/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

:root {
    /* Cores principais */
    --color-primary: #2E7D32;
    --color-primary-dark: #1B5E20;
    --color-primary-mid: #388E3C;
    --color-primary-light: #4CAF50;
    --color-cta: #00C853;
    --color-cta-hover: #00A837;
    --color-whatsapp: #25D366;

    /* Fundos */
    --color-bg-white: #FFFFFF;
    --color-bg-light: #F5F5F5;
    --color-bg-footer: #333333;
    --color-bg-header: #2E7D32;
    --color-bg-topbar: #1B5E20;

    /* Texto */
    --color-text-primary: #222222;
    --color-text-secondary: #555555;
    --color-text-muted: #888888;
    --color-text-white: #FFFFFF;
    --color-text-link: #2E7D32;

    /* Bordas */
    --color-border: #CCCCCC;
    --color-border-light: #E0E0E0;

    /* Tipografia */
    --font-heading: 'Roboto Condensed', 'Arial', sans-serif;
    --font-body: 'Roboto', 'Open Sans', 'Arial', sans-serif;

    /* Espaçamentos */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 60px;

    /* Bordas arredondadas */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    --border-radius-btn: 50px;

    /* Sombras */
    --shadow-card: 0 4px 12px rgba(0,0,0,0.06);
    --shadow-card-hover: 0 8px 30px rgba(0,0,0,0.12);

    /* Container */
    --container-max: 1200px;
    --container-padding: 32px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text-primary);
    background-color: var(--color-bg-white);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

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

/* ========================================
   CONTAINER
   ======================================== */

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

@media (min-width: 768px) {
    .container {
        padding: 0 var(--container-padding);
    }
}

/* ========================================
   TOP BAR
   ======================================== */

.top-bar {
    background-color: var(--color-bg-topbar);
    padding: 10px 0;
    position: relative;
    z-index: 1000;
}

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

.top-bar-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-white);
    font-size: 14px;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

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

.top-bar-link svg {
    flex-shrink: 0;
}

/* ========================================
   HEADER / NAVBAR
   ======================================== */

.header {
    background-color: var(--color-bg-header);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.header.scrolled {
    padding: 12px 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

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

.navbar-brand .logo {
    width: 180px;
    height: auto;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.navbar-menu li a:not(.btn-nav-cta) {
    color: var(--color-text-white);
    font-size: 15px;
    font-weight: 500;
    position: relative;
    padding: 8px 0;
}

.navbar-menu li a:not(.btn-nav-cta):hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-text-white);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

.btn-nav-cta {
    background-color: var(--color-cta);
    color: var(--color-text-white);
    padding: 12px 48px;
    border-radius: var(--border-radius-btn);
    font-weight: 600;
    transition: all 0.3s ease;
    white-space: nowrap;
    display: inline-block;
}

.btn-nav-cta:hover {
    background-color: var(--color-cta-hover);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 16px rgba(0, 200, 83, 0.3);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 28px;
    height: 3px;
    background-color: var(--color-text-white);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
    position: relative;
    min-height: 560px;
    display: flex;
    align-items: center;
    background-image: url('assets/imagem-medicao.jpeg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(27, 94, 32, 0.95) 0%, rgba(27, 94, 32, 0.75) 45%, rgba(27, 94, 32, 0) 85%);
    z-index: 1;
}

@media (max-width: 768px) {
    .hero {
        background-attachment: scroll;
    }
    .hero-overlay {
        background: linear-gradient(180deg, rgba(27, 94, 32, 0.95) 0%, rgba(27, 94, 32, 0.85) 100%);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 80px 0;
}

.hero-text {
    max-width: 800px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 38px;
    font-weight: 700;
    color: var(--color-text-white);
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--color-text-white);
    opacity: 0.95;
    margin-bottom: 32px;
    line-height: 1.6;
}

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

/* Animations */
.fade-in {
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.fade-in-delay {
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.fade-in-delay-2 {
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--border-radius-btn);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--color-bg-light);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.3);
}

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

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
}

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

.btn-cta:hover {
    background-color: var(--color-cta-hover);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 24px rgba(0, 200, 83, 0.4);
}

.btn-large {
    padding: 18px 40px;
    font-size: 18px;
}

/* ========================================
   CERTIFICATIONS SECTION
   ======================================== */

.certifications {
    background-color: var(--color-bg-white);
    padding: 48px 0;
    border-bottom: 1px solid var(--color-border-light);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    align-items: center;
}

.cert-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
}

.cert-icon {
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cert-item p {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-secondary);
}

/* ========================================
   SECTION STYLES
   ======================================== */

section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ========================================
   BENEFITS SECTION
   ======================================== */

.benefits {
    background-color: var(--color-bg-light);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

@media (min-width: 992px) {
    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.benefit-card {
    background-color: var(--color-bg-white);
    padding: 40px 32px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.benefit-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--color-primary-light);
}

.benefit-icon {
    color: var(--color-primary);
    margin-bottom: 24px;
}

.benefit-card h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.benefit-card p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   CTA SECTION
   ======================================== */

.cta-section {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    padding: 60px 0;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    color: var(--color-text-white);
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    color: var(--color-text-white);
    opacity: 0.95;
    margin-bottom: 32px;
}

/* ========================================
   DIFFERENTIALS SECTION
   ======================================== */

.differentials {
    background-color: var(--color-bg-white);
}

.differentials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

@media (min-width: 992px) {
    .differentials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.differential-item {
    position: relative;
    padding-left: 80px;
}

.differential-number {
    position: absolute;
    left: 0;
    top: 0;
    font-family: var(--font-heading);
    font-size: 48px;
    font-weight: 700;
    color: var(--color-primary-light);
    opacity: 0.3;
    line-height: 1;
}

.differential-item h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.differential-item p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   HOW IT WORKS SECTION
   ======================================== */

.how-it-works {
    background-color: var(--color-bg-light);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.step-item {
    background-color: var(--color-bg-white);
    padding: 32px 24px;
    border-radius: var(--border-radius-md);
    border: 2px solid var(--color-border-light);
    text-align: center;
    transition: all 0.3s ease;
}

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

.step-icon {
    margin-bottom: 20px;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-text-white);
    font-size: 28px;
    font-weight: 700;
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.3);
}

.step-item h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.step-item p {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.step-arrow {
    font-size: 32px;
    color: var(--color-primary);
    font-weight: 700;
    text-align: center;
    display: none;
}

/* ========================================
   CLIENTS SECTION
   ======================================== */

.clients {
    background-color: var(--color-bg-white);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    align-items: center;
}

.client-logo-placeholder {
    background-color: var(--color-bg-light);
    border: 2px dashed var(--color-border);
    border-radius: var(--border-radius-md);
    padding: 40px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 120px;
    transition: all 0.3s ease;
}

.client-logo-placeholder:hover {
    border-color: var(--color-primary);
    background-color: var(--color-bg-white);
}

.client-logo-placeholder span {
    font-size: 14px;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* ========================================
   FAQ SECTION
   ======================================== */

.faq {
    background-color: var(--color-bg-light);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border-light);
    border-radius: var(--border-radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--color-primary-light);
}

.faq-question {
    width: 100%;
    padding: 24px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    text-align: left;
    font-size: 17px;
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background-color: var(--color-bg-light);
}

.faq-icon {
    font-size: 28px;
    font-weight: 300;
    color: var(--color-primary);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 28px 24px;
}

.faq-answer p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   CTA FINAL SECTION
   ======================================== */

.cta-final {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: 80px 0;
}

.cta-final-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-final-content h2 {
    font-family: var(--font-heading);
    font-size: 36px;
    font-weight: 700;
    color: var(--color-text-white);
    margin-bottom: 20px;
    line-height: 1.3;
}

.cta-final-content > p {
    font-size: 18px;
    color: var(--color-text-white);
    opacity: 0.95;
    margin-bottom: 40px;
}

.cta-buttons {
    margin-bottom: 40px;
}

.cta-contact-info {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 32px;
}

.cta-contact-info p {
    color: var(--color-text-white);
    font-size: 15px;
    margin-bottom: 8px;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background-color: var(--color-bg-footer);
    color: #BBBBBB;
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
}

.footer-column h4 {
    color: var(--color-text-white);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-logo {
    width: 160px;
    margin-bottom: 16px;
}

.footer-description {
    font-size: 14px;
    line-height: 1.6;
    color: #BBBBBB;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    font-size: 14px;
    color: #CCCCCC;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-text-white);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 14px;
}

.footer-contact svg {
    color: var(--color-primary-light);
    flex-shrink: 0;
    margin-top: 4px;
}

.footer-contact a {
    color: #CCCCCC;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-contact a:hover {
    color: var(--color-text-white);
}

.footer-contact span {
    line-height: 1.5;
}

.footer-social {
    margin-top: 24px;
    display: flex;
    gap: 16px;
}

.footer-social a {
    color: #BBBBBB;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    color: var(--color-text-white);
    background-color: var(--color-primary);
    transform: translateY(-2px);
}

.footer-certifications {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-certifications p {
    font-size: 13px;
    margin-bottom: 8px;
}

.footer-bottom {
    text-align: center;
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 13px;
    color: #888888;
}

/* ========================================
   WHATSAPP FLOATING BUTTON
   ======================================== */

.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    background-color: var(--color-whatsapp);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.5);
    z-index: 9999;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.6);
}

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

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 16px rgba(37, 211, 102, 0.5);
    }
    50% {
        box-shadow: 0 4px 24px rgba(37, 211, 102, 0.7);
    }
}

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

/* Tablet */
@media (max-width: 1024px) {
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .step-arrow {
        display: none;
    }
    
    .navbar-menu {
        gap: 16px;
    }
    
    .btn-nav-cta {
        padding: 10px 24px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    /* Navbar Mobile */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .navbar-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--color-bg-header);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
        box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    }
    
    .navbar-menu.active {
        max-height: 500px;
        padding: 20px 0;
    }
    
    .navbar-menu li {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .navbar-menu li a:not(.btn-nav-cta) {
        display: block;
        padding: 16px 32px;
    }
    
    .btn-nav-cta {
        margin: 16px 32px 0;
        text-align: center;
        display: block;
        padding: 12px 24px;
    }
    
    /* Hero */
    .hero {
        min-height: 480px;
        background-attachment: scroll;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    /* Sections */
    section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 26px;
    }
    
    .section-subtitle {
        font-size: 16px;
    }
    
    /* Grids */
    .benefits-grid,
    .differentials-grid,
    .steps-grid,
    .clients-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .certifications-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    /* Differential Item */
    .differential-item {
        padding-left: 0;
        padding-top: 60px;
    }
    
    .differential-number {
        left: 50%;
        transform: translateX(-50%);
    }
    
    /* CTA */
    .cta-final-content h2 {
        font-size: 26px;
    }
    
    .btn-large {
        padding: 16px 32px;
        font-size: 16px;
        width: 100%;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    /* WhatsApp Float */
    .whatsapp-float {
        width: 56px;
        height: 56px;
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 24px;
    }
    
    .section-title {
        font-size: 22px;
    }
    
    .btn {
        font-size: 15px;
        padding: 12px 24px;
    }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* ========================================
   VIDEO COMPONENT (YOUTUBE EMBED)
   ======================================== */

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    border-radius: var(--border-radius-md);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    margin: 40px auto 0;
    max-width: 800px;
    border: 1px solid var(--color-border-light);
}

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

/* ========================================
   ACOUSTIC RISK CALCULATOR
   ======================================== */

.calculator-card {
    background-color: var(--color-bg-white);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-card-hover);
    max-width: 700px;
    margin: 0 auto;
    border: 1px solid var(--color-border-light);
}

.calculator-form-group {
    margin-bottom: 24px;
    text-align: left;
}

.calculator-form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-primary-dark);
    font-size: 15px;
}

.calculator-select {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--color-border-light);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--color-text-primary);
    background-color: var(--color-bg-light);
    transition: all 0.3s ease;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%232E7D32' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 18px center;
    background-size: 16px;
}

.calculator-select:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: var(--color-bg-white);
}

.calculator-results {
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--color-border-light);
    display: none;
}

.risk-badge {
    display: inline-block;
    padding: 8px 24px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 16px;
    color: var(--color-text-white);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.risk-badge.baixo { background-color: #4CAF50; }
.risk-badge.medio { background-color: #FFC107; color: #222; }
.risk-badge.alto { background-color: #FF9800; }
.risk-badge.critico { background-color: #F44336; animation: pulseRed 2s infinite; }

.risk-description {
    font-size: 16px;
    color: var(--color-text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

@keyframes pulseRed {
    0%, 100% { box-shadow: 0 0 0 0 rgba(244, 67, 54, 0.4); }
    50% { box-shadow: 0 0 0 10px rgba(244, 67, 54, 0); }
}

/* ========================================
   ENGINEER SECTION
   ======================================== */

.engineer-section {
    background-color: var(--color-bg-white);
}

.engineer-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: center;
}

.technical-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: center;
}

@media (max-width: 768px) {
    .technical-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .technical-grid .engineer-img-wrapper {
        grid-row: 1;
        max-width: 400px;
        margin: 0 auto;
    }
    .technical-grid .engineer-content {
        grid-row: 2;
    }
}

.engineer-img-wrapper {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 12px 36px rgba(0,0,0,0.1);
}

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

.engineer-img-wrapper:hover img {
    transform: scale(1.05);
}

.engineer-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background-color: var(--color-primary-dark);
    color: var(--color-text-white);
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.engineer-content {
    text-align: left;
}

.engineer-content h3 {
    font-family: var(--font-heading);
    font-size: 28px;
    color: var(--color-primary-dark);
    margin-bottom: 8px;
    font-weight: 700;
}

.engineer-subtitle {
    font-size: 15px;
    color: var(--color-primary-light);
    font-weight: 600;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.engineer-text p {
    font-size: 16px;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
    max-width: 600px;
}

.engineer-cta {
    margin-top: 32px;
}

@media (max-width: 768px) {
    .engineer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .engineer-img-wrapper {
        max-width: 400px;
        margin: 0 auto;
    }
}

/* ========================================
   SEALS & CLIENTS STYLING
   ======================================== */

.cert-item img {
    max-height: 80px;
    width: auto;
    object-fit: contain;
    margin-bottom: 12px;
    border-radius: 8px;
    background-color: var(--color-bg-white);
    padding: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--color-border-light);
    transition: all 0.3s ease;
}

.cert-item:hover img {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    border-color: var(--color-primary-light);
}

.clients-img-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    border: 1px solid var(--color-border-light);
    background-color: var(--color-bg-white);
    padding: 30px;
    transition: all 0.3s ease;
}

.clients-img-wrapper:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-2px);
}

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

/* Normas Relacionadas */
.normas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 40px;
}

.norma-card {
    background-color: var(--color-bg-white);
    padding: 32px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.norma-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--color-primary-light);
}

.norma-card h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.norma-card p {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.norma-link {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.3s ease;
}

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