:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --ink: #243242;
  --muted: #8a97a6;
  --line: #e4e9ef;
  --accent: #2f6fb0;
  --ok: #2e9e5b;
  --crit: #d64545;
  --soon: #d98a2b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); font-weight: normal; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  background: #243242; color: #fff; padding: 12px 24px;
}
.topbar .brand { font-weight: 600; font-size: 17px; }
.topbar nav a { color: #cfdae6; margin-left: 20px; }
.topbar nav a:hover { color: #fff; }
.topbar nav a.logout { color: #f0b5b5; }

main { max-width: 1100px; margin: 24px auto; padding: 0 20px; }
h1 { font-size: 22px; margin: 0 0 18px; }

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 14px; }
.flash-ok { background: #e5f5ec; color: #1f7a45; border: 1px solid #b7e3c8; }
.flash-error { background: #fbe7e7; color: #a82b2b; border: 1px solid #f0bcbc; }

.empty { background: var(--card); padding: 30px; border-radius: 10px; text-align: center; color: var(--muted); }

table.monitors {
  width: 100%; border-collapse: collapse; background: var(--card);
  border-radius: 10px; overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
table.monitors th {
  text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .4px;
  color: var(--muted); padding: 12px 14px; border-bottom: 1px solid var(--line);
}
table.monitors td { padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.monitors tr:last-child td { border-bottom: none; }
table.monitors tr.disabled { opacity: .55; }

.name-main { font-weight: 600; }
.name-url a { font-size: 13px; }
.name-kw { font-size: 12px; color: var(--muted); margin-top: 2px; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 13px; font-weight: 600; color: #fff; }
.badge.ok { background: var(--ok); }
.badge.crit { background: var(--crit); }
.badge.muted { background: #c2ccd6; }
.err { font-size: 12px; color: var(--crit); margin-top: 3px; }

.exp.ok { color: var(--ink); }
.exp.soon { color: var(--soon); font-weight: 600; }
.exp.crit { color: var(--crit); font-weight: 700; }
.exp.muted { color: var(--muted); }

.actions { white-space: nowrap; }
.actions form { display: inline; }
.actions button, .actions .btn {
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  border-radius: 7px; padding: 5px 9px; cursor: pointer; font-size: 14px; margin-left: 2px;
  display: inline-block; line-height: 1;
}
.actions button:hover, .actions .btn:hover { background: #eef3f8; }
.actions button.danger:hover { background: #fbe7e7; border-color: #f0bcbc; }

/* Формы */
.monitor-form { background: var(--card); padding: 22px; border-radius: 10px; max-width: 560px; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.monitor-form label { display: block; margin-bottom: 14px; font-size: 14px; font-weight: 600; }
.monitor-form label.checkbox { font-weight: normal; }
.monitor-form input[type=text], .monitor-form input[type=url] {
  display: block; width: 100%; margin-top: 6px; padding: 9px 11px;
  border: 1px solid var(--line); border-radius: 7px; font-size: 15px; font-weight: normal;
}
.form-actions { margin-top: 8px; }
button, .btn { cursor: pointer; }
.monitor-form button[type=submit], .login-card button {
  background: var(--accent); color: #fff; border: none; padding: 10px 22px;
  border-radius: 8px; font-size: 15px;
}
.btn.cancel { background: #eef3f8; color: var(--ink); padding: 10px 18px; border-radius: 8px; margin-left: 8px; }

/* Логин */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-wrap { width: 320px; }
.login-card { background: var(--card); padding: 30px; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,.1); }
.login-card h1 { text-align: center; font-size: 22px; line-height: 1.2; }
.login-card h1 span { color: var(--muted); font-size: 16px; }
.login-card label { display: block; margin-bottom: 14px; font-size: 14px; font-weight: 600; }
.login-card input { display: block; width: 100%; margin-top: 6px; padding: 10px; border: 1px solid var(--line); border-radius: 7px; font-size: 15px; }
.login-card button { width: 100%; margin-top: 6px; }
.login-error { background: #fbe7e7; color: #a82b2b; padding: 9px; border-radius: 7px; font-size: 14px; margin-bottom: 12px; text-align: center; }
.login-card .hint { font-size: 13px; color: var(--muted); text-align: center; margin: 0 0 14px; }
.login-card .logout-link { display: block; text-align: center; margin-top: 14px; font-size: 13px; color: var(--muted); }