/* naba-terminal — a bespoke dark terminal/technical theme. Hand-authored, no build step. */

:root {
  --bg:        #0b0f0c;
  --bg-panel:  #10161200;
  --panel:     #0f1512;
  --panel-2:   #131b17;
  --border:    #22302a;
  --border-hi: #2f4a3d;
  --fg:        #cfe8d8;
  --fg-dim:    #7f9a8b;
  --fg-mute:   #5b7367;
  --green:     #50fa7b;
  --cyan:      #56e1e6;
  --amber:     #f1c40f;
  --mag:       #c792ea;
  --radius:    8px;
  --mono: "SFMono-Regular", "JetBrains Mono", "Fira Code", ui-monospace, Menlo,
          Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 50% -10%, #0f1a14 0%, transparent 60%),
    var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.65;
  letter-spacing: 0.1px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.wrap { width: 100%; max-width: 920px; margin: 0 auto; padding: 0 20px; }

a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--green); text-decoration: underline; text-underline-offset: 3px; }

.dim { color: var(--fg-dim); }
.glyph { color: var(--green); }

/* ---------- header ---------- */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(9, 13, 11, 0.85);
  backdrop-filter: blur(6px);
  position: sticky; top: 0; z-index: 10;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 58px; }
.brand { font-weight: 700; font-size: 18px; color: var(--fg); }
.brand .prompt { color: var(--green); }
.brand .prompt::before { content: "> "; color: var(--fg-mute); }
.brand .cursor { display: inline-block; width: 9px; height: 1.05em; margin-left: 2px;
  background: var(--green); vertical-align: -2px; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav-link {
  color: var(--fg-dim); padding: 6px 10px; border-radius: 6px; font-size: 14px;
  border: 1px solid transparent;
}
.nav-link:hover { color: var(--green); text-decoration: none; border-color: var(--border-hi);
  background: var(--panel); }
.ext-mark { color: var(--fg-mute); margin-left: 3px; font-size: 12px; }

/* ---------- main ---------- */
main.wrap { flex: 1 0 auto; padding-top: 44px; padding-bottom: 56px; }

/* ---------- hero (home) ---------- */
.hero { padding: 18px 0 8px; }
.hero-name { font-size: 44px; margin: 0 0 6px; letter-spacing: -0.5px; }
.hero-name .glyph { color: var(--green); margin-right: 8px; }
.hero-sub { color: var(--cyan); font-size: 18px; margin: 0 0 14px; }
.hero-desc { color: var(--fg-dim); max-width: 680px; margin: 0 0 24px; }

.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 22px 0 8px; }
.btn {
  display: inline-block; padding: 9px 16px; border: 1px solid var(--border-hi);
  border-radius: 6px; color: var(--fg); background: var(--panel); font-size: 14px;
}
.btn:hover { border-color: var(--green); color: var(--green); text-decoration: none; }
.btn-primary { border-color: var(--green); color: var(--bg); background: var(--green); font-weight: 600; }
.btn-primary:hover { background: var(--cyan); border-color: var(--cyan); color: var(--bg); }

/* ---------- terminal block ---------- */
.term {
  border: 1px solid var(--border-hi); border-radius: var(--radius); overflow: hidden;
  background: var(--panel); margin: 8px 0 4px; box-shadow: 0 8px 30px rgba(0,0,0,0.35);
}
.term-bar {
  display: flex; align-items: center; gap: 7px; padding: 8px 12px;
  background: var(--panel-2); border-bottom: 1px solid var(--border);
}
.term-bar .dot { width: 11px; height: 11px; border-radius: 50%; background: #2b3a32; display: inline-block; }
.term-bar .dot:nth-child(1) { background: #ff5f56; }
.term-bar .dot:nth-child(2) { background: #ffbd2e; }
.term-bar .dot:nth-child(3) { background: #27c93f; }
.term-title { margin-left: auto; color: var(--fg-mute); font-size: 12px; }
.term-body { margin: 0; padding: 16px; overflow-x: auto; color: var(--fg); font-size: 14px; white-space: pre; }
.ps1 { color: var(--green); user-select: none; margin-right: 8px; }

/* ---------- feature cards ---------- */
.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 40px; }
.card {
  display: block; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 18px 16px; background: linear-gradient(180deg, var(--panel), #0d130f);
  color: inherit; text-decoration: none; transition: border-color .12s, transform .12s;
}
.card:hover { border-color: var(--green); text-decoration: none; transform: translateY(-2px); }
.card h3 { margin: 0 0 8px; font-size: 16px; color: var(--fg); display: flex; align-items: center; }
.card-arrow { margin-left: auto; color: var(--fg-mute); transition: color .12s, transform .12s; }
.card:hover .card-arrow { color: var(--green); transform: translateX(3px); }
.card h3 .glyph { color: var(--cyan); margin-right: 6px; }
.card p { margin: 0 0 12px; color: var(--fg-dim); font-size: 13.5px; }
.mini { margin: 0; padding: 9px 12px; background: #0a0e0c; border: 1px solid var(--border);
  border-radius: 6px; color: var(--green); font-size: 12.5px; overflow-x: auto; }

/* ---------- content pages ---------- */
.page-head { border-bottom: 1px solid var(--border); padding-bottom: 16px; margin-bottom: 26px; }
.page-title { font-size: 32px; margin: 0; }
.page-title .glyph { color: var(--green); margin-right: 8px; }
.page-sub { color: var(--fg-dim); margin: 8px 0 0; }

.page-body { font-size: 15px; }
.page-body h2 {
  font-size: 21px; margin: 40px 0 12px; padding-left: 14px; color: var(--fg);
  border-left: 3px solid var(--green);
}
.page-body h3 { font-size: 17px; margin: 28px 0 8px; color: var(--cyan); }
.page-body p { color: var(--fg); }
.page-body ul, .page-body ol { color: var(--fg); }
.page-body li { margin: 4px 0; }
.page-body strong { color: #eafff2; }
.page-body hr { border: none; border-top: 1px solid var(--border); margin: 32px 0; }

.page-body a { border-bottom: 1px dotted transparent; }
.page-body a:hover { border-bottom-color: var(--green); }

/* inline + block code */
.page-body :not(pre) > code {
  background: #0a0e0c; border: 1px solid var(--border); border-radius: 4px;
  padding: 1px 6px; color: var(--green); font-size: 13px;
}
.page-body pre {
  background: var(--panel); border: 1px solid var(--border-hi); border-radius: var(--radius);
  padding: 16px; overflow-x: auto; font-size: 13.5px; line-height: 1.55;
  box-shadow: 0 6px 22px rgba(0,0,0,0.3);
}
.page-body pre code { color: #d6f5e2; background: none; border: none; padding: 0; }
.highlight { background: var(--panel) !important; }

/* tables */
.page-body table { border-collapse: collapse; width: 100%; margin: 20px 0; font-size: 13.5px; }
.page-body th, .page-body td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.page-body th { background: var(--panel-2); color: var(--cyan); }
.page-body tr:nth-child(even) td { background: #0d130f; }

/* blockquote / callout */
.page-body blockquote {
  margin: 20px 0; padding: 12px 16px; border-left: 3px solid var(--amber);
  background: #14120a; color: var(--fg); border-radius: 0 6px 6px 0;
}
.page-body blockquote p { margin: 6px 0; color: #f6e6b8; }

/* sample-output image figures on the usage page */
.page-body img { max-width: 100%; height: auto; border: 1px solid var(--border-hi); border-radius: 6px; }
figure.sample { margin: 14px 0 26px; }
figure.sample figcaption { color: var(--fg-mute); font-size: 12.5px; margin-top: 8px; line-height: 1.5; }
.sample-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }

/* caption annotations: prompt + model */
.cap-prompt { display: block; color: var(--fg-dim); }
.cap-model { display: inline-block; margin-top: 3px; padding: 1px 7px; border: 1px solid var(--border);
  border-radius: 4px; background: #0a0e0c; color: var(--cyan); font-size: 11.5px; }

/* before/after input-output pairs (edit, restore) */
.io { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 14px 0 26px; }
.io figure.sample { margin: 0; }
.io-tag { display: inline-block; margin-right: 8px; padding: 1px 7px; border-radius: 4px;
  font-size: 11px; text-transform: uppercase; letter-spacing: .5px; background: var(--panel-2);
  color: var(--fg-mute); border: 1px solid var(--border); }
.io-tag.io-after { color: var(--bg); background: var(--green); border-color: var(--green); }
@media (max-width: 560px) { .io { grid-template-columns: 1fr; } }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--border); background: rgba(9,13,11,0.6); flex-shrink: 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px;
  flex-wrap: wrap; padding: 22px 20px; font-size: 12.5px; }
.footer-links { display: flex; gap: 16px; }
.footer-links a { color: var(--fg-dim); }
.footer-links a:hover { color: var(--green); text-decoration: none; }

/* ---------- 404 ---------- */
.notfound { text-align: center; padding: 60px 0; }
.notfound .code { font-size: 72px; color: var(--green); margin: 0; }
.notfound p { color: var(--fg-dim); }

/* ---------- responsive ---------- */
@media (max-width: 640px) {
  .features { grid-template-columns: 1fr; }
  .hero-name { font-size: 34px; }
  .header-inner { height: auto; padding: 10px 0; flex-direction: column; align-items: flex-start; gap: 8px; }
  .nav { gap: 2px; }
}