/* ======================================================================
   hangul.day — pop-art layered-depth exhibition
   Palette: muted vintage, Ben-Day dots, hard drop-shadows, torn paper
   ====================================================================== */

:root {
    --parchment: #f0e6d3;
    --indigo: #2c2a4a;
    --coral: #c75c3a;
    --teal: #4a8c7f;
    --charcoal: #2a2520;
    --umber: #8b7d6b;
    --ochre: #c9a84c;
    --blush: #d4a59a;
    --ink-wash: #1a1726;

    --shadow-x: 8px;
    --shadow-y: 8px;

    --font-display: "Black Han Sans", "Inter", sans-serif;
    --font-label: "Anybody", "Inter", sans-serif;
    --font-serif: "Noto Serif KR", "Inter", serif;
    --font-mono: "Inconsolata", "Inter", monospace;
}

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

html {
    scroll-behavior: smooth;
}

html, body {
    background: var(--parchment);
    color: var(--charcoal);
    font-family: var(--font-label);
    overflow-x: hidden;
    cursor: none;
}

body {
    min-height: 100vh;
    position: relative;
}

/* ----- Custom cursor + dot trail ----- */
.cursor {
    position: fixed;
    left: 0;
    top: 0;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--coral);
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -50%);
    mix-blend-mode: multiply;
    transition: width 0.25s ease, height 0.25s ease, background 0.25s ease;
}

.cursor.cursor-hover {
    width: 28px;
    height: 28px;
    background: var(--ochre);
}

.cursor-dot {
    position: fixed;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--coral);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    opacity: 0.7;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

/* ----- Silkscreen wipe overlay ----- */
.silkscreen-wipe {
    position: fixed;
    inset: 0;
    background: var(--coral);
    transform: translateX(-101%);
    z-index: 9998;
    pointer-events: none;
    background-image: radial-gradient(circle at 1px 1px, rgba(26, 23, 38, 0.25) 1px, transparent 1px);
    background-size: 8px 8px;
}

.silkscreen-wipe.wipe-active {
    animation: silkscreen-pass 420ms cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

@keyframes silkscreen-pass {
    0% { transform: translateX(-101%); }
    45% { transform: translateX(0); }
    55% { transform: translateX(0); }
    100% { transform: translateX(101%); }
}

/* ----- Jamo vertical navigation ----- */
.jamo-nav {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 56px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 18px;
    padding: 24px 0;
    z-index: 100;
    background: linear-gradient(90deg, rgba(240, 230, 211, 0.92), rgba(240, 230, 211, 0.0));
}

.jamo-waypoint {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--umber);
    text-decoration: none;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.25s ease;
    line-height: 1;
    transform-origin: center;
    display: inline-block;
}

.jamo-waypoint:hover {
    color: var(--teal);
    transform: scale(1.6);
}

.jamo-waypoint.active {
    color: var(--coral);
    transform: scale(2);
    text-shadow: 2px 2px 0 var(--ink-wash);
}

/* ----- Section baseline ----- */
.section {
    position: relative;
    min-height: 100vh;
    padding: 80px 80px 80px 120px;
    overflow: hidden;
    isolation: isolate;
}

/* ----- Ben-Day dot fields ----- */
.benday-field {
    position: absolute;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    opacity: 0.5;
    will-change: transform;
}

.benday-tiny {
    background-image: radial-gradient(circle, var(--blush) 1.5px, transparent 1.5px);
    background-size: 6px 6px;
    opacity: 0.45;
}

.benday-medium {
    background-size: 14px 14px;
}

.benday-coral {
    background-image: radial-gradient(circle, var(--coral) 4px, transparent 4.5px);
    opacity: 0.28;
}

.benday-teal {
    background-image: radial-gradient(circle, var(--teal) 4px, transparent 4.5px);
    opacity: 0.3;
}

.benday-umber {
    background-image: radial-gradient(circle, var(--umber) 4px, transparent 4.5px);
    opacity: 0.35;
}

.benday-blush {
    background-image: radial-gradient(circle, var(--blush) 4px, transparent 4.5px);
    opacity: 0.45;
}

.benday-coral-soft {
    background-image: radial-gradient(circle, var(--coral) 1.5px, transparent 1.5px);
    background-size: 8px 8px;
    opacity: 0.22;
}

.benday-umber-soft {
    background-image: radial-gradient(circle, var(--umber) 1.5px, transparent 1.5px);
    background-size: 8px 8px;
    opacity: 0.28;
}

/* =====================================================================
   ENTRANCE PANEL
   ===================================================================== */

.entrance {
    background: var(--parchment);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.jamo-grid-bg {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: repeat(4, 1fr);
    gap: 0;
    z-index: -1;
    transform-style: preserve-3d;
    perspective: 1200px;
    opacity: 0.12;
    filter: blur(1px);
    will-change: transform;
    animation: grid-rotate 40s linear infinite;
}

@keyframes grid-rotate {
    0% { transform: rotateY(-6deg) rotateX(2deg); }
    50% { transform: rotateY(6deg) rotateX(-2deg); }
    100% { transform: rotateY(-6deg) rotateX(2deg); }
}

.grid-tile {
    font-family: var(--font-display);
    font-size: 6vw;
    color: var(--charcoal);
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.95);
    user-select: none;
}

.hero-stack {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    text-align: center;
}

.hero-jamo-wrap {
    position: relative;
    display: inline-block;
}

.hero-jamo {
    font-family: var(--font-display);
    font-size: clamp(12rem, 32vw, 26rem);
    line-height: 0.85;
    letter-spacing: -0.02em;
    color: transparent;
    background-image: radial-gradient(circle, var(--coral) 4px, transparent 4.5px);
    background-size: 12px 12px;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-stroke: 6px var(--charcoal);
    display: inline-block;
    filter: drop-shadow(var(--shadow-x) var(--shadow-y) 0 var(--ink-wash));
    animation: breathe-letter 8s ease-in-out infinite;
    position: relative;
    will-change: filter, transform;
}

@keyframes breathe-letter {
    0%, 100% { letter-spacing: -0.02em; transform: translate(0, 0); }
    50% { letter-spacing: 0.01em; transform: translate(-1px, -1px); }
}

.hero-meta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    opacity: 0;
    animation: meta-fade 2s ease 1.5s forwards;
}

@keyframes meta-fade {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.domain-name {
    font-family: var(--font-label);
    font-weight: 300;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--umber);
    font-size: clamp(0.9rem, 1.4vw, 1.1rem);
}

.hero-sentence {
    font-family: var(--font-serif);
    font-weight: 300;
    font-size: clamp(1.1rem, 1.8vw, 1.5rem);
    line-height: 1.6;
    color: var(--charcoal);
    max-width: 720px;
}

.hero-translation {
    font-family: var(--font-label);
    font-weight: 300;
    font-style: italic;
    font-size: clamp(0.85rem, 1.2vw, 1rem);
    letter-spacing: 0.06em;
    color: var(--umber);
}

.scroll-hint {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    color: var(--umber);
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    opacity: 0.7;
}

.scroll-hint-dot {
    width: 6px;
    height: 20px;
    background: var(--coral);
    border-radius: 3px;
    animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0%, 100% { transform: translateY(0); opacity: 0.6; }
    50% { transform: translateY(6px); opacity: 1; }
}

.scroll-hint-text {
    text-transform: uppercase;
}

/* =====================================================================
   JAMO SPREADS (gallery)
   ===================================================================== */

.jamo-spread {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 80px 80px 120px;
}

.spread-coral { background: var(--parchment); }
.spread-teal { background: #e9dfcc; }
.spread-umber { background: #ece1cd; }
.spread-indigo {
    background: var(--indigo);
    color: var(--parchment);
}

.jamo-composition {
    position: relative;
    width: 100%;
    max-width: 1400px;
    min-height: 75vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto 1fr auto;
    gap: 32px;
    align-items: center;
}

.jamo-character {
    grid-column: 1 / -1;
    grid-row: 1 / 4;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    transform: scale(0.3);
    opacity: 0.2;
    transition: transform 1s cubic-bezier(0.22, 0.8, 0.36, 1), opacity 1s ease;
    will-change: transform, opacity;
}

.jamo-character.in-focus {
    transform: scale(1);
    opacity: 1;
}

.jamo-mark {
    font-family: var(--font-display);
    font-size: clamp(18rem, 48vw, 42rem);
    line-height: 0.8;
    color: transparent;
    -webkit-text-stroke: 5px var(--charcoal);
    background-image: radial-gradient(circle, var(--coral) 3.5px, transparent 4px);
    background-size: 11px 11px;
    -webkit-background-clip: text;
    background-clip: text;
    filter: drop-shadow(var(--shadow-x) var(--shadow-y) 0 var(--ink-wash));
    letter-spacing: -0.02em;
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.5s ease;
    will-change: filter, transform;
}

.spread-teal .jamo-mark {
    background-image: radial-gradient(circle, var(--teal) 3.5px, transparent 4px);
}

.spread-umber .jamo-mark {
    background-image: radial-gradient(circle, var(--umber) 3.5px, transparent 4px);
}

.spread-indigo .jamo-mark {
    -webkit-text-stroke: 5px var(--ochre);
    background-image: radial-gradient(circle, var(--blush) 3.5px, transparent 4px);
    filter: drop-shadow(var(--shadow-x) var(--shadow-y) 0 #000);
}

.jamo-character:hover .jamo-mark {
    transform: translate(-4px, -4px);
    filter: drop-shadow(calc(var(--shadow-x) + 4px) calc(var(--shadow-y) + 4px) 0 var(--ink-wash));
}

.construction-diagram {
    position: absolute;
    width: 30%;
    height: 30%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.6s ease 0.4s;
    z-index: 2;
}

.jamo-character.in-focus .construction-diagram {
    opacity: 0.75;
}

.draw-path {
    stroke-dasharray: 600;
    stroke-dashoffset: 600;
    transition: stroke-dashoffset 2.2s cubic-bezier(0.22, 0.8, 0.36, 1) 0.8s;
}

.jamo-character.in-focus .draw-path {
    stroke-dashoffset: 0;
}

.draw-circle { stroke-dasharray: 400; stroke-dashoffset: 400; }
.jamo-character.in-focus .draw-circle { stroke-dashoffset: 0; }

.draw-dot {
    opacity: 0;
    transition: opacity 0.4s ease 2.2s;
}

.jamo-character.in-focus .draw-dot { opacity: 1; }

.jamo-labels {
    grid-column: 2;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
    align-items: flex-end;
    text-align: right;
    position: relative;
    z-index: 3;
    transform: translate(60px, -40px) scale(0.9);
    opacity: 0;
    transition: opacity 0.8s ease 0.3s, transform 0.8s cubic-bezier(0.22, 0.8, 0.36, 1) 0.3s;
}

.jamo-character.in-focus ~ .jamo-labels,
.in-focus ~ .jamo-labels,
.jamo-composition .jamo-character.in-focus ~ .jamo-labels {
    opacity: 1;
    transform: translate(0, 0) scale(1);
}

.jamo-labels .roman {
    font-family: var(--font-label);
    font-weight: 800;
    font-size: clamp(1.4rem, 2.8vw, 2.2rem);
    letter-spacing: 0.08em;
    color: var(--charcoal);
}

.jamo-labels .ipa {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    letter-spacing: 0.04em;
    color: var(--coral);
}

.jamo-labels .unicode {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    color: var(--umber);
}

.labels-light .roman { color: var(--parchment); }
.labels-light .ipa { color: var(--ochre); }
.labels-light .unicode { color: var(--blush); }

.jamo-poem {
    grid-column: 1;
    grid-row: 3;
    font-family: var(--font-serif);
    font-weight: 300;
    font-size: clamp(0.95rem, 1.3vw, 1.15rem);
    line-height: 1.85;
    color: var(--charcoal);
    max-width: 460px;
    position: relative;
    z-index: 3;
    transform: translate(-40px, 40px) scale(0.9);
    opacity: 0;
    transition: opacity 0.8s ease 0.5s, transform 0.8s cubic-bezier(0.22, 0.8, 0.36, 1) 0.5s;
    padding-left: 20px;
    border-left: 3px solid var(--coral);
}

.jamo-character.in-focus ~ .jamo-poem,
.jamo-composition .jamo-character.in-focus ~ .jamo-poem {
    opacity: 1;
    transform: translate(0, 0) scale(1);
}

.jamo-poem em {
    font-style: normal;
    font-weight: 500;
    color: var(--coral);
}

.poem-light {
    color: var(--parchment);
    border-left-color: var(--ochre);
}

.poem-light em {
    color: var(--ochre);
}

/* Always-visible fallback for spreads so content appears */
.jamo-composition .jamo-labels,
.jamo-composition .jamo-poem {
    opacity: 1;
    transform: translate(0, 0) scale(1);
}

/* When focused, give extra nudge */
.jamo-composition.focused .jamo-character { transform: scale(1); opacity: 1; }

/* ----- Speech bubbles ----- */
.speech-bubble {
    position: absolute;
    font-family: var(--font-display);
    font-size: clamp(2rem, 3.5vw, 3.5rem);
    padding: 18px 32px;
    background: var(--parchment);
    color: var(--coral);
    border: 4px solid var(--charcoal);
    box-shadow: 6px 6px 0 var(--ink-wash);
    background-image: radial-gradient(circle, var(--blush) 2px, transparent 2.5px);
    background-size: 8px 8px;
    z-index: 4;
    transform: scale(0) rotate(-8deg);
    transform-origin: center;
    transition: transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
    line-height: 1;
    letter-spacing: -0.02em;
}

.speech-bubble::after {
    content: "";
    position: absolute;
    width: 24px;
    height: 24px;
    background: var(--parchment);
    border-right: 4px solid var(--charcoal);
    border-bottom: 4px solid var(--charcoal);
    transform: rotate(45deg);
    box-shadow: 2px 2px 0 var(--ink-wash);
}

.bubble-topright {
    top: 6%;
    right: 6%;
}

.bubble-topright::after {
    bottom: -14px;
    left: 30%;
}

.bubble-bottomleft {
    bottom: 10%;
    left: 14%;
}

.bubble-bottomleft::after {
    top: -14px;
    right: 30%;
    border-right: none;
    border-bottom: none;
    border-left: 4px solid var(--charcoal);
    border-top: 4px solid var(--charcoal);
    box-shadow: -2px -2px 0 var(--ink-wash);
}

.jamo-spread.in-view .speech-bubble {
    transform: scale(1) rotate(-8deg);
}

.bubble-dark {
    background: var(--indigo);
    color: var(--ochre);
    border-color: var(--ochre);
    background-image: radial-gradient(circle, var(--coral) 2px, transparent 2.5px);
    background-size: 8px 8px;
}

.bubble-dark::after {
    background: var(--indigo);
    border-color: var(--ochre) !important;
}

/* =====================================================================
   COMPOSITION WORKSHOP
   ===================================================================== */

.workshop {
    background: var(--parchment);
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    gap: 40px;
    padding: 80px 80px 80px 120px;
}

.workshop-header {
    text-align: center;
    position: relative;
    z-index: 2;
}

.workshop-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 7vw, 6rem);
    color: var(--charcoal);
    letter-spacing: -0.02em;
    line-height: 1;
    filter: drop-shadow(4px 4px 0 var(--coral));
}

.workshop-subtitle {
    font-family: var(--font-label);
    font-weight: 300;
    letter-spacing: 0.4em;
    color: var(--coral);
    margin-top: 10px;
    font-size: 0.95rem;
}

.workshop-caption {
    font-family: var(--font-serif);
    color: var(--umber);
    margin-top: 18px;
    font-size: 1rem;
    font-weight: 300;
}

.workshop-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    position: relative;
    z-index: 2;
}

.syllable-composite {
    position: relative;
    width: clamp(260px, 36vw, 480px);
    height: clamp(260px, 36vw, 480px);
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 2fr 1fr;
    grid-template-areas:
        "initial medial"
        "final final";
    border: 5px solid var(--charcoal);
    background: var(--parchment);
    background-image: radial-gradient(circle, var(--blush) 2px, transparent 2.5px);
    background-size: 10px 10px;
    box-shadow: 10px 10px 0 var(--ink-wash);
    animation: syllable-tilt 6s ease-in-out infinite;
    transform-style: preserve-3d;
    perspective: 900px;
}

@keyframes syllable-tilt {
    0%, 100% { transform: rotateY(-2deg); }
    50% { transform: rotateY(2deg); }
}

.composite-jamo {
    font-family: var(--font-display);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--charcoal);
    line-height: 1;
    letter-spacing: -0.02em;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.35s ease;
    will-change: transform;
}

.composite-initial {
    grid-area: initial;
    font-size: clamp(5rem, 14vw, 12rem);
    color: var(--coral);
    filter: drop-shadow(3px 3px 0 var(--ink-wash));
}

.composite-medial {
    grid-area: medial;
    font-size: clamp(5rem, 14vw, 12rem);
    color: var(--teal);
    filter: drop-shadow(3px 3px 0 var(--ink-wash));
}

.composite-final {
    grid-area: final;
    font-size: clamp(3.5rem, 10vw, 8rem);
    color: var(--ochre);
    filter: drop-shadow(3px 3px 0 var(--ink-wash));
}

.composite-jamo.pop {
    animation: pop-in 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes pop-in {
    0% { transform: scale(0.3) translateY(-20px); opacity: 0.3; }
    60% { transform: scale(1.15) translateY(4px); opacity: 1; }
    100% { transform: scale(1) translateY(0); opacity: 1; }
}

.composite-roman {
    font-family: var(--font-label);
    font-weight: 800;
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    letter-spacing: 0.2em;
    color: var(--charcoal);
    text-transform: uppercase;
    padding: 10px 24px;
    background: var(--ochre);
    box-shadow: 4px 4px 0 var(--ink-wash);
    border: 3px solid var(--charcoal);
}

.workshop-tracks {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 2;
}

.track {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.track-label {
    font-family: var(--font-label);
    font-weight: 600;
    letter-spacing: 0.3em;
    color: var(--umber);
    font-size: 0.85rem;
}

.track-tiles {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tile {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 2.4vw, 2.2rem);
    width: 64px;
    height: 64px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--parchment);
    color: var(--charcoal);
    border: 3px solid var(--charcoal);
    box-shadow: 4px 4px 0 var(--ink-wash);
    cursor: none;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
    position: relative;
    line-height: 1;
    padding: 0;
    font-family: var(--font-display);
}

.tile:hover {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 var(--ink-wash);
    background: var(--ochre);
}

.tile.active {
    background: var(--coral);
    color: var(--parchment);
    transform: translate(-3px, -3px);
    box-shadow: 7px 7px 0 var(--ink-wash);
}

.track[data-track="medial"] .tile.active {
    background: var(--teal);
}

.track[data-track="final"] .tile.active {
    background: var(--ochre);
    color: var(--charcoal);
}

/* =====================================================================
   HISTORY TIMELINE
   ===================================================================== */

.timeline {
    background: linear-gradient(180deg, var(--parchment) 0%, #e7dcc5 100%);
    padding: 60px 0 80px 60px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.timeline-header {
    padding: 0 60px 0 60px;
    text-align: left;
    position: relative;
    z-index: 2;
}

.timeline-title {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 6vw, 5rem);
    color: var(--charcoal);
    letter-spacing: -0.02em;
    line-height: 1;
    filter: drop-shadow(3px 3px 0 var(--teal));
}

.timeline-subtitle {
    font-family: var(--font-serif);
    font-weight: 300;
    color: var(--umber);
    font-size: 0.95rem;
    margin-top: 8px;
}

.timeline-viewport {
    position: relative;
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 60px 60px 60px 60px;
    scrollbar-width: none;
    cursor: grab;
}

.timeline-viewport::-webkit-scrollbar { display: none; }

.timeline-viewport:active { cursor: grabbing; }

.timeline-ribbon {
    position: relative;
    display: flex;
    align-items: center;
    gap: 24px;
    min-width: max-content;
    padding: 40px 40px;
}

.ribbon-band {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 16px;
    background: var(--charcoal);
    transform: translateY(-50%);
    z-index: 0;
    box-shadow: 0 6px 0 var(--ink-wash);
}

.ribbon-band::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: repeating-linear-gradient(
        90deg,
        var(--ochre) 0 24px,
        var(--charcoal) 24px 48px
    );
    opacity: 0.4;
}

.era-block {
    position: relative;
    width: 340px;
    flex-shrink: 0;
    z-index: 2;
}

.torn-paper {
    background: var(--parchment);
    padding: 28px 24px 24px;
    position: relative;
    box-shadow: 8px 8px 0 var(--ink-wash);
    border: 3px solid var(--charcoal);
    clip-path: polygon(
        0 4%, 3% 0%, 8% 3%, 15% 1%, 22% 4%, 30% 0%, 38% 3%, 46% 1%, 54% 3%, 62% 0%, 70% 4%, 78% 1%, 86% 3%, 94% 0%, 100% 4%,
        100% 96%, 95% 100%, 88% 97%, 80% 100%, 72% 97%, 64% 100%, 56% 97%, 48% 100%, 40% 97%, 32% 100%, 24% 97%, 16% 100%, 8% 97%, 3% 100%, 0 96%
    );
    min-height: 220px;
}

.torn-coral {
    background-color: var(--parchment);
    background-image: radial-gradient(circle, var(--coral) 1.5px, transparent 1.5px);
    background-size: 8px 8px;
}

.torn-teal {
    background-color: #e7dfcb;
    background-image: radial-gradient(circle, var(--teal) 1.5px, transparent 1.5px);
    background-size: 8px 8px;
}

.torn-umber {
    background-color: #ecdfc6;
    background-image: radial-gradient(circle, var(--umber) 1.5px, transparent 1.5px);
    background-size: 8px 8px;
}

.era-badge {
    position: absolute;
    top: -38px;
    left: 50%;
    transform: translateX(-50%) scale(0.6);
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background: var(--coral);
    background-image: radial-gradient(circle, var(--parchment) 2px, transparent 2.5px);
    background-size: 8px 8px;
    border: 4px solid var(--charcoal);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 4px 4px 0 var(--ink-wash);
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 3;
}

.era-badge.in-view {
    transform: translateX(-50%) scale(1);
}

.era-badge:hover {
    transform: translateX(-50%) scale(1.3);
}

.badge-teal { background-color: var(--teal); background-image: radial-gradient(circle, var(--parchment) 2px, transparent 2.5px); }
.badge-coral { background-color: var(--coral); background-image: radial-gradient(circle, var(--ochre) 2px, transparent 2.5px); }

.badge-inner {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--parchment);
    font-size: 0.8rem;
    letter-spacing: 0.04em;
    background: var(--charcoal);
    padding: 2px 6px;
    border-radius: 3px;
}

.era-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    color: var(--charcoal);
    margin-top: 28px;
    letter-spacing: -0.01em;
    line-height: 1.1;
}

.era-text {
    font-family: var(--font-serif);
    font-weight: 300;
    font-size: 0.9rem;
    line-height: 1.65;
    color: var(--charcoal);
    margin-top: 10px;
}

.era-decoration {
    width: 120px;
    height: 60px;
    margin-top: 14px;
    display: block;
}

.era-line {
    transition: stroke-dashoffset 1.8s cubic-bezier(0.22, 0.8, 0.36, 1);
}

.era-block.in-view .era-line {
    stroke-dashoffset: 0 !important;
}

.timeline-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 0 60px;
    margin-top: 10px;
    position: relative;
    z-index: 2;
}

.tl-btn {
    width: 48px;
    height: 48px;
    border: 3px solid var(--charcoal);
    background: var(--parchment);
    color: var(--charcoal);
    font-size: 1rem;
    cursor: none;
    box-shadow: 4px 4px 0 var(--ink-wash);
    transition: transform 0.25s ease, background 0.25s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-label);
}

.tl-btn:hover {
    transform: translate(-2px, -2px);
    background: var(--coral);
    color: var(--parchment);
}

.tl-progress {
    width: min(420px, 50vw);
    height: 10px;
    background: var(--parchment);
    border: 3px solid var(--charcoal);
    box-shadow: 4px 4px 0 var(--ink-wash);
    overflow: hidden;
    position: relative;
}

.tl-fill {
    display: block;
    height: 100%;
    background: var(--coral);
    background-image: radial-gradient(circle, var(--parchment) 1.5px, transparent 1.5px);
    background-size: 6px 6px;
    width: 5%;
    transition: width 0.25s ease;
}

/* =====================================================================
   COLOPHON
   ===================================================================== */

.colophon {
    background: var(--indigo);
    color: var(--parchment);
    padding: 60px 80px 60px 120px;
    position: relative;
    overflow: hidden;
}

.colophon::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, var(--coral) 1.5px, transparent 1.5px);
    background-size: 12px 12px;
    opacity: 0.18;
    pointer-events: none;
}

.colophon-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.colophon-jamo {
    font-family: var(--font-display);
    font-size: clamp(4rem, 10vw, 8rem);
    color: var(--ochre);
    line-height: 0.8;
    -webkit-text-stroke: 3px var(--parchment);
    filter: drop-shadow(4px 4px 0 #000);
}

.colophon-text {
    text-align: center;
}

.colophon-line {
    font-family: var(--font-serif);
    font-weight: 300;
    font-size: clamp(1rem, 1.6vw, 1.3rem);
    color: var(--parchment);
    letter-spacing: 0.02em;
}

.colophon-sub {
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: 0.85rem;
    color: var(--ochre);
    letter-spacing: 0.3em;
    margin-top: 10px;
    text-transform: uppercase;
}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */

@media (max-width: 900px) {
    .section { padding: 60px 28px 60px 76px; }
    .jamo-spread { padding: 60px 28px 60px 76px; }
    .workshop { padding: 60px 28px 60px 76px; }
    .timeline { padding: 40px 0 60px 56px; }
    .timeline-header { padding: 0 28px; }
    .colophon { padding: 40px 28px 40px 76px; }

    .jamo-nav { width: 44px; gap: 12px; }
    .jamo-waypoint { font-size: 1rem; }

    .jamo-composition {
        grid-template-columns: 1fr;
        min-height: 60vh;
    }

    .jamo-labels { align-items: center; text-align: center; }
    .jamo-poem { max-width: 100%; }

    .colophon-inner { grid-template-columns: 1fr; text-align: center; gap: 16px; }

    .era-block { width: 280px; }
}

@media (max-width: 600px) {
    .tile { width: 52px; height: 52px; font-size: 1.4rem; }
    .hero-jamo { -webkit-text-stroke: 4px var(--charcoal); }
    .jamo-mark { -webkit-text-stroke: 3px var(--charcoal); }
}