:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-soft: #eef3f8;
  --surface-warm: #fff7ed;
  --surface-cool: #edf7f6;
  --text: #172033;
  --muted: #5d6b7d;
  --line: #d9e0e8;
  --primary: #0f766e;
  --primary-strong: #115e59;
  --accent: #b45309;
  --blue: #1d4ed8;
  --shadow: 0 18px 50px rgba(23, 32, 51, 0.08);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, #ffffff 0, #f4f8fb 460px, var(--bg) 760px),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
}

.skip-link {
  left: 1rem;
  padding: 0.6rem 0.8rem;
  position: fixed;
  top: -4rem;
  z-index: 20;
  background: var(--text);
  color: #fff;
  border-radius: 6px;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(247, 248, 251, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.nav-links a {
  text-decoration: none;
}

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

main,
.site-footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: min(760px, calc(100vh - 68px));
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  gap: 2.4rem;
  align-items: center;
  padding: 4rem 0 2.75rem;
}

.hero-copy {
  max-width: 660px;
  position: relative;
}

.hero-copy::before {
  content: "";
  width: 56px;
  height: 6px;
  display: block;
  margin-bottom: 1.4rem;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 999px;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 620px;
  margin-bottom: 1rem;
  font-size: clamp(2.45rem, 5.2vw, 4.15rem);
  line-height: 1.03;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.75rem;
  font-size: 1.15rem;
  line-height: 1.3;
}

.hero-summary {
  max-width: 600px;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.35rem 0 1.5rem;
}

.hero-chips span {
  padding: 0.38rem 0.62rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--primary-strong);
  font-size: 0.86rem;
  font-weight: 800;
}

.action-row,
.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.68rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 7px;
  font-weight: 750;
  text-decoration: none;
  transition:
    background 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

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

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

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--primary-strong);
}

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

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--primary);
  color: var(--primary-strong);
}

.profile-panel {
  width: 100%;
  max-width: 440px;
  justify-self: end;
  display: grid;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}

.profile-panel::before {
  content: "";
  height: 5px;
  background: linear-gradient(90deg, var(--primary), var(--blue), var(--accent));
}

.profile-panel > div {
  padding: 1.35rem;
  border-bottom: 1px solid var(--line);
}

.profile-panel > div:last-child {
  border-bottom: 0;
}

.profile-card-top {
  display: flex;
  gap: 1rem;
  align-items: center;
  background: linear-gradient(135deg, var(--surface-cool), var(--surface-warm));
}

#profile-avatar {
  width: 76px;
  height: 76px;
  flex: 0 0 auto;
  border: 3px solid #fff;
  border-radius: 18px;
  object-fit: cover;
  box-shadow: 0 10px 24px rgba(23, 32, 51, 0.14);
}

.stat-value,
.stat-label {
  display: block;
}

.stat-value {
  margin-bottom: 0.2rem;
  font-size: 1.55rem;
  font-weight: 850;
  line-height: 1.15;
}

.stat-label {
  color: var(--muted);
  font-size: 0.92rem;
}

.github-mini {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  padding: 0;
}

.mini-stat {
  padding: 1.1rem 0.75rem;
  border-right: 1px solid var(--line);
  text-align: center;
}

.mini-stat:last-child {
  border-right: 0;
}

.mini-value,
.mini-label {
  display: block;
}

.mini-value {
  font-size: 1.35rem;
  font-weight: 850;
  line-height: 1.1;
}

.mini-label {
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
  text-transform: uppercase;
}

.section {
  padding: 4.5rem 0;
  border-top: 1px solid var(--line);
}

.about-section {
  padding: 3rem 0 4rem;
  border-top: 1px solid var(--line);
}

.about-section .section-heading {
  max-width: 760px;
}

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

.about-card {
  min-height: 210px;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 32px rgba(23, 32, 51, 0.05);
}

.about-card h3 {
  margin-bottom: 0.85rem;
}

.about-card p {
  color: var(--muted);
}

.section-tight {
  padding-top: 2.5rem;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 1.6rem;
}

.logo-mark {
  width: 48px;
  height: 48px;
  flex: 0 0 48px;
  border-radius: 12px;
  object-fit: contain;
}

.logo-mark-brand {
  width: 108px;
  height: 48px;
  flex-basis: 108px;
  border-radius: 0;
}

.card-eyebrow,
.card-meta {
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 850;
  text-transform: uppercase;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1rem;
}

.project-card,
.skill-card,
.timeline-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.project-card {
  grid-column: span 3;
  min-height: 100%;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  box-shadow: 0 12px 36px rgba(23, 32, 51, 0.05);
}

.project-card-featured {
  grid-column: span 6;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  column-gap: 1.4rem;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.08), rgba(180, 83, 9, 0.08)),
    var(--surface);
}

.project-card-featured .card-header,
.project-card-featured .project-description,
.project-card-featured .tag-list,
.project-card-featured .card-meta,
.project-card-featured .card-actions {
  grid-column: 1;
}

.project-card-featured .highlight-list {
  grid-column: 2;
  grid-row: 1 / span 5;
  align-self: center;
  margin: 0;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.card-header {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  margin-bottom: 0.9rem;
}

.card-title-block {
  min-width: 0;
}

.card-eyebrow {
  margin-bottom: 0.25rem;
}

.project-description {
  color: var(--muted);
}

.tag-list,
.highlight-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tag-list li {
  padding: 0.28rem 0.55rem;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 700;
}

.tag-list-muted li {
  background: transparent;
}

.highlight-list {
  display: grid;
  gap: 0.5rem;
  margin: 0.35rem 0 1.25rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.highlight-list li {
  position: relative;
  padding-left: 1rem;
}

.highlight-list li::before {
  content: "";
  width: 0.38rem;
  height: 0.38rem;
  position: absolute;
  left: 0;
  top: 0.65rem;
  background: var(--primary);
  border-radius: 50%;
}

.card-actions {
  margin-top: auto;
}

.card-meta {
  margin-top: auto;
  margin-bottom: 0.85rem;
  color: var(--muted);
}

.card-actions .button {
  min-height: 38px;
  padding: 0.48rem 0.7rem;
  font-size: 0.88rem;
}

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

.skill-card {
  padding: 1.25rem;
  box-shadow: 0 12px 32px rgba(23, 32, 51, 0.04);
}

.timeline {
  display: grid;
  gap: 1rem;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px;
  width: 1px;
  background: var(--line);
}

.timeline-item {
  padding: 1.25rem;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 1rem;
  position: relative;
  z-index: 1;
  box-shadow: 0 12px 32px rgba(23, 32, 51, 0.04);
}

.timeline-item-brand {
  grid-template-columns: 108px minmax(0, 1fr);
}

.timeline-item .logo-mark {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 0.35rem;
}

.timeline-item .logo-mark-brand {
  padding: 0.45rem 0.55rem;
}

.timeline-period {
  margin-bottom: 0.35rem;
  color: var(--accent);
  font-size: 0.86rem;
  font-weight: 800;
}

.timeline-org {
  margin-bottom: 0.6rem;
  color: var(--muted);
  font-weight: 700;
}

.contact-section {
  margin: 4rem 0 2rem;
  padding: 2rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  background: var(--text);
  color: #fff;
  border-radius: 8px;
}

.contact-section p {
  max-width: 620px;
  color: #d5dce6;
}

.contact-section .eyebrow {
  color: #fbbf24;
}

.contact-section .button-secondary {
  background: transparent;
  color: #fff;
}

.site-footer {
  padding: 2rem 0 3rem;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.94rem;
}

:focus-visible {
  outline: 3px solid rgba(15, 118, 110, 0.35);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

@media (max-width: 860px) {
  .hero,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .project-grid,
  .skills-grid,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .project-card,
  .project-card-featured {
    grid-column: span 1;
  }

  .project-card-featured {
    display: flex;
  }

  .project-card-featured .highlight-list {
    padding: 0;
    background: transparent;
    border: 0;
  }
}

@media (min-width: 861px) and (max-width: 1080px) {
  .skills-grid,
  .about-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .nav {
    min-height: auto;
    padding: 1rem 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  .hero {
    gap: 1.2rem;
    padding-top: 2rem;
  }

  h1 {
    font-size: 2rem;
    line-height: 1.08;
  }

  .hero-summary {
    font-size: 0.98rem;
  }

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

  .profile-panel::before {
    grid-column: 1 / -1;
  }

  .profile-panel > div {
    padding: 1rem;
  }

  .profile-card-top,
  .github-mini {
    grid-column: 1 / -1;
  }

  #profile-avatar {
    width: 60px;
    height: 60px;
    border-radius: 14px;
  }

  .stat-value {
    font-size: 1.05rem;
  }

  .github-mini {
    grid-template-columns: repeat(3, 1fr);
  }

  .button {
    width: auto;
    min-width: 104px;
  }

  .hero .action-row {
    gap: 0.55rem;
  }

  .card-actions .button {
    width: auto;
  }

  .logo-mark-brand {
    width: 88px;
    flex-basis: 88px;
  }

  .contact-section {
    padding: 1.35rem;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .timeline::before {
    display: none;
  }

  .site-footer {
    flex-direction: column;
    gap: 0.35rem;
  }
}