:root {
  color-scheme: light;
  --bg: #ffffff;
  --bg-radial-1: rgba(0, 114, 245, 0.08);
  --bg-radial-2: rgba(123, 97, 255, 0.06);
  --text: #171717;
  --muted: #4d4d4d;
  --subtle: #666666;
  --line: rgba(0, 0, 0, 0.08);
  --surface: #ffffff;
  --surface-2: #fafafa;
  --surface-glass: rgba(255,255,255,0.86);
  --accent: #0072f5;
  --accent-strong: #005bd3;
  --accent-bg: #ebf5ff;
  --accent-text: #0068d6;
  --danger: #ef4444;
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 9999px;
  --font-sans: 'Geist', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-display: var(--font-sans);
  --font-mono: 'Geist Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --shadow-card: rgba(0,0,0,0.08) 0 0 0 1px, rgba(0,0,0,0.04) 0 2px 2px, rgba(0,0,0,0.04) 0 8px 8px -8px;
  --shadow-soft: 0 20px 60px rgba(0,0,0,.08);
  --header-shadow: 0 1px 0 var(--line);
  --hero-align: center;
  --card-border-style: solid;
  --card-transform: none;
}

html[data-theme="linear"] {
  color-scheme: dark;
  --bg: #08090f;
  --bg-radial-1: rgba(94, 92, 230, 0.26);
  --bg-radial-2: rgba(0, 210, 255, 0.12);
  --text: #f7f8ff;
  --muted: #a6abc4;
  --subtle: #777f9d;
  --line: rgba(255, 255, 255, 0.11);
  --surface: #10121c;
  --surface-2: #171a27;
  --surface-glass: rgba(10, 12, 20, 0.78);
  --accent: #7c5cff;
  --accent-strong: #a997ff;
  --accent-bg: rgba(124, 92, 255, 0.16);
  --accent-text: #c7bbff;
  --radius-xs: 8px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-card: rgba(255,255,255,.10) 0 0 0 1px, rgba(0,0,0,.45) 0 24px 70px -28px;
  --shadow-soft: 0 30px 90px rgba(0,0,0,.45);
}

html[data-theme="notion"] {
  color-scheme: light;
  --bg: #f7f4ed;
  --bg-radial-1: rgba(238, 190, 122, 0.22);
  --bg-radial-2: rgba(110, 96, 79, 0.08);
  --text: #2f2a24;
  --muted: #635b52;
  --subtle: #8a8176;
  --line: rgba(55, 47, 39, 0.13);
  --surface: #fffdf8;
  --surface-2: #f1ede4;
  --surface-glass: rgba(247, 244, 237, 0.84);
  --accent: #9b5c2e;
  --accent-strong: #6f3f1f;
  --accent-bg: #efe3d4;
  --accent-text: #7d461f;
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --font-display: Georgia, 'Times New Roman', serif;
  --shadow-card: rgba(55,47,39,.10) 0 0 0 1px, rgba(55,47,39,.07) 0 10px 30px -18px;
  --hero-align: left;
}

html[data-theme="terminal"] {
  color-scheme: dark;
  --bg: #020403;
  --bg-radial-1: rgba(30, 255, 148, 0.11);
  --bg-radial-2: rgba(0, 255, 221, 0.08);
  --text: #d8ffe8;
  --muted: #9ad8b2;
  --subtle: #64a67e;
  --line: rgba(84, 255, 157, 0.18);
  --surface: #07110c;
  --surface-2: #0c1b13;
  --surface-glass: rgba(2, 8, 5, 0.84);
  --accent: #55ff99;
  --accent-strong: #baffd3;
  --accent-bg: rgba(85,255,153,.12);
  --accent-text: #96ffbf;
  --radius-xs: 0;
  --radius-sm: 0;
  --radius-md: 0;
  --radius-lg: 0;
  --font-display: var(--font-mono);
  --font-sans: var(--font-mono);
  --shadow-card: rgba(85,255,153,.22) 0 0 0 1px, rgba(85,255,153,.08) 0 0 30px;
  --card-border-style: dashed;
}

html[data-theme="magazine"] {
  color-scheme: light;
  --bg: #fff7ee;
  --bg-radial-1: rgba(255, 76, 41, 0.18);
  --bg-radial-2: rgba(255, 199, 0, 0.12);
  --text: #17120f;
  --muted: #55463d;
  --subtle: #80695d;
  --line: rgba(23, 18, 15, 0.14);
  --surface: #fffaf2;
  --surface-2: #f4e7d8;
  --surface-glass: rgba(255, 247, 238, 0.84);
  --accent: #e23d21;
  --accent-strong: #9d2612;
  --accent-bg: #ffe0d5;
  --accent-text: #b72d17;
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 28px;
  --font-display: Georgia, 'Times New Roman', serif;
  --shadow-card: rgba(23,18,15,.15) 0 0 0 1px, rgba(226,61,33,.10) 10px 10px 0;
  --hero-align: left;
  --card-transform: rotate(-0.15deg);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(circle at 18% 0%, var(--bg-radial-1), transparent 34rem),
    radial-gradient(circle at 90% 12%, var(--bg-radial-2), transparent 30rem),
    var(--bg);
  font-feature-settings: "liga" 1;
  min-height: 100vh;
  transition: background .25s ease, color .25s ease;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(127,127,127,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(127,127,127,.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 70%);
}
html[data-theme="terminal"] body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(to bottom, rgba(255,255,255,.04), rgba(255,255,255,.04) 1px, transparent 1px, transparent 4px);
  mix-blend-mode: screen;
  opacity: .18;
}

a { color: inherit; text-decoration: none; }
code, time { font-family: var(--font-mono); }
button, input, select { font: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 48px);
  background: var(--surface-glass);
  backdrop-filter: blur(18px);
  box-shadow: var(--header-shadow);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 650; letter-spacing: -0.32px; }
.brand-mark {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 0 0 1px var(--line), 0 10px 22px color-mix(in srgb, var(--accent) 18%, transparent);
}
.brand-mark img { display: block; width: 100%; height: 100%; }
.header-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; justify-content: flex-end; }
.nav { display: flex; gap: 18px; color: var(--muted); font-size: 14px; font-weight: 560; }
.nav a:hover { color: var(--text); }
.theme-picker { display: inline-flex; align-items: center; gap: 8px; color: var(--subtle); font-size: 12px; font-weight: 650; text-transform: uppercase; letter-spacing: .06em; font-family: var(--font-mono); white-space: nowrap; }
.theme-picker span { white-space: nowrap; }
.theme-picker select { min-width: 148px; height: 36px; }

main { width: min(1120px, calc(100% - 32px)); margin: 0 auto; position: relative; }
.hero { text-align: var(--hero-align); padding: clamp(92px, 13vw, 148px) 0 64px; }
.hero-badge {
  display: inline-flex; align-items: center; border-radius: var(--radius-pill); padding: 7px 13px;
  color: var(--accent-text); background: var(--accent-bg); font-size: 12px; font-weight: 650;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 20%, transparent);
}
.hero h1 {
  max-width: 890px; margin: 18px auto 0; font-family: var(--font-display); font-size: clamp(42px, 7vw, 82px); line-height: .96;
  letter-spacing: clamp(-3.4px, -0.06em, -1.8px); font-weight: 680;
}
html[data-theme="notion"] .hero h1,
html[data-theme="magazine"] .hero h1 { margin-left: 0; }
.hero-copy { max-width: 780px; margin: 22px auto 0; color: var(--muted); font-size: 19px; line-height: 1.75; }
html[data-theme="notion"] .hero-copy,
html[data-theme="magazine"] .hero-copy { margin-left: 0; }
.hero-copy code { background: var(--surface-2); padding: 2px 6px; border-radius: var(--radius-xs); box-shadow: 0 0 0 1px var(--line); }
.hero-actions, .theme-showcase { display: flex; justify-content: center; gap: 12px; margin-top: 26px; flex-wrap: wrap; }
html[data-theme="notion"] .hero-actions,
html[data-theme="notion"] .theme-showcase,
html[data-theme="magazine"] .hero-actions,
html[data-theme="magazine"] .theme-showcase { justify-content: flex-start; }
.button, .theme-chip {
  display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 0 16px;
  border-radius: var(--radius-sm); font-size: 14px; font-weight: 650; border: 0; cursor: pointer;
}
.primary { background: var(--text); color: var(--bg); box-shadow: var(--shadow-soft); }
.secondary, .theme-chip { background: var(--surface); color: var(--text); box-shadow: 0 0 0 1px var(--line); }
.theme-chip { min-height: 34px; padding: 0 12px; color: var(--muted); }
.theme-chip[aria-pressed="true"] { color: var(--accent-text); background: var(--accent-bg); box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 38%, transparent); }

.toolbar {
  display: grid; grid-template-columns: 1fr 220px; gap: 12px; padding: 16px; border-radius: var(--radius-md); box-shadow: var(--shadow-card); margin-bottom: 42px; background: var(--surface-glass); backdrop-filter: blur(16px);
}
.search-box { display: grid; gap: 8px; color: var(--subtle); font-size: 12px; font-weight: 650; }
.search-box span { text-transform: uppercase; letter-spacing: .06em; font-family: var(--font-mono); }
input, select {
  width: 100%; height: 42px; border: 0; outline: 0; border-radius: var(--radius-sm); padding: 0 12px;
  color: var(--text); background: var(--surface); box-shadow: 0 0 0 1px var(--line);
}
input::placeholder { color: var(--subtle); }
input:focus, select:focus, .button:focus-visible, a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.section-heading { margin: 0 0 22px; }
.eyebrow { margin: 0 0 6px; color: var(--subtle); font-family: var(--font-mono); font-size: 12px; font-weight: 650; text-transform: uppercase; }
h2 { margin: 0; font-family: var(--font-display); font-size: clamp(30px, 4vw, 44px); line-height: 1.1; letter-spacing: -1.6px; }

.feed-list { display: grid; gap: 16px; }
.card {
  display: grid; gap: 14px; padding: 22px; border-radius: var(--radius-md); background: var(--surface);
  box-shadow: var(--shadow-card); transform: var(--card-transform); border: 1px var(--card-border-style) transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-card), var(--shadow-soft); }
html[data-theme="magazine"] .card:hover { transform: rotate(0deg) translateY(-2px); }
.card-top { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; }
.card h3 { margin: 0; font-family: var(--font-display); font-size: 24px; line-height: 1.25; letter-spacing: -0.96px; }
.meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--subtle); font-size: 13px; }
.pill { display: inline-flex; align-items: center; border-radius: var(--radius-pill); padding: 3px 9px; background: var(--surface-2); box-shadow: 0 0 0 1px var(--line); font-size: 12px; color: var(--muted); white-space: nowrap; }
.summary { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.65; }
.summary-block { display: grid; gap: 10px; color: var(--muted); font-size: 16px; line-height: 1.7; }
.summary-block p, .summary-lead { margin: 0; }
.summary-list { display: grid; gap: 9px; margin: 0; padding: 0; list-style: none; }
.summary-list li {
  position: relative; padding: 11px 12px 11px 34px; border-radius: var(--radius-sm); background: var(--surface-2); box-shadow: 0 0 0 1px var(--line);
}
.summary-list li::before {
  content: ""; position: absolute; left: 14px; top: 20px; width: 6px; height: 6px; border-radius: var(--radius-pill); background: var(--accent);
}
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { color: var(--accent-text); background: var(--accent-bg); border-radius: var(--radius-pill); padding: 4px 9px; font-size: 12px; font-weight: 650; }
.card a.source-link { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

.archive-section { padding: 72px 0; }
.archive-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.archive-card {
  text-align: left; color: var(--text); padding: 18px; border: 0; border-radius: var(--radius-sm); box-shadow: var(--shadow-card); background: var(--surface); cursor: pointer;
}
.archive-card:hover { color: var(--accent-text); background: var(--accent-bg); }
.archive-card strong { display: block; font-family: var(--font-display); font-size: 22px; letter-spacing: -0.8px; }
.archive-card span { color: var(--muted); font-size: 14px; }
.empty-state { padding: 28px; border-radius: var(--radius-md); text-align: center; color: var(--muted); background: var(--surface-2); box-shadow: 0 0 0 1px var(--line); }
.footer { display: flex; justify-content: space-between; gap: 16px; padding: 28px clamp(18px, 4vw, 48px); color: var(--subtle); font-size: 13px; box-shadow: 0 -1px 0 var(--line); }

@media (max-width: 720px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .header-actions { width: 100%; align-items: flex-start; justify-content: space-between; }
  .nav { flex-wrap: wrap; }
  .theme-picker { width: 100%; align-items: stretch; display: grid; }
  .toolbar { grid-template-columns: 1fr; }
  .archive-list { grid-template-columns: 1fr; }
  .footer { flex-direction: column; }
  .card-top { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}

/* ── Skills Section ── */
.skills-section { padding: 0 0 64px; }
.skill-stats { display: flex; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.skill-stat {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: var(--radius-pill);
  background: var(--surface); box-shadow: 0 0 0 1px var(--line);
  font-size: 13px; font-weight: 650; color: var(--muted);
}
.skill-stat strong { color: var(--text); }
.skill-filters { display: flex; gap: 8px; margin-bottom: 24px; flex-wrap: wrap; }
.skill-filter-chip {
  padding: 5px 14px; border-radius: var(--radius-pill); border: 0;
  font-size: 13px; font-weight: 600; cursor: pointer;
  background: var(--surface-2); color: var(--muted);
  box-shadow: 0 0 0 1px var(--line);
  transition: all .15s ease;
}
.skill-filter-chip:hover, .skill-filter-chip.active {
  background: var(--accent-bg); color: var(--accent-text);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 38%, transparent);
}

.skills-list { display: grid; gap: 12px; }
.skill-card {
  border-radius: var(--radius-md); background: var(--surface);
  box-shadow: var(--shadow-card); overflow: hidden;
  transition: transform .15s ease, box-shadow .15s ease;
}
.skill-card:hover { transform: translateY(-1px); box-shadow: var(--shadow-card), var(--shadow-soft); }
.skill-card-header {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 22px; cursor: pointer; user-select: none;
}
.skill-card-icon { font-size: 28px; flex-shrink: 0; width: 44px; text-align: center; }
.skill-card-info { flex: 1; min-width: 0; }
.skill-card-name {
  font-family: var(--font-display); font-size: 18px; font-weight: 650;
  letter-spacing: -0.4px; margin: 0 0 4px;
}
.skill-card-meta {
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
  font-size: 12px; color: var(--subtle);
}
.skill-badge {
  display: inline-flex; align-items: center; border-radius: var(--radius-pill);
  padding: 2px 8px; font-size: 11px; font-weight: 650;
}
.skill-badge.active { background: #d1fae5; color: #065f46; }
.skill-badge.pending { background: #fef3c7; color: #92400e; }
.skill-badge.builtin { background: #dbeafe; color: #1e40af; }
.skill-cat {
  display: inline-flex; align-items: center; border-radius: var(--radius-pill);
  padding: 2px 8px; font-size: 11px; background: var(--surface-2); color: var(--muted);
}
.skill-card-arrow {
  font-size: 18px; color: var(--subtle); transition: transform .2s ease;
}
.skill-card.open .skill-card-arrow { transform: rotate(180deg); }

.skill-card-body {
  display: none; padding: 0 22px 22px;
  border-top: 1px solid var(--line);
  animation: skillFadeIn .2s ease;
}
@keyframes skillFadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }
.skill-card.open .skill-card-body { display: block; }

.skill-detail { display: grid; gap: 14px; padding-top: 16px; }
.skill-detail p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
.skill-detail-label {
  font-family: var(--font-mono); font-size: 11px; font-weight: 650; text-transform: uppercase;
  letter-spacing: .06em; color: var(--subtle); margin-bottom: 2px;
}
.skill-triggers { display: flex; flex-wrap: wrap; gap: 6px; }
.skill-trigger-tag {
  display: inline-flex; align-items: center; border-radius: var(--radius-pill);
  padding: 3px 10px; font-size: 12px; font-family: var(--font-mono);
  background: var(--accent-bg); color: var(--accent-text);
}
.skill-repo-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--accent); font-size: 13px; font-weight: 600; text-decoration: none;
}
.skill-repo-link:hover { text-decoration: underline; }
.skill-tip {
  padding: 12px 16px; border-radius: var(--radius-sm);
  background: var(--surface-2); box-shadow: 0 0 0 1px var(--line);
  font-size: 13px !important; color: var(--muted) !important;
}

@media (max-width: 720px) {
  .skill-card-header { padding: 14px 16px; }
  .skill-card-body { padding: 0 16px 16px; }
  .skill-card-name { font-size: 16px; }
}