:root {
    --bg-color: #f4f4f0; /* Slight gray/beige, not pure white */
    --text-color: #333333;
    --accent-color: #5c5c5c;
    --font-main: 'Shippori Mincho', serif;
    --font-reading: 'Noto Serif JP', serif;
    --transition-speed: 1s;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-reading);
    line-height: 2.2; /* Spacious line height */
    letter-spacing: 0.1em; /* Open tracking */
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3 {
    font-family: var(--font-main);
    font-weight: 500;
    margin-bottom: 2rem;
}

/* Utilities */
.text-center { text-align: center; }
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity var(--transition-speed), transform var(--transition-speed); }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in-up { opacity: 0; transform: translateY(40px); transition: opacity var(--transition-speed), transform var(--transition-speed); }
.fade-in-up.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.5s; }

/* Header */
.main-header {
    padding: 3rem 0;
    text-align: center;
    position: absolute;
    width: 100%;
    top: 0;
    z-index: 10;
}

.logo {
    font-size: 1.5rem;
    letter-spacing: 0.2em;
    font-weight: 400;
}

/* Sections Global */
.section {
    padding: 8rem 2rem;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.content-wrapper {
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
}

/* Hero */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding-top: 60px;
}

.hero-image-container {
    width: 80%;
    max-width: 600px;
    margin-bottom: 3rem;
    overflow: hidden;
    filter: sepia(20%) grayscale(30%) contrast(90%); /* Muted filter */
}

.hero-img {
    width: 100%;
    display: block;
    opacity: 0.9;
}

.hero-text {
    font-family: var(--font-main);
    font-size: 1.2rem;
    text-align: center;
    line-height: 2.5;
}

/* Empathy */
.empathy {
    background-color: #efefeb; /* Very subtle shift */
}

.empathy-list {
    list-style: none;
    padding: 0;
}

.empathy-list li {
    margin-bottom: 2rem;
    position: relative;
    padding-left: 1.5em;
}

.empathy-list li::before {
    content: "・";
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

/* Insight */
.insight {
    padding: 0;
    min-height: auto;
}

.insight .content-wrapper {
    padding: 8rem 2rem;
}

.image-breaker {
    width: 100%;
    height: 60vh;
    background-size: cover;
    background-position: center;
    background-attachment: fixed; /* Parallaxish */
    filter: grayscale(80%) brightness(80%);
}

/* Stance */
.stance h2 {
    font-size: 1.4rem;
    text-align: center;
    margin-bottom: 4rem;
}

.brand-name {
    font-size: 1.4rem;
    margin: 3rem 0 1rem;
    font-family: var(--font-main);
}

/* Creator */
.two-col {
    display: flex;
    gap: 4rem;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.two-col.reverse {
    flex-direction: row-reverse;
}

.col-text {
    flex: 1;
}

.col-image {
    flex: 1;
}

.col-image img {
    width: 100%;
    filter: grayscale(40%);
    display: block;
}

/* Product */
.gallery {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    padding: 2rem;
    margin-top: 4rem;
    /* Hide scrollbar */
    scrollbar-width: none; 
    -ms-overflow-style: none;
}
.gallery::-webkit-scrollbar { 
    display: none; 
}

.gallery-item {
    flex: 0 0 300px;
}

.gallery-item img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    filter: grayscale(30%);
    transition: filter 0.5s;
}

.gallery-item img:hover {
    filter: grayscale(0%);
}

/* CTA */
.cta-section {
    text-align: center;
    padding-bottom: 10rem;
}

.cta-container {
    margin-top: 5rem;
}

.cta-pre {
    margin-bottom: 2rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

.btn-quiet {
    display: inline-block;
    padding: 1rem 3rem;
    border: 1px solid #777;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.5s;
    font-family: var(--font-main);
    letter-spacing: 0.2em;
}

.btn-quiet:hover {
    background-color: #333;
    color: #fff;
    border-color: #333;
}

/* Footer */
.main-footer {
    padding: 2rem;
    text-align: center;
    font-size: 0.8rem;
    opacity: 0.5;
}

/* Responsive */
@media (max-width: 768px) {
    .two-col, .two-col.reverse {
        flex-direction: column;
        gap: 2rem;
    }
    
    .hero-image-container {
        width: 100%;
    }
    
    .section {
        padding: 5rem 1.5rem;
    }
    
    .image-breaker {
        background-attachment: scroll; /* Disable parallax on mobile for performance */
    }
}