/* Estilos Globais */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #303030;
    color: #f5f5f5;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: #e74c3c;
    transition: color 0.3s;
}

a:hover {
    color: #c0392b;
}

ul {
    list-style: none;
}

/* Header */
header {
    background-color: #2c3e50;
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 1.8rem;
    display: flex;
    align-items: center;
}

header h1 i {
    margin-right: 10px;
    color: #e74c3c;
}

header nav ul {
    display: flex;
}

header nav ul li {
    margin-left: 20px;
}

header nav ul li a {
    color: white;
    font-weight: 500;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

header nav ul li a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #e74c3c, #7d2c2c);
    color: white;
    text-align: center;
    padding: 3rem 0;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
}

/* Calculadoras Section */
.calculadoras, .macronutrientes {
    padding: 3rem 0;
}

.calculadoras h2, .macronutrientes h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #9e9e9e;
    position: relative;
}

.calculadoras h2:after, .macronutrientes h2:after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background-color: #e74c3c;
    margin: 10px auto;
}

.calculadoras-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.calc-card {
    background-color: #404040;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
    padding: 20px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.calc-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.calc-card h3 {
    color: #ff9254;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.calc-card h3 i {
    margin-right: 10px;
    color: #e74c3c;
}

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

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

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

.form-group input, .form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.btn-primary {
    background-color: #e74c3c;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
    width: 100%;
}

.btn-primary:hover {
    background-color: #c0392b;
}

.resultado {
    background-color: #404040;
    padding: 15px;
    border-radius: 4px;
    border-left: 3px solid #e74c3c;
}

/* Macronutrientes Section */
.macros-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.macro-card {
    background-color: #404040;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
    padding: 20px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.macro-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.macro-card h3 {
    color: #ff9254;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.macro-card h3 i {
    margin-right: 10px;
    color: #e74c3c;
}

/* Footer */
footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 2rem;
}

/* Responsividade */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
    }
    
    header nav ul {
        margin-top: 15px;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .calculadoras-grid, .macros-grid {
        grid-template-columns: 1fr;
    }
    
    header nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    header nav ul li {
        margin: 5px 0;
    }
}