:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --accent-hover: #0284c7;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --bed-bg: #f8fafc;
  --bed-grid: #e2e8f0;
  --border-color: #334155;
  --radius-lg: 12px;
  --radius-md: 8px;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.brand .badge {
  background-color: var(--bg-tertiary);
  color: var(--accent);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.header-status {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  background: var(--bg-tertiary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot.connected { background-color: var(--success); box-shadow: 0 0 8px var(--success); }
.status-dot.simulated { background-color: var(--warning); box-shadow: 0 0 8px var(--warning); }
.status-dot.disconnected { background-color: var(--danger); box-shadow: 0 0 8px var(--danger); }

/* Main Layout */
.main-container {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 1.5rem;
  padding: 1.5rem;
  flex: 1;
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
}

@media (max-width: 1024px) {
  .main-container {
    grid-template-columns: 1fr;
  }
}

/* Card components */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Canvas Area */
.canvas-wrapper {
  position: relative;
  width: 100%;
  height: 520px;
  background: #182234;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
}

#plotCanvas {
  max-width: 100%;
  max-height: 100%;
  cursor: grab;
}

#plotCanvas:active {
  cursor: grabbing;
}

.canvas-toolbar {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  gap: 6px;
  z-index: 10;
}

.canvas-btn {
  background: rgba(30, 41, 59, 0.85);
  backdrop-filter: blur(4px);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 6px 10px;
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.canvas-btn:hover {
  background: var(--accent);
  color: #000;
}

.bed-legend {
  position: absolute;
  bottom: 10px;
  left: 10px;
  font-size: 0.75rem;
  background: rgba(15, 23, 42, 0.8);
  padding: 4px 8px;
  border-radius: 4px;
  color: var(--text-muted);
}

/* Active Plotter Widget */
.active-job-box {
  background: #1e293b;
  border-left: 4px solid var(--accent);
  padding: 1rem;
  border-radius: var(--radius-md);
}

.job-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.progress-bar-bg {
  width: 100%;
  height: 10px;
  background: var(--bg-tertiary);
  border-radius: 5px;
  overflow: hidden;
  margin: 0.5rem 0;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #60a5fa);
  width: 0%;
  transition: width 0.3s ease;
}

/* Buttons */
.btn {
  background: var(--accent);
  color: #0f172a;
  font-weight: 600;
  border: none;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.875rem;
  transition: background 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn:hover {
  background: var(--accent-hover);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: #475569;
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-danger:hover {
  background: #dc2626;
}

.btn-warning {
  background: var(--warning);
  color: #000;
}

/* Upload zone */
.dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: rgba(30, 41, 59, 0.4);
}

.dropzone:hover, .dropzone.drag-over {
  border-color: var(--accent);
  background: rgba(56, 189, 248, 0.05);
}

.dropzone svg {
  width: 40px;
  height: 40px;
  margin-bottom: 0.5rem;
  stroke: var(--accent);
}

.file-info-box {
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

/* Settings sliders */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.8rem;
}

.field-group label {
  color: var(--text-muted);
}

.field-group input[type="range"] {
  accent-color: var(--accent);
}

/* Jog Pad */
.jog-pad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  max-width: 220px;
  margin: 0 auto;
}

.jog-btn {
  aspect-ratio: 1;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: background 0.15s;
}

.jog-btn:hover {
  background: var(--accent);
  color: #000;
}

.jog-btn.center {
  background: var(--accent);
  color: #000;
}

/* Tabs */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  gap: 0.5rem;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.job-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 250px;
  overflow-y: auto;
}

.job-item {
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.job-badge {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
}
.job-badge.queued { background: #1e3a8a; color: #93c5fd; }
.job-badge.running { background: #065f46; color: #a7f3d0; }
.job-badge.completed { background: #14532d; color: #86efac; }
.job-badge.failed { background: #7f1d1d; color: #fca5a5; }