:root {
  color-scheme: light;

  --page: #f4f6f9;
  --surface: #ffffff;
  --ink: #0f172a;
  --ink-2: #475569;
  --muted: #64748b;
  --hairline: #e2e8f0;
  --axis: #cbd5e1;
  --ring-line: #d6deea;
  --accent: #1c5cab;
  --accent-soft: #e8f0fb;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 6px 20px rgba(15, 23, 42, 0.05);

  /* Anneaux : pastille + couleur du numéro */
  --ring-0: #104281;  --ring-0-ink: #ffffff;
  --ring-1: #256abf;  --ring-1-ink: #ffffff;
  --ring-2: #5598e7;  --ring-2-ink: #0b1b33;
  --ring-3: #86b6ef;  --ring-3-ink: #0b1b33;

  /* Fonds des anneaux sur le radar */
  --ring-bg-0: #e6eef9;
  --ring-bg-1: #edf3fa;
  --ring-bg-2: #f3f7fc;
  --ring-bg-3: #f9fbfe;

  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;

    --page: #0e131a;
    --surface: #151b24;
    --ink: #e8edf4;
    --ink-2: #b3bdca;
    --muted: #8592a3;
    --hairline: #243042;
    --axis: #334155;
    --ring-line: #2b3749;
    --accent: #86b6ef;
    --accent-soft: #1d2b40;
    --shadow: none;

    --ring-0: #9ec5f4;  --ring-0-ink: #0b1b33;
    --ring-1: #6da7ec;  --ring-1-ink: #0b1b33;
    --ring-2: #3987e5;  --ring-2-ink: #06101f;
    --ring-3: #1c5cab;  --ring-3-ink: #ffffff;

    --ring-bg-0: #1e293a;
    --ring-bg-1: #1b2433;
    --ring-bg-2: #19212d;
    --ring-bg-3: #171e29;
  }
}

/* ---------- Base ---------- */

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 15px/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

code {
  font-size: 0.9em;
  padding: 1px 5px;
  border-radius: 4px;
  background: var(--accent-soft);
}

.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 clamp(16px, 3vw, 32px);
}

.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

button { font: inherit; color: inherit; }

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

/* ---------- En-tête : titre à gauche, accroche à droite ---------- */

.site-header {
  display: grid;
  gap: 18px 48px;
  align-items: end;
  padding: clamp(28px, 5vw, 56px) 0 clamp(20px, 3vw, 28px);
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-size: clamp(28px, 1.6vw + 20px, 42px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  text-wrap: balance;
}

.meta {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.headline-text {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(16px, 0.4vw + 14.5px, 19px);
  line-height: 1.5;
  color: var(--ink-2);
  text-wrap: pretty;
}

.text-link {
  display: inline-block;
  margin-top: 10px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
}
.text-link:hover { text-decoration: underline; text-underline-offset: 3px; }

@media (min-width: 860px) {
  .site-header { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .headline {
    padding-left: 32px;
    border-left: 2px solid var(--hairline);
  }
}

/* ---------- Projets ---------- */

.projects {
  padding: 16px 0 20px;
  border-top: 1px solid var(--hairline);
  scroll-margin-top: 12px;
}

.projects-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
}

.projects-label {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--surface);
  font-size: 14px;
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}
.chip:hover { border-color: var(--axis); }
.chip-meta { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--surface); }
.chip[aria-pressed="true"] .chip-meta { color: inherit; opacity: 0.7; }

.project-panel {
  margin-top: 14px;
  padding: 16px 20px 18px;
}

.panel-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.panel-head h3 { margin: 0; font-size: 17px; letter-spacing: -0.01em; }
.panel-meta { margin: 2px 0 0; font-size: 13px; color: var(--muted); }
.panel-desc { margin: 10px 0 0; max-width: 80ch; color: var(--ink-2); }
.panel-sub {
  margin: 14px 0 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.icon-btn {
  flex: none;
  width: 32px;
  height: 32px;
  border: 1px solid var(--hairline);
  border-radius: 50%;
  background: var(--surface);
  font-size: 18px;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
}
.icon-btn:hover { color: var(--ink); border-color: var(--axis); }

.stack { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.stack-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px 3px 4px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  font-size: 13px;
  cursor: default;
}
.stack-item.is-off { padding-left: 10px; color: var(--muted); border-style: dashed; }
.stack-item.is-hover { background: var(--accent-soft); border-color: var(--axis); }

.notice { margin: 0 0 20px; padding: 14px 18px; color: var(--ink-2); }

/* ---------- Grille principale ---------- */

.board {
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas: "radar" "q2" "q3" "q1" "q0";
  padding-bottom: 8px;
}
.radar-card { grid-area: radar; }
#legend-0 { grid-area: q0; }
#legend-1 { grid-area: q1; }
#legend-2 { grid-area: q2; }
#legend-3 { grid-area: q3; }

/* Tablette : radar pleine largeur, légendes en 2×2 (même disposition que les quarts) */
@media (min-width: 720px) {
  .board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-areas: "radar radar" "q2 q3" "q1 q0";
  }
}

/* Desktop : légendes autour du radar, chaque légende à côté de son quart */
@media (min-width: 1240px) {
  .board {
    grid-template-columns: minmax(300px, 1fr) minmax(0, 720px) minmax(300px, 1fr);
    grid-template-areas: "q2 radar q3" "q1 radar q0";
  }
  #legend-2, #legend-3 { align-self: start; }
  #legend-1, #legend-0 { align-self: end; }
}

/* ---------- Radar ---------- */

.radar-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(10px, 2vw, 22px);
}

#radar {
  display: block;
  width: 100%;
  max-width: 720px;
  height: auto;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  font-family: var(--font);
  opacity: 0;
  transition: opacity 0.35s ease;
}
.is-ready #radar { opacity: 1; }

.ring-bg-0 { fill: var(--ring-bg-0); }
.ring-bg-1 { fill: var(--ring-bg-1); }
.ring-bg-2 { fill: var(--ring-bg-2); }
.ring-bg-3 { fill: var(--ring-bg-3); }
.ring-line { fill: none; stroke: var(--ring-line); stroke-width: 1; }
.axis { stroke: var(--axis); stroke-width: 1; }

.ring-label {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  fill: var(--muted);
  paint-order: stroke;
  stroke-width: 6px;
  stroke-linejoin: round;
  pointer-events: none;
  user-select: none;
}
.ring-label-0 { stroke: var(--ring-bg-0); }
.ring-label-1 { stroke: var(--ring-bg-1); }
.ring-label-2 { stroke: var(--ring-bg-2); }
.ring-label-3 { stroke: var(--ring-bg-3); }

.quadrant-label {
  font-size: 17px;
  font-weight: 650;
  letter-spacing: -0.01em;
  fill: var(--ink);
  pointer-events: none;
  user-select: none;
}

/* Couleur portée par l'anneau : pastilles, numéros, points */
.ring-0 { --c: var(--ring-0); --c-ink: var(--ring-0-ink); }
.ring-1 { --c: var(--ring-1); --c-ink: var(--ring-1-ink); }
.ring-2 { --c: var(--ring-2); --c-ink: var(--ring-2-ink); }
.ring-3 { --c: var(--ring-3); --c-ink: var(--ring-3-ink); }
.is-inactive { --c: var(--axis); --c-ink: var(--ink-2); }

.blip { cursor: pointer; outline: none; transition: opacity 0.2s ease; }
.blip-shape {
  transform-box: fill-box;
  transform-origin: center;
  transition: transform 0.15s ease;
}
.blip-mark { fill: var(--c); stroke: var(--surface); stroke-width: 2; }
.blip-num {
  fill: var(--c-ink);
  font-size: 11px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
  user-select: none;
}
.blip.is-hover .blip-shape,
.blip:focus-visible .blip-shape { transform: scale(1.3); }
.blip.is-hover .blip-mark { stroke: var(--ink); stroke-width: 1.5; }
.blip:focus-visible .blip-mark { stroke: var(--accent); stroke-width: 2.5; }

/* Mise en avant d'un projet : le reste s'efface */
.board.has-focus .blip:not(.in-focus):not(.is-hover) { opacity: 0.14; }
.board.has-focus .item:not(.in-focus):not(.is-hover) { opacity: 0.35; }
.board.has-focus .item.in-focus .label { font-weight: 600; }

/* Zoom par quadrant : uniquement sur petit écran */
.zoom {
  display: flex;
  gap: 6px;
  align-self: stretch;
  margin: 2px 0 10px;
  padding-bottom: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.zoom::-webkit-scrollbar { display: none; }
.zoom button {
  flex: none;
  padding: 5px 12px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--surface);
  font-size: 12.5px;
  color: var(--ink-2);
  cursor: pointer;
}
.zoom button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--surface); }
@media (min-width: 720px) { .zoom { display: none; } }

.ring-key {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 18px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--ink-2);
}
.ring-key li { display: inline-flex; align-items: center; gap: 7px; }

.radar-caption {
  margin: 6px 0 0;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}

.dot {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c);
}

/* ---------- Légendes par quadrant ---------- */

.quadrant { padding: 18px 18px 8px; }

.q-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.q-head h2 { margin: 0; font-size: 16px; font-weight: 650; letter-spacing: -0.01em; }
.q-icon { flex: none; width: 16px; height: 16px; }
.q-icon circle { fill: none; stroke: var(--axis); stroke-width: 1.5; }
.q-icon path { fill: var(--accent); }
.q-count {
  margin-left: auto;
  min-width: 26px;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  font-size: 12px;
  font-weight: 600;
  text-align: center;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.q-rings { columns: 2 116px; column-gap: 16px; }

.ring-group { break-inside: avoid; margin: 0 0 12px; }
.ring-group h3 {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 0 0 4px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.ring-group h3 .dot { width: 8px; height: 8px; }
.ring-group ol { margin: 0; padding: 0; list-style: none; }

.item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 0 -5px;
  padding: 2px 5px;
  border-radius: 6px;
  font-size: 13.5px;
  line-height: 19px;
  cursor: default;
  transition: opacity 0.2s ease, background-color 0.15s;
}
.item.is-hover { background: var(--accent-soft); }
.item .label { min-width: 0; overflow-wrap: anywhere; color: inherit; }
.item a.label { text-decoration: underline; text-decoration-color: var(--axis); text-underline-offset: 3px; }

.num {
  flex: none;
  min-width: 21px;
  height: 19px;
  padding: 0 4px;
  border-radius: 10px;
  background: var(--c);
  color: var(--c-ink);
  font-size: 10.5px;
  font-weight: 650;
  line-height: 19px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

/* ---------- Infobulle ---------- */

.tooltip {
  position: fixed;
  z-index: 20;
  max-width: 260px;
  padding: 8px 12px 9px;
  border-radius: 10px;
  background: var(--ink);
  color: var(--surface);
  font-size: 13px;
  line-height: 1.4;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.22);
  pointer-events: none;
}
.tip-title { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.tip-meta { margin-top: 3px; font-size: 12px; opacity: 0.75; }
.tip-note { margin-top: 6px; }
.tooltip.is-pinned { pointer-events: auto; }
.tip-link {
  display: inline-block;
  margin-top: 6px;
  color: inherit;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.tip-hint { margin-top: 6px; font-size: 12px; opacity: 0.6; }

/* ---------- Bas de page ---------- */

.about {
  display: grid;
  gap: 8px 56px;
  margin-top: 28px;
  padding: 32px 0 8px;
  border-top: 1px solid var(--hairline);
  color: var(--ink-2);
}
.about h2 { margin: 0 0 10px; font-size: 18px; color: var(--ink); letter-spacing: -0.01em; }
.about p { margin: 0 0 14px; max-width: 68ch; }
@media (min-width: 860px) { .about { grid-template-columns: 1fr 1fr; } }

.ring-desc { display: grid; gap: 10px; margin: 4px 0 16px; padding: 0; list-style: none; }
.ring-desc li {
  display: grid;
  grid-template-columns: 10px 1fr;
  gap: 0 10px;
}
.ring-desc .dot { margin-top: 7px; }
.ring-desc strong { color: var(--ink); font-weight: 600; }
.ring-desc-text { grid-column: 2; }

.site-footer {
  padding: 18px 0 40px;
  font-size: 12.5px;
  color: var(--muted);
}

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