:root {
  --bg: #f4f7fb;
  --bg-strong: #edf3fa;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-solid: #ffffff;
  --surface-soft: #f8fbff;
  --text: #112033;
  --muted: #5b6977;
  --border: rgba(17, 32, 51, 0.09);
  --border-strong: rgba(17, 32, 51, 0.16);
  --primary: #0f62c9;
  --primary-soft: rgba(15, 98, 201, 0.12);
  --accent: #0f8c95;
  --accent-soft: rgba(15, 140, 149, 0.12);
  --warning: #b77a13;
  --warning-soft: rgba(183, 122, 19, 0.12);
  --danger: #bc3c3c;
  --danger-soft: rgba(188, 60, 60, 0.1);
  --success: #0c7a57;
  --success-soft: rgba(12, 122, 87, 0.1);
  --shadow: 0 24px 60px rgba(25, 52, 84, 0.08);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Source Sans 3", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(15, 98, 201, 0.14), transparent 28%),
    radial-gradient(circle at top right, rgba(15, 140, 149, 0.12), transparent 22%),
    linear-gradient(180deg, #f7fafd 0%, #edf3f8 100%);
  color: var(--text);
}

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

button {
  cursor: pointer;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.ambient {
  position: fixed;
  width: 380px;
  height: 380px;
  border-radius: 999px;
  filter: blur(70px);
  opacity: 0.45;
  pointer-events: none;
  z-index: 0;
}

.ambient-left {
  top: -120px;
  left: -120px;
  background: rgba(15, 98, 201, 0.22);
}

.ambient-right {
  right: -120px;
  top: 120px;
  background: rgba(15, 140, 149, 0.18);
}

.app-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 308px minmax(0, 1fr);
  gap: 24px;
  max-width: 1580px;
  margin: 0 auto;
  padding: 24px;
}

.sidebar {
  position: sticky;
  top: 24px;
  align-self: start;
  display: grid;
  gap: 18px;
}

.brand-card,
.sidebar-panel,
.panel-card,
.hero-card,
.metric-card,
.topbar {
  backdrop-filter: blur(18px);
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.65);
  box-shadow: var(--shadow);
}

.brand-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 20px;
  border-radius: var(--radius-xl);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: linear-gradient(145deg, var(--primary), #6aa3ee);
  color: #fff;
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.79rem;
  font-weight: 700;
}

.brand-card h1,
.hero-card h2,
.section-heading h2,
.section-banner h2,
.detail-hero h2,
.answer-panel h2,
.studio-output h2,
.compare-summary h2 {
  margin: 0;
  font-family: "Manrope", sans-serif;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.brand-card h1 {
  font-size: 1.45rem;
}

.nav-panel,
.sidebar-panel,
.panel-card {
  border-radius: var(--radius-xl);
}

.nav-panel {
  display: grid;
  gap: 8px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.64);
  border: 1px solid rgba(255, 255, 255, 0.68);
  box-shadow: var(--shadow);
}

.nav-link {
  border: 0;
  border-radius: 14px;
  background: transparent;
  color: var(--muted);
  padding: 14px 16px;
  text-align: left;
  font-weight: 700;
  transition: 180ms ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  background: rgba(17, 32, 51, 0.05);
  color: var(--text);
  outline: none;
}

.nav-link.active {
  background: linear-gradient(145deg, rgba(15, 98, 201, 0.14), rgba(15, 140, 149, 0.12));
  color: var(--text);
}

.sidebar-panel,
.panel-card {
  padding: 20px;
}

.sidebar-title,
.field-label {
  margin: 0 0 12px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--muted);
}

.sidebar-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 9px;
  color: var(--text);
}

.mini-stat-grid {
  display: grid;
  gap: 12px;
}

.mini-stat {
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
}

.mini-stat strong {
  display: block;
  font-size: 1.15rem;
  font-family: "Manrope", sans-serif;
}

.mini-stat span {
  color: var(--muted);
  font-size: 0.88rem;
}

.main-panel {
  min-width: 0;
}

.topbar {
  position: sticky;
  top: 24px;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
  border-radius: var(--radius-xl);
  margin-bottom: 24px;
}

.search-panel {
  position: relative;
  flex: 1;
}

.global-search,
.select-field,
.textarea-field {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.96);
  color: var(--text);
}

.global-search {
  padding: 15px 18px;
  font-size: 1rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.65);
}

.global-search:focus,
.select-field:focus,
.textarea-field:focus {
  outline: 2px solid rgba(15, 98, 201, 0.18);
  border-color: rgba(15, 98, 201, 0.35);
}

.search-results {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  width: min(100%, 720px);
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.search-results.hidden {
  display: none;
}

.search-result {
  width: 100%;
  padding: 14px 16px;
  border: 0;
  background: transparent;
  text-align: left;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.search-result + .search-result {
  border-top: 1px solid var(--border);
}

.search-result:hover,
.search-result:focus-visible {
  background: var(--bg-strong);
  outline: none;
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.status-pill,
.timestamp-pill,
.tag,
.chip,
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
}

.status-pill,
.timestamp-pill {
  padding: 10px 14px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
}

.view {
  display: none;
  gap: 24px;
}

.view.active {
  display: grid;
}

.hero-card {
  padding: 28px;
  border-radius: 34px;
  background:
    linear-gradient(120deg, rgba(15, 98, 201, 0.08), rgba(15, 140, 149, 0.08)),
    rgba(255, 255, 255, 0.86);
}

.hero-card p {
  margin: 0;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.9fr);
  gap: 24px;
}

.hero-title {
  font-size: clamp(2rem, 4vw, 3.25rem);
  margin: 8px 0 12px;
}

.hero-copy {
  max-width: 780px;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-badges,
.filter-row,
.detail-meta,
.source-links,
.source-tag-row,
.form-actions,
.suggestion-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag,
.chip {
  padding: 10px 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.72);
}

.badge {
  padding: 8px 12px;
  border: 1px solid transparent;
}

.badge.success {
  background: var(--success-soft);
  color: var(--success);
}

.badge.warning {
  background: var(--warning-soft);
  color: var(--warning);
}

.badge.danger {
  background: var(--danger-soft);
  color: var(--danger);
}

.hero-highlights {
  display: grid;
  gap: 14px;
}

.hero-highlight {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--border);
}

.hero-highlight h3,
.metric-card h3,
.disease-teaser h3,
.detail-section h3,
.timeline-card h3,
.content-snippet h3,
.compare-card-title,
.answer-card h3 {
  margin: 0 0 8px;
  font-family: "Manrope", sans-serif;
  letter-spacing: -0.02em;
}

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

.metric-card {
  padding: 22px 20px;
  border-radius: 24px;
}

.metric-card strong {
  display: block;
  font-size: 1.95rem;
  line-height: 1;
  font-family: "Manrope", sans-serif;
}

.metric-card p {
  margin: 6px 0 0;
  color: var(--muted);
}

.content-grid.two-column {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
}

.section-heading,
.section-banner,
.detail-hero,
.compare-summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.section-copy,
.detail-summary,
.muted,
.timeline-card p,
.content-snippet p,
.answer-card p,
.compare-summary p {
  color: var(--muted);
}

.disease-card-grid,
.update-feed,
.timeline-grid {
  display: grid;
  gap: 14px;
}

.disease-card-grid {
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.disease-teaser,
.timeline-card,
.content-snippet,
.compare-card,
.answer-card {
  border-radius: 18px;
  border: 1px solid var(--border);
  background: var(--surface-soft);
  padding: 18px;
}

.disease-teaser button,
.text-button {
  border: 0;
  background: transparent;
  color: var(--primary);
  padding: 0;
  font-weight: 700;
}

.library-layout {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 24px;
}

.library-index {
  display: grid;
  gap: 20px;
  align-self: start;
  position: sticky;
  top: 116px;
}

.stacked-section {
  display: grid;
  gap: 12px;
}

.filter-button {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 700;
}

.filter-button.active,
.filter-button:hover,
.filter-button:focus-visible {
  background: var(--primary-soft);
  color: var(--text);
  border-color: rgba(15, 98, 201, 0.2);
  outline: none;
}

.disease-list {
  display: grid;
  gap: 10px;
}

.disease-list-item {
  padding: 15px 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.75);
  text-align: left;
}

.disease-list-item strong,
.source-link strong {
  display: block;
}

.disease-list-item span,
.source-link span {
  color: var(--muted);
}

.disease-list-item.active {
  background: linear-gradient(145deg, rgba(15, 98, 201, 0.12), rgba(15, 140, 149, 0.1));
  border-color: rgba(15, 98, 201, 0.18);
}

.detail-panel {
  display: grid;
  gap: 22px;
}

.detail-hero {
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.detail-section {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface-soft);
  padding: 18px;
}

.detail-section ul,
.timeline-card ul,
.answer-card ul,
.content-snippet ul {
  margin: 12px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.source-link {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.74);
}

.source-link:hover,
.source-link:focus-visible {
  border-color: rgba(15, 98, 201, 0.22);
  outline: none;
}

.timeline-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.timeline-card .meta-line,
.answer-meta,
.template-meta,
.compare-table td:first-child {
  color: var(--muted);
  font-size: 0.94rem;
}

.compare-controls,
.ask-form,
.studio-form {
  display: grid;
  gap: 12px;
}

.select-field,
.textarea-field {
  padding: 14px 16px;
}

.compare-panel-stack {
  display: grid;
  gap: 18px;
}

.compare-summary {
  align-items: center;
}

.table-wrap {
  overflow-x: auto;
  border-radius: 18px;
  border: 1px solid var(--border);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 980px;
  background: rgba(255, 255, 255, 0.88);
}

.compare-table th,
.compare-table td {
  padding: 16px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}

.compare-table th {
  background: rgba(15, 98, 201, 0.05);
  font-family: "Manrope", sans-serif;
}

.ask-layout,
.studio-layout {
  display: grid;
  grid-template-columns: 390px minmax(0, 1fr);
  gap: 24px;
}

.answer-panel,
.studio-output {
  display: grid;
  gap: 16px;
}

.suggestion-pill {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.76);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 999px;
}

.suggestion-pill:hover,
.suggestion-pill:focus-visible {
  outline: none;
  border-color: rgba(15, 98, 201, 0.22);
  background: var(--primary-soft);
}

.primary-button {
  border: 0;
  border-radius: 16px;
  padding: 13px 18px;
  color: #fff;
  background: linear-gradient(145deg, var(--primary), #2f7fe1);
  font-weight: 800;
  letter-spacing: 0.01em;
}

.primary-button:hover,
.primary-button:focus-visible {
  filter: brightness(1.03);
  outline: none;
}

.footer-note {
  margin-top: 24px;
  color: var(--muted);
  text-align: center;
  font-size: 0.95rem;
  padding: 0 18px 20px;
}

@media (max-width: 1180px) {
  .app-shell,
  .hero-layout,
  .content-grid.two-column,
  .library-layout,
  .ask-layout,
  .studio-layout {
    grid-template-columns: 1fr;
  }

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

  .sidebar {
    position: static;
  }

  .library-index {
    position: static;
    top: auto;
  }
}

@media (max-width: 860px) {
  .app-shell {
    padding: 16px;
    gap: 16px;
  }

  .topbar,
  .section-banner,
  .section-heading,
  .detail-hero,
  .compare-summary {
    flex-direction: column;
  }

  .topbar-meta {
    align-items: flex-start;
  }

  .metric-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .global-search {
    font-size: 0.95rem;
  }

  .brand-card,
  .sidebar-panel,
  .panel-card,
  .hero-card,
  .metric-card,
  .topbar {
    border-radius: 22px;
  }

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

  .disease-card-grid,
  .timeline-grid {
    grid-template-columns: 1fr;
  }
}