/* agent-talk website — static, dark terminal aesthetic */

:root {
  --bg: #0b0d10;
  --bg-elev: #12151a;
  --bg-card: #14181e;
  --border: #232a33;
  --border-soft: #1b212a;
  --fg: #e6e9ee;
  --fg-muted: #9aa4b2;
  --fg-dim: #6b7583;
  --accent: #7cc4ff;
  --accent-2: #a6f0c6;
  --accent-warm: #ffd27c;
  --danger: #ff8a8a;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --maxw: 1080px;
  --radius: 12px;
}

* { 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;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.mono { font-family: var(--mono); }

/* ---------- top nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 13, 16, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.nav .brand {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 16px;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav .brand .prompt { color: var(--accent-2); }
.nav .links { display: flex; gap: 22px; align-items: center; }
.nav .links a { color: var(--fg-muted); font-size: 15px; }
.nav .links a:hover { color: var(--fg); text-decoration: none; }
.nav .links .btn { font-size: 14px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 15px;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--fg);
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease;
}
.btn:hover { text-decoration: none; border-color: var(--accent); }
.btn-primary {
  background: var(--accent);
  color: #06263d;
  border-color: var(--accent);
  font-weight: 600;
}
.btn-primary:hover { background: #96d0ff; }

/* ---------- section scaffolding ---------- */
section { padding: 84px 0; border-bottom: 1px solid var(--border-soft); }
.section-eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin: 0 0 14px;
}
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; }
h2 { font-size: 34px; margin: 0 0 18px; }
h3 { font-size: 20px; margin: 0 0 8px; }
.lead { font-size: 19px; color: var(--fg-muted); max-width: 720px; }
/* the security section's intro spans the full content width like its section
   heading, rather than being capped at the default .lead measure. */
#security .lead { max-width: none; }

/* ---------- hero ---------- */
.hero { padding: 96px 0 72px; border-bottom: 1px solid var(--border-soft); }
.hero h1 { font-size: 54px; margin: 0 0 20px; }
.hero .tagline { color: var(--accent-2); }
.hero .lead { font-size: 21px; margin: 0 0 32px; }
.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.hero .sub { color: var(--fg-dim); font-size: 14px; font-family: var(--mono); }

/* ---------- terminal player frame ---------- */
.demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-top: 34px;
}
@media (max-width: 860px) { .demo-grid { grid-template-columns: 1fr; } }

.term {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,.35);
}
.term .term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
}
.term .dot { width: 11px; height: 11px; border-radius: 50%; }
.term .dot.r { background: #ff5f56; }
.term .dot.y { background: #ffbd2e; }
.term .dot.g { background: #27c93f; }
.term .term-title {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--fg-muted);
}
.term .player { line-height: 0; }

/* The quickstart terminal is full width but keeps a fixed body-size font
   (data-fit="none"), so its 76-column grid is narrower than the frame. Left-
   align it in the frame (the player otherwise centers it) so it reads like a
   normal terminal flush to the left edge, and add a little inner padding. */
#quickstart .term .ap-wrapper { justify-content: flex-start; }
#quickstart .term .player { padding: 4px 16px; }

/* asciinema-player theme tweaks so it sits flush in the frame */
.term .asciinema-player-theme-agenttalk,
.term .ap-player { background: #0b0d10; }

.demo-caption {
  font-size: 14px;
  color: var(--fg-dim);
  margin-top: 10px;
  font-family: var(--mono);
}

/* ---------- interactive skill browser ---------- */
.skillbrowser {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 22px;
  margin-top: 34px;
  align-items: start;
}
.skill-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.skill-item {
  display: block;
  width: 100%;
  text-align: left;
  font-family: var(--mono);
  font-size: 15px;
  color: var(--fg-muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 9px 14px;
  cursor: pointer;
  transition: color .12s ease, background .12s ease, border-color .12s ease;
}
.skill-item::before { content: "› "; color: var(--fg-dim); }
.skill-item:hover {
  color: var(--fg);
  background: var(--bg-elev);
  border-color: var(--border-soft);
}
.skill-item[aria-selected="true"] {
  color: var(--accent-2);
  background: var(--bg-card);
  border-color: var(--border);
}
.skill-item[aria-selected="true"]::before { color: var(--accent-2); }

/* the right-hand stage keeps the terminal at a readable, demo-sized width so
   its font matches the two-up demos rather than ballooning to full width. */
.skill-stage { min-width: 0; }
.skill-stage .term { max-width: 560px; }
.skill-stage .demo-caption { max-width: 560px; }

@media (max-width: 720px) {
  .skillbrowser { grid-template-columns: 1fr; }
  /* list becomes a horizontal, wrapping row of chips above the stage */
  .skill-list { flex-direction: row; flex-wrap: wrap; gap: 6px; }
  .skill-item { width: auto; }
  .skill-stage .term,
  .skill-stage .demo-caption { max-width: none; }
}

/* ---------- feature grid ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 36px;
}
/* A 4-card grid balances as 2x2 (never 3 + 1 hanging). The default 3-col rule
   above stays for 3-card grids (a clean single row). */
.cards-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) {
  .cards,
  .cards-2 { grid-template-columns: 1fr; }
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.card .ico { font-size: 22px; margin-bottom: 12px; }
.card p { color: var(--fg-muted); font-size: 15px; margin: 0; }

/* ---------- how it works / steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 34px; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr 1fr; } }
.step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.step .n {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 13px;
  margin-bottom: 10px;
}
.step p { color: var(--fg-muted); font-size: 14.5px; margin: 6px 0 0; }

/* ---------- code block ---------- */
.code {
  background: #090b0e;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  font-family: var(--mono);
  font-size: 14.5px;
  color: var(--fg);
  overflow-x: auto;
  line-height: 1.7;
}
.code .c { color: var(--fg-dim); }
.code .p { color: var(--accent-2); }

/* ---------- install tabs ---------- */
.installtabs { margin-top: 8px; }
.install-tabbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border-soft);
  padding-bottom: 10px;
}
.install-tab {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--fg-muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
  transition: color .12s ease, background .12s ease, border-color .12s ease;
}
.install-tab:hover {
  color: var(--fg);
  background: var(--bg-elev);
  border-color: var(--border-soft);
}
.install-tab[aria-selected="true"] {
  color: var(--accent-2);
  background: var(--bg-card);
  border-color: var(--border);
}
.install-panel .code { margin: 0; }

/* ---------- scenario / story ---------- */
.story {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 30px;
  margin-top: 26px;
}
.msg { display: flex; gap: 12px; margin: 16px 0; }
.msg .who {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  min-width: 92px;
  padding-top: 2px;
}
.msg.b .who { color: var(--accent-warm); }
.msg .bubble {
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--fg-muted);
  font-size: 15.5px;
}

/* ---------- comparison table ---------- */
.table-wrap { margin-top: 30px; overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
th { color: var(--fg); font-weight: 600; }
td { color: var(--fg-muted); }
td:first-child, th:first-child { font-family: var(--mono); color: var(--fg); }

/* ---------- faq ---------- */
.faq details {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-card);
  margin-bottom: 12px;
  padding: 0 20px;
}
.faq summary {
  cursor: pointer;
  padding: 16px 0;
  font-weight: 600;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "+ "; color: var(--accent); font-family: var(--mono); }
.faq details[open] summary::before { content: "− "; }
.faq details p { color: var(--fg-muted); margin: 0 0 16px; font-size: 15.5px; }

/* ---------- footer ---------- */
footer { padding: 48px 0 64px; border-bottom: none; }
footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
footer .fnote { color: var(--fg-dim); font-size: 14px; }
footer a { color: var(--fg-muted); }

.center { text-align: center; }
.mt-0 { margin-top: 0; }