/* ========================
   VARIABLES & RESET (TECH LIGHT MODE - MOBILE PERFECT)
   ======================== */
:root {
    --bg-main: #FFFFFF;       
    --bg-secondary: #F8FAFC;  
    --bg-tech: #F1F5F9;       
    
    --text-main: #0F172A;     
    --text-secondary: #475569; 
    
    --accent: #2563EB;        
    --accent-hover: #1D4ED8;  
    --accent-light: #DBEAFE;  
    
    --border-light: #E2E8F0;  
    --border-tech: #CBD5E1;   

    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(148, 163, 184, 0.2);

    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Chakra Petch', sans-serif;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --shadow-tech-sm: 0 4px 6px -1px rgba(37, 99, 235, 0.08), 0 2px 4px -1px rgba(37, 99, 235, 0.04);
    --shadow-tech-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent; /* Remove flash de toque no mobile */
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden; /* Impede rolagem lateral indesejada */
}

body {
    font-family: var(--font-body);
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-main);
    overflow-x: hidden;
    width: 100%;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.2;
    letter-spacing: -0.5px;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; height: auto; }

/* ========================
   UTILITIES
   ======================== */
.container {
    width: 90%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Ajuste de Padding para Mobile First */
.section-padding { padding: 60px 0; position: relative; overflow: hidden; }
@media (min-width: 768px) {
    .section-padding { padding: 100px 0; }
}

.bg-dark { background-color: var(--text-main); color: var(--bg-main); }
.bg-gradient { 
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-main) 100%);
}
.text-center { text-align: center; }

.pre-title {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin-bottom: 15px;
    font-family: var(--font-body);
    background: var(--accent-light);
    padding: 4px 10px;
    border-radius: 4px;
}
.pre-title.white { background: rgba(255,255,255,0.1); color: #fff; }

.section-header { margin-bottom: 50px; }
.section-header h2 { font-size: 2rem; margin-bottom: 15px; color: var(--text-main); }
@media (min-width: 768px) { .section-header h2 { font-size: 2.8rem; margin-bottom: 20px; } }

.bg-dark .section-header h2 { color: var(--bg-main); }

.section-desc { color: var(--text-secondary); max-width: 700px; margin: 0 auto; font-size: 1rem; }
.section-desc.white { color: rgba(255,255,255,0.7); }

/* BOTÕES */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-heading);
    border: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.85rem;
    width: 100%; /* Full width no mobile */
}
@media (min-width: 768px) { .btn { width: auto; padding: 14px 30px; } }

.btn-primary {
    background-color: var(--accent);
    color: #fff;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}
.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}
.btn-primary i { font-size: 1.1rem; }

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--text-main);
    color: var(--text-main);
}
.btn-secondary:hover {
    background-color: var(--text-main);
    color: #fff;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    width: 100%;
    margin-top: 20px;
}
.btn-outline:hover {
    background-color: var(--accent);
    color: #fff;
}

.btn-link {
    background: none;
    border: none;
    color: var(--accent);
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 15px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.8rem;
}

/* EFEITO VIDRO */
.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-tech-sm);
    border-radius: 12px;
}

/* ========================
   HEADER & NAV
   ======================== */
#header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    height: 70px;
    display: flex;
    align-items: center;
    transition: var(--transition);
}
@media (min-width: 768px) { #header { height: 80px; background-color: rgba(255, 255, 255, 0.85); } }

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: 0.5px;
}
@media (min-width: 768px) { .logo { font-size: 1.6rem; letter-spacing: 1px; } }

.logo .accent { color: var(--accent); }

.navbar .nav-menu { display: flex; gap: 30px; }
.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    padding: 5px 0;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: width 0.3s ease;
}
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link:hover { color: var(--accent); }

.hamburger { display: none; cursor: pointer; padding: 5px; }
.hamburger .bar {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-main);
    margin: 5px auto;
    transition: var(--transition);
}

/* ========================
   HERO SECTION
   ======================== */
#hero { 
    margin-top: 70px; 
    padding-top: 40px; 
    padding-bottom: 60px; 
    background: radial-gradient(circle at 80% 20%, var(--bg-tech) 0%, var(--bg-main) 60%);
}
@media (min-width: 768px) { #hero { margin-top: 80px; padding-top: 80px; padding-bottom: 80px; } }

.hero-grid {
    display: grid;
    grid-template-columns: 1fr; /* Mobile: 1 coluna */
    gap: 40px;
    align-items: center;
}
@media (min-width: 992px) { .hero-grid { grid-template-columns: 1.1fr 0.9fr; gap: 60px; } }

.hero-content h1 {
    font-size: 2.2rem; /* Mobile */
    margin-bottom: 15px;
    color: var(--text-main);
    line-height: 1.1;
}
@media (min-width: 768px) { .hero-content h1 { font-size: 3.5rem; margin-bottom: 20px; } }

.hero-content .highlight { 
    color: var(--accent); 
    background: linear-gradient(120deg, rgba(37,99,235,0.1) 0%, rgba(37,99,235,0) 100%);
    padding: 0 5px;
    border-radius: 4px;
}

.hero-content .subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 25px;
    max-width: 100%;
}
@media (min-width: 768px) { .hero-content .subtitle { font-size: 1.15rem; margin-bottom: 35px; max-width: 90%; } }

.hero-stats { margin-bottom: 30px; }
.hero-stats li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-main);
    font-size: 0.9rem;
}
@media (min-width: 768px) { .hero-stats li { font-size: 1rem; margin-bottom: 10px; } }

.hero-stats i { color: var(--accent); font-size: 1.1rem; background: var(--accent-light); padding: 4px; border-radius: 4px; }

.hero-buttons { display: flex; gap: 15px; flex-direction: column; width: 100%; }
@media (min-width: 768px) { .hero-buttons { flex-direction: row; flex-wrap: wrap; width: auto; } }

.hero-visual { position: relative; margin-top: 20px; }

.glow-sphere {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
    z-index: 0;
    border-radius: 50%;
}
@media (min-width: 768px) { .glow-sphere { width: 350px; height: 350px; } }

.floating-image {
    position: relative;
    z-index: 1;
    border-radius: 12px;
    box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.15);
    border: 1px solid #fff;
    width: 100%;
}

/* Ajuste do card flutuante para não vazar no mobile */
.data-overlay {
    position: relative; /* No mobile, fica abaixo */
    margin-top: -20px;
    margin-left: auto;
    margin-right: auto;
    width: 90%;
    z-index: 2;
    background: rgba(255, 255, 255, 0.95);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-tech-lg);
    display: flex;
    justify-content: space-around;
    gap: 10px;
}
@media (min-width: 992px) {
    .data-overlay {
        position: absolute;
        bottom: 30px;
        right: -30px;
        margin: 0;
        width: auto;
        gap: 25px;
        padding: 20px;
    }
}

.overlay-item { display: flex; flex-direction: column; align-items: center; }
@media (min-width: 992px) { .overlay-item { align-items: flex-start; } }

.data-value { font-weight: 700; color: var(--accent); font-size: 1.3rem; font-family: var(--font-heading); line-height: 1; }
@media (min-width: 768px) { .data-value { font-size: 1.5rem; } }

.data-label { font-size: 0.65rem; color: var(--text-secondary); text-transform: uppercase; font-weight: 600; margin-top: 5px;}
@media (min-width: 768px) { .data-label { font-size: 0.7rem; } }

/* ========================
   SERVIÇOS
   ======================== */
.services-grid {
    display: grid;
    grid-template-columns: 1fr; /* Mobile: 1 coluna */
    gap: 20px;
    margin-top: 30px;
}
@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }
}

.service-card {
    background: #fff;
    padding: 30px;
    border: 1px solid var(--border-light);
    border-radius: 16px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
@media (min-width: 768px) { .service-card { padding: 40px; } }

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: var(--shadow-tech-lg);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--bg-tech);
    transition: var(--transition);
}
.service-card:hover::before { background: var(--accent); }

.icon-box {
    width: 50px;
    height: 50px;
    background: var(--bg-tech);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: var(--text-main);
    transition: var(--transition);
}
@media (min-width: 768px) { .icon-box { width: 60px; height: 60px; font-size: 1.8rem; margin-bottom: 25px; } }

.service-card:hover .icon-box { background: var(--accent); color: #fff; }

.service-card h3 { margin-bottom: 10px; font-size: 1.3rem; }
@media (min-width: 768px) { .service-card h3 { font-size: 1.4rem; margin-bottom: 15px; } }

.service-card p { margin-bottom: 20px; color: var(--text-secondary); font-size: 0.95rem; }

/* ========================
   FLUXO
   ======================== */
.flow-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 30px;
}
@media (min-width: 768px) {
    .flow-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 30px;
        margin-top: 50px;
    }
}

.flow-item {
    background: #fff;
    padding: 25px;
    border-radius: 12px;
    position: relative;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}
@media (min-width: 768px) { .flow-item { padding: 30px; } }

.flow-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--bg-tech);
    font-family: var(--font-heading);
    position: absolute;
    top: 10px;
    right: 15px;
    z-index: 0;
}
@media (min-width: 768px) { .flow-number { font-size: 3rem; right: 20px; } }

.flow-item h4 { margin-bottom: 10px; font-size: 1.1rem; color: var(--text-main); position: relative; z-index: 1; }
.flow-item p { font-size: 0.9rem; color: var(--text-secondary); position: relative; z-index: 1; }

.cta-space { margin-top: 40px; }
@media (min-width: 768px) { .cta-space { margin-top: 60px; } }
.cta-box p { font-size: 1.1rem; margin-bottom: 20px; color: var(--text-main); font-weight: 600; }

/* ========================
   PROJETOS
   ======================== */
#projetos {
    background-color: var(--text-main); 
    color: #fff;
}

.portfolio-filters {
    display: flex;
    justify-content: flex-start; /* Scroll horizontal no mobile */
    overflow-x: auto;
    gap: 10px;
    margin-bottom: 30px;
    padding-bottom: 10px;
    -webkit-overflow-scrolling: touch;
}
@media (min-width: 768px) { .portfolio-filters { justify-content: center; gap: 15px; margin-bottom: 40px; } }

.filter-btn {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 1px;
    white-space: nowrap; /* Impede quebra de linha no botão */
    flex-shrink: 0;
}
.filter-btn:hover, .filter-btn.active {
    background-color: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}
@media (min-width: 768px) {
    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
        gap: 40px;
    }
}

.project-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.project-img { position: relative; height: 220px; overflow: hidden; }
@media (min-width: 768px) { .project-img { height: 240px; } }

.project-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s; }
.project-card:hover .project-img img { transform: scale(1.1); }

.badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #fff;
    color: var(--text-main);
    padding: 4px 10px;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 4px;
}

.project-info { padding: 20px; }
@media (min-width: 768px) { .project-info { padding: 25px; } }

.project-info h3 { font-size: 1.1rem; margin-bottom: 10px; color: #fff; }
.project-info p { font-size: 0.9rem; color: rgba(255,255,255,0.7); margin-bottom: 15px; }
.project-info .btn-link { color: var(--accent-light); } 

/* MODAL */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.9); 
    backdrop-filter: blur(5px);
    align-items: center; /* Centro vertical */
    justify-content: center;
    padding: 15px; /* Espaço nas bordas mobile */
}
.modal-content {
    background: #fff;
    padding: 25px;
    border-radius: 12px;
    width: 100%;
    max-width: 600px;
    position: relative;
    animation: zoomIn 0.3s ease;
    max-height: 90vh; /* Evita que o modal seja maior que a tela */
    overflow-y: auto; /* Scroll interno no modal */
}
@keyframes zoomIn { from {transform: scale(0.9); opacity: 0;} to {transform: scale(1); opacity: 1;} }

.close-modal {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 5px;
}
.close-modal:hover { color: var(--accent); }
.modal-body { margin: 20px 0; color: var(--text-secondary); font-size: 0.95rem; }

/* ========================
   PARCERIA & DEPOIMENTOS
   ======================== */
.split-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}
@media (min-width: 992px) { .split-container { grid-template-columns: 1fr 1fr; gap: 60px; } }

.check-list { list-style: none; margin: 20px 0; }
.check-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 1rem;
    color: var(--text-main);
    font-weight: 500;
}
.check-list i { color: var(--accent); font-size: 1.2rem; margin-top: 3px; }
.highlight-text { font-weight: 600; margin-bottom: 25px; display: block; color: var(--text-secondary); border-left: 4px solid var(--accent); padding-left: 15px; }

.image-block-placeholder {
    background: var(--bg-tech);
    height: 250px; /* Menor no mobile */
    border-radius: 12px;
    border: 2px dashed var(--border-tech);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}
@media (min-width: 768px) { .image-block-placeholder { height: 350px; } }

.image-block-placeholder i { font-size: 3rem; margin-bottom: 10px; color: var(--border-tech); }

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 30px;
}
@media (min-width: 768px) { .testimonials-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; margin-top: 50px; } }

.testimonial-card {
    background: #fff;
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow-tech-sm);
    border: 1px solid var(--border-light);
}
.stars { color: #F59E0B; margin-bottom: 10px; letter-spacing: 2px; }
.testimonial-card p { font-style: italic; color: var(--text-secondary); margin-bottom: 15px; font-size: 0.9rem; }
.author { font-weight: 700; color: var(--text-main); font-size: 0.8rem; text-transform: uppercase; }

/* ========================
   BIO
   ======================== */
.bio-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
    align-items: center;
    background: #fff;
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-tech-lg);
    border: 1px solid var(--border-light);
}
@media (min-width: 992px) { .bio-container { flex-direction: row; gap: 60px; padding: 50px; } }

.bio-img { width: 100%; position: relative; }
@media (min-width: 992px) { .bio-img { flex: 0 0 320px; width: auto; } }

.bio-img img { width: 100%; border-radius: 8px; filter: grayscale(0%); transition: 0.3s; } /* No mobile, sempre colorido */
@media (min-width: 992px) { .bio-img img { filter: grayscale(100%); } .bio-img:hover img { filter: grayscale(0%); } }

.bio-img::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent);
    border-radius: 8px;
    z-index: 0;
}

.bio-text h2 { margin-bottom: 15px; font-size: 1.8rem; }
.bio-text p { margin-bottom: 15px; color: var(--text-secondary); }
.info-tag {
    background: var(--bg-tech);
    color: var(--text-main);
    padding: 6px 12px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 10px 0 20px 0;
    font-weight: 600;
    font-size: 0.85rem;
    border: 1px solid var(--border-tech);
}

.stats-row { display: flex; gap: 30px; margin-top: 10px; border-top: 1px solid var(--border-light); padding-top: 20px; width: 100%; }
.stat-item .stat-num { font-size: 2rem; font-weight: 700; color: var(--accent); line-height: 1; font-family: var(--font-heading); }
.stat-item .stat-label { font-size: 0.7rem; color: var(--text-secondary); text-transform: uppercase; margin-top: 5px; letter-spacing: 1px; font-weight: 600; }

/* ========================
   CONTATO & FOOTER
   ======================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 30px;
    margin-bottom: 30px;
}
@media (min-width: 768px) {
    .contact-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
        margin-top: 50px;
        margin-bottom: 50px;
    }
}

.contact-card {
    background: #fff;
    padding: 30px 20px;
    text-align: center;
    border-radius: 12px;
    box-shadow: var(--shadow-tech-sm);
}
.bg-dark .contact-card { color: var(--text-main); }
.bg-dark .contact-card p { color: var(--text-secondary); }

.highlight-card { border: 2px solid var(--accent); background: #fff; }

.icon-large { font-size: 2rem; color: var(--accent); margin-bottom: 15px; }
.contact-value { font-weight: 700; color: var(--text-main); font-size: 1.1rem; margin-top: 10px; font-family: var(--font-body); word-break: break-all; } /* Quebra emails longos no mobile */

.map-placeholder {
    width: 100%;
    height: 250px;
    background-color: var(--bg-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
}
@media (min-width: 768px) { .map-placeholder { height: 350px; } }

footer {
    background-color: var(--text-main);
    color: rgba(255,255,255,0.6);
    text-align: center;
    padding: 40px 15px;
    font-size: 0.85rem;
}
.footer-logo { 
    color: #fff; 
    font-size: 1.3rem; 
    font-weight: 700; 
    margin-bottom: 10px; 
    font-family: var(--font-heading); 
    letter-spacing: 1px;
}
.footer-link { 
    background: none; 
    border: none; 
    color: var(--accent-light); 
    cursor: pointer; 
    text-transform: uppercase; 
    font-size: 0.75rem; 
    margin: 15px 0; 
    letter-spacing: 1px;
    font-weight: 700;
}

/* ========================
   MOBILE NAVBAR (DRAWER)
   ======================== */
@media (max-width: 768px) {
    .navbar {
        position: fixed;
        left: -100%;
        top: 70px;
        gap: 0;
        flex-direction: column;
        background-color: #fff;
        width: 100%;
        text-align: center;
        transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: var(--shadow-tech-lg);
        padding: 30px 0;
        height: calc(100vh - 70px);
        overflow-y: auto; /* Permite scroll se o menu for muito alto */
    }
    .navbar.active { left: 0; }
    .navbar .nav-menu { flex-direction: column; gap: 20px; width: 100%; }
    .nav-link { font-size: 1.1rem; display: block; padding: 10px; width: 100%; }
    
    .hamburger { display: block; }
    .hamburger.active .bar:nth-child(2) { opacity: 0; }
    .hamburger.active .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.active .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    
    .btn-whatsapp-header { display: none; }
}

/* ========================
   MOBILE FAB
   ======================== */
.fab-whatsapp {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #25D366;
    color: white;
    padding: 12px 20px;
    border-radius: 50px;
    box-shadow: 0 8px 20px rgba(37, 211, 102, 0.4);
    z-index: 900;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    transition: transform 0.3s;
    font-family: var(--font-heading);
    font-size: 0.9rem;
}
.fab-whatsapp:active { transform: scale(0.95); }
.fab-whatsapp i { font-size: 1.3rem; }
@media (min-width: 769px) { .fab-whatsapp { display: none; } }

/* ========================
   ANIMATION CLASSES
   ======================== */
.scroll-animate { opacity: 0; transform: translateY(30px); transition: all 0.8s cubic-bezier(0.5, 0, 0, 1); }
.scroll-animate.visible { opacity: 1; transform: translateY(0); }