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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    overflow-x: hidden;
}

header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1.5rem 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    animation: slideDown 0.6s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

    .nav-links a {
        color: #333;
        text-decoration: none;
        font-weight: 500;
        transition: all 0.3s ease;
        position: relative;
    }

        .nav-links a:hover {
            color: #667eea;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: #667eea;
            transition: width 0.3s ease;
        }

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

.hero {
    max-width: 1400px;
    margin: 4rem auto;
    padding: 0 2rem;
    text-align: center;
    animation: fadeIn 0.8s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    font-size: 3.5rem;
    color: white;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero p {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 2rem;
}

.search-bar {
    max-width: 600px;
    margin: 2rem auto;
    position: relative;
    animation: scaleIn 0.6s ease 0.3s both;
}

@keyframes scaleIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

.search-bar input {
    width: 100%;
    padding: 1.2rem 3rem 1.2rem 1.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

    .search-bar input:focus {
        outline: none;
        box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
        transform: translateY(-2px);
    }

.search-bar button {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    color: white;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

    .search-bar button:hover {
        transform: translateY(-50%) scale(1.05);
        box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
    }

.featured {
    background: white;
    max-width: 1400px;
    margin: 4rem auto;
    padding: 3rem 2rem;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    animation: fadeIn 0.8s ease 0.4s both;
}

    .featured h2 {
        text-align: center;
        font-size: 2.5rem;
        margin-bottom: 3rem;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.product-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 15px;
    padding: 2rem;
    transition: all 0.4s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

    .product-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        opacity: 0;
        transition: opacity 0.4s ease;
        z-index: 0;
    }

    .product-card:hover::before {
        opacity: 0.1;
    }

    .product-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    }

    .product-card > * {
        position: relative;
        z-index: 1;
    }

.product-badge {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.product-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.product-category {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.price-range {
    display: flex;
    justify-content: space-between;
    margin: 1.5rem 0;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 10px;
}

.price-option {
    text-align: center;
    flex: 1;
}

    .price-option span {
        display: block;
        font-size: 0.85rem;
        color: #666;
        margin-bottom: 0.3rem;
    }

    .price-option strong {
        font-size: 1.2rem;
        color: #667eea;
    }

.rating {
    font-size: 0.85rem;
    color: #f59e0b;
    margin-top: 0.5rem;
}

.model-name {
    font-size: 0.8rem;
    color: #666;
    margin-top: 0.3rem;
    font-weight: 500;
}

.key-factors {
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 10px;
}

    .key-factors strong {
        display: block;
        margin-bottom: 0.8rem;
        color: #333;
        font-size: 0.95rem;
    }

.factors-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.factor {
    background: rgba(102, 126, 234, 0.1);
    padding: 0.4rem 0.8rem;
    border-radius: 15px;
    font-size: 0.85rem;
    color: #667eea;
    font-weight: 500;
}

.cta-button {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.8rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

    .cta-button:hover {
        transform: scale(1.05);
        box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
    }

.daily-update {
    text-align: center;
    background: rgba(255, 255, 255, 0.95);
    padding: 1.5rem;
    max-width: 1400px;
    margin: 2rem auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

    .daily-update strong {
        color: #667eea;
        font-size: 1.1rem;
    }

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .product-grid {
        grid-template-columns: 1fr;
    }

    .price-range {
        flex-direction: column;
        gap: 1rem;
    }
}