:root {
  /* Paleta de Cores (Pronta Solução) */
  --primary-blue: #0d6efd;
  --dark-blue: #1a237e;
  --hover-blue: #0b5ed7;
  --bg-light: #f8f9fa;
  --text-dark: #212529;
  --text-muted: #6c757d;
  --badge-green: #28a745;
  --whatsapp-green: #25d366;
  --border-color: #e9ecef;
  --input-border: #ced4da;
  --card-shadow: 0 4px 15px rgba(0,0,0,0.06);
}

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

/* Configuração Geral e Layout Base */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
  font-size: 1rem;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header Padrão */
.main-header {
  background-color: var(--dark-blue, #002b66);
  color: #ffffff;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

.main-header nav a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  margin-left: 15px;
}

/* Containers Centrais */
.container {
  max-width: 1100px;
  margin: 30px auto;
  padding: 0 15px;
  flex: 1;
}

/* Cards e Módulos da Interface */
.card {
  background: #ffffff;
  border-radius: 8px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
  border-top: 5px solid var(--primary-blue);
  padding: 24px;
  margin-bottom: 20px;
}

.card h2 {
  font-size: 2.1rem;
  color: var(--dark-blue);
  margin-bottom: 15px;
  font-weight: 700;
}

.card h3 {
  font-size: 1.5rem;
  color: var(--dark-blue);
  margin-bottom: 10px;
  font-weight: 600;
}

/* Formulários & Campos de Entrada */
.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 5px;
  color: var(--text-dark);
}

.form-control {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--input-border);
  border-radius: 6px;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.form-control:focus {
  border-color: var(--primary-blue);
}

/* Botões Estilizados */
.btn {
  display: inline-block;
  padding: 10px 20px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: background-color 0.2s;
}

.btn-primary {
  background-color: var(--primary-blue);
  color: #ffffff;
}

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

.btn-whatsapp {
  background-color: var(--whatsapp-green);
  color: #ffffff;
}

/* Badges de Status */
.badge-free {
  background-color: var(--badge-green);
  color: #ffffff;
  font-size: 0.8rem;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  font-weight: bold;
}

.badge-status {
  display: inline-block;
  white-space: nowrap;
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Rodapé */
.main-footer {
  background-color: #ffffff;
  border-top: 1px solid var(--border-color);
  padding: 20px 0;
  margin-top: 40px;
  text-align: center;
}

.main-footer p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ==========================================================================
   RESPONSIVIDADE E ADAPTAÇÃO PARA DISPOSITIVOS MÓVEIS (MOBILE-FIRST)
   ========================================================================== */

@media (max-width: 768px) {
  
  .container {
    width: 95% !important;
    padding: 10px !important;
    margin: 15px auto !important;
  }

  .card {
    padding: 15px !important;
    margin-bottom: 15px !important;
  }

  .card h2 {
    font-size: 1.75rem !important;
  }

  /* Ajusta elementos flexíveis para empilhar no mobile */
  form[style*="display: flex"],
  .card div[style*="display: flex"] {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 10px !important;
  }

  .btn {
    width: 100% !important;
    text-align: center !important;
    padding: 12px 14px !important;
    font-size: 0.95rem !important;
  }

  /* Converte a Tabela HTML de Agendamentos em Cards no Celular */
  table, thead, tbody, th, td, tr {
    display: block !important;
  }

  /* Oculta o cabeçalho original da tabela */
  thead tr {
    position: absolute !important;
    top: -9999px !important;
    left: -9999px !important;
  }

  /* Linha da tabela vira um Card único */
  tr {
    background: #ffffff !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 8px !important;
    margin-bottom: 15px !important;
    padding: 12px !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05) !important;
  }

  /* Ajusta cada célula dentro do card mobile */
  td {
    border: none !important;
    border-bottom: 1px solid #f0f0f0 !important;
    position: relative !important;
    padding: 8px 0 !important;
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    font-size: 0.9rem !important;
    white-space: normal !important;
  }

  td:last-child {
    border-bottom: none !important;
    margin-top: 8px !important;
    gap: 8px !important;
  }

  td:last-child button,
  td:last-child a {
    flex: 1 !important;
    text-align: center !important;
  }

  /* Ajusta a Modal de Confirmação em telas de celular */
  #modalAcao .card {
    width: 95% !important;
    max-height: 90vh !important;
    overflow-y: auto !important;
  }
}