/* ==========================================================================
   KITSUN SYSTEM - Design system partagé (site, espace client, admin)
   Règle de formes : boutons = pilule, cartes = 20px, champs = 12px.
   Thème : sombre uniquement (identité de marque violet sur noir).
   ========================================================================== */

:root {
  --bg: #0b0810;
  --bg-2: #0f0a16;
  --surface: #141019;
  --surface-2: #1b1524;
  --surface-3: #241c31;
  --line: rgba(205, 175, 255, 0.09);
  --line-2: rgba(205, 175, 255, 0.17);
  --line-3: rgba(205, 175, 255, 0.28);

  --text: #f4effb;
  --text-2: #bdb2d0;
  --text-3: #9186a6;

  --violet-100: #efe6ff;
  --violet-200: #ddc8ff;
  --violet-300: #c6a3ff;
  --violet-400: #a974ff;
  --violet: #8b3dff;
  --violet-600: #7428e6;
  --violet-700: #5b17bf;
  --violet-800: #3d1182;
  --violet-900: #22103f;

  --success: #5ee0a0;
  --warning: #f5c35b;
  --danger: #ff7a8a;

  --radius-card: 20px;
  --radius-input: 12px;
  --radius-pill: 999px;

  --font-display: 'Clash Display', 'Satoshi', system-ui, sans-serif;
  --font-body: 'Satoshi', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --shadow-violet: 0 30px 80px -32px rgba(110, 40, 220, 0.55);
  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 24px 60px -30px rgba(10, 4, 20, 0.9);

  /* Verre « Cristal violet » : partagé par le site et l'espace client */
  --glass-bg: linear-gradient(140deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.035));
  --glass-bg-solid: rgba(24, 17, 36, 0.94);
  --glass-bd: rgba(255, 255, 255, 0.17);
  --glass-bd-strong: rgba(214, 190, 255, 0.5);
  --glass-hi: inset 0 1px 0 rgba(255, 255, 255, 0.26), inset 0 -1px 0 rgba(255, 255, 255, 0.04);
  --glass-shadow: 0 30px 70px -34px rgba(40, 6, 100, 0.95);
  --glass-blur: blur(22px) saturate(180%);
  --magenta: #d14bff;
  --azure: #4f6bff;

  --nav-h: 72px;
  --container: 1240px;
  --gutter: clamp(16px, 4vw, 40px);

  /* Échelle des couches */
  --z-nav: 50;
  --z-grain: 60;
  --z-overlay: 80;
  --z-modal: 90;
  --z-toast: 100;
  --z-loader: 120;

  color-scheme: dark;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }
body {
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, video, canvas { display: block; max-width: 100%; }
img { height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.12; letter-spacing: -0.02em; text-wrap: balance; }
p { text-wrap: pretty; }
::selection { background: var(--violet); color: #fff; }
:focus-visible { outline: 2px solid var(--violet-300); outline-offset: 3px; border-radius: 6px; }
[hidden] { display: none !important; }

/* Fond ambiant : taches de couleur qui dérivent derrière le verre, sur toutes les pages */
body::before {
  content: '';
  position: fixed;
  inset: -25%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(28% 30% at 78% 22%, rgba(139, 61, 255, 0.5), transparent 70%),
    radial-gradient(24% 26% at 16% 64%, rgba(209, 75, 255, 0.3), transparent 70%),
    radial-gradient(22% 24% at 70% 82%, rgba(79, 107, 255, 0.26), transparent 70%);
  animation: ambient 28s ease-in-out infinite alternate;
}
body.no-ambient::before { display: none; }
@keyframes ambient {
  50% { transform: translate(4%, -3%) rotate(6deg) scale(1.06); }
  100% { transform: translate(-3%, 3%) rotate(-4deg) scale(1.02); }
}

/* Verre : .glass (reflet qui glisse en continu) et .card (reflet au survol seulement) */
.glass, .card {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-bd);
  box-shadow: var(--glass-hi), var(--glass-shadow);
}
.glass { position: relative; overflow: hidden; isolation: isolate; }
.glass::after, .card::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 38%, rgba(255, 255, 255, 0.16) 49%, transparent 60%);
  transform: translateX(-110%);
}
.glass::after { animation: sheen 7s var(--ease-in-out) infinite; }
@keyframes sheen { 0% { transform: translateX(-110%); } 45%, 100% { transform: translateX(110%); } }
/* .card ne coupe pas son contenu : le reflet glisse dans le fond au lieu de se déplacer */
.card::after { transform: none; background-size: 260% 100%; background-position: 130% 0; background-repeat: no-repeat; opacity: 0; transition: opacity 0.3s ease; }
.card:hover::after { opacity: 1; animation: sheen-bg 1.6s var(--ease-in-out) both; }
@keyframes sheen-bg { to { background-position: -130% 0; } }
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass, .card { background: var(--glass-bg-solid); }
}

/* Grain discret sur toute la page (fixe, non interactif) */
.grain::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: var(--z-grain);
  pointer-events: none;
  opacity: 0.05;
  background-image: 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='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.text-violet { color: var(--violet-300); }
.muted { color: var(--text-2); }
.dim { color: var(--text-3); }

/* ---------- Boutons ---------- */
.btn {
  --btn-bg: var(--surface-2);
  --btn-fg: var(--text);
  --btn-bd: var(--line-2);
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--btn-bd);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.005em;
  white-space: nowrap;
  transition: transform 0.35s var(--ease), background 0.25s ease, border-color 0.25s ease, box-shadow 0.35s var(--ease), color 0.25s ease;
  isolation: isolate;
}
.btn i { font-size: 18px; }
.btn:hover { border-color: var(--line-3); }
.btn:active { transform: translateY(1px) scale(0.985); }
.btn[disabled], .btn.is-loading { opacity: 0.6; pointer-events: none; }
.btn-primary {
  --btn-bg: linear-gradient(135deg, var(--violet-400), var(--violet-600));
  --btn-fg: #fff;
  --btn-bd: transparent;
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.4) inset, 0 14px 38px -12px rgba(139, 61, 255, 0.95);
}
.btn-primary::before { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.45) 50%, transparent 70%); transform: translateX(-120%); animation: btn-shine 3.2s var(--ease-in-out) infinite; }
.btn-primary:hover { --btn-bg: linear-gradient(135deg, #b98aff, var(--violet)); transform: translateY(-2px); box-shadow: 0 1px 0 rgba(255, 255, 255, 0.45) inset, 0 20px 50px -12px rgba(139, 61, 255, 1); }
@keyframes btn-shine { 55%, 100% { transform: translateX(120%); } }
.btn-ghost { --btn-bg: rgba(255, 255, 255, 0.06); --btn-bd: var(--glass-bd); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); box-shadow: var(--glass-hi); }
.btn-ghost:hover { --btn-bg: rgba(255, 255, 255, 0.11); }
.btn-light { --btn-bg: var(--violet-100); --btn-fg: #1a0b33; --btn-bd: transparent; }
.btn-light:hover { --btn-bg: #fff; }
.btn-danger { --btn-bg: rgba(255, 122, 138, 0.1); --btn-fg: var(--danger); --btn-bd: rgba(255, 122, 138, 0.3); }
.btn-danger:hover { --btn-bg: rgba(255, 122, 138, 0.18); }
.btn-sm { height: 38px; padding: 0 16px; font-size: 14px; }
.btn-lg { height: 56px; padding: 0 30px; font-size: 16px; }
.btn-icon { width: 40px; height: 40px; padding: 0; }
.btn-block { width: 100%; }
.btn .spinner { width: 16px; height: 16px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: spin 0.7s linear infinite; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Formulaires ---------- */
.field { display: grid; gap: 8px; }
.field > label, .label { font-size: 14px; font-weight: 600; color: var(--text); }
.field .hint { font-size: 13px; color: var(--text-3); }
.field .error-text { font-size: 13px; color: var(--danger); }
.input, .textarea, .select {
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  border-radius: var(--radius-input);
  border: 1px solid var(--line-2);
  background: rgba(10, 6, 16, 0.45);
  color: var(--text);
  font-size: 15px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.textarea { min-height: 120px; resize: vertical; line-height: 1.55; }
.select { appearance: none; padding-right: 42px; background-image: linear-gradient(45deg, transparent 50%, var(--text-2) 50%), linear-gradient(135deg, var(--text-2) 50%, transparent 50%); background-position: calc(100% - 22px) 21px, calc(100% - 16px) 21px; background-size: 6px 6px; background-repeat: no-repeat; }
.select option { background: var(--surface-2); color: var(--text); }
.input::placeholder, .textarea::placeholder { color: #7d7392; }
.input:hover, .textarea:hover, .select:hover { border-color: var(--line-3); }
.input:focus, .textarea:focus, .select:focus { outline: none; border-color: var(--violet-400); box-shadow: 0 0 0 4px rgba(139, 61, 255, 0.18); background: rgba(10, 6, 16, 0.8); }
.input[aria-invalid='true'] { border-color: var(--danger); }
.checkbox { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; color: var(--text-2); cursor: pointer; }
.checkbox input { appearance: none; flex: none; width: 20px; height: 20px; margin-top: 2px; border-radius: 6px; border: 1px solid var(--line-3); background: rgba(10, 6, 16, 0.6); display: grid; place-content: center; cursor: pointer; transition: background 0.2s ease, border-color 0.2s ease; }
.checkbox input::after { content: ''; width: 10px; height: 6px; border-left: 2px solid #fff; border-bottom: 2px solid #fff; transform: rotate(-45deg) translate(1px, -1px) scale(0); transition: transform 0.2s var(--ease); }
.checkbox input:checked { background: var(--violet); border-color: var(--violet); }
.checkbox input:checked::after { transform: rotate(-45deg) translate(1px, -1px) scale(1); }
.checkbox a { color: var(--violet-300); text-decoration: underline; text-underline-offset: 3px; }
.form-grid { display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }
.form-alert { padding: 12px 16px; border-radius: var(--radius-input); font-size: 14px; border: 1px solid; }
.form-alert.is-error { color: #ffc2ca; background: rgba(255, 122, 138, 0.08); border-color: rgba(255, 122, 138, 0.3); }
.form-alert.is-success { color: #c4f5dc; background: rgba(94, 224, 160, 0.08); border-color: rgba(94, 224, 160, 0.3); }
.form-alert.is-info { color: var(--violet-200); background: rgba(139, 61, 255, 0.1); border-color: rgba(139, 61, 255, 0.3); }

/* ---------- Badges / pills ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.01em;
  background: rgba(205, 175, 255, 0.08);
  border: 1px solid var(--line-2);
  color: var(--text-2);
  white-space: nowrap;
}
.badge i { font-size: 14px; }
.badge-violet { background: rgba(139, 61, 255, 0.16); border-color: rgba(139, 61, 255, 0.4); color: var(--violet-200); }
.badge-success { background: rgba(94, 224, 160, 0.1); border-color: rgba(94, 224, 160, 0.3); color: var(--success); }
.badge-warning { background: rgba(245, 195, 91, 0.1); border-color: rgba(245, 195, 91, 0.3); color: var(--warning); }
.badge-danger { background: rgba(255, 122, 138, 0.1); border-color: rgba(255, 122, 138, 0.3); color: var(--danger); }

/* ---------- Barre de progression (composant réel de l'espace client) ---------- */
.progress { position: relative; height: 10px; border-radius: var(--radius-pill); background: rgba(205, 175, 255, 0.08); overflow: hidden; }
.progress-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: calc(var(--value, 0) * 1%);
  border-radius: inherit;
  background: linear-gradient(90deg, var(--violet-700), var(--violet) 55%, var(--violet-300));
  transition: width 1.1s var(--ease);
}
.progress-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: translateX(-100%);
  animation: progress-shine 2.6s var(--ease-in-out) infinite;
}
.progress.is-done .progress-fill { background: linear-gradient(90deg, #2f9e6c, var(--success)); }
@keyframes progress-shine { 60%, 100% { transform: translateX(100%); } }

/* ---------- Cartes ---------- */
.card { position: relative; border-radius: var(--radius-card); }

/* ---------- Marque (logo + texte) ---------- */
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand img { width: 42px; height: auto; filter: drop-shadow(0 4px 14px rgba(139, 61, 255, 0.45)); }
.brand-text { display: grid; line-height: 1; }
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: 17px; letter-spacing: 0.04em; }
.brand-sub { font-size: 9.5px; font-weight: 700; letter-spacing: 0.42em; color: var(--violet-300); margin-top: 5px; }

/* ---------- Toasts ---------- */
.toasts { position: fixed; z-index: var(--z-toast); right: 20px; bottom: 20px; display: grid; gap: 10px; width: min(380px, calc(100vw - 40px)); }
.toast {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(27, 21, 36, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--line-2);
  box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.8);
  font-size: 14px;
  animation: toast-in 0.45s var(--ease) both;
}
.toast i { font-size: 20px; flex: none; margin-top: 1px; }
.toast.is-success i { color: var(--success); }
.toast.is-error i { color: var(--danger); }
.toast.is-info i { color: var(--violet-300); }
.toast.is-leaving { animation: toast-out 0.3s ease forwards; }
@keyframes toast-in { from { opacity: 0; transform: translateY(14px) scale(0.98); } }
@keyframes toast-out { to { opacity: 0; transform: translateY(8px); } }

/* ---------- Modale ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(6, 3, 10, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: fade-in 0.25s ease both;
  overflow-y: auto;
}
.modal {
  width: min(620px, 100%);
  max-height: calc(100dvh - 40px);
  overflow-y: auto;
  border-radius: 24px;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.03)), rgba(20, 14, 30, 0.82);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-bd);
  box-shadow: var(--glass-hi), var(--shadow-violet);
  animation: modal-in 0.45s var(--ease) both;
}
.modal-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 26px 28px 0; }
.modal-head h2 { font-size: 20px; }
.modal-head p { color: var(--text-2); font-size: 14px; margin-top: 6px; }
.modal-body { padding: 22px 28px 28px; }
.modal-close { flex: none; width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; color: var(--text-2); border: 1px solid var(--line); transition: background 0.2s ease; }
.modal-close:hover { background: var(--surface-2); color: var(--text); }
@keyframes fade-in { from { opacity: 0; } }
@keyframes modal-in { from { opacity: 0; transform: translateY(18px) scale(0.98); } }

/* ---------- Pages légales ---------- */
.legal-page { padding: calc(var(--nav-h) + 56px) 0 96px; }
.legal { max-width: 820px; }
.legal h1 { font-size: clamp(30px, 4vw, 44px); margin-bottom: 14px; }
.legal .legal-meta { color: var(--text-3); font-size: 14px; margin-bottom: 40px; }
.legal h2 { font-size: 19px; margin: 44px 0 14px; color: var(--violet-200); }
.legal h3 { font-size: 15px; font-family: var(--font-body); font-weight: 800; letter-spacing: 0; margin: 22px 0 8px; }
.legal p, .legal li { color: var(--text-2); font-size: 15.5px; line-height: 1.75; }
.legal p + p { margin-top: 12px; }
.legal ul { padding-left: 20px; margin: 10px 0; display: grid; gap: 6px; }
.legal strong { color: var(--text); }
.legal a { color: var(--violet-300); text-decoration: underline; text-underline-offset: 3px; }
.legal .toc { margin: 0 0 40px; padding: 22px 26px; border-radius: var(--radius-card); background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-bd); columns: 2; column-gap: 32px; }
.legal .toc a { display: block; font-size: 14px; padding: 4px 0; color: var(--text-2); text-decoration: none; break-inside: avoid; }
.legal .toc a:hover { color: var(--violet-200); }
.legal .notice { margin: 28px 0; padding: 16px 20px; border-radius: 14px; border: 1px dashed rgba(245, 195, 91, 0.45); background: rgba(245, 195, 91, 0.06); color: #f3dca7; font-size: 14px; }
.legal [data-ks] { color: var(--text); font-weight: 600; }
@media (max-width: 640px) { .legal .toc { columns: 1; } }
.legal .legal-actions { margin: -24px 0 36px; }
.legal .legal-print-head { display: none; }
.legal .legal-form { margin-top: 14px; padding: 20px 24px; border-radius: 14px; border: 1px dashed var(--line-3); }
.legal .legal-form p + p { margin-top: 8px; }
.footer-legal { display: flex; flex-wrap: wrap; gap: 6px 18px; }

/* Impression et PDF des pages légales (tools/build-legal-pdf.sh) */
@media print {
  @page { size: A4; margin: 16mm 16mm 18mm; }
  :root { color-scheme: light !important; background: #fff !important; }
  html, body { background: #fff !important; }
  body::before, body::after, .nav, .footer, .legal-actions, .toasts { display: none !important; }
  .legal-page { padding: 0 !important; }
  .legal { max-width: none; padding: 0 !important; }
  .legal * { color: #1a1325 !important; background: none !important; box-shadow: none !important; -webkit-backdrop-filter: none !important; backdrop-filter: none !important; }
  .legal .legal-print-head { display: block; font-size: 10px; letter-spacing: 0.04em; text-transform: uppercase; color: #5b17bf !important; border-bottom: 1px solid #ddd; padding-bottom: 8px; margin-bottom: 18px; }
  .legal h1 { font-size: 26px; }
  .legal h2 { font-size: 15px; margin: 22px 0 8px; color: #3d1182 !important; break-after: avoid; }
  .legal h3 { break-after: avoid; }
  .legal p, .legal li { font-size: 11px; line-height: 1.55; }
  .legal .toc { border: 1px solid #ddd; padding: 12px 16px; margin-bottom: 20px; }
  .legal .toc a { font-size: 10.5px; padding: 1px 0; }
  .legal .legal-form { border-color: #999; break-inside: avoid; }
  .legal a { text-decoration: none; }
}

/* ---------- Mouvement réduit ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}