/* ==========================================================================
   Auth Pages — Dark Premium Theme
   ========================================================================== */

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

.auth-body::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 10%, rgba(27, 40, 72, 0.5) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 90%, rgba(0, 92, 139, 0.25) 0%, transparent 55%);
    pointer-events: none;
    transition: opacity var(--transition-base);
}

html[data-theme="light"] .auth-body::before {
    background:
        radial-gradient(ellipse 80% 60% at 20% 10%, rgba(27, 40, 72, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 90%, rgba(0, 92, 139, 0.06) 0%, transparent 55%);
}


.auth-card {
    position: relative;
    width: 100%;
    max-width: 440px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: authFadeIn 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes authFadeIn {
    from { opacity: 0; transform: translateY(16px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.auth-header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    padding: var(--space-10) var(--space-8) var(--space-8);
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.auth-logo {
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    backdrop-filter: blur(8px);
}
.auth-logo i { font-size: 1.5rem; color: var(--text-on-dark); }

.auth-header h1 {
    font-size: 1.375rem;
    font-weight: 700;
    margin: 0 0 var(--space-1);
    letter-spacing: -0.02em;
    color: var(--text-on-dark);
}
.auth-header p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.65);
    margin: 0;
}

.auth-body-content {
    padding: var(--space-8);
}

.auth-footer {
    text-align: center;
    padding: 0 var(--space-8) var(--space-6);
    font-size: 0.75rem;
    color: var(--text-faint);
}

.auth-intro {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: var(--space-5);
    line-height: 1.6;
}

.btn-auth,
.btn-auth:hover,
.btn-auth:focus,
.btn-auth:active {
    background: var(--primary);
    border: none;
    border-radius: 12px;
    padding: 0.75rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-on-dark) !important;
    width: 100%;
    transition: all var(--transition-fast);
    cursor: pointer;
}
.btn-auth:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 92, 139, 0.35);
}
.btn-auth:active { transform: translateY(0); }

.link-auth {
    color: var(--primary-hover);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.8125rem;
    transition: color var(--transition-fast);
}
.link-auth:hover {
    color: #33A3D4;
    text-decoration: underline;
}

.auth-password-toggle {
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-left: none;
    border-radius: 0 12px 12px 0;
    color: var(--text-muted);
    padding: 0 0.875rem;
    transition: all var(--transition-fast);
}
.auth-password-toggle:hover {
    background: var(--surface-hover);
    color: var(--text);
}
.input-group .form-control.auth-password-input {
    border-right: none;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.auth-check-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.auth-alt-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
    padding: 0.6875rem 1rem;
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}
.auth-alt-btn:hover {
    background: var(--surface-hover);
    border-color: var(--border-strong);
    color: var(--text);
    transform: translateY(-1px);
}

/* CPF reset page */
.cpf-icon {
    width: 52px;
    height: 52px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-3);
}
.cpf-icon i { font-size: 1.25rem; color: var(--text-on-dark); }

.step-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--success-muted);
    border: 1px solid rgba(50, 173, 120, 0.25);
    border-radius: var(--radius-sm);
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-5);
    font-size: 0.8125rem;
    color: var(--success-light);
}
.step-indicator i { font-size: 1rem; color: var(--success); flex-shrink: 0; }

.password-wrapper { position: relative; }
.toggle-password {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: var(--space-1);
    display: flex;
    align-items: center;
    transition: color var(--transition-fast);
}
.toggle-password:hover { color: var(--text); }

.password-strength {
    height: 3px;
    border-radius: var(--radius-pill);
    margin-top: var(--space-2);
    background: var(--border);
    overflow: hidden;
}
.password-strength-bar {
    height: 100%;
    border-radius: var(--radius-pill);
    transition: width var(--transition-base), background var(--transition-base);
    width: 0;
}