:root {
    /* JAPANESE NOIR — warm black, leaf gold, oxblood seal */
    --ink:        #0c0a08;
    --ink-soft:   #110e0b;
    --ink-panel:  #060504;

    --gold:       #c8a44d;
    --gold-bright:#e6cd86;
    --gold-dim:   rgba(200, 164, 77, 0.22);
    --gold-faint: rgba(200, 164, 77, 0.10);

    --crimson:    #8c2f24;

    --cream:      #f2ece0;
    --smoke:      #8d8576;

    --font-serif: 'Cormorant Garamond', serif;
    --font-sans:  'Jost', sans-serif;
    --font-jp:    'Noto Serif JP', serif;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
    margin: 0;
    font-family: var(--font-sans);
    background-color: var(--ink);
    color: var(--cream);
    display: flex;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- GRAIN OVERLAY --- */
.grain {
    position: fixed; inset: 0;
    pointer-events: none; z-index: 900;
    opacity: 0.045; mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* --- DECORATIVE GRID LINES --- */
.grid-line {
    position: fixed; top: 0; bottom: 0; width: 1px;
    background: linear-gradient(to bottom, transparent, var(--gold-dim), transparent);
    z-index: 0; pointer-events: none;
}
.vertical-left  { left: 320px; }
.vertical-right { right: 8%; }

/* --- SIDEBAR --- */
.sidebar {
    width: 320px; height: 100vh;
    background: linear-gradient(180deg, var(--ink-panel), #0a0907);
    border-right: 1px solid var(--gold-dim);
    display: flex; flex-direction: column;
    padding: 56px 44px;
    z-index: 100;
    position: relative;
}
.sidebar::after {
    content: ""; position: absolute; top: 0; right: 0; bottom: 0; width: 3px;
    background: linear-gradient(180deg, transparent, var(--gold-faint), transparent);
}

.logo-area { margin-bottom: 64px; }

.kanji-box {
    display: inline-block;
    border: 1.5px solid var(--gold);
    padding: 10px 18px; margin-bottom: 20px;
    position: relative;
    box-shadow: 0 0 28px -10px var(--gold);
}
.kanji-box::before {
    content: ""; position: absolute; inset: 4px;
    border: 1px solid var(--gold-faint);
}
.main-kanji {
    font-family: var(--font-jp); font-size: 2.4rem;
    color: var(--gold); line-height: 1; font-weight: 900;
}

.brand-name {
    font-family: var(--font-serif); font-size: 3.1rem;
    margin: 0; color: var(--cream); letter-spacing: 3px; line-height: 1; font-weight: 600;
}
.brand-tagline {
    font-family: var(--font-sans); font-size: 0.62rem; color: var(--smoke);
    letter-spacing: 3.5px; display: block; margin-top: 9px; font-weight: 400;
}

.nav-links { display: flex; flex-direction: column; gap: 6px; flex-grow: 1; margin-top: 8px; }
.nav-btn {
    background: none; border: none; color: var(--smoke);
    font-family: var(--font-sans); font-size: 0.82rem; text-transform: uppercase;
    letter-spacing: 2.5px; text-align: left; cursor: pointer;
    padding: 13px 0 13px 0; transition: all .35s ease;
    border-bottom: 1px solid transparent; display: flex; align-items: baseline; gap: 12px;
}
.nav-index { font-size: 0.6rem; color: var(--gold-dim); letter-spacing: 1px; }
.nav-btn:hover { color: var(--cream); padding-left: 8px; }
.nav-btn.active { color: var(--gold); }
.nav-btn.active .nav-index { color: var(--gold); }

.nav-footer { margin-top: auto; }
.order-btn {
    display: block; padding: 16px 0; text-align: center;
    border: 1px solid var(--gold); color: var(--gold);
    text-decoration: none; font-size: 0.72rem; letter-spacing: 3.5px; font-weight: 500;
    transition: all .35s ease;
}
.order-btn:hover {
    background: var(--gold); color: var(--ink);
    box-shadow: 0 0 30px -8px var(--gold);
}
.side-meta { margin-top: 26px; }
.side-meta p {
    margin: 0 0 7px; font-size: 0.62rem; letter-spacing: 2px;
    color: var(--smoke); text-transform: uppercase;
}

/* --- MOBILE NAVS (hidden on desktop) --- */
.mobile-top-bar, .mobile-bottom-nav { display: none; }

/* --- CONTENT STAGE --- */
.content-stage {
    flex-grow: 1; position: relative; overflow-y: auto;
    background:
        radial-gradient(ellipse at 50% 38%, #19150e 0%, var(--ink) 62%);
    -webkit-overflow-scrolling: touch;
}

.page-layer {
    padding: 90px 9% 110px;
    max-width: 1180px; margin: 0 auto;
    position: relative; z-index: 2;
    display: none;
}
.page-layer.active { display: block; }

/* staggered reveal */
.reveal { opacity: 0; }
.page-layer.active .reveal {
    animation: fadeUp .85s cubic-bezier(.22,.61,.36,1) forwards;
    animation-delay: var(--d, 0s);
}
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(26px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* --- HOME / HERO --- */
.hero-center {
    min-height: 82vh; display: flex; flex-direction: column;
    justify-content: center; align-items: center; text-align: center;
    position: relative;
}
.bg-watermark {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-jp); font-size: 32rem;
    color: var(--gold); opacity: 0.045; z-index: -1;
    line-height: 1; pointer-events: none; font-weight: 900;
}
.hero-vertical {
    position: absolute; right: -2%; top: 50%;
    transform: translateY(-50%);
    writing-mode: vertical-rl;
    font-family: var(--font-jp); font-size: 0.85rem;
    letter-spacing: 6px; color: var(--gold-dim);
}

.seal {
    width: 78px; height: 78px; border-radius: 50%;
    border: 1.5px solid var(--gold);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 32px; position: relative;
    box-shadow: 0 0 36px -14px var(--gold);
}
.seal::before {
    content: ""; position: absolute; inset: 6px;
    border: 1px solid var(--gold-faint); border-radius: 50%;
}
.seal-kanji { font-family: var(--font-jp); font-size: 2rem; color: var(--gold); font-weight: 700; }

.gold-box {
    border: 1px solid var(--gold-dim); padding: 7px 18px; margin-bottom: 34px;
}
.label-text {
    font-size: 0.66rem; letter-spacing: 4px; color: var(--gold);
    margin: 0; font-weight: 400;
}

.headline {
    font-family: var(--font-serif); font-size: 8rem; line-height: 0.88;
    color: var(--cream); margin: 0; letter-spacing: 4px; font-weight: 600;
    display: flex; flex-direction: column;
}
.headline span { display: block; }
.headline span:last-child { color: var(--gold); }

.sub-headline {
    font-family: var(--font-serif); font-style: italic; font-size: 1.85rem;
    color: var(--smoke); margin: 26px 0 44px;
}

.hero-actions { display: flex; gap: 18px; }
.cta-solid, .cta-ghost {
    padding: 16px 38px; font-family: var(--font-sans);
    letter-spacing: 2.5px; font-size: 0.74rem; text-transform: uppercase;
    cursor: pointer; transition: all .35s ease; font-weight: 500;
}
.cta-solid {
    background: var(--gold); border: 1px solid var(--gold); color: var(--ink);
}
.cta-solid:hover {
    background: var(--gold-bright); border-color: var(--gold-bright);
    box-shadow: 0 0 34px -8px var(--gold); transform: translateY(-2px);
}
.cta-ghost {
    background: transparent; border: 1px solid var(--gold-dim); color: var(--cream);
}
.cta-ghost:hover { border-color: var(--gold); color: var(--gold); }

.hero-kicker {
    display: flex; align-items: center; gap: 16px; margin-top: 56px;
    font-size: 0.66rem; letter-spacing: 3.5px; color: var(--smoke);
}
.hero-kicker i { width: 4px; height: 4px; background: var(--gold); border-radius: 50%; display: block; }

/* --- SECTION HEADINGS --- */
.section-head {
    display: flex; align-items: baseline; gap: 22px; margin-bottom: 56px;
}
.section-head.sub { margin-top: 84px; }
.section-num {
    font-family: var(--font-jp); font-size: 2.4rem; color: var(--gold-dim); font-weight: 700;
}
.section-num.small { font-size: 1.7rem; }
.layer-title {
    font-family: var(--font-sans); font-size: 0.86rem; letter-spacing: 5px;
    color: var(--gold); margin: 0; text-transform: uppercase; font-weight: 500;
    padding-bottom: 16px; border-bottom: 1px solid var(--gold-dim);
    flex-grow: 1;
}

/* --- STORY --- */
.story-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 80px; align-items: stretch; }
.story-left {
    display: flex; flex-direction: column; justify-content: center;
}
.story-lead {
    font-family: var(--font-serif); font-size: 2.6rem; line-height: 1.32;
    color: var(--cream); margin: 0; font-weight: 500;
}
.story-mark {
    display: flex; align-items: center; gap: 18px; margin-top: 38px;
}
.story-mark-rule {
    width: 54px; height: 1px; background: var(--gold); flex-shrink: 0;
}
.story-mark-text {
    font-size: 0.66rem; letter-spacing: 2.5px; color: var(--smoke);
    text-transform: uppercase;
}
.quote-mark { color: var(--gold); font-size: 2.6rem; }
.quote-jp { font-family: var(--font-jp); color: var(--gold); font-size: 1.9rem; }
.story-right p {
    color: var(--smoke); line-height: 1.85; margin-bottom: 24px;
    font-size: 1.04rem; font-weight: 300;
}
.story-right strong { color: var(--cream); font-weight: 400; }
.signature {
    font-family: var(--font-serif); font-style: italic;
    color: var(--gold) !important; font-size: 1.15rem !important; margin-top: 34px;
}

.story-strip {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
    margin-top: 84px; background: var(--gold-dim);
    border: 1px solid var(--gold-dim);
}
.strip-item {
    background: var(--ink-soft); padding: 34px 30px;
}
.strip-num {
    font-family: var(--font-serif); font-size: 1.4rem; color: var(--gold);
    display: block; margin-bottom: 14px;
}
.strip-item p { margin: 0; color: var(--smoke); font-size: 0.96rem; line-height: 1.6; font-weight: 300; }

/* --- MENU --- */
.menu-list { margin-top: 8px; }
.menu-item {
    padding: 36px 28px; border: 1px solid transparent;
    border-bottom: 1px solid rgba(255,255,255,0.07);
    transition: all .35s ease;
}
.menu-item:hover {
    border-color: var(--gold-dim);
    background: linear-gradient(90deg, var(--gold-faint), transparent);
}
.item-head { display: flex; align-items: baseline; margin-bottom: 12px; }
.item-name {
    font-family: var(--font-serif); font-size: 2.5rem; color: var(--cream);
    margin: 0; font-weight: 500;
}
.item-line { flex-grow: 1; height: 1px; background: var(--gold-dim); margin: 0 22px; }
.item-price {
    font-family: var(--font-serif); color: var(--gold); font-size: 1.55rem; font-weight: 600;
}
.item-desc {
    color: var(--smoke); max-width: 620px; font-size: 1rem;
    line-height: 1.6; font-weight: 300; margin: 0;
}
.item-upsell {
    font-size: 0.7rem; color: var(--gold); text-transform: uppercase;
    letter-spacing: 1.5px; margin-top: 12px; opacity: 0.75;
}

/* --- MENU FOOTER --- */
.menu-footer {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px;
    margin-top: 80px; padding-top: 48px;
    border-top: 1px solid var(--gold-dim);
}
.footer-label {
    font-size: 0.66rem; letter-spacing: 3px; color: var(--gold);
    text-transform: uppercase; display: block; margin-bottom: 16px;
}
.footer-col p {
    margin: 0 0 8px; color: var(--smoke); font-size: 0.92rem;
    font-weight: 300; letter-spacing: 0.5px;
}
.platform-links { display: flex; flex-wrap: wrap; gap: 12px; }
.platform-btn {
    color: var(--cream); text-decoration: none; border: 1px solid #2a2620;
    padding: 11px 26px; text-transform: uppercase; font-size: 0.7rem;
    letter-spacing: 2px; transition: all .3s ease;
}
.platform-btn:hover {
    border-color: var(--gold); color: var(--gold);
    box-shadow: 0 0 22px -10px var(--gold);
}

/* ============ MOBILE ============ */
@media (max-width: 900px) {
    body { flex-direction: column; overflow: hidden; position: fixed; width: 100%; height: 100%; }
    .sidebar, .grid-line { display: none; }

    .mobile-top-bar {
        display: flex; justify-content: space-between; align-items: center;
        padding: 0 24px; height: 60px; background: var(--ink-panel);
        border-bottom: 1px solid var(--gold-dim);
        position: fixed; top: 0; width: 100%; z-index: 50;
    }
    .mobile-brand-group { display: flex; align-items: center; gap: 11px; }
    .mobile-kanji {
        font-family: var(--font-jp); font-size: 1.35rem; color: var(--gold);
        border: 1px solid var(--gold); padding: 1px 8px; font-weight: 700;
    }
    .mobile-logo {
        font-family: var(--font-serif); font-size: 1.55rem; color: var(--cream);
        letter-spacing: 1.5px; font-weight: 600;
    }
    .mobile-subtitle { font-size: 0.6rem; color: var(--smoke); letter-spacing: 2.5px; }

    .mobile-bottom-nav {
        display: flex; justify-content: space-around; align-items: center;
        position: fixed; bottom: 0; width: 100%; height: 72px;
        background: var(--ink-panel); border-top: 1px solid var(--gold-dim);
        z-index: 50; padding-bottom: 8px;
    }
    .mob-btn {
        background: none; border: none; color: #5f5a50;
        font-family: var(--font-sans); font-size: 0.7rem; letter-spacing: 1.5px;
        text-transform: uppercase;
    }
    .mob-btn.active { color: var(--gold); }
    .mob-order {
        background: var(--gold); color: var(--ink); border: none;
        padding: 9px 22px; font-size: 0.74rem; font-weight: 500;
        letter-spacing: 1.5px; text-transform: uppercase; font-family: var(--font-sans);
    }

    .content-stage {
        margin-top: 60px; margin-bottom: 72px;
        height: calc(100vh - 132px);
    }
    .page-layer { padding: 48px 24px 60px; }

    .hero-center { min-height: 70vh; }
    .bg-watermark { font-size: 16rem; opacity: 0.06; }
    .hero-vertical { display: none; }
    .seal { width: 64px; height: 64px; margin-bottom: 26px; }
    .seal-kanji { font-size: 1.6rem; }
    .headline { font-size: 4.1rem; letter-spacing: 2px; }
    .sub-headline { font-size: 1.4rem; margin: 18px 0 34px; }
    .hero-actions { flex-direction: column; width: 100%; max-width: 280px; }
    .cta-solid, .cta-ghost { width: 100%; }
    .hero-kicker { margin-top: 40px; gap: 11px; font-size: 0.58rem; letter-spacing: 2px; }

    .section-head { gap: 16px; margin-bottom: 38px; }
    .section-head.sub { margin-top: 60px; }
    .section-num { font-size: 1.9rem; }

    .story-grid { grid-template-columns: 1fr; gap: 34px; }
    .story-lead { font-size: 1.85rem; }
    .story-mark { margin-top: 24px; }
    .quote-mark { font-size: 1.9rem; }
    .story-strip { grid-template-columns: 1fr; margin-top: 50px; }

    .item-head { flex-direction: column; align-items: flex-start; gap: 4px; }
    .item-line { display: none; }
    .item-name { font-size: 2rem; }
    .item-price { font-size: 1.3rem; }
    .menu-item { padding: 28px 16px; }

    .menu-footer { grid-template-columns: 1fr; gap: 32px; margin-top: 56px; }
}