:root {
    
    --primary-color: #0d6efd; 
    --primary-dark: #0052cc;
    --primary-light: #e6f0ff;
    --secondary-color: #198754; 
    --accent-color: #ff5e00; 
    
    --bg-color: #f8f9fa;
    --surface-color: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;

    
    --font-main: 'Inter', sans-serif;
    
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-glow: 0 0 15px rgba(13, 110, 253, 0.4);
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}


.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

.btn-secondary:hover {
    background-color: #146c43;
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background-color: var(--primary-light);
}


.navbar {
    background-color: var(--surface-color);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo i {
    color: var(--primary-color);
}

.logo span {
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-links a:hover::after, .nav-links a.active::after {
    width: 100%;
}


.hero {
    margin-top: 70px; 
    padding: 80px 0;
    background: linear-gradient(135deg, var(--surface-color) 0%, var(--primary-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(13,110,253,0.1) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-text {
    flex: 1;
}

.badge-new {
    display: inline-block;
    background-color: rgba(25, 135, 84, 0.1);
    color: var(--secondary-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 20px;
    border: 1px solid rgba(25, 135, 84, 0.2);
}

.hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.hero-image-wrapper {
    flex: 1;
    position: relative;
    height: 400px;
    border-radius: 20px;
    background-image: url('https://images.unsplash.com/photo-1535591273668-578e31182c4f?auto=format&fit=crop&w=1200&q=80');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    box-shadow: var(--shadow-lg);
}

.glass-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    padding: 20px;
}

.hero-stats {
    position: absolute;
    bottom: -20px;
    left: -20px;
    display: flex;
    gap: 20px;
    box-shadow: var(--shadow-lg);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.stat-item i {
    font-size: 2rem;
    color: var(--primary-color);
    background: var(--primary-light);
    padding: 12px;
    border-radius: 10px;
}

.stat-item h4 {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
}


.section {
    padding: 60px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.section-header h2 {
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.live-dot {
    width: 12px;
    height: 12px;
    background-color: #dc3545;
    border-radius: 50%;
    display: inline-block;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(220, 53, 69, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(220, 53, 69, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(220, 53, 69, 0); }
}

.view-all {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
}

.view-all:hover {
    text-decoration: underline;
}


.auction-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.auction-card {
    background-color: var(--surface-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    display: flex;
    flex-direction: column;
}

.auction-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.card-badges {
    position: absolute;
    top: 10px;
    left: 10px;
    display: flex;
    gap: 8px;
}

.badge {
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    color: white;
    display: flex;
    align-items: center;
    gap: 4px;
}

.badge.verified {
    background-color: var(--secondary-color);
}

.badge.live {
    background-color: #dc3545;
}

.card-timer {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    gap: 5px;
}

.card-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.card-seller {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.card-price-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    background-color: var(--bg-color);
    padding: 10px;
    border-radius: 8px;
}

.price-col span {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.price-col strong {
    font-size: 1rem;
    color: var(--text-primary);
}

.price-col.current strong {
    color: var(--accent-color);
    font-size: 1.1rem;
}

.card-actions {
    display: flex;
    gap: 10px;
}

.btn-bid {
    flex: 1;
}

.btn-video {
    width: 40px;
    height: 40px;
    padding: 0;
    background-color: var(--primary-light);
    color: var(--primary-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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


@media (max-width: 768px) {
    .hero-content {
        flex-direction: column;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .hero-stats {
        position: relative;
        bottom: 0;
        left: 0;
        margin-top: 20px;
        flex-direction: column;
        gap: 10px;
    }
    .nav-links {
        display: none; 
    }
}


.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-card {
    background: var(--surface-color);
    width: 90%;
    max-width: 450px;
    max-height: 90vh; 
    overflow-y: auto; 
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px);
    transition: transform 0.3s ease;
    position: relative;
}

.modal-overlay.active .modal-card {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: #dc3545;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
    text-align: center;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.login-options {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.login-options .btn {
    flex: 1;
}


.video-container {
    width: 100%;
    height: 250px;
    background: #000;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-container video, .video-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    bottom: 10px;
    left: 10px;
    right: 10px;
    display: flex;
    justify-content: space-between;
    color: white;
    font-size: 0.8rem;
    background: rgba(0,0,0,0.5);
    padding: 5px 10px;
    border-radius: 20px;
    backdrop-filter: blur(2px);
}

.map-container {
    width: 100%;
    height: 200px;
    background-image: url('https://images.unsplash.com/photo-1524661135-423995f22d0b?auto=format&fit=crop&w=600&q=80');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    border-radius: 12px;
    position: relative;
    margin-bottom: 15px;
}

.map-pin {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #dc3545;
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translate(-50%, -50%); }
    40% { transform: translate(-50%, -70%); }
    60% { transform: translate(-50%, -60%); }
}


.checkout-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 0.95rem;
}
.checkout-total {
    border-top: 2px dashed var(--border-color);
    padding-top: 10px;
    margin-top: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    display: flex;
    justify-content: space-between;
    color: var(--primary-color);
}


@media (max-width: 768px) {
    .nav-container {
        flex-wrap: wrap;
        height: auto;
        padding: 10px 20px;
        justify-content: space-between;
        gap: 15px;
    }
    
    .nav-links {
        order: 3;
        flex-basis: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 15px;
        font-size: 0.9rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 120px;
        gap: 30px;
    }
    
    .hero-text h1 {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .auction-grid, .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }
    
    .stat-item {
        justify-content: center;
        text-align: center;
        flex-direction: column;
    }
}