:root {
    /* Colors */
    --clr-dark-bg: #0B1A12;
    --clr-dark-bg-alt: #0F2A1C;
    --clr-light-bg: #F4F1E8;
    --clr-accent: #B9FF3D;
    --clr-accent-hover: #A0E625;
    
    --clr-text-light: #FFFFFF;
    --clr-text-light-muted: #A8B8AD;
    --clr-text-dark: #1C2520;
    --clr-text-dark-muted: #4A5850;
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
    
    /* Shadows */
    --shadow-soft: 0 10px 30px rgba(0,0,0,0.05);
    --shadow-hover: 0 15px 40px rgba(0,0,0,0.08);
    
    /* Border Radius */
    --radius-md: 12px;
    --radius-lg: 24px;
    --radius-pill: 50px;
}

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

body {
    font-family: var(--font-body);
    color: var(--clr-text-dark);
    background-color: var(--clr-light-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

/* Utilities */
.dark-bg {
    background-color: var(--clr-dark-bg);
    color: var(--clr-text-light);
}

.light-bg {
    background-color: var(--clr-light-bg);
    color: var(--clr-text-dark);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-padding {
    padding: var(--space-xl) 2rem;
}

.pb-padding {
    padding-bottom: var(--space-xl);
}

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

/* Typography */
h1, h2, h3, h4, .font-heading {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.2;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--clr-text-dark-muted);
    max-width: 600px;
}

/* Buttons */
.btn-primary {
    display: inline-block;
    background-color: var(--clr-accent);
    color: var(--clr-dark-bg);
    padding: 1rem 2rem;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 0.95rem;
    transition: background-color 0.3s ease, transform 0.3s ease;
    border: none;
    cursor: pointer;
}

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

/* Header */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 4rem;
    position: fixed; /* Changed to fixed for smooth sticky */
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
    transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.scrolled {
    background-color: rgba(11, 26, 18, 0.9);
    backdrop-filter: blur(10px);
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.center-nav {
    display: flex;
    gap: 3rem;
}

.center-nav a {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.center-nav a:hover {
    color: var(--clr-accent);
}

.right-utilities {
    display: flex;
    gap: 2rem;
}

.util-link {
    font-size: 0.9rem;
    font-weight: 500;
}

/* Hero Section */
.hero-scroll-container {
    height: 300vh; /* Scroll duration for animation */
    position: relative;
    background-color: var(--clr-dark-bg);
}

.sticky-hero {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
}

.hero-canvas-full {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    object-fit: cover;
    z-index: 0;
}

.hero-container-overlay {
    position: relative;
    z-index: 2;
    height: 100vh;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 4rem;
    max-width: 1600px;
    margin: 0 auto;
}

.hero-left {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    max-width: 500px;
}

.main-headline.left-aligned {
    font-size: 5rem;
    margin-bottom: 1rem;
    text-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.hero-copy.stacked-copy {
    color: var(--clr-text-light-muted);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 400px;
}

.japanese-text-prominent {
    font-family: sans-serif;
    font-size: 1.5rem;
    letter-spacing: 12px;
    color: rgba(255,255,255,0.8);
    margin-bottom: 2rem;
}

.hero-btn {
    margin-top: 1rem;
}

.hero-right-arrow {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    height: 100%;
    padding-right: 2rem;
}

.scroll-arrow-wrap {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-accent);
    cursor: pointer;
    transition: opacity 0.3s ease, transform 0.3s ease;
    animation: floatArrow 2s infinite ease-in-out;
}

.scroll-arrow-wrap:hover {
    background: rgba(255,255,255,0.2);
    transform: scale(1.1);
}

.scroll-arrow-svg {
    width: 24px;
    height: 24px;
}

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

/* Starter Kit Section */
.photo-strip {
    position: relative;
    width: 100%;
    height: 600px;
    border-radius: var(--radius-lg);
    background: #e0dcd0; /* Placeholder if image doesn't load */
}

.strip-image {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
}

.price-anchor {
    position: absolute;
    top: 2rem;
    left: 2rem;
    background: var(--clr-light-bg);
    padding: 1.5rem;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 120px;
    height: 120px;
    box-shadow: var(--shadow-soft);
    z-index: 2;
}

.price-val {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 600;
    line-height: 1;
}

.price-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.5rem;
    color: var(--clr-text-dark-muted);
}

.callout {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(5px);
    padding: 1rem;
    border-radius: var(--radius-pill);
    box-shadow: var(--shadow-soft);
    transition: transform 0.3s ease;
}

.callout:hover {
    transform: translateY(-5px);
}

.callout .dot {
    width: 12px;
    height: 12px;
    background: var(--clr-accent);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(185, 255, 61, 0.3);
}

.callout h4 {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
}

.callout p {
    font-size: 0.8rem;
    color: var(--clr-text-dark-muted);
}

/* Positioning callouts arbitrarily over the strip */
.callout-1 { top: 15%; right: 10%; }
.callout-2 { bottom: 20%; left: 30%; }
.callout-3 { bottom: 15%; right: 20%; }

/* Benefits Section */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.benefits-images {
    display: flex;
    gap: 2rem;
}

.image-tile {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.image-tile:nth-child(2) {
    transform: translateY(40px);
}

.image-tile img {
    height: 400px;
}

.benefit-label {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    background: var(--clr-light-bg);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-pill);
    font-size: 0.85rem;
    font-weight: 500;
}

.benefit-columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.benefit-col {
    background: #fff;
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    transition: transform 0.3s ease;
}

.benefit-col:hover {
    transform: translateY(-5px);
}

.icon-circle {
    width: 60px;
    height: 60px;
    background: var(--clr-light-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.benefit-col h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.benefit-col p {
    color: var(--clr-text-dark-muted);
    font-size: 0.95rem;
}

/* Product Collection Section */
.product-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.mini-cards-col {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.product-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-soft);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: left;
}

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

.product-card.mini {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.product-card.mini img {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
}

.card-info h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.price {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--clr-dark-bg);
}

.featured-product-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 3rem;
    display: flex;
    align-items: center;
    gap: 3rem;
    box-shadow: var(--shadow-soft);
}

.circle-product {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    box-shadow: var(--shadow-soft);
}

.feat-info {
    text-align: left;
}

.feat-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.feat-info p {
    color: var(--clr-text-dark-muted);
    margin-bottom: 2rem;
}

.feat-bottom {
    display: flex;
    align-items: center;
    gap: 2rem;
}

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

.accessories-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.product-card.small img {
    width: 100%;
    height: 200px;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}

.explore-btn-wrap {
    margin-top: 2rem;
}

/* Essentials Section */
.essentials-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.feature-card img {
    height: 500px;
    transition: transform 0.5s ease;
}

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

.card-content {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.card-content h3 {
    font-size: 1.5rem;
}

.price-marker {
    background: var(--clr-light-bg);
    color: var(--clr-text-dark);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-pill);
    font-weight: 600;
}

/* Footer */
.site-footer {
    padding-top: var(--space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 2fr 1fr;
    gap: 4rem;
    padding-bottom: var(--space-md);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.offer-line {
    font-size: 3.5rem;
    margin-bottom: 2rem;
    line-height: 1.1;
}

.footer-links-area {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-col h4 {
    font-family: var(--font-body);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    color: var(--clr-text-light-muted);
}

.footer-col a, .footer-col p {
    display: block;
    color: var(--clr-text-light);
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
    opacity: 0.8;
}

.footer-col a:hover {
    opacity: 1;
    color: var(--clr-accent);
}

.footer-decorative {
    display: flex;
    justify-content: flex-end;
}

.footer-img {
    width: 200px;
    height: 250px;
    border-radius: var(--radius-md);
}

.footer-bottom {
    padding: 2rem;
    text-align: center;
    color: var(--clr-text-light-muted);
    font-size: 0.9rem;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .site-header {
        padding: 1.5rem 2rem;
    }
    .hero-container-overlay {
        padding: 0 2rem;
        flex-direction: column;
        justify-content: center;
        text-align: center;
    }
    .hero-left {
        align-items: center;
    }
    .main-headline.left-aligned {
        font-size: 4rem;
        text-align: center;
    }
    .hero-copy.stacked-copy {
        text-align: center;
        margin-bottom: 2rem;
    }
    .hero-right-arrow {
        position: absolute;
        bottom: 2rem;
        right: 50%;
        transform: translateX(50%);
        padding-right: 0;
    }
    .scroll-arrow-wrap {
        margin: 0 auto;
    }

    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .featured-product-card {
        flex-direction: column;
        text-align: center;
    }
    
    .feat-bottom {
        justify-content: center;
    }
    
    .split-layout {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .footer-links-area {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .site-header {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        position: absolute;
    }
    
    .center-nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    .right-utilities {
        justify-content: center;
    }
    
    .main-headline.left-aligned {
        font-size: 3rem;
    }

    .benefits-images {
        flex-direction: column;
    }
    
    .image-tile:nth-child(2) {
        transform: none;
    }
    
    .benefit-columns {
        grid-template-columns: 1fr;
    }
    
    .accessories-row {
        grid-template-columns: 1fr;
    }
    
    .essentials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links-area {
        grid-template-columns: 1fr;
        grid-column: 1;
    }

    .price-anchor {
        top: 1rem;
        left: 1rem;
        width: 80px;
        height: 80px;
        padding: 1rem;
    }
    .price-val {
        font-size: 1.5rem;
    }
    .price-label {
        font-size: 0.6rem;
    }
    
    .callout {
        position: relative;
        top: auto !important;
        left: auto !important;
        right: auto !important;
        bottom: auto !important;
        margin: 1rem auto;
        width: 90%;
    }
    
    .photo-strip {
        height: auto;
        display: flex;
        flex-direction: column;
        padding: 0 0 2rem 0;
        background: transparent;
    }
    
    .circle-product {
        width: 100%;
        height: auto;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .main-headline.left-aligned {
        font-size: 2.5rem;
    }
    .japanese-text-prominent {
        font-size: 1.2rem;
        letter-spacing: 8px;
    }
    .offer-line {
        font-size: 2.5rem;
    }
    .section-title {
        font-size: 2.2rem;
    }
    .hero-copy.stacked-copy {
        font-size: 1rem;
    }
}