/* =============================================
   VARIÁVEIS E CONFIGURAÇÕES GLOBAIS
   ============================================= */
   :root {
    --green: #2ecc71;
    --dark-green: #27ae60;
    --blue: #3498db;
    --dark: #2c3e50;
    --light-gray: #f9f9f9;
    --white: #ffffff;
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 15px 30px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

body {
    color: #333;
    background-color: var(--light-gray);
    line-height: 1.6;
}

/* =============================================
   LAYOUT PRINCIPAL
   ============================================= */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 5%;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 50px;
    position: relative;
    display: inline-block;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50%;
    height: 4px;
    background: var(--green);
}

.text-green {
    color: var(--green);
}

/* =============================================
   HEADER E NAVEGAÇÃO
   ============================================= */
.header-eco {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 5%;
    background: var(--white);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.logo-container img {
    height: 112px;
    width: auto;
    transition: var(--transition);
}

.menu ul {
    display: flex;
    gap: 30px;
    list-style: none;
    padding: 0;
    margin: 0;
    align-items: center;
}

.menu li {
    margin: 0;
}

.menu a {
    text-decoration: none;
    color: #333;
    font-weight: 600;
    font-size: 1.1rem;
    padding: 10px 15px;
    border-radius: 5px;
    transition: var(--transition);
}

.menu a:hover {
    background-color: #f0f0f0;
    color: var(--green);
}

/* MENU RESPONSIVO */
.menu-toggle {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: #333;
    transition: var(--transition);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .menu ul {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100px;
        left: 0;
        width: 100%;
        background: white;
        padding: 20px 5%;
        box-shadow: var(--shadow-md);
    }

    .menu.active ul {
        display: flex;
    }
    
    .menu.active .menu-toggle span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu.active .menu-toggle span:nth-child(2) {
        opacity: 0;
    }
    
    .menu.active .menu-toggle span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
}

/* =============================================
   HERO SECTION
   ============================================= */
.hero-plasma {
    margin-top: 110px; /* Altura do header */
    height: calc(100vh - 110px); /* Ajuste preciso da altura */
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), 
                url('imagens/plasma-bg.jpg') center/cover;
    color: var(--white);
    padding: 0 5%;
    margin-top: 80px;
    box-sizing: border-box;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p.destaque {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.9);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* =============================================
   BOTÕES
   ============================================= */
.cta-button {
    background: linear-gradient(to right, var(--green), var(--dark-green));
    color: var(--white);
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: bold;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(46, 204, 113, 0.3);
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: 0 7px 20px rgba(46, 204, 113, 0.4);
}

/* =============================================
   SEÇÕES DE CONTEÚDO
   ============================================= */
.tech-grid, .aplicacoes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.tech-card, .aplicacao-card {
    background: var(--white);
    border-radius: 10px;
    padding: 30px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.tech-card:hover, .aplicacao-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.tech-card h3, .aplicacao-card h3 {
    color: var(--green);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.aplicacao-card {
    text-align: center;
}

.aplicacao-card img {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    object-fit: contain;
}

/* =============================================
   SEÇÃO DE IMPACTO
   ============================================= */
.impacto-stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 50px;
    margin-top: 50px;
}

.stat-item {
    text-align: center;
    min-width: 150px;
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--green);
    line-height: 1;
    margin-bottom: 10px;
    display: block;
}

/* =============================================
   FORMULÁRIO DE CONTATO
   ============================================= */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}

.contact-form h3 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--green);
    font-size: 1.8rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(46, 204, 113, 0.2);
}

.contact-form textarea {
    height: 150px;
    resize: vertical;
}

/* =============================================
   FOOTER
   ============================================= */
.footer-eco {
    background-color: var(--dark);
    color: var(--white);
    text-align: center;
    padding: 30px 5%;
}

.footer-content p {
    margin-bottom: 10px;
}

.footer-content strong {
    color: var(--green);
}

/* =============================================
   EFEITOS E ANIMAÇÕES
   ============================================= */
body:not(.loaded) {
    opacity: 0;
    overflow: hidden;
}

body.loaded {
    opacity: 1;
    transition: opacity 0.5s ease;
}

/* =============================================
   RESPONSIVIDADE
   ============================================= */

@media (max-width: 768px) {
    .header-eco {
        flex-direction: row;
        padding: 15px 5%;
    }
    
    .menu ul {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero-content h1 {
        font-size: 2.2rem;
    }
    
    .hero-content p.destaque {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .tech-grid, .aplicacoes-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-button {
        padding: 12px 25px;
        font-size: 0.9rem;
    }
    
    .stat-item {
        min-width: 120px;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .logo-container img {
        height: 140px;
        width: auto;
        transition: var(--transition);
    }
    
}
header {
    background-color: white !important; /* Força o branco */
    transition: background-color 0.3s; /* Suaviza a mudança de cor */
}
header.scrolled {
    background-color: white !important;
}