/* ==========================================================================
   两面针智能排产与数字化车间中控平台 - 工业级暗黑高科技设计系统
   DESIGN SYSTEM: Carbon Dark, Electric Cyan (#06b6d4), Cyber Emerald (#10b981), Amber (#f59e0b)
   ========================================================================== */

:root {
  --bg-dark: #0b0f17;
  --bg-surface: #111827;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-card: rgba(255, 255, 255, 0.12);
  --border-glow: rgba(6, 182, 212, 0.4);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --color-cyan: #06b6d4;
  --color-cyan-glow: rgba(6, 182, 212, 0.25);
  --color-emerald: #10b981;
  --color-emerald-glow: rgba(16, 185, 129, 0.25);
  --color-amber: #f59e0b;
  --color-amber-glow: rgba(245, 158, 11, 0.25);
  --color-purple: #a855f7;
  --color-purple-glow: rgba(168, 85, 247, 0.25);
  --color-rose: #f43f5e;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body.dark-theme {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* Background Grids & Ambient Lights */
.tech-grid-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}

.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  opacity: 0.22;
  z-index: 0;
}

.glow-cyan {
  top: -100px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-cyan), transparent);
}

.glow-emerald {
  bottom: -150px;
  left: -150px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--color-emerald), transparent);
}

/* Header Styles */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(11, 15, 23, 0.85);
  border-bottom: 1px solid var(--border-subtle);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo-badge {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px var(--color-cyan-glow);
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  background: linear-gradient(90deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-sub {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
  letter-spacing: 0.08em;
}

.status-cluster {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
}

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

.pill-val {
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-main);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  position: relative;
}

.pulse-dot.green { background-color: var(--color-emerald); box-shadow: 0 0 8px var(--color-emerald); }
.pulse-dot.cyan { background-color: var(--color-cyan); box-shadow: 0 0 8px var(--color-cyan); }
.pulse-dot.purple { background-color: var(--color-purple); box-shadow: 0 0 8px var(--color-purple); }

.pulse-dot::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border-radius: 50%;
  border: 1px solid inherit;
  animation: pulse-ring 2s infinite cubic-bezier(0.215, 0.61, 0.355, 1);
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(2.2); opacity: 0; }
  100% { transform: scale(2.2); opacity: 0; }
}

.sound-toggle-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-fast);
}

.sound-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  border-color: var(--color-cyan);
}

.sound-toggle-btn .icon-svg {
  width: 14px;
  height: 14px;
}

.time-box {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-cyan);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.2);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

/* Tabs Bar */
.nav-tabs-bar {
  padding: 6px 28px 8px;
  overflow-x: auto;
}

.tabs-container {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 0.84rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.nav-tab:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
}

.nav-tab.active {
  background: rgba(6, 182, 212, 0.12);
  border-color: rgba(6, 182, 212, 0.35);
  color: #38bdf8;
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.15);
}

.tab-icon {
  width: 16px;
  height: 16px;
}

/* Main Container */
.main-body {
  position: relative;
  z-index: 10;
  max-width: 1600px;
  margin: 0 auto;
  padding: 24px 28px 60px;
}

.tab-content {
  display: none;
  animation: fadeIn 0.35s ease forwards;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Glass Panels */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.36);
  position: relative;
  overflow: hidden;
}

.glass-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
}

.border-cyan { border-color: rgba(6, 182, 212, 0.28); }
.border-emerald { border-color: rgba(16, 185, 129, 0.28); }
.border-amber { border-color: rgba(245, 158, 11, 0.28); }
.border-purple { border-color: rgba(168, 85, 247, 0.28); }

/* KPI Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.kpi-card {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.kpi-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.kpi-title {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.kpi-main {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 10px 0 14px;
}

.kpi-number {
  font-size: 2.2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
  color: #ffffff;
}

.highlight-emerald { color: #34d399; text-shadow: 0 0 20px rgba(52, 211, 153, 0.4); }
.highlight-amber { color: #fbbf24; text-shadow: 0 0 20px rgba(251, 191, 36, 0.4); }
.highlight-purple { color: #c084fc; text-shadow: 0 0 20px rgba(192, 132, 252, 0.4); }

.kpi-unit {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.kpi-foot {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-cyan { background: rgba(6, 182, 212, 0.15); color: #38bdf8; border: 1px solid rgba(6, 182, 212, 0.3); }
.badge-emerald { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-amber { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-purple { background: rgba(168, 85, 247, 0.15); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
.badge-muted { background: rgba(255, 255, 255, 0.05); color: var(--text-muted); border: 1px solid var(--border-subtle); }
.badge-outline { background: transparent; border: 1px solid var(--border-card); color: var(--text-muted); }
.badge-sm { padding: 1px 6px; font-size: 0.65rem; }

/* Section Cards */
.section-card {
  padding: 24px;
  margin-bottom: 24px;
}

.card-header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
}

.card-title-sm {
  font-size: 1.05rem;
  font-weight: 600;
  color: #ffffff;
}

.card-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Stepper Pipeline */
.pipeline-stepper {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  position: relative;
}

.step-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  position: relative;
  transition: var(--transition-normal);
}

.step-card:hover {
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-2px);
}

.step-card.completed {
  border-color: rgba(16, 185, 129, 0.4);
  background: rgba(16, 185, 129, 0.04);
}

.step-card.active {
  border-color: var(--color-cyan);
  background: rgba(6, 182, 212, 0.06);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.15);
}

.step-index {
  position: absolute;
  top: 10px;
  right: 12px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-dim);
}

.step-icon {
  width: 32px;
  height: 32px;
  margin-bottom: 12px;
  color: var(--color-cyan);
}

.step-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: #ffffff;
}

.step-status {
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.step-data {
  font-size: 0.72rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* Split Grid Layout */
.dashboard-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 1080px) {
  .dashboard-grid-2 {
    grid-template-columns: 1fr;
  }
  .pipeline-stepper {
    grid-template-columns: 1fr;
  }
}

/* Production Line List */
.line-status-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.line-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  transition: var(--transition-fast);
}

.line-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-card);
}

.line-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.line-prod-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: #e2e8f0;
}

.line-status-pill {
  font-size: 0.75rem;
  font-weight: 600;
}

.progress-bar-wrap {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin: 6px 0;
}

.progress-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.line-data-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* Terminal Box */
.terminal-box {
  background: #06090e;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  height: 290px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.terminal-line {
  line-height: 1.4;
  word-break: break-all;
}

.terminal-time { color: var(--text-dim); margin-right: 6px; }
.terminal-topic { color: var(--color-cyan); margin-right: 6px; }
.terminal-data { color: #e2e8f0; }

.terminal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* Gantt Chart Styles */
.gantt-container {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 16px 0;
}

.gantt-header-timeline {
  display: flex;
  border-bottom: 1px solid var(--border-subtle);
  padding: 10px 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-dim);
}

.gantt-line-col {
  width: 140px;
  min-width: 140px;
  padding-left: 16px;
  font-weight: 600;
  color: var(--text-muted);
}

.gantt-time-slots {
  flex: 1;
  display: flex;
  justify-content: space-between;
  padding-right: 16px;
}

.gantt-body {
  display: flex;
  flex-direction: column;
}

.gantt-row {
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  min-height: 64px;
}

.gantt-row:last-child {
  border-bottom: none;
}

.gantt-row-label {
  width: 140px;
  min-width: 140px;
  padding-left: 16px;
  display: flex;
  flex-direction: column;
}

.gantt-row-label strong { font-size: 0.85rem; color: #ffffff; }
.gantt-row-label small { font-size: 0.7rem; color: var(--text-dim); font-family: var(--font-mono); }

.gantt-row-track {
  flex: 1;
  position: relative;
  height: 42px;
  background: rgba(255, 255, 255, 0.015);
  border-radius: var(--radius-sm);
  margin-right: 16px;
}

.gantt-task {
  position: absolute;
  top: 4px;
  bottom: 4px;
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.74rem;
  cursor: pointer;
  transition: var(--transition-fast);
  overflow: hidden;
  white-space: nowrap;
}

.gantt-task:hover {
  transform: scaleY(1.06);
  filter: brightness(1.2);
  z-index: 20;
}

.task-title {
  font-weight: 600;
  color: #ffffff;
  text-overflow: ellipsis;
  overflow: hidden;
}

.task-tag {
  font-size: 0.65rem;
  opacity: 0.8;
  font-family: var(--font-mono);
}

.task-blue { background: linear-gradient(90deg, #1d4ed8, #2563eb); border: 1px solid #60a5fa; }
.task-cyan { background: linear-gradient(90deg, #0e7490, #06b6d4); border: 1px solid #38bdf8; }
.task-emerald { background: linear-gradient(90deg, #047857, #10b981); border: 1px solid #34d399; }
.task-purple { background: linear-gradient(90deg, #6d28d9, #8b5cf6); border: 1px solid #c084fc; }
.task-amber { background: linear-gradient(90deg, #b45309, #f59e0b); border: 1px solid #fde047; box-shadow: 0 0 14px rgba(245, 158, 11, 0.4); }
.task-amber-glow {
  background: linear-gradient(90deg, #b45309, #f59e0b);
  border: 1px solid #fef08a;
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.5);
  animation: urgent-subtle-glow 2s ease-in-out infinite alternate;
}

@keyframes urgent-subtle-glow {
  0% { box-shadow: 0 0 8px rgba(245, 158, 11, 0.4); border-color: #f59e0b; }
  100% { box-shadow: 0 0 18px rgba(245, 158, 11, 0.85); border-color: #fef08a; }
}
.task-wash {
  background: repeating-linear-gradient(45deg, rgba(239, 68, 68, 0.35), rgba(239, 68, 68, 0.35) 6px, rgba(239, 68, 68, 0.6) 6px, rgba(239, 68, 68, 0.6) 12px);
  border: 1px solid #f87171;
  color: #fca5a5;
  justify-content: center;
}

.task-empty {
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed rgba(255, 255, 255, 0.15);
  color: var(--text-dim);
  justify-content: center;
}

.gantt-legend-bar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 8px 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.legend-color {
  width: 12px;
  height: 12px;
  border-radius: 3px;
}

.bg-blue { background: #2563eb; }
.bg-cyan { background: #06b6d4; }
.bg-emerald { background: #10b981; }
.bg-purple { background: #8b5cf6; }
.bg-amber { background: #f59e0b; }
.bg-wash { background: #ef4444; }

/* Conveyor Belt Physics Stage */
.conveyor-stage-wrap {
  background: #080d14;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  position: relative;
  overflow: hidden;
  margin-bottom: 20px;
}

.conveyor-belt {
  position: relative;
  height: 140px;
  background: #1e293b;
  border-radius: var(--radius-sm);
  border-top: 3px solid #475569;
  border-bottom: 3px solid #475569;
  overflow: hidden;
  box-shadow: inset 0 0 20px rgba(0,0,0,0.8);
}

.belt-stripes {
  position: absolute;
  top: 0;
  left: 0;
  width: 200%;
  height: 100%;
  background: repeating-linear-gradient(90deg, transparent, transparent 30px, rgba(255, 255, 255, 0.03) 30px, rgba(255, 255, 255, 0.03) 60px);
  animation: belt-move 3s linear infinite;
}

@keyframes belt-move {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.conveyor-item {
  position: absolute;
  bottom: 28px;
  animation: item-travel 4s linear infinite;
}

.item-1 { animation-delay: 0s; }
.item-2 { animation-delay: 1.33s; }
.item-3 { animation-delay: 2.66s; }

@keyframes item-travel {
  0% { left: -80px; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { left: 105%; opacity: 0; }
}

.item-visual-tube {
  width: 70px;
  height: 28px;
  background: linear-gradient(180deg, #f8fafc, #cbd5e1);
  border-radius: 4px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  color: #0f172a;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

.item-visual-tube.tube-blue { background: linear-gradient(180deg, #38bdf8, #0284c7); color: #ffffff; }
.item-visual-tube.tube-green { background: linear-gradient(180deg, #34d399, #059669); color: #ffffff; }

.tube-cap {
  position: absolute;
  right: -8px;
  width: 10px;
  height: 18px;
  background: #64748b;
  border-radius: 2px;
}

/* Camera Rig & Laser Beam */
.camera-rig {
  position: absolute;
  top: 6px;
  left: 55%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 10;
}

.camera-head {
  background: #1e293b;
  border: 1px solid var(--border-card);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.5);
}

.camera-lens {
  width: 16px;
  height: 16px;
  background: #0f172a;
  border: 2px solid var(--color-cyan);
  border-radius: 50%;
  position: relative;
}

.flash-ring {
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  opacity: 0;
  pointer-events: none;
}

.flash-ring.trigger-flash {
  animation: flash-pulse 0.22s ease-out;
}

@keyframes flash-pulse {
  0% { opacity: 1; transform: scale(1); filter: drop-shadow(0 0 12px #ffffff); }
  100% { opacity: 0; transform: scale(2.8); }
}

.camera-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--color-cyan);
}

.laser-beam {
  width: 2px;
  height: 90px;
  background: linear-gradient(180deg, rgba(239, 68, 68, 0.8), rgba(239, 68, 68, 0.3));
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.8);
  margin-top: 2px;
}

.trigger-zone-label {
  position: absolute;
  bottom: -22px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-rose);
  white-space: nowrap;
}

/* Sensor Readout Grid */
.sensor-readout-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.readout-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
}

.readout-label { font-size: 0.75rem; color: var(--text-muted); }
.readout-val { font-size: 1.5rem; font-weight: 800; font-family: var(--font-mono); margin: 4px 0; }
.readout-sub { font-size: 0.7rem; color: var(--text-dim); }

/* Tables */
.table-container {
  overflow-x: auto;
}

.tech-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  text-align: left;
}

.tech-table th {
  background: rgba(255, 255, 255, 0.03);
  padding: 10px 14px;
  color: var(--text-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--border-subtle);
}

.tech-table td {
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: #cbd5e1;
}

.tech-table tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}

/* Equipment Twin Tank Diagram */
.equipment-twin-wrap {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  align-items: center;
}

.tank-diagram {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.tank-cap {
  display: flex;
  justify-content: space-around;
  width: 100%;
  margin-bottom: 10px;
}

.motor-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 0.65rem;
  color: var(--text-dim);
}

.motor-fan {
  width: 20px;
  height: 20px;
  border: 2px dashed var(--color-cyan);
  border-radius: 50%;
  margin-bottom: 4px;
}

.motor-fan.spin { animation: spin 2s linear infinite; }
.motor-fan.spin-fast { animation: spin 0.6s linear infinite; border-color: var(--color-amber); }

@keyframes spin { 100% { transform: rotate(360deg); } }

.tank-body {
  width: 220px;
  height: 200px;
  border: 3px solid #475569;
  border-radius: 0 0 40px 40px;
  background: #0f172a;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 0 20px rgba(0,0,0,0.9);
}

.paste-level {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.85), rgba(203, 213, 225, 0.9));
  transition: height 1s ease;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 10px;
}

.paste-label {
  font-size: 0.7rem;
  color: #0f172a;
  font-weight: 700;
}

.sensor-overlay {
  position: absolute;
  top: 16px;
  left: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 5;
}

.sensor-tag {
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid var(--border-card);
  padding: 4px 8px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #ffffff;
}

.tag-temp strong { color: var(--color-amber); }
.tag-press strong { color: var(--color-cyan); }

.params-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.param-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}

.param-title { font-size: 0.75rem; color: var(--text-muted); display: block; }
.param-value { font-size: 1.15rem; font-weight: 700; font-family: var(--font-mono); margin: 4px 0; display: block; }
.param-note { font-size: 0.7rem; color: var(--text-dim); }

/* PLC Bit Cards */
.plc-status-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.plc-node-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}

.plc-bit-label { font-size: 0.7rem; font-family: var(--font-mono); color: var(--text-dim); }
.plc-bit-name { font-size: 0.85rem; font-weight: 600; color: #ffffff; margin: 2px 0 6px; }
.plc-bit-val { font-size: 0.8rem; font-family: var(--font-mono); font-weight: 700; }

.wave-box {
  background: #080d14;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 16px;
}

.wave-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.pulse-wave-visual {
  height: 40px;
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.02);
}

.pulse-line {
  position: absolute;
  width: 200%;
  height: 100%;
  background-image: repeating-linear-gradient(90deg, 
    transparent 0, transparent 40px, 
    var(--color-cyan) 40px, var(--color-cyan) 50px, 
    transparent 50px, transparent 90px);
  animation: wave-run 2s linear infinite;
}

@keyframes wave-run {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Benefit Cards */
.benefit-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.benefit-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.bg-cyan-glow { background: rgba(6, 182, 212, 0.15); box-shadow: 0 0 20px var(--color-cyan-glow); }
.bg-amber-glow { background: rgba(245, 158, 11, 0.15); box-shadow: 0 0 20px var(--color-amber-glow); }
.bg-emerald-glow { background: rgba(16, 185, 129, 0.15); box-shadow: 0 0 20px var(--color-emerald-glow); }
.bg-purple-glow { background: rgba(168, 85, 247, 0.15); box-shadow: 0 0 20px var(--color-purple-glow); }

.benefit-title { font-size: 1.05rem; font-weight: 700; color: #ffffff; margin-bottom: 8px; }
.benefit-text { font-size: 0.84rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 14px; }
.benefit-tag { font-family: var(--font-mono); font-size: 0.85rem; font-weight: 700; }

/* SOP Accordion & Checklist */
.sop-accordion {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sop-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
}

.sop-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.sop-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sop-title { font-size: 0.95rem; color: #ffffff; }

.sop-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-left: 6px;
}

.sop-check-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.84rem;
  color: #cbd5e1;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.sop-check-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.sop-checkbox {
  margin-top: 3px;
  accent-color: var(--color-emerald);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* Alert Boxes */
.alert-box {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.84rem;
  margin-bottom: 18px;
  line-height: 1.5;
}

.alert-cyan {
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: #e0f2fe;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 18px;
  font-size: 0.84rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.btn-icon { width: 16px; height: 16px; }

.btn-cyan {
  background: #0284c7;
  color: #ffffff;
  box-shadow: 0 0 16px rgba(2, 132, 199, 0.4);
}

.btn-cyan:hover {
  background: #0369a1;
  box-shadow: 0 0 24px rgba(2, 132, 199, 0.6);
  transform: translateY(-1px);
}

.btn-amber {
  background: #d97706;
  color: #ffffff;
  box-shadow: 0 0 16px rgba(217, 119, 6, 0.4);
}

.btn-amber:hover {
  background: #b45309;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border-color: var(--border-card);
  color: var(--text-main);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--color-cyan);
}

.btn-sm { padding: 6px 12px; font-size: 0.78rem; }
.btn-xs { padding: 4px 8px; font-size: 0.7rem; }

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 1000;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 30px rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  color: #ffffff;
  animation: slideToast 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes slideToast {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.toast-cyan { border-left: 4px solid var(--color-cyan); }
.toast-emerald { border-left: 4px solid var(--color-emerald); }
.toast-amber { border-left: 4px solid var(--color-amber); }

/* Utility Classes */
.text-cyan { color: var(--color-cyan); }
.text-emerald { color: var(--color-emerald); }
.text-amber { color: var(--color-amber); }
.text-purple { color: var(--color-purple); }
.text-muted { color: var(--text-muted); }
.margin-top-lg { margin-top: 24px; }
.w-120 { width: 120px; }

/* Footer */
.app-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 18px 28px;
  font-size: 0.75rem;
  color: var(--text-dim);
  background: rgba(11, 15, 23, 0.9);
}

.footer-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1600px;
  margin: 0 auto;
}

.footer-left { display: flex; align-items: center; gap: 8px; }
.separator { opacity: 0.4; }