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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Media query for reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

/* Navigation Bar */
.navbar {
    background: linear-gradient(to right, #2c3e50, #3498db);
    padding: 1rem 5%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    color: white;
    font-size: 1.5rem;
}

/* Mobile menu button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

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

.nav-links li a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: 0.3s;
    white-space: nowrap;
}

.nav-links li a:hover {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
}

.nav-links .auth-link {
    background: #e74c3c;
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.nav-links .auth-link:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

.nav-links .auth-link span {
    margin-right: 10px;
}

.logout-btn {
    background: #c0392b;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 15px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background: #a93226;
    transform: translateY(-1px);
}

/* Hero Section with Live Advertisement */
.hero {
    height: 85vh;
    position: relative;
    overflow: hidden;
    color: white;
    margin-top: 60px;
}

.welcome-banner {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    background: #3498db;
    padding: 15px 0;
    text-align: center;
    z-index: 10;
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
}

.welcome-banner h1 {
    font-size: 2rem;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    margin: 0;
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.discount-tag {
    background: #2ecc71;
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-weight: bold;
    text-shadow: none;
    font-size: 1.1rem;
    margin-left: 10px;
}

/* Hero Slider */
.hero-slider {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    overflow: hidden;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    z-index: 1;
}

.slide.active {
    opacity: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7);
}

.slide-content {
    position: absolute;
    top: 45%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    width: 100%;
    padding: 0 20px;
}

.animate-text {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease-out;
}

.slide.active .animate-text {
    opacity: 1;
    transform: translateY(0);
}

.slide-content h2 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.slide-content p {
    font-size: 1.5rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    max-width: 800px;
    margin: 0 auto 30px auto;
}

.shop-now-btn {
    display: inline-block;
    background: #2ecc71;
    color: white;
    padding: 15px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: transform 0.2s ease;
    border: 2px solid transparent;
}

.shop-now-btn:hover {
    background: transparent;
    border-color: white;
    transform: translateY(-2px);
}

/* Products Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 2rem;
}

.product-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: 0.3s;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.product-card img {
    width: 100%;
    height: 400px;
    object-fit: contain;
    border-radius: 5px;
    margin-bottom: 1rem;
    background: #ffffff;
    padding: 1rem;
    transition: transform 0.3s ease;
}

@media (max-width: 768px) {
    .product-card img {
        height: 200px;
    }
}

.product-card .image-container {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
    border-radius: 5px;
    margin-bottom: 1rem;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-card .image-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    padding: 1rem;
    transition: transform 0.3s ease;
}

.product-card:hover img {
    transform: scale(1.05);
}

.product-card h3 {
    font-size: 1.2rem;
    margin: 0.5rem 0;
    color: #2c3e50;
}

.product-card .description {
    margin: 0.5rem 0;
    color: #666;
    font-size: 0.9rem;
}

.product-card .price {
    font-size: 1.5rem;
    color: #2ecc71;
    font-weight: bold;
    margin: 10px 0;
}

.product-card .stock-status {
    margin: 0.5rem 0;
    font-weight: bold;
    padding: 5px 10px;
    border-radius: 15px;
    display: inline-block;
}

.product-card .stock-status.in-stock {
    color: #27ae60;
}

.product-card .stock-status.out-of-stock {
    color: #e74c3c;
}

.buy-now-btn {
    background: linear-gradient(to right, #2ecc71, #27ae60);
    color: white;
    border: none;
    padding: 15px 25px;
    border-radius: 25px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: auto;
    width: 100%;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(46, 204, 113, 0.2);
}

.buy-now-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: 0.5s;
}

.buy-now-btn:hover::before {
    left: 100%;
}

.buy-now-btn:hover {
    background: linear-gradient(to right, #27ae60, #219a52);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(46, 204, 113, 0.3);
}

.buy-now-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(46, 204, 113, 0.2);
}

.buy-now-btn:disabled {
    background: #95a5a6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.buy-now-btn:disabled::before {
    display: none;
}

/* Modal Styles */
.modal {
    display: none; /* Hidden by default */
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal.show {
    opacity: 1;
    visibility: visible;
    display: block;
}

    .modal-content {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: white;
        margin: 0;
        width: 100%;
        border-radius: 20px 20px 0 0;
        box-shadow: 0 -5px 25px rgba(0, 0, 0, 0.2);
        max-height: 90vh;
        overflow-y: auto;
        transform: translateY(100%);
        transition: transform 0.3s ease-out;
    }

    .modal.show .modal-content {
        transform: translateY(0);
    }

    @media (min-width: 768px) {
        .modal-content {
            position: relative;
            margin: 20px auto;
            width: 90%;
            max-width: 600px;
            border-radius: 12px;
            transform: none;
        }
    }/* Loading Spinner */
.loading-spinner {
    text-align: center;
    padding: 40px;
    font-size: 1.2rem;
    color: #666;
}

.loading-spinner::after {
    content: '';
    display: block;
    width: 40px;
    height: 40px;
    border: 4px solid #ddd;
    border-top-color: #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Essential Animations */
@keyframes slideDown {
    from { transform: translateY(-100%); }
    to { transform: translateY(0); }
}

/* Media Queries */
@media (max-width: 1024px) {
    .slide-content h2 {
        font-size: 2.5rem;
    }

    .slide-content p {
        font-size: 1.2rem;
    }
}

@media (max-width: 768px) {
    body {
        padding-top: 60px;
        -webkit-tap-highlight-color: transparent;
    }

    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        margin-right: 5px;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 8px;
    }

    .navbar {
        padding: 0.5rem;
        height: 60px;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .logo h1 {
        font-size: 1.2rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: calc(100vw - 120px);
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        background: #2c3e50;
        flex-direction: column;
        padding: 1rem 0;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        transition: transform 0.3s ease-in-out;
        z-index: 999;
    }

    .nav-links.active {
        display: flex;
        transform: translateY(0);
    }

    .nav-links li {
        width: 100%;
        text-align: center;
        opacity: 0;
        transform: translateX(-20px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }
    
    .nav-links.active li {
        opacity: 1;
        transform: translateX(0);
        transition-delay: 0.1s;
    }

    .nav-links li a {
        display: block;
        padding: 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-links .auth-link {
        margin: 1rem auto;
        display: inline-block;
    }

    .product-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1rem;
        padding: 1rem;
    }
    
    .product-card {
        margin: 0;
        padding: 1rem;
        background: #ffffff;
        border-radius: 12px;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        display: flex;
        flex-direction: column;
        transition: transform 0.2s ease, box-shadow 0.2s ease;
        -webkit-tap-highlight-color: transparent;
    }
    
    .product-card:active {
        transform: scale(0.98);
    }
    
    .product-card img {
        height: 140px;
        width: 100%;
        object-fit: contain;
        border-radius: 8px;
        background: #f8f9fa;
        padding: 0.5rem;
        margin-bottom: 0.75rem;
    }
    
    .product-card h3 {
        font-size: 1rem;
        margin: 0.25rem 0;
    }
    
    .product-card .description {
        font-size: 0.8rem;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        overflow: hidden;
        max-height: 2.4em;
    }

    .hero {
        height: 60vh;
        margin-top: 0;
    }

    .welcome-banner h1 {
        font-size: 1.2rem;
        flex-direction: column;
        gap: 10px;
    }

    .discount-tag {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .hero {
        height: 50vh;
    }

    .slide-content h2 {
        font-size: 1.8rem;
    }

    .slide-content p {
        font-size: 1rem;
    }

    .shop-now-btn {
        padding: 10px 25px;
        font-size: 1rem;
    }

    .product-grid {
        grid-template-columns: 1fr;
        padding: 0.5rem;
    }

    .product-card {
        margin: 0.5rem;
        padding: 1rem;
    }

    .product-card img {
        height: 180px;
    }

    .product-card .price {
        font-size: 1.2rem;
    }

    .buy-now-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    /* Fix for iOS notch */
    .navbar {
        padding-top: env(safe-area-inset-top);
        padding-bottom: env(safe-area-inset-bottom);
    }

    /* Improve touch targets */
    .nav-links li a,
    .buy-now-btn,
    .shop-now-btn {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Better spacing for mobile */
    section {
        padding: 2rem 1rem;
    }

    h2 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
}

/* Touch improvements */
@media (hover: none) {
    .buy-now-btn:active,
    .submit-order:active {
        transform: scale(0.98);
    }
}