/* ════════════════════════════════════════════════════════════════════════════
   SpotliteAuth — styles du composant d'auth partagé. Namespacé `sa-` pour ne
   jamais entrer en conflit avec la page hôte. Thème clair/sombre automatique
   (prefers-color-scheme) + surcharge via [data-theme] sur :root.
   ════════════════════════════════════════════════════════════════════════════ */
:root {
  --sa-bg: #ffffff;
  --sa-fg: #0b0b0f;
  --sa-muted: #6b7280;
  --sa-line: #e6e7eb;
  --sa-field: #f6f7f9;
  --sa-primary: #111114;
  --sa-primary-fg: #ffffff;
  --sa-accent: #6d5efb;
  --sa-error: #d92d20;
  --sa-radius: 16px;
  --sa-shadow: 0 24px 60px rgba(0, 0, 0, .28);
}
@media (prefers-color-scheme: dark) {
  :root {
    --sa-bg: #15161a;
    --sa-fg: #f3f4f6;
    --sa-muted: #9aa0aa;
    --sa-line: #2a2c33;
    --sa-field: #1e2027;
    --sa-primary: #ffffff;
    --sa-primary-fg: #101014;
    --sa-shadow: 0 24px 60px rgba(0, 0, 0, .6);
  }
}
:root[data-theme="dark"] {
  --sa-bg: #15161a; --sa-fg: #f3f4f6; --sa-muted: #9aa0aa; --sa-line: #2a2c33;
  --sa-field: #1e2027; --sa-primary: #ffffff; --sa-primary-fg: #101014;
  --sa-shadow: 0 24px 60px rgba(0, 0, 0, .6);
}
:root[data-theme="light"] {
  --sa-bg: #ffffff; --sa-fg: #0b0b0f; --sa-muted: #6b7280; --sa-line: #e6e7eb;
  --sa-field: #f6f7f9; --sa-primary: #111114; --sa-primary-fg: #ffffff;
  --sa-shadow: 0 24px 60px rgba(0, 0, 0, .28);
}

body.sa-locked { overflow: hidden; }

.sa-overlay {
  position: fixed; inset: 0; z-index: 2147483000;
  display: flex; align-items: center; justify-content: center;
  padding: 20px; background: rgba(10, 11, 15, .55);
  backdrop-filter: saturate(140%) blur(3px);
  -webkit-backdrop-filter: saturate(140%) blur(3px);
  animation: sa-fade .16s ease;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, system-ui, sans-serif;
}
@keyframes sa-fade { from { opacity: 0; } to { opacity: 1; } }

.sa-card {
  position: relative; width: 100%; max-width: 420px;
  background: var(--sa-bg); color: var(--sa-fg);
  border: 1px solid var(--sa-line); border-radius: var(--sa-radius);
  box-shadow: var(--sa-shadow);
  padding: 26px 24px 20px; box-sizing: border-box;
  max-height: calc(100vh - 40px); overflow-y: auto;
  animation: sa-pop .18s cubic-bezier(.2, .8, .2, 1);
}
@keyframes sa-pop { from { transform: translateY(8px) scale(.98); opacity: 0; } to { transform: none; opacity: 1; } }

/* Bottom-sheet sur mobile. */
.sa-overlay.sa-sheet { align-items: flex-end; padding: 0; }
.sa-overlay.sa-sheet .sa-card {
  max-width: 100%; border-radius: 20px 20px 0 0;
  max-height: 92vh; padding-bottom: max(20px, env(safe-area-inset-bottom));
  animation: sa-slide .22s cubic-bezier(.2, .8, .2, 1);
}
@keyframes sa-slide { from { transform: translateY(100%); } to { transform: none; } }

.sa-close {
  position: absolute; top: 12px; right: 12px; width: 34px; height: 34px;
  border: 0; border-radius: 10px; background: transparent; color: var(--sa-muted);
  font-size: 24px; line-height: 1; cursor: pointer;
}
.sa-close:hover { background: var(--sa-field); color: var(--sa-fg); }

/* Bandeau écosystème. */
.sa-eco { text-align: center; margin: 2px 0 18px; }
.sa-eco-msg { font-size: 14.5px; font-weight: 650; letter-spacing: -.01em; }
.sa-badges { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-top: 10px; }
.sa-badge {
  font-size: 11px; font-weight: 600; letter-spacing: .02em;
  padding: 3px 9px; border-radius: 999px;
  background: var(--sa-field); color: var(--sa-muted);
  border: 1px solid var(--sa-line);
}

/* Onglets connexion / création. */
.sa-tabs { display: flex; gap: 4px; background: var(--sa-field); border-radius: 12px; padding: 4px; margin-bottom: 16px; }
.sa-tab {
  flex: 1; padding: 9px 8px; border: 0; border-radius: 9px; cursor: pointer;
  font-size: 13.5px; font-weight: 600; color: var(--sa-muted); background: transparent;
}
.sa-tab.active { background: var(--sa-bg); color: var(--sa-fg); box-shadow: 0 1px 3px rgba(0, 0, 0, .12); }

.sa-form { display: flex; flex-direction: column; }
.sa-label { font-size: 12px; font-weight: 600; color: var(--sa-muted); margin: 8px 0 5px; }
.sa-input {
  width: 100%; box-sizing: border-box; padding: 12px 13px;
  border: 1px solid var(--sa-line); border-radius: 11px;
  background: var(--sa-field); color: var(--sa-fg);
  font-size: 15px; outline: none; transition: border-color .12s, box-shadow .12s;
}
.sa-input:focus { border-color: var(--sa-accent); box-shadow: 0 0 0 3px rgba(109, 94, 251, .18); }

.sa-btn {
  display: flex; align-items: center; justify-content: center; gap: 9px;
  width: 100%; box-sizing: border-box; padding: 12px 14px; margin-top: 14px;
  border: 1px solid transparent; border-radius: 11px; cursor: pointer;
  font-size: 15px; font-weight: 650; line-height: 1;
}
.sa-btn:disabled { opacity: .6; cursor: default; }
.sa-btn-primary { background: var(--sa-primary); color: var(--sa-primary-fg); }
.sa-btn-primary:hover:not(:disabled) { opacity: .9; }
.sa-btn-google { background: var(--sa-bg); color: var(--sa-fg); border-color: var(--sa-line); }
.sa-btn-google:hover:not(:disabled) { background: var(--sa-field); }
.sa-btn-ghost { background: transparent; color: var(--sa-fg); border-color: var(--sa-line); }
.sa-btn-ghost:hover:not(:disabled) { background: var(--sa-field); }
.sa-g { display: inline-flex; }

.sa-or { display: flex; align-items: center; gap: 12px; margin: 16px 0; color: var(--sa-muted); font-size: 12px; }
.sa-or::before, .sa-or::after { content: ""; flex: 1; height: 1px; background: var(--sa-line); }

.sa-error { color: var(--sa-error); font-size: 13px; margin: 10px 0 0; }
.sa-fine { color: var(--sa-muted); font-size: 11.5px; line-height: 1.5; text-align: center; margin: 16px 0 2px; }
.sa-fine a { color: var(--sa-muted); text-decoration: underline; }

/* Panneau QR. */
.sa-qr-toggle { margin-top: 10px; }
.sa-qr-panel { margin-top: 14px; text-align: center; }
.sa-qr-lead { font-size: 13px; color: var(--sa-muted); margin: 0 0 12px; line-height: 1.5; }
.sa-qr-code {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 200px; min-height: 200px; padding: 10px;
  background: #fff; border-radius: 12px; border: 1px solid var(--sa-line);
}
.sa-qr-code img { display: block; image-rendering: pixelated; }
.sa-qr-num { display: flex; flex-direction: column; align-items: center; gap: 2px; margin: 12px 0 4px; }
.sa-qr-num-label { font-size: 11px; color: var(--sa-muted); }
.sa-qr-match { font-size: 30px; font-weight: 800; letter-spacing: 6px; }
.sa-qr-status { font-size: 12.5px; color: var(--sa-muted); min-height: 18px; margin: 4px 0 0; }
.sa-qr-actions { margin-top: 10px; }
.sa-qr-actions .sa-btn { margin-top: 0; }

/* Spinner. */
.sa-spin {
  width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid currentColor; border-right-color: transparent;
  display: inline-block; animation: sa-spin .7s linear infinite;
}
/* `display: inline-block` écraserait l'attribut hidden : on le rétablit. */
.sa-spin[hidden], .sa-error[hidden], .sa-qr-panel[hidden] { display: none !important; }
@keyframes sa-spin { to { transform: rotate(360deg); } }