/* AshbyForge — cold iron, hot metal. Committed dark theme. */

:root {
  --iron: #16181d;      /* page ground: blue-black iron */
  --iron-2: #1c1f26;    /* raised panel */
  --iron-3: #22262f;    /* inset / code */
  --line: #2a2e38;      /* hairline */
  --bone: #e8e6df;      /* primary text: warm against cold */
  --ash: #9aa1ad;       /* secondary text */
  --ash-dim: #6b7280;   /* tertiary */
  --ember: #ff9e3d;     /* the working accent */
  --ember-dim: #b06a2a;
  --heat-a: #ff5c33;    /* heat gradient — hero only */
  --heat-b: #ffb84d;
  --ok: #7fb069;
  --bad: #d06655;
}

* { box-sizing: border-box; }

html { color-scheme: dark; }

body {
  margin: 0;
  background: var(--iron);
  color: var(--bone);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.sans { font-family: "Archivo", "Helvetica Neue", Arial, sans-serif; }
.mono, code, pre, kbd {
  font-family: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

a { color: var(--ember); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 2px;
}

/* ---------- shell ---------- */

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 24px; }

header.site {
  border-bottom: 1px solid var(--line);
  background: var(--iron);
}
header.site .wrap {
  display: flex; align-items: baseline; gap: 28px;
  padding-top: 18px; padding-bottom: 18px;
}
.wordmark {
  font-family: "Archivo", sans-serif;
  font-weight: 800;
  font-stretch: 125%;
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--bone);
  text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 9px;
}
.wordmark .mark { width: 22px; height: 22px; flex: none; }
.wordmark em { font-style: normal; color: var(--ember); }
.wordmark:hover { text-decoration: none; }
nav.site { display: flex; gap: 22px; margin-left: auto; }
nav.site a {
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  color: var(--ash);
  letter-spacing: 0.04em;
}
nav.site a[aria-current="page"] { color: var(--bone); }
nav.site a:hover { color: var(--ember); text-decoration: none; }

footer.site {
  border-top: 1px solid var(--line);
  margin-top: 96px;
}
footer.site .wrap {
  padding-top: 28px; padding-bottom: 44px;
  display: flex; flex-wrap: wrap; gap: 8px 32px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12.5px; color: var(--ash-dim);
}
footer.site a { color: var(--ash); }

/* ---------- type ---------- */

h1, h2, h3 {
  font-family: "Archivo", sans-serif;
  line-height: 1.12;
  text-wrap: balance;
  margin: 0;
}
h1 { font-weight: 800; font-stretch: 125%; font-size: clamp(38px, 6vw, 62px); letter-spacing: -0.01em; }
h2 { font-weight: 700; font-stretch: 115%; font-size: 27px; margin-top: 8px; }
h3 { font-weight: 650; font-size: 19px; }

.eyebrow {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ember);
  margin: 0 0 10px;
}

p.lede { font-size: 20px; color: var(--ash); max-width: 62ch; }
.muted { color: var(--ash); }
.dim { color: var(--ash-dim); }

/* ---------- hero ---------- */

.hero { padding: 84px 0 64px; border-bottom: 1px solid var(--line); }
.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 56px;
  align-items: center;
}
.hero h1 .heat {
  background: linear-gradient(100deg, var(--heat-a), var(--heat-b));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lede { margin: 22px 0 30px; }
.cta { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
  padding: 11px 20px;
  border: 1px solid var(--line);
  color: var(--bone);
  background: var(--iron-2);
}
.btn:hover { text-decoration: none; border-color: var(--ember-dim); color: var(--ember); }
.btn.hot { background: var(--ember); border-color: var(--ember); color: #1a1105; font-weight: 600; }
.btn.hot:hover { color: #1a1105; filter: brightness(1.07); }

/* the journal tail — the system's own telemetry as the hero image */
.journal {
  background: var(--iron-3);
  border: 1px solid var(--line);
  border-left: 3px solid var(--ember);
  padding: 18px 20px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--ash);
  overflow-x: auto;
  white-space: nowrap;
}
.journal .k { color: var(--ember); }
.journal .ok { color: var(--ok); }
.journal .t { color: var(--ash-dim); }
.journal .hl { color: var(--bone); }

/* ---------- sections ---------- */

section.band { padding: 72px 0 8px; }
section.band > .wrap > p { max-width: 68ch; }

.grid3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 36px;
}
.grid3 > div { background: var(--iron-2); padding: 26px 24px 30px; }
.grid3 h3 { margin-bottom: 10px; }
.grid3 p { margin: 0; font-size: 15.5px; color: var(--ash); }
.grid3 code { font-size: 13px; color: var(--bone); }

/* the loop — real state flow */
.loop {
  display: flex; flex-wrap: wrap; align-items: stretch; gap: 10px;
  margin-top: 36px;
  font-family: "IBM Plex Mono", monospace;
}
.loop .stage {
  flex: 1 1 140px;
  border: 1px solid var(--line);
  background: var(--iron-2);
  padding: 14px 16px;
  min-width: 150px;
}
.loop .stage b {
  display: block;
  font-family: "Archivo", sans-serif;
  font-weight: 700;
  font-size: 15px;
  color: var(--bone);
  margin-bottom: 6px;
}
.loop .stage span { font-size: 12px; color: var(--ash); display: block; line-height: 1.55; }
.loop .stage .tag { color: var(--ember); }
.loop .back {
  flex-basis: 100%;
  text-align: center;
  color: var(--ash-dim);
  font-size: 12px;
  letter-spacing: 0.12em;
  padding-top: 4px;
}

/* ---------- prose pages (story, docs) ---------- */

article.prose { max-width: 700px; margin: 0 auto; padding: 64px 24px 0; }
article.prose h1 { font-size: clamp(32px, 5vw, 44px); margin-bottom: 8px; }
article.prose .byline {
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px; color: var(--ash-dim);
  margin-bottom: 40px;
}
article.prose h2 { margin: 52px 0 14px; }
article.prose h3 { margin: 36px 0 10px; }
article.prose p, article.prose li { max-width: 66ch; }
article.prose li { margin: 6px 0; }
article.prose blockquote {
  margin: 28px 0; padding: 4px 0 4px 22px;
  border-left: 3px solid var(--ember);
  color: var(--ash); font-style: italic;
}
article.prose hr { border: 0; border-top: 1px solid var(--line); margin: 48px 0; }

pre {
  background: var(--iron-3);
  border: 1px solid var(--line);
  padding: 16px 18px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.7;
  color: var(--bone);
}
p code, li code, td code {
  background: var(--iron-3);
  border: 1px solid var(--line);
  padding: 1px 6px;
  font-size: 13.5px;
}

table { border-collapse: collapse; width: 100%; margin: 24px 0; font-size: 15px; }
.tablewrap { overflow-x: auto; }
th, td { text-align: left; padding: 9px 14px 9px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
th {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ash-dim); font-weight: 500;
}
td:first-child code { white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
td { color: var(--ash); }
td:first-child { color: var(--bone); }

/* docs layout */
.docs { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 56px; padding-top: 56px; }
.docs aside { font-family: "IBM Plex Mono", monospace; font-size: 13px; }
.docs aside .eyebrow { color: var(--ash-dim); }
.docs aside a { display: block; color: var(--ash); padding: 5px 0; }
.docs aside a[aria-current="page"] { color: var(--ember); }
.docs aside a:hover { color: var(--bone); text-decoration: none; }
.docs article { max-width: 720px; padding-bottom: 24px; }
.docs article h1 { font-size: 34px; margin-bottom: 10px; }
.docs article h2 { margin: 48px 0 12px; }
.docs article p, .docs article li { font-size: 16px; max-width: 68ch; }

.callout {
  border: 1px solid var(--line);
  border-left: 3px solid var(--ember);
  background: var(--iron-2);
  padding: 14px 18px;
  margin: 26px 0;
  font-size: 15px;
  color: var(--ash);
}
.callout b { color: var(--bone); }

/* ---------- header search ---------- */

.search { position: relative; margin-left: 26px; }
.search input {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12.5px;
  background: var(--iron-2);
  border: 1px solid var(--line);
  color: var(--bone);
  padding: 6px 10px;
  width: 150px;
}
.search input::placeholder { color: var(--ash-dim); }
.search input:focus { outline: none; border-color: var(--ember-dim); width: 210px; }
.search-results {
  position: absolute; right: 0; top: calc(100% + 6px);
  min-width: 300px; max-width: 380px; z-index: 20;
  background: var(--iron-2); border: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.search-results a {
  display: block; padding: 9px 13px;
  border-bottom: 1px solid var(--line);
  color: var(--bone); font-size: 14px;
}
.search-results a:last-child { border-bottom: 0; }
.search-results a:hover { background: var(--iron-3); text-decoration: none; }
.search-results .sr-page {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ember);
}
.search-results .sr-section { display: block; }

/* ---------- diagrams (docs) ---------- */

.diagram {
  border: 1px solid var(--line);
  background: var(--iron-2);
  padding: 22px;
  margin: 28px 0;
  display: flex; flex-direction: column; gap: 12px;
  overflow-x: auto;
}
.drow { display: flex; align-items: stretch; gap: 10px; flex-wrap: wrap; }
.dbox {
  border: 1px solid var(--line);
  background: var(--iron-3);
  padding: 11px 14px;
  min-width: 130px; flex: 1 1 130px;
}
.dbox b {
  display: block;
  font-family: "Archivo", sans-serif;
  font-weight: 700; font-size: 14px;
  color: var(--bone); margin-bottom: 3px;
}
.dbox b a { color: var(--bone); }
.dbox b a:hover { color: var(--ember); text-decoration: none; }
.dbox span {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11.5px; color: var(--ash); line-height: 1.55;
}
.dbox.hot { border-color: var(--ember-dim); }
.dbox.hot b { color: var(--ember); }
.darr {
  align-self: center; flex: none;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px; color: var(--ash-dim);
  white-space: nowrap; padding: 0 2px;
}
.dnote {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11.5px; color: var(--ash-dim);
  text-align: center; letter-spacing: 0.08em;
}

/* ---------- screenshots ---------- */

.shots { display: grid; grid-template-columns: 1fr; gap: 28px; margin-top: 36px; }
.shot { margin: 0; }
.shot a { display: block; border: 1px solid var(--line); background: var(--iron-2); }
.shot img { display: block; width: 100%; height: auto; }
.shot figcaption {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12.5px; color: var(--ash);
  padding: 10px 2px 0;
}
.shot figcaption b { color: var(--bone); font-weight: 600; }

/* ---------- patch notes ---------- */

.notes { max-width: 780px; }
.day { margin-top: 44px; }
.day h2 { border-bottom: 1px solid var(--line); padding-bottom: 8px; }
.note { margin: 20px 0; }
.note-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.note-head h3 { margin: 0; font-weight: 600; font-size: 17px; }
.badge {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 2px 8px; border: 1px solid var(--line);
}
.badge.feat { color: var(--ember); border-color: var(--ember-dim); }
.badge.fix { color: var(--ok); border-color: #4a6342; }
.badge.perf, .badge.refactor { color: var(--ash); }
.scope {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11.5px; color: var(--ash-dim);
}
.sha { font-family: "IBM Plex Mono", monospace; font-size: 11.5px; color: var(--ash-dim); margin-left: auto; }
.note p { margin: 6px 0 0; font-size: 15px; color: var(--ash); max-width: 68ch; }
.housekeeping {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12.5px; color: var(--ash-dim); margin-top: 18px;
}

@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 36px; }
  .grid3 { grid-template-columns: 1fr; }
  .docs { grid-template-columns: 1fr; gap: 24px; }
  .docs aside { display: flex; flex-wrap: wrap; gap: 2px 18px; border-bottom: 1px solid var(--line); padding-bottom: 14px; }
  .docs aside .eyebrow { flex-basis: 100%; }
}

@media (prefers-reduced-motion: no-preference) {
  .journal .live { animation: pulse 2.4s ease-in-out infinite; }
  @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
}