/* ============================================================
   AUTH — Centered card on dotted backdrop
   ============================================================ */

.auth-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    background: var(--color-bg);
    position: relative;
    overflow: hidden;
}

.auth-shell::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 1px 1px, var(--color-border-strong) 1px, transparent 0);
    background-size: 24px 24px;
    opacity: 0.5;
    pointer-events: none;
    -webkit-mask-image: radial-gradient(circle at 50% 50%, black 0%, transparent 70%);
    mask-image: radial-gradient(circle at 50% 50%, black 0%, transparent 70%);
}

.auth-shell::after {
    content: "";
    position: absolute;
    width: 480px;
    height: 480px;
    border-radius: var(--radius-full);
    background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
    top: -120px;
    right: -120px;
    pointer-events: none;
    filter: blur(40px);
    opacity: 0.5;
}

.auth-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 440px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-10) var(--space-8);
    box-shadow: 0 24px 64px -16px rgba(0, 0, 0, 0.18);
    animation: fadeInUp 500ms cubic-bezier(0.4, 0, 0.2, 1) both;
}

[data-theme="dark"] .auth-card {
    box-shadow: 0 24px 64px -16px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.auth-card__brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
    font-weight: 700;
    font-size: 1rem;
}

.auth-card__brand-mark {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--color-surface-inverse);
    color: var(--color-text-inverse);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1rem;
    letter-spacing: -0.02em;
}

.auth-card__brand-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    object-fit: cover;
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
}

.auth-card__title {
    font-size: 1.875rem;
    line-height: 1.1;
    letter-spacing: -0.025em;
    font-weight: 700;
    text-transform: uppercase;
}

.auth-card__subtitle {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    margin-top: var(--space-2);
}

.auth-card__form {
    margin-top: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.auth-card__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.auth-card__link {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-fast), color var(--transition-fast);
}

.auth-card__link:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.auth-card__footer {
    margin-top: var(--space-6);
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.8125rem;
}

.auth-card__back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    margin-bottom: var(--space-5);
    transition: color var(--transition-fast);
}

.auth-card__back:hover {
    color: var(--color-text);
}

.auth-card__back svg {
    width: 14px;
    height: 14px;
}

.auth-status {
    text-align: center;
    padding: var(--space-4) 0;
    animation: fadeInUp 500ms cubic-bezier(0.4, 0, 0.2, 1) both;
}

.auth-status__icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    margin: 0 auto var(--space-5);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.auth-status__icon--success {
    background: var(--color-accent);
    color: var(--color-accent-ink);
}

.auth-status__icon--danger {
    background: var(--color-danger);
    color: white;
}

.auth-status__icon svg {
    width: 28px;
    height: 28px;
}

.auth-status__title {
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.018em;
}

.auth-status__text {
    color: var(--color-text-muted);
    margin-top: var(--space-3);
}

/* === Backup Codes === */

.backup-codes {
    margin-top: var(--space-5);
    padding: var(--space-4);
    background: var(--color-surface-2);
    border: 1px dashed var(--color-border-strong);
    border-radius: var(--radius-md);
}

.backup-codes__list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
}

.backup-codes__item {
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-align: center;
    padding: 10px;
    background: var(--color-surface);
    border-radius: var(--radius-full);
    color: var(--color-text);
}

/* === QR Block === */

.qr-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-5);
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-5);
}

.qr-block img {
    width: 200px;
    height: 200px;
    border-radius: var(--radius-sm);
    background: white;
    padding: var(--space-2);
}

.qr-block__secret {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--color-text);
    letter-spacing: 0.04em;
    word-break: break-all;
    padding: 8px 12px;
    background: var(--color-surface);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    text-align: center;
}