/* Black-and-vector look. The game is always dark; that's the aesthetic.
   Desktop layout fits the window with no page scrolling: controls on the left,
   a square arena in the middle, reference on the right, timeline at the bottom. */

:root {
  --bg: #000;
  --fg: #e8e8e8;
  --muted: #8a8a8a;
  --line: #3a3a3a;
  --enemy: #ff6b6b;
  --shield: #5fd7ff;
  --ram: #ffaa33;
  --thrust: #f4e285;
  --rock: #9a9a9a;
  --won: #7dff9b;
  /* The two scores and their sum. The other hues all mean something already
     (enemy red, ram orange, thrust yellow, won green, shield cyan), so these
     share the free blue-magenta side of the wheel: time a cool periwinkle,
     cost a magenta. On black, colours add as light, so the sum is literally
     time + cost: the two added channel by channel, then scaled back to full
     brightness, which lands on the violet between them. Kept in step with
     COLORS in web/render.js (the GIF export). */
  --time: #7394ff;
  --cost: #ff64e6;
  --sum: #c382ff; /* (#7394ff + #ff64e6) × 255 / max channel */
  --panel: 230px;
  --font: ui-monospace, 'Cascadia Mono', 'SFMono-Regular', Menlo, Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 13px/1.45 var(--font);
}

button {
  font: inherit;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 4px 8px;
  min-height: 32px;
  cursor: pointer;
}
button:hover { border-color: var(--fg); }
button:focus-visible { outline: 2px solid var(--fg); outline-offset: 1px; }

kbd {
  font: 11px var(--font);
  color: var(--fg);
  border: 1px solid var(--line);
  padding: 0 4px;
}

h2 {
  margin: 0 0 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
}

/* --- page grid ------------------------------------------------------------- */

.app {
  height: 100vh;
  height: 100dvh;
  display: grid;
  grid-template-columns: var(--panel) minmax(0, 1fr) var(--panel);
  grid-template-rows: auto minmax(0, 1fr) auto;
  grid-template-areas:
    'top   top   top'
    'left  stage right'
    'edit  edit  edit';
  gap: 10px 14px;
  padding: 10px 14px 12px;
  max-width: 1600px;
  margin: 0 auto;
}

.top { grid-area: top; display: flex; align-items: baseline; gap: 16px; }
.top h1 { margin: 0; font-size: 20px; letter-spacing: 0.4em; font-weight: 700; }
/* A link that looks like the buttons (Missions, back to the game). */
.nav-link {
  color: var(--fg);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 4px 8px;
}
.nav-link:hover { border-color: var(--fg); }
.nav-link:focus-visible { outline: 2px solid var(--fg); outline-offset: 1px; }
/* The version, small and quiet beside the title (web/version.js), on the
   header's baseline. The title's letter spacing already leaves a gap after
   the R, so it sits close without a space. */
.top h1 .version {
  margin-left: -2px;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--muted);
}
/* Leaderboard, Missions and Menu, pushed to the right. */
.top-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.top-right .nav-link { display: inline-flex; align-items: center; min-height: 32px; box-sizing: border-box; }
.board-btn.locked { color: var(--muted); border-style: dashed; }
.menu { position: relative; }
.menu-icon { margin-left: 2px; }
.menu-btn[aria-expanded='true'] { border-color: var(--fg); }
/* A dot for patch notes this browser hasn't opened yet. */
.menu-btn.unread::after,
.menu-list .unread::after {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-left: 6px;
  border-radius: 50%;
  background: var(--won);
  vertical-align: middle;
}
.menu-list {
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  z-index: 20;
  min-width: 170px;
  display: flex;
  flex-direction: column;
  padding: 4px;
  background: var(--bg);
  border: 1px solid var(--line);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.8);
}
.menu-list[hidden] { display: none; }
.menu-list button { border-color: transparent; text-align: left; }
.menu-list button:hover, .menu-list button:focus-visible { border-color: var(--fg); outline: none; }
.menu-list button[hidden] { display: none; }

/* The loading screen: a ship turning in 45° steps, firing after each turn. */
.boot {
  position: fixed;
  inset: 0;
  z-index: 10;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px;
}
.boot-ship { width: 128px; height: 128px; overflow: visible; }
.boot-ship path {
  fill: none;
  stroke: var(--fg);
  stroke-width: 1.5;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}
.boot-shot { fill: var(--fg); }
.boot-turn { animation: boot-turn 4s steps(8) infinite; }
.boot-shot { animation: boot-shot 0.5s ease-out infinite; }
@keyframes boot-turn { to { transform: rotate(360deg); } }
@keyframes boot-shot {
  from { transform: translateY(0); opacity: 1; }
  to { transform: translateY(-20px); opacity: 0; }
}
/* Only if loading never finishes. */
.boot-help {
  max-width: 34em;
  margin: 0;
  color: var(--muted);
  text-align: center;
  opacity: 0;
  animation: boot-help 0.4s 8s forwards;
}
.boot code { color: var(--fg); }
@keyframes boot-help { to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .boot-turn, .boot-shot { animation: none; }
}

.panel { overflow-y: auto; min-height: 0; }
.panel section { margin-bottom: 14px; }
.panel-left { grid-area: left; }
.panel-right { grid-area: right; }

/* --- arena: the largest square that fits -------------------------------------- */

.stage-wrap {
  grid-area: stage;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* Over the arena, as wide as it (resize in web/app.js): enemies left on the
   left, the mission's number and date on the right. */
.arena-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  max-width: 100%;
}
.puzzle-name { color: var(--muted); text-align: right; }
/* Enemies left: the goal, always in view. */
.enemies-left {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 28px;
  padding: 0 10px;
  border: 1px solid var(--line);
  color: var(--muted);
  cursor: help;
}
.enemies-left .label { font-size: 11px; letter-spacing: 0.15em; text-transform: uppercase; }
.enemies-left b { font-size: 18px; color: var(--enemy); min-width: 1ch; text-align: center; }
.enemies-left.clear b { color: var(--won); }
.enemy-icons { display: flex; gap: 2px; }
.enemy-icons canvas { width: 22px; height: 22px; transition: opacity 0.3s; }
.enemy-icons canvas.down { opacity: 0.2; }
.stage { position: relative; }
.stage canvas { display: block; background: var(--bg); }

.result {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.72);
  text-align: center;
}
.result[hidden] { display: none; }
.result-title { font-size: 26px; letter-spacing: 0.3em; font-weight: 700; }
.result[data-status='won'] .result-title { color: var(--won); }
.result[data-status='lost'] .result-title { color: var(--enemy); }
.result-actions { display: flex; gap: 8px; }
.share-status { color: var(--muted); min-height: 1.5em; white-space: pre-line; user-select: text; -webkit-user-select: text; }
/* Off-screen text for copying (copyByCommand); 16px so iOS doesn't zoom. */
.copy-buffer { position: fixed; top: 0; left: -9999px; width: 1px; height: 1px; font-size: 16px; opacity: 0; }

/* --- left panel ------------------------------------------------------------- */

/* The score: time and cost, big. */
.status { font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
/* Empty until the run's end is revealed, but still a line tall, so the
   metrics under it never move. */
.status:empty::before { content: '\00a0'; }
.status.won { color: var(--won); }
.status.lost { color: var(--enemy); }
.metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 6px 0; }
.metric { border: 1px solid var(--line); padding: 6px 10px 4px; cursor: help; }
.metric .label { display: block; font-size: 11px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted); }
.metric b { display: block; font-size: 34px; line-height: 1.1; font-weight: 700; color: var(--muted); }
.metrics.won .metric { border-color: var(--won); }
.metrics.won .metric b { color: var(--fg); }
.metric.time .label { color: var(--time); }
.metric.cost .label { color: var(--cost); }
.metrics.won .metric.time b { color: var(--time); }
.metrics.won .metric.cost b { color: var(--cost); }
.c-time { color: var(--time); }
.c-cost { color: var(--cost); }
.now { color: var(--muted); font-size: 12px; }
.now b { color: var(--fg); font-weight: 600; }
.now b#hud-tick { color: var(--time); }
.now b#hud-cost { color: var(--cost); }

.controls { display: grid; grid-template-columns: repeat(6, 1fr); gap: 4px; }
.controls button { padding: 4px 0; }

.palette { display: flex; flex-direction: column; gap: 4px; }
.action {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  text-align: left;
}
.action .glyph {
  flex: 0 0 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  line-height: 1;
}
.action .name { flex: 1; color: var(--fg); }
/* Price badge: every action shows what it costs. */
.action .price {
  min-width: 3.2em;
  padding: 1px 6px;
  border: 1px solid #6a6a6a;
  color: var(--fg);
  font-size: 14px;
  font-weight: 700;
  text-align: center;
}
.action .price.free { border-color: var(--line); color: var(--muted); font-size: 11px; font-weight: 400; }
.action kbd { color: var(--muted); }

.tools { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; }

/* --- right panel ------------------------------------------------------------ */

.legend { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.legend li { display: grid; grid-template-columns: 34px 1fr; gap: 10px; align-items: center; cursor: help; }
.legend canvas { width: 34px; height: 34px; }
.legend b { display: block; font-size: 14px; letter-spacing: 0.08em; }
.legend .hint { font-size: 15px; line-height: 1.2; }

/* Symbol rows: a big glyph and a small note. */
.sym { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; font-size: 17px; }
.sym li { display: grid; grid-template-columns: 1.2em 4.5em 1.2em; align-items: baseline; gap: 6px; cursor: help; }
.sym .note { text-align: center; }

.note { color: var(--muted); font-size: 12px; }
.c-shield { color: var(--shield); }
.c-ram { color: var(--ram); }

/* --- scrollbars ------------------------------------------------------------ */

/* Every scrollbar (the timeline's, the side panel's, dialogs', the page's) is
   drawn like the rest of the game: a thin flat bar in the line colour on
   black, brightening under the pointer. Chrome and Safari use the
   ::-webkit-scrollbar rules (Chrome ignores them if scrollbar-color is set, so
   that's only given to browsers without them, i.e. Firefox). */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-track:horizontal { border-top: 1px solid #1c1c1c; }
::-webkit-scrollbar-track:vertical { border-left: 1px solid #1c1c1c; }
::-webkit-scrollbar-thumb { background: var(--line); border: solid var(--bg); }
::-webkit-scrollbar-thumb:horizontal { border-width: 3px 0 2px; }
::-webkit-scrollbar-thumb:vertical { border-width: 0 2px 0 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }
::-webkit-scrollbar-thumb:active { background: var(--fg); }
::-webkit-scrollbar-button,
::-webkit-scrollbar-corner { display: none; }
@supports not selector(::-webkit-scrollbar) {
  * { scrollbar-width: thin; scrollbar-color: var(--line) var(--bg); }
}

/* --- timeline --------------------------------------------------------------- */

.editor { grid-area: edit; min-width: 0; }
.timeline {
  border: 1px solid var(--line);
  padding: 4px 6px 6px;
  overflow-x: auto;
  user-select: none;
}
.tl-inner { position: relative; }

/* Tick numbers; click or drag here to scrub. */
.tl-ruler {
  position: relative;
  height: 22px;
  cursor: ew-resize;
  touch-action: none;
}
.tl-ruler span {
  position: absolute;
  top: 3px;
  padding-left: 3px;
  font-size: 11px;
  color: #555;
  border-left: 1px solid #262626;
  line-height: 16px;
  pointer-events: none;
}
.tl-ruler span.major { color: var(--muted); border-left-color: var(--line); }

.track { display: flex; }
.slot {
  flex: 0 0 40px; /* SLOT_W in timeline.js */
  width: 40px;
  height: 52px;
  border: 1px solid #1c1c1c;
  font-size: 22px;
  line-height: 50px;
  text-align: center;
  overflow: hidden;
  cursor: pointer;
  touch-action: pan-x;
}
.slot.filled { border-color: var(--line); cursor: grab; touch-action: none; }
.slot.selected { background: #1f2a33; }
.slot.cursor { outline: 1px solid var(--fg); outline-offset: -1px; position: relative; z-index: 1; }
.slot.drop { background: #333; outline: 1px dashed var(--fg); outline-offset: -1px; }
/* The tick the run ends on, and slots that never run because of it. */
.slot.end-won { box-shadow: inset 0 -4px 0 var(--won); }
.slot.end-lost { box-shadow: inset 0 -4px 0 var(--enemy); }
.slot.end-timeout { box-shadow: inset 0 -4px 0 var(--muted); }
.slot.after-end { opacity: 0.35; }

/* Ticks the ram or shield is switched on. */
.tl-bands { position: relative; height: 7px; margin-top: 3px; }
.band-ram, .band-shield { position: absolute; top: 0; height: 6px; }
.band-ram { background: var(--ram); }
.band-shield { background: var(--shield); }

/* Where playback is, across ruler, slots and bands. */
.tl-playhead {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  margin-left: -1px;
  background: var(--fg);
  box-shadow: 0 0 4px rgba(255, 255, 255, 0.6);
  pointer-events: none;
  z-index: 2;
}
/* A grab tab on the ruler, so it's clear the playhead can be dragged. The ruler
   underneath takes the pointer. */
.tl-playhead::before {
  content: '';
  position: absolute;
  top: 0;
  left: -6px;
  width: 14px;
  height: 16px;
  background: var(--fg);
  clip-path: polygon(0 0, 100% 0, 100% 60%, 50% 100%, 0 60%);
}

.a-wait { color: var(--muted); }
.a-rot { color: var(--fg); }
.a-thrust { color: var(--thrust); }
.a-fire { color: var(--fg); }
/* The bullet dot is a small glyph: draw it bigger wherever it appears. */
.dot { font-size: 1.5em; line-height: 0.8; }
.slot.a-fire { font-size: 34px; }
.action.a-fire .glyph { font-size: 26px; }
.a-shield { color: var(--shield); }
.a-ram { color: var(--ram); }

/* --- help dialog ------------------------------------------------------------ */

.help {
  max-width: 640px;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--line);
  padding: 20px 24px;
}
.help::backdrop { background: rgba(0, 0, 0, 0.7); }
.help h2 { font-size: 13px; color: var(--fg); }
.help h3 { margin: 14px 0 4px; font-size: 12px; color: var(--muted); font-weight: 600; }
.help p, .help ul { margin: 0 0 6px; color: #c8c8c8; }
.help ul { padding-left: 18px; }

/* --- patch notes dialog ----------------------------------------------------- */

.notes { width: min(560px, calc(100vw - 32px)); }
.notes-list { max-height: 60vh; overflow-y: auto; margin: 0 0 12px; }
.notes-list h3 b { color: var(--fg); }
.notes-list h3:first-child { margin-top: 8px; }

/* --- leaderboard dialog ------------------------------------------------------ */

.board { width: min(860px, calc(100vw - 32px)); max-width: none; }
.board-msg { color: var(--muted); }
.board-msg[hidden] { display: none; }
.board-name[hidden], .board-you[hidden] { display: none; }
.board-name { margin: 0 0 12px; }
.board-name label { display: block; margin-bottom: 4px; color: #c8c8c8; }
.board-name-row { display: flex; gap: 8px; }
.board-name input {
  font: inherit;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 4px 8px;
  min-height: 32px;
  width: 16em;
}
.board-name input:focus { outline: 2px solid var(--fg); outline-offset: 1px; }
.board-name-error { color: var(--enemy); min-height: 1.5em; }
.board-you { color: #c8c8c8; }
button.link { border: none; min-height: 0; padding: 0 4px; color: var(--muted); text-decoration: underline; }
button.link:hover { color: var(--fg); }
.board-count { color: var(--muted); margin: 0 0 10px; }
.board-note { color: var(--muted); margin: -4px 0 10px; }
.board-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-bottom: 14px; }
/* Each table in its score's colour: --metric is read by the histogram too. */
.board-time { --metric: var(--time); --other: var(--cost); }
.board-cost { --metric: var(--cost); --other: var(--time); }
.board-sum { --metric: var(--sum); }
.board-col h3 { margin: 0 0 6px; color: var(--metric); }
.board-chart { display: block; width: 100%; height: 64px; border-bottom: 1px solid var(--line); }
.board-axis { display: flex; justify-content: space-between; color: var(--muted); font-size: 11px; }
.board-rank { margin: 4px 0 8px; color: var(--metric); }
.board table { width: 100%; border-collapse: collapse; }
.board td { padding: 2px 4px; border-top: 1px solid #1c1c1c; }
.board td.rank { color: var(--muted); width: 3.5em; }
.board td.name { overflow-wrap: anywhere; }
.board td.value { text-align: right; }
.board tr.you td { color: var(--metric); }
/* The other score of the run behind a best time or cost, dimmed. */
.board td.also, .board tr.you td.also {
  color: color-mix(in srgb, var(--other) 50%, var(--bg));
  text-align: right;
  width: 3.5em;
  padding-left: 8px;
}


/* --- name fonts and badges (web/looks.js) ------------------------------------- */

/* The fonts achievements unlock (sim/achievements.js), from web/fonts/ (see its
   LICENSE.txt). A browser only downloads one when a name on screen uses it.
   Each is sized so its lower case is as tall as the game's monospace, measured
   from the font files, and a 16-character name is never much wider. */
@font-face { font-family: 'Vector Major Mono Display'; src: url('fonts/founding.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Vector Share Tech Mono'; src: url('fonts/first.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Vector Turret Road'; src: url('fonts/week.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Vector VT323'; src: url('fonts/streak.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Vector Workbench'; src: url('fonts/centurion.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Vector Zen Dots'; src: url('fonts/topten.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Vector Wallpoet'; src: url('fonts/pacifist.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Vector Doto'; src: url('fonts/archivist.woff2') format('woff2'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'Vector Tektur'; src: url('fonts/practice.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Vector Micro 5'; src: url('fonts/triple.woff2') format('woff2'); font-weight: 400; font-display: swap; }

.font-founding { font-family: 'Vector Major Mono Display', var(--font); font-size: 0.79em; font-weight: 400; }
.font-first { font-family: 'Vector Share Tech Mono', var(--font); font-size: 1.09em; font-weight: 400; }
.font-week { font-family: 'Vector Turret Road', var(--font); font-size: 1.14em; font-weight: 500; }
.font-streak { font-family: 'Vector VT323', var(--font); font-size: 1.37em; font-weight: 400; }
.font-centurion { font-family: 'Vector Workbench', var(--font); font-size: 0.89em; font-weight: 400; }
.font-topten { font-family: 'Vector Zen Dots', var(--font); font-size: 1.01em; font-weight: 400; }
.font-pacifist { font-family: 'Vector Wallpoet', var(--font); font-size: 1.08em; font-weight: 400; }
.font-archivist { font-family: 'Vector Doto', var(--font); font-size: 1.05em; font-weight: 700; }
.font-practice { font-family: 'Vector Tektur', var(--font); font-size: 0.98em; font-weight: 500; }
.font-triple { font-family: 'Vector Micro 5', var(--font); font-size: 1.5em; font-weight: 400; }

.badges { display: inline-flex; gap: 2px; margin-left: 5px; vertical-align: -2px; }
.badge { flex: none; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; }
.badge-time { color: var(--time); }
.badge-cost { color: var(--cost); }
.badge-sum { color: var(--sum); }

/* --- pop-ups (web/popup.js): over the game, not stopping it ------------------- */

.popup {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 20;
  width: min(340px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  padding: 14px 16px;
  background: var(--bg);
  border: 1px solid var(--fg);
  box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.7);
}
.popup[hidden] { display: none; }
.popup p { margin: 0 0 6px; }
.popup-kicker { color: var(--won); font-size: 11px; letter-spacing: 0.15em; text-transform: uppercase; }
.popup-item { margin: 0 0 10px; }
.popup-title { font-size: 22px; line-height: 1.25; color: var(--fg); overflow-wrap: anywhere; }
.popup-first { font-size: 15px; display: flex; flex-wrap: wrap; align-items: center; gap: 4px; }
.popup-rule, .popup-hint { color: var(--muted); }
.popup-sample { color: #c8c8c8; font-size: 15px; }
.board-lead { color: var(--fg); }

/* --- narrow screens: stack, and let the page scroll ------------------------------ */

@media (max-width: 900px) {
  .app {
    height: auto;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: none;
    grid-template-areas: 'top' 'score' 'stage' 'edit';
  }
  .top { flex-wrap: wrap; row-gap: 6px; }
  .panel { overflow: visible; }
  /* The score goes above the arena. The rest of the left panel follows the
     timeline in its own order (play, then the actions and edits a tap on a
     slot needs, so they're on screen with it), then the reference. */
  .panel-left { display: contents; }
  .panel-left .score { grid-area: score; }
  .panel-left section { margin-bottom: 0; }
  .panel-right { grid-area: auto; }
  /* The actions in the keyboard's two rows, Q W E / A S D. */
  .palette { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .action { min-height: 44px; justify-content: center; }
  .action .name, .action kbd { display: none; }
  .controls button, .tools button { min-height: 44px; }
  /* Legend and stances side by side when there's room. */
  .panel-right { display: flex; flex-wrap: wrap; column-gap: 32px; }
  .result { padding: 8px; }
  .result-actions { flex-wrap: wrap; justify-content: center; }
  .board-cols { grid-template-columns: minmax(0, 1fr); }
}

/* A phone held sideways: the controls beside the arena and timeline, which
   resize in web/app.js sizes to fit on screen together. */
@media (max-width: 900px) and (orientation: landscape) and (max-height: 540px) {
  .app {
    grid-template-columns: minmax(0, 1fr) minmax(230px, 36%);
    grid-template-areas: 'top top' 'stage left' 'edit left' '. left' 'right right';
    grid-template-rows: auto auto auto 1fr auto;
  }
  .panel-left { display: block; }
  .panel-left section { margin-bottom: 14px; }
  .panel-right { grid-area: right; }
  .metric b { font-size: 24px; }
}

/* --- account dialog ---------------------------------------------------------- */

.account { width: min(460px, calc(100vw - 32px)); }
.account-providers { display: flex; flex-direction: column; gap: 8px; margin: 12px 0 16px; }
.account-providers a {
  display: block;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--fg);
  text-decoration: none;
  text-align: center;
}
.account-providers a:hover { border-color: var(--fg); }
.account-providers a:focus-visible { outline: 2px solid var(--fg); outline-offset: 1px; }
#account-in, #account-in + button { margin-top: 8px; }
#account-none[hidden], #account-out[hidden], #account-in[hidden], #account-named[hidden], #account-unnamed[hidden] { display: none; }
.account-signins { list-style: none; padding: 0; margin: 4px 0 12px; }
.account-signins li { display: flex; align-items: baseline; gap: 10px; min-height: 28px; }
.account-delete { margin: 16px 0 0; }
button.link.danger:hover { color: var(--enemy); }
.account-signins li > span:first-child { min-width: 70px; }
.account-signins .note { color: var(--muted); }
.account-signins a { color: var(--fg); }
/* Vector+: name fonts, badges and achievements. */
.help .account-plus, .help .account-note { color: var(--muted); }
.account-fonts { display: flex; flex-direction: column; gap: 4px; margin: 6px 0 12px; }
.account-fonts label { display: flex; align-items: center; gap: 10px; min-height: 30px; padding: 2px 8px;
  border: 1px solid #1c1c1c; border-radius: 2px; cursor: pointer; }
.account-fonts label:has(input:checked) { border-color: var(--fg); }
.account-fonts label:focus-within { outline: 2px solid var(--fg); outline-offset: 1px; }
.account-fonts input { margin: 0; }
.account-fonts .which { margin-left: auto; color: var(--muted); font-size: 11px; }
.account-fonts.locked label { cursor: default; opacity: 0.6; }
.account-badges { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 6px 0 12px; color: var(--muted); }
.account-badges span { display: inline-flex; align-items: center; gap: 6px; }
.account-badges b { color: var(--fg); font-weight: 400; }
.help .account-achievements { list-style: none; padding: 0; margin: 6px 0 12px; display: grid; gap: 6px; }
.account-achievements li { display: grid; grid-template-columns: 1.2em minmax(0, 1fr); gap: 2px 8px; color: var(--muted); }
.account-achievements li.earned { color: var(--fg); }
.account-achievements .mark { grid-row: span 2; color: var(--won); }
.account-achievements .rule { grid-column: 2; font-size: 12px; color: var(--muted); }

/* --- saves dialog ------------------------------------------------------------ */

.tools .wide { grid-column: 1 / -1; }
.saves { width: min(520px, calc(100vw - 32px)); }
#saves-locked[hidden], #saves-in[hidden], #saves-empty[hidden] { display: none; }
#saves-locked, #saves-in { margin-bottom: 12px; }
.board-msg.error { color: var(--enemy); }
.help .saves-list { list-style: none; padding: 0; margin: 0 0 8px; max-height: 50vh; overflow-y: auto; }
.saves-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 12px;
  padding: 6px 0;
  border-top: 1px solid #1c1c1c;
}
.saves-info { display: flex; flex-direction: column; min-width: 0; }
.saves-info b { overflow-wrap: anywhere; font-weight: 600; }
.saves-info .note { color: var(--muted); font-size: 11px; }
.saves-actions { display: flex; flex-wrap: wrap; }
.saves-rename { display: flex; gap: 8px; align-items: center; width: 100%; }
.saves-rename input, .saves .board-name input {
  font: inherit;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 4px 8px;
  min-height: 32px;
  flex: 1;
  min-width: 0;
}
.saves-rename input:focus { outline: 2px solid var(--fg); outline-offset: 1px; }

/* --- mission library (library.html) -------------------------------------------- */

body.lib { height: auto; }
.lib-top { max-width: 1600px; margin: 0 auto; padding: 10px 14px 0; align-items: baseline; }
.lib-top .nav-link { margin-left: auto; }
.lib-main { max-width: 1600px; margin: 0 auto; padding: 12px 14px 40px; }
.lib-bar { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; margin-bottom: 10px; }
.lib-search {
  font: inherit;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 4px 8px;
  min-height: 32px;
  flex: 1 1 22em;
  max-width: 36em;
}
.lib-search:focus { outline: 2px solid var(--fg); outline-offset: 1px; }
.lib-filters { display: flex; flex-wrap: wrap; gap: 4px; }
.lib-filters button[aria-pressed='true'] { border-color: var(--fg); background: #1f2a33; }
body:not(.premium) .premium-only { display: none; }
.lib-note { color: var(--muted); margin: 0 0 10px; }
.lib-note[hidden] { display: none; }
.lib-note a { color: var(--fg); }
.lib-week { margin: 18px 0 0; }
.lib-week[hidden] { display: none; }
.lib-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 10px;
}
.lib-card { border: 1px solid var(--line); display: flex; flex-direction: column; min-width: 0; }
.lib-card[hidden] { display: none; }
.lib-card:hover, .lib-card:focus-within { border-color: var(--fg); }
.lib-card.today { border-color: var(--won); }
.lib-open { display: flex; flex-direction: column; gap: 2px; padding: 6px 8px 4px; color: var(--fg); text-decoration: none; }
.lib-open:focus-visible { outline: 2px solid var(--fg); outline-offset: -2px; }
.lib-preview { display: block; width: 100%; aspect-ratio: 1; background: var(--bg); margin-bottom: 4px; }
.lib-card.coming { border-style: dashed; color: var(--muted); }
.lib-card.coming:hover { border-color: var(--line); }
.lib-blank {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--line);
  color: var(--muted);
  font-size: 12px;
}
.lib-card.coming .lib-head b { color: var(--muted); }
.lib-head b { color: var(--fg); }
.lib-contents { color: var(--muted); font-size: 12px; }
.lib-foot { display: flex; align-items: center; gap: 6px; padding: 0 4px 4px 8px; margin-top: auto; min-height: 32px; }
.lib-tags { display: flex; flex-wrap: wrap; gap: 4px; flex: 1; font-size: 11px; }
.lib-tags span { border: 1px solid var(--line); padding: 0 4px; }
.lib-tags .tag-today { color: var(--won); border-color: var(--won); }
.lib-tags .tag-cleared { color: var(--won); }
.lib-tags .tag-saves { color: var(--fg); }
.lib-fav { border: none; font-size: 18px; line-height: 1; padding: 4px 6px; color: var(--muted); }
.lib-fav[hidden] { display: none; }
.lib-fav.on { color: var(--thrust); }
.lib-fav:hover { color: var(--fg); }

@media (max-width: 1100px) { .lib-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (max-width: 700px) { .lib-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* --- bug report dialog ---------------------------------------------------------- */

.report { width: min(520px, calc(100vw - 32px)); }
.report-form label { display: block; margin-bottom: 4px; color: #c8c8c8; }
.report-form textarea {
  display: block;
  box-sizing: border-box;
  width: 100%;
  font: inherit;
  font-size: max(1em, 16px); /* iOS zooms into smaller text fields */
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 6px 8px;
  resize: vertical;
}
.report-form textarea:focus { outline: 2px solid var(--fg); outline-offset: 1px; }
.report-count { color: var(--muted); text-align: right; font-size: 11px; margin: 2px 0 8px; }
.report-form .report-check { display: flex; gap: 8px; align-items: baseline; margin-bottom: 8px; }
.report-check[hidden] { display: none; }
.report-sent { width: min(400px, calc(100vw - 32px)); }

/* --- tutorial ------------------------------------------------------------------ */

.tutorial-offer { width: min(460px, calc(100vw - 32px)); }
.tutorial-offer-buttons { display: flex; gap: 8px; margin-top: 14px; }
button.primary { border-color: var(--won); color: var(--won); }

/* The highlight around what a step is about. It never takes clicks, so the
   player can use the highlighted control. With .dim, the rest of the page is
   darkened around it. */
.tour-ring {
  position: fixed;
  z-index: 50;
  border: 2px solid var(--fg);
  border-radius: 4px;
  pointer-events: none;
  transition: left 0.2s, top 0.2s, width 0.2s, height 0.2s;
}
.tour-ring.dim { box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.6); }
.tour-ring[hidden] { display: none; }
.tour-card {
  position: fixed;
  z-index: 51;
  width: min(330px, calc(100vw - 32px));
  background: var(--bg);
  border: 1px solid var(--fg);
  padding: 14px 16px 12px;
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.8);
}
.tour-card.center { left: 50% !important; top: 50% !important; transform: translate(-50%, -50%); }
.tour-count { color: var(--muted); font-size: 11px; letter-spacing: 0.15em; }
.tour-title { margin: 4px 0 6px; font-size: 13px; color: var(--fg); }
.tour-text { margin: 0 0 8px; color: #c8c8c8; }
.tour-hint { margin: 0 0 8px; color: var(--thrust); }
/* The goal step stands out: in the enemies' red, with their pictures. */
.tour-card.goal { width: min(400px, calc(100vw - 32px)); border: 2px solid var(--enemy); }
.tour-card.goal .tour-title { font-size: 16px; color: var(--enemy); letter-spacing: 0.04em; }
.tour-gallery { list-style: none; margin: 0 0 10px; padding: 0; display: grid; gap: 8px; }
.tour-gallery[hidden] { display: none; }
.tour-gallery li { display: grid; grid-template-columns: 44px 1fr; gap: 10px; align-items: center; }
.tour-gallery canvas { width: 44px; height: 44px; border: 1px solid var(--line); }
.tour-gallery b { display: block; color: var(--enemy); }
.tour-gallery span { color: #c8c8c8; font-size: 12px; }
.tour-hint[hidden] { display: none; }
.tour-buttons { display: flex; gap: 8px; align-items: center; justify-content: flex-end; }
.tour-buttons .link { margin-right: auto; }
.tour-buttons button[hidden] { display: none; }

/* The old address's page while it moves the player to the new one (worker/moved.js). */
.moved { max-width: 32em; margin: 20vh auto 0; padding: 0 16px; }
.moved h1 { font-size: 18px; font-weight: normal; letter-spacing: 0.1em; }
.moved a { color: var(--fg); }