:root {
    /* Cores principais */
    --primary-blue: #1a237e;
    --dark-blue: #0d1452;
    --medium-blue: #283593;
    --light-blue: #e8eaf6;
    --accent-orange: #ff9800;
    --accent-orange-hover: #ffb74d;
    --accent-green: #4caf50;
    --accent-red: #f44336;
    
    /* Cores de texto */
    --text-primary: #ffffff;
    --text-secondary: #e3f2fd;
    --text-muted: #90a4ae;
    --text-dark: #263238;
    
    /* Estados */
    --success: #4CAF50;
    --warning: #FF9800;
    --error: #f44336;
    
    /* Espaçamentos */
    --section-padding: 100px 0;
    --container-max-width: 1200px;
    
    /* Sombras */
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 5px 20px rgba(0,0,0,0.15);
    --shadow-heavy: 0 10px 30px -15px rgba(2,12,27,0.7);
    
    /* Fontes */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    /* Bordas */
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-secondary);
    background-color: var(--primary-blue);
    font-weight: 400;
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    text-align: center;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1.5rem;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-subtitle {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--text-muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-heading);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--accent-orange);
    color: var(--text-dark);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    background: var(--accent-orange-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

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

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--accent-orange);
    color: var(--text-dark);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

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

/* Header */
.header {
    background: rgba(13, 20, 82, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: var(--shadow-heavy);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
}

.logo-subtitle {
    font-size: 0.8rem;
    font-weight: 400;
    opacity: 0.8;
}

.nav-desktop ul {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-desktop a {
    font-weight: 500;
    position: relative;
}

.nav-desktop a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-orange);
    transition: width 0.3s ease;
}

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

.menu-mobile-icon {
    display: none;
}

.menu-mobile-icon button {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

.nav-mobile {
    display: none;
    background: var(--dark-blue);
    padding: 1rem;
}

.nav-mobile ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.nav-mobile a {
    display: block;
    padding: 0.5rem 0;
    font-weight: 500;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 4rem;
}

.hero-text h1 {
    margin-bottom: 1.5rem;
}

.hero-text p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--text-muted);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.flask-animation {
    position: relative;
    width: 200px;
    height: 300px;
}

.flask {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 200px;
    background: rgba(255,255,255,0.1);
    border-radius: 0 0 60px 60px;
    border: 2px solid rgba(255,255,255,0.3);
    overflow: hidden;
}

.liquid {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 70%;
    background: linear-gradient(to top, var(--accent-orange), #ffb74d);
    border-radius: 0 0 60px 60px;
    animation: liquidMove 3s ease-in-out infinite;
}

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

.bubbles {
    position: absolute;
    bottom: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
}

.bubble {
    position: absolute;
    background: rgba(255,255,255,0.6);
    border-radius: 50%;
    animation: bubbleRise 3s infinite;
}

.bubble:nth-child(1) {
    width: 8px;
    height: 8px;
    left: 20%;
    animation-delay: 0s;
}

.bubble:nth-child(2) {
    width: 12px;
    height: 12px;
    left: 50%;
    animation-delay: 1s;
}

.bubble:nth-child(3) {
    width: 6px;
    height: 6px;
    left: 80%;
    animation-delay: 2s;
}

@keyframes bubbleRise {
    0% {
        transform: translateY(0) scale(1);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) scale(0.5);
        opacity: 0;
    }
}

.hero-stats {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.stat-card {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--text-dark);
    font-size: 1.5rem;
}

.stat-content h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* About Section */
.about {
    background: var(--dark-blue);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-orange);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.feature-content h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.about-cta {
    margin-top: 2rem;
}

.lab-equipment {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.equipment-item {
    background: rgba(255,255,255,0.05);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
}

.equipment-item:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-5px);
}

.equipment-item i {
    font-size: 2rem;
    color: var(--accent-orange);
    margin-bottom: 1rem;
    display: block;
}

.equipment-item span {
    font-weight: 500;
    color: var(--text-primary);
}

/* Services Section */
.services {
    background: var(--primary-blue);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: rgba(255,255,255,0.05);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s ease;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-10px);
    background: rgba(255,255,255,0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--accent-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--text-dark);
    font-size: 2rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.service-features {
    margin: 1.5rem 0;
    text-align: left;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.service-features i {
    color: var(--accent-orange);
}

/* Lab Section */
.lab {
    background: var(--dark-blue);
}

.lab-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.lab-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.lab-feature {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.feature-number {
    width: 60px;
    height: 60px;
    background: var(--accent-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.feature-content h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.lab-equipment-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.equipment-card {
    background: rgba(255,255,255,0.05);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
}

.equipment-card:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-5px);
}

.equipment-card i {
    font-size: 2.5rem;
    color: var(--accent-orange);
    margin-bottom: 1rem;
    display: block;
}

.equipment-card h5 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.equipment-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0;
}

/* Standards Section */
.standards {
    background: var(--primary-blue);
}

.standards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.standard-card {
    background: rgba(255,255,255,0.05);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
}

.standard-card:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-5px);
}

.standard-icon {
    width: 80px;
    height: 80px;
    background: var(--accent-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--text-dark);
    font-size: 2rem;
}

.standard-card h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Contact Section */
.contact {
    background: var(--dark-blue);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-details h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-link {
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--accent-orange);
    color: var(--text-dark);
    transform: translateY(-3px);
}

.contact-form {
    background: rgba(255,255,255,0.05);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255,255,255,0.1);
}

.form-group {
    position: relative;
    margin-bottom: 2rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-orange);
    background: rgba(255,255,255,0.15);
}

.form-group label {
    position: absolute;
    top: 1rem;
    left: 1rem;
    color: var(--text-muted);
    transition: all 0.3s ease;
    pointer-events: none;
}

.form-group input:focus ~ label,
.form-group input:valid ~ label,
.form-group select:valid ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:valid ~ label {
    top: -0.5rem;
    left: 0.5rem;
    font-size: 0.8rem;
    background: var(--dark-blue);
    padding: 0 0.5rem;
    color: var(--accent-orange);
}

/* Footer */
.footer {
    background: #0a0f3d;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a:hover {
    color: var(--accent-orange);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-heavy);
    z-index: 1000;
    transition: all 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
}

/* Responsividade */
@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }
    
    .menu-mobile-icon {
        display: block;
    }
    
    .nav-mobile.active {
        display: block;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .lab-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .standards-grid {
        grid-template-columns: 1fr;
    }
    
    .lab-equipment {
        grid-template-columns: 1fr;
    }
    
    .lab-equipment-showcase {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Animações AOS personalizadas */
[data-aos] {
    pointer-events: none;
}

[data-aos].aos-animate {
    pointer-events: auto;
}