:root {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.45;
  color-scheme: light dark;
}

body {
  margin: 0;
  background: #f6f7f9;
  color: #1c1f24;
}

@media (prefers-color-scheme: dark) {
  body { background: #14161a; color: #e7e8eb; }
}

.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 12px 24px;
  background: #1c1f24;
  color: #f6f7f9;
  border-bottom: 1px solid #2a2e35;
}
.topbar h1 { margin: 0; font-size: 18px; font-weight: 600; }
.topbar nav { display: flex; gap: 16px; flex: 1; }
.topbar nav a { color: #c9cbcf; text-decoration: none; }
.topbar nav a:hover { color: #fff; }
.topbar .user { opacity: 0.7; font-size: 13px; }

.content { padding: 24px; max-width: 1200px; margin: 0 auto; }

.loading {
  display: flex; align-items: center; justify-content: center;
  height: 100vh; opacity: 0.6;
}

/* === page primitives === */
.page-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
.page-head h2 { margin: 0; }
.toolbar {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px;
}
.search {
  flex: 1; max-width: 360px;
  padding: 8px 12px; border: 1px solid #d6d8dd; border-radius: 6px;
  background: #fff; color: inherit; font-size: 14px;
}
@media (prefers-color-scheme: dark) {
  .search { background: #1c1f24; border-color: #2a2e35; }
}
.checkbox {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; cursor: pointer;
}
.hint { opacity: 0.65; font-size: 13px; margin: 4px 0; }
.error-text { color: #c0392b; font-size: 13px; margin: 8px 0; }
.empty {
  padding: 48px 24px; text-align: center; opacity: 0.6;
  border: 1px dashed #d6d8dd; border-radius: 8px;
}

/* === buttons === */
.btn {
  appearance: none; cursor: pointer;
  padding: 6px 14px; border: 1px solid transparent; border-radius: 6px;
  font-size: 14px; line-height: 1.4;
  transition: background-color 0.1s, border-color 0.1s;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn--default { background: #fff; border-color: #d6d8dd; color: inherit; }
.btn--default:hover:not(:disabled) { background: #f1f2f5; }
.btn--primary { background: #2563eb; color: #fff; }
.btn--primary:hover:not(:disabled) { background: #1d4ed8; }
.btn--danger { background: transparent; border-color: #c0392b; color: #c0392b; }
.btn--danger:hover:not(:disabled) { background: #c0392b; color: #fff; }
.btn--ghost { background: transparent; color: inherit; }
.btn--ghost:hover:not(:disabled) { background: rgba(127,127,127,0.1); }

@media (prefers-color-scheme: dark) {
  .btn--default { background: #1c1f24; border-color: #2a2e35; }
  .btn--default:hover:not(:disabled) { background: #25282e; }
}

/* === tables === */
.table {
  width: 100%; border-collapse: collapse;
  background: #fff; border-radius: 8px; overflow: hidden;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}
.table th, .table td {
  text-align: left; padding: 10px 14px; vertical-align: top;
  border-bottom: 1px solid #eef0f3;
  font-size: 14px;
}
.table th { font-weight: 600; opacity: 0.7; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
.table tr:last-child td { border-bottom: none; }
.row-actions { white-space: nowrap; text-align: right; }
.row-actions .btn { margin-left: 6px; }
.row--archived { opacity: 0.55; }

@media (prefers-color-scheme: dark) {
  .table { background: #1c1f24; box-shadow: none; }
  .table th, .table td { border-bottom-color: #2a2e35; }
}

/* === fields === */
.field { display: flex; flex-direction: column; gap: 4px; }
.field__label { font-size: 12px; opacity: 0.7; }
.field__input {
  padding: 8px 10px; border: 1px solid #d6d8dd; border-radius: 6px;
  background: #fff; color: inherit; font-size: 14px;
  font-family: inherit;
}
.field__input--area { min-height: 64px; resize: vertical; }
.field__input--err { border-color: #c0392b; }
.field__error { color: #c0392b; font-size: 12px; }

@media (prefers-color-scheme: dark) {
  .field__input { background: #1c1f24; border-color: #2a2e35; }
}

.form-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px;
}
.form-actions { display: flex; align-items: center; gap: 12px; margin-top: 16px; }

/* === modal === */
.modal__backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 100; padding: 24px;
}
.modal {
  background: #fff; color: inherit;
  border-radius: 8px; width: min(720px, 100%);
  max-height: calc(100vh - 48px); overflow: hidden;
  display: flex; flex-direction: column;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}
.modal__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid #eef0f3;
}
.modal__header h3 { margin: 0; font-size: 16px; }
.modal__close {
  background: none; border: none; color: inherit; cursor: pointer;
  font-size: 22px; line-height: 1; padding: 4px 8px; border-radius: 4px;
}
.modal__close:hover { background: rgba(127,127,127,0.1); }
.modal__body { padding: 20px; overflow: auto; }
.modal__footer {
  display: flex; justify-content: flex-end; gap: 8px;
  padding: 12px 20px; border-top: 1px solid #eef0f3;
}

@media (prefers-color-scheme: dark) {
  .modal { background: #1c1f24; }
  .modal__header, .modal__footer { border-color: #2a2e35; }
}