:root {
  --bg-dark: #090d16;
  --bg-card: #111827;
  --bg-card-hover: #162035;
  --bg-header: rgba(15, 23, 42, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(16, 185, 129, 0.35);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-green: #10b981;
  --accent-cyan: #06b6d4;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  min-height: 100vh;
  padding-bottom: 50px;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  background: var(--bg-header);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 16px 0;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #10b981, #06b6d4);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
}

.logo-text h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-text h1 span {
  color: var(--accent-green);
}

.logo-text p {
  font-size: 13px;
  color: var(--text-secondary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Live Status Badge */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.status-pill .indicator-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
}

.status-pill.charging {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.4);
  color: #34d399;
}
.status-pill.charging .indicator-dot {
  background: var(--accent-green);
  box-shadow: 0 0 8px #10b981;
  animation: pulse-glow 1.5s infinite;
}

.status-pill.connected {
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.4);
  color: #60a5fa;
}
.status-pill.connected .indicator-dot {
  background: var(--accent-blue);
  box-shadow: 0 0 8px #3b82f6;
}

.status-pill.standby {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.3);
  color: #fbbf24;
}
.status-pill.standby .indicator-dot {
  background: var(--accent-amber);
}

.status-pill.error {
  background: rgba(244, 63, 94, 0.15);
  border-color: rgba(244, 63, 94, 0.4);
  color: #fb7185;
}
.status-pill.error .indicator-dot {
  background: var(--accent-rose);
  animation: pulse-glow 1s infinite;
}

@keyframes pulse-glow {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* Action Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-primary {
  background: var(--accent-green);
  color: #042416;
  border-color: transparent;
}
.btn-primary:hover {
  background: #059669;
  color: #fff;
}

/* Hero Telemetry Grid */
.telemetry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

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

.card-title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-icon {
  font-size: 16px;
}

.card-value {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-family: var(--font-mono);
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.card-unit {
  font-size: 16px;
  color: var(--text-secondary);
  font-weight: 500;
}

.card-subtext {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Power Card Highlights */
.card-power {
  background: linear-gradient(145deg, #111827, #0d231e);
  border-color: rgba(16, 185, 129, 0.2);
}
.card-power .card-value {
  color: #34d399;
}

.card-rewards {
  background: linear-gradient(145deg, #111827, #1e1338);
  border-color: rgba(139, 92, 246, 0.25);
}
.card-rewards .card-value {
  color: #c084fc;
}

/* Grizzl-E Club Rewards Banner */
.club-section {
  margin-top: 24px;
}

.club-card {
  background: linear-gradient(135deg, #151c30 0%, #1a1538 50%, #15222e 100%);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}

.club-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
}

.club-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(139, 92, 246, 0.2);
  border: 1px solid rgba(139, 92, 246, 0.5);
  color: #d8b4fe;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.club-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.club-stat-box {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 14px 18px;
}

.club-stat-label {
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.club-stat-val {
  font-size: 24px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
  margin-top: 4px;
}

/* Tier Progress Bar */
.tier-progress-container {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
}

.tier-progress-header {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  margin-bottom: 8px;
  font-weight: 600;
}

.progress-track {
  width: 100%;
  height: 12px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #10b981, #06b6d4, #8b5cf6);
  border-radius: var(--radius-full);
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.5);
}

.tier-scale-steps {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 11px;
  color: var(--text-muted);
}

/* Charts Section */
.telemetry-charts-section {
  margin-top: 32px;
}

.section-title-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
}

.section-title-bar h2 {
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-title-bar p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.charts-grid-2x2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(460px, 1fr));
  gap: 20px;
}

@media (max-width: 550px) {
  .charts-grid-2x2 {
    grid-template-columns: 1fr;
  }
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.chart-title {
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.chart-container {
  position: relative;
  height: 250px;
  width: 100%;
}

/* Filter Buttons */
.btn-group {
  display: inline-flex;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px;
  border: 1px solid var(--border-color);
}

.btn-tab {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-tab.active {
  background: var(--accent-green);
  color: #042416;
}

.btn-tab:hover:not(.active) {
  color: var(--text-primary);
}

/* Sessions Table */
.sessions-section {
  margin-top: 24px;
}

.table-responsive {
  overflow-x: auto;
  border-radius: var(--radius-md);
  margin-top: 16px;
}

table.sessions-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  text-align: left;
}

table.sessions-table th {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 11px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
}

table.sessions-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
}

table.sessions-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.session-row {
  cursor: pointer;
  transition: background 0.15s ease;
}

.session-row:hover td {
  background: rgba(16, 185, 129, 0.08) !important;
}

.session-badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-active {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
}
.badge-completed {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}

/* Modal Overlay & Dialog */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(5, 8, 16, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: #101728;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 1100px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
  overflow: hidden;
  transform: scale(0.95);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-box {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
}

.modal-title h3 {
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-title p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 3px;
}

.modal-close-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  transition: all 0.2s ease;
}

.modal-close-btn:hover {
  background: rgba(244, 63, 94, 0.2);
  border-color: rgba(244, 63, 94, 0.4);
  color: #fff;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
}

.session-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.session-kpi-card {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 12px 16px;
}

.session-kpi-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 600;
}

.session-kpi-value {
  font-size: 20px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
  margin-top: 4px;
}

.notice-banner {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  color: #93c5fd;
  font-size: 14px;
  line-height: 1.6;
}

.notice-banner-icon {
  font-size: 24px;
  flex-shrink: 0;
}

/* Footer */
.site-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-left {
  flex: 1;
  text-align: left;
}

.footer-center {
  flex: 1;
  text-align: center;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.footer-right {
  flex: 1;
  text-align: right;
  color: var(--text-secondary);
}

@media (max-width: 600px) {
  .footer-left, .footer-center, .footer-right {
    flex: 100%;
    text-align: center;
  }
}