:root {
  --bg: #f7fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #6b7280;
  --accent: #2563eb;
  --radius: 12px;
  --container: 980px;
}
* { box-sizing: border-box; }
html,body { height: 100%; }
body { margin: 0; font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial; color: var(--text); background: var(--bg); line-height: 1.5; }
.container { max-width: var(--container); margin: 0 auto; padding: 48px 20px; }
.site-header { background: transparent; position: sticky; top: 0; z-index: 40; backdrop-filter: blur(6px); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { font-weight: 700; color: var(--text); text-decoration: none; font-size: 1rem; }
.main-nav { display: flex; gap: 16px; align-items: center; }
.main-nav a { color: var(--muted); text-decoration: none; padding: 8px 6px; }
.main-nav a.btn { background: transparent; border: 1px solid var(--muted); padding: 8px 12px; border-radius: 8px; color: var(--muted); }
.main-nav a:hover { color: var(--accent); }
.nav-toggle { display: none; background: transparent; border: 0; font-size: 20px; }

.hero { display: grid; grid-template-columns: 1fr 320px; gap: 30px; align-items: center; padding-top: 24px; padding-bottom: 24px; }
.hero-left { max-width: 640px; }
.hero-title { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 0 0 6px; line-height: 1.05; }
.hero-sub { color: var(--muted); margin: 0 0 12px; }
.hero-lead { margin: 0 0 18px; color: #111827; }
.hero-ctas { display: flex; gap: 12px; }
.btn { display: inline-block; padding: 10px 14px; border-radius: 10px; text-decoration: none; border: 1px solid transparent; font-weight: 600; }
.btn.primary { background: var(--accent); color: white; transition: background .15s ease; }
.btn.primary:hover { background: #1e4ed8; }
.btn.outline { background: transparent; border: 1px solid rgba(15,23,42,.08); color: var(--text); }

.avatar { width: 100%; max-width: 220px; border-radius: 12px; background: var(--card); box-shadow: 0 6px 18px rgba(15,23,42,.06); padding: 12px; }
.contact-list { list-style: none; padding: 0; margin: 18px 0 0; color: var(--muted); }
.contact-list li { margin-bottom: 8px; }

.section { padding-top: 28px; padding-bottom: 28px; }
h2 { margin: 0 0 12px; font-size: 1.1rem; }
.timeline .job { background: var(--card); padding: 16px; border-radius: 10px; box-shadow: 0 6px 18px rgba(12,17,23,.04); margin-bottom: 12px; }
.muted { color: var(--muted); font-size: 0.95rem; margin: 6px 0; }

.projects-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.project { background: var(--card); padding: 14px; border-radius: 10px; box-shadow: 0 6px 18px rgba(12,17,23,.04); }
.project img { width: 100%; height: 160px; object-fit: cover; border-radius: 6px; margin-bottom: 10px; }

.skills-list { display: flex; flex-direction: column; gap: 12px; }
.skill { display: flex; flex-direction: column; gap: 6px; }
.skill-name { font-weight: 600; }
.skill-bar { background: #e6eefc; border-radius: 999px; height: 10px; overflow: hidden; }
.skill-bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), #7c3aed); }

.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; max-width: 700px; }
.contact-form label { display: block; }
.contact-form input, .contact-form textarea { width: 100%; padding: 10px; border-radius: 8px; border: 1px solid #e6e9ef; }
.contact-form textarea { grid-column: 1 / -1; }

.site-footer { border-top: 1px solid rgba(15,23,42,.04); padding: 20px 0; background: transparent; }

.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; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .main-nav { display: none; position: absolute; right: 20px; top: 64px; background: white; border-radius: 10px; padding: 12px; box-shadow: 0 8px 24px rgba(12,17,23,.08); }
  .main-nav.open { display: flex; flex-direction: column; }
  .nav-toggle { display: block; }
  .projects-grid { grid-template-columns: 1fr; }
  .contact-form { grid-template-columns: 1fr; }
}