* {
    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%);
    min-height: 100vh;
    color: #333;
}

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

header {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    font-size: 2rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    color: white;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.cart-icon {
    position: relative;
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: #ff4757;
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: bold;
}

.main-content {
    padding: 2rem 0;
}

.hero {
    text-align: center;
    padding: 3rem 0;
    color: white;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

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

.product-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.product-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin-bottom: 1rem;
}

.product-info {
    color: white;
}

.product-title {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.product-price {
    font-size: 1.1rem;
    color: #4ecdc4;
    font-weight: bold;
    margin-bottom: 1rem;
}

.product-description {
    opacity: 0.8;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: 5% auto;
    padding: 2rem;
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.close {
    color: white;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.close:hover {
    opacity: 0.7;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: white;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.cart-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 1rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: white;
}

.cart-item-info {
    flex: 1;
}

.cart-item-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.quantity-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cart-total {
    text-align: center;
    margin-top: 2rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    color: white;
}

.cart-total h3 {
    font-size: 1.5rem;
    color: #4ecdc4;
}

.empty-cart {
    text-align: center;
    padding: 3rem;
    color: white;
    opacity: 0.7;
}

.order-history {
    color: white;
}

.order-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.order-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.order-id {
    font-weight: bold;
    color: #4ecdc4;
}

.order-date {
    opacity: 0.7;
}

.order-total {
    font-weight: bold;
    font-size: 1.2rem;
}

.section-title {
    color: white;
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    .nav-buttons {
        flex-wrap: wrap;
        justify-content: center;
    }
    .hero h1 {
        font-size: 2rem;
    }
    .hero p {
        font-size: 1rem;
    }
    .products-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 1rem;
    }
    .cart-item {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    .cart-item-controls {
        justify-content: center;
    }
    .cart-item-info>div {
        flex-direction: column;
        text-align: center;
    }
    .section-title {
        font-size: 1.5rem;
    }
    .order-header {
        flex-direction: column;
        gap: 0.5rem;
    }
    .btn {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    .hero {
        padding: 2rem 0;
    }
    .hero h1 {
        font-size: 1.5rem;
    }
    .hero p {
        font-size: 0.9rem;
    }
    .product-card {
        padding: 1rem;
    }
    .product-image {
        height: 150px;
        font-size: 2rem;
    }
    .product-title {
        font-size: 1rem;
    }
    .nav-buttons {
        gap: 0.5rem;
    }
    .btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.7rem;
    }
    .modal-content {
        width: 98%;
        margin: 5% auto;
        padding: 1rem;
    }
    .form-group input {
        padding: 0.6rem;
    }
    .notification {
        right: 10px;
        padding: 0.8rem 1rem;
        font-size: 0.9rem;
    }
    .cart-item {
        padding: 0.8rem;
    }
    .quantity-controls {
        gap: 0.3rem;
    }
    .quantity-btn {
        width: 25px;
        height: 25px;
        font-size: 0.8rem;
    }
}

.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 1rem 2rem;
    background: linear-gradient(45deg, #4ecdc4, #44a08d);
    color: white;
    border-radius: 10px;
    z-index: 1001;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.notification.show {
    transform: translateX(0);
}