:root {
  --bg: #f4f7f8;
  --surface: #ffffff;
  --surface-strong: #eef5f6;
  --ink: #132022;
  --muted: #5b686b;
  --line: #d8e2e4;
  --primary: #0f6f7a;
  --primary-dark: #0a4751;
  --accent: #b45f32;
  --accent-soft: #f6e6dd;
  --shadow: 0 22px 60px rgba(19, 32, 34, 0.12);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(135deg, rgba(15, 111, 122, 0.08), transparent 34rem),
    var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

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

ul {
  margin: 0;
  padding-left: 1.15rem;
}

li + li {
  margin-top: 0.42rem;
}

.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;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(244, 247, 248, 0.88);
  border-bottom: 1px solid rgba(216, 226, 228, 0.85);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(100% - 40px, var(--max));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  color: var(--primary-dark);
  font-weight: 850;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 750;
  padding: 10px 12px;
}

.language-switcher {
  border: 1px solid var(--line);
  border-radius: 999px;
  display: inline-flex;
  margin-left: 8px;
  padding: 3px;
}

.language-option {
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 850;
  line-height: 1;
  min-height: 32px;
  padding: 0 10px;
}

.language-option:hover,
.language-option:focus-visible,
.language-option.is-active {
  background: var(--primary);
  color: #ffffff;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: var(--surface-strong);
  color: var(--primary-dark);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
}

.nav-toggle span:not(.sr-only) {
  width: 18px;
  height: 2px;
  background: var(--ink);
  display: block;
  margin: 3px auto;
}

main {
  overflow: hidden;
}

.hero {
  width: min(100% - 40px, var(--max));
  min-height: calc(92vh - 72px);
  margin: 0 auto;
  padding: 72px 0 46px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 0.46fr);
  align-items: center;
  gap: 54px;
}

.hero-content {
  max-width: 780px;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  margin: 0 0 14px;
  text-transform: uppercase;
}

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

h1 {
  font-size: clamp(3.6rem, 12vw, 7.6rem);
  line-height: 0.88;
  letter-spacing: 0;
  margin-bottom: 28px;
}

h2 {
  font-size: clamp(2rem, 4.8vw, 3.8rem);
  line-height: 1;
  letter-spacing: 0;
  margin-bottom: 0;
}

h3 {
  font-size: 1.08rem;
  line-height: 1.28;
  margin-bottom: 10px;
}

.hero-copy {
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.36rem);
  max-width: 720px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  border: 1px solid transparent;
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 18px;
  font-weight: 820;
}

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

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

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

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

.hero-card,
.stat-card,
.skill-card,
.experience-card,
.project-card,
.info-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 38px rgba(19, 32, 34, 0.07);
}

.stats-section {
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
  padding: 0 0 40px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stat-card {
  min-height: 132px;
  padding: 22px;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: var(--primary);
}

.stat-card strong,
.stat-card span {
  display: block;
}

.stat-card strong {
  color: var(--primary-dark);
  font-size: clamp(1.5rem, 2.4vw, 2.2rem);
  line-height: 1.05;
  margin-bottom: 8px;
}

.stat-card span {
  color: var(--muted);
  font-weight: 780;
}

.hero-card {
  padding: 30px;
  box-shadow: var(--shadow);
}

.profile-photo {
  width: clamp(140px, 42vw, 180px);
  height: clamp(140px, 42vw, 180px);
  aspect-ratio: 1;
  border: 1px solid rgba(216, 226, 228, 0.95);
  border-radius: 50%;
  box-shadow: 0 14px 34px rgba(19, 32, 34, 0.14);
  display: block;
  margin-bottom: 24px;
  object-fit: cover;
}

.quick-facts {
  display: grid;
  gap: 20px;
  margin: 0;
}

.quick-facts div {
  border-left: 4px solid var(--primary);
  padding-left: 16px;
}

.quick-facts dt {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.quick-facts dd {
  font-weight: 720;
  margin: 0;
  overflow-wrap: anywhere;
}

.section,
.contact {
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
  padding: 82px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(220px, 0.34fr) minmax(0, 0.66fr);
  gap: 38px;
  margin-bottom: 42px;
}

.summary-copy {
  columns: 2 340px;
  column-gap: 44px;
  color: var(--muted);
  font-size: 1.08rem;
}

.summary-copy p {
  break-inside: avoid;
}

.muted-section {
  background: var(--surface-strong);
  border-radius: var(--radius);
  padding: 62px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.skill-card {
  min-height: 230px;
  padding: 24px;
}

.project-card {
  display: flex;
  flex-direction: column;
  min-height: 250px;
  padding: 24px;
}

.skill-card h3,
.project-card h3,
.info-card h3 {
  color: var(--primary-dark);
}

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

.project-card .tech-line {
  margin-top: auto;
}

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

.tag-list li {
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 720;
  margin-top: 0;
  padding: 7px 10px;
}

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

.experience-card {
  display: grid;
  grid-template-columns: minmax(240px, 0.36fr) minmax(0, 0.64fr);
  gap: 28px;
  padding: 28px;
}

.experience-meta {
  border-right: 1px solid var(--line);
  padding-right: 28px;
}

.experience-meta p {
  color: var(--muted);
  margin-bottom: 0;
}

.date-range {
  color: var(--accent) !important;
  font-size: 0.82rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  margin-bottom: 10px !important;
  text-transform: uppercase;
}

.experience-detail {
  color: var(--muted);
}

.tech-line {
  background: var(--accent-soft);
  border-radius: var(--radius);
  color: #6d351b;
  font-size: 0.92rem;
  font-weight: 760;
  margin: 20px 0 0;
  padding: 12px 14px;
}

.credential-section {
  padding-top: 72px;
}

.credential-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.info-card {
  padding: 24px;
}

.info-card li,
.info-card p,
.stacked-list span {
  color: var(--muted);
}

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

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

.stacked-list strong {
  margin-bottom: 4px;
}

.language-list p:last-child {
  margin-bottom: 0;
}

.contact {
  background: var(--ink);
  border-radius: var(--radius);
  color: #ffffff;
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(280px, 0.42fr);
  gap: 40px;
  margin-bottom: 72px;
  padding: 56px;
}

.contact h2 {
  font-size: clamp(2rem, 5vw, 3.55rem);
}

.contact-links {
  display: grid;
  gap: 12px;
  align-content: center;
}

.contact-links a {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  color: #ffffff;
  font-weight: 800;
  padding: 16px 18px;
  overflow-wrap: anywhere;
}

.contact-links a:hover,
.contact-links a:focus-visible {
  background: rgba(255, 255, 255, 0.16);
}

.footer {
  color: var(--muted);
  padding: 0 20px 36px;
  text-align: center;
}

.footer p {
  margin-bottom: 0;
}

@media (max-width: 980px) {
  .hero,
  .stats-section,
  .contact,
  .section-heading,
  .experience-card {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 56px;
  }

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

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

  .experience-meta {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 0 0 22px;
  }

  .muted-section,
  .contact {
    padding: 38px;
  }
}

@media (max-width: 700px) {
  .nav {
    width: min(100% - 28px, var(--max));
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    inset: 72px 14px auto 14px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: none;
    padding: 12px;
  }

  .nav-links.is-open {
    display: grid;
  }

  .nav-links a {
    border-radius: var(--radius);
    padding: 14px;
  }

  .language-switcher {
    border-radius: var(--radius);
    justify-content: stretch;
    margin-left: 0;
    margin-top: 6px;
  }

  .language-option {
    border-radius: calc(var(--radius) - 2px);
    flex: 1;
    min-height: 42px;
  }

  .hero,
  .stats-section,
  .section,
  .contact {
    width: min(100% - 28px, var(--max));
  }

  h1 {
    font-size: clamp(3.1rem, 19vw, 4.8rem);
  }

  .hero-card,
  .stat-card,
  .muted-section,
  .contact,
  .experience-card,
  .info-card,
  .project-card,
  .skill-card {
    padding: 24px;
  }

  .section,
  .contact {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .skills-grid,
  .stats-section,
  .project-grid,
  .credential-grid {
    grid-template-columns: 1fr;
  }
}