/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
}

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

.hidden {
    display: none !important;
}

/* Navbar */
.navbar {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #4361ee;
    display: flex;
    align-items: center;
    gap: 10px;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    color: #555;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 20px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link:hover,
.nav-link.active {
    background: #4361ee;
    color: white;
}

.cart-count {
    background: #f72585;
    color: white;
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 10px;
    margin-left: 5px;
}

.btn-login {
    background: #4361ee;
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

/* Hero */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #4361ee 0%, #3a0ca3 100%);
    color: white;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.highlight {
    color: #4cc9f0;
}

.hero-content p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 30px;
}

.btn-hero {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #4cc9f0;
    color: #000;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
}

.image-placeholder {
    width: 100%;
    height: 300px;
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255,255,255,0.2);
}

/* Section Header */
.section-header {
    text-align: center;
    margin: 40px 0;
}

.section-header h2 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.section-header p {
    color: #666;
}

/* Admin Panel */
.admin-panel {
    background: white;
    border-radius: 10px;
    padding: 25px;
    margin: 30px 0;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.admin-header {
    margin-bottom: 20px;
}

.admin-header h3 {
    color: #4361ee;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tabs {
    display: flex;
    gap: 10px;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
}

.tab-btn {
    padding: 10px 20px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    color: #666;
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tab-btn.active {
    color: #4361ee;
    border-bottom-color: #4361ee;
}

.tab-content {
    display: none;
    padding: 20px 0;
}

.tab-content.active {
    display: block;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #4361ee;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
    font-family: inherit;
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: #666;
    font-size: 0.9rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.btn-submit {
    background: #4cc9f0;
    color: #000;
    border: none;
    padding: 12px 30px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    justify-content: center;
}

.loading-text {
    text-align: center;
    color: #666;
    padding: 20px;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.loading-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
    color: #666;
}

.product-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
}

.product-image {
    width: 100%;
    height: 200px;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-content {
    padding: 20px;
}

.product-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #333;
}

.product-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: #4361ee;
    margin-bottom: 15px;
}

.product-description {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 20px;
}

.btn-add-cart {
    width: 100%;
    background: #4361ee;
    color: white;
    border: none;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* Cart */
.cart-section {
    padding: 60px 0;
    background: white;
    margin-top: 40px;
}

.empty-cart {
    text-align: center;
    padding: 40px 20px;
    color: #666;
}

.empty-cart i {
    color: #ddd;
    margin-bottom: 20px;
}

.empty-cart h3 {
    color: #333;
    margin-bottom: 10px;
}

.btn-primary {
    background: #4361ee;
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 500;
}

.cart-items {
    margin-bottom: 30px;
}

.cart-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-item-info h4 {
    margin-bottom: 5px;
}

.cart-item-price {
    color: #4361ee;
    font-weight: 600;
}

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

.quantity-control {
    display: flex;
    align-items: center;
    gap: 10px;
}

.quantity-btn {
    width: 30px;
    height: 30px;
    border: none;
    background: #4361ee;
    color: white;
    border-radius: 50%;
    cursor: pointer;
}

.quantity {
    font-weight: 600;
    min-width: 30px;
    text-align: center;
}

.btn-remove {
    background: #f72585;
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
}

.cart-summary {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 10px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #ddd;
    font-size: 1.2rem;
    font-weight: 600;
}

.btn-checkout {
    width: 100%;
    background: #4361ee;
    color: white;
    border: none;
    padding: 15px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal-content {
    background: white;
    border-radius: 10px;
    width: 90%;
    max-width: 400px;
    animation: slideUp 0.3s;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #eee;
}

.close {
    font-size: 1.5rem;
    cursor: pointer;
    color: #999;
}

.modal-body {
    padding: 20px;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #666;
}

.modal-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.btn-login-modal,
.btn-register-modal {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-login-modal {
    background: #4361ee;
    color: white;
}

.btn-register-modal {
    background: #f8f9fa;
    color: #333;
}

.modal-note {
    text-align: center;
    margin-top: 15px;
    color: #666;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #333;
    color: white;
    padding: 15px 25px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    display: none;
    align-items: center;
    gap: 10px;
    z-index: 3000;
}

.toast.show {
    display: flex;
    animation: slideIn 0.3s;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast.success {
    background: #4cc9f0;
    color: #000;
}

.toast.error {
    background: #f72585;
    color: white;
}

.toast.info {
    background: #4361ee;
    color: white;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 30px 20px;
    margin-top: 60px;
}

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        padding: 30px;
        transition: left 0.3s;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .tabs {
        flex-direction: column;
    }
    
    .cart-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .cart-item-actions {
        width: 100%;
        justify-content: space-between;
    }
}