:root {
  --surface: #f7f9fb;
  --surface-lowest: #ffffff;
  --surface-low: #f2f4f6;
  --surface-mid: #e6e8ea;
  --surface-high: #e0e3e5;
  --text: #191c1e;
  --muted: #43474f;
  --outline: #c3c6d1;
  --outline-strong: #737780;
  --primary: #001e40;
  --primary-mid: #003366;
  --primary-soft: #d5e3ff;
  --secondary: #00696e;
  --cyan: #00dce5;
  --green: #10b981;
  --gold: #b7791f;
  --danger: #ba1a1a;
  --shadow-1: 0 4px 12px rgba(0, 30, 64, 0.04);
  --shadow-2: 0 12px 24px rgba(0, 30, 64, 0.08);
  --container: 1280px;
  --gutter: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--surface);
  background-image:
    linear-gradient(to right, rgba(0, 30, 64, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 30, 64, 0.045) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--text);
  font-family: Inter, "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.material-symbols-outlined {
  font-family: "Material Symbols Outlined";
  font-weight: normal;
  font-style: normal;
  font-size: 22px;
  line-height: 1;
  display: inline-block;
  white-space: nowrap;
  direction: ltr;
  font-feature-settings: "liga";
  -webkit-font-feature-settings: "liga";
  -webkit-font-smoothing: antialiased;
}

.container {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(247, 249, 251, 0.94);
  background-image:
    linear-gradient(to right, rgba(0, 30, 64, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 30, 64, 0.035) 1px, transparent 1px);
  background-size: 24px 24px;
  border-bottom: 1px solid var(--outline);
  backdrop-filter: blur(12px);
}

.nav-shell {
  width: min(100% - 32px, var(--container));
  height: 66px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 210px;
  color: var(--primary);
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--primary);
  border-radius: 8px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  font-weight: 700;
  background: var(--surface-lowest);
}

.brand-mark .material-symbols-outlined {
  font-size: 24px;
}

.brand-text {
  white-space: nowrap;
}

.brand strong {
  display: block;
}

.brand strong {
  font-size: 18px;
  line-height: 1.15;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.2;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex: 1;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  height: 66px;
  padding: 0 10px;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  font-size: 14px;
  transition: color 160ms ease, background 160ms ease, border-color 160ms ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--primary);
  background: var(--surface-low);
  border-bottom-color: var(--primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  min-width: 190px;
}

.icon-button,
.mobile-toggle {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  transition: color 160ms ease, background 160ms ease, border-color 160ms ease;
}

.icon-button:hover,
.mobile-toggle:hover {
  color: var(--primary);
  background: var(--surface-low);
  border-color: var(--outline);
}

.mobile-toggle {
  display: none;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid var(--primary);
  font-weight: 700;
  font-size: 14px;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--primary);
  color: #ffffff;
}

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

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

.button-secondary:hover {
  background: var(--primary-soft);
}

.button-compact {
  min-height: 38px;
  padding: 8px 14px;
}

.section {
  padding: 72px 0;
}

.section-grid {
  position: relative;
  overflow: hidden;
}

.section-grid::before {
  content: none;
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(0, 30, 64, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 30, 64, 0.045) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.section-grid > * {
  position: relative;
}

.hero {
  padding: 84px 0 64px;
  border-bottom: 1px solid var(--outline);
  background: transparent;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 360px);
  grid-template-areas:
    "copy media"
    "stats stats";
  column-gap: 48px;
  row-gap: 18px;
  align-items: stretch;
}

.hero-copy {
  grid-area: copy;
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--primary);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  font-weight: 600;
}

.hero h1,
.section-heading h2,
.contact-section h2 {
  margin: 0;
  color: var(--primary);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: 0;
}

.hero h1 {
  font-size: 56px;
}

.hero-school {
  margin: 10px 0 0;
  color: var(--text);
  font-size: 28px;
  font-weight: 700;
}

.hero-lead {
  max-width: 720px;
  margin: 24px 0 0;
  padding-left: 18px;
  border-left: 4px solid var(--primary);
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-media {
  grid-area: media;
  display: flex;
  justify-content: flex-end;
  align-items: stretch;
}

.portrait-frame {
  width: min(360px, 100%);
  min-height: 360px;
  height: 100%;
  margin-left: auto;
  overflow: hidden;
  border: 1px solid var(--outline);
  border-radius: 8px;
  background: var(--surface-lowest);
  box-shadow: var(--shadow-1);
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.stat-strip {
  grid-area: stats;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.stat-strip article,
.document-card,
.publication-card,
.project-card,
.role-card,
.honor-grid article,
.skill-panel,
.contact-list a {
  background: var(--surface-lowest);
  border: 1px solid var(--outline);
  border-radius: 8px;
  box-shadow: var(--shadow-1);
}

.stat-strip article {
  min-height: 116px;
  padding: 18px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 4px;
}

.stat-strip .material-symbols-outlined {
  color: var(--primary-mid);
  font-size: 26px;
}

.stat-strip strong {
  color: var(--primary);
  font-size: 24px;
  line-height: 1.1;
}

.stat-strip small {
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
}

.section-heading {
  max-width: 740px;
  margin-bottom: 28px;
}

.section-heading.wide {
  max-width: 100%;
}

.section-heading h2,
.contact-section h2 {
  font-size: 40px;
}

.section-heading p:not(.eyebrow),
.contact-section p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.document-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.document-card {
  overflow: hidden;
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  min-height: 180px;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.document-card:hover,
.project-card:hover,
.role-card:hover,
.publication-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: var(--shadow-2);
}

.document-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--surface-low);
  border-right: 1px solid var(--outline);
}

.document-card div {
  padding: 18px;
}

.document-card h3,
.project-card h3,
.role-card h3,
.publication-card h3,
.award-card h4,
.honor-grid h3 {
  margin: 0;
  color: var(--primary);
  line-height: 1.25;
}

.document-card p,
.project-card p,
.role-card p,
.publication-card p,
.award-card p,
.honor-grid p {
  color: var(--muted);
}

.document-card a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  color: var(--primary);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  font-weight: 600;
}

.research-layout {
  display: grid;
  gap: 18px;
}

.research-row {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 28px;
  align-items: stretch;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  position: relative;
  min-height: 100%;
  padding: 24px 0 24px 28px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 28px;
  bottom: -20px;
  width: 1px;
  background: var(--outline);
}

.research-row:last-child .timeline-item::before {
  display: none;
}

.timeline-item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--green);
  border: 3px solid var(--surface);
}

.timeline-item > span,
.award-card span,
.venue,
.project-type {
  display: inline-flex;
  color: var(--primary-mid);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  font-weight: 700;
}

.timeline-item h3 {
  margin: 4px 0 6px;
  color: var(--primary);
}

.timeline-item p {
  margin: 0;
  color: var(--muted);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.chip-row span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 9px;
  border: 1px solid var(--outline);
  border-radius: 8px;
  background: var(--surface-low);
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
}

.publication-list {
  display: grid;
  gap: 18px;
}

.publication-card {
  padding: 24px;
  height: 100%;
}

.publication-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

.publication-head strong {
  align-self: flex-start;
  flex: 0 0 auto;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--primary-soft);
  color: var(--primary);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
}

.publication-card p {
  margin: 14px 0 0;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.small-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 7px 12px;
  border: 1px solid var(--primary);
  border-radius: 8px;
  background: var(--primary);
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
}

.small-action.ghost {
  background: var(--surface-lowest);
  color: var(--primary);
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.project-card {
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(280px, 0.42fr) minmax(0, 0.58fr);
  min-height: 260px;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

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

.project-horizontal {
  grid-column: auto;
}

.project-card img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  background: var(--surface-low);
  border-right: 1px solid var(--outline);
}

.project-featured img {
  height: 100%;
}

.project-horizontal img {
  height: 100%;
  min-height: 260px;
}

.project-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.project-type {
  margin: 0 0 8px;
  color: var(--secondary, var(--primary-mid));
}

.project-card p:not(.project-type) {
  margin: 12px 0 0;
}

.project-awards {
  display: grid;
  gap: 8px;
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid var(--outline);
  border-radius: 8px;
  background: var(--surface-low);
}

.project-awards strong {
  color: var(--primary);
  font-size: 14px;
}

.project-awards span {
  position: relative;
  padding-left: 16px;
  color: var(--muted);
  font-size: 14px;
}

.project-awards span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}

.leadership-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.role-card {
  padding: 24px;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.role-card:nth-child(-n + 2) {
  grid-column: span 2;
}

.role-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.role-head .material-symbols-outlined {
  color: var(--primary);
  font-size: 32px;
}

.role-head strong {
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
}

.lined-list {
  margin: 16px 0 0;
  padding: 0 0 0 18px;
  list-style: none;
  border-left: 1px solid var(--outline);
}

.lined-list li {
  position: relative;
  margin: 12px 0;
  color: var(--muted);
}

.lined-list li::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.role-card.practice p {
  margin-bottom: 0;
}

.social-practice-card {
  grid-column: span 3;
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(320px, 1.14fr);
  column-gap: 24px;
  align-items: start;
}

.social-practice-card .role-head,
.social-practice-card h3,
.social-practice-card p {
  grid-column: 1;
}

.certificate-placeholders {
  grid-column: 2;
  grid-row: 1 / span 3;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.certificate-placeholders div {
  min-height: 190px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
  padding: 14px;
  border: 1px dashed var(--outline-strong);
  border-radius: 8px;
  background: var(--surface-low);
  color: var(--muted);
  text-align: center;
}

.certificate-placeholders .material-symbols-outlined {
  color: var(--primary-mid);
  font-size: 34px;
}

.certificate-placeholders strong {
  color: var(--primary);
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
}

.award-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 32px;
  padding: 28px;
  border: 1px solid var(--outline);
  border-radius: 8px;
  background: var(--surface-lowest);
  box-shadow: var(--shadow-1);
}

.award-column {
  display: grid;
  align-content: start;
  gap: 0;
}

.award-column h3 {
  margin: 0 0 10px;
  color: var(--primary);
  font-size: 24px;
}

.award-card {
  position: relative;
  padding: 16px 0 18px 28px;
  border-bottom: 1px solid var(--outline);
  background: var(--surface-lowest);
  box-shadow: none;
}

.award-card.accent {
  border-left: 0;
}

.award-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.award-card.accent::before {
  background: var(--cyan);
}

.award-card h4 {
  margin-top: 8px;
}

.award-card p {
  margin-bottom: 0;
}

.honor-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.honor-grid article {
  padding: 22px;
  text-align: center;
}

.honor-grid .material-symbols-outlined {
  color: var(--primary-mid);
  font-size: 32px;
  margin-bottom: 8px;
}

.honor-grid p {
  margin: 6px 0 0;
  font-size: 14px;
}

.skills-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.skill-tabs {
  display: grid;
  gap: 12px;
}

.skill-tab {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 62px;
  padding: 14px 16px;
  border: 1px solid var(--outline);
  border-radius: 8px;
  background: var(--surface-lowest);
  color: var(--primary);
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  box-shadow: var(--shadow-1);
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.skill-tab:hover,
.skill-tab.active {
  border-color: var(--primary);
  background: var(--primary);
  color: #ffffff;
}

.skill-panel {
  padding: 28px;
}

.skill-content[hidden] {
  display: none;
}

.skill-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--outline);
}

.skill-head .material-symbols-outlined {
  color: var(--primary);
  font-size: 38px;
}

.skill-head h3 {
  margin: 0;
  color: var(--primary);
  font-size: 30px;
  line-height: 1.2;
}

.skill-head p {
  margin: 6px 0 0;
  color: var(--muted);
}

.skill-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.76fr);
  gap: 28px;
  align-items: center;
  margin-top: 24px;
}

.skill-body img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  border: 1px solid var(--outline);
  border-radius: 8px;
  background: var(--surface-low);
}

.meter-list {
  display: grid;
  gap: 20px;
}

.meter {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding-bottom: 14px;
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 14px;
}

.meter::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 8px;
  border-radius: 8px;
  background: var(--surface-high);
}

.meter i {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 1;
  height: 8px;
  border-radius: 8px;
  background: var(--primary);
}

.meter strong {
  color: var(--primary);
}

.code-panel {
  margin-top: 24px;
  padding: 18px;
  border-radius: 8px;
  background: #111827;
  color: #d1fae5;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
}

.code-panel p {
  margin: 8px 0;
}

.code-panel strong {
  color: var(--green);
}

.contact-section {
  border-top: 1px solid var(--outline);
  background-color: rgba(242, 244, 246, 0.9);
  background-image:
    linear-gradient(to right, rgba(0, 30, 64, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 30, 64, 0.045) 1px, transparent 1px);
  background-size: 24px 24px;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.42fr);
  gap: 28px;
  align-items: center;
}

.contact-list {
  display: grid;
  gap: 12px;
}

.contact-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
  padding: 14px 16px;
  color: var(--primary);
  font-weight: 700;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.contact-list a:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: var(--shadow-2);
}

.site-footer {
  border-top: 1px solid var(--outline);
  background-color: rgba(224, 227, 229, 0.9);
  background-image:
    linear-gradient(to right, rgba(0, 30, 64, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 30, 64, 0.045) 1px, transparent 1px);
  background-size: 24px 24px;
}

.footer-layout {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.footer-layout strong {
  color: var(--primary);
}

.footer-layout p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.footer-layout nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
}

.footer-layout a:hover {
  color: var(--primary);
}

@media (max-width: 1120px) {
  .site-nav {
    gap: 0;
  }

  .site-nav a {
    padding: 0 9px;
    font-size: 14px;
  }

  .hero-layout,
  .research-layout,
  .award-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero-layout {
    grid-template-areas:
      "copy"
      "media"
      "stats";
  }

  .hero-copy {
    min-height: auto;
  }

  .hero-media {
    justify-content: flex-start;
  }

  .portrait-frame {
    width: min(420px, 100%);
    height: auto;
    min-height: 0;
    aspect-ratio: 1;
    margin: 0;
  }

  .research-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .document-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-card,
  .project-featured,
  .project-horizontal {
    grid-column: auto;
  }

  .leadership-grid,
  .honor-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .social-practice-card {
    grid-column: span 2;
    grid-template-columns: 1fr;
    row-gap: 18px;
  }

  .social-practice-card .role-head,
  .social-practice-card h3,
  .social-practice-card p,
  .certificate-placeholders {
    grid-column: 1;
  }

  .certificate-placeholders {
    grid-row: auto;
  }
}

@media (max-width: 900px) {
  .nav-shell {
    height: 64px;
  }

  .site-nav {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 72px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px;
    border: 1px solid var(--outline);
    border-radius: 8px;
    background: var(--surface-lowest);
    box-shadow: var(--shadow-2);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    height: 44px;
    border-bottom: 0;
    border-radius: 8px;
  }

  .mobile-toggle {
    display: inline-grid;
  }

  .button-compact,
  .nav-actions .icon-button {
    display: none;
  }

  .nav-actions {
    min-width: auto;
  }

  .hero {
    padding-top: 56px;
  }

  .hero-layout {
    gap: 30px;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero-school {
    font-size: 23px;
  }

  .section-heading h2,
  .contact-section h2 {
    font-size: 32px;
  }

  .skills-layout {
    grid-template-columns: 1fr;
  }

  .skill-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 680px) {
  .container,
  .nav-shell {
    width: min(100% - 24px, var(--container));
  }

  .brand {
    min-width: 0;
  }

  .brand strong {
    font-size: 17px;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero-school {
    font-size: 20px;
  }

  .hero-lead,
  .section-heading p:not(.eyebrow),
  .contact-section p {
    font-size: 16px;
  }

  .section {
    padding: 54px 0;
  }

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

  .button,
  .small-action {
    width: 100%;
  }

  .stat-strip,
  .document-grid,
  .leadership-grid,
  .honor-grid,
  .skill-tabs {
    grid-template-columns: 1fr;
  }

  .document-card {
    grid-template-columns: 128px minmax(0, 1fr);
    min-height: 160px;
  }

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

  .project-card img,
  .project-featured img,
  .project-horizontal img {
    height: 220px;
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--outline);
  }

  .role-card:nth-child(-n + 2) {
    grid-column: span 1;
  }

  .social-practice-card {
    grid-column: span 1;
  }

  .certificate-placeholders {
    grid-template-columns: 1fr;
  }

  .publication-head {
    flex-direction: column;
  }

  .footer-layout {
    padding: 18px 0;
    align-items: flex-start;
    flex-direction: column;
  }
}