@font-face {
  font-family: Inter;
  font-weight: 400 700;
  font-display: swap;
  src: url(fonts/inter-latin.woff2) format("woff2");
}
:root {
  --bg: #f6f8fa;
  --surface: #ffffff;
  --text: #15202b;
  --muted: #5b6876;
  --line: #e1e7ec;
  --accent: #0891b2;
  --accent-soft: #e3f6fa;
  --accent-text: #0e7490;
  --hero: linear-gradient(135deg, #0b1d26 0%, #0f3340 60%, #0e4a59 100%);
  --hero-text: #f1f7f9;
  --hero-muted: #a9c3cc;
  --shadow: 0 1px 2px rgb(16 32 43 / 0.05), 0 4px 16px rgb(16 32 43 / 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1217;
    --surface: #151d25;
    --text: #e6edf3;
    --muted: #93a1af;
    --line: #26313c;
    --accent: #22d3ee;
    --accent-soft: #0f2f37;
    --accent-text: #67e8f9;
    --hero: linear-gradient(135deg, #081218 0%, #0b2630 60%, #0b3945 100%);
    --shadow: none;
  }
}

* { box-sizing: border-box; }

html { font-size: 16px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  overflow-wrap: break-word;
  -webkit-text-size-adjust: 100%;
}

a { color: var(--accent-text); }
h1, h2, h3, p, ul { margin: 0; }
ul { padding-left: 1.1em; }
.plain { list-style: none; padding: 0; }
.muted { color: var(--muted); }

.eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-text);
}

/* Hero */
.hero { background: var(--hero); color: var(--hero-text); }
.hero-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 16px 44px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: center;
}

.photo {
  position: relative;
  width: 168px;
  height: 168px;
  border-radius: 28px;
  overflow: hidden;
  background: #164a58;
  color: var(--hero-text);
  display: grid;
  place-items: center;
  font-size: 3rem;
  font-weight: 700;
  box-shadow: 0 0 0 4px rgb(255 255 255 / 0.08), 0 12px 32px rgb(0 0 0 / 0.35);
}
.photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

.hero .eyebrow { color: #67e8f9; }
h1 { font-size: 2.75rem; line-height: 1.1; letter-spacing: -0.03em; font-weight: 700; margin-top: 4px; }
.title { font-size: 1.15rem; font-weight: 500; color: var(--hero-muted); margin-top: 6px; }

.facts { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.facts li {
  font-size: 0.85rem;
  font-weight: 500;
  padding: 3px 12px;
  border-radius: 999px;
  background: rgb(103 232 249 / 0.12);
  color: #a5f3fc;
}

.contact { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 14px; font-size: 0.95rem; }
.contact a { color: var(--hero-text); text-decoration: none; border-bottom: 1px solid rgb(255 255 255 / 0.25); }
.contact a:hover { border-color: #67e8f9; color: #67e8f9; }

.controls { display: flex; flex-direction: column; gap: 12px; align-items: flex-end; align-self: start; }

.lang { display: inline-flex; border: 1px solid rgb(255 255 255 / 0.2); border-radius: 8px; overflow: hidden; }
.lang button {
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 12px;
  border: 0;
  background: transparent;
  color: var(--hero-muted);
  cursor: pointer;
}
.lang button[aria-pressed="true"] { background: #22d3ee; color: #082029; }

.btn {
  display: inline-block;
  padding: 9px 16px;
  border-radius: 8px;
  background: #22d3ee;
  color: #082029;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  white-space: nowrap;
  border: 0;
  font-family: inherit;
  cursor: pointer;
}
.btn:hover { background: #67e8f9; }

/* Sections */
main { max-width: 960px; margin: 0 auto; padding: 8px 16px 64px; }
section { padding-top: 44px; }

h2 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}
h2::before { content: ""; width: 4px; height: 1.1em; border-radius: 2px; background: var(--accent); }

h3 { font-size: 1.05rem; font-weight: 600; }

#summary { font-size: 1.05rem; }
#summary p + p { margin-top: 12px; }

/* Experience */
.timeline .entry { display: grid; grid-template-columns: 150px 1fr; gap: 24px; }
.timeline .entry + .entry { margin-top: 4px; }
.when { padding-top: 2px; text-align: right; font-size: 0.85rem; color: var(--muted); }
.when strong { display: block; color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }
.what { position: relative; border-left: 2px solid var(--line); padding: 0 0 24px 24px; }
.what::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
}
.timeline .entry:first-child .what::before { background: var(--accent); }
.role { color: var(--accent-text); font-weight: 500; font-size: 0.95rem; }
.what ul { margin-top: 6px; }
.what .tags { margin-top: 10px; }
.what .tags li { font-size: 0.78rem; padding: 1px 9px; background: var(--accent-soft); border-color: transparent; color: var(--accent-text); font-weight: 500; }
.what li + li { margin-top: 2px; }

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.card > * + * { margin-top: 8px; }
.card .eyebrow + h3 { margin-top: 2px; }
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
#oss { grid-template-columns: repeat(3, 1fr); margin-top: 18px; }
#oss .card { padding: 16px; font-size: 0.92rem; }
#oss .eyebrow { text-transform: none; letter-spacing: 0; font-size: 0.8rem; }
.project { border-top: 3px solid var(--accent); }
#projects { grid-template-columns: 1fr; }

.more { margin-top: 16px; }
.more a { font-weight: 500; }
.detail { font-size: 0.92rem; }

/* Skills */
.skills { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.group { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; box-shadow: var(--shadow); }
.group h3 { font-size: 0.85rem; color: var(--muted); margin-bottom: 8px; }
.group.core { grid-column: 1 / -1; background: var(--accent-soft); border-color: transparent; box-shadow: none; }
.group.core h3 { color: var(--accent-text); }

.tags { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.tags li {
  font-size: 0.82rem;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--line);
}
.core .tags li { font-size: 0.95rem; font-weight: 600; padding: 4px 14px; background: var(--surface); border-color: var(--accent); color: var(--accent-text); }

/* Education, languages, interests */
#education .entry + .entry { margin-top: 12px; }
.entry-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0 12px; }
.entry-head + p { color: var(--muted); }
#languages { display: flex; flex-wrap: wrap; gap: 8px 28px; }
#interests li + li { margin-top: 4px; }

/* Education, languages and interests share one row on wide screens and in print */
@media (min-width: 801px), print {
  main { display: grid; grid-template-columns: 1.3fr 1fr 1fr; column-gap: 32px; }
  main > section:nth-child(-n+5) { grid-column: 1 / -1; }
  #languages { flex-direction: column; gap: 4px; }
}

@media (max-width: 800px) {
  #oss { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .hero-inner { grid-template-columns: 1fr; gap: 20px; padding-top: 28px; padding-bottom: 28px; }
  .photo { width: 112px; height: 112px; border-radius: 22px; font-size: 2rem; }
  .controls { grid-row: 1; flex-direction: row; justify-content: space-between; align-items: center; align-self: auto; }
  h1 { font-size: 2rem; }
  .cards, #oss, .skills { grid-template-columns: 1fr; }
  .timeline .entry { grid-template-columns: 1fr; gap: 0; }
  .when { text-align: left; padding: 0 0 4px 24px; border-left: 2px solid var(--line); display: flex; gap: 8px; }
  .when strong { display: inline; }
}

/* Print */
@page { size: A4; margin: 0; }

@media print {
  /* ponytail: zero page margin hides the browser's date/title/URL; padding cloned onto every page restores the margin */
  body { padding: 14mm; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
  :root {
    --bg: #ffffff;
    --surface: #ffffff;
    --text: #15202b;
    --muted: #5b6876;
    --line: #dde4ea;
    --accent: #0891b2;
    --accent-soft: #e3f6fa;
    --accent-text: #0e7490;
    --shadow: none;
  }
  html { font-size: 10pt; }
  body { line-height: 1.45; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .hero { background: none; color: var(--text); border-bottom: 2px solid var(--accent); }
  .hero-inner, main { max-width: none; padding-left: 0; padding-right: 0; }
  .hero-inner { grid-template-columns: auto 1fr; gap: 20px; padding-top: 0; padding-bottom: 14px; }
  .controls { display: none; }
  .photo { width: 96px; height: 96px; border-radius: 16px; box-shadow: none; }
  .hero .eyebrow { color: var(--accent-text); }
  h1 { font-size: 2rem; }
  .title { color: var(--muted); }
  .facts { margin-top: 8px; }
  .facts li { background: var(--accent-soft); color: var(--accent-text); }
  .contact { margin-top: 8px; }
  .contact a { color: var(--accent-text); border: 0; }
  main { padding-bottom: 0; }
  section { padding-top: 16px; }
  h2 { font-size: 1.15rem; margin-bottom: 10px; break-after: avoid; }
  #summary { font-size: 1rem; }
  .timeline .entry { grid-template-columns: 110px 1fr; gap: 16px; }
  .what { padding-bottom: 8px; }
  .what ul { margin-top: 2px; }
  #summary p + p { margin-top: 6px; }
  #oss .card { font-size: 0.88rem; padding: 8px 10px; }
  .hero-inner { padding-bottom: 10px; }
  .card { padding: 10px 12px; border-radius: 10px; }
  .card > * + * { margin-top: 5px; }
  .cards, .skills { gap: 8px; }
  #oss { grid-template-columns: repeat(3, 1fr); }
  .group { padding: 8px 12px; border-radius: 10px; }
  .entry, .card, .group { break-inside: avoid; }
  .what .tags { margin-top: 6px; }
}