/* Circuit Folio. Brand colours for both themes are the variables at the top. */

@font-face { font-family: "Chakra Petch"; src: url("../fonts/chakra-petch-600.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Chakra Petch"; src: url("../fonts/chakra-petch-700.woff2") format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Rubik"; src: url("../fonts/rubik-latin.woff2") format("woff2"); font-weight: 300 800; font-display: swap; }

:root {
  --bg: #070b1a;
  --panel: #0d1430;
  --panel-2: #121b3e;
  --line: #1f2b57;
  --text: #e9eeff;
  --soft: #a3aed4;
  --accent: #5b8cff;
  --accent-ink: #2b5fe0;
  --signal: #34e3ff;
  --trace: #26408f;
  --danger: #ff8a8a;
  --ok: #6ee7b0;
  --display: "Chakra Petch", "Segoe UI", sans-serif;
  --body: "Rubik", system-ui, -apple-system, "Segoe UI", sans-serif;
  --cut: 14px;
  color-scheme: dark;
}
[data-theme="light"] {
  --bg: #f3f5fb;
  --panel: #ffffff;
  --panel-2: #eaeefa;
  --line: #d3daee;
  --text: #0b1230;
  --soft: #4a5578;
  --accent: #2450d6;
  --accent-ink: #2450d6;
  --signal: #08758c;
  --trace: #b9c6ec;
  --danger: #b4232a;
  --ok: #0f7a4d;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 84px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 var(--body); }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p { margin: 0; }
a { color: inherit; }
a, button, select, summary, label:has(input[type="checkbox"]) { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .7; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 50; padding: 10px 16px; background: var(--accent-ink); color: #fff; font-weight: 600; }
.skip:focus { top: 12px; }
.wrap { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
.row { display: flex; flex-wrap: wrap; gap: 12px; }

/* Buttons with one cut corner */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; border: 0; background: var(--accent-ink); color: #fff; font-family: var(--display); font-weight: 700; font-size: 16px; text-decoration: none; clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px); }
.btn:hover { background: #2a5ad6; }
.btn:active { transform: translateY(1px); }
.btn-line { background: transparent; color: var(--signal); box-shadow: inset 0 0 0 1px var(--signal); clip-path: none; }
.btn-line:hover { background: var(--panel-2); }
.btn-sm { min-height: 42px; padding: 0 16px; font-size: 15px; }
.icon-btn { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid var(--line); background: var(--panel); color: var(--text); }
.icon-btn:hover { border-color: var(--signal); color: var(--signal); }
.link { border: 0; background: none; padding: 4px 6px; color: var(--signal); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
.link:hover { color: var(--text); }

/* Header */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.hd { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 72px; }
.logo { font-family: var(--display); font-weight: 700; font-size: 21px; letter-spacing: .04em; text-transform: uppercase; text-decoration: none; }
.nav { display: flex; gap: 4px; }
.nav a { padding: 10px 12px; color: var(--soft); text-decoration: none; font-weight: 500; }
.nav a:hover, .nav a[aria-current] { color: var(--signal); }
.hd-actions { display: flex; align-items: center; gap: 8px; }
.burger { display: none; }
.burger span, .burger span::before, .burger span::after { display: block; width: 18px; height: 2px; background: currentColor; position: relative; transition: transform .2s; }
.burger span::before, .burger span::after { content: ""; position: absolute; left: 0; }
.burger span::before { top: -6px; } .burger span::after { top: 6px; }
.nav-open .burger span { background: transparent; }
.nav-open .burger span::before { transform: translateY(6px) rotate(45deg); }
.nav-open .burger span::after { transform: translateY(-6px) rotate(-45deg); }
@media (max-width: 920px) {
  .burger { display: grid; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; padding: 8px 20px 16px; background: var(--bg); border-bottom: 1px solid var(--line); }
  .nav-open .nav { display: flex; }
  .nav a { min-height: 48px; display: flex; align-items: center; font-size: 18px; }
}
@media (max-width: 560px) { .hd-actions .btn-sm { display: none; } .logo { font-size: 18px; } }

/* Hero */
.hero { padding: 56px 0 0; }
.hero-in { display: grid; grid-template-columns: 1fr 1.05fr; gap: 48px; align-items: center; }
.kicker { display: flex; align-items: center; gap: 10px; color: var(--signal); font-family: var(--display); font-weight: 600; letter-spacing: .05em; text-transform: uppercase; font-size: 15px; }
.kicker::before { content: ""; width: 26px; height: 2px; background: currentColor; }
.hero h1 { margin: 16px 0 18px; font-family: var(--display); font-weight: 700; font-size: clamp(42px, 6vw, 80px); line-height: 1; }
.hero h1 em { font-style: normal; color: var(--accent); }
.lead { color: var(--soft); font-size: 18px; max-width: 46ch; }
.hero .lead { margin-bottom: 18px; }
.status { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 26px; padding: 8px 14px; border: 1px solid var(--line); background: var(--panel); font-size: 15px; font-weight: 500; }
.status::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--ok); }
.board { position: relative; color: var(--trace); }
.traces { position: absolute; inset: -30px -40px; width: calc(100% + 80px); height: calc(100% + 60px); }
.traces .nodes { fill: var(--signal); }
.frame { position: relative; margin: 0 auto; width: min(400px, 100%); padding: 10px; background: linear-gradient(135deg, var(--accent), var(--signal)); clip-path: polygon(28px 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%, 0 28px); }
.frame img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; background: var(--panel-2); clip-path: polygon(22px 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%, 0 22px); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 56px; border-block: 1px solid var(--line); }
.stats div { padding: 22px 0; }
.stats div + div { padding-left: 24px; border-left: 1px solid var(--line); }
.stats b { display: block; font-family: var(--display); font-size: 30px; line-height: 1.1; }
.stats span { color: var(--soft); font-size: 14px; }

/* Sections */
.sec { padding: 72px 0; border-bottom: 1px solid var(--line); }
.sec h2 { margin-bottom: 28px; font-family: var(--display); font-weight: 700; font-size: clamp(30px, 3.6vw, 44px); line-height: 1.1; }
.sec h2 small { display: block; margin-bottom: 6px; font-size: 15px; color: var(--signal); letter-spacing: .08em; text-transform: uppercase; }
.sec-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 16px; margin-bottom: 28px; }
.sec-head h2 { margin: 0; }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.load-error { margin: 24px auto; padding: 14px 18px; border: 1px solid var(--danger); color: var(--danger); }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips button { min-height: 40px; padding: 0 14px; border: 1px solid var(--line); background: var(--panel); color: var(--soft); font-weight: 500; }
.chips button:hover { color: var(--text); border-color: var(--soft); }
.chips button[aria-pressed="true"] { border-color: var(--signal); color: var(--signal); background: var(--panel-2); }

.proj-grid { display: grid; gap: 22px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); }
.proj { display: flex; flex-direction: column; background: var(--panel); border: 1px solid var(--line); text-decoration: none; clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%); transition: border-color .2s, transform .2s; }
.proj:hover { border-color: var(--accent); transform: translateY(-3px); }
.proj-media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.proj-body { display: flex; flex-direction: column; gap: 6px; padding: 18px 20px 20px; flex: 1; }
.proj-meta { font-family: var(--display); font-size: 14px; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; color: var(--signal); }
.proj-title { font-family: var(--display); font-weight: 700; font-size: 24px; line-height: 1.15; }
.proj-text { color: var(--soft); font-size: 15px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 8px; }
.tags span { padding: 3px 9px; border: 1px solid var(--line); font-size: 13px; color: var(--soft); }

/* Timeline drawn as a circuit trace */
.tl { list-style: none; margin: 0; padding: 0 0 0 30px; position: relative; }
.tl::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--accent), var(--signal)); }
.tl li { position: relative; padding-bottom: 26px; }
.tl li:last-child { padding-bottom: 0; }
.tl li::before { content: ""; position: absolute; left: -29px; top: 5px; width: 14px; height: 14px; background: var(--bg); border: 2px solid var(--signal); transform: rotate(45deg); }
.tl-when { font-family: var(--display); font-weight: 600; color: var(--signal); font-size: 15px; }
.tl-title { font-size: 19px; font-weight: 600; margin-top: 2px; }
.tl-org { color: var(--text); font-weight: 500; }
.tl-text { color: var(--soft); font-size: 15px; margin-top: 4px; }

.skill-groups { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 18px; }
.skill-group { padding: 22px; background: var(--panel); border: 1px solid var(--line); }
.skill-group h3 { margin-bottom: 14px; font-family: var(--display); font-size: 18px; color: var(--soft); text-transform: uppercase; letter-spacing: .06em; }
.skill-group ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.skill-group li { padding: 7px 12px; border: 1px solid var(--line); font-weight: 500; }
.skill-group li.main { border-color: var(--accent); color: var(--text); background: var(--panel-2); }
.legend { margin-top: 14px; color: var(--soft); font-size: 14px; }

.cert-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.cert { display: grid; grid-template-columns: 52px 1fr; gap: 16px; align-items: center; padding: 16px; background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--signal); }
.cert-mark { display: grid; place-items: center; width: 52px; height: 52px; border: 1px solid var(--signal); color: var(--signal); font-family: var(--display); font-weight: 700; }
.cert h3 { font-size: 17px; font-weight: 600; }
.cert p { color: var(--soft); font-size: 14px; }
.cert a { display: inline-block; margin-top: 2px; color: var(--signal); font-size: 14px; font-weight: 600; }

/* Contact */
.contact { border-bottom: 0; }
.contact-in { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
.contact .lead { margin-bottom: 22px; }
.direct { margin-bottom: 22px; font-family: var(--display); font-size: 24px; font-weight: 700; }
.direct a { text-underline-offset: 5px; }
.form { display: grid; gap: 16px; padding: 28px; background: var(--panel); border: 1px solid var(--line); }
.two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.field { display: grid; gap: 6px; }
.field > span:first-child { font-weight: 500; font-size: 15px; }
.field input, .field select, .field textarea { width: 100%; min-height: 48px; padding: 10px 12px; background: var(--bg); color: var(--text); border: 1px solid #5a6796; border-radius: 0; }
[data-theme="light"] .field input, [data-theme="light"] .field select, [data-theme="light"] .field textarea { border-color: #7d88aa; background: #fff; }
.field textarea { resize: vertical; }
.field :focus { outline: 2px solid var(--signal); outline-offset: 0; border-color: var(--signal); }
[aria-invalid="true"] { border-color: var(--danger) !important; }
.err { color: var(--danger); font-size: 14px; font-weight: 500; }
.form-note { padding: 12px 14px; border: 1px solid; font-weight: 500; }
.form-note.ok { color: var(--ok); }
.form-note.bad { color: var(--danger); }

.foot { border-top: 1px solid var(--line); }
.ft { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-block: 28px; color: var(--soft); font-size: 15px; }
.social { display: flex; flex-wrap: wrap; gap: 18px; }
.social a { color: var(--text); text-underline-offset: 4px; }

/* Project page */
.case { padding-top: 40px; padding-bottom: 72px; }
.back { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 28px; color: var(--signal); font-weight: 600; text-underline-offset: 4px; }
.back::before { content: "←"; }
.cs-head { max-width: 860px; margin-bottom: 32px; }
.cs-head h1 { margin: 8px 0 14px; font-family: var(--display); font-weight: 700; font-size: clamp(40px, 6vw, 72px); line-height: 1; }
.cs-lead { color: var(--soft); font-size: 20px; margin-bottom: 22px; }
.cs-cover { margin: 0 0 40px; border: 1px solid var(--line); }
.cs-cover img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.cs-body { display: grid; grid-template-columns: 280px 1fr; gap: 56px; }
.cs-facts { margin: 0; display: grid; gap: 0; align-content: start; border-top: 1px solid var(--line); }
.cs-facts div { padding: 14px 0; border-bottom: 1px solid var(--line); }
.cs-facts dt { font-family: var(--display); font-size: 14px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--signal); }
.cs-facts dd { margin: 2px 0 0; }
.cs-text { display: grid; gap: 30px; max-width: 70ch; }
.cs-part h2 { margin-bottom: 10px; font-family: var(--display); font-size: 26px; }
.cs-part p, .cs-part li { color: var(--soft); font-size: 17px; }
.cs-part ul { margin: 0; padding-left: 20px; display: grid; gap: 6px; }
.cs-gallery { margin-top: 56px; display: grid; gap: 22px; }
.cs-gallery h2 { font-family: var(--display); font-size: 26px; }
.cs-gallery figure { margin: 0; }
.cs-gallery img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border: 1px solid var(--line); }
.cs-gallery figcaption { margin-top: 8px; color: var(--soft); font-size: 15px; }
.cs-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 56px; }
.cs-nav a { display: grid; gap: 4px; padding: 20px; background: var(--panel); border: 1px solid var(--line); text-decoration: none; font-family: var(--display); font-weight: 700; font-size: 22px; }
.cs-nav a:last-child { text-align: right; }
.cs-nav a:hover { border-color: var(--accent); }
.cs-nav small { font-family: var(--body); font-weight: 500; font-size: 14px; color: var(--soft); }
.nf { display: grid; gap: 18px; justify-items: start; padding: 60px 0; font-size: 20px; }

/* 404 */
.lost { min-height: 100dvh; display: grid; place-items: center; }
.lost-in { display: grid; gap: 16px; justify-items: start; padding-block: 60px; }
.lost .code { font-family: var(--display); font-weight: 700; font-size: 120px; line-height: 1; color: var(--accent); }
.lost h1 { font-family: var(--display); font-size: clamp(40px, 6vw, 64px); }
.lost p { color: var(--soft); font-size: 18px; }

@media (max-width: 920px) {
  .wrap { padding: 0 20px; }
  .hero-in, .cols, .contact-in, .cs-body { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .board { order: -1; margin: 16px 0 8px; }
  .frame { width: 280px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stats div:nth-child(3) { padding-left: 0; border-left: 0; }
  .stats div:nth-child(n+3) { border-top: 1px solid var(--line); }
}
@media (max-width: 560px) {
  .two, .cs-nav { grid-template-columns: minmax(0, 1fr); }
  .cs-nav a:last-child { text-align: left; }
  .form { padding: 20px 16px; }
  .traces { display: none; }
}

/* Print: a clean résumé */
@media print {
  :root, [data-theme="light"], [data-theme="dark"] { --bg: #fff; --panel: #fff; --panel-2: #fff; --line: #bbb; --text: #000; --soft: #333; --signal: #000; --accent: #000; color-scheme: light; }
  html, body { background: #fff !important; }
  .top, .board, .chips, .contact form, .contact .row, .foot, .skip, #work, .stats, .legend, .direct .link, .hero .row, .load-error { display: none !important; }
  body { font-size: 11pt; }
  h1, h2, h3 { break-after: avoid; }
  .wrap { padding: 0; }
  .hero { padding: 0 0 8pt; }
  .hero-in { display: block; }
  .hero h1 { font-size: 26pt; margin: 6pt 0; }
  .lead { font-size: 11pt; max-width: none; }
  .status { margin: 6pt 0 0; }
  .sec { padding: 10pt 0; border: 0; }
  .sec h2 { font-size: 16pt; margin-bottom: 8pt; }
  .sec h2 small { display: none; }
  .cols { gap: 24pt; }
  .tl li, .cert, .skill-group { break-inside: avoid; }
  .tl { padding-left: 0; }
  .tl::before, .tl li::before { display: none; }
  .tl li { padding-bottom: 10pt; }
  .cert, .skill-group { border: 0; padding: 0; }
  .cert-mark { display: none; }
  .cert { display: block; }
  .contact h2 { font-size: 14pt; }
  .direct { font-size: 12pt; }
  a { text-decoration: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}