/* ==========================================================================
   Vigilia Cerrado — Design System & Styles (Clean Light Theme)
   ========================================================================== */

/* 1. Variáveis Globais */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    
    --accent-green: #10b981;
    --accent-green-hover: #059669;
    --accent-green-light: #ecfdf5;
    
    --accent-orange: #f59e0b;
    --accent-orange-hover: #d97706;
    --accent-orange-light: #fffbeb;
    
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
    --shadow-glow: 0 0 15px rgba(16, 185, 129, 0.15);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --header-height: 80px;
}

/* 2. Reset e Regras Gerais */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-secondary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.25;
}

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

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 3. Componentes de Texto e Layout */
.section-padding {
    padding: 100px 0;
}

.bg-alt {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.section-tag {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-green);
    margin-bottom: 12px;
    display: inline-block;
}

.section-title {
    font-size: 36px;
    margin-bottom: 18px;
    letter-spacing: -0.5px;
}

.section-desc {
    font-size: 18px;
    color: var(--text-muted);
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-green) 0%, var(--accent-orange) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 600;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 16px;
}

.btn-primary {
    background-color: var(--accent-green);
    color: #ffffff;
    box-shadow: 0 4px 6px rgba(16, 185, 129, 0.2);
}

.btn-primary:hover {
    background-color: var(--accent-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(16, 185, 129, 0.3);
}

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

.btn-secondary:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--text-primary);
    transform: translateY(-2px);
}

.btn-group {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* 4. Cabeçalho */
.main-header {
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-container {
    max-width: 1200px;
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 45px;
    width: auto;
    border-radius: 0;
    border: none;
    object-fit: contain;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.logo-text .accent-text {
    color: var(--accent-green);
}

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

.nav-list {
    display: flex;
    gap: 28px;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 15px;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
}

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

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

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

.social-nav {
    display: flex;
    align-items: center;
    gap: 16px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 38px;
    width: 38px;
    border-radius: 50%;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

.social-link:hover {
    background-color: var(--accent-green-light);
    border-color: var(--accent-green);
    transform: translateY(-2px);
}

.social-link:hover .social-icon {
    fill: var(--accent-green);
}

.social-icon {
    height: 18px;
    width: 18px;
    fill: var(--text-secondary);
    transition: fill 0.3s ease;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
}

/* 5. Seção Hero (index.php) */
.hero-section {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 100px;
    position: relative;
    background: radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.05) 0%, rgba(255, 255, 255, 0) 50%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 52px;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -1.5px;
}

.hero-desc {
    font-size: 20px;
    line-height: 1.6;
    margin-bottom: 36px;
    color: var(--text-secondary);
}

/* Painel do Simulador Epidemiológico */
.simulator-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.simulator-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-green) 0%, var(--accent-orange) 100%);
}

.simulator-header {
    margin-bottom: 24px;
}

.simulator-title {
    font-size: 20px;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.simulator-subtitle {
    font-size: 14px;
    color: var(--text-muted);
}

.simulator-sliders {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.slider-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.slider-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
}

.slider-label span.value-display {
    color: var(--accent-green);
}

.simulator-range {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--bg-tertiary);
    outline: none;
}

.simulator-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-green);
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: var(--shadow-sm);
    transition: transform 0.1s ease;
}

.simulator-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.simulator-result {
    padding: 20px;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.result-label {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}

.result-badge {
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 700;
    border-radius: 30px;
    text-transform: uppercase;
}

.badge-low {
    background-color: var(--accent-green-light);
    color: var(--accent-green-hover);
}

.badge-medium {
    background-color: #fffbeb;
    color: #b45309;
}

.badge-high {
    background-color: #fff1f2;
    color: #e11d48;
}

.result-text {
    font-size: 14px;
    line-height: 1.5;
}

/* 6. Seção Quem Somos (História) */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content h3 {
    font-size: 28px;
    margin-bottom: 20px;
}

.about-p {
    font-size: 16px;
    margin-bottom: 20px;
}

.about-highlights {
    margin-top: 30px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.highlight-item {
    padding: 20px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.highlight-title {
    font-size: 16px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

.highlight-title .icon-circle {
    display: inline-flex;
    height: 8px;
    width: 8px;
    border-radius: 50%;
    background-color: var(--accent-green);
}

.highlight-desc {
    font-size: 13px;
    color: var(--text-muted);
}

/* 7. Seção Nossos Trabalhos (Metodologia) */
.methodology-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
}

.step-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.step-card {
    display: flex;
    gap: 20px;
    padding: 24px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.step-number {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 800;
    color: var(--accent-green);
    line-height: 1;
}

.step-title {
    font-size: 18px;
    margin-bottom: 6px;
}

.step-desc {
    font-size: 14px;
    color: var(--text-muted);
}

.schema-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
    text-align: center;
}

.schema-title {
    font-size: 20px;
    margin-bottom: 30px;
}

.pipeline-flow {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: center;
}

.pipeline-node {
    width: 100%;
    padding: 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    font-size: 14px;
    font-weight: 600;
    background-color: var(--bg-secondary);
}

.pipeline-node.accent {
    background-color: var(--accent-green-light);
    border-color: var(--accent-green);
    color: var(--accent-green-hover);
}

.pipeline-arrow {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1;
}

/* 8. Seção Equipe */
.team-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.team-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.team-avatar-img {
    height: 120px;
    width: 120px;
    border-radius: var(--radius-md);
    object-fit: cover;
    border: 3px solid var(--border-color);
    flex-shrink: 0;
}

.team-info {
    flex-grow: 1;
}

.team-name {
    font-size: 22px;
    margin-bottom: 4px;
}

.team-role {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent-green);
    margin-bottom: 12px;
    text-transform: uppercase;
}

.team-edu {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px dashed var(--border-color);
}

.team-quote {
    font-size: 14px;
    font-style: italic;
    color: var(--text-secondary);
    position: relative;
    padding-left: 20px;
    border-left: 3px solid var(--accent-orange);
}

/* 9. Seção Projetos */
.filter-bar {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 14px;
    padding: 8px 20px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--accent-green);
    border-color: var(--accent-green);
    color: #ffffff;
}

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

.project-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-hover);
}

.project-meta {
    padding: 24px 24px 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.project-tag {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 4px 10px;
    border-radius: 20px;
}

.tag-health {
    background-color: var(--accent-green-light);
    color: var(--accent-green-hover);
}

.tag-environmental {
    background-color: var(--accent-orange-light);
    color: var(--accent-orange-hover);
}

.tag-esg {
    background-color: #f0fdfa;
    color: #0f766e;
}

.project-status {
    font-size: 12px;
    color: var(--text-muted);
}

.project-body {
    padding: 20px 24px 24px 24px;
    flex-grow: 1;
}

.project-card-title {
    font-size: 20px;
    margin-bottom: 12px;
}

.project-card-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.project-card-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 14px;
    color: var(--accent-green-hover);
}

.project-card-btn:hover {
    gap: 10px;
}

/* 10. Seção Contato */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 45px;
}

.contact-info-item {
    display: flex;
    gap: 20px;
}

.info-icon-circle {
    display: flex;
    height: 48px;
    width: 48px;
    border-radius: 50%;
    background-color: var(--accent-green-light);
    color: var(--accent-green);
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.info-desc {
    font-size: 14px;
}

.contact-fomento {
    padding: 24px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.contact-fomento-title {
    font-size: 16px;
    margin-bottom: 8px;
}

.contact-fomento-desc {
    font-size: 13px;
    color: var(--text-muted);
}

.contact-form {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.form-title {
    font-size: 24px;
    margin-bottom: 24px;
}

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

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    outline: none;
    font-family: var(--font-body);
    font-size: 15px;
    transition: all 0.3s ease;
}

.form-input:focus {
    border-color: var(--accent-green);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

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

/* 11. Páginas de Projetos (projetos/.../index.php) */
.project-detail-hero {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 60px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.project-detail-hero .container {
    max-width: 900px;
}

.project-detail-tag {
    margin-bottom: 16px;
}

.project-detail-title {
    font-size: 42px;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.project-detail-desc {
    font-size: 20px;
    color: var(--text-muted);
}

.project-detail-body {
    padding: 80px 0;
}

.project-detail-body .container {
    max-width: 900px;
}

.project-content-block {
    margin-bottom: 45px;
}

.project-content-block h3 {
    font-size: 24px;
    margin-bottom: 18px;
    border-bottom: 2px solid var(--bg-tertiary);
    padding-bottom: 8px;
}

.project-content-block p {
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 18px;
}

.project-spec-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 30px;
}

.project-spec-table th, .project-spec-table td {
    padding: 14px 18px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.project-spec-table th {
    background-color: var(--bg-secondary);
    font-weight: 700;
    color: var(--text-primary);
}

.project-spec-table tr:hover {
    background-color: var(--bg-secondary);
}

.back-home-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--accent-green-hover);
    margin-bottom: 20px;
}

.back-home-btn:hover {
    color: var(--text-primary);
}

/* 12. Rodapé */
.main-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 40px 0;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.6fr 0.8fr 1.4fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-logo-img {
    height: 38px;
    width: auto;
    border-radius: 0;
    object-fit: contain;
}

.footer-desc {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.footer-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 34px;
    width: 34px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
}

.footer-social-link:hover {
    background-color: var(--accent-green-light);
    border-color: var(--accent-green);
    transform: translateY(-2px);
}

.footer-social-link:hover .social-icon {
    fill: var(--accent-green);
}

.footer-title {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links-list li {
    margin-bottom: 12px;
    font-size: 14px;
}

.footer-links-list a:hover {
    color: var(--accent-green);
    padding-left: 4px;
}

.footer-address {
    font-style: normal;
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-fomento {
    padding-top: 16px;
    border-top: 1px dashed var(--border-color);
}

.fomento-title {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.fomento-desc {
    font-size: 12px;
    color: var(--text-muted);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
}

/* ==========================================================================
   13. Styles do Chatbot Flutuante Widget
   ========================================================================== */
.chatbot-widget {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 1000;
    font-family: var(--font-body);
}

.chat-trigger-btn {
    height: 56px;
    width: 56px;
    border-radius: 50%;
    background-color: var(--accent-green);
    color: #ffffff;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3), 0 0 0 0 rgba(16, 185, 129, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.3s ease;
    animation: chatPulse 2.5s infinite;
}

.chat-trigger-btn:hover {
    background-color: var(--accent-green-hover);
    transform: scale(1.05);
    box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4);
}

.trigger-icon {
    height: 24px;
    width: 24px;
    fill: #ffffff;
}

.trigger-badge {
    position: absolute;
    top: -3px;
    right: -3px;
    background-color: #ef4444;
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    height: 20px;
    width: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #ffffff;
}

@keyframes chatPulse {
    0% {
        box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3), 0 0 0 0 rgba(16, 185, 129, 0.4);
    }
    70% {
        box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3), 0 0 0 10px rgba(16, 185, 129, 0);
    }
    100% {
        box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3), 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

.chat-window {
    width: 360px;
    height: 520px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    position: absolute;
    bottom: 75px;
    right: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.chat-window.open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: all;
}

.chat-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.chat-avatar-container {
    position: relative;
    flex-shrink: 0;
}

.chat-header-avatar {
    height: 40px;
    width: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 1.5px solid var(--border-color);
}

.online-indicator {
    height: 10px;
    width: 10px;
    border-radius: 50%;
    background-color: var(--accent-green);
    border: 2px solid #ffffff;
    position: absolute;
    bottom: 0;
    right: 0;
}

.chat-header-info {
    flex-grow: 1;
}

.chat-header-title {
    font-size: 15px;
    margin-bottom: 2px;
}

.chat-header-subtitle {
    font-size: 11px;
    color: var(--text-muted);
}

.chat-close-btn {
    background: transparent;
    border: none;
    font-size: 24px;
    color: var(--text-muted);
    cursor: pointer;
}

.chat-close-btn:hover {
    color: var(--text-primary);
}

.chat-messages {
    flex-grow: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background-color: var(--bg-secondary);
}

.message {
    display: flex;
    flex-direction: column;
    max-width: 80%;
}

.message.incoming {
    align-self: flex-start;
}

.message.outgoing {
    align-self: flex-end;
}

.message-bubble {
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.5;
}

.message.incoming .message-bubble {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
    border: 1px solid var(--border-color);
}

.message.outgoing .message-bubble {
    background-color: var(--accent-green);
    color: #ffffff;
    border-bottom-right-radius: 4px;
}

.message-time {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 4px;
    padding: 0 4px;
}

.message.outgoing .message-time {
    align-self: flex-end;
}

/* Sugestões de Perguntas */
.chat-suggestions {
    padding: 12px;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 8px;
    overflow-x: auto;
    white-space: nowrap;
    -scrollbar-width: none; /* Firefox */
}

.chat-suggestions::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.suggestion-btn {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 500;
    padding: 8px 14px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    cursor: pointer;
    flex-shrink: 0;
}

.suggestion-btn:hover {
    border-color: var(--accent-green);
    color: var(--accent-green-hover);
    background-color: var(--accent-green-light);
}

/* Área de Input */
.chat-input-area {
    padding: 12px 16px;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    align-items: center;
}

.chat-input-area input {
    flex-grow: 1;
    border: none;
    outline: none;
    font-family: var(--font-body);
    font-size: 14px;
    padding: 8px 0;
}

.chat-input-area button {
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.send-icon {
    height: 20px;
    width: 20px;
    fill: var(--accent-green);
    transition: fill 0.3s ease;
}

.chat-input-area button:hover .send-icon {
    fill: var(--accent-green-hover);
}

/* Animação Typing Indicator */
.typing-bubble {
    display: flex;
    gap: 4px;
    padding: 12px 18px;
}

.typing-dot {
    height: 6px;
    width: 6px;
    background-color: var(--text-muted);
    border-radius: 50%;
    animation: typingAnimation 1.4s infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingAnimation {
    0%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    50% {
        transform: translateY(-4px);
        opacity: 1;
    }
}

/* ==========================================================================
   14. Responsividade (Adaptabilidade Fluida)
   ========================================================================== */

/* Telas de Computador (Até 1024px) */
@media (max-width: 1024px) {
    .hero-section {
        padding-top: calc(var(--header-height) + 40px);
        padding-bottom: 80px;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .hero-content {
        text-align: center;
        max-width: 800px;
        margin: 0 auto;
    }
    
    .hero-content h1 {
        font-size: 44px;
    }
    
    .btn-group {
        justify-content: center;
    }
    
    .simulator-card {
        max-width: 550px;
        margin: 0 auto;
    }
    
    .about-grid, .methodology-grid, .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablets (Até 768px) */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: var(--bg-primary);
        border-top: 1px solid var(--border-color);
        padding: 40px;
        flex-direction: column;
        align-items: flex-start;
        transition: left 0.4s ease;
        z-index: 999;
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.open {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 24px;
        width: 100%;
    }
    
    .nav-link {
        font-size: 18px;
        display: block;
        width: 100%;
    }
    
    .social-nav {
        display: none; /* Escondido no mobile, linkado no rodapé */
    }
    
    .section-padding {
        padding: 70px 0;
    }
    
    .section-title {
        font-size: 30px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .team-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 30px;
    }
    
    .team-avatar-img {
        height: 100px;
        width: 100px;
        margin-bottom: 10px;
    }
    
    .team-quote {
        border-left: none;
        border-top: 3px solid var(--accent-orange);
        padding-left: 0;
        padding-top: 12px;
        display: inline-block;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .chatbot-widget {
        bottom: 15px;
        right: 15px;
    }
    
    .chat-window {
        width: calc(100vw - 30px);
        height: 480px;
    }
}

/* Celulares (Até 480px) */
@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-desc {
        font-size: 16px;
    }
    
    .btn {
        width: 100%;
    }
    
    .simulator-card {
        padding: 20px;
    }
    
    .contact-form {
        padding: 24px;
    }
    
    .project-detail-title {
        font-size: 32px;
    }
    
    .chat-window {
        height: 450px;
    }
}