/* ===== Lsushine - Refined Minimalist Design ===== */

/* Using system fonts for zero legal risk and faster loading */

/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --color-cream: #FAF8F5;
    --color-white: #FFFFFF;
    --color-forest: #2C3E2D;
    --color-sage: #7A8B7C;
    --color-bronze: #A67C52;
    --color-bronze-light: #C4A484;
    --color-stone: #E8E4DD;
    --color-text: #2D2D2D;
    --color-text-light: #6B6B6B;
    --color-accent: #D4A574;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;

    /* Typography */
    --font-display: 'Georgia', 'Times New Roman', Times, serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;

    /* Layout */
    --max-width: 1400px;
    --border-radius: 12px;

    /* Transitions */
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-cream);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

/* ===== Container ===== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

/* ===== Header ===== */
.header {
    background: rgba(250, 248, 245, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--space-sm) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(166, 124, 82, 0.1);
}

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

.logo {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 600;
    color: var(--color-forest);
    letter-spacing: -0.02em;
}

.nav {
    display: flex;
    gap: var(--space-md);
}

.nav a {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-bronze);
    transition: var(--transition-fast);
}

.nav a:hover::after,
.nav a.active::after {
    width: 100%;
}

.nav a:hover,
.nav a.active {
    color: var(--color-forest);
}

.back-link {
    display: inline-flex;
    align-items: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-bronze);
    transition: var(--transition-fast);
}

.back-link:hover {
    color: var(--color-forest);
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(135deg, var(--color-forest) 0%, #3D4E3F 100%);
    color: var(--color-white);
    padding: var(--space-xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(212, 165, 116, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(42px, 6vw, 72px);
    font-weight: 600;
    line-height: 1.1;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.03em;
    position: relative;
}

.hero p {
    font-size: 18px;
    font-weight: 400;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

/* ===== Main Content ===== */
.main {
    padding: var(--space-lg) 0;
}

/* ===== Product Grid ===== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-md);
}

.product-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
    transition: var(--transition);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-bronze), var(--color-bronze-light));
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.product-card:hover::before {
    opacity: 1;
}

.product-card__image {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    transition: var(--transition);
}

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

.product-card__title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    color: var(--color-forest);
    padding: var(--space-sm) var(--space-sm) var(--space-xs);
    line-height: 1.3;
}

.product-card__desc {
    font-size: 14px;
    color: var(--color-text-light);
    padding: 0 var(--space-sm);
    margin-bottom: var(--space-sm);
    line-height: 1.6;
}

.product-card .btn {
    margin: 0 var(--space-sm) var(--space-sm);
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: none;
}

.btn--primary {
    background: var(--color-forest);
    color: var(--color-white);
}

.btn--primary:hover {
    background: var(--color-bronze);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(166, 124, 82, 0.3);
}

.btn--large {
    padding: 18px 40px;
    font-size: 16px;
}

.btn--amazon {
    background: var(--color-bronze);
    color: var(--color-white);
    display: block;
    width: 100%;
}

.btn--amazon:hover {
    background: var(--color-forest);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(44, 62, 45, 0.3);
}

/* ===== Product Detail Page ===== */
.product-detail {
    padding: var(--space-lg) 0;
}

.product-detail__layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: start;
}

/* ===== Image Gallery ===== */
.gallery {
    position: sticky;
    top: calc(var(--space-lg) + 60px);
}

.gallery__main {
    margin-bottom: var(--space-sm);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    background: var(--color-white);
}

.gallery__main-image {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    transition: var(--transition);
}

.gallery__thumbnails {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--space-xs);
}

.gallery__thumb {
    border: 2px solid transparent;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    padding: 0;
    background: var(--color-white);
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.gallery__thumb:hover {
    transform: scale(1.05);
}

.gallery__thumb--active {
    border-color: var(--color-bronze);
    box-shadow: 0 4px 12px rgba(166, 124, 82, 0.3);
}

.gallery__thumb img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

/* ===== Product Information ===== */
.product-info {
    padding: var(--space-sm);
}

.product-info__title {
    font-family: var(--font-display);
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 600;
    color: var(--color-forest);
    margin-bottom: var(--space-sm);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.product-info__price {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-bronze);
    margin-bottom: var(--space-md);
    font-family: var(--font-display);
}

.product-info__bullets {
    list-style: none;
    margin-bottom: var(--space-md);
}

.product-info__bullets li {
    position: relative;
    padding-left: 32px;
    margin-bottom: var(--space-sm);
    color: var(--color-text-light);
    line-height: 1.6;
}

.product-info__bullets li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: var(--color-bronze);
    border-radius: 50%;
}

/* ===== Footer ===== */
.footer {
    background: var(--color-forest);
    color: var(--color-white);
    padding: var(--space-lg) 0;
    margin-top: var(--space-xl);
    text-align: center;
}

.footer p {
    font-size: 14px;
    opacity: 0.8;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.product-card:nth-child(1) { animation-delay: 0.1s; }
.product-card:nth-child(2) { animation-delay: 0.2s; }
.product-card:nth-child(3) { animation-delay: 0.3s; }
.product-card:nth-child(4) { animation-delay: 0.4s; }
.product-card:nth-child(5) { animation-delay: 0.5s; }

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .product-detail__layout {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .gallery {
        position: static;
    }
}

@media (max-width: 768px) {
    :root {
        --space-lg: 3rem;
        --space-xl: 4rem;
    }

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

    .hero h1 {
        font-size: 36px;
    }

    .hero p {
        font-size: 16px;
    }

    .logo {
        font-size: 24px;
    }

    .gallery__thumbnails {
        grid-template-columns: repeat(4, 1fr);
    }

    .product-info__title {
        font-size: 26px;
    }

    .product-info__price {
        font-size: 26px;
    }
}