/* ========================================
   H2TECK - Premium Hydraulic Installations
   Modern Dark Theme with Luxury Aesthetics
   ======================================== */

/* === ROOT VARIABLES === */
:root {
    /* Colors - Premium Dark Palette */
    --primary: #1a2332;
    --primary-light: #2a3544;
    --primary-dark: #0f1823;
    --accent: #c9a961;
    --accent-light: #d4b875;
    --accent-dark: #b39650;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #cbd5e0;
    --dark-gray: #4a5568;
    --text-dark: #2d3748;
    --overlay: rgba(26, 35, 50, 0.95);
    --overlay-light: rgba(26, 35, 50, 0.85);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.3);
}

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--light-gray);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* === UTILITIES === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

.section-tag {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    margin-bottom: 15px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary);
    margin-bottom: 20px;
}

.section-description {
    font-size: 18px;
    line-height: 1.8;
    color: var(--dark-gray);
    max-width: 700px;
}

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

.section-header .section-description {
    margin: 0 auto;
}

/* === BUTTONS === */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    color: var(--white);
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

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

.btn-hero-primary,
.btn-hero-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
}

.btn-hero-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
    box-shadow: 0 8px 20px rgba(201, 169, 97, 0.3);
}

.btn-hero-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(201, 169, 97, 0.4);
}

.btn-hero-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    color: var(--white);
    font-size: 18px;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-submit {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* === NAVIGATION === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: transparent;
    z-index: 1000;
    transition: var(--transition);
    padding: 20px 0;
}

.navbar.scrolled {
    background: var(--primary);
    box-shadow: var(--shadow-lg);
    padding: 15px 0;
}

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

.logo img {
    height: 50px;
    width: auto;
    transition: var(--transition);
}

.navbar.scrolled .logo img {
    height: 45px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 35px;
}

.nav-link {
    color: var(--white);
    font-size: 15px;
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

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

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

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 24px;
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

/* === HERO SECTION === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    overflow: hidden;
    padding: 120px 20px 60px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(201,169,97,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-pattern {
    position: absolute;
    top: -50%;
    right: -10%;
    width: 60%;
    height: 150%;
    background: radial-gradient(circle, rgba(201, 169, 97, 0.08) 0%, transparent 70%);
    animation: float 20s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-20px, -20px) rotate(5deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 64px;
    font-weight: 700;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 20px;
}

.title-line {
    display: block;
    font-size: 32px;
    font-weight: 400;
    color: var(--medium-gray);
    margin-bottom: 10px;
}

.title-highlight {
    display: block;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--medium-gray);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--medium-gray);
    margin-top: 5px;
}

.stat-divider {
    width: 1px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    gap: 5px;
    align-items: center;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    display: block;
    width: 2px;
    height: 15px;
    background: var(--accent);
    border-radius: 2px;
    opacity: 0.5;
}

.scroll-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.scroll-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* === SOBRE SECTION === */
.sobre {
    padding: var(--section-padding);
    background: var(--white);
}

.sobre-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.image-frame {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.image-frame img {
    width: 100%;
    height: auto;
    display: block;
}

.image-badge {
    position: absolute;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
    padding: 20px 25px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
}

.image-badge i {
    font-size: 32px;
}

.sobre-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.feature-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.feature-text h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 5px;
}

.feature-text p {
    font-size: 14px;
    color: var(--dark-gray);
    line-height: 1.5;
}

/* === SERVIÇOS SECTION === */
.servicos {
    padding: var(--section-padding);
    background: var(--light-gray);
}

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

.servico-card {
    background: var(--white);
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.servico-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--accent-light) 100%);
    transform: scaleX(0);
    transition: var(--transition);
}

.servico-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.servico-card:hover::before {
    transform: scaleX(1);
}

.servico-card.featured {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
}

.servico-card.featured .servico-title,
.servico-card.featured .servico-description {
    color: var(--white);
}

.servico-card.featured .servico-list li {
    color: var(--medium-gray);
}

.featured-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--accent);
    color: var(--white);
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.servico-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 100%);
    color: var(--white);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 25px;
}

.servico-card.featured .servico-icon {
    background: var(--accent);
}

.servico-title {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 15px;
}

.servico-description {
    font-size: 15px;
    color: var(--dark-gray);
    line-height: 1.6;
    margin-bottom: 20px;
}

.servico-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.servico-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--dark-gray);
}

.servico-list i {
    color: var(--accent);
    font-size: 12px;
}

/* === DIFERENCIAIS SECTION === */
.diferenciais {
    padding: var(--section-padding);
    background: var(--primary);
    color: var(--white);
}

.diferenciais .section-tag,
.diferenciais .section-title,
.diferenciais .section-description {
    color: var(--white);
}

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

.diferencial-card {
    background: var(--primary-light);
    border-radius: 20px;
    padding: 40px 30px;
    transition: var(--transition);
    position: relative;
    border: 1px solid rgba(201, 169, 97, 0.2);
}

.diferencial-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.diferencial-number {
    position: absolute;
    top: -15px;
    right: 30px;
    font-family: var(--font-display);
    font-size: 72px;
    font-weight: 700;
    color: rgba(201, 169, 97, 0.1);
    line-height: 1;
}

.diferencial-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 20px;
}

.diferencial-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.diferencial-card p {
    font-size: 15px;
    color: var(--medium-gray);
    line-height: 1.6;
}

/* === PROJETOS SECTION === */
.projetos {
    padding: var(--section-padding);
    background: var(--white);
}

.projetos-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.projeto-card {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.projeto-card:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-xl);
}

.projeto-image {
    position: relative;
    overflow: hidden;
    height: 400px;
}

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

.projeto-card:hover .projeto-image img {
    transform: scale(1.1);
}

.projeto-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(26, 35, 50, 0.95) 0%, transparent 100%);
    padding: 40px 30px;
    transform: translateY(50%);
    transition: var(--transition);
}

.projeto-card:hover .projeto-overlay {
    transform: translateY(0);
}

.projeto-info h4 {
    font-size: 24px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 8px;
}

.projeto-info p {
    font-size: 15px;
    color: var(--medium-gray);
}

/* === FAQ SECTION === */
.faq {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.faq-image {
    margin-top: 30px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.faq-items {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    cursor: pointer;
    transition: var(--transition);
}

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

.faq-question i {
    flex-shrink: 0;
    font-size: 18px;
    color: var(--accent);
    transition: var(--transition);
}

.faq-item.active .faq-question i {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 25px 20px;
    font-size: 15px;
    color: var(--dark-gray);
    line-height: 1.7;
}

/* === CONTATO SECTION === */
.contato {
    padding: var(--section-padding);
    background: var(--white);
}

.contato-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contato-items {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-top: 30px;
}

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

.contato-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
}

.contato-text h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.contato-text p,
.contato-text a {
    font-size: 15px;
    color: var(--dark-gray);
    line-height: 1.6;
}

.contato-text a:hover {
    color: var(--accent);
}

.cta-box {
    margin-top: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    padding: 35px;
    border-radius: 20px;
    text-align: center;
}

.cta-box h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 12px;
}

.cta-box p {
    font-size: 15px;
    color: var(--medium-gray);
    margin-bottom: 25px;
}

.contato-form-wrapper {
    background: var(--light-gray);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.contato-form h3 {
    font-size: 28px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 25px;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-family: inherit;
    font-size: 15px;
    color: var(--text-dark);
    background: var(--white);
    transition: var(--transition);
}

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

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

/* === FOOTER === */
.footer {
    background: var(--primary);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    height: 60px;
    width: auto;
    margin-bottom: 20px;
}

.footer-about p {
    font-size: 15px;
    color: var(--medium-gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    width: 45px;
    height: 45px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--accent);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--accent);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-links h4,
.footer-servicos h4,
.footer-contato h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--accent);
}

.footer-links ul,
.footer-servicos ul,
.footer-contato ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links li a,
.footer-servicos li,
.footer-contato li {
    font-size: 14px;
    color: var(--medium-gray);
    transition: var(--transition);
}

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

.footer-contato li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contato li i {
    color: var(--accent);
    width: 20px;
}

.footer-contato li a:hover {
    color: var(--accent);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    color: var(--medium-gray);
}

/* === FLOATING ELEMENTS === */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
    }
}

.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 110px;
    width: 50px;
    height: 50px;
    background: var(--accent);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 52px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .sobre-grid,
    .contato-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .servicos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .diferenciais-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--primary);
        flex-direction: column;
        padding: 30px 20px;
        gap: 20px;
        transform: translateX(-100%);
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero {
        min-height: 100vh;
        padding: 100px 20px 40px;
    }
    
    .hero-title {
        font-size: 38px;
    }
    
    .title-line {
        font-size: 22px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-stats {
        gap: 20px;
    }
    
    .stat-divider {
        display: none;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .sobre-features {
        grid-template-columns: 1fr;
    }
    
    .servicos-grid,
    .diferenciais-grid,
    .projetos-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-image {
        order: -1;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .whatsapp-float {
        width: 55px;
        height: 55px;
        font-size: 28px;
        bottom: 20px;
        right: 20px;
    }
    
    .scroll-top {
        bottom: 90px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }
    
    .title-line {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .contato-form-wrapper {
        padding: 25px;
    }
}