/* ==================== BASE STYLES ==================== */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

.invoice-table {
  width: 100%;
  margin: 20px auto;
  border-collapse: collapse;
}

.invoice-table td {
  border: 1px solid #ccc;
  padding: 8px;
}

.invoice-table input,
.invoice-table textarea {
  width: 100%;
  border: none;
  outline: none;
  font-family: inherit;
}

.dynamic-table {
  font-size: 12px;
  width: 100%;
  overflow-x: auto;
}

.dynamic-table th,
.dynamic-table td {
  padding: 4px;
  white-space: nowrap;
}

.dynamic-table input {
  font-size: 12px;
  padding: 2px 4px;
  height: auto;
  min-width: 100px;
  width: 100%;
}

.dynamic-table button {
  font-size: 11px;
  padding: 2px 6px;
}

.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.container {
  padding: 0 12px;
}

h4, h5, h6 {
  word-wrap: break-word;
}

/* ==================== MOBILE STYLES (320px - 575px) ==================== */
@media (max-width: 575px) {
  .container {
    padding: 0 8px;
    margin-left: 0;
    margin-right: 0;
  }

  .invoice-table {
    margin: 15px 0;
  }

  .invoice-table td {
    display: block;
    width: 100%;
    padding: 6px 8px;
    border: 1px solid #ccc;
  }

  .invoice-table tr {
    display: block;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
  }

  .invoice-table td::before {
    content: attr(data-label);
    font-weight: bold;
    display: block;
    margin-bottom: 4px;
    font-size: 12px;
  }

  .invoice-table input,
  .invoice-table textarea {
    margin-top: 5px;
    font-size: 14px;
    padding: 8px;
  }

  .dynamic-table {
    font-size: 11px;
  }

  .dynamic-table th,
  .dynamic-table td {
    padding: 6px 4px;
    font-size: 11px;
  }

  .dynamic-table input {
    font-size: 11px;
    padding: 6px 4px;
    min-width: 60px;
  }

  .dynamic-table button {
    font-size: 10px;
    padding: 4px 6px;
    width: 100%;
    margin-top: 4px;
  }

/* 🔧 FORCE ACTION BUTTONS IN ONE LINE ON MOBILE */

  .action-buttons {
    flex-direction: row !important;
    flex-wrap: nowrap;
    overflow-x: auto;   /* allow scroll if too many buttons */
  }

  .action-buttons .btn {
    flex: 0 0 auto;
    width: auto;
    white-space: nowrap;
    font-size: 11px;
    padding: 6px 8px;
  }


  .d-flex {
    flex-direction: column;
  }

  .flex-sm-row {
    flex-direction: column !important;
  }

  .flex-fill {
    flex: 1 1 100%;
    min-width: 100%;
  }

  .form-select,
  .form-control {
    font-size: 14px;
    padding: 10px 8px;
  }

  .gap-2 {
    gap: 6px;
  }

  h4 {
    font-size: 18px;
    margin-bottom: 12px;
  }

  h5 {
    font-size: 16px;
  }

  .table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* ==================== SMALL DEVICES (576px - 767px) ==================== */
@media (min-width: 576px) and (max-width: 767px) {
  .container {
    padding: 0 10px;
  }

  .invoice-table {
    margin: 16px 0;
  }

  .invoice-table td {
    padding: 7px;
  }

  .invoice-table input,
  .invoice-table textarea {
    font-size: 13px;
    padding: 6px;
  }

  .dynamic-table {
    font-size: 12px;
  }

  .dynamic-table input {
    min-width: 80px;
    padding: 4px 6px;
  }

  .dynamic-table button {
    font-size: 11px;
    padding: 4px 8px;
  }

  .action-buttons {
    gap: 8px;
  }

  .action-buttons .btn {
    font-size: 12px;
    padding: 6px 10px;
    flex: 1;
  }

  h4 {
    font-size: 20px;
  }

  .form-select,
  .form-control {
    font-size: 13px;
  }
}

/* ==================== TABLETS (768px - 991px) ==================== */
@media (min-width: 768px) and (max-width: 991px) {
  .invoice-table td {
    padding: 8px;
  }

  .dynamic-table {
    font-size: 13px;
  }

  .dynamic-table input {
    min-width: 100px;
    padding: 4px 8px;
  }

  .action-buttons {
    gap: 10px;
  }

  .action-buttons .btn {
    flex: 1;
    font-size: 13px;
  }

  h4 {
    font-size: 22px;
  }
}

/* ==================== DESKTOPS (992px and above) ==================== */
@media (min-width: 992px) {
  .dynamic-table {
    font-size: 13px;
  }

  .dynamic-table input {
    min-width: 120px;
  }

  .action-buttons .btn {
    flex: 0 1 auto;
  }
}