/* elqio.com — feuille de style unique. Aucune ressource externe. */

/* ---------- Jetons ---------- */
:root {
  --bg: #06090d;
  --bg-2: #0c1218;
  --bg-3: #121a22;
  --line: rgba(188, 212, 236, .16);
  --line-strong: rgba(188, 212, 236, .34);
  --fg: #e4ecf4;
  --fg-2: #9aa9b8;
  --fg-3: #6b7a89;
  --accent: #a9d6ff;
  --accent-ink: #06090d;
  --accent-soft: rgba(169, 214, 255, .14);
  --accent-line: rgba(169, 214, 255, .45);
  --noise: #3a4653;
  --warn: #ffd37a;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Liberation Sans", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", "DejaVu Sans Mono", monospace;
  --measure: 64ch;
  --gutter: clamp(16px, 5vw, 72px);
  --wide: 76rem;
  --radius: 4px;
  --t: 180ms;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #f2f5f8; --bg-2: #ffffff; --bg-3: #e6ecf2;
  --line: rgba(8, 28, 48, .14); --line-strong: rgba(8, 28, 48, .32);
  --fg: #0b141d; --fg-2: #46566a; --fg-3: #6f7f90;
  --accent: #0a5fbf; --accent-ink: #ffffff;
  --accent-soft: rgba(10, 95, 191, .10); --accent-line: rgba(10, 95, 191, .45);
  --noise: #b7c3cf; --warn: #8a5a00;
  color-scheme: light;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 4.5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 400 1.0625rem/1.6 var(--sans);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  min-height: 100vh; display: flex; flex-direction: column;
}
main { flex: 1 0 auto; }
a { color: var(--fg); text-decoration-color: var(--line-strong); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--accent); color: var(--accent-ink); }
img, svg { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { font-weight: 500; line-height: 1.12; letter-spacing: -.02em; margin: 0 0 .6em; text-wrap: balance; }
h1 { font-size: clamp(2.4rem, 6.5vw, 4.6rem); letter-spacing: -.035em; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.45rem); font-weight: 600; letter-spacing: -.01em; }
h4 { font-size: 1.05rem; font-weight: 600; letter-spacing: 0; }
p, ul, ol, dl { margin: 0 0 1.1em; max-width: var(--measure); }
p.lead { font-size: clamp(1.15rem, 1.6vw, 1.35rem); line-height: 1.5; color: var(--fg); }
.muted { color: var(--fg-2); }
.mono, code, kbd, .id { font-family: var(--mono); font-size: .92em; letter-spacing: 0; }
code { background: var(--bg-3); padding: .1em .35em; border-radius: 3px; }
hr { border: 0; border-top: 1px solid var(--line); margin: 3rem 0; }
.skip { position: absolute; left: 1rem; top: -4rem; background: var(--accent); color: var(--accent-ink); padding: .5rem .9rem; border-radius: var(--radius); z-index: 100; }
.skip:focus { top: 1rem; }

/* ---------- Marque ---------- */
.wordmark { font-family: var(--sans); font-weight: 600; letter-spacing: -.045em; line-height: 1; display: inline-flex; align-items: baseline; font-size: 1.5rem; color: var(--fg); }
.wordmark .dot { display: inline-block; width: .22em; height: .22em; background: var(--accent); margin-left: .07em; transform: translateY(-.02em); }
.wordmark.small { font-size: 1.25rem; }
.brand { text-decoration: none; }

/* ---------- En-tête ---------- */
.site-head {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .9rem var(--gutter);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: clamp(.9rem, 2vw, 1.8rem); max-width: none; }
.site-nav a { text-decoration: none; color: var(--fg-2); font-size: .98rem; padding: .35rem 0; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--fg); }
.site-nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--accent); }
.nav-lang a { font-family: var(--mono); font-size: .9rem; border: 1px solid var(--line-strong); border-radius: var(--radius); padding: .25rem .5rem; }
.nav-toggle { display: none; }
.theme-toggle {
  width: 2.25rem; height: 2.25rem; border-radius: 50%; border: 1px solid var(--line-strong); background: transparent;
  cursor: pointer; display: grid; place-items: center; color: var(--fg);
}
.theme-toggle:hover { border-color: var(--accent); }
.theme-ico { width: .9rem; height: .9rem; border-radius: 50%; background: linear-gradient(90deg, var(--fg) 50%, transparent 50%); border: 1.5px solid var(--fg); }
@media (max-width: 760px) {
  .nav-toggle { display: inline-block; background: transparent; color: var(--fg); border: 1px solid var(--line-strong); border-radius: var(--radius); padding: .45rem .8rem; font: inherit; font-size: .95rem; cursor: pointer; min-height: 44px; }
  .site-nav ul { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg-2); border-bottom: 1px solid var(--line); padding: .5rem var(--gutter) 1rem; }
  .site-nav ul.open { display: flex; }
  .site-nav li a { display: block; padding: .8rem 0; font-size: 1.1rem; min-height: 44px; }
  .site-nav a[aria-current="page"] { box-shadow: none; color: var(--accent); }
  .nav-lang a { display: inline-block; margin-top: .6rem; }
  .nav-theme { padding-top: .6rem; }
}

/* ---------- Grille et sections ---------- */
.wrap { width: 100%; max-width: var(--wide); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
section { padding: clamp(3.5rem, 8vw, 7rem) 0; }
section + section { border-top: 1px solid var(--line); }
.section-head { margin-bottom: clamp(1.5rem, 3vw, 2.5rem); }
.section-head .kicker { color: var(--fg-2); margin: 0 0 .4rem; font-size: .98rem; }
.split { display: grid; gap: clamp(1.5rem, 4vw, 4rem); align-items: start; }
@media (min-width: 900px) { .split { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); } .split.even { grid-template-columns: 1fr 1fr; } }
.cols-3 { display: grid; gap: clamp(1.5rem, 3vw, 2.5rem); }
@media (min-width: 760px) { .cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.cols-2 { display: grid; gap: clamp(1.5rem, 3vw, 2.5rem); }
@media (min-width: 760px) { .cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ---------- Le fragment (motif) ---------- */
.frag-list { list-style: none; padding: 0; }
.frag-list li { position: relative; padding-left: 1.4rem; margin-bottom: .55em; }
.frag-list li::before { content: ""; position: absolute; left: 0; top: .62em; width: .5rem; height: .5rem; background: var(--accent); }
.frag-list.quiet li::before { background: var(--fg-3); }
.frag-row { display: inline-flex; gap: 3px; vertical-align: middle; }
.frag-row i { width: 7px; height: 7px; background: var(--accent); display: inline-block; }
.frag-row i.off { background: var(--noise); }

/* ---------- Boutons ---------- */
.btn { display: inline-flex; align-items: center; gap: .5rem; min-height: 44px; padding: .65rem 1.15rem; border-radius: var(--radius);
  font: inherit; font-weight: 500; text-decoration: none; cursor: pointer; border: 1px solid var(--line-strong); background: transparent; color: var(--fg);
  transition: border-color var(--t), background var(--t), color var(--t); }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.06); }
.btn-row { display: flex; flex-wrap: wrap; gap: .75rem; margin: 1.5rem 0 0; }

/* ---------- Statuts ---------- */
.status { display: inline-flex; align-items: center; gap: .5rem; font-family: var(--mono); font-size: .85rem; color: var(--fg-2); white-space: nowrap; }
.status::before { content: ""; width: .7rem; height: .7rem; border: 1.5px solid var(--fg-2); flex: none; }
.status.done { color: var(--fg); }
.status.done::before { background: var(--accent); border-color: var(--accent); }
.status.doing::before { background: linear-gradient(90deg, var(--accent) 50%, transparent 50%); border-color: var(--accent); }
.status.todo::before { border-style: dashed; }
.status.study::before { border-style: dotted; }

/* ---------- Héros ---------- */
.hero { padding: clamp(3rem, 8vw, 6.5rem) 0 clamp(2rem, 5vw, 4rem); border-bottom: 0; }
.hero .wordmark.giant { font-size: clamp(4.5rem, 16vw, 11rem); letter-spacing: -.06em; font-weight: 600; margin-left: -.04em; }
.hero .wordmark.giant .dot { width: .17em; height: .17em; margin-left: .06em; transform: translateY(-.03em); }
.hero .tagline { font-size: clamp(1.5rem, 3.4vw, 2.6rem); font-weight: 500; letter-spacing: -.025em; line-height: 1.15; margin: 1.2rem 0 .35rem; max-width: 24ch; }
.hero .subline { font-size: clamp(1.05rem, 1.7vw, 1.3rem); color: var(--fg-2); margin: 0 0 2rem; }
.hero .lead { max-width: 58ch; }
.hero-grid { display: grid; gap: clamp(2rem, 4vw, 4rem); align-items: end; }
@media (min-width: 1000px) { .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }

/* Schéma d'ouverture : capté / avec elqio. */
.capture { margin-top: clamp(1.5rem, 4vw, 3rem); }
.switch { display: inline-flex; border: 1px solid var(--line-strong); border-radius: var(--radius); overflow: hidden; margin-bottom: 1rem; }
.switch button { font: inherit; font-size: .95rem; background: transparent; color: var(--fg-2); border: 0; padding: .55rem 1rem; cursor: pointer; min-height: 44px; }
.switch button + button { border-left: 1px solid var(--line-strong); }
.switch button[aria-pressed="true"] { background: var(--fg); color: var(--bg); }
.capture figure { margin: 0; }
.capture figcaption { color: var(--fg-2); font-size: .95rem; margin-top: .7rem; max-width: var(--measure); }
.capture .state-text { display: none; }
[data-state="today"] .state-text.today, [data-state="elqio"] .state-text.elqio { display: block; }
#capture-scene .only-today, #capture-scene .only-elqio { transition: opacity 400ms ease; }
#capture-scene[data-state="today"] .only-elqio { opacity: 0; }
#capture-scene[data-state="elqio"] .only-today { opacity: 0; }

/* ---------- Schémas SVG ---------- */
.diagram { margin: 0; background: var(--bg-2); border: 1px solid var(--line); border-radius: 6px; padding: clamp(.75rem, 2vw, 1.5rem); }
.diagram svg { width: 100%; height: auto; }
.diagram figcaption { color: var(--fg-2); font-size: .92rem; margin-top: .75rem; }
.sv-line { stroke: var(--fg-2); fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.sv-thin { stroke: var(--line-strong); fill: none; stroke-width: 1; }
.sv-fg { fill: var(--fg); }
.sv-fg2 { fill: var(--fg-2); }
.sv-acc { fill: var(--accent); }
.sv-acc-line { stroke: var(--accent); fill: none; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.sv-acc-soft { fill: var(--accent-soft); }
.sv-box { fill: var(--bg-3); stroke: var(--line-strong); stroke-width: 1; }
.sv-box-acc { fill: var(--accent-soft); stroke: var(--accent-line); stroke-width: 1; }
.sv-noise { fill: var(--noise); }
.sv-text { font-family: var(--sans); font-size: 12px; fill: var(--fg-2); }
.sv-text.strong { fill: var(--fg); font-weight: 500; }
.sv-mono { font-family: var(--mono); font-size: 11px; fill: var(--fg); }
.sv-mono.dim { fill: var(--fg-3); }
.sv-dash { stroke-dasharray: 4 4; }
.sv-cross { stroke: var(--fg); stroke-width: 2.5; stroke-linecap: round; }
.sv-warn { stroke: var(--warn); fill: none; stroke-width: 1.5; }

/* ---------- Forces (accueil + protocole) ---------- */
.force { padding: clamp(2.5rem, 6vw, 5rem) 0; border-top: 1px solid var(--line); }
.force:first-of-type { border-top: 0; }
.num { font-family: var(--mono); color: var(--fg-2); font-size: .95rem; margin-bottom: .6rem; display: block; }
.force h3 { font-size: clamp(1.35rem, 2.4vw, 1.8rem); font-weight: 500; letter-spacing: -.02em; }
.force .tech { font-family: var(--mono); font-size: .86rem; color: var(--fg-2); line-height: 1.7; margin-top: 1.2rem; padding-top: 1rem; border-top: 1px solid var(--line); max-width: var(--measure); }
.force .tech b { color: var(--fg); font-weight: 500; }
.force .more { margin-top: 1rem; }

/* ---------- Identifiant ---------- */
.id-sample { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 1rem; margin: 1rem 0; }
.id-sample .id { font-size: clamp(.95rem, 1.6vw, 1.15rem); background: var(--bg-3); padding: .5rem .75rem; border-radius: var(--radius); border: 1px solid var(--line); letter-spacing: .02em; word-break: break-all; }
.id-sample button { font: inherit; font-size: .9rem; background: transparent; border: 1px solid var(--line-strong); color: var(--fg); border-radius: var(--radius); padding: .4rem .8rem; cursor: pointer; min-height: 40px; }

/* ---------- Scènes 3D ---------- */
.capture .scene-img { position: relative; aspect-ratio: 16 / 9; border-radius: 6px; overflow: hidden; border: 1px solid var(--line); background: var(--bg-2); }
.capture .scene-img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: opacity 500ms ease; }
#capture-scene[data-state="today"] img.only-elqio, #capture-scene[data-state="elqio"] img.only-today { opacity: 0; }
.scene-img img.for-light { display: none; }
:root[data-theme="light"] .scene-img img.for-dark { display: none; }
:root[data-theme="light"] .scene-img img.for-light { display: block; }
.scene.photo { padding: 0; overflow: hidden; }
.scene.photo img { width: 100%; height: auto; display: block; }
.scene.photo figcaption { padding: .75rem 1rem 1rem; margin-top: 0; }
.banner { margin: 0 0 clamp(1.5rem, 3vw, 2.5rem); border-radius: 6px; overflow: hidden; border: 1px solid var(--line); background: var(--bg-2); }
.banner img { width: 100%; height: auto; display: block; }
.banner figcaption { color: var(--fg-2); font-size: .92rem; padding: .75rem 1rem 1rem; }

/* ---------- Devices ---------- */
.device { padding: clamp(2rem, 5vw, 4rem) 0; border-top: 1px solid var(--line); }
.device:first-of-type { border-top: 0; }
.device .level { font-family: var(--mono); color: var(--fg-2); font-size: .95rem; margin-bottom: .5rem; display: block; }
.device .trust { margin-top: 1rem; padding: .9rem 1rem; border-left: 2px solid var(--accent); background: var(--bg-2); max-width: var(--measure); }
.device .trust p { margin: 0; }
.scene { background: var(--bg-2); border: 1px solid var(--line); border-radius: 6px; padding: clamp(.75rem, 2vw, 1.5rem); margin: 0; }
.scene svg { width: 100%; height: auto; }
.scene figcaption { color: var(--fg-2); font-size: .92rem; margin-top: .75rem; }

/* ---------- Feuille de route ---------- */
.timeline { list-style: none; padding: 0; margin: 0; max-width: none; }
.timeline li { display: grid; grid-template-columns: 9rem 1fr; gap: 1rem 1.5rem; padding: 1.1rem 0; border-top: 1px solid var(--line); align-items: start; }
.timeline li:last-child { border-bottom: 1px solid var(--line); }
.timeline .when { font-family: var(--mono); font-size: .9rem; color: var(--fg-2); padding-top: .2rem; }
.timeline .what h3, .timeline .what h4 { margin-bottom: .25rem; }
.timeline .what p { margin-bottom: .4em; color: var(--fg-2); }
.timeline .what p:last-child { margin-bottom: 0; }
.timeline .status { margin-top: .35rem; }
@media (max-width: 600px) { .timeline li { grid-template-columns: 1fr; gap: .3rem; } }
.legend { display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; margin: 0 0 1.5rem; }

/* ---------- Tableaux ---------- */
table { border-collapse: collapse; width: 100%; max-width: var(--wide); font-size: .98rem; margin: 1rem 0 1.5rem; }
th, td { text-align: left; padding: .7rem .8rem; border-top: 1px solid var(--line); vertical-align: top; }
th { color: var(--fg-2); font-weight: 500; }
tbody tr:last-child td { border-bottom: 1px solid var(--line); }
.table-wrap { overflow-x: auto; }

/* ---------- Encadrés ---------- */
.note { border-left: 2px solid var(--accent); padding: .8rem 1rem; background: var(--bg-2); max-width: var(--measure); margin: 1.5rem 0; }
.note p:last-child { margin-bottom: 0; }
.todo-box { border: 1px dashed var(--line-strong); padding: .8rem 1rem; max-width: var(--measure); border-radius: var(--radius); color: var(--fg-2); }
dl.facts { display: grid; grid-template-columns: max-content 1fr; gap: .4rem 1.5rem; max-width: none; }
dl.facts dt { color: var(--fg-2); }
dl.facts dd { margin: 0; }
@media (max-width: 600px) { dl.facts { grid-template-columns: 1fr; gap: 0 } dl.facts dd { margin-bottom: .6rem; } }

/* ---------- Pied ---------- */
.site-foot { border-top: 1px solid var(--line); padding: clamp(2.5rem, 5vw, 4rem) var(--gutter); color: var(--fg-2); font-size: .95rem; }
.foot-grid { max-width: var(--wide); margin: 0 auto; display: grid; gap: 2rem; }
@media (min-width: 760px) { .foot-grid { grid-template-columns: 1.2fr 1fr 1.2fr; } }
.foot-nav ul { list-style: none; margin: 0; padding: 0; }
.foot-nav li { margin-bottom: .4rem; }
.foot-nav a { color: var(--fg-2); text-decoration: none; }
.foot-nav a:hover { color: var(--fg); }
.tagline-foot { color: var(--fg); margin: .6rem 0 .2rem; font-weight: 500; }
.site-foot p { margin-bottom: .5rem; }

/* ---------- Page style ---------- */
.swatches { display: grid; grid-template-columns: repeat(auto-fill, minmax(9rem, 1fr)); gap: .75rem; max-width: none; margin-bottom: 1.5rem; }
.swatch { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.swatch i { display: block; height: 3.5rem; }
.swatch span { display: block; padding: .5rem .6rem; font-family: var(--mono); font-size: .8rem; color: var(--fg-2); }
.type-sample > * { margin-bottom: .6rem; }
.motifs { display: grid; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); gap: 1rem; max-width: none; }
.motifs figure { margin: 0; border: 1px solid var(--line); padding: 1rem; border-radius: var(--radius); background: var(--bg-2); }
.motifs figcaption { color: var(--fg-2); font-size: .9rem; margin-top: .6rem; }

/* ---------- Page d'erreur ---------- */
.error-page { padding: clamp(4rem, 12vw, 9rem) 0; }
.error-page .id { color: var(--fg-2); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
.page-head { padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(1.5rem, 3vw, 2.5rem); border-bottom: 0; }
.page-head h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
.page-head .lead { color: var(--fg-2); }
.toc { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; max-width: none; margin-top: 1.5rem; }
.toc a { color: var(--fg-2); text-decoration: none; font-size: .95rem; padding: .3rem 0; }
.toc a:hover { color: var(--fg); }
.toc li::before { content: ""; display: inline-block; width: .4rem; height: .4rem; background: var(--accent); margin-right: .5rem; vertical-align: middle; }