/* ==========================================
   EVOS ENGENHARIA — CSS
   ========================================== */

/* === Variables === */
:root {
    --primary: #1a3c40;
    --primary-light: #245a5f;
    --primary-dark: #0f2528;
    --accent: #d4912a;
    --accent-light: #e8a840;
    --accent-dark: #b87a1f;
    --white: #ffffff;
    --gray-50: #f8fafb;
    --gray-100: #f0f3f4;
    --gray-200: #e1e6e8;
    --gray-300: #c5cdd0;
    --gray-400: #8a969b;
    --gray-500: #5f6e74;
    --gray-600: #3d4a4f;
    --gray-700: #2a3338;
    --gray-800: #1a2124;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 12px 36px rgba(0,0,0,0.12);
    --shadow-xl: 0 24px 60px rgba(0,0,0,0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-700);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: 'Poppins', 'Inter', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-dark);
}

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

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

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

.section {
    padding: 100px 0;
}

/* === Section Headers === */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    background: rgba(212, 145, 42, 0.1);
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--gray-500);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

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

.btn-primary:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(212, 145, 42, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.4);
}

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

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.5);
}

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

.btn-whatsapp {
    background: #25D366;
    color: var(--white);
    border-color: #25D366;
}

.btn-whatsapp:hover {
    background: #1fba59;
    border-color: #1fba59;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.3);
}

.btn-header {
    background: var(--accent);
    color: var(--white);
    border-color: var(--accent);
    padding: 10px 20px;
    font-size: 0.85rem;
}

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

/* === Header === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.header.scrolled {
    border-bottom-color: var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 90px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0;
}

.logo .logo-img {
    width: 140px;
    height: 140px;
    margin-right: -40px;
}

.logo-img {
    width: 120px;
    height: 120px;
    object-fit: contain;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-name {
    font-family: 'Poppins', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary);
    letter-spacing: 2px;
}

.logo-sub {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--gray-400);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.nav {
    display: flex;
    gap: 8px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-600);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: var(--gray-50);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* === Hero === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-video-wrapper {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 1.2s ease;
}

.hero-video.active {
    opacity: 1;
}

.hero-video-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 37, 40, 0.88) 0%, rgba(26, 60, 64, 0.78) 50%, rgba(36, 90, 95, 0.7) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
}

.hero-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--accent-light);
    background: rgba(212, 145, 42, 0.15);
    padding: 8px 20px;
    border-radius: 50px;
    margin-bottom: 24px;
    border: 1px solid rgba(212, 145, 42, 0.25);
}

.hero-title {
    font-size: clamp(2.2rem, 5.5vw, 3.5rem);
    color: var(--white);
    margin-bottom: 20px;
    line-height: 1.15;
}

.highlight {
    color: var(--accent-light);
}

.hero-text {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.75);
    margin-bottom: 36px;
    max-width: 560px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

/* === Contadores === */
.counters {
    background: var(--primary);
    padding: 48px 0;
    margin-top: -2px;
}

.counters-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

.counter-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.counter-icon {
    font-size: 1.6rem;
    color: var(--accent-light);
    margin-bottom: 8px;
}

.counter-number {
    font-family: 'Poppins', sans-serif;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--white);
    display: inline;
    line-height: 1;
}

.counter-suffix {
    font-family: 'Poppins', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-light);
}

.counter-label {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    font-weight: 500;
    margin-top: 4px;
}

/* === Sobre === */
.sobre {
    background: var(--gray-50);
}

.sobre-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 60px;
    align-items: start;
}

.sobre-content .section-tag {
    margin-bottom: 12px;
}

.sobre-content .section-title {
    margin-bottom: 24px;
}

.sobre-text {
    color: var(--gray-500);
    margin-bottom: 16px;
    line-height: 1.75;
}

.sobre-features {
    margin-top: 28px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
    color: var(--gray-700);
}

.feature-item i {
    color: var(--accent);
    font-size: 1.1rem;
}

.sobre-visual {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 100px;
}

.sobre-image {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.sobre-image img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

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

.sobre-cards-row {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sobre-card {
    background: var(--white);
    padding: 28px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--accent);
    transition: var(--transition);
}

.sobre-card:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-lg);
}

.sobre-card i {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.sobre-card h3 {
    font-size: 1.05rem;
    margin-bottom: 6px;
}

.sobre-card p {
    font-size: 0.9rem;
    color: var(--gray-500);
}

/* === Serviços === */
.servicos-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    padding: 14px 32px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--gray-500);
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover {
    border-color: var(--primary-light);
    color: var(--primary);
}

.tab-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

.tab-btn i {
    font-size: 1.1rem;
}

.servicos-banner {
    width: 100%;
    height: 220px;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 48px;
    box-shadow: var(--shadow-md);
}

.servicos-banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 40%;
}

.tab-content {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.servico-categoria {
    margin-bottom: 12px;
}

.categoria-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    text-align: left;
    font-family: inherit;
    outline: none;
}

.categoria-header:hover {
    background: var(--white);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-sm);
}

.categoria-header.active {
    background: var(--primary);
    border-color: var(--primary);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.categoria-header.active h3 {
    color: var(--white);
}

.categoria-header.active .categoria-icon {
    background: rgba(255,255,255,0.2);
}

.categoria-header.active .categoria-arrow {
    color: var(--white);
    transform: rotate(180deg);
}

.categoria-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-sm);
    color: var(--white);
    font-size: 1rem;
    flex-shrink: 0;
}

.categoria-header h3 {
    font-size: 1.1rem;
    flex: 1;
}

.categoria-arrow {
    font-size: 0.9rem;
    color: var(--gray-400);
    transition: transform 0.3s ease;
    margin-left: auto;
}

.servico-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 12px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 20px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-top: none;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.servico-grid.open {
    max-height: 800px;
    padding: 20px;
}

.servico-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    font-size: 0.93rem;
    color: var(--gray-600);
    transition: var(--transition);
    border: 1px solid transparent;
}

.servico-item::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    flex-shrink: 0;
}

.servico-item:hover {
    background: var(--white);
    border-color: var(--gray-200);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

/* === Diferenciais === */
.diferenciais {
    background: var(--gray-50);
}

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

.diferencial-card {
    background: var(--white);
    padding: 36px 28px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
    border: 1px solid var(--gray-100);
}

.diferencial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.diferencial-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(26,60,64,0.08), rgba(26,60,64,0.03));
    border-radius: var(--radius-md);
    margin: 0 auto 20px;
    font-size: 1.4rem;
    color: var(--primary);
    transition: var(--transition);
}

.diferencial-card:hover .diferencial-icon {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
}

.diferencial-card h3 {
    font-size: 1.05rem;
    margin-bottom: 10px;
}

.diferencial-card p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
}

/* === CTA Section === */
.cta-section {
    background:
        linear-gradient(135deg, rgba(15, 37, 40, 0.9) 0%, rgba(26, 60, 64, 0.85) 50%, rgba(36, 90, 95, 0.8) 100%),
        url('img/cta-bg.jpg') center/cover no-repeat;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(212, 145, 42, 0.08) 0%, transparent 60%);
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.2rem);
    color: var(--white);
    margin-bottom: 12px;
}

.cta-content p {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* === Contato === */
.contato-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contato-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.info-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.info-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border-radius: var(--radius-sm);
    color: var(--white);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.info-card h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.info-card a {
    color: var(--primary);
    font-weight: 600;
    font-size: 1rem;
}

.info-card a:hover {
    color: var(--accent);
}

.info-card p {
    font-size: 0.93rem;
    color: var(--gray-600);
    line-height: 1.5;
}

.contato-map {
    margin-top: 4px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* === Form === */
.contato-form {
    background: var(--gray-50);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.contato-form label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-600);
    margin-bottom: 6px;
}

.contato-form input,
.contato-form select,
.contato-form textarea {
    width: 100%;
    padding: 12px 16px;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--gray-700);
    transition: var(--transition);
    outline: none;
}

.contato-form input:focus,
.contato-form select:focus,
.contato-form textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,60,64,0.1);
}

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

.contato-form select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235f6e74' d='M6 8.825L.35 3.175l.7-.7L6 7.425l4.95-4.95.7.7z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

/* === Clientes === */
.clientes {
    background: var(--white);
    padding-bottom: 60px;
}

.clientes-track {
    overflow: hidden;
    position: relative;
    mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}

.clientes-slide {
    display: flex;
    gap: 48px;
    animation: scrollClientes 35s linear infinite;
    width: max-content;
}

.cliente-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 200px;
    height: 120px;
    padding: 20px 24px;
    background: #fff;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    flex-shrink: 0;
}

.cliente-logo:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.cliente-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.75;
    transition: var(--transition);
}

.cliente-logo:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

@keyframes scrollClientes {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* === Blog === */
.blog {
    background: var(--gray-50);
}

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

.blog-card {
    display: block;
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    color: inherit;
    text-decoration: none;
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.blog-img {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.blog-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.blog-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--accent);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.blog-body {
    padding: 24px;
}

.blog-body h3 {
    font-size: 1.05rem;
    margin-bottom: 10px;
    line-height: 1.4;
}

.blog-body p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 16px;
}

.blog-date {
    font-size: 0.8rem;
    color: var(--gray-400);
    font-weight: 500;
}

.blog-date i {
    margin-right: 4px;
    color: var(--accent);
}

/* === Footer === */
.footer {
    background: var(--gray-800);
    padding: 60px 0 0;
    color: var(--gray-300);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand p {
    margin-top: 16px;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--gray-400);
}

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

.footer-brand .logo-sub {
    color: var(--gray-400);
}

.footer-links h4 {
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links a {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--gray-400);
    padding: 4px 0;
}

.footer-links a:hover {
    color: var(--accent-light);
    transform: translateX(4px);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 0.85rem;
    color: var(--gray-500);
}

/* === WhatsApp Float === */
.whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    color: var(--white);
    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 28px 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); }
}

/* === Back to Top === */
.back-to-top {
    position: fixed;
    bottom: 28px;
    right: 100px;
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: var(--transition);
    z-index: 998;
    box-shadow: var(--shadow-md);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--accent);
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 1024px) {
    .sobre-grid {
        grid-template-columns: 1fr;
    }

    .sobre-visual {
        position: static;
    }

    .sobre-cards-row {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

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

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

    .counters-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

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

@media (max-width: 768px) {
    .section {
        padding: 72px 0;
    }

    .nav {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--gray-200);
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        transition: var(--transition);
        z-index: 999;
    }

    .nav.open {
        transform: translateY(0);
    }

    .nav-link {
        padding: 12px 16px;
        font-size: 1rem;
    }

    .btn-header {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding: 140px 0 100px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .servicos-tabs {
        flex-direction: column;
        align-items: stretch;
    }

    .tab-btn {
        justify-content: center;
    }

    .servico-grid {
        grid-template-columns: 1fr;
    }

    .diferenciais-grid {
        grid-template-columns: 1fr;
    }

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

    .counter-number {
        font-size: 2.2rem;
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }

    .contato-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .sobre-visual {
        grid-template-columns: 1fr;
    }

    .sobre-cards-row {
        display: grid;
        grid-template-columns: 1fr;
    }

    .sobre-image img {
        height: 200px;
    }

    .servicos-banner {
        height: 150px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        text-align: center;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 1.7rem;
    }

    .contato-form {
        padding: 24px;
    }

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 54px;
        height: 54px;
        font-size: 1.5rem;
    }

    .back-to-top {
        right: 84px;
        bottom: 20px;
    }
}