:root {
  --bg: #050806;
  --panel: #0c1510;
  --line: #1d3a28;
  --ink: #d7ffe4;
  --dim: #6f9a7c;
  --green: #3dff8a;
  --warn: #ffd166;
  --bad: #ff6b6b;
  --sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; min-height: 100dvh; }
body {
  color: var(--ink);
  font-family: var(--sans);
  background: var(--bg);
  overflow-x: hidden;
}
[hidden] { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
code { font-family: var(--mono); color: var(--green); }

.scan {
  pointer-events: none;
  position: fixed; inset: 0;
  background:
    repeating-linear-gradient(180deg, rgba(61, 255, 138, 0.03) 0 2px, transparent 2px 4px);
  mix-blend-mode: screen;
  z-index: 50;
}

.screen {
  min-height: 100dvh;
  padding: max(1.1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right))
    max(1.4rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
}
.title, .end {
  display: grid;
  align-content: center;
  max-width: 42rem;
  margin: 0 auto;
}
.eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
}
h1 {
  margin: 0.35rem 0 0;
  font-family: var(--mono);
  font-size: clamp(4.2rem, 18vw, 7.5rem);
  line-height: 0.85;
  letter-spacing: 0.12em;
  color: var(--green);
  text-shadow: 0 0 24px rgba(61, 255, 138, 0.35);
}
h2 { margin: 0.2rem 0 0.55rem; font-size: clamp(1.35rem, 4vw, 1.8rem); }
.lead { color: var(--dim); line-height: 1.5; max-width: 42ch; }
.rules {
  margin: 1.2rem 0 0;
  padding: 0 0 0 1.1rem;
  color: var(--ink);
  line-height: 1.55;
}
.title-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.4rem; }

.cta, .ghost, .sol, .choice, .linkish {
  appearance: none;
  font: inherit;
  cursor: pointer;
  border-radius: 8px;
  min-height: 44px;
  padding: 0.55rem 1rem;
  text-decoration: none;
}
.cta {
  border: 1px solid var(--green);
  background: var(--green);
  color: #04150a;
  font-weight: 700;
}
.cta.small { min-height: 42px; }
.ghost, .linkish {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  display: inline-grid;
  place-items: center;
}
.sol {
  border: 1px solid var(--warn);
  background: transparent;
  color: var(--warn);
  font-weight: 650;
}
.back {
  display: inline-block;
  margin-top: 1.2rem;
  color: var(--dim);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.85rem;
}

.play {
  display: grid;
  grid-template-rows: auto auto 1fr auto auto;
  gap: 0.7rem;
  max-width: 1100px;
  margin: 0 auto;
  min-height: 100dvh;
}
.top {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.top .back { margin: 0; }
.prog {
  flex: 1;
  margin: 0;
  font-family: var(--mono);
  letter-spacing: 0.14em;
  color: var(--green);
}

.map {
  display: grid;
  gap: 0.65rem;
}
.map-block { min-width: 0; }
.map-lab {
  margin: 0 0 0.28rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
}
.map-grid {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 0.3rem;
}
.map-grid button {
  appearance: none;
  border: 1px solid var(--line);
  background: #08110c;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.72rem;
  min-height: 36px;
  border-radius: 6px;
  cursor: pointer;
}
.map-grid button.on { border-color: var(--green); color: var(--green); }
.map-grid button.ok { background: #12351f; color: var(--green); }
.map-grid button.help { background: #2a2610; color: var(--warn); }
.map-grid button:disabled { opacity: 0.4; cursor: not-allowed; }

.board {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.95fr);
  gap: 0.75rem;
  min-height: 0;
}
.brief, .term-wrap {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  min-width: 0;
}
.brief { padding: 0.95rem 1rem 1.1rem; overflow: auto; }
.lvl-tag {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--green);
}
.lvl-skill { margin: 0 0 0.85rem; color: var(--dim); font-size: 0.92rem; }

.artifact {
  font-size: 0.92rem;
  line-height: 1.45;
}
.fake-web {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #f4f7f5;
  color: #122;
}
.fake-bar {
  display: flex; gap: 0.35rem; align-items: center;
  padding: 0.35rem 0.55rem;
  background: #dbe7df;
  font-family: var(--mono); font-size: 0.72rem; color: #345;
}
.fake-body { padding: 0.85rem; }
.fake-body h3 { margin: 0 0 0.4rem; }
.fake-body label { display: grid; gap: 0.2rem; margin: 0.4rem 0; font-size: 0.82rem; }
.fake-body input {
  border: 1px solid #b7c9bc; border-radius: 6px; padding: 0.4rem 0.5rem; font: inherit;
}
.src {
  margin-top: 0.7rem;
  padding: 0.7rem 0.8rem;
  background: #07140c;
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 0.78rem;
  white-space: pre-wrap;
  color: #9fe7b6;
}
.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.7rem 0.8rem;
  margin: 0.45rem 0;
  background: #08140e;
}
.card small { color: var(--dim); display: block; margin-bottom: 0.25rem; font-family: var(--mono); }
.choice {
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  background: #08140e;
  color: inherit;
  margin: 0.35rem 0;
}
.choice.on { border-color: var(--green); }
.log, .perm {
  font-family: var(--mono);
  font-size: 0.78rem;
  background: #07140c;
  padding: 0.7rem;
  border-radius: 8px;
  overflow-x: auto;
  white-space: pre;
}

.term-wrap { display: grid; grid-template-rows: auto 1fr auto; min-height: 16rem; }
.term-head {
  padding: 0.4rem 0.7rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--dim);
  border-bottom: 1px solid var(--line);
}
.term {
  padding: 0.65rem 0.75rem;
  overflow: auto;
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.45;
  white-space: pre-wrap;
  color: #b8ffd0;
  min-height: 10rem;
}
.term .err { color: var(--bad); }
.term .ok { color: var(--green); }
.term .me { color: var(--warn); }
.term-form {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.4rem;
  align-items: center;
  padding: 0.45rem 0.65rem;
  border-top: 1px solid var(--line);
}
.prompt { color: var(--green); font-family: var(--mono); }
#term-in, #answer {
  width: 100%;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.92rem;
  outline: none;
}

.dock {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 0.4rem;
  align-items: center;
  padding: 0.55rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #08140e;
  position: sticky;
  bottom: max(0.4rem, env(safe-area-inset-bottom));
}
#answer {
  min-height: 42px;
  padding: 0 0.55rem;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.status { margin: 0; min-height: 1.3rem; font-size: 0.88rem; color: var(--dim); }
.status.ok { color: var(--green); }
.status.bad { color: var(--bad); }
.sol-box {
  margin-top: 0.7rem;
  padding: 0.75rem 0.8rem;
  border: 1px dashed var(--warn);
  border-radius: 8px;
  background: #19160a;
}
.sol-box strong { color: var(--warn); }
.score { font-family: var(--mono); color: var(--green); }

@media (max-width: 860px) {
  .board { grid-template-columns: 1fr; }
  .dock { grid-template-columns: 1fr 1fr; }
  .dock #answer { grid-column: 1 / -1; }
  .map-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}