:root {
  --color-paper: oklch(15% 0.01 240);
  --color-paper-2: oklch(22% 0.01 240);
  --color-ink: oklch(92% 0.01 240);
  --color-ink-muted: oklch(60% 0.01 240);
  --color-accent: oklch(72% 0.15 160);
  --color-danger: oklch(65% 0.2 25);
  --color-success: oklch(72% 0.15 145);
  --color-border: oklch(25% 0.01 240);
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 4px;
  --space: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  overflow-x: clip;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: calc(var(--space) * 3);
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(var(--space) * 2) 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: calc(var(--space) * 3);
}

header h1 {
  font-size: 16px;
  font-weight: 700;
  font-style: normal;
  letter-spacing: -0.02em;
}

.badge {
  display: inline-block;
  padding: 2px calc(var(--space));
  border-radius: var(--radius);
  font-size: 11px;
  font-weight: 700;
  background: var(--color-accent);
  color: var(--color-paper);
}

.badge--muted {
  background: var(--color-paper-2);
  color: var(--color-ink-muted);
  border: 1px solid var(--color-border);
}

/* Sections */
section {
  margin-bottom: calc(var(--space) * 4);
}

section h2 {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  margin-bottom: calc(var(--space) * 2);
  font-style: normal;
}

/* Cards */
.card {
  background: var(--color-paper-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 2);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: calc(var(--space) * 2);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
}

.stat__label {
  font-size: 11px;
  color: var(--color-ink-muted);
}

.stat__value {
  font-size: 14px;
  font-weight: 700;
  word-break: break-all;
}

/* Status bar */
.status-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.status-item {
  flex: 1 1 0;
  min-width: 140px;
  background: var(--color-paper-2);
  padding: calc(var(--space) * 1.5) calc(var(--space) * 2);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.status-item__icon {
  font-size: 10px;
  color: var(--color-accent);
  line-height: 1;
}

.status-item__label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.status-item__value {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-ink);
  word-break: break-all;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

th {
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space) calc(var(--space) * 1.5);
  border-bottom: 1px solid var(--color-border);
}

td {
  padding: var(--space) calc(var(--space) * 1.5);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

tr:nth-child(even) td {
  background: var(--color-paper-2);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

/* Buttons */
button, .btn {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  padding: calc(var(--space) * 0.75) calc(var(--space) * 2);
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: none;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-paper);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  opacity: 0.85;
}

.btn-outline {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-ink-muted);
}

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

.btn-danger:hover {
  opacity: 0.85;
}

.btn-sm {
  font-size: 11px;
  padding: 2px calc(var(--space));
}

/* Forms */
input, select {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--color-paper);
  color: var(--color-ink);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 0.75) calc(var(--space) * 1.5);
  outline: none;
}

input:focus, select:focus {
  border-color: var(--color-accent);
}

/* Toast */
.toast-container {
  position: fixed;
  top: calc(var(--space) * 2);
  right: calc(var(--space) * 2);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space);
}

.toast {
  background: var(--color-paper-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space)) calc(var(--space) * 2);
  font-size: 12px;
  max-width: 320px;
}

.toast--error {
  border-color: var(--color-danger);
  color: var(--color-danger);
}

.toast--success {
  border-color: var(--color-success);
  color: var(--color-success);
}

/* Skeleton */
.skeleton {
  background: var(--color-paper-2);
  border-radius: var(--radius);
  height: 14px;
  width: 80px;
  display: inline-block;
}

/* Confirm modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9998;
}

.modal {
  background: var(--color-paper-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 3);
  max-width: 400px;
  width: 90%;
}

.modal h3 {
  font-size: 14px;
  margin-bottom: calc(var(--space) * 2);
  font-style: normal;
}

.modal-actions {
  display: flex;
  gap: var(--space);
  justify-content: flex-end;
  margin-top: calc(var(--space) * 2);
}

/* Empty state */
.empty {
  color: var(--color-ink-muted);
  font-size: 12px;
  padding: calc(var(--space) * 3);
  text-align: center;
}

/* Add / Bulk card */
.card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: calc(var(--space) * 2);
}

.card__title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

/* Toggle switch (single ⇄ bulk) */
.toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space);
  cursor: pointer;
  user-select: none;
}

.toggle__label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
}

.toggle input { position: absolute; opacity: 0; pointer-events: none; }

.toggle__track {
  width: 34px;
  height: 18px;
  border-radius: 9px;
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  position: relative;
  flex: 0 0 auto;
}

.toggle__track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-ink-muted);
}

.toggle input:checked + .toggle__track { background: var(--color-accent); border-color: var(--color-accent); }
.toggle input:checked + .toggle__track::after { left: 18px; background: var(--color-paper); }

/* One-line form */
.form-row { display: flex; gap: var(--space); align-items: center; }
.form-row select, .form-row input { min-width: 0; }
.form-row .f-mode { flex: 0 0 108px; }
.form-row .f-grow { flex: 1 1 auto; }
.form-row .f-num  { flex: 0 0 84px; }
.form-row .btn { flex: 0 0 auto; white-space: nowrap; }

/* Uniform control height across the row */
.form-row > select,
.form-row > input,
.form-row > button { height: 34px; }

/* Flat inputs (no border line) so they read identical to the solid button;
   the darker fill defines them, focus still highlights with the accent. */
.form-row > input,
.form-row > select { border-color: transparent; }
.form-row > input:focus,
.form-row > select:focus { border-color: var(--color-accent); }

/* Icon button (square, matches input height) */
.btn-icon {
  width: 34px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  line-height: 1;
}

.input-error { border-color: var(--color-danger) !important; }
.row-err { font-size: 10px; color: var(--color-danger); margin-top: var(--space); }

.btn:disabled, button:disabled { opacity: 0.4; cursor: not-allowed; }
.btn:disabled:hover { opacity: 0.4; }

/* Responsive */
@media (max-width: 600px) {
  .container { padding: calc(var(--space) * 2); }
  .status-bar { flex-direction: column; }
  .status-item { min-width: unset; }
  header { flex-direction: column; gap: var(--space); align-items: flex-start; }
  .form-row { flex-wrap: wrap; }
  .form-row .f-mode, .form-row .f-grow, .form-row .f-num, .form-row .btn { flex: 1 1 100%; }
}