:root {
  --paper: #e8eaed;
  --ink: #1a1d21;
  --muted: #5f6368;
  --rule: #c4c7cc;
  --navy: #3d4450;
  --navy-deep: #1f2328;
  --remission: #1f6b45;
  --mild: #8a5a12;
  --flare: #9b2c2c;
  --white: #f4f5f7;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: #b8bcc2;
  color: var(--ink);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}

body {
  min-height: 100vh;
}

.page {
  max-width: 1080px;
  margin: 32px auto 64px;
  background: var(--paper);
  border: 1px solid #9aa0a6;
  padding: 36px 40px 28px;
}

.letterhead {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  border-bottom: 2px solid var(--navy);
  padding-bottom: 20px;
  margin-bottom: 24px;
}

.kicker {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy);
}

h1 {
  margin: 0;
  font-family: Fraunces, Georgia, serif;
  font-size: 42px;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--navy-deep);
}

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

.info-btn {
  width: 28px;
  height: 28px;
  border: 1px solid var(--navy);
  background: var(--white);
  color: var(--navy);
  font: 600 15px Fraunces, Georgia, serif;
  font-style: italic;
  line-height: 1;
  cursor: pointer;
  padding: 0;
}

.info-btn:hover,
.info-btn:focus-visible {
  background: var(--navy);
  color: var(--white);
}

.info-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 20;
  background: rgba(31, 35, 40, 0.45);
  padding: 24px 16px;
  overflow: auto;
}

.info-modal.open {
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.info-panel {
  width: min(640px, 100%);
  margin: 48px auto;
  background: var(--paper);
  border: 1px solid #9aa0a6;
  padding: 28px 32px 24px;
  color: var(--ink);
}

.info-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.info-panel h2 {
  margin: 0;
  font-family: Fraunces, Georgia, serif;
  font-size: 26px;
  font-weight: 500;
  color: var(--navy-deep);
}

.info-panel h3 {
  margin: 18px 0 6px;
  font-family: Fraunces, Georgia, serif;
  font-size: 16px;
  font-weight: 500;
  color: var(--navy-deep);
}

.info-panel p,
.info-panel li {
  margin: 0 0 10px;
  line-height: 1.55;
  color: var(--ink);
}

.info-panel ul {
  margin: 0 0 12px;
  padding-left: 1.2rem;
}

.info-panel a {
  color: var(--navy-deep);
}

.info-close {
  border: 1px solid var(--navy);
  background: transparent;
  color: var(--navy);
  font: 600 11px "IBM Plex Sans", sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 10px;
  cursor: pointer;
}

.info-disclaimer {
  margin-top: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  color: var(--muted);
}

body.modal-open {
  overflow: hidden;
}

.deck {
  margin: 10px 0 0;
  max-width: 46rem;
  color: var(--muted);
  line-height: 1.5;
}

.badge {
  margin: 0;
  border: 1px solid var(--navy);
  color: var(--navy);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 8px 10px;
  white-space: nowrap;
}

.banner,
.error,
.status {
  padding: 12px 14px;
  margin-bottom: 16px;
  border: 1px solid var(--rule);
  background: var(--white);
}

.banner {
  color: var(--mild);
}

.error {
  color: var(--flare);
  border-color: #e2b4b4;
}

.status {
  color: var(--navy);
}

.hidden {
  display: none !important;
}

.workbench {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  align-items: stretch;
}

.source-pane h2,
.preview-head h2,
.results-head h2,
.summary-block h3,
.table-wrap h3 {
  margin: 0 0 12px;
  font-family: Fraunces, Georgia, serif;
  font-size: 22px;
  font-weight: 500;
  color: var(--navy-deep);
}

.preset-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 48vh;
  overflow-y: auto;
  padding-right: 4px;
}

.preset {
  text-align: left;
  width: 100%;
  background: transparent;
  border: 1px solid var(--rule);
  padding: 10px 12px;
  cursor: pointer;
  color: inherit;
  font: inherit;
}

.preset:hover,
.preset[aria-selected="true"] {
  border-color: var(--navy);
  background: var(--white);
}

.preset strong {
  display: block;
  font-weight: 600;
}

.preset span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.preset em {
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
}

.upload-block {
  margin: 18px 0;
}

.upload-label {
  display: block;
  border: 1px dashed var(--navy);
  padding: 12px;
  cursor: pointer;
  background: var(--white);
}

.upload-label input {
  display: none;
}

.upload-label span {
  display: block;
  font-weight: 600;
}

.upload-label small {
  color: var(--muted);
}

.file-name {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--muted);
}

#analyze-btn,
.pdf-btn {
  display: inline-block;
  background: var(--navy);
  color: #f4f5f7;
  border: 0;
  padding: 12px 16px;
  font: 600 14px "IBM Plex Sans", sans-serif;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
}

#analyze-btn {
  width: 100%;
}

#analyze-btn:disabled {
  opacity: 0.55;
  cursor: wait;
}

.preview-pane {
  display: flex;
  flex-direction: column;
  min-height: 420px;
}

.preview-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
}

.meta {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

#log-editor {
  flex: 1;
  width: 100%;
  min-height: 360px;
  resize: vertical;
  border: 1px solid var(--rule);
  background: var(--white);
  color: var(--ink);
  font: 14px/1.55 "IBM Plex Sans", sans-serif;
  padding: 14px;
}

.results {
  margin-top: 36px;
  padding-top: 28px;
  border-top: 2px solid var(--navy);
}

.results-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-end;
  margin-bottom: 20px;
}

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

.tier {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 10px;
  border: 1px solid currentColor;
}

.tier.remission { color: var(--remission); }
.tier.mild { color: var(--mild); }
.tier.flare { color: var(--flare); }

.hero-metric {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
}

.metric-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.metric-value {
  margin: 6px 0 0;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 36px;
  font-weight: 500;
}

.metric-value .arrow {
  margin: 0 12px;
  color: var(--muted);
}

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

.delta {
  margin: 0;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 28px;
}

.delta.up { color: var(--flare); }
.delta.down { color: var(--remission); }

.stat-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin: 20px 0 28px;
}

.stat-strip div {
  margin: 0;
  padding-right: 12px;
  border-right: 1px solid var(--rule);
}

.stat-strip div:last-child {
  border-right: 0;
}

.stat-strip dt {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.stat-strip dd {
  margin: 6px 0 0;
  font-size: 16px;
}

.summary-block {
  background: var(--white);
  border: 1px solid var(--rule);
  padding: 20px 22px;
  margin-bottom: 24px;
}

.summary-body {
  color: var(--ink);
  line-height: 1.6;
}

.chart-block {
  margin: 0 0 28px;
}

.chart-block figcaption {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.chart-block img {
  width: 100%;
  height: auto;
  border: 1px solid var(--rule);
  background: var(--white);
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th, td {
  text-align: left;
  padding: 8px 8px 8px 0;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

th {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}

.hbi-cell {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-weight: 500;
}

.hbi-cell.remission { color: var(--remission); }
.hbi-cell.mild { color: var(--mild); }
.hbi-cell.flare { color: var(--flare); }

footer {
  margin-top: 36px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

@media (max-width: 860px) {
  .page {
    margin: 0;
    padding: 24px 18px 32px;
    border: 0;
  }

  .letterhead,
  .workbench,
  .results-head,
  .hero-metric,
  .stat-strip {
    display: block;
  }

  .stat-strip div {
    border: 0;
    padding: 10px 0;
    border-bottom: 1px solid var(--rule);
  }

  .results-actions {
    margin-top: 12px;
  }
}