:root {
    --primary-color: #2196f3;
    --secondary-color: #64b5f6;
    --accent-color: #0d47a1;
    --text-color: #333;
    --light-text: #666;
    --background-color: #f5f5f5;
    --card-background: #fff;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --danger-color: #f44336;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
}

header h1 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 2.5rem;
}

header p {
    color: var(--light-text);
    font-size: 1.1rem;
}

.card {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 25px;
    margin-bottom: 25px;
}

.card h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.5rem;
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 10px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(33, 150, 243, 0.2);
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-color);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: #1e88e5;
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background-color: #d32f2f;
}

.actions {
    display: flex;
    justify-content: space-between;
    margin-bottom: 25px;
}

.actions button {
    flex: 1;
    margin: 0 10px;
}

.actions button:first-child {
    margin-left: 0;
}

.actions button:last-child {
    margin-right: 0;
}

.resultado {
    display: none;
}

.resultado-item {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.resultado-item:last-child {
    border-bottom: none;
}

.resultado-item h3 {
    color: var(--accent-color);
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.resultado-valor {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.resultado-valor.total {
    color: var(--success-color);
    font-size: 2.2rem;
}

.resultado-classificacao {
    font-weight: 500;
    margin-bottom: 5px;
}

.resultado-detalhes {
    color: var(--light-text);
    font-size: 0.9rem;
}

.dicas {
    margin-top: 20px;
}

.dicas h3 {
    margin-bottom: 15px;
}

.dicas ul {
    list-style-type: none;
}

.dicas li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.dicas li:before {
    content: "💧";
    position: absolute;
    left: 0;
}

.compartilhar {
    margin-top: 30px;
    text-align: center;
}

.compartilhar h3 {
    margin-bottom: 15px;
}

.social-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.btn-social {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-whatsapp {
    background-color: #25D366;
}

.btn-facebook {
    background-color: #1877F2;
}

.btn-twitter {
    background-color: #1DA1F2;
}

.btn-instagram {
    background: linear-gradient(45deg, #405DE6, #5851DB, #833AB4, #C13584, #E1306C, #FD1D1D);
}

.btn-social:hover {
    transform: scale(1.1);
}

.treino-item {
    background-color: #f9f9f9;
    border-radius: var(--border-radius);
    padding: 15px;
    margin-bottom: 15px;
    border-left: 4px solid var(--secondary-color);
}

.treino-item h3 {
    color: var(--accent-color);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.treino-item .btn-danger {
    margin-top: 10px;
    padding: 8px 15px;
    font-size: 0.9rem;
}

footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px 0;
    color: var(--light-text);
    font-size: 0.9rem;
}

/* Responsividade */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .card {
        padding: 20px;
    }
    
    .actions {
        flex-direction: column;
    }
    
    .actions button {
        margin: 5px 0;
    }
    
    .resultado-valor {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .card {
        padding: 15px;
    }
    
    .social-buttons {
        flex-wrap: wrap;
    }
}