:root {
  color-scheme: light;
  --paper: oklch(96% 0.011 92);
  --paper-2: oklch(93% 0.014 92);
  --ink: oklch(24% 0.02 170);
  --ink-deep: oklch(18% 0.018 170);
  --muted: oklch(42% 0.018 160);
  --faint: oklch(55% 0.015 140);
  --rule: oklch(24% 0.02 170 / 0.18);
  --rule-strong: oklch(24% 0.02 170 / 0.55);
  --green: oklch(42% 0.085 168);
  --amber: oklch(58% 0.12 70);
  --paper-on-ink: oklch(94% 0.012 92);
  --muted-on-ink: oklch(74% 0.02 130);
  --display: "Fraunces", Georgia, serif;
  --body: "Archivo", system-ui, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "Segoe UI Mono", Consolas, monospace;
  --max: 1200px;
  --pad: clamp(1.1rem, 3vw, 3rem);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1rem;
  line-height: 1.62;
}

h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 480;
  letter-spacing: -0.01em;
  margin: 0;
}

h1 em,
h2 em {
  font-style: italic;
  font-weight: 420;
  color: var(--green);
}

p {
  margin-block-start: 0;
  color: var(--muted);
}

a {
  color: inherit;
}

.mono {
  font-family: var(--mono);
  font-size: 0.78em;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.skip-link {
  position: fixed;
  inset-block-start: 1rem;
  inset-inline-start: 1rem;
  z-index: 30;
  padding: 0.7rem 0.9rem;
  background: var(--ink);
  color: var(--paper-on-ink);
  transform: translateY(-160%);
}

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

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem var(--pad);
  background: oklch(96% 0.011 92 / 0.88);
  border-block-end: 1px solid var(--rule);
  backdrop-filter: blur(12px);
}

.wordmark {
  font-family: var(--display);
  font-style: italic;
  font-size: 1.25rem;
  text-decoration: none;
}

.site-nav {
  display: flex;
  gap: clamp(0.9rem, 2.4vw, 1.9rem);
  font-size: 0.9rem;
}

.site-nav a,
.cv-link {
  text-decoration: none;
  color: var(--muted);
}

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

.cv-link {
  justify-self: end;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  color: var(--ink);
  font-size: 0.88rem;
}

.cv-link:hover,
.cv-link:focus-visible {
  background: var(--ink);
  color: var(--paper-on-ink);
}

/* ---------- masthead ---------- */

.masthead {
  width: min(var(--max), 100%);
  margin-inline: auto;
  padding: clamp(3.5rem, 9vh, 7rem) var(--pad) clamp(2.5rem, 6vh, 4.5rem);
}

.masthead-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2.2rem;
  margin: 0 0 clamp(1.5rem, 4vh, 3rem);
  padding-block-end: 0.9rem;
  border-block-end: 1px solid var(--rule);
  color: var(--faint);
}

.masthead h1 {
  font-size: clamp(3.6rem, 12.5vw, 10rem);
  line-height: 0.92;
  letter-spacing: -0.025em;
}

.masthead-foot {
  display: grid;
  grid-template-columns: minmax(300px, 1.15fr) minmax(260px, 0.85fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: end;
  margin-block-start: clamp(2rem, 5vh, 3.5rem);
}

.masthead-statement {
  max-width: 54ch;
  margin: 0;
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--ink);
}

.masthead-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.7rem;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 2.85rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  border: 1px solid var(--rule-strong);
  font-weight: 500;
  text-decoration: none;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.button.solid {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper-on-ink);
}

.button.solid:hover,
.button.solid:focus-visible {
  background: var(--green);
  border-color: var(--green);
}

.button.outline:hover,
.button.outline:focus-visible {
  border-color: var(--green);
  color: var(--green);
}

/* ---------- fact strip ---------- */

.fact-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--rule-strong);
  background: var(--paper-2);
}

.fact-strip > div {
  padding: clamp(1.1rem, 2.4vw, 1.9rem) var(--pad);
  border-inline-end: 1px solid var(--rule);
}

.fact-strip > div:last-child {
  border-inline-end: 0;
}

.fact-strip strong {
  display: block;
  margin-block-end: 0.3rem;
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  font-weight: 600;
  letter-spacing: 0;
  color: var(--green);
}

.fact-strip span {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.4;
  display: block;
  max-width: 22ch;
}

/* ---------- sections ---------- */

.section {
  width: min(var(--max), 100%);
  margin-inline: auto;
  padding: clamp(3.5rem, 8vw, 6.5rem) var(--pad) 0;
}

.section:last-of-type {
  padding-block-end: clamp(3.5rem, 8vw, 6.5rem);
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-block-end: clamp(1.6rem, 4vw, 2.8rem);
  padding-block-end: 0.7rem;
  border-block-end: 1px solid var(--rule-strong);
}

.section-no {
  color: var(--amber);
  font-weight: 600;
}

.section-label {
  color: var(--faint);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h2 {
  font-size: clamp(2rem, 4.6vw, 3.7rem);
  line-height: 1.04;
  margin-block-end: clamp(1.4rem, 3vw, 2.4rem);
}

h3 {
  font-size: clamp(1.15rem, 1.7vw, 1.45rem);
  line-height: 1.2;
  margin-block-end: 0.45rem;
}

/* ---------- profile ---------- */

.profile-grid {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(300px, 1.05fr);
  gap: clamp(1.8rem, 5vw, 4.5rem);
  align-items: start;
}

.profile-copy p {
  max-width: 62ch;
  font-size: clamp(1rem, 1.35vw, 1.16rem);
}

/* ---------- flagship work ---------- */

.work-featured {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule-strong);
  border: 1px solid var(--rule-strong);
}

.work-card {
  padding: clamp(1.4rem, 3vw, 2.4rem);
  background: var(--paper);
  transition: background 220ms ease;
}

.work-card:hover {
  background: var(--paper-2);
}

.work-tag {
  display: inline-block;
  margin-block-end: 1rem;
  color: var(--green);
  font-weight: 600;
}

.work-card h3 {
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
}

.work-card p:last-child,
.work-secondary p:last-child {
  margin: 0;
}

.work-secondary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.2rem, 3vw, 2.4rem);
  margin-block-start: clamp(1.4rem, 3vw, 2.4rem);
}

.work-secondary article {
  padding-block-start: 0.9rem;
  border-block-start: 2px solid var(--ink);
}

.work-secondary h3 {
  font-family: var(--body);
  font-weight: 600;
  font-size: 1.02rem;
}

.work-secondary p {
  font-size: 0.95rem;
}

/* ---------- experience ladder ---------- */

.experience-intro {
  display: grid;
  grid-template-columns: minmax(280px, 1.2fr) minmax(240px, 0.8fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: end;
}

.experience-intro p {
  max-width: 40ch;
}

.ladder {
  list-style: none;
  margin: clamp(1.5rem, 3vw, 2.5rem) 0 0;
  padding: 0;
}

.ladder-item {
  position: relative;
  display: grid;
  grid-template-columns: 15rem 1fr;
  gap: clamp(1rem, 4vw, 3.5rem);
  padding-block: clamp(1.3rem, 2.6vw, 1.9rem);
  padding-inline-start: 1.6rem;
  border-block-start: 1px solid var(--rule);
}

.ladder-item::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block: 0;
  width: 1px;
  background: var(--rule-strong);
}

.ladder-item::after {
  content: "";
  position: absolute;
  inset-inline-start: -4px;
  top: clamp(1.85rem, 3vw, 2.45rem);
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--ink);
}

.ladder-item.is-current::after {
  background: var(--green);
  border-color: var(--green);
}

.ladder-item.is-current .ladder-when {
  color: var(--green);
  font-weight: 700;
}

.ladder-when {
  color: var(--faint);
  font-weight: 600;
  padding-block-start: 0.35rem;
}

.concurrent {
  display: inline-block;
  margin-inline-start: 0.5rem;
  padding: 0.1rem 0.45rem;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  color: var(--amber);
  font-size: 0.85em;
}

.ladder-org {
  margin-block-end: 0.5rem;
  color: var(--green);
  font-weight: 600;
  font-size: 0.95rem;
}

.ladder-what p:last-child {
  max-width: 74ch;
  margin: 0;
  font-size: 0.97rem;
}

/* ---------- capabilities ---------- */

.capability-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 clamp(2rem, 5vw, 4.5rem);
  margin: 0;
}

.capability {
  padding-block: 1.15rem;
  border-block-start: 1px solid var(--rule);
}

.capability dt {
  margin-block-end: 0.35rem;
  font-weight: 600;
}

.capability dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ---------- education ---------- */

.education-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(300px, 1.1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.degree {
  padding-block: 1.1rem;
  border-block-start: 2px solid var(--ink);
}

.degree h3 {
  margin-block-end: 0.4rem;
}

.degree p {
  margin: 0;
  color: var(--faint);
}

.cert-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.cert-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.7rem;
  border-block-start: 1px solid var(--rule);
  font-size: 0.95rem;
}

.cert-list li span:last-child {
  color: var(--faint);
  text-align: end;
  flex-shrink: 0;
}

/* ---------- contact ---------- */

.contact {
  margin-block-start: clamp(3.5rem, 8vw, 6.5rem);
  padding: clamp(3rem, 7vw, 5.5rem) var(--pad) clamp(2.5rem, 5vw, 4rem);
  background: var(--ink-deep);
  color: var(--paper-on-ink);
}

.contact-inner {
  width: min(var(--max), 100%);
  margin-inline: auto;
}

.contact .section-head {
  border-color: oklch(94% 0.012 92 / 0.3);
}

.contact h2 {
  font-size: clamp(2.4rem, 6vw, 5rem);
}

.contact h2 em {
  color: oklch(78% 0.09 168);
}

.contact-lede {
  max-width: 52ch;
  color: var(--muted-on-ink);
  margin-block-end: clamp(2rem, 4vw, 3rem);
}

.contact-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: oklch(94% 0.012 92 / 0.22);
  border: 1px solid oklch(94% 0.012 92 / 0.22);
}

.contact-links a {
  display: block;
  padding: 1.1rem 1.2rem;
  background: var(--ink-deep);
  color: var(--paper-on-ink);
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: background 180ms ease;
}

.contact-links a:hover,
.contact-links a:focus-visible {
  background: oklch(26% 0.045 168);
}

.contact-links .mono {
  display: block;
  margin-block-end: 0.4rem;
  color: oklch(78% 0.09 168);
}

/* ---------- footer ---------- */

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  padding: 1.4rem var(--pad);
  background: var(--ink-deep);
  border-block-start: 1px solid oklch(94% 0.012 92 / 0.18);
  color: var(--muted-on-ink);
  font-size: 0.88rem;
}

.site-footer a {
  color: var(--paper-on-ink);
}

/* ---------- motion ---------- */

.load-seq {
  opacity: 0;
  transform: translateY(22px);
  animation: rise 800ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.load-seq:nth-child(2) {
  animation-delay: 120ms;
}

.load-seq:nth-child(3) {
  animation-delay: 240ms;
}

@keyframes rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* scoped to html.js so content stays visible when JavaScript is off or fails to load */
.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 650ms cubic-bezier(0.16, 1, 0.3, 1), transform 650ms cubic-bezier(0.16, 1, 0.3, 1);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- responsive ---------- */

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: 1fr auto;
    padding-block-end: 0;
  }

  .wordmark {
    grid-row: 1;
    grid-column: 1;
  }

  .cv-link {
    grid-row: 1;
    grid-column: 2;
  }

  /* nav drops to its own row and scrolls sideways instead of disappearing */
  .site-nav {
    grid-row: 2;
    grid-column: 1 / -1;
    margin-inline: calc(var(--pad) * -1);
    padding: 0.55rem var(--pad) 0.7rem;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .cv-link {
    justify-self: end;
  }

  .masthead-foot,
  .profile-grid,
  .experience-intro,
  .education-grid {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .masthead-actions {
    justify-content: flex-start;
  }

  .fact-strip,
  .work-featured {
    grid-template-columns: repeat(2, 1fr);
  }

  .fact-strip > div:nth-child(2) {
    border-inline-end: 0;
  }

  .fact-strip > div:nth-child(-n+2) {
    border-block-end: 1px solid var(--rule);
  }

  .work-secondary,
  .capability-list {
    grid-template-columns: 1fr;
  }

  .contact-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .masthead h1 {
    font-size: clamp(3rem, 16vw, 4.6rem);
  }

  .fact-strip,
  .work-featured {
    grid-template-columns: 1fr;
  }

  .fact-strip > div {
    border-inline-end: 0;
    border-block-end: 1px solid var(--rule);
  }

  .fact-strip > div:last-child {
    border-block-end: 0;
  }

  .ladder-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .ladder-when {
    padding-block-start: 0;
  }

  .ladder-item::after {
    top: 1.55rem;
  }

  .contact-links {
    grid-template-columns: 1fr;
  }

  .masthead-actions,
  .button {
    width: 100%;
    justify-content: center;
  }
}

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

  .load-seq,
  .reveal,
  .js .reveal {
    opacity: 1;
    transform: none;
    animation: none;
    transition: none;
  }
}