:root {
  --bg: #0b0e14;
  --bg-alt: #10141d;
  --card: #141926;
  --card-border: #232a3a;
  --text: #e6e9f0;
  --text-dim: #9aa4b7;
  --accent: #5eead4;
  --accent-dim: #2dd4bf;
  --accent-soft: rgba(94, 234, 212, 0.12);
  --max-width: 960px;
  --radius: 14px;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent-soft);
  color: var(--accent);
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover, a:focus-visible {
  color: var(--text);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(11, 14, 20, 0.75);
  border-bottom: 1px solid var(--card-border);
}
.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.site-nav .brand {
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
}
.site-nav .brand:hover { color: var(--accent); }
.site-nav ul {
  display: flex;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav ul li a {
  color: var(--text-dim);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s ease;
}
.site-nav ul li a.active,
.site-nav ul li a:hover {
  color: var(--accent);
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--card-border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 120px 0 90px;
  text-align: center;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 480px;
  background: radial-gradient(closest-side, rgba(94, 234, 212, 0.18), transparent 70%),
              radial-gradient(closest-side, rgba(129, 140, 248, 0.14), transparent 70%);
  background-position: 20% 0%, 80% 20%;
  background-repeat: no-repeat;
  background-size: 60% 100%, 55% 100%;
  filter: blur(10px);
  animation: drift 18s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes drift {
  from { transform: translateY(0) scale(1); }
  to { transform: translateY(20px) scale(1.05); }
}
.hero-content { position: relative; }
.eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  margin: 0 0 10px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.hero .role {
  font-size: clamp(1.1rem, 2.4vw, 1.35rem);
  color: var(--text-dim);
  margin: 0 0 8px;
}
.hero .location {
  font-size: 0.95rem;
  color: var(--text-dim);
  margin: 0 0 28px;
}
.hero .location .dot {
  margin: 0 8px;
  color: var(--card-border);
}

.social-row {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}
.icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--card-border);
  background: var(--card);
  color: var(--text-dim);
  transition: all 0.2s ease;
}
.icon-link svg { width: 18px; height: 18px; fill: currentColor; }
.icon-link:hover, .icon-link:focus-visible {
  color: var(--accent);
  border-color: var(--accent-dim);
  transform: translateY(-2px);
  background: var(--accent-soft);
}

/* Sections */
section {
  padding: 80px 0;
  border-top: 1px solid var(--card-border);
}
.hero { border-top: none; }

.section-head {
  margin-bottom: 40px;
}
.section-tag {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin: 0;
  letter-spacing: -0.01em;
}
.section-lede {
  color: var(--text-dim);
  max-width: 640px;
  margin-top: 12px;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* About */
.about-text p {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 720px;
}
.about-text p + p { margin-top: 16px; }
.about-text strong { color: var(--text); font-weight: 600; }

/* Experience */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.job-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.job-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}
.job-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}
.job-head h3 {
  margin: 0;
  font-size: 1.15rem;
}
.job-head .period {
  font-size: 0.85rem;
  color: var(--text-dim);
  white-space: nowrap;
}
.job-org {
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 14px;
}
.job-card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--text-dim);
}
.job-card li + li { margin-top: 8px; }
.job-card li strong { color: var(--text); font-weight: 600; }

.earlier-role {
  color: var(--text-dim);
  font-size: 0.95rem;
  border-top: 1px dashed var(--card-border);
  padding-top: 20px;
  margin-top: 4px;
}
.earlier-role strong { color: var(--text); }

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.skill-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 22px;
}
.skill-card h3 {
  margin: 0 0 14px;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
}
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.tag-list li {
  font-size: 0.85rem;
  background: var(--bg-alt);
  border: 1px solid var(--card-border);
  color: var(--text-dim);
  padding: 5px 12px;
  border-radius: 999px;
}

/* Certifications */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.cert-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.cert-card .cert-icon {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}
.cert-card .cert-icon svg { width: 20px; height: 20px; fill: currentColor; }
.cert-card h4 { margin: 0; font-size: 0.95rem; }
.cert-card span { color: var(--text-dim); font-size: 0.82rem; }

.education-line {
  color: var(--text-dim);
  font-size: 0.95rem;
  border-top: 1px dashed var(--card-border);
  padding-top: 20px;
}
.education-line strong { color: var(--text); }

/* Beyond code */
.beyond-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.beyond-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 26px;
}
.beyond-card .emoji {
  font-size: 1.6rem;
  margin-bottom: 12px;
  display: block;
}
.beyond-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}
.beyond-card p {
  color: var(--text-dim);
  margin: 0;
  font-size: 0.95rem;
}
.beyond-card.side-business a.inline-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-weight: 600;
  font-size: 0.9rem;
}

/* Footer */
.site-footer {
  padding: 60px 0 40px;
  text-align: center;
  border-top: 1px solid var(--card-border);
}
.site-footer .footer-cta {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.site-footer .footer-email {
  font-size: 1.05rem;
}
.site-footer .social-row {
  margin: 26px 0 28px;
}
.site-footer .copyright {
  color: var(--text-dim);
  font-size: 0.85rem;
}

@media (max-width: 640px) {
  .site-nav ul {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--card-border);
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
    display: none;
  }
  .site-nav ul.open { display: flex; }
  .site-nav ul li a {
    display: block;
    padding: 12px 24px;
  }
  .nav-toggle { display: inline-flex; }
  .hero { padding: 100px 0 70px; }
  section { padding: 60px 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero::before { animation: none; }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}