:root {
  color-scheme: dark;
  --bg: #11100d;
  --panel: #1b1914;
  --panel-2: #242017;
  --ink: #f2eadb;
  --muted: #b9ad99;
  --line: #3b3326;
  --gold: #d7a847;
  --rust: #b85f38;
  --green: #8dbf77;
  --shadow: rgba(0,0,0,.28);
  font-family: ui-serif, Georgia, Cambria, "Times New Roman", serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(circle at top left, rgba(215,168,71,.18), transparent 32rem), var(--bg);
  color: var(--ink);
}
button, input, textarea, select { font: inherit; }
.hero { padding: 28px clamp(18px, 4vw, 56px) 34px; border-bottom: 1px solid var(--line); }
nav { display: flex; justify-content: space-between; align-items: center; margin-bottom: 42px; }
.mark { display: inline-grid; place-items: center; width: 46px; height: 46px; border: 1px solid var(--gold); color: var(--gold); font-weight: 800; letter-spacing: .08em; }
.local, .hint, .status, footer { color: var(--muted); font-size: .92rem; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 32px; align-items: end; }
.eyebrow { color: var(--gold); text-transform: uppercase; letter-spacing: .16em; font: 700 .78rem ui-sans-serif, system-ui; }
h1 { max-width: 870px; margin: 0; font-size: clamp(2.5rem, 7vw, 6.8rem); line-height: .88; letter-spacing: -.06em; }
.lede { max-width: 680px; color: var(--muted); font-size: 1.18rem; line-height: 1.55; }
.score-card { background: linear-gradient(145deg, var(--panel), var(--panel-2)); border: 1px solid var(--line); padding: 24px; box-shadow: 0 18px 50px var(--shadow); }
.score-card strong { display: block; font: 800 4rem ui-sans-serif, system-ui; color: var(--green); margin: 8px 0; }
.label, .badge { font: 800 .78rem ui-sans-serif, system-ui; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.app-shell { display: grid; grid-template-columns: 390px minmax(0, 1fr); gap: 22px; padding: 24px clamp(18px, 4vw, 56px); }
.panel { background: rgba(27,25,20,.92); border: 1px solid var(--line); box-shadow: 0 14px 40px var(--shadow); }
.controls { position: sticky; top: 18px; align-self: start; padding: 20px; }
.panel-head { display: flex; justify-content: space-between; gap: 14px; align-items: center; margin-bottom: 16px; }
h2 { margin: 0 0 12px; font-size: 1.25rem; }
.panel-head h2 { margin: 0; }
label { display: grid; gap: 7px; margin: 0 0 14px; color: var(--muted); }
input, textarea, select {
  width: 100%; background: #12100d; color: var(--ink); border: 1px solid var(--line);
  padding: 10px 12px; outline: none; border-radius: 0;
}
input:focus, textarea:focus, select:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(215,168,71,.12); }
.button-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; margin-top: 18px; }
button { border: 1px solid var(--gold); background: var(--gold); color: #15120c; padding: 10px 12px; cursor: pointer; font-weight: 800; }
button:hover { filter: brightness(1.08); }
button.secondary, button.ghost { background: transparent; color: var(--gold); }
button.danger { border-color: var(--rust); background: transparent; color: #e79674; }
.workspace { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.output-card { padding: 20px; min-height: 180px; }
.wide { grid-column: 1 / -1; }
.arc-list, .tight-list { margin: 0; padding-left: 1.2rem; color: var(--ink); line-height: 1.52; }
.arc-list li { margin-bottom: 12px; }
.tight-list li { margin-bottom: 9px; }
.question-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.question { border-left: 3px solid var(--gold); background: rgba(255,255,255,.025); padding: 12px; }
.question b { color: var(--gold); margin-right: 8px; }
.question small { display: block; margin-top: 7px; color: var(--muted); font-family: ui-sans-serif, system-ui; line-height: 1.35; }
.badge { border: 1px solid var(--line); padding: 6px 8px; color: var(--gold); }
#brief { min-height: 420px; resize: vertical; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9rem; line-height: 1.45; }
footer { padding: 0 clamp(18px, 4vw, 56px) 30px; }
@media (max-width: 980px) {
  .hero-grid, .app-shell, .workspace, .question-grid { grid-template-columns: 1fr; }
  .controls { position: static; }
}