:root {
  --bg: #07080c;
  --fg: #e8ebe4;
  --muted: #8b9188;
  --line: rgba(232, 235, 228, 0.12);
  --accent: #7dffb3;
  --accent-2: #c8ff4d;
  --card: #101218;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "IBM Plex Sans", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  min-height: 100vh;
}

.noise,
.grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.grid-bg {
  background-image:
    linear-gradient(rgba(125, 255, 179, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125, 255, 179, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at top, black 30%, transparent 75%);
}

.noise {
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.nav,
main,
footer {
  position: relative;
  z-index: 1;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 8vw;
  position: sticky;
  top: 0;
  background: rgba(7, 8, 12, 0.78);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.logo {
  font-family: "Syne", sans-serif;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--fg);
  text-decoration: none;
  font-size: 18px;
}

.logo span {
  color: var(--accent);
}

.nav nav {
  display: flex;
  gap: 28px;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

.nav nav a:hover {
  color: var(--accent);
}

.hero {
  padding: 12vh 8vw 10vh;
  max-width: 1100px;
}

.kicker {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 24px;
}

h1 {
  font-family: "Syne", sans-serif;
  font-weight: 800;
  font-size: clamp(42px, 7vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.lead {
  margin-top: 28px;
  max-width: 560px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 22px;
  text-decoration: none;
  font-size: 14px;
  border: 1px solid var(--line);
  transition: 0.2s ease;
}

.btn.primary {
  background: var(--accent);
  color: #06140c;
  border-color: var(--accent);
  font-weight: 600;
}

.btn.primary:hover {
  background: var(--accent-2);
  border-color: var(--accent-2);
}

.btn.ghost {
  color: var(--fg);
}

.btn.ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 32px;
  list-style: none;
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.section {
  padding: 8vh 8vw;
  border-top: 1px solid var(--line);
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 36px;
}

.idx {
  font-family: "IBM Plex Mono", monospace;
  color: var(--accent);
  font-size: 13px;
}

h2 {
  font-family: "Syne", sans-serif;
  font-size: 28px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
}

.about-copy {
  color: var(--muted);
  font-size: 17px;
}

.skills {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.skills li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  color: var(--fg);
}

.skills span {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.16em;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 28px 24px 24px;
  min-height: 240px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.year {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--accent);
}

.card h3 {
  font-family: "Syne", sans-serif;
  font-size: 24px;
  margin: 16px 0 12px;
}

.card p {
  color: var(--muted);
  flex: 1;
}

.tags {
  margin-top: 20px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.contact-copy {
  color: var(--muted);
  margin-bottom: 20px;
}

.mail {
  font-family: "Syne", sans-serif;
  font-size: clamp(28px, 5vw, 48px);
  color: var(--fg);
  text-decoration: none;
  border-bottom: 2px solid var(--accent);
}

.mail:hover {
  color: var(--accent);
}

.social {
  display: flex;
  gap: 24px;
  margin-top: 32px;
}

.social a {
  color: var(--muted);
  text-decoration: none;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
}

.social a:hover {
  color: var(--accent);
}

footer {
  display: flex;
  justify-content: space-between;
  padding: 24px 8vw 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
}

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

  .nav nav {
    gap: 16px;
  }

  .hero {
    padding-top: 8vh;
  }
}