/* Reset e Variáveis */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-dark: #0f1419;
    --bg-card: #1a1f2e;
    --bg-light: #2a3142;
    --text-primary: #f5f5f5;
    --text-secondary: #b0b0b0;
    --accent: #00d4ff;
    --accent-dark: #0099cc;
    --accent-light: #33e0ff;
    --border: #2a3142;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.5);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Tipografia */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
}

.logo {
    width: 32px;
    height: 32px;
}

.navbar-menu {
    display: flex;
    gap: 2rem;
    flex: 1;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

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

/* Botões */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-dark);
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 212, 255, 0.3);
}

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

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-title {
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

.hero-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.partner-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
}

/* Seções */
.about, .services, .publications, .contact {
    padding: 5rem 0;
    border-top: 1px solid var(--border);
}

.about {
    background: rgba(26, 31, 46, 0.5);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

/* Partners Grid */
.partners-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.partner-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.partner-card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

.partner-photo {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
}

.partner-name {
    margin-bottom: 0.5rem;
}

.partner-title {
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 1rem;
}

.partner-bio {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

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

.social-link {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.social-link:hover {
    color: var(--accent-light);
}

/* Services */
.service-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: var(--accent);
    color: var(--bg-dark);
    border-color: var(--accent);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    display: none;
}

.service-grid.active {
    display: grid;
}

.service-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.service-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

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

.service-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Publications */
.publications {
    background: rgba(26, 31, 46, 0.5);
}

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

.publication-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.publication-card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

.pub-type {
    display: inline-block;
    background: rgba(0, 212, 255, 0.2);
    color: var(--accent);
    padding: 0.25rem 0.75rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.publication-card h3 {
    margin-bottom: 1rem;
}

.publication-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.read-more {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: var(--accent-light);
}

/* Contact */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h3 {
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-details {
    margin-bottom: 2rem;
}

.contact-item {
    margin-bottom: 1rem;
}

.contact-item strong {
    display: block;
    margin-bottom: 0.25rem;
}

.contact-item a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--accent-light);
}

.social-icons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.social-icon {
    color: var(--accent);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--accent);
}

/* Form */
.contact-form {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

.form-message {
    margin-top: 1rem;
    text-align: center;
    font-weight: 600;
}

.form-message.success {
    color: #00cc00;
}

.form-message.error {
    color: #ff6b6b;
}

/* Footer */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 3rem 0 1rem;
}

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

.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-section ul {
    list-style: none;
}

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

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* WhatsApp Button */
.whatsapp-button {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    background: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    z-index: 50;
    text-decoration: none;
}

.whatsapp-button:hover {
    background: #20ba5a;
    transform: scale(1.1);
}

/* Responsividade */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 1.75rem; }
    
    .navbar-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .navbar-menu {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .whatsapp-button {
        width: 48px;
        height: 48px;
        bottom: 1rem;
        right: 1rem;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    
    .hero {
        padding: 3rem 0;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .service-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        width: 100%;
    }
}