:root {
  --bg: #0c1117;
  --bg-soft: #151d26;
  --panel: rgba(15, 22, 31, 0.78);
  --panel-strong: rgba(18, 28, 39, 0.92);
  --border: rgba(187, 214, 240, 0.14);
  --text: #ebf3fb;
  --muted: #93a8bb;
  --accent: #8fd3ff;
  --accent-2: #ffc978;
  --good: #7df0ba;
  --warn: #ffbe66;
  --danger: #ff8e88;
  --shadow: 0 24px 80px rgba(3, 7, 12, 0.48);
  --radius: 22px;
  --radius-sm: 14px;
  --font: "Avenir Next", "Segoe UI", sans-serif;
}

[hidden] {
  display: none !important;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(143, 211, 255, 0.16), transparent 30%),
    radial-gradient(circle at bottom right, rgba(255, 201, 120, 0.14), transparent 28%),
    linear-gradient(180deg, #091017 0%, #0d141c 100%);
}

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

.app-shell {
  position: relative;
  min-height: 100vh;
}

.backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.backdrop--grid {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at center, black, transparent 80%);
}

.topbar,
.layout,
.login-layout {
  position: relative;
  z-index: 1;
}

.topbar {
  width: min(1240px, calc(100% - 32px));
  margin: 20px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
}

.brand,
.topbar__actions,
.metric,
.tabs,
.toolbar,
.modal__head,
.modal__actions {
  display: flex;
  align-items: center;
}

.brand {
  gap: 14px;
}

.brand__mark {
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 24px rgba(143, 211, 255, 0.55);
}

.brand__title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.eyebrow {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 11px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.panel--strong {
  background: var(--panel-strong);
}

.topbar__actions {
  gap: 12px;
}

.metric {
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
}

.metric__value {
  font-weight: 700;
}

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

.layout {
  width: min(1240px, calc(100% - 32px));
  margin: 20px auto 48px;
  display: grid;
  gap: 18px;
}

.hero,
.toolbar,
.tabs,
.table-panel,
.architecture-card,
.empty {
  padding: 20px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.8fr);
  gap: 18px;
  align-items: center;
}

.hero__title,
.login-title {
  margin: 8px 0 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.02;
  max-width: 880px;
}

.hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}

.chip--ok {
  color: var(--good);
}

.chip--warn {
  color: var(--warn);
}

.tabs,
.toolbar {
  gap: 12px;
}

.tab,
.btn {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 11px 18px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  cursor: pointer;
  transition: 160ms ease;
}

.tab:hover,
.btn:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.26);
}

.tab.is-active,
.btn--primary {
  background: linear-gradient(135deg, rgba(143, 211, 255, 0.22), rgba(255, 201, 120, 0.2));
  color: #fff8eb;
}

.btn--sm {
  padding: 9px 14px;
}

.btn--ghost {
  background: transparent;
}

.search-input,
.field__input {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 12px 14px;
  outline: none;
}

.search-input {
  max-width: 420px;
}

.search-input:focus,
.field__input:focus {
  border-color: rgba(143, 211, 255, 0.5);
  box-shadow: 0 0 0 3px rgba(143, 211, 255, 0.12);
}

.view {
  display: block;
}

.table-head,
.table-row {
  display: grid;
  gap: 14px;
  align-items: center;
}

.table-head {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 11px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.table-head--servers,
.table-row--servers {
  grid-template-columns: 1.3fr 1fr 1fr 1fr 1fr 1fr;
}

.table-head--services,
.table-row--services {
  grid-template-columns: 1.3fr 1fr 1fr 0.9fr 1.1fr 1.1fr 0.8fr;
}

.table-body {
  display: grid;
}

.table-row {
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.table-row:last-child {
  border-bottom: none;
}

.entity-title {
  font-weight: 700;
}

.entity-subtitle,
.empty,
.login-copy,
.field__label,
.doc-link {
  color: var(--muted);
}

.architecture-card h2 {
  margin: 8px 0 12px;
  font-size: 28px;
  max-width: 800px;
}

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

.doc-link {
  display: inline-block;
  margin-top: 16px;
}

.login-layout {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
}

.login-card {
  width: min(520px, 100%);
  padding: 28px;
}

.form {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

.field__label {
  font-size: 13px;
}

.field__input--textarea {
  min-height: 110px;
  resize: vertical;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.form-grid--triple {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding: 24px;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(1, 4, 8, 0.58);
}

.modal__card {
  position: relative;
  width: min(760px, 100%);
  padding: 24px;
}

.modal__head,
.modal__actions {
  justify-content: space-between;
}

.icon-close {
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 26px;
  cursor: pointer;
}

.edge-picker {
  display: grid;
  gap: 10px;
  max-height: 180px;
  overflow: auto;
}

.edge-picker__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
}

.form__error {
  color: var(--danger);
  font-size: 14px;
}

.toast-root {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 20;
  display: grid;
  gap: 10px;
}

.toast {
  padding: 12px 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(14, 22, 32, 0.95);
  box-shadow: var(--shadow);
}

@media (max-width: 980px) {
  .hero,
  .topbar,
  .toolbar {
    grid-template-columns: 1fr;
    flex-wrap: wrap;
  }

  .table-head {
    display: none;
  }

  .table-row,
  .table-row--servers,
  .table-row--services {
    grid-template-columns: 1fr;
    gap: 6px;
  }

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