:root {
      --primary: #6B8E23; /* OliveDrab */
      --primary-dark: #556B2F; /* DarkOliveGreen */
      --secondary: #F5F5DC; /* Beige */
      --nav-bg: #F6F3EE; /* Cor do fundo do logo */
      --accent: #BDB76B; /* DarkKhaki */
      --text: #36454F; /* Charcoal */
      --text-light: #808080; /* Gray */
      --white: #ffffff;
      --gradient: linear-gradient(135deg, #8F9779, #556B2F);
      --shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
      --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.12);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'Inter', sans-serif;
      background-color: var(--white);
      color: var(--text);
      line-height: 1.7;
      overflow-x: hidden;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 2rem;
    }

    /* Header Moderno */
    .hero {
      background: url('assets/pexels-sora-shimazaki-5669602.jpg') no-repeat center center/cover;
      min-height: 100vh;
      display: flex;
      align-items: center;
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(0, 0, 0, 0.6);
      z-index: 1;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      color: var(--white);
    }

    .hero h1 {
      font-size: clamp(2.5rem, 5vw, 4rem);
      font-weight: 700;
      margin-bottom: 1rem;
      animation: fadeInUp 1s ease;
    }

    .hero .tagline {
      font-size: clamp(1.2rem, 2.5vw, 1.5rem);
      font-weight: 300;
      margin-bottom: 2rem;
      opacity: 0.9;
      animation: fadeInUp 1s ease 0.2s both;
    }

    .hero .description {
      font-size: 1.1rem;
      max-width: 650px;
      margin: 0 auto 3rem;
      opacity: 0.8;
      animation: fadeInUp 1s ease 0.4s both;
    }

    .cta-buttons {
      display: flex;
      gap: 1rem;
      justify-content: center;
      flex-wrap: wrap;
      animation: fadeInUp 1s ease 0.6s both;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 1rem 2rem;
      border-radius: 50px;
      text-decoration: none;
      font-weight: 600;
      transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
      border: none;
      cursor: pointer;
      font-size: 1rem;
      position: relative;
      overflow: hidden;
    }

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

    .btn-primary:hover {
      transform: translateY(-3px) scale(1.05);
      box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    }

    /* Navegação */
    .nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      background: var(--nav-bg);
      z-index: 1000;
      padding: 1rem 0;
      transition: box-shadow 0.3s ease;
    }

    .nav.scrolled {
      box-shadow: var(--shadow);
    }

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

    .mobile-nav-toggle {
        display: none;
    }

    .nav-logo {
      font-weight: 700;
      font-size: 1.5rem;
    }

    .nav-logo a {
        text-decoration: none;
        color: var(--primary-dark);
        display: flex;
        align-items: center;
        gap: 0.75rem;
    }

    .nav-logo img {
        height: 40px;
    }

    .footer-logo img {
        height: 60px;
        width: auto;
        vertical-align: middle;
        filter: brightness(0) invert(1);
    }

    .nav-links {
      display: flex;
      gap: 2rem;
      list-style: none;
    }

    .nav-links a {
      text-decoration: none;
      color: var(--text);
      font-weight: 500;
      transition: color 0.3s ease;
    }

    .nav-links a:hover {
      color: var(--primary);
    }

    /* Seções */
    .section {
      padding: 6rem 0;
    }

    .section-title {
      font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 700;
      text-align: center;
      margin-bottom: 1rem;
      color: var(--primary-dark);
    }

    .section-subtitle {
      text-align: center;
      color: var(--text-light);
      font-size: 1.2rem;
      margin-bottom: 4rem;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Serviços com Cards Expansíveis */
    .services-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 2rem;
        margin-top: 3rem;
    }
    .service-card {
        background-color: var(--white);
        border: 1px solid #e2e8f0;
        border-radius: 20px;
        padding: 2rem;
        box-shadow: var(--shadow);
        transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        display: flex;
        flex-direction: column;
        cursor: pointer;
        position: relative;
        overflow: hidden;
    }
    .service-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: var(--gradient);
        transform: scaleX(0);
        transition: transform 0.3s ease;
    }
    .service-card:hover::before {
        transform: scaleX(1);
    }
    .service-card:hover {
        transform: translateY(-8px) scale(1.02);
        box-shadow: var(--shadow-lg);
        border-color: var(--primary);
    }
    .service-card-header {
        display: flex;
        align-items: center;
        gap: 1.5rem;
        margin-bottom: 1rem;
    }
    .service-icon {
        width: 60px;
        height: 60px;
        background: var(--gradient);
        border-radius: 15px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--white);
        font-size: 1.5rem;
        flex-shrink: 0;
        transition: all 0.3s ease;
        position: relative;
        overflow: hidden;
    }
    .service-card:hover .service-icon {
        transform: scale(1.1) rotate(5deg);
    }
    .service-icon::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(45deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0) 100%);
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    .service-card:hover .service-icon::before {
        opacity: 1;
    }
    .service-card h3 {
        font-size: 1.35rem;
        font-weight: 600;
        color: var(--text);
    }
    .service-card-intro {
        color: var(--text-light);
        margin-bottom: 1.5rem;
        flex-grow: 1;
    }
    .card-toggle-btn {
        background: none;
        border: 2px solid var(--primary);
        color: var(--primary);
        padding: 0.75rem 1.5rem;
        border-radius: 50px;
        cursor: pointer;
        font-weight: 600;
        align-self: flex-start;
        transition: all 0.3s ease;
        font-size: 0.95rem;
        position: relative;
        overflow: hidden;
    }
    .card-toggle-btn::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: var(--primary);
        transition: left 0.3s ease;
        z-index: -1;
    }
    .card-toggle-btn:hover::before {
        left: 0;
    }
    .card-toggle-btn:hover {
        color: var(--white);
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    }

    /* Modal de Serviços em Tela Cheia */
    .service-modal-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.9);
        z-index: 1002;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        backdrop-filter: blur(8px);
    }

    .service-modal-overlay.visible {
        opacity: 1;
        visibility: visible;
    }

    .service-modal-content {
        background: var(--white);
        width: 95%;
        max-width: 900px;
        max-height: 90vh;
        border-radius: 20px;
        position: relative;
        transform: scale(0.8) translateY(50px);
        transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        overflow: hidden;
        box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    }

    .service-modal-overlay.visible .service-modal-content {
        transform: scale(1) translateY(0);
    }

    .service-modal-header {
        background: var(--gradient);
        color: var(--white);
        padding: 2rem;
        position: relative;
        overflow: hidden;
    }

    .service-modal-header::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(45deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 100%);
        pointer-events: none;
    }

    .service-modal-close {
        position: absolute;
        top: 1rem;
        right: 1rem;
        background: rgba(255, 255, 255, 0.3);
        border: none;
        color: var(--white);
        width: 48px;
        height: 48px;
        border-radius: 50%;
        cursor: pointer;
        font-size: 1.5rem;
        transition: all 0.3s ease;
        backdrop-filter: blur(10px);
        z-index: 1010;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .service-modal-close:hover {
        background: rgba(255, 255, 255, 0.3);
        transform: scale(1.1) rotate(90deg);
    }

    .service-modal-title {
        font-size: 2rem;
        font-weight: 700;
        margin-bottom: 0.5rem;
        display: flex;
        align-items: center;
        gap: 1rem;
        position: relative;
        z-index: 1;
    }

    .service-modal-subtitle {
        font-size: 1.1rem;
        opacity: 0.9;
        font-weight: 300;
        position: relative;
        z-index: 1;
    }

    .service-modal-body {
        padding: 2rem;
        max-height: 60vh;
        overflow-y: auto;
        background: linear-gradient(180deg, #fafafa 0%, #ffffff 100%);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .service-modal-body h4 {
        color: var(--primary-dark);
        font-size: 1.3rem;
        font-weight: 600;
        margin: 1.5rem 0 1rem;
        position: relative;
        padding-left: 1rem;
    }

    .service-modal-body h4::before {
        content: '';
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 4px;
        height: 20px;
        background: var(--primary);
        border-radius: 2px;
    }

    .service-modal-body h4:first-child {
        margin-top: 0;
    }

    .service-modal-body p {
        color: var(--text);
        line-height: 1.8;
        margin-bottom: 1rem;
        font-size: 1.05rem;
    }

    .service-modal-body ul {
        list-style-type: none;
        padding-left: 0;
        margin: 1rem 0;
    }

    .service-modal-body ul li {
        margin-bottom: 0.75rem;
        padding-left: 1.5rem;
        position: relative;
        color: var(--text);
        line-height: 1.6;
        transition: all 0.3s ease;
    }

    .service-modal-body ul li:hover {
        transform: translateX(5px);
        color: var(--primary-dark);
    }

    .service-modal-body ul li::before {
        content: '\2714';
        color: var(--primary);
        position: absolute;
        left: 0;
        font-weight: bold;
        transition: all 0.3s ease;
    }

    .service-modal-body ul li:hover::before {
        transform: scale(1.2);
    }

    .service-modal-footer {
        padding: 1.5rem 2rem;
        background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
        border-top: 1px solid #e2e8f0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        position: relative;
    }

    .service-nav-btn {
        background: var(--primary);
        color: var(--white);
        border: none;
        padding: 0.75rem 1.5rem;
        border-radius: 50px;
        cursor: pointer;
        font-weight: 600;
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        gap: 0.5rem;
        font-size: 0.95rem;
        position: relative;
        overflow: hidden;
    }

    .service-nav-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;
    }

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

    .service-nav-btn:hover {
        background: var(--primary-dark);
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    }

    .service-nav-btn:disabled {
        background: #ccc;
        cursor: not-allowed;
        transform: none;
        box-shadow: none;
    }

    .service-nav-btn:disabled::before {
        display: none;
    }

    .service-counter {
        color: var(--text-light);
        font-size: 0.9rem;
        font-weight: 500;
        background: rgba(0,0,0,0.05);
        padding: 0.5rem 1rem;
        border-radius: 20px;
        position: relative;
    }

    /* Progress Bar */
    .service-progress {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: rgba(255,255,255,0.2);
        overflow: hidden;
    }

    .service-progress-bar {
        height: 100%;
        background: var(--white);
        transition: width 0.3s ease;
        border-radius: 0 2px 2px 0;
    }

    /* Scrollbar personalizada para o modal */
    .service-modal-body::-webkit-scrollbar {
        width: 8px;
    }

    .service-modal-body::-webkit-scrollbar-track {
        background: #f1f1f1;
        border-radius: 4px;
    }

    .service-modal-body::-webkit-scrollbar-thumb {
        background: var(--primary);
        border-radius: 4px;
        transition: background 0.3s ease;
    }

    .service-modal-body::-webkit-scrollbar-thumb:hover {
        background: var(--primary-dark);
    }

    /* Seção Sobre */
    .about-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: center;
      margin-top: 3rem;
    }

    .about-image {
      width: 100%;
      height: auto;
      border-radius: 20px;
      box-shadow: var(--shadow-lg);
    }

    .about-text h3 {
      font-size: 2rem;
      font-weight: 600;
      margin-bottom: 1.5rem;
      color: var(--text);
    }

    .about-text p {
      color: var(--text-light);
      margin-bottom: 1.5rem;
      font-size: 1.1rem;
    }

    .about-stats {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 2rem;
      margin-top: 2rem;
    }

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

    .stat-number {
      font-size: 2.5rem;
      font-weight: 700;
      color: var(--primary);
      display: block;
    }

    .stat-label {
      color: var(--text-light);
      font-size: 0.9rem;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    /* Seção Diferenciais */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 2rem;
      margin-top: 3rem;
    }

    .feature-item {
      text-align: center;
      padding: 2rem;
      border: 1px solid transparent;
      border-radius: 20px;
      transition: all 0.3s ease;
    }

    .feature-item:hover {
        border-color: #e2e8f0;
        background: var(--white);
        transform: translateY(-5px);
        box-shadow: var(--shadow);
    }

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

    .feature-item h4 {
      font-size: 1.3rem;
      font-weight: 600;
      margin-bottom: 1rem;
      color: var(--text);
      white-space: nowrap;
    }

    .feature-item p {
      color: var(--text-light);
    }

    /* Seção Contato */
    #contato .container {
      background: url('assets/pexels-pavel-danilyuk-8111818.jpg') no-repeat center center/cover;
      border-radius: 20px;
      padding: 4rem 2rem;
      position: relative;
    }

    #contato .container::before {
        content: '';
        position: absolute;
        inset: 0;
        background: rgba(255,255,255, 0.9);
        border-radius: 20px;
    }

    #contato .section-title, #contato .section-subtitle {
        color: var(--text);
        text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        position: relative;
        z-index: 2;
    }

    .contact-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      margin-top: 3rem;
      position: relative;
      z-index: 2;
    }

    .contact-info h3 {
      font-size: 1.5rem;
      font-weight: 600;
      margin-bottom: 2rem;
      color: var(--text);
    }

    .contact-item {
      display: flex;
      align-items: center;
      gap: 1rem;
      margin-bottom: 1.5rem;
    }

    .contact-item .email-link {
        cursor: pointer;
    }

    .contact-icon {
      width: 50px;
      height: 50px;
      background: var(--primary-dark);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--white);
      transition: background 0.3s ease;
    }

    .contact-icon:hover {
        background: var(--primary);
    }

    .contact-text h4 {
      font-weight: 600;
      margin-bottom: 0.25rem;
    }

    .contact-text p, .contact-text a {
      color: var(--text-light);
      text-decoration: none;
    }

    /* Modal */
    .modal-overlay {
      position: fixed;
      top: 0; left: 0; right: 0; bottom: 0;
      background: rgba(0,0,0,0.7);
      z-index: 1001;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
    }

    .modal-overlay.visible {
      opacity: 1;
      visibility: visible;
    }

    .modal-content {
      background: var(--white);
      padding: 2.5rem;
      border-radius: 20px;
      box-shadow: var(--shadow-lg);
      width: 90%;
      max-width: 500px;
      position: relative;
      transform: translateY(20px);
      transition: transform 0.3s ease;
    }

    .modal-overlay.visible .modal-content {
        transform: translateY(0);
    }

    .modal-close {
      position: absolute;
      top: 0.5rem;
      right: 0.5rem;
      font-size: 2rem;
      color: var(--text);
      cursor: pointer;
      border: none;
      background: rgba(0,0,0,0.05);
      width: 44px;
      height: 44px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 1010;
      transition: background 0.3s;
    }
    .modal-close:hover {
      background: rgba(0,0,0,0.1);
    }

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

    .form-group label {
      display: block;
      margin-bottom: 0.5rem;
      font-weight: 500;
      color: var(--text);
    }

    .form-group input,
    .form-group textarea {
      width: 100%;
      padding: 1rem;
      border: 2px solid #e2e8f0;
      border-radius: 12px;
      font-size: 1rem;
      transition: border-color 0.3s ease;
      font-family: inherit;
    }

    .form-group input:focus,
    .form-group textarea:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(107, 142, 35, 0.2);
    }

    /* Footer */
    .footer {
      background: var(--text);
      color: var(--white);
      text-align: center;
      padding: 4rem 2rem;
    }

    .footer-content {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 2rem;
    }

    .footer-logo {
      margin-bottom: 1rem;
    }

    .footer-logo a {
        display: inline-block;
        color: var(--white);
        text-decoration: none;
        font-size: 1.5rem;
        font-weight: 700;
        transition: transform 0.3s ease, color 0.3s ease;
    }

    .footer-logo a:hover {
        transform: scale(1.05);
        color: var(--accent);
    }

    .footer-logo img {
        height: 60px;
        transition: transform 0.3s ease;
    }

    .footer-logo img:hover {
        transform: scale(1.05);
    }

    .footer-links {
      display: flex;
      gap: 2.5rem;
      list-style: none;
      margin-bottom: 1rem;
      padding: 0;
    }

    .footer-links a {
      color: var(--white);
      text-decoration: none;
      opacity: 0.8;
      transition: opacity 0.3s ease, color 0.3s ease;
      position: relative;
      padding-bottom: 5px;
    }

    .footer-links a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 0;
        height: 2px;
        background-color: var(--accent);
        transition: width 0.4s ease;
    }

    .footer-links a:hover::after {
        width: 100%;
    }

    .footer-links a:hover {
      opacity: 1;
    }

    .footer-social {
        display: flex;
        gap: 1.5rem;
        margin-bottom: 1rem;
    }

    .footer-social a {
        color: var(--white);
        font-size: 1.5rem;
        opacity: 0.8;
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .footer-social a:hover {
        opacity: 1;
        transform: translateY(-3px) scale(1.1);
    }

    .footer-copyright {
        opacity: 0.7;
        font-size: 0.9rem;
    }

    /* Toast Notification */
    .toast {
        position: fixed;
        bottom: 2rem;
        left: 50%;
        transform: translateX(-50%);
        background-color: var(--primary-dark);
        color: var(--white);
        padding: 1rem 2rem;
        border-radius: 50px;
        box-shadow: var(--shadow-lg);
        z-index: 1002;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, transform 0.3s ease;
    }
    .toast.show {
        opacity: 1;
        visibility: visible;
        transform: translate(-50%, -10px);
    }

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

    /* Responsividade */
    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }

      .mobile-nav-toggle {
        display: block;
        background: none;
        border: none;
        font-size: 1.8rem;
        color: var(--text);
        cursor: pointer;
        z-index: 1001;
      }

      .about-content,
      .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
      }

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

      .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
      }

      .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      }

      .footer-content {
        flex-direction: column;
        text-align: center;
      }

      .service-modal-content {
        width: 98%;
        max-height: 88vh;
        margin: 0 1rem;
        margin-top: max(1rem, env(safe-area-inset-top, 1rem));
        border-radius: 16px;
      }

      .service-modal-header {
        padding: 1.5rem;
        padding-top: 2rem;
      }

      .service-modal-title {
        font-size: 1.5rem;
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
      }

      .service-modal-body {
        padding: 1.5rem;
        max-height: 50vh;
      }

      .service-modal-footer {
        padding: 1rem 1.5rem;
        flex-direction: column;
        gap: 1rem;
      }

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

      .services-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
      }
    }

    /* Mobile Nav Menu */
    .mobile-nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 350px;
        height: 100vh;
        background: var(--nav-bg);
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        z-index: 1000;
        transition: right 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        padding: 6rem 2rem 2rem;
        display: flex;
        flex-direction: column;
    }
    .mobile-nav-menu.open {
        right: 0;
    }
    .mobile-nav-close {
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
        background: none;
        border: none;
        font-size: 2.5rem;
        color: var(--text);
        cursor: pointer;
    }
    .mobile-nav-menu ul {
        list-style: none;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
    }
    .mobile-nav-menu ul a {
        text-decoration: none;
        color: var(--text);
        font-size: 1.3rem;
        font-weight: 500;
        transition: color 0.3s ease;
    }
    .mobile-nav-menu ul a:hover {
        color: var(--primary);
    }
    body.mobile-nav-active {
        overflow: hidden;
    }

    /* Scroll suave e botão voltar ao topo */
    .back-to-top {
      position: fixed;
      bottom: 2rem;
      right: 2rem;
      width: 50px;
      height: 50px;
      background: var(--gradient);
      border: none;
      border-radius: 50%;
      color: var(--white);
      font-size: 1.2rem;
      cursor: pointer;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
      z-index: 1000;
      box-shadow: var(--shadow);
    }

    .back-to-top.visible {
      opacity: 1;
      visibility: visible;
    }

    .back-to-top:hover {
      transform: translateY(-3px) scale(1.1);
      box-shadow: var(--shadow-lg);
    }

    /* Chat Widget */
    .chat-toggle {
      position: fixed;
      bottom: 2rem;
      right: 6rem;
      width: 60px;
      height: 60px;
      background: var(--primary);
      border: none;
      border-radius: 50%;
      color: var(--white);
      font-size: 1.5rem;
      cursor: pointer;
      z-index: 1001;
      box-shadow: var(--shadow-lg);
      transition: all 0.3s ease;
    }
    .chat-toggle:hover {
      transform: scale(1.1);
      background: var(--primary-dark);
    }
    .chat-window {
      display: none;
      position: fixed;
      bottom: 6rem;
      right: 2rem;
      width: 380px;
      max-height: 500px;
      background: var(--white);
      border-radius: 16px;
      box-shadow: var(--shadow-lg);
      z-index: 1002;
      flex-direction: column;
      overflow: hidden;
    }
    .chat-window.open {
      display: flex;
    }
    .chat-header {
      background: var(--primary);
      color: var(--white);
      padding: 1rem 1.2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .chat-header h4 { margin: 0; font-size: 0.95rem; }
    .chat-header button {
      background: none;
      border: none;
      color: var(--white);
      font-size: 1.3rem;
      cursor: pointer;
    }
    .chat-messages {
      flex: 1;
      overflow-y: auto;
      padding: 1rem;
      max-height: 320px;
      display: flex;
      flex-direction: column;
      gap: 0.8rem;
    }
    .chat-msg {
      max-width: 85%;
      padding: 0.7rem 1rem;
      border-radius: 12px;
      font-size: 0.9rem;
      line-height: 1.5;
      word-wrap: break-word;
    }
    .chat-msg.bot {
      background: var(--secondary);
      color: var(--text);
      align-self: flex-start;
      border-bottom-left-radius: 4px;
    }
    .chat-msg.user {
      background: var(--primary);
      color: var(--white);
      align-self: flex-end;
      border-bottom-right-radius: 4px;
    }
    .chat-msg a {
      color: inherit;
      font-weight: 600;
      text-decoration: underline;
    }
    .chat-input-area {
      display: flex;
      border-top: 1px solid #eee;
      padding: 0.6rem;
      gap: 0.5rem;
    }
    .chat-input-area input {
      flex: 1;
      border: 1px solid #ddd;
      border-radius: 20px;
      padding: 0.6rem 1rem;
      font-size: 0.9rem;
      outline: none;
    }
    .chat-input-area input:focus {
      border-color: var(--primary);
    }
    .chat-input-area button {
      background: var(--primary);
      color: var(--white);
      border: none;
      border-radius: 50%;
      width: 38px;
      height: 38px;
      cursor: pointer;
      font-size: 1rem;
      transition: background 0.3s;
    }
    .chat-input-area button:hover {
      background: var(--primary-dark);
    }
    .chat-typing {
      align-self: flex-start;
      color: var(--text-light);
      font-size: 0.85rem;
      font-style: italic;
    }
    @media (max-width: 768px) {
      .chat-window {
        width: calc(100% - 2rem);
        right: 1rem;
        bottom: 5.5rem;
        max-height: 60vh;
      }
      .chat-toggle {
        right: 1rem;
        bottom: 1rem;
        width: 55px;
        height: 55px;
      }
      .back-to-top { right: 5rem; bottom: 1rem; }
    }