/*
 * Personal website - spacious editorial/technical monochrome theme.
 * Single shared stylesheet. No frameworks. Monochrome only (black/white/greys).
 * No gradients, glows, or coloured accents.
 */

/* ==========================================================================
   1. Design tokens
   ========================================================================== */

:root {
  --bg: #ffffff;
  --bg-elevated: #f6f6f6;
  --bg-inset: #efefef;
  --fg: #161616;
  --fg-muted: #555555;
  --fg-faint: #6e6e6e;
  --border: #dedede;
  --border-strong: #bdbdbd;
  --rule: #e4e4e4;
  --code-bg: #f1f1f1;
  --focus: #000000;
  --card-bg: #ffffff;
  --mark-bg: #161616;
  --mark-fg: #ffffff;

  /* Boxed navigation (AGENTS.md): inactive dark grey, active lighter grey. */
  --nav-box-bg: #333333;
  --nav-box-fg: #fafafa;
  --nav-box-active-bg: #cccccc;
  --nav-box-active-fg: #161616;
  --nav-box-hover-bg: #161616;
  --nav-box-hover-fg: #ffffff;

  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --max-width: 70rem; /* ~1120px spacious editorial container */

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  --radius: 6px;
  --rule-width: 1px;
}

/* Explicit dark choice. */
[data-theme="dark"] {
  --bg: #0b0b0b;
  --bg-elevated: #141414;
  --bg-inset: #1c1c1c;
  --fg: #f4f4f4;
  --fg-muted: #b8b8b8;
  --fg-faint: #a3a3a3;
  --border: #2b2b2b;
  --border-strong: #4a4a4a;
  --rule: #232323;
  --code-bg: #1a1a1a;
  --focus: #ffffff;
  --card-bg: #111111;
  --mark-bg: #f4f4f4;
  --mark-fg: #0b0b0b;

  --nav-box-bg: #cccccc;
  --nav-box-fg: #0b0b0b;
  --nav-box-active-bg: #333333;
  --nav-box-active-fg: #f4f4f4;
  --nav-box-hover-bg: #f4f4f4;
  --nav-box-hover-fg: #0b0b0b;
}

/* System fallback when no explicit data-theme is set (first visit, no JS). */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #0b0b0b;
    --bg-elevated: #141414;
    --bg-inset: #1c1c1c;
    --fg: #f4f4f4;
    --fg-muted: #b8b8b8;
    --fg-faint: #a3a3a3;
    --border: #2b2b2b;
    --border-strong: #4a4a4a;
    --rule: #232323;
    --code-bg: #1a1a1a;
    --focus: #ffffff;
    --card-bg: #111111;
    --mark-bg: #f4f4f4;
    --mark-fg: #0b0b0b;
    --nav-box-bg: #cccccc;
    --nav-box-fg: #0b0b0b;
    --nav-box-active-bg: #333333;
    --nav-box-active-fg: #f4f4f4;
    --nav-box-hover-bg: #f4f4f4;
    --nav-box-hover-fg: #0b0b0b;
  }
}

/* ==========================================================================
   2. Reset and base
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  margin: 0 0 var(--space-md);
  font-weight: 650;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--fg);
  overflow-wrap: break-word;
}

h1 {
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
}

h3 {
  font-size: clamp(1.15rem, 2vw, 1.35rem);
}

p {
  margin: 0 0 var(--space-md);
  overflow-wrap: break-word;
}

a {
  color: var(--fg);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--fg-muted);
}

img, svg {
  max-width: 100%;
  height: auto;
}

img {
  display: block;
}

code, kbd, samp, pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

code {
  background-color: var(--code-bg);
  padding: 0.12em 0.4em;
  border-radius: 4px;
  overflow-wrap: break-word;
}

pre {
  background-color: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-md);
  overflow-x: auto;
  margin: var(--space-md) 0;
}

pre code {
  background: none;
  padding: 0;
}

ul, ol {
  margin: 0 0 var(--space-md);
  padding-left: var(--space-xl);
}

li {
  margin-bottom: var(--space-xs);
  overflow-wrap: break-word;
}

dl {
  margin: 0 0 var(--space-md);
}

dt {
  font-weight: 600;
}

dd {
  margin: var(--space-xs) 0 var(--space-md) 0;
  color: var(--fg-muted);
}

hr {
  border: none;
  border-top: var(--rule-width) solid var(--rule);
  margin: var(--space-xl) 0;
}

figure {
  margin: 0;
}

/* Visible focus for keyboard users in both themes. */
a:focus-visible,
button:focus-visible,
[href]:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ==========================================================================
   3. Accessibility helpers
   ========================================================================== */

.skip-link {
  position: absolute;
  left: var(--space-md);
  top: -100px;
  z-index: 200;
  background: var(--fg);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  padding: 0.75rem 1rem;
  border-radius: 4px;
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.skip-link:focus {
  top: var(--space-md);
  color: var(--bg);
}

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

/* Shown only when printing (for example a print-only CV heading). */
.print-only {
  display: none;
}

/* ==========================================================================
   4. Layout: container, header, footer
   ========================================================================== */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
  min-width: 0;
}

.site-header {
  border-bottom: var(--rule-width) solid var(--border);
  background-color: var(--bg);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
  flex-wrap: nowrap;
}

.site-header nav {
  flex: 1 1 auto;
  min-width: 0;
  order: 2;
}

.site-header .theme-toggle {
  order: 3;
}

/* Native grouped navigation remains usable without JavaScript. */
.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li {
  margin: 0;
  flex: 1 1 auto;
  min-width: 4.5rem;
}

.nav-links a, .nav-group > summary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 100%;
  min-height: 44px;
  padding: 0.55rem 0.8rem;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--nav-box-fg);
  background-color: var(--nav-box-bg);
  border: 1px solid transparent;
  border-radius: 4px;
  text-align: center;
  overflow-wrap: break-word;
}

.nav-links a:hover, .nav-group > summary:hover {
  color: var(--nav-box-hover-fg);
  background-color: var(--nav-box-hover-bg);
  border-color: var(--border-strong);
  text-decoration: none;
}

.nav-links a[aria-current="page"], .nav-group.is-current > summary {
  color: var(--nav-box-active-fg);
  background-color: var(--nav-box-active-bg);
  border-color: var(--border-strong);
}

.nav-links a[aria-current="page"]:hover, .nav-group.is-current > summary:hover {
  color: var(--nav-box-hover-fg);
  background-color: var(--nav-box-hover-bg);
}

.nav-group { position: relative; }

.nav-group > summary {
  cursor: pointer;
  list-style: none;
  gap: 0.4rem;
}

.nav-group > summary::-webkit-details-marker { display: none; }
.nav-group > summary::after { content: '▾'; }
.nav-group[open] > summary::after { content: '▴'; }

.nav-submenu {
  position: absolute;
  z-index: 2;
  top: calc(100% + 0.35rem);
  right: 0;
  width: 14rem;
  max-width: calc(100vw - 2rem);
  list-style: none;
  margin: 0;
  padding: var(--space-sm);
  display: grid;
  gap: var(--space-sm);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

.nav-submenu li { min-width: 0; }
.nav-submenu a { justify-content: flex-start; text-align: left; }

.menu-toggle {
  margin-right: auto;
  min-height: 44px;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elevated);
  color: var(--fg);
  font: inherit;
  cursor: pointer;
}

@media (min-width: 56.001rem) {
  .site-header { position: sticky; top: 0; z-index: 10; }
  html { scroll-padding-top: 8rem; }
}

@media (max-width: 56rem) {
  .site-header .menu-toggle { order: 2; }
  .site-header .theme-toggle { order: 3; }
  .site-header nav { order: 4; }
  .nav-links > li { flex: 1 1 calc(50% - var(--space-sm)); }
  .nav-submenu {
    position: static;
    width: auto;
    margin-top: var(--space-sm);
    padding: var(--space-sm);
  }
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elevated);
  color: var(--fg);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
}

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

.site-footer {
  border-top: var(--rule-width) solid var(--border);
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
  color: var(--fg-muted);
  font-size: 0.925rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: start;
}

.footer-name {
  font-weight: 650;
  color: var(--fg);
  margin: 0 0 var(--space-xs);
  font-size: 1rem;
}

.site-footer p {
  margin: 0 0 var(--space-sm);
}

.footer-note {
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.footer-small {
  font-size: 0.85rem;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.15rem;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.925rem;
}

.footer-links a:hover {
  color: var(--fg);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ==========================================================================
   5. Shared content primitives (used by every page)
   ========================================================================== */

.page-intro {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: var(--rule-width) solid var(--rule);
  margin-bottom: var(--space-xl);
}

.page-intro h1 {
  margin-bottom: var(--space-md);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 var(--space-md);
}

.lead {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.65;
  color: var(--fg-muted);
  max-width: 46rem;
  margin: 0;
}

.section {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: var(--rule-width) solid var(--rule);
}

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

.section-heading {
  display: grid;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  max-width: 52rem;
}

.section-heading h2 {
  margin: 0;
}

.section-heading p {
  margin: 0;
  color: var(--fg-muted);
}

.grid-two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-lg);
  align-items: stretch;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-lg);
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.card h2, .card h3 {
  margin: 0;
}

.card p {
  margin: 0;
  color: var(--fg-muted);
}

.card > :last-child {
  margin-top: auto;
}

.section > .card + .card {
  margin-top: var(--space-lg);
}

.tag-list {
  list-style: none;
  margin: var(--space-sm) 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.tag-list li {
  margin: 0;
  max-width: 100%;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elevated);
  color: var(--fg-muted);
  overflow-wrap: break-word;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  max-width: 100%;
  padding: 0.7rem 1.2rem;
  border: 1px solid var(--fg);
  border-radius: 4px;
  background: var(--fg);
  color: var(--bg);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  overflow-wrap: break-word;
}

.button:hover {
  color: var(--bg);
  background: var(--fg-muted);
  border-color: var(--fg-muted);
  text-decoration: none;
}

.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  max-width: 100%;
  padding: 0.7rem 1.2rem;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: transparent;
  color: var(--fg);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  overflow-wrap: break-word;
}

.button-secondary:hover {
  border-color: var(--fg);
  background: var(--bg-elevated);
  color: var(--fg);
  text-decoration: none;
}

.text-link {
  font-weight: 600;
}

.prose {
  max-width: 46rem;
}

.prose p {
  color: var(--fg-muted);
}

.prose p strong, .prose li strong {
  color: var(--fg);
}

.detail-list {
  margin: var(--space-md) 0;
  border-top: var(--rule-width) solid var(--rule);
}

.detail-list dt {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  margin-top: var(--space-md);
}

.detail-list dd {
  margin: var(--space-xs) 0 0 0;
  color: var(--fg);
}

.callout {
  border: 1px solid var(--border-strong);
  border-left-width: 4px;
  border-radius: 4px;
  background: var(--bg-elevated);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
  color: var(--fg);
}

.callout p {
  margin: 0 0 var(--space-sm);
}

.callout p:last-child {
  margin-bottom: 0;
}

.callout strong {
  color: var(--fg);
}

/* Architecture flow blocks: horizontal on wide screens, stacked on narrow. */
.flow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 10rem), 1fr));
  gap: var(--space-sm);
  margin: var(--space-md) 0;
  padding: 0;
  list-style: none;
}

.flow-step {
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elevated);
  padding: var(--space-md);
  font-size: 0.9rem;
  min-width: 0;
}

.flow-step strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--fg-muted);
  margin-bottom: var(--space-xs);
  font-weight: 500;
}

/* Timeline for experience snapshots. */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: var(--rule-width) solid var(--rule);
}

.timeline-entry {
  display: grid;
  grid-template-columns: minmax(0, 11rem) minmax(0, 1fr);
  gap: var(--space-lg);
  padding-top: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: var(--rule-width) solid var(--rule);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--fg-muted);
  white-space: nowrap;
}

.timeline-body h3 {
  margin: 0 0 var(--space-xs);
  font-size: 1.05rem;
}

.timeline-body p {
  margin: 0 0 var(--space-sm);
  color: var(--fg-muted);
  font-size: 0.96rem;
}

/* CV page sections (secondary pages rely on this contract). */
.cv-section {
  margin-bottom: var(--space-xl);
}

.cv-section h2 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  border-bottom: var(--rule-width) solid var(--border);
  padding-bottom: var(--space-sm);
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
  font-weight: 500;
}

.print-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.7rem 1.2rem;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: transparent;
  color: var(--fg);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

/* ==========================================================================
   6. Home page composition
   ========================================================================== */

.hero {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: var(--rule-width) solid var(--rule);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: var(--space-2xl);
  align-items: center;
}

.hero-copy h1 {
  margin-top: 0;
}

/* Modest current-role line below the intro lead. */
.hero-role {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--fg-muted);
  max-width: 46rem;
  margin: var(--space-md) 0 0;
  padding-top: var(--space-md);
  border-top: var(--rule-width) solid var(--rule);
}

.hero-meta {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--fg-muted);
  margin: var(--space-lg) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.art-frame {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  padding: var(--space-md);
  min-width: 0;
}

.art-frame svg {
  display: block;
  width: 100%;
  height: auto;
  color: var(--fg);
}

.art-frame figcaption {
  margin-top: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--fg-muted);
  text-align: left;
}

.evidence-figure {
  margin: var(--space-md) 0;
  max-width: 40rem;
  min-width: 0;
}

.evidence-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.evidence-figure figcaption {
  margin-top: var(--space-sm);
  font-size: 0.85rem;
  color: var(--fg-muted);
}

.portrait-figure { max-width: 28rem; width: 100%; justify-self: center; }

.supporting-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: center;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
  gap: var(--space-md);
}

/* ponytail: uncropped previews and original links, not a carousel or PDF renderer. */
.evidence-figure:not(.portrait-figure) img {
  height: 14rem;
  object-fit: contain;
  background: var(--bg-elevated);
}

.evidence-figure a { display: block; border-radius: var(--radius); }
.publication-note { color: var(--fg-muted); }

#evidence-viewer {
  width: min(54rem, calc(100vw - 2rem));
  max-height: calc(100dvh - 2rem);
  overflow: auto;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: var(--space-md);
  background: var(--bg);
  color: var(--fg);
}

#evidence-viewer:not([open]) { display: none; }
#evidence-viewer::backdrop { background: rgb(0 0 0 / 65%); }
.viewer-controls { display: flex; justify-content: space-between; align-items: center; gap: var(--space-md); }
.viewer-controls h2 { margin: 0; font-size: 1.25rem; }
.viewer-controls button { flex-shrink: 0; }
.viewer-media { min-height: 4rem; margin: var(--space-md) 0; }
.viewer-media img { display: block; width: auto; height: auto; max-width: 100%; max-height: 65dvh; margin: auto; }

@media (max-width: 56rem) {
  .supporting-grid { grid-template-columns: minmax(0, 1fr); }
  .hero .portrait-figure { grid-row: 1; }
}

@media print {
  #evidence-viewer { display: none !important; }
}

.featured-card {
  border-width: 1px;
  padding: var(--space-xl);
  gap: var(--space-md);
}

.featured-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.skills-strip {
  display: grid;
  gap: var(--space-sm);
}

/* ==========================================================================
   7. Projects page composition
   ========================================================================== */

.project-case {
  padding: var(--space-xl);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.project-case h2 {
  margin: 0;
}

.project-meta {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--fg-muted);
  margin: 0;
}

.project-figure {
  margin: var(--space-md) 0 0;
}

.limitations {
  border-left-color: var(--fg);
}

/* ==========================================================================
   8. Responsive: collapse grids, keep 320px free of overflow
   ========================================================================== */

@media (max-width: 56rem) {
  .header-inner {
    flex-wrap: wrap;
  }

  .site-header .theme-toggle {
    order: 3;
  }

  .site-header nav {
    order: 4;
    flex: 1 1 100%;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-xl);
  }

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

  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-lg);
  }

  .timeline-entry {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-sm);
  }
}

@media (max-width: 26rem) {
  .container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .header-inner {
    align-items: stretch;
  }

  .nav-links li {
    min-width: 0;
    flex: 1 1 calc(50% - var(--space-sm));
  }

  .hero {
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
  }
}

/* ==========================================================================
   9. Motion preferences
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ==========================================================================
   10. Print: readable CV and project pages
   ========================================================================== */

@media print {
  :root, :root[data-theme], :root:not([data-theme]) {
    --bg: #ffffff;
    --bg-elevated: #ffffff;
    --bg-inset: #ffffff;
    --fg: #000000;
    --fg-muted: #222222;
    --fg-faint: #333333;
    --border: #666666;
    --border-strong: #000000;
    --rule: #999999;
    --code-bg: #ffffff;
    --focus: #000000;
    --card-bg: #ffffff;
    --mark-bg: #000000;
    --mark-fg: #ffffff;
    --nav-box-bg: #ffffff;
    --nav-box-fg: #000000;
    --nav-box-active-bg: #ffffff;
    --nav-box-active-fg: #000000;
    --nav-box-hover-bg: #ffffff;
    --nav-box-hover-fg: #000000;
  }

  .site-header,
  .site-footer,
  .print-button,
  .screen-only,
  .hero-actions,
  .theme-toggle {
    display: none !important;
  }

  .print-only {
    display: block;
  }

  /* The public CV prints as a document, not as a large website landing page. */
  .cv-page .page-intro {
    display: none;
  }

  .cv-page .print-only {
    margin-bottom: 1rem;
  }

  .cv-page .print-only h2 {
    font-size: 22pt;
    margin-bottom: 0.35rem;
  }

  .cv-page .cv-section {
    margin-bottom: 0.8rem;
    padding-top: 0;
    padding-bottom: 0.6rem;
  }

  .cv-page .section-heading {
    margin-bottom: 0.5rem;
  }

  .cv-page .detail-list {
    border: none;
    margin: 0.4rem 0;
    padding-left: 1.2rem;
  }

  .cv-page a[href^="http"]::after {
    content: none;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 11pt;
    line-height: 1.5;
  }

  .container {
    max-width: none;
    padding-left: 0;
    padding-right: 0;
  }

  .hero, .section, .page-intro {
    padding-top: 0;
    padding-bottom: 1rem;
    border-bottom: 1px solid #999;
  }

  .card, .callout, .flow-step, .art-frame {
    background: #fff !important;
    border: 1px solid #666 !important;
    break-inside: avoid;
  }

  .button, .button-secondary {
    background: #fff !important;
    color: #000 !important;
    border: 1px solid #000 !important;
  }

  .timeline-entry,
  .project-case,
  .cv-section {
    break-inside: avoid;
  }

  a {
    color: #000 !important;
    text-decoration: none !important;
  }

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.85em;
    color: #333;
    overflow-wrap: break-word;
  }

  code {
    background: none !important;
    border: 1px solid #999;
  }

  @page {
    margin: 2cm;
  }
}