/* ===== Theme tokens ===== */
:root {
  --max: 860px;
  --radius: 14px;
  --radius-sm: 10px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --ease: cubic-bezier(.2, .7, .2, 1);
}
:root[data-theme='light'] {
  --bg: #fafafa; --bg-elev: #ffffff; --bg-soft: #f2f2f3;
  --text: #16171a; --text-soft: #55585f; --text-faint: #85888f;
  --border: #e6e6e9; --border-strong: #d6d6da;
  --accent: #0a84ff; --accent-soft: rgba(10,132,255,.1);
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 10px 30px rgba(0,0,0,.06);
  --tag-bg: #f0f1f3;
}
:root[data-theme='dark'] {
  --bg: #0c0d10; --bg-elev: #15171c; --bg-soft: #1b1e24;
  --text: #f2f3f5; --text-soft: #a9adb6; --text-faint: #71757f;
  --border: #23262d; --border-strong: #2e323b;
  --accent: #4c9dff; --accent-soft: rgba(76,157,255,.13);
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 14px 40px rgba(0,0,0,.45);
  --tag-bg: #1d2027;
}

* { 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; text-rendering: optimizeLegibility;
  transition: background .3s var(--ease), color .3s var(--ease);
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 1.15; letter-spacing: -0.02em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 22px; }

/* ===== Header ===== */
.site-header {
  display: flex; justify-content: space-between; align-items: flex-end;
  flex-wrap: wrap; gap: 18px;
  padding: 54px 0 28px; border-bottom: 1px solid var(--border); margin-bottom: 28px;
}

/* ===== Bio ===== */
.bio {
  margin: 0 0 48px; max-width: 62ch;
  font-size: clamp(1rem, 2.4vw, 1.12rem); line-height: 1.7; color: var(--text-soft);
}
.id h1 { font-size: clamp(1.9rem, 6vw, 2.6rem); font-weight: 800; letter-spacing: -0.03em; }
.id p { margin: 6px 0 0; color: var(--text-soft); font-size: 1rem; }
.header-links { display: flex; align-items: center; gap: 8px 18px; flex-wrap: wrap; }
.header-links > a { color: var(--text-soft); font-size: .93rem; font-weight: 500; transition: color .2s; }
.header-links > a:hover { color: var(--accent); }
.cv-btn {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--accent); color: #fff !important; font-weight: 600;
  padding: 9px 15px; border-radius: 10px;
  box-shadow: 0 6px 18px var(--accent-soft); transition: transform .15s var(--ease), box-shadow .2s;
}
.cv-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 26px var(--accent-soft); }
.icon-btn {
  display: grid; place-items: center; width: 36px; height: 36px; border-radius: 9px;
  background: var(--bg-soft); border: 1px solid var(--border); color: var(--text);
  cursor: pointer; transition: border-color .2s, transform .15s;
}
.icon-btn:hover { border-color: var(--border-strong); transform: translateY(-1px); }
:root[data-theme='dark'] .icon-sun { display: block; } :root[data-theme='dark'] .icon-moon { display: none; }
:root[data-theme='light'] .icon-sun { display: none; } :root[data-theme='light'] .icon-moon { display: block; }

/* ===== Blocks ===== */
.block { margin-bottom: 48px; }
.block-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 18px; }
.block-head h2 { font-size: 1.35rem; font-weight: 700; }
.count { font-family: var(--font-mono); font-size: .78rem; color: var(--text-faint); }

/* ===== App cards ===== */
.apps-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.app-card {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 22px;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.app-card:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: var(--shadow); }
.app-icon {
  width: 62px; height: 62px; border-radius: 15px; flex-shrink: 0;
  border: 1px solid var(--border); box-shadow: 0 4px 14px rgba(0,0,0,.12);
}
.app-info { min-width: 0; }
.app-info h3 { font-size: 1.03rem; margin-bottom: 4px; }
.app-info p { color: var(--text-soft); font-size: .88rem; margin: 0 0 9px; }
.role-tag {
  display: inline-block; font-family: var(--font-mono); font-size: .68rem;
  color: var(--accent); background: var(--accent-soft);
  padding: 1px 7px; border-radius: 6px; margin-left: 2px; white-space: nowrap;
}
.app-badge { font-family: var(--font-mono); font-size: .76rem; font-weight: 500; color: var(--accent); }
.app-card:hover .app-badge { text-decoration: underline; }

.also { margin: 18px 0 0; color: var(--text-soft); font-size: .86rem; line-height: 1.9; }
.also span { display: block; font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .07em; color: var(--text-faint); margin-bottom: 4px; }

/* ===== Jobs ===== */
.timeline { display: flex; flex-direction: column; gap: 14px; }
.job {
  display: flex; gap: 16px;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 22px;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.job:hover { border-color: var(--border-strong); box-shadow: var(--shadow); transform: translateY(-2px); }
.job-body { flex: 1; min-width: 0; }
.job-logo {
  flex-shrink: 0; width: 46px; height: 46px; border-radius: 12px;
  overflow: hidden; display: grid; place-items: center;
  background: var(--bg-soft); border: 1px solid var(--border);
}
.job-logo img { width: 100%; height: 100%; object-fit: contain; padding: 7px; }
.job-logo.mono::before { content: attr(data-mono); font-weight: 800; font-size: 1.2rem; color: hsl(var(--mono-hue,210) 70% 55%); }
.job-logo.mono { background: hsl(var(--mono-hue,210) 70% 55% / .12); border-color: hsl(var(--mono-hue,210) 70% 55% / .25); }
.job-head { display: flex; justify-content: space-between; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 12px; }
.job-title { font-size: 1.1rem; font-weight: 700; }
.job-company { margin: 3px 0 0; color: var(--text-soft); font-size: .93rem; }
.job-company a { color: var(--accent); font-weight: 600; }
.job-company a:hover { text-decoration: underline; }
.job-dates { font-family: var(--font-mono); font-size: .8rem; color: var(--text-faint); white-space: nowrap; }
.job-points { display: flex; flex-direction: column; gap: 6px; }
.job-points li { position: relative; padding-left: 18px; font-size: .92rem; }
.job-points li::before { content: ''; position: absolute; left: 2px; top: .66em; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.tags li { font-family: var(--font-mono); font-size: .74rem; color: var(--text-soft); background: var(--tag-bg); border: 1px solid var(--border); padding: 3px 9px; border-radius: 7px; }

/* ===== Skills ===== */
.skills {
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.skill-row {
  display: grid; grid-template-columns: 180px 1fr; gap: 18px;
  padding: 16px 22px; border-top: 1px solid var(--border);
}
.skill-row:first-child { border-top: 0; }
.skill-key {
  font-family: var(--font-mono); font-size: .74rem; text-transform: uppercase;
  letter-spacing: .06em; color: var(--text-faint); padding-top: 2px;
}
.skill-vals { color: var(--text); font-size: .92rem; line-height: 1.7; }

/* ===== Certifications ===== */
.certs-list .job-body { display: flex; align-items: center; }
.certs-list .job-head { margin-bottom: 0; }
.cert-id { font-family: var(--font-mono); font-size: .78rem; color: var(--text-faint); }
.cert-link { font-family: var(--font-mono); font-size: .76rem; font-weight: 500; color: var(--accent); white-space: nowrap; }
.cert-link:hover { text-decoration: underline; }

/* ===== Footer ===== */
.footer {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  padding: 26px 0 40px; border-top: 1px solid var(--border);
  color: var(--text-faint); font-size: .84rem;
}
.footer-links { display: flex; gap: 16px; }
.footer-links a { transition: color .2s; }
.footer-links a:hover { color: var(--accent); }

/* ===== Reveal ===== */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .5s var(--ease), transform .5s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .apps-grid { grid-template-columns: 1fr; }
  .site-header { padding: 36px 0 24px; margin-bottom: 28px; }
  .app-card { padding: 18px; gap: 14px; }
  .job { padding: 18px; gap: 14px; }
  .job-logo { width: 40px; height: 40px; }
  .skill-row { grid-template-columns: 1fr; gap: 5px; padding: 14px 18px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}