:root {
  --bg: #F6F7F9;
  --surface: #FFFFFF;
  --ink: #17202C;
  --muted: #566273;
  --line: #DCE1E8;
  --accent: #1F5E4E;
  --accent-soft: #E3EEEA;
  --console: #141B24;
  --console-2: #1C2531;
  --console-ink: #D6DEE8;
  --console-dim: #7F8B9B;
  --hit: #F0B429;
  --err: #F2715A;
  --ok: #6CCB9B;
  --todo: #9A6412;
  --todo-bg: #FFF5E0;

  --sans: "Schibsted Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --max: 1100px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
@media (max-width: 600px) { .wrap { padding: 0 16px; } }

.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 5;
  background: rgba(246, 247, 249, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner { display: flex; align-items: center; gap: 24px; height: 60px; }
.brand { font-weight: 700; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; white-space: nowrap; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.nav a:hover { color: var(--ink); }
.lang { display: flex; border: 1px solid var(--line); border-radius: 999px; padding: 2px; background: var(--surface); }
.lang button {
  font: 600 0.8rem var(--sans); border: 0; background: transparent; color: var(--muted);
  padding: 4px 10px; border-radius: 999px; cursor: pointer;
}
.lang button[aria-pressed="true"] { background: var(--ink); color: #fff; }
@media (max-width: 860px) { .nav { display: none; } .lang { margin-left: auto; } }

/* ---------- buttons ---------- */
.actions { display: flex; flex-wrap: wrap; gap: 10px; }
.btn[hidden] { display: none; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font: 600 0.95rem var(--sans);
  padding: 11px 18px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  text-decoration: none; cursor: pointer;
}
.btn:hover { border-color: var(--ink); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #174a3d; }
.btn.ghost { background: transparent; }
.btn.small { padding: 7px 12px; font-size: 0.85rem; }
.btn:disabled { opacity: 0.35; cursor: default; }

/* ---------- hero ---------- */
.hero {
  display: grid; grid-template-columns: 1.5fr 1fr; gap: 56px; align-items: center;
  padding-top: 72px; padding-bottom: 72px;
}
.hero h1 {
  font-size: clamp(2.6rem, 6.4vw, 4.6rem);
  line-height: 1; letter-spacing: -0.035em; font-weight: 700;
  margin: 0 0 18px;
}
.role { font-size: 1.25rem; font-weight: 500; color: var(--accent); margin: 0 0 14px; }
.pitch { font-size: 1.2rem; color: var(--ink); max-width: 34em; margin: 0 0 28px; }
.facts {
  list-style: none; padding: 0; margin: 40px 0 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.facts li { border-top: 2px solid var(--ink); padding-top: 10px; }
.facts strong { display: block; font-size: 1.15rem; }
.facts span { display: block; color: var(--muted); font-size: 0.9rem; line-height: 1.4; }

.portrait { margin: 0; }
.portrait img, .portrait-placeholder {
  width: 100%; aspect-ratio: 1 / 1; object-fit: cover; border-radius: 14px; display: block;
}
.portrait-placeholder { display: flex; align-items: center; justify-content: center; text-align: center; padding: 24px; }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 32px; padding-top: 40px; padding-bottom: 48px; }
  .portrait { max-width: 200px; order: -1; }
  .facts { grid-template-columns: 1fr; gap: 14px; }
}

/* ---------- sections ---------- */
.section { padding-top: 72px; padding-bottom: 72px; border-top: 1px solid var(--line); }
.section h2 { font-size: clamp(1.7rem, 3.2vw, 2.3rem); letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 10px; }
.section h3 { font-size: 1.15rem; margin: 0 0 8px; }
.lead { color: var(--muted); max-width: 40em; margin: 0 0 36px; }
@media (max-width: 600px) { .section { padding-top: 52px; padding-bottom: 52px; } }

.about-body { max-width: 42em; margin-top: 20px; }
.about-body p { margin: 0 0 16px; }
.about-body p:first-child { font-size: 1.2rem; }

/* ---------- skills ---------- */
.skills { display: grid; grid-template-columns: 1fr 1fr; gap: 0 56px; }
.skill { padding: 26px 0; border-top: 1px solid var(--line); }
.skill > p { margin: 0 0 16px; max-width: 34em; }
.tools { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tools li {
  display: inline-flex; align-items: baseline; gap: 6px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 5px 10px;
  font-size: 0.88rem;
}
.tool { font-weight: 600; }
.use { color: var(--muted); }
@media (max-width: 760px) { .skills { grid-template-columns: 1fr; } }

/* ---------- demo ---------- */
.demo-section { background: #E9EDF2; }
.console {
  background: var(--console); color: var(--console-ink);
  border-radius: 14px; overflow: hidden;
  box-shadow: 0 24px 60px -30px rgba(20, 27, 36, 0.6);
}
.steps {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: var(--console-2); border-bottom: 1px solid #2A3544;
}
.steps button {
  width: 100%; display: flex; align-items: center; gap: 10px;
  background: transparent; border: 0; border-bottom: 2px solid transparent;
  color: var(--console-dim); font: 500 0.92rem var(--sans);
  padding: 14px 16px; cursor: pointer; text-align: left;
}
.steps button:hover { color: var(--console-ink); }
.steps button.on { color: #fff; border-bottom-color: var(--hit); }
.steps .n {
  flex: none; width: 22px; height: 22px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid currentColor; font-size: 0.75rem;
}
.steps button.on .n { background: var(--hit); border-color: var(--hit); color: var(--console); }
@media (max-width: 700px) {
  .steps { grid-template-columns: repeat(4, auto); overflow-x: auto; }
  .steps button { padding: 12px; white-space: nowrap; }
}

.console-body { padding: 26px; min-height: 340px; }
.console-body .intro { margin: 0 0 14px; color: var(--console-ink); max-width: 46em; }
.logs { font-family: var(--mono); font-size: 0.82rem; border: 1px solid #2A3544; border-radius: 8px; overflow-x: auto; }
.log {
  display: grid; grid-template-columns: 104px 58px 118px 1fr; gap: 12px;
  padding: 8px 12px; border-bottom: 1px solid #222C39; white-space: nowrap;
  width: 100%; min-width: 720px; text-align: left;
  font: inherit; color: inherit; background: transparent; border-left: 0; border-right: 0; border-top: 0;
}
.log:last-child { border-bottom: 0; }
.log .t, .log .s { color: var(--console-dim); }
.lvl-info .l { color: #8FB4E0; }
.lvl-warn .l { color: var(--hit); }
.lvl-error .l { color: var(--err); font-weight: 600; }
.log.clickable { cursor: pointer; background: rgba(242, 113, 90, 0.1); }
.log.clickable:hover { background: rgba(242, 113, 90, 0.2); }
.log.clickable .m { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(242,113,90,.6); }

.code {
  font-family: var(--mono); font-size: 0.85rem; line-height: 1.6;
  background: #0E141B; border: 1px solid #2A3544; border-radius: 8px;
  padding: 14px 0; margin: 0 0 16px; overflow-x: auto;
}
.code .ln { display: block; padding: 0 16px; }
.code .ln.hit { background: rgba(240, 180, 41, 0.14); box-shadow: inset 3px 0 0 var(--hit); color: #FFE4A3; }
.code .ln.ok { color: var(--ok); }
.flag { color: var(--hit); margin: -4px 0 20px; font-weight: 500; }

.diag { margin: 0; padding-left: 22px; max-width: 46em; font-size: 1.05rem; }
.diag li { margin-bottom: 14px; padding-left: 4px; }
.diag li::marker { color: var(--hit); font-weight: 600; }

.fix { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.fix h4 { margin: 0 0 10px; color: #fff; font-size: 1rem; }
.fix ul { margin: 0 0 16px; padding-left: 20px; }
.fix li { margin-bottom: 6px; }
.fix blockquote {
  margin: 0; padding: 16px 18px; border-left: 3px solid var(--ok);
  background: var(--console-2); border-radius: 0 8px 8px 0; font-size: 1.02rem;
}
@media (max-width: 760px) { .fix { grid-template-columns: 1fr; } .console-body { padding: 18px; } }

.console-foot {
  display: flex; align-items: center; gap: 12px; justify-content: space-between;
  padding: 12px 16px; border-top: 1px solid #2A3544; background: var(--console-2);
}
.console-foot .note { color: var(--console-dim); font-size: 0.82rem; }
@media (max-width: 600px) { .console-foot .note { display: none; } }
.console-foot .btn { background: transparent; color: var(--console-ink); border-color: #3A4656; }
.console-foot .btn.primary { background: var(--hit); border-color: var(--hit); color: var(--console); }

/* ---------- work ---------- */
.work { display: grid; grid-template-columns: 1fr 1fr; gap: 0 56px; }
.work-item { padding: 26px 0; border-top: 1px solid var(--line); }
.work-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 16px; margin-bottom: 6px; }
.work-head h4 { margin: 0; font-size: 1.15rem; }
.work-group { font-size: 1.05rem; color: var(--muted); font-weight: 600; margin: 8px 0 4px; }
.work + .work-group { margin-top: 40px; }
.work-item .btn { margin-top: 4px; }
.kind { color: var(--muted); font-size: 0.88rem; }
.work-item p { margin: 0 0 12px; }
.proves { font-size: 0.95rem; }
.proves span { font-weight: 600; color: var(--accent); margin-right: 4px; }
@media (max-width: 760px) { .work { grid-template-columns: 1fr; } }

/* ---------- path ---------- */
.path-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; margin-top: 28px; }
.path-grid h3 { margin-top: 0; margin-bottom: 16px; }
.path-grid h3:not(:first-child) { margin-top: 36px; }
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li {
  display: grid; grid-template-columns: 120px 1fr; gap: 16px;
  padding: 16px 0; border-top: 1px solid var(--line);
}
.timeline .when { color: var(--muted); font-size: 0.9rem; padding-top: 2px; }
.timeline h4 { margin: 0 0 4px; font-size: 1.05rem; }
.timeline .org { font-weight: 400; color: var(--muted); }
.timeline p { margin: 0; }
.plain { list-style: none; margin: 0; padding: 0; }
.plain li { padding: 10px 0; border-top: 1px solid var(--line); }
.plain strong { display: block; }
.plain span { color: var(--muted); font-size: 0.95rem; }
@media (max-width: 860px) {
  .path-grid { grid-template-columns: 1fr; gap: 24px; }
  .timeline li { grid-template-columns: 1fr; gap: 4px; }
}

/* ---------- contact / footer ---------- */
.contact { padding-bottom: 96px; }
.footer { border-top: 1px solid var(--line); padding: 24px 0; color: var(--muted); font-size: 0.9rem; }

/* ---------- TODO markers (à retirer avant mise en ligne) ---------- */
.todo {
  color: var(--todo); background: var(--todo-bg);
  border: 1.5px dashed #E0B565; border-radius: 8px; font-size: 0.92rem;
}
.todo.block { padding: 14px 16px; margin-top: 12px; }
.todo.block.small { padding: 8px 12px; font-size: 0.85rem; }
.todo.inline { padding: 0 6px; border-radius: 4px; border-width: 1px; }

/* ---------- project page (F1) ---------- */
.back { color: var(--muted); text-decoration: none; font-size: 0.95rem; margin-left: auto; }
.back:hover { color: var(--ink); }
.project-hero { padding-top: 64px; padding-bottom: 48px; }
.project-hero .kind { display: block; margin-bottom: 10px; }
.project-hero h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.05; letter-spacing: -0.03em; margin: 0 0 16px; }
.project-hero .pitch { margin-bottom: 24px; }
.goals { display: grid; grid-template-columns: 1fr 1fr; gap: 0 56px; }
.goal { border-top: 2px solid var(--ink); padding-top: 14px; }
.goal p { margin: 0; }
@media (max-width: 760px) { .goals { grid-template-columns: 1fr; gap: 28px; } }

.arch-wrap { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 16px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.arch { display: block; width: 100%; min-width: 860px; height: auto; font-family: var(--sans); }
.scroll-hint { display: none; color: var(--muted); font-size: 0.88rem; margin: 10px 0 0; }
@media (max-width: 900px) { .scroll-hint { display: block; } }
.d-panel { fill: #EEF1F5; }
.d-panel-l { fill: var(--muted); font-size: 11px; font-weight: 600; }
.d-box rect { fill: #fff; stroke: #9AA5B4; stroke-width: 1.2; }
.d-box.d-key rect { stroke: var(--accent); stroke-width: 2.2; }
.d-t { font-size: 12.5px; font-weight: 700; fill: var(--ink); text-anchor: middle; }
.d-s { font-size: 10.5px; fill: var(--muted); text-anchor: middle; }
.d-line { fill: none; stroke: var(--ink); stroke-width: 1.3; }
.d-line.d-same { stroke: var(--accent); stroke-width: 1.6; stroke-dasharray: 5 4; }
.d-line.d-dash { stroke: var(--muted); stroke-dasharray: 4 4; }
.d-head { fill: var(--ink); }
.d-head-acc { fill: var(--accent); }
.d-l { font-size: 10.5px; fill: var(--ink); }
.d-l.d-acc { fill: var(--accent); font-weight: 700; }

.shot { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.shot img { display: block; width: 100%; max-width: 780px; height: auto; margin: 0 auto; }
.choices { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 40px; }
.choices li { border-top: 1px solid var(--line); padding-top: 16px; }
.choices p { margin: 0; }
@media (max-width: 860px) { .choices { grid-template-columns: 1fr; gap: 20px; } }
.back { white-space: nowrap; }
@media (max-width: 480px) { body[data-page="f1"] .brand { display: none; } body[data-page="f1"] .back { margin-left: 0; } body[data-page="f1"] .lang { margin-left: auto; } }