/* Position Quest — blueprint drafting theme */
:root {
  --bg: #0d2137;
  --bg-2: #10294a;
  --line: rgba(122, 167, 210, 0.18);
  --grid: rgba(122, 167, 210, 0.10);
  --ink: #dce9f7;
  --ink-dim: #8fa9c4;
  --amber: #ffc94d;
  --cyan: #7fd1ff;
  --red: #ff6b6b;
  --font-display: "Archivo Black", system-ui, sans-serif;
  --font-body: "Space Grotesk", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

.skip-link {
  position: fixed;
  left: 12px;
  top: 12px;
  z-index: 100;
  transform: translateY(-180%);
  padding: 8px 12px;
  background: var(--amber);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}
.skip-link:focus { transform: translateY(0); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px) 0 -1px / 28px 28px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) -1px 0 / 28px 28px,
    var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.55;
}

/* ---------- sheet head ---------- */
.sheet-head {
  max-width: 1120px;
  margin: 0 auto;
  padding: 40px 24px 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: flex-end;
  justify-content: space-between;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin: 0 0 6px;
}
h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 6vw, 56px);
  letter-spacing: 0.01em;
  margin: 0;
  line-height: 1;
}
h1::after {
  content: "";
  display: block;
  width: 72px;
  height: 6px;
  margin-top: 10px;
  background: var(--amber);
}
.sub { max-width: 52ch; color: var(--ink-dim); margin: 12px 0 0; }
.sub code, .brief code, .cheat code, .hint code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  color: var(--cyan);
  background: rgba(127, 209, 255, 0.08);
  padding: 1px 5px;
  border-radius: 3px;
}
.titleblock {
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: auto auto;
  font-family: var(--font-mono);
  font-size: 12px;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.25);
}
.titleblock span {
  padding: 6px 10px;
  color: var(--ink-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-top: 1px solid var(--line);
}
.titleblock span:first-child, .titleblock span:nth-child(2) { border-top: 0; }
.titleblock b {
  padding: 6px 12px;
  font-weight: 700;
  color: var(--amber);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.titleblock b:first-of-type, .titleblock b:nth-of-type(2) { border-top: 0; }

/* ---------- layout ---------- */
main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}
.progress-strip {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto auto minmax(120px, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  border-block: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
}
.progress-label { color: var(--ink-dim); text-transform: uppercase; letter-spacing: .08em; }
.progress-strip strong { color: var(--amber); white-space: nowrap; }
.progress-track { height: 6px; background: rgba(122, 167, 210, .16); }
#progress-fill {
  display: block;
  width: 0;
  height: 100%;
  background: var(--amber);
  transition: width .35s ease-out;
}
.progress-best { color: var(--cyan); white-space: nowrap; }
@media (max-width: 900px) {
  main { grid-template-columns: 1fr; }
}

/* ---------- board ---------- */
.hud { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.hud h2 {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0;
  color: var(--amber);
}
.meter {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-dim);
  border: 1px solid var(--line);
  padding: 3px 10px;
  white-space: nowrap;
}
.meter.hot { color: var(--amber); border-color: var(--amber); }
.brief { color: var(--ink-dim); min-height: 3.1em; margin: 8px 0 14px; max-width: 64ch; }

.board {
  position: relative;
  height: 440px;
  border: 1px solid var(--line);
  background:
    linear-gradient(var(--grid) 1px, transparent 1px) 0 -1px / 28px 28px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) -1px 0 / 28px 28px,
    var(--bg-2);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.25);
  padding: 16px;
}
.board::before, .board::after {
  content: "+";
  position: absolute;
  font-family: var(--font-mono);
  color: var(--line);
  font-size: 16px;
}
.board::before { top: 4px; left: 8px; }
.board::after { bottom: 4px; right: 8px; }

#deco { display: contents; }

/* crates & deco */
.crate {
  position: absolute;
  border: 2px solid var(--ink-dim);
  background:
    repeating-linear-gradient(45deg, transparent 0 6px, rgba(143, 169, 196, 0.22) 6px 8px),
    var(--bg);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-dim);
}
.flow-crate {
  width: 52px;
  height: 52px;
  margin: 20px 0 0 26%;
  position: static;
}

/* hero */
#hero {
  width: 52px;
  height: 52px;
  border: 2px solid var(--cyan);
  background:
    linear-gradient(var(--cyan), var(--cyan)) center / 100% 1px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) center / 1px 100% no-repeat,
    rgba(127, 209, 255, 0.16);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--cyan);
  z-index: 1;
}

/* target */
#target {
  position: absolute;
  width: 52px;
  height: 52px;
  border: 2px dashed var(--amber);
  display: grid;
  place-items: center;
  z-index: 0;
}
#target::before {
  content: "";
  width: 18px;
  height: 18px;
  background: var(--amber);
  transform: rotate(45deg);
  animation: pulse 1.6s ease-in-out infinite;
}
#target .tag {
  position: absolute;
  top: -22px;
  left: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--amber);
  white-space: nowrap;
}
#target.near {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(127, 209, 255, 0.25), 0 0 18px rgba(255, 201, 77, 0.45);
}
#target.near .tag { color: var(--cyan); }
@keyframes pulse {
  0%, 100% { transform: rotate(45deg) scale(1); opacity: 1; }
  50% { transform: rotate(45deg) scale(0.72); opacity: 0.6; }
}

/* win banner — compact strip so the final overlap stays visible */
.win[hidden] { display: none; }
.win {
  position: absolute;
  left: -1px;
  right: -1px;
  bottom: -1px;
  z-index: 40;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 18px;
  padding: 12px 18px;
  background: linear-gradient(rgba(13, 33, 55, 0.94), rgba(13, 33, 55, 0.88));
  border-top: 2px solid var(--amber);
}
.win-big {
  font-family: var(--font-display);
  font-size: clamp(18px, 3vw, 26px);
  color: var(--amber);
  margin: 0;
}
.win-sub { color: var(--ink-dim); margin: 0; font-size: 14px; }
.win-stats {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}
.win .btn-amber { margin-left: auto; }

/* confetti */
#confetti { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 50; }
#confetti i {
  position: absolute;
  top: -14px;
  width: 8px;
  height: 14px;
  animation: fall 1.6s linear forwards;
}
@keyframes fall {
  to { transform: translateY(500px) rotate(540deg); opacity: 0; }
}

/* ---------- level chips ---------- */
.level-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.chip {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  min-width: 40px;
  padding: 7px 10px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-dim);
  cursor: pointer;
}
.chip:hover:not(:disabled) { border-color: var(--cyan); color: var(--cyan); }
.chip.current { border-color: var(--cyan); color: var(--bg); background: var(--cyan); }
.chip.done { border-color: var(--amber); color: var(--amber); }
.chip:disabled { opacity: 0.35; cursor: not-allowed; }

/* ---------- tools ---------- */
.tools { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.btn {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  padding: 10px 16px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, transform 0.05s;
}
.btn:hover { border-color: var(--amber); color: var(--amber); }
.btn:active { transform: translateY(1px); }
.btn-amber { background: var(--amber); border-color: var(--amber); color: var(--bg); }
.btn-amber:hover { background: #ffd97e; color: var(--bg); }
.btn-danger { color: var(--red); }
.btn-danger:hover { border-color: var(--red); color: var(--red); }

.hint {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  border-left: 3px solid var(--cyan);
  padding: 6px 12px;
  margin: 14px 0 0;
  white-space: pre-wrap;
}

/* ---------- editor ---------- */
.editor-col { position: sticky; top: 24px; }
.ed-label {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-dim);
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}
.ed-scope { font-weight: 400; color: var(--cyan); }
#editor {
  width: 100%;
  height: 340px;
  resize: vertical;
  background: #0a1a2c;
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.25);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  padding: 16px;
  outline: none;
  tab-size: 2;
}
#editor:focus { border-color: var(--cyan); }
.ed-note { font-size: 13px; color: var(--ink-dim); margin: 10px 0 0; }

/* ---------- cheat sheet ---------- */
.cheat {
  max-width: 620px;
  width: calc(100vw - 48px);
  border: 1px solid var(--line);
  background: var(--bg-2);
  color: var(--ink);
  font-family: var(--font-body);
  padding: 28px;
  box-shadow: 12px 12px 0 rgba(0, 0, 0, 0.3);
}
.cheat::backdrop { background: rgba(5, 14, 24, 0.7); }
.cheat h2 { font-family: var(--font-display); font-size: 22px; margin: 0 0 14px; }
.cheat dt { font-family: var(--font-mono); font-weight: 700; color: var(--amber); margin-top: 14px; }
.cheat dd { margin: 2px 0 0; color: var(--ink-dim); font-size: 14px; }

/* ---------- a11y & motion ---------- */
:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  #target::before, #confetti i { animation: none !important; }
}

@media (max-width: 700px) {
  .win { gap: 4px 12px; padding: 10px 14px; }
}

@media (max-width: 900px) {
  .board { height: 340px; }
  .editor-col { position: static; }
  #editor { height: 240px; }
  .progress-strip { grid-template-columns: 1fr auto; }
  .progress-label { grid-column: 1 / 2; }
  .progress-track { grid-column: 1 / -1; grid-row: 2; }
  .progress-best { grid-column: 2; grid-row: 1; }
}