/* Reset e configurações básicas */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Variáveis CSS */
:root {
    --primary-blue: #1a237e;
    --secondary-blue: #283593;
    --dark-blue: #0d1b69;
    --light-blue: #3f51b5;
    --accent-blue: #5c6bc0;
    --gray-color: #6c757d;
    --background-light: #f8fafc;
    --text-dark: #1e293b;
    --text-gray: #64748b;
    --text-light: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
    --border-radius: 12px;
}

/* Base */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--background-light);
}

.container {
    max-width: 1400px; /* Aumentado para comportar o novo layout */
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: var(--primary-blue);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}
.navbar { padding: 1rem 0; }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.nav-logo h2 { color: var(--text-light); font-size: 1.5rem; font-weight: 700; }

/* Botões */
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.75rem 1.5rem; border: 2px solid transparent; border-radius: var(--border-radius); font-size: 1rem; font-weight: 600; text-decoration: none; cursor: pointer; transition: var(--transition); text-align: center; justify-content: center;
}
.btn-primary { background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%); color: var(--text-light); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-secondary { background-color: var(--gray-color); color: var(--text-light); border-color: var(--gray-color); }
.btn-secondary:hover { background-color: #5a6268; border-color: #545b62; transform: translateY(-2px); }
.btn-outline { background-color: transparent; color: var(--primary-blue); border-color: var(--primary-blue); }
.btn-outline:hover { background-color: var(--primary-blue); color: var(--text-light); }
.btn-outline-light { color: var(--text-light); border-color: var(--text-light); }
.btn-outline-light:hover { background: var(--text-light); color: var(--primary-blue); }
.btn-large { padding: 1rem 2rem; font-size: 1.1rem; }
.btn-whatsapp { background: #25d366; color: var(--text-light); }
.btn-whatsapp:hover { background: #128c7e; transform: translateY(-2px); }

/* Hero Section */
.hero-calc { background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%); color: var(--text-light); padding: 4rem 0; text-align: center; }
.hero-title { font-size: 3rem; font-weight: 700; margin-bottom: 1rem; line-height: 1.2; }
.hero-subtitle { font-size: 1.2rem; opacity: 0.9; max-width: 600px; margin: 0 auto; }

/* Calculator Section */
.calculator-section { padding: 4rem 0; }
/* NOVO LAYOUT EM GRID */
.calculator-layout-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: flex-start;
}
@media (min-width: 992px) {
    .calculator-layout-grid {
        grid-template-columns: 1fr 480px; /* Coluna do formulário flexível, coluna do resultado fixa */
    }
}

.calculator-form {
    background: var(--text-light); border-radius: 20px; padding: 2.5rem; box-shadow: var(--shadow-lg);
}
.form-header { text-align: center; margin-bottom: 2rem; }
.form-header h2 { font-size: 2rem; color: var(--primary-blue); margin-bottom: 0.5rem; }
.form-header p { color: var(--text-gray); font-size: 1.1rem; }

/* Form Sections */
.form-section { margin-bottom: 2.5rem; }
.section-title { display: flex; align-items: center; gap: 0.5rem; font-size: 1.3rem; color: var(--primary-blue); margin-bottom: 1.5rem; font-weight: 600; }
.section-title i { color: var(--light-blue); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.form-group { display: flex; flex-direction: column; }
.form-label { font-weight: 600; color: var(--text-dark); margin-bottom: 0.5rem; font-size: 1rem; }
.required { color: var(--error); }
.form-input { padding: 1rem; border: 2px solid #e2e8f0; border-radius: var(--border-radius); font-size: 1rem; transition: var(--transition); background: #f8fafc; }
.form-input:focus { outline: none; border-color: var(--light-blue); background: var(--text-light); box-shadow: 0 0 0 3px rgba(63, 81, 181, 0.1); }
.form-help { color: var(--text-gray); font-size: 0.875rem; margin-top: 0.25rem; }

/* Tipo Grid & Opções */
.tipo-grid, .trilho-options, .instalacao-options { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; }
.tipo-card, .trilho-card, .instalacao-card { position: relative; }
.tipo-card input, .trilho-card input, .instalacao-card input { position: absolute; opacity: 0; pointer-events: none; }
.tipo-label, .trilho-label, .instalacao-label { display: flex; align-items: center; gap: 1rem; padding: 1.5rem; border: 2px solid #e2e8f0; border-radius: var(--border-radius); cursor: pointer; transition: var(--transition); background: #f8fafc; min-height: 100px; }
.tipo-label:hover, .trilho-label:hover, .instalacao-label:hover { border-color: var(--light-blue); background: var(--text-light); transform: translateY(-2px); box-shadow: var(--shadow); }
.tipo-card input:checked + .tipo-label, .trilho-card input:checked + .trilho-label, .instalacao-card input:checked + .instalacao-label { border-color: var(--primary-blue); background: var(--text-light); box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1); }
.tipo-icon, .trilho-icon, .instalacao-icon { width: 50px; height: 50px; background: var(--light-blue); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--text-light); font-size: 1.2rem; flex-shrink: 0; }
.tipo-info h4, .trilho-info h4, .instalacao-info h4 { font-size: 1.1rem; color: var(--text-dark); margin-bottom: 0.25rem; font-weight: 600; }
.tipo-info p, .trilho-info p, .instalacao-info p { color: var(--text-gray); font-size: 0.9rem; }
.trilho-price, .instalacao-price { color: var(--primary-blue); font-weight: 700; font-size: 1rem; margin-top: 0.5rem; display: block; }
.form-actions { text-align: center; margin-top: 2.5rem; }

/* NOVO CONTAINER DE RESULTADO */
.calculator-result-wrapper {
    background: var(--text-light);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--primary-blue);
    position: sticky; /* Fica fixo ao rolar a página */
    top: 100px;
    animation: fadeInResult 0.6s ease forwards;
}
@keyframes fadeInResult {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.result-header {
    margin-bottom: 1.5rem; padding-bottom: 1rem; border-bottom: 2px solid #e2e8f0;
}
.result-header h2 { color: var(--primary-blue); font-size: 1.8rem; }

.result-details .detail-item { display: flex; justify-content: space-between; align-items: center; padding: 0.8rem 0; border-bottom: 1px solid #e2e8f0; }
.result-details .detail-item:last-child { border-bottom: none; }
.result-details .detail-item span:first-child { font-weight: 500; color: var(--text-dark); padding-right: 1rem; }
.result-details .detail-item span:last-child { font-weight: 600; color: var(--primary-blue); text-align: right; }
.result-details .detail-item.discount span:last-child { color: var(--success); }

.result-total { background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%); color: var(--text-light); padding: 1.5rem; border-radius: var(--border-radius); text-align: center; margin: 1.5rem 0; }
.result-total .total-label { font-size: 1.1rem; margin-bottom: 0.5rem; opacity: 0.9; }
.result-total .total-value { font-size: 2.5rem; font-weight: 700; }
.result-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* Contact Form inside result */
.contact-form { animation: fadeInResult 0.5s; }
.contact-form .form-group { margin-bottom: 1rem; }
.contact-form input { width: 100%; }

/* WhatsApp Float */
.whatsapp-float { position: fixed; bottom: 20px; right: 20px; z-index: 999; animation: pulse 2s infinite; }
.whatsapp-link { display: flex; align-items: center; background: #25d366; color: white; padding: 15px 20px; border-radius: 50px; text-decoration: none; box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3); transition: var(--transition); font-weight: 600; gap: 10px; }
.whatsapp-link:hover { background: #128c7e; transform: translateY(-3px); box-shadow: 0 6px 25px rgba(37, 211, 102, 0.4); color: white; }
.whatsapp-link i { font-size: 1.5rem; }
.whatsapp-text { font-size: 0.9rem; white-space: nowrap; }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.05); } }

/* Responsive */
@media (max-width: 991px) {
    .calculator-result-wrapper {
        position: static; /* Desativa o 'sticky' em telas menores */
    }
}
@media (max-width: 768px) {
    .hero-title { font-size: 2rem; }
    .hero-subtitle { font-size: 1rem; }
    .calculator-form { padding: 1.5rem; }
    .form-row, .tipo-grid, .trilho-options, .instalacao-options { grid-template-columns: 1fr; gap: 1rem; }
    .tipo-label { padding: 1rem; }
    .result-actions { flex-direction: column; }
    .whatsapp-text { display: none; }
    .whatsapp-link { width: 60px; height: 60px; border-radius: 50%; justify-content: center; padding: 0; }
    .nav-container { flex-direction: column; gap: 1rem; }
}