/* A-MAZE-ING CHALLENGE — visualizer UI shell
 * Design tokens are BINDING (docs/superpowers/plans/2026-07-10-amazeing-phase4.5-visualizer.md,
 * "Design tokens (frontend-design)" section). No webfonts, no external
 * requests of any kind — this stylesheet is entirely self-contained.
 */

:root {
  --bg: #060913;
  --panel: #0a1120;
  --grid: #12324a;
  --text: #c9e7f2;
  --dim: #5d7f91;
  --alert: #ff3b30;

  --hue-0: #00e5ff; /* cyan */
  --hue-1: #ff7a1a; /* ember */
  --hue-2: #ff2fd6; /* magenta */
  --hue-3: #3dff8b; /* green */
  --hue-4: #ffd21f; /* gold */
  --hue-5: #9d6bff; /* violet */

  --mono: ui-monospace, "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;

  --dur-slide: 420ms;
  --dur-fade: 500ms;
  --dur-tick: 120ms;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --dur-slide: 1ms;
    --dur-fade: 1ms;
    --dur-tick: 1ms;
  }
  #bg-video {
    display: none;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  color: var(--text);
  font-family: var(--mono);
  min-height: 100%;
}

/* The page background lives on <html> ONLY. It propagates to the canvas,
 * which paints below everything — including the negative-z-index cards-page
 * background video. A background on <body> itself paints in the in-flow
 * layer, OVER negative-z-index children, and would hide the video
 * entirely (CSS 2.1 Appendix E painting order). */
html {
  background: var(--bg);
}

body {
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ------------------------------------------------------------------ */
/* Cards-page background video                                         */
/* ------------------------------------------------------------------ */

#bg-video {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5; /* TJ-tunable: the one knob for background intensity */
  pointer-events: none;
  z-index: -1; /* above the <html> canvas background, below all content */
}

#bg-video.bg-video-hidden {
  display: none;
}

.display {
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

/* ------------------------------------------------------------------ */
/* Reconnect banner                                                    */
/* ------------------------------------------------------------------ */

#banner {
  display: none;
  padding: 0.4em 1em;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  text-align: center;
  color: var(--bg);
  background: var(--alert);
}

#banner.visible {
  display: block;
}

@keyframes banner-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.72;
  }
}

#banner.visible {
  animation: banner-pulse 1.6s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  #banner.visible {
    animation: none;
  }
}

/* ------------------------------------------------------------------ */
/* Header chrome                                                       */
/* ------------------------------------------------------------------ */

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1em;
  padding: 0.9em 1.2em;
  border-bottom: 1px solid var(--grid);
  background: var(--panel);
  flex-wrap: wrap;
}

header h1 {
  margin: 0;
  font-size: 1rem;
  color: var(--text);
}

.credits {
  margin-top: 0.35em;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: var(--dim);
}

.header-status {
  display: flex;
  align-items: center;
  gap: 1.2em;
  font-size: 0.75rem;
  color: var(--dim);
}

#session-count {
  color: var(--text);
}

.health {
  display: flex;
  align-items: center;
  gap: 0.5em;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.health-dot {
  width: 0.6em;
  height: 0.6em;
  border-radius: 50%;
  background: var(--dim);
  box-shadow: 0 0 0.4em currentColor;
  flex: none;
}

.health-dot.ok {
  background: var(--hue-3);
  color: var(--hue-3);
}

.health-dot.demo {
  background: var(--hue-4);
  color: var(--hue-4);
}

.health-dot.err {
  background: var(--alert);
  color: var(--alert);
}

/* ------------------------------------------------------------------ */
/* Sort control (viz-cards-update): header segmented control choosing   */
/* card order — HANDLE (default) / DURATION / FASTEST / PROGRESS.       */
/* ------------------------------------------------------------------ */

.sort-control {
  display: flex;
  gap: 0.35em;
  flex-wrap: wrap;
}

.sort-btn {
  border: 1px solid var(--grid);
  border-radius: 4px;
  background: var(--panel);
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.3em 0.6em;
  cursor: pointer;
}

.sort-btn:hover {
  color: var(--text);
  border-color: var(--text);
}

.sort-btn:focus-visible {
  outline: 2px solid var(--hue-0);
  outline-offset: 2px;
}

.sort-btn[aria-pressed="true"] {
  color: var(--hue-0);
  border-color: var(--hue-0);
}

/* ------------------------------------------------------------------ */
/* Handle filter (2026-07-19): toolbar text input next to the sort     */
/* control. Matching happens in app.js; non-matching cards get         */
/* .filter-hidden. Nothing is persisted.                               */
/* ------------------------------------------------------------------ */

.filter-control {
  display: flex;
  align-items: center;
  gap: 0.5em;
}

.filter-input {
  border: 1px solid var(--grid);
  border-radius: 4px;
  background: var(--panel);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.3em 0.6em;
  width: 11em;
}

.filter-input::placeholder {
  color: var(--dim);
  opacity: 1;
}

.filter-input:focus-visible {
  outline: 2px solid var(--hue-0);
  outline-offset: 2px;
}

.filter-count {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--dim);
  white-space: nowrap;
}

.card.filter-hidden {
  display: none;
}

/* ------------------------------------------------------------------ */
/* Main / routes                                                       */
/* ------------------------------------------------------------------ */

main {
  flex: 1;
  padding: 1.2em;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

/* ------------------------------------------------------------------ */
/* Empty state                                                         */
/* ------------------------------------------------------------------ */

#empty-state {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 4em 1em;
  text-align: center;
  color: var(--dim);
}

#empty-state.visible {
  display: flex;
}

#empty-state .headline {
  color: var(--text);
  font-size: 1.1rem;
}

.hint {
  color: var(--dim);
  font-size: 0.8rem;
}

.hint code {
  font-family: inherit;
  color: var(--text);
}

/* ------------------------------------------------------------------ */
/* Cards grid                                                          */
/* ------------------------------------------------------------------ */

#cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1em;
}

.card {
  position: relative;
  display: block;
  /* Per-hue theming (2026-07-19): the border, internal separator lines
     (--card-line) and panel background all derive from the card's own
     handle hue (--card-hue, stamped per element by app.js) — mixed hard
     toward the page background so the tint aids eye-tracking without
     costing legibility. Requires color-mix (everywhere since 2023). */
  --card-line: color-mix(in srgb, var(--card-hue, var(--hue-0)) 34%, var(--bg));
  border: 1px solid var(--card-line);
  background: color-mix(in srgb, var(--card-hue, var(--hue-0)) 9%, var(--bg));
  border-radius: 6px;
  padding: 0.8em 0.9em;
  transition: transform var(--dur-tick) ease, opacity var(--dur-fade) ease,
    filter var(--dur-fade) ease;
}

.card:hover {
  transform: translateY(-1px);
}

.card:focus-visible {
  outline: 2px solid var(--card-hue, var(--text));
  outline-offset: 2px;
}

.card.card-enter {
  animation: card-slide-in var(--dur-slide) ease-out;
}

@keyframes card-slide-in {
  from {
    transform: translateY(-12px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.card.terminal {
  filter: grayscale(1) brightness(0.75);
  opacity: 0.4;
}

.card.leaving {
  opacity: 0;
  transform: translateY(6px);
}

.card-top {
  display: flex;
  align-items: center;
  gap: 0.5em;
  margin-bottom: 0.7em;
}

.hue-chip {
  width: 0.7em;
  height: 0.7em;
  border-radius: 50%;
  background: var(--card-hue, var(--text));
  box-shadow: 0 0 0.5em var(--card-hue, transparent);
  flex: none;
}

.handle {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.85rem;
  color: var(--card-hue, var(--text));
}

.state-tag {
  font-size: 0.65rem;
  padding: 0.15em 0.5em;
  border: 1px solid currentColor;
  border-radius: 3px;
  white-space: nowrap;
}

.state-tag.completed {
  color: var(--hue-3);
}

.state-tag.dropped {
  color: var(--alert);
}

.state-tag.signal_lost {
  color: var(--dim);
}

.card-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.4em;
  text-align: center;
  margin-bottom: 0.7em;
}

.stat .stat-value {
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 1.3rem;
  color: var(--text);
}

/* Card micro-motion (Task 5): a ~120ms highlight on stat change, driven by
   JS add/remove of this class (app.js's tickStat) rather than a bare
   transition — a transition alone never returns to scale(1) once the
   target class is added and left on. */
.stat .stat-value.tick {
  animation: stat-tick var(--dur-tick) ease-out;
}

@keyframes stat-tick {
  0% {
    transform: scale(1.22);
  }
  100% {
    transform: scale(1);
  }
}

.stat .stat-label {
  font-size: 0.6rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.card-foot {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--dim);
  border-top: 1px solid var(--card-line, var(--grid));
  padding-top: 0.5em;
}

/* ------------------------------------------------------------------ */
/* Card detail sub-section (viz-cards-update): AVG/LAYER, AVG/CUBE,     */
/* ATTEMPTS — a quiet row below the main stats, deliberately smaller/   */
/* dimmer so it doesn't compete with cube/layer/moves-per-sec. Distinct */
/* classes (not .stat/.stat-value/.stat-label) so this styling never    */
/* has to out-specificity the main stats rules above.                   */
/* ------------------------------------------------------------------ */

.card-detail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.3em;
  text-align: center;
  margin-bottom: 0.6em;
  padding-top: 0.5em;
  border-top: 1px solid var(--card-line, var(--grid));
}

.detail-stat-value {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.8rem;
  color: var(--dim);
}

.detail-stat-label {
  font-size: 0.55rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.75;
}

/* ------------------------------------------------------------------ */
/* Detail view: isometric ghost-stack renderer (Task 4)                */
/* ------------------------------------------------------------------ */

.back-link {
  display: inline-block;
  margin-bottom: 1em;
  color: var(--dim);
  font-size: 0.8rem;
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--text);
}

.detail-handle {
  font-size: 1.1rem;
  margin: 0 0 0.8em 0;
}

/* Canvas (left/main) + HUD (right) side by side; HUD stacks below the
   canvas under 720px per the plan's responsive floor. */
.detail-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 1.2em;
  align-items: start;
}

@media (max-width: 720px) {
  .detail-layout {
    grid-template-columns: 1fr;
  }
}

.detail-canvas-wrap {
  position: relative;
  /* Per-hue theming (2026-07-20): the map module inherits its session's
     card color schema — --card-hue is stamped on .detail-layout by
     app.js. The BACKGROUND here is only the pre-first-frame fallback:
     drawDetailFrame keeps it synced to the canvas's per-cube tint so
     module and map read as one seamless surface. */
  --card-line: color-mix(in srgb, var(--card-hue, var(--hue-0)) 34%, var(--bg));
  border: 1px solid var(--card-line);
  background: color-mix(in srgb, var(--card-hue, var(--hue-0)) 9%, var(--bg));
  border-radius: 6px;
  padding: 1em 1.2em;
  min-width: 0;
}

.detail-canvas {
  display: block;
  width: 100%;
  border-radius: 4px;
  background: var(--bg);
  cursor: grab;
  /* Single-finger drag is handled entirely via pointer events (Task 3
     pan); prevent the browser's own touch-scroll/pinch-zoom from
     competing with it. */
  touch-action: none;
}

.detail-canvas.panning {
  cursor: grabbing;
}

/* Task 3: on-screen zoom controls, positioned over the canvas's own
   corner (inside the padded .detail-canvas-wrap, which is why it needs
   position: relative above) for touch/no-wheel displays. --card-hue is
   set on this container from the session's own hue (same custom property
   `.card:focus-visible` already uses) so hover/focus rings match. */
.zoom-controls {
  position: absolute;
  top: 1.5em;
  right: 1.6em;
  display: flex;
  flex-direction: column;
  gap: 0.35em;
  z-index: 1;
}

.zoom-btn {
  width: 1.9em;
  height: 1.9em;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid color-mix(in srgb, var(--card-hue, var(--hue-0)) 34%, var(--bg));
  border-radius: 4px;
  background: color-mix(in srgb, var(--card-hue, var(--hue-0)) 12%, var(--bg));
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.95rem;
  line-height: 1;
  cursor: pointer;
}

.zoom-btn:hover {
  border-color: var(--card-hue, var(--text));
  color: var(--card-hue, var(--text));
}

.zoom-btn:focus-visible {
  outline: 2px solid var(--card-hue, var(--text));
  outline-offset: 2px;
}

.detail-hud {
  --card-line: color-mix(in srgb, var(--card-hue, var(--hue-0)) 34%, var(--bg));
  border: 1px solid var(--card-line);
  background: color-mix(in srgb, var(--card-hue, var(--hue-0)) 9%, var(--bg));
  border-radius: 6px;
  padding: 1em 1.2em;
  display: flex;
  flex-direction: column;
  gap: 0.8em;
}

.hud-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35em;
  font-size: 0.85rem;
}

.hud-list li {
  display: flex;
  justify-content: space-between;
  gap: 1em;
  border-bottom: 1px solid var(--card-line, var(--grid));
  padding-bottom: 0.35em;
}

.hud-list .hud-label {
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.7rem;
}

/* Detail HUD micro-motion (Task 5): the layer counter ticks on layer-up;
   the cube counter rolls old->new on a cube-teleport. */
.hud-value.tick {
  display: inline-block;
  animation: stat-tick var(--dur-tick) ease-out;
}

.hud-value.roll {
  display: inline-block;
  animation: hud-roll var(--dur-slide) ease-out;
}

@keyframes hud-roll {
  0% {
    transform: translateY(-60%);
    opacity: 0;
  }
  60% {
    transform: translateY(8%);
    opacity: 1;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

.hud-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3em;
  justify-content: flex-end;
}

/* Compass HUD line (Phase 6.5 Task 5): dim value so it doesn't compete
   with the more actionable stats above it -- the label is already dim via
   .hud-label. */
.hud-value.hud-dim {
  color: var(--dim);
}

.tool-tag {
  font-size: 0.75rem;
  color: var(--text);
  border: 1px solid var(--grid);
  border-radius: 3px;
  padding: 0.05em 0.35em;
}

.detail-state-tag {
  align-self: flex-start;
  font-size: 0.7rem;
  padding: 0.2em 0.6em;
  border: 1px solid currentColor;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.detail-state-tag.live {
  color: var(--hue-0);
}

.detail-state-tag.completed {
  color: var(--hue-3);
}

.detail-state-tag.dropped {
  color: var(--alert);
}

.detail-state-tag.signal_lost {
  color: var(--dim);
}

.not-found {
  color: var(--alert);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

/* ------------------------------------------------------------------ */
/* Responsive floor: ~360px stacks single-column                       */
/* ------------------------------------------------------------------ */

@media (max-width: 420px) {
  #cards-grid {
    grid-template-columns: 1fr;
  }

  header {
    flex-direction: column;
    align-items: flex-start;
  }

  .card-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.25em;
  }

  .stat .stat-value {
    font-size: 1.05rem;
  }
}

/* ------------------------------------------------------------------ */
/* Leaderboard view (2026-07-19): #cards-grid.board flattens the SAME  */
/* card elements into dense single rows — no separate DOM, so sort/    */
/* filter/tick/sense/removal behavior is identical in both views. Rank */
/* numbers are a CSS counter; .filter-hidden rows are display:none and */
/* therefore neither render nor increment it.                          */
/* ------------------------------------------------------------------ */

#cards-grid.board {
  display: block;
  counter-reset: boardrank;
}

#cards-grid.board .card {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5em 1.1em;
  counter-increment: boardrank;
  padding: 0.35em 0.9em;
  margin-bottom: 0.4em;
  border-radius: 4px;
}

#cards-grid.board .card::before {
  content: counter(boardrank);
  min-width: 1.8em;
  text-align: right;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.8em;
}

#cards-grid.board .card-top {
  margin-bottom: 0;
  flex: 1 1 11em;
  min-width: 9em;
}

#cards-grid.board .card-stats,
#cards-grid.board .card-detail {
  display: flex;
  gap: 1.1em;
  margin: 0;
  border: none;
  padding: 0;
  flex: 0 0 auto;
}

#cards-grid.board .stat,
#cards-grid.board .detail-stat {
  display: flex;
  align-items: baseline;
  gap: 0.35em;
  text-align: left;
}

/* Value first, tiny label after — a self-labeling dense row. */
#cards-grid.board .stat .stat-value {
  font-size: 0.95em;
}

#cards-grid.board .stat .stat-label,
#cards-grid.board .detail-stat .detail-stat-label {
  font-size: 0.58em;
}

#cards-grid.board .card-foot {
  margin: 0;
  border: none;
  padding: 0;
  display: flex;
  gap: 0.9em;
  flex: 0 0 auto;
}

/* ------------------------------------------------------------------ */
/* Tool carrier (2026-07-19, v2): holding a tool lights the card's own */
/* hue up NEON — full-strength border plus a 1px ring (the "+1px       */
/* wider" border with no layout shift) and a soft glow; the internal   */
/* separator lines brighten with it. Non-carriers keep the muted-hue   */
/* border from .card above. Terminal dimming still stacks on top.      */
/* ------------------------------------------------------------------ */

.card.tool-carrier {
  border-color: var(--card-hue, var(--hue-3));
  box-shadow: 0 0 0 1px var(--card-hue, var(--hue-3)),
    0 0 10px color-mix(in srgb, var(--card-hue, var(--hue-3)) 45%, transparent);
  --card-line: color-mix(in srgb, var(--card-hue, var(--hue-0)) 60%, var(--bg));
}

/* ------------------------------------------------------------------ */
/* FLIP re-sort slide (2026-07-19): a card whose list position changed */
/* is offset back to its old spot with transition disabled             */
/* (.card-slide-prep), then released to identity under .card-sliding.  */
/* Transform-only — never triggers layout during the animation.        */
/* ------------------------------------------------------------------ */

.card.card-slide-prep {
  transition: none;
}

.card.card-sliding {
  transition: transform var(--dur-slide) ease;
}
