:root {
  color-scheme: light;
  --bg: #f4f5f1;
  --surface: #fbfbf8;
  --surface-strong: #ffffff;
  --ink: #182025;
  --muted: #5b6a72;
  --border: #d7ddd4;
  --accent: #0f766e;
  --accent-soft: #dff3ef;
  --warn: #c2612f;
  --shadow: 0 10px 30px rgba(24, 32, 37, 0.06);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.5 Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  min-height: 100vh;
}

a {
  color: inherit;
}

.shell {
  width: min(1480px, calc(100vw - 32px));
  margin: 0 auto;
}

.topbar {
  background: var(--surface-strong);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0 20px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 30px;
  line-height: 1.1;
}

h2 {
  font-size: 15px;
}

.meta {
  color: var(--muted);
  text-align: right;
}

.control-band {
  padding: 20px 0 28px;
}

.layout {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 18px;
}

.control-panel,
.results-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.control-panel {
  padding: 16px;
  display: grid;
  gap: 18px;
  align-self: start;
  position: sticky;
  top: 16px;
}

.results-panel {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 220px);
}

.query-form,
.query-state,
.tag-section,
.method-note {
  display: grid;
  gap: 12px;
}

.field {
  display: grid;
  gap: 6px;
}

.suggest-input {
  position: relative;
}

.field span {
  color: var(--muted);
  font-size: 12px;
}

input,
select,
.button {
  min-height: 40px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font: inherit;
}

input,
select {
  width: 100%;
  padding: 0 12px;
  background: var(--surface-strong);
  color: var(--ink);
}

.suggest-input.open input {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.suggestion-list {
  position: absolute;
  inset: 100% 0 auto;
  z-index: 100;
  display: grid;
  gap: 0;
  padding: 6px 0;
  border: 1px solid var(--border);
  border-top: 0;
  border-radius: 0 0 8px 8px;
  background: var(--surface-strong);
  box-shadow: var(--shadow);
}

.suggestion-list[hidden] {
  display: none;
}

.suggestion-item {
  appearance: none;
  min-height: 34px;
  padding: 0 14px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.suggestion-item:hover,
.suggestion-item.active {
  background: #f3f6f3;
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(0, 180px) minmax(0, 1fr);
  gap: 12px;
}

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

.date-input {
  position: relative;
}

.date-input input {
  padding-right: 42px;
}

.date-trigger {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  background: transparent;
  cursor: pointer;
  font: inherit;
}

.date-picker {
  position: fixed;
  z-index: 200;
  width: 320px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-strong);
  box-shadow: var(--shadow);
}

.date-picker-header,
.date-picker-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.date-title {
  font-weight: 600;
}

.date-nav {
  min-width: 32px;
  min-height: 32px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-strong);
  cursor: pointer;
}

.date-weekdays,
.date-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-top: 10px;
}

.date-weekdays {
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.date-cell {
  min-height: 36px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}

.date-cell:hover {
  background: #f3f6f3;
}

.date-cell.selected {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.date-cell.muted,
.date-cell:disabled {
  color: #b2b9be;
  cursor: default;
}

.toolbar-actions {
  display: flex;
  align-items: end;
  gap: 8px;
  flex-wrap: wrap;
}

.button {
  padding: 0 14px;
  background: var(--surface-strong);
  color: var(--ink);
  cursor: pointer;
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #f7fbfa;
}

.button:hover {
  filter: brightness(0.98);
}

.chip-row,
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip,
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 32px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  color: var(--ink);
  white-space: nowrap;
}

.chip button,
.tag-chip button {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
  padding: 0;
}

.chip.include {
  background: var(--accent-soft);
  border-color: #b6dfd7;
}

.chip.exclude {
  background: #f8e9df;
  border-color: #efc9b4;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.counter,
.status {
  color: var(--muted);
}

.status.error {
  color: var(--warn);
}

.results-header,
.results-footer {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.55);
}

.results-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.zotero-hint {
  margin: 0;
  align-self: center;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
  cursor: help;
  text-align: right;
  max-width: 320px;
}
.zotero-hint:empty {
  display: none;
}

.results-footer {
  border-top: 1px solid var(--border);
  border-bottom: 0;
  display: flex;
  justify-content: center;
}

.table-wrap {
  overflow: auto;
  flex: 1;
  min-height: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--surface);
  color: var(--muted);
  font-size: 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th,
td {
  padding: 12px 14px;
  vertical-align: top;
}

.nowrap {
  white-space: nowrap;
}

tbody tr + tr td {
  border-top: 1px solid #e7ebe5;
}

tbody tr:hover {
  background: rgba(15, 118, 110, 0.03);
}

.spacer-row:hover {
  background: transparent;
}

.spacer-row td {
  padding: 0 !important;
  border: 0 !important;
}

th:nth-child(1),
td:nth-child(1) {
  width: 68px;
}

th:nth-child(2),
td:nth-child(2) {
  width: 34%;
}

th:nth-child(3),
td:nth-child(3),
th:nth-child(4),
td:nth-child(4),
th:nth-child(5),
td:nth-child(5),
th:nth-child(6),
td:nth-child(6) {
  width: 120px;
}

th:nth-child(7),
td:nth-child(7),
th:nth-child(8),
td:nth-child(8) {
  width: 240px;
}

.paper-title {
  font-weight: 600;
  text-decoration: none;
}

.paper-title:hover {
  color: var(--accent);
}

.mini-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.mini-chip {
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--tag-bg, #eef1eb);
  border: 1px solid var(--tag-border, #dbe1d7);
  color: var(--tag-ink, var(--ink));
  font-size: 12px;
}

.mini-chip button {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  line-height: inherit;
  padding: 0;
  margin: 0;
  cursor: pointer;
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .control-panel {
    position: static;
  }

  .table-wrap {
    max-height: none;
    min-height: 60vh;
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(100vw - 20px, 1480px);
  }

  .topbar-inner {
    align-items: start;
    flex-direction: column;
  }

  h1 {
    font-size: 24px;
  }

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

  .date-range {
    grid-template-columns: 1fr;
  }

  .results-header,
  .results-footer {
    padding-inline: 12px;
  }
}