/* =====================================================================
   RAFAEL SANTACRUZ LIMA — hoja de estilos
   Sistema de diseño "Códice": la bibliografía se presenta como un
   código jurídico — Títulos y Artículos — evocando el propio oficio
   del autor (Derecho Penal). Acento carmín como el listón marcador
   de un libro encuadernado.
===================================================================== */

:root{
  /* Color */
  --navy-950: #0b1526;
  --navy-900: #101d33;
  --navy-800: #16233e;
  --navy-700: #223055;
  --paper:    #f1efe7;
  --paper-2:  #e8e4d8;
  --ink:      #1b1a19;
  --ink-soft: #4a4944;
  --gold:     #c6973f;
  --gold-dim: #8a6a2c;
  --red:      #8a1f2d;
  --red-dim:  #6c1622;
  --line:     rgba(198,151,63,0.28);

  /* Type */
  --display: 'Playfair Display', 'Georgia', serif;
  --body: 'Source Sans 3', 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'Courier New', monospace;

  --container: 1140px;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; }
}

body{
  margin:0;
  font-family:var(--body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }

.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}

.eyebrow{
  font-family:var(--mono);
  font-size:0.72rem;
  letter-spacing:0.18em;
  text-transform:uppercase;
}

/* ---------------------------------------------------------------
   Encabezado / navegación
--------------------------------------------------------------- */
#header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:500;
  padding:18px 0;
  transition:background 0.35s ease, padding 0.35s ease, box-shadow 0.35s ease;
}
#header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
}
#header.is-scrolled{
  background:rgba(11,21,38,0.94);
  backdrop-filter:blur(6px);
  padding:12px 0;
  box-shadow:0 8px 30px rgba(0,0,0,0.25);
}
.brand{
  font-family:var(--display);
  font-size:1.15rem;
  color:#f4f1e8;
  letter-spacing:0.01em;
  display:flex;
  flex-direction:column;
  line-height:1.15;
}
.brand strong{ font-weight:700; }
.brand span{
  font-family:var(--mono);
  font-size:0.62rem;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:var(--gold);
  margin-top:2px;
}

.nav-links{
  display:flex;
  gap:34px;
}
.nav-links a{
  font-family:var(--mono);
  font-size:0.74rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:#e7e3d6;
  position:relative;
  padding:6px 0;
  transition:color 0.25s ease;
}
.nav-links a::after{
  content:"";
  position:absolute; left:0; right:100%; bottom:0;
  height:1px; background:var(--gold);
  transition:right 0.3s ease;
}
.nav-links a:hover,
.nav-links a.is-active{ color:var(--gold); }
.nav-links a:hover::after,
.nav-links a.is-active::after{ right:0; }

.nav-toggle{
  display:none;
  width:42px; height:42px;
  border:1px solid rgba(198,151,63,0.5);
  border-radius:3px;
  background:transparent;
  cursor:pointer;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute; left:11px; right:11px;
  height:1.5px; background:#f4f1e8;
  transition:transform 0.25s ease, opacity 0.25s ease, top 0.25s ease;
}
.nav-toggle span{ top:20px; }
.nav-toggle span::before{ top:-7px; }
.nav-toggle span::after{ top:7px; }
.nav-open .nav-toggle span{ background:transparent; }
.nav-open .nav-toggle span::before{ top:0; transform:rotate(45deg); }
.nav-open .nav-toggle span::after{ top:0; transform:rotate(-45deg); }

/* ---------------------------------------------------------------
   Hero
--------------------------------------------------------------- */
#hero{
  position:relative;
  min-height:100svh;
  display:flex;
  align-items:center;
  background:
    radial-gradient(1100px 700px at 82% 18%, rgba(198,151,63,0.10), transparent 60%),
    linear-gradient(160deg, var(--navy-950), var(--navy-900) 55%, var(--navy-800));
  color:#f4f1e8;
  padding:150px 0 90px;
  overflow:hidden;
}
#hero::before{
  content:"";
  position:absolute; inset:0;
  background-image:
    repeating-linear-gradient(0deg, rgba(244,241,232,0.035) 0px, rgba(244,241,232,0.035) 1px, transparent 1px, transparent 84px);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.15fr 0.85fr;
  gap:60px;
  align-items:center;
}
.hero-copy .eyebrow{ color:var(--gold); }
.hero-copy .eyebrow::before{ content:"§ "; }
h1.hero-name{
  font-family:var(--display);
  font-weight:700;
  font-size:clamp(2.4rem, 4.6vw, 4rem);
  line-height:1.04;
  margin:14px 0 6px;
}
.hero-role{
  font-family:var(--mono);
  font-size:0.95rem;
  color:#cfc9b6;
  letter-spacing:0.02em;
  margin:0 0 26px;
}
.hero-lede{
  font-size:1.05rem;
  line-height:1.75;
  color:#d8d4c6;
  max-width:52ch;
  margin:0 0 34px;
}
.hero-actions{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:44px;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 26px;
  font-family:var(--mono);
  font-size:0.78rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  border-radius:2px;
  transition:transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.btn-solid{
  background:var(--gold);
  color:var(--navy-950);
  font-weight:600;
}
.btn-solid:hover{ transform:translateY(-2px); box-shadow:0 10px 24px rgba(198,151,63,0.35); }
.btn-ghost{
  border:1px solid rgba(244,241,232,0.35);
  color:#f4f1e8;
}
.btn-ghost:hover{ border-color:var(--gold); color:var(--gold); transform:translateY(-2px); }

.hero-stats{
  display:flex;
  gap:34px;
  flex-wrap:wrap;
}
.hero-stats div{ border-left:1px solid var(--line); padding-left:14px; }
.hero-stats strong{
  display:block;
  font-family:var(--display);
  font-size:1.6rem;
  color:var(--gold);
}
.hero-stats span{
  font-family:var(--mono);
  font-size:0.68rem;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:#c9c4b5;
}

/* retrato enmarcado, estilo diploma */
.hero-portrait{ position:relative; justify-self:center; }
.portrait-frame{
  position:relative;
  width:min(320px, 78vw);
  padding:14px;
  border:1px solid var(--line);
}
.portrait-frame::before{
  content:"";
  position:absolute; inset:6px;
  border:1px solid var(--line);
  pointer-events:none;
}
.portrait-frame img{
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
  object-position:top center;
  filter:saturate(0.94) contrast(1.03);
}
.portrait-ribbon{
  position:absolute;
  top:-10px; right:22px;
  width:30px;
  padding-top:56px;
  background:var(--red);
  clip-path:polygon(0 0,100% 0,100% 100%,50% 78%,0 100%);
  box-shadow:0 10px 18px rgba(0,0,0,0.35);
}
.portrait-caption{
  margin-top:16px;
  text-align:center;
  font-family:var(--mono);
  font-size:0.68rem;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--gold);
}

/* ---------------------------------------------------------------
   Secciones tipo "Título" del códice
--------------------------------------------------------------- */
.title-section{ padding:96px 0; position:relative; }
.title-section.on-paper{ background:var(--paper); }
.title-section.on-panel{ background:var(--paper-2); }

.title-head{
  display:flex;
  align-items:flex-end;
  gap:22px;
  margin-bottom:46px;
  flex-wrap:wrap;
}
.title-tab{
  font-family:var(--mono);
  font-size:0.72rem;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:#f4f1e8;
  background:var(--navy-900);
  padding:9px 16px;
  border-left:4px solid var(--red);
  white-space:nowrap;
}
.title-head h2{
  font-family:var(--display);
  font-size:clamp(1.7rem, 3vw, 2.4rem);
  margin:0;
  color:var(--ink);
}
.title-rule{
  flex:1 1 160px;
  height:1px;
  background:linear-gradient(90deg, var(--gold-dim), transparent);
  margin-bottom:12px;
  min-width:60px;
}

.intro-block{
  display:grid;
  grid-template-columns:0.85fr 1.15fr;
  gap:60px;
  align-items:start;
}
.intro-block p{
  font-size:1.08rem;
  line-height:1.85;
  color:var(--ink-soft);
}
.intro-block p + p{ margin-top:18px; }
.intro-signoff{
  margin-top:26px;
  font-family:var(--display);
  font-style:italic;
  font-size:1.15rem;
  color:var(--ink);
}
.credential-list{
  display:flex;
  flex-direction:column;
  gap:0;
  border-top:1px solid var(--line);
}
.credential-list li{
  display:flex;
  gap:16px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  font-size:0.95rem;
  color:var(--ink-soft);
}
.credential-list li b{
  font-family:var(--mono);
  color:var(--red);
  min-width:26px;
}

/* Rejilla de artículos (docencia / libros / artículos / capítulos) */
.article-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:18px;
}
.article-card{
  display:flex;
  gap:18px;
  align-items:flex-start;
  background:#fbfaf6;
  border:1px solid var(--line);
  padding:22px 22px;
  transition:transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  opacity:0;
  transform:translateY(14px);
}
.article-card.in-view{ opacity:1; transform:translateY(0); }
.article-card:hover{
  transform:translateY(-4px);
  box-shadow:0 16px 34px rgba(11,21,38,0.12);
  border-color:var(--gold);
}
.article-num{
  font-family:var(--mono);
  font-size:0.78rem;
  color:var(--red);
  white-space:nowrap;
  padding-top:2px;
}
.article-body h3{
  font-family:var(--display);
  font-weight:700;
  font-size:1.06rem;
  line-height:1.4;
  margin:0 0 10px;
  color:var(--ink);
}
.article-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--mono);
  font-size:0.72rem;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:var(--gold-dim);
}
.article-link svg{ width:13px; height:13px; transition:transform 0.2s ease; }
.article-card:hover .article-link{ color:var(--red); }
.article-card:hover .article-link svg{ transform:translate(3px,-3px); }

@keyframes fadeUp{ from{opacity:0; transform:translateY(14px);} to{opacity:1; transform:translateY(0);} }

/* ---------------------------------------------------------------
   Contacto / Footer
--------------------------------------------------------------- */
#contacto{
  background:var(--navy-950);
  color:#e7e3d6;
  padding:96px 0 0;
}
.contact-grid{
  display:grid;
  grid-template-columns:1.1fr 0.9fr;
  gap:60px;
  padding-bottom:70px;
  border-bottom:1px solid rgba(244,241,232,0.12);
}
#contacto .title-tab{ background:rgba(244,241,232,0.08); }
#contacto .title-head h2{ color:#f4f1e8; }
.contact-lede{
  font-size:1.05rem;
  line-height:1.8;
  color:#c9c4b5;
  max-width:48ch;
  margin-top:20px;
}
.contact-block{ margin-top:28px; }
.contact-block h4{
  font-family:var(--mono);
  font-size:0.7rem;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--gold);
  margin:0 0 12px;
}
.contact-block ul li{
  padding:6px 0;
  font-size:0.98rem;
}
.contact-block a:hover{ color:var(--gold); }

.social-row{
  display:flex;
  gap:12px;
  margin-top:10px;
}
.social-row a{
  width:44px; height:44px;
  border:1px solid rgba(244,241,232,0.2);
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  transition:border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
}
.social-row a svg{ width:18px; height:18px; fill:#e7e3d6; }
.social-row a:hover{ border-color:var(--gold); background:rgba(198,151,63,0.12); transform:translateY(-3px); }

.footer-bottom{
  padding:26px 0;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  font-family:var(--mono);
  font-size:0.72rem;
  letter-spacing:0.04em;
  color:#8d8878;
}

/* ---------------------------------------------------------------
   Widget de chat (re-tinturado a la paleta del sitio)
--------------------------------------------------------------- */
.chat-widget{ position:fixed; bottom:22px; right:22px; z-index:1000; }

.chat-toggle{
  width:60px; height:60px;
  background:linear-gradient(135deg, var(--red), var(--red-dim));
  border:none; border-radius:50%;
  cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 8px 22px rgba(138,31,45,0.45);
  transition:transform 0.25s ease, box-shadow 0.25s ease;
  color:#f4f1e8; font-size:24px;
}
.chat-toggle:hover{ transform:scale(1.08); box-shadow:0 10px 26px rgba(138,31,45,0.6); }
.chat-toggle.active{ background:linear-gradient(135deg, var(--navy-800), var(--navy-950)); }

.chat-window{
  position:fixed; bottom:92px; right:22px;
  width:380px; height:500px;
  background:#fbfaf6;
  border-radius:10px;
  box-shadow:0 20px 60px rgba(11,21,38,0.35);
  display:none; flex-direction:column; overflow:hidden;
  z-index:1001;
  border:1px solid var(--line);
  animation:slideUp 0.3s ease-out;
}
@keyframes slideUp{ from{opacity:0; transform:translateY(20px);} to{opacity:1; transform:translateY(0);} }

.chat-header{
  background:linear-gradient(135deg, var(--navy-900), var(--navy-950));
  color:#f4f1e8;
  padding:20px; text-align:center; position:relative;
}
.chat-header h3{ color:#f4f1e8; margin:0; font-size:1.05em; font-weight:700; font-family:var(--display); }
.chat-header p{ margin:6px 0 0; font-size:0.82em; color:var(--gold); font-family:var(--mono); letter-spacing:0.04em; }

.chat-messages{
  flex:1; padding:18px; overflow-y:auto;
  background:var(--paper);
  display:flex; flex-direction:column; gap:12px;
}
.chat-messages::-webkit-scrollbar{ width:4px; }
.chat-messages::-webkit-scrollbar-track{ background:var(--paper); }
.chat-messages::-webkit-scrollbar-thumb{ background:var(--line); border-radius:2px; }

.message{
  max-width:80%; padding:12px 16px; border-radius:12px;
  font-size:0.9em; line-height:1.45; word-wrap:break-word;
  animation:messageSlide 0.3s ease-out;
}
@keyframes messageSlide{ from{opacity:0; transform:translateY(10px);} to{opacity:1; transform:translateY(0);} }

.message.user{ background:var(--navy-900); color:#f4f1e8; align-self:flex-end; margin-left:auto; border-bottom-right-radius:3px; }
.message.bot{ background:#fff; color:var(--ink); align-self:flex-start; border:1px solid var(--line); border-bottom-left-radius:3px; }

.typing-indicator{
  background:#fff; color:var(--ink-soft); align-self:flex-start;
  border:1px solid var(--line); display:flex; align-items:center; gap:8px; font-style:italic;
}
.typing-dots{ display:flex; gap:3px; }
.typing-dot{ width:6px; height:6px; background:var(--gold-dim); border-radius:50%; animation:typingDot 1.4s infinite; }
.typing-dot:nth-child(2){ animation-delay:0.2s; }
.typing-dot:nth-child(3){ animation-delay:0.4s; }
@keyframes typingDot{ 0%,60%,100%{opacity:0.4; transform:scale(0.8);} 30%{opacity:1; transform:scale(1);} }

.error-message{ background:#f8e6e6; color:var(--red); border:1px solid rgba(138,31,45,0.25); align-self:flex-start; font-size:0.85em; }

.chat-input{
  padding:16px; background:#fff; border-top:1px solid var(--line);
  display:flex; gap:12px; align-items:center;
}
.chat-input input{
  flex:1; padding:12px 16px; border:1px solid var(--line); border-radius:20px;
  font-size:0.9em; outline:none; font-family:var(--body);
  transition:border-color 0.2s ease, box-shadow 0.2s ease;
}
.chat-input input:focus{ border-color:var(--gold); box-shadow:0 0 0 3px rgba(198,151,63,0.15); }
.chat-input h4{ margin:0; flex:1; font-weight:normal; }

.send-button{
  width:44px; height:44px; background:var(--navy-900); border:none; border-radius:50%;
  cursor:pointer; display:flex; align-items:center; justify-content:center;
  color:#f4f1e8; font-size:16px; transition:background 0.2s ease, transform 0.2s ease;
}
.send-button:hover{ background:var(--red); transform:scale(1.05); }
.send-button:disabled{ background:#b7b3a5; cursor:not-allowed; transform:none; }

/* ---------------------------------------------------------------
   Panel de depuración (oculto salvo ?debug=1)
--------------------------------------------------------------- */
.debug-panel{
  display:none;
  position:fixed; top:20px; right:20px;
  background:var(--navy-950);
  border:1px solid var(--line);
  border-radius:8px; padding:15px; width:300px;
  z-index:2000; font-size:12px; max-height:400px; overflow-y:auto;
}
.debug-panel.is-visible{ display:block; }
.debug-header{ display:flex; justify-content:space-between; align-items:center; margin-bottom:10px; }
.debug-toggle{
  color:var(--gold); border:1px solid var(--line); border-radius:4px; padding:5px 10px;
  cursor:pointer; font-size:0.85em; font-family:var(--mono);
}
.debug-toggle::before{ content:"debug ▾"; }
.debug-content{ display:none; }
.debug-content.active{ display:block; }
.debug-item{ margin-bottom:10px; padding:8px; background:rgba(244,241,232,0.05); border-radius:4px; border-left:3px solid var(--gold); }
.debug-data{ word-break:break-all; font-family:var(--mono); font-size:11px; color:#dcd8cb; }

/* ---------------------------------------------------------------
   Utilidades / accesibilidad
--------------------------------------------------------------- */
a:focus-visible, button:focus-visible, input:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:2px;
}

/* ---------------------------------------------------------------
   Responsive
--------------------------------------------------------------- */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-portrait{ order:-1; }
  .intro-block{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr; gap:40px; }
}

@media (max-width: 860px){
  .nav-links{
    position:fixed; inset:0; z-index:400;
    background:var(--navy-950);
    flex-direction:column; align-items:center; justify-content:center;
    gap:30px;
    transform:translateY(-100%);
    transition:transform 0.35s ease;
  }
  .nav-open .nav-links{ transform:translateY(0); }
  .nav-links a{ font-size:1rem; }
  .nav-toggle{ display:block; z-index:410; }
}

@media (max-width: 640px){
  .container{ padding:0 20px; }
  .title-section{ padding:70px 0; }
  .article-grid{ grid-template-columns:1fr; }
  #hero{ padding:130px 0 70px; }
  .hero-stats{ gap:22px; }
  .chat-window{
    position:fixed; inset:0; width:100%; height:100%; border-radius:0; bottom:0; right:0;
  }
  .debug-panel{ width:calc(100% - 40px); left:20px; right:20px; top:20px; }
}