/* Premium Nutraceutical Design System */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #d72323;
    --primary-light: #e24b4b;
    --primary-dark: #ab1c1c;
    --bg-main: #eeeeee;
    --bg-mid: #d4d4d4;
    --white: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --border: #d4d4d4;
    --card-shadow: 0 15px 35px rgba(215, 35, 35, 0.08);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: var(--primary-light);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(212, 212, 212, 0.5);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0,0,0,0.02);
}

nav.scrolled {
    padding: 0.8rem 5%;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    cursor: pointer;
    color: var(--primary-dark);
}

.logo-img {
    height: 40px;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary);
    transition: var(--transition);
}

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

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

.nav-actions {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-primary);
    position: relative;
    transition: var(--transition);
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -10px;
    background: var(--primary);
    color: var(--white);
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 700;
    z-index: 10;
}

.nav-btn:hover {
    color: var(--primary);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 8%;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.hero-bg-accent {
    position: absolute;
    top: -20%;
    right: -10%;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle, rgba(215,35,35,0.05) 0%, rgba(255,255,255,0) 70%);
    z-index: 1;
    border-radius: 50%;
}

.hero-content {
    flex: 1;
    z-index: 2;
    padding-top: 5rem;
}

.hero-tag {
    display: inline-block;
    padding: 0.5rem 1.2rem;
    background: rgba(226, 75, 75, 0.1);
    color: var(--primary);
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero-content h1 {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
    color: var(--text-primary);
}

.hero-content p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    margin-bottom: 3rem;
}

.cta-btn {
    padding: 1rem 2.5rem;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 30px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 10px 20px rgba(215, 35, 35, 0.2);
}

.cta-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 15px 25px rgba(215, 35, 35, 0.3);
}

.hero-badges {
    display: flex;
    gap: 1.5rem;
}

.badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-dark);
}

.badge i {
    color: var(--primary-light);
    font-size: 1.1rem;
}

.hero-image-composite {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 2;
    height: 600px;
}

.hero-item {
    border-radius: 30px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
    width: 80%;
    object-fit: cover;
    height: 80%;
    transition: var(--transition);
    animation: floatImage 8s ease-in-out infinite;
}

.floating-card {
    position: absolute;
    bottom: 20%;
    left: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 1rem 1.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 600;
    font-size: 0.95rem;
    animation: floatCard 6s ease-in-out infinite reverse;
}

.floating-card i {
    color: #ffb800;
}

@keyframes floatImage {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Product Grid */
.products-section {
    padding: 6rem 8%;
    background: var(--bg-main);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-dark);
}

.filters {
    display: flex;
    gap: 1rem;
}

.filter-btn {
    padding: 0.6rem 1.5rem;
    border: 2px solid var(--border);
    background: var(--white);
    border-radius: 30px;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition);
}

.filter-btn.active, .filter-btn:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2.5rem;
}

.product-card {
    background: var(--white);
    border-radius: 24px;
    padding: 1.5rem;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.product-card:hover {
    box-shadow: var(--card-shadow);
    transform: translateY(-5px);
    border-color: transparent;
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-img {
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    overflow: hidden;
    border-radius: 16px;
    background: var(--bg-main);
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-img img {
    transform: scale(1.08);
}

.product-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.product-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.price {
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--primary-dark);
}

.add-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--bg-main);
    color: var(--primary);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.1rem;
}

.add-btn:hover {
    background: var(--primary);
    color: var(--white);
    transform: rotate(90deg);
}

/* Modals */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(26, 26, 26, 0.6);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    width: 90%;
    max-width: 900px;
    border-radius: 32px;
    position: relative;
    padding: 3rem;
    transform: translateY(30px) scale(0.95);
    transition: var(--transition);
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px rgba(0,0,0,0.15);
}

.modal-overlay.active .modal {
    transform: translateY(0) scale(1);
}

.close-modal {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: var(--bg-main);
    color: var(--text-primary);
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
}

.close-modal:hover {
    background: var(--primary);
    color: var(--white);
    transform: rotate(90deg);
}

/* Cart Sidebar */
.cart-sidebar {
    position: fixed;
    top: 0;
    right: -450px;
    width: 450px;
    height: 100vh;
    background: var(--white);
    z-index: 3000;
    box-shadow: -10px 0 30px rgba(0,0,0,0.08);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.cart-sidebar.active {
    right: 0;
}

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding-right: 10px;
}

.cart-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
}

.cart-item img {
    width: 90px;
    height: 90px;
    object-fit: cover;
    border-radius: 16px;
    background: var(--bg-main);
}

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

.cart-item-info h4 {
    margin-bottom: 0.4rem;
    font-weight: 700;
}

.cart-footer {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--bg-main);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--primary-dark);
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-group input {
    width: 100%;
    padding: 1.2rem;
    border-radius: 16px;
    border: 2px solid var(--border);
    outline: none;
    transition: var(--transition);
    font-family: inherit;
    font-size: 1rem;
    background: var(--bg-main);
}

.form-group input:focus {
    border-color: var(--primary-light);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(226, 75, 75, 0.1);
}

.checkout-btn {
    width: 100%;
    padding: 1.2rem;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 16px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.checkout-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Search Overlay */
.search-overlay {
    position: fixed;
    top: -100%;
    left: 0;
    width: 100%;
    height: 180px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    z-index: 4000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 10%;
    transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.search-overlay.active {
    top: 0;
}

.search-container {
    width: 100%;
    max-width: 800px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.search-container input {
    flex: 1;
    background: none;
    border: none;
    border-bottom: 3px solid var(--border);
    padding: 1rem 0;
    font-size: 2rem;
    font-family: 'Outfit', sans-serif;
    outline: none;
    font-weight: 700;
    transition: var(--transition);
}

.search-container input:focus {
    border-color: var(--primary);
}

.payment-card {
    border: 2px solid var(--border);
    border-radius: 16px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    background: var(--bg-main);
}

.payment-card input {
    position: absolute;
    opacity: 0;
}

.payment-card.active {
    border-color: var(--primary);
    background: rgba(215, 35, 35, 0.05);
    color: var(--primary-dark);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        padding-top: 8rem;
        text-align: center;
    }
    .hero-content p {
        margin: 0 auto 2rem;
    }
    .hero-btns, .hero-badges {
        justify-content: center;
    }
    .hero-image-composite {
        margin-top: 3rem;
        height: 400px;
    }
}

@media (max-width: 768px) {
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }
    .filters {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 1rem;
    }
    .cart-sidebar {
        width: 100%;
        right: -100%;
    }
}