/* ==============================================================
   cafe-sweets.net — Confiserie de Carbone et d'Or
   Gilded Neomorphism on Carbon Black — Editorial Monograph
   ============================================================== */

:root {
    /* Palette — gold-black-luxury, carbon depth */
    --carbon-page: #040303;
    --anthracite-plate: #0a0908;
    --burnished-char: #1c1a17;
    --gold-24k: #d4af37;
    --bronze-patina: #b88a2a;
    --parchment-gold: #c8b27a;
    --oxidized-gold: #6e5a2c;
    --sugar-bloom: #fffbeb;

    /* Baseline grid */
    --baseline: 4px;

    /* Type scale (multiples of 4px) */
    --type-caption: 0.75rem;
    --type-body: 1.0625rem;
    --type-marginalia: 0.8125rem;
    --type-eyebrow: 0.75rem;
    --type-spread-title: clamp(1.75rem, 3.4vw, 2.625rem);
    --type-wordmark: clamp(3rem, 9vw, 7.5rem);
    --type-folio: 1.125rem;

    /* Tracking */
    --track-tight: -0.04em;
    --track-wide: 0.16em;
    --track-extra: 0.32em;
    --track-medium: 0.4em;

    /* Neomorphic recipe — raised plate */
    --plate-raised:
        inset 1px 1px 0 var(--burnished-char),
        inset -1px -1px 0 rgba(184, 138, 42, 0.18),
        28px 28px 72px #000000,
        -2px -2px 8px rgba(212, 175, 55, 0.04);

    /* Neomorphic recipe — pressed (inset) */
    --plate-pressed:
        inset 28px 28px 64px #000000,
        inset -2px -2px 6px rgba(212, 175, 55, 0.04),
        1px 1px 0 var(--burnished-char),
        -1px -1px 0 rgba(184, 138, 42, 0.18);

    /* Neomorphic recipe — soft tile */
    --plate-tile:
        inset 1px 1px 0 var(--burnished-char),
        inset -1px -1px 0 rgba(184, 138, 42, 0.22),
        16px 16px 44px #000000,
        -1px -1px 6px rgba(212, 175, 55, 0.05);

    --ease-monograph: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
    background-color: var(--carbon-page);
    color: var(--parchment-gold);
    font-feature-settings: "lnum" 1, "tnum" 1, "ss01" 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: auto;
}

body {
    font-family: 'Jost', 'Inter', system-ui, sans-serif;
    font-size: var(--type-body);
    line-height: 1.85;
    background-color: var(--carbon-page);
    color: var(--parchment-gold);
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Carbon noise canvas — fixed beneath everything */
#carbon-noise {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
    opacity: 0.015;
    mix-blend-mode: screen;
}

/* Page-level radial light rake at 135° */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    background: radial-gradient(
        ellipse at 30% 20%,
        rgba(255, 251, 235, 0.025) 0%,
        rgba(255, 251, 235, 0.012) 28%,
        transparent 62%
    );
}

/* ==============================================================
   Folio Marker (right gutter Roman numeral)
   ============================================================== */
.folio-marker {
    position: fixed;
    top: 50%;
    right: clamp(18px, 3vw, 56px);
    transform: translateY(-50%);
    z-index: 20;
    font-family: 'Cormorant Garamond', 'Cormorant', Georgia, serif;
    font-style: italic;
    font-weight: 500;
    color: var(--gold-24k);
    pointer-events: none;
    mix-blend-mode: screen;
}

.folio-numeral {
    display: block;
    font-size: var(--type-folio);
    letter-spacing: 0.02em;
    transition:
        opacity 0.7s var(--ease-monograph),
        transform 0.7s var(--ease-monograph);
}

.folio-numeral.is-stepping {
    opacity: 0;
    transform: translateY(-8px);
}

/* ==============================================================
   Monograph layout
   ============================================================== */
.monograph {
    position: relative;
    z-index: 2;
    display: block;
    width: 100%;
    max-width: 100%;
}

.spread {
    position: relative;
    width: 100%;
    min-height: 100vh;
    padding: clamp(56px, 8vh, 120px) clamp(24px, 6vw, 80px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.spread-inner {
    position: relative;
    width: 100%;
    max-width: 1280px;
    background: var(--anthracite-plate);
    border-radius: 2px;
    box-shadow: var(--plate-raised);
    padding: clamp(40px, 6vh, 96px) clamp(28px, 5vw, 88px);
    overflow: hidden;
}

/* Subtle rake highlight on every plate */
.spread-inner::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
        ellipse at 30% 20%,
        rgba(255, 251, 235, 0.05) 0%,
        rgba(255, 251, 235, 0.02) 22%,
        transparent 56%
    );
    pointer-events: none;
}

/* ==============================================================
   Spread I — The Frontispiece
   ============================================================== */
.spread-i .spread-inner {
    min-height: 82vh;
    padding: clamp(48px, 10vh, 128px) clamp(32px, 8vw, 112px);
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    gap: clamp(32px, 6vh, 80px);
}

.frontispiece-slug {
    display: flex;
    align-items: center;
    gap: 16px;
    justify-self: end;
    align-self: start;
    font-size: 0.8125rem;
    letter-spacing: var(--track-medium);
    text-transform: uppercase;
    color: var(--oxidized-gold);
    font-weight: 300;
}

.slug-line {
    white-space: nowrap;
}

.slug-rule {
    display: inline-block;
    width: clamp(40px, 8vw, 96px);
    height: 1px;
    background: var(--gold-24k);
    opacity: 0.6;
}

.wordmark {
    align-self: end;
    justify-self: start;
    font-family: 'Jost', sans-serif;
    font-weight: 700;
    font-size: var(--type-wordmark);
    letter-spacing: var(--track-tight);
    color: var(--gold-24k);
    line-height: 0.92;
    position: relative;
    padding: 12px 28px 16px 0;
    margin-bottom: 8px;
}

.wordmark-text {
    position: relative;
    z-index: 2;
    font-variation-settings: "wght" 700;
}

.wordmark-bloom {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
    z-index: 1;
}

.frontispiece-colophon {
    align-self: end;
    justify-self: start;
    max-width: 38ch;
    font-size: 1rem;
    line-height: 1.85;
    color: var(--parchment-gold);
    font-weight: 400;
    position: relative;
}

.cap-letter {
    display: inline-block;
    font-family: 'Jost', sans-serif;
    font-weight: 500;
    font-size: 4em;
    line-height: 0.8;
    color: var(--gold-24k);
    float: left;
    margin: 0.06em 0.16em 0 0;
    letter-spacing: -0.02em;
}

.hairline-sweep {
    position: absolute;
    bottom: clamp(48px, 10vh, 128px);
    right: clamp(32px, 8vw, 112px);
    width: 0;
    height: 1px;
    background: var(--gold-24k);
    opacity: 0.7;
    transition: width 1.4s var(--ease-monograph);
}

.spread-i.is-revealed .hairline-sweep {
    width: clamp(120px, 22vw, 320px);
}

/* ==============================================================
   Spread II — The Specimen Plates
   ============================================================== */
.spread-ii .spread-inner {
    padding: clamp(48px, 8vh, 112px) clamp(32px, 6vw, 96px);
}

.spread-header {
    margin-bottom: clamp(36px, 6vh, 64px);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.spread-header.center {
    align-items: center;
    text-align: center;
}

.spread-eyebrow {
    font-family: 'Jost', sans-serif;
    font-size: var(--type-eyebrow);
    font-weight: 300;
    letter-spacing: var(--track-extra);
    text-transform: uppercase;
    color: var(--oxidized-gold);
}

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

.spread-title {
    font-family: 'Jost', sans-serif;
    font-size: var(--type-spread-title);
    font-weight: 500;
    letter-spacing: var(--track-tight);
    color: var(--parchment-gold);
    line-height: 1.16;
    max-width: 28ch;
    padding: 12px 16px 16px 0;
    position: relative;
}

.specimen-grid {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(40px, 5vw, 88px);
    align-items: start;
}

.specimen-text {
    grid-column: 1;
    padding: 24px 28px 24px 4px;
    position: relative;
}

.specimen-paragraph {
    font-size: 1.0625rem;
    line-height: 1.85;
    color: var(--parchment-gold);
    font-weight: 400;
    margin-bottom: 1.25em;
    max-width: 38ch;
}

.specimen-paragraph:first-of-type::first-letter {
    /* Drop-cap fallback handled by .drop-cap span */
}

.drop-cap {
    display: inline-block;
    font-family: 'Jost', sans-serif;
    font-weight: 600;
    font-size: 4.4em;
    line-height: 0.78;
    color: var(--sugar-bloom);
    float: left;
    margin: 0.05em 0.18em 0 0;
    letter-spacing: -0.04em;
    text-shadow: none;
}

.marginalia {
    display: flex;
    gap: 12px;
    margin-top: 2em;
    padding-top: 24px;
    border-top: 1px solid rgba(110, 90, 44, 0.32);
    font-style: italic;
    font-size: 0.875rem;
    color: var(--oxidized-gold);
    line-height: 1.65;
    max-width: 40ch;
}

.marginalia-numeral {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-style: italic;
    color: var(--gold-24k);
    font-weight: 500;
    flex-shrink: 0;
}

.specimen-plate {
    grid-column: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
}

.plate-pillow {
    background: var(--anthracite-plate);
    border-radius: 2px;
    padding: 24px;
    box-shadow: var(--plate-tile);
    width: 100%;
    max-width: 480px;
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.plate-pillow::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 2px;
    background: radial-gradient(
        ellipse at 30% 20%,
        rgba(255, 251, 235, 0.06) 0%,
        rgba(255, 251, 235, 0.02) 24%,
        transparent 56%
    );
    pointer-events: none;
}

.specimen-disc {
    width: 100%;
    height: 100%;
    display: block;
    position: relative;
    z-index: 1;
}

.plate-caption {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-family: 'Jost', sans-serif;
    font-weight: 300;
    font-size: var(--type-caption);
    letter-spacing: var(--track-extra);
    text-transform: uppercase;
    color: var(--oxidized-gold);
}

.caption-numeral {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-style: italic;
    font-weight: 500;
    font-size: 1.0625rem;
    text-transform: none;
    letter-spacing: 0.02em;
    color: var(--gold-24k);
}

/* ==============================================================
   Spread III — Index of Ingredients
   ============================================================== */
.spread-iii .spread-inner {
    padding: clamp(48px, 8vh, 112px) clamp(32px, 6vw, 96px);
}

.orbit-stage {
    position: relative;
    width: 100%;
    min-height: clamp(520px, 64vh, 720px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.orbit-glyphs {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.orbit-glyph {
    position: absolute;
    width: clamp(62px, 8vw, 96px);
    height: clamp(62px, 8vw, 96px);
    background: var(--anthracite-plate);
    border-radius: 50%;
    box-shadow:
        inset 1px 1px 0 var(--burnished-char),
        inset -1px -1px 0 rgba(184, 138, 42, 0.16),
        10px 10px 28px #000000,
        -1px -1px 4px rgba(212, 175, 55, 0.04);
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translate(-50%, -50%) rotate(0deg);
    transition: transform 1.6s var(--ease-monograph);
}

.orbit-glyph::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: radial-gradient(
        ellipse at 30% 20%,
        rgba(255, 251, 235, 0.06) 0%,
        rgba(255, 251, 235, 0.02) 24%,
        transparent 56%
    );
    pointer-events: none;
}

.orbit-glyph svg {
    width: 78%;
    height: 78%;
    overflow: visible;
}

.orbit-text {
    position: relative;
    width: clamp(280px, 36ch, 36ch);
    max-width: 36ch;
    background: var(--anthracite-plate);
    border-radius: 2px;
    padding: 36px 40px;
    box-shadow: var(--plate-tile);
    z-index: 2;
    text-align: center;
}

.orbit-text::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 2px;
    background: radial-gradient(
        ellipse at 30% 20%,
        rgba(255, 251, 235, 0.05) 0%,
        rgba(255, 251, 235, 0.018) 22%,
        transparent 54%
    );
    pointer-events: none;
}

.index-paragraph {
    font-family: 'Jost', sans-serif;
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--parchment-gold);
    margin-bottom: 1.4em;
    text-align: left;
    position: relative;
}

.index-paragraph:last-child {
    margin-bottom: 0;
    color: var(--oxidized-gold);
    font-size: 0.875rem;
}

.cormorant {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-style: italic;
    font-weight: 500;
    color: var(--gold-24k);
}

/* ==============================================================
   Spread IV — Colophon
   ============================================================== */
.spread-iv .spread-inner {
    min-height: 82vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.colophon-inner {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: clamp(28px, 4vh, 48px);
    max-width: 720px;
    margin: 0 auto;
}

.colophon-mark {
    margin-top: 16px;
    padding: 24px 32px;
    background: var(--anthracite-plate);
    border-radius: 2px;
    box-shadow: var(--plate-pressed);
    position: relative;
}

.colophon-domain {
    font-family: 'Jost', sans-serif;
    font-weight: 500;
    font-size: clamp(1.5rem, 3.4vw, 2.5rem);
    letter-spacing: var(--track-tight);
    color: var(--oxidized-gold);
    text-shadow:
        1px 1px 0 #000000,
        -1px -1px 0 rgba(212, 175, 55, 0.04);
}

.colophon-ledger {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
    max-width: 480px;
    margin-top: 16px;
}

.ledger-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 24px;
    align-items: baseline;
    text-align: left;
    padding: 12px 0;
    border-bottom: 1px solid rgba(110, 90, 44, 0.22);
}

.ledger-row:last-child {
    border-bottom: none;
}

.ledger-row dt {
    font-family: 'Jost', sans-serif;
    font-size: var(--type-caption);
    font-weight: 300;
    letter-spacing: var(--track-extra);
    text-transform: uppercase;
    color: var(--oxidized-gold);
    text-align: left;
}

.ledger-row dd {
    font-family: 'Jost', sans-serif;
    font-size: 0.9375rem;
    color: var(--parchment-gold);
    text-align: right;
    grid-column: 3;
    font-weight: 400;
}

.ledger-row::before {
    content: "";
    grid-column: 2;
    width: 1px;
    height: 16px;
    background: rgba(212, 175, 55, 0.28);
    align-self: center;
}

.colophon-note {
    max-width: 52ch;
    font-size: 0.9375rem;
    line-height: 1.75;
    color: var(--oxidized-gold);
    font-style: italic;
    margin-top: 8px;
}

/* ==============================================================
   Border-animate engine — SVG overlay
   ============================================================== */
.border-animate {
    position: relative;
}

.border-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: visible;
    z-index: 3;
}

.border-svg rect {
    fill: none;
    stroke: var(--gold-24k);
    stroke-width: 1;
    vector-effect: non-scaling-stroke;
    opacity: 0.78;
    stroke-dasharray: var(--perimeter, 1000);
    stroke-dashoffset: var(--perimeter, 1000);
    transition: stroke-dashoffset 1.6s var(--ease-monograph);
}

.border-animate.is-traced .border-svg rect {
    stroke-dashoffset: 0;
}

.border-animate.is-untraced .border-svg rect {
    stroke-dashoffset: var(--perimeter, 1000);
    transition: stroke-dashoffset 0.4s var(--ease-monograph);
}

/* ==============================================================
   Sugar bloom particles (frontispiece only)
   ============================================================== */
.bloom-particle {
    position: absolute;
    width: 1px;
    height: 1px;
    background: var(--sugar-bloom);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0;
    box-shadow: 0 0 2px rgba(255, 251, 235, 0.7);
}

/* ==============================================================
   Reveal state — entry transitions
   ============================================================== */
.spread {
    opacity: 1;
}

.spread-inner > * {
    opacity: 0;
    transform: translateY(8px);
    transition:
        opacity 1.2s var(--ease-monograph),
        transform 1.2s var(--ease-monograph);
}

.spread.is-revealed .spread-inner > * {
    opacity: 1;
    transform: translateY(0);
}

.spread.is-revealed .spread-inner > *:nth-child(2) {
    transition-delay: 0.18s;
}

.spread.is-revealed .spread-inner > *:nth-child(3) {
    transition-delay: 0.32s;
}

.spread.is-revealed .spread-inner > *:nth-child(4) {
    transition-delay: 0.46s;
}

/* ==============================================================
   Responsive
   ============================================================== */
@media (max-width: 880px) {
    .spread {
        padding: 48px 18px;
    }

    .spread-inner {
        padding: 40px 24px;
    }

    .spread-i .spread-inner {
        padding: 56px 24px;
    }

    .frontispiece-slug {
        justify-self: start;
        flex-wrap: wrap;
    }

    .specimen-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .specimen-text,
    .specimen-plate {
        grid-column: 1;
    }

    .orbit-stage {
        min-height: 600px;
    }

    .orbit-text {
        width: calc(100% - 24px);
        padding: 28px 24px;
    }

    .ledger-row {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .ledger-row::before {
        display: none;
    }

    .ledger-row dd {
        grid-column: 1;
        text-align: left;
    }

    .folio-marker {
        right: 12px;
    }
}

@media (max-width: 560px) {
    .wordmark {
        font-size: clamp(2.5rem, 14vw, 4.5rem);
    }

    .frontispiece-slug {
        font-size: 0.6875rem;
        letter-spacing: 0.32em;
    }

    .slug-rule {
        width: 32px;
    }
}

/* ==============================================================
   Reduced motion
   ============================================================== */
@media (prefers-reduced-motion: reduce) {
    .border-svg rect,
    .spread-inner > *,
    .hairline-sweep,
    .folio-numeral,
    .orbit-glyph {
        transition: none !important;
        animation: none !important;
    }

    .border-animate .border-svg rect {
        stroke-dashoffset: 0;
    }

    .spread-inner > * {
        opacity: 1;
        transform: none;
    }

    .spread-i.is-revealed .hairline-sweep {
        width: clamp(120px, 22vw, 320px);
    }
}