/* TapeSim marketing site. Palette mirrors the desktop app
   (TapeSim.Ui/LoginView.fs): a dark trading-terminal look. */

:root {
  --bg:     #101218;
  --panel:  #181c24;
  --panel2: #1f242e;
  --text:   #c8ccd6;
  --muted:  #788090;
  --accent: #2eb888;
  --accent-dim: #25946d;
  --loss:   #e54b4b;
  --border: #2a303c;
  --maxw:   980px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ---- header / nav ---- */
header.site {
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0;
  background: rgba(16, 18, 24, 0.92);
  backdrop-filter: blur(6px);
  z-index: 10;
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.brand {
  font-weight: 700; font-size: 20px; color: var(--text);
  letter-spacing: 0.3px; display: flex; align-items: center; gap: 8px;
}
.brand .dot { color: var(--accent); }
nav a { color: var(--muted); margin-left: 22px; font-size: 15px; }
nav a:hover { color: var(--text); text-decoration: none; }

/* ---- buttons ---- */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 7px;
  font-weight: 600; font-size: 16px;
  cursor: pointer; border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}
.btn-primary, .content a.btn-primary { background: var(--accent); color: #06120d; }
.btn-primary:hover { background: var(--accent-dim); text-decoration: none; }
.btn-ghost, .content a.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--muted); text-decoration: none; }
/* keep button text from picking up the link color inside .content (a buttons) */
.content a.btn:hover { text-decoration: none; }

/* ---- hero ---- */
.hero { padding: 84px 0 56px; text-align: center; }
.hero h1 {
  font-size: 48px; line-height: 1.1; margin: 0 0 18px;
  color: var(--text); letter-spacing: -0.5px;
}
.hero h1 .accent { color: var(--accent); }
.hero p.lede {
  font-size: 20px; color: var(--muted); max-width: 640px;
  margin: 0 auto 30px;
}
.hero .cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero .pricenote { margin-top: 16px; color: var(--muted); font-size: 14px; }

/* ---- screenshot frame ---- */
.shot {
  max-width: var(--maxw); margin: 40px auto 0; padding: 0 24px;
}
.shot .frame {
  border: 1px solid var(--border); border-radius: 10px;
  background: var(--panel); overflow: hidden;
  box-shadow: 0 18px 50px rgba(0,0,0,0.45);
}
.shot .frame .bar {
  height: 32px; background: var(--panel2);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 12px; gap: 7px;
}
.shot .frame .bar i { width: 11px; height: 11px; border-radius: 50%; background: #39404c; display: inline-block; }
.shot .frame .placeholder {
  aspect-ratio: 16 / 9; display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 15px; text-align: center; padding: 24px;
  background:
    repeating-linear-gradient(90deg, transparent, transparent 38px, rgba(255,255,255,0.015) 38px, rgba(255,255,255,0.015) 39px),
    repeating-linear-gradient(0deg, transparent, transparent 38px, rgba(255,255,255,0.015) 38px, rgba(255,255,255,0.015) 39px);
}
.shot .frame img { display: block; width: 100%; height: auto; }

/* ---- sections ---- */
section { padding: 64px 0; border-top: 1px solid var(--border); }
section h2 { font-size: 30px; margin: 0 0 8px; color: var(--text); text-align: center; }
section .sub { text-align: center; color: var(--muted); margin: 0 auto 40px; max-width: 600px; }

/* ---- feature grid ---- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 9px; padding: 24px;
}
.feature h3 { margin: 0 0 8px; font-size: 18px; color: var(--text); }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }
.feature .ic { font-size: 22px; margin-bottom: 12px; }

/* ---- how it works ---- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.step {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 9px; padding: 22px; position: relative;
}
.step::before {
  counter-increment: step; content: counter(step);
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--accent); color: #06120d; font-weight: 700; margin-bottom: 12px;
}
.step h3 { margin: 0 0 6px; font-size: 16px; color: var(--text); }
.step p { margin: 0; color: var(--muted); font-size: 14px; }

/* ---- pricing ---- */
.pricing { display: flex; justify-content: center; }
.plan {
  background: var(--panel); border: 1px solid var(--accent);
  border-radius: 12px; padding: 36px 40px; text-align: center; max-width: 380px;
}
.plan .name { color: var(--accent); font-weight: 600; letter-spacing: 1px; text-transform: uppercase; font-size: 13px; }
.plan .price { font-size: 46px; font-weight: 700; color: var(--text); margin: 10px 0 2px; }
.plan .price span { font-size: 17px; color: var(--muted); font-weight: 400; }
.plan ul { list-style: none; padding: 0; margin: 22px 0; text-align: left; }
.plan li { padding: 7px 0; color: var(--muted); font-size: 15px; }
.plan li::before { content: "✓"; color: var(--accent); font-weight: 700; margin-right: 10px; }
.plan .btn { width: 100%; }
.plan .betanote { margin-top: 14px; font-size: 13px; color: var(--muted); }

/* ---- callout / note box ---- */
.note {
  background: var(--panel); border: 1px solid var(--border);
  border-left: 3px solid var(--accent); border-radius: 7px;
  padding: 16px 20px; color: var(--muted); font-size: 15px; margin: 18px 0;
}
.note.warn { border-left-color: var(--loss); }
.placeholder-tag {
  display: inline-block; background: rgba(229,75,75,0.12); color: var(--loss);
  border: 1px solid rgba(229,75,75,0.4); border-radius: 4px;
  padding: 1px 7px; font-size: 12px; font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

/* ---- legal / content pages ---- */
.content { padding: 56px 0; }
.content h1 { font-size: 34px; margin: 0 0 6px; }
.content .updated { color: var(--muted); font-size: 14px; margin-bottom: 32px; }
.content h2 { font-size: 22px; margin: 32px 0 10px; text-align: left; }
.content p, .content li { color: var(--muted); }
.content a { color: var(--accent); }

/* ---- download page ---- */
.dl-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin: 8px 0 28px; }
.dl {
  background: var(--panel); border: 1px solid var(--border); border-radius: 9px;
  padding: 24px; text-align: center;
}
.dl .os { font-size: 18px; color: var(--text); font-weight: 600; margin-bottom: 4px; }
.dl .meta { color: var(--muted); font-size: 13px; margin-bottom: 16px; }

code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  background: var(--panel2); border: 1px solid var(--border);
  border-radius: 4px; padding: 1px 6px; font-size: 14px; color: var(--text);
}

/* ---- footer ---- */
footer.site {
  border-top: 1px solid var(--border); padding: 32px 0; margin-top: 24px;
  color: var(--muted); font-size: 14px;
}
footer.site .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
footer.site a { color: var(--muted); margin-right: 18px; }
footer.site a:hover { color: var(--text); }

/* ---- docs (docs.html) ---- */
/* Two-column shell: a sticky sidebar nav + a content pane where the selected
   Markdown is rendered client-side (see docs.html). Reuses the site tokens. */
.docs-layout {
  max-width: 1180px; margin: 0 auto; padding: 40px 24px;
  display: grid; grid-template-columns: 240px 1fr; gap: 40px; align-items: start;
}
.docs-sidebar {
  position: sticky; top: 84px;
  border-right: 1px solid var(--border); padding-right: 16px;
}
.docs-sidebar h2 {
  font-size: 12px; text-transform: uppercase; letter-spacing: 1px;
  color: var(--muted); margin: 0 0 12px;
}
.docs-sidebar a {
  display: block; padding: 6px 10px; border-radius: 6px;
  color: var(--muted); font-size: 15px; line-height: 1.4;
}
.docs-sidebar a:hover { color: var(--text); background: var(--panel); text-decoration: none; }
.docs-sidebar a.active { color: var(--accent); background: var(--panel); font-weight: 600; }

.docs-content { min-width: 0; }                 /* let long <pre> scroll, not blow out the grid */
.docs-status { color: var(--muted); font-size: 15px; padding: 8px 0; }
.docs-status.err { color: var(--loss); }

/* Rendered-Markdown prose. Mirrors the .content look so docs match the legal pages. */
.docs-content h1 { font-size: 32px; margin: 0 0 14px; color: var(--text); }
.docs-content h2 {
  font-size: 23px; margin: 34px 0 10px; color: var(--text); text-align: left;
  border-top: 1px solid var(--border); padding-top: 26px;
}
.docs-content h3 { font-size: 18px; margin: 24px 0 8px; color: var(--text); }
.docs-content p, .docs-content li { color: var(--muted); }
.docs-content a { color: var(--accent); }
.docs-content ul, .docs-content ol { padding-left: 24px; }
.docs-content li { margin: 5px 0; }
.docs-content strong { color: var(--text); }
.docs-content img {
  max-width: 100%; height: auto; border: 1px solid var(--border);
  border-radius: 8px; margin: 16px 0;
}
.docs-content blockquote {
  margin: 16px 0; padding: 12px 18px; color: var(--muted);
  background: var(--panel); border-left: 3px solid var(--accent); border-radius: 6px;
}
.docs-content pre {
  background: var(--panel2); border: 1px solid var(--border); border-radius: 7px;
  padding: 14px 16px; overflow-x: auto; margin: 14px 0;
}
.docs-content pre code { background: none; border: none; padding: 0; font-size: 14px; color: var(--text); }
.docs-content table {
  border-collapse: collapse; width: 100%; margin: 16px 0; font-size: 15px;
}
.docs-content th, .docs-content td {
  border: 1px solid var(--border); padding: 8px 12px; text-align: left;
}
.docs-content th { background: var(--panel2); color: var(--text); }
.docs-content td { color: var(--muted); }
.docs-content kbd {
  font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 13px;
  background: var(--panel2); border: 1px solid var(--border); border-bottom-width: 2px;
  border-radius: 4px; padding: 1px 7px; color: var(--text);
}

/* ---- responsive ---- */
@media (max-width: 760px) {
  .hero h1 { font-size: 34px; }
  .features, .steps, .dl-grid { grid-template-columns: 1fr; }
  nav a { margin-left: 14px; }
  .brand { font-size: 18px; }
  /* Docs: stack the sidebar above the content. */
  .docs-layout { grid-template-columns: 1fr; gap: 20px; }
  .docs-sidebar {
    position: static; border-right: none; border-bottom: 1px solid var(--border);
    padding-right: 0; padding-bottom: 12px;
  }
}