:root {
  color-scheme: dark light;
  --bg: #0b0d10;
  --bg-elev: #14171b;
  --border: #23272d;
  --text: #e8eaed;
  --text-dim: #9aa2ad;
  --accent: #5fd0a3;
  --accent-dim: #2e5c48;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #fafaf9;
    --bg-elev: #ffffff;
    --border: #e5e5e3;
    --text: #16181c;
    --text-dim: #5a6068;
    --accent: #1f8a5f;
    --accent-dim: #d6f0e3;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
section[id] { scroll-margin-top: 84px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.55;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 24px; }
code, .mono { font-family: var(--mono); }

header.site {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; padding-bottom: 14px; gap: 16px; flex-wrap: wrap;
}
header.site .brand { font-weight: 700; letter-spacing: -0.02em; }
header.site nav { display: flex; gap: 18px; flex-wrap: wrap; font-size: 0.92rem; }
header.site nav a { color: var(--text-dim); }
header.site nav a:hover { color: var(--text); }
header.site nav a.gh-stars { display: inline-flex; align-items: center; gap: 5px; }
header.site nav a.gh-stars:hover { text-decoration: none; }
header.site nav a.gh-stars svg { width: 14px; height: 14px; flex: none; stroke: currentColor; fill: none; }

.hero { padding: 72px 0 48px; }
.hero h1 { font-size: clamp(1.9rem, 4.2vw, 2.7rem); line-height: 1.15; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero p.lead { font-size: 1.15rem; color: var(--text-dim); max-width: 60ch; margin: 0 0 20px; }
.specs { font-family: var(--mono); font-size: 0.85rem; color: var(--text-dim); margin-bottom: 28px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 8px; font-size: 0.95rem; font-weight: 600;
  border: 1px solid var(--border);
}
.btn:hover { text-decoration: none; }
.btn.primary { background: var(--accent); color: #06110c; border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { color: var(--text); background: var(--bg-elev); }
.btn.ghost:hover { border-color: var(--accent); }

.kofi-badge-wrap { text-align: center; margin-top: 28px; }
.kofi-badge {
  display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap;
  justify-content: center;
  border: 1px solid var(--border); border-radius: 10px;
  background: var(--bg-elev);
  padding: 10px 18px;
  font-size: 0.9rem; color: var(--text-dim);
}
.kofi-badge-icon { font-size: 1rem; }

#support { text-align: center; }
.support-eyebrow {
  font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--text-dim); margin-bottom: 16px;
}
.support-logo { font-size: 1.4rem; font-weight: 800; margin-bottom: 20px; }
.support-title {
  font-size: clamp(1.4rem, 3.4vw, 1.9rem); max-width: 32ch;
  margin: 0 auto 26px; letter-spacing: -0.01em;
}
.support-copy { max-width: 62ch; margin: 0 auto; color: var(--text-dim); text-align: left; }
.support-copy p { margin: 0 0 16px; }
.support-copy a { color: var(--accent); }
#support .kofi-badge-wrap { margin-top: 32px; }

.status-badge {
  display: inline-block; font-family: var(--mono); font-size: 0.78rem;
  color: var(--accent); background: var(--accent-dim);
  border-radius: 6px; padding: 3px 9px; margin-bottom: 18px;
}

section { padding: 44px 0; border-top: 1px solid var(--border); }
section h2 { font-size: 1.5rem; letter-spacing: -0.01em; margin: 0 0 8px; }
section p.section-sub { color: var(--text-dim); margin: 0 0 28px; max-width: 65ch; }

.diagram {
  font-family: var(--mono); font-size: 0.82rem; white-space: pre;
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 10px;
  padding: 20px; overflow-x: auto; color: var(--text-dim);
}
.diagram .hl { color: var(--accent); }

.steps { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 640px) { .steps { grid-template-columns: 1fr; } }
.step {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 12px;
  padding: 22px;
}
.step .tag { font-family: var(--mono); font-size: 0.75rem; color: var(--accent); margin-bottom: 6px; display: block; }
.step h3 { margin: 0 0 8px; font-size: 1.1rem; }
.step p { color: var(--text-dim); margin: 0 0 14px; font-size: 0.92rem; }

.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px 32px; }
@media (max-width: 640px) { .features { grid-template-columns: 1fr; } }
.feature { padding: 14px 0; border-bottom: 1px solid var(--border); display: flex; gap: 14px; }
.feature .num { font-family: var(--mono); color: var(--text-dim); font-size: 0.8rem; padding-top: 2px; min-width: 26px; }
.feature h4 { margin: 0 0 4px; font-size: 0.98rem; }
.feature p { margin: 0; color: var(--text-dim); font-size: 0.88rem; }

table.compare { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
table.compare th, table.compare td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; }
table.compare th { color: var(--text-dim); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }
table.compare td.yes { color: var(--accent); }
table.compare td.no { color: var(--text-dim); }
table.compare tr.self { background: var(--accent-dim); }
.table-scroll { overflow-x: auto; }

details.faq { border-bottom: 1px solid var(--border); padding: 14px 0; }
details.faq summary { cursor: pointer; font-weight: 600; font-size: 0.98rem; list-style: none; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::before { content: "+ "; color: var(--accent); font-family: var(--mono); }
details.faq[open] summary::before { content: "− "; }
details.faq p { color: var(--text-dim); margin: 10px 0 0; font-size: 0.92rem; }

.gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 640px) { .gallery { grid-template-columns: 1fr; } }
.gallery figure { margin: 0; }
.gallery img {
  display: block; width: 100%; border-radius: 12px; border: 1px solid var(--border);
}
.gallery figcaption { color: var(--text-dim); font-size: 0.85rem; margin-top: 10px; }

footer { padding: 40px 0 60px; color: var(--text-dim); font-size: 0.85rem; }
footer .links { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 14px; }
footer .links a { color: var(--text-dim); }
footer .links a:hover { color: var(--accent); }