/* Metalprompter — self-contained styles (no external fonts, no CDNs).
   Theme-aware: follows prefers-color-scheme, with a data-theme override the
   toggle stamps on <html>. Both light and dark are fully styled. */

:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --panel-2: #eef0f3;
  --ink: #1c2027;
  --ink-soft: #565c65;
  --line: #d7dbe0;
  --accent: #b5561f;      /* forge / metal-heat accent */
  --accent-ink: #ffffff;
  --chip: #e7ebf0;
  --chip-ink: #384049;
  --ph: #a24a12;          /* «placeholder» highlight */
  --ph-bg: #fbeee2;
  --ok: #2f7d4f;
  --warn: #9a6a00;
  --shadow: 0 1px 2px rgba(20, 24, 30, 0.06), 0 6px 24px rgba(20, 24, 30, 0.06);
  --radius: 14px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c;
    --panel: #1c2027;
    --panel-2: #232830;
    --ink: #e8ebef;
    --ink-soft: #a3abb5;
    --line: #313842;
    --accent: #e07a3e;
    --accent-ink: #1a1206;
    --chip: #2a313a;
    --chip-ink: #cdd4dc;
    --ph: #f0a869;
    --ph-bg: #33240f;
    --ok: #6bd18f;
    --warn: #e2b45a;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 30px rgba(0, 0, 0, 0.35);
  }
}
/* Explicit override wins in both directions when the toggle sets data-theme. */
:root[data-theme="light"] {
  --bg: #f4f5f7; --panel: #fff; --panel-2: #eef0f3; --ink: #1c2027; --ink-soft: #565c65;
  --line: #d7dbe0; --accent: #b5561f; --accent-ink: #fff; --chip: #e7ebf0; --chip-ink: #384049;
  --ph: #a24a12; --ph-bg: #fbeee2; --ok: #2f7d4f; --warn: #9a6a00;
  --shadow: 0 1px 2px rgba(20,24,30,.06), 0 6px 24px rgba(20,24,30,.06);
}
:root[data-theme="dark"] {
  --bg: #14171c; --panel: #1c2027; --panel-2: #232830; --ink: #e8ebef; --ink-soft: #a3abb5;
  --line: #313842; --accent: #e07a3e; --accent-ink: #1a1206; --chip: #2a313a; --chip-ink: #cdd4dc;
  --ph: #f0a869; --ph-bg: #33240f; --ok: #6bd18f; --warn: #e2b45a;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 30px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Top bar ─────────────────────────────────────────────────────────────── */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 16px clamp(16px, 4vw, 40px);
  border-bottom: 1px solid var(--line); background: var(--panel);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-gear { font-size: 26px; filter: drop-shadow(0 1px 1px rgba(0,0,0,.25)); }
.brand h1 { font-size: 19px; margin: 0; letter-spacing: .2px; }
.tagline { margin: 0; font-size: 12.5px; color: var(--ink-soft); }
nav { display: flex; align-items: center; gap: 14px; }

/* ── Layout ──────────────────────────────────────────────────────────────── */
main { max-width: 1080px; margin: 0 auto; padding: clamp(16px, 3vw, 32px); }
.intro p { margin: 0 0 8px; color: var(--ink-soft); max-width: 70ch; }
.intro strong { color: var(--ink); }

.studio {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 18px;
}
@media (max-width: 820px) { .studio { grid-template-columns: 1fr; } }

.pane {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow);
  min-width: 0;
}
.pane-label {
  display: block; font-size: 12px; font-weight: 600; letter-spacing: .04em;
  text-transform: uppercase; color: var(--ink-soft); margin-bottom: 8px;
}
.pane-head { display: flex; align-items: center; justify-content: space-between; }

textarea#rawPrompt {
  width: 100%; min-height: 240px; resize: vertical;
  font-family: var(--mono); font-size: 14px; line-height: 1.5;
  color: var(--ink); background: var(--panel-2);
  border: 1px solid var(--line); border-radius: 10px; padding: 12px;
}
textarea#rawPrompt:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

/* ── Controls / the metal gear button ───────────────────────────────────── */
.controls { display: flex; align-items: center; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
.forge {
  display: inline-flex; align-items: center; gap: 10px;
  background: linear-gradient(180deg, var(--accent), color-mix(in oklab, var(--accent) 82%, black));
  color: var(--accent-ink); border: none; border-radius: 12px;
  padding: 10px 16px 10px 12px; font-size: 15px; font-weight: 650; cursor: pointer;
  box-shadow: var(--shadow); transition: transform .06s ease, filter .15s ease;
}
.forge:hover { filter: brightness(1.05); }
.forge:active { transform: translateY(1px); }
.forge:disabled { cursor: progress; filter: saturate(.7); }
.gear-wrap { display: inline-flex; }
.gear { display: block; }
.forge.spinning .gear { animation: spin 1.1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.ghost {
  background: transparent; color: var(--ink-soft);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 8px 12px; font-size: 13px; cursor: pointer;
}
.ghost:hover { color: var(--ink); border-color: var(--ink-soft); }
.ghost:disabled { opacity: .5; cursor: default; }

.mode-badge {
  font-family: var(--mono); font-size: 11.5px; color: var(--chip-ink);
  background: var(--chip); border: 1px solid var(--line);
  padding: 3px 8px; border-radius: 999px;
}
.mode-badge[data-mode="ai"] { color: var(--accent-ink); background: var(--accent); border-color: transparent; }

/* ── Output ─────────────────────────────────────────────────────────────── */
.improved {
  margin: 8px 0 0; min-height: 240px; white-space: pre-wrap; word-wrap: break-word;
  font-family: var(--mono); font-size: 13.5px; line-height: 1.55;
  color: var(--ink); background: var(--panel-2);
  border: 1px solid var(--line); border-radius: 10px; padding: 12px;
  overflow-x: auto;
}
.improved .empty { color: var(--ink-soft); font-style: italic; }
.improved .ph {
  color: var(--ph); background: var(--ph-bg); border-radius: 4px;
  padding: 0 3px; box-decoration-break: clone; -webkit-box-decoration-break: clone;
}
.improved h1, .improved .md-h { color: var(--accent); font-weight: 700; }
.improved .refusal { color: var(--warn); font-style: normal; }

.effort-row { margin-top: 12px; }
.chip {
  display: inline-block; font-size: 12px; padding: 4px 10px; border-radius: 999px;
  background: var(--chip); color: var(--chip-ink); border: 1px solid var(--line);
}
.chip-effort { font-family: var(--mono); }

.flags-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.flag {
  font-size: 11.5px; padding: 3px 8px; border-radius: 999px;
  background: transparent; color: var(--warn); border: 1px dashed var(--warn);
}

.changelog { margin-top: 14px; }
.changelog > summary {
  cursor: pointer; font-weight: 600; font-size: 13.5px; color: var(--ink); user-select: none;
}
.changelog ul { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 10px; }
.changelog li {
  border-left: 3px solid var(--line); padding: 2px 0 2px 12px;
}
.changelog li.kind-rule { border-left-color: var(--ok); }
.changelog li.kind-diagnosis { border-left-color: var(--warn); }
.changelog li.kind-tip { border-left-color: var(--accent); }
.cl-title { font-weight: 650; font-size: 13.5px; }
.cl-kind {
  font-size: 10.5px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--ink-soft); margin-left: 8px; font-weight: 600;
}
.cl-detail { font-size: 13px; color: var(--ink-soft); margin-top: 2px; }

/* ── Footnote / footer ──────────────────────────────────────────────────── */
.footnote {
  margin-top: 22px; padding: 14px 16px; border: 1px solid var(--line);
  border-radius: var(--radius); background: var(--panel);
  font-size: 13px; color: var(--ink-soft);
}
.footnote code, code { font-family: var(--mono); font-size: 12.5px; background: var(--panel-2); padding: 1px 5px; border-radius: 5px; }
.sitefoot {
  max-width: 1080px; margin: 24px auto; padding: 16px clamp(16px, 3vw, 32px);
  display: flex; justify-content: space-between; gap: 12px;
  color: var(--ink-soft); font-size: 12.5px; border-top: 1px solid var(--line);
}

/* ── Docs page ──────────────────────────────────────────────────────────── */
.doc { max-width: 860px; margin: 0 auto; padding: clamp(16px, 3vw, 32px); }
.doc h2 { margin-top: 34px; border-bottom: 1px solid var(--line); padding-bottom: 6px; }
.doc h3 { margin-top: 22px; }
.doc table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 14px; display: block; overflow-x: auto; }
.doc th, .doc td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.doc th { color: var(--ink-soft); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.doc td code { white-space: nowrap; }
.doc .card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; margin: 12px 0; box-shadow: var(--shadow); }
.doc .card h4 { margin: 0 0 4px; }
.doc .muted { color: var(--ink-soft); }
.doc ul.rules { padding-left: 0; list-style: none; display: grid; gap: 12px; }
.doc ul.rules li { border-left: 3px solid var(--ok); padding-left: 12px; }
.doc .snippet {
  font-family: var(--mono); font-size: 12.5px; background: var(--panel-2);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; margin-top: 6px;
  white-space: pre-wrap;
}
.backlink { display: inline-block; margin-bottom: 8px; }
