/* =========================================================
   TOKENS
   ========================================================= */
:root{
  --navy-950: #0B1526;
  --navy-900: #10203D;
  --navy-800: #16294B;
  --navy-700: #223862;
  --red-600:  #C41230;
  --red-700:  #A20E28;
  --paper:    #FAF8F4;
  --paper-raised: #FFFFFF;
  --ink:      #1B2130;
  --ink-soft: #4B5266;
  --ink-faint:#8A90A0;
  --line:     #E4E0D6;
  --line-strong: #D3CFC2;

  --font-display: "Lora", Georgia, "Times New Roman", serif;
  --font-body: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;

  --radius-s: 6px;
  --radius-m: 10px;
  --shadow-card: 0 1px 2px rgba(16,32,61,0.06), 0 8px 24px -12px rgba(16,32,61,0.18);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a{ color: inherit; }
:focus-visible{ outline: 2.5px solid var(--red-600); outline-offset: 3px; }

h1,h2,h3{ font-family: var(--font-display); margin: 0; color: var(--navy-900); }

/* =========================================================
   HEADER
   ========================================================= */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250,248,244,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner{
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand{
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: var(--navy-900);
}
.brand__mark{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.02em;
  background: var(--navy-900);
  color: var(--paper);
  padding: 3px 9px;
  border-radius: 4px;
}
.brand__name{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.brand__name em{ font-style: normal; color: var(--red-600); }
.brand__logo{
  display: block;
  width: min(220px, 42vw);
  height: auto;
  max-height: 42px;
  object-fit: contain;
}
.site-header .brand__logo{
  filter: brightness(0) saturate(100%) invert(15%) sepia(18%) saturate(1534%) hue-rotate(180deg) brightness(91%) contrast(94%);
}

.site-header__actions{ display: flex; align-items: center; gap: 10px; }

.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.86rem;
  text-decoration: none;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-1px); }
.btn--primary{
  background: var(--red-600);
  color: #fff;
  box-shadow: 0 6px 16px -6px rgba(196,18,48,0.55);
}
.btn--primary:hover{ background: var(--red-700); }
.btn--ghost{
  background: transparent;
  color: var(--navy-900);
  border-color: var(--line-strong);
}
.btn--ghost:hover{ background: var(--paper-raised); border-color: var(--navy-700); }
.btn--lg{ padding: 13px 24px; font-size: 0.95rem; }
.btn__icon{ width: 15px; height: 15px; flex: none; }

.nav-toggle{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-s);
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  cursor: pointer;
}
.nav-toggle span{
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--navy-900);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle.is-open span:nth-child(1){ transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2){ opacity: 0; }
.nav-toggle.is-open span:nth-child(3){ transform: translateY(-6px) rotate(-45deg); }

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position: relative;
  background: linear-gradient(180deg, var(--navy-950) 0%, var(--navy-900) 70%, var(--navy-800) 100%);
  color: #EDEFF5;
  padding: 0 32px 56px;
  overflow: hidden;
}
.hero__ribbon{
  max-width: 1280px;
  margin: 0 auto;
  padding: 10px 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: #F4C9D1;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.hero__inner{
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 44px;
  max-width: 780px;
}
.hero__eyebrow{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: #9FB0D6;
  margin: 0 0 14px;
}
.hero__title{
  font-size: clamp(2rem, 4.4vw, 3.1rem);
  font-weight: 600;
  line-height: 1.14;
  color: #FFFFFF;
  letter-spacing: -0.01em;
}
.hero__lede{
  margin: 22px 0 0;
  font-size: 1.05rem;
  line-height: 1.7;
  color: #C4CBDE;
  max-width: 62ch;
}
.hero__meta{
  margin: 36px 0 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 1px;
  background: rgba(255,255,255,0.12);
  border-radius: var(--radius-m);
  overflow: hidden;
}
.hero__meta-item{
  background: rgba(255,255,255,0.04);
  padding: 16px 18px;
}
.hero__meta-item dt{
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #8998BE;
  margin: 0 0 6px;
}
.hero__meta-item dd{
  margin: 0;
  font-size: 0.9rem;
  color: #EDEFF5;
  font-weight: 500;
  overflow-wrap: anywhere;
}

/* =========================================================
   LAYOUT: TOC + CONTENT
   ========================================================= */
.layout{
  max-width: 1280px;
  margin: 0 auto;
  padding: 56px 32px 96px;
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr) 230px;
  gap: 56px;
  align-items: start;
}

.toc{
  position: sticky;
  top: 88px;
  align-self: start;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
  padding-right: 4px;
}
.toc__label{
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 14px;
}
.toc__list{
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  border-left: 1px solid var(--line-strong);
}
.toc__list li a{
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  font-size: 0.86rem;
  color: var(--ink-soft);
  padding: 7px 0 7px 16px;
  border-left: 2px solid transparent;
  margin-left: -1px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.toc__num{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-faint);
  min-width: 1.4em;
}
.toc__list li a:hover{ color: var(--navy-900); }
.toc__list li a.is-active{
  color: var(--red-600);
  border-left-color: var(--red-600);
  font-weight: 600;
}
.toc__list li a.is-active .toc__num{ color: var(--red-600); }

.toc__download{
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--navy-900);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-s);
  padding: 12px 14px;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}
.toc__download:hover{ border-color: var(--red-600); background: var(--paper-raised); }

.mobile-menu,
.mobile-menu-backdrop{ display: none; }

/* =========================================================
   CONTENT / ARTICLES
   ========================================================= */
.content{ min-width: 0; }

.policy-links{
  position: sticky;
  top: 88px;
  min-width: 0;
  padding: 22px 18px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-card);
}
.policy-links__brand{
  display: flex;
  justify-content: center;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.policy-links__brand img{
  display: block;
  width: min(100%, 150px);
  height: auto;
  object-fit: contain;
  filter: brightness(0) saturate(100%) invert(15%) sepia(18%) saturate(1534%) hue-rotate(180deg) brightness(91%) contrast(94%);
}
.policy-links__label{
  margin: 18px 0 12px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.policy-links__list{
  list-style: none;
  margin: 0;
  padding: 0;
}
.policy-links__list li + li{ margin-top: 10px; }
.policy-links__list a{
  display: block;
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.4;
  overflow-wrap: anywhere;
  text-decoration: none;
  transition: color 0.15s ease;
}
.policy-links__list a::before{
  content: "›";
  display: inline-block;
  margin-right: 7px;
  color: var(--red-600);
  font-weight: 700;
}
.policy-links__list a:hover{ color: var(--red-600); }

.article{
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 96px;
}
#preambulo.article{ border-bottom: 1px solid var(--line); }
.article:last-of-type{ border-bottom: none; }

.article__eyebrow{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red-600);
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.article__num{ font-weight: 600; }
.article__title{
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 18px;
  color: var(--navy-900);
}
.article p{
  margin: 0 0 16px;
  color: var(--ink);
  max-width: 74ch;
}
.article p:last-child{ margin-bottom: 0; }
.article strong{ color: var(--navy-900); }

.inline-link{
  color: var(--red-600);
  text-decoration: underline;
  text-decoration-color: rgba(196,18,48,0.35);
  text-underline-offset: 3px;
}
.inline-link:hover{ text-decoration-color: var(--red-600); }

/* Marco legal */
.law-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.law-list li{
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--navy-900);
  padding: 12px 16px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-left: 3px solid var(--navy-700);
  border-radius: var(--radius-s);
}

/* Glosario */
.glossary{ margin: 0; display: grid; gap: 0; }
.glossary__item{
  padding: 18px 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 200px minmax(0,1fr);
  gap: 24px;
}
.glossary__item:first-child{ border-top: none; }
.glossary__item dt{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--navy-900);
}
.glossary__item dd{
  margin: 0;
  color: var(--ink-soft);
  max-width: 62ch;
}

/* Principios / listas alfabéticas */
.principles{
  margin: 0 0 8px;
  padding-left: 0;
  list-style: none;
  counter-reset: item;
  display: grid;
  gap: 14px;
}
.principles li{
  position: relative;
  padding: 16px 18px 16px 52px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  counter-increment: item;
  max-width: 74ch;
}
.principles li::before{
  content: counter(item, lower-alpha) ")";
  position: absolute;
  left: 16px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--red-600);
  font-weight: 600;
}

/* Derechos / deberes / listas con marca */
.rights-list, .duty-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.rights-list li, .duty-list li{
  position: relative;
  padding-left: 26px;
  color: var(--ink);
  max-width: 74ch;
}
.rights-list li::before, .duty-list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--red-600);
}

/* Procedimientos (sección XVII) */
.procedure{
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.procedure:first-of-type{ margin-top: 22px; }
.procedure__title{
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy-800);
  margin: 0 0 12px;
}
.steps{
  margin: 14px 0 0;
  padding-left: 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 14px;
}
.steps li{
  position: relative;
  width: 100%;
  min-width: 0;
  padding: 14px 16px 14px 46px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  counter-increment: step;
  max-width: 74ch;
}
.steps li::before{
  content: counter(step);
  position: absolute;
  left: 14px;
  top: 14px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--navy-900);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

/* Cierre */
.closing{
  padding: 40px 28px;
  margin-top: 20px;
  border-radius: var(--radius-m);
  background: var(--navy-900);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.closing__vigencia{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #C4CBDE;
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{ background: var(--navy-950); color: #C4CBDE; }
.site-footer__inner{
  max-width: 1280px;
  margin: 0 auto;
  padding: 44px 32px 32px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.brand--footer{ display: flex; align-items: baseline; gap: 10px; margin: 0 0 10px; }
.brand--footer .brand__logo{ width: min(230px, 100%); max-height: 44px; }
.brand--footer .brand__name{ color: #8998BE; }
.site-footer__inner p{ margin: 4px 0; font-size: 0.86rem; }
.site-footer__contact{ text-align: right; }
.site-footer__bar{ height: 6px; background: linear-gradient(90deg, var(--red-600), var(--red-700)); }

/* =========================================================
   TO TOP
   ========================================================= */
.to-top{
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  color: var(--navy-900);
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: var(--shadow-card);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 40;
}
.to-top.is-visible{ opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover{ border-color: var(--red-600); color: var(--red-600); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 960px){
  .layout{ grid-template-columns: 1fr; padding-top: 36px; }
  .toc{
    position: static;
    max-height: none;
    background: var(--paper-raised);
    border: 1px solid var(--line);
    border-radius: var(--radius-m);
    padding: 18px 20px 20px;
    margin-bottom: 8px;
    display: none;
  }
  .nav-toggle{ display: flex; }
  .policy-links{
    display: none;
  }
  .site-header__actions .btn--ghost{ display: none; }
  .hero__meta{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .glossary__item{ grid-template-columns: 1fr; gap: 6px; }
}

@media (max-width: 960px){
  body.menu-open{ overflow: hidden; }
  .mobile-menu-backdrop{
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(11, 20, 35, 0.48);
    z-index: 90;
  }
  .mobile-menu-backdrop[hidden]{ display: none; }
  .mobile-menu{
    display: block;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(88vw, 380px);
    padding: 24px 22px 28px;
    overflow-y: auto;
    background: var(--paper);
    box-shadow: -18px 0 45px rgba(11, 20, 35, 0.2);
    transform: translateX(105%);
    transition: transform 0.24s ease;
    z-index: 100;
  }
  .mobile-menu.is-open{ transform: translateX(0); }
  .mobile-menu__header{
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
  }
  .mobile-menu__title,
  .mobile-menu__label{
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--ink-faint);
  }
  .mobile-menu__close{
    width: 36px;
    height: 36px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-s);
    background: var(--paper-raised);
    color: var(--navy-900);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
  }
  .mobile-menu__label{ margin: 24px 0 10px; }
  .mobile-menu__list{
    display: grid;
    gap: 2px;
    list-style: none;
    margin: 0;
    padding: 0;
  }
  .mobile-menu__list a{
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 9px 10px;
    border-radius: var(--radius-s);
    color: var(--ink-soft);
    font-size: 0.88rem;
    line-height: 1.35;
    text-decoration: none;
  }
  .mobile-menu__list a:hover,
  .mobile-menu__list a:focus-visible{
    background: var(--paper-raised);
    color: var(--red-600);
    outline: none;
  }
  .mobile-menu__list a span{
    min-width: 2.2em;
    color: var(--ink-faint);
    font-family: var(--font-mono);
    font-size: 0.7rem;
  }
  .mobile-menu__documents{
    margin-top: 22px;
    padding-top: 2px;
    border-top: 1px solid var(--line);
  }
  .mobile-menu__list--documents a::before{
    content: "›";
    color: var(--red-600);
    font-weight: 700;
  }
  .mobile-menu__download{
    display: block;
    margin-top: 22px;
    padding: 12px 14px;
    border: 1px dashed var(--line-strong);
    border-radius: var(--radius-s);
    color: var(--navy-900);
    font-size: 0.82rem;
    font-weight: 600;
    text-decoration: none;
  }
  .mobile-menu__download:hover{ border-color: var(--red-600); color: var(--red-600); }
}

@media (max-width: 600px){
  .site-header__inner{ padding: 12px 18px; }
  .site-header .brand__logo{ width: min(190px, 50vw); max-height: 36px; }
  .site-header__actions .btn--primary{
    width: 38px;
    height: 38px;
    padding: 8px;
    font-size: 0;
    justify-content: center;
  }
  .site-header__actions .btn--primary .btn__icon{ width: 17px; height: 17px; }
  .hero{ padding: 0 18px 40px; }
  .hero__inner{ padding-top: 30px; }
  .layout{ padding: 32px 18px 64px; }
  .policy-links{ padding: 20px 18px; }
  .article__title{ font-size: 1.25rem; }
  .closing{ flex-direction: column; align-items: flex-start; padding: 28px 22px; }
  .site-footer__inner{ flex-direction: column; }
  .site-footer__contact{ text-align: left; }
  .btn--primary span{ display: none; }
}

@media (max-width: 420px){
  .site-header__inner{ gap: 8px; }
  .site-header__actions .btn--primary{ padding: 8px 10px; }
  .hero__meta{ grid-template-columns: 1fr; }
  .hero__title{ font-size: 2rem; }
  .hero__lede{ font-size: 0.98rem; }
  .layout{ padding-left: 14px; padding-right: 14px; }
}