:root {
  --bg:      #0b1220;
  --panel:   #132c44;
  --border:  #0e1822;
  --text:    #e0e6ed;
  --muted:   #9aa6b2;
  --accent:  #a4bbd4;
  --active:  #1e3a5f;
  --danger:  #7f1d1d;
  --danger-border: #991b1b;
}

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

html {
  min-height: 100%;
}

body {
  min-height: 100vh;
  font-family: Arial, sans-serif;
  font-size: 14px;
  /* background-attachment: fixed hält den Verlauf relativ zum Viewport —
     verhindert das Wiederholen bei langen Seiten */
  background: linear-gradient(to bottom, #dddddd -20%, var(--bg) 130%) fixed;
  color: var(--text);
  padding: 16px;
}

/* ===== HEADER ===== */
.app-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 16px;
}
.app-header h1 {
  font-size: 16px;
  font-weight: 600;
  color: var(--accent);
}
.app-header .subtitle {
  font-size: 12px;
  color: var(--muted);
}

/* ===== GRID ===== */
.sections {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 16px;
  align-items: start;
}
@media (max-width: 760px) {
  .sections { grid-template-columns: 1fr; }
}

/* ===== CARD ===== */
.section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}
.section h2 {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.section h2 .badge {
  font-size: 11px;
  font-weight: normal;
  color: var(--muted);
  background: #1e293b;
  padding: 1px 7px;
  border-radius: 10px;
}

/* ===== PROGRAM LIST ===== */
#program-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.prog-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.1s;
}
.prog-item:hover {
  background: #1e293b;
  border-color: #334155;
}
.prog-item.is-active {
  background: var(--active);
  border-color: var(--accent);
}
.prog-item.is-selected {
  background: #1e293b;
  border-color: #475569;
}
.prog-item.is-folder { font-style: italic; }
.prog-item .prog-name {
  flex: 1;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.prog-item .prog-id {
  font-size: 11px;
  color: var(--muted);
}
.prog-item .prog-count {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}
.prog-item .btn-del {
  background: none;
  border: 1px solid transparent;
  color: var(--muted);
  border-radius: 4px;
  padding: 1px 5px;
  cursor: pointer;
  font-size: 13px;
  opacity: 0;
  transition: opacity 0.1s;
}
.prog-item:hover .btn-del,
.prog-item.is-active .btn-del { opacity: 1; }
.prog-item .btn-del:hover {
  color: #fca5a5;
  border-color: var(--danger-border);
  background: var(--danger);
}

.empty-hint {
  font-size: 12px;
  color: var(--muted);
  padding: 8px 2px;
}

/* ===== CONTROLS ===== */
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
button {
  background: #1e293b;
  color: var(--text);
  border: 1px solid #334155;
  padding: 6px 13px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  transition: border-color 0.15s;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: 0.4; cursor: not-allowed; }
button.primary {
  background: var(--active);
  border-color: var(--accent);
}

/* ===== ACTIVE INFO BAR ===== */
.active-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  background: #0b1220;
  border: 1px solid #1f2937;
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 12px;
  font-size: 12px;
}
.active-bar .kv { display: flex; flex-direction: column; }
.active-bar .kv .k { color: var(--muted); font-size: 11px; }
.active-bar .kv .v { color: var(--accent); font-weight: 600; }
.active-bar .sep { width: 1px; height: 30px; background: #1f2937; }

/* ===== GCODE TABLE ===== */
.table-wrap {
  overflow-x: auto;
  border: 1px solid #1f2937;
  border-radius: 6px;
  max-height: 600px;
  overflow-y: auto;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
}
table th {
  background: #1e293b;
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  padding: 5px 8px;
  text-align: left;
  position: sticky;
  top: 0;
  border-bottom: 1px solid #334155;
}
table td {
  padding: 4px 8px;
  border-bottom: 1px solid #0e1822;
  white-space: nowrap;
}
table tbody tr:nth-child(even) { background: #0f172a; }
table tbody tr:hover { background: #1e293b; }
table tbody tr.cursor-row {
  background: var(--active);
  border-left: 2px solid var(--accent);
}
table td.idx  { color: var(--muted); width: 40px; }
table td.line { color: var(--text); }
table td.ts   { color: var(--muted); font-size: 11px; }

/* ===== STATUS / SPINNER ===== */
.status-line {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
  min-height: 18px;
}
.status-line.err { color: #fca5a5; }

/* ===== DOWNLOAD LINK ===== */
.dl-link {
  display: inline-block;
  font-size: 12px;
  color: var(--accent);
  text-decoration: none;
  padding: 4px 10px;
  border: 1px solid #334155;
  border-radius: 6px;
  background: #1e293b;
}
.dl-link:hover { border-color: var(--accent); }