:root {
  --bg-main: #f1f5ff;
  --bg-secondary: #e2ebff;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-border: rgba(122, 148, 198, 0.35);
  --text: #17253f;
  --muted: #607290;

  --tone-a: #e8f0ff;
  --tone-b: #ffffff;

  --up: #26bf75;
  --down: #ef5f6f;
  --unknown: #7f8da8;
  --btn-ghost-bg: rgba(255, 255, 255, 0.64);
  --btn-ghost-bg-hover: rgba(255, 255, 255, 0.9);
  --btn-ghost-text: #2a3d5c;
  --btn-primary-from: #4fc4ff;
  --btn-primary-to: #63f2be;
  --btn-primary-text: #06203b;

  --radius: 16px;
  --shadow: 0 12px 40px rgba(26, 47, 89, 0.14);
  --font-size: 16px;
}

body.theme-dark {
  --bg-main: #0f1422;
  --bg-secondary: #161f33;
  --panel: rgba(20, 29, 47, 0.86);
  --panel-border: rgba(98, 126, 176, 0.4);
  --text: #edf3ff;
  --muted: #afbeda;

  --up: #50d498;
  --down: #ff7d8a;
  --unknown: #92a6ca;
  --btn-ghost-bg: rgba(34, 50, 82, 0.9);
  --btn-ghost-bg-hover: rgba(45, 68, 108, 0.95);
  --btn-ghost-text: #d5e4ff;
  --btn-primary-from: #67baff;
  --btn-primary-to: #62eac1;
  --btn-primary-text: #08243e;

  --shadow: 0 12px 40px rgba(2, 7, 16, 0.5);
}

* {
  box-sizing: border-box;
}

.material-symbols-outlined {
  font-size: 20px;
  line-height: 1;
  user-select: none;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--text);
  font-size: var(--font-size);
  background:
    radial-gradient(circle at 8% 8%, color-mix(in srgb, var(--tone-a) 65%, transparent), transparent 40%),
    radial-gradient(circle at 95% 14%, color-mix(in srgb, var(--tone-b) 35%, transparent), transparent 38%),
    linear-gradient(160deg, var(--bg-main), var(--bg-secondary));
}

.hidden {
  display: none !important;
}

.app {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 14px;
  display: grid;
  gap: 14px;
  animation: fade-up 260ms ease-out;
}

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

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px) saturate(130%);
  padding: 10px 12px;
}

.user-box {
  min-width: 0;
  display: grid;
  gap: 2px;
}

.label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

#user-info {
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

button,
input,
select {
  border-radius: 12px;
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.68);
  color: var(--text);
  font: inherit;
  padding: 10px;
}

body.theme-dark button:not(.primary):not(.ghost),
body.theme-dark input,
body.theme-dark select {
  background: rgba(16, 26, 44, 0.78);
}

button {
  cursor: pointer;
  font-weight: 700;
}

button.icon-btn {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

button.primary {
  border: none;
  color: var(--btn-primary-text);
  background: linear-gradient(130deg, var(--btn-primary-from), var(--btn-primary-to));
  box-shadow: 0 6px 16px rgba(69, 158, 247, 0.28);
}

button.ghost {
  background: var(--btn-ghost-bg);
  color: var(--btn-ghost-text);
}

button.ghost:hover {
  background: var(--btn-ghost-bg-hover);
}

button.primary .material-symbols-outlined {
  font-variation-settings: "FILL" 1;
}

body.theme-dark button.primary {
  color: var(--btn-primary-text);
  background: linear-gradient(130deg, var(--btn-primary-from), var(--btn-primary-to));
  box-shadow: 0 0 0 1px rgba(103, 186, 255, 0.45), 0 10px 24px rgba(26, 122, 207, 0.45);
}

body.theme-dark button.ghost {
  background: var(--btn-ghost-bg);
  color: var(--btn-ghost-text);
}

body.theme-dark button.ghost:hover {
  background: var(--btn-ghost-bg-hover);
}

button:focus,
input:focus,
select:focus {
  outline: 2px solid color-mix(in srgb, #4fc4ff 50%, transparent);
  border-color: transparent;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.metric {
  border: 1px solid var(--panel-border);
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 10px;
  text-align: center;
}

.metric span {
  display: block;
  font-size: 28px;
  font-weight: 800;
  line-height: 1.1;
}

.metric small {
  color: var(--muted);
}

.metric.up span {
  color: var(--up);
}

.metric.down span {
  color: var(--down);
}

.target-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
}

.target-card {
  border: 1px solid var(--panel-border);
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--tone-a) 48%, var(--panel)), color-mix(in srgb, var(--tone-b) 50%, var(--panel)));
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 12px;
  display: grid;
  gap: 10px;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.target-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 44px rgba(26, 47, 89, 0.2);
}

body.theme-dark .target-card {
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--tone-a) 18%, var(--panel)), color-mix(in srgb, var(--tone-b) 16%, var(--panel)));
}

.target-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: start;
}

.target-name {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.15;
}

.target-host {
  color: var(--muted);
  font-size: 12px;
  margin-top: 4px;
}

.status {
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 800;
  border: 1px solid transparent;
}

.status.up {
  background: color-mix(in srgb, var(--up) 22%, #ffffff);
  color: #0b5535;
}

.status.down {
  background: color-mix(in srgb, var(--down) 20%, #ffffff);
  color: #6e1d2e;
}

.status.unknown {
  background: color-mix(in srgb, var(--unknown) 22%, #ffffff);
  color: #2f3f5d;
}

.zone-list {
  display: grid;
  gap: 6px;
}

.zone-pill {
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  padding: 8px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 12px;
}

.zone-status {
  font-weight: 700;
}

.zone-status.up {
  color: var(--up);
}

.zone-status.down {
  color: var(--down);
}

.zone-status.unknown {
  color: var(--unknown);
}

.card-footer {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
}

.last-checked {
  font-size: 12px;
  color: var(--muted);
}

.action-group {
  display: flex;
  gap: 6px;
}

.action-group button {
  padding: 8px 10px;
  font-size: 12px;
  min-width: 36px;
  height: 36px;
}

.empty-card {
  border: 1px dashed var(--panel-border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  color: var(--muted);
  background: var(--panel);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 20;
  background: rgba(6, 10, 20, 0.5);
  display: grid;
  place-items: center;
  padding: 16px;
}

.modal-card {
  width: min(720px, 100%);
  max-height: 90vh;
  overflow: auto;
  border-radius: 18px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 14px;
}

.modal-card.compact {
  width: min(420px, 100%);
}

.modal-card.wide {
  width: min(900px, 100%);
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.modal-head h2 {
  margin: 0;
  font-size: 18px;
}

.modal-head-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.target-form {
  display: grid;
  gap: 10px;
}

.target-form label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

.two-col {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr 1fr;
}

.target-form label.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}

.checkbox-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin: 0;
}

.target-form-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.history-list {
  display: grid;
  gap: 8px;
}

.history-row {
  border: 1px solid var(--panel-border);
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border-radius: 12px;
  padding: 9px;
  display: grid;
  gap: 4px;
}

.history-top {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
  font-size: 13px;
}

.history-meta {
  font-size: 12px;
  color: var(--muted);
}

.detail-meta {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.detail-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 10px;
}

.detail-metric {
  border: 1px solid var(--panel-border);
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border-radius: 12px;
  padding: 10px;
  display: grid;
  gap: 4px;
  cursor: pointer;
  transition: border-color 120ms ease, background 120ms ease;
}

.detail-metric.active {
  border-color: color-mix(in srgb, #4fc4ff 50%, var(--panel-border));
  background: color-mix(in srgb, #4fc4ff 16%, var(--panel));
}

.detail-metric small {
  color: var(--muted);
  font-size: 11px;
}

.detail-metric strong {
  font-size: 18px;
  line-height: 1.15;
}

.metric-breakdown {
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 10px;
  margin-bottom: 10px;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
}

.metric-breakdown h4 {
  margin: 0 0 8px;
  font-size: 13px;
}

.metric-breakdown-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 0;
  border-top: 1px dashed color-mix(in srgb, var(--panel-border) 65%, transparent);
  font-size: 13px;
}

.metric-breakdown-row:first-of-type {
  border-top: 0;
}

.zone-timeline-list {
  display: grid;
  gap: 7px;
  margin-bottom: 10px;
}

.zone-strip-row {
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  padding: 8px;
  display: grid;
  grid-template-columns: 140px 1fr 132px;
  gap: 8px;
  align-items: center;
  color: var(--text);
  cursor: pointer;
}

.zone-strip-row.active {
  border-color: color-mix(in srgb, #4fc4ff 50%, var(--panel-border));
}

.zone-strip-name {
  font-size: 13px;
  font-weight: 700;
}

.zone-strip-sla {
  text-align: right;
  color: var(--text);
  font-size: 20px;
  line-height: 1;
  font-weight: 800;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.zone-strip-bars {
  display: flex;
  align-items: end;
  gap: 3px;
  min-height: 28px;
}

.zone-strip-bar {
  width: 8px;
  height: 26px;
  border-radius: 2px;
  background: var(--unknown);
  opacity: 0.8;
}

.zone-strip-bar.up {
  background: var(--up);
}

.zone-strip-bar.down {
  background: var(--down);
}

.zone-strip-bar.degraded {
  background: #f6b74f;
}

.zone-strip-bar.unknown {
  background: var(--unknown);
}

.zone-checks-panel {
  margin-bottom: 10px;
}

.chart-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 10px;
  margin: 2px 0 10px;
}

.chart-controls label {
  display: grid;
  gap: 4px;
  color: var(--muted);
  font-size: 12px;
}

.zone-charts {
  display: grid;
  gap: 10px;
}

.zone-chart-card {
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 10px;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
}

.zone-chart-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.zone-chart-head strong {
  font-size: 14px;
}

.zone-chart-head span {
  color: var(--muted);
  font-size: 12px;
}

.chart-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.chart-wrap {
  position: relative;
}

.chart-wrap p {
  margin: 0 0 6px;
  font-size: 12px;
  color: var(--muted);
}

.chart-wrap canvas {
  width: 100%;
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 95%, transparent);
}

.chart-tooltip {
  position: absolute;
  transform: translate(-50%, -100%);
  padding: 5px 6px;
  border-radius: 8px;
  background: rgba(4, 10, 19, 0.92);
  color: #f3f7ff;
  font-size: 11px;
  line-height: 1.2;
  white-space: pre;
  pointer-events: none;
  z-index: 2;
}

.detail-history-head {
  margin: 2px 0 8px;
  font-size: 14px;
}

@media (max-width: 860px) {
  .topbar {
    align-items: start;
    flex-direction: column;
  }

  .top-actions {
    width: 100%;
  }

  .top-actions button {
    flex: 1;
  }

  .two-col {
    grid-template-columns: 1fr;
  }

  .detail-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .zone-strip-row {
    grid-template-columns: 1fr auto;
    gap: 6px;
  }

  .zone-strip-name {
    grid-column: 1 / -1;
  }

  .zone-strip-bars {
    grid-column: 1;
  }

  .zone-strip-sla {
    grid-column: 2;
    text-align: right;
  }

  .chart-pair {
    grid-template-columns: 1fr;
  }

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