/* ── FONTS ── */
@font-face {
  font-family: 'Bricolage Grotesque';
  font-style: normal;
  font-weight: 300 600;
  font-display: swap;
  src: url('/fonts/bricolage-grotesque-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Bricolage Grotesque';
  font-style: normal;
  font-weight: 300 600;
  font-display: swap;
  src: url('/fonts/bricolage-grotesque-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'DM Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/dm-mono-400-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'DM Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/dm-mono-400-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'DM Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/dm-mono-500-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'DM Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/dm-mono-500-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Instrument Serif';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/instrument-serif-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Instrument Serif';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/instrument-serif-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Instrument Serif';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/instrument-serif-italic-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Instrument Serif';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/instrument-serif-italic-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ── TOKENS ── */
:root,
[data-theme="dark"] {
  --font-sans: 'Bricolage Grotesque', sans-serif;
  --font-serif: 'Instrument Serif', serif;
  --font-mono: 'DM Mono', monospace;
  --bg: #0e0c0a;
  --surface: #141210;
  --border: #242430;
  --accent: #e8613a;
  --accent-dim: rgba(232, 97, 58, 0.12);
  --accent2: #7a9ab5;
  --text: #e8e6e0;
  --text-dim: #8a8880;
  --text-mid: #b5b2aa;
  --code-bg: #141210;
  --good: #4caf82;
  --bad: #e05555;
  --callout-error: #b05c5c;
  --grain-opacity: 0.4;
}

[data-theme="light"] {
  --bg: #f7f5f0;
  --surface: #f0ede6;
  --border: #d5d0c6;
  --accent: #c9501f;
  --accent-dim: rgba(201, 80, 31, 0.10);
  --accent2: #3a65d4;
  --text: #1c1a16;
  --text-dim: #7a756d;
  --text-mid: #4a4640;
  --code-bg: #f0ede6;
  --good: #2d8a5e;
  --bad: #c03030;
  --callout-error: #a04848;
  --grain-opacity: 0.15;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── GRAIN OVERLAY ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: var(--grain-opacity);
}

/* ── MONO LABEL: shared base for uppercase monospace labels ── */
.post-category,
.eyebrow,
.section-label,
.callout-title,
.read-next-label,
.read-next-category,
.share-label,
.giscus-label,
.toc-label,
.toc-float-heading,
.not-found-code,
.post-nav-direction,
.tab-btn,
.code-label,
.status-badge,
.hub-section-title,
.note-date,
.note-tag,
.footer-copy {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* ── THEME TOGGLE ── */
.theme-toggle {
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  transition: color 0.15s ease;
  line-height: 0;
}
.theme-toggle:hover { color: var(--text); }

[data-theme="dark"]  .toggle-sun  { display: block; }
[data-theme="dark"]  .toggle-moon { display: none;  }
[data-theme="light"] .toggle-sun  { display: none;  }
[data-theme="light"] .toggle-moon { display: block; }

/* ── LAYOUT ── */
.container {
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
  padding: 0 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

#main-content { flex: 1; }

/* ── SITE HEADER ── */
.site-header {
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}

.site-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header a {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s ease;
}

.site-header a.site-name,
.site-header h1.site-name a {
  color: var(--text);
  font-weight: 500;
}
h1.site-name {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.site-nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-back:hover { color: var(--accent); }
.nav-link:hover { color: var(--text); }

.site-header a.nav-active {
  color: var(--text);
  border-bottom: 1px solid var(--text);
  padding-bottom: 2px;
}

.site-desc {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  line-height: 1.6;
  margin-top: 10px;
}

/* ── POST LIST ── */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  animation: fadeUp 0.9s 0.08s ease both;
}

/* ── OFFLINE PAGE ── */
.offline-page { padding: 80px 0; }
.offline-list { list-style: none; margin-top: 32px; }
.offline-list li { padding: 14px 0; border-bottom: 1px solid var(--border); }
.offline-list a { color: var(--text); text-decoration: none; }
.offline-list a:hover { color: var(--accent); }
.offline-empty { color: var(--text-dim); font-family: var(--font-mono); font-size: 13px; margin-top: 32px; }

.pagination-nav {
  display: flex;
  justify-content: space-between;
  padding: 32px 0 80px;
}

.pagination-btn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s ease;
}
.pagination-btn:hover { color: var(--accent); }

/* ── TAB BAR ── */
.tab-bar {
  display: flex;
  border-bottom: 1px solid var(--border);
  gap: 0;
  margin-top: 48px;
}

.tab-btn {
  font-size: 11px;
  letter-spacing: 0.1em;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 14px 20px 12px;
  margin-bottom: -1px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.is-active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.post-card {
  display: block;
  padding: 28px 0;
  margin-left: 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: border-color 0.15s ease;
}
.post-card:hover .post-title { color: var(--accent); }
.post-card:first-child { border-top: none; }
.post-card.is-hidden { display: none; }

.post-category {
  letter-spacing: 0.18em;
  color: var(--accent);
  display: block;
  margin-bottom: 10px;
}

.post-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 10px;
  transition: color 0.15s ease;
}

.post-subtitle {
  font-size: 0.92rem;
  color: var(--text-dim);
  font-weight: 300;
  line-height: 1.65;
  margin-bottom: 14px;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

/* ── ARTICLE HEADER ── */
article > header, .article-header {
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 64px;
  animation: fadeUp 0.8s ease both;
}

.eyebrow {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::after {
  content: '';
  display: inline-block;
  height: 1px;
  width: 40px;
  background: var(--accent);
  opacity: 0.5;
}

h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  line-height: 1.18;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

h1 em,
.post-card .post-title em {
  font-style: italic;
  color: var(--accent);
}

.subtitle {
  font-size: 1.05rem;
  color: var(--text-mid);
  font-weight: 300;
  max-width: 560px;
  line-height: 1.7;
}

.meta {
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}
.meta-dot { color: var(--border); }

/* ── ARTICLE BODY ── */
article {
  animation: fadeUp 0.9s 0.1s ease both;
  padding-bottom: 80px;
}

article p {
  color: var(--text-mid);
  margin-bottom: 1.6em;
  font-weight: 300;
}

article p strong {
  color: var(--text);
  font-weight: 500;
}

article a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 55%, transparent);
  text-underline-offset: 0.14em;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}
article a:visited {
  color: color-mix(in srgb, var(--accent) 72%, var(--accent2));
}
article a:hover,
article a:focus-visible {
  color: var(--text);
  text-decoration-color: var(--accent);
}

article ul,
article ol {
  margin: 0 0 1.6em 1.4em;
  color: var(--text-mid);
  font-weight: 300;
  line-height: 1.9;
}

article ul li,
article ol li {
  margin-bottom: 0.3em;
}

article ul li strong,
article ol li strong {
  color: var(--text);
  font-weight: 500;
}

article code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--text);
}

/* ── SECTION HEADINGS ── */
article h2 {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 6px;
  margin-top: 64px;
  line-height: 1.3;
}

.section-label {
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 14px;
  display: block;
}

/* ── CALLOUT BOXES ── */
.callout {
  border-top: 2px solid var(--accent2);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  padding: 18px 22px;
  margin: 32px 0;
}
.callout p {
  margin: 0;
  color: var(--text);
  font-size: 0.95rem;
}
.callout > div > p:last-child { margin-bottom: 0; }
.callout-title {
  color: var(--accent2);
  margin-bottom: 8px;
  display: block;
}
.callout.error   { border-top-color: #b05c5c; }
.callout.error   .callout-title { color: #b05c5c; }
.callout.warning { border-top-color: #c8922a; }
.callout.warning .callout-title { color: #c8922a; }
.callout.info    { border-top-color: var(--accent2); }
.callout.info    .callout-title { color: var(--accent2); }
.callout.success { border-top-color: #4caf82; }
.callout.success .callout-title { color: #4caf82; }

/* ── DEFINITION BOXES ── */
.definition {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px 22px;
  margin: 28px 0;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px 16px;
  align-items: start;
}
.definition-icon {
  width: 36px;
  height: 28px;
  background: var(--accent-dim);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-top: 2px;
  flex-shrink: 0;
  white-space: nowrap;
}
.definition-term {
  font-weight: 500;
  color: var(--text);
  font-size: 0.95rem;
  margin-bottom: 4px;
  font-family: var(--font-sans);
}
.definition-desc {
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.6;
  margin: 0;
  font-weight: 300;
}
.definition-desc p { margin: 0; font-size: inherit; color: inherit; }
.definition-desc p:last-child { margin-bottom: 0; }

/* ── CODE BLOCKS ── */
.code-block {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin: 28px 0;
  font-family: var(--font-mono);
  font-size: 13px;
}
.code-header {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.code-label {
  letter-spacing: 0.12em;
}
.code-label.bad { color: var(--bad); }
.code-label.good { color: var(--good); }
.code-label.neutral { color: var(--text-dim); }
.code-dots { display: flex; gap: 6px; }
.code-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}
.code-body-wrapper { overflow-x: auto; }
.code-complexity {
  padding: 8px 16px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  letter-spacing: 0.06em;
  font-family: var(--font-mono);
}
.code-complexity.bad { color: var(--bad); background: rgba(224, 85, 85, 0.06); }
.code-complexity.good { color: var(--good); background: rgba(76, 175, 130, 0.06); }

/* ── CHROMA SYNTAX HIGHLIGHT OVERRIDES ── */
.code-block .highlight { margin: 0; }
.code-block .highlight pre {
  background: transparent !important;
  padding: 18px 32px !important;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  overflow-x: auto;
}
.code-block .highlight code {
  background: transparent;
  border: none;
  padding: 0;
  font-size: 13px;
}

/* ── CHROMA TOKEN COLORS: DARK (nord) ── */
[data-theme="dark"] .chroma .err { color:#bf616a }
[data-theme="dark"] .chroma .k  { color:#81a1c1;font-weight:bold }
[data-theme="dark"] .chroma .kc { color:#81a1c1;font-weight:bold }
[data-theme="dark"] .chroma .kd { color:#81a1c1;font-weight:bold }
[data-theme="dark"] .chroma .kn { color:#81a1c1;font-weight:bold }
[data-theme="dark"] .chroma .kp { color:#81a1c1 }
[data-theme="dark"] .chroma .kr { color:#81a1c1;font-weight:bold }
[data-theme="dark"] .chroma .kt { color:#81a1c1 }
[data-theme="dark"] .chroma .na { color:#8fbcbb }
[data-theme="dark"] .chroma .nc { color:#8fbcbb }
[data-theme="dark"] .chroma .no { color:#8fbcbb }
[data-theme="dark"] .chroma .nd { color:#d08770 }
[data-theme="dark"] .chroma .ni { color:#d08770 }
[data-theme="dark"] .chroma .ne { color:#bf616a }
[data-theme="dark"] .chroma .nl { color:#8fbcbb }
[data-theme="dark"] .chroma .nn { color:#8fbcbb }
[data-theme="dark"] .chroma .py { color:#8fbcbb }
[data-theme="dark"] .chroma .nt { color:#81a1c1 }
[data-theme="dark"] .chroma .nb { color:#81a1c1 }
[data-theme="dark"] .chroma .bp { color:#81a1c1 }
[data-theme="dark"] .chroma .nf { color:#88c0d0 }
[data-theme="dark"] .chroma .fm { color:#88c0d0 }
[data-theme="dark"] .chroma .s  { color:#a3be8c }
[data-theme="dark"] .chroma .sa { color:#a3be8c }
[data-theme="dark"] .chroma .sb { color:#a3be8c }
[data-theme="dark"] .chroma .sc { color:#a3be8c }
[data-theme="dark"] .chroma .dl { color:#a3be8c }
[data-theme="dark"] .chroma .sd { color:#616e87 }
[data-theme="dark"] .chroma .s2 { color:#a3be8c }
[data-theme="dark"] .chroma .se { color:#ebcb8b }
[data-theme="dark"] .chroma .sh { color:#a3be8c }
[data-theme="dark"] .chroma .si { color:#a3be8c }
[data-theme="dark"] .chroma .sx { color:#a3be8c }
[data-theme="dark"] .chroma .sr { color:#ebcb8b }
[data-theme="dark"] .chroma .s1 { color:#a3be8c }
[data-theme="dark"] .chroma .ss { color:#a3be8c }
[data-theme="dark"] .chroma .m  { color:#b48ead }
[data-theme="dark"] .chroma .mb { color:#b48ead }
[data-theme="dark"] .chroma .mf { color:#b48ead }
[data-theme="dark"] .chroma .mh { color:#b48ead }
[data-theme="dark"] .chroma .mi { color:#b48ead }
[data-theme="dark"] .chroma .il { color:#b48ead }
[data-theme="dark"] .chroma .mo { color:#b48ead }
[data-theme="dark"] .chroma .o  { color:#81a1c1 }
[data-theme="dark"] .chroma .ow { color:#81a1c1;font-weight:bold }
[data-theme="dark"] .chroma .p  { color:#eceff4 }
[data-theme="dark"] .chroma .c  { color:#616e87;font-style:italic }
[data-theme="dark"] .chroma .ch { color:#616e87;font-style:italic }
[data-theme="dark"] .chroma .cm { color:#616e87;font-style:italic }
[data-theme="dark"] .chroma .c1 { color:#616e87;font-style:italic }
[data-theme="dark"] .chroma .cs { color:#616e87;font-style:italic }
[data-theme="dark"] .chroma .cp { color:#5e81ac;font-style:italic }
[data-theme="dark"] .chroma .cpf{ color:#5e81ac;font-style:italic }
[data-theme="dark"] .chroma .gd { color:#bf616a }
[data-theme="dark"] .chroma .ge { font-style:italic }
[data-theme="dark"] .chroma .gr { color:#bf616a }
[data-theme="dark"] .chroma .gh { color:#88c0d0;font-weight:bold }
[data-theme="dark"] .chroma .gi { color:#a3be8c }
[data-theme="dark"] .chroma .gp { color:#4c566a;font-weight:bold }
[data-theme="dark"] .chroma .gs { font-weight:bold }
[data-theme="dark"] .chroma .gu { color:#88c0d0;font-weight:bold }
[data-theme="dark"] .chroma .gt { color:#bf616a }

/* ── CHROMA TOKEN COLORS: LIGHT (github) ── */
[data-theme="light"] .chroma .err { color:#f6f8fa;background-color:#82071e }
[data-theme="light"] .chroma .k  { color:#cf222e }
[data-theme="light"] .chroma .kc { color:#cf222e }
[data-theme="light"] .chroma .kd { color:#cf222e }
[data-theme="light"] .chroma .kn { color:#cf222e }
[data-theme="light"] .chroma .kp { color:#cf222e }
[data-theme="light"] .chroma .kr { color:#cf222e }
[data-theme="light"] .chroma .kt { color:#cf222e }
[data-theme="light"] .chroma .na { color:#1f2328 }
[data-theme="light"] .chroma .nc { color:#1f2328 }
[data-theme="light"] .chroma .no { color:#0550ae }
[data-theme="light"] .chroma .nd { color:#0550ae }
[data-theme="light"] .chroma .ni { color:#6639ba }
[data-theme="light"] .chroma .nl { color:#900;font-weight:bold }
[data-theme="light"] .chroma .nn { color:#24292e }
[data-theme="light"] .chroma .nx { color:#1f2328 }
[data-theme="light"] .chroma .nt { color:#0550ae }
[data-theme="light"] .chroma .nb { color:#6639ba }
[data-theme="light"] .chroma .bp { color:#6a737d }
[data-theme="light"] .chroma .nv { color:#953800 }
[data-theme="light"] .chroma .vc { color:#953800 }
[data-theme="light"] .chroma .vg { color:#953800 }
[data-theme="light"] .chroma .vi { color:#953800 }
[data-theme="light"] .chroma .vm { color:#953800 }
[data-theme="light"] .chroma .nf { color:#6639ba }
[data-theme="light"] .chroma .fm { color:#6639ba }
[data-theme="light"] .chroma .s  { color:#0a3069 }
[data-theme="light"] .chroma .sa { color:#0a3069 }
[data-theme="light"] .chroma .sb { color:#0a3069 }
[data-theme="light"] .chroma .sc { color:#0a3069 }
[data-theme="light"] .chroma .dl { color:#0a3069 }
[data-theme="light"] .chroma .sd { color:#0a3069 }
[data-theme="light"] .chroma .s2 { color:#0a3069 }
[data-theme="light"] .chroma .se { color:#0a3069 }
[data-theme="light"] .chroma .sh { color:#0a3069 }
[data-theme="light"] .chroma .si { color:#0a3069 }
[data-theme="light"] .chroma .sx { color:#0a3069 }
[data-theme="light"] .chroma .sr { color:#0a3069 }
[data-theme="light"] .chroma .s1 { color:#0a3069 }
[data-theme="light"] .chroma .ss { color:#032f62 }
[data-theme="light"] .chroma .m  { color:#0550ae }
[data-theme="light"] .chroma .mb { color:#0550ae }
[data-theme="light"] .chroma .mf { color:#0550ae }
[data-theme="light"] .chroma .mh { color:#0550ae }
[data-theme="light"] .chroma .mi { color:#0550ae }
[data-theme="light"] .chroma .il { color:#0550ae }
[data-theme="light"] .chroma .mo { color:#0550ae }
[data-theme="light"] .chroma .o  { color:#0550ae }
[data-theme="light"] .chroma .ow { color:#0550ae }
[data-theme="light"] .chroma .p  { color:#1f2328 }
[data-theme="light"] .chroma .c  { color:#57606a }
[data-theme="light"] .chroma .ch { color:#57606a }
[data-theme="light"] .chroma .cm { color:#57606a }
[data-theme="light"] .chroma .c1 { color:#57606a }
[data-theme="light"] .chroma .cs { color:#57606a }
[data-theme="light"] .chroma .cp { color:#57606a }
[data-theme="light"] .chroma .cpf{ color:#57606a }
[data-theme="light"] .chroma .gd { color:#82071e;background-color:#ffebe9 }
[data-theme="light"] .chroma .ge { color:#1f2328 }
[data-theme="light"] .chroma .gi { color:#116329;background-color:#dafbe1 }
[data-theme="light"] .chroma .go { color:#1f2328 }
[data-theme="light"] .chroma .gl { text-decoration:underline }

/* ── COMPARISON TABLE ── */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin: 32px 0;
  font-size: 0.9rem;
}
.compare-table th {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-weight: 400;
}
.compare-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-mid);
  font-weight: 300;
  vertical-align: top;
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-table td:first-child {
  font-weight: 500;
  color: var(--text);
  font-size: 0.88rem;
  white-space: nowrap;
}

/* ── TAGS ── */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}
.tag.bad { background: rgba(224, 85, 85, 0.12); color: var(--bad); }
.tag.good { background: rgba(76, 175, 130, 0.12); color: var(--good); }
.tag.neutral { background: var(--surface); color: var(--text-dim); border: 1px solid var(--border); }

/* ── PILLAR CARDS ── */
.pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 32px 0;
}
.pillar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 22px;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 16px;
  align-items: start;
}
.pillar-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 6px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  flex-shrink: 0;
}
.pillar-title {
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
  font-size: 0.95rem;
}
.pillar-desc {
  font-size: 0.88rem;
  color: var(--text-mid);
  margin: 0;
  font-weight: 300;
  line-height: 1.6;
}
.pillar-desc p { font-size: inherit; color: inherit; margin: 0; }

/* ── DIVIDER ── */
article hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 56px 0;
}

/* ── FOOTNOTE ── */
.footnote {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 28px 0;
  font-size: 0.88rem;
  color: var(--text-dim);
  font-weight: 300;
  line-height: 1.65;
}
.footnote p { font-size: inherit; color: inherit; margin: 0; }
.footnote strong { color: var(--text-mid); font-weight: 500; }

/* ── CONCLUSION BOX ── */
.conclusion {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px;
  margin-top: 64px;
}
.conclusion h2 {
  margin-top: 0;
  margin-bottom: 16px;
}
.conclusion p {
  margin-bottom: 1em;
}
.conclusion p:last-child { margin-bottom: 0; }

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── DIAGRAMS ── */
.diagram {
  margin: 32px 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.diagram-inner {
  padding: 24px;
  display: flex;
  justify-content: center;
  overflow-x: auto;
  background: var(--surface);
}
.diagram-inner svg {
  max-width: 100%;
  height: auto;
  display: block;
}
.diagram-caption {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.diagram-light { display: none; }
[data-theme="light"] .diagram-light { display: flex; }
[data-theme="light"] .diagram-dark  { display: none; }

/* ── LIGHT MODE: CODE BLOCK OVERRIDES ── */
[data-theme="light"] .code-block .highlight pre {
  background-color: var(--code-bg) !important;
  color: var(--text) !important;
}
[data-theme="light"] .tag.bad { background: rgba(192, 48, 48, 0.10); }
[data-theme="light"] .tag.good { background: rgba(45, 138, 94, 0.12); }

/* ── READ NEXT ── */
.read-next {
  border-top: 1px solid var(--border);
  padding: 48px 0 80px;
}

.read-next-label {
  letter-spacing: 0.16em;
  margin-bottom: 20px;
}

.read-next-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 28px;
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.read-next-card:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.read-next-category {
  letter-spacing: 0.16em;
  color: var(--accent);
  flex-shrink: 0;
}

.read-next-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--text);
  line-height: 1.3;
  flex: 1;
}

.read-next-arrow {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-dim);
  flex-shrink: 0;
  transition: color 0.15s ease, transform 0.15s ease;
  display: inline-block;
}
.read-next-card:hover .read-next-arrow {
  color: var(--accent);
  transform: translateX(4px);
}

/* ── TOC SIDEBAR (wide screens only) ── */
.toc-sidebar {
  display: none;
  position: fixed;
  top: 120px;
  left: calc(50% + 450px);
  width: 200px;
  max-height: calc(100vh - 160px);
  overflow-y: auto;
  scrollbar-width: none;
}
.toc-sidebar::-webkit-scrollbar { display: none; }

@media (min-width: 1360px) {
  .toc-sidebar { display: block; }
}

.toc-label {
  letter-spacing: 0.16em;
  margin-bottom: 14px;
}

.toc-sidebar nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.toc-sidebar nav > ul > li { margin-bottom: 2px; }
.toc-sidebar nav > ul > li > a {
  display: flex;
  align-items: flex-start;
}
.toc-sidebar nav > ul > li > a::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-dim);
  margin-right: 8px;
  margin-top: 6px;
  flex-shrink: 0;
  transition: background 0.15s ease;
}
.toc-sidebar nav > ul > li > a:hover::before { background: var(--accent); }
.toc-sidebar nav a {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  text-decoration: none;
  line-height: 1.55;
  padding: 3px 0 3px 10px;
  border-left: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.toc-sidebar nav a:hover { color: var(--text); }
.toc-sidebar nav a.toc-active {
  color: var(--accent);
  border-left-color: var(--accent);
}
.toc-sidebar nav ul ul { display: none; }

/* ── TOC FLOAT BUTTON (below sidebar breakpoint) ── */
.toc-float {
  display: none;
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 200;
}

@media (min-width: 601px) and (max-width: 1359px) {
  .toc-float { display: block; }
}

.toc-float-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 10px 18px 10px 14px;
  border-radius: 100px;
  cursor: pointer;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.28);
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.toc-float-btn:hover { color: var(--text); border-color: var(--text-dim); }
.toc-float-btn[aria-expanded="true"] {
  color: var(--accent);
  border-color: var(--accent);
}

.toc-float-panel {
  position: absolute;
  bottom: calc(100% + 10px);
  right: 0;
  width: 232px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3);
  max-height: 55vh;
  overflow-y: auto;
  scrollbar-width: none;
  opacity: 0;
  transform: translateY(6px) scale(0.98);
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.toc-float-panel::-webkit-scrollbar { display: none; }
.toc-float-panel.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.toc-float-heading {
  letter-spacing: 0.16em;
  margin-bottom: 14px;
}

.toc-float-panel nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.toc-float-panel nav > ul > li { margin-bottom: 2px; }
.toc-float-panel nav > ul > li > a {
  display: flex;
  align-items: flex-start;
}
.toc-float-panel nav > ul > li > a::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-dim);
  margin-right: 8px;
  margin-top: 6px;
  flex-shrink: 0;
  transition: background 0.15s ease;
}
.toc-float-panel nav > ul > li > a:hover::before { background: var(--accent); }
.toc-float-panel nav a {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  text-decoration: none;
  padding: 4px 0;
  line-height: 1.5;
  transition: color 0.15s ease;
}
.toc-float-panel nav a:hover { color: var(--accent); }
.toc-float-panel nav ul ul { display: none; }

/* ── ABOUT PAGE ── */
.about-page > header {
  padding: 80px 0 48px;
  border-bottom: none;
  margin-bottom: 0;
}

.about-page > header h1 {
  margin-bottom: 0;
}

.about-links {
  display: flex;
  gap: 16px;
  margin-top: 48px;
}

.about-link {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s ease;
}

.about-link:hover {
  color: var(--text);
}

/* ── SHARE BAR ── */
.share-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 28px 0;
  border-top: 1px solid var(--border);
}
.share-label {
  letter-spacing: 0.16em;
}
.share-actions {
  display: flex;
  gap: 8px;
}
.share-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  color: var(--text-dim);
  padding: 6px 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  line-height: 0;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.share-btn:hover {
  color: var(--text);
  border-color: var(--text-dim);
}
.share-btn.copied {
  color: var(--good);
  border-color: var(--good);
}

/* ── GISCUS COMMENTS ── */
.giscus-wrap {
  border-top: 1px solid var(--border);
  padding: 40px 0 80px;
}
.giscus-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  color: var(--text-dim);
  transition: color 0.15s ease;
}
.giscus-toggle:hover { color: var(--text); }
.giscus-label {
  letter-spacing: 0.16em;
}
.giscus-chevron {
  transition: transform 0.2s ease;
}
.giscus-toggle[aria-expanded="true"] .giscus-chevron {
  transform: rotate(180deg);
}
.giscus-body {
  display: none;
  margin-top: 24px;
}
.giscus-body.is-open {
  display: block;
}

/* ── TOAST ── */
#toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--text);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 8px 16px;
  border-radius: 6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
  z-index: 10001;
  white-space: nowrap;
}
#toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── BACK TO TOP ── */
#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, color 0.15s ease, border-color 0.15s ease;
  z-index: 100;
}
#back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}
#back-to-top:hover {
  color: var(--text);
  border-color: var(--text-dim);
}

/* ── COPY BUTTON ── */
.copy-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-dim);
  padding: 0;
  display: flex;
  align-items: center;
  transition: color 0.15s ease;
  line-height: 0;
  margin-left: auto;
}
.copy-btn:hover { color: var(--text); }
.copy-btn.copied { color: var(--good); }

/* ── 404 PAGE ── */
.not-found {
  padding: 120px 0 80px;
  text-align: center;
}
.not-found-code {
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 20px;
}
.not-found-title {
  margin-bottom: 16px;
}
.not-found-desc {
  color: var(--text-dim);
  margin-bottom: 40px;
}
.not-found-home {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s ease;
}
.not-found-home:hover { color: var(--text); }

/* ── RESPONSIVE: TABLET (≤ 860px) ── */
@media (max-width: 860px) {
  .container { padding: 0 24px; }
}

/* ── RESPONSIVE: MOBILE (≤ 600px) ── */
@media (max-width: 600px) {
  body { font-size: 16px; }
  .container { padding: 0 16px; }
  .site-header { padding: 18px 0; }
  .site-name { display: none; }
  .site-header-row {
    width: 100%;
  }
  .site-nav-right {
    width: 100%;
    gap: 12px;
    align-items: center;
  }
  .theme-toggle {
    margin-left: auto;
    padding: 6px;
  }
  .site-desc { font-size: 10px; }
  article > header { padding: 36px 0 30px; margin-bottom: 36px; }
  h1 { font-size: clamp(1.75rem, 7vw, 2.2rem); }
  .subtitle { font-size: 0.9rem; }
  .post-title { font-size: 1.3rem; }
  article { padding-bottom: 48px; }
  .code-block { font-size: 12px; }
  .code-block .highlight pre { font-size: 12px !important; padding: 12px 14px !important; }
  .code-block .highlight code { font-size: 12px; }
  .compare-table { display: block; overflow-x: auto; }
  .conclusion { padding: 24px 20px; margin-top: 40px; }
  .read-next-card { flex-wrap: wrap; gap: 10px; padding: 18px 20px; }
  .read-next-title { width: 100%; }
  .read-next-arrow { margin-left: auto; }
  #back-to-top { bottom: 16px; right: 16px; }
  .pagination-nav { padding: 20px 0 60px; }
}

/* ── SKIP TO CONTENT ── */
.skip-to-content {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 10001;
  padding: 8px 16px;
  background: var(--text);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  border-radius: 0 0 6px 6px;
  text-decoration: none;
  transition: top 0.1s ease;
}
.skip-to-content:focus { top: 0; }

/* ── BREADCRUMBS ── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  padding: 24px 0 0;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s ease;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { color: var(--border); }
.breadcrumb-current { color: var(--text-mid); }

/* ── PREV / NEXT POST NAV ── */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 40px 0;
  border-top: 1px solid var(--border);
}
.post-nav-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-decoration: none;
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.post-nav-link:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.post-nav-link.is-next { text-align: right; }
.post-nav-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--text);
  line-height: 1.35;
}
.post-nav-link:hover .post-nav-title { color: var(--accent); }
.post-nav-placeholder { visibility: hidden; }

@media (max-width: 600px) {
  .post-nav { grid-template-columns: 1fr; }
  .post-nav-link.is-next { text-align: left; }
}

/* ── DIAGRAM CLICKABLE ── */
.diagram-clickable {
  cursor: zoom-in;
}

/* ── IMAGE LIGHTBOX ── */
.lightbox-trigger {
  cursor: zoom-in;
  display: inline-block;
  border: none;
  background: none;
  padding: 0;
  margin: 0;
}
#lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.88);
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}
#lightbox.is-open { display: flex; }
#lightbox img {
  max-width: 92vw;
  max-height: 92vh;
  object-fit: contain;
  border-radius: 4px;
  pointer-events: none;
}
#lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.7);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, border-color 0.15s;
}
#lightbox-close:hover { color: #fff; border-color: #fff; }
#lightbox-svg {
  display: none;
  align-items: center;
  justify-content: center;
  max-width: 92vw;
  max-height: 90vh;
  overflow: auto;
}
#lightbox-svg svg {
  display: block;
  max-width: 90vw;
  max-height: 88vh;
}

/* ── HUB HOMEPAGE ── */
.hub {
  padding: 80px 0 60px;
  animation: fadeUp 0.8s ease both;
  position: relative;
}

.hub-header {
  margin-bottom: 36px;
}

.hub-header h1 {
  margin-bottom: 16px;
  font-size: clamp(2.4rem, 6vw, 4rem);
  letter-spacing: -0.02em;
}

.hub-sections-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 10px;
}

.hub-sections-header {
  margin-bottom: 4px;
}

.hub-latest {
  margin-bottom: 24px;
}

.hub-latest-link {
  display: block;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  text-decoration: none;
  padding: 18px 20px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.hub-latest-link:hover {
  border-color: var(--accent);
  background: var(--surface);
}

.hub-latest-main {
  display: block;
}

.hub-latest-category {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.hub-latest-title {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 10px;
  transition: color 0.15s ease;
}

.hub-latest-subtitle {
  display: block;
  font-size: 0.92rem;
  color: var(--text-dim);
  font-weight: 300;
  line-height: 1.65;
  margin-bottom: 12px;
}

.hub-latest-meta {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.hub-latest-link:hover .hub-latest-title {
  color: var(--accent);
}

.hub-intro {
  font-size: 1.05rem;
  color: var(--text-mid);
  font-weight: 300;
  max-width: 560px;
  line-height: 1.7;
}

.hub-sections {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
}

.hub-section {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 18px;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: border-color 0.15s ease, background 0.15s ease;
  animation: fadeUp 0.6s ease both;
  animation-delay: calc(var(--i) * 0.08s);
}
.hub-section:first-child {
  border-top: none;
}
.hub-section:last-child { border-bottom: none; }
.hub-section:hover { background: var(--accent-dim); }

.hub-section-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  min-width: 120px;
}

.hub-section-title {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--text);
  transition: color 0.15s ease;
}

.hub-section-count {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 999px;
  letter-spacing: 0.04em;
}

.hub-section-desc {
  flex: 1;
  font-size: 0.88rem;
  color: var(--text-dim);
  font-weight: 300;
}

.hub-section-arrow {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-dim);
  flex-shrink: 0;
  transition: color 0.15s ease, transform 0.15s ease;
  display: inline-block;
  opacity: 0;
}

.hub-section:hover .hub-section-title { color: var(--accent); }
.hub-section:hover .hub-section-arrow {
  color: var(--accent);
  transform: translateX(4px);
  opacity: 1;
}

/* ── SECTION HEADERS ── */
.section-header {
  padding: 48px 0 0;
  margin-bottom: 8px;
  animation: fadeUp 0.8s ease both;
}

.section-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin-bottom: 8px;
}

.section-empty {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  padding: 60px 0;
  text-align: center;
}

/* ── SITE FOOTER ── */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0;
  border-top: 1px solid var(--border);
  margin-top: 48px;
}

.footer-copy {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-links a {
  color: var(--text-dim);
  transition: color 0.15s ease;
  line-height: 0;
}
.footer-links a:hover { color: var(--text); }

/* ── PROJECT CARDS ── */
.project-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  animation: fadeUp 0.9s 0.08s ease both;
}

.project-card {
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}

.project-card-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.project-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1.3;
}
.project-title a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.15s ease;
}
.project-title a:hover { color: var(--accent); }

.project-desc {
  font-size: 0.92rem;
  color: var(--text-dim);
  font-weight: 300;
  line-height: 1.65;
  margin-bottom: 14px;
}

.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.project-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 3px;
}

.project-links {
  display: flex;
  gap: 12px;
}

.project-link {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s ease;
}
.project-link:hover { color: var(--accent); }

.meta-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s ease;
}
.meta-link:hover { color: var(--accent); }

/* ── STATUS BADGES ── */
.status-badge {
  font-size: 9px;
  letter-spacing: 0.14em;
  padding: 2px 8px;
  border-radius: 3px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  line-height: 1;
}
.status-badge.status-active { color: var(--good); border-color: var(--good); }
.status-badge.status-wip { color: var(--accent); border-color: var(--accent); }
.status-badge.status-archived { color: var(--text-dim); }
.tool-card .status-badge {
  display: inline-block;
  width: fit-content;
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

/* ── TOOL CARDS ── */
.tool-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  animation: fadeUp 0.9s 0.08s ease both;
}

.tool-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  min-height: 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.tool-card-left {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.tool-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 4px;
  transition: color 0.15s ease;
}

.tool-desc {
  font-size: 0.88rem;
  color: var(--text-dim);
  font-weight: 300;
}


.tool-card:hover .tool-title { color: var(--accent); }
.tool-card:hover .hub-section-arrow {
  color: var(--accent);
  transform: translateX(4px);
  opacity: 1;
}

/* ── TOOL EMBED ── */
.tool-embed {
  margin: 32px 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.tool-embed iframe {
  width: 100%;
  height: 600px;
  border: none;
  background: var(--surface);
}

/* ── NOTE LIST ── */
.note-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  animation: fadeUp 0.9s 0.08s ease both;
}

.note-row {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: border-color 0.15s ease;
}

.note-date {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  flex-shrink: 0;
  min-width: 50px;
}

.note-title {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--text);
  transition: color 0.15s ease;
  flex: 1;
}

.note-row:hover .note-title { color: var(--accent); }

.note-tags {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.note-tag {
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 2px;
}

.note-article > header {
  padding: 48px 0 36px;
  margin-bottom: 36px;
}

/* ── RESPONSIVE: HUB + NEW SECTIONS (MOBILE) ── */
@media (max-width: 600px) {
  .hub { padding: 48px 0 40px; }
  .hub-section { flex-wrap: wrap; gap: 4px 12px; padding: 16px 14px; }
  .hub-section-left { min-width: auto; }
  .hub-section-desc { width: 100%; padding-left: 0; }
  .hub-section-arrow { display: none; }
  .hub-latest-title { font-size: 1.3rem; }
  .section-header { padding: 32px 0 0; }
  .site-footer { flex-direction: column; gap: 12px; align-items: flex-start; }
  .note-row { flex-wrap: wrap; gap: 4px 12px; }
  .note-tags { width: 100%; }
}