/* Theme mirrors python_app/gui/theme.py (light Fusion palette). */
:root {
  --bg: #f3f6fb;
  --panel: #ffffff;
  --panel-alt: #fbfdff;
  --border: #c9d4e1;
  --border-soft: #d7dee8;
  --text: #1f2937;
  --muted: #6c7b8d;
  --status: #35507a;
  --accent: #2f7ee6;
  --accent-hover: #3b8bf4;
  --btn-bg: #f8fafc;
  --btn-hover: #eef3f9;
  --btn-press: #e4ebf4;
  --disabled-text: #98a4b3;
  --disabled-bg: #f3f5f8;
  --danger: #f94144;
  --mono: "DejaVu Sans Mono", ui-monospace, monospace;
  --sans: "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 13px;
}

body {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border-soft);
  gap: 12px;
}

.brand {
  font-weight: 700;
  font-size: 15px;
  color: var(--status);
  letter-spacing: 0.2px;
}

.controls { display: flex; gap: 8px; flex-wrap: wrap; }

/* Buttons */
.btn {
  background: var(--btn-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 12px;
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease;
}
.btn:hover:not(:disabled) { background: var(--btn-hover); }
.btn:active:not(:disabled) { background: var(--btn-press); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}
.btn.primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn:disabled {
  color: var(--disabled-text);
  background: var(--disabled-bg);
  border-color: var(--border-soft);
  cursor: not-allowed;
}

/* Layout */
.layout {
  flex: 1;
  display: flex;
  min-height: 0;
  padding: 14px;
  gap: 14px;
}

/* Plot */
.plot-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 10px;
}
.plot-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 8px;
}
.plot-title { font-weight: 600; color: var(--status); }
.axes-label { color: var(--muted); font-family: var(--mono); font-size: 12px; }
.canvas-wrap {
  flex: 1;
  min-height: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0f141c; /* matches the pyqtgraph plot background behind letterboxing */
  overflow: hidden;
}
#plot { display: block; width: 100%; height: 100%; object-fit: contain; }

/* Side panel */
.side-panel {
  width: 340px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  overflow: hidden;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  cursor: pointer;
  user-select: none;
  border-bottom: 1px solid var(--border-soft);
}
.panel-title { font-weight: 600; color: var(--status); }
.chevron { color: var(--muted); transition: transform 0.15s ease; }
.side-panel.collapsed .chevron { transform: rotate(-90deg); }
.panel-body {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.side-panel.collapsed .panel-body { display: none; }

.settings-fields {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 8px 12px;
}
.group-title {
  margin: 12px 0 6px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--muted);
  font-weight: 700;
}
.group-title:first-child { margin-top: 4px; }

.field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 3px 0;
}
.field label {
  flex: 1;
  font-size: 12px;
  color: var(--text);
  word-break: break-word;
}
.field input[type="text"],
.field input[type="number"],
.field select {
  width: 140px;
  flex-shrink: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 4px 7px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
}
.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
}
.field input[type="checkbox"] {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  accent-color: var(--accent);
}

.settings-actions {
  display: flex;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--border-soft);
}
.settings-actions .btn { flex: 1; }
.note {
  padding: 0 12px 10px;
  color: var(--muted);
  font-size: 11px;
  min-height: 14px;
}

/* Status bar */
.statusbar {
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 7px 16px;
  background: var(--panel);
  border-top: 1px solid var(--border-soft);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--status);
  flex-wrap: wrap;
}
.stat b { color: var(--text); font-weight: 600; }
.stat.ok b { color: #1b7a3d; }
.stat.off b { color: var(--muted); }
#stat-stale {
  margin-left: auto;
  padding: 2px 9px;
  border-radius: 999px;
  background: #e4f0e6;
  color: #1b7a3d;
  font-weight: 600;
}
#stat-stale.stale {
  background: #fde2e3;
  color: var(--danger);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 56px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--status);
  color: #ffffff;
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  max-width: 70vw;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast.error { background: var(--danger); }

/* Narrow screens / phones: stack the plot above the settings, full-width controls. */
@media (max-width: 760px) {
  .topbar { flex-wrap: wrap; }
  .controls { width: 100%; }
  .controls .btn { flex: 1 1 auto; }
  .layout { flex-direction: column; padding: 10px; gap: 10px; }
  .plot-panel { flex: none; height: 45vh; }
  .side-panel { width: auto; flex: 1; min-height: 0; }
  .field input[type="text"],
  .field input[type="number"],
  .field select { width: 130px; }
  .statusbar { gap: 12px; }
}