:root {
  --background: #f1f0eb;
  --paper: #faf9f5;
  --ink: #101a29;
  --muted: #69716f;
  --line: #c9cbc5;
  --accent: #b9442c;
  --link: #24547a;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: Georgia, "Times New Roman", serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  color-scheme: light;
  font-family: var(--sans);
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--background); color: var(--ink); }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--link); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 100; inset: 1rem auto auto 1rem; padding: 0.75rem 1rem; background: var(--ink); color: var(--paper); transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }

.site-header {
  min-height: 5.5rem;
  display: grid;
  grid-template-columns: 0.3fr 1fr auto;
  align-items: center;
  gap: 2rem;
  padding-inline: clamp(1.25rem, 4vw, 4.5rem);
  border-block-end: 1px solid var(--ink);
}
.site-header a { text-decoration: none; }
.logo { font: 700 1rem/1 var(--mono); }
.site-header nav { display: flex; justify-content: center; gap: 2rem; }
.site-header nav a { font-size: 0.78rem; }
.talk-link { min-height: 2.7rem; display: inline-flex; align-items: center; padding-inline: 1rem; border: 1px solid var(--ink); font-size: 0.75rem; }

.hero {
  min-height: min(48rem, calc(100vh - 5.5rem));
  display: grid;
  grid-template-columns: 0.25fr 1fr 0.28fr;
  gap: clamp(2rem, 5vw, 6rem);
  padding: clamp(4rem, 8vw, 8rem) clamp(1.25rem, 4vw, 4.5rem);
  border-block-end: 1px solid var(--ink);
}
.hero aside { padding-block-start: 0.5rem; border-block-start: 5px solid var(--accent); }
.hero aside span,
.margin-note span,
.kicker,
.section-heading > span,
.closing > span { color: var(--accent); font: 0.65rem/1.4 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; }
.hero aside p { margin: 0.65rem 0; color: var(--muted); font-size: 0.72rem; }
.hero-main { align-self: center; }
.kicker { margin: 0 0 1.5rem; color: var(--link); }
.hero h1 { max-width: 60rem; margin: 0; font: 400 clamp(4.2rem, 9.5vw, 10.5rem)/0.78 var(--serif); letter-spacing: -0.07em; }
.hero h1 em { display: block; margin-inline-start: 12%; color: var(--accent); font-weight: 400; }
.deck { max-width: 43rem; margin: 3rem 0 0 auto; font-size: clamp(1.1rem, 1.7vw, 1.35rem); line-height: 1.55; }
.hero-actions { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 1.5rem; margin-block-start: 2rem; }
.hero-actions a { font-size: 0.78rem; text-underline-offset: 0.3rem; }
.hero-actions a:first-child { color: var(--accent); font-weight: 700; }
.margin-note { align-self: end; padding: 1.25rem 0; border-block: 1px solid var(--line); }
.margin-note p { margin-block-end: 0; color: var(--muted); font: italic 0.95rem/1.5 var(--serif); }

.scorecard { display: grid; grid-template-columns: repeat(6, 1fr); background: var(--ink); color: var(--paper); }
.scorecard div { min-height: 10rem; padding: 1.5rem; border-inline-end: 1px solid rgb(255 255 255 / 18%); }
.scorecard strong { display: block; font: 400 clamp(1.7rem, 3vw, 3.2rem)/1 var(--serif); letter-spacing: -0.04em; }
.scorecard span { display: block; margin-block-start: 1rem; color: #aeb9bd; font-size: 0.68rem; line-height: 1.4; }

.section { position: relative; display: grid; grid-template-columns: 0.18fr 0.55fr 1fr; gap: clamp(2rem, 5vw, 6rem); padding: clamp(5rem, 10vw, 10rem) clamp(1.25rem, 4vw, 4.5rem); border-block-end: 1px solid var(--ink); }
.section-number { color: var(--accent); font: 0.68rem/1 var(--mono); }
.section-heading h2 { margin: 1rem 0 0; font: 400 clamp(2.8rem, 5vw, 5.7rem)/0.95 var(--serif); letter-spacing: -0.055em; }
.section-heading > p { max-width: 29rem; color: var(--muted); line-height: 1.65; }

.capabilities article { display: grid; grid-template-columns: 0.5fr 1fr; gap: 2rem; padding-block: 2rem; border-block-start: 1px solid var(--line); }
.capabilities h3 { margin: 0; font: 400 1.6rem/1.1 var(--serif); }
.capabilities > article > p { margin: 0; line-height: 1.65; }
.capabilities details { grid-column: 2; color: var(--muted); font-size: 0.76rem; }
.capabilities summary { cursor: pointer; color: var(--link); font-family: var(--mono); text-transform: uppercase; }
.capabilities details p { line-height: 1.55; }

.projects { grid-template-columns: 0.18fr 0.55fr; }
.case-studies { grid-column: 1 / -1; margin-block-start: 3rem; }
.case-studies article { display: grid; grid-template-columns: 0.18fr 0.55fr 1fr; gap: clamp(2rem, 5vw, 6rem); padding-block: 3rem; border-block-start: 1px solid var(--ink); }
.case-label span { color: var(--accent); font: 0.68rem/1 var(--mono); }
.case-label p { margin-block-start: 1.5rem; color: var(--muted); font: 0.64rem/1.4 var(--mono); text-transform: uppercase; }
.case-title h3 { margin: 0 0 1rem; font: 400 clamp(2rem, 4vw, 4.4rem)/1 var(--serif); letter-spacing: -0.05em; }
.case-title strong { color: var(--accent); font-size: 0.78rem; }
.case-copy > p { margin-block-start: 0; font-size: 1rem; line-height: 1.65; }
.case-copy ul { padding-inline-start: 1.1rem; color: var(--muted); font-size: 0.82rem; line-height: 1.6; }

.resume { grid-template-columns: 0.18fr 0.55fr 1fr; }
.history article { display: grid; grid-template-columns: 0.3fr 1fr; gap: 1rem; padding-block: 1.35rem; border-block-start: 1px solid var(--line); }
.history time { color: var(--accent); font: 0.62rem/1 var(--mono); }
.history h3 { margin: 0; font: 400 1.1rem/1.25 var(--serif); }
.history p { margin: 0.3rem 0 0; color: var(--muted); font-size: 0.8rem; }
.history ul { margin: 1rem 0 0; padding-inline-start: 1rem; color: var(--muted); font-size: 0.76rem; line-height: 1.6; }
.history li + li { margin-block-start: 0.45rem; }
.qualification-grid { grid-column: 2 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-block-start: 4rem; background: var(--line); border: 1px solid var(--line); }
.qualification-grid article { padding: 1.5rem; background: var(--paper); }
.qualification-grid span { color: var(--link); font: 0.62rem/1 var(--mono); text-transform: uppercase; }
.qualification-grid p { color: var(--muted); font-size: 0.78rem; line-height: 1.55; }

.closing { padding: clamp(6rem, 12vw, 12rem) clamp(1.25rem, 8vw, 9rem); background: var(--accent); color: #fff8f1; }
.closing > span { color: #ffd2c5; }
.closing h2 { max-width: 70rem; margin: 1rem 0 3rem; font: 400 clamp(3.3rem, 7.6vw, 8rem)/0.9 var(--serif); letter-spacing: -0.065em; }
.closing > div { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; max-width: 60rem; margin-inline-start: auto; color: #ffe4da; line-height: 1.65; }
.closing > a { min-height: 5rem; display: flex; justify-content: space-between; align-items: center; max-width: 60rem; margin: 3rem 0 0 auto; padding-inline: 1.5rem; border: 1px solid #ffd2c5; font-size: 1.25rem; text-decoration: none; }
.site-footer { display: flex; justify-content: space-between; gap: 2rem; padding: 2rem clamp(1.25rem, 4vw, 4.5rem) 6rem; background: var(--ink); color: #aeb9bd; font: 0.62rem/1.4 var(--mono); }

@media (max-width: 900px) {
  .hero { grid-template-columns: 0.25fr 1fr; }
  .margin-note { display: none; }
  .scorecard { grid-template-columns: repeat(3, 1fr); }
  .section { grid-template-columns: 0.15fr 1fr; }
  .section-heading, .capabilities, .history { grid-column: 2; }
  .case-studies { grid-column: 1 / -1; }
  .case-studies article { grid-template-columns: 0.15fr 0.85fr; }
  .case-copy { grid-column: 2; }
  .qualification-grid { grid-column: 2; }
}

@media (max-width: 640px) {
  .site-header { grid-template-columns: auto 1fr; gap: 1rem; padding-block: 1rem; }
  .site-header nav { grid-column: 1 / -1; grid-row: 2; justify-content: flex-start; gap: 1.5rem; order: 3; }
  .talk-link { justify-self: end; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero aside { display: none; }
  .hero h1 { font-size: clamp(3.5rem, 18vw, 6rem); }
  .deck { margin-inline: 0; }
  .hero-actions { justify-content: flex-start; }
  .scorecard { grid-template-columns: repeat(2, 1fr); }
  .section { grid-template-columns: 1fr; }
  .section-number, .section-heading, .capabilities, .history { grid-column: 1; }
  .capabilities article, .case-studies article { grid-template-columns: 1fr; }
  .capabilities details, .case-copy { grid-column: 1; }
  .qualification-grid { grid-column: 1; grid-template-columns: 1fr; }
  .closing > div { grid-template-columns: 1fr; }
  .site-footer { display: grid; }
}

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