:root, [data-theme="light"] {
  --font-display: "Boska", Georgia, serif;
  --font-body: "Satoshi", "Helvetica Neue", sans-serif;
  --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-hero: clamp(3.6rem, 1.4rem + 7.4vw, 8.4rem);
  --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: #f2eee6;
  --color-surface: #faf7f0;
  --color-surface-2: #e8e1d6;
  --color-text: #201f1c;
  --color-text-muted: #6d685f;
  --color-text-faint: #979087;
  --color-border: #cfc6b9;
  --color-primary: #bd3d24;
  --color-primary-hover: #8e2917;
  --color-signal: #317a55;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --content-wide: 1200px;
}

[data-theme="dark"] {
  --color-bg: #191815;
  --color-surface: #22211d;
  --color-surface-2: #2b2924;
  --color-text: #e9e3d9;
  --color-text-muted: #aaa297;
  --color-text-faint: #777067;
  --color-border: #423e38;
  --color-primary: #ef775e;
  --color-primary-hover: #ff9a84;
  --color-signal: #70b58e;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #191815;
    --color-surface: #22211d;
    --color-surface-2: #2b2924;
    --color-text: #e9e3d9;
    --color-text-muted: #aaa297;
    --color-text-faint: #777067;
    --color-border: #423e38;
    --color-primary: #ef775e;
    --color-primary-hover: #ff9a84;
    --color-signal: #70b58e;
  }
}

.skip-link { position: fixed; top: var(--space-3); left: var(--space-3); z-index: 100; padding: var(--space-3) var(--space-4); background: var(--color-text); color: var(--color-bg); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.site-header, main, footer { width: min(calc(100% - var(--space-8)), var(--content-wide)); margin-inline: auto; }
.site-header { min-height: 76px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid color-mix(in oklab, var(--color-text) 14%, transparent); position: sticky; top: 0; z-index: 20; background: color-mix(in oklab, var(--color-bg) 92%, transparent); backdrop-filter: blur(14px); }
.identity { display: inline-flex; align-items: center; gap: var(--space-3); text-decoration: none; font-weight: 700; font-size: var(--text-sm); }
.mark { width: 34px; height: 34px; }
.site-header nav { display: flex; align-items: center; gap: var(--space-6); }
.site-header nav a { font-size: var(--text-sm); color: var(--color-text-muted); text-decoration: none; }
.site-header nav a:hover { color: var(--color-primary); }
.theme-toggle { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid color-mix(in oklab, var(--color-text) 16%, transparent); border-radius: var(--radius-full); }
.theme-toggle:hover { color: var(--color-primary); border-color: var(--color-primary); transform: rotate(-8deg); }

.hero { min-height: min(820px, calc(100dvh - 76px)); padding-block: clamp(var(--space-16), 9vw, var(--space-24)); display: grid; grid-template-rows: auto 1fr auto; align-items: center; }
.hero-kicker, .eyebrow, .project-number { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.12em; font-weight: 700; color: var(--color-text-muted); }
.hero-kicker { display: flex; align-items: center; gap: var(--space-3); }
.signal { width: 8px; height: 8px; border-radius: var(--radius-full); background: var(--color-signal); box-shadow: 0 0 0 5px color-mix(in oklab, var(--color-signal) 14%, transparent); }
.hero h1 { max-width: 9.8ch; font-family: var(--font-display); font-size: var(--text-hero); font-weight: 500; letter-spacing: -0.045em; }
.hero h1 em { color: var(--color-primary); font-weight: 400; }
.hero-foot { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: var(--space-12); border-top: 1px solid color-mix(in oklab, var(--color-text) 14%, transparent); padding-top: var(--space-6); }
.hero-foot p { max-width: 58ch; color: var(--color-text-muted); }
.primary-link { color: var(--color-primary); font-weight: 700; text-underline-offset: 6px; }

.proof-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid color-mix(in oklab, var(--color-text) 14%, transparent); }
.proof-strip p { min-height: 132px; padding: var(--space-6); display: flex; flex-direction: column; justify-content: space-between; border-right: 1px solid color-mix(in oklab, var(--color-text) 14%, transparent); }
.proof-strip p:first-child { padding-left: 0; }
.proof-strip p:last-child { border-right: 0; padding-right: 0; }
.proof-strip strong { font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 500; line-height: 1; }
.proof-strip span { font-size: var(--text-xs); color: var(--color-text-muted); max-width: 20ch; }
.proof-date strong { font-family: var(--font-body); font-size: var(--text-sm); letter-spacing: 0.04em; }

.work { padding-block: clamp(var(--space-24), 12vw, var(--space-32)); }
.section-heading { display: grid; grid-template-columns: 1fr 2fr; gap: var(--space-12); margin-bottom: var(--space-24); }
.section-heading h2, .method h2, .contact h2 { font-family: var(--font-display); font-weight: 500; font-size: var(--text-2xl); letter-spacing: -0.025em; }
.project { display: grid; grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr); gap: clamp(var(--space-8), 6vw, var(--space-20)); align-items: center; padding-block: clamp(var(--space-16), 8vw, var(--space-24)); border-top: 1px solid color-mix(in oklab, var(--color-text) 14%, transparent); }
.project-reverse .project-copy { order: 2; }
.project-reverse .project-visual { order: 1; }
.project h3 { margin-block: var(--space-4) var(--space-6); font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 500; letter-spacing: -0.035em; }
.project-lead { color: var(--color-text-muted); margin-bottom: var(--space-8); }
.project-evidence { display: grid; gap: var(--space-3); margin-bottom: var(--space-8); }
.project-evidence li { position: relative; padding-left: var(--space-5); font-size: var(--text-sm); }
.project-evidence li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 5px; height: 5px; border-radius: var(--radius-full); background: var(--color-primary); }
.project-links { display: flex; flex-wrap: wrap; gap: var(--space-6); }
.project-links a { font-size: var(--text-sm); font-weight: 700; text-underline-offset: 6px; }
.project-links a:hover { color: var(--color-primary); }
.project-visual { display: block; overflow: hidden; border: 1px solid color-mix(in oklab, var(--color-text) 14%, transparent); background: var(--color-surface); text-decoration: none; }
.project-visual img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; filter: saturate(0.78) contrast(0.98); transition: transform 520ms cubic-bezier(0.16, 1, 0.3, 1), filter 300ms ease; }
.project-visual:hover img { transform: scale(1.018); filter: saturate(1) contrast(1); }
.project-compact { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); }

.utilities { padding-block: clamp(var(--space-16), 8vw, var(--space-24)); border-top: 1px solid color-mix(in oklab, var(--color-text) 14%, transparent); }
.utilities-heading { margin-bottom: var(--space-16); }
.utilities-heading > div { display: grid; gap: var(--space-5); }
.utilities-heading > div > p { color: var(--color-text-muted); max-width: 64ch; }
.utility-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr); gap: var(--space-6); align-items: stretch; }
.utility-card { display: grid; grid-template-rows: 1fr auto; gap: var(--space-8); padding: clamp(var(--space-6), 4vw, var(--space-10)); background: var(--color-surface); border: 1px solid color-mix(in oklab, var(--color-text) 12%, transparent); }
.utility-card-wide { background: color-mix(in oklab, var(--color-surface) 90%, var(--color-primary) 10%); }
.utility-card-full { grid-column: 1 / -1; grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr); grid-template-rows: 1fr; background: color-mix(in oklab, var(--color-surface) 92%, #7fd0a4 8%); }
.utility-copy { display: flex; flex-direction: column; align-items: flex-start; }
.utility-copy h3 { margin-block: var(--space-4) var(--space-5); font-family: var(--font-display); font-size: var(--text-xl); font-weight: 500; letter-spacing: -0.025em; }
.utility-copy > p:not(.project-number) { color: var(--color-text-muted); }
.utility-copy > a { margin-top: auto; padding-top: var(--space-8); font-size: var(--text-sm); font-weight: 700; text-underline-offset: 6px; }
.utility-copy > a:hover { color: var(--color-primary); }
.utility-facts { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-6); }
.utility-facts li { padding: var(--space-2) var(--space-3); border: 1px solid color-mix(in oklab, var(--color-text) 13%, transparent); border-radius: var(--radius-full); color: var(--color-text-muted); font-size: var(--text-xs); }
.terminal-proof { min-height: 252px; padding: var(--space-6); overflow-x: auto; background: #151819; color: #dce4dc; border-radius: var(--radius-sm); font: 500 var(--text-sm)/1.65 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
.terminal-proof span { color: #7fd0a4; }
.terminal-proof-light { background: #20201e; color: #eee7dd; }
.terminal-proof-security { min-height: 100%; }

.method { display: grid; grid-template-columns: 0.88fr 1.12fr; gap: clamp(var(--space-12), 8vw, var(--space-24)); padding-block: clamp(var(--space-20), 10vw, var(--space-32)); border-block: 1px solid color-mix(in oklab, var(--color-text) 14%, transparent); }
.method-intro { position: sticky; top: 120px; align-self: start; }
.method-intro h2 { margin-top: var(--space-4); max-width: 10ch; }
.method-list { list-style: none; }
.method-list li { display: grid; grid-template-columns: 48px 1fr; gap: var(--space-6); padding-block: var(--space-8); border-bottom: 1px solid color-mix(in oklab, var(--color-text) 14%, transparent); }
.method-list li:first-child { padding-top: 0; }
.method-list li > span { font-family: var(--font-display); color: var(--color-primary); font-size: var(--text-lg); }
.method-list h3 { font-size: var(--text-lg); margin-bottom: var(--space-3); }
.method-list p { color: var(--color-text-muted); }

.contact { padding-block: clamp(var(--space-24), 12vw, calc(var(--space-32) * 1.25)); }
.contact h2 { max-width: 18ch; margin-block: var(--space-6); font-size: clamp(2.5rem, 1.2rem + 4vw, 5rem); }
.contact > p:not(.eyebrow) { color: var(--color-text-muted); max-width: 58ch; }
.contact-links { display: flex; align-items: center; gap: var(--space-8); margin-top: var(--space-10); }
.contact-links a { font-weight: 700; text-underline-offset: 6px; }
.contact-primary { display: inline-flex; min-height: 52px; align-items: center; padding-inline: var(--space-6); background: var(--color-primary); color: #fff8f1; text-decoration: none; }
.contact-primary:hover { background: var(--color-primary-hover); transform: translateY(-2px); }

footer { min-height: 96px; display: flex; justify-content: space-between; align-items: center; border-top: 1px solid color-mix(in oklab, var(--color-text) 14%, transparent); font-size: var(--text-xs); color: var(--color-text-muted); }

@media (max-width: 760px) {
  .site-header, main, footer { width: min(calc(100% - var(--space-6)), var(--content-wide)); }
  .site-header { min-height: 68px; }
  .site-header nav { gap: var(--space-3); }
  .site-header nav a { display: none; }
  .hero { min-height: calc(100dvh - 68px); padding-block: var(--space-12); }
  .hero h1 { max-width: 8.2ch; }
  .hero-foot, .section-heading, .project, .project-compact, .method { grid-template-columns: 1fr; }
  .hero-foot { align-items: start; gap: var(--space-6); }
  .proof-strip { grid-template-columns: 1fr 1fr; }
  .proof-strip p { min-height: 112px; padding: var(--space-4); border-bottom: 1px solid color-mix(in oklab, var(--color-text) 14%, transparent); }
  .proof-strip p:nth-child(2) { border-right: 0; }
  .proof-strip p:nth-child(3) { padding-left: 0; border-bottom: 0; }
  .proof-strip p:nth-child(4) { border-bottom: 0; }
  .section-heading { gap: var(--space-6); margin-bottom: var(--space-12); }
  .project { gap: var(--space-10); }
  .project-reverse .project-copy, .project-reverse .project-visual { order: initial; }
  .project-copy { order: 1; }
  .project-visual { order: 2; }
  .utilities { padding-block: var(--space-16); }
  .utility-grid { grid-template-columns: 1fr; }
  .utility-card-full { grid-column: auto; grid-template-columns: 1fr; grid-template-rows: 1fr auto; }
  .terminal-proof { min-height: 224px; }
  .method { gap: var(--space-16); }
  .method-intro { position: static; }
  .contact-links { align-items: flex-start; flex-direction: column; gap: var(--space-6); }
  footer { align-items: flex-start; flex-direction: column; justify-content: center; gap: var(--space-2); }
}