:root {
  --ink: #13242c;
  --ink-soft: #344b55;
  --muted: #5f747d;
  --paper: #f5f7f8;
  --surface: #ffffff;
  --navy: #10252f;
  --navy-soft: #193742;
  --cyan: #5ad4de;
  --cyan-dark: #006d78;
  --signal: #d66f35;
  --line: #d4dfe3;
  --line-dark: #31515d;
  --shadow: 0 24px 70px rgba(16, 37, 47, 0.14);
  --radius-small: 0.35rem;
  --radius-medium: 1rem;
  --max-width: 74rem;
  --header-height: 4.75rem;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

@supports (color: oklch(50% 0.1 200)) {
  :root {
    --ink: oklch(25% 0.025 225);
    --ink-soft: oklch(38% 0.025 220);
    --muted: oklch(50% 0.025 215);
    --paper: oklch(97% 0.006 220);
    --surface: oklch(100% 0 0);
    --navy: oklch(24% 0.04 225);
    --navy-soft: oklch(31% 0.045 220);
    --cyan: oklch(79% 0.12 200);
    --cyan-dark: oklch(48% 0.1 210);
    --signal: oklch(64% 0.15 50);
    --line: oklch(88% 0.015 215);
    --line-dark: oklch(42% 0.04 215);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1rem);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Barlow", "Segoe UI", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.85rem;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--ink);
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

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

.section-shell {
  width: min(calc(100% - 2rem), var(--max-width));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 0.75rem max(1rem, calc((100vw - var(--max-width)) / 2));
  background: rgba(245, 247, 248, 0.96);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 2.4rem;
  aspect-ratio: 1;
  place-items: center;
  background: var(--navy);
  color: var(--cyan);
  border-radius: var(--radius-small);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
}

.brand-name {
  font-size: 1.05rem;
}

.primary-navigation {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.primary-navigation a {
  position: relative;
  color: var(--ink-soft);
  font-size: 0.94rem;
  font-weight: 600;
  text-decoration: none;
}

.primary-navigation a:not(.nav-resume)::after {
  position: absolute;
  right: 0;
  bottom: -0.45rem;
  left: 0;
  height: 2px;
  background: var(--cyan-dark);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms var(--ease-out);
}

.primary-navigation a:hover,
.primary-navigation a[aria-current="true"] {
  color: var(--ink);
}

.primary-navigation a:hover::after,
.primary-navigation a[aria-current="true"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-resume {
  padding: 0.62rem 0.88rem;
  background: var(--navy);
  color: var(--surface) !important;
  border-radius: var(--radius-small);
  transition: background-color 180ms ease, transform 180ms var(--ease-out);
}

.nav-resume:hover {
  background: var(--cyan-dark);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  min-width: 3rem;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.6rem;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  cursor: pointer;
}

.menu-toggle-label {
  font-size: 0.85rem;
  font-weight: 700;
}

.menu-toggle-lines,
.menu-toggle-lines::before,
.menu-toggle-lines::after {
  width: 1.15rem;
  height: 2px;
  background: currentColor;
  content: "";
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle-lines {
  position: relative;
}

.menu-toggle-lines::before,
.menu-toggle-lines::after {
  position: absolute;
  left: 0;
}

.menu-toggle-lines::before {
  top: -0.35rem;
}

.menu-toggle-lines::after {
  top: 0.35rem;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-lines {
  background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-lines::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-lines::after {
  top: 0;
  transform: rotate(-45deg);
}

.hero {
  min-height: calc(100svh - var(--header-height));
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(22rem, 0.92fr);
  align-items: center;
  gap: clamp(3rem, 7vw, 7rem);
  width: min(calc(100% - 2rem), var(--max-width));
  margin-inline: auto;
  padding-block: clamp(4rem, 8vw, 7.5rem);
}

.hero-copy {
  animation: hero-copy-in 700ms var(--ease-out) both;
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1.4rem;
  color: var(--cyan-dark);
  font-size: 0.96rem;
  font-weight: 700;
}

.hero-status span {
  width: 0.65rem;
  height: 0.65rem;
  background: var(--signal);
  border-radius: 50%;
  box-shadow: 0 0 0 0.3rem color-mix(in srgb, var(--signal) 17%, transparent);
}

.hero h1 {
  max-width: 13ch;
  margin: 0;
  color: var(--ink);
  font-size: clamp(3.3rem, 6vw, 6rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 0.94;
  text-wrap: balance;
}

.hero h1 strong {
  display: block;
  margin-top: 0.18em;
  color: var(--cyan-dark);
  font-weight: 800;
}

.hero-summary {
  max-width: 62ch;
  margin: 2rem 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.68;
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms var(--ease-out), background-color 180ms ease,
    color 180ms ease, border-color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--navy);
  color: var(--surface);
}

.button-primary:hover {
  background: var(--cyan-dark);
}

.button-secondary {
  border-color: var(--ink);
  color: var(--ink);
}

.button-secondary:hover {
  background: var(--surface);
  border-color: var(--cyan-dark);
  color: var(--cyan-dark);
}

.hero-proof {
  max-width: 62ch;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.hero-visual {
  position: relative;
  width: min(100%, 34rem);
  min-height: 35rem;
  aspect-ratio: 4 / 5;
  margin: 0;
  padding: 0.65rem;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow);
  animation: hero-visual-in 780ms var(--ease-out) 100ms both;
}

.profile-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 36%;
  border-radius: 0.65rem;
}

.systems-scope {
  background: var(--navy);
  color: var(--surface);
}

.systems-layout {
  display: grid;
  grid-template-columns: 13rem minmax(0, 1fr);
  align-items: center;
  gap: 2rem;
  padding-block: 1.4rem;
}

.systems-layout h2 {
  margin: 0;
  color: var(--cyan);
  font-size: 1rem;
  font-weight: 700;
}

.systems-layout ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.systems-layout li {
  position: relative;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.88rem;
  font-weight: 600;
}

.systems-layout li:not(:last-child)::after {
  position: absolute;
  right: -0.72rem;
  color: var(--cyan);
  content: "/";
}

.section-block {
  padding-block: clamp(5rem, 9vw, 8rem);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(18rem, 0.75fr);
  align-items: end;
  gap: 3rem;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.section-heading h2 {
  max-width: 16ch;
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.6rem, 5vw, 4.8rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 0.98;
  text-wrap: balance;
}

.section-heading p {
  max-width: 58ch;
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  text-wrap: pretty;
}

.featured-experience {
  display: grid;
  grid-template-columns: minmax(15rem, 0.7fr) minmax(0, 1.7fr);
  gap: clamp(2rem, 6vw, 6rem);
  padding-block: 2.5rem;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.experience-identity {
  align-self: start;
}

.experience-date {
  margin: 0 0 0.5rem;
  color: var(--cyan-dark);
  font-size: 0.82rem;
  font-weight: 700;
}

.experience-identity h3,
.earlier-experience h3,
.education-list h3 {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.18;
}

.experience-identity > p:not(.experience-date) {
  margin: 0.5rem 0 1rem;
  color: var(--muted);
}

.text-link,
.projects-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--cyan-dark);
  font-weight: 700;
  text-decoration: none;
}

.text-link:hover,
.projects-link:hover {
  text-decoration: underline;
  text-underline-offset: 0.25rem;
}

.workstreams {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 2rem;
}

.workstream {
  padding: 0 0 2rem;
}

.workstream:nth-child(n + 3) {
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}

.workstream h4 {
  margin: 0 0 0.65rem;
  font-size: 1.1rem;
}

.workstream p {
  margin: 0;
  color: var(--ink-soft);
}

.workstream-tools {
  margin-top: 0.75rem !important;
  color: var(--cyan-dark) !important;
  font-size: 0.82rem;
  font-weight: 700;
}

.earlier-experience {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 2.5rem;
  border-bottom: 1px solid var(--line);
}

.earlier-experience article {
  padding: 1.75rem 2rem 2.5rem 0;
  border-top: 1px solid var(--line);
}

.earlier-experience article:not(:first-child) {
  padding-left: 2rem;
  border-left: 1px solid var(--line);
}

.earlier-experience p:last-child {
  margin: 0.65rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.projects-section {
  background: var(--navy);
  color: var(--surface);
}

.projects-section .section-heading h2 {
  color: var(--surface);
}

.projects-section .section-heading p {
  color: rgba(255, 255, 255, 0.7);
}

.project-list {
  border-top: 1px solid var(--line-dark);
}

.project-row {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
  align-items: center;
  gap: clamp(2.5rem, 7vw, 7rem);
  padding-block: clamp(3rem, 6vw, 5rem);
  border-bottom: 1px solid var(--line-dark);
}

.project-row:nth-child(even) .project-copy {
  order: 2;
}

.project-row:nth-child(even) > :last-child {
  order: 1;
}

.project-context {
  margin: 0 0 0.65rem;
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 700;
}

.project-copy h3 {
  max-width: 20ch;
  margin: 0;
  color: var(--surface);
  font-size: clamp(2rem, 4vw, 3.7rem);
  line-height: 1;
  text-wrap: balance;
}

.project-copy > p:not(.project-context) {
  max-width: 64ch;
  margin: 1.35rem 0 0;
  color: rgba(255, 255, 255, 0.72);
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.project-stack li {
  padding: 0.28rem 0.58rem;
  color: var(--cyan);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-small);
  font-size: 0.78rem;
  font-weight: 700;
}

.project-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 15rem;
}

.project-diagram span {
  display: grid;
  min-width: 5rem;
  min-height: 3.25rem;
  place-items: center;
  padding-inline: 0.6rem;
  color: var(--surface);
  border: 1px solid var(--cyan);
  border-radius: var(--radius-small);
  font-size: 0.82rem;
  font-weight: 700;
}

.project-diagram i {
  width: 3rem;
  height: 1px;
  background: var(--cyan);
}

.project-diagram i::after {
  display: block;
  width: 0.45rem;
  height: 0.45rem;
  margin: -0.2rem 0 0 auto;
  border-top: 1px solid var(--cyan);
  border-right: 1px solid var(--cyan);
  content: "";
  transform: rotate(45deg);
}

.project-chart {
  position: relative;
  min-height: 15rem;
  display: flex;
  align-items: end;
  justify-content: center;
  gap: 1rem;
  padding: 2rem;
  border-bottom: 1px solid var(--line-dark);
}

.project-chart span {
  position: relative;
  z-index: 2;
  width: 2rem;
  height: var(--bar);
  background: var(--cyan);
  opacity: 0.8;
}

.project-chart b {
  position: absolute;
  right: 0;
  bottom: 84%;
  left: 0;
  height: 2px;
  background: var(--signal);
}

.project-terminal {
  min-height: 15rem;
  display: grid;
  align-items: center;
  padding: 2rem;
  background: #08171d;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-small);
}

.project-terminal code {
  display: grid;
  gap: 0.7rem;
  color: rgba(255, 255, 255, 0.68);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.86rem;
}

.project-terminal code span:first-child,
.terminal-success {
  color: var(--cyan);
}

.provider-orbit {
  position: relative;
  min-height: 17rem;
}

.orbit-core {
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  width: 4rem;
  height: 4rem;
  place-items: center;
  background: var(--cyan);
  color: var(--navy);
  border-radius: 50%;
  font-weight: 800;
  transform: translate(-50%, -50%);
}

.provider-orbit i {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1.25rem;
  height: 1.25rem;
  background: transparent;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  transform-origin: 0 0;
}

.provider-orbit i:nth-of-type(1) { transform: rotate(0deg) translateX(6rem); }
.provider-orbit i:nth-of-type(2) { transform: rotate(45deg) translateX(6rem); }
.provider-orbit i:nth-of-type(3) { transform: rotate(90deg) translateX(6rem); }
.provider-orbit i:nth-of-type(4) { transform: rotate(135deg) translateX(6rem); }
.provider-orbit i:nth-of-type(5) { transform: rotate(180deg) translateX(6rem); }
.provider-orbit i:nth-of-type(6) { transform: rotate(225deg) translateX(6rem); }
.provider-orbit i:nth-of-type(7) { transform: rotate(270deg) translateX(6rem); }
.provider-orbit i:nth-of-type(8) { transform: rotate(315deg) translateX(6rem); }

.provider-orbit::before,
.provider-orbit::after {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
  content: "";
  transform: translate(-50%, -50%);
}

.provider-orbit::before {
  width: 13rem;
  height: 13rem;
}

.provider-orbit::after {
  width: 9rem;
  height: 9rem;
}

.robot-route {
  position: relative;
  min-height: 15rem;
  border-bottom: 1px solid var(--line-dark);
}

.robot-route::before {
  position: absolute;
  top: 50%;
  right: 5%;
  left: 5%;
  height: 2px;
  background: var(--line-dark);
  content: "";
}

.robot-route span,
.robot-route b,
.robot-route i {
  position: absolute;
  top: calc(50% - 0.55rem);
  width: 1.1rem;
  height: 1.1rem;
  background: var(--navy);
  border: 2px solid var(--cyan);
  border-radius: 50%;
}

.robot-route span { left: 8%; }
.robot-route b { left: 49%; }
.robot-route i { right: 8%; }

.robot-route b::after {
  position: absolute;
  top: -3.4rem;
  left: -2rem;
  width: 4.8rem;
  height: 2.4rem;
  background: var(--cyan);
  clip-path: polygon(0 100%, 12% 30%, 42% 30%, 52% 0, 65% 30%, 90% 30%, 100% 100%);
  content: "";
  opacity: 0.85;
}

.cartpole-scene {
  position: relative;
  min-height: 15rem;
}

.cartpole-rail {
  position: absolute;
  right: 10%;
  bottom: 30%;
  left: 10%;
  height: 2px;
  background: var(--line-dark);
}

.cartpole-rail::before,
.cartpole-rail::after {
  position: absolute;
  bottom: 0;
  width: 2px;
  height: 0.75rem;
  background: var(--line-dark);
  content: "";
}

.cartpole-rail::before {
  left: 0;
}

.cartpole-rail::after {
  right: 0;
}

.cartpole-cart {
  position: absolute;
  bottom: calc(30% + 2px);
  left: calc(50% - 2.4rem);
  width: 4.8rem;
  height: 1.7rem;
  background: var(--navy);
  border: 2px solid var(--cyan);
  border-radius: 0.3rem;
  animation: cartpole-cart-drift 7s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}

.cartpole-pole {
  position: absolute;
  z-index: 2;
  bottom: calc(30% + 1.55rem);
  left: calc(50% - 1.5px);
  width: 3px;
  height: 7.5rem;
  background: var(--cyan);
  transform-origin: bottom center;
  animation: cartpole-pole-balance 7s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}

.cartpole-pole::after {
  position: absolute;
  top: -0.6rem;
  left: calc(50% - 0.6rem);
  width: 1.2rem;
  height: 1.2rem;
  background: var(--signal);
  border-radius: 50%;
  content: "";
}

.forecast-scene {
  position: relative;
  height: 15rem;
  display: flex;
  align-items: end;
  justify-content: center;
  gap: 0.7rem;
  padding: 3rem 1.5rem 2rem;
  border-bottom: 1px solid var(--line-dark);
}

.forecast-scene span {
  position: relative;
  z-index: 2;
  width: 1.6rem;
  height: var(--bar);
  background: rgba(90, 212, 222, 0.28);
  border: 1px solid var(--cyan);
  border-bottom: 0;
}

.forecast-window {
  position: absolute;
  z-index: 1;
  top: 2.4rem;
  bottom: 2rem;
  left: 50%;
  width: 5.2rem;
  margin-left: -2.6rem;
  border: 1px dashed var(--cyan);
  border-radius: var(--radius-small);
  background: rgba(90, 212, 222, 0.12);
}

.forecast-window::after {
  position: absolute;
  top: -1.5rem;
  left: 0;
  color: var(--cyan);
  content: "Best window";
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.projects-link {
  margin-top: 2.5rem;
  color: var(--cyan);
}

.skills-section {
  background: var(--surface);
}

.skill-matrix {
  margin: 0;
  border-top: 2px solid var(--ink);
}

.skill-matrix > div {
  display: grid;
  grid-template-columns: minmax(12rem, 0.65fr) minmax(0, 1.35fr);
  gap: 2rem;
  padding-block: 1.3rem;
  border-bottom: 1px solid var(--line);
}

.skill-matrix dt {
  font-weight: 700;
}

.skill-matrix dd {
  margin: 0;
  color: var(--muted);
}

.education-section {
  background: var(--paper);
}

.education-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(3rem, 8vw, 8rem);
}

.compact-heading {
  display: block;
  margin-bottom: 2rem;
}

.compact-heading h2 {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
}

.education-list,
.credentials-list {
  border-top: 2px solid var(--ink);
}

.education-list article,
.credentials-list li {
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.education-list p:last-child {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

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

.credentials-list strong,
.credentials-list span {
  display: block;
}

.credentials-list span {
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.contact-section {
  padding-block: clamp(4rem, 8vw, 7rem);
  background: var(--cyan-dark);
  color: var(--surface);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
  align-items: end;
  gap: 3rem;
}

.contact-layout h2 {
  max-width: 15ch;
  margin: 0;
  font-size: clamp(2.6rem, 5vw, 5rem);
  letter-spacing: -0.035em;
  line-height: 0.98;
  text-wrap: balance;
}

.contact-layout p {
  max-width: 60ch;
  margin: 1.5rem 0 0;
  color: rgba(255, 255, 255, 0.82);
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.8rem;
}

.button-light {
  background: var(--surface);
  color: var(--cyan-dark);
}

.button-outline-light {
  color: var(--surface);
  border-color: rgba(255, 255, 255, 0.66);
}

.button-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--surface);
}

.site-footer {
  padding-block: 1.5rem;
  background: var(--navy);
  color: rgba(255, 255, 255, 0.64);
}

.footer-layout {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-layout p {
  margin: 0;
  font-size: 0.82rem;
}

@keyframes hero-copy-in {
  from {
    opacity: 0;
    transform: translateY(1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes cartpole-pole-balance {
  0%,
  100% {
    transform: rotate(-7deg);
  }
  50% {
    transform: rotate(7deg);
  }
}

@keyframes cartpole-cart-drift {
  0%,
  100% {
    transform: translateX(1.6rem);
  }
  50% {
    transform: translateX(-1.6rem);
  }
}

@keyframes hero-visual-in {
  from {
    opacity: 0;
    transform: translateY(1.5rem) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 62rem) {
  .menu-toggle {
    display: inline-flex;
  }

  .primary-navigation {
    position: fixed;
    inset: var(--header-height) 0 auto;
    display: grid;
    gap: 0;
    padding: 1rem;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 1rem 2rem rgba(16, 37, 47, 0.12);
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-130%);
    transition: transform 220ms var(--ease-out), visibility 0s linear 220ms;
  }

  .primary-navigation.is-open {
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
    transition-delay: 0s;
  }

  .primary-navigation a {
    min-height: 3.25rem;
    display: flex;
    align-items: center;
    padding: 0.7rem 0.6rem;
    border-bottom: 1px solid var(--line);
  }

  .primary-navigation a::after {
    display: none;
  }

  .nav-resume {
    justify-content: center;
    margin-top: 0.7rem;
    border-bottom: 0 !important;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .hero h1 {
    max-width: 15ch;
  }

  .hero-visual {
    min-height: 0;
    margin-inline: auto;
  }

  .section-heading,
  .featured-experience,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .section-heading {
    align-items: start;
    gap: 1.5rem;
  }

  .section-heading h2 {
    max-width: 19ch;
  }

  .workstreams {
    grid-template-columns: 1fr;
  }

  .workstream:nth-child(n + 2) {
    padding-top: 2rem;
    border-top: 1px solid var(--line);
  }

  .earlier-experience {
    grid-template-columns: 1fr;
  }

  .earlier-experience article:not(:first-child) {
    padding-left: 0;
    border-left: 0;
  }

  .project-row {
    grid-template-columns: 1fr;
  }

  .project-row:nth-child(even) .project-copy,
  .project-row:nth-child(even) > :last-child {
    order: initial;
  }

  .project-copy h3 {
    max-width: 24ch;
  }

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

@media (max-width: 44rem) {
  :root {
    --header-height: 4.25rem;
  }

  .site-header {
    gap: 0.75rem;
  }

  .brand-name {
    display: none;
  }

  .hero {
    padding-block: 3.5rem 4rem;
  }

  .hero h1 {
    font-size: clamp(3rem, 14vw, 4.6rem);
  }

  .hero-visual {
    min-height: 0;
  }

  .systems-layout {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  .systems-layout li:not(:last-child)::after {
    display: none;
  }

  .section-heading h2,
  .contact-layout h2 {
    font-size: clamp(2.4rem, 11vw, 3.7rem);
  }

  .project-row {
    gap: 1.5rem;
  }

  .project-row > * {
    min-width: 0;
  }

  .project-diagram span {
    min-width: 0;
    flex: 1 1 0;
    padding-inline: 0.35rem;
  }

  .project-diagram i {
    flex: 0 1 1.5rem;
    min-width: 0.75rem;
  }

  .project-diagram,
  .project-chart,
  .project-terminal,
  .provider-orbit,
  .robot-route,
  .cartpole-scene,
  .forecast-scene {
    min-height: 12rem;
  }

  .cartpole-pole {
    height: 5.5rem;
  }

  .forecast-scene {
    height: 12rem;
    gap: 0.45rem;
    padding: 2.6rem 1rem 1.75rem;
  }

  .forecast-scene span {
    width: 1.15rem;
  }

  .forecast-window {
    top: 2rem;
    width: 3.9rem;
    margin-left: -1.95rem;
  }

  .skill-matrix > div,
  .education-layout {
    grid-template-columns: 1fr;
  }

  .skill-matrix > div {
    gap: 0.35rem;
  }

  .footer-layout {
    display: grid;
    gap: 0.35rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .site-header,
  .hero-actions,
  .systems-scope,
  .contact-section,
  .site-footer {
    display: none;
  }

  body {
    background: white;
  }

  .hero,
  .section-block {
    min-height: 0;
    padding-block: 2rem;
  }

  .project-row,
  .featured-experience,
  .earlier-experience article {
    break-inside: avoid;
  }
}