/* Jetons KyberNow (identité v2). Thème sombre par défaut, clair avec [data-theme="light"].
   Signal : Spectre. */
:root {
  /* Neutres */
  --kn-ink-0: #05070A;   /* fond */
  --kn-ink-1: #090D12;   /* bande */
  --kn-ink-2: #0E141A;   /* surface */
  --kn-ink-3: #141B23;   /* relief */
  --kn-line: #1E2832;
  --kn-line-2: #2B3742;
  --kn-frost: #E3EDF0;   /* texte */
  --kn-frost-2: #B4C2C9; /* texte secondaire */
  --kn-mist: #8A99A3;    /* discret */
  --kn-faint: #65737E;   /* filigrane, 12 px et plus */

  /* Signal : Spectre */
  --kn-signal: #9A8CFF;
  --kn-signal-strong: #6D5BFF;
  --kn-on-signal: #FFFFFF;
  --kn-signal-light: #5340E6; /* sur fond clair */
  --kn-signal-soft: color-mix(in oklab, var(--kn-signal) 14%, transparent);
  --kn-signal-line: color-mix(in oklab, var(--kn-signal) 45%, transparent);

  /* Lumière : le néon (voir la section Lumière de la charte) */
  --kn-neon-core: #F4F1FF;
  /* 1 · veille : survol, focus */
  --kn-glow-1: drop-shadow(0 0 2px rgb(154 140 255 / .8)) drop-shadow(0 0 8px rgb(109 91 255 / .45));
  /* 2 · allumé : actif (connexion, flux, mesure en direct), respire sur 3,2 s */
  --kn-glow-2: drop-shadow(0 0 1px #F4F1FF) drop-shadow(0 0 5px #9A8CFF) drop-shadow(0 0 16px rgb(109 91 255 / .8));
  /* 3 · éclair : clic, retombe en 400 ms */
  --kn-glow-3: drop-shadow(0 0 2px #FFFFFF) drop-shadow(0 0 9px #9A8CFF) drop-shadow(0 0 28px #6D5BFF);
  --kn-t-ignite: 1s;
  --kn-t-breathe: 3.2s;

  /* États (jamais le signal) */
  --kn-ok: #4CD68A;
  --kn-warn: #F5B841;
  --kn-bad: #FF6B6B;

  /* Typographie */
  --kn-font-display: "Archivo", "Helvetica Neue", Arial, sans-serif; /* avec font-stretch: 125% */
  --kn-font-text: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --kn-font-mono: "Martian Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Espace (grille de 4) */
  --kn-s-1: 4px; --kn-s-2: 8px; --kn-s-3: 12px; --kn-s-4: 16px;
  --kn-s-6: 24px; --kn-s-8: 32px; --kn-s-12: 48px; --kn-s-16: 64px;

  /* Formes */
  --kn-r-control: 6px;
  --kn-r-field: 10px;
  --kn-r-card: 16px;
  --kn-r-sheet: 22px;
  --kn-chamfer: 10px;      /* coin de signal d'un bouton */
  --kn-chamfer-card: 22px; /* coin de signal d'une carte vedette */
  --kn-seam: 6px;          /* largeur de la couture */

  /* Mouvement */
  --kn-ease-out: cubic-bezier(.2, .9, .1, 1);
  --kn-ease-sym: cubic-bezier(.6, 0, .2, 1);
  --kn-t-state: 120ms;
  --kn-t-hover: 200ms;
  --kn-t-enter: 320ms;
  --kn-t-join: 420ms;

  color-scheme: dark;
}

[data-theme="light"] {
  --kn-ink-0: #F2F5F6;
  --kn-ink-1: #E8EDEF;
  --kn-ink-2: #FFFFFF;
  --kn-ink-3: #F6F8F9;
  --kn-line: #D8E0E4;
  --kn-line-2: #C3CED4;
  --kn-frost: #0B1117;
  --kn-frost-2: #2F3B45;
  --kn-mist: #55636E;
  --kn-faint: #74828D;
  --kn-signal: var(--kn-signal-light);
  --kn-signal-strong: var(--kn-signal-light);
  --kn-on-signal: #FFFFFF;
  --kn-ok: #138A4E;
  --kn-warn: #A86A00;
  --kn-bad: #C93A3A;
  color-scheme: light;
}

/* Bouton principal : pan coupé à 45° dessiné en dégradé (pas de clip-path, pour que la lueur
   suive sa forme) ; le pan devient un liseré de néon dès qu'il s'allume. Un seul par écran. */
.kn-primary {
  --kn-edge: var(--kn-signal-strong);
  background: linear-gradient(315deg, transparent 7px, var(--kn-edge) 7px, var(--kn-edge) 8.6px, var(--kn-signal-strong) 8.6px);
  border-radius: var(--kn-r-control) var(--kn-r-control) 0 var(--kn-r-control);
  color: var(--kn-on-signal);
  transition: filter var(--kn-t-hover) ease-out;
}
.kn-primary:hover, .kn-primary:focus-visible { --kn-edge: var(--kn-neon-core); filter: var(--kn-glow-1); }
.kn-primary:active { filter: var(--kn-glow-3); transition-duration: 40ms; }
.kn-primary.is-lit { --kn-edge: var(--kn-neon-core); filter: var(--kn-glow-2); animation: kn-breathe var(--kn-t-breathe) ease-in-out infinite; }
.kn-ignite { animation: kn-ignite var(--kn-t-ignite) linear both; }

@keyframes kn-ignite {
  0% { filter: none; } 6% { filter: var(--kn-glow-3); } 10% { filter: none; } 16% { filter: var(--kn-glow-2); }
  22% { filter: none; } 30% { filter: var(--kn-glow-3); } 34% { filter: var(--kn-glow-1); } 44%, 100% { filter: var(--kn-glow-2); }
}
@keyframes kn-breathe { 0%, 100% { filter: var(--kn-glow-2); } 50% { filter: var(--kn-glow-1); } }

@media (prefers-reduced-motion: reduce) {
  .kn-primary.is-lit, .kn-ignite { animation: none; }
}
@media (prefers-reduced-transparency: reduce) {
  .kn-primary, .kn-primary.is-lit, .kn-ignite { filter: none; animation: none; }
}

/* Pages du relais de KyberNow (share.kybernow.app). Mise en page à la main, sur le modèle du site
   (site/assets/site.css) : thème sombre seulement, jetons de la charte dans kybernow.css, qui
   précède ce fichier dans la même feuille (assets.rs). `2b674d77` devient la version des fichiers. */

@font-face {
  font-family: "Archivo";
  src: url("/assets/archivo.woff2?v=2b674d77") format("woff2");
  font-weight: 380 760; font-stretch: 100% 125%; font-display: swap;
}
@font-face {
  font-family: "Martian Mono";
  src: url("/assets/martian-mono.woff2?v=2b674d77") format("woff2");
  font-weight: 400 700; font-display: swap;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  background: var(--kn-ink-0); color: var(--kn-frost);
  font: 400 17px/1.6 var(--kn-font-text);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
/* Fond : une lueur de signal en haut, un voile de grain, comme le site */
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(70% 55% at 78% -8%, rgb(109 91 255 / .20), transparent 70%),
    radial-gradient(55% 45% at 0% 100%, rgb(154 140 255 / .07), transparent 70%);
}
body::after {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(120% 80% at 50% 50%, transparent 40%, rgb(5 7 10 / .65) 100%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .05 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
img, svg { display: block; }
a { color: inherit; }
h1, h2, h3, p, dl, dd, ol, ul { margin: 0; padding: 0; }
::selection { background: var(--kn-signal-strong); color: #fff; }
:focus-visible { outline: 2px solid var(--kn-signal); outline-offset: 3px; border-radius: 4px; }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.ic { width: 18px; height: 18px; fill: currentColor; flex: none; }
.ic-lg { width: 28px; height: 28px; fill: var(--kn-frost-2); flex: none; }

.wrap { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 48px); }
main { flex: 1; }

/* ---- Barre du haut ---- */
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 76px; }
.bar-logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.bar-logo img { height: 34px; width: auto; }
.bar-links { display: flex; align-items: center; gap: 6px; }
.lang {
  display: inline-grid; place-items: center; height: 36px; min-width: 40px; padding: 0 10px; border-radius: var(--kn-r-control);
  color: var(--kn-frost-2); text-decoration: none; font: 500 12px/1 var(--kn-font-mono); letter-spacing: .06em;
  transition: color var(--kn-t-hover), background var(--kn-t-hover);
}
.lang:hover { color: var(--kn-frost); background: rgb(227 237 240 / .06); }
.beta {
  display: inline-block; flex: none; font: 500 10px/1 var(--kn-font-mono); letter-spacing: .08em; text-transform: uppercase;
  padding: 5px 7px; border-radius: 5px; color: var(--kn-signal); background: var(--kn-signal-soft);
  box-shadow: inset 0 0 0 1px var(--kn-signal-line); vertical-align: 1px;
}

/* ---- Boutons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 48px; padding: 0 22px; border-radius: var(--kn-r-control);
  font: 600 15px/1 var(--kn-font-text); text-decoration: none; white-space: nowrap; cursor: pointer;
  border: 0; color: var(--kn-frost);
}
.btn-sm { height: 36px; padding: 0 14px; font-size: 14px; gap: 8px; }
.btn-sm .ic { width: 16px; height: 16px; }
.btn.kn-primary { padding-right: 26px; color: var(--kn-on-signal); }
.btn-ghost {
  background: rgb(14 20 26 / .55); box-shadow: inset 0 0 0 1px var(--kn-line-2);
  transition: box-shadow var(--kn-t-hover) ease-out, background var(--kn-t-hover) ease-out;
}
.btn-ghost:hover { box-shadow: inset 0 0 0 1px var(--kn-frost-2); background: rgb(20 27 35 / .7); }
.btn-ghost .ic { color: var(--kn-frost-2); }
.btn .ic-go { transition: transform var(--kn-t-hover) var(--kn-ease-out); }
.btn:hover .ic-go { transform: translateX(3px); }

/* ---- Titres ---- */
.display {
  font-family: var(--kn-font-display); font-stretch: 125%; font-weight: 380; color: var(--kn-frost-2);
  font-size: clamp(32px, 5.1vw, 62px); line-height: 1.02; letter-spacing: -.03em; text-wrap: balance;
}
.display strong { font-weight: 760; color: var(--kn-frost); }
.title {
  font-family: var(--kn-font-display); font-stretch: 125%; font-weight: 380; color: var(--kn-frost-2);
  font-size: clamp(28px, 3.8vw, 46px); line-height: 1.06; letter-spacing: -.03em; max-width: 20ch; text-wrap: balance;
}
.title strong { font-weight: 760; color: var(--kn-frost); }
.lede { font-size: clamp(17px, 1.5vw, 19px); color: var(--kn-frost-2); max-width: 34em; margin-top: 24px; }
h3 { font-family: var(--kn-font-display); font-stretch: 112%; font-weight: 620; font-size: 19px; line-height: 1.25; letter-spacing: -.01em; }
.mono-label { font: 500 11px/1.4 var(--kn-font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--kn-mist); }

/* ---- Accueil : titre, accroche, saisie du code ---- */
.hero {
  display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr); gap: clamp(32px, 5vw, 72px); align-items: center;
  padding-top: clamp(16px, 4vw, 56px); padding-bottom: clamp(48px, 6vw, 88px);
}
.facts { display: flex; flex-wrap: wrap; gap: 14px 40px; margin-top: 40px; }
.facts dt { font: 500 10.5px/1.4 var(--kn-font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--kn-faint); }
.facts dd { margin: 6px 0 0; font: 500 18px/1.2 var(--kn-font-mono); color: var(--kn-frost); letter-spacing: -.02em; }

/* La carte de saisie : un seul coin coupé, comme le bouton principal */
.join {
  padding: 32px; border-radius: var(--kn-r-card) var(--kn-r-card) 0 var(--kn-r-card);
  background: linear-gradient(315deg, transparent var(--kn-chamfer-card), var(--kn-signal-line) var(--kn-chamfer-card), var(--kn-signal-line) calc(var(--kn-chamfer-card) + 1.5px), rgb(20 24 40 / .78) calc(var(--kn-chamfer-card) + 1.5px));
  box-shadow: 0 40px 80px rgb(0 0 0 / .45);
}
.join h2 { text-wrap: balance; font-family: var(--kn-font-display); font-stretch: 125%; font-weight: 640; font-size: clamp(24px, 2.6vw, 30px); line-height: 1.1; letter-spacing: -.025em; }
.join .help { color: var(--kn-frost-2); font-size: 16px; margin-top: 10px; }
.join form { margin-top: 24px; }
.join label { display: block; margin-bottom: 8px; }
.join input {
  width: 100%; height: 72px; padding: 0 12px; border-radius: var(--kn-r-field); border: 0;
  background: var(--kn-ink-0); color: var(--kn-frost); box-shadow: inset 0 0 0 1px var(--kn-line-2);
  font: 560 clamp(28px, 4vw, 36px)/1 var(--kn-font-mono); letter-spacing: .12em; text-align: center;
  transition: box-shadow var(--kn-t-hover) ease-out;
}
.join input::placeholder { color: var(--kn-faint); opacity: 1; }
.join input:hover { box-shadow: inset 0 0 0 1px var(--kn-frost-2); }
.join input:focus-visible { outline: 0; box-shadow: inset 0 0 0 2px var(--kn-signal), 0 0 24px rgb(109 91 255 / .35); }
.join .btn { width: 100%; margin-top: 16px; height: 52px; font-size: 16px; }
.join .hint { color: var(--kn-mist); font-size: 14.5px; margin-top: 20px; }
.notice { color: var(--kn-bad); font-weight: 600; font-size: 16px; margin-top: 16px; }

/* ---- Sections ---- */
.section { padding-top: clamp(48px, 6vw, 88px); padding-bottom: clamp(8px, 1vw, 16px); }
.section + .section { padding-top: clamp(40px, 5vw, 72px); }
.section-head { margin-bottom: clamp(28px, 3.4vw, 44px); }

.how { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .9fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.steps { list-style: none; display: grid; gap: 28px; counter-reset: step; }
.steps li { display: grid; grid-template-columns: 32px 1fr; gap: 16px; align-items: start; counter-increment: step; }
.steps li::before {
  content: counter(step); display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%;
  font: 500 13px/1 var(--kn-font-mono); color: var(--kn-frost); box-shadow: inset 0 0 0 1px var(--kn-line-2);
}
.steps h3 { font-size: 20px; }
.steps p { color: var(--kn-frost-2); font-size: 16px; margin-top: 6px; max-width: 34em; }

/* L'écran de l'hôte, recréé en HTML (les vrais textes des apps, docs/link-ui.md) */
.panel {
  padding: 20px; border-radius: var(--kn-r-card); background: rgb(14 20 26 / .86);
  box-shadow: inset 0 0 0 1px var(--kn-line-2), 0 30px 70px rgb(0 0 0 / .5); font-size: 14.5px; line-height: 1.4;
}
.panel-title { font-family: var(--kn-font-display); font-stretch: 112%; font-weight: 620; font-size: 18px; letter-spacing: -.01em; }
.panel-code { display: flex; align-items: baseline; gap: 14px; margin-top: 14px; padding: 14px 16px; border-radius: var(--kn-r-field); background: var(--kn-ink-0); box-shadow: inset 0 0 0 1px var(--kn-line); }
.panel-code b { font: 560 28px/1 var(--kn-font-mono); letter-spacing: .08em; }
.panel .mono-label { display: block; margin: 18px 0 8px; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-top: 1px solid var(--kn-line); }
.row:first-of-type { border-top: 0; }
.row b { display: block; font-weight: 600; }
.row small { display: block; font-size: 12.5px; color: var(--kn-mist); }
.row .acts { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
.pill { display: inline-block; padding: 6px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 600; color: var(--kn-frost-2); box-shadow: inset 0 0 0 1px var(--kn-line-2); white-space: nowrap; }
.pill-on { color: var(--kn-on-signal); background: var(--kn-signal-strong); box-shadow: none; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: 16px; }
.card { position: relative; padding: 28px; border-radius: var(--kn-r-card); background: rgb(14 20 26 / .72); box-shadow: inset 0 0 0 1px var(--kn-line); }
.card h3 { margin-top: 18px; }
.card p { color: var(--kn-frost-2); font-size: 15.5px; margin-top: 10px; }
.card-soon { box-shadow: inset 0 0 0 1px var(--kn-line-2); background: rgb(14 20 26 / .4); }
.card-soon .head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.tag { font: 500 10.5px/1 var(--kn-font-mono); letter-spacing: .08em; text-transform: uppercase; padding: 6px 8px; border-radius: 5px; color: var(--kn-frost); box-shadow: inset 0 0 0 1px var(--kn-line-2); }
.footnote { font-size: 14px; color: var(--kn-mist); max-width: 60em; margin-top: 24px; }
.cards-more { margin-top: 16px; }
.footnote a { color: var(--kn-frost-2); text-decoration-color: var(--kn-line-2); text-underline-offset: 3px; }
.footnote a:hover { color: var(--kn-frost); text-decoration-color: var(--kn-signal); }

.get { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px 48px; align-items: center; padding: clamp(24px, 3vw, 40px); border-radius: var(--kn-r-card); background: rgb(14 20 26 / .72); box-shadow: inset 0 0 0 1px var(--kn-line); }
.get h2 { font-family: var(--kn-font-display); font-stretch: 125%; font-weight: 640; font-size: clamp(22px, 2.6vw, 30px); line-height: 1.1; letter-spacing: -.025em; }
.get p { color: var(--kn-frost-2); font-size: 16px; margin-top: 10px; max-width: 40em; }
.get .acts { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---- Pages simples : confidentialité, ordinateur injoignable, page introuvable ---- */
.page { padding-top: clamp(24px, 5vw, 64px); padding-bottom: 64px; }
.page h1 { font-family: var(--kn-font-display); font-stretch: 125%; font-weight: 700; font-size: clamp(28px, 4.4vw, 44px); line-height: 1.06; letter-spacing: -.03em; text-wrap: balance; }
.page p { color: var(--kn-frost-2); margin-top: 18px; max-width: 40em; }
.page a { color: var(--kn-frost); text-decoration-color: var(--kn-signal); text-underline-offset: 3px; }

/* ---- Pied de page ---- */
.footer { margin-top: clamp(56px, 7vw, 96px); padding: 28px 0 36px; box-shadow: 0 -1px 0 var(--kn-line); background: rgb(5 7 10 / .85); font-size: 14px; color: var(--kn-mist); }
.footer-in { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; }
.footer a { text-decoration: none; color: var(--kn-frost-2); }
.footer a:hover { color: var(--kn-frost); text-decoration: underline; text-decoration-color: var(--kn-signal); text-underline-offset: 3px; }

@media (max-width: 880px) {
  .hero, .how { grid-template-columns: 1fr; }
  /* Sur un écran étroit, le champ du code vient tout de suite après l'accroche, avant les chiffres */
  .hero { padding-top: 8px; gap: 0; }
  .hero-copy { display: contents; }
  .hero .lede { margin-bottom: 28px; }
  .join { order: 2; }
  .facts { order: 3; margin-top: 32px; }
  .get { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  body { font-size: 16.5px; }
  .bar { height: 64px; }
  .bar-logo img { height: 32px; }
  .bar-links .btn { display: none; }
  .facts { display: grid; gap: 0; }
  .facts > div { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 12px 0; border-top: 1px solid var(--kn-line); }
  .facts dd { margin: 0; font-size: 16px; text-align: right; }
  .join { padding: 24px 20px 28px; }
  .join input { height: 64px; }
  .card { padding: 22px; }
  .row { flex-direction: column; align-items: flex-start; }
  .row .acts { justify-content: flex-start; }
  .get .acts .btn { flex: 1 1 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}
@media (prefers-reduced-transparency: reduce) {
  .join, .card, .panel, .get, .btn-ghost { background: var(--kn-ink-2); }
}

/* Accueil du relais : le logo, la saisie du code, deux liens. */
.solo { min-height: 100vh; min-height: 100dvh; display: flex; align-items: center; justify-content: center; }
.solo-in { width: 100%; max-width: 460px; padding: 40px 16px; display: flex; flex-direction: column; align-items: center; gap: 28px; }
.solo-logo { display: block; width: 260px; max-width: 72%; height: auto; }
.solo .join { width: 100%; }
.solo .join h1 { text-wrap: balance; font-family: var(--kn-font-display); font-stretch: 125%; font-weight: 640; font-size: clamp(24px, 2.6vw, 30px); line-height: 1.1; letter-spacing: -.025em; }
.solo-links { display: flex; gap: 24px; font-size: 15px; }
.solo-links a { color: var(--kn-frost-2); text-decoration: none; }
.solo-links a:hover { color: var(--kn-frost); text-decoration: underline; }