/* ==========================================================================
   Configurações Globais e Variáveis de Cores (Paleta Verde e Terra)
   ========================================================================== */
:root {
    --primary-green: #2e6f40;
    --light-green: #eef7f2;
    --dark-green: #1b4324;
    --earth-brown: #8c6239;
    --dark-brown: #593e25;
    --light-beige: #f9f6f0;
    --text-color: #333333;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

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

.container-small {
    max-width: 650px;
}

/* ==========================================================================
   Header e Navegação
   ========================================================================== */
.main-header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo h1 {
    font-size: 1.5rem;
    color: var(--dark-green);
}

.logo h1 span {
    color: var(--earth-brown);
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    margin-left: 20px;
    font-weight: 600;
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--primary-green);
}

/* ==========================================================================
   Seção Hero (Banner Principal)
   ========================================================================== */
.hero-section {
    background: linear-gradient(rgba(27, 67, 36, 0.75), rgba(89, 62, 37, 0.6)), 
                url('https://images.unsplash.com/photo-1500937386664-56d1dfef3854?q=80&w=1470&auto=format&fit=crop') no-repeat center center/cover;
    height: 70vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--white);
    margin-top: 60px; /* Compensa o header fixo */
}

.hero-content h2 {
    font-size: 2.8rem;
    margin-bottom: 15px;
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px auto;
}

.btn-primary {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-green);
    color: var(--white);
    text-decoration: none;
    border-radius: 25px;
    font-weight: bold;
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: var(--dark-green);
    transform: translateY(-2px);
}

/* ==========================================================================
   Seção de Pilares (Cards Informativos)
   ========================================================================== */
.features-section {
    padding: 80px 0;
    background-color: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2rem;
    color: var(--dark-green);
    margin-bottom: 40px;
}

.grid-pilares {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.card {
    background-color: var(--light-green);
    padding: 30px;
    border-radius: 8px;
    border-bottom: 4px solid var(--primary-green);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.card h4 {
    color: var(--dark-green);
    margin-bottom: 10px;
    font-size: 1.3rem;
}

/* ==========================================================================
   Seção Interativa (Calculadora)
   ========================================================================== */
.interactive-section {
    padding: 80px 0;
}

.calc-box {
    background-color: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    border: 1px solid rgba(140, 98, 57, 0.2);
}

.calc-box h3 {
    color: var(--dark-brown);
    text-align: center;
    margin-bottom: 10px;
}

.calc-description {
    text-align: center;
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 30px;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark-green);
}

.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
    background-color: var(--white);
    outline: none;
    transition: var(--transition);
}

.form-group select:focus {
    border-color: var(--primary-green);
}

.btn-submit {
    width: 100%;
    padding: 14px;
    background-color: var(--earth-brown);
    color: var(--white);
    border: none;
    border-radius: 6px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.btn-submit:hover {
    background-color: var(--dark-brown);
}

/* Painel de Resultados */
.result-box {
    margin-top: 35px;
    padding: 25px;
    border-radius: 8px;
    text-align: center;
    animation: fadeIn 0.5s ease-in-out;
}

.result-box.excelente { background-color: #d4edda; color: #155724; }
.result-box.regular { background-color: #fff3cd; color: #856404; }
.result-box.critico { background-color: #f8d7da; color: #721c24; }

.hidden {
    display: none;
}

.score-display {
    font-size: 3.5rem;
    font-weight: 800;
    margin: 10px 0;
}

.score-status {
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 10px;
    text-transform: uppercase;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Rodapé
   ========================================================================== */
.main-footer {
    background-color: var(--dark-green);
    color: var(--white);
    text-align: center;
    padding: 25px 0;
    font-size: 0.9rem;
    border-top: 5px solid var(--earth-brown);
}

/* ==========================================================================
   Responsividade (Media Queries)
   ========================================================================== */
@media (max-width: 768px) {
    .header-flex {
        flex-direction: column;
        gap: 10px;
    }
    .nav-menu a {
        margin: 0 10px;
    }
    .hero-content h2 {
        font-size: 2rem;
    }
    .calc-box {
        padding: 20px;
    }
}