* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: #0f172a;
  color: #e2e8f0;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
}

header {
  width: 100%;
  text-align: center;
  padding: 20px;
  background: linear-gradient(90deg, #0ea5e9, #1e40af);
  border-radius: 12px;
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

header h1 {
  color: white;
  font-size: 1.8rem;
}

.crm-container {
  width: 100%;
  max-width: 900px;
  background: #1e293b;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.5);
}

.form-section {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 15px;
}

input {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 6px;
  background: #334155;
  color: #f1f5f9;
}

input:focus {
  outline: 2px solid #0ea5e9;
}

.btn-container {
  text-align: center;
  margin-bottom: 20px;
}

.btn-container button {
  background: #0ea5e9;
  border: none;
  padding: 12px 20px;
  border-radius: 8px;
  color: white;
  cursor: pointer;
  font-size: 1rem;
  font-weight: bold;
  transition: 0.3s;
}

.btn-container button:hover {
  background: #0284c7;
}

.search-container {
  margin-bottom: 15px;
}

#pesquisa {
  width: 100%;
  padding: 10px;
  border-radius: 6px;
  border: none;
  background: #334155;
  color: #f1f5f9;
}

#contador {
  margin-bottom: 10px;
  font-weight: bold;
  color: #38bdf8;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}

th, td {
  padding: 12px;
  text-align: left;
}

th {
  background: #0f172a;
  color: #38bdf8;
  cursor: pointer;
}

tr:nth-child(even) {
  background: #334155;
}

tr:nth-child(odd) {
  background: #1e293b;
}

.action-btn {
  border: none;
  padding: 6px 12px;
  border-radius: 6px;
  color: white;
  cursor: pointer;
  transition: 0.3s;
  margin-right: 5px;
}

.edit-btn {
  background: #22c55e;
}
.edit-btn:hover {
  background: #15803d;
}

.delete-btn {
  background: #ef4444;
}
.delete-btn:hover {
  background: #b91c1c;
}

/* ======= RESPONSIVIDADE ======= */
@media (max-width: 768px) {
  .form-section {
    flex-direction: column;
  }

  table, thead, tbody, th, td, tr {
    display: block;
  }

  thead tr {
    display: none;
  }

  tr {
    margin-bottom: 15px;
    border-bottom: 2px solid #334155;
    padding-bottom: 10px;
  }

  td {
    padding: 8px;
    text-align: right;
    position: relative;
  }

  td::before {
    content: attr(data-label);
    position: absolute;
    left: 0;
    width: 50%;
    padding-left: 15px;
    font-weight: bold;
    text-align: left;
    color: #38bdf8;
  }

  .action-btn {
    margin-top: 5px;
    display: block;
  }
}

@media (max-width: 480px) {
  header h1 {
    font-size: 1.5rem;
  }

  .btn-container button {
    width: 100%;
    font-size: 0.95rem;
  }

  input {
    font-size: 0.95rem;
  }
}