/* ==========================================================================
   Écrans d'authentification
   ========================================================================== */
.auth { min-height: 100vh; display: flex; flex-direction: column; position: relative; overflow-x: hidden; }
.auth__grid {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(60% 55% at 50% 42%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(60% 55% at 50% 42%, #000 0%, transparent 75%);
}
.auth__grid::after { content: ""; position: absolute; left: 50%; top: 38%; width: 720px; height: 420px; transform: translate(-50%, -50%); background: radial-gradient(closest-side, color-mix(in srgb, var(--accent) 16%, transparent), transparent); }
.auth__top, .auth__foot, .auth__main { position: relative; z-index: 1; }
.auth__top { display: flex; align-items: center; justify-content: space-between; padding: 20px 28px; }
.auth__main { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 24px 16px 40px; gap: 22px; }
.auth__foot { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 18px 28px; font-size: 12px; color: var(--text-3); }
.brand-mark { width: 32px; height: 32px; border-radius: 9px; background: var(--accent); color: var(--on-accent); display: grid; place-items: center; box-shadow: inset 0 0 0 1px rgba(255,255,255,.12), 0 6px 16px -6px var(--accent); }
.brand-mark svg { width: 20px; height: 20px; }
.brand-name { font-weight: 680; letter-spacing: -.02em; font-size: 15px; }
.brand-name span { color: var(--text-3); font-weight: 560; margin-left: 3px; font-size: 12px; padding: 1px 6px; border-radius: 6px; background: var(--surface-3); vertical-align: 1px; }

.auth-card {
  width: min(420px, 100%); padding: 32px; border-radius: 20px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border: 1px solid var(--border-strong); box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px); animation: rm-pop var(--dur-slow) var(--ease-out);
}
[data-theme="dark"] .auth-card { background: color-mix(in srgb, var(--surface) 88%, transparent); }
.auth-card__head { margin-bottom: 24px; }
.auth-card__head .h2 { font-size: 26px; }
.auth-card__head p { margin-top: 6px; font-size: 13.5px; }
.auth-card__icon { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent-text); margin-bottom: 18px; }
.auth-card__icon .lucide { width: 22px; height: 22px; }
.auth-card__icon.is-warning { background: var(--warning-soft); color: var(--warning); }
.auth-card__icon.is-danger { background: var(--danger-soft); color: var(--danger); }
.auth-card__foot { display: flex; align-items: center; justify-content: center; gap: 6px; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-3); }
.auth-card__foot .lucide { width: 14px; height: 14px; color: var(--success); }
.input-lg { height: 42px; font-size: 14px; }
.input-group .input-action { position: absolute; right: 5px; }
.auth-back { display: inline-flex; align-items: center; gap: 6px; margin-top: 20px; font-size: 13px; color: var(--text-2); }
.auth-back .lucide { width: 14px; height: 14px; }
.auth-sent { display: flex; gap: 12px; padding: 14px; border-radius: var(--r); background: var(--success-soft); border: 1px solid color-mix(in srgb, var(--success) 25%, transparent); animation: rm-rise var(--dur) var(--ease-out); }
.auth-sent > .lucide, .auth-sent > span > .lucide { color: var(--success); width: 20px; height: 20px; }
.auth-user { display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: var(--r); background: var(--surface-sunken); border: 1px solid var(--border); }
.avatar { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-weight: 650; background: hsl(var(--h) 45% 48%); }
.otp { display: flex; gap: 8px; justify-content: center; align-items: center; }
.otp input { width: 46px; height: 54px; text-align: center; font-size: 22px; font-weight: 650; font-family: var(--font-mono); border-radius: 10px; border: 1px solid var(--border-strong); background: var(--surface-sunken); color: var(--text); }
.otp input:focus { outline: none; border-color: var(--border-focus); box-shadow: var(--ring); }
.otp__sep { width: 10px; height: 2px; background: var(--border-strong); border-radius: 2px; }
.pw-rules { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.pw-rules span { font-size: 11.5px; padding: 2px 8px; border-radius: 999px; background: var(--surface-3); color: var(--text-3); transition: all var(--dur); }
.pw-rules span.is-ok { background: var(--success-soft); color: var(--success); }
.auth-demo { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; justify-content: center; padding: 6px 8px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); font-size: 12px; }
.auth-demo .eyebrow { padding: 0 8px; }
.auth-demo a { padding: 4px 10px; border-radius: 999px; color: var(--text-2); }
.auth-demo a:hover { text-decoration: none; background: var(--surface-hover); }
.auth-demo a.is-active { background: var(--accent-soft); color: var(--accent-text); }
@media (max-width: 520px) { .auth-card { padding: 24px 20px; } .otp input { width: 40px; height: 48px; } }
.auth .input-group > .input { padding-left: 13px; padding-right: 44px; }