:root {
  --bg: #ffffff;
  --bg-alt: #f6f7f9;
  --ink: #111827;
  --ink-2: #4b5563;
  --ink-3: #6b7280;
  --line: #e5e7eb;
  --accent: #1f4fd1;
  --accent-ink: #ffffff;
  --accent-soft: #eef2fd;
  --radius: 14px;
  --wrap: 1080px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.65 var(--font);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); }
h1, h2, h3 { line-height: 1.2; margin: 0; letter-spacing: -0.015em; }
h1 { font-size: clamp(2.3rem, 5vw, 3.4rem); font-weight: 750; }
h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 700; margin-bottom: 1.2rem; }
h3 { font-size: 1.1rem; font-weight: 650; }
p { margin: 0 0 1rem; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
@media (max-width: 480px) { .wrap { padding: 0 16px; } }

.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 12px; border-radius: 8px; z-index: 10; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 5; background: rgba(255,255,255,.9); backdrop-filter: saturate(180%) blur(8px); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { font-weight: 800; color: var(--ink); text-decoration: none; letter-spacing: .04em; }
.nav nav { display: flex; gap: 22px; }
.nav nav a { color: var(--ink-2); text-decoration: none; font-size: .95rem; }
.nav nav a:hover { color: var(--ink); }
@media (max-width: 560px) { .nav nav { gap: 14px; } .nav nav a { font-size: .88rem; } }

/* Hero */
.hero { padding: 72px 0 80px; }
.hero-grid { display: grid; grid-template-columns: 1fr 340px; gap: 56px; align-items: center; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; font-weight: 650; color: var(--accent); margin-bottom: .7rem; }
.lead { font-size: 1.2rem; color: var(--ink-2); max-width: 40em; margin-top: 1.1rem; }
.meta { color: var(--ink-3); font-size: .98rem; }
.hero-photo { justify-self: center; }
.hero-photo img { width: 300px; height: 300px; aspect-ratio: 1; object-fit: cover; object-position: center; border-radius: 50%; background: var(--bg-alt); border: 6px solid #fff; box-shadow: 0 0 0 1px var(--line), 0 12px 32px rgba(17,24,39,.12); }
@media (max-width: 760px) {
  .hero { padding: 40px 0 56px; }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-photo { order: -1; justify-self: start; }
  .hero-photo img { width: 180px; height: 180px; }
}

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 1.6rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 22px; border-radius: 999px; font-weight: 600; font-size: .98rem; text-decoration: none; border: 1.5px solid transparent; transition: background .15s, color .15s, border-color .15s; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: #1a43b3; }
.btn-ghost { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-ghost:hover { border-color: var(--ink-3); }

/* Sections */
.section { padding: 80px 0; border-top: 1px solid var(--line); }
.section.alt { background: var(--bg-alt); }
@media (max-width: 760px) { .section { padding: 56px 0; } }
.two-col { display: grid; grid-template-columns: 280px 1fr; gap: 48px; }
@media (max-width: 860px) { .two-col { grid-template-columns: 1fr; gap: 8px; } }
.prose p { color: var(--ink-2); }

.skills { margin: 1.8rem 0 0; display: grid; gap: 14px; }
.skills div { display: grid; grid-template-columns: 170px 1fr; gap: 16px; padding-top: 14px; border-top: 1px solid var(--line); }
.skills dt { font-weight: 650; }
.skills dd { margin: 0; color: var(--ink-2); }
@media (max-width: 560px) { .skills div { grid-template-columns: 1fr; gap: 2px; } }

/* Project cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 960px) { .cards { grid-template-columns: 1fr; } }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; display: flex; flex-direction: column; }
.card h3 { margin-bottom: .8rem; }
.card p { color: var(--ink-2); font-size: .97rem; }
.tags { list-style: none; padding: 0; margin: .4rem 0 1rem; display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { background: var(--accent-soft); color: var(--accent); font-size: .8rem; font-weight: 600; padding: 4px 10px; border-radius: 999px; }
.note { margin: auto 0 0; font-size: .85rem; color: var(--ink-3); }

/* Timeline */
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline > li { padding: 0 0 28px 26px; border-left: 2px solid var(--line); position: relative; }
.timeline > li::before { content: ""; position: absolute; left: -7px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: #fff; border: 2px solid var(--accent); }
.timeline > li:last-child { padding-bottom: 0; }
.role { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; align-items: baseline; margin-bottom: .4rem; }
.role small { display: block; font-size: .92rem; font-weight: 500; color: var(--ink-2); margin-top: 2px; }
.role span { color: var(--ink-3); font-size: .92rem; white-space: nowrap; }
.timeline ul { margin: 0; padding-left: 1.1rem; color: var(--ink-2); }
.timeline ul li { margin-bottom: .35rem; }
.edu p { color: var(--ink-2); }

/* Contact */
.contact { background: var(--ink); color: #fff; border-top: 0; }
.contact .eyebrow { color: #9db4ff; }
.contact .lead { color: #d1d5db; }
.contact-inner { max-width: 760px; }
.contact .btn-ghost { background: transparent; color: #fff; border-color: #4b5563; }
.contact .btn-ghost:hover { border-color: #e5e7eb; }
.contact .btn-primary { background: #fff; color: var(--ink); }
.contact .btn-primary:hover { background: #e5e7eb; }
.addr { margin-top: 1.2rem; color: #9ca3af; font-size: .95rem; min-height: 1.5em; }
.addr a { color: #fff; }

.footer { padding: 28px 0; color: var(--ink-3); font-size: .9rem; border-top: 1px solid var(--line); }