:root {
  --bg: #f3f1ec;
  --card: #fffdf9;
  --sunk: #ebe8e1;
  --line: #e2ded4;
  --line-strong: #cbc5b8;
  --ink: #17181a;
  --muted: #64676d;
  --faint: #8b8e94;
  --on: #1b7a4c;
  --on-soft: #dcefe3;
  --on-ink: #ffffff;
  --off: #66707f;
  --off-soft: #e6e8ec;
  --mixed: #9a5700;
  --mixed-soft: #f8ead5;
  --bad: #b3261e;
  --bad-soft: #f8e1de;
  --focus: #2f5fd0;
  --radius: 14px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111214;
    --card: #18191c;
    --sunk: #0d0e10;
    --line: #2a2c31;
    --line-strong: #3b3e45;
    --ink: #ecebe7;
    --muted: #a0a3a9;
    --faint: #777b82;
    --on: #4cc98a;
    --on-soft: #183326;
    --on-ink: #06140d;
    --off: #98a1af;
    --off-soft: #24272d;
    --mixed: #f0a742;
    --mixed-soft: #35281a;
    --bad: #ff7b6f;
    --bad-soft: #3b1e1c;
    --focus: #8aa9ff;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--ink); font: 15px/1.5 var(--sans); }
button, input { font: inherit; color: inherit; }
h1, h2, h3 { margin: 0; line-height: 1.2; }
p { margin: 0; }
code { font-family: var(--mono); font-size: .92em; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.kicker { font: 600 12px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.fine { font-size: 12.5px; color: var(--faint); line-height: 1.45; }
.error { min-height: 1.4em; color: var(--bad); font-size: 13.5px; }

/* buttons */
.btn { appearance: none; border: 1px solid var(--line-strong); background: var(--card); border-radius: 10px; padding: 10px 16px; font-weight: 600; cursor: pointer; transition: border-color .15s, background .15s; }
.btn:hover:not(:disabled) { border-color: var(--ink); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-ink { background: var(--ink); border-color: var(--ink); color: var(--bg); }
.btn-go { background: var(--on); border-color: var(--on); color: var(--on-ink); }
.btn-go:hover:not(:disabled) { border-color: var(--on); filter: brightness(1.06); }
.btn-stop { background: var(--card); }
.btn-danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.wide { width: 100%; }
.link-btn { border: 0; background: none; padding: 6px 4px; color: var(--muted); cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }

/* login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }
.login-card { width: min(100%, 400px); display: grid; gap: 14px; padding: 32px; background: var(--card); border: 1px solid var(--line); border-radius: 18px; }
.login-card h1 { font-size: 30px; letter-spacing: -.02em; }
.login-card label { display: grid; gap: 6px; font-size: 13.5px; font-weight: 600; }
.login-card input, .phrase input { width: 100%; padding: 11px 12px; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--bg); }
.login-card input:focus, .phrase input:focus { outline: 2px solid var(--focus); outline-offset: 0; border-color: transparent; }
.logo { display: block; border-radius: 8px; }

/* top bar */
.bar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: max(12px, env(safe-area-inset-top)) 20px 12px; background: color-mix(in srgb, var(--bg) 90%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.ident { display: flex; align-items: center; gap: 10px; min-width: 0; }
.chip { font: 500 12px/1 var(--mono); padding: 5px 8px; border-radius: 6px; background: var(--sunk); color: var(--muted); }
.bar-right { display: flex; align-items: center; gap: 12px; }
.fresh { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; color: var(--muted); white-space: nowrap; }
.fresh i { width: 8px; height: 8px; border-radius: 50%; background: var(--on); box-shadow: 0 0 0 3px var(--on-soft); }
.fresh.stale { color: var(--mixed); }
.fresh.stale i { background: var(--mixed); box-shadow: 0 0 0 3px var(--mixed-soft); }
.strip { padding: 8px 20px; text-align: center; font-size: 13.5px; font-weight: 600; background: var(--mixed-soft); color: var(--mixed); border-bottom: 1px solid var(--line); }

/* layout */
.page { max-width: 1120px; margin: 0 auto; padding-block: 24px 120px; padding-inline: 20px; display: grid; gap: 16px; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; min-width: 0; }
.card h2 { font: 600 12px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.card-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; margin-bottom: 4px; }
.card-head p { max-width: 520px; }
.foot { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 4px 4px 0; font-size: 12.5px; color: var(--faint); }

/* status */
.status { --state: var(--off); position: relative; overflow: hidden; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 28px; padding: 28px 28px 28px 34px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.status::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 6px; background: var(--state); }
.status[data-state="on"] { --state: var(--on); }
.status[data-state="mixed"] { --state: var(--mixed); }
.status-copy { display: grid; gap: 10px; align-content: center; }
.status h1 { font-size: clamp(30px, 4.6vw, 46px); font-weight: 700; letter-spacing: -.025em; }
.status h1 .pill { vertical-align: middle; margin-left: 10px; }
.lead { font-size: 17px; color: var(--muted); max-width: 560px; }
.main-switch { display: grid; gap: 10px; align-content: start; width: 270px; padding-left: 28px; border-left: 1px solid var(--line); }
.main-switch .btn { width: 100%; padding: 12px 16px; }

.pill { display: inline-block; padding: 4px 10px; border-radius: 999px; font: 700 12px/1.2 var(--mono); letter-spacing: .06em; text-transform: uppercase; background: var(--off-soft); color: var(--off); }
.pill[data-state="on"], .pill[data-state="on-limited"] { background: var(--on-soft); color: var(--on); }
.pill[data-state="mixed"] { background: var(--mixed-soft); color: var(--mixed); }

/* checks */
.checks, .systems, .activity, .links, .confirm-list { list-style: none; margin: 0; padding: 0; }
.checks li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 2px 12px; padding: 11px 0; border-top: 1px solid var(--line); }
.checks li:first-child { border-top: 0; }
.checks strong { font-weight: 600; }
.checks span.detail { grid-column: 2; font-size: 13.5px; color: var(--muted); }
.tick { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font: 700 12px/1 var(--sans); grid-row: span 2; margin-top: 1px; }
.tick[data-status="ok"] { background: var(--on-soft); color: var(--on); }
.tick[data-status="warn"] { background: var(--mixed-soft); color: var(--mixed); }
.tick[data-status="bad"] { background: var(--bad); color: #fff; }
.tick[data-status="unknown"] { background: var(--off-soft); color: var(--off); }

/* host */
.metric { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px 12px; padding: 11px 0; border-top: 1px solid var(--line); }
.metric:first-child { border-top: 0; }
.metric .value { font-variant-numeric: tabular-nums; font-weight: 600; text-align: right; }
.metric .sub { grid-column: 1 / -1; font-size: 12.5px; color: var(--faint); }
.meter { grid-column: 1 / -1; position: relative; height: 6px; border-radius: 99px; background: var(--off-soft); }
.meter i { display: block; height: 100%; width: var(--w, 0%); border-radius: inherit; background: var(--ink); opacity: .75; transition: width .4s ease; }
.meter[data-tone="warn"] i { background: var(--mixed); opacity: 1; }
.meter[data-tone="bad"] i { background: var(--bad); opacity: 1; }
.meter b { position: absolute; top: -4px; bottom: -4px; left: var(--x, 100%); width: 2px; border-radius: 1px; background: var(--mixed); }

/* systems */
.system { display: grid; grid-template-columns: 14px minmax(0, 1fr) auto; gap: 4px 14px; padding: 16px 0; border-top: 1px solid var(--line); }
.system:first-child { border-top: 0; }
.dot { width: 12px; height: 12px; margin-top: 5px; border-radius: 50%; border: 2px solid var(--off); background: transparent; }
.dot[data-state="on"], .dot[data-state="on-limited"], .dot[data-state="running"] { border-color: var(--on); background: var(--on); box-shadow: 0 0 0 4px var(--on-soft); }
.dot[data-state="mixed"] { border-color: var(--mixed); background: linear-gradient(90deg, var(--mixed) 50%, transparent 50%); }
.dot.sm { width: 9px; height: 9px; margin-top: 6px; box-shadow: none !important; }
.sys-body { min-width: 0; display: grid; gap: 3px; }
.sys-title { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.sys-title h3 { font-size: 16.5px; font-weight: 650; }
.sys-body .plain { color: var(--muted); font-size: 14px; }
.sys-body .meta { color: var(--faint); font-size: 13px; }
.sys-body .hint { color: var(--mixed); font-size: 13px; font-weight: 600; }
.parts { margin-top: 4px; }
.parts summary { cursor: pointer; width: max-content; font-size: 13px; color: var(--muted); }
.parts summary:hover { color: var(--ink); }
.parts ul { list-style: none; margin: 8px 0 0; padding: 0; }
.parts li { display: grid; grid-template-columns: 10px minmax(0, 1fr) auto; gap: 2px 10px; padding: 8px 0; border-top: 1px dashed var(--line); font-size: 13px; }
.parts li .role { color: var(--muted); }
.parts li code { color: var(--faint); font-size: 12px; overflow-wrap: anywhere; }
.parts li .since { color: var(--faint); text-align: right; white-space: nowrap; }
.parts li .note { grid-column: 2 / -1; color: var(--faint); font-size: 12px; }

.switch { align-self: start; display: inline-grid; grid-template-columns: 1fr 1fr; padding: 3px; border: 1px solid var(--line-strong); border-radius: 999px; background: var(--sunk); }
.seg { min-width: 58px; padding: 7px 14px; border: 0; border-radius: 999px; background: transparent; color: var(--muted); font-size: 13.5px; font-weight: 650; cursor: pointer; }
.seg:hover:not(:disabled) { color: var(--ink); background: var(--card); }
.seg[aria-pressed="true"].seg-on { background: var(--on); color: var(--on-ink); }
.seg[aria-pressed="true"].seg-off { background: var(--card); color: var(--ink); box-shadow: 0 1px 2px rgba(0, 0, 0, .12); }
.seg:disabled { cursor: not-allowed; }
.seg:disabled:not([aria-pressed="true"]) { opacity: .38; }

/* activity + links */
.activity li { display: grid; grid-template-columns: 10px minmax(0, 1fr) auto; gap: 12px; align-items: baseline; padding: 9px 0; border-top: 1px solid var(--line); font-size: 14px; }
.activity li:first-child { border-top: 0; }
.activity time { color: var(--faint); font-size: 12.5px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.activity .k { width: 8px; height: 8px; border-radius: 50%; background: var(--off); transform: translateY(-1px); }
.activity .k[data-kind="done"] { background: var(--on); }
.activity .k[data-kind="fail"], .activity .k[data-kind="warn"] { background: var(--bad); }
.activity .k[data-kind="request"] { background: var(--line-strong); }
.empty { color: var(--faint); font-size: 14px; padding: 8px 0; }

.links { display: grid; gap: 8px; }
.links a { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 11px 14px; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); text-decoration: none; font-weight: 600; }
.links a:hover { border-color: var(--ink); }
.links a[data-off="true"] { color: var(--muted); background: var(--sunk); }
.links a .url { font: 400 12px/1.3 var(--mono); color: var(--faint); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.links a .left { display: grid; min-width: 0; }

/* operation bar */
.opbar { position: fixed; left: 50%; bottom: max(16px, env(safe-area-inset-bottom)); transform: translateX(-50%); z-index: 6; width: min(560px, calc(100% - 32px)); display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 4px 14px; align-items: start; padding: 16px 18px; border-radius: 14px; background: var(--ink); color: var(--bg); box-shadow: 0 18px 50px rgba(0, 0, 0, .28); }
.opbar strong { font-size: 15px; }
.opbar .now { grid-column: 2 / -1; font-size: 13.5px; opacity: .8; }
.opbar ol { grid-column: 2 / -1; margin: 6px 0 0; padding: 0; list-style: none; font: 12.5px/1.6 var(--mono); opacity: .7; }
.opbar ol li::before { content: "✓ "; }
.opbar .elapsed { font: 12.5px var(--mono); opacity: .7; }
.opbar[data-tone="ok"] { background: var(--on); color: var(--on-ink); }
.opbar[data-tone="fail"] { background: var(--bad); color: #fff; }
.opbar .close { border: 0; background: none; color: inherit; font-size: 20px; line-height: 1; cursor: pointer; opacity: .8; padding: 0 2px; }
.spinner { width: 18px; height: 18px; margin-top: 1px; border-radius: 50%; border: 2.5px solid currentColor; border-right-color: transparent; animation: spin .8s linear infinite; }
.glyph { width: 18px; text-align: center; font-weight: 700; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 3s; } .meter i { transition: none; } }

/* dialog */
dialog { width: min(480px, calc(100% - 32px)); padding: 0; border: 1px solid var(--line); border-radius: 18px; background: var(--card); color: var(--ink); box-shadow: 0 24px 70px rgba(0, 0, 0, .3); }
dialog::backdrop { background: rgba(12, 12, 14, .5); }
dialog form { display: grid; gap: 14px; padding: 26px; }
dialog h2 { font-size: 24px; letter-spacing: -.015em; }
.confirm-list li { position: relative; padding: 7px 0 7px 24px; border-top: 1px solid var(--line); font-size: 14px; }
.confirm-list li:first-child { border-top: 0; }
.confirm-list li::before { content: "→"; position: absolute; left: 0; color: var(--faint); }
.phrase { display: grid; gap: 8px; padding: 14px; border-radius: 12px; background: var(--mixed-soft); font-size: 14px; }
.phrase b { font-family: var(--mono); }
.phrase input { font-family: var(--mono); letter-spacing: .06em; background: var(--card); }
.actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 4px; }

@media (max-width: 900px) {
  .two { grid-template-columns: 1fr; }
  .status { grid-template-columns: 1fr; padding: 24px 22px 22px 28px; }
  .main-switch { width: auto; padding: 18px 0 0; border-left: 0; border-top: 1px solid var(--line); grid-template-columns: 1fr 1fr; }
  .main-switch .kicker, .main-switch .fine { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .page { padding-inline: 16px; padding-top: 16px; }
  .bar { padding-inline: 16px; }
  .chip { display: none; }
  .card { padding: 16px; }
  .main-switch { grid-template-columns: 1fr; }
  .system { grid-template-columns: 14px minmax(0, 1fr); }
  .system .switch { grid-column: 2; justify-self: start; margin-top: 6px; }
  .parts li { grid-template-columns: 10px minmax(0, 1fr); }
  .parts li .since { grid-column: 2; text-align: left; }
  .activity li { grid-template-columns: 10px minmax(0, 1fr); }
  .activity time { grid-column: 2; }
}