: 2rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th {
    padding: 1.2rem;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

td {
    padding: 1.2rem;
    border-bottom: 1px solid rgba(255,255,255,0.03);
    font-size: 0.95rem;
}

tr:hover td {
    background: rgba(255,255,255,0.02);
}

.badge {
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-success { background: rgba(46, 213, 115, 0.1); color: var(--success); }
.badge-warning { background: rgba(255, 165, 2, 0.1); color: var(--warning); }
.badge-danger { background: rgba(255, 71, 87, 0.1); color: var(--danger); }

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    font-weight: 600;
}

.alert-success {
    background: rgba(46, 213, 115, 0.1);
    color: var(--success);
    border: 1px solid rgba(46, 213, 115, 0.2);
}

/* Car Card Enhancement */
.car-card {
    overflow: hidden;
    background: rgba(255, 255, 255, 0.02);
}

.car-info {
    padding: 1.8rem;
}

.car-price {
    color: var(--primary-color);
    font-size: 1.6rem;
    font-weight: 900;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-control {
    width: 100%;
    padding: 0.9rem 1.2rem;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: #fff;
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    background: rgba(255,255,255,0.06);
    outline: none;
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.1);
}

/* Specialized Box Component */
.box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 2.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.05), transparent);
    pointer-events: none;
}

.box:hover {
    transform: translateY(-5px);
    border-color: rgba(212, 175, 55, 0.2);
    background: rgba(255, 255, 255, 0.04);
}

@media (max-width: 992px) {
    .sidebar { width: 80px; padding: 2rem 0.5rem; }
    .sidebar-brand, .sidebar-menu span { display: none; }
    .main-content { margin-left: 80px; }
}

@media (max-width: 768px) {
    .hero h1 { font-size: 3.5rem; }
    .nav-links { display: none; }
}

/* Footer Styles */
footer {
    background: rgba(11, 11, 11, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    padding: 6rem 6% 3rem;
    margin-top: 5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 4rem;
    max-width: 1400px;
    margin: 0 auto;
}

.footer-col h4 {
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 1rem;
}

.footer-col ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

.footer-col ul li a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-bottom {
    margin-top: 6rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 1200px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}