/* Field Notes theme — dark, docs-style, inspired by aihero.dev/skills */

:root {
  --bg: #080808;
  --bg-raised: #101010;
  --bg-hover: rgba(255, 255, 255, 0.03);
  --text: #f4f3f1;
  --text-muted: rgba(244, 243, 241, 0.62);
  --text-faint: rgba(244, 243, 241, 0.32);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --accent: #f5c451;
  --accent-strong: #ffd670;
  --accent-text: #191510;
  --font-sans: "DM Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI",
    Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco,
    Consolas, "Liberation Mono", monospace;
  --radius: 10px;
  --radius-sm: 6px;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color-scheme: dark;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

a {
  color: inherit;
  text-decoration: none;
}

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

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

/* ---------- header ---------- */

.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(8, 8, 8, 0.88);
  backdrop-filter: blur(10px);
  z-index: 50;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.brand .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  color: var(--text-muted);
  font-size: 14px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background 0.15s ease;
}

.site-nav a:hover {
  color: var(--text);
  background: var(--bg-hover);
}

.site-nav a.rss {
  color: var(--accent-text);
  background: var(--accent);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 12px;
}

.site-nav a.rss:hover {
  background: var(--accent-strong);
  color: var(--accent-text);
}

/* ---------- hero ---------- */

.hero {
  padding: 64px 0 40px;
  border-bottom: 1px solid var(--border);
}

.hero h1 {
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.08;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}

.hero p {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 0 26px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hero-stats strong {
  color: var(--text);
  font-weight: 600;
}

/* ---------- section list (home + archive) ---------- */

.section-block {
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}

.section-block:last-child {
  border-bottom: none;
}

.section-head {
  display: flex;
  gap: 16px;
  align-items: baseline;
  margin-bottom: 24px;
}

.section-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
  font-weight: 500;
  padding-top: 4px;
}

.section-head h2 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
}

.row-list {
  display: flex;
  flex-direction: column;
}

.row-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 12px;
  margin: 0 -12px;
  border-top: 1px solid var(--border);
  transition: background 0.15s ease;
}

.row-list a.row-item {
  color: inherit;
}

.row-item:first-child {
  border-top: none;
}

.row-item:hover {
  background: var(--bg-hover);
}

.row-main {
  min-width: 0;
}

.row-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
  margin-bottom: 6px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.row-title {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 6px;
  letter-spacing: -0.005em;
}

.row-desc {
  color: var(--text-muted);
  font-size: 14.5px;
  line-height: 1.55;
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.row-arrow {
  flex: none;
  color: var(--text-faint);
  font-size: 18px;
  padding-top: 2px;
  transition: color 0.15s ease, transform 0.15s ease;
}

.row-item:hover .row-arrow {
  color: var(--accent);
  transform: translateX(2px);
}

.section-empty {
  color: var(--text-faint);
  font-size: 14px;
  padding: 12px 0;
}

/* ---------- tag / category pills ---------- */

.pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--text);
  transition: border-color 0.15s ease, color 0.15s ease;
}

.pill:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.pill .count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
}

/* ---------- post single ---------- */

.post-header {
  padding: 56px 0 32px;
  border-bottom: 1px solid var(--border);
}

.post-header .crumb {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
  margin-bottom: 18px;
}

.post-header .crumb a {
  color: var(--text-faint);
}

.post-header .crumb a:hover {
  color: var(--accent);
}

.post-header h1 {
  font-size: clamp(30px, 4.5vw, 44px);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}

.post-header .desc {
  color: var(--text-muted);
  font-size: 17px;
  max-width: 680px;
  margin: 0 0 22px;
}

.post-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-faint);
}

.post-meta-row a {
  color: var(--text-faint);
}

.post-meta-row a:hover {
  color: var(--accent);
}

.post-body-wrap {
  padding: 44px 0;
  max-width: 760px;
}

.post-content {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text);
}

.post-content h2,
.post-content h3,
.post-content h4 {
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 2em 0 0.7em;
  line-height: 1.3;
}

.post-content h2 {
  font-size: 26px;
}

.post-content h3 {
  font-size: 21px;
}

.post-content h4 {
  font-size: 17px;
}

.post-content p {
  margin: 0 0 1.2em;
}

.post-content a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(245, 196, 81, 0.35);
  text-underline-offset: 3px;
}

.post-content a:hover {
  text-decoration-color: var(--accent);
}

.post-content ul,
.post-content ol {
  margin: 0 0 1.2em;
  padding-left: 1.4em;
}

.post-content li {
  margin-bottom: 0.4em;
}

.post-content blockquote {
  margin: 1.6em 0;
  padding: 4px 20px;
  border-left: 3px solid var(--accent);
  color: var(--text-muted);
}

.post-content blockquote p:last-child {
  margin-bottom: 0;
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.15em 0.4em;
}

.post-content pre {
  margin: 1.6em 0;
  padding: 18px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow-x: auto;
  font-size: 14.5px;
  line-height: 1.6;
}

.post-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 1em;
}

.post-content img {
  display: block;
  margin: 1.8em 0;
  border: 1px solid var(--border);
}

.post-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.4em 0;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6em 0;
  font-size: 15px;
}

.post-content th,
.post-content td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: left;
}

.post-content th {
  color: var(--text-muted);
  font-weight: 600;
  background: var(--bg-raised);
}

/* ---------- prev/next + comments ---------- */

.post-adjacent {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 28px 0;
  border-top: 1px solid var(--border);
  margin-bottom: 40px;
}

.post-adjacent a {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  min-width: 0;
}

.post-adjacent a:hover {
  border-color: var(--border-strong);
  background: var(--bg-hover);
}

.post-adjacent .label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.post-adjacent .title {
  font-size: 14.5px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.post-adjacent .next {
  text-align: right;
}

.post-comments {
  border-top: 1px solid var(--border);
  padding-top: 36px;
}

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 28px 0;
  font-size: 13px;
  color: var(--text-faint);
}

.site-footer a {
  color: var(--text-faint);
}

.site-footer a:hover {
  color: var(--accent);
}

.footer-links {
  display: flex;
  gap: 18px;
}

/* ---------- 404 ---------- */

.not-found {
  padding: 100px 0;
  text-align: center;
}

.not-found h1 {
  font-size: 40px;
  margin-bottom: 14px;
}

.not-found p {
  color: var(--text-muted);
  font-size: 16px;
}

.not-found a {
  color: var(--accent);
  text-decoration: underline;
}

/* ---------- responsive ---------- */

@media (max-width: 680px) {
  .site-header .wrap {
    height: auto;
    flex-wrap: wrap;
    padding-top: 14px;
    padding-bottom: 14px;
  }

  .site-nav {
    width: 100%;
    justify-content: flex-start;
    gap: 2px;
  }

  .hero {
    padding: 44px 0 30px;
  }

  .post-adjacent {
    grid-template-columns: 1fr;
  }

  .post-adjacent .next {
    text-align: left;
  }

  .row-item {
    flex-direction: column;
    gap: 8px;
  }

  .row-arrow {
    display: none;
  }
}