:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --panel: #ffffff;
  --text: #172033;
  --muted: #647086;
  --line: #dfe5ef;
  --accent: #1473e6;
  --accent-dark: #0f5fbf;
  --danger: #c93535;
  --ok: #11845b;
  --warn: #9a6412;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 0 14px;
  cursor: pointer;
}

button:hover {
  border-color: #b9c4d6;
}

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

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

.danger {
  border-color: #f1c6c6;
  background: #fff0f0;
  color: var(--danger);
}

.danger:hover {
  border-color: #e3a0a0;
  background: #ffe5e5;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 58px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  padding: 0 24px;
  backdrop-filter: blur(10px);
}

.brand {
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

.track-link {
  color: var(--accent);
  text-decoration: none;
}

.track-link:hover {
  text-decoration: underline;
}

nav form {
  margin: 0;
}

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

.actions form {
  margin: 0;
}

.filters {
  display: grid;
  grid-template-columns: repeat(5, minmax(150px, 1fr)) auto;
  gap: 12px;
  align-items: end;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  margin-bottom: 18px;
  padding: 14px;
}

.track-filters {
  grid-template-columns: minmax(180px, 240px) minmax(180px, 260px) auto;
}

.filter-actions {
  display: flex;
  gap: 8px;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 0 14px;
  text-decoration: none;
}

.button-link:hover {
  border-color: #b9c4d6;
}

.button-link.disabled {
  cursor: default;
  opacity: 0.45;
}

.button-link.disabled:hover {
  border-color: var(--line);
}

.sort-link {
  color: var(--text);
  text-decoration: none;
}

.sort-link:hover {
  color: var(--accent);
}

.shell {
  width: min(1220px, calc(100% - 32px));
  margin: 28px auto;
}

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

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 28px;
  line-height: 1.2;
}

h2 {
  font-size: 17px;
}

p,
span {
  color: var(--muted);
}

.login-panel {
  width: min(420px, 100%);
  margin: 90px auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 26px;
}

.form,
.category-card {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
}

input,
select {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 0 10px;
}

.alert {
  border-radius: 6px;
  background: #fff0f0;
  color: var(--danger);
  padding: 10px 12px;
}

.info-box {
  display: grid;
  gap: 6px;
  border: 1px solid #b7d7ff;
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: #eef6ff;
  margin-bottom: 18px;
  padding: 14px 16px;
}

.info-box summary {
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
  list-style-position: inside;
}

.info-content {
  display: grid;
  gap: 6px;
  padding-top: 8px;
}

.info-box p {
  color: #334765;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.stats article,
.category-card,
.table-wrap,
.bulk {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.stats article {
  display: grid;
  gap: 4px;
  padding: 16px;
}

.stats strong {
  font-size: 26px;
}

.bulk {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  padding: 14px;
}

.bulk select {
  width: 220px;
}

.table-wrap {
  overflow-x: auto;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
}

.pagination-pages {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.pagination-actions {
  display: flex;
  gap: 8px;
}

.page-link,
.pagination-ellipsis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 0 9px;
  text-decoration: none;
}

.page-link:hover {
  border-color: #b9c4d6;
}

.page-link.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.pagination-ellipsis {
  border-color: transparent;
  background: transparent;
  color: var(--muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 1040px;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 12px 14px;
  text-align: left;
  vertical-align: middle;
}

th {
  background: #f9fbfe;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

td strong,
td span {
  display: block;
}

.inline-form {
  display: flex;
  gap: 8px;
  margin: 0;
}

.inline-form select {
  width: 180px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.category-card {
  gap: 10px;
  padding: 14px;
}

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

.category-card label {
  gap: 4px;
  font-size: 11px;
  line-height: 1.25;
}

.category-card input {
  min-height: 34px;
  padding: 0 8px;
}

.category-card button {
  min-height: 34px;
}

.status {
  display: inline-flex;
  border-radius: 999px;
  padding: 3px 9px;
  font-size: 13px;
}

.status.done {
  background: #e7f7ef;
  color: var(--ok);
}

.status.pending {
  background: #fff6e5;
  color: var(--warn);
}

.status.error {
  background: #fff0f0;
  color: var(--danger);
}

@media (max-width: 760px) {
  .topbar,
  .heading,
  .bulk,
  .pagination {
    align-items: stretch;
    flex-direction: column;
  }

  nav {
    flex-wrap: wrap;
  }

  .stats,
  .category-grid,
  .filters {
    grid-template-columns: 1fr;
  }

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

  .pagination-pages,
  .pagination-actions {
    justify-content: flex-start;
  }

  .bulk select {
    width: 100%;
  }
}