/* ═══════════════════════════════════════════════════════════════════
   Chinese Quest — /games/quest
   An academic palette: navy and royal blue, a deep gold for what has been
   earned, crimson for the Nemesis, emerald for a right answer. Serif
   display type on the moments that matter (stage cleared, the trophy),
   system sans everywhere else. Adult and calm by default; the colour and
   motion are saved for the wins.
   ═══════════════════════════════════════════════════════════════════ */

:root {
    --qs-ink: #0b1b3f;
    --qs-navy: #13306b;
    --qs-royal: #1f4fbf;
    --qs-sky: #5fb3f9;
    --qs-gold: #c99a2e;
    --qs-gold-light: #f3d27a;
    --qs-crimson: #a3123a;
    --qs-emerald: #0f8a5f;
    --qs-paper: #f6f7fb;
    --qs-surface: #ffffff;
    --qs-line: #d8dde8;
    --qs-muted: #5b6577;
    --qs-locked: #e6e9f0;
    --qs-locked-depth: #c3c9d5;
    --qs-locked-icon: #8f98aa;
    --qs-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
}

[data-bs-theme="dark"] {
    --qs-ink: #e6ebf7;
    --qs-paper: #121a2c;
    --qs-surface: #1a2338;
    --qs-line: #2c3754;
    --qs-muted: #a6afc2;
    --qs-locked: #2a3247;
    --qs-locked-depth: #1b2133;
    --qs-locked-icon: #6c7590;
}

.qs-accent { color: var(--qs-royal); }

/* ── Hero ────────────────────────────────────────────────────────── */
.qs-hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 85% 20%, rgba(243, 210, 122, 0.22), transparent 40%),
        linear-gradient(135deg, #0b1b3f 0%, #13306b 55%, #1f4fbf 100%);
    border-radius: 0.75rem;
}

.qs-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
    background-size: 18px 18px;
    pointer-events: none;
}

.qs-hero > .row { position: relative; z-index: 1; }

.qs-hero h1 {
    font-family: var(--qs-serif);
    letter-spacing: 0.01em;
}

.qs-eyebrow-light {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--qs-gold-light);
}

.qs-hero-path {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
}

.qs-hero-dot {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.16);
    box-shadow: 0 3px 0 rgba(0, 0, 0, 0.25);
}

.qs-hero-dot:nth-child(2) { transform: translateX(-26px); }
.qs-hero-dot:nth-child(3) { transform: translateX(-40px); }
.qs-hero-dot:nth-child(4) { transform: translateX(-10px); }
.qs-hero-dot:nth-child(5) { transform: translateX(24px); }
.qs-hero-dot:nth-child(6) { transform: translateX(8px); }
.qs-hero-dot.is-done { background: #2f62d6; }
.qs-hero-dot.is-chest { background: linear-gradient(135deg, #c98a3a, #f3d27a); }
.qs-hero-dot.is-current { background: #5fb3f9; box-shadow: 0 0 0 4px rgba(95, 179, 249, 0.35), 0 3px 0 rgba(0, 0, 0, 0.25); }
.qs-hero-dot.is-nemesis { background: linear-gradient(135deg, #e11d48, #6d0f2a); }
.qs-hero-dot.is-trophy { background: linear-gradient(135deg, #fbe7a1, #c99a2e); }

/* ── Card, level picker and switches ──────────────────────────────── */
.qs-topbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.qs-picker {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.qs-pick-btn {
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.05rem;
    min-width: 6.4rem;
    padding: 0.35rem 0.7rem;
    border: 1px solid var(--qs-line);
    border-radius: 0.55rem;
    background: var(--qs-surface);
    color: var(--qs-ink);
    line-height: 1.15;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    transition: border-color 0.15s, background 0.15s, transform 0.15s;
}

.qs-pick-label { font-weight: 700; font-size: 0.86rem; }
.qs-pick-levels { font-size: 0.7rem; color: var(--qs-muted); }

@media (hover: hover) {
    .qs-pick-btn:hover { border-color: var(--qs-royal); }
}

.qs-pick-btn:active { transform: scale(0.97); }

.qs-pick-btn.active,
.qs-pick-btn[aria-pressed="true"] {
    background: linear-gradient(135deg, var(--qs-navy), var(--qs-royal));
    border-color: var(--qs-navy);
    color: #fff;
}

.qs-pick-btn.active .qs-pick-levels,
.qs-pick-btn[aria-pressed="true"] .qs-pick-levels { color: rgba(255, 255, 255, 0.8); }

.qs-pick-btn.qs-picked { animation: qs-pop 0.3s ease; }

.qs-switches { display: flex; gap: 0.35rem; }

/* A phone: the four levels as a 2 x 2 grid with the two switches stacked beside them, so the
   picker never wraps three-and-one and the board starts a row higher. */
@media (max-width: 575.98px) {
    .qs-topbar { flex-wrap: nowrap; align-items: stretch; }
    .qs-picker { flex: 1; display: grid; grid-template-columns: 1fr 1fr; }
    .qs-pick-btn { min-width: 0; }
    .qs-switches { flex-direction: column; }
}

.qs-switch {
    min-width: 2.4rem;
    border: 1px solid var(--qs-line);
    background: var(--qs-surface);
    color: var(--qs-ink);
}

.qs-switch[aria-pressed="true"] { border-color: var(--qs-royal); color: var(--qs-royal); }
.qs-switch:disabled { opacity: 0.5; }

/* ── The stage (the play surface; clips every effect) ─────────────── */
.qs-stage {
    position: relative;
    overflow: hidden;
    min-height: 560px;
    border-radius: 0.9rem;
    border: 1px solid var(--qs-line);
    background-color: var(--qs-paper);
    background-image: radial-gradient(rgba(19, 48, 107, 0.07) 1px, transparent 1px);
    background-size: 18px 18px;
    padding: 1rem;
}

.qs-stage.qs-is-nemesis {
    background-image:
        radial-gradient(circle at 50% 0%, rgba(163, 18, 58, 0.08), transparent 55%),
        radial-gradient(rgba(19, 48, 107, 0.07) 1px, transparent 1px);
    background-size: auto, 18px 18px;
}

.qs-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    min-height: 520px;
    color: var(--qs-muted);
    text-align: center;
    padding: 1rem;
}

.qs-spinner {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 3px solid var(--qs-line);
    border-top-color: var(--qs-royal);
    animation: qs-spin 0.9s linear infinite;
}

@keyframes qs-spin { to { transform: rotate(360deg); } }

.qs-eyebrow {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--qs-muted);
}

.qs-link-btn {
    border: 0;
    background: none;
    padding: 0;
    color: var(--qs-royal);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* ── The map ─────────────────────────────────────────────────────── */
.qs-map-head {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 0.75rem;
    text-align: center;
    margin-bottom: 0.5rem;
}

.qs-map-heading {
    font-family: var(--qs-serif);
    color: var(--qs-ink);
}

.qs-map-meta {
    font-size: 0.82rem;
    color: var(--qs-muted);
    margin-top: 0.15rem;
}

.qs-meta-won { color: var(--qs-gold); font-weight: 700; }

.qs-nav-btn {
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 50%;
    border: 1px solid var(--qs-line);
    background: var(--qs-surface);
    color: var(--qs-navy);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.qs-nav-btn:disabled { opacity: 0.35; }
.qs-quest-nav {
    width: auto;
    height: auto;
    min-height: 2.75rem;
    gap: 0.5rem;
    padding: 0.5rem 0.65rem;
    border-radius: 0.55rem;
    font-size: 0.8rem;
    line-height: 1.25;
}

@media (max-width: 767.98px) {
    .qs-map-head { grid-template-columns: 1fr 1fr; gap: 0.5rem; }
    .qs-map-title { grid-column: 1 / -1; grid-row: 1; }
}
.qs-nav-btn:active:not(:disabled) { transform: scale(0.94); }

@media (hover: hover) {
    .qs-nav-btn:hover:not(:disabled) { border-color: var(--qs-royal); }
}

.qs-map-body {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 1200px) {
    .qs-map-body { grid-template-columns: minmax(0, 1fr) 280px; align-items: start; }
}

.qs-path-wrap { position: relative; }

.qs-path-lines {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: visible;
}

.qs-line {
    fill: none;
    stroke: var(--qs-line);
    stroke-width: 4;
    stroke-linecap: round;
    stroke-dasharray: 2 10;
}

.qs-line.is-walked {
    stroke: var(--qs-gold);
    stroke-dasharray: none;
}

.qs-line.is-fresh {
    stroke-dasharray: 600;
    stroke-dashoffset: 600;
    animation: qs-draw 0.7s ease forwards;
}

@keyframes qs-draw { to { stroke-dashoffset: 0; } }

.qs-path {
    position: relative;
    list-style: none;
    margin: 0;
    padding: 0.5rem 0 0.75rem;
}

.qs-path.qs-path-in { animation: qs-deal-in 0.35s ease backwards; }

.qs-node-row {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.35rem 0 0.4rem;
    transform: translateX(var(--qs-x, 0));
}

/* The zig-zag, from the reference: right, centre, left, centre, right, centre. */
.qs-pos-0 { --qs-x: 34%; }
.qs-pos-1 { --qs-x: 4%; }
.qs-pos-2 { --qs-x: -30%; }
.qs-pos-3 { --qs-x: -6%; }
.qs-pos-4 { --qs-x: 26%; }
.qs-pos-5 { --qs-x: 0%; }

@media (max-width: 575.98px) {
    .qs-pos-0 { --qs-x: 22%; }
    .qs-pos-1 { --qs-x: 2%; }
    .qs-pos-2 { --qs-x: -22%; }
    .qs-pos-3 { --qs-x: -4%; }
    .qs-pos-4 { --qs-x: 18%; }
}

.qs-node {
    position: relative;
    width: 84px;
    height: 78px;
    border: 0;
    border-radius: 50%;
    padding: 0;
    background: var(--qs-locked);
    color: var(--qs-locked-icon);
    box-shadow: 0 7px 0 var(--qs-locked-depth), 0 12px 18px rgba(11, 27, 63, 0.12);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.qs-node-face {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.qs-node-face svg { width: 34px; height: 34px; }

@media (hover: hover) {
    .qs-node:not(.is-locked):hover { transform: translateY(-2px); }
}

.qs-node:active:not(.is-locked) {
    transform: translateY(5px);
    box-shadow: 0 2px 0 var(--qs-locked-depth), 0 4px 8px rgba(11, 27, 63, 0.12);
}

/* Done: navy coin. Current: royal coin with a gold ring. */
.qs-node.is-done,
.qs-node.is-current {
    color: #fff;
    background: linear-gradient(160deg, #2f62d6 0%, #13306b 100%);
    box-shadow: 0 7px 0 #0b1b3f, 0 12px 20px rgba(11, 27, 63, 0.28);
}

.qs-node.is-current {
    background: linear-gradient(160deg, #5fb3f9 0%, #1f4fbf 60%, #13306b 100%);
    animation: qs-float 2.6s ease-in-out infinite;
}

.qs-node.qs-node-bonus.is-done,
.qs-node.qs-node-bonus.is-current {
    background: linear-gradient(160deg, #f3d27a 0%, #c98a3a 70%, #8a5422 100%);
    box-shadow: 0 7px 0 #5b3615, 0 12px 20px rgba(91, 54, 21, 0.3);
}

.qs-node.qs-node-nemesis.is-done,
.qs-node.qs-node-nemesis.is-current {
    background: linear-gradient(160deg, #f43f5e 0%, #a3123a 60%, #5c0a22 100%);
    box-shadow: 0 7px 0 #3f0718, 0 12px 20px rgba(92, 10, 34, 0.32);
}

.qs-node.qs-node-prize.is-done,
.qs-node.qs-node-prize.is-current {
    color: #5b3a06;
    background: linear-gradient(160deg, #fff1bf 0%, #f3d27a 40%, #c99a2e 100%);
    box-shadow: 0 7px 0 #8a5d0c, 0 12px 22px rgba(201, 154, 46, 0.45);
}

.qs-node-ring {
    position: absolute;
    inset: -9px;
    border-radius: 50%;
    border: 3px solid transparent;
    background: conic-gradient(from 0deg, var(--qs-gold-light), var(--qs-gold), transparent 70%) border-box;
    -webkit-mask: linear-gradient(#000 0 0) padding-box exclude, linear-gradient(#000 0 0);
    mask: linear-gradient(#000 0 0) padding-box exclude, linear-gradient(#000 0 0);
    animation: qs-ring 2.4s linear infinite;
    pointer-events: none;
}

@keyframes qs-ring { to { transform: rotate(360deg); } }

.qs-node-badge {
    position: absolute;
    right: -2px;
    bottom: -4px;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--qs-gold);
    color: #fff;
    border: 2px solid var(--qs-surface);
    box-shadow: 0 2px 6px rgba(11, 27, 63, 0.25);
}

.qs-node-badge svg { width: 15px; height: 15px; stroke-width: 3; }

.qs-node-badge-lock {
    background: var(--qs-locked-icon);
}

.qs-node-badge-lock svg { stroke-width: 2.2; }

.qs-node.qs-unlocking { animation: qs-unlock 0.8s cubic-bezier(0.2, 0.9, 0.3, 1.4) 0.35s backwards; }

@keyframes qs-unlock {
    0% { transform: scale(0.6); filter: grayscale(1); }
    60% { transform: scale(1.12); }
    100% { transform: scale(1); filter: none; }
}

@keyframes qs-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.qs-bubble {
    position: absolute;
    top: -0.55rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.2rem 0.75rem;
    border-radius: 0.55rem;
    background: var(--qs-surface);
    border: 2px solid var(--qs-royal);
    color: var(--qs-royal);
    font-weight: 800;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    white-space: nowrap;
    pointer-events: none;
    box-shadow: 0 4px 10px rgba(11, 27, 63, 0.12);
    animation: qs-bob 1.8s ease-in-out infinite;
    z-index: 2;
}

.qs-bubble::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -7px;
    width: 10px;
    height: 10px;
    background: var(--qs-surface);
    border-right: 2px solid var(--qs-royal);
    border-bottom: 2px solid var(--qs-royal);
    transform: translateX(-50%) rotate(45deg);
}

.qs-bubble-won { border-color: var(--qs-gold); color: var(--qs-gold); }
.qs-bubble-won::after { border-color: var(--qs-gold); }

@keyframes qs-bob {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, -4px); }
}

.qs-node-label {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 0.85rem;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--qs-ink);
    white-space: nowrap;
}

.qs-node-num {
    font-family: var(--qs-serif);
    font-weight: 700;
    color: var(--qs-muted);
}

.qs-node-stars { display: inline-flex; gap: 1px; }

.qs-star {
    display: inline-flex;
    width: 0.95em;
    height: 0.95em;
    color: var(--qs-line);
    vertical-align: -0.12em;
}

.qs-star svg { width: 100%; height: 100%; }
.qs-star.on { color: var(--qs-gold); }

/* ── Word list ───────────────────────────────────────────────────── */
.qs-words {
    background: var(--qs-surface);
    border: 1px solid var(--qs-line);
    border-radius: 0.75rem;
    padding: 0.6rem 0.75rem;
}

.qs-words summary {
    font-weight: 700;
    color: var(--qs-navy);
    cursor: pointer;
}

[data-bs-theme="dark"] .qs-words summary { color: #9cc3ff; }

.qs-words-note {
    font-size: 0.78rem;
    color: var(--qs-muted);
    margin: 0.35rem 0 0.4rem;
}

.qs-word-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.qs-word {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.45rem 0;
    border-top: 1px solid var(--qs-line);
}

.qs-word-picture {
    flex: none;
    width: 36px;
    height: 36px;
    border-radius: 0.5rem;
    background: #fff;
    border: 1px solid var(--qs-line);
    object-fit: contain;
}

.qs-word:first-child { border-top: 0; }

.qs-word-hanzi {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--qs-ink);
    text-decoration: none;
    min-width: 2.4em;
}

a.qs-word-hanzi:hover { color: var(--qs-royal); text-decoration: underline; }

.qs-word-text { display: flex; flex-direction: column; flex: 1; min-width: 0; line-height: 1.25; }
.qs-word-pinyin { font-size: 0.82rem; font-weight: 600; color: var(--qs-royal); }
.qs-word-gloss { font-size: 0.8rem; color: var(--qs-muted); overflow-wrap: anywhere; }
.qs-word-tools { display: inline-flex; align-items: center; gap: 0.25rem; }

.qs-word-flag {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--qs-crimson);
}

.qs-word.is-missed { background: linear-gradient(90deg, rgba(163, 18, 58, 0.06), transparent); }

.qs-speak {
    width: 1.9rem;
    height: 1.9rem;
    border-radius: 50%;
    border: 1px solid var(--qs-line);
    background: var(--qs-surface);
    color: var(--qs-royal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    vertical-align: middle;
}

.qs-speak.is-playing { background: var(--qs-royal); color: #fff; }

/* ── HUD ─────────────────────────────────────────────────────────── */
.qs-hud {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto auto auto;
    align-items: center;
    gap: 0.5rem 0.9rem;
    margin-bottom: 0.5rem;
}

.qs-hud-stage { min-width: 0; }

.qs-hud-stage .qs-eyebrow { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

@media (max-width: 400px) {
    .qs-hud { gap: 0.4rem 0.55rem; }
    .qs-hud #qsHearts small, .qs-hud-item:last-child small { display: none; }
}

.qs-hud-name {
    font-family: var(--qs-serif);
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--qs-ink);
}

.qs-hud-item {
    font-weight: 700;
    font-size: 1.05rem;
    line-height: 1.2;
    white-space: nowrap;
    color: var(--qs-ink);
}

.qs-hud-item small {
    display: block;
    font-weight: 400;
    font-size: 0.7rem;
    color: var(--qs-muted);
}

.qs-hud-bonus { color: var(--qs-gold); }

.qs-heart { color: #e11d48; font-size: 1.1rem; margin-right: 2px; }
.qs-heart.lost { color: var(--qs-locked-depth); }

.qs-combo-badge {
    display: inline-block;
    min-width: 2.4rem;
    padding: 0.05rem 0.45rem;
    border-radius: 999px;
    background: var(--qs-navy);
    color: #fff;
    font-size: 0.95rem;
}

.qs-dots {
    display: flex;
    gap: 4px;
    margin-bottom: 0.6rem;
}

.qs-dot {
    flex: 1;
    height: 5px;
    border-radius: 999px;
    background: var(--qs-line);
    transition: background 0.3s;
}

.qs-dot.on { background: linear-gradient(90deg, var(--qs-gold), var(--qs-gold-light)); }

/* ── The Nemesis ─────────────────────────────────────────────────── */
.qs-nemesis {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    margin-bottom: 0.6rem;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, rgba(163, 18, 58, 0.1), rgba(163, 18, 58, 0.02));
    border: 1px solid rgba(163, 18, 58, 0.25);
}

.qs-nemesis-crest { width: 48px; height: 48px; flex: none; }
.qs-nemesis-crest svg { width: 100%; height: 100%; }
.qs-nemesis-info { flex: 1; }

.qs-nemesis-name {
    font-family: var(--qs-serif);
    font-weight: 700;
    color: var(--qs-crimson);
}

.qs-nemesis-name span { font-family: inherit; font-weight: 400; font-size: 0.8rem; color: var(--qs-muted); }

[data-bs-theme="dark"] .qs-nemesis-name { color: #fb7185; }

.qs-nemesis-bar {
    height: 10px;
    border-radius: 999px;
    background: rgba(163, 18, 58, 0.15);
    overflow: hidden;
    margin-top: 0.3rem;
}

.qs-nemesis-fill {
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, #f43f5e, #a3123a);
    transition: width 0.45s cubic-bezier(0.3, 0.7, 0.3, 1);
}

.qs-crest-hit { animation: qs-crest-hit 0.4s ease; }
.qs-crest-crit { animation: qs-crest-crit 0.55s ease; }
.qs-crest-strike { animation: qs-crest-strike 0.5s ease; }
.qs-crest-defeat { animation: qs-crest-defeat 1s ease forwards; }

@keyframes qs-crest-hit {
    0%, 100% { transform: translateX(0); }
    30% { transform: translateX(6px) rotate(6deg); filter: brightness(1.6); }
    60% { transform: translateX(-3px); }
}

@keyframes qs-crest-crit {
    0%, 100% { transform: scale(1); }
    20% { transform: scale(0.85) rotate(-10deg); filter: brightness(2.2); }
    50% { transform: scale(1.1) rotate(8deg); }
}

@keyframes qs-crest-strike {
    0%, 100% { transform: scale(1); }
    40% { transform: scale(1.25); filter: drop-shadow(0 0 10px rgba(244, 63, 94, 0.9)); }
}

@keyframes qs-crest-defeat {
    0% { transform: scale(1); opacity: 1; }
    40% { transform: scale(1.3) rotate(-12deg); filter: brightness(2.5); }
    100% { transform: scale(0.2) rotate(40deg); opacity: 0; }
}

/* ── Timer ───────────────────────────────────────────────────────── */
.qs-timer {
    height: 6px;
    border-radius: 999px;
    background: var(--qs-line);
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.qs-timer.is-off { visibility: hidden; }

.qs-timer-fill {
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, var(--qs-royal), var(--qs-sky));
}

.qs-timer.is-urgent .qs-timer-fill {
    background: linear-gradient(90deg, #ea580c, #f59e0b);
    animation: qs-urgent 0.5s ease-in-out infinite alternate;
}

@keyframes qs-urgent { from { opacity: 1; } to { opacity: 0.55; } }

/* ── Prompt ──────────────────────────────────────────────────────── */
.qs-prompt {
    text-align: center;
    min-height: 8.5rem;
    padding: 0.85rem 0.75rem;
    margin-bottom: 0.85rem;
    border-radius: 0.85rem;
    background: var(--qs-surface);
    border: 1px solid var(--qs-line);
    box-shadow: 0 6px 18px rgba(11, 27, 63, 0.06);
}

.qs-prompt.qs-deal { animation: qs-deal-in 0.3s ease backwards; }
.qs-prompt.qs-shake { animation: qs-shake 0.4s ease; }   /* after .qs-deal so it wins */

.qs-q-kind {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--qs-muted);
    margin-bottom: 0.35rem;
}

.qs-q-hanzi {
    font-size: clamp(2.6rem, 11vw, 3.6rem);
    font-weight: 600;
    line-height: 1.1;
    color: var(--qs-ink);
}

.qs-q-pinyin { font-size: 1.1rem; font-weight: 600; color: var(--qs-royal); }
.qs-q-hint { font-size: 0.85rem; color: var(--qs-muted); margin-top: 0.2rem; }

.qs-q-gloss {
    font-family: var(--qs-serif);
    font-size: clamp(1.4rem, 5.5vw, 1.9rem);
    font-weight: 700;
    color: var(--qs-ink);
    line-height: 1.25;
}

.qs-q-chip {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 0.1rem 0.6rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: #fff;
    background: var(--qs-crimson);
}

.qs-sentence {
    font-size: clamp(1.35rem, 5.5vw, 1.75rem);
    line-height: 1.6;
    color: var(--qs-ink);
}

.qs-sentence-pinyin { margin-top: 0.35rem; line-height: 1.6; }

.qs-gap {
    display: inline-block;
    min-width: 2.2em;
    margin: 0 0.15em;
    border-bottom: 3px solid var(--qs-royal);
    color: var(--qs-royal);
}

.qs-clue-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: baseline;
    gap: 0.25rem 0.75rem;
    margin-top: 0.35rem;
    font-size: 0.92rem;
}

.qs-clue { color: var(--qs-muted); font-style: italic; }
.qs-clue.is-hidden { display: none; }
.qs-q-note { font-size: 0.72rem; color: var(--qs-muted); margin-top: 0.25rem; }

.qs-no-pinyin .qs-py { display: none !important; }

/* ── Options ─────────────────────────────────────────────────────── */
.qs-options {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.55rem;
}

@media (min-width: 576px) {
    .qs-options { grid-template-columns: 1fr 1fr; }
}

.qs-option {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 3.4rem;
    padding: 0.55rem 0.9rem 0.55rem 2.2rem;
    border: 2px solid var(--qs-line);
    border-radius: 0.75rem;
    background: var(--qs-surface);
    color: var(--qs-ink);
    font-weight: 600;
    line-height: 1.25;
    box-shadow: 0 3px 0 var(--qs-line);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    /* backwards, never both: a held end frame would out-rank :hover, :active and .faded. */
    animation: qs-deal-in 0.28s ease backwards;
    transition: border-color 0.12s, transform 0.12s, background 0.12s;
}

@media (hover: hover) {
    .qs-option:hover:not(:disabled) { border-color: var(--qs-royal); transform: translateY(-2px); }
}

.qs-option:active:not(:disabled) { transform: scale(0.97); background: rgba(31, 79, 191, 0.07); }

.qs-key {
    position: absolute;
    left: 0.65rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 0.3rem;
    border: 1px solid var(--qs-line);
    font-size: 0.7rem;
    line-height: 1.15rem;
    color: var(--qs-muted);
}

.qs-opt-pinyin { font-size: 1.2rem; letter-spacing: 0.02em; }

/* The Picture stage: Picture Quiz's board — 2 x 2 for four pictures, 3 x 2 for five or six. */
.qs-options.qs-options-pictures { grid-template-columns: 1fr 1fr; }
.qs-options.qs-options-pictures.qs-n-6 { grid-template-columns: repeat(3, 1fr); }

.qs-option.qs-option-picture {
    padding: 0.5rem 0.4rem 0.35rem;
    min-height: 0;
    justify-content: flex-start;
    gap: 0.25rem;
}

.qs-option-picture img {
    width: 100%;
    max-width: 120px;
    height: auto;
    aspect-ratio: 1;
    border-radius: 0.55rem;
    background: #fff;
    pointer-events: none;
    -webkit-user-drag: none;
}

.qs-option-picture .qs-key { top: 0.55rem; transform: none; left: 0.5rem; background: var(--qs-surface); }

.qs-pic-label {
    min-height: 1.1rem;
    font-size: 0.78rem;
    font-weight: 600;
    line-height: 1.2;
    text-align: center;
    color: var(--qs-muted);
}

.qs-pic-label [lang] { font-size: 0.95rem; color: var(--qs-ink); }

.qs-say {
    margin-top: 0.4rem;
    padding: 0.2rem 0.8rem;
    border-radius: 999px;
    border: 1px solid var(--qs-line);
    background: var(--qs-surface);
    color: var(--qs-royal);
    font-size: 0.82rem;
    font-weight: 600;
}

.qs-say.is-playing { background: var(--qs-royal); color: #fff; border-color: var(--qs-royal); }

[data-bs-theme="dark"] .qs-say { color: #8fbaff; }
.qs-opt-hanzi { font-size: 1.65rem; font-weight: 600; }
.qs-opt-sub { font-size: 0.8rem; color: var(--qs-royal); font-weight: 600; }

.qs-option.correct {
    border-color: var(--qs-emerald);
    background: rgba(15, 138, 95, 0.12);
    box-shadow: 0 3px 0 var(--qs-emerald);
    animation: qs-pop 0.35s ease;
}

.qs-option.wrong {
    border-color: #e11d48;
    background: rgba(225, 29, 72, 0.08);
    box-shadow: 0 3px 0 #e11d48;
    animation: qs-shake 0.35s ease;
}

.qs-option.faded { opacity: 0.5; }
.qs-option:disabled { cursor: default; }

/* ── Feedback ────────────────────────────────────────────────────── */
.qs-feedback { min-height: 3.2rem; margin-top: 0.75rem; text-align: center; }

.qs-fb {
    display: inline-block;
    max-width: 100%;
    padding: 0.5rem 0.85rem;
    border-radius: 0.75rem;
    font-size: 0.92rem;
}

.qs-fb-right { background: rgba(15, 138, 95, 0.1); color: var(--qs-ink); }
.qs-fb-right strong { color: var(--qs-emerald); margin-right: 0.25rem; }
.qs-fb-wrong { background: rgba(163, 18, 58, 0.07); color: var(--qs-ink); }
.qs-fb-answer { font-weight: 700; margin-top: 0.2rem; }
.qs-fb-picked { font-size: 0.82rem; color: var(--qs-muted); margin-top: 0.15rem; }
.qs-fb-hanzi { font-size: 1.15em; }
.qs-fb-pinyin { color: var(--qs-royal); }
.qs-fb-sentence { margin-top: 0.35rem; font-size: 1.05rem; }
.qs-fb-sentence-en { font-size: 0.8rem; color: var(--qs-muted); }
.qs-fb-victory strong { font-family: var(--qs-serif); font-size: 1.1rem; }

[data-bs-theme="dark"] .qs-fb-right strong { color: #34d399; }

/* ── Bonus: Match ────────────────────────────────────────────────── */
.qs-match-head {
    text-align: center;
    font-size: 0.85rem;
    color: var(--qs-muted);
    margin-bottom: 0.6rem;
}

.qs-match-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem;
}

.qs-match-col { display: flex; flex-direction: column; gap: 0.5rem; }

.qs-tile {
    min-height: 3.3rem;
    padding: 0.4rem 0.6rem;
    border: 2px solid var(--qs-line);
    border-radius: 0.7rem;
    background: var(--qs-surface);
    color: var(--qs-ink);
    box-shadow: 0 3px 0 var(--qs-line);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    animation: qs-deal-in 0.28s ease backwards;
    line-height: 1.2;
}

.qs-tile-hanzi { display: flex; flex-direction: column; align-items: center; font-size: 1.45rem; font-weight: 600; }
.qs-tile-sub { font-size: 0.72rem; color: var(--qs-royal); font-weight: 600; }
.qs-tile-gloss { font-size: 0.82rem; font-weight: 600; }

@media (hover: hover) {
    .qs-tile:hover:not(:disabled) { border-color: var(--qs-gold); }
}

.qs-tile:active:not(:disabled) { transform: scale(0.97); }

.qs-tile.is-selected {
    border-color: var(--qs-royal);
    background: rgba(31, 79, 191, 0.08);
    box-shadow: 0 3px 0 var(--qs-royal);
}

.qs-tile.is-matched {
    border-color: var(--qs-gold);
    background: linear-gradient(135deg, rgba(243, 210, 122, 0.35), rgba(201, 154, 46, 0.12));
    box-shadow: 0 3px 0 var(--qs-gold);
    opacity: 0.85;
    animation: qs-pop 0.35s ease;
}

.qs-tile.qs-shake { animation: qs-shake 0.35s ease; }

/* ── Overlays ────────────────────────────────────────────────────── */
.qs-overlay {
    position: absolute;
    inset: 0;
    z-index: 5;
    display: flex;
    flex-direction: column;
    align-items: center;
    /* Top, not centre: over the tall map a centred card puts its Start button below a phone's fold. */
    justify-content: flex-start;
    gap: 0.45rem;
    padding: 2rem 1.25rem 1.25rem;
    text-align: center;
    background: rgba(246, 247, 251, 0.94);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    overflow-y: auto;
    animation: qs-fade-in 0.25s ease;
}

.qs-overlay[hidden] { display: none; }

[data-bs-theme="dark"] .qs-overlay { background: rgba(18, 26, 44, 0.95); }

.qs-overlay h3 { font-family: var(--qs-serif); color: var(--qs-ink); }

/* The trophy is a page of its own inside the board, in the flow, so it is never cramped. */
.qs-overlay.qs-overlay-prize {
    position: relative;
    inset: auto;
    min-height: 520px;
    background: radial-gradient(circle at 50% 0%, rgba(243, 210, 122, 0.28), transparent 55%);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    overflow: visible;
    padding: 1rem 0.25rem;
}

[data-bs-theme="dark"] .qs-overlay.qs-overlay-prize {
    background: radial-gradient(circle at 50% 0%, rgba(201, 154, 46, 0.22), transparent 55%);
}

@keyframes qs-fade-in { from { opacity: 0; } to { opacity: 1; } }

.qs-intro-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    background: linear-gradient(160deg, #5fb3f9 0%, #1f4fbf 60%, #13306b 100%);
    box-shadow: 0 6px 0 #0b1b3f;
    margin-bottom: 0.35rem;
}

.qs-intro-icon.qs-node-nemesis { background: linear-gradient(160deg, #f43f5e 0%, #a3123a 60%, #5c0a22 100%); box-shadow: 0 6px 0 #3f0718; }
.qs-intro-icon.qs-node-bonus { background: linear-gradient(160deg, #f3d27a 0%, #c98a3a 70%, #8a5422 100%); box-shadow: 0 6px 0 #5b3615; }
.qs-intro-icon svg { width: 34px; height: 34px; }

.qs-intro-art { width: 112px; height: 104px; }
.qs-intro-art svg { width: 100%; height: 100%; }
.qs-intro-nemesis { width: 84px; height: 84px; animation: qs-float 2.6s ease-in-out infinite; }

.qs-rules {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 999px;
    border: 1px solid var(--qs-line);
    background: var(--qs-surface);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--qs-navy);
    margin-bottom: 0.4rem;
}

[data-bs-theme="dark"] .qs-rules { color: #9cc3ff; }

.qs-btn-primary {
    color: #fff;
    border: 0;
    background: linear-gradient(135deg, var(--qs-navy), var(--qs-royal));
    box-shadow: 0 4px 0 var(--qs-ink);
}

.qs-btn-primary:hover, .qs-btn-primary:focus { color: #fff; filter: brightness(1.08); }
.qs-btn-primary:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--qs-ink); }

[data-bs-theme="dark"] .qs-btn-primary { box-shadow: 0 4px 0 #050b1a; }

.qs-btn-gold {
    color: #3d2703;
    border: 0;
    font-weight: 700;
    background: linear-gradient(135deg, #fff1bf, #f3d27a 45%, #c99a2e);
    box-shadow: 0 4px 0 #8a5d0c;
}

.qs-btn-gold:hover, .qs-btn-gold:focus { color: #3d2703; filter: brightness(1.05); }
.qs-btn-gold:active { transform: translateY(3px); box-shadow: 0 1px 0 #8a5d0c; }

.qs-clear-stars { display: flex; gap: 0.3rem; font-size: 2.6rem; }
.qs-clear-stars-sm { font-size: 1.6rem; }
.qs-clear-stars.qs-stars-in .qs-star.on { animation: qs-star-in 0.5s cubic-bezier(0.2, 0.9, 0.3, 1.5) backwards; }
.qs-clear-stars.qs-stars-in .qs-star:nth-child(2) { animation-delay: 0.15s; }
.qs-clear-stars.qs-stars-in .qs-star:nth-child(3) { animation-delay: 0.3s; }

@keyframes qs-star-in {
    0% { transform: scale(0) rotate(-40deg); }
    100% { transform: scale(1) rotate(0); }
}

.qs-clear-points {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--qs-navy);
}

[data-bs-theme="dark"] .qs-clear-points { color: #9cc3ff; }

.qs-clear-bonus {
    display: inline-block;
    padding: 0.15rem 0.7rem;
    border-radius: 999px;
    background: linear-gradient(135deg, #fff1bf, #f3d27a);
    color: #5b3a06;
    font-weight: 700;
    font-size: 0.85rem;
}

/* Chest */
.qs-chest-wrap { width: 130px; height: 118px; }
/* The lid hinges on its own back-left corner. */
.qs-art-chest .qs-chest-lid {
    transform-box: fill-box;
    transform-origin: 0% 100%;
    transition: transform 0.6s cubic-bezier(0.3, 1.4, 0.4, 1);
}
.qs-art-chest .qs-chest-glow { opacity: 0; transition: opacity 0.6s ease 0.25s; }
.qs-art-chest.is-open .qs-chest-lid { transform: rotate(-20deg); }
.qs-art-chest.is-open .qs-chest-glow { opacity: 1; }

/* Trophy */
.qs-prize-art { width: 140px; height: 140px; }
.qs-prize-art svg { width: 100%; height: 100%; overflow: visible; }
.qs-art-trophy.qs-trophy-in { animation: qs-trophy-in 0.9s cubic-bezier(0.2, 0.9, 0.3, 1.3) backwards; }
.qs-art-trophy .qs-shine { animation: qs-shine 2.8s ease-in-out 0.9s infinite; }

@keyframes qs-trophy-in {
    0% { transform: translateY(40px) scale(0.4); opacity: 0; }
    70% { transform: translateY(-6px) scale(1.06); opacity: 1; }
    100% { transform: none; }
}

@keyframes qs-shine {
    0% { transform: translateX(-10px) skewX(-18deg); opacity: 0; }
    20% { opacity: 0.45; }
    45% { transform: translateX(46px) skewX(-18deg); opacity: 0; }
    100% { transform: translateX(46px) skewX(-18deg); opacity: 0; }
}

.qs-prize-title {
    font-family: var(--qs-serif);
    font-size: clamp(2rem, 7vw, 2.6rem);
    font-weight: 700;
    color: var(--qs-ink);
    margin: 0;
}

.qs-prize-score {
    font-size: clamp(2.2rem, 9vw, 3rem);
    font-weight: 800;
    color: var(--qs-gold);
    line-height: 1.1;
}

.qs-new-best {
    display: inline-block;
    vertical-align: middle;
    padding: 0.15rem 0.6rem;
    border-radius: 999px;
    background: var(--qs-crimson);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.qs-prize-stats {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.4rem 1.25rem;
    font-size: 0.9rem;
    color: var(--qs-muted);
}

.qs-prize-stats strong { color: var(--qs-ink); }
.qs-prize-line { max-width: 34rem; font-size: 0.95rem; color: var(--qs-ink); margin-bottom: 0.4rem; }

.qs-prize-words-head {
    align-self: stretch;
    text-align: left;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--qs-muted);
    margin-top: 0.5rem;
    padding: 0 0.5rem;
}

.qs-prize-words {
    align-self: stretch;
    text-align: left;
    background: var(--qs-surface);
    border: 1px solid var(--qs-line);
    border-radius: 0.75rem;
    padding: 0.25rem 0.75rem;
}

.qs-prize-body { display: flex; flex-direction: column; align-items: center; gap: 0.4rem; width: 100%; }

.qs-onward {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
    width: 100%;
    margin-top: 0.75rem;
}

@media (min-width: 576px) {
    .qs-onward { grid-template-columns: 1fr 1fr; }
}

.qs-onward a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.85rem;
    border-radius: 0.75rem;
    border: 1px solid var(--qs-line);
    background: var(--qs-surface);
    color: var(--qs-navy);
    text-align: left;
    text-decoration: none;
}

.qs-onward a span { display: flex; flex-direction: column; font-size: 0.8rem; color: var(--qs-muted); }
.qs-onward a strong { font-size: 0.92rem; color: var(--qs-ink); }

@media (hover: hover) {
    .qs-onward a:hover { border-color: var(--qs-royal); }
}

/* ── Effects (chrome only — pointer-events:none, inside the stage) ── */
.qs-float {
    position: absolute;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--qs-emerald);
    text-shadow: 0 1px 0 #fff;
    white-space: nowrap;
    pointer-events: none;
    z-index: 4;
    animation: qs-float-up 0.9s ease-out forwards;
}

.qs-float.qs-float-crit { color: var(--qs-crimson); font-family: var(--qs-serif); font-size: 1.15rem; }

@keyframes qs-float-up {
    0% { opacity: 1; transform: translate(-50%, -50%) scale(0.9); }
    20% { transform: translate(-50%, -70%) scale(1.15); }
    100% { opacity: 0; transform: translate(-50%, -160%) scale(1); }
}

.qs-particle {
    position: absolute;
    width: 8px;
    height: 8px;
    margin: -4px 0 0 -4px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 3;
    animation: qs-burst 0.7s cubic-bezier(0.2, 0.7, 0.3, 1) forwards;
}

@keyframes qs-burst {
    0% { opacity: 1; transform: translate(0, 0) scale(1); }
    100% { opacity: 0; transform: translate(var(--dx), var(--dy)) scale(0.3); }
}

/* Above the overlays (z-index 5) on purpose: that is where they fall. */
.qs-confetti {
    position: absolute;
    top: -12px;
    width: 8px;
    height: 12px;
    border-radius: 2px;
    pointer-events: none;
    z-index: 6;
    animation: qs-confetti-fall 2.4s ease-in forwards;
}

@keyframes qs-confetti-fall {
    0% { opacity: 1; transform: translate(0, 0) rotate(0); }
    100% { opacity: 0; transform: translate(var(--drift), var(--fall, 520px)) rotate(var(--spin)); }
}

.qs-flash {
    position: absolute;
    width: 14px;
    height: 14px;
    margin: -7px 0 0 -7px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 6;
    box-shadow: 0 0 24px 10px rgba(255, 255, 255, 0.7);
    animation: qs-flash 0.6s ease-out forwards;
}

@keyframes qs-flash {
    0% { opacity: 1; transform: scale(0.4); }
    100% { opacity: 0; transform: scale(2.2); }
}

.qs-spark {
    position: absolute;
    width: 5px;
    height: 5px;
    margin: -2.5px 0 0 -2.5px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 6;
    animation: qs-spark 1.3s cubic-bezier(0.15, 0.7, 0.35, 1) forwards;
}

@keyframes qs-spark {
    0% { opacity: 1; transform: translate(0, 0) scale(1.2); }
    70% { opacity: 1; }
    100% { opacity: 0; transform: translate(var(--dx), calc(var(--dy) + 36px)) scale(0.4); }
}

.qs-combo-pop {
    position: absolute;
    top: 38%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: clamp(1.6rem, 7vw, 2.4rem);
    font-weight: 900;
    color: var(--qs-royal);
    text-shadow: 0 2px 0 #fff, 0 6px 18px rgba(31, 79, 191, 0.4);
    white-space: nowrap;
    pointer-events: none;
    z-index: 4;
    animation: qs-combo-pop 1.1s ease-out forwards;
}

.qs-combo-pop-3 { color: #7c3aed; }
.qs-combo-pop-4 { color: #ea580c; }
.qs-combo-pop-5 { color: #dc2626; }

@keyframes qs-combo-pop {
    0% { opacity: 0; transform: translate(-50%, -50%) scale(0.4) rotate(-6deg); }
    25% { opacity: 1; transform: translate(-50%, -50%) scale(1.15) rotate(2deg); }
    45% { transform: translate(-50%, -50%) scale(1) rotate(0); }
    80% { opacity: 1; }
    100% { opacity: 0; transform: translate(-50%, -80%) scale(1); }
}

.qs-toast {
    position: absolute;
    top: 0.6rem;
    left: 50%;
    transform: translateX(-50%);
    max-width: calc(100% - 1.5rem);
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    background: linear-gradient(135deg, #c99a2e, #f3d27a);
    color: #3d2703;
    font-weight: 800;
    font-size: 0.88rem;
    text-align: center;
    box-shadow: 0 4px 14px rgba(201, 154, 46, 0.35);
    pointer-events: none;
    z-index: 7;
    animation: qs-toast 2.3s ease forwards;
}

@keyframes qs-toast {
    0% { opacity: 0; transform: translate(-50%, -12px); }
    12% { opacity: 1; transform: translate(-50%, 0); }
    85% { opacity: 1; }
    100% { opacity: 0; transform: translate(-50%, -6px); }
}

.qs-bump { display: inline-block; animation: qs-bump 0.35s ease; }

@keyframes qs-bump { 0% { transform: scale(1); } 40% { transform: scale(1.3); } 100% { transform: scale(1); } }
@keyframes qs-pop { 0% { transform: scale(1); } 45% { transform: scale(1.04); } 100% { transform: scale(1); } }
@keyframes qs-shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }
@keyframes qs-deal-in { 0% { opacity: 0; transform: translateY(8px); } 100% { opacity: 1; transform: translateY(0); } }

.qs-node.qs-shake { animation: qs-shake 0.35s ease; }

.qs-heart.qs-heart-break { animation: qs-heart-break 0.6s ease; }

@keyframes qs-heart-break {
    0% { transform: scale(1); }
    30% { transform: scale(1.5); color: #ef4444; }
    60% { transform: scale(0.7) rotate(-12deg); }
    100% { transform: scale(0.85); }
}

.qs-combo-badge.qs-combo-2 { background: #0284c7; }
.qs-combo-badge.qs-combo-3 { background: #7c3aed; }
.qs-combo-badge.qs-combo-4 { background: #ea580c; }
.qs-combo-badge.qs-combo-5 { background: linear-gradient(135deg, #dc2626, #f97316); animation: qs-glow 1.2s ease-in-out infinite; }

@keyframes qs-glow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.55); }
    50% { box-shadow: 0 0 0 6px rgba(249, 115, 22, 0); }
}

.qs-visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

/* ── The page around the game ────────────────────────────────────── */
.qs-how-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem;
    counter-reset: qs-how;
}

.qs-how-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    padding: 0.45rem 0;
    border-top: 1px solid var(--bs-border-color);
}

.qs-how-item:first-child { border-top: 0; }

.qs-how-dot {
    flex: none;
    width: 1.6rem;
    height: 1.6rem;
    margin-top: 0.1rem;
    border-radius: 50%;
    background: linear-gradient(160deg, #2f62d6, #13306b);
    box-shadow: 0 3px 0 #0b1b3f;
}

.qs-how-bonus .qs-how-dot { background: linear-gradient(160deg, #f3d27a, #8a5422); box-shadow: 0 3px 0 #5b3615; }
.qs-how-nemesis .qs-how-dot { background: linear-gradient(160deg, #f43f5e, #5c0a22); box-shadow: 0 3px 0 #3f0718; }
.qs-how-prize .qs-how-dot { background: linear-gradient(160deg, #fff1bf, #c99a2e); box-shadow: 0 3px 0 #8a5d0c; }

.qs-band-pill {
    display: inline-block;
    padding: 0.08rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    color: #fff;
    background: var(--qs-navy);
}

.qs-band-beginner { background: #0f8a5f; }
.qs-band-intermediate { background: #1f4fbf; }
.qs-band-advanced { background: #7c3aed; }
.qs-band-expert { background: #a3123a; }

.qs-sample-list {
    list-style: none;
    padding: 0;
    margin: 0 0 0.5rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.25rem 1rem;
}

@media (min-width: 768px) {
    .qs-sample-list { grid-template-columns: 1fr 1fr; }
}

.qs-sample-list li { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.4rem; font-size: 0.88rem; }
.qs-sample-hanzi { font-size: 1.15rem; font-weight: 600; text-decoration: none; }
.qs-sample-picture { width: 40px; height: 40px; align-self: center; border-radius: 0.45rem; background: #fff; border: 1px solid var(--bs-border-color); }
.qs-sample-pinyin { color: var(--qs-royal); font-weight: 600; }
.qs-sample-gloss { color: var(--bs-secondary-color); }
.qs-sample-gap { color: var(--qs-royal); font-weight: 700; border-bottom: 2px solid var(--qs-royal); }

.qs-progress-row { padding: 0.35rem 0; }

.qs-progress-bar {
    height: 6px;
    border-radius: 999px;
    background: var(--bs-border-color);
    overflow: hidden;
    margin: 0.3rem 0 0.15rem;
}

.qs-progress-bar span {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--qs-gold), var(--qs-gold-light));
}

/* Dark theme: what the tokens above do not reach. */
[data-bs-theme="dark"] .qs-pick-btn.active,
[data-bs-theme="dark"] .qs-pick-btn[aria-pressed="true"] {
    background: linear-gradient(135deg, #1f4fbf, #5fb3f9);
    border-color: #5fb3f9;
    color: #fff;
}

[data-bs-theme="dark"] .qs-float { text-shadow: none; }
[data-bs-theme="dark"] .qs-combo-pop { text-shadow: none; }
[data-bs-theme="dark"] .qs-q-pinyin,
[data-bs-theme="dark"] .qs-word-pinyin,
[data-bs-theme="dark"] .qs-opt-sub,
[data-bs-theme="dark"] .qs-tile-sub,
[data-bs-theme="dark"] .qs-fb-pinyin,
[data-bs-theme="dark"] .qs-sample-pinyin { color: #8fbaff; }
[data-bs-theme="dark"] .qs-gap { color: #8fbaff; border-color: #8fbaff; }
[data-bs-theme="dark"] .qs-bubble { color: #8fbaff; border-color: #5fb3f9; }
[data-bs-theme="dark"] .qs-bubble::after { border-color: #5fb3f9; }
[data-bs-theme="dark"] .qs-link-btn { color: #8fbaff; }
[data-bs-theme="dark"] .qs-nav-btn { color: #cfe0ff; }
[data-bs-theme="dark"] .qs-prompt { box-shadow: none; }

/* Last in the file: reduced motion turns every effect off, not just slower. */
@media (prefers-reduced-motion: reduce) {
    .qs-stage *, .qs-hud *, .qs-picker * { animation: none !important; transition: none !important; }
    .qs-option:active:not(:disabled), .qs-pick-btn:active, .qs-node:active:not(.is-locked) { transform: none; }
    .qs-node-row { transform: translateX(var(--qs-x, 0)); }
    /* The newly walked segment is revealed by its animation; with none, show it at once. */
    .qs-line.is-fresh { stroke-dasharray: none; stroke-dashoffset: 0; }
}