/* Sebastiaan Berlo · portfolio landing page
   Converted from the design export to clean, static CSS. */

:root {
  --bg:        #F7F4EE;
  --ink:       #1C1A17;
  --accent:    #2B3A8C;
  --muted:     #6B6353;
  --muted-2:   #4A4436;
  --rule:      #D9D2C4;
  --rule-soft: #E4DECF;
  --border:    #B8AF9E;

  --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --mono:  'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --sans:  'IBM Plex Sans', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

/* Dark mode · warm editorial palette, follows the OS preference */
@media (prefers-color-scheme: dark) {
  :root {
    --bg:        #1A1712;
    --ink:       #EDE8DC;
    --accent:    #A6B6F0;
    --muted:     #A89E8A;
    --muted-2:   #C9BFAA;
    --rule:      #35312A;
    --rule-soft: #2C2820;
    --border:    #4C4738;
  }
}

html, body { margin: 0; padding: 0; background: var(--bg); }
* { box-sizing: border-box; }
a { color: inherit; }
::selection { background: var(--accent); color: var(--bg); }

.page {
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.container {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Top bar ---------- */
.topbar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 0;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}
.wordmark { font-weight: 500; }
.nav { display: flex; gap: 24px; }
.nav a {
  text-decoration: none;
  color: var(--muted);
  transition: color 0.15s ease;
}
.nav a:hover { color: var(--accent); }

/* ---------- Hero ---------- */
.hero {
  padding: 88px 0 76px;
  border-bottom: 1px solid var(--rule);
}
.eyebrow {
  margin: 0 0 20px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.eyebrow--accent { color: var(--accent); }

.hero__name {
  margin: 0 0 24px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(48px, 7vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.015em;
}
.hero__lede {
  margin: 0;
  max-width: 560px;
  font-size: 18px;
  color: var(--muted-2);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 36px;
}
.hero__location {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  margin-left: 6px;
}

/* "Now" status line */
.hero__now {
  margin: 30px 0 0;
  max-width: 560px;
  font-size: 15px;
  color: var(--muted-2);
  line-height: 1.6;
}
.now-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #3BA776;
  margin-right: 9px;
  vertical-align: middle;
  animation: now-pulse 2.4s ease-out infinite;
}
.now-label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-right: 9px;
  vertical-align: middle;
}
@keyframes now-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(59, 167, 118, 0.5); }
  70%  { box-shadow: 0 0 0 7px rgba(59, 167, 118, 0); }
  100% { box-shadow: 0 0 0 0 rgba(59, 167, 118, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .now-dot { animation: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn--primary {
  background: var(--accent);
  color: var(--bg);
  padding: 13px 22px;
}
.btn--primary:hover { background: var(--ink); }
.btn--ghost {
  padding: 13px 20px;
  border: 1px solid var(--border);
  color: var(--ink);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Section blocks ---------- */
.block {
  padding: 72px 0;
  border-bottom: 1px solid var(--rule);
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
}
.block__label {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.block__body { display: grid; }

/* ---------- Projects ---------- */
.project {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 24px;
  padding: 36px 0;
  border-bottom: 1px solid var(--rule-soft);
}
.project:first-child { padding-top: 0; }
.project:last-child { padding-bottom: 0; border-bottom: none; }

.project__title {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 30px;
  line-height: 1.15;
}
.project__desc {
  margin: 0 0 14px;
  color: var(--muted-2);
  max-width: 520px;
}
.project__stack {
  margin: 0;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent);
}
.project__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  text-align: right;
}

/* ---------- Experience ---------- */
.experience { gap: 26px; }
.exp {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 24px;
  align-items: baseline;
}
.exp__title {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 21px;
}
.exp__desc { margin: 0; color: var(--muted-2); max-width: 520px; }
.exp__date {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  text-align: right;
}

/* ---------- Education ---------- */
.education { grid-template-columns: 1fr 1fr; gap: 40px; }
.edu__title {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 21px;
}
.edu__meta {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
}
.edu__desc { margin: 0; color: var(--muted-2); }

/* ---------- Contact ---------- */
.contact { padding: 80px 0 40px; }
.contact .block__label { margin-bottom: 16px; }
.contact__email {
  display: inline-block;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.1;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--accent);
  transition: color 0.15s ease;
}
.contact__email:hover { color: var(--accent); }

.contact__actions { margin-top: 28px; }

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  margin-top: 72px;
  padding: 20px 0 28px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
}
.footer__links { display: flex; gap: 20px; }
.footer__links a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s ease;
}
.footer__links a:hover { color: var(--accent); }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .container { padding: 0 22px; }

  .hero { padding: 64px 0 56px; }

  .block {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 56px 0;
  }
  .block__label { margin-bottom: 4px; }

  .project,
  .exp {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .project__meta {
    flex-direction: row;
    align-items: baseline;
    gap: 14px;
    text-align: left;
  }
  .exp__date { text-align: left; }

  .education { grid-template-columns: 1fr; gap: 32px; }

  .contact { padding: 56px 0 32px; }
}

@media (max-width: 420px) {
  .nav { gap: 16px; }
  .hero__actions { gap: 10px; }
}

/* ---------- Project cards: links to detail pages ---------- */
.project__title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}
.project__title a:hover { color: var(--accent); }
.project__more {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}
.project__more:hover { border-color: var(--accent); }

/* ---------- Detail pages ---------- */
.detail-hero {
  padding: 64px 0 52px;
  border-bottom: 1px solid var(--rule);
}
.backlink {
  display: inline-block;
  margin-bottom: 36px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s ease;
}
.backlink:hover { color: var(--accent); }
.detail-hero__title {
  margin: 0 0 20px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(36px, 5.5vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.01em;
}
.detail-hero__lede {
  margin: 0;
  max-width: 620px;
  font-size: 18px;
  color: var(--muted-2);
}
.detail-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 36px;
  margin-top: 32px;
}
.fact { font-family: var(--mono); font-size: 12.5px; }
.fact__k {
  display: block;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 3px;
}
.fact__v { color: var(--accent); }

.prose p {
  margin: 0 0 16px;
  color: var(--muted-2);
  max-width: 620px;
}
.prose p:last-child { margin-bottom: 0; }
.prose ul {
  margin: 0 0 16px;
  padding-left: 20px;
  color: var(--muted-2);
  max-width: 600px;
}
.prose li { margin-bottom: 8px; }
.prose li:last-child { margin-bottom: 0; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose .aside {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  max-width: 620px;
}

/* Architecture flow diagram */
.flow {
  max-width: 560px;
  margin: 6px 0 0;
}
.flow__step {
  border: 1px solid var(--border);
  padding: 14px 18px;
  background: var(--bg);
}
.flow__stage {
  margin: 0 0 4px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--accent);
}
.flow__what {
  margin: 0;
  font-size: 14.5px;
  color: var(--muted-2);
}
.flow__arrow {
  padding: 6px 0;
  text-align: center;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
}
.flow__split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 520px) {
  .flow__split { grid-template-columns: 1fr; }
}

/* Thesis: chapter route list */
.route { max-width: 620px; }
.route__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule-soft);
}
.route__item:first-child { padding-top: 0; }
.route__item:last-child { border-bottom: none; padding-bottom: 0; }
.route__num {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  padding-top: 3px;
}
.route__title {
  margin: 0 0 3px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 19px;
}
.route__desc {
  margin: 0;
  font-size: 14.5px;
  color: var(--muted-2);
}

/* ---------- Accessibility: skip link + keyboard focus ---------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  background: var(--accent);
  color: var(--bg);
  padding: 10px 16px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 12px; }
#main:focus { outline: none; }

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

/* ---------- Scroll reveal (only with JS; respects reduced motion) ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Print: clean, forced-light CV-style output ---------- */
@media print {
  :root {
    --bg: #ffffff;
    --ink: #000000;
    --accent: #1c2a6b;
    --muted: #444444;
    --muted-2: #222222;
    --rule: #bbbbbb;
    --rule-soft: #dddddd;
    --border: #999999;
  }
  .page { background: #fff; min-height: 0; }
  .skip-link, .nav, .hero__actions { display: none; }
  .js .reveal { opacity: 1 !important; transform: none !important; }
  a { text-decoration: none; }
  .block, .hero, .contact, .project, .exp { break-inside: avoid; }
  .hero { padding-top: 24px; }
}