:root {
    --primary-color: #d4af37; /* Gold */
    --secondary-color: #1e293b; /* Dark Slate Blue */
    --bg-color: #0f172a; /* Deep Background */
    --card-bg: #1e293b;
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --sidebar-width: 280px;
    --danger: #ff4757;
    --success: #2ed573;
    --warning: #ffa502;
    --info: #1e90ff;
    --glass-bg: rgba(30, 41, 59, 0.7);
}

* {
    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: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
}

.glass:hover {
    border-color: rgba(212, 175, 55, 0.5);
    background: rgba(30, 41, 59, 0.9);
    box-shadow: 0 15px 45px -10px rgba(0, 0, 0, 0.4);
}

/* Navbar */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 6%;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.9);
    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: 0.8;
}

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

/* Container */
.container {
    padding: 0 6%;
}

.container-fluid {
    padding: 0 4%;
}

/* Dashboard Layout */
.dashboard-container {
    display: flex;
    min-height: 100vh;
    background: #050505;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 3rem 4rem;
    min-width: 0;
}

/* Sidebar (Admin) */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    background: #0a0a0a;
    border-right: 1px solid var(--glass-border);
    position: fixed;
    padding: 2.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.sidebar-brand {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: 4px;
    margin-bottom: 3.5rem;
    padding-left: 1rem;
    display: block;
}

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

.sidebar-menu li {
    margin-bottom: 0.5rem;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    border-radius: 12px;
    transition: var(--transition);
    font-size: 0.95rem;
}

.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);
}

/* Hero Section */
.hero {
    height: 85vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: radial-gradient(circle at top right, rgba(212, 175, 55, 0.15), transparent),
                radial-gradient(circle at bottom left, rgba(30, 41, 59, 0.5), transparent);
}

.hero h1 {
    font-size: 5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 2rem;
    letter-spacing: -2px;
    color: #ffffff;
}

.hero p {
    font-size: 1.4rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 3rem;
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 1rem 1.2rem;
    border-radius: 12px;
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-family: inherit;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.2);
}

textarea.form-control {
    resize: none;
}

/* Buttons */
.btn {
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    transition: var(--transition);
    border: none;
    font-size: 0.95rem;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-color);
    color: #000;
    box-shadow: 0 10px 20px -5px rgba(212, 175, 55, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px -5px rgba(212, 175, 55, 0.6);
    background: #e5be47;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--glass-border);
    color: var(--text-primary);
}

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

.btn-sm {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 1.5rem 3rem;
    font-size: 1.1rem;
}

.btn-danger {
    background: rgba(255, 71, 87, 0.1);
    color: var(--danger);
    border: 1px solid var(--danger);
}

.btn-danger:hover {
    background: var(--danger);
    color: white;
}

.btn-auth {
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    border: 2px solid var(--glass-border);
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 0.9rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* Grid Layouts */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

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

.stat-card {
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 800;
    margin-bottom: 1rem;
}

.stat-value {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-color);
    line-height: 1;
}

/* Table Styling */
.table-container {
    overflow-x: auto;
    border-radius: 16px;
}

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

table thead tr {
    background: rgba(255, 255, 255, 0.03) !important;
}

table th {
    padding: 1.5rem;
    color: var(--text-primary);
    font-weight: 800;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--glass-border);
}

table td {
    padding: 1.5rem;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    vertical-align: middle;
}

table tr:last-child td {
    border-bottom: none;
}

/* Badge */
.badge {
    padding: 0.4rem 1rem;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-block;
}

.badge-success { background: rgba(46, 213, 115, 0.15); color: #2ed573; border: 1px solid rgba(46, 213, 115, 0.3); }
.badge-warning { background: rgba(255, 165, 2, 0.15); color: #ffa502; border: 1px solid rgba(255, 165, 2, 0.3); }
.badge-danger { background: rgba(255, 71, 87, 0.15); color: #ff4757; border: 1px solid rgba(255, 71, 87, 0.3); }
.badge-info { background: rgba(30, 144, 255, 0.15); color: #1e90ff; border: 1px solid rgba(30, 144, 255, 0.3); }
.badge-primary { background: rgba(212, 175, 55, 0.15); color: var(--primary-color); border: 1px solid rgba(212, 175, 55, 0.3); }

/* Card Styling */
.card {
    background: var(--card-bg);
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
    border-color: rgba(212, 175, 55, 0.3);
}

.card-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.card-content {
    padding: 2rem;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4rem;
    padding: 2rem 0;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 900;
    color: #fff;
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Section Title */
.section-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 2.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: #fff;
}

.section-icon {
    background: var(--primary-color);
    color: #000;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    font-size: 1.3rem;
}

/* Sold Overlay */
.sold-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-weight: 900;
    font-size: 2.5rem;
    letter-spacing: 5px;
    text-shadow: 0 5px 15px rgba(0,0,0,0.5);
    z-index: 5;
}

.sold-stamp {
    border: 10px double white;
    color: white;
    padding: 20px 50px;
    font-weight: 900;
    font-size: 5rem;
    transform: rotate(-15deg);
    letter-spacing: 10px;
    text-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

/* Price Tag */
.price-tag {
    font-weight: 900;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.price-tag-large {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--primary-color);
    line-height: 1;
}

/* Alerts */
.alert {
    padding: 1.2rem 2rem;
    border-radius: 16px;
    margin-bottom: 2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.alert-error {
    background: rgba(255, 71, 87, 0.15);
    color: #ff6b81;
    border: 1px solid rgba(255, 71, 87, 0.3);
}

.alert-success {
    background: rgba(46, 213, 115, 0.15);
    color: #7bed9f;
    border: 1px solid rgba(46, 213, 115, 0.3);
}

/* Box component */
.box {
    background: var(--card-bg);
    border-radius: 32px;
    border: 1px solid var(--glass-border);
    padding: 4rem;
}

/* Utility */
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.fw-bold { font-weight: 700; }
.fw-black { font-weight: 900; }
.text-gold { color: var(--primary-color); }
.text-sm { font-size: 0.85rem; }
.text-center { text-align: center; }
.flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-1 { gap: 1rem; }
.w-full { width: 100%; }

/* Footer Styles */
footer {
    background: var(--bg-color);
    border-top: 1px solid var(--glass-border);
    padding: 6rem 6% 3rem;
    color: var(--text-primary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-col h4 {
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.footer-col ul li {
    margin-bottom: 1.2rem;
}

.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: 0.5rem;
}

.footer-bottom {
    padding-top: 3rem;
    border-top: 1px solid var(--glass-border);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 1200px) {
    .main-content { padding: 3rem 2rem; }
}

@media (max-width: 1024px) {
    .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .sidebar { width: 80px; padding: 2rem 0.5rem; }
    .sidebar span, .sidebar-brand { display: none; }
    .main-content { margin-left: 80px; }
}

@media (max-width: 768px) {
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .hero h1 { font-size: 3rem; }
    .footer-grid { grid-template-columns: 1fr; }
    .page-header { flex-direction: column; text-align: center; gap: 2rem; }
}