/* ── Algrow Skills marketplace ─────────────────────────────────────────────
   Near-black directory design: pixel display font, Geist Mono chrome,
   hairline borders, graph-grid hero. Dark default; [data-theme="light"]
   flips the palette. */

:root {
  --bg: hsl(0 0% 2%);
  --bg-raise: hsl(0 0% 4%);
  --fg: hsl(0 0% 93%);
  --card: hsl(0 0% 5.5%);
  --card-hover: hsl(0 0% 8%);
  --muted: hsl(0 0% 10%);
  --muted-fg: hsl(0 0% 55%);
  --faint-fg: hsl(0 0% 40%);
  --border: hsl(0 0% 12%);
  --border-strong: hsl(0 0% 24%);
  --grid-line: hsl(0 0% 7%);
  --green: #27c93f;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --pixel: "Silkscreen", "Geist Mono", monospace;
}

[data-theme="light"] {
  --bg: hsl(0 0% 100%);
  --bg-raise: hsl(0 0% 98%);
  --fg: hsl(0 0% 6%);
  --card: hsl(0 0% 100%);
  --card-hover: hsl(0 0% 97%);
  --muted: hsl(0 0% 95%);
  --muted-fg: hsl(0 0% 42%);
  --faint-fg: hsl(0 0% 58%);
  --border: hsl(0 0% 89%);
  --border-strong: hsl(0 0% 72%);
  --grid-line: hsl(0 0% 95%);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

.wrap { max-width: 1280px; margin: 0 auto; padding: 0 28px; }

/* ── Topbar ── */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { display: flex; align-items: center; gap: 34px; height: 56px; }
.logo { display: flex; align-items: baseline; gap: 8px; font-size: 17px; letter-spacing: -.01em; }
.logo .glyph { font-family: var(--mono); font-size: 15px; color: var(--muted-fg); align-self: center; }
.logo b { font-weight: 750; }
.logo .wordmark-alt { font-family: Georgia, "Times New Roman", serif; font-style: italic; font-weight: 400; color: var(--muted-fg); }
.nav { display: flex; gap: 26px; font-family: var(--mono); font-size: 13.5px; color: var(--fg); }
.nav a { display: flex; align-items: center; gap: 7px; }
.nav a .g { color: var(--muted-fg); font-size: 12px; }
.nav a:hover .g { color: var(--fg); }
.nav a.dim { color: var(--muted-fg); }
.nav a.dim:hover, .nav a.active { color: var(--fg); }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 18px; }
.topbar-right .quiet { font-family: var(--mono); font-size: 13px; color: var(--muted-fg); }
.topbar-right .quiet:hover { color: var(--fg); }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--border); background: transparent; color: var(--fg);
  padding: 7px 14px; font-family: var(--mono); font-size: 12.5px; font-weight: 500;
  transition: border-color .15s, background .15s;
  white-space: nowrap;
}
.btn:hover { border-color: var(--border-strong); background: var(--card-hover); }
.btn-primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.btn-primary:hover { background: color-mix(in srgb, var(--fg) 86%, var(--bg)); }
.btn-icon { padding: 7px 9px; color: var(--muted-fg); border: none; background: none; }
.btn-icon:hover { color: var(--fg); }

/* ── Hero ── */
.hero {
  position: relative;
  padding: 88px 0 64px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
}
.hero::after {  /* fade the grid toward the edges */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 70% 90% at 50% 40%, transparent 30%, var(--bg) 100%);
}
.hero > * { position: relative; z-index: 1; }

.status-pill {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 12px; color: var(--muted-fg);
  border: 1px solid var(--border); background: var(--bg-raise);
  padding: 6px 14px; margin-bottom: 36px;
}
.status-pill .dot { width: 7px; height: 7px; background: var(--green); display: inline-block; }
.status-pill b { color: var(--fg); font-weight: 600; }
.status-pill .div { color: var(--border-strong); }

.hero h1 {
  font-family: var(--pixel);
  font-weight: 700;
  font-size: clamp(34px, 6vw, 68px);
  line-height: 1.15;
  letter-spacing: .01em;
  color: var(--fg);
}
.hero h1 .line2 { display: block; color: var(--faint-fg); }
.hero h1 .cursor { animation: blink 1.1s step-start infinite; font-weight: 400; }
@keyframes blink { 50% { opacity: 0; } }

.hero-sub {
  max-width: 560px; margin: 26px auto 0;
  color: var(--muted-fg); font-size: 16.5px; line-height: 1.55;
}

/* ── Search ── */
.search-box {
  max-width: 580px; margin: 34px auto 0;
  display: flex; align-items: center; gap: 12px;
  border: 1px solid var(--border); background: var(--bg-raise);
  padding: 0 16px;
  transition: border-color .15s;
}
.search-box:focus-within { border-color: var(--border-strong); }
.search-box svg { width: 16px; height: 16px; color: var(--faint-fg); flex-shrink: 0; }
.search-box input {
  flex: 1; background: transparent; border: 0; outline: 0;
  color: var(--fg); font-size: 14px; padding: 15px 0; font-family: var(--mono);
}
.search-box input::placeholder { color: var(--faint-fg); }

/* ── Category chips ── */
.chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 20px; }
.chip {
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  border: 1px solid var(--border); background: var(--bg-raise); color: var(--muted-fg);
  padding: 5px 13px; white-space: nowrap;
  transition: color .15s, border-color .15s;
}
.chip:hover { color: var(--fg); border-color: var(--border-strong); }
.chip.active { color: var(--bg); background: var(--fg); border-color: var(--fg); }

/* ── Sections ── */
.section { padding: 52px 0 6px; }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.section-head h2 {
  font-family: var(--mono); font-size: 17px; font-weight: 700; letter-spacing: -.01em;
}
.section-head h2 .dim { color: var(--muted-fg); font-weight: 500; }
.section-head .note { font-family: var(--mono); font-size: 11px; color: var(--faint-fg); margin-left: 12px; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 950px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid { grid-template-columns: 1fr; } }

/* ── Skill card ── */
.card-skill {
  position: relative;
  display: flex; flex-direction: column; gap: 11px;
  background: var(--card); border: 1px solid var(--border);
  padding: 20px 20px 16px; min-height: 158px;
  transition: border-color .15s, background .15s;
}
.card-skill:hover { border-color: var(--border-strong); background: var(--card-hover); }
.card-skill .arrow {
  position: absolute; top: 16px; right: 16px;
  font-family: var(--mono); font-size: 13px; color: var(--faint-fg);
  transition: color .15s, transform .15s;
}
.card-skill:hover .arrow { color: var(--fg); transform: translate(1px, -1px); }
.card-top { display: flex; align-items: center; gap: 11px; padding-right: 24px; }
.card-icon {
  width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center; font-size: 15px;
  background: var(--muted); border: 1px solid var(--border); flex-shrink: 0;
}
.card-title {
  font-family: var(--mono); font-size: 14.5px; font-weight: 700; letter-spacing: -.01em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.card-desc {
  color: var(--muted-fg); font-size: 13.5px; line-height: 1.55; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.card-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 4px; }
.tag-box {
  font-family: var(--mono); font-size: 10px; font-weight: 500; letter-spacing: .07em;
  text-transform: uppercase; color: var(--muted-fg);
  border: 1px solid var(--border); padding: 2.5px 8px;
}
.tag-box.featured { color: var(--green); border-color: color-mix(in srgb, var(--green) 35%, transparent); }
.star-count { font-family: var(--mono); font-size: 12.5px; color: var(--muted-fg); display: inline-flex; align-items: center; gap: 6px; }
.star-count svg { width: 13px; height: 13px; }

/* ── Category tiles ── */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 950px) { .cat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .cat-grid { grid-template-columns: 1fr; } }
.cat-tile {
  position: relative;
  background: var(--card); border: 1px solid var(--border); padding: 26px;
  display: flex; flex-direction: column; gap: 9px;
  transition: border-color .15s, background .15s;
}
.cat-tile:hover { border-color: var(--border-strong); background: var(--card-hover); }
.cat-tile .arrow { position: absolute; top: 18px; right: 18px; font-family: var(--mono); color: var(--faint-fg); }
.cat-tile:hover .arrow { color: var(--fg); }
.cat-tile .cat-icon { font-size: 24px; }
.cat-tile h3 { font-family: var(--mono); font-size: 16px; font-weight: 700; }
.cat-tile .count { font-family: var(--mono); font-size: 11.5px; color: var(--green); }
.cat-tile p { color: var(--muted-fg); font-size: 13.5px; }

/* ── Page headers ── */
.page-head { padding: 64px 0 34px; text-align: center; }
.page-head h1 {
  font-family: var(--pixel); font-weight: 700;
  font-size: clamp(26px, 4.5vw, 44px); letter-spacing: .01em; line-height: 1.2;
}
.page-head .sub { color: var(--muted-fg); margin: 14px auto 0; max-width: 620px; font-size: 15.5px; }
.breadcrumb { font-family: var(--mono); font-size: 12px; color: var(--faint-fg); padding-top: 26px; }
.breadcrumb a:hover { color: var(--fg); }
.breadcrumb .sep { margin: 0 8px; opacity: .55; }

/* ── Leaderboard ── */
.lb-row {
  display: flex; align-items: center; gap: 18px;
  background: var(--card); border: 1px solid var(--border);
  padding: 15px 20px; margin-bottom: 10px;
  transition: border-color .15s, background .15s;
}
.lb-row:hover { border-color: var(--border-strong); background: var(--card-hover); }
.lb-rank { font-family: var(--mono); font-size: 14px; color: var(--faint-fg); width: 42px; flex-shrink: 0; }
.lb-rank.top { color: var(--green); font-weight: 700; }
.lb-icon {
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center; font-size: 16px;
  background: var(--muted); border: 1px solid var(--border); flex-shrink: 0;
}
.lb-main { flex: 1; min-width: 0; }
.lb-title { font-family: var(--mono); font-weight: 700; font-size: 13.5px; }
.lb-tagline { color: var(--muted-fg); font-size: 12.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lb-meta { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
@media (max-width: 700px) { .lb-meta .tag-box { display: none; } }

/* ── Detail page ── */
.detail-head { display: flex; gap: 22px; align-items: flex-start; padding: 30px 0 8px; }
.detail-icon {
  width: 68px; height: 68px; border-radius: 50%;
  display: grid; place-items: center; font-size: 32px;
  background: var(--muted); border: 1px solid var(--border); flex-shrink: 0;
}
.detail-title-block h1 { font-family: var(--mono); font-size: 28px; font-weight: 700; letter-spacing: -.02em; }
.detail-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 10px; }
.detail-tagline { color: var(--muted-fg); font-size: 15.5px; margin-top: 14px; max-width: 740px; }
.detail-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0 6px; }

.detail-layout { display: grid; grid-template-columns: 1fr 320px; gap: 28px; padding: 24px 0 64px; }
@media (max-width: 900px) { .detail-layout { grid-template-columns: 1fr; } }

.panel { background: var(--card); border: 1px solid var(--border); padding: 22px; margin-bottom: 16px; }
.panel h3 {
  font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: .09em;
  text-transform: uppercase; color: var(--muted-fg); margin-bottom: 15px;
}

.hl-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.hl-list li { display: flex; gap: 10px; font-size: 14px; }
.hl-list li::before { content: "+"; color: var(--green); font-family: var(--mono); flex-shrink: 0; }

.steps { display: flex; flex-direction: column; gap: 15px; }
.step { display: flex; gap: 14px; }
.step-num {
  font-family: var(--mono); font-size: 12px; color: var(--muted-fg);
  border: 1px solid var(--border); width: 28px; height: 28px;
  display: grid; place-items: center; flex-shrink: 0;
}
.step b { display: block; font-size: 14px; }
.step p { color: var(--muted-fg); font-size: 13px; }

.tool-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.tool-chip {
  font-family: var(--mono); font-size: 11px; color: var(--muted-fg);
  background: var(--bg-raise); border: 1px solid var(--border); padding: 3px 10px;
}

.code-block {
  background: var(--bg-raise); border: 1px solid var(--border);
  font-family: var(--mono); font-size: 12.5px; color: var(--fg);
  padding: 15px 16px; position: relative; overflow-x: auto;
}
.code-block pre { font-family: inherit; white-space: pre-wrap; word-break: break-word; line-height: 1.7; }
.code-block .comment { color: var(--faint-fg); }
.code-block .dollar { color: var(--green); }
.code-block .copy-btn, .copy-btn {
  position: absolute; top: 10px; right: 10px;
  background: var(--bg); border: 1px solid var(--border); color: var(--muted-fg);
  font-family: var(--mono); font-size: 11px; padding: 4px 10px;
}
.code-block .copy-btn:hover, .copy-btn:hover { color: var(--fg); border-color: var(--border-strong); }

/* rendered SKILL.md body */
.skill-body { font-size: 14px; }
.skill-body h1, .skill-body h2, .skill-body h3 { font-family: var(--mono); margin: 22px 0 10px; letter-spacing: -.01em; }
.skill-body h1 { font-size: 20px; } .skill-body h2 { font-size: 16.5px; } .skill-body h3 { font-size: 14px; }
.skill-body p, .skill-body li { color: var(--muted-fg); margin-bottom: 8px; }
.skill-body li { margin-left: 20px; }
.skill-body strong { color: var(--fg); }
.skill-body code {
  font-family: var(--mono); font-size: 12px; background: var(--muted);
  border: 1px solid var(--border); padding: 1px 5px;
}
.skill-body pre { background: var(--bg-raise); border: 1px solid var(--border); padding: 14px; overflow-x: auto; margin: 12px 0; }
.skill-body pre code { background: none; border: 0; }
.skill-body table { border-collapse: collapse; margin: 12px 0; width: 100%; font-size: 13px; }
.skill-body th, .skill-body td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; color: var(--muted-fg); }
.skill-body th { color: var(--fg); background: var(--muted); font-family: var(--mono); font-size: 12px; }
.skill-body-clamp { max-height: 520px; overflow: hidden; position: relative; }
.skill-body-clamp::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 120px;
  background: linear-gradient(transparent, var(--card));
}
.expand-btn { width: 100%; margin-top: 12px; justify-content: center; }

/* ── FAQ ── */
.faq { max-width: 820px; margin: 0 auto; }
.faq h2 { font-family: var(--mono); font-size: 19px; font-weight: 700; margin-bottom: 26px; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item summary {
  cursor: pointer; padding: 19px 4px; font-family: var(--mono); font-weight: 600; font-size: 14px;
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "⌄"; font-family: var(--mono); color: var(--faint-fg); transition: transform .15s; }
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item .faq-body { padding: 0 4px 19px; color: var(--muted-fg); font-size: 14px; max-width: 700px; }
.faq-item .faq-body a { text-decoration: underline; text-underline-offset: 3px; }

/* ── Footer ── */
.footer { border-top: 1px solid var(--border); margin-top: 72px; padding: 56px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer h4 {
  font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: .09em;
  text-transform: uppercase; color: var(--fg); margin-bottom: 16px;
}
.footer-brand p { color: var(--muted-fg); font-size: 13.5px; max-width: 300px; margin-top: 14px; }
.footer ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer ul a { color: var(--muted-fg); font-size: 13.5px; }
.footer ul a:hover { color: var(--fg); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border);
  font-size: 12px; color: var(--muted-fg); font-family: var(--mono);
}
.footer-bottom .icons { display: flex; gap: 14px; }
.footer-bottom .icons button { background: none; border: none; color: var(--muted-fg); }
.footer-bottom .icons button:hover { color: var(--fg); }

/* ── Utility ── */
.hidden { display: none !important; }
.empty-note { color: var(--faint-fg); font-family: var(--mono); font-size: 13px; padding: 24px 0; text-align: center; }