:root {
  --bg: #f7f3ec;
  --surface: #fffaf3;
  --surface-strong: #ffffff;
  --ink: #25211d;
  --muted: #6d6258;
  --line: rgba(55, 45, 35, 0.14);
  --field: #fffdf8;
  --field-focus: rgba(0, 137, 123, 0.2);
  --teal: #00897b;
  --teal-dark: #00695f;
  --coral: #d96b54;
  --gold: #f4b24d;
  --blue: #2d6cdf;
  --shadow: 0 18px 60px rgba(71, 50, 32, 0.14);
  --radius: 8px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #171a1f;
  --surface: #20242b;
  --surface-strong: #272c34;
  --ink: #f7f0e8;
  --muted: #c9bcb0;
  --line: rgba(255, 255, 255, 0.14);
  --field: #15191f;
  --field-focus: rgba(51, 204, 188, 0.28);
  --teal: #38c5b6;
  --teal-dark: #67d8cd;
  --coral: #ff927f;
  --gold: #ffd166;
  --blue: #85a9ff;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.32);
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="system"] {
    --bg: #171a1f;
    --surface: #20242b;
    --surface-strong: #272c34;
    --ink: #f7f0e8;
    --muted: #c9bcb0;
    --line: rgba(255, 255, 255, 0.14);
    --field: #15191f;
    --field-focus: rgba(51, 204, 188, 0.28);
    --teal: #38c5b6;
    --teal-dark: #67d8cd;
    --coral: #ff927f;
    --gold: #ffd166;
    --blue: #85a9ff;
    --shadow: 0 18px 60px rgba(0, 0, 0, 0.32);
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
}

body {
  background:
    linear-gradient(180deg, rgba(255, 250, 243, 0.7), rgba(247, 243, 236, 0)),
    var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  letter-spacing: 0;
  line-height: 1.5;
  margin: 0;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.topbar {
  align-items: center;
  background: color-mix(in srgb, var(--surface-strong) 90%, transparent);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 16px;
  height: 64px;
  padding: 0 max(20px, calc((100vw - 1220px) / 2));
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand {
  align-items: center;
  color: var(--ink);
  display: inline-flex;
  font-size: 15px;
  font-weight: 750;
  gap: 10px;
  min-width: 0;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: var(--teal);
  border-radius: 50%;
  display: inline-flex;
  height: 30px;
  justify-content: center;
  width: 30px;
}

.brand-mark span {
  background: var(--surface-strong);
  border-radius: 2px;
  display: block;
  height: 14px;
  position: relative;
  width: 14px;
}

.brand-mark span::before,
.brand-mark span::after {
  background: var(--teal);
  content: "";
  left: 6px;
  position: absolute;
  top: 2px;
}

.brand-mark span::before {
  height: 10px;
  width: 2px;
}

.brand-mark span::after {
  height: 2px;
  top: 6px;
  width: 10px;
}

.top-nav {
  align-items: center;
  display: flex;
  gap: 4px;
}

.nav-link {
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
  padding: 8px 11px;
  text-decoration: none;
}

.nav-link:hover,
.nav-link.selected {
  background: color-mix(in srgb, var(--teal) 12%, transparent);
  color: var(--teal-dark);
}

.theme-switcher {
  align-items: center;
  background: color-mix(in srgb, var(--field) 80%, transparent);
  border: 1px solid var(--line);
  border-radius: 999px;
  display: flex;
  gap: 2px;
  margin-left: auto;
  padding: 3px;
}

.theme-switcher button {
  background: transparent;
  border: 0;
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  min-height: 28px;
  padding: 0 10px;
}

.theme-switcher button.selected {
  background: var(--ink);
  color: var(--surface);
}

.page-shell {
  display: grid;
  gap: 28px;
  margin: 0 auto;
  max-width: 1220px;
  padding: 28px 20px 56px;
}

.hero-workspace {
  align-items: stretch;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 0.95fr) minmax(380px, 1.05fr);
}

.guide-panel,
.prep-form,
.results-shell {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.guide-panel {
  display: flex;
  flex-direction: column;
  min-height: 720px;
  overflow: hidden;
}

.guide-visual {
  aspect-ratio: 1.95 / 1;
  min-height: 270px;
  overflow: hidden;
  position: relative;
}

.guide-visual img {
  height: 100%;
  object-fit: cover;
  object-position: 72% center;
  width: 100%;
}

.guide-visual::after {
  background: linear-gradient(180deg, transparent 38%, rgba(0, 0, 0, 0.44));
  content: "";
  inset: 0;
  position: absolute;
}

.guide-bubble {
  align-items: center;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.46);
  border-radius: 999px;
  bottom: 18px;
  color: #183032;
  display: inline-flex;
  font-size: 14px;
  font-weight: 800;
  gap: 8px;
  left: 18px;
  padding: 9px 12px;
  position: absolute;
  z-index: 1;
}

.pulse-dot {
  background: var(--teal);
  border-radius: 50%;
  box-shadow: 0 0 0 6px rgba(0, 137, 123, 0.18);
  height: 9px;
  width: 9px;
}

.guide-copy {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: flex-start;
  padding: 28px 34px 34px;
}

.eyebrow {
  color: var(--coral);
  font-size: 13px;
  font-weight: 850;
  margin: 0 0 8px;
  text-transform: uppercase;
}

.guide-copy .eyebrow {
  font-size: 16px;
  line-height: 1.25;
  margin-bottom: 14px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(40px, 5vw, 72px);
  font-weight: 850;
  line-height: 1.02;
  margin-bottom: 18px;
}

h2 {
  font-size: 28px;
  line-height: 1.15;
  margin-bottom: 10px;
}

h3 {
  font-size: 20px;
  line-height: 1.2;
  margin-bottom: 0;
}

.guide-copy p:not(.eyebrow),
.results-heading p {
  color: var(--muted);
  font-size: 18px;
  margin-bottom: 0;
}

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.trust-strip span {
  background: color-mix(in srgb, var(--teal) 12%, var(--surface-strong));
  border: 1px solid color-mix(in srgb, var(--teal) 24%, var(--line));
  border-radius: 999px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 800;
  padding: 7px 10px;
}

.prep-form {
  padding: 28px;
}

.form-heading {
  align-items: start;
  display: flex;
  gap: 14px;
  justify-content: space-between;
  margin-bottom: 20px;
}

.field-label {
  color: var(--ink);
  display: block;
  font-size: 14px;
  font-weight: 800;
  margin: 18px 0 8px;
}

input,
textarea {
  background: var(--field);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  min-width: 0;
  outline: 0;
  padding: 14px 15px;
  width: 100%;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 4px var(--field-focus);
}

::placeholder {
  color: color-mix(in srgb, var(--muted) 78%, transparent);
  opacity: 1;
}

.medication-card {
  background: color-mix(in srgb, var(--gold) 10%, var(--surface-strong));
  border: 1px solid color-mix(in srgb, var(--gold) 40%, var(--line));
  border-radius: var(--radius);
  margin-top: 22px;
  padding: 18px;
}

.medication-row {
  align-items: end;
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  margin-top: 14px;
}

.combo-field {
  position: relative;
}

.suggestions {
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  left: 0;
  max-height: 260px;
  overflow: auto;
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  z-index: 12;
}

.suggestions button {
  background: transparent;
  border: 0;
  color: var(--ink);
  display: block;
  padding: 10px 12px;
  text-align: left;
  width: 100%;
}

.suggestions button:hover,
.suggestions button:focus {
  background: color-mix(in srgb, var(--teal) 12%, transparent);
}

.primary-action,
.secondary-action,
.ghost-action,
.demo-action {
  align-items: center;
  border-radius: var(--radius);
  display: inline-flex;
  font-weight: 850;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
}

.primary-action {
  background: var(--teal);
  border: 1px solid var(--teal);
  color: #ffffff;
  min-width: 220px;
}

.primary-action:hover {
  background: var(--teal-dark);
}

.secondary-action {
  background: var(--ink);
  border: 1px solid var(--ink);
  color: var(--surface);
  min-width: 76px;
}

.demo-action {
  background: color-mix(in srgb, var(--blue) 12%, var(--surface-strong));
  border: 1px solid color-mix(in srgb, var(--blue) 34%, var(--line));
  color: var(--blue);
  flex: 0 0 auto;
  min-height: 42px;
  padding: 0 14px;
}

.demo-action:hover {
  border-color: color-mix(in srgb, var(--blue) 58%, var(--line));
  transform: translateY(-1px);
}

.ghost-action {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.form-note {
  color: var(--muted);
  font-size: 13px;
  margin: 16px 0 0;
}

.button-spinner {
  border: 2px solid rgba(255, 255, 255, 0.45);
  border-top-color: #ffffff;
  border-radius: 50%;
  display: none;
  height: 18px;
  margin-left: 10px;
  width: 18px;
}

.primary-action.loading .button-spinner {
  animation: spin 0.85s linear infinite;
  display: inline-block;
}

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

.results-shell {
  padding: 28px;
}

.about-page {
  max-width: 1060px;
}

.about-hero {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--teal) 14%, transparent), transparent 50%),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 42px;
}

.about-hero h1 {
  max-width: 760px;
}

.about-hero p:not(.eyebrow) {
  color: var(--muted);
  font-size: 19px;
  max-width: 760px;
}

.video-link {
  color: var(--muted);
  display: inline-flex;
  font-size: 14px;
  font-weight: 750;
  margin-top: 16px;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.video-link:hover {
  color: var(--teal-dark);
}

.article-link {
  align-items: center;
  background: var(--teal-dark);
  border: 1px solid var(--teal-dark);
  border-radius: var(--radius);
  color: #ffffff;
  display: inline-flex;
  font-weight: 850;
  margin-top: 22px;
  min-height: 48px;
  padding: 0 18px;
  text-decoration: none;
}

.article-link:hover {
  background: var(--ink);
  border-color: var(--ink);
}

.about-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.about-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}

.about-card h2 {
  font-size: 24px;
}

.about-card p:not(.eyebrow) {
  color: var(--muted);
  margin-bottom: 0;
}

.source-card {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--gold) 16%, transparent), transparent 48%),
    var(--surface);
}

.github-link {
  align-items: center;
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  color: var(--surface);
  display: inline-flex;
  font-weight: 850;
  margin-top: 18px;
  min-height: 46px;
  padding: 0 16px;
  text-decoration: none;
}

.github-link:hover {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
}

.field-note-quote {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--teal) 12%, transparent), transparent 46%),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}

.field-note-quote blockquote {
  color: var(--ink);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  line-height: 1.16;
  margin: 0;
  max-width: 940px;
}

.quote-attribution {
  color: var(--muted);
  font-size: 15px;
  font-weight: 850;
  margin: 18px 0 0;
}

.acknowledgements {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--blue) 10%, transparent), transparent 48%),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: grid;
  gap: 22px;
  padding: 28px;
}

.acknowledgements h2 {
  max-width: 760px;
}

.acknowledgements p:not(.eyebrow) {
  color: var(--muted);
  font-size: 17px;
  margin-bottom: 0;
  max-width: 820px;
}

.sponsor-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sponsor-links a {
  align-items: center;
  background: color-mix(in srgb, var(--field) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  display: inline-flex;
  font-size: 14px;
  font-weight: 850;
  min-height: 38px;
  padding: 0 13px;
  text-decoration: none;
}

.sponsor-links a:hover {
  border-color: color-mix(in srgb, var(--teal) 52%, var(--line));
  color: var(--teal-dark);
  transform: translateY(-1px);
}

.about-video-note {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  margin: 0;
}

.about-video-note a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.about-video-note a:hover {
  color: var(--teal-dark);
}

.results-heading {
  display: grid;
  gap: 4px;
  margin-bottom: 18px;
}

.result-tabs {
  background: var(--field);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  gap: 4px;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 16px;
  padding: 4px;
}

.result-tabs button {
  background: transparent;
  border: 0;
  border-radius: 6px;
  color: var(--muted);
  font-weight: 850;
  min-height: 42px;
}

.result-tabs button.selected {
  background: var(--surface-strong);
  color: var(--ink);
  box-shadow: 0 4px 14px rgba(41, 35, 29, 0.08);
}

.report-panel {
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: none;
  grid-template-columns: 42px minmax(0, 1fr);
  min-height: 310px;
  padding: 18px;
}

.report-panel.selected {
  display: grid;
}

.export-card {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--teal) 10%, transparent), transparent 48%),
    var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-top: 18px;
  padding: 18px;
}

.export-heading {
  align-items: start;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  margin-bottom: 14px;
}

.export-heading h3 {
  margin: 0;
}

.export-heading p:last-child {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  margin: 4px 0 0;
  max-width: 300px;
  text-align: right;
}

.export-actions {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.export-action {
  align-items: center;
  background: color-mix(in srgb, var(--field) 92%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  display: grid;
  font-weight: 850;
  gap: 8px;
  grid-template-columns: 34px minmax(0, 1fr);
  min-height: 58px;
  padding: 10px 12px;
  text-align: left;
}

.export-action:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--teal) 52%, var(--line));
  transform: translateY(-1px);
}

.export-action:disabled {
  cursor: not-allowed;
  opacity: 0.46;
}

.primary-export {
  background: color-mix(in srgb, var(--teal) 14%, var(--surface-strong));
  border-color: color-mix(in srgb, var(--teal) 38%, var(--line));
}

.export-icon {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--teal-dark);
  display: inline-flex;
  font-size: 11px;
  font-weight: 950;
  height: 34px;
  justify-content: center;
  letter-spacing: 0;
  width: 34px;
}

.export-note {
  color: var(--muted);
  font-size: 13px;
  margin: 14px 0 0;
}

.panel-icon {
  align-items: center;
  background: color-mix(in srgb, var(--blue) 14%, var(--surface-strong));
  border: 1px solid color-mix(in srgb, var(--blue) 28%, var(--line));
  border-radius: 50%;
  color: var(--blue);
  display: flex;
  font-weight: 900;
  height: 30px;
  justify-content: center;
  margin-top: 2px;
  width: 30px;
}

.markdown-body {
  color: var(--ink);
  min-width: 0;
  white-space: normal;
}

.markdown-body p,
.markdown-body li {
  margin-bottom: 10px;
}

.markdown-body ul,
.markdown-body ol {
  margin: 0;
  padding-left: 20px;
}

.markdown-body strong {
  font-weight: 850;
}

.markdown-body .empty {
  color: var(--muted);
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--field-focus);
  outline-offset: 3px;
}

@media (max-width: 980px) {
  .hero-workspace {
    grid-template-columns: 1fr;
  }

  .guide-panel {
    min-height: auto;
  }

  .guide-copy {
    padding: 28px;
  }

  .medication-row {
    grid-template-columns: 1fr;
  }

  .secondary-action {
    width: 100%;
  }

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

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

@media (max-width: 680px) {
  .topbar {
    gap: 10px;
    height: auto;
    min-height: 60px;
    padding: 10px 14px;
  }

  .brand span:last-child {
    max-width: 118px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .top-nav {
    gap: 2px;
  }

  .nav-link {
    font-size: 13px;
    padding: 7px 8px;
  }

  .theme-switcher button {
    font-size: 12px;
    padding: 0 7px;
  }

  .page-shell {
    padding: 16px 12px 36px;
  }

  .guide-copy,
  .about-hero,
  .about-card,
  .field-note-quote,
  .acknowledgements,
  .prep-form,
  .results-shell {
    padding: 18px;
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 24px;
  }

  .guide-copy p:not(.eyebrow),
  .results-heading p {
    font-size: 16px;
  }

  .primary-action,
  .ghost-action,
  .demo-action {
    width: 100%;
  }

  .form-heading {
    display: grid;
  }

  .result-tabs {
    grid-template-columns: 1fr;
  }

  .report-panel,
  .report-panel.selected {
    grid-template-columns: 1fr;
  }

  .export-heading {
    display: grid;
  }

  .export-heading p:last-child {
    max-width: none;
    text-align: left;
  }

  .export-actions {
    grid-template-columns: 1fr;
  }
}