/* tbard site. A retro look borrowed from terminal UIs (one accent color,
   pixel headings, bracketed labels, dot leaders), built as a normal web page. */

@font-face {
  font-family: "JetBrains Mono";
  src: url("fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("fonts/jetbrains-mono-latin-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "Silkscreen";
  src: url("fonts/silkscreen-latin-400-normal.woff2") format("woff2");
  font-display: swap;
}

:root {
  --bg: #0d0b08;
  --surface: #15120d;
  --raised: #1d1912;
  --text: #f1e6d2;
  --dim: #9b8f7a;
  --line: #5b5142;
  --accent: #ffb000;
  --on-accent: #1a1200;
  --accent-2: #ff7a45;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --pixel: "Silkscreen", var(--mono);
  --sidebar: 15.5rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 1.5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background:
    radial-gradient(circle at 1px 1px, rgba(255, 176, 0, 0.07) 1px, transparent 0) 0 0 / 14px 14px,
    var(--bg);
  color: var(--text);
  font: 15px/1.65 var(--mono);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; border-bottom: 1px dotted var(--line); }
a:hover { border-bottom-color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

::selection { background: var(--accent); color: var(--on-accent); }

/* ── Sidebar ─────────────────────────────────────────────────────────── */

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar);
  padding: 1.75rem 1.25rem 1rem;
  border-right: 1px solid var(--line);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  overflow-y: auto;
}

.logo { border: 0; display: block; }
.logo .mark { color: var(--accent); font-weight: 700; letter-spacing: 0.08em; }
.logo .sub { color: var(--dim); font-size: 0.85rem; }

.nav { list-style: none; margin: 0; padding: 0; counter-reset: nav; }
.nav li { counter-increment: nav; }
.nav a {
  display: flex;
  gap: 0.6rem;
  padding: 0.2rem 0.4rem;
  border: 0;
  color: var(--text);
}
.nav a::before { content: counter(nav); color: var(--dim); width: 1ch; }
.nav a:hover, .nav a.active { color: var(--accent); }
.nav a.active { background: var(--accent); color: var(--on-accent); }
.nav a.active::before { color: var(--on-accent); }

.sidebar-foot { margin-top: auto; color: var(--dim); font-size: 0.85rem; }
.sidebar-foot .langs { display: flex; gap: 0.5rem; margin-bottom: 0.6rem; }
.dot { color: var(--accent); }

/* ── Main ────────────────────────────────────────────────────────────── */

main {
  margin-left: var(--sidebar);
  padding: 2.5rem clamp(1.25rem, 4vw, 4rem) 6rem;
  max-width: calc(var(--sidebar) + 72rem);
}

section { padding: 2.5rem 0 1rem; }

h1, h2 {
  font-family: var(--pixel);
  font-weight: 400;
  color: var(--accent);
  text-transform: uppercase;
  line-height: 1;
  margin: 0;
}
h1 { font-size: clamp(3rem, 9vw, 6.5rem); letter-spacing: 0.02em; }
h2 { font-size: clamp(1.9rem, 4.5vw, 3rem); }
h3 { font-size: 1rem; color: var(--accent); margin: 2rem 0 0.6rem; text-transform: uppercase; letter-spacing: 0.06em; }

.rule { border: 0; border-top: 1px dashed var(--line); margin: 1.25rem 0 1.75rem; }

.lead { font-size: 1.1rem; max-width: 46rem; }
.muted { color: var(--dim); }

/* Header row: big title + bracketed figures */
.masthead { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 1.5rem; }
.stats { list-style: none; margin: 0; padding: 0; text-align: right; }
.stats li::before { content: "[ "; color: var(--line); }
.stats li::after { content: " ]"; color: var(--line); }
.stats .k { color: var(--dim); }
.stats .v { color: var(--accent); font-weight: 700; }

/* Bracketed buttons */
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.75rem 0; }
.btn {
  display: inline-flex;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  background: transparent;
  font: inherit;
  cursor: pointer;
}
.btn .key { color: var(--dim); }
.btn:hover { background: rgba(255, 176, 0, 0.1); }
.btn.primary { background: var(--accent); color: var(--on-accent); font-weight: 700; }
.btn.primary .key { color: var(--on-accent); opacity: 0.7; }

/* ├─ KEY value rows */
.tree { list-style: none; margin: 0; padding: 0; }
.tree li { display: grid; grid-template-columns: 2.2ch 11rem 1fr; gap: 0.5rem; padding: 0.15rem 0; }
.tree li::before { content: "├─"; color: var(--line); }
.tree li:last-child::before { content: "└─"; }
.tree .k { color: var(--accent); font-weight: 700; text-transform: uppercase; }

/* Dot leaders: label ........ value */
.leaders { list-style: none; margin: 0; padding: 0; }
.leaders li { display: flex; align-items: baseline; gap: 0.5rem; padding: 0.2rem 0; }
.leaders li .fill { flex: 1; border-bottom: 2px dotted var(--line); transform: translateY(-0.3rem); min-width: 2rem; }
.leaders .v { text-align: right; }

/* Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 1rem; }
.card { border: 1px solid var(--line); background: var(--surface); padding: 1.1rem 1.25rem; }
.card h3 { margin-top: 0; }
.card p { margin: 0.4rem 0 0; }
.card.invert { background: var(--accent); color: var(--on-accent); border: 3px solid var(--on-accent); outline: 3px solid var(--accent); }
.card.invert h3, .card.invert a, .card.invert .k { color: var(--on-accent); }
.card.invert .tree li::before { color: var(--on-accent); opacity: 0.6; }

.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.75rem; }
.chip { border: 1px solid currentColor; padding: 0 0.45rem; font-size: 0.85rem; }

/* Screenshots */
figure { margin: 1.5rem 0; }
figure img { display: block; width: 100%; height: auto; border: 1px solid var(--line); }
figcaption { color: var(--dim); font-size: 0.85rem; margin-top: 0.5rem; }
figcaption::before { content: "▸ "; color: var(--accent); }
.shots { display: grid; grid-template-columns: repeat(auto-fit, minmax(22rem, 1fr)); gap: 1rem; }

/* Commands */
.cmd {
  display: flex;
  align-items: flex-start;
  margin: 0.6rem 0;
  border-left: 3px solid var(--accent);
  background: var(--raised);
}
.cmd pre { flex: 1; min-width: 0; margin: 0; padding: 0.8rem 1rem; overflow-x: auto; }
.cmd code { font: inherit; }
.cmd pre::before { content: "$ "; color: var(--accent); }
.cmd .copy {
  flex: none;
  margin: 0.45rem 0.45rem 0 0;
  padding: 0.15rem 0.5rem;
  font-size: 0.8rem;
}
pre.block { background: var(--raised); border: 1px solid var(--line); padding: 0.9rem 1rem; overflow-x: auto; }
code { color: var(--text); }
p code, li code, td code { color: var(--accent); }

/* Tabs */
.tabs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0 0.5rem; }
.tabs button[aria-selected="true"] { background: var(--accent); color: var(--on-accent); }
[role="tabpanel"][hidden] { display: none; }

/* Tables */
table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: 0.92rem; }
th, td { text-align: left; padding: 0.5rem 0.75rem; border-bottom: 1px dashed var(--line); vertical-align: top; }
th { color: var(--accent); text-transform: uppercase; font-weight: 700; font-size: 0.8rem; letter-spacing: 0.06em; }
.table-wrap { overflow-x: auto; }

kbd {
  display: inline-block;
  min-width: 1.6rem;
  padding: 0 0.35rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  text-align: center;
  font: 700 0.85rem var(--mono);
}

details { border: 1px solid var(--line); background: var(--surface); margin: 0.6rem 0; }
summary { cursor: pointer; padding: 0.7rem 1rem; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::before { content: "[+] "; color: var(--accent); }
details[open] summary::before { content: "[−] "; }
details > div { padding: 0 1rem 0.9rem; }

.note { border: 1px dashed var(--accent-2); padding: 0.8rem 1rem; color: var(--text); }
.note strong { color: var(--accent-2); }

/* Bottom key bar */
.keybar {
  position: fixed;
  left: var(--sidebar);
  right: 0;
  bottom: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  padding: 0.45rem 1.5rem;
  border-top: 1px solid var(--line);
  background: var(--bg);
  color: var(--dim);
  font-size: 0.85rem;
}
.keybar b { color: var(--accent); font-weight: 700; }
.keybar .right { margin-left: auto; }

footer { color: var(--dim); font-size: 0.85rem; margin-top: 3rem; }

/* ── Small screens: the sidebar becomes a top bar ────────────────────── */

@media (max-width: 860px) {
  .sidebar { position: static; width: auto; border-right: 0; border-bottom: 1px solid var(--line); gap: 1rem; padding: 1.25rem; }
  .nav { display: flex; flex-wrap: wrap; gap: 0.25rem 0.75rem; }
  .sidebar-foot { margin-top: 0; }
  main { margin-left: 0; padding-bottom: 3rem; }
  .keybar { display: none; }
  .stats { text-align: left; }
  .tree li { grid-template-columns: 2.2ch 8rem 1fr; }
}