/* Kage site shared tokens and primitives — V2 "receipts" theme.
   Used by docs/index.html, docs/guide.html, docs/releases.html, docs/benchmarks.html.
   Dark-first product look with editorial serif display type; verified-green is
   reserved for gains/primary action. One look everywhere, like the product. */

:root {
  color-scheme: dark light;

  /* Surface — dark-first: the product look. Light is the variant. */
  --bg: #121413;
  --paper: #1a1d1b;
  --paper-2: #212522;
  --line: #2c302c;
  --line-strong: #41463f;

  /* Ink */
  --ink: #edefe9;
  --muted: #a4aba1;
  --faint: #767d74;

  /* Accents — verified green reserved for gains + primary action. */
  --green: #43c98a;
  --green-strong: #5fdca0;
  --green-soft: rgba(67, 201, 138, 0.12);

  --code: #6fb4e8;
  --memory: #b095e8;
  --warn: #d9a93f;
  --danger: #e07a8c;

  /* Code — terminals stay dark in both schemes, like a printed receipt. */
  --code-bg: #0e1110;
  --code-text: #cfe0d4;

  /* Type — editorial contrast: serif display, sans body, mono data.
     Webfonts (Fraunces / Inter / JetBrains Mono) are loaded per-page;
     stacks degrade gracefully without them. */
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  --serif: "Fraunces", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia,
    "Times New Roman", serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", monospace;

  /* Radius — soft, premium scale (controls < panels < cards < hero artifacts). */
  --r-control: 10px;
  --r-panel: 14px;
  --r-card: 16px;
  --r-hero: 22px;

  /* Elevation + hairlines */
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.2), 0 14px 36px rgba(0, 0, 0, 0.3);
  --shadow-pop: 0 24px 60px rgba(0, 0, 0, 0.45);
  --glow-green: 0 10px 28px rgba(67, 201, 138, 0.22);
  --hairline-green: rgba(67, 201, 138, 0.32);
}

/* One look, like the product: dark everywhere. (Light tokens retired 2026-06-12.) */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 14px/1.55 var(--sans);
  letter-spacing: 0;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--green); }

h1, h2, h3, h4, p { margin: 0; }
ul { margin: 0; padding-left: 22px; }
li { color: var(--muted); font: 400 15px/1.7 var(--sans); }

code {
  padding: 1px 5px;
  border: 1px solid var(--line);
  border-radius: var(--r-control);
  background: var(--paper-2);
  color: var(--code);
  font: 500 13px/1.55 var(--mono);
}

pre {
  margin: 0;
  overflow-x: auto;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: var(--code-bg);
  color: var(--code-text);
  font: 400 13px/1.65 var(--mono);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

pre code {
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 60px;
  padding: 0 clamp(18px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 700 16px/1 var(--serif);
}

.brand img {
  width: 28px;
  height: 28px;
  padding: 4px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-control);
  background: var(--ink);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font: 500 14px/1 var(--sans);
}

.nav-links a[aria-current="page"] {
  color: var(--ink);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 14px;
  border: 1px solid var(--green);
  border-radius: var(--r-control);
  background: var(--green);
  color: var(--paper);
  font: 600 13px/1 var(--sans);
}

.nav-cta:hover { color: var(--paper); background: var(--green-strong); }

/* Wrap */
.wrap {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
}

.wrap-narrow {
  width: min(880px, calc(100% - 32px));
  margin: 0 auto;
}

/* Sections */
.section {
  padding: 76px 0;
  border-top: 1px solid var(--line);
}

.section:first-of-type { border-top: 0; }

.section-head { max-width: 760px; margin-bottom: 24px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--faint);
  font: 600 12px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

h1 {
  font: 560 clamp(42px, 6.2vw, 78px) / 1.02 var(--serif);
  font-variation-settings: "opsz" 80;
  letter-spacing: -0.022em;
}

h2 {
  font: 560 clamp(27px, 3.6vw, 42px) / 1.1 var(--serif);
  font-variation-settings: "opsz" 48;
  letter-spacing: -0.012em;
}

h3 { font: 600 17px/1.3 var(--sans); }
h4 { font: 600 14px/1.3 var(--sans); }

.lede {
  max-width: 720px;
  margin-top: 14px;
  color: var(--muted);
  font: 400 17px/1.6 var(--sans);
}

p { color: var(--muted); font: 400 15px/1.65 var(--sans); }

/* Buttons */
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  font: 600 14px/1 var(--sans);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.button:hover { color: var(--ink); border-color: var(--faint); transform: translateY(-1px); box-shadow: var(--shadow-card); }

.button.primary {
  border-color: var(--green);
  background: var(--green);
  color: var(--paper);
  box-shadow: var(--glow-green);
}

.button.primary:hover { color: var(--paper); background: var(--green-strong); border-color: var(--green-strong); box-shadow: var(--glow-green); }

/* Cards */
.card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: var(--paper);
  box-shadow: var(--shadow-card);
}

.card h3 { font: 600 16px/1.3 var(--sans); }
.card p { margin-top: 8px; }

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.cards-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

/* Terminal */
.terminal {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-card);
  background: var(--code-bg);
}

.terminal-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: #9aa49c;
  font: 500 12px/1 var(--mono);
}

.terminal pre { border: 0; border-radius: 0; }

/* Receipt — the gains proof artifact, shared by index hero and viewer mock. */
.receipt {
  overflow: hidden;
  border: 1px solid var(--hairline-green);
  border-radius: var(--r-hero);
  background: var(--paper);
  box-shadow: var(--shadow-pop);
}
.receipt .r-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 20px;
  border-bottom: 1px dashed var(--line-strong);
  color: var(--faint);
  font: 600 11px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.receipt .r-hero { padding: 22px 20px 16px; }
.receipt .r-hero .big { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.receipt .r-hero .big b { font: 600 44px/0.95 var(--serif); letter-spacing: -0.02em; color: var(--green); font-variant-numeric: tabular-nums; }
.receipt .r-hero .big .unit { color: var(--muted); font: 500 13px/1.3 var(--sans); }
.receipt .r-hero .big .dollars { color: var(--ink); font: 600 18px/1 var(--serif); }
.receipt .r-lines { border-top: 1px dashed var(--line-strong); padding: 12px 20px 14px; }
.receipt .r-line { display: flex; align-items: baseline; gap: 10px; padding: 4px 0; font: 400 13px/1.5 var(--sans); color: var(--ink); }
.receipt .r-line .dots { flex: 1; border-bottom: 1px dotted var(--line-strong); transform: translateY(-4px); }
.receipt .r-line b { font: 600 13px/1 var(--mono); font-variant-numeric: tabular-nums; }
.receipt .r-line b.warn { color: var(--warn); }
.receipt .r-line b.gain { color: var(--green); }
.receipt .r-foot {
  border-top: 1px dashed var(--line-strong);
  padding: 10px 20px;
  color: var(--faint);
  font: 400 10.5px/1.5 var(--mono);
}

/* Footer */
.footer {
  padding: 26px 0 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font: 400 13px/1.5 var(--sans);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.footer a { color: var(--muted); }
.footer a:hover { color: var(--ink); }

/* Demo frame */
.demo-frame {
  margin-top: 22px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-card);
  overflow: hidden;
  background: var(--code-bg);
}
.demo-frame img { display: block; width: 100%; height: auto; }
.demo-cap { margin-top: 10px; color: var(--faint); font: 400 13px/1.5 var(--sans); text-align: center; }

/* Packet flow pipeline */
.pflow {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 10px;
  margin-top: 26px;
}
.pnode {
  flex: 1 1 0;
  min-width: 150px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: var(--paper);
}
.pnode .pk {
  display: block;
  color: var(--faint);
  font: 600 10px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.pnode b { color: var(--ink); font: 600 14px/1.3 var(--sans); }
.pnode p { margin-top: 6px; color: var(--muted); font: 400 12.5px/1.5 var(--sans); }
.pnode .out { margin-top: 9px; font: 600 11.5px/1.4 var(--mono); }
.pnode .out.bad { color: var(--danger); }
.pnode .out.warn { color: var(--warn); }
.pnode .out.good { color: var(--green); }
.pnode.is-store { border-color: var(--line-strong); }
.parrow {
  align-self: center;
  flex: 0 0 auto;
  color: var(--green);
  font: 700 16px/1 var(--sans);
  opacity: 0.7;
}

/* Install command chip — the hero one-liner. */
.cmd {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 560px;
  margin-top: 18px;
  padding: 13px 18px;
  border: 1px solid var(--hairline-green);
  border-radius: var(--r-panel);
  background: var(--code-bg);
  color: var(--code-text);
  font: 500 14px/1.4 var(--mono);
  box-shadow: var(--shadow-card);
  overflow-x: auto;
  white-space: nowrap;
}
.cmd .ps1 { color: var(--green-strong); user-select: none; }
.cmd button {
  flex: 0 0 auto;
  margin-left: auto;
  padding: 5px 11px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: transparent;
  color: #9aa49c;
  font: 600 11px/1 var(--sans);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.cmd button:hover { color: #fff; border-color: rgba(255, 255, 255, 0.4); }

/* Comparison table — Kage column highlighted. */
.compare-scroll { overflow-x: auto; margin-top: 8px; }
.compare {
  width: 100%;
  min-width: 640px;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  overflow: hidden;
  background: var(--paper);
  box-shadow: var(--shadow-card);
  font: 400 14px/1.5 var(--sans);
}
.compare th, .compare td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  text-align: center;
  color: var(--muted);
}
.compare tr:last-child th, .compare tr:last-child td { border-bottom: 0; }
.compare thead th {
  background: var(--paper-2);
  color: var(--ink);
  font: 600 13px/1.3 var(--sans);
}
.compare th[scope="row"] {
  text-align: left;
  color: var(--ink);
  font: 500 13.5px/1.45 var(--sans);
}
.compare .is-kage {
  background: var(--green-soft);
  color: var(--ink);
  font-weight: 600;
}
.compare thead .is-kage { color: var(--green); font-weight: 700; }
.compare .yes { color: var(--green); font-weight: 700; }
.compare .no { color: var(--faint); }

/* Stat strip — quiet proof chips under the hero. */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 48px;
}
.stat-chip {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: var(--paper);
  box-shadow: var(--shadow-card);
}
.stat-chip strong { display: block; font: 600 22px/1 var(--serif); color: var(--ink); }
.stat-chip span { display: block; margin-top: 6px; color: var(--muted); font: 400 12.5px/1.45 var(--sans); }

/* Mobile */
@media (max-width: 820px) {
  .stat-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav-links { display: none; }
  .cards, .cards-2 { grid-template-columns: 1fr; }
  .footer-inner { display: grid; }
  .pflow { flex-direction: column; }
  .parrow { transform: rotate(90deg); align-self: center; }
}