/* 
   Pureza Duo CSS - Modern Awwards Style Landing Page
   Cores e estilos premium para higienização e impermeabilização de estofados
*/

/* ----------------------------------
   1. Variáveis e Reset
------------------------------------- */
:root {
    /* Cores Principais */
    --primary: #0C416C;
    --primary-light: #C2CDDA;
    
    /* Cores de Apoio */
    --bg-light: #f7f9fa;
    --text-dark: #2e2e2e;
    --slate-blue: #8ea4b6;
    --ice-blue: #a9c6d9;
    --navy-accent: #0b3f5e;
    --white: #ffffff;
    --beige: #e1d9cc;
    --text-muted: #434d59;
    
    /* Cores de Destaque Adicionais */
    --gold: #dfb76c;
    --whatsapp-green: #25D366;
    --whatsapp-hover: #20ba5a;
    
    /* Fontes */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    /* Transições e Efeitos */
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
    --shadow-premium: 0 20px 40px rgba(12, 65, 108, 0.08);
    --shadow-hover: 0 30px 60px rgba(12, 65, 108, 0.15);
    --border-radius-lg: 24px;
    --border-radius-md: 16px;
    --border-radius-sm: 8px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ----------------------------------
   2. Componentes Globais (Botões & Links)
------------------------------------- */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--navy-accent);
}

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

.highlight {
    background: linear-gradient(120deg, var(--primary-light) 0%, var(--ice-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.highlight-pureza {
    background: linear-gradient(120deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    font-weight: 800;
    position: relative;
    text-shadow: 0 0 30px rgba(12, 65, 108, 0.1);
}

.highlight-pureza::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), transparent);
    border-radius: 2px;
    transform: skewX(-15deg);
}

/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-weight: 600;
    padding: 14px 28px;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    box-shadow: 0 10px 20px rgba(12, 65, 108, 0.2);
}

.btn-primary:hover {
    background-color: var(--navy-accent);
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(12, 65, 108, 0.3);
}

.btn-whatsapp-cta {
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, #1e9f4d 100%);
    color: var(--white);
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.3);
    --pulse-color: rgba(37, 211, 102, 0.5);
    --pulse-hover-color: rgba(37, 211, 102, 0);
}

.btn-whatsapp-cta:hover {
    background: linear-gradient(135deg, #20ba5a 0%, #198c43 100%);
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(37, 211, 102, 0.45);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background-color: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-white {
    background-color: var(--white);
    color: var(--primary);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.btn-white:hover {
    background-color: var(--beige);
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1.1rem;
}

/* Animação Pulse para CTA */
.btn-pulse {
    position: relative;
    animation: ctaPulse 2s infinite;
}

@keyframes ctaPulse {
    0% {
        box-shadow: 0 0 0 0 var(--pulse-color, rgba(12, 65, 108, 0.4));
    }
    70% {
        box-shadow: 0 0 0 15px var(--pulse-hover-color, rgba(12, 65, 108, 0));
    }
    100% {
        box-shadow: 0 0 0 0 var(--pulse-hover-color, rgba(12, 65, 108, 0));
    }
}

.cta-subtext {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 10px;
    font-weight: 500;
}

.cta-subtext i {
    margin-right: 4px;
}

/* ----------------------------------
   3. Header Navigation (Glassmorphism)
------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 20px 0;
    transition: var(--transition-smooth);
}

.header.scrolled {
    padding: 12px 0;
    background-color: rgba(247, 249, 250, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.02);
    border-bottom: 1px solid rgba(142, 164, 182, 0.15);
}

.header-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-pureza {
    color: var(--primary);
}

.logo-duo {
    color: var(--slate-blue);
}

.logo-img {
    height: 44px;
    width: auto;
    display: block;
    transition: var(--transition-smooth);
}

.logo:hover .logo-img {
    transform: scale(1.03);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-dark);
    position: relative;
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition-fast);
}

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

.nav-link:hover::after {
    width: 100%;
}

.nav-link-highlight {
    background-color: var(--gold) !important;
    color: var(--primary) !important;
    padding: 8px 18px !important;
    border-radius: 20px;
    font-weight: 700 !important;
    box-shadow: 0 4px 10px rgba(223, 183, 108, 0.25);
    transition: var(--transition-smooth);
}

.nav-link-highlight:hover {
    background-color: var(--primary) !important;
    color: var(--white) !important;
    box-shadow: 0 6px 15px rgba(12, 65, 108, 0.25);
    transform: translateY(-1px);
}

.nav-link-highlight::after {
    display: none !important;
}

.mobile-nav-link-highlight {
    background-color: var(--gold) !important;
    color: var(--primary) !important;
    padding: 10px 24px !important;
    border-radius: 30px;
    font-weight: 700 !important;
    margin-top: 10px;
}

/* Mobile Hamburger Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}

.mobile-menu-btn .bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary);
    border-radius: 4px;
    transition: var(--transition-smooth);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-light);
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateY(-100%);
    transition: var(--transition-smooth);
}

.mobile-nav-overlay.active {
    transform: translateY(0);
}

.mobile-nav-menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.mobile-nav-link {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--navy-accent);
}

/* ----------------------------------
   4. Hero Section (Above the Fold)
------------------------------------- */
.hero-section {
    padding: 160px 0 80px;
    background: radial-gradient(circle at 80% 20%, rgba(194, 205, 218, 0.25) 0%, rgba(247, 249, 250, 0) 60%);
    position: relative;
    overflow: hidden;
}

.hero-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--white);
    border: 1px solid var(--ice-blue);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 24px;
    box-shadow: 0 4px 10px rgba(12, 65, 108, 0.03);
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 24px;
}

.hero-subtitle {
    display: block;
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-top: 10px;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-image-wrapper {
    position: relative;
    width: 100%;
}

.hero-image-backdrop {
    position: absolute;
    top: 10%;
    left: 10%;
    width: 100%;
    height: 100%;
    background-color: var(--primary-light);
    border-radius: var(--border-radius-lg);
    z-index: 1;
}

.hero-image {
    position: relative;
    width: 100%;
    border-radius: var(--border-radius-lg);
    z-index: 2;
    box-shadow: var(--shadow-hover);
    object-fit: cover;
    aspect-ratio: 4/3;
    display: block;
}

.floating-badge {
    position: absolute;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.4);
    padding: 16px 24px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    gap: 15px;
    box-shadow: var(--shadow-hover);
    z-index: 3;
}

.floating-badge i {
    font-size: 1.8rem;
    color: var(--primary);
}

.floating-badge div {
    display: flex;
    flex-direction: column;
}

.floating-badge strong {
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--navy-accent);
}

.floating-badge span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.fb-1 {
    bottom: -20px;
    left: -20px;
}

/* ----------------------------------
   5. Prova Social Section (Confiança)
------------------------------------- */
.social-proof-section {
    padding: 60px 0 100px;
    background-color: var(--white);
    border-top: 1px solid rgba(142, 164, 182, 0.1);
}

.proof-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.proof-stats {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 30px;
    padding: 40px;
    background-color: var(--bg-light);
    border-radius: var(--border-radius-lg);
    margin-bottom: 80px;
    box-shadow: var(--shadow-premium);
}

.stat-item {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 600;
}

.divider-left {
    border-left: 1px solid var(--primary-light);
    padding-left: 40px;
}

.couple-badge {
    display: flex;
    align-items: center;
    gap: 15px;
}

.couple-badge i {
    font-size: 2.2rem;
    color: var(--primary);
    background-color: var(--primary-light);
    padding: 14px;
    border-radius: 50%;
}

.text-gold {
    color: var(--gold);
}

.proof-testimonials-intro {
    text-align: center;
    margin-bottom: 50px;
}

.proof-testimonials-intro h2 {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.proof-testimonials-intro p {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

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

.testimonial-card {
    background-color: var(--bg-light);
    padding: 35px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-premium);
    transition: var(--transition-smooth);
    border: 1px solid rgba(142, 164, 182, 0.05);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.testimonial-stars {
    color: var(--gold);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.testimonial-text {
    font-size: 1rem;
    color: var(--text-dark);
    font-style: italic;
    margin-bottom: 24px;
    line-height: 1.6;
}

.testimonial-author {
    border-top: 1px solid rgba(142, 164, 182, 0.15);
    padding-top: 20px;
}

.author-info strong {
    display: block;
    color: var(--navy-accent);
    font-size: 1rem;
}

.author-info span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ----------------------------------
   6. Seções Comuns (Header Compartilhado)
------------------------------------- */
.section-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
    font-weight: 700;
    background-color: var(--primary-light);
    padding: 6px 16px;
    border-radius: 30px;
    display: inline-block;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 2.8rem;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
}

/* ----------------------------------
   7. Diferenciais Section
------------------------------------- */
.differentials-section {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.differentials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.diff-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-premium);
    transition: var(--transition-smooth);
    border-bottom: 4px solid transparent;
}

.diff-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-bottom-color: var(--primary);
}

.diff-icon {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 24px;
}

.diff-card h3 {
    font-size: 1.25rem;
    margin-bottom: 14px;
    font-weight: 700;
}

.diff-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ----------------------------------
   8. Antes & Depois Slider Section
------------------------------------- */
.comparison-section {
    padding: 100px 0;
    background-color: var(--white);
}

.slider-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 50px;
}

.image-comparison-slider {
    position: relative;
    width: 100%;
    max-width: 800px;
    aspect-ratio: 16/9;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-hover);
    user-select: none;
    --clip-pos: 50%;
}

.img-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.img-before img, .img-after img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
    display: block;
}

.img-after {
    z-index: 2;
    /* Usa a variável CSS clip-pos ajustada pelo JS */
    clip-path: polygon(0 0, var(--clip-pos) 0, var(--clip-pos) 100%, 0 100%);
}

.label-tag {
    position: absolute;
    bottom: 20px;
    padding: 8px 16px;
    background-color: rgba(12, 65, 108, 0.8);
    color: var(--white);
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    z-index: 3;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.label-before {
    left: 20px;
}

.label-after {
    right: 20px;
}

/* Linha de controle do Slider */
.slider-handle {
    position: absolute;
    top: 0;
    left: var(--clip-pos);
    width: 0;
    height: 100%;
    z-index: 4;
    cursor: ew-resize;
    transform: translateX(-50%);
}

.handle-line {
    position: absolute;
    left: 50%;
    width: 4px;
    height: 100%;
    background-color: var(--white);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
    transform: translateX(-50%);
}

.handle-button {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 48px;
    height: 48px;
    background-color: var(--primary);
    color: var(--white);
    border: 4px solid var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translate(-50%, -50%);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    transition: var(--transition-fast);
}

.image-comparison-slider:hover .handle-button {
    background-color: var(--navy-accent);
    transform: translate(-50%, -50%) scale(1.1);
}

.slider-cta {
    text-align: center;
}

/* ----------------------------------
   8.1. Seção de Serviços
------------------------------------- */
.services-section {
    padding: 100px 0;
    background-color: var(--white);
    border-top: 1px solid rgba(142, 164, 182, 0.1);
}

.services-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.service-card {
    background-color: var(--bg-light);
    padding: 45px 35px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-premium);
    transition: var(--transition-smooth);
    width: calc(33.333% - 20px);
    min-width: 320px;
    border-top: 4px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-top-color: var(--primary);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 22px;
}

.service-card h3 {
    font-size: 1.35rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ----------------------------------
   8.2. Seção de Impermeabilização (Destaque)
------------------------------------- */
.waterproofing-section {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--navy-accent) 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.waterproofing-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.tag-gold {
    background-color: rgba(223, 183, 108, 0.12) !important;
    color: var(--gold) !important;
    border: 1px solid rgba(223, 183, 108, 0.25) !important;
}

.highlight-gold {
    color: var(--gold);
}

.text-white {
    color: var(--white);
}

.waterproofing-description {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    line-height: 1.6;
}

.waterproofing-benefits {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
    margin-bottom: 40px;
}

.benefit-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.benefit-icon {
    font-size: 2rem;
    color: var(--gold);
    background-color: rgba(255, 255, 255, 0.08);
    padding: 12px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit-item h4 {
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.benefit-item p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.9rem;
    line-height: 1.5;
}

.btn-gold {
    background-color: var(--gold);
    color: var(--primary);
    box-shadow: 0 10px 25px rgba(223, 183, 108, 0.3);
}

.btn-gold:hover {
    background-color: var(--white);
    color: var(--primary);
    box-shadow: 0 15px 30px rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}

.waterproofing-visual {
    display: flex;
    justify-content: center;
}

.waterproofing-card {
    background-color: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
    text-align: center;
    max-width: 360px;
    position: relative;
}

.waterproofing-card::before {
    content: '';
    position: absolute;
    top: -5%;
    left: -5%;
    width: 110%;
    height: 110%;
    background: radial-gradient(circle, rgba(223, 183, 108, 0.1) 0%, transparent 60%);
    z-index: -1;
}

.waterproofing-card h3 {
    color: var(--white);
    font-size: 1.35rem;
    margin-bottom: 12px;
}

.waterproofing-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin-bottom: 30px;
}

.waterproofing-demo-circles {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    position: relative;
    margin-top: 10px;
}

.drop-circle {
    font-size: 1.8rem;
    animation: dropBounce 2.5s infinite ease-in-out;
}

.text-blue-drop {
    color: #4da6ff;
}

.drop-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, #4da6ff, var(--gold));
}

.drop-shield {
    font-size: 2.2rem;
    background-color: rgba(223, 183, 108, 0.15);
    padding: 14px;
    border-radius: 50%;
    border: 1px solid rgba(223, 183, 108, 0.3);
}

@keyframes dropBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(12px);
    }
}

/* ----------------------------------
   9. Como Funciona Section (3 passos)
------------------------------------- */
.steps-section {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.step-card {
    position: relative;
    background-color: var(--white);
    padding: 50px 35px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-premium);
    transition: var(--transition-smooth);
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.step-number {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary-light);
    opacity: 0.5;
    line-height: 1;
    margin-bottom: 20px;
}

.step-card h3 {
    font-size: 1.4rem;
    margin-bottom: 14px;
}

.step-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* ----------------------------------
   10. FAQ Section (Accordion)
------------------------------------- */
.faq-section {
    padding: 100px 0;
    background-color: var(--white);
}

.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid rgba(142, 164, 182, 0.25);
    margin-bottom: 10px;
}

.faq-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 10px;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: var(--transition-fast);
}

.faq-trigger span {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--navy-accent);
}

.faq-trigger i {
    font-size: 1.1rem;
    color: var(--primary);
    transition: transform 0.3s ease;
}

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

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-content p {
    padding: 0 10px 24px;
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.6;
}

.faq-item.active .faq-trigger i {
    transform: rotate(180deg);
}

/* ----------------------------------
   11. Final CTA Section
------------------------------------- */
.final-cta-section {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.cta-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    border-radius: var(--border-radius-lg);
    background: linear-gradient(135deg, var(--primary) 0%, var(--navy-accent) 100%);
    padding: 80px 40px;
    text-align: center;
    color: var(--white);
    overflow: hidden;
    box-shadow: var(--shadow-hover);
}

.cta-backdrop {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(194, 205, 218, 0.15) 0%, rgba(0,0,0,0) 70%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.15;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.9);
}

/* ----------------------------------
   12. Footer Section
------------------------------------- */
.footer {
    background-color: var(--text-dark);
    color: var(--white);
    padding: 80px 0 30px;
}

.footer-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo {
    display: inline-block;
    background-color: var(--white);
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: var(--transition-smooth);
    margin-bottom: 20px;
}

.footer-logo img {
    height: 52px;
    width: auto;
    display: block;
}

.footer-logo:hover {
    transform: scale(1.04);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.15);
}

.footer-brand p {
    color: var(--slate-blue);
    font-size: 0.95rem;
    max-width: 320px;
}

.footer-container h4 {
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--primary-light);
    padding-bottom: 8px;
    display: inline-block;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--slate-blue);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--white);
    padding-left: 5px;
}

.footer-contact p {
    color: var(--slate-blue);
    font-size: 0.95rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-bottom {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--slate-blue);
}

/* ----------------------------------
   13. Sticky Floating CTA (WhatsApp)
------------------------------------- */
.sticky-whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--whatsapp-green);
    color: var(--white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.3);
    z-index: 99;
    transition: var(--transition-smooth);
}

.sticky-whatsapp-btn:hover {
    background-color: var(--whatsapp-hover);
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 12px 30px rgba(37, 211, 102, 0.45);
}

.tooltip-whatsapp {
    position: absolute;
    right: 75px;
    background-color: var(--navy-accent);
    color: var(--white);
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transform: translateX(10px);
    transition: var(--transition-smooth);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.tooltip-whatsapp::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -6px;
    margin-top: -6px;
    border-width: 6px 0 6px 6px;
    border-style: solid;
    border-color: transparent transparent transparent var(--navy-accent);
}

.sticky-whatsapp-btn:hover .tooltip-whatsapp {
    opacity: 1;
    transform: translateX(0);
}

/* ----------------------------------
   14. Responsividade
------------------------------------- */

/* Desktop / Laptop */
@media (max-width: 1200px) {
    .hero-title {
        font-size: 3rem;
    }
    .hero-subtitle {
        font-size: 1.4rem;
    }
    .differentials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablet */
@media (max-width: 992px) {
    .header-cta {
        display: none;
    }
    .mobile-menu-btn {
        display: flex;
    }
    .nav-menu {
        display: none;
    }
    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    .hero-actions {
        align-items: center;
        width: 100%;
    }
    .hero-description {
        margin: 0 auto 40px;
    }
    .hero-image-wrapper {
        max-width: 600px;
        margin: 0 auto;
    }
    .proof-stats {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
        padding: 30px;
    }
    .divider-left {
        border-left: none;
        border-top: 1px solid var(--primary-light);
        padding-left: 0;
        padding-top: 40px;
    }
    .couple-badge {
        justify-content: center;
    }
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    .footer-brand p {
        margin: 0 auto;
    }
    
    /* Serviços & Impermeabilização Tablet */
    .service-card {
        width: calc(50% - 15px);
    }
    .waterproofing-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    .waterproofing-benefits {
        grid-template-columns: 1fr;
        text-align: left;
    }
    .waterproofing-action {
        text-align: center;
    }
}

/* Mobile */
@media (max-width: 576px) {
    .hero-section {
        padding: 120px 0 60px;
    }
    .hero-title {
        font-size: 2.3rem;
    }
    .hero-subtitle {
        font-size: 1.15rem;
    }
    .floating-badge {
        padding: 12px 18px;
    }
    .fb-1 {
        left: 10px;
        bottom: 10px;
    }
    .section-header h2 {
        font-size: 2rem;
    }
    .cta-content h2 {
        font-size: 2.2rem;
    }
    .cta-content p {
        font-size: 1rem;
    }
    .differentials-grid {
        grid-template-columns: 1fr;
    }
    .sticky-whatsapp-btn {
        width: 50px;
        height: 50px;
        font-size: 1.6rem;
        bottom: 20px;
        right: 20px;
    }
    .tooltip-whatsapp {
        display: none; /* Hide tooltips on small mobile */
    }
    
    /* Serviços & Impermeabilização Mobile */
    .service-card {
        width: 100%;
    }
    .waterproofing-benefits {
        gap: 20px;
    }
    .waterproofing-card {
        padding: 30px 20px;
    }
}

/* ----------------------------------
   15. Scroll Reveal CSS (Animações)
------------------------------------- */
.reveal-init {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-init.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Delays para grids e elementos combinados */
.hero-content.revealed {
    transition-delay: 0.1s;
}
.hero-image-wrapper.revealed {
    transition-delay: 0.3s;
}

.testimonials-grid .testimonial-card:nth-child(1) { transition-delay: 0.1s; }
.testimonials-grid .testimonial-card:nth-child(2) { transition-delay: 0.2s; }
.testimonials-grid .testimonial-card:nth-child(3) { transition-delay: 0.3s; }

.differentials-grid .diff-card:nth-child(1) { transition-delay: 0.1s; }
.differentials-grid .diff-card:nth-child(2) { transition-delay: 0.2s; }
.differentials-grid .diff-card:nth-child(3) { transition-delay: 0.3s; }
.differentials-grid .diff-card:nth-child(4) { transition-delay: 0.4s; }

.steps-grid .step-card:nth-child(1) { transition-delay: 0.1s; }
.steps-grid .step-card:nth-child(2) { transition-delay: 0.2s; }
.steps-grid .step-card:nth-child(3) { transition-delay: 0.3s; }

.services-grid .service-card:nth-child(1) { transition-delay: 0.1s; }
.services-grid .service-card:nth-child(2) { transition-delay: 0.2s; }
.services-grid .service-card:nth-child(3) { transition-delay: 0.3s; }
.services-grid .service-card:nth-child(4) { transition-delay: 0.4s; }
.services-grid .service-card:nth-child(5) { transition-delay: 0.5s; }
.services-grid .service-card:nth-child(6) { transition-delay: 0.6s; }

.waterproofing-benefits .benefit-item:nth-child(1) { transition-delay: 0.1s; }
.waterproofing-benefits .benefit-item:nth-child(2) { transition-delay: 0.2s; }
.waterproofing-benefits .benefit-item:nth-child(3) { transition-delay: 0.3s; }
.waterproofing-benefits .benefit-item:nth-child(4) { transition-delay: 0.4s; }

/* ----------------------------------
   16. Indicadores de Rolagem (Scroll Down Indicators)
------------------------------------- */
.scroll-indicator-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    margin-top: 40px;
    padding-bottom: 10px;
}

.scroll-indicator-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--primary-light), transparent);
    position: relative;
    overflow: hidden;
}

.scroll-indicator-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20px;
    background: var(--gold);
    animation: scrollSlideDown 2.2s infinite cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes scrollSlideDown {
    0% {
        top: -20px;
        opacity: 0;
    }
    30% {
        opacity: 1;
    }
    80% {
        opacity: 1;
    }
    100% {
        top: 60px;
        opacity: 0;
    }
}