/* Layout: one-screen arcade cabinet — hold/stats | well | next/keys; stacks to stats row + well + touch pad on phones */
:root{
  color-scheme:light;
  --bg:#e9eef2; --surface:#f8fafb; --line:#d3dbe2; --ink:#18212e; --muted:#5f6b7b;
  --accent:#2f62d6; --accent-ink:#ffffff; --track:#dfe5ec;
  --well:#1a2230; --well-grid:#243044; --well-edge:#0f151f;
  --p-I:#35b4c8; --p-O:#efbd45; --p-T:#9a6ce6; --p-S:#55bb74; --p-Z:#e45d67; --p-J:#4a7de0; --p-L:#ee8a3e;
  --f-display:"Bricolage Grotesque", "Be Vietnam Pro", system-ui, sans-serif;
  --f-body:"Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono:"JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}
/* Dark: follows OS or the viewer's data-theme unless the player chose a theme in-game (data-game-theme) */
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]):not([data-game-theme]){
  --bg:#10151d; --surface:#171e29; --line:#273142; --ink:#e7ecf3; --muted:#93a0b3;
  --accent:#6f97f2; --accent-ink:#0d1320; --track:#222b39;
  --well:#0b1018; --well-grid:#161e2b; --well-edge:#05080d; color-scheme:dark}}
:root[data-theme="dark"]:not([data-game-theme]), :root[data-game-theme="dark"]{
  --bg:#10151d; --surface:#171e29; --line:#273142; --ink:#e7ecf3; --muted:#93a0b3;
  --accent:#6f97f2; --accent-ink:#0d1320; --track:#222b39;
  --well:#0b1018; --well-grid:#161e2b; --well-edge:#05080d; color-scheme:dark}
:root[data-game-theme="light"]{
  --bg:#e9eef2; --surface:#f8fafb; --line:#d3dbe2; --ink:#18212e; --muted:#5f6b7b;
  --accent:#2f62d6; --accent-ink:#ffffff; --track:#dfe5ec;
  --well:#1a2230; --well-grid:#243044; --well-edge:#0f151f; color-scheme:light}

html,body{height:100%}
html{font-size:calc(100% * var(--s,1))} /* --s is set by fit() in game.js: the UI scales with the board on large windows */
body{margin:0}
[hidden]{display:none!important}
img{max-width:100%}
.of{font-size:.75rem;color:var(--muted)}
.of-sm{font-size:.7rem}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:.9375rem;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));
  overflow:hidden;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}
*,*::before,*::after{box-sizing:border-box}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.app{height:100%;max-width:calc(900px * var(--s,1));margin:0 auto;display:flex;flex-direction:column;gap:12px;padding-block:max(14px, env(safe-area-inset-top, 0px)) max(14px, env(safe-area-inset-bottom, 0px))}

header{position:relative;display:flex;align-items:center;justify-content:space-between;gap:10px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.logo{display:grid;grid-template-columns:repeat(2,.5625rem);gap:2px;flex:none}
.logo i{width:.5625rem;height:.5625rem;border-radius:2px;display:block}
.logo i:nth-child(1){background:var(--p-Z)}.logo i:nth-child(2){background:var(--p-O)}
.logo i:nth-child(3){background:var(--p-I)}.logo i:nth-child(4){background:var(--p-T)}
h1{font-family:var(--f-display);font-weight:800;font-size:1.6rem;letter-spacing:-.02em;margin:0;line-height:1;white-space:nowrap}
.actions{display:flex;gap:8px;align-items:center}
button{font:inherit;cursor:pointer;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);
  padding:.5rem .875rem;font-weight:600;font-size:.9rem;transition:transform .08s, background .15s, border-color .15s, opacity .15s}
button:hover:not(:disabled){border-color:var(--muted)}
button:active:not(:disabled){transform:translateY(1px)}
button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
button:disabled{opacity:.4;cursor:default}
button.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
button svg{width:1.125rem;height:1.125rem;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;display:block}
button.icon{padding:0;width:2.375rem;height:2.375rem;display:inline-flex;align-items:center;justify-content:center}
.hbtn{display:inline-flex;align-items:center;gap:6px}
.hbtn .btn-ico{display:none}

/* Settings popover */
.settings{position:absolute;right:0;top:calc(100% + 8px);z-index:30;width:min(calc(340px * var(--s,1)), calc(100vw - 32px));max-height:calc(100vh - 96px);overflow:auto;overscroll-behavior:contain;background:var(--surface);
  border:1px solid var(--line);border-radius:14px;padding:14px;display:grid;gap:12px;box-shadow:0 18px 40px -18px rgba(10,20,40,.45)}
.set-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:.86rem}
.set-row > span{color:var(--ink);font-weight:500}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;background:var(--bg);padding:3px;gap:2px}
.seg button{border:0;background:transparent;padding:5px 10px;border-radius:7px;font-size:.78rem;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--surface)}
.set-sec{display:grid;gap:10px;border-top:1px solid var(--line);padding-top:12px}
.set-sec h3{margin:0;font-size:.68rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.rng{display:grid;grid-template-columns:1fr auto;gap:4px 10px;align-items:center;font-size:.84rem}
.rng output{font-family:var(--f-mono);font-size:.76rem;color:var(--muted);font-variant-numeric:tabular-nums}
.rng input{grid-column:1/-1;width:100%;accent-color:var(--accent);margin:0}
.rng small{grid-column:1/-1;color:var(--muted);font-size:.72rem;margin-top:-2px}
.bind-grid{display:grid;grid-template-columns:1fr 4.875rem 4.875rem;gap:6px;align-items:center;font-size:.84rem}
.kbtn{font-family:var(--f-mono);font-size:.74rem;padding:5px 4px;border-radius:7px;background:var(--bg);min-height:30px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.kbtn.empty{color:var(--muted)}
.kbtn.listening{border-color:var(--accent);color:var(--accent);outline:2px solid var(--accent);outline-offset:1px}
.set-actions{display:flex;gap:8px;flex-wrap:wrap}
.set-actions button{padding:6px 10px;font-size:.8rem}
.set-note{margin:0;font-size:.74rem;color:var(--muted);min-height:1em}
.switch{width:44px;height:26px;padding:0;border-radius:99px;background:var(--track);border:1px solid var(--line);position:relative;flex:none}
.switch::after{content:"";position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:var(--surface);
  box-shadow:0 1px 3px rgba(0,0,0,.3);transition:transform .15s}
.switch[aria-checked="true"]{background:var(--accent);border-color:var(--accent)}
.switch[aria-checked="true"]::after{transform:translateX(18px)}

.game{flex:1;min-height:0;display:grid;grid-template-columns:1fr auto 1fr;gap:18px;align-items:start}
.side{display:flex;flex-direction:column;gap:12px;min-width:0}
.side.left{align-items:flex-end}
.side.right{align-items:flex-start}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:.75rem .875rem;width:calc(164px * var(--s,1))}
.label{font-size:.68rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
.preview{display:block;width:100%;height:auto}
.stats{display:grid;gap:10px}
.stat .v{font-family:var(--f-mono);font-weight:700;font-size:1.3rem;font-variant-numeric:tabular-nums;line-height:1.1}
.stat.score .v{font-size:1.55rem}
.stat .label{margin:0 0 2px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.lvl-head{display:flex;align-items:baseline;justify-content:space-between;gap:6px;flex-wrap:wrap}
.row2 .label{letter-spacing:.06em;white-space:nowrap}
.lvl-head .v small{font-size:.75rem;color:var(--muted)}
.speed{font-family:var(--f-mono);font-size:.74rem;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.bar{height:6px;border-radius:99px;background:var(--track);overflow:hidden;margin-top:6px}
.bar i{display:block;height:100%;width:0;border-radius:inherit;background:var(--accent);transition:width .25s linear}
.bar.max i{background:var(--p-Z)}
.hint{font-size:.72rem;color:var(--muted);margin-top:4px;font-variant-numeric:tabular-nums}
.chain{display:flex;gap:6px;flex-wrap:wrap;margin-top:-4px}
.chip{font-size:.68rem;font-weight:600;border-radius:99px;padding:2px 8px;background:var(--track);color:var(--ink);font-variant-numeric:tabular-nums}
.chip.b2b{background:var(--p-T);color:#fff}
.keys{display:grid;grid-template-columns:auto 1fr;gap:6px 10px;font-size:.8rem;color:var(--muted);align-items:center}
kbd{font-family:var(--f-mono);font-size:.72rem;background:var(--bg);border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:1px 6px;color:var(--ink);white-space:nowrap}
.mode-tag{font-size:.72rem;color:var(--muted)}
.mode-tag b{color:var(--ink);font-weight:600}

.well{position:relative;touch-action:none;border-radius:12px;background:var(--well);padding:6px;box-shadow:0 0 0 1px var(--well-edge), 0 18px 40px -22px rgba(10,20,40,.55)}
.well.shake{animation:shake .32s ease-out}
@keyframes shake{20%{transform:translateY(3px)}45%{transform:translateY(-2px)}70%{transform:translateY(1px)}}
#board{display:block;border-radius:6px}
.overlay{position:absolute;inset:6px;border-radius:6px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  text-align:center;padding:18px;background:rgba(11,16,24,.8);color:#eef2f8;backdrop-filter:blur(3px);overflow:auto}
.overlay h2{font-family:var(--f-display);font-weight:800;font-size:1.9rem;margin:0;letter-spacing:-.02em;text-wrap:balance}
.overlay p{margin:0;color:#b9c4d4;font-size:.88rem;max-width:24ch;text-wrap:balance}
.overlay .big{font-family:var(--f-mono);font-weight:700;font-size:2.2rem;color:#fff;font-variant-numeric:tabular-nums}
.overlay .badge{font-size:.72rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#1a2230;background:var(--p-O);border-radius:999px;padding:3px 10px}
.overlay button.primary{background:#6f97f2;border-color:#6f97f2;color:#0d1320;padding:10px 24px;font-size:1rem}
.mode-pick{display:flex;flex-direction:column;align-items:center;gap:6px}
.mode-pick .seg{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14)}
.mode-pick .seg button{color:#b9c4d4;font-size:.85rem;padding:6px 12px}
.mode-pick .seg button[aria-pressed="true"]{background:#eef2f8;color:#141b27}
.mode-pick .seg{display:grid;grid-template-columns:1fr 1fr}
.mode-pick .daily{background:transparent;border-color:rgba(255,255,255,.2);color:#b9c4d4;font-size:.78rem;padding:4px 12px;border-radius:99px}
.mode-pick .daily[aria-pressed="true"]{background:var(--p-O);border-color:var(--p-O);color:#1a2230}
.ov-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px 14px;margin:0;width:min(100%,260px)}
.ov-stats div{display:grid;gap:2px}
.ov-stats dt{font-size:.6rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#8f9bb0}
.ov-stats dd{margin:0;font-family:var(--f-mono);font-weight:700;font-size:1rem;color:#eef2f8;font-variant-numeric:tabular-nums}
.mode-pick small{color:#8f9bb0;font-size:.76rem;max-width:26ch}
.lb{width:min(100%,250px);display:grid;gap:6px;text-align:left}
.lb-title{margin:0;font-size:.66rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#8f9bb0;text-align:center}
.lb ol{list-style:none;margin:0;padding:0;display:grid;gap:3px}
.lb li{display:grid;grid-template-columns:22px 20px 1fr auto;gap:6px;align-items:center;font-size:.8rem;color:#dbe4f2;padding:3px 6px;border-radius:6px}
.lb li.me{background:rgba(111,151,242,.22);color:#fff}
.lb li .rk{font-family:var(--f-mono);color:#8f9bb0;font-variant-numeric:tabular-nums}
.lb li img{width:20px;height:20px;border-radius:50%;display:block}
.lb li .nm{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.lb li .sc{font-family:var(--f-mono);font-weight:700;font-variant-numeric:tabular-nums}
.lb li.gap{display:block;text-align:center;color:#8f9bb0;padding:0;font-size:.7rem}
.lb-note{margin:0;font-size:.72rem;color:#8f9bb0;text-align:center;max-width:none}
.overlay p.lb-note{max-width:none}
.toast{position:absolute;left:50%;top:36%;transform:translate(-50%,-50%);pointer-events:none;text-align:center;opacity:0;white-space:nowrap;
  color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.55)}
.toast b{display:block;font-family:var(--f-display);font-weight:800;font-size:1.5rem;line-height:1.1}
.toast span{display:block;font-size:.82rem;font-weight:600;margin-top:4px;color:#dbe4f2}
.toast.show{animation:pop 1.1s ease-out}
@keyframes pop{0%{opacity:0;transform:translate(-50%,-30%) scale(.8)}12%{opacity:1;transform:translate(-50%,-50%) scale(1.05)}72%{opacity:1}100%{opacity:0;transform:translate(-50%,-80%)}}

.pad{display:none;gap:6px;grid-template-columns:repeat(7,1fr);padding-bottom:4px}
.pad button{height:54px;padding:0;border-radius:12px;touch-action:none;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-width:0}
.pad button svg{width:22px;height:22px;stroke-width:2.4}
.pad .txt{font-size:.62rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;line-height:1}
.pad .drop{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.mob-strip{display:none}
.topbar{display:none}

@media (max-width:640px), (pointer:coarse){ .pad{display:grid} .keys-panel{display:none} }
@media (max-width:640px){
  h1{font-size:1.25rem}
  .hbtn{padding:0;width:38px;height:38px;justify-content:center}
  .hbtn .btn-ico{display:block}
  .hbtn .btn-label{display:none}
  .game{grid-template-columns:1fr;grid-template-areas:"top" "board";gap:8px;justify-items:center}
  .game .side.desk-only{display:none}
  .well{grid-area:board}
  .topbar{grid-area:top;display:grid;grid-template-columns:56px 1.25fr 1.2fr 1.1fr 56px;gap:6px;width:100%;align-items:stretch}
  .topbar .panel{width:auto;padding:7px 8px;border-radius:10px;min-width:0}
  .topbar .stat .v{font-size:1rem}
  .topbar .label{font-size:.64rem;letter-spacing:.06em;margin-bottom:3px}
  .topbar .bar{height:4px;margin-top:4px}
  .mob-strip{display:flex;grid-column:1/-1;flex-wrap:wrap;justify-content:center;gap:4px 10px;font-size:.74rem;color:var(--muted);font-variant-numeric:tabular-nums}
  .mob-strip b{color:var(--ink);font-weight:600}
}
@media (pointer:coarse){ header .hbtn, header button.icon{width:44px;height:44px;padding:0;justify-content:center} header .hbtn .btn-ico{display:block} header .hbtn .btn-label{display:none} }
.rotate-hint{display:none}
@media (pointer:coarse) and (orientation:landscape) and (max-height:520px){
  .rotate-hint{display:flex;position:fixed;inset:0;z-index:50;flex-direction:column;align-items:center;justify-content:center;gap:14px;
    background:var(--bg);color:var(--ink);text-align:center;padding:24px}
  .rotate-hint svg{width:48px;height:48px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
  .rotate-hint p{margin:0;font-weight:600;font-size:1rem;max-width:26ch}
}
@media (prefers-reduced-motion:reduce){.toast.show{animation:none;opacity:0}.well.shake{animation:none}button,.bar i,.switch::after{transition:none}}