* { box-sizing: border-box; }
        
        body { 
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif; 
            margin: 0; 
            padding: 0; 
            background-color: var(--bg-body); 
            color: var(--text-main); 
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        
        a { text-decoration: none; color: inherit; }
        
        /* Layout */
        .container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
        
        /* Header */
        header { 
            background: var(--bg-card); 
            border-bottom: 1px solid var(--border);
            position: sticky; top: 0; z-index: 100;
        }
        .header-content {
            display: flex; justify-content: space-between; align-items: center; height: 70px;
        }
        .logo { font-size: 1.25rem; font-weight: 700; color: var(--text-main); letter-spacing: -0.5px; }
        .logo span { color: var(--primary); }
        .header-nav { display: flex; gap: 1.5rem; align-items: center; }
        .nav-link { font-size: 0.95rem; font-weight: 500; color: var(--text-muted); transition: color 0.2s; }
        .nav-link:hover { color: var(--text-main); }
        
        /* Buttons */
        .btn { 
            display: inline-flex; justify-content: center; align-items: center;
            background-color: var(--primary); color: #fff; 
            font-weight: 600; font-size: 1rem; 
            padding: 0.75rem 1.5rem; border-radius: 6px; 
            transition: background-color 0.2s, transform 0.1s; 
            border: none; cursor: pointer;
        }
        .btn:hover { background-color: var(--primary-hover); }
        .btn:active { transform: translateY(1px); }
        .btn-outline { 
            background-color: transparent; color: var(--text-main); 
            border: 1px solid var(--border); 
        }
        .btn-outline:hover { background-color: #f1f5f9; }
        
        /* Hero */
        .hero { padding: 4rem 0 3rem; text-align: center; }
        .hero h1 { 
            font-size: clamp(2rem, 5vw, 3.5rem); 
            font-weight: 800; line-height: 1.15; 
            color: #0f172a; margin: 0 auto 1.5rem; 
            letter-spacing: -1px; max-width: 800px;
        }
        .hero p { 
            font-size: 1.15rem; color: var(--text-muted); 
            max-width: 600px; margin: 0 auto 2.5rem; 
        }
        
        /* Mockup */
        .mockup-container {
            margin: 2rem auto 4rem; max-width: 800px;
            background: #fff; border-radius: 12px;
            box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
            border: 1px solid var(--border); overflow: hidden;
            display: flex; flex-direction: column;
        }
        .mockup-header { background: #f8fafc; padding: 12px 1rem; border-bottom: 1px solid var(--border); display:flex; gap: 8px; }
        .mockup-dot { width: 10px; height: 10px; border-radius: 50%; background: #cbd5e1; }
        .mockup-body { padding: 2rem; display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
        .mockup-card { border: 1px solid var(--border); border-radius: 8px; padding: 1.25rem; display:flex; flex-direction:column; gap:0.5rem; }
        .mockup-card-time { font-weight: bold; color: #0f172a; }
        .mockup-card-title { font-size: 0.9rem; color: var(--text-muted); }
        
        /* Section */
        .section { padding: 5rem 0; }
        .section-header { text-align: center; margin-bottom: 3.5rem; }
        .section-title { font-size: 2rem; font-weight: 700; color: #0f172a; margin-bottom: 1rem; letter-spacing: -0.5px; }
        .section-desc { font-size: 1.1rem; color: var(--text-muted); max-width: 600px; margin: 0 auto; }
        
        /* How it works */
        .steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2.5rem; }
        .step { text-align: left; }
        .step-number { 
            display: inline-flex; align-items: center; justify-content: center;
            width: 32px; height: 32px; border-radius: 50%;
            background: #e0f2fe; color: var(--primary); font-weight: 700;
            margin-bottom: 1rem;
        }
        .step h3 { font-size: 1.25rem; color: #0f172a; margin: 0 0 0.5rem; }
        .step p { color: var(--text-muted); margin: 0; font-size: 0.95rem; }
        
        /* Pricing */
        .pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
        .plan-card {
            background: var(--bg-card); border: 1px solid var(--border);
            border-radius: 12px; padding: 2.5rem 2rem;
            display: flex; flex-direction: column;
            box-shadow: 0 1px 3px rgba(0,0,0,0.02);
            position: relative;
        }
        .plan-name { font-size: 1.25rem; font-weight: 600; color: #0f172a; margin: 0 0 0.5rem; }
        .plan-price { font-size: 2.5rem; font-weight: 700; color: #0f172a; margin: 0 0 1.5rem; letter-spacing: -1px; }
        .plan-price span { font-size: 1rem; font-weight: 400; color: var(--text-muted); }
        .plan-features { list-style: none; padding: 0; margin: 0 0 2rem; flex-grow: 1; }
        .plan-features li { 
            display: flex; align-items: flex-start; gap: 0.75rem; 
            margin-bottom: 0.75rem; font-size: 0.95rem; color: var(--text-muted);
        }
        .plan-features li::before { content: "✓"; color: var(--success); font-weight: bold; }
        .popular-badge {
            position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
            background: var(--primary); color: white; font-size: 0.75rem; font-weight: 700;
            padding: 4px 12px; border-radius: 999px; letter-spacing: 0.5px;
        }
        .plan-card.popular { border: 2px solid var(--primary); }
        
        /* Add-ons */
        .addons { background: #f8fafc; border: 1px solid var(--border); border-radius: 12px; padding: 2.5rem; margin-top: 3rem; }
        .addons-title { font-size: 1.25rem; font-weight: 600; color: #0f172a; margin: 0 0 0.5rem; }
        .addons-desc { color: var(--text-muted); margin: 0 0 1.5rem; font-size: 0.95rem; }
        .addons-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; }
        .addon { background: #fff; border: 1px solid var(--border); padding: 1.25rem; border-radius: 8px; }
        .addon-limit { font-weight: 600; color: #0f172a; font-size: 0.95rem; margin-bottom: 0.25rem; }
        .addon-price { color: var(--text-muted); font-size: 0.9rem; }
        
        /* FAQ */
        .faq { max-width: 800px; margin: 0 auto; }
        .faq-item { border-bottom: 1px solid var(--border); padding: 1.5rem 0; }
        .faq-item h4 { font-size: 1.1rem; color: #0f172a; margin: 0 0 0.5rem; }
        .faq-item p { color: var(--text-muted); margin: 0; font-size: 0.95rem; }
        
        /* Footer */
        footer { border-top: 1px solid var(--border); padding: 3rem 0; margin-top: 2rem; background: #fff; }
        .footer-content { display: flex; flex-direction: column; align-items: center; gap: 1rem; text-align:center; }
        .footer-links { display: flex; gap: 1.5rem; flex-wrap: wrap; justify-content:center; }
        .footer-links a { color: var(--text-muted); font-size: 0.9rem; }
        .footer-links a:hover { color: #0f172a; }
        .copyright { color: #94a3b8; font-size: 0.85rem; margin-top: 1rem; }
        
        /* Mobile adjustments */
        @media (max-width: 768px) {
            /* V1.1 Etapa 3: the inline style="display:flex" kept the full menu visible and caused
               horizontal scroll on phones. Keep only "Entrar", "Criar Conta" and the theme button. */
            .header-nav { gap: 0.6rem; }
            .header-nav .nav-link[href^="#"] { display: none; }
            .header-nav .theme-dropdown { margin-left: 0; }
            .hero { padding: 3rem 0 2rem; }
            .section { padding: 3rem 0; }
            .pricing-grid { grid-template-columns: 1fr; }
            .addons { padding: 1.5rem; }
        }
    
/* Theme Selector CSS */
.theme-dropdown { position: relative; display: inline-block; margin-left: 1rem; }
.theme-btn { 
    background: var(--bg-card); color: var(--text-main); border: 1px solid var(--border); 
    padding: 6px 12px; border-radius: 6px; cursor: pointer; font-size: 0.9rem;
    display: flex; align-items: center; gap: 6px;
}
.theme-btn:hover { background: var(--bg-body); }
.theme-menu {
    display: none; position: absolute; top: 110%; right: 0; background: var(--bg-card);
    border: 1px solid var(--border); border-radius: 6px; box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    min-width: 140px; z-index: 1000; overflow: hidden;
}
.theme-menu.show { display: block; }
.theme-menu button {
    width: 100%; text-align: left; background: none; border: none; padding: 10px 12px;
    color: var(--text-main); font-size: 0.9rem; cursor: pointer; display: flex; align-items: center; gap: 8px;
}
.theme-menu button:hover { background: var(--bg-body); }
@media(max-width: 768px) {
    .theme-btn-text { display: none; }
    .theme-btn { padding: 6px 8px; }
}