:root {
  --ink: #193128;
  --muted: #607067;
  --paper: #eef2ec;
  --surface: #dfe8df;
  --surface-strong: #cbd9cc;
  --diagram-surface: #d5e0d6;
  --line: #bcc9bd;
  --accent: #2f6048;
  --accent-light: #e7efe8;
  --content-width: 1280px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Manrope", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

code {
  font-family: "DM Mono", monospace;
  font-size: 0.88em;
}

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

p,
h1,
h2,
h3 {
  margin-top: 0;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 20;
  padding: 0.65rem 0.85rem;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-200%);
}

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

.site-header,
.hero,
.section,
.site-footer {
  width: min(calc(100% - 6rem), var(--content-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  border-bottom: 1px solid var(--line);
}

.site-title {
  margin: 0;
  line-height: 1;
}

.wordmark {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  gap: clamp(1.5rem, 3vw, 3rem);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav a,
.site-footer a {
  text-underline-offset: 0.35rem;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-footer a:hover,
.site-footer a:focus-visible {
  text-decoration: underline;
}

.hero {
  min-height: 0;
  padding: 3.5rem 0 5.5rem;
}

.hero-kicker {
  font-family: "DM Mono", monospace;
  font-size: 0.77rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-kicker span {
  margin-inline: 0.45rem;
  color: var(--accent);
}

.hero-intro {
  max-width: 48rem;
  margin-top: 1.75rem;
}

.hero-intro > p {
  margin-bottom: 2rem;
  font-size: clamp(1.55rem, 3vw, 2.65rem);
  letter-spacing: -0.045em;
  line-height: 1.25;
}

.hero-actions {
  display: flex;
  gap: 2rem;
}

.projects-index-hero {
  display: block;
  padding-block: clamp(2.5rem, 4vw, 3.75rem);
}

.projects-page-hero,
.aws-lab-index-hero {
  width: 100%;
  padding-inline: max(3rem, calc((100vw - var(--content-width)) / 2));
  background: var(--surface);
}

.projects-index-page .projects-section {
  background: var(--paper);
}

.projects-index-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: end;
  margin-top: 0;
}

.projects-index-intro h1 {
  margin-bottom: 0;
  font-size: clamp(2.8rem, 5vw, 5.2rem);
  font-weight: 400;
  letter-spacing: -0.07em;
  line-height: 0.9;
}

.projects-index-title .hero-kicker {
  margin: 1rem 0 0;
}

.projects-index-section .section-heading h2 {
  font-size: clamp(1.9rem, 3vw, 3rem);
}

.projects-index-intro p {
  max-width: 34rem;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
}

.text-link,
.inline-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  border-bottom: 1px solid currentColor;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.text-link span,
.inline-link span {
  transition: transform 180ms ease;
}

.text-link:hover span,
.inline-link:hover span {
  transform: translate(2px, 2px);
}

.text-link.muted {
  color: var(--muted);
}

.section {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 2rem;
  padding: clamp(6rem, 11vw, 9rem) 0;
  border-top: 1px solid var(--line);
}

.section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(2.2rem, 4vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 1;
}

.section-heading .section-link {
  margin-top: 2rem;
  color: var(--accent);
}

.eyebrow,
.project-index,
.project-meta,
.lab-number,
.status,
.field-group label,
.form-note,
.site-footer {
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.eyebrow {
  margin-bottom: 1.1rem;
  color: var(--muted);
}

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

.projects-section {
  width: 100%;
  padding-inline: max(3rem, calc((100vw - var(--content-width)) / 2));
  border-top: 0;
  background: var(--surface);
}

.project-row {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr) 12rem;
  gap: 1.5rem;
  padding: 2rem 0 2.4rem;
  border-bottom: 1px solid var(--line);
}

.project-index,
.project-meta {
  margin: 0;
  color: var(--muted);
}

.project-copy h3 {
  margin-bottom: 0.65rem;
  font-size: clamp(1.55rem, 2.4vw, 2.35rem);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.2;
}

.project-copy h3 a {
  text-decoration-color: transparent;
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.3rem;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}

.project-copy h3 a:hover,
.project-copy h3 a:focus-visible {
  color: var(--accent);
  text-decoration-color: currentColor;
}

.project-copy > p {
  max-width: 42rem;
  margin-bottom: 0;
  color: var(--muted);
}

.project-copy .inline-link {
  margin-top: 1.25rem;
  color: var(--accent);
}

.project-link span {
  transform: translateY(-1px);
}

.project-meta {
  justify-self: end;
  text-align: right;
  line-height: 1.8;
}

.lab-section {
  display: block;
}

.lab-heading {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: clamp(4rem, 7vw, 6rem);
}

.section-intro {
  max-width: 32rem;
  margin: 0;
  align-self: end;
  color: var(--muted);
  font-size: 1.08rem;
}

.lab-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ink);
  list-style: none;
}

.lab-item {
  position: relative;
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr) 9rem;
  gap: 1.5rem;
  align-items: center;
  min-height: 112px;
  border-bottom: 1px solid var(--line);
}

.lab-item.has-detail {
  transition: background 160ms ease;
}

.lab-item.has-detail:hover {
  background: var(--surface);
}

.lab-item.has-detail .lab-copy h3 a::after {
  position: absolute;
  inset: 0;
  content: "";
}

.lab-item.has-detail .lab-copy h3 a:focus-visible::after {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.lab-number,
.lab-copy h3,
.lab-copy p,
.status {
  margin-bottom: 0;
}

.lab-number,
.lab-copy p,
.status {
  color: var(--muted);
}

.lab-copy h3 {
  font-size: clamp(1.35rem, 2vw, 1.85rem);
  font-weight: 500;
  letter-spacing: -0.035em;
}

.lab-copy h3 a {
  text-decoration-color: transparent;
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.3rem;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}

.lab-copy h3 a:hover,
.lab-copy h3 a:focus-visible {
  color: var(--accent);
  text-decoration-color: currentColor;
}

.lab-copy p {
  margin-top: 0.35rem;
  font-family: "DM Mono", monospace;
  font-size: 0.78rem;
}

.status {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: 0.55rem;
}

.status span {
  width: 6px;
  height: 6px;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.is-live .status {
  color: var(--accent);
}

.is-live .status span {
  background: var(--accent);
}

.is-building .status span {
  background: var(--ink);
}

.about-section {
  display: block;
  min-height: 530px;
}

.home-page .about-section {
  width: 100%;
  padding-inline: max(3rem, calc((100vw - var(--content-width)) / 2));
  border-top: 0;
  background: var(--paper);
  color: var(--ink);
}

.home-page .contact-section {
  background: var(--surface);
}

.about-section .section-heading {
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.about-copy {
  display: block;
  width: 100%;
}

.about-copy p {
  margin-bottom: 0;
}

.about-lead {
  max-width: none;
  margin-bottom: 2rem !important;
  font-size: clamp(2rem, 3.6vw, 3.5rem);
  letter-spacing: -0.055em;
  line-height: 1.12;
}

.about-copy p:last-child {
  max-width: none;
  color: var(--muted);
  font-size: 1.05rem;
}

.contact-section {
  background: var(--surface);
  color: var(--ink);
  border: 0;
  margin-top: 3rem;
  padding-inline: max(3rem, calc((100vw - var(--content-width)) / 2));
  width: 100%;
}

.contact-section .eyebrow {
  color: var(--muted);
}

.contact-layout {
  display: block;
}

.contact-intro {
  max-width: 38rem;
  margin: 0 0 3.5rem;
  color: var(--muted);
  font-size: 1.08rem;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.25rem 2rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--ink);
}

.field-group {
  display: flex;
  flex-direction: column;
}

.field-group label {
  margin-bottom: 0.6rem;
  color: var(--muted);
}

.field-group input,
.field-group textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid #819187;
  border-radius: 0;
  outline: none;
  background: transparent;
  color: var(--ink);
  font: inherit;
}

.field-group input {
  height: 3.25rem;
}

.field-group textarea {
  min-height: 8.5rem;
  padding-top: 0.6rem;
  resize: vertical;
}

.field-group input:focus,
.field-group textarea:focus {
  border-color: var(--accent);
}

.field-group input[aria-invalid="true"],
.field-group textarea[aria-invalid="true"] {
  border-color: #dca99f;
}

.full-width {
  grid-column: 1 / -1;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-top: 1rem;
}

.form-footer button {
  display: inline-flex;
  align-items: center;
  gap: 2rem;
  min-height: 52px;
  padding: 0 1.25rem;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #f5f8f4;
  cursor: pointer;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.035em;
  text-transform: uppercase;
  transition: background 160ms ease, color 160ms ease;
}

.form-footer button:hover,
.form-footer button:focus-visible {
  background: transparent;
  color: var(--accent);
}

.form-note {
  max-width: 19rem;
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  text-align: right;
}

.form-status {
  min-height: 1.5rem;
  margin: 0;
  color: var(--accent);
  font-size: 0.9rem;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  padding: 2.25rem 0;
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  justify-self: end;
}

/* AWS Learning Lab detail pages */
.lab-page {
  width: min(calc(100% - 6rem), var(--content-width));
  margin-inline: auto;
  font-size: 0.94rem;
}

.lab-detail-hero {
  padding: clamp(3rem, 5vw, 4.5rem) 0 clamp(3.5rem, 6vw, 5rem);
}

.back-link {
  display: inline-flex;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--accent);
}

.lab-detail-heading {
  display: block;
}

.lab-detail-heading > div:last-child {
  max-width: 52rem;
  margin-top: 2rem;
}

.lab-detail-number,
.detail-status,
.service-list,
.detail-section-label,
.diagram-label,
.diagram-node small,
.detail-note strong {
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.lab-detail-number {
  margin-bottom: 1.25rem;
  color: var(--accent);
}

.lab-detail-hero h1 {
  max-width: none;
  margin-bottom: 0;
  font-size: clamp(2.5rem, 4.5vw, 4.6rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 1;
}

.lab-detail-summary {
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.3vw, 1.15rem);
}

.detail-status {
  display: flex;
  gap: 0.55rem;
  align-items: center;
  margin: 2rem 0 0;
  color: var(--accent);
}

.detail-status::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
}

.service-list {
  margin: 1.25rem 0 0;
  color: var(--ink);
  line-height: 1.8;
}

.detail-section {
  display: block;
  padding: clamp(3.5rem, 6vw, 5.5rem) 0;
  border-top: 1px solid var(--line);
}

.detail-section-label {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

.detail-content {
  max-width: 64rem;
}

.detail-content.wide {
  max-width: none;
}

.detail-content > h2 {
  max-width: 24ch;
  margin-bottom: 1.5rem;
  font-size: clamp(1.7rem, 2.7vw, 2.7rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1.12;
}

.detail-content > p {
  color: var(--muted);
  font-size: 0.96rem;
}

.detail-content > p:first-of-type {
  color: var(--ink);
  font-size: clamp(1.02rem, 1.5vw, 1.18rem);
  line-height: 1.5;
}

.detail-content h3 {
  margin: 2rem 0 0.65rem;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.build-steps,
.test-list,
.learning-list {
  margin: 2.25rem 0 0;
  padding: 0;
  border-top: 1px solid var(--ink);
  list-style: none;
}

.build-steps li,
.test-list li,
.learning-list li {
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  gap: 1.5rem;
  padding: 1.45rem 0;
  border-bottom: 1px solid var(--line);
}

.step-number {
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
}

.build-steps strong,
.test-list strong,
.learning-list strong {
  display: block;
  margin-bottom: 0.3rem;
  font-weight: 600;
}

.build-steps p,
.test-list p,
.learning-list p {
  margin: 0;
  color: var(--muted);
}

.detail-note {
  margin-top: 2.5rem;
  padding: 1.5rem;
  border-left: 3px solid var(--accent);
  background: var(--surface);
}

.detail-note strong {
  display: block;
  margin-bottom: 0.65rem;
  color: var(--accent);
}

.detail-note p {
  margin: 0;
}

.scope-note {
  margin-top: 1.75rem;
  background: var(--surface-strong);
}

.architecture-diagram {
  margin: 2.25rem 0 1.75rem;
  padding: clamp(1.25rem, 3vw, 2.5rem);
  border: 1px solid var(--line);
  background: var(--diagram-surface);
  overflow-x: auto;
}

.diagram-label {
  margin-bottom: 1.75rem;
  color: var(--muted);
}

.diagram-flow {
  display: flex;
  gap: 0.75rem;
  align-items: stretch;
  min-width: 680px;
}

.diagram-node {
  display: flex;
  flex: 1;
  min-height: 108px;
  padding: 1rem;
  border: 1px solid var(--line);
  background: var(--paper);
  flex-direction: column;
  justify-content: center;
}

.diagram-node.accent {
  border-color: var(--accent);
}

.diagram-node strong {
  display: block;
  font-size: 0.94rem;
  font-weight: 600;
}

.diagram-node small {
  display: block;
  margin-top: 0.4rem;
  color: var(--muted);
  font-size: 0.62rem;
  line-height: 1.45;
}

.diagram-arrow {
  display: grid;
  flex: 0 0 1.4rem;
  place-items: center;
  color: var(--accent);
  font-family: "DM Mono", monospace;
}

.diagram-caption {
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.tier-diagram {
  min-width: 760px;
}

.diagram-tier {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 1rem;
  align-items: stretch;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.diagram-tier:first-of-type {
  border-top: 0;
}

.tier-name {
  display: flex;
  align-items: center;
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.tier-nodes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.tier-nodes.single {
  grid-template-columns: 1fr;
}

.diagram-connection {
  margin-left: 10rem;
  color: var(--accent);
  font-family: "DM Mono", monospace;
  font-size: 0.7rem;
  text-align: center;
  text-transform: uppercase;
}

.diagram-support {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--line);
}

.lab-pagination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
}

.lab-pagination > a,
.lab-pagination > span {
  min-height: 88px;
  padding: 1.25rem 1.5rem;
}

.lab-pagination a {
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: background 160ms ease;
}

.lab-pagination a:last-child {
  border-left: 1px solid var(--line);
  text-align: right;
}

.lab-pagination a:hover,
.lab-pagination a:focus-visible {
  background: var(--surface);
}

.pagination-direction {
  margin-bottom: 0.45rem;
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.pagination-title {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 500;
}

@media (max-width: 900px) {
  .site-header,
  .hero,
  .section,
  .site-footer {
    width: min(calc(100% - 3rem), var(--content-width));
  }

  .lab-page {
    width: min(calc(100% - 3rem), var(--content-width));
  }

  .lab-detail-heading,
  .detail-section {
    display: block;
  }

  .lab-detail-heading {
    display: block;
  }

  .detail-section-label {
    margin-bottom: 1.25rem;
  }

  .hero {
    padding: 3rem 0 4.5rem;
  }

  .projects-page-hero,
  .aws-lab-index-hero {
    width: 100%;
    padding: 2.5rem 1.5rem 3.75rem;
  }

  .projects-index-intro {
    grid-template-columns: 1fr;
  }

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

  .project-list {
    margin-top: 2rem;
  }

  .about-copy,
  .contact-layout {
    display: block;
  }

  .contact-section {
    width: 100%;
    padding-inline: 1.5rem;
  }

  .projects-section {
    width: 100%;
    padding-inline: 1.5rem;
  }

  .home-page .about-section {
    width: 100%;
    padding-inline: 1.5rem;
  }
}

@media (max-width: 620px) {
  .site-header,
  .hero,
  .section,
  .site-footer {
    width: min(calc(100% - 2rem), var(--content-width));
  }

  .lab-page {
    width: min(calc(100% - 2rem), var(--content-width));
  }

  .lab-detail-hero h1 {
    font-size: clamp(2.35rem, 11vw, 3.4rem);
  }

  .back-link {
    margin-bottom: 3rem;
  }

  .build-steps li,
  .test-list li,
  .learning-list li {
    grid-template-columns: 2rem 1fr;
    gap: 1rem;
  }

  .lab-pagination {
    grid-template-columns: 1fr;
  }

  .lab-pagination > a,
  .lab-pagination > span {
    min-height: 80px;
    padding: 1rem;
  }

  .lab-pagination a:last-child {
    border-top: 1px solid var(--line);
    border-left: 0;
    text-align: left;
  }

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

  .site-nav {
    gap: 1rem;
    font-size: 0.66rem;
  }

  .site-nav a:nth-child(3) {
    display: none;
  }

  .hero {
    padding: 2.5rem 0 4rem;
  }

  .projects-page-hero,
  .aws-lab-index-hero {
    width: 100%;
    padding: 2.5rem 1rem 3.5rem;
  }

  .projects-index-intro h1 {
    font-size: clamp(3rem, 16vw, 4.8rem);
  }

  .hero-actions {
    flex-wrap: wrap;
  }

  .section {
    padding: 5rem 0;
  }

  .project-row {
    grid-template-columns: 2rem 1fr;
    padding: 1.6rem 0 2rem;
  }

  .project-meta {
    display: none;
  }

  .lab-heading {
    grid-template-columns: 1fr;
  }

  .lab-item {
    grid-template-columns: 2rem 1fr;
    gap: 1rem;
    padding: 1.5rem 0;
  }

  .status {
    grid-column: 2;
    justify-self: start;
  }

  .contact-section {
    width: 100%;
    padding-inline: 1rem;
  }

  .projects-section {
    width: 100%;
    padding-inline: 1rem;
  }

  .home-page .about-section {
    width: 100%;
    padding-inline: 1rem;
  }

  .contact-form {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contact-form > * {
    grid-column: 1;
  }

  .form-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .form-note {
    text-align: left;
  }

  .site-footer {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer p:nth-child(2) {
    display: none;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}