:root {
  --dusk-1: #262a63;
  --dusk-2: #6b4f9e;
  --dusk-3: #e58c8a;
  --dusk-4: #ffc99a;
  --ink: #1b1832;
  --night: #15132a;
  --panel: #201d3d;
  --line: rgba(255, 244, 232, 0.12);
  --paper: #fff4e8;
  --muted: #b9b0cf;
  --sakura: #ff9bb0;

  --ok: #8fd6b4;
  --warn: #ffc99a;
  --bad: #ff7a8a;
  --idle: #8c84a8;

  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei UI", "PingFang SC", sans-serif;
  --edge: clamp(1rem, 4vw, 2.5rem);
}

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

[hidden] {
  display: none !important;
}

html {
  background: var(--night);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--paper);
  font-family: var(--sans);
  font-size: 0.9375rem;
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p, dl, dd, ul {
  margin: 0;
}

/* ---------- masthead: the one branded moment ---------- */

.masthead {
  position: relative;
  overflow: hidden;
  background: linear-gradient(100deg, var(--dusk-1) 0%, var(--dusk-2) 45%, var(--dusk-3) 80%, var(--dusk-4) 100%);
  border-bottom: 1px solid rgba(0, 0, 0, 0.3);
}

.masthead__wires {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.masthead__wires .ink { fill: var(--ink); }
.masthead__wires .wires path { stroke: var(--ink); stroke-width: 1.6; opacity: 0.85; }

.masthead__inner {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  padding: 1.4rem var(--edge) 1.25rem;
  max-width: 76rem;
  margin: 0 auto;
}

.brand {
  color: var(--paper);
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 600;
  text-decoration: none;
  text-shadow: 0 0 0.4em rgba(255, 201, 154, 0.35);
}

.brand:hover { text-decoration: underline; text-underline-offset: 0.2em; }

.masthead__title {
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  opacity: 0.9;
}

/* The right end of the gradient is pale peach, so the session controls sit on their
   own ink plate to keep text and the sign-out button readable (WCAG AA or better). */
.session {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.3rem 0.35rem 0.3rem 0.85rem;
  background: rgba(21, 19, 42, 0.86);
  border: 1px solid rgba(255, 244, 232, 0.18);
  border-radius: 10px;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.session__expiry {
  font-size: 0.8125rem;
  color: var(--paper);
}

.session .button--ghost {
  border-color: rgba(255, 244, 232, 0.7);
}

/* ---------- layout ---------- */

.main {
  max-width: 76rem;
  margin: 0 auto;
  padding: 1.5rem var(--edge) 3rem;
  display: grid;
  gap: 1.25rem;
}

.board {
  display: grid;
  gap: 1.25rem;
}

.loading {
  color: var(--muted);
  text-align: center;
  padding: 3rem 0;
}

/* ---------- signed out ---------- */

.gate {
  justify-self: center;
  max-width: 30rem;
  margin-top: 12vh;
  text-align: center;
  display: grid;
  gap: 0.9rem;
  justify-items: center;
}

.gate__title {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
}

.gate__text {
  color: var(--muted);
}

/* ---------- toolbar ---------- */

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
}

.toolbar__time {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.8125rem;
}

.notice {
  padding: 0.35rem 0.75rem;
  color: var(--ink);
  background: var(--warn);
  border-radius: 6px;
  font-size: 0.8125rem;
  font-weight: 600;
}

/* ---------- panels ---------- */

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.25rem clamp(1rem, 2.5vw, 1.5rem) 1.4rem;
}

.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 0.9rem;
  margin-bottom: 1.1rem;
}

.panel__title {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 600;
}

.panel__sub {
  color: var(--muted);
  font-size: 0.8125rem;
}

.panel__error {
  color: var(--bad);
}

.panel__note {
  color: var(--muted);
  font-size: 0.8125rem;
}

.empty {
  color: var(--muted);
  font-size: 0.875rem;
}

/* A failed refresh keeps the last good data, dimmed, under the error message. */
.panel.is-stale .panel__error {
  margin-bottom: 0.9rem;
  color: var(--warn);
}

.panel.is-stale .server,
.panel.is-stale .services {
  opacity: 0.5;
  filter: saturate(0.4);
}

.toolbar__time.is-stale {
  color: var(--warn);
}

.subhead {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--muted);
  margin: 0 0 0.45rem;
}

.subhead:not(:first-child) {
  margin-top: 1.1rem;
}

/* ---------- server ---------- */

.server {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr) minmax(0, 0.9fr);
  gap: 1.5rem 2rem;
}

.server__name {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.facts {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.3rem 1rem;
  font-size: 0.875rem;
}

.facts dt {
  color: var(--muted);
}

.facts dd {
  overflow-wrap: anywhere;
}

.checks {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.3rem;
}

.checks li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.checks .check__label {
  min-width: 4.5em;
  color: var(--muted);
}

.meters {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.meter__line {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
}

.meter__label { color: var(--muted); }

.meter__bar {
  height: 6px;
  margin-top: 0.25rem;
  border-radius: 3px;
  background: rgba(255, 244, 232, 0.1);
  overflow: hidden;
}

.meter__fill {
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: var(--ok);
}

.meter__fill[data-level="warn"] { background: var(--warn); }
.meter__fill[data-level="bad"] { background: var(--bad); }

.server__terminal {
  display: grid;
  align-content: start;
  gap: 0.6rem;
}

.terminal__status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ---------- status dots & text ---------- */

.dot {
  flex: none;
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--idle);
}

[data-tone="ok"] > .dot, .dot[data-tone="ok"] { background: var(--ok); box-shadow: 0 0 0 3px rgba(143, 214, 180, 0.15); }
[data-tone="warn"] > .dot, .dot[data-tone="warn"] { background: var(--warn); }
[data-tone="bad"] > .dot, .dot[data-tone="bad"] { background: var(--bad); box-shadow: 0 0 0 3px rgba(255, 122, 138, 0.18); }

.tone-ok { color: var(--ok); }
.tone-warn { color: var(--warn); }
.tone-bad { color: var(--bad); }
.tone-idle { color: var(--muted); }

/* ---------- services ---------- */

.services {
  list-style: none;
  padding: 0;
}

.service + .service {
  border-top: 1px solid var(--line);
}

.service__row {
  display: grid;
  grid-template-columns: auto minmax(13rem, 1.2fr) minmax(5rem, 0.5fr) minmax(0, 1.6fr) auto;
  align-items: center;
  gap: 0.5rem 1rem;
  padding: 0.8rem 0;
}

.service__name {
  font-weight: 600;
}

.service__id {
  min-width: 0;
}

.service__unit {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--muted);
  font-size: 0.8125rem;
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
}

.service__status {
  font-weight: 600;
}

.service__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 1.1rem;
  font-size: 0.8125rem;
  color: var(--muted);
}

.service__meta div {
  display: flex;
  gap: 0.35rem;
}

.service__meta dd {
  color: var(--paper);
}

.logs {
  margin: 0 0 1rem 1.6rem;
  padding: 0.75rem 1rem;
  background: var(--night);
  border-radius: 8px;
}

.logs__state {
  color: var(--muted);
  font-size: 0.875rem;
}

.logs__state:empty { display: none; }

.logs__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.logs__table th {
  text-align: left;
  font-weight: 600;
  color: var(--muted);
  padding: 0.25rem 0.75rem 0.4rem 0;
  border-bottom: 1px solid var(--line);
}

.logs__table td {
  padding: 0.3rem 0.75rem 0.3rem 0;
  border-bottom: 1px solid rgba(255, 244, 232, 0.05);
}

/* ---------- buttons ---------- */

.button {
  display: inline-block;
  padding: 0.55rem 1.1rem;
  font: inherit;
  font-weight: 600;
  color: var(--ink);
  background: var(--paper);
  border: 0;
  border-radius: 8px;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
}

.button:hover { background: #ffe6cc; }

.button--ghost {
  padding: 0.35rem 0.85rem;
  color: var(--paper);
  background: transparent;
  border: 1px solid rgba(255, 244, 232, 0.4);
  font-weight: 500;
}

.button--ghost:hover { background: rgba(255, 244, 232, 0.1); }

.button:disabled { opacity: 0.55; cursor: progress; }

:focus-visible {
  outline: 3px solid var(--sakura);
  outline-offset: 2px;
}

/* ---------- responsive ---------- */

@media (max-width: 62rem) {
  .server {
    grid-template-columns: 1fr 1fr;
  }
  .server__terminal {
    grid-column: 1 / -1;
  }
}

@media (max-width: 40rem) {
  .masthead__inner { flex-wrap: wrap; }
  .server { grid-template-columns: 1fr; }
  .service__row {
    grid-template-columns: auto 1fr auto;
  }
  .service__meta { grid-column: 2 / -1; }
  .service__toggle { grid-column: 2 / -1; justify-self: start; }
  .logs { margin-left: 0; }
}