/* Authentication Page Styles */
.auth-container {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    padding: 20px 0;
}

.auth-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    margin: 20px 0;
}

.auth-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
}

.form-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
}

.auth-form {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-label {
    font-weight: 600;
    color: #555;
    margin-bottom: 8px;
}

.form-control {
    border: 2px solid #e9ecef;
    border-radius: 10px;
    padding: 12px 15px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.input-group-text {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-right: none;
    color: #667eea;
    font-weight: 600;
}

.input-group .form-control {
    border-left: none;
}

.btn {
    border-radius: 10px;
    padding: 12px 30px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, #56ab2f 0%, #a8e6cf 100%);
    color: white;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(86, 171, 47, 0.3);
}

.alert {
    border-radius: 10px;
    border: none;
    padding: 15px 20px;
    margin-bottom: 20px;
}

.alert-danger {
    background: linear-gradient(135deg, #ff6b6b 0%, #ffa8a8 100%);
    color: white;
}

.alert-success {
    background: linear-gradient(135deg, #56ab2f 0%, #a8e6cf 100%);
    color: white;
}

.text-primary {
    color: #667eea !important;
    text-decoration: none;
    font-weight: 600;
}

.text-primary:hover {
    color: #764ba2 !important;
    text-decoration: underline;
}

/* AdSense Styles */
.adsbygoogle {
    margin: 20px 0;
    border-radius: 10px;
    overflow: hidden;
}

/* Responsive Design */
@media (max-width: 768px) {
    .auth-card {
        padding: 30px 20px;
        margin: 10px;
    }
    
    .auth-title {
        font-size: 2rem;
    }
    
    .form-title {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
}

@media (max-width: 576px) {
    .auth-container {
        padding: 10px 0;
    }
    
    .auth-card {
        padding: 20px 15px;
    }
    
    .auth-title {
        font-size: 1.8rem;
    }
    
    .form-control {
        padding: 10px 12px;
        font-size: 14px;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Form Validation Styles */
.form-control.is-invalid {
    border-color: #dc3545;
}

.form-control.is-valid {
    border-color: #28a745;
}

.invalid-feedback {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875em;
    color: #dc3545;
}

.valid-feedback {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875em;
    color: #28a745;
}

/* Password Strength Indicator */
.password-strength {
    margin-top: 5px;
    height: 4px;
    background: #e9ecef;
    border-radius: 2px;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.password-strength-weak {
    background: #dc3545;
    width: 25%;
}

.password-strength-medium {
    background: #ffc107;
    width: 50%;
}

.password-strength-strong {
    background: #28a745;
    width: 75%;
}

.password-strength-very-strong {
    background: #20c997;
    width: 100%;
}