.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--body-bg);
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.auth-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(var(--primary-rgb), 0.06) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(99, 102, 241, 0.04) 0%, transparent 50%);
    animation: authBgFloat 20s ease infinite;
    pointer-events: none;
}

@keyframes authBgFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(2%, -2%) rotate(1deg); }
    66% { transform: translate(-1%, 1%) rotate(-1deg); }
}

.auth-container {
    width: 100%;
    max-width: 440px;
    position: relative;
    z-index: 1;
}

.auth-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(16px);
    padding: 40px 36px;
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 32px;
}

.auth-logo .logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    font-weight: 800;
}

.auth-logo .logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--body-color);
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-header h4 {
    font-weight: 700;
    color: var(--body-color);
    margin-bottom: 6px;
    font-size: 22px;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 14px;
    margin: 0;
}

.auth-form .form-group {
    margin-bottom: 20px;
}

.auth-form .form-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--body-color);
    margin-bottom: 6px;
}

.auth-form .input-group {
    position: relative;
}

.auth-form .input-group .input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 18px;
    z-index: 5;
    pointer-events: none;
}

.auth-form .input-group .form-control {
    padding-left: 46px;
    padding-right: 46px;
    height: 48px;
    font-size: 14px;
    background: var(--input-bg);
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-sm);
    color: var(--body-color);
    transition: var(--transition-base);
}

.auth-form .input-group .form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
    background: var(--input-bg);
}

.auth-form .input-group .form-control::placeholder {
    color: var(--text-muted);
}

.auth-form .input-group .toggle-password {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 18px;
    padding: 0;
    z-index: 5;
    transition: color 0.2s;
}

.auth-form .input-group .toggle-password:hover {
    color: var(--body-color);
}

.auth-form .input-group.input-error .form-control {
    border-color: var(--danger);
}

.auth-form .input-error-text {
    font-size: 12px;
    color: var(--danger);
    margin-top: 4px;
    display: none;
}

.auth-form .input-group.input-error + .input-error-text {
    display: block;
}

.auth-form .form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.auth-form .form-check label {
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
}

.auth-form .form-check a {
    color: var(--primary);
    font-weight: 600;
}

.auth-btn {
    width: 100%;
    height: 48px;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
}

.auth-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.1);
    opacity: 0;
    transition: opacity 0.3s;
}

.auth-btn:hover::after { opacity: 1; }

.auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(var(--primary-rgb), 0.4);
}

.auth-btn:active {
    transform: translateY(0);
}

.auth-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.auth-btn .spinner-border {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
}

.auth-footer p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

.auth-footer a {
    color: var(--primary);
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 24px 0;
}

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

.auth-divider span {
    font-size: 13px;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.auth-social {
    display: flex;
    gap: 12px;
}

.auth-social button {
    flex: 1;
    height: 44px;
    border: 1.5px solid var(--border-color);
    background: var(--card-bg);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition-base);
}

.auth-social button:hover {
    background: var(--hover-bg);
    border-color: var(--text-muted);
    color: var(--body-color);
}

.auth-alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.auth-alert.success {
    background: rgba(var(--success-rgb), 0.1);
    color: var(--success);
    border: 1px solid rgba(var(--success-rgb), 0.2);
}

.auth-alert.error {
    background: rgba(var(--danger-rgb), 0.1);
    color: var(--danger);
    border: 1px solid rgba(var(--danger-rgb), 0.2);
}

.auth-alert i {
    font-size: 18px;
}

.auth-features {
    display: flex;
    gap: 8px;
    margin-top: 32px;
    justify-content: center;
}

.auth-features span {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.auth-features span i {
    font-size: 14px;
    color: var(--success);
}

.lock-screen-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #fff;
    font-weight: 700;
    margin: 0 auto 16px;
}

.lock-screen-name {
    text-align: center;
    font-size: 18px;
    font-weight: 600;
    color: var(--body-color);
    margin-bottom: 24px;
}

@media (max-width: 575.98px) {
    .auth-card {
        padding: 28px 24px;
    }

    .auth-header h4 {
        font-size: 20px;
    }
}