:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --ink: #17202a;
  --muted: #657386;
  --line: #d8dee8;
  --primary: #176b87;
  --primary-strong: #0f4d62;
  --accent: #c26a2e;
  --good: #1b7f4b;
  --warn: #a35d00;
  --bad: #b42318;
  --soft: #eef7f8;
  --shadow: 0 12px 28px rgba(28, 42, 58, .08);
}

* { box-sizing: border-box; }

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

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

.app {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
}

.sidebar {
  background: #18212c;
  color: #eef3f7;
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.brand {
  padding: 12px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 8px;
}

.brand strong {
  display: block;
  font-size: 18px;
}

.brand span {
  display: block;
  margin-top: 6px;
  color: #b8c6d3;
  font-size: 12px;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-btn {
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: #d9e3ec;
  text-align: left;
  padding: 11px 12px;
  cursor: pointer;
}

.nav-btn:hover,
.nav-btn.active {
  border-color: rgba(255,255,255,.18);
  background: rgba(255,255,255,.09);
}

.side-status {
  margin-top: auto;
  border-top: 1px solid rgba(255,255,255,.14);
  padding-top: 12px;
}

.side-status span {
  display: inline-flex;
  border-radius: 999px;
  background: #f6e7d8;
  color: #713d13;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 8px;
}

.side-status small {
  display: block;
  color: #b8c6d3;
  margin-top: 8px;
}

.main {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  height: 72px;
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 22px;
  position: sticky;
  top: 0;
  z-index: 5;
}

.topbar h1 {
  margin: 0;
  font-size: 20px;
}

.topbar p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.top-actions,
.form-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.btn {
  border: 1px solid var(--primary);
  background: var(--primary);
  color: #fff;
  min-height: 36px;
  border-radius: 7px;
  padding: 0 13px;
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover { background: var(--primary-strong); }

.btn.secondary {
  background: #fff;
  color: var(--ink);
  border-color: #b8c4d2;
}

.btn.secondary:hover { background: #f8fafc; }

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
}

.btn.compact {
  min-height: 30px;
  padding: 0 10px;
  font-size: 13px;
}

.page {
  display: none;
  padding: 20px;
}

.page.active {
  display: block;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.metric {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  box-shadow: var(--shadow);
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 28px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 16px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.panel-head {
  min-height: 54px;
  border-bottom: 1px solid var(--line);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel h2 {
  margin: 0;
  font-size: 16px;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th,
td {
  text-align: left;
  border-bottom: 1px solid #edf0f4;
  padding: 11px 12px;
  font-size: 13px;
  vertical-align: middle;
}

th {
  color: var(--muted);
  font-weight: 600;
  background: #fafbfc;
}

td code {
  background: #eef2f6;
  border-radius: 6px;
  padding: 2px 5px;
}

.status {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 0 8px;
  font-size: 12px;
  font-weight: 700;
  background: #eef2f6;
  color: #415166;
}

.status.queued { background: #fff4df; color: var(--warn); }
.status.notified { background: var(--soft); color: var(--primary); }
.status.success { background: #e6f6ed; color: var(--good); }
.status.simulated { background: #fff4df; color: var(--warn); }
.status.failed { background: #fde8e7; color: var(--bad); }
.status.running { background: #e9edff; color: #3446a0; }
.status.skipped { background: #f0f1f3; color: #697386; }

.row-actions {
  display: flex;
  gap: 6px;
}

.link-btn {
  border: 0;
  background: transparent;
  color: var(--primary);
  cursor: pointer;
  padding: 4px;
}

.link-btn.danger {
  color: var(--bad);
}

.form-grid {
  padding: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 12px;
}

label {
  color: var(--muted);
  font-size: 13px;
}

label.wide,
.form-actions {
  grid-column: 1 / -1;
}

input,
select,
textarea {
  width: 100%;
  margin-top: 6px;
  border: 1px solid #c6d0dc;
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  padding: 9px 10px;
  outline: none;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(23, 107, 135, .15);
}

label.check {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  color: var(--ink);
}

label.check input {
  width: auto;
  margin: 0;
}

.events {
  padding: 8px 14px 14px;
  max-height: 620px;
  overflow: auto;
}

.event {
  border-bottom: 1px solid #edf0f4;
  padding: 11px 0;
}

.event strong {
  display: block;
  font-size: 13px;
}

.event span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.event-detail {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 7px;
}

.event-detail span,
.event-detail a {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  margin-top: 0;
  border-radius: 6px;
  background: #f3f6f9;
  color: var(--muted);
  padding: 0 7px;
  font-size: 12px;
  text-decoration: none;
}

.event-detail .status {
  font-weight: 700;
}

.event-detail .event-message {
  width: 100%;
  justify-content: flex-start;
  min-height: 0;
  padding: 6px 7px;
  line-height: 1.45;
}

.event.error strong { color: var(--bad); }

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

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  background: #17202a;
  color: #fff;
  border-radius: 8px;
  padding: 12px 14px;
  box-shadow: var(--shadow);
  max-width: 420px;
  z-index: 20;
}

.hidden {
  display: none !important;
}

@media (max-width: 980px) {
  .app {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .nav {
    flex-direction: row;
    flex-wrap: wrap;
  }

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

  .topbar {
    height: auto;
    align-items: flex-start;
    flex-direction: column;
    padding: 14px;
  }
}