/* roost design system — terminal-native, mono-forward, ember-on-ink.
   The brand is a hearth: warmth (ember) on cold hardware (ink). Data and
   labels are set in monospace because roost is operated from a terminal;
   the mono face is the signature, not a fallback. */

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: local('Inter'), local('Inter-Regular');
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: local('JetBrains Mono'), local('JetBrainsMono-Regular');
}

:root {
  --ink: #0a0b0d;
  --ink2: #101317;
  --ink3: #161b20;
  --raise: #1c2228;
  --line: #232a31;
  --line2: #2e363e;
  --fog: #8b95a0;
  --fog2: #aeb8c2;
  --paper: #f3eee5;
  --text: #e7ecf0;
  --ember: #e8763a;
  --accent: var(--ember);
  --glow: #f6a866;
  --deep: #c85a24;
  --good: #7bd88f;
  --warn: #e8b23a;
  --bad: #ef6b62;
  --info: #79a9d6;
  --mono: 'JetBrains Mono', ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --maxw: 1120px;
  --r: 10px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "liga" 1, "calt" 1;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { animation: none !important; transition: none !important; } }

a { color: var(--glow); text-decoration: none; }
a:hover { color: var(--paper); }
:focus-visible { outline: 2px solid var(--ember); outline-offset: 2px; border-radius: 3px; }
code, kbd, pre { font-family: var(--mono); }
.tnum { font-variant-numeric: tabular-nums; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.mono { font-family: var(--mono); }
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ember);
}
.muted { color: var(--fog); }

/* ---- nav ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  padding: 10px 24px;
}
.nav .wrap {
  display: flex; align-items: center; gap: 28px; height: 52px;
  background: color-mix(in srgb, var(--ink) 82%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 20px;
  max-width: 820px;
  margin: 0 auto;
  position: relative;
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-weight: 600; color: var(--paper); letter-spacing: -0.01em; }
.brand .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.nav nav { display: flex; gap: 22px; margin-left: auto; align-items: center; }
.nav nav a { font-family: var(--mono); font-size: 13.5px; color: var(--fog2); }
.nav nav a:hover, .nav nav a[aria-current="page"] { color: var(--paper); }
.nav .cta {
  font-family: var(--mono); font-size: 13px; color: var(--ink);
  background: var(--accent); padding: 7px 14px; border-radius: 999px; font-weight: 600;
}
.nav .cta:hover { background: var(--glow); color: var(--ink); }

/* hamburger */
.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  background: transparent; border: none; cursor: pointer; padding: 4px 6px;
  margin-left: auto; flex-shrink: 0;
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--fog2); border-radius: 2px; transition: all .2s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 14px; font-weight: 600;
  padding: 11px 18px; border-radius: 999px; border: 1px solid transparent; cursor: pointer;
  transition: all .2s ease;
}
.btn-primary { background: var(--ember); color: var(--ink); }
.btn-primary:hover { background: var(--glow); color: var(--ink); box-shadow: 0 0 24px rgba(232,118,58,0.4); }
.btn-ghost { border-color: var(--line2); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--ember); color: var(--paper); }

/* ---- generic surfaces ---- */
.card {
  background: var(--ink2); border: 1px solid var(--line); border-radius: var(--r);
}
.hr { height: 1px; background: var(--line); border: 0; margin: 0; }

/* ---- pills / status ---- */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono); font-size: 12px; padding: 3px 9px; border-radius: 999px;
  border: 1px solid var(--line2); color: var(--fog2);
}
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.pill.good { color: var(--good); border-color: color-mix(in srgb, var(--good) 40%, transparent); }
.pill.bad { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 40%, transparent); }
.pill.run { color: var(--info); border-color: color-mix(in srgb, var(--info) 40%, transparent); }
.pill.run::before { animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.25; } }

/* ---- footer ---- */
.foot { position: relative; margin-top: 96px; padding: 40px 0; }
.foot::before {
  content: ""; display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ember), transparent);
  margin-bottom: 32px;
}
.foot .wrap { display: flex; flex-wrap: wrap; gap: 16px 40px; align-items: center; }
.foot .mono { color: var(--fog); font-size: 13px; }
.foot nav { display: flex; gap: 20px; margin-left: auto; }
.foot nav a { font-family: var(--mono); font-size: 13px; color: var(--fog2); }

/* ---- tables ---- */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); }
table.data { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 13px; }
table.data th {
  text-align: left; padding: 11px 14px; color: var(--fog);
  font-weight: 500; font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase;
  border-bottom: 1px solid var(--line); background: var(--ink2); white-space: nowrap;
}
table.data td { padding: 11px 14px; border-bottom: 1px solid var(--line); color: var(--fog2); white-space: nowrap; }
table.data tr:last-child td { border-bottom: 0; }
table.data tbody tr:hover td, table.data tr.row:hover td { background: var(--ink3); color: var(--text); cursor: pointer; }

/* ---- scroll reveal ---- */
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
[data-reveal].in { opacity: 1; transform: none; }
.stagger-1 { transition-delay: .1s !important; }
.stagger-2 { transition-delay: .2s !important; }
.stagger-3 { transition-delay: .3s !important; }
.stagger-4 { transition-delay: .4s !important; }
@media (prefers-reduced-motion: reduce) { [data-reveal] { opacity: 1; transform: none; } }

/* ---- feature card glows ---- */
.feat {
  position: relative;
  overflow: hidden;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.feat::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(232,118,58,0.12), transparent 40%);
  pointer-events: none;
  opacity: 0;
  transition: opacity .4s ease;
  z-index: 0;
  border-radius: inherit;
}
.feat:hover::before { opacity: 1; }
.feat:hover { border-color: var(--line2); transform: translateY(-3px); box-shadow: 0 0 30px -10px rgba(232,118,58,0.3); }
.feat > * { position: relative; z-index: 1; }

/* metric card glows (console) */
.metric { transition: box-shadow .25s; }
.metric:hover { box-shadow: 0 0 30px -10px rgba(232,118,58,0.3); }

/* chart bar glows */
.chart .b:hover { opacity: 1; box-shadow: 0 0 12px rgba(232,118,58,0.5); }

/* TOC active accent */
.toc a { transition: color .2s, border-left-color .2s, padding-left .2s; border-left: 2px solid transparent; padding-left: 0; }
.toc a.on {
  color: var(--ember);
  border-left-color: var(--ember);
  padding-left: 6px;
}

/* copy button on pre.code */
pre.code { position: relative; }
.copy-btn {
  position: absolute;
  top: 10px; right: 10px;
  font-family: var(--mono);
  font-size: 11px;
  background: transparent;
  border: 1px solid var(--line2);
  color: var(--fog2);
  border-radius: 6px;
  padding: 3px 8px;
  cursor: pointer;
  opacity: 0;
  transition: opacity .2s, border-color .2s, color .2s;
}
pre.code:hover .copy-btn { opacity: 1; }
.copy-btn:hover { border-color: var(--ember); color: var(--paper); }

@media (max-width: 820px) {
  .nav-toggle { display: flex; }
  .nav nav {
    display: none; flex-direction: column;
    position: absolute; top: calc(100% + 8px); left: 0; right: 0;
    background: color-mix(in srgb, var(--ink) 95%, transparent);
    backdrop-filter: blur(12px);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 12px;
    gap: 4px;
    z-index: 100;
  }
  .nav nav.open { display: flex; }
  .nav nav a { font-size: 14px; padding: 8px 12px; border-radius: 8px; }
  .nav nav a:hover { background: var(--ink3); }
}