:root {
    --bg-main: #f8fafc;
    --bg-surface: #ffffff;
    --bg-alt: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --primary: #0284c7;
    --primary-hover: #0369a1;
    --primary-light: #e0f2fe;
    --accent-uv: #06b6d4;
    --accent-teal: #0d9488;
    --border-color: #e2e8f0;
    --border-focus: #38bdf8;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --container-max: 1200px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.site-header {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-bar {
    background-color: #0c4a6e;
    color: #e0f2fe;
    font-size: 13px;
    padding: 8px 0;
    font-weight: 500;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-mark {
    font-size: 26px;
    color: var(--primary);
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 1.5px;
    color: #0c4a6e;
}

.main-nav {
    display: flex;
    gap: 28px;
    align-items: center;
}

.main-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary);
}

.nav-btn {
    background-color: var(--primary) !important;
    color: #ffffff !important;
    padding: 9px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600 !important;
    transition: background-color 0.2s ease !important;
}

.nav-btn:hover {
    background-color: var(--primary-hover) !important;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 13px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-size: 15px;
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    background-color: var(--bg-alt);
    border-color: var(--text-muted);
}

/* Hero Section */
.hero-section {
    padding: 70px 0 80px 0;
    background: linear-gradient(180deg, #f0f9ff 0%, #ffffff 100%);
    border-bottom: 1px solid var(--border-color);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 5px 14px;
    border-radius: 9999px;
    background-color: var(--primary-light);
    color: #0369a1;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
    border: 1px solid #bae6fd;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 46px;
    line-height: 1.15;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 20px;
}

.hero-title span {
    color: var(--primary);
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 36px;
}

.hero-badges {
    display: flex;
    gap: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-secondary);
}

.hero-img-wrap {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background-color: var(--bg-alt);
    border: 1px solid var(--border-color);
}

.hero-img-wrap img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* Feature Pillars */
.pillars-section {
    padding: 80px 0;
    background-color: var(--bg-surface);
}

.section-header {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 56px auto;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 34px;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 14px;
}

.section-subtitle {
    font-size: 17px;
    color: var(--text-secondary);
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.pillar-card {
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pillar-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: #cbd5e1;
}

.pillar-icon {
    font-size: 32px;
    margin-bottom: 20px;
    display: inline-block;
}

.pillar-card h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #0f172a;
}

.pillar-card p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

/* Products Section */
.products-section {
    padding: 80px 0;
    background-color: var(--bg-alt);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.product-thumb {
    width: 100%;
    height: 250px;
    background-color: #f8fafc;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border-color);
}

.product-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-tag {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary);
    margin-bottom: 8px;
}

.product-title {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #0f172a;
}

.product-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 18px;
    flex: 1;
}

.product-specs-list {
    list-style: none;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
    border-top: 1px solid var(--border-color);
    padding-top: 14px;
}

.product-specs-list li {
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Comparison Table */
.comparison-section {
    padding: 80px 0;
    background-color: var(--bg-surface);
}

.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 15px;
}

.comparison-table th {
    background-color: #f1f5f9;
    padding: 16px 20px;
    font-family: var(--font-heading);
    font-weight: 700;
    color: #0f172a;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

/* Calculator / Interactive Widget */
.calc-section {
    padding: 80px 0;
    background-color: #0c4a6e;
    color: #ffffff;
}

.calc-box {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.calc-title {
    font-family: var(--font-heading);
    font-size: 28px;
    margin-bottom: 12px;
    text-align: center;
}

.calc-desc {
    text-align: center;
    color: #bae6fd;
    font-size: 16px;
    margin-bottom: 32px;
}

.calc-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

.calc-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #e0f2fe;
}

.calc-select, .calc-input {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background-color: rgba(15, 23, 42, 0.6);
    color: #ffffff;
    font-size: 15px;
}

.calc-result-card {
    background-color: rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
}

.calc-stat {
    font-family: var(--font-heading);
    font-size: 38px;
    font-weight: 800;
    color: #38bdf8;
    margin-bottom: 6px;
}

/* Checkout / Pedido */
.checkout-section {
    padding: 60px 0 80px 0;
}

.checkout-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: start;
}

.checkout-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    box-shadow: var(--shadow-sm);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    font-size: 15px;
    color: var(--text-primary);
    background-color: var(--bg-main);
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    background-color: var(--bg-surface);
}

.checkout-summary {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px;
    position: sticky;
    top: 100px;
}

.summary-line {
    display: flex;
    justify-content: space-between;
    margin-bottom: 14px;
    font-size: 15px;
    color: var(--text-secondary);
}

.summary-total {
    display: flex;
    justify-content: space-between;
    border-top: 2px solid var(--border-color);
    padding-top: 18px;
    margin-top: 18px;
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 800;
    color: #0f172a;
}

/* Legal & Information Pages */
.page-hero {
    padding: 50px 0;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.page-hero h1 {
    font-family: var(--font-heading);
    font-size: 36px;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 12px;
}

.page-hero p {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto;
}

.legal-content {
    padding: 60px 0;
    max-width: 820px;
    margin: 0 auto;
}

.legal-content h2 {
    font-family: var(--font-heading);
    font-size: 22px;
    margin: 36px 0 14px 0;
    color: #0f172a;
}

.legal-content p, .legal-content ul {
    margin-bottom: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.legal-content ul {
    padding-left: 24px;
}

.legal-content li {
    margin-bottom: 8px;
}

/* Footer */
.site-footer {
    background-color: #0f172a;
    color: #cbd5e1;
    padding: 60px 0 0 0;
    border-top: 1px solid #1e293b;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 48px;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.6;
    color: #94a3b8;
    margin-bottom: 20px;
}

.footer-heading {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 18px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: #38bdf8;
}

.footer-bottom {
    background-color: #020617;
    padding: 20px 0;
    border-top: 1px solid #1e293b;
    font-size: 13px;
    color: #64748b;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-grid { grid-template-columns: 1fr; }
    .pillars-grid { grid-template-columns: 1fr; }
    .products-grid { grid-template-columns: 1fr; }
    .checkout-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
    .top-bar-content { flex-direction: column; text-align: center; gap: 4px; }
    .header-main { flex-direction: column; gap: 16px; }
    .main-nav { flex-wrap: wrap; justify-content: center; gap: 14px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom-content { flex-direction: column; text-align: center; gap: 8px; }
    .calc-controls { grid-template-columns: 1fr; }
}