:root {
  --bg: #f4f8f7;
  --surface: #ffffff;
  --text: #1f2d2a;
  --muted: #61706d;
  --line: #d8e4e1;
  --ok: #0f8f5b;
  --down: #cf3e2f;
  --warn: #d99b1f;
  --accent: #0a6f88;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 10% 10%, #deefea 0%, transparent 38%),
    radial-gradient(circle at 90% 20%, #d9edf3 0%, transparent 32%),
    var(--bg);
}

.container {
  width: min(1080px, 92vw);
  margin: 2.5rem auto 3rem;
  display: grid;
  gap: 1rem;
}

.hero {
  background: linear-gradient(130deg, #e9f6f2 0%, #e7f0f7 100%);
  border: 1px solid #cadcd8;
  border-radius: 16px;
  padding: 1.4rem;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 700;
}

h1 {
  margin: 0.3rem 0 0.6rem;
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
}

.sub {
  margin: 0;
  max-width: 72ch;
  color: #344744;
}

.meta {
  margin-top: 0.8rem;
  color: var(--muted);
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.summary-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.85rem 1rem;
}

.summary-card h2 {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 600;
}

.summary-card p {
  margin: 0.25rem 0 0;
  font-size: 1.45rem;
  font-weight: 700;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
}

.panel h2 {
  margin: 0;
  font-size: 1.05rem;
}

.panel-sub {
  margin: 0.55rem 0 0.9rem;
  color: #405351;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.8rem;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 0.5rem 0.75rem;
  background: var(--accent);
  color: white;
  cursor: pointer;
  font-weight: 600;
}

button:hover {
  filter: brightness(1.08);
}

input {
  border: 1px solid #c6d9d5;
  border-radius: 10px;
  padding: 0.58rem 0.65rem;
  width: 100%;
  font-size: 0.95rem;
  color: var(--text);
  background: #fdfefe;
}

input:focus {
  border-color: #83b9c8;
  outline: 2px solid rgba(110, 180, 201, 0.22);
}

.monitor-form {
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  gap: 0.65rem;
  align-items: end;
}

.monitor-form label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
}

.form-message {
  min-height: 1.25rem;
  margin: 0.65rem 0 0;
  color: #385f6a;
  font-size: 0.9rem;
}

.site-list {
  display: grid;
  gap: 0.75rem;
}

.site-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.8rem;
}

.site-line {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.8rem;
}

.site-name {
  margin: 0;
  font-size: 1rem;
}

.site-url {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.site-url:hover {
  text-decoration: underline;
}

.status-badge {
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
  font-size: 0.78rem;
  font-weight: 700;
  border: 1px solid transparent;
}

.status-up {
  color: var(--ok);
  background: #e4f8ef;
  border-color: #b2e7cf;
}

.status-down {
  color: var(--down);
  background: #fdeceb;
  border-color: #f5c4bf;
}

.status-degraded {
  color: #926200;
  background: #fff4dd;
  border-color: #f6dca0;
}

.metrics {
  margin-top: 0.7rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}

.metrics p {
  margin: 0;
  background: #f7fbfa;
  border: 1px solid #e1eeea;
  border-radius: 8px;
  padding: 0.4rem 0.55rem;
  display: flex;
  justify-content: space-between;
  gap: 0.4rem;
  font-size: 0.88rem;
}

.metrics span {
  color: var(--muted);
}

.events-list {
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.events-list li {
  border-left: 3px solid #a5c7c0;
  padding: 0.4rem 0.6rem;
  background: #f8fbfa;
  border-radius: 8px;
  color: #304441;
}

.subscription-list {
  list-style: none;
  margin: 0.65rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.subscription-list li {
  border: 1px solid #e0ece9;
  background: #f9fcfb;
  border-radius: 10px;
  padding: 0.55rem 0.65rem;
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  font-size: 0.9rem;
}

.subscription-meta {
  color: var(--muted);
  white-space: nowrap;
}

.event-time {
  color: var(--muted);
  margin-right: 0.45rem;
}

.site-footer {
  width: min(1080px, 92vw);
  margin: 0 auto;
  display: flex;
  justify-content: center;
  column-gap: 1.25rem;
  row-gap: 0.6rem;
  flex-wrap: wrap;
  text-align: center;
  border-top: 1px solid #d8e4e1;
  padding: 1rem 0 1.4rem;
}

.site-footer a {
  color: #365f67;
  text-decoration: none;
  font-weight: 600;
}

.site-footer a:hover {
  text-decoration: underline;
}

.doc-main {
  width: min(900px, 92vw);
  margin: 2.2rem auto;
}

.doc-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.15rem 1.1rem;
}

.doc-card h1 {
  margin-top: 0;
}

.doc-card p,
.doc-card li {
  color: #324441;
  line-height: 1.58;
}

@media (max-width: 860px) {
  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metrics {
    grid-template-columns: 1fr;
  }

  .monitor-form {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(1080px, 94vw);
    margin-top: 1rem;
  }

  .panel,
  .hero,
  .summary-card {
    border-radius: 12px;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }
}