/* =============================================
   Variáveis Globais
   ============================================= */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary: #10b981;
    --secondary-dark: #059669;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --white: #ffffff;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --border: #e2e8f0;
    --radius: 0.75rem;
    --transition: all 0.3s ease;
}

/* =============================================
   Reset & Base
   ============================================= */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { background-color: var(--white); color: var(--dark); line-height: 1.7; overflow-x: hidden; font-family: 'Inter', sans-serif; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.text-center { text-align: center; }
.bg-light { background-color: var(--light); }
.bg-primary { background-color: var(--primary); }
.text-white { color: var(--white); }

/* =============================================
   Tipografia
   ============================================= */
h1 { font-size: 3rem; line-height: 1.2; margin-bottom: 1.25rem; font-weight: 800; }
h2 { font-size: 2.25rem; margin-bottom: 0.75rem; font-weight: 800; }
h3 { font-size: 1.25rem; margin-bottom: 0.5rem; font-weight: 600; }
p { color: var(--gray); margin-bottom: 1rem; font-size: 1rem; }
.bg-primary p { color: #e0e7ff; }
.highlight { color: var(--primary); }
.section-title { margin-bottom: 1.5rem; }
.section-title p { max-width: 650px; margin: 0 auto; font-size: 1.1rem; }

/* =============================================
   Botões
   ============================================= */
.btn { display: inline-block; padding: 0.75rem 1.5rem; border-radius: 0.5rem; font-weight: 600; cursor: pointer; transition: var(--transition); border: 2px solid transparent; text-align: center; }
.btn-primary { background-color: var(--primary); color: var(--white); }
.btn-primary:hover { background-color: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-outline { background-color: transparent; color: var(--dark); border-color: var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-dark { background-color: var(--dark); color: var(--white); }
.btn-dark:hover { background-color: #0f172a; transform: translateY(-2px); }
.btn-large { padding: 1rem 2rem; font-size: 1.125rem; }
.btn-block { display: block; width: 100%; }

/* =============================================
   Navbar
   ============================================= */
.navbar { position: fixed; top: 0; left: 0; width: 100%; background-color: rgba(255, 255, 255, 0.97); backdrop-filter: blur(12px); z-index: 1000; border-bottom: 1px solid var(--border); }
.nav-container { display: flex; justify-content: space-between; align-items: center; height: 80px; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--primary); display: flex; align-items: center; gap: 0.5rem; }
.logo i { font-size: 1.75rem; }
.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a { font-weight: 600; color: var(--gray); position: relative; padding: 0.25rem 0; }
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background-color: var(--primary); transition: width 0.3s ease; }
.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active-link { color: var(--primary); }
.nav-links a.active-link::after { width: 100%; }
.hamburger { display: none; font-size: 1.5rem; cursor: pointer; color: var(--dark); padding: 0.5rem; }

/* =============================================
   Hero Section
   ============================================= */
.section { padding: 5rem 0; }
.hero { padding-top: 150px; padding-bottom: 5rem; min-height: 85vh; display: flex; align-items: center; background: linear-gradient(180deg, #f0f4ff 0%, var(--white) 100%); }
.hero-container { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.badge { background-color: var(--primary-light); color: var(--primary-dark); padding: 0.35rem 1rem; border-radius: 999px; font-size: 0.875rem; font-weight: 600; display: inline-block; margin-bottom: 1.5rem; }
.hero-content p { font-size: 1.125rem; }
.hero-buttons { display: flex; gap: 1rem; margin-top: 2rem; flex-wrap: wrap; }
.tech-stack-visual { position: relative; height: 420px; background: linear-gradient(135deg, var(--light) 0%, #e2e8f0 100%); border-radius: var(--radius); display: flex; justify-content: center; align-items: center; box-shadow: var(--shadow-lg); }
.node { position: absolute; background: var(--white); padding: 1rem 1.25rem; border-radius: 0.75rem; box-shadow: var(--shadow); font-weight: 600; display: flex; align-items: center; gap: 0.75rem; transition: transform 0.3s ease; }
.node:hover { transform: scale(1.05); }
.node i { font-size: 1.5rem; }
.node.wpp { color: #25D366; }
.node.bot { top: 20%; left: 10%; color: var(--primary); }
.node.audio { top: 20%; right: 10%; color: #f59e0b; }
.node.human { bottom: 20%; right: 10%; color: var(--dark); }

/* =============================================
   Grid Features (Recursos + Tecnologia)
   ============================================= */
.grid-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2rem; margin-top: 3rem; }
.feature-card { background: var(--white); padding: 2rem; border-radius: var(--radius); box-shadow: var(--shadow); transition: var(--transition); border: 1px solid var(--border); position: relative; overflow: hidden; }
.feature-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--primary), var(--secondary)); transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease; }
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.icon-box { width: 56px; height: 56px; background: linear-gradient(135deg, var(--primary-light), #eff6ff); color: var(--primary); border-radius: 0.75rem; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 1.25rem; transition: var(--transition); }
.feature-card:hover .icon-box { background: var(--primary); color: var(--white); }

/* =============================================
   Benefícios Grid
   ============================================= */
.benefits-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); gap: 2rem; margin-top: 3rem; }
.benefit-item { display: flex; gap: 1.5rem; align-items: flex-start; padding: 2rem; background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); transition: var(--transition); }
.benefit-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.benefit-number { flex-shrink: 0; width: 52px; height: 52px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: var(--white); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.25rem; }
.benefit-content h3 { margin-bottom: 0.5rem; }
.benefit-content strong { color: var(--primary); }

/* =============================================
   Planos / Pricing — Design Premium
   ============================================= */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
    margin-top: 3rem;
    align-items: center;
}

.pricing-card {
    background: var(--white);
    border-radius: 1.25rem;
    padding: 2.25rem 2rem 2rem;
    border: 1px solid var(--border);
    text-align: center;
    transition: all 0.35s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px -12px rgba(0,0,0,0.12);
    border-color: #cbd5e1;
}

/* Card Destaque (central) */
.pricing-featured {
    border: 2px solid var(--primary);
    box-shadow: 0 8px 32px -8px rgba(37, 99, 235, 0.25);
    transform: scale(1.03);
    z-index: 2;
    background: linear-gradient(180deg, #fafbff 0%, var(--white) 100%);
}

.pricing-featured:hover {
    transform: scale(1.03) translateY(-8px);
    box-shadow: 0 28px 56px -12px rgba(37, 99, 235, 0.3);
}

/* Faixa "Mais Popular" */
.pricing-ribbon {
    position: absolute;
    top: 14px;
    right: -6px;
    background: var(--primary);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    padding: 0.35rem 1.25rem 0.35rem 1rem;
    border-radius: 6px 0 0 6px;
    box-shadow: 0 3px 10px rgba(37, 99, 235, 0.3);
}
.pricing-ribbon::after {
    content: '';
    position: absolute;
    top: 100%;
    right: 0;
    width: 6px;
    height: 6px;
    background: var(--primary-dark);
    clip-path: polygon(0 0, 100% 0, 100% 100%);
}

/* Ícone do plano */
.pricing-icon {
    width: 60px;
    height: 60px;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin: 0 auto 1.25rem;
    transition: transform 0.3s ease;
}
.pricing-card:hover .pricing-icon {
    transform: scale(1.1) rotate(-5deg);
}

/* Nome e descrição */
.pricing-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.3rem;
}
.pricing-desc {
    font-size: 0.85rem;
    color: var(--gray-light);
    margin-bottom: 1.25rem;
}

/* Preço */
.pricing-price {
    margin-bottom: 0.2rem;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}
.pricing-currency {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gray);
    align-self: flex-start;
    margin-top: 4px;
}
.pricing-amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--dark);
    line-height: 1;
    letter-spacing: -1px;
}
.pricing-range {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray);
    align-self: flex-end;
    margin-bottom: 2px;
}
.pricing-period {
    font-size: 0.9rem;
    color: var(--gray-light);
    align-self: flex-end;
    margin-bottom: 3px;
    margin-left: 1px;
}
.pricing-setup {
    font-size: 0.78rem;
    color: var(--gray-light);
    margin-bottom: 1.25rem;
}

/* Divisor */
.pricing-divider {
    width: 40px;
    height: 3px;
    background: var(--border);
    border-radius: 2px;
    margin: 0 auto 1.5rem;
}
.pricing-featured .pricing-divider {
    background: var(--primary);
    width: 50px;
}

/* Lista de funcionalidades */
.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 1.25rem;
    flex: 1;
}
.pricing-features li {
    padding: 0.6rem 0;
    font-size: 0.9rem;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 0.65rem;
}
.pricing-features li i {
    color: var(--secondary);
    font-size: 0.95rem;
    flex-shrink: 0;
}

/* Público ideal */
.pricing-ideal {
    font-size: 0.8rem;
    color: var(--gray-light);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    text-align: left;
    line-height: 1.5;
}
.pricing-ideal i {
    color: var(--gray);
    font-size: 0.85rem;
    margin-top: 2px;
    flex-shrink: 0;
}

/* Botão */
.pricing-btn {
    border-radius: 0.75rem;
    padding: 0.85rem 1.5rem;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}
.pricing-featured .btn-primary {
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}
.pricing-featured .btn-primary:hover {
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
}

/* =============================================
   Contato / Formulário
   ============================================= */
.form-container { max-width: 600px; margin: 0 auto; }
.contact-form { margin-top: 2rem; background: var(--white); padding: 2.5rem; border-radius: var(--radius); box-shadow: var(--shadow-lg); border: 1px solid var(--border); }
.form-group { margin-bottom: 1.5rem; }
.form-group input { width: 100%; padding: 1rem 1.25rem; border: 1px solid var(--border); border-radius: 0.5rem; font-size: 1rem; outline: none; transition: var(--transition); background: var(--light); }
.form-group input:focus { border-color: var(--primary); background: var(--white); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); }
.checkbox-group label { display: flex; align-items: flex-start; gap: 0.5rem; color: var(--gray); font-size: 0.875rem; cursor: pointer; }
.checkbox-group input[type="checkbox"] { width: auto; margin-top: 3px; accent-color: var(--primary); }
.alert { padding: 1rem 1.25rem; border-radius: 0.5rem; margin-bottom: 1rem; text-align: left; animation: slideDown 0.3s ease; }
@keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
.alert-success { background-color: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-danger { background-color: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }

/* =============================================
   Cookie Banner
   ============================================= */
.cookie-banner { position: fixed; bottom: 24px; right: 24px; max-width: 400px; background-color: var(--dark); color: var(--white); padding: 1.5rem; border-radius: var(--radius); box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3); z-index: 9999; display: none; animation: fadeInUp 0.4s ease; }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.cookie-container p { font-size: 0.875rem; color: #cbd5e1; margin-bottom: 1rem; }
.cookie-container .btn { font-size: 0.875rem; padding: 0.5rem 1rem; width: 100%; text-align: center; }
.cookie-container a { color: var(--primary-light); text-decoration: underline; }
.cookie-container a:hover { color: var(--white); }

/* =============================================
   Footer
   ============================================= */
.footer { padding: 3rem 0; background-color: var(--dark); color: var(--gray-light); border-top: 1px solid #334155; }
.footer p { margin-bottom: 0; color: var(--gray-light); }
.footer a { color: #94a3b8; transition: var(--transition); }
.footer a:hover { color: var(--white); }
.footer .footer-links { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; }

/* =============================================
   Animações de Scroll
   ============================================= */
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease-out, transform 0.7s ease-out; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.slide-in-right { opacity: 0; transform: translateX(60px); transition: opacity 0.7s ease-out, transform 0.7s ease-out; }
.slide-in-right.visible { opacity: 1; transform: translateX(0); }
.zoom-in { opacity: 0; transform: scale(0.92); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.zoom-in.visible { opacity: 1; transform: scale(1); }

/* =============================================
   Responsivo
   ============================================= */
@media (max-width: 992px) {
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.75rem; }
    .hero-container { grid-template-columns: 1fr; text-align: center; }
    .hero-content { order: 1; }
    .hero-image { order: 2; }
    .hero-buttons { justify-content: center; }
    .tech-stack-visual { height: 320px; }
    .node.bot { top: 15%; left: 5%; }
    .node.audio { top: 15%; right: 5%; }
    .node.human { bottom: 15%; right: 5%; }
    .grid-features { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
    .benefits-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin-left: auto; margin-right: auto; }
    .pricing-featured { transform: none; }
    .pricing-featured:hover { transform: translateY(-8px); }

    /* Mobile Menu */
    .hamburger { display: block; z-index: 1001; }
    .nav-links { position: fixed; top: 0; right: -100%; width: 280px; height: 100vh; background: var(--white); flex-direction: column; padding: 100px 2rem 2rem; gap: 1.5rem; box-shadow: -5px 0 30px rgba(0, 0, 0, 0.15); transition: right 0.35s ease; z-index: 1000; }
    .nav-links.active { right: 0; }
    .nav-links a { font-size: 1.1rem; }
    .nav-links .btn-primary { width: 100%; text-align: center; }
}

@media (max-width: 640px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    .section { padding: 3rem 0; }
    .hero { padding-top: 120px; min-height: auto; }
    .tech-stack-visual { height: 240px; }
    .node { padding: 0.75rem 1rem; font-size: 0.85rem; }
    .node.bot { top: 10%; left: 2%; }
    .node.audio { top: 10%; right: 2%; }
    .node.human { bottom: 10%; right: 2%; }
    .contact-form { padding: 1.5rem; }
    .benefit-item { flex-direction: column; gap: 1rem; }
    .cookie-banner { left: 16px; right: 16px; bottom: 16px; max-width: none; }
    .footer p { font-size: 0.875rem; }
}

/* =============================================
   Navbar Scroll Effect (via JS)
   ============================================= */
.navbar.scrolled { background-color: rgba(255, 255, 255, 0.99); box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08); }