* { box-sizing: border-box; }

:root {
  --bg: #0d1117;
  --card: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #4f8cff;
  --up: #3fb950;
  --down: #f85149;
  --pending: #d29922;
  --unknown: #6e7681;
}

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

.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.error { color: var(--down); font-size: 13px; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }

h1 { font-size: 20px; margin: 0; }
h2 { font-size: 17px; margin: 0 0 12px; }

label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 4px; }

input {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}
input:focus { outline: none; border-color: var(--accent); }
label.check { display: flex; align-items: center; gap: 8px; color: var(--text); margin: 12px 0; }
label.check input { width: auto; }

button {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #21262d;
  color: var(--text);
  font: inherit;
  cursor: pointer;
}
button:hover { border-color: #8b949e; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.secondary { background: transparent; }
button.danger { color: var(--down); }
button.small { padding: 4px 10px; font-size: 13px; }
button:disabled { opacity: 0.55; cursor: default; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.login-card { width: 360px; }
.login-card button { width: 100%; margin-top: 14px; }

.app-wrap { max-width: 1000px; margin: 0 auto; padding: 16px; display: flex; flex-direction: column; gap: 14px; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 6px 0;
}
.actions { display: flex; gap: 8px; flex-wrap: wrap; }

.add-form { display: flex; gap: 8px; flex-wrap: wrap; }
.add-form input { flex: 1; min-width: 160px; }

table { width: 100%; border-collapse: collapse; }
th, td { padding: 9px 10px; border-bottom: 1px solid var(--border); text-align: left; font-size: 14px; }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.4px; }
tbody tr:hover { background: #1c2129; }
.site-name { font-weight: 600; }
.site-url { color: var(--muted); font-size: 12px; word-break: break-all; }

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 7px;
  vertical-align: middle;
}
.dot.up { background: var(--up); }
.dot.down { background: var(--down); }
.dot.pending { background: var(--pending); }
.dot.unknown { background: var(--unknown); }

dialog {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  color: var(--text);
  padding: 20px;
  width: min(720px, 94vw);
}
dialog::backdrop { background: rgba(0, 0, 0, 0.6); }
.dialog-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.dialog-body { max-height: 60vh; overflow: auto; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: #21262d;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 18px;
  display: none;
  z-index: 10;
}
.toast.show { display: block; }
.toast.error { border-color: var(--down); color: var(--down); }