:root {
  color-scheme: light;
  --bg: #edf1ee;
  --ink: #10231f;
  --muted: #5f706a;
  --panel: #ffffff;
  --panel-soft: #f7f9f4;
  --line: #d6dfd8;
  --accent: #17745f;
  --accent-dark: #0d3f35;
  --evidence: #d8b96f;
  --leaf: #dcefc5;
  --blue: #315f82;
  --warn: #925b1c;
  --danger: #9b3e3b;
  --ok: #24724d;
  --shadow: 0 24px 58px rgba(16, 35, 31, 0.11);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

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

body.is-busy,
body.is-busy * {
  cursor: progress !important;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.app-shell {
  min-height: 100vh;
}

.hero {
  background:
    linear-gradient(135deg, rgba(16, 35, 31, 0.99) 0%, rgba(18, 69, 58, 0.98) 57%, rgba(22, 91, 76, 0.96) 100%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: auto, 48px 48px, 48px 48px;
  color: #fffdf7;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.nav-bar,
.search-card,
.workspace {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 40px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: var(--radius);
  background: rgba(255, 253, 247, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 253, 247, 0.18);
}

.brand-mark svg {
  width: 46px;
  height: 46px;
  display: block;
}

.logo-plate {
  fill: var(--leaf);
  stroke: rgba(255, 253, 247, 0.48);
  stroke-width: 1.1;
}

.logo-cap-top {
  fill: var(--accent-dark);
  stroke: rgba(255, 253, 247, 0.42);
  stroke-width: 1.05;
  stroke-linejoin: round;
}

.logo-cap-band {
  fill: none;
  stroke: var(--accent-dark);
  stroke-width: 1.9;
  stroke-linecap: round;
}

.logo-tassel {
  fill: none;
  stroke: var(--evidence);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.logo-signal {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.logo-question {
  fill: #fffdf7;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 22px;
  font-weight: 950;
  text-anchor: middle;
}

.brand strong,
.brand span {
  display: block;
}

.brand strong {
  font-size: 1.04rem;
}

.brand span {
  margin-top: 2px;
  color: rgba(255, 253, 247, 0.72);
  font-size: 0.86rem;
}

.nav-actions {
  display: flex;
  gap: 10px;
}

.nav-actions button,
.panel-heading button {
  min-height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  color: #fffdf7;
  padding: 0 13px;
  font-size: 0.9rem;
  font-weight: 800;
}

.search-card {
  display: grid;
  grid-template-columns: minmax(330px, 0.92fr) minmax(320px, 1.08fr);
  gap: 46px;
  align-items: center;
  padding-bottom: 36px;
}

.hero-eyebrow {
  display: block;
  margin-bottom: 14px;
  color: var(--evidence);
  font-size: 0.94rem;
  font-weight: 900;
}

.search-copy h1 {
  max-width: 760px;
  margin: 0;
  color: #fffdf7;
  font-size: 4.35rem;
  line-height: 0.93;
  font-weight: 950;
  text-transform: uppercase;
}

.hero-slogan,
.hero-support {
  max-width: 660px;
}

.hero-slogan {
  margin: 20px 0 0;
  color: #fffdf7;
  font-size: 1.72rem;
  line-height: 1.14;
  font-weight: 900;
}

.hero-support {
  margin: 14px 0 0;
  color: rgba(246, 249, 244, 0.88);
  font-size: 1.16rem;
  line-height: 1.48;
}

.search-form {
  background: var(--panel);
  color: var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

label {
  display: grid;
  gap: 8px;
  color: inherit;
  font-size: 0.88rem;
  font-weight: 850;
}

.main-search textarea {
  min-height: 156px;
  font-size: 1.08rem;
}

.search-options {
  margin-top: 12px;
  display: flex;
  align-items: end;
  flex-wrap: wrap;
  gap: 12px 18px;
}

.search-options label {
  max-width: 220px;
}

.search-options .inline-check {
  max-width: none;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 46px;
  font-weight: 750;
}

.inline-check input {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcf8;
  color: var(--ink);
  padding: 12px 13px;
  line-height: 1.45;
  outline: none;
}

textarea {
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: #89958f;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(25, 113, 93, 0.13);
}

.search-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 13px;
}

.primary-button,
.secondary-button {
  min-height: 44px;
  border-radius: var(--radius);
  padding: 0 16px;
  font-weight: 900;
}

.primary-button {
  flex: 1 1 180px;
  background: var(--accent);
  color: #fff;
}

.primary-button.is-loading {
  position: relative;
  padding-left: 42px;
}

.primary-button.is-loading::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 50%;
  width: 15px;
  height: 15px;
  margin-top: -8px;
  border: 2px solid rgba(255, 255, 255, 0.45);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.secondary-button {
  flex: 1 1 130px;
  background: #edf2e9;
  color: var(--accent-dark);
}

.advanced {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-soft);
  padding: 11px 12px;
}

.advanced summary {
  cursor: pointer;
  color: var(--accent-dark);
  font-size: 0.9rem;
  font-weight: 900;
}

.advanced-grid {
  display: grid;
  gap: 14px;
  margin-top: 13px;
}

.advanced-builder {
  display: grid;
  gap: 10px;
}

.builder-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.builder-toolbar strong {
  color: var(--accent-dark);
  font-size: 0.9rem;
}

.mini-button,
.compact-button {
  min-height: 36px;
  border-radius: var(--radius);
  padding: 0 12px;
  font-weight: 850;
}

.mini-button {
  background: var(--accent);
  color: #fff;
}

.compact-button {
  justify-self: start;
  flex: 0 0 auto;
}

.query-builder-rows {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 0;
  list-style-position: inside;
}

.advanced-entry-row {
  display: grid;
  grid-template-columns: minmax(190px, 1fr) minmax(150px, 0.7fr) 110px auto;
  gap: 10px;
  align-items: end;
}

.advanced-term-list {
  display: grid;
  gap: 8px;
}

.advanced-term-list > strong {
  color: var(--accent-dark);
  font-size: 0.86rem;
}

.advanced-term-item {
  display: grid;
  grid-template-columns: auto minmax(160px, 1fr) minmax(140px, 0.6fr) auto;
  gap: 8px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 8px;
}

.advanced-term-text {
  min-width: 0;
  color: #32423d;
  font-size: 0.9rem;
  font-weight: 800;
  word-break: break-word;
}

.operator-placeholder {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  border-radius: var(--radius);
  background: #edf3ee;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 850;
}

.remove-query-row {
  min-height: 45px;
  border-radius: var(--radius);
  background: #f3e9e7;
  color: var(--danger);
  padding: 0 12px;
  font-size: 0.86rem;
  font-weight: 850;
}

.form-warning {
  margin: 0;
  color: var(--warn);
  font-size: 0.86rem;
  font-weight: 760;
}

.field-grid {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 12px;
}

.field-grid > label:only-child {
  grid-column: 1 / -1;
}

.switch-row {
  display: grid;
  gap: 8px;
}

.switch {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #344842;
  font-weight: 750;
}

.switch input {
  width: 17px;
  height: 17px;
  accent-color: var(--accent);
}

.workspace {
  padding: 26px 0 48px;
}

.site-footer {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 0 0 28px;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

.site-footer a {
  color: var(--accent-dark);
  font-weight: 850;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.status-panel,
.query-panel,
.validation-grid,
.article,
.empty-state {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.status-panel {
  padding: 18px;
  margin-bottom: 16px;
}

.status-panel p,
.status-panel strong {
  margin: 0;
}

.status-panel p {
  margin-top: 5px;
  color: var(--muted);
}

.query-panel {
  margin-bottom: 16px;
  overflow: hidden;
}

.query-panel h3 {
  margin: 0;
  padding: 14px 16px 0;
  font-size: 0.96rem;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

.panel-heading h2 {
  margin: 0;
  font-size: 1rem;
}

.panel-heading button {
  border-color: var(--line);
  background: #f4f8ef;
  color: var(--accent-dark);
}

pre {
  margin: 0;
  padding: 16px;
  white-space: pre-wrap;
  word-break: break-word;
  color: #20352f;
  background: #fbfcf8;
  line-height: 1.5;
}

.validation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  margin-bottom: 16px;
  overflow: hidden;
}

.check {
  padding: 14px;
  background: #fff;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.check strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ok);
}

.check.failed strong {
  color: var(--danger);
}

.check p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.results-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.result-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px;
}

.result-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.result-tabs button,
.discussion-modes button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8faf5;
  color: #31443d;
  padding: 0 12px;
  font-size: 0.88rem;
  font-weight: 850;
}

.result-tabs button.active,
.result-tabs button[aria-selected="true"],
.discussion-modes button.active {
  border-color: rgba(25, 113, 93, 0.28);
  background: var(--accent);
  color: #fff;
}

.discuss-button {
  flex: 0 0 auto;
  max-width: 240px;
}

.audit-panel {
  margin-top: 18px;
}

.ranking-note {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.results {
  display: grid;
  gap: 14px;
}

.article {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 210px;
  gap: 18px;
  padding: 18px;
}

.journal-line {
  margin: 0 0 8px;
  color: #51615b;
  font-size: 0.82rem;
  font-weight: 750;
  line-height: 1.35;
}

.article-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 6px;
  padding: 0 8px;
  background: #edf3ee;
  color: #31443d;
  font-size: 0.77rem;
  font-weight: 850;
}

.article h2 {
  margin: 0 0 12px;
  font-size: 1.16rem;
  line-height: 1.32;
}

.score-reasons {
  margin: -4px 0 12px;
  border-left: 3px solid var(--accent);
  padding-left: 10px;
  color: #375049;
  font-size: 0.9rem;
  line-height: 1.45;
}

.study-data {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 10px;
  margin: 0 0 16px;
  color: #32423d;
}

.study-data dt {
  color: var(--muted);
  font-weight: 850;
}

.study-data dd {
  margin: 0;
  word-break: break-word;
}

.description {
  display: grid;
  gap: 7px;
}

.description h3,
.description p {
  margin: 0;
}

.description h3 {
  color: #22342f;
  font-size: 0.9rem;
}

.description p {
  color: #45534e;
  line-height: 1.55;
}

.description .source {
  color: var(--muted);
  font-size: 0.88rem;
}

.article-side {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.article-side a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  font-weight: 850;
  text-decoration: none;
}

.article-side a.pdf-link {
  background: var(--blue);
}

.pdf-status {
  border-radius: var(--radius);
  background: #f6f0e6;
  color: var(--warn);
  padding: 10px;
  font-size: 0.86rem;
  font-weight: 750;
  line-height: 1.35;
}

.article-side details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  background: #fbfcf8;
}

.article-side summary {
  cursor: pointer;
  color: var(--accent-dark);
  font-size: 0.86rem;
  font-weight: 850;
}

.attempts {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.empty-state {
  padding: 22px;
}

.empty-state h2,
.empty-state p {
  margin: 0;
}

.empty-state p {
  margin-top: 6px;
  color: var(--muted);
}

.pubmed-fallback {
  margin-top: 16px;
  min-height: 40px;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  padding: 0 14px;
  font-weight: 900;
}

.load-more-panel {
  display: flex;
  justify-content: center;
  margin-top: 16px;
}

.load-more-panel .secondary-button {
  flex: 0 1 280px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(20, 32, 29, 0.42);
}

.discussion-modal {
  width: min(820px, 100%);
  max-height: min(86vh, 860px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  overflow: auto;
}

.discussion-modal .panel-heading {
  background: #fbfcf8;
}

.discussion-body {
  display: grid;
  gap: 18px;
  padding: 20px;
}

.discussion-body p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.discussion-modes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.discussion-modes button.active {
  box-shadow: inset 0 -3px 0 rgba(216, 185, 111, 0.9);
}

.discussion-placeholder {
  border-radius: var(--radius);
  background: #f4f8ef;
  padding: 12px;
}

.discussion-result {
  display: grid;
  gap: 14px;
  animation: fadeIn 0.18s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.discussion-card {
  display: grid;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 16px;
}

.discussion-card.is-highlighted {
  border-color: rgba(25, 113, 93, 0.45);
  box-shadow: 0 0 0 3px rgba(25, 113, 93, 0.08);
}

.discussion-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.discussion-card-header > div {
  display: grid;
  gap: 4px;
}

.discussion-card-header strong {
  color: var(--ink);
}

.discussion-card-header span {
  color: var(--muted);
  font-size: 0.86rem;
}

.discussion-card h3 {
  margin: 12px 0 0;
  font-size: 1.04rem;
  color: var(--ink);
}

.discussion-card p,
.discussion-card li {
  color: var(--ink);
  line-height: 1.6;
}

.discussion-card ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 20px;
}

.discussion-meta {
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
  font-size: 0.9rem;
  color: var(--muted) !important;
}

@media (max-width: 920px) {
  .search-card {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .search-copy h1 {
    max-width: 760px;
    font-size: 3.45rem;
    line-height: 0.98;
  }

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

  .results-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .result-actions {
    justify-content: flex-start;
  }

  .discuss-button {
    max-width: none;
  }

  .article-side {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 18px;
  }

  .nav-bar,
  .search-card,
  .workspace {
    width: min(100%, calc(100vw - 28px));
  }

  .nav-bar {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 28px;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
  }

  .brand-mark svg {
    width: 42px;
    height: 42px;
  }

  .brand span {
    font-size: 0.8rem;
  }

  .search-card {
    gap: 24px;
    padding-bottom: 22px;
  }

  .search-copy h1 {
    font-size: 2.55rem;
    line-height: 0.98;
  }

  .hero-slogan {
    font-size: 1.28rem;
    line-height: 1.2;
  }

  .hero-support {
    font-size: 1rem;
  }

  .nav-actions,
  .search-controls,
  .field-grid,
  .advanced-entry-row,
  .advanced-term-item {
    width: 100%;
    grid-template-columns: 1fr;
  }

  .nav-actions button,
  .search-controls button {
    flex: 1;
  }

  .builder-toolbar,
  .result-tabs,
  .result-actions,
  .discussion-modes {
    align-items: stretch;
    flex-direction: column;
  }

  .result-tabs button,
  .result-actions button,
  .discussion-modes button,
  .discussion-card-header .compact-button,
  .mini-button,
  .remove-query-row {
    width: 100%;
  }

  .discussion-card-header {
    align-items: stretch;
    flex-direction: column;
  }
}