/* ============================================================
   Punish Mode — page styles (pu- namespace)
   Relies on base.css tokens; dark-first, body.theme-light aware.
   ============================================================ */

.pu-body [hidden] { display: none !important; }

.pu-shell {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(72px + env(safe-area-inset-top)) 20px calc(48px + env(safe-area-inset-bottom));
}

#fade-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg);
    z-index: 10000;
    pointer-events: none;
    animation: puFadeOut 0.55s ease 0.1s forwards;
}
@keyframes puFadeOut { to { opacity: 0; visibility: hidden; } }

/* ============ SETUP ============ */

#pu-setup {
    width: 100%;
    max-width: 560px;
    animation: fadeInUp 0.5s var(--ease-default) both;
}

.pu-head { text-align: center; margin-bottom: 26px; }
.pu-head h1 {
    font-family: var(--font-brand);
    font-size: 2.4rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    background: linear-gradient(120deg, var(--text) 30%, var(--accent-light));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 0 0 8px;
}
.pu-subtitle {
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-size: 0.72rem;
    color: var(--text-faint);
    margin: 0;
}

.pu-setup-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.pu-field { display: flex; flex-direction: column; gap: 9px; }
.pu-label {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-muted);
}
.pu-label-inline {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-muted);
    margin-right: 10px;
}

.pu-select {
    width: 100%;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.9rem;
    padding: 10px 12px;
    cursor: pointer;
    transition: all var(--ease-default);
}
.pu-select:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--surface-hover);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.pu-select-sm { padding: 8px 10px; font-size: 0.84rem; }

.pu-color-row { display: flex; align-items: center; margin-top: 2px; }
.pu-color-note { font-size: 0.8rem; color: var(--text-secondary); }
.pu-color-note b { color: var(--text); font-weight: 600; }

/* Segmented toggles */
.pu-seg {
    display: flex;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
}
.pu-seg-btn {
    flex: 1;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1px;
    padding: 9px 10px;
    background: var(--surface);
    border: none;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 0.84rem;
    font-weight: 600;
    cursor: pointer;
    min-height: 40px;
    transition: all var(--ease-default);
}
.pu-seg-btn:not(:last-child) { border-right: 1px solid var(--border); }
.pu-seg-btn:hover { background: var(--surface-hover); color: var(--text); }
.pu-seg-btn.active { background: var(--accent); color: #fff; }
.pu-seg-btn:active { transform: scale(0.97); }
/* .pu-seg clips overflow, so the focus ring must live inside the button */
.pu-seg-btn:focus-visible { outline: none; box-shadow: inset 0 0 0 2px var(--accent-light); }
.pu-sev-btn:focus-visible { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.pu-seg-sub {
    font-size: 0.62rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    opacity: 0.75;
}

/* Severity chips — semantic colors, same idiom as tactics difficulty */
.pu-sev-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.pu-sev-btn {
    padding: 9px 6px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    min-height: 40px;
    transition: all var(--ease-default);
}
.pu-sev-btn:hover { background: var(--surface-hover); color: var(--text); transform: translateY(-1px); }
.pu-sev-btn:active { transform: scale(0.97); }
.pu-sev-btn[data-sev="inaccuracy"].active { background: rgba(91, 155, 213, 0.16); border-color: rgba(91, 155, 213, 0.5); color: var(--accent-light); }
.pu-sev-btn[data-sev="mistake"].active    { background: rgba(251, 191, 36, 0.14); border-color: rgba(251, 191, 36, 0.5); color: #fbd38d; }
.pu-sev-btn[data-sev="blunder"].active    { background: rgba(248, 113, 113, 0.14); border-color: rgba(248, 113, 113, 0.5); color: #fca5a5; }
.pu-sev-btn[data-sev="mixed"].active      { background: rgba(156, 120, 180, 0.16); border-color: rgba(156, 120, 180, 0.5); color: #c9a8e0; }
body.theme-light .pu-sev-btn[data-sev="mistake"].active { color: #92600a; }
body.theme-light .pu-sev-btn[data-sev="blunder"].active { color: #b91c1c; }
body.theme-light .pu-sev-btn[data-sev="mixed"].active   { color: #6d3f96; }
body.theme-light .pu-sev-btn[data-sev="inaccuracy"].active { color: #2a66ad; }

.pu-field-split { flex-direction: row; gap: 18px; }
.pu-mini-field { flex: 1; display: flex; flex-direction: column; gap: 9px; }

/* Toggle switch (site idiom) */
.pu-toggle { position: relative; display: inline-block; width: 36px; height: 20px; cursor: pointer; margin-top: 4px; }
.pu-toggle input { opacity: 0; width: 0; height: 0; }
.pu-toggle-track {
    position: absolute;
    inset: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    transition: all var(--ease-default);
}
.pu-toggle-track::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--text-muted);
    transition: all var(--ease-default);
}
.pu-toggle input:checked + .pu-toggle-track { background: var(--accent); border-color: var(--accent); }
.pu-toggle input:checked + .pu-toggle-track::after { left: 18px; background: #fff; }
.pu-toggle input:focus-visible + .pu-toggle-track { box-shadow: 0 0 0 3px var(--accent-glow); }

.pu-start-btn {
    margin-top: 4px;
    width: 100%;
    padding: 13px 16px;
    background: var(--accent);
    border: none;
    border-radius: 10px;
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    box-shadow: 0 2px 12px rgba(91, 155, 213, 0.25);
    transition: all var(--ease-default);
}
.pu-start-btn:hover { filter: brightness(1.1); transform: translateY(-1px); }
.pu-start-btn:active { transform: scale(0.97); }
.pu-start-btn:disabled { opacity: 0.55; cursor: default; transform: none; filter: none; }

.pu-setup-stats {
    text-align: center;
    font-size: 0.76rem;
    color: var(--text-faint);
    min-height: 1em;
}

/* ============ GAME ============ */

#pu-game { width: 100%; max-width: 1020px; }
.pu-game-wrap {
    display: flex;
    gap: 26px;
    align-items: center;
    justify-content: center;
    animation: fadeInUp 0.45s var(--ease-default) both;
}

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

.pu-player-bar {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 0 4px;
    min-height: 26px;
}
.pu-player-glyph { font-size: 1.05rem; color: var(--text-muted); line-height: 1; }
.pu-player-name { font-size: 0.86rem; font-weight: 600; color: var(--text-secondary); }

.pu-thinking { display: inline-flex; gap: 4px; align-items: center; margin-left: 2px; }
.pu-thinking i {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--accent-light);
    animation: puDot 1.1s ease-in-out infinite;
}
.pu-thinking i:nth-child(2) { animation-delay: 0.18s; }
.pu-thinking i:nth-child(3) { animation-delay: 0.36s; }
@keyframes puDot { 0%, 60%, 100% { opacity: 0.25; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-3px); } }

.pu-prep-chip {
    margin-left: auto;
    font-size: 0.62rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 999px;
    padding: 3px 10px;
    border: 1px solid rgba(127, 212, 154, 0.45);
    color: #9fe0b3;
    white-space: nowrap;
}
.pu-prep-chip.off { border-color: var(--border); color: var(--text-faint); text-transform: none; letter-spacing: 0.02em; }
body.theme-light .pu-prep-chip { color: #1e7a43; border-color: rgba(30, 122, 67, 0.4); }

/* --- Board --- */
.pu-board-frame { position: relative; }
.pu-board {
    --sq: calc(min(min(88vw, 560px), calc(100vh - 300px), calc(100dvh - 300px)) / 8);
    position: relative;
    width: calc(var(--sq) * 8);
    height: calc(var(--sq) * 8);
    border-radius: 8px;
    overflow: hidden;
    background: repeating-conic-gradient(var(--sq-dark, #94a7b8) 0% 25%, var(--sq-light, #eae6df) 0% 50%);
    background-size: 25% 25%;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.07);
    user-select: none;
    -webkit-user-select: none;
    touch-action: none;
}
body.theme-light .pu-board { box-shadow: 0 18px 50px rgba(30, 50, 80, 0.18), 0 0 0 1px rgba(0, 0, 0, 0.06); }

.pu-sq { position: absolute; width: var(--sq); height: var(--sq); }
.pu-sq .pu-coord {
    position: absolute;
    font-size: calc(var(--sq) * 0.17);
    font-weight: 600;
    opacity: 0.6;
    pointer-events: none;
    z-index: 1;
}
.pu-sq .pu-coord.file { bottom: 1px; right: 3px; }
.pu-sq .pu-coord.rank { top: 1px; left: 3px; }
.pu-sq.light .pu-coord { color: var(--sq-dark, #94a7b8); }
.pu-sq.dark .pu-coord { color: var(--sq-light, #eae6df); }

.pu-sq.lastmove::after { content: ''; position: absolute; inset: 0; background: rgba(91, 155, 213, 0.34); }
.pu-sq.selected::after { content: ''; position: absolute; inset: 0; background: rgba(255, 255, 255, 0.28); }
.pu-sq.check::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(230, 70, 70, 0.75) 0%, rgba(230, 70, 70, 0.25) 55%, transparent 75%);
}
.pu-sq.dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: calc(var(--sq) * 0.3);
    height: calc(var(--sq) * 0.3);
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: rgba(10, 16, 26, 0.28);
    z-index: 3;
}
.pu-sq.dot.capture::before {
    width: calc(var(--sq) * 0.92);
    height: calc(var(--sq) * 0.92);
    background: transparent;
    border: calc(var(--sq) * 0.07) solid rgba(10, 16, 26, 0.3);
}

.pu-piece {
    position: absolute;
    width: var(--sq);
    height: var(--sq);
    background-size: 100% 100%;
    background-repeat: no-repeat;
    cursor: grab;
    z-index: 2;
    transition: transform 0.13s cubic-bezier(0.2, 0.8, 0.3, 1);
    will-change: transform;
}
.pu-piece.dragging { transition: none; z-index: 10; cursor: grabbing; pointer-events: none; }

/* Promotion picker */
.pu-promo {
    position: absolute;
    inset: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: rgba(6, 9, 15, 0.78);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-radius: 8px;
}
.pu-promo button {
    width: calc(var(--sq) * 1.15);
    height: calc(var(--sq) * 1.15);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background-color: rgba(91, 155, 213, 0.12);
    background-size: 86% 86%;
    background-position: center;
    background-repeat: no-repeat;
    cursor: pointer;
    transition: all var(--ease-snappy);
}
.pu-promo button:hover { border-color: var(--accent); transform: translateY(-3px); background-color: rgba(91, 155, 213, 0.28); }

/* --- Side panel --- */
.pu-side {
    width: 288px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-self: stretch;
    justify-content: center;
}

.pu-side-head { display: flex; flex-direction: column; gap: 7px; }
.pu-side-title {
    font-family: var(--font-brand);
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.25;
    overflow-wrap: anywhere; /* long repertoire line names must wrap */
}
.pu-side-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.pu-tag {
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 999px;
    padding: 2px 9px;
    border: 1px solid var(--border);
    color: var(--text-muted);
}
.pu-tag.sev-inaccuracy { color: var(--accent-light); border-color: rgba(91, 155, 213, 0.45); }
.pu-tag.sev-mistake    { color: #fbd38d; border-color: rgba(251, 191, 36, 0.45); }
.pu-tag.sev-blunder    { color: #fca5a5; border-color: rgba(248, 113, 113, 0.45); }
.pu-tag.sev-mixed      { color: #c9a8e0; border-color: rgba(156, 120, 180, 0.45); }
body.theme-light .pu-tag.sev-inaccuracy { color: #2a66ad; }
body.theme-light .pu-tag.sev-mistake { color: #92600a; }
body.theme-light .pu-tag.sev-blunder { color: #b91c1c; }
body.theme-light .pu-tag.sev-mixed   { color: #6d3f96; }

.pu-feedback {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 11px 13px;
    font-size: 0.83rem;
    line-height: 1.45;
    color: var(--text-secondary);
    transition: all var(--ease-default);
}
.pu-feedback.warn { background: rgba(251, 191, 36, 0.09); border-color: rgba(251, 191, 36, 0.4); color: #fbd38d; }
.pu-feedback.good { background: rgba(74, 222, 128, 0.09); border-color: rgba(74, 222, 128, 0.4); color: #9fe0b3; }
.pu-feedback.bad  { background: rgba(248, 113, 113, 0.09); border-color: rgba(248, 113, 113, 0.4); color: #fca5a5; }
.pu-feedback.mid  { background: rgba(251, 191, 36, 0.07); border-color: rgba(251, 191, 36, 0.3); color: var(--text-secondary); }
body.theme-light .pu-feedback.warn { color: #92600a; }
body.theme-light .pu-feedback.good { color: #1e7a43; }
body.theme-light .pu-feedback.bad  { color: #b91c1c; }

.pu-moves {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px 12px;
    font-size: 0.84rem;
    line-height: 1.9;
    max-height: 132px;
    overflow-y: auto;
    color: var(--text-secondary);
}
.pu-mvnum { color: var(--text-faint); margin: 0 5px 0 2px; font-size: 0.76rem; }
.pu-mv { margin-right: 2px; padding: 1px 4px; border-radius: 4px; }
.pu-mv.opening { color: var(--text-faint); }
.pu-mv.latest { background: var(--accent-glow); color: var(--text); }
.pu-mv.mistake { color: #fca5a5; text-decoration: underline dotted; text-underline-offset: 3px; }
body.theme-light .pu-mv.mistake { color: #b91c1c; }

.pu-hud {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}
.pu-hud-stat {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 9px 6px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}
.pu-hud-num { font-family: var(--font-brand); font-size: 1.15rem; font-weight: 600; color: var(--text); }
.pu-hud-num.pu-good { color: #9fe0b3; }
.pu-hud-num.pu-bad { color: #fca5a5; }
body.theme-light .pu-hud-num.pu-good { color: #1e7a43; }
body.theme-light .pu-hud-num.pu-bad { color: #b91c1c; }
.pu-hud-label {
    font-size: 0.58rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-faint);
}

.pu-verdicts {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 120px;
    overflow-y: auto;
}
.pu-verdict {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--text-secondary);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 7px 10px;
    animation: fadeInUp 0.3s var(--ease-default) both;
}
.pu-verdict b { color: var(--text); font-weight: 600; }
.pu-verdict .pu-v-icon { font-size: 0.82rem; }
.pu-verdict.punished .pu-v-icon { color: #9fe0b3; }
.pu-verdict.partial .pu-v-icon { color: #fbd38d; }
.pu-verdict.missed .pu-v-icon { color: #fca5a5; }
body.theme-light .pu-verdict.punished .pu-v-icon,
body.theme-light .pu-sum-row.punished .pu-v-icon { color: #1e7a43; }
body.theme-light .pu-verdict.partial .pu-v-icon,
body.theme-light .pu-sum-row.partial .pu-v-icon { color: #92600a; }
body.theme-light .pu-verdict.missed .pu-v-icon,
body.theme-light .pu-sum-row.missed .pu-v-icon { color: #b91c1c; }

.pu-actions { display: flex; gap: 8px; }
.pu-btn {
    flex: 1;
    padding: 10px 12px;
    background: var(--accent);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.84rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--ease-default);
    min-height: 40px;
}
.pu-btn:hover { filter: brightness(1.1); transform: translateY(-1px); }
.pu-btn:active { transform: scale(0.97); }
.pu-btn-secondary {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-muted);
}
.pu-btn-secondary:hover { background: var(--surface-hover); color: var(--text); border-color: var(--border-hover); filter: none; }

/* Toast */
.pu-toast {
    position: fixed;
    bottom: calc(26px + env(safe-area-inset-bottom));
    left: 50%;
    transform: translateX(-50%);
    background: rgba(10, 13, 20, 0.95);
    border: 1px solid var(--accent);
    border-radius: 999px;
    color: var(--text);
    font-size: 0.82rem;
    padding: 10px 22px;
    z-index: 60;
    animation: fadeInUp 0.3s var(--ease-default) both;
}
body.theme-light .pu-toast { background: rgba(255, 255, 255, 0.97); }

/* ============ SUMMARY ============ */

#pu-summary { width: 100%; max-width: 640px; }
.pu-sum-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: 36px 32px;
    text-align: center;
    animation: fadeInUp 0.5s var(--ease-default) both;
}
.pu-sum-kicker {
    font-size: 0.64rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--text-faint);
    margin-bottom: 10px;
}
.pu-sum-title {
    font-family: var(--font-brand);
    font-size: 1.9rem;
    font-weight: 600;
    margin: 0 0 6px;
    background: linear-gradient(120deg, var(--text) 30%, var(--accent-light));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.pu-sum-sub { font-size: 0.88rem; color: var(--text-secondary); margin: 0 0 24px; }

.pu-sum-tiles {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    margin-bottom: 22px;
}
.pu-tile {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 6px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
}
.pu-tile-num { font-family: var(--font-brand); font-size: 1.3rem; font-weight: 600; color: var(--text); }
.pu-tile-label {
    font-size: 0.56rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-faint);
}
.pu-tile-good .pu-tile-num { color: #9fe0b3; }
.pu-tile-mid .pu-tile-num { color: #fbd38d; }
.pu-tile-bad .pu-tile-num { color: #fca5a5; }
.pu-tile-accent .pu-tile-num { color: var(--accent-light); }
body.theme-light .pu-tile-good .pu-tile-num { color: #1e7a43; }
body.theme-light .pu-tile-mid .pu-tile-num { color: #92600a; }
body.theme-light .pu-tile-bad .pu-tile-num { color: #b91c1c; }

.pu-sum-list {
    display: flex;
    flex-direction: column;
    gap: 7px;
    margin-bottom: 24px;
    text-align: left;
    max-height: 260px;
    overflow-y: auto;
}
.pu-sum-row {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px 13px;
    font-size: 0.82rem;
    color: var(--text-secondary);
}
.pu-sum-row .pu-v-icon { flex-shrink: 0; }
.pu-sum-row.punished .pu-v-icon { color: #9fe0b3; }
.pu-sum-row.partial .pu-v-icon { color: #fbd38d; }
.pu-sum-row.missed .pu-v-icon { color: #fca5a5; }
.pu-sum-move { font-weight: 600; color: var(--text); white-space: nowrap; }
.pu-sum-sev {
    font-size: 0.56rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 999px;
    padding: 2px 8px;
    border: 1px solid var(--border);
    flex-shrink: 0;
}
.pu-sum-sev.inaccuracy { color: var(--accent-light); border-color: rgba(91, 155, 213, 0.45); }
.pu-sum-sev.mistake { color: #fbd38d; border-color: rgba(251, 191, 36, 0.45); }
.pu-sum-sev.blunder { color: #fca5a5; border-color: rgba(248, 113, 113, 0.45); }
body.theme-light .pu-sum-sev.mistake { color: #92600a; }
body.theme-light .pu-sum-sev.blunder { color: #b91c1c; }
.pu-sum-detail { flex: 1; line-height: 1.4; }
.pu-sum-detail b { color: var(--text); font-weight: 600; }

.pu-sum-actions { display: flex; gap: 10px; justify-content: center; }
.pu-sum-actions .pu-btn { flex: 0 1 180px; }

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

@media (max-width: 900px) {
    .pu-game-wrap { flex-direction: column; gap: 18px; }
    .pu-side { width: 100%; max-width: min(92vw, 560px); align-self: center; }
    .pu-moves { max-height: 92px; }
    .pu-verdicts { max-height: 96px; }
    /* extra bottom room so the fixed theme toggle never covers the actions */
    .pu-shell { padding-top: calc(64px + env(safe-area-inset-top)); padding-bottom: calc(76px + env(safe-area-inset-bottom)); align-items: flex-start; }
}

@media (max-width: 600px) {
    .pu-setup-card { padding: 20px 16px; }
    .pu-head h1 { font-size: 1.9rem; }
    /* subtract the shell's 20px gutters so the board can't force h-scroll */
    .pu-board { --sq: calc(min(calc(100vw - 40px), calc(100dvh - 320px)) / 8); }
    .pu-sev-row { grid-template-columns: repeat(2, 1fr); }
    .pu-field-split { flex-direction: column; gap: 16px; }
    .pu-sum-tiles { grid-template-columns: repeat(3, 1fr); }
    .pu-sum-card { padding: 26px 18px; }
    .pu-sum-actions { flex-direction: column; }
    .pu-sum-actions .pu-btn { flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
    #fade-overlay { animation-duration: 0.01s; }
    .pu-thinking i { animation: none; opacity: 0.7; }
    .pu-piece { transition: none; }
    .pu-verdict, #pu-setup, .pu-game-wrap, .pu-sum-card { animation: none; }
}