:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #16181d;
  --muted: #5f6673;
  --line: #e3e6eb;
  --accent: #0f766e;
  --up: #16a34a;
  --degraded: #d97706;
  --down: #dc2626;
  --none: #c4c9d2;
  --radius: 12px;
  --shadow: 0 1px 2px rgb(16 24 40 / 6%), 0 1px 3px rgb(16 24 40 / 8%);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #171a21;
    --text: #e8eaee;
    --muted: #9aa1ad;
    --line: #2a2f39;
    --accent: #2dd4bf;
    --up: #22c55e;
    --degraded: #f59e0b;
    --down: #f87171;
    --none: #3b414d;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

code { font: 0.9em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.wrap { max-width: 960px; margin: 0 auto; padding: 0 16px; }

/* header */
.top { background: var(--surface); border-bottom: 1px solid var(--line); }
.top__row { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; font-weight: 650; font-size: 17px; }
.brand small { color: var(--muted); font-weight: 400; font-size: 14px; }
main.wrap { padding-top: 28px; padding-bottom: 40px; }

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

/* hero + add form */
.hero { margin-bottom: 20px; }
.hero h1 { margin: 0; font-size: 28px; line-height: 1.2; letter-spacing: -0.01em; }
.hero h1 + p { margin: 6px 0 16px; color: var(--muted); max-width: 60ch; text-wrap: pretty; }
.add { display: flex; gap: 8px; max-width: 560px; }
.add input {
  flex: 1; min-width: 0; font: 16px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: 8px;
  padding: 9px 12px; min-height: 42px;
}
.add input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.add input[aria-invalid="true"] { border-color: var(--down); }
.add .btn { min-height: 42px; padding: 8px 18px; }
.add__error { color: var(--down); font-size: 13px; margin: 6px 0 0; min-height: 1.5em; }
.examples { color: var(--muted); font-size: 13px; margin: 2px 0 0; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.chip {
  font: 12.5px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; cursor: pointer;
  color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px;
}
.chip:hover { border-color: var(--muted); }
.chip:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* summary banner */
.summary {
  display: flex; align-items: center; gap: 16px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px 20px; border-left: 6px solid var(--state, var(--none));
}
.summary[data-state="up"] { --state: var(--up); }
.summary[data-state="degraded"] { --state: var(--degraded); }
.summary[data-state="down"] { --state: var(--down); }
.summary__dot { width: 14px; height: 14px; border-radius: 50%; background: var(--state, var(--none)); flex: none; }
.summary[data-state="pending"] .summary__dot { animation: pulse 1.2s ease-in-out infinite; }
.summary__title { margin: 0; font-size: 20px; line-height: 1.3; text-wrap: balance; }
.summary__meta { margin: 2px 0 0; color: var(--muted); font-size: 14px; }

@keyframes pulse { 50% { opacity: 0.35; } }

/* toolbar */
.toolbar { display: flex; flex-wrap: wrap; align-items: end; gap: 12px 16px; margin: 20px 0 8px; }
.toolbar__next { color: var(--muted); font-size: 13px; margin-left: auto; font-variant-numeric: tabular-nums; }
.field { display: grid; gap: 4px; font-size: 12px; color: var(--muted); }
.field select {
  font: inherit; font-size: 14px; color: var(--text); background: var(--surface);
  border: 1px solid var(--line); border-radius: 8px; padding: 7px 10px; min-width: 150px;
}

.btn {
  font: inherit; font-size: 14px; font-weight: 550; cursor: pointer;
  border: 1px solid var(--line); background: var(--surface); color: var(--text);
  border-radius: 8px; padding: 8px 14px; min-height: 36px;
  transition: background-color 0.15s, border-color 0.15s, opacity 0.15s;
}
.btn:hover { border-color: var(--muted); }
a.btn { display: inline-flex; align-items: center; text-decoration: none; }
.btn:disabled { opacity: 0.55; cursor: progress; }
.btn:focus-visible, .field select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn--primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--primary:hover { border-color: var(--accent); filter: brightness(1.08); }
@media (prefers-color-scheme: dark) { .btn--primary { color: #04201d; } }
.btn--ghost { background: transparent; border-color: transparent; color: var(--muted); padding: 4px 8px; min-height: 0; font-weight: 450; }
.btn--ghost:hover { color: var(--text); border-color: transparent; }
.btn--small { padding: 4px 10px; min-height: 30px; font-size: 13px; }
.btn--icon { width: 30px; padding: 0; font-size: 18px; line-height: 1; color: var(--muted); }
.btn--icon:hover { color: var(--down); }

/* sections */
.section-h { font-size: 15px; font-weight: 650; margin: 28px 0 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.section-h--row { display: flex; align-items: center; justify-content: space-between; }
.section-h--row h2 { font: inherit; margin: 0; }

/* services */
.services { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.services:empty::before { content: "Здесь появятся добавленные домены"; color: var(--muted); padding: 4px 0; }
.svc__name strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.svc {
  --state: var(--none);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 14px 16px;
}
.svc[data-state="up"] { --state: var(--up); }
.svc[data-state="degraded"] { --state: var(--degraded); }
.svc[data-state="down"] { --state: var(--down); }

.svc__head { display: flex; align-items: center; gap: 12px; }
.svc__dot { width: 10px; height: 10px; border-radius: 50%; background: var(--state); flex: none; box-shadow: 0 0 0 4px color-mix(in srgb, var(--state) 18%, transparent); }
.svc.is-checking .svc__dot { animation: pulse 0.9s ease-in-out infinite; }
.svc__name { display: grid; min-width: 0; flex: 1; }
.svc__name strong { font-size: 15px; }
.svc__target { color: var(--muted); font: 12.5px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.svc__stats { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; margin: 12px 0 10px; }
.svc__stats div { display: grid; gap: 1px; min-width: 0; }
.svc__stats span { font-size: 12px; color: var(--muted); }
.svc__stats b { font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.svc__stats .is-up { color: var(--up); }
.svc__stats .is-degraded { color: var(--degraded); }
.svc__stats .is-down { color: var(--down); }

.bars { display: flex; gap: 3px; height: 26px; align-items: stretch; }
.bars i { flex: 1; border-radius: 3px; background: var(--none); min-width: 3px; }
.bars i.up { background: var(--up); }
.bars i.degraded { background: var(--degraded); }
.bars i.down { background: var(--down); }

/* log */
.log {
  list-style: none; margin: 0; padding: 0; max-height: 280px; overflow: auto;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  font: 12.5px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.log:empty::before { content: "Пока пусто"; display: block; padding: 12px 14px; color: var(--muted); font-family: system-ui, sans-serif; }
.log li { display: grid; grid-template-columns: 70px 74px 1fr auto; gap: 10px; padding: 6px 14px; border-top: 1px solid var(--line); }
.log li:first-child { border-top: 0; }
.log .t { color: var(--muted); }
.log .s-up { color: var(--up); }
.log .s-degraded { color: var(--degraded); }
.log .s-down { color: var(--down); }
.log .m { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.log .r { color: var(--muted); text-align: right; }

/* legend + footer */
.legend { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 18px; color: var(--muted); font-size: 13px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.pill { display: inline-block; width: 10px; height: 10px; border-radius: 3px; }
.pill--up { background: var(--up); }
.pill--degraded { background: var(--degraded); }
.pill--down { background: var(--down); }
.pill--none { background: var(--none); }

.foot { border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; padding: 18px 0 28px; }

@media (max-width: 640px) {
  .svc__stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero h1 { font-size: 24px; }
  .toolbar__next { margin-left: 0; width: 100%; }
  .field select { min-width: 0; }
  .log li { grid-template-columns: 62px 1fr auto; }
  .log li .s { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}