:root,
[data-theme='light'] {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --color-bg: #f1eee6;
  --color-surface: #f7f4ec;
  --color-surface-2: #ebe7dc;
  --color-surface-offset: #e4dfd3;
  --color-divider: #d9d3c6;
  --color-border: #d4cec0;
  --color-text: #171512;
  --color-text-muted: #6b675f;
  --color-text-faint: #a39e94;
  --color-text-inverse: #f7f4ec;
  --color-primary: #9a3a16;
  --color-primary-hover: #7a2c10;
  --color-primary-active: #5c210c;
  --color-primary-highlight: #ead7cc;

  --radius-sm: 0.125rem;
  --radius-md: 0.25rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px oklch(0.22 0.03 55 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.22 0.03 55 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.22 0.03 55 / 0.12);

  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  --font-display: 'Cabinet Grotesk', 'Satoshi', sans-serif;
  --font-body: 'Satoshi', 'Helvetica Neue', sans-serif;
  --header-h: 4rem;
}

[data-theme='dark'] {
  --color-bg: #12110f;
  --color-surface: #1b1a17;
  --color-surface-2: #22201c;
  --color-surface-offset: #2a2722;
  --color-divider: #2e2b26;
  --color-border: #3a372f;
  --color-text: #e8e4da;
  --color-text-muted: #8e8a82;
  --color-text-faint: #5e5b55;
  --color-text-inverse: #171512;
  --color-primary: #e0915c;
  --color-primary-hover: #f0a574;
  --color-primary-active: #c97845;
  --color-primary-highlight: #3a2d26;
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.24);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.32);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #12110f;
    --color-surface: #1b1a17;
    --color-surface-2: #22201c;
    --color-surface-offset: #2a2722;
    --color-divider: #2e2b26;
    --color-border: #3a372f;
    --color-text: #e8e4da;
    --color-text-muted: #8e8a82;
    --color-text-faint: #5e5b55;
    --color-text-inverse: #171512;
    --color-primary: #e0915c;
    --color-primary-hover: #f0a574;
    --color-primary-active: #c97845;
    --color-primary-highlight: #3a2d26;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.24);
    --shadow-md: 0 4px 12px oklch(0 0 0 / 0.32);
    --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
  }
}

body {
  background-image:
    linear-gradient(oklch(from var(--color-text) l c h / 0.035) 1px, transparent 1px),
    linear-gradient(90deg, oklch(from var(--color-text) l c h / 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  background-attachment: fixed;
}

a {
  color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--color-primary-hover);
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: var(--space-4);
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

.wrap {
  width: min(100% - var(--space-8), var(--content-wide));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: var(--space-4);
  min-height: var(--header-h);
  padding-inline: var(--space-4);
  background: oklch(from var(--color-bg) l c h / 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition:
    transform 0.3s var(--ease-out),
    box-shadow 0.3s var(--ease-out),
    border-color 0.3s var(--ease-out);
}

.site-header.header--scrolled {
  border-bottom-color: oklch(from var(--color-text) l c h / 0.1);
  box-shadow: var(--shadow-sm);
}

.site-header.header--hidden {
  transform: translateY(-100%);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  min-height: 44px;
}

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

.brand-mark {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  color: var(--color-text);
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
}

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding-inline: var(--space-3);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-text);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.icon-btn:hover,
.icon-btn:active {
  background: oklch(from var(--color-text) l c h / 0.06);
}

.menu-toggle {
  display: none;
}

.hero {
  padding-block: clamp(var(--space-16), 12vw, var(--space-32)) clamp(var(--space-12), 8vw, var(--space-24));
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.1);
}

.index {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.92;
  max-width: none;
  margin-bottom: var(--space-8);
}

.lede {
  font-size: var(--text-lg);
  font-weight: 500;
  line-height: 1.35;
  max-width: 32ch;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  text-wrap: balance;
}

.hero-meta {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 var(--space-5);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
}

.btn:hover {
  background: var(--color-primary-hover);
  color: var(--color-text-inverse);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
  background: var(--color-primary-active);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 var(--space-5);
  background: transparent;
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid oklch(from var(--color-text) l c h / 0.18);
}

.btn-ghost:hover {
  border-color: var(--color-text);
  color: var(--color-text);
  transform: translateY(-1px);
}

.btn-ghost:active {
  transform: translateY(0);
}

.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.1);
  content-visibility: auto;
  contain-intrinsic-size: 800px;
}

.section--tight {
  padding-block: clamp(var(--space-10), 6vw, var(--space-20));
}

.section-head {
  display: grid;
  gap: var(--space-3);
  margin-bottom: clamp(var(--space-8), 5vw, var(--space-16));
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.section-head p:not(.index) {
  color: var(--color-text-muted);
  max-width: 46ch;
}

.case {
  display: grid;
  gap: var(--space-6);
  margin-bottom: clamp(var(--space-12), 7vw, var(--space-20));
  align-items: center;
}

.case:last-child {
  margin-bottom: 0;
}

.case figure {
  margin: 0;
  background: var(--color-surface-offset);
  overflow: hidden;
  border-radius: var(--radius-md);
}

.case img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--color-surface-offset);
}

.kicker {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.case h3,
.project h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.case p,
.project p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.stat {
  display: inline-block;
  margin-top: var(--space-2);
  padding: var(--space-4) 0 0;
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.12);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text);
  max-width: 28ch;
  line-height: 1.3;
}

.stat span {
  display: block;
  margin-top: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  margin-top: var(--space-4);
}

.tags li {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding: var(--space-1) var(--space-3);
  border: 1px solid oklch(from var(--color-text) l c h / 0.12);
  border-radius: var(--radius-full);
  max-width: none;
}

.project-grid {
  display: grid;
  gap: var(--space-8);
}

.project figure {
  margin: 0 0 var(--space-5);
  background: var(--color-surface-offset);
  overflow: hidden;
  border-radius: var(--radius-md);
}

.project img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--color-surface-offset);
}

.img-fallback {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--color-surface-offset);
}

.timeline {
  display: grid;
  gap: 0;
}

.job {
  display: grid;
  gap: var(--space-2);
  padding-block: var(--space-8);
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.1);
}

.job:last-child {
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.1);
}

.job-when {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.job h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.job-role {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}

.job ul {
  display: grid;
  gap: var(--space-3);
  padding-left: var(--space-5);
  color: var(--color-text-muted);
}

.about-grid {
  display: grid;
  gap: var(--space-12);
}

.about-copy p {
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

.about-copy p:first-of-type {
  color: var(--color-text);
  font-size: var(--text-lg);
  font-weight: 500;
  line-height: 1.4;
  max-width: 36ch;
}

.edu {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.1);
}

.edu h3 {
  font-size: var(--text-sm);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.edu p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.skill-block {
  display: grid;
  gap: var(--space-8);
}

.skill-block h3 {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.skill-block p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 40ch;
}

.contact {
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
}

.contact-mail {
  display: inline-block;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text);
  text-decoration: none;
  margin-bottom: var(--space-8);
  max-width: none;
}

.contact-mail:hover {
  color: var(--color-primary);
}

.contact-list {
  display: grid;
  gap: var(--space-3);
  list-style: none;
}

.contact-list a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.contact-list a:hover {
  color: var(--color-text);
}

.site-footer {
  padding: var(--space-8) 0 var(--space-12);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: space-between;
  color: var(--color-text-faint);
  font-size: var(--text-xs);
}

.fade-in {
  opacity: 1;
}

@supports (animation-timeline: view()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 80%;
  }
}

@keyframes reveal-fade {
  to {
    opacity: 1;
  }
}

@media (min-width: 768px) {
  .site-header {
    padding-inline: var(--space-8);
  }

  .wrap {
    width: min(100% - var(--space-16), var(--content-wide));
  }

  .case {
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--space-10);
  }

  .case--reverse {
    grid-template-columns: 0.85fr 1.15fr;
  }

  .case--reverse figure {
    order: 2;
  }

  .project-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }

  .job {
    grid-template-columns: 11rem 1fr;
    gap: var(--space-8);
    align-items: start;
  }

  .about-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-16);
  }
}

@media (max-width: 767px) {
  .brand-name {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin: 0;
    padding: var(--space-4);
    flex-direction: column;
    align-items: stretch;
    background: var(--color-bg);
    border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.1);
  }

  .site-header.is-open .site-nav {
    display: flex;
  }

  .site-nav a {
    min-height: 48px;
  }

  .lede {
    max-width: 28ch;
  }

  .hero h1 {
    font-size: var(--text-3xl);
  }
}