/* Free-Wheel Unicycle Skill Quest
   Signature: film-roll over slow plasma;
   text scrolls on top — no card. Newsreader + Syne. */

:root {
  --cosmos: #05060a;
  --film: #3a404c;
  /*
    Gate ≈ inverted plasma under a warm paper wash (process-y 22% into white @ 0.9).
    Bright fills for solid chrome; *-ink for WCAG AA text on the gate.
  */
  --ink: #0a0c10;
  --ink-muted: #2f3a48;
  --process-y: #e8b400;
  --process-y-ink: #6b5000;
  --process-c: #7ec8f2;
  --process-c-ink: #046078;
  --head: var(--process-y-ink);
  --ok: #14663f;
  --focus: var(--process-c-ink);
  --panel-line: rgba(20, 24, 31, 0.22);
  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --display: "Syne", "Avenir Next", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sprocket: 2.85rem;
  --measure: min(40rem, calc(100vw - 2 * var(--sprocket) - 1.5rem));
  --punch-h: 1.55rem;
  --punch-gap: 1.35rem;
  --space-block: 1.75rem;
  --space-head-after: 1.15rem;
  --rail-sticky: 3.35rem;
}

*, *::before, *::after { box-sizing: border-box; }

html { background: var(--cosmos); scroll-behavior: smooth; }

body.fw-quest {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(1rem, 0.92rem + 0.3vw, 1.12rem);
  line-height: 1.55;
  background: var(--cosmos);
}

.page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  padding-bottom: 7.5rem;
  display: flow-root;
}

.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 200;
  background: var(--process-y);
  color: var(--ink);
  padding: 0.65rem 0.85rem;
  font-family: var(--display);
  font-weight: 600;
  text-decoration: none;
}
.skip-link:focus,
.skip-link:focus-visible {
  left: 0.75rem;
  top: 0.75rem;
  position: fixed;
  outline: 3px solid var(--ink);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

#cosmos-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.film-layer {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.film-strip {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  width: min(calc(var(--measure) + 2 * var(--sprocket)), 100%);
  margin-inline: auto;
}

.film-gate {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--sprocket);
  right: var(--sprocket);
  background: transparent;
  -webkit-backdrop-filter: invert(1) brightness(0.48) contrast(1.05) saturate(1.05);
  backdrop-filter: invert(1) brightness(0.48) contrast(1.05) saturate(1.05);
}
.film-gate::after {
  content: "";
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--process-y) 22%, white);
  opacity: 0.9;
  pointer-events: none;
}

.film-rail {
  position: absolute;
  top: 0;
  bottom: 0;
  width: var(--sprocket);
  margin: 0;
  padding: 0;
  background: var(--film);
  /* Solid rail minus punch shapes = true transparent holes to field */
  -webkit-mask-image:
    linear-gradient(#000 0 0),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 52'%3E%3Crect x='7' y='8' width='26' height='24' rx='5.5' fill='%23000'/%3E%3C/svg%3E");
  -webkit-mask-size: 100% 100%, 100% calc(var(--punch-h) + var(--punch-gap));
  -webkit-mask-repeat: no-repeat, repeat-y;
  -webkit-mask-position: 0 0, center top;
  -webkit-mask-composite: destination-out;
  mask-image:
    linear-gradient(#000 0 0),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 52'%3E%3Crect x='7' y='8' width='26' height='24' rx='5.5' fill='%23000'/%3E%3C/svg%3E");
  mask-size: 100% 100%, 100% calc(var(--punch-h) + var(--punch-gap));
  mask-repeat: no-repeat, repeat-y;
  mask-position: 0 0, center top;
  mask-composite: subtract;
}
.film-rail--left { left: 0; }
.film-rail--right {
  right: 0;
  background: var(--film);
}

.quest-banner {
  position: relative;
  z-index: 2;
  width: var(--measure);
  max-width: 100%;
  margin: 0 auto;
  padding: 2rem 0.75rem 1.5rem;
  border: none;
  background: transparent;
  text-shadow: none;
}
.quest-banner h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2rem, 1.55rem + 1.9vw, 2.85rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
  margin: 0 0 1rem;
  text-wrap: balance;
  color: var(--process-y-ink);
}
.quest-lede {
  margin: 0 0 1rem;
  color: var(--ink-muted);
  text-wrap: pretty;
}
.quest-meta,
.quest-disclaimer {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  margin: 0.55rem 0 0;
}
.quest-meta a {
  color: var(--process-c-ink);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}
.quest-meta a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.rank-rail {
  position: sticky;
  top: 0;
  z-index: 20;
  width: var(--measure);
  max-width: 100%;
  margin: 0 auto var(--space-block);
  background: color-mix(in srgb, var(--process-y) 22%, white);
  backdrop-filter: blur(6px);
  border: none;
  border-bottom: 1px solid var(--panel-line);
}
.rail-inner {
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  width: 100%;
  padding: 0.55rem 0.75rem;
  font-family: var(--display);
  font-size: 0.78rem;
  font-weight: 600;
}
.rail-inner a {
  flex: 0 0 auto;
  color: var(--ink-muted);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 0.15em;
  padding: 0.35rem 0.55rem;
  border: none;
  border-radius: 0;
}
.rail-inner a:hover,
.rail-inner a:focus-visible {
  color: var(--process-c-ink);
  text-decoration-color: var(--process-c-ink);
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  box-shadow: inset 0 -2px 0 var(--process-y-ink);
}
.rail-inner a.is-complete { color: var(--ok); }

main#main {
  position: relative;
  z-index: 2;
  width: var(--measure);
  max-width: 100%;
  margin: 0 auto;
  padding: 0 0.75rem 0;
  background: transparent;
  border: none;
  box-shadow: none;
  text-shadow: none;
}

.charter,
.quest-log {
  scroll-margin-top: calc(var(--rail-sticky) + 0.75rem);
}
.charter {
  padding: 0.5rem 0 1.1rem;
  margin-bottom: var(--space-block);
  border: none;
  background: transparent;
  box-shadow: none;
}
.charter h2 {
  font-family: var(--display);
  font-size: clamp(1.3rem, 1.1rem + 0.6vw, 1.55rem);
  margin: 0 0 var(--space-head-after);
  color: var(--process-y-ink);
}
.charter p {
  margin: 0 0 1.1rem;
  color: var(--ink);
  text-wrap: pretty;
}
.charter ul {
  margin: 0 0 0.5rem;
  padding-left: 1.15rem;
  color: var(--ink);
}
.charter li { margin: 0 0 0.55rem; }

.quest-log {
  margin: 0 0 1.15rem;
  border: none;
  background: transparent;
  box-shadow: none;
}
.quest-log[open] { box-shadow: none; }
.quest-log > summary {
  list-style: none;
  cursor: pointer;
  padding: 1.25rem 0 1.1rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.75rem 0.95rem;
  align-items: start;
  font-family: var(--display);
  border-radius: 0;
}
.quest-log > summary:focus {
  outline: none;
}
.quest-log > summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}
.quest-log > summary::-webkit-details-marker { display: none; }
.seal {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: var(--process-y);
  padding: 0.25rem 0.45rem;
  min-width: 2.6rem;
  text-align: center;
  border-radius: 0;
  text-shadow: none;
}
.quest-log.is-complete .seal {
  background: var(--ok);
  color: #fff;
}
.title-wrap { min-width: 0; }
.title-wrap strong {
  display: block;
  font-size: clamp(1.05rem, 0.95rem + 0.35vw, 1.2rem);
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--ink);
}
.title-wrap span {
  display: block;
  font-family: var(--serif);
  font-size: 0.92rem;
  font-weight: 400;
  color: var(--ink-muted);
  line-height: 1.45;
}
.grade-progress {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
  white-space: nowrap;
}

.quest-body {
  padding: 0.35rem 0 1.5rem;
  border-top: none;
}
.quest-body h3 {
  font-family: var(--display);
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--process-y-ink);
  margin: 1.55rem 0 0.75rem;
}
.task-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.task-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.55rem;
  align-items: start;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--panel-line);
}
.task-list input[type="checkbox"] {
  width: 1.35rem;
  height: 1.35rem;
  min-width: 1.35rem;
  min-height: 1.35rem;
  margin-top: 0.1rem;
  accent-color: var(--process-y-ink);
}
.task-list label {
  cursor: pointer;
  color: var(--ink);
  min-height: 1.35rem;
}
.task-id {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--process-c-ink);
  margin-right: 0.35rem;
}
.note {
  font-size: 0.88rem;
  color: var(--ink-muted);
  margin: 0.75rem 0 0;
}

.dock {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  width: min(calc(var(--measure) + 2 * var(--sprocket)), 100%);
  bottom: 0;
  z-index: 40;
  background: rgba(5, 7, 15, 0.94);
  border-top: 1px solid rgba(232, 180, 0, 0.35);
  padding: 0.65rem 1rem calc(0.65rem + env(safe-area-inset-bottom));
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.55rem 1rem;
  align-items: center;
  font-family: var(--display);
  color: #e8eef4;
}
.dock-meta {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: #a8b8cc;
}
.dock-grade {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
  color: var(--process-y);
}
.dock-bar {
  height: 4px;
  background: rgba(138, 155, 176, 0.22);
  border-radius: 0;
  overflow: hidden;
  margin-top: 0.35rem;
  max-width: 16rem;
}
.dock-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--process-y), var(--process-c));
  transition: width 0.25s ease;
}
.dock-actions {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.dock-actions button {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.8rem;
  border: 1px solid var(--process-y);
  background: transparent;
  color: #e8eef4;
  padding: 0.55rem 0.85rem;
  min-height: 2.75rem;
  cursor: pointer;
  border-radius: 0;
}
.dock-actions button.primary {
  background: var(--process-y);
  color: var(--ink);
}
.dock-actions button:disabled,
.dock-actions button[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
}
.dock-actions button:focus-visible {
  outline: 2px solid var(--process-c);
  outline-offset: 2px;
}

.modal[hidden] { display: none !important; }
.modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(0, 0, 0, 0.72);
  display: grid;
  place-items: center;
  padding: 1rem;
}
.dock-grade:focus {
  outline: none;
}
.dock-grade:focus-visible {
  outline: 2px solid var(--process-c);
  outline-offset: 2px;
}

.cert-dialog {
  width: min(40rem, 100%);
  max-height: min(92vh, 56rem);
  overflow: auto;
  background: #f3ebe0;
  color: #1a1612;
  border: none;
  padding: 1rem;
}
.cert-dialog:focus {
  outline: none;
}
.cert-dialog h2 {
  font-family: var(--display);
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
}
.cert-fields {
  display: grid;
  gap: 0.55rem;
  margin-bottom: 0.85rem;
}
.cert-fields label {
  display: grid;
  gap: 0.25rem;
  font-family: var(--display);
  font-size: 0.78rem;
  font-weight: 600;
}
.cert-fields input,
.cert-fields textarea {
  font-family: var(--serif);
  font-size: 1rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid #cbbba8;
  background: #fffaf4;
  color: #1a1612;
}
.cert-formats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}
.cert-format-option {
  font-family: var(--mono);
  font-size: 0.7rem;
  border: 1px solid #cbbba8;
  padding: 0.3rem 0.45rem;
  cursor: pointer;
}
.cert-format-option.is-selected {
  border-color: var(--process-y-ink);
  background: color-mix(in srgb, var(--process-y) 18%, transparent);
}
.cert-format-option input { margin-right: 0.25rem; }
#certificate {
  width: 100%;
  background: #fffaf4;
  border: 1px solid #d9cbb8;
  margin-bottom: 0.75rem;
}
#cert-canvas {
  display: block;
  width: 100%;
  height: auto;
}
.cert-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.cert-actions button {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.8rem;
  border: 1px solid #1a1612;
  background: transparent;
  color: #1a1612;
  padding: 0.45rem 0.7rem;
  cursor: pointer;
}
.cert-actions button.primary {
  background: #1a1612;
  color: #f3ebe0;
}
.cert-actions button:focus-visible {
  outline: 2px solid #046078;
  outline-offset: 2px;
}

@media (max-width: 640px) {
  :root {
    --sprocket: 1.85rem;
    --punch-h: 1.15rem;
    --punch-gap: 1rem;
  }
  .quest-banner { padding: 1.35rem 0.5rem 1.25rem; }
  main#main { padding: 0 0.5rem; }
  .quest-log > summary {
    grid-template-columns: auto 1fr;
  }
  .grade-progress { grid-column: 2; }
  .dock { grid-template-columns: 1fr; }
  .dock-actions { justify-content: stretch; }
  .dock-actions button { flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .film-gate {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: #c8d0dc;
  }
  .film-gate::after { display: none; }
  .dock-fill { transition: none; }
}

@media (prefers-reduced-transparency: reduce) {
  .film-gate {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: #d8dee8;
  }
  .film-gate::after { display: none; }
  .rank-rail {
    background: #f2f4f7;
    backdrop-filter: none;
  }
}

@media (prefers-contrast: high) {
  :root {
    --ink: #000;
    --ink-muted: #1a1a1a;
    --process-y: #c90;
    --process-y-ink: #5a4500;
    --process-c: #08c;
    --process-c-ink: #004d66;
    --ok: #0a4d2e;
    --focus: #004d66;
  }
  .film-gate {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: #e8eef4;
  }
  .film-gate::after { display: none; }
  .rank-rail { background: #fff; }
}