/* ============================================================
   Imforia Auth Surface Styles — v1.0  (Stage 3, Batch 1)
   Requires: tokens.css, motion.css
   Scope: body.auth-page only — no bleed into base.html pages.
   ============================================================ */

/* ── Backdrop ────────────────────────────────────────────────*/
body.auth-page {
    background-color: var(--color-surface-raised);
}

body.auth-page::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(
            ellipse 55% 55% at 85% 15%,
            rgba(var(--color-brand-primary-rgb), 0.13) 0%,
            transparent 65%
        ),
        radial-gradient(
            ellipse 50% 60% at 15% 85%,
            rgba(var(--color-brand-accent-rgb), 0.10) 0%,
            transparent 65%
        );
    z-index: 0;
    pointer-events: none;
}

/* The outer flex container needs z-index context above ::before */
body.auth-page > div {
    position: relative;
    z-index: var(--z-raised);
}

/* ── Glass card ──────────────────────────────────────────────*/
.auth-card {
    position: relative;
    z-index: var(--z-raised);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    /* glass-standard applied via utility class */
}

@media (max-width: 575px) {
    .auth-card { padding: var(--space-6); }
}

/* ── Photo panel — sits above body::before ───────────────── */
.auth-page .col-xxl-5 {
    position: relative;
    z-index: var(--z-raised);
}

/* ── Inputs ──────────────────────────────────────────────────*/
.auth-form .form-control {
    transition:
        border-color var(--duration-fast) var(--ease-out),
        box-shadow   var(--duration-fast) var(--ease-out);
}

.auth-form .form-control:focus {
    border-color:  var(--color-brand-accent);
    box-shadow:    0 0 0 3px rgba(var(--color-brand-accent-rgb), 0.15);
    outline:       2px solid rgba(var(--color-brand-accent-rgb), 0.40);
    outline-offset: 2px;
}

.auth-form .form-control.is-invalid:focus {
    border-color:  var(--color-danger);
    box-shadow:    0 0 0 3px rgba(var(--color-danger-rgb), 0.15);
    outline-color: rgba(var(--color-danger-rgb), 0.40);
}

/* ── Error alert ─────────────────────────────────────────────*/
.auth-alert {
    background:    var(--color-danger-light);
    border:        none;
    border-left:   3px solid var(--color-danger);
    color:         var(--color-danger-dark);
    border-radius: var(--radius-md);
    padding:       var(--space-3) var(--space-4);
    font-size:     var(--text-sm);
    margin-bottom: var(--space-4);
}

/* ── Invalid link alert (password_reset_confirm) ─────────── */
.auth-invalid-card {
    background:    var(--color-danger-light);
    border:        none;
    border-left:   3px solid var(--color-danger);
    color:         var(--color-danger-dark);
    border-radius: var(--radius-md);
    padding:       var(--space-4) var(--space-5);
    margin-bottom: var(--space-4);
}

.auth-invalid-card h4 {
    font-size:   var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
    color:       var(--color-danger-dark);
}

/* ── Submit button ───────────────────────────────────────────*/
.auth-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    transition:
        opacity     var(--duration-fast) var(--ease-out),
        transform   var(--duration-fast) var(--ease-out),
        box-shadow  var(--duration-fast) var(--ease-out);
}

.auth-btn:disabled {
    opacity: 0.72;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.auth-btn .btn-spinner {
    width:  1em;
    height: 1em;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: var(--radius-full);
    display: inline-block;
    flex-shrink: 0;
    animation: imf-spin 0.8s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
    .auth-btn .btn-spinner {
        animation: none;
        border-top-color: currentColor;
        opacity: 0.5;
    }
}

/* ── Password label row (label + reset link on same line) ── */
.auth-label-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: var(--space-1);
}

.auth-label-row .form-label { margin-bottom: 0; }