:root {
  color-scheme: light;
  --ink: #24313a;
  --muted: #667782;
  --line: #d9e0e3;
  --paper: #ffffff;
  --panel: #ffffff;
  --soft: #f5f7f6;
  --accent: #0b6770;
  --accent-dark: #084a51;
  --accent-warm: #9a6a16;
  --focus: #d7a43c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--ink);
  background: var(--paper);
}

.app {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 0 18px;
}

p { margin: 0; color: var(--muted); }

.tabs {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: center;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.tabs a {
  border: 0;
  border-bottom: 3px solid transparent;
  border-radius: 0;
  padding: 0 0 8px;
  color: var(--accent-dark);
  text-decoration: none;
  background: transparent;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
}

.tabs a.active {
  color: var(--accent);
  background: transparent;
  border-bottom-color: var(--accent-warm);
}

.controls {
  display: grid;
  gap: 12px;
  justify-items: center;
  margin-bottom: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--soft);
}

.control-row {
  width: 100%;
  max-width: none;
}

.control-row-full {
  display: block;
}

.control-row-filters {
  display: grid;
  grid-template-columns: minmax(105px, 140px) minmax(190px, auto);
  gap: 12px;
  align-items: end;
}

.sources-control {
  min-width: 0;
}

.year-control {
  min-width: 0;
}

.button-row {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.button-row button {
  width: auto;
  min-width: 130px;
}

label span {
  display: block;
  font-size: .82rem;
  font-weight: 700;
  margin-bottom: 5px;
  color: var(--accent-dark);
  font-family: Arial, Helvetica, sans-serif;
}

.snippet-control > span {
  display: block;
  font-size: .82rem;
  font-weight: 700;
  margin-bottom: 5px;
  color: var(--accent-dark);
  font-family: Arial, Helvetica, sans-serif;
}

input, select, button {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 8px 10px;
  font: 400 1rem Arial, Helvetica, sans-serif;
  background: var(--panel);
  color: var(--ink);
}

textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 10px;
  font: 400 1rem Arial, Helvetica, sans-serif;
  background: var(--panel);
  color: var(--ink);
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus,
button:focus {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

button {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
  cursor: pointer;
  padding-left: 14px;
  padding-right: 14px;
}

button:hover { background: var(--accent-dark); }

.snippet-options {
  min-height: 40px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--panel);
  padding: 7px 10px;
  font-family: Arial, Helvetica, sans-serif;
}

.snippet-options label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: .82rem;
}

.snippet-options input {
  width: auto;
  min-height: 0;
  margin: 0;
}

.summary {
  min-height: 24px;
  display: flex;
  gap: 12px;
  align-items: center;
  color: var(--muted);
  margin-bottom: 7px;
  font-family: Arial, Helvetica, sans-serif;
}

.result-actions {
  display: grid;
  grid-template-columns: repeat(2, max-content);
  justify-content: start;
  gap: 10px;
  margin-bottom: 12px;
}

.result-actions[hidden] {
  display: none;
}

.result-actions button {
  width: auto;
  min-width: 130px;
}

.results {
  display: grid;
  gap: 10px;
}

.ai-controls {
  display: grid;
  gap: 12px;
  justify-items: stretch;
  margin-bottom: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--soft);
}

.request {
  display: block;
  width: 100%;
  max-width: none;
}

.ai-filters {
  display: grid;
  width: 100%;
  max-width: 860px;
  grid-template-columns: minmax(210px, 1fr) minmax(100px, 130px) minmax(140px, 165px) minmax(120px, 145px) minmax(120px, 145px);
  gap: 12px;
  align-items: end;
}

.source-options {
  min-height: 40px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--panel);
  padding: 7px 10px;
  font-family: Arial, Helvetica, sans-serif;
}

.source-options label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .95rem;
}

.source-options input {
  width: auto;
  min-height: 0;
}

.answer-draft {
  margin-bottom: 12px;
}

.answer-draft h2 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  color: var(--accent-dark);
}

.answer-draft textarea {
  margin-bottom: 8px;
}

.answer-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 10px;
}

.answer-actions button {
  width: auto;
  min-width: 140px;
}

.ai-controls .button-row {
  justify-self: stretch;
  max-width: none;
  justify-content: center;
}

.ai-controls .button-row button {
  flex: 0 0 auto;
}

.generated-answer {
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--panel);
  padding: 14px;
  line-height: 1.5;
}

.generated-answer p {
  margin: 0 0 10px;
}

.generated-answer ul,
.generated-answer ol {
  margin-top: 0;
  padding-left: 1.4rem;
}

.generated-answer table {
  width: 100%;
  border-collapse: collapse;
  margin: 10px 0;
  font-size: .94rem;
  font-family: Arial, Helvetica, sans-serif;
}

.generated-answer th,
.generated-answer td {
  border: 1px solid var(--line);
  padding: 6px 8px;
  text-align: left;
  vertical-align: top;
}

.generated-answer th {
  background: #eef5f4;
  color: var(--accent-dark);
}

.generated-answer a {
  color: var(--accent-dark);
  font-weight: 700;
}

.issue-report-panel {
  margin-bottom: 10px;
}

.issue-report-panel p {
  margin: 0 0 6px;
  color: var(--muted);
}

.quality {
  display: inline-block;
  border-radius: 4px;
  padding: 2px 8px;
  margin-left: 8px;
  font-size: .76rem;
  font-weight: 700;
  vertical-align: middle;
  font-family: Arial, Helvetica, sans-serif;
}

.quality-strong {
  color: #07543c;
  background: #dff5ea;
}

.quality-supporting {
  color: #684500;
  background: #f7e6bd;
}

.quality-weak {
  color: #6b2b2b;
  background: #f9d7d7;
}

.result {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  padding: 12px 14px;
}

.result h2 {
  margin: 0 0 6px;
  font-size: 1.08rem;
  letter-spacing: 0;
}

.result h2 a {
  color: var(--accent-dark);
  text-decoration: none;
}

.result h2 a:hover { text-decoration: underline; }

.meta {
  color: var(--muted);
  font-size: .88rem;
  margin-bottom: 8px;
  font-family: Arial, Helvetica, sans-serif;
}

.source-link {
  margin-bottom: 8px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: .9rem;
}

.source-link a {
  color: var(--accent-dark);
  font-weight: 700;
}

.snippet {
  line-height: 1.45;
}

mark {
  background: #f7e6bd;
  padding: 0 .1em;
}

.empty {
  border: 1px dashed var(--line);
  border-radius: 4px;
  padding: 24px;
  background: rgba(255,255,255,.6);
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
}

@media (max-width: 760px) {
  .app { padding: 0; }
  .tabs { justify-content: flex-start; }
  .control-row-filters { grid-template-columns: 1fr; }
  .ai-filters { grid-template-columns: 1fr; }
  .result-actions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .button-row button,
  .result-actions button,
  .answer-actions button { width: 100%; }
}