:root {
     --primary-color: #1a73e8;
     --secondary-color: #4285f4;
     --accent-color: #34a853;
     --dark-color: #202124;
     --light-color: #f8f9fa;
     --warning-color: #fbbc05;
     --danger-color: #ea4335;
 }

 body {
     font-family: 'Roboto', sans-serif;
     background-color: #f5f7fa;
     color: #333;
     line-height: 1.6;
     transition: all 0.3s ease;
 }

 body.dark-mode {
     background-color: #121212;
     color: #e0e0e0;
 }

 .dark-mode .card {
     background-color: #1e1e1e;
     box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
     color: #e0e0e0;
 }

 .dark-mode .form-control {
     background-color: #2d2d2d;
     border-color: #444;
     color: #e0e0e0;
 }

 .dark-mode .form-control:focus {
     background-color: #2d2d2d;
     border-color: var(--secondary-color);
     box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
     color: #e0e0e0;
 }

 .dark-mode .modal-content {
     background-color: #1e1e1e;
     color: #e0e0e0;
 }

 .dark-mode .modal-header {
     border-bottom-color: #444;
 }

 .dark-mode .modal-footer {
     border-top-color: #444;
 }

 .dark-mode .alert-info {
     background-color: #1a3e72;
     border-color: #2a4d7a;
     color: #e0e0e0;
 }

 .dark-mode .text-muted {
     background-color: #2383cd;
     color: #ffffff;
 }

 .dark-mode .alert-warning {
     background-color: #5a4a21;
     border-color: #6b5a32;
     color: #e0e0e0;
 }

 .dark-mode .result-display {
     background-color: rgba(26, 115, 232, 0.2);
 }

 h1,
 h2,
 h3,
 h4,
 h5,
 h6 {
     font-family: 'Poppins', sans-serif;
     font-weight: 600;
 }

 .navbar-brand {
     font-weight: 700;
     font-size: 1.5rem;
 }

 .card {
     border-radius: 10px;
     box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
     border: none;
     margin-bottom: 20px;
     transition: transform 0.3s ease, box-shadow 0.3s ease;
 }

 .card:hover {
     transform: translateY(-5px);
     box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
 }

 .card-header {
     border-radius: 10px 10px 0 0 !important;
     font-weight: 600;
     padding: 15px 20px;
 }

 .btn-primary {
     background-color: var(--primary-color);
     border-color: var(--primary-color);
     padding: 10px 25px;
     border-radius: 8px;
     font-weight: 500;
 }

 .btn-primary:hover {
     background-color: #0d5bb5;
     border-color: #0d5bb5;
 }

 .btn-success {
     background-color: var(--accent-color);
     border-color: var(--accent-color);
     padding: 10px 25px;
     border-radius: 8px;
     font-weight: 500;
 }

 .btn-success:hover {
     background-color: #2d8e4a;
     border-color: #2d8e4a;
 }

 .form-control {
     border-radius: 8px;
     padding: 12px 15px;
     border: 1px solid #dfe1e5;
 }

 .form-control:focus {
     border-color: var(--secondary-color);
     box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
 }

 .login-container {
     max-width: 500px;
     margin: 0 auto;
     padding: 30px;
     background: white;
     border-radius: 10px;
     box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
 }

 .result-display {
     font-size: 1.5rem;
     color: var(--primary-color);
     font-weight: 700;
     padding: 15px;
     background-color: rgba(26, 115, 232, 0.1);
     border-radius: 8px;
     text-align: center;
     margin: 15px 0;
 }

 footer {
     background-color: var(--dark-color);
     color: white;
     padding: 40px 0 20px;
 }

 .feature-icon {
     font-size: 2rem;
     color: var(--primary-color);
     margin-bottom: 15px;
 }

 .section-title {
     position: relative;
     margin-bottom: 20px;
     padding-bottom: 15px;
 }

 .section-title:after {
     content: '';
     position: absolute;
     left: 50%;
     bottom: 0;
     transform: translateX(-50%);
     width: 80px;
     height: 3px;
     background: var(--primary-color);
 }

 .login-link {
     color: var(--primary-color);
     font-weight: 500;
     text-decoration: none;
 }

 .login-link:hover {
     text-decoration: underline;
 }

 .error-message {
     color: var(--danger-color);
     font-weight: 500;
 }

 /* Novo estilo para o modal de login */
 .login-modal {
     border-radius: 12px;
     overflow: hidden;
 }

 .login-modal .modal-header {
     background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
     padding: 1.5rem;
     border-bottom: none;
 }

 .login-modal .modal-body {
     padding: 2rem;
 }

 .login-modal .form-floating label {
     color: #6c757d;
 }

 .login-modal .btn-login {
     background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
     border: none;
     padding: 12px;
     font-weight: 600;
     letter-spacing: 0.5px;
 }

 .login-modal .divider {
     position: relative;
     text-align: center;
     margin: 1.5rem 0;
 }

 .login-modal .divider::before {
     content: "";
     position: absolute;
     top: 50%;
     left: 0;
     right: 0;
     height: 1px;
     background-color: #dee2e6;
     z-index: 1;
 }

 .login-modal .divider span {
     position: relative;
     padding: 0 10px;
     background-color: white;
     z-index: 2;
     color: #6c757d;
 }

 .dark-mode .login-modal .divider span {
     background-color: #1e1e1e;
     color: #e0e0e0;
 }

 .theme-toggle {
     position: fixed;
     bottom: 20px;
     right: 20px;
     width: 50px;
     height: 50px;
     border-radius: 50%;
     background-color: var(--primary-color);
     color: white;
     display: flex;
     align-items: center;
     justify-content: center;
     cursor: pointer;
     box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
     z-index: 1000;
     border: none;
 }

 .dark-mode .theme-toggle {
     background-color: var(--warning-color);
     color: #333;
 }

 .resultado-sucesso {
     background-color: #f9f9f9;
     padding: 15px;
     border-radius: 8px;
     font-family: Arial, sans-serif;
 }

 .resultado-parcial {
     font-size: 14px;
     color: #444;
     margin: 4px 0;
 }

 .resultado-total {
     font-size: 22px;
     color: #1a1a1a;
     margin-top: 15px;
     font-weight: bold;
 }

 .error-message {
     color: red;
     font-weight: bold;
     font-size: 16px;
 }



 @media (max-width: 576px) {
     .navbar-brand {
         font-weight: 700;
         font-size: 1rem;
     }
 }