:root {
  --bg: #fafaf9;
  --card: #ffffff;
  --card-soft: #f5f5f4;
  --text: #1c1917;
  --muted: #6f6a66;
  --faint: #a19c98;
  --border: #e7e5e4;
  --border-strong: #d6d3d1;
  --button-bg: #1c1917;
  --button-text: #ffffff;
  --operational: #1fa968;
  --degraded: #f2b200;
  --partial: #f7801a;
  --down: #e5484d;
  --maintenance: #3e7bdb;
  --nodata: #e7e5e4;
  --warn-bg: #fff7dc;
  --warn-border: #f5d774;
  --down-bg: #fff0f0;
  --down-border: #f5b5b7;
  --tooltip-bg: #1c1917;
  --tooltip-text: #fafaf9;
  --shadow: 0 1px 2px rgba(28, 25, 23, 0.04);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b0b0c;
    --card: #141416;
    --card-soft: #1b1b1e;
    --text: #f4f4f2;
    --muted: #a8a6a2;
    --faint: #75736f;
    --border: #26262a;
    --border-strong: #34343a;
    --button-bg: #f4f4f2;
    --button-text: #0b0b0c;
    --nodata: #2b2b30;
    --warn-bg: #2a2410;
    --warn-border: #5c4a12;
    --down-bg: #2c1415;
    --down-border: #6a2426;
    --tooltip-bg: #f4f4f2;
    --tooltip-text: #0b0b0c;
  }
}

:root[data-theme="dark"] {
  --bg: #0b0b0c;
  --card: #141416;
  --card-soft: #1b1b1e;
  --text: #f4f4f2;
  --muted: #a8a6a2;
  --faint: #75736f;
  --border: #26262a;
  --border-strong: #34343a;
  --button-bg: #f4f4f2;
  --button-text: #0b0b0c;
  --nodata: #2b2b30;
  --warn-bg: #2a2410;
  --warn-border: #5c4a12;
  --down-bg: #2c1415;
  --down-border: #6a2426;
  --tooltip-bg: #f4f4f2;
  --tooltip-text: #0b0b0c;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
button { font: inherit; color: inherit; }

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 16px 40px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Header */
.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}
.brand { display: inline-flex; color: var(--text); line-height: 0; }
.brand img, .brand svg { height: 26px; width: auto; }

.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--button-bg);
  color: var(--button-text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  border: 0;
  white-space: nowrap;
  cursor: pointer;
}
.button:hover { opacity: 0.88; }

.button-outline {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow);
}
.button-outline:hover { opacity: 1; background: var(--card-soft); }

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

/* Overall status */
.overall { margin-bottom: 20px; overflow: hidden; }
.overall-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 18px;
  font-size: 16px;
  font-weight: 600;
}
.overall-head .when { margin-left: auto; font-size: 13px; font-weight: 400; color: var(--muted); }
.overall.is-issue { border-color: var(--warn-border); }
.overall.is-issue .overall-head { background: var(--warn-bg); }
.overall.is-down { border-color: var(--down-border); }
.overall.is-down .overall-head { background: var(--down-bg); }
.overall-body { border-top: 1px solid var(--border); }
.overall.is-issue .overall-body { border-color: var(--warn-border); }
.overall.is-down .overall-body { border-color: var(--down-border); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; padding: 14px 18px 0; }
.chip {
  font-size: 13px;
  padding: 3px 9px;
  border-radius: 6px;
  background: var(--warn-bg);
  color: var(--text);
  border: 1px solid var(--warn-border);
}
.chip.down { background: var(--down-bg); border-color: var(--down-border); }
.active-item { display: flex; gap: 10px; padding: 14px 18px 16px; }
.active-item + .active-item { border-top: 1px solid var(--border); }
.active-item .title { font-weight: 500; }
.active-item .body { margin-top: 2px; }
.active-item .meta { margin-top: 4px; font-size: 13px; color: var(--muted); }

/* Icons */
.icon { width: 18px; height: 18px; flex: none; display: inline-block; vertical-align: middle; }
.icon-ok { color: var(--operational); }
.icon-warn { color: var(--degraded); }
.icon-partial { color: var(--partial); }
.icon-down { color: var(--down); }
.icon-nodata { color: var(--faint); }

/* System status */
.system-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.system-head h2 { margin: 0; font-size: 16px; font-weight: 600; }

.period {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  color: var(--muted);
}
.period button {
  display: inline-grid;
  place-items: center;
  width: 28px; height: 28px;
  border-radius: 6px;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.period button:hover:not(:disabled) { background: var(--card-soft); color: var(--text); }
.period button:disabled { opacity: 0.35; cursor: default; }
.period .label { min-width: 130px; text-align: center; font-variant-numeric: tabular-nums; }

.component { padding: 14px 18px 16px; }
.component + .component { border-top: 1px solid var(--border); }
.component-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  min-width: 0;
}
.component-name { font-weight: 500; white-space: nowrap; }
.component-desc {
  color: var(--faint);
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.component-uptime { margin-left: auto; color: var(--muted); font-size: 14px; white-space: nowrap; font-variant-numeric: tabular-nums; }

.bars {
  display: grid;
  grid-template-columns: repeat(var(--n, 90), minmax(0, 1fr));
  gap: 2px;
  height: 32px;
}
.bar {
  border: 0;
  padding: 0;
  border-radius: 2px;
  background: var(--nodata);
  cursor: pointer;
}
.bar:hover, .bar:focus-visible { filter: brightness(0.9); outline: none; }

.bars-scale {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 12px;
  color: var(--faint);
}

.center { display: flex; justify-content: center; margin-top: 24px; }

.legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 16px;
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--muted);
}
.legend li { display: inline-flex; align-items: center; gap: 6px; }
.swatch { width: 10px; height: 10px; border-radius: 2px; background: var(--nodata); }

/* Footer */
.footer {
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 16px;
  font-size: 12px;
  color: var(--faint);
}
.footer a { text-decoration: none; color: var(--muted); }
.footer a:hover { color: var(--text); }

/* History page */
.crumbs { font-size: 14px; color: var(--muted); margin: 0 0 18px; }
.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--text); }
.crumbs span { color: var(--text); }

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}
.tab {
  border: 0;
  background: none;
  padding: 10px 12px;
  font-size: 15px;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab:hover { color: var(--text); }
.tab[aria-selected="true"] { color: var(--text); font-weight: 500; border-bottom-color: var(--text); }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 24px;
}
.toolbar .period { margin-left: -6px; }

.filter { position: relative; }
.filter-button, .select {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--card);
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  box-shadow: var(--shadow);
}
.select { appearance: none; padding-right: 32px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; }
.filter-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  z-index: 20;
  min-width: 240px;
  padding: 6px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}
.filter-menu label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
}
.filter-menu label:hover { background: var(--card-soft); }
.filter-menu input { accent-color: var(--text); width: 15px; height: 15px; }
.filter-menu .clear {
  width: 100%;
  margin-top: 4px;
  padding: 8px 10px;
  border: 0;
  border-top: 1px solid var(--border);
  background: none;
  text-align: left;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
}

.month { margin-bottom: 36px; }
.month-title { font-size: 15px; font-weight: 600; margin: 0 0 4px; }
.month-empty { color: var(--muted); padding: 12px 0; margin: 0; border-bottom: 1px solid var(--border); }

.day-row {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 12px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.day-label { font-weight: 600; font-variant-numeric: tabular-nums; }
.day-label small { font-weight: 400; color: var(--faint); margin-left: 4px; font-size: 13px; }
.day-items { display: grid; gap: 14px; min-width: 0; }

.incident {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: none;
  padding: 0 0 0 14px;
  border-left: 3px solid var(--degraded);
  cursor: pointer;
}
.incident.impact-major { border-left-color: var(--partial); }
.incident.impact-critical, .incident.impact-outage { border-left-color: var(--down); }
.incident.impact-maintenance { border-left-color: var(--maintenance); }
.incident.impact-none { border-left-color: var(--border-strong); }
.incident-top { display: flex; gap: 12px; align-items: baseline; }
.incident-title { font-weight: 500; }
.incident-time { margin-left: auto; font-size: 13px; color: var(--faint); white-space: nowrap; }
.incident-summary { color: var(--muted); margin-top: 2px; }
.incident-meta { font-size: 13px; color: var(--faint); margin-top: 4px; }
.incident-updates { display: none; margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--border); }
.incident[aria-expanded="true"] .incident-updates { display: block; }
.incident[aria-expanded="true"] .incident-summary { display: none; }
.update + .update { margin-top: 10px; }
.update p { margin: 0; }
.update time { display: block; font-size: 12px; color: var(--faint); margin-top: 1px; }

.calendars {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}
.cal-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.cal-head strong { font-weight: 600; }
.cal-head span { font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
.cal-weekdays, .cal-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }
.cal-weekdays { font-size: 11px; color: var(--faint); text-align: center; margin-bottom: 4px; }
.cal-day { aspect-ratio: 1; border-radius: 4px; border: 0; padding: 0; background: var(--nodata); cursor: pointer; }
.cal-day.blank { background: transparent; cursor: default; }
.cal-day.future { opacity: 0.35; cursor: default; }

.note { color: var(--muted); font-size: 14px; }

/* Tooltip */
.tooltip {
  position: absolute;
  z-index: 30;
  max-width: 260px;
  background: var(--tooltip-bg);
  color: var(--tooltip-text);
  font-size: 12.5px;
  line-height: 1.45;
  padding: 9px 11px;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  pointer-events: none;
}
.tooltip strong { display: block; font-size: 13px; margin-bottom: 2px; }

/* Day colours: after .bar/.swatch/.cal-day so they win the cascade. */
.b-operational.b-operational { background: var(--operational); }
.b-degraded.b-degraded { background: var(--degraded); }
.b-partial.b-partial { background: var(--partial); }
.b-down.b-down { background: var(--down); }

@media (max-width: 640px) {
  .container { padding-top: 20px; }
  .masthead { margin-bottom: 20px; }
  .brand img, .brand svg { height: 20px; }
  .button { font-size: 13px; padding: 7px 11px; }
  .component-desc { display: none; }
  .bars { height: 28px; }
  .period .label { min-width: 0; }
  .calendars { grid-template-columns: 1fr; gap: 24px; }
  .day-row { grid-template-columns: 1fr; gap: 8px; }
  .incident-top { flex-direction: column; gap: 0; }
  .incident-time { margin-left: 0; }
  .filter-menu { left: 0; right: auto; }
  .overall-head { flex-wrap: wrap; row-gap: 2px; }
  .overall-head .when { flex-basis: 100%; margin-left: 28px; }
}