/* ============================================
   XVIII CONEIC — landing (estilo papel + ladrillo)
   ============================================ */
:root{
  --paper:#F7F2E7;
  --panel:#EFE6D4;
  --line:#E0D3BC;
  --ink:#1C130D;
  --ink-dim:#6B5B49;
  --brick:#c3532e;
  --brick-deep:#8f3a20;
  --clay:#e8a877;
  --on-brick:#F7F2E7;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.001ms !important; transition-duration:0.001ms !important; }
}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter', sans-serif;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3, .slab{
  font-family:'Zilla Slab', serif;
  font-weight:600;
  letter-spacing:-0.01em;
}
a{ color:inherit; text-decoration:none; }
img,svg{ display:block; max-width:100%; }
.wrap{
  max-width:1160px;
  margin:0 auto;
  padding:0 32px;
}
::selection{ background:var(--brick); color:var(--on-brick); }

/* ---------- NAV ---------- */
header.nav{
  position:sticky; top:0; z-index:50;
  background:rgba(247,242,231,0.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:1160px; margin:0 auto; padding:14px 32px;
  display:flex; align-items:center; justify-content:space-between;
}
.brand{ display:flex; align-items:baseline; gap:8px; }
nav.links{ display:flex; align-items:center; gap:32px; }
nav.links a{ font-size:0.92rem; color:var(--ink-dim); transition:color .2s; }
nav.links a:hover{ color:var(--ink); }
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 24px;
  font-size:0.92rem; font-weight:600;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:all .18s ease;
}
.btn-primary{ background:var(--brick); color:var(--on-brick); }
.btn-primary:hover{ background:var(--brick-deep); }
.btn-ghost{ border-color:var(--line); color:var(--ink); }
.btn-ghost:hover{ border-color:var(--brick); color:var(--brick); }
.menu-toggle{ display:none; background:none; border:none; color:var(--ink); font-size:1.6rem; cursor:pointer; }

/* ---------- HERO ---------- */
.hero{
  position:relative;
  padding:80px 0 72px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero .wrap{
  position:relative; z-index:2;
  display:grid;
  grid-template-columns:1.1fr 0.9fr;
  align-items:center;
  gap:48px;
}
.hero-logo{
  justify-self:center;
  width:100%;
  max-width:380px;
}

/* ---------- PAGE WRAP ---------- */
.page-wrap{ position:relative; }
.hero-tag{
  display:inline-block;
  font-size:0.82rem;
  color:var(--brick-deep);
  border-bottom:1px solid var(--brick);
  padding-bottom:6px;
  margin-bottom:28px;
}
h1.title{
  font-size:clamp(3.2rem, 9vw, 6.4rem);
  line-height:0.92;
  color:var(--ink);
  margin-bottom:20px;
}
h1.title em{ font-style:normal; color:var(--brick); }
.hero-sub{
  max-width:560px;
  font-size:1.15rem;
  color:var(--ink-dim);
  margin-bottom:12px;
}
.hero-place{
  font-family:'Zilla Slab', serif;
  font-size:1.4rem;
  color:var(--ink);
  margin-bottom:36px;
}
.hero-place b{ color:var(--brick); }
.hero-ctas{ display:flex; gap:16px; flex-wrap:wrap; margin-bottom:8px; }

/* ---------- COUNTDOWN ---------- */
.countdown-strip{
  background:var(--ink);
  border-bottom:1px solid var(--line);
}
.countdown-inner{
  display:flex; align-items:center; justify-content:center;
  gap:24px; padding:16px 32px; flex-wrap:wrap;
}
.countdown-label{
  font-size:0.85rem;
  color:var(--clay);
  letter-spacing:0.01em;
}
.countdown{ display:flex; gap:22px; }
.c-unit{ display:flex; flex-direction:column; align-items:center; min-width:44px; }
.c-num{
  font-family:'Zilla Slab', serif;
  font-size:1.5rem; font-weight:700;
  color:var(--paper); line-height:1;
}
.c-unit-label{
  font-size:0.68rem;
  color:rgba(247,242,231,0.6);
  margin-top:2px;
}

/* ---------- STATS STRIP ---------- */
.stats{ border-bottom:1px solid var(--line); }
.stats .wrap{ display:grid; grid-template-columns:repeat(3,1fr); }
.stat{ padding:40px 32px; border-left:1px solid var(--line); }
.stat:first-child{ border-left:none; padding-left:0; }
.stat .num{
  font-family:'Zilla Slab', serif;
  font-size:2.6rem; color:var(--brick); line-height:1; margin-bottom:8px;
}
.stat .label{ color:var(--ink-dim); font-size:0.95rem; }

/* ---------- SECTION HEADS ---------- */
section{ padding:88px 0; }
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head h2{ font-size:clamp(2rem,4vw,2.7rem); color:var(--ink); margin-bottom:14px; }
.section-head p{ color:var(--ink-dim); font-size:1.05rem; }

/* ---------- PROGRAMA / TABS ---------- */
.programa{ border-bottom:1px solid var(--line); }
.tabs-nav{ display:flex; gap:10px; margin-bottom:32px; flex-wrap:wrap; }
.tab-btn{
  font-family:'Zilla Slab', serif;
  background:var(--panel);
  border:1.5px solid var(--line);
  padding:12px 22px;
  cursor:pointer;
  display:flex; flex-direction:column; align-items:flex-start; gap:2px;
  min-width:110px;
  transition:border-color .18s ease, background .18s ease;
}
.tab-btn .tab-date{ font-family:'Inter',sans-serif; font-size:0.72rem; color:var(--brick-deep); }
.tab-btn .tab-name{ font-size:1.05rem; font-weight:600; color:var(--ink); }
.tab-btn.is-active, .tab-btn:hover{ border-color:var(--brick); background:var(--paper); }
.tab-panel{ display:none; }
.tab-panel.is-active{ display:block; }
.agenda-list{
  list-style:none;
  display:grid; gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.agenda-list li{
  display:grid; grid-template-columns:90px 1fr; gap:20px;
  background:var(--paper); padding:18px 22px;
}
.agenda-time{ font-family:'Zilla Slab', serif; color:var(--brick); font-weight:600; }
.agenda-note{ margin-top:24px; font-size:0.9rem; color:var(--ink-dim); font-style:italic; }

/* ---------- PONENTES ---------- */
.ponentes{ background:var(--panel); border-bottom:1px solid var(--line); }
.speakers-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.speaker-card{ background:var(--paper); padding:32px 24px; text-align:left; }
.speaker-avatar{ margin-bottom:16px; }
.speaker-avatar svg{ width:30px; height:30px; stroke:var(--brick); }
.speaker-card h3{ font-size:1.05rem; margin-bottom:8px; }
.speaker-card p{ font-size:0.9rem; color:var(--ink-dim); }

/* ---------- INCLUYE GRID ---------- */
.incluye{ border-bottom:1px solid var(--line); background:var(--panel); }
.incluye-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line);
}
.incluye-item{
  background:var(--panel); padding:32px 24px;
  display:flex; flex-direction:column; gap:16px;
  transition:background .2s;
}
.incluye-item:hover{ background:#E5D9C2; }
.incluye-item svg{ width:30px; height:30px; stroke:var(--brick); }
.incluye-item span{ font-size:0.95rem; color:var(--ink); }

/* ---------- INSCRIPCION ---------- */
.inscripcion{ position:relative; background:var(--brick); color:var(--on-brick); overflow:hidden; }
.inscripcion .logo-mark{
  position:absolute; right:-40px; top:50%; transform:translateY(-50%);
  height:150%; width:auto; opacity:0.16;
}
.inscripcion .wrap{
  position:relative; z-index:2;
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:32px;
}
.inscripcion h2{ font-size:2.3rem; color:var(--on-brick); margin-bottom:8px; }
.inscripcion p{ color:#F3E0D2; max-width:420px; }
.price-block{ text-align:right; }
.price-block .amount{ font-family:'Zilla Slab', serif; font-size:4.2rem; line-height:1; color:var(--on-brick); }
.price-block .cur{ font-size:1.6rem; }
.price-block .caption{ font-size:0.9rem; color:#F3E0D2; margin-top:4px; }
.inscripcion .btn-primary{ background:var(--ink); color:var(--on-brick); margin-top:20px; }
.inscripcion .btn-primary:hover{ background:#000; }

/* ---------- CONTACTO ---------- */
.contacto .wrap{ display:grid; grid-template-columns:1.1fr 0.9fr; gap:64px; }
.phone-list{ display:flex; flex-direction:column; gap:0; margin-top:28px; }
.phone-row{
  display:flex; align-items:center; gap:16px;
  padding:20px 0; border-top:1px solid var(--line);
  font-family:'Zilla Slab', serif; font-size:1.3rem; color:var(--ink);
  transition:color .18s ease;
}
.phone-row:last-child{ border-bottom:1px solid var(--line); }
.phone-row:hover{ color:var(--brick); }
.phone-row svg{ width:20px; height:20px; stroke:var(--brick); flex-shrink:0; }
.whatsapp-card{
  background:var(--panel); border:1px solid var(--line); padding:32px;
  display:flex; gap:24px; align-items:center;
  transition:border-color .18s ease;
}
.whatsapp-card:hover{ border-color:var(--brick); }
.qr-box{
  width:120px; height:120px;
  background:repeating-conic-gradient(var(--ink) 0% 25%, var(--panel) 0% 50%) 0 0/16px 16px;
  border:6px solid var(--paper);
  flex-shrink:0;
}
.whatsapp-card h3{ font-size:1.15rem; color:var(--ink); margin-bottom:6px; }
.whatsapp-card p{ color:var(--ink-dim); font-size:0.9rem; }

/* ---------- REDES SOCIALES (contacto) ---------- */
.social-list{
  display:flex; align-items:center; gap:14px; flex-wrap:wrap;
  margin-top:24px; padding-top:24px; border-top:1px solid var(--line);
}
.social-label{
  font-size:0.78rem; letter-spacing:0.03em; text-transform:uppercase;
  color:var(--ink-dim);
}
.social-btn{
  display:inline-flex; align-items:center; gap:8px;
  font-size:0.92rem; font-weight:600; color:var(--ink);
  border:1.5px solid var(--line); padding:9px 16px;
  transition:border-color .18s ease, color .18s ease;
}
.social-btn svg{ width:18px; height:18px; stroke:var(--brick); flex-shrink:0; }
.social-btn:hover{ border-color:var(--brick); color:var(--brick); }

/* ---------- FOOTER ---------- */
footer{ border-top:1px solid var(--line); padding:56px 0 0; position:relative; overflow:hidden; }
.footer-top{
  display:flex; justify-content:space-between; align-items:flex-end; flex-wrap:wrap; gap:24px;
  position:relative; z-index:2;
}
.tagline{ font-family:'Zilla Slab', serif; font-size:1.5rem; max-width:420px; color:var(--ink); }
.tagline .accent{ color:var(--brick); }
.footer-right{ display:flex; flex-direction:column; align-items:flex-end; gap:14px; }
.foot-meta{ color:var(--ink-dim); font-size:0.85rem; text-align:right; }
.footer-social{ display:flex; gap:10px; }
.footer-social a{
  display:flex; align-items:center; justify-content:center;
  width:36px; height:36px;
  border:1.5px solid var(--line);
  transition:border-color .18s ease, background .18s ease;
}
.footer-social svg{ width:17px; height:17px; stroke:var(--ink-dim); transition:stroke .18s ease; }
.footer-social a:hover{ border-color:var(--brick); background:var(--panel); }
.footer-social a:hover svg{ stroke:var(--brick); }

.organiza{
  margin-top:40px;
  padding:24px 32px;
  border-top:1px solid var(--line);
  display:flex; align-items:center; gap:24px; flex-wrap:wrap;
}
.organiza-label{
  font-size:0.75rem; letter-spacing:0.04em; color:var(--ink-dim);
  text-transform:uppercase; flex-shrink:0;
}
.organiza-logos{ display:flex; align-items:center; gap:20px; flex-wrap:wrap; }
.organiza-logos img{ height:44px; width:auto; filter:grayscale(1) opacity(0.75); transition:filter .2s ease; }
.organiza-logos a:hover img,
.organiza-logos a:focus-visible img{ filter:grayscale(0) opacity(1); }

/* ---------- RESPONSIVE ---------- */
@media (max-width:880px){
  nav.links{ display:none; }
  .menu-toggle{ display:block; }
  nav.links.is-open{
    display:flex; position:absolute; top:100%; left:0; right:0;
    flex-direction:column; align-items:flex-start; gap:0;
    background:var(--paper); border-bottom:1px solid var(--line);
    padding:8px 32px 16px;
  }
  nav.links.is-open a{ padding:10px 0; width:100%; }
  .hero .wrap{ grid-template-columns:1fr; text-align:center; }
  .hero-place, .hero-sub{ margin-left:auto; margin-right:auto; }
  .hero-ctas{ justify-content:center; }
  .hero-logo{ order:-1; max-width:260px; margin-bottom:8px; }
  .stats .wrap{ grid-template-columns:1fr; }
  .stat{ border-left:none; border-top:1px solid var(--line); padding:28px 0; }
  .stat:first-child{ border-top:none; }
  .incluye-grid{ grid-template-columns:repeat(2,1fr); }
  .speakers-grid{ grid-template-columns:repeat(2,1fr); }
  .contacto .wrap{ grid-template-columns:1fr; }
  .inscripcion .wrap{ flex-direction:column; align-items:flex-start; }
  .price-block{ text-align:left; }
  footer .footer-top{ flex-direction:column; align-items:flex-start; }
  .footer-right{ align-items:flex-start; }
  .foot-meta{ text-align:left; }
  .tabs-nav{ gap:8px; }
  .tab-btn{ min-width:0; flex:1 1 40%; padding:10px 14px; }
  .agenda-list li{ grid-template-columns:70px 1fr; padding:14px; }
}

/* ---------- FOCO ACCESIBLE ---------- */
a:focus-visible, button:focus-visible{
  outline:3px solid var(--brick-deep);
  outline-offset:2px;
}