:root {
  --bg: #0f1420;
  --panel: #161c2c;
  --panel-2: #1d2438;
  --border: #2a3350;
  --text: #e7ebf5;
  --text-dim: #9aa5c0;
  --accent: #4f8cff;
  --accent-2: #34d399;
  --danger: #ef4444;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 18px; }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.conn-status { font-size: 12px; padding: 5px 10px; border-radius: 20px; }
.conn-status.offline { background: #3a2020; color: #ff9b9b; }
.conn-status.online { background: #10331f; color: #7bf0a6; }

.layout {
  display: grid;
  grid-template-columns: 340px 1fr 340px;
  gap: 16px;
  padding: 16px;
  align-items: start;
}

.client-layout {
  grid-template-columns: 380px 1fr;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.panel h2 { margin-top: 0; font-size: 15px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .04em; }
.panel h3 { font-size: 13px; color: var(--text-dim); margin: 18px 0 6px; text-transform: uppercase; letter-spacing: .04em; }

label {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 10px;
}
label small { color: #6b7699; font-weight: normal; }

input[type="text"], input[type="number"], select, textarea {
  width: 100%;
  margin-top: 5px;
  padding: 9px 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  font-size: 14px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); }

.row2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}
.checkbox-label input { width: auto; margin: 0; }

.btn {
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  font-weight: 600;
}
a.btn { display: inline-block; text-decoration: none; }
.btn:hover { border-color: var(--accent); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn:disabled:hover { border-color: var(--border); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: white; }
.btn.accent { background: var(--accent-2); border-color: var(--accent-2); color: #063; }
.btn.ghost { background: transparent; }
.btn.full { width: 100%; margin-bottom: 16px; }

.btn-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.btn-row .btn { flex: 1; min-width: 100px; }

.preview-panel { display: flex; flex-direction: column; align-items: center; }
.canvas-wrap {
  width: 100%;
  overflow: auto;
  background: #fff;
  border-radius: 8px;
  padding: 10px;
}
#labelCanvas { width: 100%; height: auto; display: block; background: #fff; }
#previewImg { width: 100%; height: auto; display: block; background: #fff; }
.empty-state.center-text { text-align: center; padding: 40px 10px; }
.hint { color: var(--text-dim); font-size: 12px; margin-top: 10px; text-align: center; }

.search-box {
  width: 100%;
  padding: 10px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 14px;
}
.results-count { font-size: 11px; color: var(--text-dim); margin: 8px 2px; }

.label-list { display: flex; flex-direction: column; gap: 8px; max-height: 640px; overflow-y: auto; }
.empty-state { color: var(--text-dim); font-size: 13px; line-height: 1.5; }

.label-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  cursor: pointer;
  transition: border-color .15s;
}
.label-card.selected { border-color: var(--accent-2); box-shadow: 0 0 0 1px var(--accent-2); }
.label-card:hover { border-color: var(--accent); }
.label-card .title { font-weight: 700; font-size: 13px; margin-bottom: 3px; }
.label-card .meta { font-size: 11px; color: var(--text-dim); }
.label-card .meta span { margin-right: 8px; }
.label-card .card-actions { margin-top: 8px; display: flex; gap: 6px; }
.label-card .card-actions button {
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
}
.label-card .card-actions button:hover { color: var(--text); border-color: var(--accent); }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}
.modal.hidden { display: none; }
.modal-content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  width: 500px;
  max-width: 90vw;
}
.modal-content textarea {
  font-family: ui-monospace, monospace;
  font-size: 12px;
}
.settings-msg { font-size: 12px; margin-top: 10px; min-height: 16px; }
.settings-msg.ok { color: var(--accent-2); }
.settings-msg.err { color: var(--danger); }

@media (max-width: 1100px) {
  .layout { grid-template-columns: 1fr; }
}

/* ===========================================================
   Print-only label view
   #printArea stays invisible/off-screen during normal use.
   When the browser's print dialog runs, everything else on the
   page is hidden and only the label image is shown, sized to
   fill the printer's selected page/label stock.
   =========================================================== */
#printArea {
  display: none;
}

@media print {
  body * { visibility: hidden; }
  #printArea, #printArea * { visibility: visible; }
  #printArea {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    margin: 0;
    padding: 0;
  }
  #printImg {
    width: 100%;
    height: auto;
    display: block;
  }
  @page {
    margin: 0;
  }
}