/* Login / Registration Screen */

.auth-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
}

.auth-container {
    background: var(--surface-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 32px;
    width: 100%;
    max-width: 400px;
}

.auth-container h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 4px;
}

.auth-subtitle {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.auth-tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.auth-tab {
    flex: 1;
    padding: 10px;
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    border: none;
    background: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.15s;
}

.auth-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.auth-form .form-group {
    margin-bottom: 16px;
}

.btn-block {
    width: 100%;
    justify-content: center;
    padding: 10px;
    font-size: 14px;
}

/* FIDO2 / Passkey */
.fido2-divider {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 12px 0 0;
    color: var(--text-muted);
    font-size: 12px;
}

.fido2-divider::before,
.fido2-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.btn-passkey {
    margin-top: 8px;
    background: var(--surface-color);
    border: 1.5px solid var(--border-color);
    color: var(--text-color);
    font-weight: 600;
    transition: border-color 0.15s, background 0.15s;
}

.btn-passkey:hover:not(:disabled) {
    border-color: var(--primary-color);
    background: var(--hover-color, #f0f4ff);
}

.btn-passkey-card {
    width: 100%;
    margin-top: 8px;
    font-size: 12px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 5px 8px;
    border-radius: var(--radius-sm, 4px);
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
}

.btn-passkey-card:hover:not(:disabled) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}