:root {
  --bg: #0b0f14;
  --surface: #121821;
  --surface-2: #171f2a;
  --text: #eef2f6;
  --muted: #9aa7b5;
  --line: #27313d;
  --accent: #a7f3d0;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  max-width: var(--max);
  margin: 0 auto;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}
.brand { font-family: "DM Mono", monospace; font-size: 1.15rem; font-weight: 500; }
.brand span { color: var(--accent); }
nav { display: flex; gap: 24px; }
nav a { color: var(--muted); font-size: .92rem; transition: color .2s ease; }
nav a:hover { color: var(--text); }
.language-switcher { display: inline-flex; align-items: center; gap: 5px; color: var(--line); font-family: "DM Mono", monospace; font-size: .78rem; }
.language-switcher button { padding: 0; border: 0; background: none; color: var(--muted); font: inherit; cursor: pointer; }
.language-switcher button:hover, .language-switcher button[aria-pressed="true"] { color: var(--accent); }
main, footer { max-width: var(--max); margin: 0 auto; padding-inline: 28px; }
.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: 1.35fr .65fr;
  gap: 72px;
  align-items: center;
  padding-block: 80px;
}
.eyebrow, .section-label {
  font-family: "DM Mono", monospace;
  color: var(--accent);
  font-size: .78rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}
h1 { font-size: clamp(2.6rem, 5vw, 5rem); line-height: 1.02; letter-spacing: -.05em; margin: 18px 0 28px; max-width: 920px; }
h2 { font-size: clamp(2rem, 4vw, 4rem); line-height: 1.08; letter-spacing: -.045em; margin: 16px 0; }
h3 { font-size: 1.35rem; margin: 0 0 10px; }
.hero-text { color: var(--muted); font-size: clamp(1rem, 1.5vw, 1.2rem); max-width: 720px; }
.hero-actions { display: flex; gap: 12px; margin-top: 34px; flex-wrap: wrap; }
.button { padding: 13px 19px; border: 1px solid var(--line); font-weight: 600; font-size: .92rem; }
.button.primary { background: var(--accent); color: #07110d; border-color: var(--accent); }
.button.secondary:hover { border-color: var(--muted); }
.socials { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 28px; color: var(--muted); font-size: .9rem; }
.socials a:hover, .copy-email:hover { color: var(--text); }
.copy-email { display: inline-flex; align-items: center; gap: 7px; padding: 0; border: 0; background: none; color: inherit; font: inherit; cursor: pointer; }
.copy-email svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.portrait-frame { aspect-ratio: 4 / 5; overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.portrait { width: 100%; height: 100%; object-fit: cover; object-position: 52% 35%; filter: saturate(.75) contrast(1.05); }
.status { display: inline-flex; align-items: center; gap: 9px; color: var(--muted); font-size: .82rem; margin-top: 15px; }
.status:hover { color: var(--text); }
.status i { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px rgba(167,243,208,.08); }
.section { padding-block: 120px; border-top: 1px solid var(--line); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; }
.body-copy { color: var(--muted); font-size: 1.08rem; padding-top: 26px; }
.body-copy p:first-child { margin-top: 0; }
.skill-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); margin-top: 44px; }
.skill-grid article { padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); min-height: 150px; }
.skill-grid span { font-family: "DM Mono", monospace; color: var(--accent); font-size: .78rem; text-transform: uppercase; }
.skill-grid p { margin: 18px 0 0; color: var(--muted); }
.timeline { margin-top: 54px; }
.role { display: grid; grid-template-columns: .42fr 1fr; gap: 70px; padding: 34px 0; border-top: 1px solid var(--line); }
.role:last-child { border-bottom: 1px solid var(--line); }
.role-meta { display: flex; flex-direction: column; color: var(--muted); font-family: "DM Mono", monospace; font-size: .8rem; gap: 5px; }
.role p { color: var(--muted); margin: 0; max-width: 680px; }
.project-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 44px; }
.project-card { background: var(--surface); border: 1px solid var(--line); padding: 30px; min-height: 340px; display: flex; flex-direction: column; transition: transform .2s ease, border-color .2s ease; }
.project-card:hover { transform: translateY(-4px); border-color: #485565; }
.project-card > div { display: flex; justify-content: space-between; color: var(--muted); font-family: "DM Mono", monospace; font-size: .76rem; }
.project-card h3 { font-size: 1.8rem; margin-top: 70px; }
.project-card p { color: var(--muted); }
.project-card ul { list-style: none; padding: 0; margin: auto 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.project-card li { border: 1px solid var(--line); padding: 5px 9px; color: var(--muted); font-size: .78rem; }
.education { display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px; }
.education h2 { font-size: 1.45rem; letter-spacing: -.02em; }
.education p:last-child { color: var(--muted); }
.contact { text-align: center; padding-block: 150px; }
.contact h2 { font-size: clamp(2.8rem, 7vw, 6rem); }
.contact > a { display: inline-block; margin-top: 24px; font-family: "DM Mono", monospace; color: var(--accent); border-bottom: 1px solid var(--accent); }
footer { border-top: 1px solid var(--line); padding-block: 28px 40px; display: flex; justify-content: space-between; color: var(--muted); font-size: .8rem; }
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; min-height: auto; gap: 50px; }
  .portrait-wrap { max-width: 380px; }
  .split, .role { grid-template-columns: 1fr; gap: 24px; }
  .skill-grid { grid-template-columns: repeat(2, 1fr); }
  .education { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .site-header, main, footer { padding-inline: 18px; }
  nav { gap: 14px; }
  nav a:nth-child(-n+3) { display: none; }
  h1 { font-size: clamp(2.7rem, 14vw, 4.6rem); }
  .section { padding-block: 84px; }
  .skill-grid, .project-grid { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}