@charset "UTF-8";

:root {
    --color-snow: #fafbfc;
    --color-ice: #e8eef3;
    --color-silver: #c0c8d0;
    --color-frost: #8a9aab;
    --color-night: #2a3442;
    --color-accent: #b8c5d4;
    --color-text-muted: #4f6070;
    --color-text-subtle: #5c6d80;
    --color-text-on-dark: #c0c8d0;
    --hero-image-opacity: 0.5;
    --font-display: 'Cormorant Garamond', serif;
    --font-body: 'Noto Sans JP', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: 300;
    background: var(--color-snow);
    color: var(--color-night);
    line-height: 1.8;
    letter-spacing: 0.05em;
    overflow-x: hidden;
}

/* --- Animations --- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 2s ease-out forwards;
    opacity: 0;
}

.delay-1 {
    animation-delay: 0.5s;
}

.delay-2 {
    animation-delay: 1.0s;
}

.delay-3 {
    animation-delay: 1.5s;
}





/* --- Decoration (Snowflakes) --- */
.snow-particle {
    position: fixed;
    top: -10px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 0 5px rgba(255, 255, 255, 0.8);
    animation: fall linear infinite;
    z-index: 50;
    pointer-events: none;
}

@keyframes fall {
    to {
        transform: translateY(100vh);
    }
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.5rem 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(to bottom, rgba(250, 251, 252, 0.95), transparent);
    transition: all 0.5s ease;
}

header.scrolled {
    background: rgba(250, 251, 252, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 30px rgba(42, 52, 66, 0.05);
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 300;
    font-style: italic;
    letter-spacing: 0.15em;
    color: var(--color-night);
}

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

nav a {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--color-text-muted);
    position: relative;
    transition: color 0.3s ease;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--color-silver);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

nav a:hover {
    color: var(--color-night);
}

nav a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    background:
        radial-gradient(ellipse at 20% 30%, rgba(200, 220, 240, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(184, 197, 212, 0.2) 0%, transparent 50%),
        linear-gradient(180deg, var(--color-snow) 0%, var(--color-ice) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("img/fvbg.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: var(--hero-image-opacity);
    z-index: 0;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 45% at 50% 42%,
            rgba(250, 251, 252, 0.85) 0%,
            rgba(250, 251, 252, 0.55) 45%,
            rgba(250, 251, 252, 0) 75%);
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 8rem 2rem 2rem 2rem;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(3rem, 10vw, 7rem);
    font-weight: 300;
    font-style: italic;
    letter-spacing: 0.3em;
    color: var(--color-night);
    margin-bottom: 1rem;
    opacity: 0;
    animation: fadeInUp 1.5s ease forwards;
    text-shadow: 0 2px 30px rgba(250, 251, 252, 0.9);
}

.hero-subtitle {
    font-family: var(--font-display);
    font-size: clamp(0.9rem, 2vw, 1.2rem);
    font-weight: 400;
    letter-spacing: 0.5em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    opacity: 0;
    animation: fadeInUp 1.5s ease 0.3s forwards;
}

.hero-line {
    width: 1px;
    height: 100px;
    background: linear-gradient(to bottom, transparent, var(--color-silver), transparent);
    margin: 3rem auto;
    opacity: 0;
    animation: fadeInUp 1.5s ease 0.6s forwards;
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%) !important;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    animation: fadeInUp 1.5s ease 1s forwards;
}

.scroll-indicator span {
    font-size: 0.8rem;
    letter-spacing: 0.3em;
    color: var(--color-text-muted);
}

.scroll-indicator::after {
    content: '';
    width: 1px;
    height: 40px;
    background: var(--color-silver);
    animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {

    0%,
    100% {
        transform: scaleY(1);
        opacity: 1;
    }

    50% {
        transform: scaleY(0.5);
        opacity: 0.5;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Concept Section */
.concept {
    padding: 10rem 4rem;
    background: var(--color-snow);
    position: relative;
}

.concept-inner {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.concept-label {
    font-family: var(--font-display);
    font-size: 0.875rem;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--color-text-subtle);
    margin-bottom: 3rem;
}

.concept p {
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 3vw, 1.8rem);
    font-weight: 300;
    font-style: italic;
    line-height: 2.2;
    color: var(--color-night);
    letter-spacing: 0.1em;
    text-wrap: balance;
}

.concept-decoration {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 4rem;
}

.concept-decoration span {
    width: 80px;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--color-silver), transparent);
}

.concept-decoration .diamond {
    width: 8px;
    height: 8px;
    background: var(--color-silver);
    transform: rotate(45deg);
}

/* Collection Section */
.collection {
    padding: 8rem 4rem 12rem;
    background: linear-gradient(180deg, var(--color-snow) 0%, var(--color-ice) 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 6rem;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 300;
    font-style: italic;
    letter-spacing: 0.2em;
    color: var(--color-night);
    margin-bottom: 1rem;
}

.section-header .line {
    width: 60px;
    height: 1px;
    background: var(--color-silver);
    margin: 0 auto;
}

.collection-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

.collection-item {
    position: relative;
    aspect-ratio: 1/1;
    overflow: hidden;
    cursor: pointer;
}

.collection-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(42, 52, 66, 0.6) 100%);
    z-index: 1;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.collection-item:hover::before {
    opacity: 1;
}

.collection-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.collection-item:hover img {
    transform: scale(1.05);
}

.collection-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 2rem;
    z-index: 2;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.5s ease;
}

.collection-item:hover .collection-info {
    transform: translateY(0);
    opacity: 1;
}

.collection-info h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 400;
    font-style: italic;
    color: var(--color-snow);
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.collection-info .price {
    font-size: 0.95rem;
    color: var(--color-ice);
    letter-spacing: 0.15em;
}

/* About Section */
.about {
    padding: 12rem 4rem;
    background: var(--color-night);
    color: var(--color-snow);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(200, 220, 240, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 50%, rgba(184, 197, 212, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.about-inner {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.about-label {
    font-family: var(--font-display);
    font-size: 0.875rem;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--color-text-on-dark);
    margin-bottom: 3rem;
}

.about h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 300;
    font-style: italic;
    letter-spacing: 0.15em;
    margin-bottom: 3rem;
}

.about p {
    font-size: 1rem;
    line-height: 2.5;
    color: var(--color-silver);
    max-width: 600px;
    margin: 0 auto;
    text-wrap: balance;
}

/* Journal Section */
.journal {
    padding: 10rem 4rem;
    background: var(--color-snow);
}

.journal-inner {
    max-width: 800px;
    margin: 0 auto;
}

.journal-list {
    margin-top: 4rem;
}

.journal-item {
    display: flex;
    align-items: baseline;
    gap: 3rem;
    padding: 2rem 0;
    border-bottom: 1px solid var(--color-ice);
    transition: all 0.3s ease;
    cursor: pointer;
}

.journal-item:hover {
    padding-left: 1rem;
}

.journal-item:hover .journal-title {
    color: var(--color-night);
}

.journal-date {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    font-variant-numeric: oldstyle-nums tabular-nums;
    color: var(--color-text-subtle);
    flex-shrink: 0;
}

.journal-title {
    font-family: var(--font-display), var(--font-body);
    font-size: clamp(1.05rem, 1.5vw, 1.25rem);
    font-weight: 400;
    font-style: italic;
    font-synthesis: none;

    line-height: 1.7;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
    text-wrap: pretty;
    transition: color 0.3s ease;
}

/* Footer */
footer {
    padding: 6rem 4rem 3rem;
    background: var(--color-ice);
    text-align: center;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 300;
    font-style: italic;
    letter-spacing: 0.2em;
    color: var(--color-night);
    margin-bottom: 3rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.footer-links a {
    font-size: 0.875rem;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
    display: inline-block;
    padding: 0.4rem 0.2rem;
}

.footer-links a:hover {
    color: var(--color-night);
}

.copyright {
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    color: var(--color-text-subtle);
}

.demo-notice {
    letter-spacing: 0.1em;
    margin-top: 1rem;
    color: var(--color-text-subtle);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .collection-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    header {
        padding: 1rem 2rem;
        justify-content: center;
    }

    .logo {
        display: none;
    }

    nav ul {
        gap: 1.5rem;
    }

    nav a {
        font-size: 0.75rem;
    }

    .hero,
    .collection,
    .about,
    .journal,
    footer {
        padding-left: 2rem;
        padding-right: 2rem;
    }
    
    .concept{
    padding: 6rem 2rem 0;
    }
    
    /* Collection - スマホ常時表示 */
    .collection-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .collection-item {
        aspect-ratio: auto;
        overflow: visible;
        display: flex;
        flex-direction: column;
    }

    .collection-item::before {
        display: none;
    }

    .collection-item img {
        width: 100%;
        height: auto;
        aspect-ratio: 4/5;
        object-fit: cover;
        display: block;
    }

    .collection-info {
        position: static;
        transform: none;
        opacity: 1;
        padding: 1.2rem 0.5rem 2rem;
        text-align: center;
        background: var(--color-snow);
        display: block;
    }

    .collection-info h3 {
        color: var(--color-night);
        font-size: 1.1rem;
        margin-bottom: 0.4rem;
        text-shadow: none;
    }

    .collection-info .price {
        color: var(--color-text-muted);
        font-size: 0.95rem;
    }

    .collection-item:hover .collection-info {
        transform: none;
        opacity: 1;
    }

    .journal-item {
        flex-direction: column;
        gap: 0.5rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

/* --- 改行コントロール --- */

/* PC専用の改行。スマホでは無効 */
@media (max-width: 768px) {
    .br-pc {
        display: none;
    }
}

/* スマホ専用の改行。PCでは無効 */
.br-sp {
    display: none;
}

@media (max-width: 768px) {
    .br-sp {
        display: inline;
    }
}

.nb {
    display: inline-block;
}

/* --- Legal Pages（プライバシーポリシー / 利用規約 / 特定商取引法） --- */

/* 下層ページはヒーローが無いため、ヘッダーを最初から不透明にする */
.page-legal header {
    background: rgba(250, 251, 252, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 30px rgba(42, 52, 66, 0.05);
}

.page {
    max-width: 820px;
    margin: 0 auto;
    padding: 12rem 4rem 8rem;
}

.page-head {
    text-align: center;
    margin-bottom: 3.5rem;
}

.page-eyebrow {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--color-text-subtle);
}

.page-head h1 {
    font-family: var(--font-display), var(--font-body);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 400;
    font-style: italic;
    font-synthesis: none;
    letter-spacing: 0.12em;
    color: var(--color-night);
    margin-top: 1rem;
    line-height: 1.5;
}

.page-head .line {
    width: 60px;
    height: 1px;
    background: var(--color-silver);
    margin: 1.5rem auto 0;
}

.demo-banner {
    background: #fff;
    border: 1px solid var(--color-ice);
    padding: 1.25rem 1.5rem;
    margin-bottom: 4rem;
    font-size: 0.875rem;
    line-height: 1.9;
    color: var(--color-text-muted);
}

.demo-banner strong {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 400;
    color: var(--color-night);
    letter-spacing: 0.05em;
}

.legal-section {
    margin-bottom: 3.5rem;
}

.legal-section h2 {
    font-family: var(--font-display), var(--font-body);
    font-size: 1.3rem;
    font-weight: 500;
    font-synthesis: none;
    font-variant-numeric: lining-nums;
    letter-spacing: 0.08em;
    color: var(--color-night);
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-ice);
    margin-bottom: 1.5rem;
}

.legal-section p {
    font-size: 0.95rem;
    line-height: 2;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
    text-wrap: pretty;
}

.legal-section ol,
.legal-section ul {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.legal-section li {
    font-size: 0.95rem;
    line-height: 2;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
    text-wrap: pretty;
}

/* 特定商取引法の表記（定義リスト的な2カラム表） */
.legal-table {
    width: 100%;
    border-collapse: collapse;
}

.legal-table th {
    width: 32%;
    text-align: left;
    vertical-align: top;
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--color-night);
    padding: 1.25rem 1.5rem 1.25rem 0;
    border-bottom: 1px solid var(--color-ice);
}

.legal-table td {
    font-size: 0.95rem;
    line-height: 1.95;
    color: var(--color-text-muted);
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--color-ice);
    text-wrap: pretty;
}

.legal-meta {
    margin-top: 4rem;
    text-align: right;
    font-size: 0.875rem;
    letter-spacing: 0.08em;
    color: var(--color-text-subtle);
}

.back-home {
    display: block;
    text-align: center;
    margin-top: 4rem;
    font-family: var(--font-display);
    font-size: 0.95rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    text-decoration: none;
    padding: 0.75rem;
    transition: color 0.3s ease;
}

.back-home:hover {
    color: var(--color-night);
}

@media (max-width: 768px) {
    .page {
        padding: 8rem 2rem 5rem;
    }

    .legal-table th,
    .legal-table td {
        display: block;
        width: 100%;
    }

    .legal-table th {
        padding: 1.25rem 0 0.25rem;
        border-bottom: none;
    }

    .legal-table td {
        padding: 0 0 1.25rem;
    }
}

.logo a,
.footer-logo a {
    color: inherit;
    text-decoration: none;
}

/* 規約本文中のリンク */
.legal-section a {
    color: var(--color-night);
    text-decoration: underline;
    text-underline-offset: 0.2em;
    text-decoration-thickness: 1px;
}

/* キーボード操作時のフォーカスを見えるようにする */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-night);
    outline-offset: 3px;
}

/* アニメーションを控える設定の利用者に配慮する */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Fade-in on scroll */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: all 1s ease;
}

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