/* ============================================================
   koakuma.bar — an imp lounge, est. nowhere, 1974
   isometric muted-vintage / plaster-cast classicism
   ============================================================ */

:root {
    /* ---- palette (muted-vintage, all under 60% sat) ---- */
    --c-chalk:   #ECE6DA;
    --c-rose:    #D9A3A0;
    --c-peach:   #E8C4A0;
    --c-smoke:   #7E97A6;
    --c-plaster: #F5F0E6;
    --c-ink:     #3A2A36;
    --c-brass:   #B89B6E;
    --c-bottle:  #5C6B5A;

    --c-body:    #3A3530;
    --c-ledger:  #6B5D52;
    --c-deep:    #3A2A36;

    /* ---- isometric ---- */
    --iso: matrix(0.866, 0.5, -0.866, 0.5, 0, 0);
    --iso-tile-size: 24px;

    /* ---- motion ---- */
    --bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

    /* ---- type ---- */
    --f-display: "Sora", "Futura", system-ui, sans-serif;
    --f-italic:  "Fraunces", Georgia, serif;
    --f-body:    "Inter", system-ui, sans-serif;
    --f-mono:    "Geist Mono", "SFMono-Regular", ui-monospace, monospace;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--f-body);
    color: var(--c-body);
    background:
        radial-gradient(120% 80% at 50% -10%, color-mix(in oklch, var(--c-peach), white 40%), transparent 60%),
        var(--c-chalk);
    background-attachment: fixed;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ---- film-grain overlay ---- */
.grain {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.06;
    mix-blend-mode: multiply;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ---- page matting ---- */
.page {
    max-width: 1480px;
    margin: 0 auto;
    padding: 64px;
}
@media (max-width: 720px) { .page { padding: 24px; } }

/* ============================================================
   BANDS
   ============================================================ */
.band { margin: 0 0 24px; }
.band--hero { margin-bottom: 24px; }

.section-head {
    display: flex;
    align-items: baseline;
    gap: 1.4rem;
    flex-wrap: wrap;
    margin: 56px 0 28px;
    padding-bottom: 10px;
    border-bottom: 1px solid color-mix(in oklch, var(--c-brass), transparent 60%);
}
.section-title {
    font-family: var(--f-display);
    font-weight: 800;
    font-size: clamp(2rem, 5vw, 3.6rem);
    letter-spacing: 0.06em;
    font-variant-caps: small-caps;
    text-transform: lowercase;
    color: var(--c-ink);
    text-shadow: 1px 1px 0 color-mix(in oklch, var(--c-brass), transparent 55%);
}
.section-note {
    font-family: var(--f-italic);
    font-style: italic;
    font-size: 1.05rem;
    letter-spacing: 0.04em;
    color: var(--c-ledger);
}

/* ============================================================
   GLASSMORPHIC CARD
   ============================================================ */
.card {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    isolation: isolate;
    background: rgba(245, 240, 230, 0.55);
    backdrop-filter: blur(14px) saturate(0.85);
    -webkit-backdrop-filter: blur(14px) saturate(0.85);
    border: 1px solid rgba(255, 255, 255, 0.45);
    box-shadow:
        0 1px 0 0 rgba(255, 255, 255, 0.6) inset,
        0 16px 36px -12px rgba(58, 42, 54, 0.18),
        0 0 32px -8px rgba(245, 240, 230, 0.5);
    transition: box-shadow 480ms var(--bounce);
}
/* ambient light-sweep */
.card::after {
    content: "";
    position: absolute;
    inset: -50% -10%;
    z-index: 5;
    pointer-events: none;
    background: linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.18) 48%, rgba(255, 255, 255, 0.04) 52%, transparent 100%);
    transform: translateY(-100%);
    animation: sweep 22s linear infinite;
}
@keyframes sweep {
    0%   { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}
.card:hover {
    box-shadow:
        0 1px 0 0 rgba(255, 255, 255, 0.7) inset,
        0 22px 44px -12px rgba(58, 42, 54, 0.24),
        0 0 40px -6px rgba(232, 196, 160, 0.55);
}

/* card back-wall layer */
.card__back {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.card__back--rose  { background: linear-gradient(165deg, color-mix(in oklch, var(--c-rose), white 26%), color-mix(in oklch, var(--c-peach), white 8%)); }
.card__back--dusk  { background: linear-gradient(165deg, color-mix(in oklch, var(--c-smoke), black 18%), var(--c-ink)); }
.card__back--peach { background: linear-gradient(165deg, color-mix(in oklch, var(--c-peach), white 22%), color-mix(in oklch, var(--c-chalk), white 6%)); }
.card__back--smoke { background: linear-gradient(165deg, color-mix(in oklch, var(--c-smoke), white 26%), color-mix(in oklch, var(--c-chalk), white 4%)); }
.card__back--bottle{ background: linear-gradient(165deg, color-mix(in oklch, var(--c-bottle), white 30%), color-mix(in oklch, var(--c-chalk), white 6%)); }
.card__back--chalk { background: linear-gradient(165deg, color-mix(in oklch, var(--c-chalk), white 16%), color-mix(in oklch, var(--c-peach), white 30%)); }

/* ============================================================
   ISOMETRIC DIORAMA
   ============================================================ */
.diorama-wrap {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    perspective: 1px; /* harmless, keeps stacking sane */
}
.diorama-wrap--card { aspect-ratio: 3 / 4; padding: 14px; }
.diorama-wrap--hero { aspect-ratio: 16 / 7; padding: 24px; }
.diorama-wrap--booth { aspect-ratio: 3 / 4; padding: 14px; }

.diorama {
    position: relative;
    width: 320px;
    height: 400px;
    transform: var(--iso) scale(0.62);
    transform-style: flat;
    transition: transform 620ms var(--bounce);
}
.diorama-wrap--hero .diorama { transform: var(--iso) scale(0.78); }
.diorama--shelf { width: 620px; height: 160px; transform: var(--iso) scale(0.5); }

/* a "block" is a cuboid drawn with three faces via gradients.
   --w/--h footprint in tiles, --x/--y position in tiles,
   --z floor-height in tiles, --zh extruded height in tiles, --tone base color */
.block {
    --w: 1; --h: 1; --x: 0; --y: 0; --z: 0; --zh: 1;
    --tone: var(--c-chalk);
    --top:   color-mix(in oklch, var(--tone), white 16%);
    --left:  var(--tone);
    --right: color-mix(in oklch, var(--tone), black 22%);
    position: absolute;
    width:  calc(var(--w) * var(--iso-tile-size));
    height: calc(var(--h) * var(--iso-tile-size));
    left:   calc(var(--x) * var(--iso-tile-size));
    top:    calc(var(--y) * var(--iso-tile-size));
    /* lift by floor-height: in iso, +z shifts up-left along screen-y by tile/√? we approximate with translateY */
    transform: translateY(calc(var(--z) * var(--iso-tile-size) * -1));
    background: var(--top);
    box-shadow:
        /* right face */
        calc(var(--zh) * var(--iso-tile-size) * 0.42) calc(var(--zh) * var(--iso-tile-size) * 0.42) 0 0 var(--right),
        /* left face fudge via inset gradient handled below */
        0 0 0 0 transparent;
    border-radius: 2px;
}
/* left + right faces as pseudo-elements for a real cuboid look */
.block::before,
.block::after {
    content: "";
    position: absolute;
    border-radius: 1px;
}
/* right face */
.block::after {
    top: 100%;
    left: 0;
    width: 100%;
    height: calc(var(--zh) * var(--iso-tile-size));
    background: var(--right);
    transform-origin: top left;
    transform: skewY(-30deg);
}
/* left face */
.block::before {
    top: 0;
    left: 100%;
    width: calc(var(--zh) * var(--iso-tile-size));
    height: 100%;
    background: var(--left);
    transform-origin: top left;
    transform: skewX(-30deg);
}
/* reset the box-shadow hack now that pseudo-faces exist */
.block { box-shadow: 0 0 0 0 transparent; }

/* slim props get a softer chamfer */
.glass-prop { border-radius: 50% 50% 3px 3px; }
.glass-prop::before, .glass-prop::after { border-radius: 2px; }
.glass-prop--empty { opacity: 0.85; }
.lava { border-radius: 50% 50% 4px 4px; }
.bust { border-radius: 50% 50% 6px 6px; }
.bottle { border-radius: 50% 50% 2px 2px; }
.window-glow {
    position: absolute;
    left: calc(1 * var(--iso-tile-size));
    top: calc(0.1 * var(--iso-tile-size));
    width: calc(11 * var(--iso-tile-size));
    height: calc(2.6 * var(--iso-tile-size));
    background: radial-gradient(120% 140% at 50% 100%, color-mix(in oklch, var(--c-rose), white 12%), color-mix(in oklch, var(--c-peach), transparent 30%) 60%, transparent 78%);
    filter: blur(2px);
    z-index: 1;
}
.diorama--dusk .window-glow { background: radial-gradient(120% 140% at 50% 100%, color-mix(in oklch, var(--c-smoke), black 28%), transparent 75%); }

/* ---- the koakuma silhouette ---- */
.koakuma {
    --x: 0; --y: 0; --z: 0;
    position: absolute;
    left: calc(var(--x) * var(--iso-tile-size));
    top:  calc(var(--y) * var(--iso-tile-size));
    transform:
        translateY(calc(var(--z) * var(--iso-tile-size) * -1))
        matrix(0.866, -0.5, 0, 1, 0, 0) /* un-skew so the figure stands "up" out of the iso plane */
        scale(1);
    width: calc(1.4 * var(--iso-tile-size));
    height: calc(2.6 * var(--iso-tile-size));
    z-index: 3;
}
.koakuma__horns {
    position: absolute;
    top: -8px; left: 50%;
    width: 70%; height: 12px;
    transform: translateX(-50%);
    background: var(--c-ink);
    clip-path: polygon(0% 100%, 18% 0%, 30% 100%, 70% 100%, 82% 0%, 100% 100%);
}
.koakuma__head {
    position: absolute;
    top: 6px; left: 50%;
    width: 56%; aspect-ratio: 1;
    transform: translateX(-50%);
    background: var(--c-ink);
    border-radius: 50% 50% 48% 48%;
}
.koakuma__body {
    position: absolute;
    bottom: 0; left: 50%;
    width: 100%; height: 64%;
    transform: translateX(-50%);
    background: var(--c-ink);
    border-radius: 40% 40% 18% 18%;
    box-shadow: inset 0 -4px 0 0 color-mix(in oklch, var(--c-rose), black 18%); /* velvet jacket hint */
}
.koakuma--asleep {
    transform:
        translateY(calc(var(--z) * var(--iso-tile-size) * -1))
        matrix(0.866, -0.5, 0, 1, 0, 0)
        rotate(74deg);
    transform-origin: bottom center;
}

/* ============================================================
   HERO / FOYER
   ============================================================ */
.card--hero {
    position: relative;
    min-height: 78vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}
.hero-text {
    position: relative;
    z-index: 6;
    padding: 0 clamp(24px, 5vw, 64px) clamp(28px, 5vw, 56px);
    text-align: left;
}
.wordmark {
    font-family: var(--f-display);
    font-weight: 800;
    font-size: clamp(2.4rem, 6vw, 5.5rem);
    letter-spacing: 0.02em;
    line-height: 0.95;
    color: var(--c-ink);
    text-shadow: 1px 1px 0 color-mix(in oklch, var(--c-brass), transparent 50%);
    position: relative;
    display: inline-block;
}
.wordmark::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -0.18em;
    height: 3px;
    background: var(--c-brass);
    opacity: 0.8;
}
.wordmark--glow {
    color: color-mix(in oklch, var(--c-plaster), var(--c-peach) 20%);
    text-shadow: 0 0 18px color-mix(in oklch, var(--c-peach), transparent 30%), 1px 1px 0 rgba(0,0,0,0.2);
    animation: glow 6s ease-in-out infinite alternate;
}
@keyframes glow {
    from { text-shadow: 0 0 12px color-mix(in oklch, var(--c-peach), transparent 50%), 1px 1px 0 rgba(0,0,0,0.2); }
    to   { text-shadow: 0 0 26px color-mix(in oklch, var(--c-peach), transparent 20%), 1px 1px 0 rgba(0,0,0,0.2); }
}
.card--dusk .wordmark::after { background: color-mix(in oklch, var(--c-brass), white 18%); }
.hero-sub {
    font-family: var(--f-italic);
    font-style: italic;
    font-size: clamp(1rem, 1.6vw, 1.3rem);
    letter-spacing: 0.06em;
    font-variant-caps: small-caps;
    color: var(--c-ledger);
    margin-top: 0.5em;
}
.card--dusk .hero-sub { color: color-mix(in oklch, var(--c-plaster), transparent 25%); }

/* ============================================================
   COASTER ANNOTATIONS
   ============================================================ */
.coaster {
    position: relative;
    z-index: 6;
    margin: 0 14px 14px;
    padding: 8px 12px;
    border-radius: 999px;
    background: color-mix(in oklch, var(--c-plaster), transparent 30%);
    border: 1px dashed color-mix(in oklch, var(--c-brass), transparent 40%);
    font-family: var(--f-mono);
    font-size: 0.72rem;
    letter-spacing: 0.02em;
    color: var(--c-brass);
    text-align: center;
    text-transform: lowercase;
}
.coaster strong {
    display: block;
    font-weight: 400;
    color: var(--c-ink);
    font-size: 0.84rem;
    letter-spacing: 0.04em;
}
.coaster em {
    font-family: var(--f-italic);
    font-style: italic;
    color: var(--c-ledger);
}
.coaster--hero {
    align-self: flex-start;
    margin: 0 clamp(24px, 5vw, 64px) clamp(20px, 4vw, 40px);
}
.card--dusk .coaster--hero {
    background: color-mix(in oklch, var(--c-ink), white 8%);
    color: color-mix(in oklch, var(--c-brass), white 22%);
    border-color: color-mix(in oklch, var(--c-brass), transparent 50%);
}

/* ============================================================
   FRIEZE DIVIDERS (marble veining)
   ============================================================ */
.frieze {
    height: 12px;
    margin: 36px 0;
    overflow: hidden;
}
.frieze svg {
    width: 140%;
    height: 12px;
    display: block;
    transform: translateX(-10%);
}
.frieze path {
    fill: none;
    stroke: color-mix(in oklch, var(--c-plaster), var(--c-brass) 12%);
    stroke-width: 1.4;
    opacity: 0.85;
}
.frieze path:nth-child(2) { stroke: color-mix(in oklch, var(--c-plaster), var(--c-smoke) 14%); opacity: 0.55; }

/* ============================================================
   PORTFOLIO GRID
   ============================================================ */
.grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 32px;
}
.grid--menu .card   { grid-column: span 3; }
.grid--booths .card { grid-column: span 4; grid-row: span 2; }
.grid--booths .card.is-expanded { grid-column: span 8; grid-row: span 2; }

@media (max-width: 1080px) {
    .grid--menu .card   { grid-column: span 4; }
    .grid--booths .card { grid-column: span 6; }
    .grid--booths .card.is-expanded { grid-column: span 12; }
}
@media (max-width: 720px) {
    .grid { gap: 16px; }
    .grid--menu .card   { grid-column: span 6; }
    .grid--booths .card { grid-column: span 12; grid-row: auto; }
    .grid--booths .card.is-expanded { grid-column: span 12; }
}

/* menu card internals */
.card--cocktail { display: flex; flex-direction: column; }
.card--cocktail .diorama-wrap { flex: 1; }
.card--cocktail:hover .diorama { transform: var(--iso) scale(0.62) translateY(-12px); }
.diorama-wrap--card .diorama { transform: var(--iso) scale(0.62); }

/* booth card internals */
.card--booth { display: flex; flex-direction: column; cursor: pointer; }
.card--booth .diorama-wrap--booth { flex: 1; }
.booth-passage {
    display: none;
    position: relative;
    z-index: 6;
    padding: 0 22px 18px;
    column-count: 2;
    column-gap: 22px;
    font-size: 0.92rem;
    line-height: 1.7;
    color: var(--c-body);
}
.booth-passage p { margin: 0 0 0.9em; break-inside: avoid; }
.booth-passage p:first-letter {
    font-family: var(--f-italic);
    font-style: italic;
    font-size: 2.4em;
    line-height: 0.9;
    float: left;
    padding-right: 4px;
    color: var(--c-brass);
}
.card--booth.is-expanded .booth-passage { display: block; }
.card--booth.is-expanded .diorama-wrap--booth { aspect-ratio: 16 / 7; }
@media (max-width: 720px) {
    .booth-passage { column-count: 1; }
}

/* ============================================================
   THE LEDGER
   ============================================================ */
.ledger {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 32px;
    align-items: stretch;
}
@media (max-width: 900px) { .ledger { grid-template-columns: 1fr; } }

.ledger__shelf {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    background: linear-gradient(165deg, color-mix(in oklch, var(--c-bottle), white 24%), color-mix(in oklch, var(--c-chalk), white 4%));
    border: 1px solid rgba(255,255,255,0.4);
    box-shadow: 0 1px 0 0 rgba(255,255,255,0.5) inset, 0 16px 36px -14px rgba(58,42,54,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    padding: 24px;
}
.ledger__shelf .diorama { transform: var(--iso) scale(0.5) translateY(var(--py, 0px)); }

.ledger__entries {
    background: repeating-linear-gradient(
        to bottom,
        color-mix(in oklch, var(--c-plaster), white 6%) 0px,
        color-mix(in oklch, var(--c-plaster), white 6%) 27px,
        color-mix(in oklch, var(--c-smoke), transparent 70%) 27px,
        color-mix(in oklch, var(--c-smoke), transparent 70%) 28px
    );
    border: 1px solid color-mix(in oklch, var(--c-brass), transparent 50%);
    border-left: 3px solid color-mix(in oklch, var(--c-rose), black 6%);
    border-radius: 4px;
    padding: 14px 18px 14px 28px;
    font-family: var(--f-mono);
    font-size: 0.82rem;
    color: var(--c-ledger);
    box-shadow: 0 12px 28px -14px rgba(58,42,54,0.2);
}
.ledger__entries .ledger-row {
    display: grid;
    grid-template-columns: 5.5em 1fr 3.5em;
    gap: 0.8em;
    line-height: 28px;
    height: 28px;
    align-items: center;
    overflow: hidden;
    white-space: nowrap;
}
.ledger__entries .ledger-row .date { color: var(--c-ink); }
.ledger__entries .ledger-row .drink { font-family: var(--f-italic); font-style: italic; font-size: 1.05em; color: var(--c-bottle); }
.ledger__entries .ledger-row .pat { text-align: right; color: var(--c-brass); letter-spacing: 0.08em; }
.ledger__entries .ledger-head {
    display: block;
    height: 28px; line-height: 28px;
    font-family: var(--f-display);
    font-variant-caps: small-caps;
    letter-spacing: 0.1em;
    color: var(--c-ink);
    text-transform: lowercase;
    border-bottom: 1px solid color-mix(in oklch, var(--c-brass), transparent 30%);
}

/* ============================================================
   COLOPHON
   ============================================================ */
.colophon {
    margin-top: 64px;
    padding-top: 24px;
    border-top: 1px solid color-mix(in oklch, var(--c-brass), transparent 60%);
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    justify-content: center;
    font-family: var(--f-mono);
    font-size: 0.74rem;
    letter-spacing: 0.08em;
    color: var(--c-ledger);
    text-transform: lowercase;
}

/* ============================================================
   BOUNCE-ENTER (entry state before JS animates)
   ============================================================ */
[data-bounce] { will-change: transform, opacity; }
.bounce-pending { opacity: 0; transform: translateY(28px) scale(0.96); }
.bounce-in { opacity: 1; transform: translateY(0) scale(1); }