* {
  box-sizing: border-box;
}

:root {
  --canvas: #fbfbfa;
  --surface: #ffffff;
  --surface-alt: #f7f6f3;
  --border: #eaeaea;
  --border-strong: #deded8;
  --ink: #1a1a18;
  --ink-soft: #37352f;
  --muted: #787774;
  --faint: #9b9a97;
  --accent: #111111;
  --accent-hover: #2d2d2d;
  --red-bg: #fdebec;
  --red-fg: #9f2f2d;
  --blue-bg: #e1f3fe;
  --blue-fg: #1f6c9f;
  --green-bg: #edf3ec;
  --green-fg: #346538;
  --yellow-bg: #fbf3db;
  --yellow-fg: #956400;
  --gray-bg: #f1f1ef;
  --gray-fg: #5f5e5b;
  --radius: 8px;
  --radius-sm: 6px;
  --radius-lg: 12px;
}

body {
  margin: 0;
  display: grid;
  grid-template-columns: 248px 1fr;
  min-height: 100vh;
  font: 14px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: var(--ink-soft);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
}

aside {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 20px 14px;
  border-right: 1px solid var(--border);
  background: var(--surface);
}

h1 {
  margin: 0 8px 22px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 650;
}

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

aside button {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 8px;
  border: 0;
  border-radius: var(--radius-sm);
  padding: 9px 10px;
  margin: 3px 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  text-align: left;
}

aside button:hover,
aside button.active {
  background: var(--surface-alt);
  color: var(--ink);
}

main {
  min-width: 0;
  padding: 22px 28px 40px;
}

.toolbar {
  display: grid;
  grid-template-columns: 1fr 220px 128px 98px;
  gap: 8px;
  margin-bottom: 20px;
}

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.page-title {
  margin: 0;
  color: var(--ink);
  font-size: 18px;
  font-weight: 650;
}

.page-subtitle {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.card,
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.panel {
  padding: 16px;
  margin-bottom: 16px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.metric {
  padding: 16px;
}

.metric-label {
  color: var(--muted);
  font-size: 12px;
}

.metric-value {
  margin-top: 8px;
  color: var(--ink);
  font-size: 24px;
  font-weight: 700;
}

.metric-icon {
  float: right;
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 17px;
}

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

.field,
input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 9px 11px;
  background: var(--surface);
  color: var(--ink);
}

textarea {
  min-height: 220px;
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
}

.btn,
.action,
.toolbar button,
td button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-size: 13px;
  font-weight: 550;
}

.btn:hover,
.action:hover,
.toolbar button:hover,
td button:hover {
  background: var(--accent-hover);
}

.btn-secondary,
td button.secondary {
  background: var(--surface);
  color: var(--ink-soft);
  border-color: var(--border-strong);
}

.btn-secondary:hover,
td button.secondary:hover {
  background: var(--surface-alt);
}

.btn-danger,
td button.danger {
  background: var(--red-bg);
  color: var(--red-fg);
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th {
  padding: 11px 13px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--faint);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-align: left;
  text-transform: uppercase;
  white-space: nowrap;
}

td {
  padding: 12px 13px;
  border-bottom: 1px solid var(--border);
  color: var(--ink-soft);
  vertical-align: middle;
}

tr:last-child td {
  border-bottom: 0;
}

tbody tr:hover {
  background: var(--surface-alt);
}

.mono,
code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
}

pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  margin: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-green { background: var(--green-bg); color: var(--green-fg); }
.badge-red { background: var(--red-bg); color: var(--red-fg); }
.badge-blue { background: var(--blue-bg); color: var(--blue-fg); }
.badge-yellow { background: var(--yellow-bg); color: var(--yellow-fg); }
.badge-gray { background: var(--gray-bg); color: var(--gray-fg); }

.modal-backdrop {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.28);
  z-index: 10;
}

.modal {
  width: min(720px, 100%);
  max-height: min(760px, 92vh);
  overflow: auto;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 18px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 14px;
}

.empty {
  padding: 36px;
  text-align: center;
  color: var(--muted);
}

@media (max-width: 900px) {
  body {
    grid-template-columns: 1fr;
  }

  aside {
    position: static;
    height: auto;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px;
  }

  aside h1 {
    grid-column: 1 / -1;
  }

  main {
    padding: 16px;
  }

  .toolbar,
  .metric-grid,
  .grid {
    grid-template-columns: 1fr;
  }
}