:root {
    --primary-text: #1a1a1a;
    --secondary-text: #767676;
    --accent: #000000;
    --bg-color: #f7f7f7;
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

html, body {
    overflow-x: hidden;
    width: 100%;
}

body {
    background-color: var(--bg-color);
    color: var(--primary-text);
    height: auto;
    min-height: 100vh;
}

/* Glassmorphism utility */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--primary-text);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    position: relative;
    padding-bottom: 0.2rem;
}

.nav-links a.active { border-bottom: 2px solid var(--accent); }
.nav-links a:hover { color: var(--secondary-text); }

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

.nav-actions button {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    position: relative;
    transition: transform 0.2s;
}

.nav-actions button:hover { transform: scale(1.1); }

.cart-count {
    position: absolute;
    top: -5px;
    right: -8px;
    background: red;
    color: white;
    font-size: 0.6rem;
    border-radius: 50%;
    padding: 0.1rem 0.3rem;
    font-weight: bold;
}

/* Main Layout Setup */
.page-section {
    min-height: 100vh;
    padding-top: 120px;
    padding-bottom: 4rem;
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
}

.text-center { text-align: center; }

.main-layout {
    display: flex;
    height: 100vh;
    padding-top: 100px; /* spacing for nav */
    position: relative;
    max-width: 1600px;
    margin: 0 auto;
}

/* Hero Background Image */
.hero-image-container {
    position: absolute;
    left: 25%;
    top: 10%;
    height: 90vh;
    width: 50%;
    z-index: -1;
    display: flex;
    justify-content: center;
}

.hero-image {
    height: 100%;
    max-height: 100%;
    object-fit: cover;
}

/* Left Content Area */
.left-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 4rem;
    z-index: 2;
    background: linear-gradient(to right, rgba(247,247,247,1) 30%, rgba(247,247,247,0) 100%);
}

.product-title {
    font-size: 5rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
    position: relative;
}

/* subtle accent line behind title */
.product-title::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 10px;
    height: 100%;
    width: 15px;
    background-color: var(--accent);
    opacity: 0.1;
    z-index: -1;
}

.product-desc {
    color: var(--secondary-text);
    max-width: 300px;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 3rem;
}

.product-price {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.color-selection { margin-bottom: 3rem; }
.color-selection span {
    font-weight: 600;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 0.8rem;
}

.colors { display: flex; gap: 1rem; }
.color-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 2px solid white;
    box-shadow: 0 0 0 1px #ccc;
}
.color-dot.active { box-shadow: 0 0 0 2px var(--accent); transform: scale(1.1); }
.color-dot:hover { transform: scale(1.1); }

.add-to-cart-main {
    padding: 1rem 2rem;
    background: var(--accent);
    color: white;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 30px;
    max-width: 200px;
    margin-bottom: 4rem;
    transition: background 0.3s, transform 0.2s;
}

.add-to-cart-main:hover {
    background: #333;
    transform: translateY(-2px);
}

.social-links {
    display: flex;
    gap: 1.5rem;
    color: var(--secondary-text);
    font-size: 1.2rem;
}

.social-links i { cursor: pointer; transition: color 0.2s; }
.social-links i:hover { color: var(--accent); }

/* Right Content Area */
.right-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    padding: 0 4rem;
    gap: 4rem;
}

/* Drop Capsule */
.drop-capsule {
    display: flex;
    align-items: center;
    padding: 0.8rem;
    border-radius: 50px;
    padding-left: 2rem;
    gap: 2rem;
    transform-style: preserve-3d;
    transform: perspective(1000px);
    transition: transform 0.3s ease;
}

.capsule-text h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.2rem; }
.capsule-text p { font-size: 0.8rem; color: var(--secondary-text); }

.capsule-visual {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
}

.capsule-visual img { width: 100%; height: 100%; object-fit: cover; }
.play-icon {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 1.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

/* Secondary Product Card */
.secondary-product-card {
    display: flex;
    width: 450px;
    height: 220px;
    position: relative;
    overflow: hidden;
}

.sec-text {
    flex: 1;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.sec-text h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.sec-text p {
    font-size: 0.8rem;
    color: var(--secondary-text);
    margin-bottom: 1.5rem;
    line-height: 1.4;
}

.sec-price {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.sec-add {
    background: transparent;
    border: 1px solid var(--accent);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s;
    width: max-content;
}
.sec-add:hover { background: var(--accent); color: white; }

.sec-image {
    width: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sec-image img { width: 100%; object-fit: contain; }

.sec-controls {
    display: flex;
    flex-direction: column;
    background: #e6e6e6;
}

.sec-controls button {
    flex: 1;
    border: none;
    background: transparent;
    width: 40px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: background 0.2s;
}

.sec-controls button:hover { background: #d0d0d0; }

/* Modals & Overlays */
.overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(5px);
    z-index: 99;
    display: none;
    opacity: 0;
    transition: opacity 0.3s;
}
.overlay.active { display: block; opacity: 1; }

/* Cart Modal */
.cart-modal {
    position: fixed;
    top: 0; right: -400px;
    width: 400px; height: 100%;
    background: white;
    z-index: 100;
    box-shadow: -5px 0 30px rgba(0,0,0,0.1);
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex; flex-direction: column;
}

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

.cart-header { padding: 2rem; display: flex; justify-content: space-between; border-bottom: 1px solid #eee; }
.cart-header button { background: none; border: none; font-size: 1.5rem; cursor: pointer; }

.cart-items { flex: 1; overflow-y: auto; padding: 2rem; }

.cart-item {
    display: flex; gap: 1rem; margin-bottom: 1.5rem; align-items: center; border-bottom: 1px solid #f0f0f0; padding-bottom: 1rem;
}
.cart-item img { width: 60px; height: 60px; object-fit: cover; border-radius: 10px; }
.cart-item-details { flex: 1; }
.cart-item-details h4 { font-size: 0.9rem; margin-bottom: 0.2rem; }
.cart-item-price { font-weight: bold; }
.remove-btn { background: none; border: none; color: #ff4d4d; cursor: pointer; font-size: 0.8rem; }

.cart-footer { padding: 2rem; border-top: 1px solid #eee; background: #fafafa; }
.cart-total { font-size: 1.2rem; font-weight: bold; margin-bottom: 1rem; display: flex; justify-content: space-between; }
.checkout-btn { width: 100%; padding: 1rem; background: var(--accent); color: white; border: none; font-weight: bold; border-radius: 8px; cursor: pointer; }
.checkout-btn:hover { background: #333; }

/* Auth Modal */
.auth-modal {
    position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(0.9);
    z-index: 100;
    width: 350px;
    display: none;
    opacity: 0;
    transition: all 0.3s;
}

.auth-modal.active { display: block; opacity: 1; transform: translate(-50%, -50%) scale(1); }

.auth-content { padding: 2rem; position: relative; background: rgba(255, 255, 255, 0.95); }

.close-auth { position: absolute; top: 1rem; right: 1rem; background: none; border: none; font-size: 1.2rem; cursor: pointer; }

.auth-tabs { display: flex; margin-bottom: 2rem; }
.auth-tabs button {
    flex: 1; padding: 0.5rem; background: none; border: none;
    border-bottom: 2px solid transparent; cursor: pointer; font-weight: bold; color: var(--secondary-text);
}
.auth-tabs button.active { border-bottom: 2px solid var(--accent); color: var(--primary-text); }

.auth-form { display: none; flex-direction: column; gap: 1rem; }
.auth-form.active { display: flex; }

.auth-form input { padding: 0.8rem; border: 1px solid #ccc; border-radius: 8px; font-size: 0.9rem; }
.auth-form button { padding: 0.8rem; background: var(--accent); color: white; border: none; border-radius: 8px; font-weight: bold; cursor: pointer; }

.auth-message { margin-top: 1rem; font-size: 0.8rem; text-align: center; color: green; font-weight: 500;}

/* Animations */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInLeft { from { opacity: 0; transform: translateX(-40px); } to { opacity: 1; transform: translateX(0); } }
@keyframes fadeInRight { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }

/* Lightweight 3D Floating Animation */
@keyframes float3D {
    0% { transform: translateY(0px) rotateX(0deg) rotateY(0deg); box-shadow: 0 15px 35px rgba(0,0,0,0.1); }
    50% { transform: translateY(-15px) rotateX(5deg) rotateY(2deg); box-shadow: 0 35px 45px rgba(0,0,0,0.05); }
    100% { transform: translateY(0px) rotateX(0deg) rotateY(0deg); box-shadow: 0 15px 35px rgba(0,0,0,0.1); }
}

.float-3d {
    animation: float3D 6s ease-in-out infinite;
    transform-style: preserve-3d;
}

.fade-in { animation: fadeIn 1s ease-out forwards; }
.fade-in-down { animation: fadeInDown 0.8s ease-out forwards; }
.fade-in-left { animation: fadeInLeft 0.8s ease-out forwards; }
.fade-in-right { animation: fadeInRight 0.8s ease-out forwards; }
img.smooth-img { transition: opacity 0.5s ease-in-out; opacity: 0; } img.smooth-img.loaded { opacity: 1; }

/* --- Responsive Design --- */
@media (max-width: 768px) {
    .navbar {
        padding: 1rem 1.5rem;
        justify-content: space-between;
    }

    .hamburger {
        display: block !important;
        font-size: 1.8rem;
        cursor: pointer;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2.5rem;
        transition: 0.4s ease-in-out;
        z-index: 1000;
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links a {
        font-size: 1.2rem;
    }

    .main-layout {
        flex-direction: column;
        height: auto;
        padding: 80px 1.5rem 4rem;
    }

    .hero-image-container {
        position: relative;
        left: 0;
        top: 0;
        width: 100%;
        height: 400px;
        order: 1;
        margin-bottom: 2rem;
    }

    .hero-image {
        width: 100%;
        height: 100%;
        object-fit: contain;
    }

    .left-content {
        order: 2;
        padding: 0;
        background: none;
        text-align: center;
        align-items: center;
    }

    .product-title {
        font-size: clamp(2.5rem, 8vw, 3.5rem);
        margin-bottom: 1rem;
    }

    .product-title::before {
        display: none;
    }

    .product-desc {
        max-width: 100%;
        margin-bottom: 2rem;
    }

    .product-price {
        font-size: 2.5rem;
    }

    .add-to-cart-main {
        width: 100%;
        max-width: 100%;
    }

    .right-content {
        order: 3;
        padding: 0;
        align-items: center;
        margin-top: 4rem;
    }

    .secondary-product-card {
        width: 100%;
        height: auto;
        flex-direction: column-reverse;
    }

    .sec-text {
        padding: 1.5rem;
        align-items: center;
        text-align: center;
    }

    .sec-image {
        width: 100%;
        height: 250px;
        padding: 1rem;
    }

    .sec-controls {
        flex-direction: row;
        width: 100%;
        height: 40px;
    }

    .page-section {
        padding: 100px 1.5rem 4rem;
    }

    .page-title {
        font-size: 2.5rem !important;
    }

    .product-page-container {
        margin: 100px auto 4rem;
        gap: 2rem;
        flex-direction: column;
    }

    .product-gallery {
        width: 100%;
    }

    .product-info {
        width: 100%;
        text-align: center;
        align-items: center;
    }

    .product-title {
        font-size: 2.2rem;
    }

    .cart-modal {
        width: 100%;
        right: -100%;
    }
}

/* --- Shop Card Styles --- */
.shop-card {
    flex-direction: column;
    height: auto;
    width: 300px;
    padding: 2rem;
    align-items: center;
    text-align: center;
}

.shop-card-link {
    text-decoration: none;
    color: inherit;
    width: 100%;
    display: block;
    cursor: pointer;
}

.shop-card-img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.shop-card-title {
    transition: color 0.2s;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.shop-card-title:hover {
    color: var(--accent);
}

.shop-card-price {
    margin: 0.5rem 0 1.5rem;
    font-weight: 700;
    font-size: 1.1rem;
}

.original-price-small {
    text-decoration: line-through;
    opacity: 0.6;
    margin-right: 8px;
    font-size: 0.9rem;
    font-weight: 400;
}

.shop-card-btn {
    width: 100%;
}

@media (max-width: 480px) {
    .shop-card {
        width: 100%;
    }
}