:root {
      --accent: #0a84ff; /* Azul estilo Apple */
      --text: #111;
      --muted: #6e6e73;
      --bg: #fff;
      --card: #f5f5f7;
      --radius: 20px;
      --shadow: 0 8px 25px rgba(0,0,0,0.08);
    }

    body {
      scroll-behavior: smooth;
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      background-color: var(--bg);
      color: var(--text);
    }
    .navbar {
      background: rgba(255, 255, 255, 0.8);
      backdrop-filter: blur(15px);
      transition: all 0.3s ease;
    }
    .navbar-brand img {
      height: 48px;
      transition: height 0.2s ease;
    }
    .navbar .navbar-item {
      font-weight: 500;
      padding-left: 0.75rem;
      padding-right: 0.75rem;
    }
    .navbar .navbar-item:hover {
      color: var(--accent);
    }
    .navbar-light .navbar-toggler {
      border-color: rgba(0, 0, 0, 0.12);
    }
    .navbar-light .navbar-toggler-icon {
      background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='rgba(0, 0, 0, 0.7)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
    }
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    overflow: hidden;
    background: radial-gradient(1200px 600px at 50% -200px, rgba(255,255,255,0.15), rgba(255,255,255,0) 60%),
                linear-gradient(180deg, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.25) 40%, rgba(0,0,0,0) 100%);
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    will-change: transform;
    transition: transform 0.6s ease-out;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(0,0,0,0.65) 0%, rgba(0,0,0,0.35) 45%, rgba(0,0,0,0.2) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    color: #fff;
    padding: 0 20px;
    max-width: 980px;
    margin: 0 auto;
    will-change: transform, opacity;
    transition: transform 0.25s ease-out, opacity 0.25s ease-out;
}

.hero h1 {
      font-size: clamp(2.2rem, 5vw, 4rem);
      font-weight: 700;
      letter-spacing: -0.03em;
      margin-bottom: 20px;
}

.hero p {
      font-size: clamp(1rem, 1.6vw, 1.2rem);
      color: rgba(255,255,255,0.85);
      margin-bottom: 32px;
}

.hero .hero-subtitle {
  font-size: clamp(0.95rem, 1.4vw, 1.1rem);
  color: rgba(255,255,255,0.78);
  margin-bottom: 12px;
}

.btn-custom {
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s;
}
.btn-dark:hover {
      background: #333;
}
/* Botão com vibe mais Apple */
.hero .button.is-dark {
  box-shadow: 0 10px 20px rgba(0,0,0,0.25);
}
.hero .button.is-dark:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(0,0,0,0.28);
}
    section { padding: clamp(60px, 8vw, 100px) 0; }
    .section-title {
      font-weight: 700;
      font-size: clamp(1.5rem, 3.2vw, 2.25rem);
      letter-spacing: -0.01em;
      margin-bottom: clamp(30px, 6vw, 60px);
      text-align: center;
    }
    .card {
      border: none;
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      transition: transform 0.3s;
      background-color: var(--card);
    }
    .card:hover {
      transform: translateY(-10px);
    }
    footer {
        background-color: #000 !important;
        font-size: 0.9rem;
        color: #bbb;
      }

      footer h6 {
        font-size: 0.85rem;
        letter-spacing: 0.5px;
        margin-bottom: 1rem;
      }

      footer a {
        color: #bbb;
      }

      footer a:hover {
        text-decoration: underline;
        color: #fff;
      }

      .footer-link {
        color: #f8f9fa;
        text-decoration: none;
        position: relative;
        transition: color 0.3s ease;
      }

      .footer-link::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: -3px;
        width: 0%;
        height: 2px;
        background-color: #f8f9fa;
        transition: width 0.3s ease;
      }

      .footer-link:hover {
        color: #ffffff;
      }

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

    .icon-flaticon {
      width: 60px;   /* tamanho padrão */
      height: auto;
      display: block;
      margin: 0 auto; /* centraliza dentro do card */
    }

    /* Responsivo específico */
    @media (max-width: 576px) {
      .hero { height: 80vh; }
      .navbar-brand img { height: 36px; }
      .btn-custom { padding: 10px 22px; }
    }

    /* Páginas escuras (EcoSys) */
    .dark-page {
      background-color: #000;
      color: #fff;
    }
    .dark-page .navbar {
      background: rgba(255, 255, 255, 0.14); /* branco fosco sobre fundo preto */
      backdrop-filter: blur(18px) saturate(120%);
      -webkit-backdrop-filter: blur(18px) saturate(120%);
      border-bottom: 1px solid rgba(255, 255, 255, 0.16);
    }
    .dark-page .navbar .navbar-item {
      color: rgba(255, 255, 255, 0.92); /* texto claro nas páginas escuras */
    }
    .dark-page .navbar .navbar-item:hover {
      color: var(--accent);
    }
    .dark-page .navbar-burger span {
      background-color: rgba(255, 255, 255, 0.92);
    }
    .dark-page .section-title, .dark-page h1, .dark-page h2, .dark-page h3, .dark-page h4, .dark-page h5 {
      color: #fff;
    }
    .dark-page .card, .dark-page .box {
      background-color: #0c0c0c;
      color: #ddd;
      box-shadow: 0 10px 30px rgba(0,0,0,0.35);
    }
    .dark-page .hero-overlay {
      background: linear-gradient(180deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.55) 45%, rgba(0,0,0,0.35) 100%);
    }
    .dark-page .button.is-dark {
      background-color: #111;
      border-color: #111;
      color: #fff;
    }

    /* Revelações ao rolar (scroll reveal) */
    .reveal {
      opacity: 0;
      transform: translateY(24px) scale(0.98);
      transition: transform 600ms ease, opacity 600ms ease;
      will-change: transform, opacity;
    }
    .reveal.is-visible {
      opacity: 1;
      transform: translateY(0) scale(1);
    }
    .reveal.delay-1 { transition-delay: 80ms; }
    .reveal.delay-2 { transition-delay: 160ms; }
    .reveal.delay-3 { transition-delay: 240ms; }
    .reveal.delay-4 { transition-delay: 320ms; }
    .reveal.delay-5 { transition-delay: 400ms; }

    /* Espaçamentos mais arejados */
    .py-5 { padding-top: 3rem !important; padding-bottom: 3rem !important; }
    .my-5 { margin-top: 3rem !important; margin-bottom: 3rem !important; }

    /* Texto suave */
    .text-muted { color: var(--muted) !important; }

    /* Blocos de features (imagem + texto alternados) */
    .feature-block {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: 3rem;
      align-items: center;
      margin: 4.5rem 0;
    }
    .feature-block .feature-image {
      position: relative;
    }
    .feature-block .image-frame {
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 14px 36px rgba(0, 0, 0, 0.28);
      border: 1px solid rgba(0, 0, 0, 0.08);
      max-width: 520px;
      margin: 0 auto;
    }
    .feature-block .image-frame img {
      width: 100%;
      height: auto;
      display: block;
    }
    .dark-page .feature-block .image-frame {
      border-color: rgba(255, 255, 255, 0.1);
      box-shadow: 0 16px 48px rgba(0, 0, 0, 0.55);
    }
    .feature-block .feature-content h3 {
      font-weight: 700;
      letter-spacing: -0.02em;
      margin-bottom: 0.5rem;
    }
    .feature-block .feature-content .kicker {
      text-transform: uppercase;
      letter-spacing: 0.12em;
      font-size: 0.8rem;
      color: rgba(0, 0, 0, 0.55);
      margin-bottom: 0.5rem;
    }
    .dark-page .feature-block .feature-content .kicker {
      color: rgba(255, 255, 255, 0.55);
    }
    .feature-block .feature-content p {
      font-size: 1.05rem;
      line-height: 1.7;
    }
    .dark-page .feature-block .feature-content p {
      color: rgba(255, 255, 255, 0.86);
    }

    /* Alternância esquerda/direita */
    .feature-block.image-left .feature-image { order: 1; justify-self: start; }
    .feature-block.image-left .feature-content { order: 2; }
    .feature-block.image-right .feature-image { order: 2; justify-self: end; }
    .feature-block.image-right .feature-content { order: 1; }

    .feature-block .feature-content { max-width: 620px; }

    /* Responsivo */
    @media (max-width: 768px) {
      .feature-block {
        grid-template-columns: 1fr;
        gap: 1.75rem;
        margin: 3rem 0;
      }
      .feature-block .feature-image,
      .feature-block .feature-content {
        order: unset !important;
      }
      .feature-block .feature-content {
        text-align: left;
      }
    }

    /* Títulos de seção mais limpos para features */
    .section-title {
      font-weight: 800;
      letter-spacing: -0.03em;
    }

    /* Botões no tom Apple */
    .btn-dark { background-color: #111; border-color: #111; }
    .btn-primary { background-color: var(--accent); border-color: var(--accent); }