/* Design tokens — drafting paper */
:root {
  --bg: #f0e8d4;
  --accent: #1e4a8c;
  --accent-dark: #0f3060;
  --text: #111e34;
  --text-muted: #4a5e78;
  --surface: #e4d8c4;
  --surface-hover: #d4c8b0;
  --border: #9aaac8;
  --border-subtle: #c4ccdc;
  --border-nav: #c8d0dc;
  --nav-bg: #e4d8c4;
  --nav-bg-scrolled: #ddd0bc;
  --install-bg: #ddd0bc;
  --install-border: #9aaac8;
  --tab-border: #b0b8cc;
  --tab-active-bg: #ddd0bc;
  --tab-separator: #bec8d8;
  --code-bg: #d8ccb8;
  --pre-bg: #ddd0bc;
  --pre-border: #9aaac8;
  --section-alt-bg: rgba(0,0,0,0.04);
  --surface-entry: rgba(0,0,0,0.02);
  --surface-entry-hover: rgba(0,0,0,0.04);
  --badge-hands-on-bg: rgba(30,74,140,0.1);
  --badge-concepts-bg: rgba(30,110,50,0.1);
  --badge-concepts-text: #1a5828;
  --badge-believes-bg: rgba(150,60,10,0.1);
  --badge-believes-text: #7a3008;
  --footer-text: rgba(17,30,52,0.35);
  --footer-border: #c4ccdc;
  --cred-border: #c4ccdc;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: 'Courier New', monospace;
  --radius: 8px;
  --max-w: 1100px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg);
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 39px, var(--grid) 39px, var(--grid) 40px),
    repeating-linear-gradient(90deg, transparent, transparent 39px, var(--grid) 39px, var(--grid) 40px);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Nav */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 2rem;
  padding: 0.75rem 2rem;
  background: rgba(10,22,40,0.7);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(74,158,255,0.1);
  transition: background 0.3s;
}

nav.scrolled {
  background: rgba(10,22,40,0.95);
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--accent); }
.nav-links a.nav-active { color: var(--accent); }

.btn-lang {
  background: none;
  border: 1px solid rgba(74,158,255,0.3);
  border-radius: var(--radius);
  color: var(--text);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0.25rem 0.6rem;
  transition: border-color 0.2s, background 0.2s;
}

.btn-lang:hover {
  border-color: var(--accent);
  background: var(--surface-hover);
}

/* Sections */
section {
  padding: 6rem 2rem;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
}

/* Hero */
#hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding-top: 4rem;
}

.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.hero-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  background: rgba(74,158,255,0.1);
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  border: 1px solid rgba(74,158,255,0.3);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.machine-wrap {
  position: relative;
  display: inline-block;
}

.machine-wrap svg {
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 2.5rem;
}

.install-block {
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(74,158,255,0.25);
  border-radius: var(--radius);
  padding: 0.75rem 1.25rem;
  margin-bottom: 2rem;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 100%;
}

.install-block .prompt {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.85rem;
  user-select: none;
}

.install-block code {
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.85rem;
  word-break: break-all;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

/* Install tabs */
.install-tabs {
  margin-bottom: 2rem;
  max-width: 640px;
}

.tab-buttons {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 0;
}

.tab-btn {
  background: rgba(74,158,255,0.06);
  border: 1px solid rgba(74,158,255,0.2);
  border-bottom: none;
  border-radius: var(--radius) var(--radius) 0 0;
  color: var(--text-muted);
  cursor: pointer;
  font-family: var(--font);
  font-size: 1.04rem;
  font-weight: 600;
  padding: 0.45rem 1rem;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
  position: relative;
  bottom: -1px;
}

.tab-btn:hover { color: var(--text); background: rgba(74,158,255,0.05); }

.tab-btn.active {
  color: var(--accent);
  background: rgba(0,0,0,0.4);
  border-color: rgba(74,158,255,0.25);
  border-bottom-color: rgba(0,0,0,0.4);
}

.tab-panel {
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(74,158,255,0.25);
  border-radius: 0 var(--radius) var(--radius) var(--radius);
  padding: 0.75rem 1.25rem;
}

.tab-panel.active { display: flex; }

.tab-panel .install-block {
  background: none;
  border: none;
  padding: 0.25rem 0;
  margin-bottom: 0;
}

.tab-panel .install-block + .install-block {
  border-top: 1px solid rgba(74,158,255,0.1);
  padding-top: 0.5rem;
  margin-top: 0.25rem;
}

/* Buttons */
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #0a1628;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: background 0.2s, transform 0.15s;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: #6ab3ff;
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-block;
  background: transparent;
  color: var(--accent);
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  text-decoration: none;
  letter-spacing: 0.02em;
  border: 1px solid rgba(74,158,255,0.4);
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: rgba(74,158,255,0.08);
  transform: translateY(-1px);
}

/* Section headings */
h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.section-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-divider {
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin-bottom: 3rem;
}

/* Skills grid */
#skills { background: rgba(0,0,0,0.15); }

#skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.skill-card {
  background: var(--surface);
  border: 1px solid rgba(74,158,255,0.15);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
}

.skill-card:hover {
  border-color: var(--accent);
  background: var(--surface-hover);
  transform: translateY(-2px);
}

.skill-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.skill-cmd {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  background: rgba(0,0,0,0.3);
  padding: 0.35rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  word-break: break-all;
}

.skill-cmd-args {
  display: block;
  color: #666;
  margin-top: 0.15rem;
}

.skill-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.skill-version {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.75rem;
  color: rgba(74,158,255,0.6);
  font-family: var(--mono);
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.cred-list {
  list-style: none;
  margin-bottom: 1.5rem;
}

.cred-list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-size: 0.95rem;
  color: var(--text-muted);
  padding-left: 1.25rem;
  position: relative;
}

.cred-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.about-body {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* Contact */
#contact { text-align: center; }

.contact-inner { max-width: 600px; margin: 0 auto; }

.contact-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  color: rgba(255,255,255,0.2);
  font-size: 0.8rem;
  border-top: 1px solid rgba(255,255,255,0.05);
}

/* Utility */
.mono { font-family: var(--mono); }

/* Responsive */
@media (max-width: 768px) {
  #skills-grid {
    grid-template-columns: 1fr;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  nav { padding: 1rem; }

  .nav-links { gap: 1rem; }

  section { padding: 4rem 1.25rem; }
}

@media (max-width: 480px) {
  .nav-links a { font-size: 0.8rem; }
  h1 { font-size: 2rem; }
}

/* ── Skills Doc Page ─────────────────────────────────────────────── */

.docs-page-header {
  padding: 3rem 2rem 1.5rem;
  max-width: 1440px;
  margin: 0 auto;
}

.docs-page-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 0;
}

.docs-page-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-top: 0.75rem;
}

.docs-header-row {
  display: flex;
  align-items: flex-start;
  gap: 2.5rem;
  flex-wrap: wrap;
  margin-bottom: 0;
}

.docs-header-left {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.docs-header-actions {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}

#docs-header-install {
  flex: 1;
  min-width: 280px;
}

#docs-header-install .install-tabs {
  margin-bottom: 0;
}

.docs-layout {
  display: grid;
  grid-template-columns: 260px 1fr 200px;
  min-height: calc(100vh - 64px);
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 2rem 6rem;
  gap: 2rem;
}

/* Sidebar */
.docs-sidebar {
  position: sticky;
  top: 64px;
  height: calc(100vh - 64px);
  overflow-y: auto;
  padding: 1.5rem 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(74,158,255,0.2) transparent;
}

.docs-sidebar::-webkit-scrollbar { width: 6px; }
.docs-sidebar::-webkit-scrollbar-track { background: transparent; }
.docs-sidebar::-webkit-scrollbar-thumb { background: rgba(74,158,255,0.2); border-radius: 3px; }

/* Plugin group (outer collapsible) */
.plugin-group {
  margin-bottom: 0.75rem;
  border-radius: var(--radius);
  overflow: hidden;
}

.plugin-group > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.75rem;
  cursor: pointer;
  list-style: none;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border-radius: var(--radius);
  transition: background 0.15s;
  user-select: none;
}

.plugin-group > summary::-webkit-details-marker { display: none; }

.plugin-group > summary:hover { background: var(--surface-hover); }

.plugin-group > summary::after {
  content: '›';
  font-size: 1rem;
  font-weight: 400;
  transition: transform 0.2s;
  opacity: 0.6;
}

.plugin-group[open] > summary::after { transform: rotate(90deg); }

.plugin-badge {
  font-size: 0.7rem;
  background: rgba(74,158,255,0.12);
  color: var(--accent);
  padding: 0.2rem 0.7rem;
  border-radius: 100px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
}

/* Sidebar skill links */
.sidebar-skills {
  list-style: none;
  padding: 0.375rem 0 0.75rem;
}

.sidebar-skills a {
  display: block;
  padding: 0.8rem 1.1rem 0.8rem 1.9rem;
  font-family: var(--mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-muted);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
  border-radius: 0 var(--radius) var(--radius) 0;
  word-break: break-all;
}

.sidebar-cmd-args {
  display: block;
  font-weight: 700;
  color: #999;
  font-size: 0.78rem;
  margin-top: 0.1rem;
}

.sidebar-skills a:hover {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--surface);
}

.sidebar-skills a.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--surface-hover);
}

/* Content pane */
.docs-content {
  padding: 1.5rem 0;
  min-width: 0;
}

/* Skill entry (inner collapsible) */
.skill-entry {
  margin-bottom: 1.1rem;
  border: 1px solid rgba(74,158,255,0.08);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.02);
  transition: border-color 0.2s, background 0.2s;
  scroll-margin-top: 120px;
}

.skill-entry:hover {
  background: rgba(255,255,255,0.03);
  border-color: rgba(74,158,255,0.15);
}

.skill-entry:target {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(74,158,255,0.2);
}

.skill-entry[open] {
  background: rgba(255,255,255,0.025);
  border-color: rgba(74,158,255,0.18);
}

.skill-entry > summary {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background 0.15s;
  border-radius: var(--radius);
}

.skill-entry > summary::-webkit-details-marker { display: none; }
.skill-entry[open] > summary { border-bottom: 1px solid rgba(74,158,255,0.1); border-radius: var(--radius) var(--radius) 0 0; }
.skill-entry > summary:hover { background: var(--surface-hover); }

.skill-entry-name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  flex-shrink: 0;
}

.skill-entry-cmd {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--text-muted);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.skill-entry-ver {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: rgba(74,158,255,0.4);
  flex-shrink: 0;
}

.skill-entry > summary::after {
  content: '›';
  font-size: 1rem;
  color: var(--text-muted);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.skill-entry[open] > summary::after { transform: rotate(90deg); }

/* Skill detail body */
.skill-detail {
  padding: 1.25rem 1.25rem;
}

.skill-detail-section {
  margin-bottom: 1.25rem;
}

.skill-detail-section:last-child { margin-bottom: 0; }

.detail-label {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.9rem;
  opacity: 0.8;
}

.detail-body {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.detail-body code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: rgba(0,0,0,0.3);
  padding: 0.1em 0.35em;
  border-radius: 3px;
  color: var(--text);
}

.detail-body ul {
  padding-left: 2.25rem;
  margin-top: 0.75rem;
}

.detail-body li {
  margin-bottom: 0.65rem;
}

.detail-body em { color: var(--text); font-style: normal; }
.detail-body strong { color: var(--text); }

/* Plugin section heading in content */
.plugin-heading {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(74,158,255,0.55);
  padding: 0 0 0.5rem;
  margin: 2rem 0 1rem;
  border-bottom: 1px solid rgba(74,158,255,0.08);
}

.plugin-heading:first-child { margin-top: 0; }

.docs-global-install-label,
.plugin-install-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(74,158,255,0.55);
  margin-bottom: 0.75rem;
}

/* Per-plugin install block */
.plugin-install-block {
  margin-bottom: 2rem;
}

/* Doc page responsive */
@media (max-width: 1100px) {
  .docs-layout {
    grid-template-columns: 1fr;
    padding: 0 1.875rem 4.5rem;
  }

  .docs-sidebar {
    position: static;
    height: auto;
    border-bottom: 1px solid rgba(74,158,255,0.1);
    padding: 1.5rem 0;
    margin-bottom: 1.5rem;
  }

  .docs-page-header { padding: 6rem 1.875rem 3rem; }
  .docs-toc { display: none; }
}

/* TOC right column */
.docs-toc {
  position: sticky;
  top: 64px;
  height: calc(100vh - 64px);
  overflow-y: auto;
  padding: 1.5rem 0 1.5rem 1rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  border-left: 1px solid var(--border-subtle);
}

.docs-toc-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.docs-toc ul {
  list-style: none;
  padding: 0;
}

.docs-toc li a {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.3rem 0;
  line-height: 1.4;
  transition: color 0.15s;
}

.docs-toc li a:hover,
.docs-toc li a.active {
  color: var(--accent);
}

.docs-toc li.toc-h3 a {
  padding-left: 0.75rem;
  font-size: 0.75rem;
}

/* ── Blog Page ─────────────────────────────────────────────── */

.blog-page-header {
  padding: 3rem 2rem 1.5rem;
  max-width: 1440px;
  margin: 0 auto;
}

.blog-page-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
}

.blog-page-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

/* Sidebar filter bar (blog sidebar) */
.blog-sidebar-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  padding: 0.75rem 1.1rem 0.75rem;
}

/* Filter bar */
.blog-filter-bar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 0 3rem 2rem;
  max-width: var(--max-w);
  margin: 0 auto;
}

.blog-filter-btn {
  background: none;
  border: 1px solid rgba(74,158,255,0.25);
  border-radius: 100px;
  color: var(--text-muted);
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.35rem 1rem;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.blog-filter-btn:hover {
  color: var(--text);
  border-color: var(--accent);
}

.blog-filter-btn.active {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(74,158,255,0.1);
}

/* Post list */
.blog-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding: 0 3rem 6rem;
  max-width: var(--max-w);
  margin: 0 auto;
}

.blog-card {
  background: var(--surface);
  border: 1px solid rgba(74,158,255,0.15);
  border-radius: var(--radius);
  padding: 1.5rem;
  cursor: pointer;
  text-decoration: none;
  display: block;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
}

.blog-card:hover {
  border-color: var(--accent);
  background: var(--surface-hover);
  transform: translateY(-2px);
}

.blog-card-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.blog-type-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
}

.blog-type-badge.hands_on {
  background: rgba(74,158,255,0.15);
  color: var(--accent);
}

.blog-type-badge.concepts {
  background: rgba(74,255,158,0.1);
  color: #4aff9e;
}

.blog-type-badge.believes {
  background: rgba(255,158,74,0.1);
  color: #ff9e4a;
}

.blog-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.blog-card-meta {
  font-size: 0.75rem;
  color: rgba(160,180,204,0.6);
}

/* Post detail */
.blog-post-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 3rem 6rem;
}

.blog-post-back {
  display: inline-block;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2rem;
  transition: opacity 0.15s;
}

.blog-post-back:hover { opacity: 0.7; }

.blog-post-header {
  margin-bottom: 2rem;
}

.blog-post-header .blog-type-badge {
  margin-bottom: 1rem;
}

.blog-post-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 0.75rem;
}

.blog-post-meta {
  font-size: 0.8rem;
  color: rgba(160,180,204,0.6);
  display: flex;
  gap: 1.5rem;
}

.blog-no-translation {
  background: rgba(255,158,74,0.1);
  border: 1px solid rgba(255,158,74,0.3);
  border-radius: var(--radius);
  color: #ff9e4a;
  font-size: 0.85rem;
  padding: 0.6rem 1rem;
  margin-bottom: 2rem;
}

/* Prose */
.blog-post-body {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.blog-post-body h1,
.blog-post-body h2,
.blog-post-body h3 {
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 2rem 0 0.75rem;
}

.blog-post-body h1 { font-size: 1.75rem; }
.blog-post-body h2 { font-size: 1.35rem; }
.blog-post-body h3 { font-size: 1.1rem; color: var(--accent); }

.blog-post-body p { margin-bottom: 1.1rem; }

.blog-post-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.blog-post-body code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: rgba(0,0,0,0.35);
  padding: 0.1em 0.4em;
  border-radius: 3px;
  color: var(--text);
}

.blog-post-body pre {
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(74,158,255,0.2);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

.blog-post-body pre code {
  background: none;
  padding: 0;
  font-size: 0.88rem;
  line-height: 1.6;
}

.blog-post-body ul,
.blog-post-body ol {
  padding-left: 1.75rem;
  margin-bottom: 1.1rem;
}

.blog-post-body li { margin-bottom: 0.4rem; }

.blog-post-body blockquote {
  border-left: 3px solid var(--accent);
  margin: 1.5rem 0;
  padding: 0.5rem 0 0.5rem 1.25rem;
  color: rgba(160,180,204,0.8);
  font-style: italic;
}

.blog-post-body hr {
  border: none;
  border-top: 1px solid rgba(74,158,255,0.1);
  margin: 2rem 0;
}

/* Blog responsive */
@media (max-width: 1100px) {
  .blog-list {
    grid-template-columns: repeat(2, 1fr);
    padding: 0 1.875rem 4.5rem;
  }
  .blog-filter-bar { padding: 0 1.875rem 2rem; }
  .blog-page-header { padding: 6rem 1.875rem 2rem; }
  .blog-post-wrap { padding: 0 1.875rem 4.5rem; }
}

/* ══════════════════════════════════════════════════════
   DRAFTING PAPER — override hardcoded dark-mode values
   (all previously hardcoded rgba/hex replaced via new tokens)
══════════════════════════════════════════════════════ */

/* remove grid background */
body { background-image: none; }

/* bold all code text */
code, .skill-entry-cmd { font-weight: 700; }

/* wave underline adapts to accent colour */
.machine-wrap svg path { stroke: var(--accent); }

/* sections stack above the fixed overlay */
section, footer { position: relative; z-index: 1; }

/* nav */
nav { background: var(--nav-bg); backdrop-filter: none; border-bottom-color: var(--border-nav); }
nav.scrolled { background: var(--nav-bg-scrolled); }
.btn-lang { border-color: var(--border); }

/* hero */
.hero-tag { background: var(--badge-hands-on-bg); border-color: var(--border); }

/* install tabs */
.install-block { background: var(--install-bg); border-color: var(--install-border); }
.tab-btn { border-color: var(--tab-border); background: var(--surface); }
.tab-btn:hover { background: var(--surface-hover); }
.tab-btn.active { background: var(--tab-active-bg); border-color: var(--install-border); border-bottom-color: var(--tab-active-bg); }
.tab-panel { background: var(--tab-active-bg); border-color: var(--install-border); }
.tab-panel .install-block { background: var(--code-bg); border-color: var(--border-subtle); }
.tab-panel .install-block + .install-block { border-top-color: var(--tab-separator); }

/* buttons */
.btn-primary { color: var(--bg); }
.btn-secondary { border-color: var(--border); }
.btn-secondary:hover { background: var(--surface-hover); border-color: var(--accent); }

/* skills section */
#skills { background: var(--section-alt-bg); }
.skill-card { border-color: var(--border); }
.skill-cmd { background: var(--code-bg); }
.skill-version { color: var(--accent); opacity: 0.55; }

/* about */
.cred-list li { border-bottom-color: var(--cred-border); }

/* footer */
footer { color: var(--footer-text); border-top-color: var(--footer-border); }

/* ── docs page ── */
.docs-sidebar { scrollbar-color: var(--border) transparent; }
.docs-sidebar::-webkit-scrollbar-thumb { background: var(--border); }
.docs-sidebar { border-bottom-color: var(--border); }
.plugin-badge { background: var(--badge-hands-on-bg); }
.plugin-heading { color: var(--accent); opacity: 0.75; border-bottom-color: var(--border-subtle); }
.docs-global-install-label, .plugin-install-label { color: var(--accent); opacity: 0.65; }
.skill-entry { border-color: var(--border-subtle); background: var(--surface-entry); }
.skill-entry:hover { border-color: var(--border); background: var(--surface-entry-hover); }
.skill-entry[open] { background: var(--surface-entry); border-color: var(--border); }
.skill-entry:target { border-color: var(--accent); box-shadow: 0 0 0 1px var(--border); }
.skill-entry[open] > summary { border-bottom-color: var(--border-subtle); }
.detail-body code { background: var(--code-bg); }

/* ── blog page ── */
.blog-filter-btn { border-color: var(--border); }
.blog-filter-btn.active { border-color: var(--accent); background: var(--surface-hover); color: var(--accent); }
.blog-card { border-color: var(--border); }
.blog-type-badge.hands_on { background: var(--badge-hands-on-bg); color: var(--accent); }
.blog-type-badge.concepts  { background: var(--badge-concepts-bg); color: var(--badge-concepts-text); }
.blog-type-badge.believes  { background: var(--badge-believes-bg); color: var(--badge-believes-text); }
.blog-card-meta, .blog-post-meta { color: var(--text-muted); opacity: 0.75; }
.blog-no-translation { background: var(--badge-believes-bg); border-color: var(--badge-believes-text); color: var(--badge-believes-text); }
.blog-post-body code { background: var(--code-bg); color: var(--text); }
.blog-post-body pre { background: var(--pre-bg); border-color: var(--pre-border); }
.blog-post-body blockquote { border-left-color: var(--accent); color: var(--text-muted); }
.blog-post-body hr { border-top-color: var(--border-subtle); }
/* anchor cards inherit text colour */
.blog-card { color: var(--text); }

/* ══════════════════════════════════════════════════════
   VITRUVIAN WATERMARK — centred, fixed, behind content
   mix-blend-mode: multiply removes white paper bg,
   only ink strokes show over the cream background
══════════════════════════════════════════════════════ */

.vit-watermark {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: auto;
  pointer-events: none;
  z-index: 0;
  mix-blend-mode: multiply;
  opacity: 0.06;
  user-select: none;
}

@media (max-width: 640px) {
  .blog-list { grid-template-columns: 1fr; }
}

/* ── White-card center body (blog + docs) — comment out to disable ── */
#blog-content-inner,
#docs-content-inner {
  background: #fff;
  border-radius: var(--radius);
  padding: 2rem 2.5rem;
  box-shadow: 0 1px 8px rgba(0,0,0,0.07);
}
/* ─────────────────────────────────────────────────────────────────── */