/* Orc[hestrator] — one-page institutional site.
   Tokens from frontend/tailwind.config.js (product anchors). */

:root {
  --canvas: #031427;
  --raised: #0a2036;
  --border: #1c3c5a;
  --text: #e6eef6;
  --muted: #c0cedd;
  --subtle: #9ab0c2;
  --accent: #ffc174;
  --accent-hover: #ffb355;
  --font-display: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --wrap: 1060px;
  --radius: 12px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--text); text-decoration: none; }
code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: var(--raised);
  border-radius: 4px;
  padding: 1px 5px;
}

::selection { background: var(--accent); color: var(--canvas); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--accent);
  color: var(--canvas);
  padding: 8px 16px;
  border-radius: 0 0 8px 0;
  font-weight: 600;
}
.skip:focus { left: 0; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--canvas);
  border-bottom: 1px solid var(--border);
}
.header-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 11px; }
.hero-mark { width: 72px; height: 72px; margin-bottom: 22px; }
.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.wordmark .tail { color: var(--accent); }

.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.15s ease;
}
.site-nav a:hover { color: var(--text); }
.site-nav a:last-child { color: var(--text); }
.site-nav a:last-child:hover { color: var(--accent); }

.menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 13px;
  min-height: 36px;
  padding: 6px 14px;
  cursor: pointer;
}

/* ---------- hero ---------- */
.hero { padding: 60px 0 48px; }
.hero-in {
  display: block;
}
.hero-copy { max-width: 680px; }
.hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.1rem, 1.35rem + 2.7vw, 3.15rem);
  line-height: 1.12;
  letter-spacing: -0.022em;
  margin: 0 0 20px;
}
.lede {
  color: var(--muted);
  font-size: 1.125rem;
  line-height: 1.55;
  max-width: 44ch;
  margin: 0 0 32px;
}
.cmd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--raised);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 13px 16px;
  max-width: 440px;
}
.cmd code {
  background: none;
  padding: 0;
  font-size: 15px;
  color: var(--text);
  overflow-wrap: anywhere;
}
.cmd .prompt { color: var(--subtle); }
.copy-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 5px 11px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
  flex: none;
}
.copy-btn:hover { color: var(--accent); border-color: var(--accent); }

.actions { display: flex; gap: 12px; margin-top: 24px; }
.btn {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn.primary { background: var(--accent); color: var(--canvas); }
.btn.primary:hover { background: var(--accent-hover); }
.btn.ghost { border: 1px solid var(--border); color: var(--text); }
.btn.ghost:hover { border-color: var(--subtle); color: var(--accent); }

.fineprint { color: var(--subtle); font-size: 14px; margin: 30px 0 0; }

.hero-shot {
  margin: 40px 0 0;
  background: var(--raised);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  padding: 8px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.4);
}
.hero-shot img {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: none;
}
.hero-shot figcaption {
  color: var(--muted);
  font-size: 14px;
  margin: 12px 4px 2px;
  text-align: left;
}

/* ---------- sections ---------- */
.section { padding: 56px 0; }
.section h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 1.25rem + 0.9vw, 1.9rem);
  letter-spacing: -0.015em;
  margin: 0 0 28px;
}

/* ---------- drift ---------- */
.drift {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.drift > div { padding-right: 36px; }
.drift > div + div { border-left: 1px solid var(--border); padding-left: 36px; }
.tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}
.drift p { margin: 0; color: var(--muted); font-size: 15.5px; max-width: 32ch; }

.compare {
  margin: 36px 0 0;
  color: var(--muted);
  font-size: 15.5px;
  max-width: 66ch;
}

/* ---------- cycle (CSS-only diagram) ---------- */
.cycle { display: flex; justify-content: center; margin: 8px 0; }
.cycle-inner { width: fit-content; max-width: 100%; }
.cycle-row {
  display: flex;
  align-items: center;
  gap: 6px;
}
.node {
  font-family: var(--font-mono);
  font-size: 15px;
  background: var(--raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 18px;
  color: var(--text);
  white-space: nowrap;
}
.node-done { border-color: var(--accent); color: var(--accent); }
.arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 62px;
}
.arrow .t {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
}
.arrow i::after {
  content: "\2192";
  color: var(--muted);
  font-size: 20px;
  font-style: normal;
  line-height: 1;
}
/* "complete" shortcut: dashed arc below, from any box up into done */
.cycle-complete {
  position: relative;
  height: 46px;
  margin: 6px 0 0;
}
.cycle-complete::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 100%;
  border: 2px dashed var(--subtle);
  border-top: none;
  border-radius: 0 0 130px 130px;
}
.cycle-complete::after {
  content: "";
  position: absolute;
  right: -6px;
  top: -3px;
  width: 0;
  height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-bottom: 10px solid var(--subtle);
}
.cycle-complete .t {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
  background: var(--canvas);
  padding: 1px 10px;
}
/* auxiliary states, kept discreet */
.cycle-aux {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 16px;
}
.aux {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--subtle);
  border: 1px dashed var(--border);
  border-radius: 999px;
  padding: 4px 14px;
}
.cycle-note { color: var(--muted); font-size: 15px; margin: 18px 0 40px; max-width: 62ch; }

/* ---------- mechanisms ---------- */
.mechanisms { margin: 0; border-top: 1px solid var(--border); }
.mechanisms > div {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.mechanisms dt {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--accent);
  padding-top: 2px;
}
.mechanisms dd { margin: 0; color: var(--muted); font-size: 15.5px; }

/* ---------- run ---------- */
.run-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: stretch;
}
.run-grid > div {
  display: flex;
  flex-direction: column;
}
.codeblock {
  background: var(--raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.codehead {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--subtle);
  letter-spacing: 0.04em;
  padding: 10px 18px;
  border-bottom: 1px solid var(--border);
}
.codeblock pre {
  margin: 0;
  padding: 18px;
  overflow-x: auto;
}
.codeblock pre code {
  background: none;
  padding: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
  white-space: pre;
}
.codecap { color: var(--muted); font-size: 15px; margin: 14px 2px 0; max-width: 46ch; }
.run-grid .codecap { margin-top: auto; padding-top: 14px; }

/* ---------- docs ---------- */
.docs-intro { color: var(--muted); font-size: 15.5px; margin: -24px 0 28px; }
.docs {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border);
}
.docs a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 15px 0;
  border-bottom: 1px solid var(--border);
  font-size: 15.5px;
  transition: color 0.15s ease;
}
.docs a:hover { color: var(--accent); }
.docs .hint { color: var(--subtle); font-size: 14px; white-space: nowrap; }
.docs a:hover .hint { color: var(--muted); }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 40px;
}
.footer-in {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.site-footer p { margin: 0; color: var(--subtle); font-size: 14px; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero { padding: 48px 0 44px; }
  .hero-shot figcaption { text-align: left; }
}

@media (max-width: 700px) {
  .section { padding: 44px 0; }
  .drift { grid-template-columns: 1fr; }
  .drift > div { padding-right: 0; padding-top: 0; }
  .drift > div + div {
    border-left: 0;
    padding-left: 0;
    border-top: 1px solid var(--border);
    margin-top: 28px;
    padding-top: 28px;
  }
  .drift > div:first-child { padding-top: 8px; }
  .compare { margin-top: 40px; }

  /* cycle: vertical, complete as a dashed box */
  .cycle-inner { width: 100%; }
  .cycle-row { flex-direction: column; align-items: stretch; gap: 4px; }
  .node { text-align: center; white-space: normal; }
  .arrow { min-width: 0; min-height: 40px; justify-content: center; }
  .arrow i::after { content: "\2193"; }
  .cycle-complete {
    height: auto;
    margin: 14px 0 0;
    border: 2px dashed var(--subtle);
    border-radius: 10px;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .cycle-complete::before { content: none; }
  .cycle-complete::after { content: none; }
  .cycle-complete .t { position: static; transform: none; background: none; padding: 0; }

  .mechanisms > div { grid-template-columns: 1fr; gap: 6px; }
  .run-grid { grid-template-columns: 1fr; }

  .docs a { flex-wrap: wrap; gap: 4px; }
  .docs .hint { white-space: normal; }
}

@media (max-width: 640px) {
  .menu-btn { display: inline-block; }
  .site-nav {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--border);
    padding: 8px 24px 16px;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 11px 0; font-size: 15px; width: 100%; }
  .actions { flex-wrap: wrap; }
}

/* ---------- motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}