:root {
  --bg-primary: #0a0f1d;
  --bg-card: #131b2e;
  --bg-card-hover: #1a253e;
  --border-color: #23314e;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --accent-cyan: #06b6d4;
  --accent-blue: #3b82f6;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Header */
header {
  background: rgba(19, 27, 46, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  flex-wrap: wrap;
  gap: 1rem;
}

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

.brand-badge {
  background: linear-gradient(135deg, #06b6d4, #3b82f6);
  color: white;
  font-weight: 800;
  font-size: 0.85rem;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  letter-spacing: 0.5px;
}

.brand-title {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.brand-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.controls-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Language Selector */
.lang-selector {
  display: flex;
  background: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.lang-btn.active, .lang-btn:hover {
  background: var(--accent-blue);
  color: #fff;
}

/* View Mode Switch */
.view-switch {
  display: flex;
  background: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.mode-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.4rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.mode-btn.active {
  background: linear-gradient(135deg, #0284c7, #0369a1);
  color: #fff;
}

/* Demo Switch */
.demo-toggle-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: #0f172a;
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.switch {
  position: relative;
  display: inline-block;
  width: 34px;
  height: 20px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #334155;
  transition: .3s;
}

.slider.round {
  border-radius: 20px;
}

.slider.round:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--accent-amber);
}

input:checked + .slider:before {
  transform: translateX(14px);
}

.demo-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-amber);
  letter-spacing: 0.5px;
}

/* Status Pills */
.status-pills {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.pill {
  font-size: 0.72rem;
  padding: 0.3rem 0.65rem;
  border-radius: 9999px;
  background: #1e293b;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* Demo Banner */
.demo-banner {
  background: #78350f;
  color: #fef3c7;
  text-align: center;
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-bottom: 1px solid #b45309;
}

/* Main Layout */
main {
  flex: 1;
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 1.5rem;
  max-width: 1680px;
  margin: 0 auto;
  width: 100%;
}

@media (max-width: 1200px) {
  main {
    grid-template-columns: 1fr;
  }
}

/* Cards */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  margin-bottom: 1.25rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.card-title {
  font-size: 0.92rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.badge {
  font-size: 0.72rem;
  background: #1e293b;
  color: var(--accent-cyan);
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

/* Alert Banner */
.alert-banner {
  background: linear-gradient(135deg, rgba(244, 63, 94, 0.2), rgba(159, 18, 57, 0.3));
  border: 1px solid var(--accent-rose);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
  display: none;
  animation: bannerPulse 2s infinite;
}

@keyframes bannerPulse {
  0% { box-shadow: 0 0 0 rgba(244, 63, 94, 0); }
  50% { box-shadow: 0 0 15px rgba(244, 63, 94, 0.35); }
  100% { box-shadow: 0 0 0 rgba(244, 63, 94, 0); }
}

.alert-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.alert-title {
  color: var(--accent-rose);
  font-weight: 800;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.latency-badge {
  font-size: 0.75rem;
  background: #f43f5e;
  color: #fff;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-weight: 700;
}

.alert-body {
  font-size: 0.85rem;
  color: #fecdd3;
  margin-top: 0.5rem;
}

/* Metric Grid */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.metric-card {
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1rem;
  position: relative;
  transition: transform 0.2s, border-color 0.2s;
}

.metric-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-cyan);
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.metric-value {
  font-size: 1.65rem;
  font-weight: 800;
  font-family: monospace;
}

.metric-unit {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.progress-bar-bg {
  width: 100%;
  height: 5px;
  background: #1e293b;
  border-radius: 3px;
  margin-top: 0.75rem;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent-cyan);
  transition: width 0.5s ease-out, background-color 0.3s;
}

/* Robotics Grid */
.robotics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 768px) {
  .robotics-grid {
    grid-template-columns: 1fr;
  }
}

.robotics-card {
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1rem;
}

.robotics-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.carousel-visual {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.vial-slot {
  background: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.5rem 0.25rem;
  text-align: center;
  transition: all 0.3s;
}

.vial-slot.occupied {
  border-color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.1);
}

.vial-slot.active {
  border-color: var(--accent-rose);
  background: rgba(244, 63, 94, 0.15);
  animation: bannerPulse 1.5s infinite;
}

.vial-icon {
  font-size: 1.3rem;
  margin-bottom: 0.25rem;
}

.vial-label {
  font-size: 0.7rem;
  font-weight: 700;
}

.vial-status {
  font-size: 0.62rem;
  color: var(--text-muted);
}

.vial-slot.occupied .vial-status {
  color: var(--accent-cyan);
  font-weight: 600;
}

.robotics-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.wiper-status-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: #0f172a;
  padding: 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.wiper-icon {
  font-size: 1.6rem;
}

.wiper-headline {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-green);
}

.wiper-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* Community Hero Card */
.community-hero-card {
  background: linear-gradient(180deg, #131b2e 0%, #0d1527 100%);
  border: 1px solid #1e293b;
  text-align: center;
}

.community-header h2 {
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.35rem;
}

.community-header p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* 360° Visual Beacon (Jal-Deep) */
.beacon-visual-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1.5rem 0;
}

.beacon-halo-glow {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.5s ease-in-out;
}

.beacon-halo-glow.safe {
  background: radial-gradient(circle, rgba(16, 185, 129, 0.25) 0%, rgba(16, 185, 129, 0.05) 60%, transparent 70%);
  box-shadow: 0 0 35px rgba(16, 185, 129, 0.4);
}

.beacon-halo-glow.warning {
  background: radial-gradient(circle, rgba(245, 158, 11, 0.3) 0%, rgba(245, 158, 11, 0.08) 60%, transparent 70%);
  box-shadow: 0 0 45px rgba(245, 158, 11, 0.5);
  animation: bannerPulse 1.8s infinite;
}

.beacon-halo-glow.danger {
  background: radial-gradient(circle, rgba(244, 63, 94, 0.35) 0%, rgba(244, 63, 94, 0.1) 60%, transparent 70%);
  box-shadow: 0 0 55px rgba(244, 63, 94, 0.65);
  animation: bannerPulse 1.2s infinite;
}

.beacon-inner-ring {
  width: 210px;
  height: 210px;
  border-radius: 50%;
  background: #0f172a;
  border: 3px solid var(--accent-green);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  text-align: center;
  transition: border-color 0.4s;
}

.beacon-halo-glow.warning .beacon-inner-ring {
  border-color: var(--accent-amber);
}

.beacon-halo-glow.danger .beacon-inner-ring {
  border-color: var(--accent-rose);
}

.beacon-label-top {
  font-size: 0.72rem;
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--accent-green);
  margin-bottom: 0.35rem;
}

.beacon-halo-glow.warning .beacon-label-top {
  color: var(--accent-amber);
}

.beacon-halo-glow.danger .beacon-label-top {
  color: var(--accent-rose);
}

.beacon-headline {
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 0.35rem;
}

.beacon-sub {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Community Guidance Grid */
.community-guidance-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
  text-align: left;
}

@media (max-width: 768px) {
  .community-guidance-grid {
    grid-template-columns: 1fr;
  }
}

.guidance-card {
  background: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1rem;
  transition: border-color 0.3s;
}

.guidance-card.safe {
  border-left: 4px solid var(--accent-green);
}

.guidance-card.warning {
  border-left: 4px solid var(--accent-amber);
}

.guidance-card.danger {
  border-left: 4px solid var(--accent-rose);
  background: rgba(244, 63, 94, 0.08);
}

.guide-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.guide-title {
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.guide-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.community-contact-banner {
  background: #1e293b;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.85rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* River Plume Transport Visualizer */
.river-track-container {
  background: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 2rem 1.25rem 3.5rem 1.25rem;
  position: relative;
  overflow: hidden;
  margin-bottom: 1.25rem;
}

.river-channel {
  position: relative;
  height: 36px;
  background: linear-gradient(90deg, #1e3a8a, #0284c7, #0369a1);
  border-radius: 18px;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.4);
}

.plume-indicator {
  position: absolute;
  top: -4px;
  height: 44px;
  background: radial-gradient(circle, rgba(244, 63, 94, 0.9) 0%, rgba(244, 63, 94, 0.2) 70%, transparent 100%);
  border-radius: 22px;
  transition: left 0.4s linear, width 0.4s linear;
  box-shadow: 0 0 12px rgba(244, 63, 94, 0.8);
}

.station-marker {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 10;
}

.marker-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid #0284c7;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.6);
}

.station-marker.node-active .marker-dot {
  background: var(--accent-cyan);
  border-color: #fff;
  box-shadow: 0 0 10px var(--accent-cyan);
}

.marker-label {
  position: absolute;
  top: 24px;
  font-size: 0.65rem;
  color: var(--text-muted);
  text-align: center;
  white-space: nowrap;
}

/* ETA Cards */
.eta-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.eta-card {
  background: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.75rem;
}

.eta-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.35rem;
}

.eta-town {
  font-size: 0.75rem;
  font-weight: 700;
}

.eta-tag {
  font-size: 0.65rem;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-weight: 700;
}

.eta-tag.safe {
  background: rgba(16, 185, 129, 0.2);
  color: var(--accent-green);
}

.eta-tag.danger {
  background: rgba(244, 63, 94, 0.2);
  color: var(--accent-rose);
  animation: bannerPulse 1.5s infinite;
}

.eta-countdown {
  font-size: 1.1rem;
  font-weight: 800;
  font-family: monospace;
  color: var(--accent-cyan);
  margin-bottom: 0.25rem;
}

.eta-card.danger .eta-countdown {
  color: var(--accent-rose);
}

.eta-action {
  font-size: 0.68rem;
  color: var(--text-muted);
}

/* Lockout Panel */
.lockout-panel {
  margin-top: 0.5rem;
}

.btn-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 0.75rem;
}

.sim-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Buttons */
.btn {
  background: #1e293b;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.55rem 0.9rem;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-cyan);
}

.btn-primary {
  background: linear-gradient(135deg, #0284c7, #0369a1);
  border-color: #0284c7;
  color: white;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0369a1, #075985);
}

.btn-outline {
  background: transparent;
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-outline:hover {
  background: rgba(6, 182, 212, 0.1);
}

.btn-danger {
  background: #e11d48;
  border-color: #f43f5e;
  color: white;
  width: 100%;
}

.btn-danger:hover {
  background: #be123c;
}

.btn-warning {
  background: #d97706;
  border-color: #f59e0b;
  color: white;
}

.btn-warning:hover {
  background: #b45309;
}

.btn-secondary {
  background: #334155;
  border-color: #475569;
  color: white;
}

.btn-secondary:hover {
  background: #1e293b;
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-container {
  background: #131b2e;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}

.modal-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 1rem;
  font-weight: 700;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-close:hover {
  color: #fff;
}

.modal-body {
  padding: 1.25rem;
  overflow-y: auto;
}

.modal-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Chain of Custody Styling */
.coc-header-block {
  text-align: center;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
}

.coc-title {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.coc-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.coc-id {
  font-size: 0.75rem;
  margin-top: 0.5rem;
  background: #0f172a;
  padding: 0.35rem;
  border-radius: 4px;
}

.coc-table, .coc-telemetry-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
  font-size: 0.78rem;
}

.coc-table td {
  padding: 0.5rem;
  border: 1px solid var(--border-color);
}

.coc-section-title {
  font-size: 0.8rem;
  font-weight: 700;
  margin: 1rem 0 0.5rem 0;
  color: var(--accent-cyan);
}

.coc-telemetry-table th, .coc-telemetry-table td {
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  text-align: center;
}

.coc-telemetry-table th {
  background: #0f172a;
  color: var(--text-muted);
}

.coc-signatures {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.sig-box {
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.sig-line {
  height: 1px;
  background: #64748b;
  margin-bottom: 0.5rem;
}

@media print {
  body * {
    visibility: hidden;
  }
  #modal-coc, #modal-coc * {
    visibility: visible;
  }
  #modal-coc {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    background: #fff;
    color: #000;
  }
  .modal-container {
    border: none;
    box-shadow: none;
    color: #000;
    background: #fff;
  }
  .modal-header, .modal-footer {
    display: none;
  }
  .coc-header-block, .coc-table td, .coc-telemetry-table th, .coc-telemetry-table td {
    border-color: #000;
    color: #000;
  }
  .coc-telemetry-table th {
    background: #eee;
  }
}