/* Singularity Map — Shared timeline, question, and theme styles */

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

:root {
    --bg: #08080f;
    --bg-surface: #0e0e18;
    --bg-card: #1a1a2c;
    --bg-card-hover: #22223a;
    --text: #e4e4f0;
    --text-secondary: #9898b0;
    --text-dim: #5c5c74;
    --accent: #00c8ff;
    --accent-glow: rgba(0, 200, 255, 0.1);
    --accent-2: #7c5cff;
    --border: #222238;
    --border-hover: #3a3a58;
    --radius: 12px;
    --radius-sm: 8px;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);

    --mood-utopian: #00e088;
    --mood-dystopian: #ff3366;
    --mood-mixed: #ffaa22;
    --mood-stagnant: #7888aa;
    --mood-chaotic: #aa44ff;
    --mood-catastrophic: #cc2244;

    --pill-active-text: #000;
    --shadow-card: rgba(0, 0, 0, 0.25);

    --bg-glow-1: var(--accent-glow);
    --bg-glow-2: rgba(124, 92, 255, 0.025);
}

[data-theme="light"] {
    --bg: #f6f6fb;
    --bg-surface: #eeeef6;
    --bg-card: #ffffff;
    --bg-card-hover: #f0f0f8;
    --text: #1a1a2e;
    --text-secondary: #4e4e6a;
    --text-dim: #8888a4;
    --accent: #0090cc;
    --accent-glow: rgba(0, 144, 204, 0.08);
    --accent-2: #6a48e0;
    --border: #d4d4e4;
    --border-hover: #b0b0c8;

    --mood-utopian: #00a060;
    --mood-dystopian: #d42050;
    --mood-mixed: #c88000;
    --mood-stagnant: #607088;
    --mood-chaotic: #8830cc;
    --mood-catastrophic: #b01830;

    --pill-active-text: #fff;
    --shadow-card: rgba(0, 0, 0, 0.08);

    --bg-glow-1: rgba(0, 144, 204, 0.04);
    --bg-glow-2: rgba(124, 92, 255, 0.0125);
}

html { scrollbar-gutter: stable; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse at 25% 50%, var(--bg-glow-1) 0%, transparent 60%),
        radial-gradient(ellipse at 75% 20%, var(--bg-glow-2) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

#app {
    position: relative;
    z-index: 1;
    max-width: 760px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}

/* ---- Timeline ---- */
.timeline { position: relative; padding-left: 2.5rem; display: flow-root; }
.tl-vline {
    position: absolute;
    left: 7px; top: 8px; bottom: 0.6rem; width: 2px;
    background: linear-gradient(to bottom, var(--accent), var(--accent-2));
    opacity: 0.3; border-radius: 1px;
}
.timeline-event { position: relative; padding-top: 1.4rem; }
.tl-dot {
    position: absolute;
    left: calc(-2.5rem + 3px); top: 0.55rem;
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
    border: 2px solid var(--bg); z-index: 1;
}
.tl-vline-seg {
    position: absolute;
    left: calc(-2.5rem + 7px);
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), var(--accent-2));
    opacity: 0.3;
    border-radius: 1px;
    pointer-events: none;
}
.tl-hline {
    position: absolute;
    left: -1.85rem; top: calc(0.55rem + 4px);
    right: 0; height: 1px;
    background: var(--border); opacity: 0.6;
    z-index: -1;
}
.timeline-top-row {
    display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.2rem;
}
.timeline:not(.timeline-light) .timeline-top-row,
.timeline:not(.timeline-light) ~ .question-zone .timeline-top-row {
    display: grid; grid-template-columns: 1fr auto;
    gap: 0 0.5rem; align-items: center; margin-bottom: 0.35rem;
}
.timeline:not(.timeline-light) .timeline-param-wrap,
.timeline:not(.timeline-light) ~ .question-zone .timeline-param-wrap {
    display: contents;
}
.timeline:not(.timeline-light) .timeline-param-dim,
.timeline:not(.timeline-light) ~ .question-zone .timeline-param-dim {
    width: auto; grid-row: 1; grid-column: 1;
}
.timeline:not(.timeline-light) .timeline-year {
    grid-row: 1; grid-column: 2;
}
.timeline:not(.timeline-light) .tl-undo,
.timeline:not(.timeline-light) ~ .question-zone .tl-undo {
    position: static; margin-left: 0.4rem;
}
.timeline:not(.timeline-light) .tl-pills {
    grid-row: 2; grid-column: 1 / -1; margin-top: 0.35rem;
}
.timeline-year {
    font-size: 0.8rem; font-weight: 700; color: var(--accent);
    letter-spacing: 0.04em; margin-left: auto; white-space: nowrap;
    transition: none;
}
.tl-undo {
    background: none; border: none; cursor: pointer;
    font-size: 0.85rem; font-weight: 700; color: var(--text-dim); opacity: 0.8;
    padding: 0; border-radius: 4px;
    transition: opacity 0.15s var(--ease), color 0.15s var(--ease);
    position: absolute; left: -1.1rem; top: 0.6rem;
}
@media (max-width: 580px) {
    .tl-undo { font-size: 1.15rem; top: 0.2rem; }
    .timeline-light .timeline-top-row {
        display: grid; grid-template-columns: 1fr auto;
        gap: 0 0.5rem; align-items: center;
    }
    .timeline-light .timeline-param-wrap { display: contents; }
    .timeline-light .timeline-param-dim { width: auto; grid-row: 1; grid-column: 1; }
    .timeline-light .timeline-year { grid-row: 1; grid-column: 2; }
    .timeline-light .tl-undo, .timeline-light ~ .question-zone .tl-undo { position: static; margin-left: 0.4rem; }
    .timeline-light .tl-pills { grid-row: 2; grid-column: 1 / -1; margin-top: 0.35rem; }
}
.tl-undo-spacer { visibility: hidden; pointer-events: none; }
.tl-undo:hover { opacity: 1; color: var(--accent); }
.timeline-headline { font-weight: 500; margin-bottom: 0.2rem; font-size: 0.82rem; }
.timeline-desc { color: var(--text-secondary); font-size: 0.88rem; line-height: 1.6; }

/* ---- Markdown content in body-text fields ---- */
.question-context > :first-child,
.answer-card .desc > :first-child,
.timeline-desc > :first-child { margin-top: 0; }
.question-context > :last-child,
.answer-card .desc > :last-child,
.timeline-desc > :last-child { margin-bottom: 0; }
.question-context p,
.answer-card .desc p,
.timeline-desc p { margin: 0.6em 0; }
.question-context strong,
.answer-card .desc strong,
.timeline-desc strong { font-weight: 600; color: var(--text); }
.question-context em,
.answer-card .desc em,
.timeline-desc em { font-style: italic; }
.question-context ul, .question-context ol,
.answer-card .desc ul, .answer-card .desc ol,
.timeline-desc ul, .timeline-desc ol { margin: 0.5em 0; padding-left: 1.4em; }
.question-context li,
.answer-card .desc li,
.timeline-desc li { margin: 0.2em 0; }
.question-context blockquote,
.answer-card .desc blockquote,
.timeline-desc blockquote {
    margin: 0.5em 0; padding: 0.3em 0.8em;
    border-left: 2px solid var(--accent); opacity: 0.85;
}
.question-context a,
.answer-card .desc a,
.timeline-desc a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.timeline-param-wrap {
    display: flex; align-items: flex-start; gap: 0.75rem;
}
.timeline-param {
    font-size: 0.7rem; font-weight: 500; padding: 0.15rem 0.5rem;
    border-radius: 12px; border: 1px solid var(--accent);
    color: var(--accent);
}
.timeline-param-dim {
    flex-shrink: 0; width: 110px; font-size: 0.82rem; font-weight: 500;
    color: var(--text-secondary); padding-top: 0.3rem;
    position: relative;
}

/* ---- Pills ---- */
.tl-pills { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.tl-pill {
    font-size: 0.78rem; font-weight: 500; padding: 0.28rem 0.7rem;
    border-radius: 20px; border: 1px solid var(--border); background: var(--bg-card);
    color: var(--text-secondary); cursor: pointer; transition: all 0.15s var(--ease);
    user-select: none; white-space: nowrap;
}
.timeline-event .tl-pill {
    background: color-mix(in srgb, var(--bg-card) 50%, transparent); border-color: var(--border);
    color: var(--text-secondary);
}
.timeline-event .tl-pill.active {
    background: rgba(0, 200, 255, 0.12); border-color: var(--accent);
    color: var(--accent); font-weight: 600; cursor: pointer;
}
.timeline-event .tl-pill.active:hover {
    border-color: var(--accent); color: var(--accent);
    background: rgba(0, 200, 255, 0.18);
}
.tl-pill:hover:not(.active):not(.locked):not(.disabled) { border-color: var(--border-hover); color: var(--text); }
.timeline-event .tl-pill:hover:not(.active):not(.locked):not(.disabled) { border-color: var(--border-hover); color: var(--text-secondary); }
.tl-pill.active {
    background: rgba(0, 200, 255, 0.25); color: var(--accent);
    border-color: var(--accent); font-weight: 600; cursor: default;
}
.tl-pill.locked {
    background: var(--bg-card); color: var(--text-dim); border-color: var(--border);
    border-style: dashed; cursor: default; font-style: italic;
}
.timeline-event .tl-pill.locked {
    background: transparent;
}
.tl-pill.locked.active {
    background: var(--accent-glow); color: var(--accent); border-color: var(--accent); border-style: dashed;
}
.timeline-event .tl-pill.locked.active {
    background: transparent;
}
.tl-pill.disabled { opacity: 0.3; cursor: not-allowed; }
.flip-animating .tl-pill,
.flip-animating .answer-card { transition: none !important; }
.flip-animating .timeline-event,
.flip-animating .question-card {
    position: relative; z-index: 2;
    will-change: transform, opacity;
    contain: layout style;
}
.flip-animating .timeline-stage-header {
    will-change: transform, opacity;
}
@keyframes fade-in-cover {
    0% { opacity: 0; }
    45% { opacity: 1; }
    100% { opacity: 1; }
}
.flip-animating .timeline-event::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--bg);
    pointer-events: none;
    z-index: -1;
    animation: fade-in-cover var(--flip-duration, 1500ms) linear both;
}
.flip-animating .timeline-event::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: -40px; height: 40px;
    background: linear-gradient(to bottom, var(--bg), transparent);
    pointer-events: none;
    animation: fade-in-cover var(--flip-duration, 1500ms) linear both;
}
.tl-pill.pending { opacity: 0.25; cursor: default; font-style: italic; border-style: dotted; }

/* ---- Stage headers ---- */
.timeline-stage-header {
    display: flex; align-items: center; gap: 0.65rem;
    background: transparent;
    border: none;
    padding: 0.5rem 0.6rem;
    margin: 1.2rem 0 0.6rem;
    margin-left: calc(-2.5rem - 4px - 0.6rem);
    position: relative;
    z-index: 2;
}
.timeline > .timeline-stage-header:first-child { margin-top: 0; }
.timeline-stage-header .tl-stage-bg {
    position: absolute;
    top: 0; bottom: 0;
    left: calc(4px + 0.6rem + 6px);
    width: 4px; z-index: -1;
    background:
        radial-gradient(ellipse at 25% 50%, var(--bg-glow-1) 0%, transparent 60%),
        radial-gradient(ellipse at 75% 20%, var(--bg-glow-2) 0%, transparent 60%),
        var(--bg);
}
.timeline-stage-label {
    font-weight: 600; font-size: 0.88rem; color: var(--text);
}

/* ---- Timeline light (compact) mode ---- */
.timeline-light .tl-hline { display: none; }
.timeline-light .timeline-headline,
.timeline-light .timeline-desc,
.timeline-light .timeline-slider { display: none; }
.hide-sliders .timeline-slider { display: none; }
.timeline-light .timeline-event { margin-bottom: 0.65rem; padding-top: 0; }
.timeline-light .tl-dot { top: calc(0.67rem); }

/* ---- Timeline sliders ---- */
.timeline-slider {
    display: flex; align-items: center; gap: 0.6rem;
    margin-top: 0.5rem; padding: 0.3rem 0;
}
.timeline-slider input[type="range"] {
    -webkit-appearance: none; appearance: none;
    height: 4px; border-radius: 2px;
    background: var(--border);
    outline: none; cursor: pointer;
}
.timeline-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none; appearance: none;
    width: 4px; height: 18px; border-radius: 2px;
    background: var(--accent);
    box-shadow: 0 0 6px var(--accent-glow);
    cursor: ew-resize;
}
.timeline-slider input[type="range"]::-moz-range-thumb {
    width: 4px; height: 18px; border-radius: 2px; border: none;
    background: var(--accent);
    box-shadow: 0 0 6px var(--accent-glow);
    cursor: ew-resize;
}
.timeline-slider-label {
    font-size: 0.75rem; color: var(--text-dim);
    white-space: nowrap; min-width: 5rem; text-align: right;
}

/* ---- Question zone ---- */
.question-zone {
    padding-left: 2.5rem;
    position: relative;
}
.qz-vline {
    position: absolute;
    left: 7px; top: -0.6rem;
    height: calc(0.55rem + 7px + 0.6rem);
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), var(--accent-2));
    opacity: 0.3; border-radius: 1px;
    transition: opacity 0.3s ease;
}

/* ---- Question card ---- */
.question-card {
    background: none; border: none;
    border-radius: 0; padding: 1.4rem 0 0.75rem;
    margin-bottom: 1.5rem;
    position: relative;
}
.question-card > .tl-dot {
    transition: opacity 0.3s ease;
}
.question-card > .tl-hline {
    transition: opacity 0.3s ease;
}
.question-card .question-text {
    font-size: 1.15rem; font-weight: 600; margin-bottom: 0.75rem; line-height: 1.4;
}
.question-card .question-context {
    font-size: 0.88rem; margin-bottom: 0.75rem;
    color: var(--text-secondary); line-height: 1.6;
}
.question-card .answers {
    display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.75rem; margin-bottom: 0.75rem;
}
.question-card .answer-card {
    flex: 1 1 auto; min-width: 140px;
}
.question-card.compact { padding: 1rem 0; }
.question-card.compact .question-text { font-size: 1rem; margin-bottom: 0.5rem; }
.question-card.compact .answers { gap: 0.4rem; }
.question-card.compact .answer-card { padding: 0.55rem 0.85rem; min-width: 100px; }
.question-card.compact .answer-card .disabled-badge {
    margin: 0.35rem -0.85rem -0.55rem; padding: 0.3rem 0.85rem 0.3rem 0.6rem;
}
/* ---- Question text (standalone, outside card) ---- */
.question-text {
    font-size: 1.45rem; font-weight: 600;
    margin-bottom: 1rem; line-height: 1.4;
}
.question-context {
    color: var(--text-secondary); margin-bottom: 0.75rem;
    font-size: 0.95rem; line-height: 1.75;
}

/* ---- Answer cards ---- */
.answers { display: flex; flex-direction: column; gap: 0.7rem; margin-bottom: 2.5rem; }
.answer-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 1.15rem 1.4rem;
    cursor: pointer; transition: all 0.2s var(--ease);
    color: var(--text); font-size: inherit;
}
.answer-card:hover {
    background: var(--bg-card-hover); border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}
.answer-card .label { font-weight: 600; font-size: 1.02rem; margin-bottom: 0.2rem; }
.answer-card .desc { color: var(--text-secondary); font-size: 0.88rem; line-height: 1.5; }
.answer-card .disabled-badge {
    font-size: 0.8rem; line-height: 1.4; color: var(--text-secondary);
    margin: 0.5rem -1.4rem -1.15rem;
    padding: 0.45rem 1.4rem;
    background: rgba(0, 200, 255, 0.06);
    border: 1px solid var(--border); border-top: none;
    border-radius: 0 0 calc(var(--radius) - 1px) calc(var(--radius) - 1px);
}
.answer-card.forced-selected {
    border-color: var(--accent); background: var(--bg-card-hover);
    box-shadow: 0 0 20px var(--accent-glow);
    cursor: pointer;
}
.answer-card.forced-selected:hover {
    border-color: var(--accent); background: var(--bg-card-hover);
}
.answer-card.computing {
    position: relative;
    pointer-events: none;
}
.compute-bar {
    position: absolute;
    top: 0; left: 0; bottom: 0;
    width: 100%;
    background: var(--accent);
    opacity: 0.12;
    border-radius: var(--radius);
    transform-origin: left;
    will-change: transform;
}
.question-card .answer-card.disabled {
    pointer-events: none;
}
.question-card .answer-card.disabled > .label,
.question-card .answer-card.disabled > .desc {
    opacity: 0.5;
}
@media (max-width: 580px) {
    .answer-card { padding: 0.75rem 1.2rem; }
    .answer-card .disabled-badge {
        margin: 0.4rem -1.2rem -0.75rem;
        padding: 0.35rem 1.2rem;
    }
    .tl-vline, .tl-vline-seg, .qz-vline { display: none; }
    #app { padding: 2rem 1rem 4rem; }
    .timeline, .question-zone, .map-outcomes-zone { padding-left: 0; }
    .tl-dot { left: calc(-1rem + 3px); }
    .tl-hline { left: -0.5rem; }
    .timeline-stage-header { margin-left: 0; }
}
.forced-continue {
    margin-top: 0.25rem; margin-bottom: 0.5rem;
}