/* =====================================================
   NATUBAGS — Design System Premium 2026
   CSS Moderno, Responsivo, Mobile-First
   ===================================================== */



/* Fonts loaded via HTML <link> tags for non-blocking performance */

/* ── Reset ─────────────────────────────────────────── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ── Skip Link (Acessibilidade) ───────────────────── */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    z-index: 10000;
    padding: 12px 24px;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 16px;
}

/* ── Design Tokens ─────────────────────────────────── */
:root {
    /* Cores Principais */
    --primary: #1b6b3a;
    --primary-dark: #114d28;
    --primary-light: #2a8f50;
    --primary-ultra-light: #e8f5ec;

    /* Cores Secundárias */
    --secondary: #7cb342;
    --secondary-light: #a5d663;
    --accent: #f59e0b;
    --accent-dark: #d97706;

    /* Neutros */
    --dark: #111827;
    --dark-soft: #1f2937;
    --gray-900: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;

    /* WhatsApp */
    --whatsapp: #25d366;
    --whatsapp-dark: #1da851;

    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0,0,0,0.15);

    /* Bordas */
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transições */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Base ──────────────────────────────────────────── */
html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.7;
    color: var(--gray-700);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    content-visibility: auto;
}

/* ── Container ─────────────────────────────────────── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Botões ────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--primary);
    color: var(--white);
    border: 2px solid transparent;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1.4;
    text-align: center;
    white-space: nowrap;
}

.btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.6);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
}

.btn-whatsapp {
    background: var(--whatsapp);
    border-color: var(--whatsapp);
}

.btn-whatsapp:hover {
    background: var(--whatsapp-dark);
    border-color: var(--whatsapp-dark);
}

/* ── Header ────────────────────────────────────────── */
header {
    background: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--gray-200);
}

.top-bar {
    background: var(--primary);
    color: var(--white);
    padding: 8px 0;
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.01em;
}

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

.top-bar a {
    color: var(--white);
    font-weight: 500;
}

.top-bar a:hover {
    opacity: 0.85;
}

.nav-bar {
    padding: 14px 0;
}

.nav-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.02em;
}

.logo span {
    color: var(--secondary);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
}

nav a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--gray-600);
    position: relative;
    padding: 4px 0;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

nav a:hover {
    color: var(--primary);
}

nav a:hover::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-cta .btn {
    padding: 10px 20px;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: 2px solid var(--gray-300);
    font-size: 1.3rem;
    cursor: pointer;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    align-items: center;
    justify-content: center;
    color: var(--gray-700);
    transition: var(--transition-fast);
}

.mobile-menu-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Mobile Nav Menu */
nav ul.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: -24px;
    right: -24px;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    padding: 16px 24px;
    gap: 0;
    z-index: 999;
    border-top: 1px solid var(--gray-200);
}

nav ul.open li {
    border-bottom: 1px solid var(--gray-100);
}

nav ul.open li:last-child {
    border-bottom: none;
}

nav ul.open a {
    display: block;
    padding: 14px 0;
    font-size: 1rem;
}

/* ── Hero ──────────────────────────────────────────── */
.hero {
    background: linear-gradient(145deg, var(--primary-dark) 0%, var(--primary) 40%, var(--primary-light) 100%);
    color: var(--white);
    padding: 80px 0 110px;
    position: relative;
    overflow: hidden;
    contain: layout; /* Isola o layout do hero para evitar que shifts internos afetem a página */
}

.hero::before {
    content: '';
    position: absolute;
    top: -150px; /* Pixel fixo para evitar shift quando o pai muda de altura */
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -50px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.04) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-content h1 em {
    font-style: normal;
    color: var(--secondary-light);
}

.hero-content p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 32px;
    line-height: 1.7;
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    padding: 16px 32px;
    font-size: 1rem;
}

.hero-image {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: heroFloat 5s ease-in-out infinite;
    animation-delay: 1s;
    max-width: 480px;
    width: 100%;
}

/* content-visibility apenas em elementos de lista longos, não em seções (causa CLS) */
.footer-grid {
    contain: layout style;
}

.hero-image img {
    border-radius: var(--radius-lg);
    box-shadow: 0 30px 60px rgba(0,0,0,0.25);
    width: 100%;
    height: auto;
    transition: box-shadow 0.3s ease;
}

/* Animação flutuante suave — deslocamento pequeno para evitar CLS */
@keyframes heroFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-8px);
    }
}

/* ── Stats ─────────────────────────────────────────── */
.stats {
    background: var(--white);
    padding: 0;
    margin-top: 0;
    position: relative;
    z-index: 2;
}

.stats .container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.stat-item {
    text-align: center;
    padding: 32px 20px;
    border-right: 1px solid var(--gray-100);
    transition: var(--transition);
}

.stat-item:last-child {
    border-right: none;
}

.stat-item:hover {
    background: var(--primary-ultra-light);
}

.stat-item h3 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 4px;
    letter-spacing: -0.02em;
}

.stat-item p {
    color: var(--gray-600);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* ── Features ──────────────────────────────────────── */
.features {
    padding: 90px 0 80px;
}

.features .container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 32px 28px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-ultra-light);
    background: var(--white);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    display: block;
}

.feature-card h3 {
    margin-bottom: 8px;
    color: var(--dark);
    font-size: 1.05rem;
    font-weight: 700;
}

.feature-card p {
    color: var(--gray-600);
    font-size: 0.9rem;
}

/* ── Section Header ────────────────────────────────── */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 14px;
    color: var(--dark);
    letter-spacing: -0.02em;
}

.section-header p {
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.05rem;
    line-height: 1.7;
}

/* ── About Preview ─────────────────────────────────── */
.about-preview {
    background: var(--gray-50);
    padding: 90px 0;
}

.about-preview .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-content h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--dark);
    letter-spacing: -0.02em;
}

.about-content p {
    margin-bottom: 18px;
    color: var(--gray-600);
    font-size: 1rem;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 28px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.about-feature:hover {
    border-color: var(--primary);
    background: var(--primary-ultra-light);
}

.about-feature span:first-child {
    font-size: 1.3rem;
}

.about-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
}

/* ── Products Grid ─────────────────────────────────── */
section.products-grid {
    padding: 90px 0;
}

section.products-grid > .container > .section-header {
    margin-bottom: 48px;
}

div.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    padding: 0;
}

.product-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    position: relative; /* Adicionado para suportar o stretched-link */
}

.product-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px) scale(1.02);
    border-color: var(--gray-300);
}

.product-image {
    height: 220px;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-info {
    padding: 22px;
}

.product-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary-ultra-light);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 10px;
    letter-spacing: 0.01em;
}

.product-info h3 {
    margin-bottom: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
}

.product-info p {
    color: var(--gray-600);
    font-size: 0.9rem;
    margin-bottom: 16px;
    line-height: 1.6;
}

.product-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-fast);
}

/* Efeito Stretched Link para tornar o card inteiro clicável */
.product-link::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1;
}

.product-link:hover {
    color: var(--primary-dark);
    gap: 10px;
}

/* ── Comparison Table ──────────────────────────────── */
.comparison {
    padding: 90px 0;
    background: var(--gray-50);
}

.comparison-table {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
    padding: 18px 24px;
    text-align: center;
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.95rem;
}

.comparison-table th {
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
}

.comparison-table th:first-child {
    text-align: left;
}

.comparison-table td:first-child {
    text-align: left;
    font-weight: 600;
    color: var(--dark);
}

.comparison-table tbody tr {
    transition: var(--transition-fast);
}

.comparison-table tbody tr:hover {
    background: var(--gray-50);
}

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

.check {
    color: var(--primary);
    font-size: 1.1rem;
    font-weight: 700;
}

.cross {
    color: #ef4444;
    font-size: 1.1rem;
    font-weight: 700;
}

/* ── Testimonials ──────────────────────────────────── */
.testimonials {
    padding: 90px 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.testimonial-card {
    background: var(--gray-50);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.testimonial-card:hover {
    border-color: var(--primary-ultra-light);
    box-shadow: var(--shadow);
}

.testimonial-stars {
    color: #f59e0b;
    font-size: 1.1rem;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: 20px;
    color: var(--gray-600);
    line-height: 1.7;
    font-size: 0.95rem;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.testimonial-author strong {
    display: block;
    color: var(--dark);
    font-weight: 700;
    font-size: 0.95rem;
}

.testimonial-author span {
    color: var(--gray-500);
    font-size: 0.85rem;
}

/* ── Applications ──────────────────────────────────── */
.applications {
    padding: 90px 0;
    background: var(--gray-50);
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.app-item {
    background: var(--white);
    padding: 28px 20px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

.app-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.app-icon {
    font-size: 2.2rem;
    margin-bottom: 12px;
    display: block;
}

.app-item h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark);
}

/* ── Process ───────────────────────────────────────── */
.process {
    padding: 90px 0;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.process-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 800;
    margin: 0 auto 14px;
    box-shadow: 0 4px 12px rgba(27, 107, 58, 0.3);
}

.process-step h4 {
    margin-bottom: 6px;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--dark);
}

.process-step p {
    color: var(--gray-500);
    font-size: 0.85rem;
}

/* ── FAQ ───────────────────────────────────────────── */
.faq {
    padding: 90px 0;
    background: var(--gray-50);
}

.faq-list {
    max-width: 780px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: var(--transition-fast);
}

.faq-item:hover {
    border-color: var(--gray-300);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--dark);
    user-select: none;
    transition: var(--transition-fast);
    background: none;
    border: none;
    font-family: inherit;
    text-align: left;
    line-height: 1.5;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question::after {
    content: '+';
    font-size: 1.4rem;
    color: var(--primary);
    font-weight: 300;
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item.active .faq-question::after {
    content: '−';
    transform: rotate(0deg);
}

.faq-item.active .faq-question {
    color: var(--primary);
}

.faq-answer {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.active .faq-answer {
    padding: 0 24px 20px;
    max-height: 500px;
}

.faq-answer p {
    color: var(--gray-600);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ── Contact Section ───────────────────────────────── */
.contact-section {
    padding: 90px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-info h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--dark);
    letter-spacing: -0.02em;
}

.contact-info > p {
    color: var(--gray-600);
    margin-bottom: 32px;
    font-size: 1.05rem;
    line-height: 1.7;
}

.contact-details {
    display: grid;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--gray-50);
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    transition: var(--transition-fast);
}

.contact-item:hover {
    border-color: var(--primary);
    background: var(--primary-ultra-light);
}

.contact-item span:first-child {
    font-size: 1.4rem;
}

.contact-item h4 {
    margin-bottom: 2px;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--dark);
}

.contact-item p {
    margin: 0;
    font-size: 0.88rem;
    color: var(--gray-600);
}

.contact-form {
    background: var(--gray-50);
    padding: 36px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
    background: var(--white);
    color: var(--dark);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(27, 107, 58, 0.1);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

/* ── Footer ────────────────────────────────────────── */
footer {
    background: var(--dark);
    color: rgba(255,255,255,0.85);
    padding: 64px 0 28px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    opacity: 0.7;
    margin-top: 14px;
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-brand .logo {
    color: var(--white);
}

.footer-col h4 {
    margin-bottom: 18px;
    color: var(--secondary);
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.footer-col a {
    opacity: 0.7;
    transition: var(--transition-fast);
}

.footer-col a:hover {
    opacity: 1;
    color: var(--secondary);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 24px;
    text-align: center;
    opacity: 0.5;
    font-size: 0.85rem;
}

/* ── Page Header ───────────────────────────────────── */
.page-header {
    background: linear-gradient(145deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    color: var(--white);
    padding: 56px 0;
}

.page-header h1 {
    font-size: 2.4rem;
    font-weight: 800;
    margin-top: 8px;
    letter-spacing: -0.02em;
}

.breadcrumb {
    display: flex;
    gap: 8px;
    font-size: 0.88rem;
    opacity: 0.8;
    font-weight: 400;
}

.breadcrumb a:hover {
    text-decoration: underline;
    opacity: 1;
}

/* ── Product Detail ────────────────────────────────── */
.product-detail {
    padding: 60px 0;
}

.product-detail .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.product-gallery {
    display: grid;
    gap: 12px;
}

.product-main-image {
    height: 400px;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.product-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.product-thumbnails div {
    height: 80px;
    background: var(--gray-100);
    border-radius: var(--radius);
    cursor: pointer;
    overflow: hidden;
    border: 2px solid transparent;
    transition: var(--transition-fast);
}

.product-thumbnails div.active,
.product-thumbnails div:hover {
    border-color: var(--primary);
}

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

.product-detail-info h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--dark);
}

.product-detail-info > p {
    color: var(--gray-600);
    font-size: 1.05rem;
    margin-bottom: 24px;
    line-height: 1.7;
}

.product-specs {
    background: var(--gray-50);
    padding: 24px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    border: 1px solid var(--gray-200);
}

.product-specs ul {
    list-style: none;
    display: grid;
    gap: 10px;
}

.product-specs li {
    display: flex;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--gray-700);
}

.product-specs li::before {
    content: '✓';
    color: var(--primary);
    font-weight: 700;
}

.product-options {
    margin-bottom: 24px;
}

.product-options label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
}

.product-options select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 20px;
}

.product-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* ── Content Section ───────────────────────────────── */
.content-section {
    padding: 60px 0;
}

.content-section h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--dark);
}

.content-section p {
    margin-bottom: 18px;
    color: var(--gray-600);
    line-height: 1.8;
}

.content-section ul {
    margin-bottom: 18px;
    padding-left: 20px;
}

.content-section li {
    margin-bottom: 8px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ── Info Cards ────────────────────────────────────── */
.info-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 40px 0;
}

.info-card {
    background: var(--gray-50);
    padding: 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.info-card h3 {
    margin-bottom: 12px;
    color: var(--primary);
    font-weight: 700;
}

/* ── Related Products ──────────────────────────────── */
.related-products {
    padding: 60px 0;
    background: var(--gray-50);
}

/* ── Blog Grid ─────────────────────────────────────── */
.blog-grid {
    padding: 60px 0;
}

section.blog-grid > .container > .blog-grid {
    padding: 0;
}

div.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    padding: 0;
}

.blog-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

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

.blog-image {
    height: 200px;
    background: var(--gray-100);
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.blog-card:hover .blog-image img {
    transform: scale(1.05);
}

.blog-content {
    padding: 22px;
}

.blog-category {
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.blog-content h3 {
    margin: 10px 0;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.4;
}

.blog-content p {
    color: var(--gray-600);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ── WhatsApp Float (global) ───────────────────────── */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
}

.whatsapp-float a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--whatsapp);
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    font-size: 1.8rem;
    color: var(--white);
    transition: var(--transition);
}

.whatsapp-float a:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.5);
}

/* =====================================================
   RESPONSIVE — 1200px
   ===================================================== */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
}

/* =====================================================
   RESPONSIVE — 992px (Tablet)
   ===================================================== */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        max-width: 280px;
        margin: 0 auto;
        animation: heroFloat 5s ease-in-out infinite;
        animation-delay: 0.5s;
    }

    .hero-image img {
        width: 100%;
        height: auto;
        box-shadow: 0 20px 40px rgba(0,0,0,0.18);
    }

    .about-preview .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        order: -1;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .product-detail .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .stats .container {
        grid-template-columns: repeat(4, 1fr);
    }

    .features .container {
        grid-template-columns: repeat(2, 1fr);
    }

    div.products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .apps-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-steps {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .info-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    div.blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Nav mobile */
    nav ul {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .nav-cta .btn {
        padding: 8px 16px;
        font-size: 0.8rem;
    }
}

/* =====================================================
   RESPONSIVE — 768px (Mobile grande)
   ===================================================== */
@media (max-width: 768px) {
    body {
        overflow-x: hidden;
    }

    .container {
        padding: 0 16px;
    }

    /* Top bar */
    .top-bar {
        font-size: 0.78rem;
        padding: 6px 0;
        min-height: 44px; /* Garante altura estável se o texto quebrar */
    }

    .top-bar .container {
        flex-wrap: wrap;
        gap: 4px;
        justify-content: center;
        text-align: center;
    }

    /* Nav */
    .nav-bar {
        padding: 10px 0;
    }

    .logo {
        font-size: 1.4rem;
    }

    .nav-cta .btn-whatsapp {
        display: none;
    }

    /* Hero */
    .hero {
        padding: 50px 0 60px;
    }

    .hero-content h1 {
        font-size: 1.8rem;
    }

    .hero-content p {
        font-size: 0.95rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }

    .hero-buttons .btn {
        width: 100%;
        padding: 14px 24px;
    }

    /* Stats */
    .stats {
        margin-top: 0; /* Removido margin negativa que pode causar shifts imprevistos no mobile */
    }

    .stats .container {
        grid-template-columns: repeat(2, 1fr);
        border-radius: var(--radius);
    }

    .stat-item {
        padding: 22px 16px;
    }

    .stat-item h3 {
        font-size: 1.6rem;
    }

    .stat-item:nth-child(2) {
        border-right: none;
    }

    .stat-item:nth-child(1),
    .stat-item:nth-child(2) {
        border-bottom: 1px solid var(--gray-100);
    }

    /* Features */
    .features {
        padding: 70px 0 60px;
    }

    .features .container {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-card {
        display: flex;
        align-items: center;
        gap: 16px;
        text-align: left;
        padding: 20px 22px;
    }

    .feature-icon {
        font-size: 2rem;
        margin-bottom: 0;
        flex-shrink: 0;
    }

    /* Section header */
    .section-header h2 {
        font-size: 1.6rem;
    }

    .section-header p {
        font-size: 0.95rem;
    }

    /* About */
    .about-preview {
        padding: 60px 0;
    }

    .about-content h2 {
        font-size: 1.8rem;
    }

    .about-features {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    /* Products */
    section.products-grid {
        padding: 60px 0;
    }

    div.products-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* Comparison */
    .comparison {
        padding: 60px 0;
    }

    .comparison-table {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .comparison-table table {
        min-width: 500px;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 14px 16px;
        font-size: 0.88rem;
    }

    /* Testimonials */
    .testimonials {
        padding: 60px 0;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .testimonial-card {
        padding: 24px;
    }

    /* Applications */
    .applications {
        padding: 60px 0;
    }

    .apps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .app-item {
        padding: 22px 14px;
    }

    .app-icon {
        font-size: 1.8rem;
    }

    .app-item h4 {
        font-size: 0.82rem;
    }

    /* Process */
    .process {
        padding: 60px 0;
    }

    .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    /* FAQ */
    .faq {
        padding: 60px 0;
    }

    .faq-question {
        font-size: 0.88rem;
        padding: 16px 18px;
    }

    .faq-answer {
        padding: 0 18px;
    }

    .faq-item.active .faq-answer {
        padding: 0 18px 16px;
    }

    /* Contact */
    .contact-section {
        padding: 60px 0;
    }

    .contact-info h2 {
        font-size: 1.8rem;
    }

    .contact-form {
        padding: 24px 20px;
    }

    /* Footer */
    footer {
        padding: 48px 0 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .footer-brand {
        text-align: center;
    }

    /* Page header */
    .page-header {
        padding: 40px 0;
    }

    .page-header h1 {
        font-size: 1.8rem;
    }

    /* Blog */
    div.blog-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* Info cards */
    .info-cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    /* Product detail */
    .product-detail-info h1 {
        font-size: 1.6rem;
    }

    .product-actions {
        flex-direction: column;
    }

    .product-actions .btn {
        width: 100%;
    }
}

/* =====================================================
   RESPONSIVE — 480px (Mobile pequeno)
   ===================================================== */
@media (max-width: 480px) {
    .hero {
        padding: 40px 0 50px;
    }

    .hero-content h1 {
        font-size: 1.5rem;
    }

    .hero-content p {
        font-size: 0.9rem;
    }

    .stats .container {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-item h3 {
        font-size: 1.4rem;
    }

    .stat-item p {
        font-size: 0.8rem;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

    .apps-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .app-item {
        padding: 18px 10px;
    }

    .section-header h2 {
        font-size: 1.4rem;
    }

    .about-content h2 {
        font-size: 1.5rem;
    }

    .contact-info h2 {
        font-size: 1.5rem;
    }

    .btn {
        padding: 13px 20px;
        font-size: 0.9rem;
        min-height: 48px;
    }
}

/* ── Animações de Scroll (Intersection Observer) ── */
@media (prefers-reduced-motion: no-preference) {
    /* Estado inicial: invisível e deslocado - exclui stat-item (above-the-fold) */
    .feature-card,
    .product-card,
    .testimonial-card,
    .app-item,
    .process-step,
    .faq-item,
    .about-feature,
    .contact-item,
    .info-card {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                    transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    }

    /* Estado animado: visível */
    .animate-in {
        opacity: 1 !important;
        transform: translateY(0) !important;
    }

    /* Stagger delay reduzido (máx 0.15s para não aumentar TBT) */
    .product-card:nth-child(1) { transition-delay: 0s; }
    .product-card:nth-child(2) { transition-delay: 0.05s; }
    .product-card:nth-child(3) { transition-delay: 0.1s; }
    .product-card:nth-child(4) { transition-delay: 0.15s; }
    .product-card:nth-child(5) { transition-delay: 0s; }
    .product-card:nth-child(6) { transition-delay: 0.05s; }

    .feature-card:nth-child(1) { transition-delay: 0s; }
    .feature-card:nth-child(2) { transition-delay: 0.05s; }
    .feature-card:nth-child(3) { transition-delay: 0.1s; }
    .feature-card:nth-child(4) { transition-delay: 0.15s; }

    .process-step:nth-child(1) { transition-delay: 0s; }
    .process-step:nth-child(2) { transition-delay: 0.05s; }
    .process-step:nth-child(3) { transition-delay: 0.1s; }
    .process-step:nth-child(4) { transition-delay: 0.15s; }

    /* Sem scale nos product cards (evita CLS) */
    .product-card {
        transform: translateY(20px);
    }
    .product-card.animate-in {
        transform: translateY(0) !important;
    }

    /* Seções: fade simples */
    .section-header,
    .about-image,
    .comparison-table,
    .contact-info,
    .contact-form {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
                    transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
    }

    /* Hero e conteúdo inicial visíveis por padrão para melhor LCP/SI */
    .hero-content,
    .about-content {
        opacity: 1;
        transform: none;
    }

    .section-visible {
        opacity: 1 !important;
        transform: translateY(0) !important;
    }

    /* About image: slide from right */
    .about-image {
        transform: translateX(60px);
    }
    .about-image.section-visible {
        transform: translateX(0) !important;
    }

    /* About content: slide from left */
    .about-content {
        transform: translateX(-60px);
    }
    .about-content.section-visible {
        transform: translateX(0) !important;
    }

    /* Hover micro-animations aprimoradas */
    .product-card {
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                    box-shadow 0.3s ease;
    }
    .product-card:hover {
        transform: translateY(-8px) scale(1.02) !important;
        box-shadow: 0 20px 40px rgba(0,0,0,0.12);
    }

    .feature-card {
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                    box-shadow 0.3s ease;
    }
    .feature-card:hover {
        transform: translateY(-6px) !important;
        box-shadow: 0 16px 32px rgba(0,0,0,0.1);
    }

    .info-card {
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                    box-shadow 0.3s ease;
    }
    .info-card:hover {
        transform: translateY(-6px) !important;
        box-shadow: 0 16px 32px rgba(0,0,0,0.1);
    }

    /* Stat numbers: counter-style pop */
    .stat-item {
        transform: translateY(30px) scale(0.9);
    }
    .stat-item.animate-in {
        transform: translateY(0) scale(1) !important;
    }

    /* Testimonial cards: slide alternate */
    .testimonial-card:nth-child(odd) {
        transform: translateX(-30px);
    }
    .testimonial-card:nth-child(even) {
        transform: translateX(30px);
    }
    .testimonial-card.animate-in {
        transform: translateX(0) !important;
    }
}

/* Garantir que sem JS os cards ainda apareçam */
@media (prefers-reduced-motion: reduce) {
    .feature-card, .product-card, .testimonial-card,
    .app-item, .process-step, .faq-item, .stat-item,
    .about-feature, .contact-item, .info-card,
    .section-header, .hero-content, .about-content,
    .about-image, .comparison-table {
        opacity: 1;
        transform: none;
    }
}

/* =====================================================
   OTIMIZAÇÕES MÓBILE — Performance & Core Web Vitals
   ===================================================== */
@media (max-width: 768px) {
    /* Garante que a hero-image seja visível mas ajustada no mobile */
    .hero-image {
        display: flex !important;
        max-width: 100%;
        margin: 20px auto 0;
        animation: none !important;
        will-change: auto !important;
    }

    .hero-image img {
        box-shadow: var(--shadow-lg);
    }

    /* Desabilita will-change em todos os elementos mobile */
    * {
        will-change: auto;
    }

    /* Desabilita content-visibility em mobile para evitar CLS */
    section {
        content-visibility: visible;
        contain-intrinsic-size: unset;
    }

    /* Garante que cards apareçam sem animação em mobile */
    .feature-card,
    .product-card,
    .testimonial-card,
    .app-item,
    .process-step,
    .faq-item,
    .stat-item,
    .about-feature,
    .contact-item,
    .info-card {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }

    .section-header,
    .about-image,
    .comparison-table,
    .contact-info,
    .contact-form {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }

    /* Hover sem transform em mobile (evita CLS em touch) */
    .product-card:hover,
    .feature-card:hover,
    .app-item:hover,
    .stat-item:hover {
        transform: none !important;
    }
}