:root {
  color-scheme:light;
  --bg:#f3f5f7;
  --panel:#eaf0f4;
  --text:#253247;
  --muted:#56677b;
  --line:#d5dfe7;
  --accent:#17685f;
  --active:#e9f4f0
}
* {
  box-sizing:border-box
}
html {
  scroll-padding-top:130px
}
body {
  margin:0;
  background:var(--bg);
  color:var(--text);
  font:16px/1.75 system-ui,-apple-system,'Segoe UI',sans-serif
}
a {
  color:var(--accent);
  text-decoration:none
}
a:hover {
  text-decoration:underline
}
button,input {
  font:inherit
}
button {
  cursor:pointer;
  color:var(--text);
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:6px;
  padding:7px 12px
}
button:focus-visible,a:focus-visible,input:focus-visible {
  outline:3px solid var(--accent);
  outline-offset:3px
}
header {
  height:70px;
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  gap:14px;
  padding:0 28px;
  position:sticky;
  top:0;
  background:var(--bg);
  z-index:5
}
.brand {
  font-weight:650;
  color:var(--text);
  white-space:nowrap;
  font-size:18px
}
.brand-icon {
  background:var(--accent);
  color:var(--bg);
  padding:2px 7px;
  border-radius:5px;
  margin-right:8px
}
#search-open {
  margin-left:auto;
  width:330px;
  text-align:left;
  font-size:14px;
  color:var(--muted)
}
kbd {
  float:right;
  font:12px/24px monospace
}
.areas {
  height:48px;
  display:flex;
  align-items:stretch;
  gap:26px;
  padding:0 28px;
  border-bottom:1px solid var(--line);
  position:sticky;
  top:70px;
  background:var(--bg);
  z-index:4;
  overflow:auto
}
.areas a {
  font-size:14px;
  color:var(--muted);
  padding:10px 0;
  white-space:nowrap
}
.areas .active {
  border-bottom:2px solid var(--accent);
  color:var(--accent);
  font-weight:600
}
.layout {
  display:grid;
  grid-template-columns:280px minmax(0,1fr) 250px;
  width:100%;
  margin:0
}
#sidebar,.toc {
  position:sticky;
  top:118px;
  height:calc(100vh - 118px);
  overflow:auto;
  padding:30px 20px
}
#sidebar {
  border-right:1px solid var(--line);
  background:var(--panel)
}
.eyebrow {
  font-size:12px;
  letter-spacing:.1em;
  font-weight:650;
  color:var(--muted)
}
.topic {
  font-size:14px;
  font-weight:650;
  line-height:1.6;
  margin:18px 10px 18px 0
}
#sidebar nav a {
  display:block;
  font-size:14px;
  line-height:1.5;
  color:var(--muted);
  padding:11px 12px;
  border-radius:5px;
  margin:3px -5px
}
#sidebar a[aria-current] {
  background:var(--active);
  color:var(--accent);
  font-weight:600
}
main {
  min-width:0;
  width:100%;
  padding:36px clamp(24px,2vw,40px) 65px
}
.breadcrumb {
  font-size:13px;
  color:var(--muted);
  margin-bottom:16px
}
h1 {
  font-size:clamp(28px,3vw,38px);
  line-height:1.25;
  letter-spacing:-.025em;
  margin:0 0 24px
}
h2 {
  font-size:25px;
  line-height:1.35;
  margin:42px 0 18px;
  letter-spacing:-.015em
}
h3 {
  font-size:20px;
  line-height:1.45;
  margin:32px 0 16px
}
p {
  margin:16px 0;
  overflow-wrap:anywhere
}
.notice,.missing {
  font-size:13px;
  line-height:1.6;
  border-left:3px solid #b88a3c;
  background:var(--panel);
  padding:12px 16px;
  margin:20px 0;
  color:var(--muted)
}
.anchor {
  font-size:16px;
  margin-left:10px;
  opacity:.4
}
figure {
  width: fit-content;
  max-width: 100%;
  margin: 26px auto;
  background: transparent;
  padding: 0;
  border: 0;
}
figure > a {
  display: block;
  max-width: 100%;
}
figure img {
  border-radius: 4px;
}
img {
  display:block;
  max-width:100%;
  height:auto;
  margin:auto
}
.caption {
  font-size:14px;
  color:var(--muted)
}
.toc {
  font-size:13px;
  line-height:1.6;
  padding-left:10px
}
.toc nav {
  border-left:1px solid var(--line);
  margin-top:16px
}
.toc a {
  display:block;
  color:var(--muted);
  padding:6px 0 6px 15px
}
.toc a.level-3 {
  padding-left:25px
}
.backtop {
  margin-top:24px
}
.prevnext {
  display:flex;
  gap:20px;
  border-top:1px solid var(--line);
  padding-top:25px;
  margin-top:50px
}
.prevnext a {
  flex:1;
  font-size:15px
}
.prevnext small {
  display:block;
  color:var(--muted)
}
.table-scroll {
  overflow:auto
}
table {
  border-collapse:collapse;
  min-width:100%
}
td,th {
  border:1px solid var(--line);
  padding:10px
}
pre {
  overflow:auto;
  background:var(--panel);
  padding:20px
}
dialog {
  background:var(--bg);
  color:var(--text);
  width:min(720px,94vw);
  max-height:80vh;
  border:1px solid var(--line);
  border-radius:10px;
  padding:24px
}
dialog::backdrop {
  background:#08182788
}
dialog form {
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:18px
}
#query {
  width:100%;
  padding:12px;
  border:1px solid var(--line);
  border-radius:6px;
  background:var(--panel);
  color:var(--text)
}
#results a {
  display:block;
  padding:16px 0;
  border-top:1px solid var(--line)
}
#results small {
  display:block;
  color:var(--muted)
}
#results p {
  font-size:14px;
  color:var(--text);
  margin:6px 0
}
.skip {
  position:fixed;
  top:-100px;
  z-index:10;
  background:var(--bg);
  padding:10px
}
.skip:focus {
  top:5px
}
#menu {
  display:none
}
[data-source-node] {
  scroll-margin-top:135px
}
@media(max-width:1150px) {
  .layout {
  grid-template-columns:240px minmax(0,1fr)
}
.toc {
  display:none
}

}
@media(max-width:750px) {
  header {
  padding:0 16px;
  gap:8px;
  height:64px
}
.brand {
  font-size:15px
}
.brand-icon {
  display:none
}
#search-open {
  width:auto;
  font-size:0;
  margin-left:auto
}
#search-open:before {
  content:'Buscar';
  font-size:14px
}
kbd {
  display:none
}
#menu {
  display:block
}
.areas {
  top:64px;
  padding:0 16px
}
.layout {
  display:block
}
#sidebar {
  display:none;
  position:fixed;
  top:112px;
  left:0;
  width:280px;
  height:calc(100vh - 112px);
  z-index:6;
  box-shadow:10px 0 40px #0002
}
#sidebar.open {
  display:block
}
main {
  padding:26px 22px
}
h2 {
  font-size:23px
}
.notice {
  font-size:12px
}
.prevnext {
  flex-direction:column
}

}
@media print {
  header,.areas,#sidebar,.toc,.prevnext,.notice {
  display:none
}
.layout {
  display:block
}
main {
  padding:0
}
figure {
  break-inside:avoid
}

}


.image-placeholder {
  background:var(--panel);
  border:1px dashed var(--line);
  border-radius:6px;
  width:min(100%, 640px);
  padding:16px
}
.image-placeholder img {
  max-height:180px;
  width:100%;
  object-fit:contain
}
.image-placeholder figcaption {
  text-align:center;
  font-size:14px;
  color:var(--muted);
  padding-top:10px
}
.image-placeholder code {
  color:var(--text);
  font-weight:600
}


.manual-image figcaption { text-align: center; font-size: 14px; color: var(--muted); }

/* Lectura técnica: jerarquía y énfasis sin cambiar el contenido. */
article {
  line-height: 1.85;
  font-size: 1rem;
}
article p {
  margin: 0 0 1.15em;
}
article h2 {
  margin-top: 2.3em;
  padding-top: .65em;
  border-top: 1px solid var(--line);
}
article h3 {
  color: var(--accent);
  margin-top: 1.8em;
}
article strong {
  font-weight: 650;
}
article .key-term {
  color: var(--accent);
}
article .definition-term {
  color: var(--text);
  font-weight: 700;
}
article .subsection-label {
  font-weight: 700;
  font-size: 1.075rem;
  color: var(--accent);
  margin-top: 1.75em;
  margin-bottom: .7em;
}
.technical-list {
  list-style: none;
  padding: 0 0 0 1.1rem;
  margin: 1.3rem 0 1.8rem;
  border-left: 2px solid var(--line);
}
.technical-list > li {
  padding: .45rem 0 .45rem .25rem;
}
.technical-list > li + li {
  border-top: 1px solid var(--line);
}
.technical-list p:last-child {
  margin-bottom: 0;
}
article .reading-note {
  background: var(--panel);
  border-left: 3px solid #ad8535;
  padding: 1rem 1.2rem;
  border-radius: 0 6px 6px 0;
  margin: 1.25rem 0;
}
article .worked-example {
  background: var(--active);
  border-left: 3px solid var(--accent);
  padding: .9rem 1.2rem;
  border-radius: 0 6px 6px 0;
  margin: 1.3rem 0;
}
article .calculation {
  font-family: ui-monospace, Consolas, monospace;
  font-size: .95rem;
  font-variant-numeric: tabular-nums;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: var(--panel);
  padding: .5rem 1rem;
  margin: .25rem 0;
  border-radius: 4px;
}
@media (max-width: 750px) {
  article { line-height: 1.8; }
  .technical-list { padding-left: .65rem; }
  article .reading-note, article .worked-example { padding: .85rem; }
}
/* Viñeta de Word: conservar el carácter fuente y dibujar un marcador compatible. */
.source-bullet { font-size: 0; }
.source-bullet::before { content: '•'; font-size: 1rem; color: var(--accent); }
.nav-group {
  margin: 1.5rem 0 .5rem;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 700;
  line-height: 1.5;
}
.nav-group:first-child { margin-top: .5rem; }

/* El contenido ocupa todo el espacio entre las barras, con márgenes moderados. */
main > .breadcrumb,
main > h1,
main > article,
main > .prevnext {
  width: 100%;
  max-width: none;
  margin-left: auto;
  margin-right: auto;
}
.toc {
  background: var(--panel);
  border-left: 1px solid var(--line);
  padding-left: 20px;
  padding-right: 20px;
}
@media (min-width: 1900px) {
  .layout { grid-template-columns: 300px minmax(0, 1fr) 280px; }
  #sidebar, .toc { padding-left: 24px; padding-right: 24px; }
}
@media (max-width: 750px) {
  main { padding: 26px 22px; }
}

/* Navegación permanente: área, tema y secciones del tema activo. */
.topics {
  display: flex;
  gap: 8px;
  height: 54px;
  padding: 6px 28px;
  overflow-x: auto;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 118px;
  z-index: 4;
  scrollbar-width: thin;
}
.topics a {
  flex: 0 0 auto;
  white-space: nowrap;
  padding: 5px 14px;
  border-radius: 5px;
  font-size: 14px;
  color: var(--muted);
}
.topics a[aria-current] {
  color: var(--accent);
  background: var(--active);
  box-shadow: inset 0 -2px var(--accent);
  font-weight: 650;
}
#sidebar, .toc { top: 172px; height: calc(100vh - 172px); }
html { scroll-padding-top: 185px; }
[data-source-node] { scroll-margin-top: 0; }
@media (max-width: 750px) {
  .topics { top: 112px; padding-left: 16px; padding-right: 16px; }
  #sidebar { top: 166px; height: calc(100vh - 166px); }
  html { scroll-padding-top: 179px; }
}
/* Opciones de formato aplicadas explícitamente desde el editor local. */
article .text-align-left { text-align: left; }
article .text-align-center { text-align: center; }
article .text-align-right { text-align: right; }
article .text-align-justify { text-align: justify; }
article figure.image-align-left { margin-left: 0; margin-right: auto; }
article figure.image-align-center { margin-left: auto; margin-right: auto; }
article figure.image-align-right { margin-left: auto; margin-right: 0; }
@media (max-width: 750px) {
  article .text-align-justify { text-align: left; }
}