:root {
    --bg: #181C1F;
    --card: #23272B;
    --text: #F6F7FB;
    --muted: #AAAAAA;
    --border: #353D4C;
    --primary: #2E7D6B;
    --accent: #D6A85A;
    --radius: 18px;
  }
  
  body, body.dark-mode {
    background: linear-gradient(135deg, var(--bg) 60%, var(--primary) 123%);
    color: var(--text);
    font-family: 'Inter', 'Poppins', sans-serif;
  }
  
  .container {
    width: 100%;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: 12px;
    padding-right: 12px;
  }
  @media (min-width: 1024px) {
    .container {
      max-width: 1024px;
    }
  }
  
  .card-soft {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: 0 16px 44px rgba(15,23,42,.12);
    border: 1px solid var(--border);
    margin-bottom: 1.5rem;
  }
  
  /* Margem interna especial para a janela de mensagens */
  .message-card {
    padding: 18px 16px;
  }
  @media (min-width: 600px) {
    .message-card {
      padding: 26px 32px;
    }
  }
  
  .message-title {
    font-size: 1.15rem;
    font-family: 'Poppins', 'Inter', sans-serif;
    font-weight: 700;
    margin-bottom: 8px;
  }
  @media (min-width: 600px) {
    .message-title {
      font-size: 1.35rem;
    }
  }
  
  .section-title {
    font-size: 1.15rem;
    font-family: 'Poppins', 'Inter', sans-serif;
    font-weight: 700;
    margin-bottom: 10px;
  }
  
  .category-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
  }
  @media (min-width: 600px) {
    .category-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  @media (min-width: 992px) {
    .category-grid {
      grid-template-columns: repeat(4, 1fr);
    }
  }
  
  .category-card {
    padding: 14px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: rgba(35, 39, 43, 0.93);
    transition: box-shadow 0.2s;
  }
  .category-card label {
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
  }
  
  .btn-primary {
    background: linear-gradient(180deg, var(--primary), #174239);
    border: none;
    border-radius: 14px;
    box-shadow: 0 10px 22px rgba(46,125,107,.13);
    color: #fff;
  }
  .btn-primary:hover {
    filter: brightness(1.12);
  }
  
  .btn-ghost {
    background: rgba(60,68,78,.2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 14px;
  }
  
  footer {
    color: var(--muted);
    border-top: 1px solid var(--border);
    padding: 22px 0;
    margin-top: 28px;
  }
  
  .toast-area {
    position: fixed;
    bottom: 18px;
    right: 18px;
    z-index: 1055;
    width: min(360px, calc(100% - 36px));
  }