:root {
  --ink: #07111f;
  --ink-soft: #102238;
  --paper: #f4f1e9;
  --paper-deep: #e9e4d9;
  --blue: #2878ff;
  --blue-light: #6da3ff;
  --mint: #8fffc1;
  --white: #ffffff;
  --muted: #647080;
  --line: rgba(7, 17, 31, 0.14);
  --line-dark: rgba(255, 255, 255, 0.14);
  --font-sans: "Manrope", Arial, sans-serif;
  --font-mono: "DM Mono", Consolas, monospace;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  margin: 0;
  overflow-x: clip;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 12px 16px;
  border-radius: 3px;
  color: var(--ink);
  background: var(--mint);
  font-size: 14px;
  font-weight: 800;
  transform: translateY(-150%);
  transition: transform 160ms ease;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.page-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(7, 17, 31, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 17, 31, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}

.section-shell {
  width: min(calc(100% - 48px), var(--max-width));
  margin-inline: auto;
}

.section-block {
  padding-block: 128px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 50;
  display: flex;
  width: 100%;
  min-height: 92px;
  align-items: center;
  justify-content: space-between;
  padding-inline: max(24px, calc((100vw - var(--max-width)) / 2));
  color: var(--white);
  transition: min-height 180ms ease;
}

.site-header::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  border-bottom: 1px solid transparent;
  content: "";
  background: rgba(7, 17, 31, 0.94);
  opacity: 0;
  backdrop-filter: blur(16px);
  transition: opacity 180ms ease, border-color 180ms ease;
}

.site-header.is-scrolled {
  min-height: 72px;
}

.site-header.is-scrolled::before,
.site-header:focus-within::before {
  border-color: rgba(255, 255, 255, 0.12);
  opacity: 1;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.profile-link {
  display: grid;
  min-width: 44px;
  min-height: 44px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
}

.brand-mark {
  display: block;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  object-fit: cover;
  object-position: center 32%;
  transition: border-color 180ms ease, transform 180ms ease;
}

.profile-link:hover .brand-mark,
.profile-link:focus-visible .brand-mark {
  border-color: var(--blue-light);
  transform: scale(1.06);
}

.brand-name {
  font-size: 15px;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 13px;
  font-weight: 600;
}

.primary-nav a {
  position: relative;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  transition: color 180ms ease;
}

.primary-nav a:hover,
.primary-nav a[aria-current="location"] {
  color: var(--blue-light);
}

.primary-nav a[href^="#"]::after {
  position: absolute;
  right: 0;
  bottom: 5px;
  left: 0;
  height: 2px;
  content: "";
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.primary-nav a[href^="#"]:hover::after,
.primary-nav a[href^="#"]:focus-visible::after,
.primary-nav a[aria-current="location"]::after {
  transform: scaleX(1);
}

.primary-nav .nav-cta {
  padding: 11px 17px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
}

.menu-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  border: 0;
  background: transparent;
}

.hero {
  position: relative;
  display: grid;
  min-height: 760px;
  grid-template-columns: 1.08fr 0.92fr;
  align-items: center;
  gap: 72px;
  color: var(--white);
}

.hero::before {
  position: absolute;
  top: 0;
  left: 50%;
  z-index: -2;
  width: 100vw;
  height: 100%;
  content: "";
  background:
    radial-gradient(circle at 79% 27%, rgba(40, 120, 255, 0.23), transparent 27%),
    radial-gradient(circle at 60% 80%, rgba(143, 255, 193, 0.08), transparent 22%),
    var(--ink);
  transform: translateX(-50%);
}

.hero::after {
  position: absolute;
  bottom: 0;
  left: 50%;
  z-index: -1;
  width: 100vw;
  height: 1px;
  content: "";
  background: rgba(255, 255, 255, 0.13);
  transform: translateX(-50%);
}

.eyebrow {
  margin: 0 0 24px;
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--mint);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 6px rgba(143, 255, 193, 0.09);
}

.hero h1 {
  max-width: 690px;
  margin: 0;
  font-size: clamp(54px, 6.2vw, 88px);
  font-weight: 700;
  letter-spacing: -0.065em;
  line-height: 0.99;
}

.hero h1 span {
  color: var(--blue-light);
}

.hero-lead {
  max-width: 650px;
  margin: 30px 0 0;
  color: #b8c3d0;
  font-size: 18px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 22px;
  border-radius: 3px;
  font-size: 13px;
  font-weight: 700;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

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

.button-primary {
  color: var(--white);
  background: var(--blue);
}

.button-primary:hover {
  background: #1268f6;
}

.button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--white);
  background: rgba(255, 255, 255, 0.04);
}

.button-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.button svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

.hero-visual {
  position: relative;
  display: grid;
  overflow: visible;
  min-height: 460px;
  place-items: center;
}

.system-card {
  position: relative;
  z-index: 2;
  width: min(100%, 430px);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(14, 31, 51, 0.82);
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(16px);
}

.system-card-header,
.system-footer {
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.system-card-header {
  justify-content: space-between;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line-dark);
  color: #8291a4;
}

.live-label {
  color: var(--mint);
}

.live-label::before {
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 7px;
  border-radius: 50%;
  content: "";
  background: var(--mint);
}

.data-flow {
  padding: 35px 28px;
}

.flow-node {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.025);
}

.flow-node.active {
  border-color: rgba(40, 120, 255, 0.6);
  background: rgba(40, 120, 255, 0.09);
  box-shadow: 0 0 30px rgba(40, 120, 255, 0.08);
}

.node-icon {
  display: grid;
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  place-items: center;
  border-radius: 50%;
  color: var(--blue-light);
  background: rgba(40, 120, 255, 0.12);
  font-family: var(--font-mono);
  font-size: 11px;
}

.flow-node strong,
.flow-node small {
  display: block;
}

.flow-node strong {
  margin-bottom: 5px;
  font-size: 13px;
}

.flow-node small {
  color: #8291a4;
  font-size: 11px;
}

.flow-line {
  display: block;
  width: 1px;
  height: 22px;
  margin-left: 33px;
  background: linear-gradient(var(--blue), rgba(40, 120, 255, 0.1));
}

.system-footer {
  justify-content: space-between;
  padding: 15px 18px;
  border-top: 1px solid var(--line-dark);
  color: #75869a;
}

.orbit {
  position: absolute;
  border: 1px solid rgba(109, 163, 255, 0.12);
  border-radius: 50%;
}

.orbit::after {
  position: absolute;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  content: "";
  background: var(--blue);
  box-shadow: 0 0 16px var(--blue);
}

.orbit-one {
  width: min(490px, calc(100vw - 48px));
  aspect-ratio: 1;
  animation: spin 22s linear infinite;
}

.orbit-one::after {
  top: 28%;
  right: 3%;
}

.orbit-two {
  width: min(600px, calc(100vw - 96px));
  height: auto;
  aspect-ratio: 15 / 8;
  transform: rotate(-18deg);
  animation: pulse 5s ease-in-out infinite;
}

.orbit-two::after {
  bottom: 16%;
  left: 12%;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 0.35; }
  50% { opacity: 1; }
}

.section-heading {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  align-items: start;
  padding-bottom: 58px;
  border-bottom: 1px solid var(--line);
}

.section-heading h2 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(38px, 5vw, 64px);
  letter-spacing: -0.055em;
  line-height: 1.05;
}

.about-grid {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 48px;
  padding-top: 64px;
}

.about-lead {
  max-width: 390px;
  margin: 0;
  font-size: 25px;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.4;
}

.about-copy {
  max-width: 720px;
}

.about-copy p {
  margin: 0 0 24px;
  color: #44505e;
  font-size: 18px;
  line-height: 1.75;
}

.profile-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 70px;
  border-block: 1px solid var(--line);
}

.profile-strip div {
  padding: 26px 24px 28px 0;
}

.profile-strip div + div {
  padding-left: 28px;
  border-left: 1px solid var(--line);
}

.profile-strip span,
.profile-strip strong {
  display: block;
}

.profile-strip span {
  margin-bottom: 7px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.profile-strip strong {
  font-size: 14px;
}

.experience,
.credentials {
  color: var(--white);
  background: var(--ink);
}

.experience .section-heading,
.credentials .section-heading {
  border-color: var(--line-dark);
}

.experience .section-heading .eyebrow,
.credentials .section-heading .eyebrow {
  color: var(--mint);
}

.timeline {
  border-bottom: 1px solid var(--line-dark);
}

.timeline-item {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  padding-block: 70px;
  border-bottom: 1px solid var(--line-dark);
}

.timeline-item:last-child {
  border-bottom: 0;
}

.timeline-meta {
  display: flex;
  max-width: 330px;
  justify-content: space-between;
  padding-right: 44px;
}

.timeline-date {
  color: #91a0b2;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  text-transform: uppercase;
}

.timeline-number {
  color: rgba(255, 255, 255, 0.22);
  font-family: var(--font-mono);
  font-size: 12px;
}

.timeline-content {
  max-width: 740px;
}

.company {
  margin: 0 0 14px;
  color: var(--blue-light);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.timeline-content h3 {
  margin: 0 0 22px;
  font-size: clamp(28px, 3vw, 40px);
  letter-spacing: -0.04em;
}

.timeline-content > p:not(.company) {
  margin: 0;
  color: #a9b5c4;
  font-size: 16px;
  line-height: 1.75;
}

.impact-list {
  display: grid;
  gap: 13px;
  margin: 30px 0 0;
  padding: 0;
  color: #c3cbd5;
  font-size: 14px;
  line-height: 1.6;
  list-style: none;
}

.impact-list li {
  position: relative;
  padding-left: 22px;
}

.impact-list li::before {
  position: absolute;
  top: 0.64em;
  left: 0;
  width: 7px;
  height: 1px;
  content: "";
  background: var(--mint);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.tag-list li,
.project-stack span {
  padding: 8px 11px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 2px;
  color: #91a0b2;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.project-card {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  margin-top: 36px;
  overflow: hidden;
  color: var(--white);
  background: var(--ink-soft);
  box-shadow: 0 28px 80px rgba(7, 17, 31, 0.14);
}

.featured-project {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  margin-top: 64px;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
  box-shadow: 0 30px 90px rgba(7, 17, 31, 0.18);
}

.featured-project-copy {
  padding: 52px 48px 46px;
  background:
    radial-gradient(circle at 0 0, rgba(40, 120, 255, 0.18), transparent 40%),
    var(--ink-soft);
}

.project-label-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.project-status {
  padding: 7px 10px;
  border: 1px solid rgba(143, 255, 193, 0.3);
  border-radius: 999px;
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.featured-project h3 {
  margin: 28px 0 22px;
  font-size: clamp(34px, 4vw, 54px);
  letter-spacing: -0.055em;
  line-height: 1.04;
}

.featured-project-lead {
  margin: 0;
  color: #b4bfcc;
  font-size: 15px;
  line-height: 1.75;
}

.project-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 34px;
  border-block: 1px solid var(--line-dark);
}

.project-metrics div {
  padding: 20px 16px 20px 0;
}

.project-metrics div + div {
  padding-left: 18px;
  border-left: 1px solid var(--line-dark);
}

.project-metrics strong,
.project-metrics span {
  display: block;
}

.project-metrics strong {
  margin-bottom: 6px;
  color: var(--white);
  font-size: 26px;
  letter-spacing: -0.04em;
}

.project-metrics span,
.metric-note {
  color: #8493a6;
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.5;
  text-transform: uppercase;
}

.metric-note {
  margin: 10px 0 0;
  text-transform: none;
}

.featured-project-points {
  display: grid;
  gap: 17px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.featured-project-points li {
  position: relative;
  padding-left: 19px;
}

.featured-project-points li::before {
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 7px;
  height: 1px;
  content: "";
  background: var(--mint);
}

.featured-project-points strong,
.featured-project-points span {
  display: block;
}

.featured-project-points strong {
  margin-bottom: 4px;
  font-size: 13px;
}

.featured-project-points span {
  color: #8f9cad;
  font-size: 12px;
  line-height: 1.55;
}

.project-actions {
  margin-top: 34px;
}

.project-actions .button {
  width: fit-content;
}

.featured-project-visual {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 34px;
  background:
    linear-gradient(145deg, rgba(40, 120, 255, 0.11), transparent 45%),
    #091625;
}

.project-image-link {
  position: relative;
  display: block;
  min-height: 0;
  flex: 1;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 5px;
  background: #edf1f7;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.26);
}

.project-image-link::after {
  position: absolute;
  inset: 0;
  content: "";
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  pointer-events: none;
}

.project-image-link img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left top;
  transition: transform 350ms ease;
}

.project-image-link:hover img {
  transform: scale(1.015);
}

.pipeline-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 24px;
  color: #8392a5;
  font-family: var(--font-mono);
  font-size: 10px;
  text-align: center;
  text-transform: uppercase;
}

.pipeline-flow i {
  height: 1px;
  flex: 1;
  background: linear-gradient(90deg, var(--blue), rgba(40, 120, 255, 0.12));
}

.featured-project-stack {
  grid-column: 1 / -1;
}

.project-intro {
  padding: 58px 48px;
  background:
    linear-gradient(rgba(40, 120, 255, 0.15), transparent),
    radial-gradient(circle at 0 100%, rgba(143, 255, 193, 0.11), transparent 42%);
}

.project-kicker {
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.project-intro h3 {
  margin: 24px 0;
  font-size: clamp(32px, 4vw, 50px);
  letter-spacing: -0.05em;
  line-height: 1.08;
}

.project-intro p {
  margin: 0;
  color: #a9b5c4;
  font-size: 15px;
  line-height: 1.7;
}

.project-details {
  padding: 38px 48px;
  background: #0b192a;
}

.project-detail {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  padding-block: 23px;
  border-bottom: 1px solid var(--line-dark);
}

.project-detail:last-child {
  border-bottom: 0;
}

.project-detail > span {
  padding-top: 4px;
  color: var(--blue-light);
  font-family: var(--font-mono);
  font-size: 11px;
}

.project-detail h4 {
  margin: 0 0 9px;
  font-size: 16px;
}

.project-detail p {
  margin: 0;
  color: #8f9cad;
  font-size: 13px;
  line-height: 1.65;
}

.project-stack {
  display: flex;
  grid-column: 1 / -1;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 48px;
  border-top: 1px solid var(--line-dark);
  background: #081421;
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 64px;
  border: 1px solid var(--line-dark);
}

.skill-card {
  position: relative;
  min-height: 400px;
  padding: 38px;
}

.skill-card + .skill-card {
  border-left: 1px solid var(--line-dark);
}

.skill-index {
  color: var(--blue-light);
  font-family: var(--font-mono);
  font-size: 11px;
}

.skill-card h3 {
  margin: 60px 0 28px;
  font-size: 25px;
  letter-spacing: -0.04em;
}

.skill-card ul {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  color: #9eabba;
  font-size: 13px;
  list-style: none;
}

.skill-card li {
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.education-cert-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  margin-top: 112px;
}

.credential-group .eyebrow {
  color: var(--mint);
}

.credential-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding-block: 25px;
  border-top: 1px solid var(--line-dark);
}

.credential-row h3 {
  margin: 0 0 7px;
  font-size: 16px;
}

.credential-row p,
.credential-row > span {
  margin: 0;
  color: #8493a6;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  text-transform: uppercase;
}

.contact {
  padding-block: 150px;
  text-align: center;
}

.contact .eyebrow {
  margin-bottom: 34px;
}

.contact h2 {
  max-width: 830px;
  margin: 0 auto;
  font-size: clamp(48px, 7vw, 86px);
  letter-spacing: -0.07em;
  line-height: 1;
}

.contact > p:not(.eyebrow) {
  max-width: 580px;
  margin: 30px auto 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 26px;
  margin-top: 40px;
}

.text-link {
  padding-bottom: 4px;
  border-bottom: 1px solid var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.site-footer {
  display: flex;
  min-height: 100px;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

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

@media (max-width: 900px) {
  .section-block {
    padding-block: 96px;
  }

  .menu-toggle {
    position: relative;
    z-index: 22;
    display: grid;
    width: 44px;
    height: 44px;
    place-content: center;
    gap: 6px;
    cursor: pointer;
  }

  .menu-toggle span:not(.sr-only) {
    display: block;
    width: 22px;
    height: 1px;
    background: var(--white);
    transition: transform 180ms ease;
  }

  .menu-toggle[aria-expanded="true"] span:nth-last-child(2) {
    transform: translateY(3.5px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .primary-nav {
    position: fixed;
    inset: 0;
    z-index: 21;
    display: flex;
    visibility: hidden;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 28px;
    padding: 48px;
    opacity: 0;
    color: var(--white);
    background: var(--ink);
    font-size: 28px;
    transition: opacity 180ms ease, visibility 180ms ease;
  }

  .primary-nav a[href^="#"] {
    width: 100%;
  }

  .primary-nav a[href^="#"]::after {
    right: auto;
    bottom: 0;
    width: 56px;
  }

  .primary-nav.open {
    visibility: visible;
    opacity: 1;
  }

  .primary-nav .nav-cta {
    font-size: 15px;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 160px;
    padding-bottom: 90px;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-visual {
    min-height: 400px;
  }

  .orbit-two {
    width: min(100%, calc(100vw - 96px));
  }

  .section-heading,
  .about-grid,
  .timeline-item {
    grid-template-columns: 1fr;
  }

  .section-heading {
    gap: 10px;
  }

  .about-grid {
    gap: 32px;
  }

  .timeline-item {
    gap: 30px;
  }

  .timeline-meta {
    max-width: none;
  }

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

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

  .featured-project-visual {
    min-height: 520px;
  }

  .featured-project-stack {
    grid-column: auto;
  }

  .skill-card {
    padding: 30px 24px;
  }
}

@media (max-width: 680px) {
  html {
    scroll-padding-top: 68px;
  }

  .section-shell {
    width: min(calc(100% - 32px), var(--max-width));
  }

  .site-header {
    min-height: 76px;
    padding-inline: 16px;
  }

  .site-header.is-scrolled {
    min-height: 68px;
  }

  .section-block {
    padding-block: 78px;
  }

  .brand-name {
    display: none;
  }

  .hero {
    padding-top: 135px;
    padding-bottom: 75px;
  }

  .hero h1 {
    font-size: clamp(46px, 14vw, 66px);
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 330px;
  }

  .system-card {
    width: 100%;
  }

  .data-flow {
    padding: 24px 18px;
  }

  .orbit-one {
    width: min(360px, calc(100vw - 48px));
  }

  .section-heading {
    padding-bottom: 38px;
  }

  .section-heading h2 {
    font-size: 39px;
  }

  .about-grid {
    padding-top: 40px;
  }

  .profile-strip {
    grid-template-columns: 1fr;
    margin-top: 45px;
  }

  .profile-strip div + div {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .timeline-item {
    padding-block: 50px;
  }

  .timeline-content h3 {
    font-size: 30px;
  }

  .project-card {
    margin-top: 44px;
  }

  .featured-project {
    margin-top: 44px;
  }

  .featured-project-copy {
    padding: 38px 25px;
  }

  .featured-project-visual {
    min-height: 390px;
    padding: 25px;
  }

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

  .project-metrics div {
    padding: 17px 0;
  }

  .project-metrics div + div {
    padding-left: 0;
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .pipeline-flow {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .pipeline-flow i {
    min-width: 20px;
    flex: 0 1 28px;
  }

  .project-intro,
  .project-details {
    padding: 38px 25px;
  }

  .project-stack {
    padding: 18px 25px;
  }

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

  .skill-card {
    min-height: auto;
  }

  .skill-card + .skill-card {
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .skill-card h3 {
    margin-top: 35px;
  }

  .education-cert-grid {
    grid-template-columns: 1fr;
    gap: 65px;
    margin-top: 78px;
  }

  .contact {
    padding-block: 100px;
  }

  .contact h2 {
    font-size: 50px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    padding-block: 28px;
  }

  .site-footer p {
    margin: 0;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    scroll-behavior: auto !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}