:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --panel-alt: #f0f4ff;
  --border: #dbe3f0;
  --text: #122033;
  --muted: #5a6a81;
  --primary: #275efe;
  --primary-soft: rgba(39, 94, 254, 0.12);
  --success: #107c41;
  --warning: #b86b00;
  --danger: #c0362c;
  --shadow: 0 20px 50px rgba(18, 32, 51, 0.08);
}

html[data-theme="dark"] {
  --bg: #0e1420;
  --panel: #151f31;
  --panel-alt: #19253a;
  --border: #273752;
  --text: #eef3ff;
  --muted: #95a5c0;
  --primary: #7ea2ff;
  --primary-soft: rgba(126, 162, 255, 0.16);
  --success: #56d58a;
  --warning: #ffbe55;
  --danger: #ff8d7c;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: linear-gradient(180deg, var(--bg) 0%, color-mix(in srgb, var(--bg) 90%, black) 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

.container {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid var(--border);
}

.header-shell,
.footer-shell,
.page-shell {
  padding: 1rem 0;
}

.page-shell {
  display: grid;
  gap: 1.25rem;
  padding-bottom: 3rem;
}

.brand-block {
  display: grid;
  gap: 0.15rem;
}

.brand-link {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-subtitle {
  margin: 0;
  color: var(--muted);
}

.header-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.35rem 1.5rem;
  border-radius: 1.25rem;
  background: linear-gradient(135deg, var(--panel) 0%, var(--panel-alt) 100%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.hero h1 {
  margin: 0.2rem 0 0.5rem;
  font-size: clamp(2rem, 4vw, 2.8rem);
}

.hero-text,
.muted {
  color: var(--muted);
}

.hero-text {
  max-width: 60ch;
  margin: 0;
}

.hero-meta {
  min-width: 250px;
  display: grid;
  gap: 0.35rem;
  align-content: start;
}

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

.panel {
  border-radius: 1.25rem;
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  display: grid;
  gap: 1rem;
}

.panel-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
}

.panel-header.wrap {
  flex-wrap: wrap;
}

.panel h2 {
  margin: 0 0 0.25rem;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.85rem;
}

.summary-card,
.metric-card {
  border-radius: 1rem;
  padding: 1rem;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-alt) 100%);
  display: grid;
  gap: 0.45rem;
}

.summary-card span,
.metric-card span {
  color: var(--muted);
  font-size: 0.95rem;
}

.summary-card strong,
.metric-card strong {
  font-size: 1.6rem;
  line-height: 1.1;
}

.split-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.25rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.95rem;
}

.form-grid label {
  display: grid;
  gap: 0.45rem;
}

.form-grid label span {
  color: var(--muted);
  font-size: 0.92rem;
}

.form-grid input,
.form-grid select {
  width: 100%;
  border-radius: 0.85rem;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel) 86%, var(--bg) 14%);
  color: var(--text);
  padding: 0.85rem 0.95rem;
  outline: none;
}

.form-grid input:focus,
.form-grid select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-soft);
}

.full-width {
  grid-column: 1 / -1;
}

.form-actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-start;
}

.inline-actions {
  justify-content: flex-start;
}

.toggle-row {
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: 0.85rem;
  background: color-mix(in srgb, var(--panel) 86%, var(--bg) 14%);
}

.toggle-row input {
  width: auto;
  transform: scale(1.15);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.toolbar label {
  display: grid;
  gap: 0.35rem;
}

.toolbar span,
.summary-meta {
  color: var(--muted);
  font-size: 0.92rem;
}

.btn {
  border: 1px solid transparent;
  border-radius: 0.85rem;
  padding: 0.85rem 1rem;
  background: var(--primary);
  color: white;
  cursor: pointer;
  transition: 160ms ease;
  font-weight: 700;
}

.btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.btn.secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn.danger {
  background: var(--danger);
}

.flash {
  padding: 0.9rem 1rem;
  border-radius: 0.95rem;
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.flash.info {
  border-left: 4px solid var(--primary);
}

.flash.success {
  border-left: 4px solid var(--success);
}

.flash.error {
  border-left: 4px solid var(--danger);
}

.hidden {
  display: none !important;
}

.monitor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1rem;
}

.monitor-card,
.alert-card {
  border: 1px solid var(--border);
  border-radius: 1.1rem;
  padding: 1rem;
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-alt) 100%);
  display: grid;
  gap: 0.85rem;
}

.monitor-header,
.alert-card-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 0.75rem;
}

.monitor-title {
  display: grid;
  gap: 0.35rem;
}

.monitor-title h3,
.alert-card h3 {
  margin: 0;
  font-size: 1.08rem;
}

.target-text,
.small-muted {
  color: var(--muted);
  word-break: break-word;
  margin: 0;
}

.badge,
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.42rem 0.68rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  width: fit-content;
}

.badge.online {
  background: color-mix(in srgb, var(--success) 16%, transparent);
  color: var(--success);
}

.badge.slow {
  background: color-mix(in srgb, var(--warning) 18%, transparent);
  color: var(--warning);
}

.badge.offline {
  background: color-mix(in srgb, var(--danger) 18%, transparent);
  color: var(--danger);
}

.pill {
  background: var(--primary-soft);
  color: var(--primary);
}

.monitor-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.monitor-metric {
  padding: 0.8rem;
  border-radius: 0.9rem;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel) 84%, var(--bg) 16%);
  display: grid;
  gap: 0.25rem;
}

.monitor-metric span {
  color: var(--muted);
  font-size: 0.88rem;
}

.monitor-metric strong {
  font-size: 1rem;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.error-text {
  margin: 0;
  color: var(--danger);
  font-size: 0.93rem;
}

.empty-state {
  color: var(--muted);
  text-align: center;
  padding: 1rem;
}

.stack-list {
  display: grid;
  gap: 0.85rem;
}

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

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
}

.data-table th,
.data-table td {
  padding: 0.9rem 0.8rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table thead th {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.empty-row {
  color: var(--muted);
  text-align: center;
}

.detail-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
}

@media (max-width: 980px) {
  .summary-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .hero {
    flex-direction: column;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 1rem, 1180px);
  }

  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .header-shell {
    flex-direction: column;
    align-items: stretch;
  }

  .header-actions {
    display: flex;
    justify-content: flex-end;
  }
}