:root {
  color-scheme: dark;
  --bg: #121619;
  --surface: #1a2024;
  --raised: #222a2f;
  --line: #2e383e;
  --text: #e4e9ec;
  --muted: #8e9ba3;
  --accent: #7fb2e5;
  --ok: #4fbf74;
  --warn: #e0a13a;
  --down: #e5604f;
  --idle: #4a555c;
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
  --radius: 6px;
  --gutter: clamp(16px, 4vw, 40px);
}

* { box-sizing: border-box; }

html { background: var(--bg); }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-variant-numeric: tabular-nums;
}

[hidden] { display: none !important; }

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: 1.45rem; }
h2 { font-size: 1.05rem; }
h3 { font-size: 0.9rem; color: var(--muted); font-weight: 500; margin: 1.25rem 0 0.5rem; }
p { margin: 0; }

.mono { font-family: var(--mono); font-size: 0.86em; }
.muted { color: var(--muted); }
code, pre { font-family: var(--mono); font-size: 0.85rem; }

/* ---------- controls ---------- */

input, select, textarea, button { font: inherit; color: inherit; }

input, select, textarea {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.5rem 0.65rem;
  min-width: 0;
}
input::placeholder { color: #6b777e; }

button {
  border: 0;
  border-radius: var(--radius);
  padding: 0.5rem 0.9rem;
  background: var(--accent);
  color: #0e1a26;
  font-weight: 600;
  cursor: pointer;
}
button.secondary { background: var(--raised); color: var(--text); box-shadow: inset 0 0 0 1px var(--line); }
button.quiet, button.link { background: none; color: var(--accent); padding: 0.35rem 0.5rem; font-weight: 500; }
button.link { padding: 0; }
button.danger { background: var(--down); color: #1b0905; }
button.danger-quiet { background: none; color: var(--down); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--down) 45%, transparent); }
button:disabled { opacity: 0.45; cursor: not-allowed; }
button:not(:disabled):hover { filter: brightness(1.08); }

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

label { display: grid; gap: 0.3rem; font-size: 0.88rem; color: var(--muted); }
label > input, label > select { color: var(--text); font-size: 0.95rem; }
label.check, label.radio { display: flex; align-items: baseline; gap: 0.5rem; color: var(--text); font-size: 0.95rem; }
label.radio .muted { font-size: 0.85rem; }

.stack { display: grid; gap: 0.9rem; }
.error { color: var(--down); font-size: 0.88rem; min-height: 1.2em; }
.hint { color: var(--muted); font-size: 0.88rem; }

fieldset.choice { border: 0; padding: 0; margin: 0; display: grid; gap: 0.45rem; }
fieldset.choice legend { font-size: 0.88rem; color: var(--muted); margin-bottom: 0.4rem; padding: 0; }

details > summary { cursor: pointer; color: var(--accent); font-size: 0.9rem; }
details.advanced[open] { display: grid; gap: 0.9rem; }

/* ---------- sign in ---------- */

.auth { min-height: 100vh; display: grid; place-items: center; padding: var(--gutter); }
.auth-card {
  width: min(400px, 100%);
  display: grid;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.75rem;
}
.auth-card .quiet { justify-self: start; padding-left: 0; }
.wordmark { font-family: var(--mono); font-size: 0.95rem; color: var(--muted); white-space: nowrap; }
.wordmark::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 0.5rem;
  border-radius: 1px;
  background: var(--ok);
  box-shadow: 10px 0 0 var(--ok), 20px 0 0 var(--idle);
  margin-right: 1.8rem;
  vertical-align: 1px;
}
.qr { background: #fff; padding: 10px; border-radius: 8px; justify-self: start; }
.qr svg { display: block; width: 200px; height: 200px; }
.manual-key code { display: block; margin-top: 0.5rem; letter-spacing: 0.06em; word-break: break-all; }

/* ---------- app frame ---------- */

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem var(--gutter);
  border-bottom: 1px solid var(--line);
}
.account { display: flex; align-items: center; gap: 0.25rem; flex-wrap: wrap; justify-content: flex-end; }
.account .who { margin-right: 0.5rem; font-size: 0.9rem; }

main { max-width: 1180px; margin: 0 auto; padding: 1.5rem var(--gutter) 2rem; display: grid; gap: 1.75rem; }

.overview { display: grid; gap: 1rem; }
.headline { font-size: 1.6rem; font-weight: 600; letter-spacing: -0.02em; display: flex; flex-wrap: wrap; align-items: center; gap: 0.25rem 0; }
.headline .sep { width: 1px; height: 1.1em; background: var(--line); margin: 0 0.85rem; }
.headline .muted { font-weight: 500; font-size: 1.1rem; }
.h-down { color: var(--down); }
.h-warn { color: var(--warn); }
.h-ok { color: var(--text); }

.controls { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.controls input[type="search"] { flex: 1 1 18rem; }
.controls select { flex: 0 1 15rem; }

/* ---------- rows ---------- */

.rows { list-style: none; margin: 0; padding: 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--surface); }
.rows > li + li { border-top: 1px solid var(--line); }

.row {
  width: 100%;
  display: grid;
  grid-template-columns: 12px minmax(11rem, 1.5fr) 7.5rem 9.5rem minmax(12rem, 1.6fr) 8rem;
  align-items: center;
  gap: 0 1rem;
  padding: 0.7rem 1rem;
  background: none;
  color: var(--text);
  font-weight: 400;
  text-align: left;
  border-radius: 0;
}
.row:hover { background: var(--raised); filter: none; }
.row:focus-visible { outline-offset: -2px; }

.light { width: 10px; height: 10px; border-radius: 50%; background: var(--idle); }
.level-ok .light { background: var(--ok); }
.level-warn .light { background: var(--warn); }
.level-down .light { background: var(--down); box-shadow: 0 0 0 3px color-mix(in srgb, var(--down) 25%, transparent); }
.level-paused .light { background: transparent; box-shadow: inset 0 0 0 2px var(--idle); }

.ident { display: grid; min-width: 0; }
.ident .name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ident .sub { color: var(--muted); font-size: 0.83rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.addr { color: var(--muted); }

.state { display: grid; gap: 0.1rem; font-size: 0.9rem; min-width: 0; }
.problem { color: var(--text); }
.level-down .problem { color: var(--down); }
.level-warn .problem { color: var(--warn); }
.level-paused .problem, .level-waiting .problem { color: var(--muted); }
.metrics { display: flex; gap: 1rem; flex-wrap: wrap; }
.metric .k { color: var(--muted); font-size: 0.8rem; margin-right: 0.15rem; }
.checked { color: var(--warn); font-size: 0.82rem; text-align: right; white-space: nowrap; }
.level-paused .ident .name { color: var(--muted); }

/* port lights: the router's front panel in miniature */
.ports {
  justify-self: start;
  display: inline-flex;
  flex-wrap: wrap;
  gap: 3px;
  padding: 4px 5px;
  background: #0b0e10;
  border-radius: 3px;
  box-shadow: inset 0 0 0 1px #262e33;
  min-width: 2.25rem;
  min-height: 18px;
}
.ports.empty { background: transparent; box-shadow: none; }
.port { display: block; width: 9px; height: 10px; border-radius: 1.5px; background: var(--idle); }
.port.up { background: var(--ok); box-shadow: 0 0 4px color-mix(in srgb, var(--ok) 60%, transparent); }
.port.down { background: var(--down); }
.port.idle { background: #384248; }

/* ---------- sections ---------- */

.attention h2 { color: var(--down); margin-bottom: 0.6rem; }
.attention .rows { border-color: color-mix(in srgb, var(--down) 40%, var(--line)); }

.fleet { display: grid; gap: 1.5rem; }
.client h2 { margin-bottom: 0.6rem; display: flex; align-items: baseline; gap: 0.6rem; }
.client .count { color: var(--muted); font-weight: 400; font-size: 0.85rem; }
.none { padding: 0.25rem 0; }

.empty-state { border: 1px dashed var(--line); border-radius: 10px; padding: 2.5rem; display: grid; gap: 0.75rem; justify-items: start; max-width: 36rem; }

.activity h2 { margin-bottom: 0.6rem; }
.events { list-style: none; margin: 0; padding: 0; display: grid; font-size: 0.9rem; max-width: 52rem; }
.events li { display: grid; grid-template-columns: 6.5rem 1fr; gap: 1rem; padding: 0.4rem 0; border-bottom: 1px solid var(--line); }
.events time { color: var(--muted); }
.events li.bad span { color: var(--warn); }

.hub { padding: 1rem var(--gutter) 2rem; max-width: 1180px; margin: 0 auto; font-size: 0.83rem; }

/* ---------- dialogs ---------- */

dialog {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.25rem 1.5rem 1.5rem;
  width: min(460px, calc(100vw - 2rem));
  max-height: calc(100vh - 2rem);
}
dialog.wide { width: min(760px, calc(100vw - 2rem)); }
dialog::backdrop { background: rgb(5 8 10 / 0.65); }
.dialog-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; margin-bottom: 1rem; }
.dialog-head .quiet { margin: -0.3rem -0.5rem 0 0; }

.detail-status { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; padding: 0.7rem 0.9rem; border-radius: 8px; background: var(--raised); }
.detail-status .muted { margin-left: auto; font-size: 0.85rem; }
.detail-status.level-down { color: var(--down); }
.detail-status.level-warn { color: var(--warn); }

.facts { display: grid; grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr)); gap: 0.85rem 1.25rem; margin: 1.1rem 0 0; }
.facts dt { color: var(--muted); font-size: 0.8rem; }
.facts dd { margin: 0.1rem 0 0; overflow-wrap: anywhere; }

.port-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.3rem; font-size: 0.9rem; }
.port-list li.muted { display: block; }
.port-list li { display: grid; grid-template-columns: 12px 9rem 1fr auto; gap: 0.75rem; align-items: center; }
.pstate { font-size: 0.82rem; color: var(--muted); }
.pstate.down { color: var(--down); }

#cpu-chart { width: 100%; height: 120px; display: block; }

.detail-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.detail-actions .spacer { flex: 1; }

.setup-body textarea {
  width: 100%;
  margin: 0;
  background: #0b0e10;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.65rem 0.75rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  white-space: pre;
  overflow-x: auto;
  resize: vertical;
}
#setup-dialog .hint { margin-top: 1.1rem; }

.user-list { list-style: none; margin: 0 0 1.25rem; padding: 0; display: grid; gap: 0.6rem; }
.user-list li { display: grid; gap: 0.5rem; padding: 0.75rem 0.9rem; border: 1px solid var(--line); border-radius: 8px; }
.user-list li.disabled { opacity: 0.6; }
.u-main { display: grid; gap: 0.1rem; }
.u-main .muted { font-size: 0.85rem; }
.u-actions { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.u-actions select, .u-actions button { padding: 0.35rem 0.65rem; font-size: 0.85rem; }

.inline-form { display: grid; grid-template-columns: 1fr 1fr auto auto; gap: 0.6rem; align-items: end; border-top: 1px solid var(--line); padding-top: 1rem; }
.inline-form h3 { grid-column: 1 / -1; margin: 0; }
#users-dialog .hint { margin-top: 0.8rem; }

/* ---------- toast ---------- */

.toast {
  position: fixed;
  inset: auto;
  margin: 0;
  color: var(--text);
  left: 50%;
  bottom: calc(1.25rem + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  max-width: min(32rem, calc(100vw - 2rem));
  padding: 0.65rem 1rem;
  border-radius: 8px;
  background: var(--raised);
  border: 1px solid var(--line);
  border-left: 4px solid var(--ok);
  box-shadow: 0 8px 24px rgb(0 0 0 / 0.35);
  z-index: 10;
}
.toast[data-kind="error"] { border-left-color: var(--down); }

@media (prefers-reduced-motion: no-preference) {
  .toast:popover-open, .toast:not([popover]):not([hidden]) { animation: rise 160ms ease-out; }
  @keyframes rise { from { opacity: 0; transform: translate(-50%, 6px); } }
}

/* ---------- narrow screens ---------- */

@media (max-width: 900px) {
  .row {
    grid-template-columns: 12px minmax(0, 1fr) auto;
    grid-template-areas:
      "light ident ports"
      ". state state"
      ". checked checked";
    gap: 0.3rem 0.75rem;
  }
  .row .light { grid-area: light; }
  .row .ident { grid-area: ident; }
  .row .ports { grid-area: ports; justify-self: end; }
  .row .state { grid-area: state; }
  .row .addr { display: none; }
  .row .checked { grid-area: checked; text-align: left; }
  .row .checked:empty { display: none; }
}

@media (max-width: 560px) {
  .topbar { padding-block: 0.5rem; }
  .account .who { display: none; }
  .account { flex-wrap: nowrap; gap: 0; }
  .account button { font-size: 0.88rem; }
  .account button { padding-inline: 0.4rem; }
  .headline { font-size: 1.3rem; column-gap: 0.9rem; }
  .headline .sep { display: none; }
  .headline .muted { font-size: 1rem; }
  .controls select, .controls button { flex: 1 1 auto; }
  .events li { grid-template-columns: 1fr; gap: 0; }
  dialog, dialog.wide { width: 100vw; max-width: 100vw; max-height: 100dvh; margin: auto 0 0; border-radius: 12px 12px 0 0; }
  .inline-form { grid-template-columns: 1fr; }
  .port-list li { grid-template-columns: 12px 1fr auto; }
  .port-list li .muted { display: none; }
  .detail-actions .spacer { display: none; }
}

.setup-foot { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.setup-foot .muted { font-size: 0.85rem; }

.pw-box { display: grid; gap: 0.6rem; padding: 0.85rem 1rem; border-radius: 8px; background: var(--raised); margin: 0.75rem 0 1rem; }
.pw-notice { color: var(--warn); }
.pw-box.changing .pw-notice { display: none; }
.pw-row { display: flex; align-items: flex-end; gap: 0.5rem; flex-wrap: wrap; }
.pw-row label { flex: 1 1 14rem; }
.pw-change { margin-top: 0.6rem; font-size: 0.88rem; }