/* Colours are Spectre's explorer tokens (web/src/styles/widgets.css) ported
   whole; the accents take the light-scheme values that explorer's stats page
   defines (stats.css), so nothing turns pale on white. Light is the default
   and `data-theme="dark"` on <html> flips it — see theme.ts, which also reads
   the board knobs at the end of each block back out for the canvas. */
:root {
  --bg: #f7f8fa;
  --panel: #ffffff;
  --panel-2: #eef1f6;
  --text: #171a1f;
  --muted: #5b6472;
  --line: #d5dae2;
  --accent: #2f6ed4;
  --accent-ink: #ffffff;
  --good: #1c8b50;
  --bad: #c53a60;
  --warn: #a96c07;
  color-scheme: light;

  /* The board: tile outlines, the halo on your own line, how far the tile
     palette is sat back (1 = Spectre's colours as they are) and how far a
     claimed tile's tint moves off its owner's colour. */
  --board-line-alpha: 0.14;
  --board-halo-alpha: 0.45;
  --board-arrow-alpha: 0.22;
  --tile-dim: 1;
  --tile-lift: -30;
  --tile-lift-closed: -55;
  --strand-darken: 0.28;
  /* Team colours (settings: "You blue, everyone else red", key T): the one
     hue for all of yours and the one for every rival. Deepened on the light
     board by --strand-darken like any player colour, so keep them hsl(). */
  --team-me: hsl(214, 92%, 60%);
  --team-rival: hsl(2, 88%, 60%);
  /* The edge-class colours are pastel, so an unselected chip needs more of
     itself on white than it does on the dark panel. */
  --chip-off: 0.8;
}

:root[data-theme='dark'] {
  --bg: #14161a;
  --panel: #1e2127;
  --panel-2: #262a32;
  --text: #e7e9ee;
  --muted: #9aa2b1;
  --line: #363b45;
  --accent: #6ea8fe;
  --accent-ink: #081525;
  --good: #7ddb8f;
  --bad: #f58aa2;
  --warn: #ffcc55;
  color-scheme: dark;

  --board-line-alpha: 0.1;
  --board-halo-alpha: 0.55;
  --board-arrow-alpha: 0.26;
  --tile-dim: 0.52;
  --tile-lift: 70;
  --tile-lift-closed: 30;
  --strand-darken: 0;
  --chip-off: 0.55;
}

* { box-sizing: border-box; }
html, body, #root { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  overscroll-behavior: none;
}
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.92em; }
.muted { color: var(--muted); }
h1 { margin: 0 0 4px; font-size: 32px; letter-spacing: 0.02em; }
h2 { margin: 0 0 8px; font-size: 16px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }

.btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 12px;
  font: inherit;
  cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn:disabled { opacity: 0.45; cursor: default; }
.btn-accent { background: var(--accent); color: var(--accent-ink); border-color: transparent; font-weight: 600; }
.btn-big { padding: 12px 22px; font-size: 17px; }
.input {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  font: inherit;
  font-size: 18px;
  width: min(100%, 320px);
}
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}
.tag-bad { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 40%, transparent); }
.tag-good { color: var(--good); border-color: color-mix(in srgb, var(--good) 40%, transparent); }

/* Theme toggle: a quiet button, wherever the screen has room for one. */
.settings-btn { display: inline-flex; align-items: center; gap: 6px; }
.modal-backdrop { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 16px; background: color-mix(in srgb, var(--bg) 35%, transparent); }
.modal { width: min(100%, 320px); display: grid; gap: 12px; padding: 14px 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25); }
.modal-head { display: flex; align-items: center; justify-content: space-between; }
.modal-close { padding: 2px 9px; }
.setting { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 10px; font-size: 14px; }
.setting select { font: inherit; padding: 4px 6px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--text); }
.setting-check { grid-template-columns: auto 1fr; }

/* Lobby */
.lobby { max-width: 980px; margin: 0 auto; padding: 24px 16px 48px; display: grid; gap: 18px; }
.lobby-head { display: flex; align-items: flex-start; gap: 16px; flex-wrap: wrap; }
.lobby-head > div { flex: 1 1 320px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
.lobby-foot { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

/* Rule editor */
.rule-editor { display: grid; gap: 14px; }
.rule-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.rule-label { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  width: 38px; height: 38px; border-radius: 10px;
  border: 2px solid var(--chip);
  background: transparent; color: var(--chip);
  font: inherit; font-weight: 700; cursor: pointer;
  opacity: var(--chip-off);
}
/* The edge-class colours are pastel in both schemes, so a filled chip always
   takes dark ink. */
.chip.is-on { background: var(--chip); color: #171a1f; opacity: 1; }
.rule-buttons { display: flex; gap: 6px; margin-left: auto; }
.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 10px; }
/* The rule picker's tiles fill their card: big enough to read the numbers. */
.thumbs .thumb { width: 100%; height: auto; aspect-ratio: 1; }
.thumb-card { background: var(--panel-2); border: 1px solid var(--line); border-radius: 12px; padding: 6px; display: grid; justify-items: center; gap: 2px; }
.thumb-card.is-odd { border-color: color-mix(in srgb, var(--bad) 45%, transparent); }
.thumb { display: block; }
.thumb.is-clickable { cursor: pointer; }
.thumb.is-clickable:hover .thumb-outline { stroke: var(--accent); }
.thumb-outline { stroke: color-mix(in srgb, var(--text) 26%, transparent); stroke-width: 0.06; }
/* Unpaired dots are hollow: they wear the card under them, not a colour. */
.thumb-dot circle.is-hollow { fill: var(--panel-2); }
/* The stubs on an odd tile — the line that ends there. */
.thumb-stub { stroke: var(--bad); }
/* Which way the tile is turned; the board draws the same dart. */
.thumb-arrow { fill: var(--text); opacity: 0.2; }
.thumb-caption { display: flex; gap: 6px; align-items: center; font-size: 14px; color: var(--muted); }
.rule-readout { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

/* Arena */
.arena { position: fixed; inset: 0; overflow: hidden; }
/* Outlined arrow cursors only: a thin crosshair/cell vanishes over the saturated tiles. */
.arena-canvas { position: absolute; inset: 0; width: 100%; height: 100%; touch-action: none; cursor: default; display: block; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; }
.arena-canvas[data-mode='pan'] { cursor: grabbing; }
.arena-canvas[data-mode='paint'] { cursor: copy; }
.arena-tiles { pointer-events: none; }
.hud {
  position: absolute;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  backdrop-filter: blur(6px);
  pointer-events: auto;
  max-width: min(92vw, 360px);
}
.hud-me { left: 12px; top: 12px; border-left: 4px solid var(--me); position: relative; }
.hud-corner { position: absolute; top: 6px; right: 6px; display: flex; gap: 2px; }
.hud-icon {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.hud-icon:hover { background: var(--panel-2); color: var(--text); }
.hud-name { padding-right: 48px; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.hud-name .swatch { background: var(--me); }
.hud-score-row { display: flex; align-items: baseline; gap: 8px; }
.hud-score { font-size: 34px; font-weight: 700; line-height: 1.1; }
.hud-heads { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.hud-line { font-size: 13px; color: var(--muted); }
.hud-status { color: var(--text); }
.hud-rule { margin-top: 4px; }
.hud-actions { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.hud-board { right: 12px; top: 12px; min-width: 190px; }
.hud-title { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 6px; }
.hud-board ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 3px; }
.hud-board li { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.hud-board li.is-me { font-weight: 700; }
.board-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.board-score { font-variant-numeric: tabular-nums; }
.board-rank { width: 1.4em; text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; font-size: 12px; }
.board-gap { justify-content: center; color: var(--muted); line-height: 0.8; }
.swatch { display: inline-block; width: 12px; height: 12px; border-radius: 3px; }
.hud-help { left: 50%; bottom: 20px; transform: translateX(-50%); max-width: min(92vw, 520px); display: grid; gap: 8px; }
/* Patterns: sticky tabs on the left wall, numbered 1 at the top (the keys); the active one sticks out further. */
.pattern-tabs { position: absolute; left: 0; bottom: 24px; display: flex; flex-direction: column; gap: 6px; pointer-events: auto; }
.pattern-tab {
  width: 22px; height: 30px; padding: 0 5px 0 0; cursor: pointer;
  display: flex; align-items: center; justify-content: flex-end;
  font: 700 12px/1 system-ui, sans-serif; font-variant-numeric: tabular-nums; color: #fff;
  text-shadow: 0 0 2px #000, 0 0 3px #000;
  border: 1px solid var(--line); border-left: 0; border-radius: 0 5px 5px 0;
  box-shadow: 0 1px 2px color-mix(in srgb, var(--text) 18%, transparent);
  transition: width 0.15s ease-out;
}
.pattern-tab:hover { width: 28px; }
.pattern-tab.is-active { width: 44px; border-color: var(--text); }
.pattern-tab:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.toasts { position: absolute; left: 50%; top: 10px; transform: translateX(-50%); display: grid; justify-items: center; gap: 3px; pointer-events: none; }
.toast { background: color-mix(in srgb, var(--panel) 88%, transparent); border: 1px solid var(--line); border-radius: 999px; padding: 2px 10px; font-size: 12px; line-height: 1.4; animation: toast-in 0.2s ease-out; }
.toast.is-good { border-color: var(--good); }
.toast.is-bad { border-color: var(--bad); }
@keyframes toast-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.overlay { position: absolute; inset: 0; display: grid; place-items: center; background: color-mix(in srgb, var(--bg) 72%, transparent); font-size: 20px; text-align: center; }
.overlay-fallback { margin-top: 8px; font-size: 14px; color: var(--muted); }
.btn-link {
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  font: inherit;
  font-size: inherit;
  color: var(--accent);
  text-decoration: underline;
  cursor: pointer;
}
.btn-link:hover { opacity: 0.85; }

@media (max-width: 640px) {
  .thumbs { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  /* Still top right on a phone, just compact, and the player card makes room. */
  .hud-me { max-width: calc(100vw - 172px); padding: 8px 10px; }
  .hud-board { right: 8px; top: 8px; min-width: 0; width: 148px; padding: 8px 10px; }
  .hud-board li { font-size: 12px; gap: 5px; }
  .hud-board li:nth-child(n + 6):not(.is-me):not(.board-gap) { display: none; }
  .hud-score { font-size: 26px; }
  .rule-buttons { margin-left: 0; }
}

/* Mode / solo options */
.mode-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.lobby-room { margin: 0 0 12px; font-size: 14px; }
.lobby-intro { margin-bottom: 12px; font-size: 14px; line-height: 1.5; }
.lobby-intro p { margin: 0 0 8px; }
.lobby-sig { font-style: italic; color: var(--muted); }
.lobby-notice { margin: 0 0 10px; padding: 6px 10px; border: 1px solid color-mix(in srgb, var(--bad) 40%, transparent); border-radius: 6px; font-size: 14px; }
.btn.is-on { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 15%, transparent); }
.solo-row { display: flex; gap: 14px; align-items: end; flex-wrap: wrap; }
.solo-row label { display: grid; gap: 4px; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.solo-row select, .solo-row input { background: var(--panel-2); color: var(--text); border: 1px solid var(--line); border-radius: 8px; padding: 7px 10px; font: inherit; font-size: 15px; }
.solo-row input[type='number'] { width: 80px; }
.solo-row a { color: var(--accent); }

/* Interactive thumbs + patch preview */
.thumb.is-drawable { cursor: crosshair; touch-action: none; }
.thumb-edge { cursor: pointer; }
.thumb-edge:hover line:first-child { stroke-opacity: 1; stroke-width: 0.14; }
.thumb-edge text { cursor: pointer; user-select: none; }
.thumb-dot { cursor: grab; }
.thumb-card.is-draft { border-color: var(--accent); }
.tag-btn { cursor: pointer; font: inherit; font-size: 12px; }
.tag-btn:hover { border-color: var(--accent); color: var(--text); }
.check { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; color: var(--muted); }
.rule-hint { margin: 0; font-size: 13px; }
.patch-preview { display: grid; gap: 6px; }
.patch-svg { width: 100%; height: auto; justify-self: center; background: var(--panel-2); border: 1px solid var(--line); border-radius: 12px; }
.patch-tiles path { stroke: color-mix(in srgb, var(--text) 16%, transparent); stroke-width: 0.05; }
.patch-stats { font-size: 13px; }
.patch-svg { pointer-events: none; }
.patch-arrow { fill: var(--text); opacity: 0.2; }
.patch-head { display: flex; justify-content: flex-end; font-size: 13px; }
.patch-head label { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }
