/* xlii landing — palette mirrors xlii/face_assets/css/face.css (dark) */

:root {
  --bg: #101014;
  --bg-raised: #17171d;
  --bg-input: #1c1c24;
  --fg: #d8d8de;
  --fg-dim: #7a7a85;
  --edge: #2a2a33;
  --accent: #c678dd;
  --code: #7ec87e;
  --warn: #d0b060;
  --error: #d07070;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Inter, Roboto, sans-serif;
  --max: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--fg); text-decoration: none; border-bottom: 1px solid var(--edge); }
a:hover { border-bottom-color: var(--accent); }
code, pre, kbd { font-family: var(--mono); }
code { background: var(--bg-input); padding: 0.1em 0.4em; border-radius: 4px; font-size: 0.9em; }
pre { margin: 0; }
h1, h2, h3 { line-height: 1.2; margin: 0; font-weight: 600; letter-spacing: -0.01em; }
h2 { font-size: 1.75rem; margin-bottom: 0.4rem; }
h3 { font-size: 1.05rem; margin-bottom: 0.35rem; }
p { margin: 0.5rem 0 0; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.5rem; }
.dim { color: var(--fg-dim); }
.lead { font-size: 1.15rem; color: var(--fg-dim); max-width: 60ch; }
section { padding: 4.5rem 0; border-top: 1px solid var(--edge); }
section:first-of-type { border-top: 0; }

/* nav */
nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 0;
  font-size: 0.95rem;
}
nav .brand { font-family: var(--mono); font-weight: 600; border: 0; letter-spacing: 0.12em; margin-right: 1.5rem; }
nav ul { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; list-style: none; margin: 0; padding: 0; justify-content: flex-end; }
nav a { border: 0; color: var(--fg-dim); }
nav a:hover { color: var(--fg); }

/* hero */
.hero { padding: 4rem 0 3.5rem; border-top: 0; }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); max-width: 22ch; }
.hero .lead { margin-top: 1.25rem; }
.cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; align-items: center; }
.btn {
  display: inline-block; padding: 0.7rem 1.15rem; border-radius: 6px;
  border: 1px solid var(--edge-btn, #454552); background: var(--bg-raised);
  font-weight: 500;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #14101a; }
.btn.primary:hover { filter: brightness(1.08); }
.install {
  display: inline-flex; align-items: center; gap: 0.75rem;
  background: var(--bg-input); border: 1px solid var(--edge); border-radius: 6px;
  padding: 0.65rem 1rem; font-family: var(--mono); font-size: 0.95rem;
}
.install .prompt { color: var(--fg-dim); user-select: none; }

/* terminal */
.term {
  margin-top: 3rem;
  background: var(--bg-raised);
  border: 1px solid var(--edge);
  border-radius: 8px;
  overflow: hidden;
  font-family: var(--mono);
  font-size: 0.92rem;
  line-height: 1.55;
}
.term .bar {
  display: flex; gap: 0.5rem; align-items: center;
  padding: 0.55rem 0.9rem; border-bottom: 1px solid var(--edge);
  color: var(--fg-dim); font-size: 0.8rem;
}
.term .bar span.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--edge); display: inline-block; }
.term .bar .title { margin-left: auto; }
.term pre { padding: 1rem 1.1rem 1.1rem; overflow-x: auto; white-space: pre; }
.term .p { color: var(--fg-dim); }
.term .sh { color: var(--fg); }
.term .ask { color: var(--accent); }
.term .cmd { color: var(--code); }
.term .out { color: var(--fg-dim); }
.term .status { color: var(--warn); }
.term .gate { color: var(--error); }

/* grids */
.grid { display: grid; gap: 1.25rem; margin-top: 2rem; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.two { grid-template-columns: repeat(2, 1fr); }
.grid.four { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--bg-raised); border: 1px solid var(--edge); border-radius: 8px;
  padding: 1.35rem 1.4rem;
}
.card p { color: var(--fg-dim); font-size: 0.97rem; }
.card .k { font-family: var(--mono); font-size: 0.78rem; color: var(--accent); letter-spacing: 0.06em; text-transform: uppercase; }
.card .k.code { color: var(--code); }

/* is / is not */
.isnt ul { margin: 0.75rem 0 0; padding-left: 1.1rem; }
.isnt li { margin: 0.35rem 0; color: var(--fg-dim); }
.isnt li b { color: var(--fg); font-weight: 500; }

/* ladder */
.ladder {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  margin-top: 2rem; border: 1px solid var(--edge); border-radius: 8px; overflow: hidden;
  font-family: var(--mono); font-size: 0.9rem;
}
.ladder div { padding: 1rem 1.1rem; background: var(--bg-raised); border-left: 1px solid var(--edge); }
.ladder div:first-child { border-left: 0; }
.ladder .t { display: block; font-weight: 600; margin-bottom: 0.3rem; }
.ladder .s { display: block; color: var(--fg-dim); font-family: var(--sans); font-size: 0.9rem; }
.ladder .l0 .t { color: var(--code); }
.ladder .l1 .t { color: var(--fg); }
.ladder .l2 .t { color: var(--warn); }
.ladder .l3 .t { color: var(--error); }
.bullets { margin: 1.5rem 0 0; padding-left: 1.1rem; }
.bullets li { margin: 0.45rem 0; color: var(--fg-dim); }
.bullets li b { color: var(--fg); font-weight: 500; }

/* surfaces */
.surf { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--edge); border: 1px solid var(--edge); border-radius: 8px; overflow: hidden; margin-top: 2rem; }
.surf div { background: var(--bg-raised); padding: 1.1rem 1.15rem; }
.surf .n { font-family: var(--mono); font-size: 0.85rem; color: var(--fg); display: block; margin-bottom: 0.25rem; }
.surf .d { font-size: 0.88rem; color: var(--fg-dim); }

/* honest strip */
.honest { background: var(--bg-raised); border: 1px solid var(--edge); border-left: 3px solid var(--warn); border-radius: 8px; padding: 1.35rem 1.5rem; margin-top: 2rem; }
.honest p { color: var(--fg-dim); }
.honest b { color: var(--fg); font-weight: 500; }

/* footer */
footer { border-top: 1px solid var(--edge); padding: 2rem 0 3rem; color: var(--fg-dim); font-size: 0.9rem; }
footer .row { display: flex; flex-wrap: wrap; gap: 1.5rem; justify-content: space-between; }
footer ul { display: flex; gap: 1.25rem; list-style: none; margin: 0; padding: 0; }
footer a { color: var(--fg-dim); border: 0; }
footer a:hover { color: var(--fg); }

@media (max-width: 860px) {
  .grid.three, .grid.four, .grid.two { grid-template-columns: 1fr; }
  .ladder { grid-template-columns: 1fr 1fr; }
  .ladder div { border-top: 1px solid var(--edge); }
  .surf { grid-template-columns: 1fr 1fr; }
  nav ul { gap: 0.4rem 1rem; font-size: 0.9rem; }
  section { padding: 3.25rem 0; }
}
@media (max-width: 520px) {
  .ladder, .surf { grid-template-columns: 1fr; }
  .ladder div { border-left: 0; }
}