/* ============================================================
   Vladan Markovic — Personal Website
   Design: Technical/Blueprint on Warm Paper
   Typography: Inter (body) + IBM Plex Mono (labels)
   ============================================================ */

/* ── Inter (variable) ── */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../fonts/inter-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: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../fonts/inter-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;
}

/* ── IBM Plex Mono ── */
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/ibm-plex-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: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/ibm-plex-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: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/ibm-plex-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: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/ibm-plex-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;
}

/* ============================================================
   Design tokens
   ============================================================ */
:root {
  /* Type */
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Color — light (warm paper + deep ink) */
  --color-bg:           #faf7f2;
  --color-bg-soft:      #f1ece4;
  --color-bg-elevated:  #ffffff;
  --color-text:         #1a1713;
  --color-text-muted:   #6b635a;
  --color-text-subtle:  #a8a094;
  --color-accent:       #b54a18;
  --color-accent-soft:  rgba(181, 74, 24, 0.10);
  --color-rule:         #d9d1c4;
  --color-focus:        #b54a18;

  /* Spacing (rem) */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;
  --s-10: 8rem;

  /* Measure */
  --measure-narrow: 62ch;
  --measure-body:   68ch;
  --measure-wide:   78rem;

  /* Radius */
  --radius-sm: 2px;
  --radius-md: 4px;

  /* Motion */
  --ease:        cubic-bezier(0.2, 0, 0, 1);
  --ease-strong: cubic-bezier(0.3, 0, 0.3, 1);
  --dur-fast: 160ms;
  --dur-base: 240ms;
  --dur-slow: 400ms;
}

/* Dark theme — warm charcoal */
[data-theme="dark"] {
  --color-bg:           #14110d;
  --color-bg-soft:      #1c1813;
  --color-bg-elevated:  #221d17;
  --color-text:         #ebe0cc;
  --color-text-muted:   #a99d86;
  --color-text-subtle:  #6d6553;
  --color-accent:       #e08250;
  --color-accent-soft:  rgba(224, 130, 80, 0.15);
  --color-rule:         #2e281f;
  --color-focus:        #e08250;
}

/* ============================================================
   Reset & base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  font-feature-settings: "cv11" 1, "ss01" 1; /* subtle Inter stylistic tweaks */
  transition: background-color var(--dur-base) var(--ease),
              color var(--dur-base) var(--ease);
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--s-4);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.25rem, 1.8rem + 2.4vw, 3.75rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 600;
}

h2 {
  font-size: clamp(1.4rem, 1.2rem + 0.6vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.015em;
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
}

h4 { font-size: 1rem; font-weight: 600; }

p, ul, ol, dl, blockquote { margin: 0 0 var(--s-4); }

p { max-width: var(--measure-body); }

ul, ol { padding-left: 1.25rem; }
li + li { margin-top: var(--s-2); }

a {
  color: var(--color-text);
  text-decoration: underline;
  text-decoration-color: var(--color-rule);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--dur-fast) var(--ease),
              text-decoration-color var(--dur-fast) var(--ease);
}

a:hover, a:focus-visible {
  color: var(--color-accent);
  text-decoration-color: var(--color-accent);
}

strong { font-weight: 600; }

code, kbd, samp, pre {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

hr {
  border: 0;
  border-top: 1px solid var(--color-rule);
  margin: var(--s-7) 0;
}

/* ============================================================
   Accessibility utilities
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--s-4);
  padding: var(--s-3) var(--s-4);
  background: var(--color-bg-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-decoration: none;
  z-index: 1000;
  transition: top var(--dur-fast) var(--ease);
}
.skip-link:focus { top: var(--s-4); }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ============================================================
   Layout containers
   ============================================================ */
.container {
  width: min(var(--measure-wide), 100% - var(--s-7));
  margin-inline: auto;
}

.container.narrow {
  width: min(var(--measure-narrow), 100% - var(--s-7));
}

.container.two-column,
.container.two-column-hero {
  display: grid;
  gap: var(--s-7);
}

.container.two-column {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
}

.container.two-column-hero {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  align-items: start;
}

.container.single-column {
  width: min(var(--measure-wide), 100% - var(--s-7));
}

main {
  padding-block: var(--s-8) var(--s-10);
}

/* ============================================================
   Site header
   ============================================================ */
.site-header {
  border-bottom: 1px solid var(--color-rule);
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--color-bg) 85%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  z-index: 50;
  transition: border-color var(--dur-base) var(--ease),
              background-color var(--dur-base) var(--ease);
}

.site-header nav {
  width: min(var(--measure-wide), 100% - var(--s-7));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: var(--s-6);
  padding-block: var(--s-4);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.site-mark {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

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

.site-header nav ul {
  list-style: none;
  display: flex;
  gap: var(--s-5);
  margin: 0;
  padding: 0;
  flex: 1;
}

.site-header nav ul li { margin: 0; }

.site-header nav ul a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 400;
  padding-block: var(--s-1);
  transition: color var(--dur-fast) var(--ease);
}

.site-header nav ul a:hover,
.site-header nav ul a[aria-current="page"] {
  color: var(--color-text);
}

.site-header nav ul a[aria-current="page"] {
  color: var(--color-accent);
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--color-rule);
  color: var(--color-text-muted);
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  font-size: 0.85rem;
  cursor: pointer;
  display: grid;
  place-items: center;
  padding: 0;
  line-height: 1;
  transition: color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease),
              transform var(--dur-fast) var(--ease);
}

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

.theme-toggle:active {
  transform: scale(0.95);
}

/* ============================================================
   Site footer
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--color-rule);
  margin-top: var(--s-10);
  padding-block: var(--s-7);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.site-footer .footer-inner {
  width: min(var(--measure-wide), 100% - var(--s-7));
  margin-inline: auto;
  display: flex;
  gap: var(--s-6);
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
}

.site-footer nav {
  display: flex;
  gap: var(--s-5);
}

.site-footer a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.site-footer a:hover { color: var(--color-accent); }

.footer-meta {
  display: flex;
  gap: var(--s-4);
  flex-wrap: wrap;
}

.footer-meta .muted { color: var(--color-text-subtle); }

/* ============================================================
   Mono kicker
   ============================================================ */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--s-3);
}

.kicker::before {
  content: "";
  display: inline-block;
  width: 2em;
  height: 1px;
  background: currentColor;
}

/* Standalone kicker above h2 */
.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--s-3);
  display: flex;
  align-items: center;
  gap: var(--s-3);
}

.section-kicker::before {
  content: "";
  width: 1.75em;
  height: 1px;
  background: currentColor;
  flex-shrink: 0;
}

/* ============================================================
   Component: hero
   ============================================================ */
.hero {
  padding-block: var(--s-8) var(--s-7);
}

.hero h1 {
  max-width: 15ch;
  margin-bottom: var(--s-5);
}

.hero .hero-sub {
  font-size: clamp(1.05rem, 1rem + 0.3vw, 1.25rem);
  line-height: 1.55;
  color: var(--color-text-muted);
  max-width: 48ch;
  margin-bottom: var(--s-6);
}

.hero-tags {
  display: flex;
  gap: var(--s-3);
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--s-5);
}

.hero-tags span + span::before {
  content: "·";
  margin-right: var(--s-3);
  color: var(--color-text-subtle);
}

.hero-ctas {
  display: flex;
  gap: var(--s-5);
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.hero-ctas a {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  text-decoration: none;
  color: var(--color-text);
  padding-block: var(--s-2);
  border-bottom: 1px solid var(--color-rule);
  transition: color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease);
}

.hero-ctas a::before {
  content: "→";
  color: var(--color-accent);
  transition: transform var(--dur-fast) var(--ease);
}

.hero-ctas a:hover { color: var(--color-accent); border-color: var(--color-accent); }
.hero-ctas a:hover::before { transform: translateX(3px); }

/* ============================================================
   Component: prose
   ============================================================ */
.prose { margin-bottom: var(--s-8); }

.prose > h2 + p,
.prose > .section-kicker + h2 { margin-top: 0; }

.prose p, .prose li { max-width: var(--measure-body); }

.prose h2 { margin-top: 0; }

.prose h3 { margin-top: var(--s-6); }

.prose blockquote {
  margin: var(--s-5) 0;
  padding-left: var(--s-5);
  border-left: 2px solid var(--color-accent);
  color: var(--color-text-muted);
  font-style: italic;
}

/* ============================================================
   Component: timeline
   ============================================================ */
.timeline {
  border-left: 1px solid var(--color-rule);
  padding-left: var(--s-5);
  margin-left: var(--s-2);
}

.tl-item {
  position: relative;
  padding-bottom: var(--s-6);
}

.tl-item:last-child { padding-bottom: 0; }

.tl-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--s-5) - 5px);
  top: 0.4em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-text-subtle);
  box-sizing: border-box;
  transition: border-color var(--dur-base) var(--ease),
              background-color var(--dur-base) var(--ease);
}

.tl-item.current::before {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.tl-period {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  margin-bottom: var(--s-2);
}

.tl-item h3 {
  margin: 0 0 var(--s-1);
  font-size: 1.05rem;
  font-weight: 600;
}

.tl-org {
  display: block;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: var(--s-2);
}

.tl-item p {
  font-size: 0.95rem;
  margin-bottom: 0;
  color: var(--color-text-muted);
}

/* ============================================================
   Component: card-grid + card
   ============================================================ */
.card-grid {
  display: grid;
  gap: var(--s-5);
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.card {
  display: flex;
  flex-direction: column;
  padding: var(--s-5);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  transition: border-color var(--dur-base) var(--ease),
              background-color var(--dur-base) var(--ease);
}

.card:hover {
  border-color: var(--color-text-subtle);
}

.card .card-era {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--s-3);
}

.card h3 {
  margin: 0 0 var(--s-3);
  font-size: 1.1rem;
}

.card .card-body {
  flex: 1;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.card .card-body p { margin-bottom: var(--s-3); }
.card .card-body p:last-child { margin-bottom: 0; }

.card .card-tags {
  margin-top: var(--s-4);
  padding-top: var(--s-3);
  border-top: 1px dashed var(--color-rule);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--color-text-subtle);
  line-height: 1.6;
}

.card .card-tags span + span::before {
  content: " · ";
}

.card .card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  margin-top: var(--s-3);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-decoration: none;
  color: var(--color-accent);
  letter-spacing: 0.02em;
}

.card .card-link::after {
  content: "→";
  transition: transform var(--dur-fast) var(--ease);
}

.card:hover .card-link::after { transform: translateX(3px); }

/* ============================================================
   Component: tag-cloud
   ============================================================ */
.tag-cloud { margin-bottom: var(--s-7); }

.tag-cloud .tier {
  margin-bottom: var(--s-5);
}

.tag-cloud .tier-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--s-3);
  display: flex;
  align-items: center;
  gap: var(--s-3);
}

.tag-cloud .tier-label::before {
  content: "";
  width: 1.5em; height: 1px; background: currentColor;
}

.tag-cloud .tags {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.8;
  color: var(--color-text);
  max-width: 56ch;
}

.tag-cloud .tags span + span::before {
  content: "  ·  ";
  color: var(--color-text-subtle);
}

/* ============================================================
   Component: category-listing (blog)
   ============================================================ */
.category-listing { list-style: none; padding: 0; margin: 0; }

.category-listing > li {
  padding-block: var(--s-5);
  border-bottom: 1px solid var(--color-rule);
}

.category-listing > li:last-child { border-bottom: 0; }

.category-listing .post-meta {
  display: flex;
  gap: var(--s-4);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-bottom: var(--s-2);
  letter-spacing: 0.04em;
}

.category-listing .post-meta .category {
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.category-listing h3 {
  margin: 0 0 var(--s-2);
  font-size: 1.1rem;
  font-weight: 500;
}

.category-listing h3 a {
  text-decoration: none;
  color: var(--color-text);
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease);
}

.category-listing h3 a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.category-listing .post-excerpt {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin: 0;
  max-width: 62ch;
}

.writing-footnote {
  margin-top: var(--s-6);
  padding-top: var(--s-5);
  border-top: 1px solid var(--color-rule);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: flex;
  gap: var(--s-3);
  align-items: center;
}

.writing-footnote a { color: var(--color-accent); text-decoration: none; }
.writing-footnote a:hover { text-decoration: underline; text-decoration-thickness: 1px; }

/* ============================================================
   Component: era-strip
   ============================================================ */
.era-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0;
  position: relative;
  padding-block: var(--s-5);
  border-top: 1px solid var(--color-rule);
  border-bottom: 1px solid var(--color-rule);
  margin-block: var(--s-5);
}

.era-strip::before {
  content: "";
  position: absolute;
  left: 5%;
  right: 5%;
  top: 50%;
  height: 1px;
  background: var(--color-rule);
}

.era-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  padding-block: var(--s-2);
  gap: var(--s-2);
  text-align: center;
}

.era-node::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-accent);
  z-index: 1;
}

.era-node .era-years {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  order: 1;
}

.era-node .era-name {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-text);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  order: 3;
}

.era-node::after {
  content: "";
  display: block;
  height: var(--s-4);
  order: 2;
}

/* ============================================================
   Component: link-list
   ============================================================ */
.link-list { list-style: none; padding: 0; margin: 0; }

.link-list li {
  margin-block: 0;
  padding-block: var(--s-4);
  border-bottom: 1px solid var(--color-rule);
}

.link-list li:last-child { border-bottom: 0; }

.link-list .ll-date {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: var(--s-2);
}

.link-list a {
  text-decoration: none;
  font-weight: 500;
  color: var(--color-text);
  display: inline-flex;
  align-items: baseline;
  gap: var(--s-3);
  transition: color var(--dur-fast) var(--ease);
}

.link-list a::after {
  content: "→";
  color: var(--color-text-subtle);
  font-family: var(--font-mono);
  transition: color var(--dur-fast) var(--ease),
              transform var(--dur-fast) var(--ease);
}

.link-list a:hover { color: var(--color-accent); }
.link-list a:hover::after { color: var(--color-accent); transform: translateX(3px); }

/* ============================================================
   Component: labeled list (certifications)
   ============================================================ */
.labeled-list { list-style: none; padding: 0; margin: 0; }

.labeled-list li {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: var(--s-4);
  padding-block: var(--s-3);
  border-bottom: 1px solid var(--color-rule);
  margin: 0;
}

.labeled-list li:last-child { border-bottom: 0; }

.labeled-list .ll-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.labeled-list .ll-value {
  font-size: 0.95rem;
  color: var(--color-text);
}

/* ============================================================
   Component: table
   ============================================================ */
.table-wrap {
  overflow-x: auto;
  margin-block: var(--s-5);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

thead th {
  position: sticky;
  top: 0;
  background: var(--color-bg-soft);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-align: left;
  padding: var(--s-3) var(--s-4);
  border-bottom: 1px solid var(--color-rule);
}

tbody td {
  padding: var(--s-3) var(--s-4);
  border-bottom: 1px solid var(--color-rule);
  vertical-align: top;
}

tbody tr:last-child td { border-bottom: 0; }

tbody tr:nth-child(even) td { background: var(--color-bg-soft); }

td.num, td.year, td.mono {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* ============================================================
   Component: article
   ============================================================ */
.article {
  max-width: var(--measure-body);
  margin-inline: auto;
}

.article-header {
  margin-bottom: var(--s-7);
  padding-bottom: var(--s-5);
  border-bottom: 1px solid var(--color-rule);
}

.article-meta {
  display: flex;
  gap: var(--s-4);
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  margin-bottom: var(--s-4);
}

.article-meta .category {
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.article-meta .sep {
  color: var(--color-text-subtle);
}

.article-header h1 { margin-bottom: var(--s-3); max-width: 20ch; }

.article-lede {
  font-size: 1.15rem;
  line-height: 1.55;
  color: var(--color-text-muted);
  max-width: var(--measure-body);
  margin-bottom: 0;
}

.article-body h2 {
  margin-top: var(--s-7);
  margin-bottom: var(--s-4);
  scroll-margin-top: var(--s-6);
}

.article-body h3 {
  margin-top: var(--s-5);
  margin-bottom: var(--s-3);
}

.article-body p { line-height: 1.7; }

.article-footer {
  margin-top: var(--s-8);
  padding-top: var(--s-5);
  border-top: 1px solid var(--color-rule);
  display: flex;
  gap: var(--s-5);
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.article-footer a {
  color: var(--color-text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
}

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

/* ============================================================
   Breadcrumb
   ============================================================ */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  margin-bottom: var(--s-5);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  list-style: none;
  padding: 0;
  margin: 0;
}

.breadcrumb li { margin: 0; display: inline-flex; align-items: center; gap: var(--s-2); }
.breadcrumb li + li::before { content: "/"; color: var(--color-text-subtle); }

.breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.breadcrumb a:hover { color: var(--color-accent); }

.breadcrumb [aria-current="page"] { color: var(--color-text); }

/* ============================================================
   Home: NOW strip
   ============================================================ */
.now-strip {
  margin-block: var(--s-7);
  padding: var(--s-5) 0;
  border-top: 1px solid var(--color-rule);
  border-bottom: 1px solid var(--color-rule);
}

.now-strip p {
  font-size: 1.05rem;
  line-height: 1.55;
  max-width: 60ch;
  margin: 0;
  color: var(--color-text);
}

/* ============================================================
   Home: stats
   ============================================================ */
.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--s-5);
  margin-block: var(--s-6);
}

.stats > div {
  padding-top: var(--s-4);
  border-top: 1px solid var(--color-rule);
}

.stats .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 1.3rem + 1.2vw, 2.4rem);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-accent);
  margin-bottom: var(--s-2);
}

.stats .stat-label {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

/* ============================================================
   Page header (sub-page heroes)
   ============================================================ */
.page-header {
  padding-block: var(--s-6) var(--s-6);
  margin-bottom: var(--s-6);
  border-bottom: 1px solid var(--color-rule);
}

.page-header h1 { margin-bottom: var(--s-3); }

.page-header .page-lede {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 60ch;
  margin: 0;
}

/* ============================================================
   Section spacing
   ============================================================ */
section { margin-bottom: var(--s-8); }
section:last-child { margin-bottom: 0; }

/* ============================================================
   Motion: reveal class is a no-op marker.
   The hover, focus, and theme transitions already provide all the motion
   the site needs. The class is kept so future JS-driven reveal can latch
   onto it without editing the HTML.
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   View Transitions API (Chrome/Safari)
   ============================================================ */
@view-transition {
  navigation: auto;
}

::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 200ms;
  animation-timing-function: var(--ease);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 840px) {
  .container.two-column,
  .container.two-column-hero {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--s-6);
  }

  main { padding-block: var(--s-6) var(--s-8); }

  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .era-strip {
    grid-template-columns: minmax(0, 1fr);
    padding-inline: var(--s-4);
  }
  .era-strip::before { display: none; }
  .era-node {
    flex-direction: row;
    align-items: baseline;
    text-align: left;
    gap: var(--s-4);
    padding-inline: var(--s-5);
    border-left: 1px solid var(--color-rule);
  }
  .era-node::before {
    left: 0;
    top: 0.6em;
    transform: translateX(-50%);
  }
  .era-node::after { display: none; }
  .era-node .era-years { order: 0; }
  .era-node .era-name { order: 1; text-transform: none; letter-spacing: 0; }

  .site-header nav {
    gap: var(--s-4);
    flex-wrap: wrap;
  }
  .site-header nav ul {
    order: 3;
    flex-basis: 100%;
    gap: var(--s-4);
    overflow-x: auto;
    padding-bottom: var(--s-2);
  }

  .labeled-list li {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--s-1);
  }

  .site-footer .footer-inner {
    flex-direction: column;
    gap: var(--s-4);
  }
}

@media (max-width: 560px) {
  :root { --s-7: 2rem; }
  body { overflow-x: hidden; }

  .container,
  .container.narrow,
  .container.single-column {
    width: 100%;
    padding-inline: var(--s-4);
  }

  main { padding-block: var(--s-6) var(--s-7); }

  .site-header nav {
    padding-inline: var(--s-4);
    gap: var(--s-3);
    font-size: 0.78rem;
  }
  .site-header nav ul {
    order: 3;
    flex-basis: 100%;
    gap: var(--s-4);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
    scrollbar-width: none;
    padding-bottom: var(--s-2);
    margin-block: 0;
  }
  .site-header nav ul::-webkit-scrollbar { display: none; }
  .site-mark { font-size: 0.78rem; }

  .site-footer .footer-inner { padding-inline: var(--s-4); }

  h1 { letter-spacing: -0.02em; }
  .hero h1,
  .hero .hero-sub,
  .article-header h1,
  .page-header h1,
  .page-header .page-lede,
  .prose p,
  .prose li,
  .card .card-body p { max-width: 100%; }

  .stats { grid-template-columns: repeat(2, 1fr); gap: var(--s-4); }
  .stats .stat-num { font-size: 1.75rem; }
}

/* ============================================================
   Print
   ============================================================ */
@page {
  size: A4;
  margin: 1.5cm;
}

@media print {
  :root {
    --color-bg: #ffffff;
    --color-bg-soft: #ffffff;
    --color-bg-elevated: #ffffff;
    --color-text: #000000;
    --color-text-muted: #333333;
    --color-text-subtle: #666666;
    --color-accent: #000000;
    --color-rule: #000000;
  }

  html, body { background: #fff; color: #000; font-size: 10.5pt; }

  body { font-family: Inter, 'Helvetica Neue', Arial, sans-serif; }

  .site-header,
  .site-footer,
  .theme-toggle,
  .skip-link,
  .breadcrumb,
  .hero-ctas,
  .article-footer,
  .writing-footnote { display: none !important; }

  main { padding-block: 0; }

  .container,
  .container.narrow,
  .container.two-column,
  .container.two-column-hero,
  .container.single-column {
    width: 100%;
    display: block;
    padding: 0;
  }

  .container.two-column > *,
  .container.two-column-hero > * { margin-bottom: 1.5em; }

  h1 { font-size: 18pt; }
  h2 { font-size: 13pt; margin-top: 1.2em; }
  h3 { font-size: 11pt; }

  p, li { font-size: 10.5pt; line-height: 1.4; color: #000; }

  a { color: #000; text-decoration: none; }
  a[href^="http"]::after,
  a[href^="/"]::after {
    content: " (" attr(href) ")";
    font-family: 'IBM Plex Mono', monospace;
    font-size: 8.5pt;
    color: #555;
  }
  a[href^="#"]::after,
  a[href^="mailto:"]::after { content: ""; }

  .kicker,
  .section-kicker,
  .tl-period,
  .card-era,
  .tier-label,
  .post-meta,
  .article-meta {
    color: #000;
  }

  .tl-item::before {
    background: #fff;
    border-color: #000;
  }
  .tl-item.current::before { background: #000; }

  .timeline { border-left: 1px solid #000; }

  .card, .tl-item, article > section {
    page-break-inside: avoid;
    break-inside: avoid;
  }

  section { margin-bottom: 1em; }
  .card-grid { display: block; }
  .card {
    border: 1px solid #000;
    margin-bottom: 0.8em;
    padding: 0.6em 0.8em;
  }

  .stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8em;
    margin-block: 0.8em;
  }
  .stats .stat-num { font-size: 14pt; color: #000; }

  .era-strip {
    grid-template-columns: repeat(6, 1fr);
    border-color: #000;
  }
  .era-strip::before { background: #000; }
  .era-node::before { border-color: #000; background: #fff; }

  .tag-cloud .tags { color: #000; }

  table { font-size: 9pt; }
  thead th, tbody td { border-color: #000; }
  tbody tr:nth-child(even) td { background: #f4f4f4; }
}