/* ============================================================
 * Awesome Medical Tools, design tokens and base
 * ============================================================ */

:root {
  /* Paper, ink, hairline, accent. */
  --paper:        #F2EDE3;
  --paper-deep:   #EAE3D5;
  --paper-soft:   #EDE7D9;
  --ink-1:        #1C1714;
  --ink-2:        #4A4138;
  --ink-3:        #7A6E5F;
  --ink-4:        #A99C8A;
  --hairline:     #D4C9B5;
  --hairline-faint: #E2D9C7;
  --accent:       #803A30;
  --accent-soft:  rgba(128, 58, 48, 0.10);
  --accent-deep:  #5E2A22;

  /* Typography. */
  --font-display: 'Newsreader', Georgia, 'Times New Roman', serif;
  --font-body:    'IBM Plex Sans', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono:    'IBM Plex Mono', 'SF Mono', Menlo, monospace;

  /* Rhythm. */
  --col-max:      1280px;
  --col-gap:      72px;
  --sidebar-w:    240px;
  --entry-pad:    36px;

  /* Motion. */
  --ease-out:     cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:  cubic-bezier(0.65, 0.05, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  background: var(--paper);
  color: var(--ink-1);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.9375rem;
  line-height: 1.55;
  font-feature-settings: 'kern' 1, 'liga' 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
  background-image: linear-gradient(to right, var(--ink-3), var(--ink-3));
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 100% 1px;
  transition: background-size 200ms var(--ease-out), color 200ms var(--ease-out);
}
a:hover {
  color: var(--accent);
  background-image: linear-gradient(to right, var(--accent), var(--accent));
}

::selection { background: var(--accent-soft); color: var(--accent-deep); }


/* ============================================================
 * Masthead
 * ============================================================ */

.masthead {
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  margin: 0 auto;
  max-width: var(--col-max);
}

.masthead-rule {
  height: 1px;
  background: var(--ink-1);
  width: 100%;
}
.masthead-rule--top    { height: 1px; opacity: 0.85; }
.masthead-rule--bottom { height: 3px; background: var(--ink-1); position: relative; }
.masthead-rule--bottom::before {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: -4px;
  height: 1px;
  background: var(--ink-1);
}

.masthead-inner {
  padding: 3.25rem 0 2.75rem;
  text-align: center;
}

.dateline {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 1.5rem;
}
.dateline-issue { color: var(--accent); font-weight: 500; }
.dateline-date  { color: var(--ink-3); }

.title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.75rem, 7vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  font-variation-settings: 'opsz' 60;
  color: var(--ink-1);
  margin-bottom: 1.25rem;
}

.tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.0625rem, 1.7vw, 1.25rem);
  line-height: 1.45;
  color: var(--ink-2);
  max-width: 38em;
  margin: 0 auto 1.5rem;
  font-variation-settings: 'opsz' 18;
}

.byline {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.8125rem;
  color: var(--ink-3);
  letter-spacing: 0.01em;
}
.byline-link { color: var(--ink-2); }
.byline-link:hover { color: var(--accent); }

.masthead-counts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin: 0 0 0;
}
.count-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.25rem 0.75rem;
  text-align: center;
  border-right: 1px solid var(--hairline-faint);
}
.count-cell:last-child { border-right: 0; }
.count-num {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.875rem;
  line-height: 1;
  color: var(--ink-1);
  font-variation-settings: 'opsz' 36;
  margin-bottom: 0.375rem;
  font-variant-numeric: oldstyle-nums proportional-nums;
}
.count-lbl {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}


/* ============================================================
 * Layout
 * ============================================================ */

.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  gap: var(--col-gap);
  max-width: var(--col-max);
  margin: 0 auto;
  padding: 3.5rem clamp(1.5rem, 5vw, 4rem) 5rem;
}


/* ============================================================
 * Filters
 * ============================================================ */

.filters {
  position: sticky;
  top: 2rem;
  align-self: start;
  max-height: calc(100vh - 4rem);
  overflow-y: auto;
  padding-right: 0.5rem;
  /* Custom scrollbar to keep aesthetic. */
  scrollbar-width: thin;
  scrollbar-color: var(--ink-4) transparent;
}
.filters::-webkit-scrollbar { width: 4px; }
.filters::-webkit-scrollbar-thumb { background: var(--ink-4); border-radius: 2px; }
.filters::-webkit-scrollbar-track { background: transparent; }

.filter-section { margin-bottom: 1.75rem; }

.filter-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.625rem;
}

.text-input,
.select-input {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--hairline);
  padding: 0.5rem 0 0.625rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--ink-1);
  transition: border-color 180ms var(--ease-out);
}
.text-input::placeholder { color: var(--ink-4); }
.text-input:focus,
.select-input:focus {
  outline: 0;
  border-bottom-color: var(--accent);
}

.select-input {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path d='M1 1l4 4 4-4' stroke='%237A6E5F' stroke-width='1.25' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.25rem center;
  padding-right: 1.25rem;
  cursor: pointer;
}

/* Filter groups (disclosure widgets). */
.filter-group {
  border-top: 1px solid var(--hairline-faint);
  padding: 1.125rem 0 0.25rem;
  margin-bottom: 0;
}
.filter-group + .filter-group { margin-top: 0; }
.filter-group > summary {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  cursor: pointer;
  list-style: none;
  padding-bottom: 0.5rem;
  user-select: none;
}
.filter-group > summary::-webkit-details-marker { display: none; }
.filter-group > summary::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--ink-3);
  margin-left: 0.5rem;
  transition: transform 200ms var(--ease-out);
}
.filter-group[open] > summary::after { content: '–'; }
.filter-group > summary > .filter-label { margin-bottom: 0; }
.filter-summary-meta {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--ink-4);
  letter-spacing: 0.1em;
}

.checkbox-list {
  padding: 0.625rem 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.check-item {
  display: grid;
  grid-template-columns: 14px 1fr auto;
  gap: 0.625rem;
  align-items: center;
  cursor: pointer;
  font-size: 0.8125rem;
  color: var(--ink-2);
  padding: 0.1875rem 0;
  transition: color 150ms var(--ease-out);
}
.check-item:hover { color: var(--ink-1); }
.check-item:hover .check-count { color: var(--ink-2); }

.check-item input[type='checkbox'] {
  appearance: none;
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border: 1px solid var(--ink-4);
  background: transparent;
  position: relative;
  cursor: pointer;
  transition: all 150ms var(--ease-out);
}
.check-item input[type='checkbox']:hover { border-color: var(--ink-2); }
.check-item input[type='checkbox']:checked {
  background: var(--accent);
  border-color: var(--accent);
}
.check-item input[type='checkbox']:checked::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 0px;
  width: 5px;
  height: 9px;
  border-right: 1.5px solid var(--paper);
  border-bottom: 1.5px solid var(--paper);
  transform: rotate(45deg);
}
.check-item input[type='checkbox']:checked ~ .check-name { color: var(--ink-1); font-weight: 500; }
.check-item input[type='checkbox']:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.check-name {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 150ms var(--ease-out);
}
.check-count {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--ink-4);
  font-variant-numeric: tabular-nums;
}

.clear-button {
  display: inline-block;
  margin-top: 1.5rem;
  background: transparent;
  border: 1px solid var(--hairline);
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.625rem 0.875rem;
  cursor: pointer;
  transition: all 180ms var(--ease-out);
}
.clear-button:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.clear-button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }


/* ============================================================
 * Results
 * ============================================================ */

.results { min-width: 0; /* Prevent grid overflow. */ }

.results-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--hairline-faint);
  margin-bottom: 0.5rem;
}

.status-line {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--ink-2);
  font-variation-settings: 'opsz' 16;
}
.status-line strong {
  font-style: normal;
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--ink-1);
  font-variant-numeric: tabular-nums;
}

.active-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}
.active-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border: 1px solid var(--accent-soft);
  padding: 0.3125rem 0.625rem;
  cursor: pointer;
  transition: all 150ms var(--ease-out);
}
.active-pill:hover {
  border-color: var(--accent);
  background: rgba(128, 58, 48, 0.15);
}
.active-pill .pill-x {
  font-size: 0.875rem;
  line-height: 1;
  font-weight: 400;
}


/* Entries list. */
.entries {
  list-style: none;
}

.entry {
  padding: var(--entry-pad) 0;
  border-bottom: 1px solid var(--hairline-faint);
  position: relative;
  content-visibility: auto;
  contain-intrinsic-size: auto 320px;
}
.entry:last-child { border-bottom: 0; }

.entries.initial-load .entry {
  opacity: 0;
  transform: translateY(8px);
  animation: entry-in 600ms var(--ease-out) forwards;
}

@keyframes entry-in {
  to { opacity: 1; transform: translateY(0); }
}

.entry-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1.5rem;
  margin-bottom: 0.625rem;
}

.entry-repo {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  line-height: 1.4;
  word-break: break-all;
}
.entry-repo a {
  color: var(--ink-1);
  background-image: none;
}
.entry-repo a:hover {
  color: var(--accent);
  background-image: none;
}
.entry-repo .slash { color: var(--ink-4); margin: 0 -0.05em; }

.entry-meta-right {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.entry-stars {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.entry-stars .star-mark { color: var(--accent); margin-right: 0.25rem; }

.entry-lang {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.entry-desc {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.125rem;
  line-height: 1.45;
  color: var(--ink-1);
  font-variation-settings: 'opsz' 18;
  margin-bottom: 1rem;
  max-width: 48em;
}

.entry-author {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 0.5rem;
}
.entry-author a {
  color: var(--ink-2);
  background: none;
}
.entry-author a:hover { color: var(--accent); }

.entry-byline-fact {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.9375rem;
  color: var(--ink-2);
  margin-bottom: 0.875rem;
  font-variation-settings: 'opsz' 16;
}
.entry-byline-fact .sep {
  color: var(--ink-4);
  margin: 0 0.375rem;
  font-style: normal;
}

.entry-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4375rem;
  margin-bottom: 0.875rem;
}

.chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 400;
  color: var(--ink-2);
  background: transparent;
  border: 1px solid var(--hairline);
  padding: 0.3125rem 0.5625rem;
  cursor: pointer;
  transition: all 150ms var(--ease-out);
  white-space: nowrap;
}
.chip:hover {
  border-color: var(--ink-2);
  color: var(--ink-1);
}
.chip.chip-active {
  background: var(--ink-1);
  border-color: var(--ink-1);
  color: var(--paper);
}
.chip.chip-active:hover {
  background: var(--accent);
  border-color: var(--accent);
}
.chip[data-filter-type='specialties'] {
  /* Slight visual distinction for primary axis. */
  color: var(--ink-1);
  font-weight: 500;
}

.entry-foot {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-top: 0.25rem;
}

.entry-date {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}


/* Provenance disclosure. */
.entry-provenance {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--hairline-faint);
}
.entry-provenance > summary {
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 150ms var(--ease-out);
}
.entry-provenance > summary::-webkit-details-marker { display: none; }
.entry-provenance > summary::before {
  content: '▸';
  font-size: 0.625rem;
  color: var(--ink-4);
  transition: transform 200ms var(--ease-out);
  display: inline-block;
}
.entry-provenance[open] > summary::before {
  transform: rotate(90deg);
}
.entry-provenance > summary:hover { color: var(--ink-1); }

.provenance-content {
  padding: 1rem 0 0.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 50em;
}
.provenance-section {
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
}
.provenance-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin-bottom: 0.5rem;
}
.provenance-content blockquote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--ink-2);
  font-variation-settings: 'opsz' 16;
}
.provenance-content blockquote::before { content: '\201C'; margin-right: 0.125rem; color: var(--ink-4); }
.provenance-content blockquote::after  { content: '\201D'; margin-left: 0.125rem; color: var(--ink-4); }


/* Empty state. */
.empty-state {
  padding: 4rem 1rem;
  text-align: center;
  border-top: 1px solid var(--hairline-faint);
  border-bottom: 1px solid var(--hairline-faint);
  margin-top: 1.5rem;
}
.empty-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.375rem;
  color: var(--ink-2);
  margin-bottom: 0.5rem;
  font-variation-settings: 'opsz' 24;
}
.empty-sub {
  color: var(--ink-3);
  font-size: 0.9375rem;
  margin-bottom: 1.5rem;
}
.empty-button {
  background: var(--ink-1);
  color: var(--paper);
  border: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.75rem 1.25rem;
  cursor: pointer;
  transition: background 180ms var(--ease-out);
}
.empty-button:hover { background: var(--accent); }
.empty-button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.local-warning {
  padding: 2.5rem 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin-top: 1.5rem;
  text-align: center;
  color: var(--ink-2);
}
.local-warning code,
.local-warning pre {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}
.local-warning pre {
  background: var(--paper-deep);
  padding: 0.875rem 1.25rem;
  margin: 1rem auto;
  display: inline-block;
  text-align: left;
  color: var(--ink-1);
}


/* ============================================================
 * Colophon (footer)
 * ============================================================ */

.colophon {
  margin-top: 4rem;
  padding-bottom: 4rem;
}
.colophon .masthead-rule {
  max-width: var(--col-max);
  margin: 0 auto;
}
.colophon-inner {
  max-width: var(--col-max);
  margin: 0 auto;
  padding: 2.5rem clamp(1.5rem, 5vw, 4rem) 0;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--ink-3);
  line-height: 1.65;
  max-width: 60ch;
  text-align: center;
}
.colophon-inner p { margin-bottom: 0.875rem; }
.colophon-fine { font-size: 0.75rem; color: var(--ink-4); }
.colophon-badge { margin-top: 1.5rem; }
.colophon-badge img { height: 20px; opacity: 0.85; transition: opacity 150ms var(--ease-out); }
.colophon-badge a:hover img { opacity: 1; }
.colophon-badge a { background: none; }


/* ============================================================
 * Responsive
 * ============================================================ */

@media (max-width: 960px) {
  .layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding-top: 2.5rem;
    padding-bottom: 4rem;
  }
  .filters {
    position: static;
    max-height: none;
    overflow-y: visible;
    padding-right: 0;
    border-bottom: 1px solid var(--hairline);
    padding-bottom: 1rem;
  }
  .masthead-counts { grid-template-columns: repeat(2, 1fr); }
  .count-cell:nth-child(2) { border-right: 0; }
  .count-cell:nth-child(1),
  .count-cell:nth-child(2) { border-bottom: 1px solid var(--hairline-faint); }
}

@media (max-width: 600px) {
  .masthead-inner { padding: 2rem 0 1.75rem; }
  .title { font-size: 2.25rem; }
  .tagline { font-size: 1rem; }
  .entry { padding: 1.75rem 0; }
  .entry-head { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .entry-desc { font-size: 1.0625rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .entries.initial-load .entry { opacity: 1; transform: none; }
}