:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-soft: #eef7f5;
  --text: #172026;
  --muted: #65717c;
  --line: #d8e0e7;
  --accent: #0f766e;
  --accent-strong: #115e59;
  --danger: #b42318;
  --warn: #9a6700;
  --ok: #0f7b47;
  --shadow: 0 12px 36px rgba(21, 35, 45, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Noto Sans SC", sans-serif;
  letter-spacing: 0;
}

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

button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  padding: 0 14px;
}

button:hover {
  border-color: #9fb2c1;
}

button:disabled {
  cursor: wait;
  opacity: 0.65;
}

.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.primary:hover {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
}

.quiet {
  background: transparent;
}

.danger {
  border-color: #f1c4bf;
  color: var(--danger);
}

.icon-button {
  width: 38px;
  padding: 0;
  font-size: 24px;
  line-height: 1;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  outline: none;
  padding: 10px 12px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.14);
}

textarea {
  resize: vertical;
}

label {
  display: grid;
  gap: 7px;
  color: #30404c;
  font-size: 13px;
  font-weight: 650;
}

.muted {
  color: var(--muted);
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 20px;
}

.auth-panel {
  width: min(430px, 100%);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  display: grid;
  gap: 18px;
  padding: 28px;
}

.auth-panel h1 {
  margin: -6px 0 4px;
  font-size: 28px;
  letter-spacing: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  padding: 14px clamp(16px, 4vw, 38px);
}

.brand h1 {
  margin: 2px 0 0;
  font-size: 22px;
  letter-spacing: 0;
}

.top-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.layout {
  width: min(1200px, 100%);
  margin: 0 auto;
  padding: 22px clamp(14px, 4vw, 38px) 52px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.metrics article,
.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.metrics article {
  display: grid;
  gap: 6px;
  min-height: 88px;
  padding: 16px;
}

.metrics span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.metrics strong {
  font-size: 28px;
  line-height: 1;
}

.panel {
  padding: 18px;
  margin-top: 16px;
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.panel-heading h2 {
  margin: 0;
  font-size: 19px;
  letter-spacing: 0;
}

.panel-heading p {
  margin: 5px 0 0;
  font-size: 13px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.export-controls {
  width: min(360px, 100%);
  margin-bottom: 12px;
}

.export-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.export-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fbfcfd;
}

.export-item strong {
  display: block;
  margin-bottom: 4px;
}

.export-item code {
  display: block;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.filters {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) 180px;
  gap: 12px;
  margin-bottom: 14px;
}

.source-list {
  display: grid;
  gap: 10px;
}

.source-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.source-main {
  min-width: 0;
}

.source-title {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 7px;
}

.source-title h3 {
  margin: 0;
  min-width: 0;
  font-size: 16px;
  letter-spacing: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 23px;
  border-radius: 999px;
  padding: 0 8px;
  background: #edf2f7;
  color: #334155;
  font-size: 12px;
  font-weight: 700;
}

.badge.ok {
  background: #e9f8ef;
  color: var(--ok);
}

.badge.error {
  background: #fff0ee;
  color: var(--danger);
}

.badge.off {
  background: #f3f4f6;
  color: #6b7280;
}

.source-url {
  overflow: hidden;
  margin: 0 0 10px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.node-uri {
  overflow-wrap: anywhere;
  text-overflow: initial;
  white-space: normal;
}

.source-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.source-error {
  margin: 10px 0 0;
  color: var(--danger);
  font-size: 13px;
}

.source-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(84px, auto));
  gap: 8px;
  align-content: start;
}

.empty {
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  margin: 0;
  padding: 28px;
  text-align: center;
}

dialog {
  width: min(640px, calc(100vw - 24px));
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 0;
}

dialog::backdrop {
  background: rgba(14, 24, 33, 0.36);
}

.dialog-form {
  display: grid;
  gap: 14px;
  padding: 18px;
}

.dialog-form header,
.dialog-form footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.dialog-form h2 {
  margin: 0;
  font-size: 19px;
}

.dialog-form footer {
  justify-content: flex-end;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

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

.check-row {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 650;
}

.check-row input {
  width: 18px;
  height: 18px;
  margin: 0;
}

#toast {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 30;
  max-width: min(420px, calc(100vw - 32px));
  border-radius: 8px;
  background: #14212b;
  color: #fff;
  box-shadow: var(--shadow);
  opacity: 0;
  padding: 12px 14px;
  transform: translateY(12px);
  transition:
    opacity 0.18s ease,
    transform 0.18s ease;
  pointer-events: none;
}

#toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 780px) {
  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .top-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-content: stretch;
  }

  .metrics,
  .export-links,
  .filters,
  .field-grid {
    grid-template-columns: 1fr;
  }

  .panel-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .source-card {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 420px) {
  .layout {
    padding-inline: 10px;
  }

  .panel,
  .source-card,
  .metrics article {
    padding: 12px;
  }

  .source-actions,
  .top-actions {
    grid-template-columns: 1fr;
  }
}