:root {
    --bg-color: #f7f7f5;
    --text-color: #1a1a1a;
    --accent-color: #3d3d3d;
    --charcoal: #1a1a1a;
    --off-white: #f7f7f5;
    --font-serif: 'Cormorant Garamond', serif;
    --font-sans: 'Inter', sans-serif;
    --font-story: 'Noto Serif KR', serif; /* Heavy and sensory font for brand story */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    --transition-base: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

    body {
        font-family: var(--font-sans);
        background-color: var(--bg-color);
        color: var(--text-color);
        line-height: 1.6;
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased;
    }

    a {
        text-decoration: none;
        color: inherit;
    }

    ul {
        list-style: none;
    }

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

@layer components {
    /* Noise Texture */
    .noise-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        opacity: 0.04;
        z-index: 9999;
        background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3BaseFilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    }

    /* Header & Nav */
    .header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        padding: var(--spacing-md);
        z-index: 100;
        mix-blend-mode: difference;
        color: white;
    }

    .nav {
        display: flex;
        justify-content: space-between;
        align-items: center;
        max-width: 1400px;
        margin: 0 auto;
    }

    .nav__logo {
        font-family: var(--font-serif);
        font-size: 1.8rem;
        letter-spacing: 0.2rem;
        font-weight: 500;
    }

    .nav__right {
        display: flex;
        align-items: center;
        gap: var(--spacing-md);
    }

    .nav__toggle {
        display: none;
        flex-direction: column;
        justify-content: space-between;
        width: 30px;
        height: 21px;
        background: none;
        border: none;
        cursor: pointer;
        z-index: 1000;
        padding: 0;
        color: inherit;
    }

    .nav__toggle-line {
        width: 100%;
        height: 2px;
        background-color: currentColor;
        transition: var(--transition-base);
    }

    .nav__links {
        display: flex;
        gap: var(--spacing-md);
    }

    .nav__links a {
        font-size: 0.8rem;
        letter-spacing: 0.1rem;
        font-weight: 400;
        transition: opacity 0.3s ease;
    }

    .nav__links a:hover {
        opacity: 0.6;
    }

    .nav__cart {
        position: relative;
        cursor: pointer;
        font-size: 0.8rem;
        letter-spacing: 0.1rem;
        transition: opacity 0.3s ease;
    }

    .nav__cart:hover {
        opacity: 0.6;
    }

    .cart-count {
        position: absolute;
        top: -10px;
        right: -15px;
        background: white;
        color: black;
        font-size: 0.65rem;
        width: 16px;
        height: 16px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: bold;
    }

    /* Hero Section */
    .hero {
        height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        position: relative;
        overflow: hidden;
        color: white;
        background-color: #1a1a1a; /* Dark fallback to prevent gray flicker */
    }

    .hero__content {
        position: relative;
        z-index: 10;
        max-width: 800px;
        padding: 0 20px;
    }

    .hero__title {
        font-family: var(--font-serif);
        font-size: clamp(3rem, 10vw, 8rem);
        line-height: 0.9;
        margin-bottom: var(--spacing-md);
        font-weight: 300;
        font-style: italic;
        text-shadow: 0 4px 30px rgba(0,0,0,0.3);
    }

    .hero__subtitle {
        font-size: 1rem;
        letter-spacing: 0.3rem;
        margin-bottom: var(--spacing-lg);
        opacity: 0.9;
    }

    .btn {
        display: inline-block;
        padding: 1rem 3rem;
        border: 1px solid currentColor;
        transition: var(--transition-base);
        font-size: 0.8rem;
        letter-spacing: 0.2rem;
        text-decoration: none;
        cursor: pointer;
        background: transparent;
        font-family: inherit;
        text-transform: uppercase;
    }

    .btn--primary {
        border-color: currentColor;
        color: inherit;
    }

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

    .btn--secondary {
        border-color: var(--charcoal);
        color: var(--charcoal);
    }

    .btn--secondary:hover {
        background-color: var(--charcoal);
        color: var(--off-white);
    }

    .hero__slider {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: 1;
    }

    .hero__slide {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-size: cover;
        background-position: center;
        opacity: 0;
        transition: opacity 2s ease-in-out, transform 8s linear;
        transform: scale(1.1);
    }

    .hero__slide.active {
        opacity: 1;
        transform: scale(1);
        transition: opacity 1.5s ease-in-out, transform 8s linear; /* Faster initial fade */
    }

    .hero::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.4);
        z-index: 2;
    }

    /* Sections */
    .section {
        padding: var(--spacing-xl) var(--spacing-lg);
        max-width: 1400px;
        margin: 0 auto;
    }

    .section__header {
        text-align: center;
        margin-bottom: var(--spacing-xl);
    }

    .section__title {
        font-family: var(--font-serif);
        font-size: 3rem;
        margin-bottom: var(--spacing-sm);
        font-weight: 400;
    }

    .section__desc {
        font-size: 0.9rem;
        letter-spacing: 0.1rem;
        opacity: 0.6;
    }

    /* Product Grid & Web Components */
    .product-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: var(--spacing-lg);
    }

    /* Story Section */
    .story-layout {
        display: grid;
        grid-template-columns: 1fr 1fr;
        align-items: center;
        gap: var(--spacing-lg);
    }

    .story__title {
        font-family: var(--font-serif);
        font-size: 3.5rem;
        margin-bottom: var(--spacing-md);
        font-weight: 400;
    }

    .story__desc-container {
        max-width: 550px;
    }

    .story__p {
        font-family: var(--font-story);
        font-size: 1.1rem;
        line-height: 1.8;
        margin-bottom: 1.8rem;
        opacity: 0.9;
        word-break: keep-all;
        font-weight: 700; /* Bolder for impact */
        color: #1a1a1a;
    }

    .story__p:last-child {
        margin-bottom: 0;
    }

    .story__image img {
        width: 100%;
        height: 600px;
        object-fit: cover;
        box-shadow: 0 40px 100px rgba(0,0,0,0.1);
    }

    /* Footer */
    .footer {
        padding: var(--spacing-lg);
        text-align: center;
        border-top: 1px solid rgba(0,0,0,0.05);
    }

    .footer__logo {
        font-family: var(--font-serif);
        font-size: 1.5rem;
        letter-spacing: 0.2rem;
        margin-bottom: var(--spacing-sm);
    }

    .footer p {
        font-size: 0.7rem;
        letter-spacing: 0.1rem;
        opacity: 0.5;
    }
}

/* Product Detail Overlay */
.detail-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0);
    visibility: hidden;
    z-index: 2000;
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    backdrop-filter: blur(0px);
}

.detail-overlay.active {
    visibility: visible;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
}

.detail-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}

.detail-overlay.active .detail-container {
    opacity: 1;
    transform: translateY(0);
}

.detail-content {
    max-width: 1100px;
    width: 100%;
    background: transparent;
    position: relative;
}

.detail-close {
    position: absolute;
    top: -3rem;
    right: 0;
    background: none;
    border: none;
    font-size: 2.5rem;
    cursor: pointer;
    font-weight: 300;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.detail-image-section img {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
    box-shadow: 0 30px 60px rgba(0,0,0,0.1);
}

.detail-info-section {
    text-align: left;
}

.detail-name {
    font-family: 'Cormorant Garamond', serif;
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
    line-height: 1.1;
}

.detail-desc-short {
    font-size: 1rem;
    opacity: 0.6;
    margin-bottom: 1.5rem;
    letter-spacing: 0.05rem;
}

.detail-price {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 2rem;
    letter-spacing: 0.1rem;
}

.detail-long-desc {
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    opacity: 0.8;
    word-break: keep-all;
}

.detail-notes {
    margin-bottom: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(0,0,0,0.1);
}

.detail-notes h4 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    margin-bottom: 0.5rem;
}

.detail-notes p {
    font-size: 0.9rem;
    opacity: 0.6;
}

.detail-actions {
    display: flex;
    gap: 1rem;
}

.detail-actions .btn {
    flex: 1;
    text-align: center;
}

/* Cart Drawer */
.cart-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    opacity: 0;
    visibility: hidden;
    z-index: 2500;
    transition: all 0.4s ease;
}

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

.cart-drawer {
    position: fixed;
    top: 0;
    right: -450px;
    width: 450px;
    height: 100%;
    background: var(--off-white);
    z-index: 3000;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    padding: 3rem;
    box-shadow: -10px 0 30px rgba(0,0,0,0.05);
}

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

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.cart-header h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2rem;
}

.cart-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

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

.cart-items::-webkit-scrollbar {
    width: 2px;
}

.cart-items::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.1);
}

.cart-empty {
    text-align: center;
    margin-top: 4rem;
    opacity: 0.5;
}

.cart-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.cart-item-img {
    width: 100px;
    aspect-ratio: 1;
    object-fit: cover;
}

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

.cart-item-name {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    margin-bottom: 0.2rem;
}

.cart-item-price {
    font-size: 0.9rem;
    opacity: 0.6;
    margin-bottom: 1rem;
}

.cart-item-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.cart-item-controls button {
    background: none;
    border: 1px solid rgba(0,0,0,0.1);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cart-item-controls button:hover {
    border-color: var(--charcoal);
}

.cart-item-remove {
    margin-left: auto;
    font-size: 0.75rem;
    text-decoration: underline;
    background: none;
    border: none !important;
    width: auto !important;
    opacity: 0.5;
    cursor: pointer;
}

.cart-footer {
    padding-top: 2rem;
    border-top: 1px solid rgba(0,0,0,0.1);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 1.3rem;
    margin-bottom: 2rem;
    font-weight: 500;
}

.cart-footer .btn {
    width: 100%;
    text-align: center;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--charcoal);
    color: var(--off-white);
    padding: 1.2rem 2.5rem;
    font-size: 0.85rem;
    letter-spacing: 0.05rem;
    z-index: 4000;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    opacity: 0;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.toast.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .story-layout {
        grid-template-columns: 1fr;
    }
    
    .hero__title {
        font-size: 4rem;
    }

    .header {
        mix-blend-mode: normal;
        background: rgba(247, 247, 245, 0.9);
        color: #000; /* Set header text color to black in mobile */
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .nav__toggle {
        display: flex;
        width: 24px;
        height: 16px;
    }

    .nav__links {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--bg-color);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--spacing-lg);
        transform: translateY(-100%);
        transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: -1;
    }

    .nav__links.active {
        transform: translateY(0);
    }

    .nav__links a {
        font-size: 2rem;
        font-family: var(--font-serif);
    }

    .detail-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .detail-container {
        padding: 1rem;
        align-items: flex-start;
        overflow-y: auto;
    }

    .detail-content {
        padding-top: 3rem;
    }

    .detail-name {
        font-size: 2.5rem;
    }

    .cart-drawer {
        width: 100%;
        right: -100%;
        padding: 2rem;
    }
}