/* Uncountable — Interactive Exhibit */

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

:root {
    --bg: #0a0a0f;
    --bg-card: #12121a;
    --bg-table: #0d0d14;
    --text: #e8e6e0;
    --text-dim: #6b6862;
    --text-faint: #3a3833;
    --gold: #d4a574;
    --gold-bright: #f0c896;
    --gold-dim: #8a6e4a;
    --white: #f5f3ee;
    --error: #d4748a;
    --green: #7ad4a5;
    --serif: 'Cormorant Garamond', 'Times New Roman', serif;
    --sans: 'Inter', system-ui, -apple-system, sans-serif;
    --mono: 'JetBrains Mono', 'Courier New', monospace;
    --max-width: 680px;
}

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    font-weight: 300;
    line-height: 1.8;
    overflow-x: hidden;
    position: relative;
}

/* Diagonal grid background */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-image:
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 80px,
            rgba(212, 165, 116, 0.08) 80px,
            rgba(212, 165, 116, 0.08) 81px
        ),
        repeating-linear-gradient(
            135deg,
            transparent,
            transparent 80px,
            rgba(212, 165, 116, 0.06) 80px,
            rgba(212, 165, 116, 0.06) 81px
        );
    pointer-events: none;
    z-index: 0;
}

/* Nav Bar */
.nav-bar {
    position: fixed; top: 0; left: 0; right: 0;
    display: flex; justify-content: space-between; align-items: center;
    padding: 16px 32px;
    background: rgba(10, 10, 15, 0.92);
    backdrop-filter: blur(12px);
    z-index: 100;
    font-size: 0.85rem;
}
.nav-wrapper {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.92);
    backdrop-filter: blur(12px);
}
main { position: relative; z-index: 1; }
.nav-brand {
    font-family: var(--serif);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--gold);
    letter-spacing: 0.05em;
}
.nav-progress {
    color: var(--text-dim);
    font-family: var(--mono);
    font-size: 0.8rem;
}
.nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}
.lang-toggle {
    background: transparent;
    border: 1px solid var(--gold-dim);
    color: var(--gold);
    padding: 4px 12px;
    border-radius: 4px;
    font-family: var(--mono);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.3s;
}
.lang-toggle:hover { border-color: var(--gold); background: rgba(212,165,116,0.05); }

/* Gallery Sections */
.gallery {
    min-height: 100vh;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    padding: 120px 24px 80px;
    position: relative;
    border-bottom: 1px solid rgba(212, 165, 116, 0.04);
}
.gallery-1 { background: transparent; }
.gallery-2 { background: transparent; }
.gallery-3 { background: transparent; }
.gallery-4 { background: transparent; }
.gallery-5 { background: transparent; }
.gallery-6 { background: transparent; }

.gallery-inner { max-width: var(--max-width); width: 100%; text-align: center; }

/* Diagonal motif — subtle background accent */
.gallery::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 2px;
    background: linear-gradient(135deg, transparent 48%, rgba(212, 165, 116, 0.08) 49%, rgba(212, 165, 116, 0.08) 51%, transparent 52%);
    pointer-events: none;
}

.gallery-number {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--gold-dim);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 8px;
}
.gallery-title {
    font-family: var(--serif);
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 600;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 4px;
}
.gallery-subtitle {
    font-family: var(--sans);
    font-size: 0.95rem;
    color: var(--text-dim);
    margin-bottom: 48px;
}

/* Hero Question */
.hero-question { text-align: center; padding: 40px 0 32px; }
.hero-symbol {
    font-family: var(--serif);
    font-size: clamp(12rem, 36vw, 21rem);
    color: var(--gold);
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0.8;
}
.hero-text {
    font-family: var(--serif);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 500;
    color: var(--white);
    line-height: 1.4;
}

/* Narration Block */
.narration-block {
    margin: 24px 0;
    text-align: center;
}
.narration-block p {
    color: var(--text);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 8px;
}
.narration-block strong { color: var(--gold); font-weight: 600; }
.narration-block em { color: var(--gold-bright); font-style: italic; }
.narration-block.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.narration-block.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.key-line {
    font-family: var(--serif);
    font-size: 1.3rem;
    color: var(--white);
    font-weight: 500;
    margin: 8px 0;
}
.key-line.highlight {
    color: var(--gold);
    font-weight: 600;
}

/* Count Zone */
.count-zone {
    text-align: center;
    margin: 32px 0;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--text-faint);
    border-radius: 8px;
}
.count-display {
    font-family: var(--mono);
    font-size: clamp(1.5rem, 8vw, 3rem);
    font-weight: 700;
    color: var(--gold-bright);
    margin: 16px 0;
    transition: transform 0.15s ease;
    word-break: break-all;
}
.count-display.bump { transform: scale(1.15); }
.count-hint {
    margin-top: 16px;
    color: var(--gold-dim);
    font-size: 0.95rem;
    font-style: italic;
    line-height: 1.6;
}

/* Count Buttons */
.count-buttons {
    display: flex;
    gap: 12px 8px;
    flex-wrap: wrap;
    justify-content: center;
}
.count-btn {
    min-width: 56px;
    font-size: 0.85rem;
    padding: 10px 16px;
}

/* Number Grid */
.number-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 4px;
    max-width: 560px;
    margin: 24px auto;
}
.grid-cell {
    aspect-ratio: 1;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--text-faint);
    border-radius: 4px;
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--text);
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
}
.grid-cell:hover {
    border-color: var(--gold-dim);
    background: rgba(212, 165, 116, 0.05);
}
.grid-cell.selected {
    background: rgba(212, 165, 116, 0.2);
    border-color: var(--gold);
    color: var(--gold-bright);
    font-weight: 700;
    transform: scale(1.05);
}
.grid-cell.correct {
    background: rgba(122, 212, 165, 0.15);
    border-color: var(--green);
    color: var(--green);
    font-weight: 700;
}
.grid-cell.wrong {
    background: rgba(212, 116, 138, 0.15);
    border-color: var(--error);
    color: var(--error);
    text-decoration: line-through;
}
.grid-cell.missed {
    background: rgba(212, 165, 116, 0.1);
    border-color: var(--gold-dim);
    color: var(--gold);
    font-weight: 700;
    animation: missedPulse 0.5s ease;
}
@keyframes missedPulse {
    0% { transform: scale(0.8); opacity: 0; }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); opacity: 1; }
}

.grid-stats {
    display: flex; gap: 24px; justify-content: center;
    margin: 16px 0;
}
.grid-stat { text-align: center; }
.stat-val {
    display: block;
    font-family: var(--mono);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--gold-bright);
}
.grid-stat:nth-child(2) .stat-val { color: var(--text-dim); }
.grid-stat:nth-child(3) .stat-val { color: var(--error); }
.stat-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-top: 4px;
}

.ratio-summary {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-top: 8px;
}

/* Pair Test Zone */
.pair-test-zone {
    margin: 24px 0;
    text-align: center;
}
.pair-test-result {
    margin: 16px 0;
    min-height: 40px;
}
.pair-test-result .pair-card {
    display: inline-flex; align-items: center; gap: 16px;
    padding: 12px 24px;
    background: var(--bg-card);
    border: 1px solid var(--gold-dim);
    border-radius: 8px;
    font-family: var(--mono);
    font-size: 1.2rem;
    animation: cardPop 0.4s ease;
    max-width: 100%;
    flex-wrap: wrap;
    justify-content: center;
    word-break: break-all;
    overflow-wrap: break-word;
}
@keyframes cardPop {
    from { opacity: 0; transform: scale(0.7); }
    to { opacity: 1; transform: scale(1); }
}
.pair-card .natural { color: var(--text); word-break: break-all; }
.pair-card .arrow { color: var(--gold-dim); flex-shrink: 0; }
.pair-card .square { color: var(--gold-bright); font-weight: 700; word-break: break-all; }
.pair-history {
    display: flex; flex-wrap: wrap; gap: 6px; justify-content: center;
    margin-top: 12px;
    max-height: 100px;
    overflow-y: auto;
}
.pair-history-item {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    padding: 2px 8px;
    background: var(--bg-card);
    border: 1px solid var(--text-faint);
    border-radius: 12px;
    word-break: break-all;
    max-width: 100%;
}

/* Sub-screen */
.sub-screen {
    padding: 40px 0;
    border-top: 1px solid rgba(212, 165, 116, 0.06);
    animation: fadeInUp 0.6s ease;
    text-align: center;
    scroll-margin-top: 80px;
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

.angle-badge {
    display: inline-block;
    padding: 4px 16px;
    background: rgba(212, 165, 116, 0.1);
    border: 1px solid var(--gold-dim);
    border-radius: 20px;
    color: var(--gold);
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}
.angle-badge.collision {
    background: rgba(212, 116, 138, 0.1);
    border-color: var(--error);
    color: var(--error);
}
.angle-title {
    font-family: var(--serif);
    font-size: 1.6rem;
    color: var(--white);
    font-weight: 600;
    margin-bottom: 24px;
    text-align: center;
}

.mono-line {
    font-family: var(--mono);
    font-size: 1rem;
    color: var(--gold-bright);
    text-align: center;
    margin: 12px 0;
    letter-spacing: 0.03em;
}

.scroll-hint-static {
    text-align: center;
    color: var(--text-faint);
    font-size: 0.8rem;
    margin: 24px 0;
}

/* Ratio Demo */
.ratio-demo {
    margin: 32px auto;
    max-width: 480px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--text-faint);
    border-radius: 8px;
}
.ratio-bar {
    display: flex;
    width: 100%;
    height: 32px;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--text-faint);
}
.ratio-fill {
    background: var(--gold);
    transition: width 0.3s ease;
}
.ratio-skip {
    background: var(--bg-table);
    transition: width 0.3s ease;
}
.ratio-labels {
    display: flex; justify-content: space-between;
    margin-top: 8px;
    font-size: 0.8rem;
}
.ratio-in { color: var(--gold); }
.ratio-out { color: var(--text-dim); }
.ratio-controls {
    margin-top: 16px;
    text-align: center;
}
.ratio-controls label {
    font-size: 0.85rem;
    color: var(--text-dim);
}
input[type=range] {
    width: 100%;
    margin-top: 8px;
    accent-color: var(--gold);
}

/* Collision Zone */
.collision-zone {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin: 32px 0;
    flex-wrap: wrap;
}
.collision-card {
    flex: 1;
    min-width: 220px;
    max-width: 260px;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
}
.collision-card.left {
    background: rgba(122, 212, 165, 0.05);
    border: 1px solid rgba(122, 212, 165, 0.2);
}
.collision-card.right {
    background: rgba(212, 165, 116, 0.05);
    border: 1px solid rgba(212, 165, 116, 0.2);
}
.collision-label {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}
.collision-statement {
    font-family: var(--serif);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
}
.left .collision-statement { color: var(--green); }
.right .collision-statement { color: var(--gold-bright); }
.collision-reason {
    font-size: 0.85rem;
    color: var(--text-dim);
}
.collision-vs {
    display: flex; align-items: center;
    font-family: var(--serif);
    font-size: 1.5rem;
    color: var(--text-faint);
    font-style: italic;
}

/* Pair Zone */
.pair-zone {
    display: flex; gap: 24px;
    justify-content: center;
    margin: 32px 0;
    flex-wrap: wrap;
}
.pair-col {
    text-align: center;
    min-width: 280px;
}
.pair-label {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--gold-dim);
    margin-bottom: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.pair-numbers {
    display: flex; flex-wrap: wrap; gap: 6px;
    justify-content: center;
    min-height: 40px;
    align-items: flex-start;
}
.pair-num {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 36px; height: 36px;
    padding: 4px 8px;
    background: var(--bg-card);
    border: 1px solid var(--text-faint);
    border-radius: 4px;
    font-family: var(--mono);
    font-size: 0.9rem;
    color: var(--text);
    transition: all 0.4s ease;
}
/* Scroll Hint */
.scroll-hint {
    position: absolute; bottom: 30px; left: 50%;
    transform: translateX(-50%);
    color: var(--text-faint);
    font-size: 0.8rem;
    animation: bounce 2s infinite;
}
@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* Narration Text */
.narration-text {
    text-align: center;
    color: var(--text);
    font-size: 1rem;
    line-height: 1.8;
    margin: 24px 0;
}

/* Quote */
blockquote.quote {
    margin: 16px 0;
    padding: 16px 24px;
    border-left: 3px solid var(--gold-dim);
    background: var(--bg-card);
    font-family: var(--serif);
    font-size: 1.15rem;
    color: var(--white);
    font-style: italic;
    line-height: 1.6;
    border-radius: 0 4px 4px 0;
    text-align: center;
}

/* Input Zone */
.input-zone { margin-top: 24px; text-align: center; }
.instruction {
    color: var(--text-dim);
    font-size: 0.95rem;
    text-align: center;
    margin-bottom: 24px;
}
.input-row {
    display: flex; gap: 12px;
    max-width: 480px; margin: 0 auto;
}
input[type="text"] {
    flex: 1;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--text-faint);
    border-radius: 4px;
    color: var(--text);
    font-family: var(--mono);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}
input[type="text"]:focus { border-color: var(--gold-dim); }

/* Buttons */
.btn-primary, .btn-secondary, .btn-ghost {
    padding: 12px 28px;
    border: none; border-radius: 4px;
    font-family: var(--sans);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 0.02em;
}
.btn-primary { background: var(--gold); color: var(--bg); }
.btn-primary:hover { background: var(--gold-bright); }
.btn-secondary {
    background: transparent;
    color: var(--gold);
    border: 1px solid var(--gold-dim);
}
.btn-secondary:hover { border-color: var(--gold); background: rgba(212,165,116,0.05); }
.btn-ghost {
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--text-faint);
}
.btn-ghost:hover { color: var(--text); border-color: var(--text-dim); }

/* Number List */
.number-list {
    margin: 24px auto; max-width: 480px; min-height: 60px;
    display: flex; flex-wrap: wrap; gap: 8px;
    justify-content: center; align-items: flex-start;
}
.number-list .empty-hint {
    color: var(--text-faint);
    font-size: 0.85rem;
    width: 100%; text-align: center; padding: 20px 0;
}
.number-chip {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px;
    background: var(--bg-card);
    border: 1px solid rgba(212, 165, 116, 0.15);
    border-radius: 20px;
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--text);
    animation: chipIn 0.4s ease;
}
@keyframes chipIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}
.number-chip .remove {
    color: var(--text-faint);
    cursor: pointer;
    font-size: 0.8rem;
    transition: color 0.2s;
}
.number-chip .remove:hover { color: var(--error); }

/* Counter */
.counter-row {
    display: flex; justify-content: space-between; align-items: center;
    margin-top: 24px; max-width: 480px; margin-left: auto; margin-right: auto;
}
.counter { color: var(--text-dim); font-size: 0.85rem; font-family: var(--mono); }

/* Infinite Table */
.table-container { margin: 32px 0; }
.table-claim {
    text-align: center;
    color: var(--gold);
    font-size: 0.9rem;
    margin-bottom: 16px;
    padding: 8px 16px;
    border: 1px solid var(--gold-dim);
    border-radius: 4px;
    background: rgba(212, 165, 116, 0.03);
}
.infinite-table {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid rgba(212, 165, 116, 0.1);
    border-radius: 8px;
    background: var(--bg-table);
    padding: 8px;
    scrollbar-width: thin;
    scrollbar-color: var(--gold-dim) var(--bg-table);
    box-shadow: 0 0 30px rgba(212, 165, 116, 0.02);
}
.infinite-table::-webkit-scrollbar { width: 6px; }
.infinite-table::-webkit-scrollbar-track { background: var(--bg-table); }
.infinite-table::-webkit-scrollbar-thumb { background: var(--gold-dim); border-radius: 3px; }

.table-row {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 12px;
    font-family: var(--mono);
    font-size: 0.85rem;
    border-bottom: 1px solid rgba(58, 56, 51, 0.3);
    transition: background 0.2s;
    flex-wrap: wrap;
}
.table-row:hover { background: rgba(212, 165, 116, 0.03); }
.table-row .row-num { color: var(--gold-dim); min-width: 60px; font-size: 0.75rem; }
.table-row .row-val { color: var(--text); letter-spacing: 0.05em; }
.table-row.ellipsis-row { border-top: 1px solid var(--gold-dim); border-bottom: none; opacity: 0.6; }
.ellipsis-val { color: var(--gold-dim) !important; font-style: italic; }

.table-note {
    text-align: center;
    color: var(--text-faint);
    font-size: 0.8rem;
    margin-top: 8px;
    font-style: italic;
}

/* Diagonal Table */
.diagonal-table-container {
    overflow: hidden;
    margin: 24px 0;
    padding: 16px;
    background: transparent;
    border: 1px solid rgba(212, 165, 116, 0.15);
    border-radius: 8px;
    box-shadow: 0 0 40px rgba(212, 165, 116, 0.03), inset 0 1px 0 rgba(255, 255, 255, 0.02);
    position: relative;
}
/* Diagonal light band for Gallery 4 */
.gallery-4 { position: relative; }
.gallery-4::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 0;
    background: linear-gradient(
        45deg,
        transparent 44%,
        rgba(212, 165, 116, 0.08) 48%,
        rgba(240, 200, 150, 0.12) 50%,
        rgba(212, 165, 116, 0.08) 52%,
        transparent 56%
    );
}

table.diagonal-table {
    border-collapse: collapse;
    margin: 0 auto;
    font-family: var(--mono);
    font-size: 1.1rem;
    max-width: 100%;
    position: relative;
    z-index: 1;
}
table.diagonal-table td {
    width: 36px; height: 36px;
    text-align: center; vertical-align: middle;
    color: var(--text);
    border: 1px solid rgba(58, 56, 51, 0.3);
    transition: all 0.4s ease;
    position: relative;
}
table.diagonal-table .row-label {
    color: var(--gold-dim); font-size: 0.75rem; width: 50px;
    border: none; padding-right: 8px; text-align: right;
    white-space: nowrap;
}
table.diagonal-table .decimal-prefix {
    color: var(--text-dim); border: none; padding-right: 4px;
}
table.diagonal-table td.diagonal-highlight {
    background: rgba(212, 165, 116, 0.15);
    color: var(--gold-bright);
    font-weight: 700;
    box-shadow: inset 0 0 0 2px var(--gold);
    border-radius: 4px;
}
table.diagonal-table td.diagonal-extracted {
    background: rgba(212, 165, 116, 0.25);
    color: var(--gold-bright);
    font-weight: 700;
}
td.ellipsis-cell {
    color: var(--gold-dim);
    font-weight: 400;
    border: 1px solid rgba(58, 56, 51, 0.2);
}

.narration-text.finite-note {
    color: var(--text-dim);
    font-size: 0.85rem;
    line-height: 1.6;
    margin: 12px 0;
}

/* Step Controls */
.step { margin: 24px 0; text-align: center; }
.step-controls {
    display: flex; gap: 12px; justify-content: center;
    margin-top: 16px;
}
.step-hint {
    text-align: center;
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-top: 12px;
}

/* Increment Zone */
.increment-zone {
    display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
    margin: 24px 0;
}
.increment-card {
    width: 56px; height: 56px;
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
    background: var(--bg-card);
    border: 2px solid var(--gold-dim);
    transition: background 0.5s ease 0.3s, border-color 0.5s ease 0.3s;
}
.increment-card.incremented {
    background: var(--gold);
    border-color: var(--gold);
}
.increment-card-num {
    position: absolute;
    left: 0; right: 0;
    display: flex; align-items: center; justify-content: center;
    height: 100%;
    font-family: var(--mono); font-size: 1.4rem; font-weight: 700;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.increment-card-num.old {
    top: 0;
    color: var(--gold-bright);
}
.increment-card-num.new {
    top: -100%;
    color: var(--bg);
}
.increment-card.incremented .increment-card-num.old {
    transform: translateY(100%);
}
.increment-card.incremented .increment-card-num.new {
    transform: translateY(100%);
}

.new-number-display {
    text-align: center;
    margin: 24px 0;
    font-family: var(--mono);
    font-size: 1.5rem;
}
.new-number-display.pinned {
    margin-bottom: 24px;
    padding: 12px 24px;
    background: rgba(212, 165, 116, 0.05);
    border: 1px solid rgba(212, 165, 116, 0.2);
    border-radius: 4px;
    display: inline-block;
}
.new-number-display .label { color: var(--text-dim); font-size: 0.85rem; margin-right: 8px; }
.new-number-display .new-number { color: var(--gold-bright); font-weight: 700; letter-spacing: 0.05em; }

/* Check Table */
.check-table { margin: 24px 0; overflow-x: auto; }
.check-row {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 16px;
    font-family: var(--mono);
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(58, 56, 51, 0.3);
    transition: all 0.4s ease;
    flex-wrap: wrap;
}
.check-row.checked { opacity: 0.75; }
.check-row.checked .highlight-digit { color: var(--error); }
.check-row .check-num { color: var(--gold-dim); min-width: 60px; font-size: 0.75rem; }
.check-row .check-digits { color: var(--text); flex: 1; }
.check-row .check-result { font-size: 0.85rem; }
.check-row .check-result.nomatch { color: var(--error); }
.check-row .highlight-digit { color: var(--gold-bright); font-weight: 700; }

.conclusion-text {
    text-align: center;
    margin: 24px 0;
    padding: 16px 24px;
    background: rgba(212, 116, 138, 0.05);
    border: 1px solid rgba(212, 116, 138, 0.15);
    border-radius: 4px;
    color: var(--text);
    font-size: 1rem;
    line-height: 1.6;
}
.conclusion-text strong { color: var(--error); }

/* Infinity Comparison */
.infinity-comparison {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin: 32px 0;
    flex-wrap: wrap;
}
.inf-card {
    flex: 1;
    min-width: 220px;
    max-width: 280px;
    padding: 24px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
}
.inf-card.left {
    background: rgba(122, 212, 165, 0.05);
    border: 1px solid rgba(122, 212, 165, 0.2);
}
.inf-card.right {
    background: rgba(212, 116, 138, 0.05);
    border: 1px solid rgba(212, 116, 138, 0.2);
}
.inf-card-title {
    font-family: var(--serif);
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 8px;
}
.left .inf-card-title { color: var(--green); }
.right .inf-card-title { color: var(--error); }
.inf-card-seq {
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 12px;
}
.inf-card-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 12px;
}
.inf-card-status.yes {
    background: rgba(122, 212, 165, 0.15);
    color: var(--green);
}
.inf-card-status.no {
    background: rgba(212, 116, 138, 0.15);
    color: var(--error);
}
.inf-card-note {
    font-size: 0.8rem;
    color: var(--text-dim);
    line-height: 1.6;
    margin-bottom: 12px;
}
.inf-card-tag {
    font-family: var(--serif);
    font-size: 1rem;
    font-weight: 600;
    color: var(--gold);
}
.right .inf-card-tag { color: var(--error); }
.inf-card-vs {
    display: flex; align-items: center;
    font-family: var(--serif);
    font-size: 1.5rem;
    color: var(--text-faint);
    font-style: italic;
}


/* Portraits */
.portrait {
    width: 140px;
    height: 140px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid var(--gold-dim);
    margin-bottom: 16px;
    filter: sepia(0.3) brightness(0.9);
    opacity: 0.9;
    box-shadow: 0 0 30px rgba(212, 165, 116, 0.08);
}

/* Conclusion Sequence */
.conclusion-sequence { max-width: 560px; margin: 0 auto; text-align: center; }
.conclusion-symbol {
    font-family: var(--serif);
    font-size: clamp(9rem, 24vw, 15rem);
    color: var(--gold);
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.conclusion-symbol.reveal.visible { opacity: 0.8; transform: translateY(0); }
.conclusion-line {
    font-family: var(--sans);
    font-size: 1.1rem;
    color: var(--text);
    line-height: 2;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.conclusion-line.reveal.visible { opacity: 1; transform: translateY(0); }
.conclusion-line.highlight {
    font-family: var(--serif);
    font-size: 1.5rem;
    color: var(--gold);
    font-weight: 600;
    margin: 8px 0;
    text-shadow: 0 0 30px rgba(212, 165, 116, 0.15);
}
.conclusion-line.big {
    font-family: var(--serif);
    font-size: 1.6rem;
    color: var(--white);
    font-weight: 600;
    line-height: 1.6;
    text-shadow: 0 0 40px rgba(245, 243, 238, 0.1);
}
.conclusion-gap { height: 32px; }

.final-epitaph {
    margin-top: 40px;
    padding: 32px 16px;
    border-top: 1px solid var(--gold-dim);
    border-bottom: 1px solid var(--gold-dim);
    background: rgba(212, 165, 116, 0.05);
}
.final-epitaph p {
    font-family: var(--serif);
    color: var(--text);
    font-size: 1.1rem;
    line-height: 2;
}
.final-epitaph p:first-child {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--gold-dim);
    letter-spacing: 0.15em;
}
.epitaph-quote { font-style: italic; color: var(--text); }

.exhibit-end { text-align: center; margin-top: 64px; opacity: 0; transition: opacity 1.5s ease; }
.exhibit-end.visible { opacity: 1; }
.exhibit-end a { text-decoration: none; }

/* Site Footer */
.site-footer {
    display: block;
    margin-top: 60px;
    padding: 24px 0;
    border-top: 1px solid rgba(212, 165, 116, 0.08);
    text-align: center;
    width: 100%;
}
.site-footer .copyright { color: var(--text-dim); font-size: 0.8rem; font-family: var(--sans); }
.site-footer .copyright a { color: var(--gold-dim); text-decoration: none; transition: color 0.3s; }
.site-footer .copyright a:hover { color: var(--gold); }

/* Utilities */
.hidden { display: none !important; }

/* Responsive */
@media (max-width: 600px) {
    .gallery { padding: 100px 16px 60px; }
    .input-row { flex-direction: column; align-items: center; }
    table.diagonal-table td { width: 28px; height: 28px; font-size: 0.9rem; }
    .increment-card { width: 44px; height: 44px; }
    .increment-card-front, .increment-card-back { font-size: 1.1rem; }
    .conclusion-line.big { font-size: 1.3rem; }
    .pair-zone { gap: 12px; }
    .pair-col { min-width: 140px; }
    /* Collision: stack vertically on mobile */
    .collision-zone { flex-direction: column; align-items: center; }
    .collision-card { max-width: 100%; width: 100%; }
    .collision-vs { padding: 4px 0; }
    /* Counter row: center on mobile */
    .counter-row { justify-content: center; gap: 12px; flex-wrap: wrap; }
    /* Infinity comparison: stack vertically on mobile */
    .infinity-comparison { flex-direction: column; align-items: center; }
    .inf-card { max-width: 100%; width: 100%; }
    .inf-card-vs { padding: 4px 0; }
}