.auth-shell {
    min-height: calc(100vh - 5rem);
    display: grid;
    place-items: center;
    padding: var(--space-5) 0;
}

.auth-card {
    width: min(560px, 100%);
    padding: var(--space-6);
    border: 1px solid var(--c-border);
    border-radius: 16px;
    background: var(--c-surface);
    box-shadow: var(--shadow-md);
    display: grid;
    gap: var(--space-4);
}

.auth-card--wide {
    width: min(780px, 100%);
}

.auth-card__kicker {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--c-text-muted);
    font-weight: 700;
}

.auth-card h1 {
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    line-height: 1.1;
}

.auth-card__lead,
.auth-card__notice,
.auth-list li,
.auth-targets li a span {
    color: var(--c-text-muted);
}

.auth-form {
    display: grid;
    gap: var(--space-3);
}

.auth-form__field {
    display: grid;
    gap: var(--space-2);
}

.auth-form__field span {
    font-size: 0.9rem;
    font-weight: 600;
}

.auth-form__submit {
    margin-top: var(--space-2);
}

.auth-card__notice--warning {
    display: flex;
    gap: var(--space-3);
    align-items: flex-start;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    background: #fff8e1;
    border: 1px solid #f0c040;
    color: #6b4f04;
    font-size: 0.875rem;
    line-height: 1.5;
}
.auth-card__notice--warning svg {
    flex-shrink: 0;
    margin-top: 2px;
    color: #d4a017;
}
.auth-card__notice--warning strong {
    display: block;
    font-weight: 700;
    margin-bottom: 4px;
    color: #5a3e02;
}
.auth-card__notice--warning p {
    margin: 0 0 var(--space-2);
}
.auth-card__notice--warning a {
    font-weight: 600;
    color: #8a5c00;
    text-decoration: underline;
}
.auth-card__notice--warning a:hover {
    color: #5a3e02;
}

.auth-card__back,
.auth-link {
    color: var(--c-primary);
    font-weight: 600;
}

.auth-card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.auth-targets,
.auth-list {
    display: grid;
    gap: var(--space-3);
}

.auth-targets li a {
    display: grid;
    gap: var(--space-1);
    padding: var(--space-4);
    border-radius: 12px;
    border: 1px solid var(--c-border);
    background: #fafbfa;
}

.auth-targets li a strong {
    color: var(--c-text);
}

.auth-list {
    list-style: disc;
    padding-left: var(--space-5);
}

/* ── Registration extensions ─────────────────────────────────────────────── */

.auth-card--center {
    text-align: center;
    justify-items: center;
}

.auth-card__meta {
    font-size: 0.9rem;
    color: var(--c-text-muted);
}

/* Two-column name row */
.auth-form__row {
    display: grid;
    gap: var(--space-3);
}

@media (min-width: 480px) {
    .auth-form__row {
        grid-template-columns: 1fr 1fr;
    }
}

/* Password toggle wrapper */
.auth-form__pwd-wrap {
    position: relative;
    display: grid;
}

.auth-form__pwd-wrap input {
    padding-right: 2.8rem;
}

.auth-form__pwd-toggle {
    position: absolute;
    right: 0.6rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--c-text-muted);
    padding: 0.25rem;
    display: grid;
    place-items: center;
}

.auth-form__pwd-toggle:hover {
    color: var(--c-text);
}

/* Checkbox */
.auth-form__checkbox {
    display: flex;
    gap: var(--space-2);
    align-items: flex-start;
    font-size: 0.875rem;
    color: var(--c-text-muted);
    cursor: pointer;
}

.auth-form__checkbox input {
    margin-top: 0.2rem;
    flex-shrink: 0;
}

/* Notice banners */
.auth-notice {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}

.auth-notice--success {
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.auth-notice--error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* Status icons */
.auth-status-icon {
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    display: grid;
    place-items: center;
}

.auth-status-icon--mail {
    background: #eff6ff;
    color: #3b82f6;
}

.auth-status-icon--success {
    background: #f0fdf4;
    color: #22c55e;
}

.auth-status-icon--error {
    background: #fef2f2;
    color: #ef4444;
}

/* Verification steps */
.auth-steps {
    display: grid;
    gap: var(--space-2);
    padding-left: var(--space-5);
    color: var(--c-text-muted);
    font-size: 0.9rem;
    list-style: decimal;
    text-align: left;
}

/* CAPTCHA (se muestra solo tras varios intentos fallidos) */
.auth-form__captcha-img {
    display: block;
    width: 150px;
    height: 50px;
    border: 1px solid var(--c-border, #d1d5db);
    border-radius: var(--radius-sm, 6px);
    background: #f5f7fa;
}

.auth-form__captcha input {
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

/* 2FA / seguridad */
.auth-card--wide {
    max-width: 32rem;
}

.auth-setup-key {
    font-family: var(--font-mono, monospace);
    font-size: 1.1rem;
    letter-spacing: 0.12em;
    text-align: center;
}

.auth-qr {
    display: flex;
    justify-content: center;
    margin: var(--space-3) 0;
}

.auth-qr img {
    width: 180px;
    height: 180px;
    border: 8px solid #fff;
    border-radius: var(--radius-sm, 6px);
    background: #fff;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.12);
    image-rendering: pixelated;
}

.auth-setup-uri {
    margin: var(--space-2) 0 var(--space-3);
    font-size: 0.85rem;
    color: var(--c-text-muted);
}

.auth-setup-uri input {
    width: 100%;
    margin-top: var(--space-2);
    font-family: var(--font-mono, monospace);
    font-size: 0.75rem;
}

.auth-recovery {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2);
    margin-top: var(--space-2);
    padding: 0;
    list-style: none;
}

.auth-recovery__code {
    font-family: var(--font-mono, monospace);
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    padding: var(--space-2);
    background: rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-sm, 6px);
    text-align: center;
}

.auth-card__notice--success {
    display: flex;
    gap: var(--space-3);
    align-items: flex-start;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    background: rgba(22, 163, 74, 0.08);
    border: 1px solid rgba(22, 163, 74, 0.35);
}

.auth-form__submit--danger {
    background: var(--c-danger, #dc2626);
}