:root {
  --bg-deep: #0a1219;
  --bg-gradient-start: #0d1f2d;
  --bg-gradient-end: #0a2a2a;
  --panel: #141b24;
  --panel-hover: #1a2330;
  --border: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(45, 212, 191, 0.25);
  --text: #e8edf4;
  --text-muted: #7b8a9e;
  --accent-teal: #2dd4bf;
  --accent-green: #10b981;
  --accent-purple: #8b5cf6;
  --accent-cyan: #22d3ee;
  --accent-red: #f87171;
  --accent-amber: #fbbf24;
  --font-sans: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --radius: 8px;
  --sidebar-w: 72px;
}

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

html,
body {
  height: 100%;
}

body {
  font-family: var(--font-sans);
  background: linear-gradient(145deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 50%, var(--bg-deep) 100%);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(45, 212, 191, 0.06), transparent),
    radial-gradient(ellipse 60% 40% at 90% 80%, rgba(139, 92, 246, 0.05), transparent);
  pointer-events: none;
  z-index: 0;
}

.app {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  background: rgba(10, 18, 25, 0.85);
  backdrop-filter: blur(12px);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.25rem 0;
  flex-shrink: 0;
}

.sidebar__logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  margin-bottom: 2rem;
}

.logo-icon {
  font-size: 1.5rem;
  filter: drop-shadow(0 0 8px rgba(45, 212, 191, 0.6));
}

.logo-text {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent-purple);
}

.sidebar__nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.nav-item {
  width: 44px;
  height: 44px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.nav-item svg {
  width: 22px;
  height: 22px;
}

.nav-item:hover {
  color: var(--text);
  background: var(--panel-hover);
}

.nav-item.active {
  color: var(--accent-teal);
  background: rgba(45, 212, 191, 0.1);
  border-color: var(--border-glow);
  box-shadow: 0 0 16px rgba(45, 212, 191, 0.15);
}

.sidebar__status {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding-top: 1rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

.status-dot--ok {
  background: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
}

.sidebar__status-label {
  font-size: 0.55rem;
  color: var(--text-muted);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  letter-spacing: 0.05em;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Main */
.main {
  flex: 1;
  padding: 1.5rem 2rem 2rem;
  overflow-y: auto;
  min-width: 0;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.breadcrumb {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.breadcrumb strong {
  color: var(--accent-teal);
  font-weight: 500;
}

.header__title {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.header__clock {
  text-align: right;
  padding: 0.75rem 1.25rem;
  background: rgba(20, 27, 36, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.clock-date {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.2rem;
}

.clock-time {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  color: var(--accent-teal);
  text-shadow: 0 0 20px rgba(45, 212, 191, 0.4);
  letter-spacing: 0.05em;
}

/* Filters */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  padding: 1rem 1.25rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 160px;
}

.filter-group label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 500;
}

.filter-group select {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg-deep);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s;
}

.filter-group select:hover,
.filter-group select:focus {
  border-color: var(--accent-teal);
}

.btn-reset {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  padding: 0.5rem 1rem;
  background: transparent;
  color: var(--accent-teal);
  border: 1px solid var(--border-glow);
  border-radius: 6px;
  cursor: pointer;
  margin-left: auto;
  transition: background 0.2s;
}

.btn-reset:hover {
  background: rgba(45, 212, 191, 0.1);
}

/* KPIs */
.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}

.kpi-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-teal), var(--accent-purple));
  opacity: 0.6;
}

.kpi-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-1px);
}

.kpi-card__label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.kpi-card__value {
  font-family: var(--font-mono);
  font-size: 1.65rem;
  font-weight: 600;
  color: var(--accent-teal);
  text-shadow: 0 0 12px rgba(45, 212, 191, 0.25);
}

.kpi-card__value--purple {
  color: var(--accent-purple);
  text-shadow: 0 0 12px rgba(139, 92, 246, 0.25);
}

.kpi-card__value--amber {
  color: var(--accent-amber);
}

.kpi-card__delta {
  font-size: 0.75rem;
  margin-top: 0.35rem;
  color: var(--text-muted);
}

.kpi-card__delta.positive {
  color: var(--accent-green);
}

.kpi-card__delta.negative {
  color: var(--accent-red);
}

/* Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
}

.card {
  grid-column: span 4;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

.card--wide {
  grid-column: span 8;
}

.card--forward {
  grid-column: span 6;
}

.card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.card__header h2 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.card__badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  background: rgba(45, 212, 191, 0.15);
  color: var(--accent-teal);
  border-radius: 4px;
}

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

.chart-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.chart-wrap canvas,
.candles-main canvas,
.candles-volume canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

.chart-wrap--donut {
  height: 200px;
}

.chart-wrap--bar {
  height: 240px;
}

.chart-wrap--matrix {
  height: 340px;
}

.chart-wrap--candles {
  display: grid;
  grid-template-rows: 3.4fr 1.6fr;
  gap: 0;
}

.candles-main,
.candles-volume {
  position: relative;
  min-height: 0;
}

.candles-volume {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 0.35rem;
}

.candles-volume__label {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-bottom: 0.15rem;
}

.candles-x-note {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 0.45rem;
}

.candles-footnote {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 0.9rem;
}

.card__subtitle {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  font-weight: 400;
}

.kendall-legend {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.75rem;
  font-size: 0.72rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.candle-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}

.candle-dot--up {
  background: rgba(16, 185, 129, 0.9);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.55);
}

.candle-dot--down {
  background: rgba(248, 113, 113, 0.9);
  box-shadow: 0 0 8px rgba(248, 113, 113, 0.55);
}

.kendall-legend__bar {
  width: 1px;
  height: 14px;
  margin: 0 0.4rem;
  border-left: 1px dashed rgba(255, 255, 255, 0.24);
}

.kendall-legend__hint {
  margin-left: auto;
  font-family: var(--font-sans);
  font-size: 0.7rem;
}

@media (max-width: 900px) {
  .kendall-legend__hint {
    margin-left: 0;
    width: 100%;
  }
}

/* Table */
.table-wrap {
  overflow-x: auto;
  max-height: 320px;
  overflow-y: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.data-table th {
  text-align: left;
  padding: 0.6rem 0.75rem;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--panel);
  z-index: 1;
}

.data-table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.data-table tbody tr:hover {
  background: var(--panel-hover);
}

.data-table .asset-name {
  font-family: var(--font-sans);
  font-weight: 500;
  color: var(--text);
}

.cell-highlight--ok {
  color: var(--accent-green);
  background: rgba(16, 185, 129, 0.12);
  border-radius: 4px;
  padding: 0.15rem 0.4rem;
}

.cell-highlight--warn {
  color: var(--accent-amber);
  background: rgba(251, 191, 36, 0.12);
  border-radius: 4px;
  padding: 0.15rem 0.4rem;
}

.cell-highlight--bad {
  color: var(--accent-red);
  background: rgba(248, 113, 113, 0.12);
  border-radius: 4px;
  padding: 0.15rem 0.4rem;
}

.sparkline-wrap {
  width: 80px;
  height: 28px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-weight: 500;
}

.status-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.status-badge--optimized {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
}

.status-badge--optimized::before {
  background: var(--accent-green);
  box-shadow: 0 0 6px var(--accent-green);
}

.status-badge--maintenance {
  background: rgba(251, 191, 36, 0.15);
  color: var(--accent-amber);
}

.status-badge--maintenance::before {
  background: var(--accent-amber);
}

.status-badge--peak {
  background: rgba(34, 211, 238, 0.15);
  color: var(--accent-cyan);
}

.status-badge--peak::before {
  background: var(--accent-cyan);
}

.status-badge--offline {
  background: rgba(248, 113, 113, 0.15);
  color: var(--accent-red);
}

.status-badge--offline::before {
  background: var(--accent-red);
}

/* Alerts */
.alerts {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-height: 240px;
  overflow-y: auto;
}

.alert-item {
  padding: 0.65rem 0.75rem;
  background: rgba(10, 18, 25, 0.5);
  border-left: 3px solid var(--accent-teal);
  border-radius: 0 6px 6px 0;
  font-size: 0.78rem;
}

.alert-item--warn {
  border-left-color: var(--accent-amber);
}

.alert-item--info {
  border-left-color: var(--accent-cyan);
}

.alert-item--ok {
  border-left-color: var(--accent-green);
}

.alert-item--crit {
  border-left-color: var(--accent-red);
}

.alert-item time {
  display: block;
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-bottom: 0.2rem;
  font-family: var(--font-mono);
}

.empty-state {
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 1.5rem;
  text-align: center;
}

@media (max-width: 1200px) {
  .card,
  .card--wide,
  .card--forward {
    grid-column: span 12;
  }
}

@media (max-width: 768px) {
  .main {
    padding: 1rem;
  }

  .clock-time {
    font-size: 1.5rem;
  }

  .filters {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-group {
    min-width: 100%;
  }

  .btn-reset {
    margin-left: 0;
  }
}