:root {
  --bg: #08111f;
  --card: #0d1a2d;
  --card-2: #0f2038;
  --line: rgba(255,255,255,.08);
  --text: #eef4ff;
  --muted: #9fb3d9;
  --blue: #2f7cff;
  --blue-2: #1f6fff;
  --green: #18c37e;
  --red: #ff5d73;
  --orange: #ffb02e;
  --radius: 18px;
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(53, 106, 255, 0.18), transparent 25%),
    linear-gradient(180deg, #07101d, #091425 60%, #091322);
  color: var(--text);
}

a {
  color: #8cc3ff;
  text-decoration: none;
}

a:hover { color: #b6d6ff; }

.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.sidebar {
  border-right: 1px solid var(--line);
  background: rgba(5, 11, 22, 0.72);
  backdrop-filter: blur(10px);
  padding: 24px 18px;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.brand {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 28px;
  letter-spacing: .3px;
}

.brand span { color: #75a7ff; }

.side-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.side-nav a,
.side-nav button {
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  cursor: pointer;
  transition: .2s ease;
}

.side-nav a:hover,
.side-nav button:hover {
  background: rgba(255,255,255,.04);
  border-color: var(--line);
}

.side-nav a.active {
  background: rgba(47, 124, 255, 0.18);
  border-color: rgba(47,124,255,.35);
}

.main {
  padding: 28px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.page-intro h1,
.page-intro .title {
  font-size: 30px;
  font-weight: 800;
  margin: 0;
}

.page-intro .subtitle {
  color: var(--muted);
  margin-top: 6px;
  font-size: 14px;
}

.logout-form { margin: 0; }

.sidebar-logout {
  margin-top: auto;
  padding-top: 18px;
}

.sidebar-logout button {
  width: 100%;
  text-align: center;
  justify-content: center;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.sidebar-logout button:hover {
  background: rgba(255,255,255,.09);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
}

.grid > .card,
.grid > .stats-card,
.grid > .span-12 { grid-column: span 12; }
.grid > .span-6 { grid-column: span 6; }
.grid > .span-4 { grid-column: span 4; }
.grid > .span-3 { grid-column: span 3; }

.card,
.stats-card {
  background: linear-gradient(180deg, rgba(13,26,45,.96), rgba(10,21,36,.98));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 20px 50px rgba(0,0,0,.25);
  padding: 22px;
}

.card h2,
.card h3,
.stats-card h2 {
  margin: 0 0 14px;
  font-size: 20px;
}

.card p,
.card li,
.card small {
  color: var(--text);
}

.note,
.muted,
.small,
small.hint,
.card p.note {
  color: var(--muted);
}

.small { font-size: 13px; }
.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  word-break: break-all;
}

.stats-number {
  font-size: 42px;
  font-weight: 800;
  line-height: 1;
}

.stats-label {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 10px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 14px;
}

.field { grid-column: span 12; }
.field.half { grid-column: span 6; }
.field.third { grid-column: span 4; }

label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  color: #dce8ff;
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  padding: 13px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: #09172c;
  color: var(--text);
  outline: none;
  font-size: 15px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(84, 142, 255, .8);
  box-shadow: 0 0 0 3px rgba(47,124,255,.16);
}

input::placeholder,
textarea::placeholder {
  color: #8ea2c8;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.btn,
button,
.link-btn {
  appearance: none;
  border: none;
  background: var(--blue);
  color: #fff;
  padding: 12px 16px;
  border-radius: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: .2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn:hover,
button:hover,
.link-btn:hover {
  background: var(--blue-2);
  transform: translateY(-1px);
}

.btn.secondary,
button.secondary,
.link-btn.secondary {
  background: rgba(255,255,255,.05);
  color: var(--text);
  border: 1px solid var(--line);
}

.btn.secondary:hover,
button.secondary:hover,
.link-btn.secondary:hover {
  background: rgba(255,255,255,.08);
}

.btn.red,
button.danger,
.link-btn.danger {
  background: var(--red);
}

.btn.red:hover,
button.danger:hover,
.link-btn.danger:hover {
  filter: brightness(.96);
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.inline-form {
  display: inline;
}

.alert {
  padding: 14px 16px;
  border-radius: 14px;
  margin-bottom: 16px;
  font-weight: 600;
  border: 1px solid transparent;
}

.alert.ok,
.alert.success {
  background: rgba(24,195,126,.12);
  border-color: rgba(24,195,126,.28);
  color: #c9ffe7;
}

.alert.err,
.alert.error {
  background: rgba(255,93,115,.12);
  border-color: rgba(255,93,115,.28);
  color: #ffd6dc;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 14px;
}

thead th,
tr:first-child th {
  text-align: left;
  font-size: 13px;
  color: var(--muted);
  font-weight: 700;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

tbody td,
td {
  padding: 14px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  vertical-align: middle;
}

tbody tr:hover { background: rgba(255,255,255,.025); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.badge.online {
  background: rgba(24,195,126,.12);
  color: #86efac;
}

.badge.offline {
  background: rgba(255,93,115,.12);
  color: #fca5a5;
}

.badge.unknown {
  background: rgba(148,163,184,.15);
  color: #d1d5db;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: #64748b;
  display: inline-block;
}

.dot.online {
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(24,195,126,.14);
}

.dot.offline {
  background: var(--red);
  box-shadow: 0 0 0 4px rgba(255,93,115,.12);
}

.list-steps {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 10px;
}

.checkbox-list {
  display: grid;
  gap: 10px;
  max-height: 260px;
  overflow: auto;
  padding-right: 4px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  background: rgba(255,255,255,.02);
}

.checkbox-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--blue);
}

.checkbox-item .meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.kv-list {
  display: grid;
  gap: 12px;
}

.kv-item {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.02);
  border-radius: 14px;
  padding: 14px;
}

.kv-item strong {
  display: block;
  margin-bottom: 6px;
}

.code-inline {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.03);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
}


/* Login page */
.login-page {
  min-height: 100vh;
}

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  width: min(100%, 440px);
  padding: 28px;
}

.login-brand {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: .3px;
}

.login-brand span {
  color: #75a7ff;
}

.login-card h1 {
  margin: 0 0 22px;
  font-size: 30px;
  font-weight: 800;
}

.login-form button.login-submit {
  margin-top: 4px;
}

@media (max-width: 1100px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
  .sidebar-logout {
    margin-top: 10px;
    padding-top: 0;
  }
}

@media (max-width: 760px) {
  .main { padding: 16px; }
  .field.half, .field.third, .grid > .span-6, .grid > .span-4, .grid > .span-3 {
    grid-column: span 12;
  }
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
  .table-wrap { overflow-x: auto; }
}