/* ---------- Site themes (page chrome only; keycaps use colorways) ---------- */
:root,
:root[data-theme="light"] {
  --bg: #CFE2DC;
  --bg-glow: #DDEBE6;
  --bg-edge: #B3CEC6;
  --text: #172A33;
  --muted: #4C6570;
  --surface: #F3EEE3;
  --surface-soft: rgba(243, 238, 227, .55);
  --surface-2: #FFFFFF;
  --line: rgba(39, 64, 77, .2);
  --ui: #27404D;
  --ui-text: #F3EEE3;
  --accent: #EE9B3A;
  --accent-side: #B96F1E;
  --accent-text: #172A33;
  --ok: #2F8F68;
  --bad: #C2412D;
  --shadow: rgba(23, 42, 51, .35);
  --card-border: 2px solid transparent;
  --text-input-bg: #FFFFFF;
  --sprint-pending: #8EA3AB;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #15232B;
  --bg-glow: #1E333D;
  --bg-edge: #0E181D;
  --text: #E6EEEA;
  --muted: #9CB3B9;
  --surface: #1F333D;
  --surface-soft: rgba(31, 51, 61, .7);
  --surface-2: #29424E;
  --line: rgba(207, 226, 220, .18);
  --ui: #CFE2DC;
  --ui-text: #15232B;
  --accent: #EE9B3A;
  --accent-side: #B96F1E;
  --accent-text: #15232B;
  --ok: #6FD3A6;
  --bad: #FF8A73;
  --shadow: rgba(0, 0, 0, .55);
  --text-input-bg: #15232B;
  --sprint-pending: #62808A;
  color-scheme: dark;
}
:root[data-theme="contrast"] {
  --bg: #FFFFFF;
  --bg-glow: #FFFFFF;
  --bg-edge: #FFFFFF;
  --text: #000000;
  --muted: #1A1A1A;
  --surface: #FFFFFF;
  --surface-soft: #FFFFFF;
  --surface-2: #FFF4B8;
  --line: #000000;
  --ui: #000000;
  --ui-text: #FFFFFF;
  --accent: #FFD400;
  --accent-side: #000000;
  --accent-text: #000000;
  --ok: #006B3C;
  --bad: #B00020;
  --shadow: rgba(0, 0, 0, .6);
  --card-border: 2px solid #000000;
  --text-input-bg: #FFFFFF;
  --sprint-pending: #555555;
  color-scheme: light;
}
:root[data-theme="minimal"] {
  --bg: #F6F6F4;
  --bg-glow: #F6F6F4;
  --bg-edge: #F6F6F4;
  --text: #1E1E1E;
  --muted: #6B6B6B;
  --surface: #FFFFFF;
  --surface-soft: transparent;
  --surface-2: #FFFFFF;
  --line: #DEDEDA;
  --ui: #1E1E1E;
  --ui-text: #FFFFFF;
  --accent: #1E1E1E;
  --accent-side: #1E1E1E;
  --accent-text: #FFFFFF;
  --ok: #2F7A57;
  --bad: #B23A26;
  --shadow: rgba(0, 0, 0, .14);
  --card-border: 1px solid #DEDEDA;
  --text-input-bg: #FFFFFF;
  --sprint-pending: #A0A0A0;
  color-scheme: light;
}

:root {
  --cols: 16;
  --u: clamp(13px, calc((min(100vw, 1180px) - 72px) / (var(--cols) + 1.4)), 52px);
  --rx: 34deg;
  --ry: 0deg;
  --rz: -2deg;
  --display: "Bricolage Grotesque", "Avenir Next", system-ui, sans-serif;
  --body: "Atkinson Hyperlegible", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(120% 70% at 50% 30%, var(--bg-glow) 0%, var(--bg) 55%, var(--bg-edge) 100%);
  background-color: var(--bg);
  color: var(--text);
  font: 400 1.0625rem/1.55 var(--body);
  overflow-x: hidden;
}
button { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
[data-theme="contrast"] :focus-visible { outline: 4px solid #0047FF; }
kbd {
  font: 700 0.95em var(--body);
  background: var(--surface);
  color: var(--text);
  border: var(--card-border);
  border-radius: 6px;
  padding: 0.1em 0.5em;
  box-shadow: 0 2px 0 var(--line);
}
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }

/* ---------- Header ---------- */
.top {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  max-width: 1180px; margin: 0 auto; padding: 28px 24px 0;
}
.wordmark {
  margin: 0;
  font: 800 clamp(2.5rem, 7.4vw, 5.6rem)/0.92 var(--display);
  letter-spacing: -0.045em;
  color: var(--ui);
  display: flex;
  flex-wrap: wrap;
  column-gap: 0.24em;
  max-width: 100%;
}
.wm-word { display: inline-flex; white-space: nowrap; }
[data-theme="minimal"] .wordmark { font-weight: 600; letter-spacing: -0.035em; }
.wm-letter { display: inline-block; transition: transform 60ms ease-out, color 60ms; }
.wm-letter.down { transform: translateY(0.07em) scaleY(0.94); color: var(--accent-side); }
[data-theme="dark"] .wm-letter.down { color: var(--accent); }
.top-actions { display: flex; gap: 10px 14px; flex-wrap: wrap; align-items: flex-end; padding-bottom: 12px; }
.pill {
  border: 2px solid var(--ui);
  background: transparent;
  border-radius: 999px;
  padding: 7px 16px;
  font-weight: 700;
  cursor: pointer;
}
.pill[aria-pressed="true"] { background: var(--ui); color: var(--ui-text); }

.lede { max-width: 1180px; margin: 12px auto 0; padding: 0 24px; font-size: 1.2rem; line-height: 1.45; }
main { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ---------- Segmented controls ---------- */
.seg { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.seg legend, .opt-label { font-weight: 700; padding: 0; margin-bottom: 6px; display: block; }
.seg button {
  border: 2px solid var(--ui); background: transparent; border-radius: 8px;
  padding: 6px 12px; cursor: pointer;
}
.seg button[aria-pressed="true"] { background: var(--ui); color: var(--ui-text); }
.seg.compact button { padding: 4px 10px; font-size: .95rem; }

/* ---------- Stage ---------- */
.stage {
  position: relative;
  perspective: 1500px;
  perspective-origin: 50% 0%;
  padding: calc(var(--u) * 1.6) 0 calc(var(--u) * 1.4);
  display: flex; justify-content: center;
  touch-action: none;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}
.stage.dragging { cursor: grabbing; }
.board {
  transform-style: preserve-3d;
  transform: rotateX(var(--rx)) rotateY(var(--ry)) rotateZ(var(--rz));
  transition: transform 600ms cubic-bezier(.2, .8, .2, 1);
  /* keycap profile defaults (Cherry) */
  --k-side: .1;
  --k-lift: .07;
  --k-radius: .14;
  --k-inset: .045;
  --k-dish: .22;
  --k-font: .27;
}
.stage.dragging .board { transition: none; }
.board.intro { animation: rise 1100ms cubic-bezier(.2, .8, .2, 1) both; }
@keyframes rise {
  from { transform: translateY(60px) rotateX(70deg) rotateY(0) rotateZ(-8deg); opacity: 0; }
  to { transform: rotateX(var(--rx)) rotateY(var(--ry)) rotateZ(var(--rz)); opacity: 1; }
}
.board[data-profile="sa"] { --k-side: .2; --k-lift: .14; --k-radius: .26; --k-inset: .05; --k-dish: .4; --k-font: .26; }
.board[data-profile="dsa"] { --k-side: .075; --k-lift: .05; --k-radius: .22; --k-inset: .06; --k-dish: .3; --k-font: .25; }
.board[data-profile="low"] { --k-side: .03; --k-lift: .015; --k-radius: .08; --k-inset: .05; --k-dish: 0; --k-font: .22; }

.case {
  position: relative;
  background: linear-gradient(170deg, var(--case-a) 0%, var(--case-b) 45%, var(--case-c) 100%);
  border-radius: calc(var(--u) * 0.42);
  padding: calc(var(--u) * 0.42);
  box-shadow:
    0 calc(var(--u) * .18) 0 var(--plate),
    0 calc(var(--u) * .5) calc(var(--u) * .8) var(--shadow),
    inset 0 1px 0 rgba(255, 255, 255, .18);
  transform-style: preserve-3d;
  transition: background 300ms;
}
.plate {
  position: relative;
  width: calc(var(--u) * var(--cols) + var(--u) * .16);
  height: calc(var(--u) * var(--rows) + var(--u) * .16);
  background: var(--plate);
  border-radius: calc(var(--u) * 0.18);
  transform-style: preserve-3d;
}
.desk-shadow {
  position: absolute; left: 10%; right: 10%; bottom: 6%; height: 30%;
  background: radial-gradient(closest-side, var(--shadow), transparent);
  filter: blur(8px);
  pointer-events: none;
}
.stage-hint {
  position: absolute; bottom: 0; left: 0; right: 0; margin: 0;
  text-align: center; color: var(--muted); font-size: .95rem;
  transition: opacity 400ms;
}
.stage-hint.gone { opacity: 0; }

/* ---------- Keys ---------- */
.key {
  position: absolute;
  left: calc(var(--u) * var(--x) + var(--u) * .08);
  top: calc(var(--u) * var(--y) + var(--u) * .08);
  width: calc(var(--u) * var(--w));
  height: calc(var(--u) * var(--h));
  padding: 0; margin: 0; border: 0; background: none;
  cursor: pointer;
  transform-style: preserve-3d;
  -webkit-tap-highlight-color: transparent;
  --face: var(--alpha-face); --side: var(--alpha-side); --legend: var(--alpha-legend);
}
.key.fn { --face: var(--fn-face); --side: var(--fn-side); --legend: var(--fn-legend); }
.key.mod { --face: var(--mod-face); --side: var(--mod-side); --legend: var(--mod-legend); }
.key.accent { --face: var(--accent-face); --side: var(--accent-side); --legend: var(--accent-legend); }

.cap {
  position: absolute;
  inset: calc(var(--u) * var(--k-inset));
  border-radius: calc(var(--u) * var(--k-radius));
  background: linear-gradient(180deg, color-mix(in srgb, var(--face) 82%, #fff) 0%, var(--face) 60%);
  color: var(--legend);
  box-shadow:
    0 calc(var(--u) * var(--k-side)) 0 0 var(--side),
    0 calc(var(--u) * (var(--k-side) + .06)) calc(var(--u) * .14) rgba(10, 20, 26, .45),
    inset 0 1px 0 rgba(255, 255, 255, .45);
  transform: translateY(calc(var(--u) * var(--k-lift) * -1)) translateZ(calc(var(--u) * .12));
  transition: transform 45ms ease-out, box-shadow 45ms ease-out, filter 45ms, background 300ms;
  display: flex; flex-direction: column; align-items: flex-start; justify-content: flex-start;
  padding: calc(var(--u) * .12) calc(var(--u) * .16);
  font: 700 calc(var(--u) * var(--k-font))/1 var(--body);
  overflow: hidden;
}
/* concave dish */
.cap::after {
  content: ""; position: absolute; inset: 10% 12% 22%;
  border-radius: calc(var(--u) * var(--k-radius));
  background: radial-gradient(120% 90% at 50% 20%, rgba(255, 255, 255, var(--k-dish)), rgba(0, 0, 0, .05));
  pointer-events: none;
}
.board[data-profile="low"] .cap::after { display: none; }
.board[data-profile="sa"] .cap { align-items: center; justify-content: center; text-align: center; }
.board[data-profile="sa"] .cap.stacked { justify-content: center; gap: .15em; }
.cap.small { font-size: calc(var(--u) * var(--k-font) * .75); }
.cap.stacked { justify-content: space-between; }
.cap .legend.sub { opacity: .62; font-size: .82em; }
.key.space .cap { align-items: center; justify-content: center; }

.key.pressed .cap {
  transform: translateY(calc(var(--u) * var(--k-side) * .7)) translateZ(calc(var(--u) * .02));
  box-shadow:
    0 calc(var(--u) * var(--k-side) * .2) 0 0 var(--side),
    0 calc(var(--u) * .03) calc(var(--u) * .05) rgba(10, 20, 26, .4),
    inset 0 1px 0 rgba(255, 255, 255, .35);
  filter: brightness(.94);
}
.key.tested .cap::before {
  content: ""; position: absolute; right: 14%; bottom: 16%;
  width: calc(var(--u) * .09); height: calc(var(--u) * .09); border-radius: 50%;
  background: #4FBF8F; box-shadow: 0 0 calc(var(--u) * .12) #4FBF8F;
}
.key.latched .cap { filter: brightness(1.12); outline: 2px solid var(--accent-face); }
.key.target .cap {
  --face: #FFD27A;
  color: #172A33;
  box-shadow:
    0 calc(var(--u) * var(--k-side)) 0 0 #B96F1E,
    0 0 calc(var(--u) * .5) calc(var(--u) * .12) rgba(238, 155, 58, .9),
    inset 0 1px 0 rgba(255, 255, 255, .6);
  animation: glow 700ms ease-in-out infinite alternate;
}
.key.guide .cap { outline: 3px solid #EE9B3A; outline-offset: -2px; }
@keyframes glow { to { filter: brightness(1.15); } }

/* ---------- Customize bar ---------- */
.custom {
  display: flex; flex-wrap: wrap; align-items: flex-start; gap: 18px 32px;
  margin-top: 4px; padding: 16px 18px;
  background: var(--surface-soft);
  border: var(--card-border);
  border-radius: 14px;
}
.swatches { display: flex; flex-wrap: wrap; gap: 8px; }
.swatch {
  display: inline-flex; align-items: center; gap: 8px;
  border: 2px solid var(--line); background: var(--surface); border-radius: 999px;
  padding: 4px 12px 4px 5px; cursor: pointer;
}
.swatch[aria-pressed="true"] { border-color: var(--ui); background: var(--surface-2); font-weight: 700; }
.swatch .chips { display: inline-flex; border-radius: 999px; overflow: hidden; box-shadow: 0 0 0 1px rgba(0, 0, 0, .15); }
.swatch .chips i { width: 12px; height: 22px; display: block; }

/* ---------- Readout ---------- */
.readout {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 24px;
  background: var(--surface-soft);
  border: var(--card-border);
  border-radius: 14px;
  padding: 10px 18px;
  margin-top: 12px;
}
.readout p { margin: 0; }
.link {
  background: none; border: 0; padding: 0 0 0 8px; cursor: pointer;
  text-decoration: underline; color: var(--muted);
}

/* ---------- Tabs ---------- */
.tabs {
  display: flex; gap: 4px; margin-top: 28px;
  border-bottom: 3px solid var(--ui);
  overflow-x: auto;
}
.tabs [role="tab"] {
  background: none; border: 0; cursor: pointer;
  font: 600 1.15rem var(--display);
  padding: 10px 18px 12px;
  border-radius: 10px 10px 0 0;
  white-space: nowrap;
}
.tabs [role="tab"][aria-selected="true"] { background: var(--ui); color: var(--ui-text); }
[data-theme="minimal"] .tabs { border-bottom-width: 1px; }
[data-theme="minimal"] .tabs [role="tab"][aria-selected="true"] { background: none; color: var(--text); box-shadow: inset 0 -3px 0 var(--ui); }

.panel { padding: 24px 0 8px; }
.panel-head { max-width: 62ch; }
.panel h2, .game h2 { font: 600 1.7rem/1.15 var(--display); margin: 0 0 6px; letter-spacing: -0.01em; }
.panel-head p { margin: 0 0 18px; }
h3 { font: 600 1.15rem var(--display); margin: 0 0 4px; }

/* ---------- Sound board ---------- */
.switches { display: grid; grid-template-columns: repeat(auto-fill, minmax(165px, 1fr)); gap: 12px; }
.switch {
  text-align: left; cursor: pointer;
  background: var(--surface);
  border: var(--card-border);
  border-radius: 14px 14px 14px 4px;
  padding: 14px 14px 16px;
  display: grid; grid-template-columns: 30px 1fr; gap: 4px 12px; align-items: start; align-content: start;
}
.switch:hover { border-color: var(--muted); }
.switch[aria-checked="true"] { border: 2px solid var(--ui); background: var(--surface-2); }
.switch .stem {
  grid-row: span 2;
  width: 30px; height: 30px; border-radius: 6px; margin-top: 2px;
  background: var(--stem);
  position: relative;
  box-shadow: inset 0 -3px 0 rgba(0, 0, 0, .18);
}
.switch .stem::before, .switch .stem::after { content: ""; position: absolute; background: rgba(255, 255, 255, .75); border-radius: 2px; }
.switch .stem::before { left: 13px; top: 6px; width: 4px; height: 18px; }
.switch .stem::after { left: 6px; top: 13px; width: 18px; height: 4px; }
.switch strong { grid-column: 2; font: 600 1.2rem var(--display); }
.switch span.blurb { grid-column: 2; font-size: .92rem; line-height: 1.4; color: var(--muted); }

.tuning { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 18px 28px; margin-top: 24px; }
.slider { display: grid; gap: 6px; font-weight: 700; }
.slider input { width: 160px; accent-color: var(--ui); }
.btn {
  background: var(--accent); color: var(--accent-text);
  border: 0; border-radius: 10px;
  padding: 11px 20px; font-weight: 700; cursor: pointer;
  box-shadow: 0 4px 0 var(--accent-side);
  transition: transform 60ms, box-shadow 60ms;
}
[data-theme="contrast"] .btn { border: 2px solid #000; }
[data-theme="minimal"] .btn { box-shadow: none; }
.btn:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--accent-side); }

/* ---------- Shortcuts ---------- */
.combo {
  min-height: 72px;
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px;
  background: var(--ui); color: var(--ui-text);
  border-radius: 14px; padding: 14px 20px; margin-bottom: 20px;
  font-size: 1.1rem;
}
.combo .muted { color: inherit; opacity: .7; }
.combo kbd { font-size: 1.4rem; padding: .15em .6em; }
.combo .plus { opacity: .6; }
.combo .name { margin-left: 12px; font: 600 1.3rem var(--display); color: var(--accent); }
[data-theme="minimal"] .combo .name, [data-theme="dark"] .combo .name { color: inherit; text-decoration: underline; text-underline-offset: 4px; }
.shortcut-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; }
.shortcut-list {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 4px 18px;
}
.shortcut-list li {
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
  padding: 8px 4px; border-bottom: 1px solid var(--line);
}
.shortcut-list li .keys { display: flex; gap: 3px; flex-shrink: 0; }
.shortcut-list li kbd { font-size: .82rem; }
.shortcut-list li.done .label::before { content: "✓ "; color: var(--ok); font-weight: 700; }
.shortcut-list li.flash { background: color-mix(in srgb, var(--accent) 25%, transparent); border-radius: 6px; }
.log { width: 100%; border-collapse: collapse; font-size: .95rem; margin-top: 8px; }
.log th { text-align: left; font-weight: 700; padding: 4px 6px; border-bottom: 2px solid var(--ui); }
.log td { padding: 4px 6px; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }

/* ---------- Games ---------- */
.games { display: grid; grid-template-columns: 1fr 1.3fr; gap: 28px; }
.game { background: var(--surface); border: var(--card-border); border-radius: 16px; padding: 20px 22px 22px; }
.game p { margin: 0 0 12px; }
.scores { display: flex; flex-wrap: wrap; gap: 6px 22px; margin: 14px 0 16px; }
.scores p { margin: 0; }
.scores strong { font: 800 1.9rem var(--display); color: var(--ui); }
.sprint-text {
  font: 400 1.35rem/1.6 var(--body);
  background: var(--text-input-bg); border: var(--card-border); border-radius: 10px; padding: 12px 16px;
  min-height: 5.2em; max-height: 5.2em; overflow: hidden;
  color: var(--sprint-pending);
  word-break: break-word;
}
.sprint-text .ok { color: var(--text); }
.sprint-text .bad { color: var(--bad); text-decoration: underline; }
.sprint-text .cur { border-left: 2px solid var(--accent); margin-left: -2px; animation: caret 1s steps(1) infinite; }
[data-theme="minimal"] .sprint-text .cur { border-color: var(--text); }
@keyframes caret { 50% { border-color: transparent; } }

.foot { max-width: 1180px; margin: 40px auto 0; padding: 0 24px 32px; color: var(--muted); font-size: .95rem; }

.toast {
  position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%);
  background: var(--ui); color: var(--ui-text);
  padding: 10px 18px; border-radius: 10px; margin: 0;
  max-width: calc(100vw - 32px);
  box-shadow: 0 8px 24px var(--shadow);
}

@media (max-width: 820px) {
  :root { --rx: 22deg; --u: clamp(13px, calc((100vw - 48px) / (var(--cols) + 1.2)), 52px); }
  .shortcut-grid, .games { grid-template-columns: 1fr; }
  .top { padding: 18px 16px 0; }
  .lede, main, .foot { padding-left: 16px; padding-right: 16px; }
  .lede { font-size: 1.05rem; }
}

@media (prefers-reduced-motion: reduce) {
  .board, .cap, .wm-letter, .stage-hint, .case { transition: none; }
  .board.intro, .key.target .cap, .sprint-text .cur { animation: none; }
}