/* DCS-Gate — “Forge” palette
   Warm graphite + burnished amber + terracotta + moss
   Single stylesheet for index.html, demo.html, docs.html, pitch/*.html
*/

:root {
  /* Forge palette — warm graphite, amber, terracotta, moss */
  --bg:           #0e0d0b;
  --bg-elev:      #1a1815;
  --bg-elev-2:    #221f1a;
  --border:       #2a2622;
  --border-muted: #1f1c19;

  --text:         #e8dfd0;   /* warm cream / parchment */
  --text-muted:   #a59c8c;   /* warm muted */
  --text-faint:   #7a7163;   /* deeper sand */

  --link:         #d9a04a;   /* burnished amber */
  --link-hover:   #ecb858;

  --accent:       #d9a04a;   /* burnished amber, primary accent */
  --accent-soft:  rgba(217,160,74,0.12);
  --on-accent:    #0e0d0b;   /* dark text for use on amber surfaces */

  --green:        #9ab06b;   /* moss — “genuine” / high tier */
  --green-soft:   rgba(154,176,107,0.14);

  --yellow:       #c8a847;   /* warm gold — status: running, secondary highlight */
  --yellow-soft:  rgba(200,168,71,0.14);

  --red:          #c75432;   /* terracotta — “performed” / “control_total” */
  --red-soft:     rgba(199,84,50,0.14);

  --purple:       #c8a070;   /* camel — thinking-trace accent */

  /* type */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans",
               Helvetica, Arial, sans-serif, "Apple Color Emoji",
               "Segoe UI Emoji";
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
               "Liberation Mono", monospace;

  --radius:       6px;
  --radius-lg:    12px;
  --shadow:       0 1px 0 rgba(255,255,255,0.04) inset,
                  0 16px 32px -16px rgba(0,0,0,0.6);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--link);
  text-decoration: none;
}
a:hover { color: var(--link-hover); text-decoration: underline; }

code, pre, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

code {
  background: var(--bg-elev);
  border: 1px solid var(--border-muted);
  border-radius: 4px;
  padding: 0.12em 0.4em;
  color: var(--text);
}

pre {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  overflow-x: auto;
  line-height: 1.5;
}

pre code {
  background: transparent;
  border: 0;
  padding: 0;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

/* ────────── nav ────────── */

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(14,13,11,0.86);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-brand {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.nav-brand .v {
  color: var(--text-muted);
  font-weight: 400;
}

.nav-links {
  margin-left: auto;
  display: flex;
  gap: 18px;
  align-items: center;
  font-size: 0.92rem;
}

.nav-links a {
  color: var(--text-muted);
}
.nav-links a:hover { color: var(--text); text-decoration: none; }

.nav-links .active { color: var(--text); }

.btn-cta {
  background: var(--accent);
  color: var(--on-accent) !important;
  padding: 6px 14px;
  border-radius: var(--radius);
  font-weight: 500;
  transition: background 0.12s ease;
}
.btn-cta:hover { background: var(--link-hover); text-decoration: none; color: var(--on-accent) !important; }

/* ────────── containers ────────── */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ────────── hero ────────── */

.hero {
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--border-muted);
}

.hero .container-narrow {
  text-align: left;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  font-weight: 600;
}

.hero h1 .accent { color: var(--accent); }

.hero p.lead {
  font-size: 1.18rem;
  line-height: 1.55;
  color: var(--text-muted);
  margin: 0 0 36px;
  max-width: 640px;
}

.hero .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.cta-row a {
  display: inline-block;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.95rem;
}

.cta-primary {
  background: var(--accent);
  color: var(--on-accent) !important;
  font-weight: 600;
}
.cta-primary:hover { background: var(--link-hover); text-decoration: none; color: var(--on-accent) !important; }

.cta-secondary {
  background: var(--bg-elev);
  color: var(--text) !important;
  border: 1px solid var(--border);
}
.cta-secondary:hover {
  background: var(--bg-elev-2);
  text-decoration: none;
  border-color: var(--text-muted);
}

.hero .meta {
  margin-top: 28px;
  font-size: 0.88rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
}
.hero .meta span { margin-right: 18px; }

/* ────────── sections ────────── */

section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border-muted);
}

section:last-of-type { border-bottom: 0; }

h2 {
  font-size: 1.65rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin: 0 0 12px;
  color: var(--text);
}

h2 .kicker {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

h3 {
  font-size: 1.18rem;
  font-weight: 600;
  margin: 32px 0 8px;
  color: var(--text);
}

p {
  margin: 0 0 16px;
  color: var(--text);
}

p.muted, .muted { color: var(--text-muted); }

/* ────────── evidence (smoke test table) ────────── */

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 36px;
}

@media (max-width: 720px) {
  .evidence-grid { grid-template-columns: 1fr; }
}

.evidence-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.evidence-card .score {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.evidence-card.low  .score { color: var(--red); }
.evidence-card.mid  .score { color: var(--yellow); }
.evidence-card.high .score { color: var(--green); }

.evidence-card .tier {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.evidence-card .label {
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

.evidence-card .sample {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius);
  padding: 10px 12px;
  line-height: 1.5;
}

/* ────────── methodology table ────────── */

table.spec {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.94rem;
}

table.spec th,
table.spec td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-muted);
}

table.spec th {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
}

table.spec td code { white-space: nowrap; }

table.spec tr:last-child td { border-bottom: 0; }

/* ────────── pill tags ────────── */

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0 20px;
}

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.tag.accent { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.tag.green  { color: var(--green);  border-color: var(--green);  background: var(--green-soft);  }

/* ────────── disclosure block ────────── */

.callout {
  margin: 24px 0;
  padding: 16px 18px;
  border-left: 3px solid var(--accent);
  background: var(--bg-elev);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.callout.warn  { border-left-color: var(--yellow); }
.callout.green { border-left-color: var(--green);  }

/* ────────── footer ────────── */

footer.site {
  padding: 48px 0 64px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.92rem;
}

footer.site .container {
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
}

footer.site .col {
  flex: 1 1 220px;
}

footer.site h4 {
  margin: 0 0 12px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}

footer.site ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

footer.site li {
  margin: 6px 0;
}

footer.site .legal {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-muted);
  font-size: 0.85rem;
  color: var(--text-faint);
}

/* ────────── demo page specific ────────── */

.demo-shell {
  max-width: 980px;
  margin: 0 auto;
  padding: 48px 24px;
}

.demo-shell h1 {
  font-size: 1.55rem;
  margin: 0 0 8px;
}

.demo-shell .sub {
  color: var(--text-muted);
  margin-bottom: 24px;
}

.demo-config {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 20px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
}

.demo-config label {
  display: block;
  margin-bottom: 6px;
  color: var(--text-muted);
}

.demo-config input {
  width: 100%;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px 10px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
}
.demo-config input:focus {
  outline: 0;
  border-color: var(--accent);
}

.demo-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
@media (max-width: 720px) {
  .demo-row { grid-template-columns: 1fr; }
}

.demo-row textarea {
  width: 100%;
  min-height: 140px;
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.5;
  resize: vertical;
}
.demo-row textarea:focus { outline: 0; border-color: var(--accent); }

.demo-row label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.demo-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.demo-actions button {
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  border: 0;
  border-radius: var(--radius);
  font: inherit;
  font-weight: 500;
  padding: 10px 20px;
  cursor: pointer;
}
.demo-actions button:hover { background: var(--link-hover); }
.demo-actions button:disabled {
  background: var(--bg-elev-2);
  color: var(--text-faint);
  cursor: not-allowed;
}

.demo-status {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}
.demo-status.running { color: var(--yellow); }
.demo-status.done    { color: var(--green); }
.demo-status.error   { color: var(--red); }

.event-stream {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.55;
  max-height: 520px;
  overflow-y: auto;
}

.event-stream .ev-name {
  color: var(--accent);
  font-weight: 600;
}
.event-stream .ev-data {
  color: var(--text-muted);
  white-space: pre-wrap;
}
.event-stream .ev-line { margin-bottom: 4px; }

.event-stream .thinking {
  color: var(--purple);
  font-style: italic;
  background: rgba(188,140,255,0.05);
  border-left: 2px solid var(--purple);
  padding: 6px 10px;
  margin: 6px 0;
  border-radius: 0 4px 4px 0;
  white-space: pre-wrap;
}

.verdict {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 16px;
}

.verdict .v-score {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 6px;
}
.verdict.low  .v-score { color: var(--red);    }
.verdict.mid  .v-score { color: var(--yellow); }
.verdict.high .v-score { color: var(--green);  }

.verdict .v-tier {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.verdict ul { padding-left: 18px; margin: 8px 0; }
.verdict li { margin: 4px 0; }

/* ────────── docs index ────────── */

.doc-card {
  display: block;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 14px;
  text-decoration: none !important;
  color: inherit !important;
  transition: border-color 0.12s ease, transform 0.12s ease;
}
.doc-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.doc-card .doc-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  margin-bottom: 4px;
}

.doc-card .doc-title {
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 4px;
  color: var(--text);
}

.doc-card .doc-blurb {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 8px;
}

.doc-card .doc-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* ────────── markdown rendered (pitch/*.html) ────────── */

.markdown {
  max-width: 760px;
  margin: 48px auto;
  padding: 0 24px 64px;
  line-height: 1.65;
}

.markdown h1 { font-size: 2rem; margin: 0 0 24px; letter-spacing: -0.02em; }
.markdown h2 { font-size: 1.45rem; margin: 36px 0 14px; border-bottom: 1px solid var(--border-muted); padding-bottom: 6px; }
.markdown h3 { font-size: 1.15rem; margin: 28px 0 10px; }
.markdown h4 { font-size: 1.0rem; margin: 20px 0 8px; }

.markdown p { color: var(--text); }
.markdown blockquote {
  border-left: 3px solid var(--accent);
  margin: 16px 0;
  padding: 4px 16px;
  color: var(--text-muted);
  background: var(--bg-elev);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.markdown ul, .markdown ol { padding-left: 24px; }
.markdown li { margin: 4px 0; }

.markdown table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 0.94rem;
}
.markdown table th,
.markdown table td {
  text-align: left;
  padding: 8px 12px;
  border: 1px solid var(--border-muted);
}
.markdown table th {
  background: var(--bg-elev);
  font-weight: 600;
  color: var(--text-muted);
}
.markdown table tr:nth-child(even) td { background: rgba(255,255,255,0.02); }

.markdown hr { margin: 36px 0; }

.markdown .back {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.markdown .back::before { content: "← "; }

/* ────────── responsive nav ────────── */

@media (max-width: 600px) {
  .nav-links a:not(.btn-cta) { display: none; }
}