:root {
  --d-bg: #fafaf9;
  --d-surface: #ffffff;
  --d-surface-2: #f5f5f4;
  --d-border: #e7e5e4;
  --d-border-strong: #d6d3d1;
  --d-text: #0c0a09;
  --d-text-2: #44403c;
  --d-text-3: #78716c;
  --d-text-4: #a8a29e;
  --d-accent: #6366f1;
  --d-accent-soft: #eef2ff;
}

body {
  font-family: 'Google Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--d-bg);
  color: var(--d-text);
  -webkit-font-smoothing: antialiased;
  margin: 0;
}

.app-header {
  background: var(--d-surface);
  border-bottom: 1px solid var(--d-border);
  height: 56px;
}
.app-header-inner {
  width: 90%; margin: 0 5%;
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { font-weight: 600; font-size: 15px; color: var(--d-text); text-decoration: none; letter-spacing: -.01em; }
.user { font-size: 13px; color: var(--d-text-3); margin-right: 12px; }

.page-wrap { width: 90%; margin: 20px 5% 16px; }
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.page-header h1 { font-size: 22px; font-weight: 600; letter-spacing: -.02em; margin: 0; }

/* Trim DataTables's chrome so the home table fits the viewport at typical heights. */
.dataTables_wrapper { font-size: 12px; }
.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter { padding-bottom: 8px; }
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_paginate { padding-top: 8px; }

/* Internal-tbody scroll mode: keep the rounded card look, defeat double borders. */
.dataTables_scroll {
  border: 1px solid var(--d-border);
  border-radius: 8px;
  overflow: hidden;
}
.dataTables_scrollHead, .dataTables_scrollBody { background: var(--d-surface); }
.dataTables_scroll .table { border: 0; border-radius: 0; }
.dataTables_scrollBody { overflow-x: hidden !important; }
.dataTables_scrollBody table { margin-top: 0 !important; }

h2 { font-size: 16px; font-weight: 600; letter-spacing: -.01em; margin: 0 0 12px; }

.card {
  background: var(--d-surface);
  border: 1px solid var(--d-border);
  border-radius: 8px;
  box-shadow: none;
}
.card-body { padding: 24px; }

/* Tables */
.table {
  font-size: 13px;
  background: var(--d-surface);
  border: 1px solid var(--d-border);
  border-radius: 8px;
  overflow: hidden;
  margin: 0;
  border-collapse: separate;
  border-spacing: 0;
}
.table thead th {
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em;
  color: var(--d-text-3); background: var(--d-surface-2); padding: 10px 14px;
  border: 0; border-bottom: 1px solid var(--d-border); white-space: nowrap;
}
.table tbody td { padding: 10px 14px; border: 0; border-bottom: 1px solid var(--d-border); color: var(--d-text-2); vertical-align: middle; }
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: var(--d-surface-2); }
.table.table-striped > tbody > tr:nth-of-type(odd) > * { background: transparent; }

.dataTables_filter .form-control,
.dataTables_filter .form-select { height: 34px; font-size: 13px; border-radius: 6px; border: 1px solid var(--d-border); padding: 0 10px; }
.dataTables_filter .form-control:focus,
.dataTables_filter .form-select:focus { border-color: var(--d-accent); box-shadow: 0 0 0 3px rgba(99,102,241,.15); }
.dataTables_length select { height: 34px; border-radius: 6px; border: 1px solid var(--d-border); font-size: 13px; }
.dataTables_info, .dataTables_paginate { font-size: 12px; color: var(--d-text-3); }
.page-link { border-radius: 6px; margin: 0 2px; color: var(--d-text-2); border-color: var(--d-border); font-size: 12px; }
.page-item.active .page-link { background: var(--d-text); border-color: var(--d-text); color: #fff; }

/* Buttons */
.btn { font-size: 12px; padding: 5px 12px; border-radius: 6px; font-weight: 500; line-height: 1.4; }
.btn-primary { background: var(--d-text); border-color: var(--d-text); color: #fff; }
.btn-primary:hover { background: #1c1917; border-color: #1c1917; color: #fff; }
.btn-secondary, .btn-light { background: var(--d-surface); border: 1px solid var(--d-border); color: var(--d-text-2); }
.btn-secondary:hover, .btn-light:hover { background: var(--d-surface-2); color: var(--d-text); border-color: var(--d-border); }
.btn-danger { background: var(--d-surface); border: 1px solid var(--d-border); color: #dc2626; }
.btn-danger:hover { background: #fef2f2; border-color: #fecaca; color: #dc2626; }
.btn .fa, .btn .fa-solid, .btn .fa-regular { margin-right: 6px; }
.btn .fa:last-child, .btn .fa-solid:last-child, .btn .fa-regular:last-child { margin-right: 0; }

.btn-icon {
  width: 32px; height: 32px; padding: 0; border-radius: 6px;
  background: var(--d-surface); border: 1px solid var(--d-border); color: var(--d-text-2);
  display: inline-flex; align-items: center; justify-content: center;
  transition: background-color .12s, color .12s, border-color .12s, transform .06s;
  text-decoration: none;
}
.btn-icon:hover:not(:disabled) { background: var(--d-surface-2); color: var(--d-text); border-color: var(--d-border-strong); }
.btn-icon:active:not(:disabled) { transform: scale(.96); }
.btn-icon:disabled { opacity: .4; cursor: default; color: var(--d-text-4); }
.btn-icon .fa, .btn-icon .fa-solid, .btn-icon .fa-regular { margin: 0; }

/* Form controls */
.form-control, .form-select {
  height: 34px; font-size: 13px; border-radius: 6px; border: 1px solid var(--d-border);
  padding: 0 10px; background: var(--d-surface); color: var(--d-text);
}
.form-control:focus, .form-select:focus { border-color: var(--d-accent); box-shadow: 0 0 0 3px rgba(99,102,241,.15); outline: 0; }
.form-control[disabled], .form-select[disabled] { background: var(--d-surface-2); color: var(--d-text-3); }
.form-label { font-size: 12px; font-weight: 500; color: var(--d-text-3); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 8px; }
textarea.form-control { height: auto; min-height: 200px; padding: 10px; line-height: 1.5; }
.is-invalid { border-color: #dc2626 !important; }
.invalid-feedback { font-size: 12px; color: #dc2626; display: block; }
.field-error { outline: 2px solid #fecaca; outline-offset: 4px; border-radius: 4px; }
.field-error .form-label { color: #dc2626; }

.form-control-sm, .form-select-sm { height: 30px; font-size: 13px; padding: 0 8px; }

/* File-drop */
.file-drop input[type=file].form-control {
  border: 2px dashed var(--d-border-strong);
  background: var(--d-bg);
  padding: 28px 16px;
  height: auto;
  border-radius: 8px;
  font-size: 13px;
  color: var(--d-text-3);
  cursor: pointer;
  text-align: center;
  transition: all .15s;
}
.file-drop input[type=file].form-control:hover { border-color: var(--d-accent); background: var(--d-accent-soft); color: var(--d-text-2); }
.file-drop input[type=file].form-control::file-selector-button {
  margin-right: 14px; padding: 6px 12px; border-radius: 6px;
  border: 1px solid var(--d-border); background: var(--d-surface); color: var(--d-text);
  font-size: 12px; font-weight: 500; cursor: pointer;
}

.thumb-banner { max-width: 100%; max-height: 120px; border: 1px solid var(--d-border); border-radius: 6px; background: #fff; }
.thumb-sig { max-width: 200px; max-height: 60px; border: 1px solid var(--d-border); border-radius: 6px; background: #fff; }

/* Login */
.login-card-wrap { max-width: 420px; margin: 80px auto; }
.login-card { padding: 0; }
.login-title { font-size: 22px; font-weight: 600; letter-spacing: -.02em; margin: 0 0 20px; }

/* Sticky save bar */
.form-footer {
  position: sticky; bottom: 0; background: var(--d-surface);
  border-top: 1px solid var(--d-border); padding: 16px;
  display: flex; justify-content: space-between; gap: 8px;
  margin: 0 -5px;
}

/* Modal preview */
.custom-modal .modal-dialog { max-width: 98vw; max-height: 90vh; width: 98vw; height: 90vh; margin: 1vh auto; }
.custom-modal .modal-content { height: 100%; }
.custom-modal .modal-body { overflow-y: auto; height: calc(100% - 56px - 56px); padding: 0; }

/* Group rows after submit */
tr.row-sent td { background: var(--d-surface-2) !important; color: var(--d-text-3); }
tr.row-sent input { background: transparent !important; border-color: transparent !important; pointer-events: none; }

/* Spinner */
.global-spinner {
  position: fixed; top: 12px; right: 12px; z-index: 2000;
  width: 32px; height: 32px;
  background: rgba(255,255,255,.9); border-radius: 50%; padding: 4px;
  border: 1px solid var(--d-border);
}
.global-spinner .spinner-border { width: 22px; height: 22px; border-width: .18em; color: var(--d-accent); }

/* Suggest dropdown */
.suggest {
  position: absolute; left: 12px; right: 12px; top: 100%; z-index: 30;
  background: var(--d-surface); border: 1px solid var(--d-border); border-radius: 6px;
  max-height: 240px; overflow: auto; display: none;
  box-shadow: 0 4px 16px rgba(0,0,0,.05);
}
.suggest-item { padding: 8px 12px; font-size: 13px; cursor: pointer; }
.suggest-item:hover { background: var(--d-surface-2); }

.actions-col { width: 200px; }