/* ============================================
   I Congreso de Innovación Educativa
   de la Cordillera Patagónica
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,400;1,9..144,500&family=Work+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

:root{
  /* Paleta */
  --azul-marino: #1B4870;
  --azul-profundo: #0F3354;
  --azul-suave: #E4EDF3;
  --teal: #5FA0AA;
  --teal-suave: #DDEBEC;
  --sol: #F4B942;
  --sol-oscuro: #D89A20;
  --verde-bosque: #5C7A4E;
  --verde-oliva: #7C8A4C;
  --crema: #F7F4EE;
  --crema-oscuro: #EFE9DD;
  --carbon: #22261F;
  --carbon-suave: #4A5047;
  --blanco: #FFFFFF;

  /* Tipografía */
  --f-display: 'Fraunces', serif;
  --f-body: 'Work Sans', sans-serif;

  /* Layout */
  --max-width: 1180px;
  --radius: 18px;
  --radius-sm: 10px;
}

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

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  font-family: var(--f-body);
  color: var(--carbon);
  background: var(--crema);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display: block; }

a{ color: inherit; text-decoration: none; }

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

h1, h2, h3, h4{
  font-family: var(--f-display);
  font-weight: 600;
  line-height: 1.12;
  margin: 0;
  color: var(--azul-profundo);
}

.eyebrow{
  font-family: var(--f-body);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before{
  content: '';
  width: 26px;
  height: 2px;
  background: var(--sol);
  display: inline-block;
}

.section{
  padding: 96px 0;
  position: relative;
}
.section--tight{ padding: 72px 0; }

.section-head{
  max-width: 680px;
  margin-bottom: 52px;
}
.section-head h2{
  font-size: clamp(2rem, 3.4vw, 2.75rem);
  margin-top: 14px;
}
.section-head p{
  margin-top: 18px;
  font-size: 1.08rem;
  color: var(--carbon-suave);
}
.section-head.center{
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-body);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 15px 30px;
  border-radius: 100px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn--primary{
  background: var(--sol);
  color: var(--azul-profundo);
  box-shadow: 0 6px 0 var(--sol-oscuro);
}
.btn--primary:hover{
  transform: translateY(-2px);
  box-shadow: 0 8px 0 var(--sol-oscuro);
}
.btn--primary:active{
  transform: translateY(2px);
  box-shadow: 0 3px 0 var(--sol-oscuro);
}
.btn--ghost{
  background: transparent;
  border-color: rgba(255,255,255,0.5);
  color: var(--blanco);
}
.btn--ghost:hover{ border-color: var(--blanco); }

/* ============ HEADER / NAV ============ */
.site-header{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  background: rgba(15, 51, 84, 0);
  transition: background .3s ease, padding .3s ease, box-shadow .3s ease;
}
.site-header.is-scrolled{
  background: rgba(15, 51, 84, 0.96);
  padding: 12px 0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.site-header .container{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-header .brand{
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--blanco);
}
.site-header .brand img{ height: 44px; width: auto; }
.site-header .brand span{
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.15;
  max-width: 160px;
}
.site-nav{
  display: flex;
  align-items: center;
  gap: 30px;
}
.site-nav a{
  color: var(--blanco);
  font-size: 0.92rem;
  font-weight: 500;
  opacity: 0.88;
  transition: opacity .18s ease;
}
.site-nav a:hover{ opacity: 1; }
.nav-toggle{
  display: none;
  background: none;
  border: none;
  color: var(--blanco);
  font-size: 1.6rem;
  cursor: pointer;
}

/* ============ HERO ============ */
.hero{
  position: relative;
  background: linear-gradient(155deg, var(--azul-profundo) 0%, var(--azul-marino) 62%, var(--teal) 130%);
  color: var(--blanco);
  padding: 170px 0 0;
  overflow: hidden;
}
.hero::before{
  content: '';
  position: absolute;
  top: -120px; right: -120px;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(244,185,66,0.35) 0%, rgba(244,185,66,0) 70%);
}
.hero-inner{
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
  padding-bottom: 90px;
}
.hero-edition{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.22);
  padding: 7px 16px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 26px;
}
.hero-edition .dot{
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--sol);
}
.hero h1{
  color: var(--blanco);
  font-size: clamp(2.4rem, 4.6vw, 3.6rem);
  font-weight: 600;
}
.hero h1 em{
  font-style: italic;
  color: var(--sol);
  font-weight: 500;
}
.hero-lema{
  margin-top: 24px;
  font-family: var(--f-display);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--teal-suave);
  max-width: 520px;
  line-height: 1.5;
}
.hero-lema--sub{
  margin-top: 6px;
  font-style: normal;
  font-size: 1.05rem;
  font-weight: 400;
  color: rgba(255,255,255,0.78);
}
.hero-meta{
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-meta .chip{
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 10px 16px;
  border-radius: 100px;
  font-size: 0.88rem;
  font-weight: 500;
}
.hero-meta .chip svg{ width: 17px; height: 17px; flex-shrink: 0; }
.hero-ctas{
  margin-top: 40px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.hero-ctas .btn{
  padding: 15px 24px;
}
.hero-portrait{
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.hero-emblem{
  width: 100%;
  max-width: 360px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 38% 32%, rgba(255,255,255,0.16), rgba(255,255,255,0.03) 68%);
  border: 1px solid rgba(255,255,255,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 30px 40px rgba(0,0,0,0.35));
}
.hero-emblem img{
  width: 62%;
  height: auto;
}
.hero-organiza{
  margin-left: auto;
  align-self: center;
  font-size: 0.74rem;
  color: rgba(255,255,255,0.6);
  white-space: nowrap;
  text-decoration: none;
  transition: color .15s ease;
}
.hero-organiza:hover{
  color: rgba(255,255,255,0.85);
}
.hero-organiza strong{
  color: rgba(255,255,255,0.88);
  font-weight: 600;
}
.hero-circular{
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(244,185,66,0.12);
  border: 1.5px solid rgba(244,185,66,0.45);
  color: var(--sol);
  padding: 11px 20px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: background .18s ease, transform .18s ease, border-color .18s ease;
  animation: circularPulse 2.6s ease-in-out infinite;
}
.hero-circular:hover{
  background: rgba(244,185,66,0.22);
  border-color: var(--sol);
  transform: translateY(-1px);
}
.hero-circular-arrow{
  animation: circularArrow 1.6s ease-in-out infinite;
}
@keyframes circularPulse{
  0%, 100% { box-shadow: 0 0 0 0 rgba(244,185,66,0.25); }
  50% { box-shadow: 0 0 0 6px rgba(244,185,66,0); }
}
@keyframes circularArrow{
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(2px); }
}

/* Cordillera divider - signature element */
.ridge-divider{
  display: block;
  width: 100%;
  height: auto;
  position: relative;
  z-index: 3;
  margin-bottom: -1px;
}

/* ============ SOBRE ============ */
.sobre{
  background: var(--crema);
}
.sobre-grid{
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  align-items: start;
}
.sobre-text p{
  font-size: 1.08rem;
  color: var(--carbon-suave);
  margin: 0 0 20px;
}
.sobre-text p:first-child{
  font-family: var(--f-display);
  font-size: 1.28rem;
  color: var(--carbon);
  font-weight: 400;
  line-height: 1.5;
}
.stat-stack{
  display: grid;
  gap: 18px;
}
.stat-card{
  background: var(--blanco);
  border-radius: var(--radius);
  padding: 26px 28px;
  border: 1px solid rgba(27,72,112,0.08);
  box-shadow: 0 8px 24px rgba(15,51,84,0.05);
}
.stat-card .num{
  font-family: var(--f-display);
  font-size: 2.6rem;
  font-weight: 600;
  color: var(--azul-marino);
  line-height: 1;
}
.stat-card .num span{ color: var(--teal); }
.stat-card .label{
  margin-top: 8px;
  font-size: 0.92rem;
  color: var(--carbon-suave);
}

/* Charla previa banner */
.charla-previa{
  margin-top: 56px;
  background: var(--blanco);
  border: 1.5px dashed var(--teal);
  border-radius: var(--radius);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}
.charla-previa .icon-badge{
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--teal-suave);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.charla-previa .icon-badge svg{ width: 26px; height: 26px; color: var(--azul-marino); }
.charla-previa .txt{ flex: 1; min-width: 240px; }
.charla-previa .txt strong{ color: var(--azul-profundo); font-family: var(--f-display); font-size: 1.1rem; }
.charla-previa .txt p{ margin: 4px 0 0; color: var(--carbon-suave); font-size: 0.96rem; }
.tag-confirmar{
  background: var(--sol);
  color: var(--azul-profundo);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 100px;
  white-space: nowrap;
}

/* ============ EJES TEMATICOS ============ */
.ejes{ background: var(--azul-suave); }
.ejes-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.eje-card{
  background: var(--blanco);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform .2s ease, box-shadow .2s ease;
  border-top: 4px solid var(--teal);
}
.eje-card:nth-child(4n+2){ border-top-color: var(--sol); }
.eje-card:nth-child(4n+3){ border-top-color: var(--verde-bosque); }
.eje-card:nth-child(4n+4){ border-top-color: var(--azul-marino); }
.eje-card:hover{
  transform: translateY(-6px);
  box-shadow: 0 16px 30px rgba(15,51,84,0.1);
}
.eje-card .icon{
  width: 46px; height: 46px;
  margin-bottom: 18px;
  color: var(--azul-marino);
}
.eje-card h3{
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--azul-profundo);
}

/* ============ DISERTANTES ============ */
.disertantes{ background: var(--crema); }
.disertantes-grid{
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-width: 900px;
  margin: 0 auto;
}
.disertante-card{
  background: var(--blanco);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(15,51,84,0.08);
  display: flex;
  align-items: center;
}
.disertante-card .foto{
  width: 150px;
  flex-shrink: 0;
  overflow: hidden;
  line-height: 0;
}
.disertante-card .foto img{
  width: 100%; height: auto; display: block;
}
.disertante-card .info{ padding: 20px 26px; }
.disertante-card .bio{
  font-size: 0.92rem;
  color: var(--carbon-suave);
  margin-top: 0;
  line-height: 1.6;
}
.disertante-card .bio + .bio{ margin-top: 12px; }

.bio-wrap{
  margin-top: 8px;
}
.bio-extra{
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height .35s ease, opacity .25s ease;
}
.bio-wrap.expanded .bio-extra{
  max-height: 800px;
  opacity: 1;
  margin-top: 12px;
}

.bio-toggle{
  display: none;
  margin-top: 10px;
  background: none;
  border: none;
  padding: 0;
  font-family: var(--f-body);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--teal);
  cursor: pointer;
}
.bio-toggle.visible{ display: inline-block; }
.bio-toggle:hover{ text-decoration: underline; }

.bio-provisoria{
  display: inline-block;
  margin-top: 12px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--teal);
  background: var(--teal-suave);
  padding: 4px 10px;
  border-radius: 100px;
}
.disertantes-talleres{
  margin-top: 40px;
}
.disertantes-subtitulo{
  font-family: var(--f-display);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--teal);
  margin: 10px 0 0;
}
.disertantes-titulo-talleres{
  font-size: clamp(2rem, 3.4vw, 2.75rem);
}
.disertantes-nota{
  margin-top: 18px;
  font-size: 1.08rem;
  color: var(--carbon-suave);
  font-style: normal;
  max-width: 680px;
}

/* ============ MODALIDAD ============ */
.modalidad{ background: var(--azul-profundo); color: var(--blanco); }
.modalidad .section-head h2{ color: var(--blanco); }
.modalidad .section-head p{ color: rgba(255,255,255,0.72); }
.modalidad-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.modalidad-card{
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius);
  padding: 34px;
}
.modalidad-card .icon-badge{
  width: 54px; height: 54px;
  border-radius: 50%;
  background: var(--sol);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.modalidad-card .icon-badge svg{ width: 26px; height: 26px; color: var(--azul-profundo); }
.modalidad-card h3{ color: var(--blanco); font-size: 1.35rem; }
.modalidad-card p{ color: rgba(255,255,255,0.75); margin-top: 10px; }
.modalidad-card ul{
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}
.modalidad-card li{
  display: flex;
  gap: 10px;
  padding: 8px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.93rem;
  color: rgba(255,255,255,0.85);
}
.modalidad-card li:first-of-type{ border-top: none; }
.modalidad-card li svg{ width: 16px; height: 16px; flex-shrink: 0; margin-top: 3px; color: var(--sol); }

/* ============ INSCRIPCION ============ */
.inscripcion{ background: var(--crema); }
.arancel-box{
  background: var(--blanco);
  border-radius: var(--radius);
  padding: 44px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  box-shadow: 0 10px 30px rgba(15,51,84,0.06);
  margin-bottom: 60px;
}
.arancel-precio .eyebrow{ margin-bottom: 14px; }
.arancel-precio .precio{
  font-family: var(--f-display);
  font-size: 2.4rem;
  color: var(--azul-marino);
  font-weight: 600;
}
.arancel-precio p{ color: var(--carbon-suave); margin-top: 10px; }
.medios-pago{ }
.medios-pago h4{ font-size: 0.95rem; color: var(--azul-profundo); margin-bottom: 14px; }
.medios-pago ul{ list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.medios-pago li{
  display: flex; align-items: center; gap: 10px;
  font-size: 0.94rem; color: var(--carbon-suave);
  background: var(--crema-oscuro);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
}
.medios-pago li svg{ width: 18px; height: 18px; color: var(--teal); flex-shrink: 0; }

/* Tabla de precios */
.precios-tabla{
  width: 100%;
  border-collapse: collapse;
  margin-top: 18px;
}
.precios-tabla th{
  text-align: left;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--carbon-suave);
  padding: 10px 14px;
  border-bottom: 2px solid var(--crema-oscuro);
}
.precios-tabla td{
  padding: 16px 14px;
  border-bottom: 1px solid var(--crema-oscuro);
  vertical-align: middle;
}
.precios-tabla td strong{
  display: block;
  color: var(--azul-profundo);
  font-family: var(--f-display);
  font-size: 1.05rem;
}
.precios-tabla td span{
  display: block;
  font-size: 0.82rem;
  color: var(--carbon-suave);
  margin-top: 2px;
}
.precios-tabla .precio-cell{
  font-family: var(--f-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--azul-marino);
  white-space: nowrap;
}
.precios-tabla tbody tr:last-child td{ border-bottom: none; }
.precios-tabla-wrap{ overflow-x: auto; }

/* Version mobile: tarjetas apiladas en vez de tabla */
.precios-mobile{ display: none; }
.precio-card{
  background: var(--crema);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  margin-top: 14px;
}
.precio-etapa{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 10px;
}
.precio-etapa strong{
  font-family: var(--f-display);
  color: var(--azul-profundo);
  font-size: 1.02rem;
}
.precio-etapa span{
  font-size: 0.76rem;
  color: var(--carbon-suave);
  white-space: nowrap;
}
.precio-fila{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-top: 1px solid var(--crema-oscuro);
  font-size: 0.92rem;
}
.precio-fila:first-of-type{ border-top: none; }
.precio-fila span{ color: var(--carbon-suave); }
.precio-fila strong{
  font-family: var(--f-display);
  color: var(--azul-marino);
  font-size: 1.05rem;
}

@media (max-width: 600px){
  .precios-tabla-wrap{ display: none; }
  .precios-mobile{ display: block; }
}


/* Titulos de sub-secciones dentro del formulario */
.form-section-title{
  margin: 30px 0 4px;
  font-family: var(--f-body);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--teal);
}
.form-section-title:first-of-type{ margin-top: 8px; }

/* Checkboxes */
.form-checks{
  margin-top: 26px;
  display: grid;
  gap: 14px;
}
.checkbox-field{
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.92rem;
  color: var(--carbon-suave);
  cursor: pointer;
}
.checkbox-field input{
  margin-top: 3px;
  width: 18px;
  height: 18px;
  accent-color: var(--teal);
  flex-shrink: 0;
  cursor: pointer;
}

/* Formulario */
.form-wrap{
  background: var(--blanco);
  border-radius: var(--radius);
  padding: 44px;
  box-shadow: 0 10px 30px rgba(15,51,84,0.06);
}
.form-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 30px;
}
.form-field{ display: flex; flex-direction: column; gap: 7px; }
.form-field.full{ grid-column: 1 / -1; }
.form-field label{ font-size: 0.86rem; font-weight: 600; color: var(--azul-profundo); }
.form-field input,
.form-field select{
  font-family: var(--f-body);
  font-size: 0.98rem;
  padding: 13px 15px;
  border-radius: var(--radius-sm);
  border: 1.5px solid #DDE3DA;
  background: var(--crema);
  color: var(--carbon);
  transition: border-color .18s ease;
}
.form-field input:focus,
.form-field select:focus{
  outline: none;
  border-color: var(--teal);
}
.form-submit{
  margin-top: 30px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.form-note{ font-size: 0.85rem; color: var(--carbon-suave); }
.form-status{
  margin-top: 18px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  display: none;
}
.form-status.show{ display: block; }
.form-status.ok{ background: #E5F0E1; color: var(--verde-bosque); }
.form-status.error{ background: #FBE6E6; color: #B23A3A; }

/* ============ SEDE ============ */
.sede{ background: var(--teal-suave); }
.sede-grid{
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: stretch;
}
.sede-info{
  background: var(--blanco);
  border-radius: var(--radius);
  padding: 36px;
}
.sede-info .item{
  display: flex;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--crema-oscuro);
}
.sede-info .item:first-of-type{ border-top: none; padding-top: 0; }
.sede-info .item svg{ width: 20px; height: 20px; color: var(--teal); flex-shrink: 0; margin-top: 2px; }
.sede-info .item strong{ display: block; color: var(--azul-profundo); font-size: 0.95rem; }
.sede-info .item span{ font-size: 0.9rem; color: var(--carbon-suave); }
.sede-map{
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 320px;
}
.sede-map iframe{ width: 100%; height: 100%; min-height: 320px; border: 0; }

/* ============ ALIANZAS ============ */
.alianzas{ background: var(--crema); }
.alianzas-grid{
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
}
.alianza-card{
  background: var(--blanco);
  border-radius: var(--radius-sm);
  height: 100px;
  flex: 0 1 calc((100% - 5*18px)/6);
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(15,51,84,0.06);
  transition: transform .18s ease, box-shadow .18s ease;
}
.alianza-card:hover{
  transform: translateY(-3px);
  box-shadow: 0 14px 28px rgba(15,51,84,0.12);
}
.alianza-card img{
  max-width: 100%;
  max-height: 58px;
  object-fit: contain;
}

/* ============ FOOTER ============ */
.site-footer{
  background: var(--azul-profundo);
  color: rgba(255,255,255,0.82);
  padding: 64px 0 32px;
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-brand{ display: flex; gap: 14px; align-items: flex-start; }
.footer-brand img{ height: 50px; }
.footer-brand p{ font-size: 0.88rem; color: rgba(255,255,255,0.6); margin-top: 10px; max-width: 280px; }
.footer-col h4{
  color: var(--blanco);
  font-family: var(--f-body);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-col a, .footer-col span{
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 12px;
}
.footer-col a:hover{ color: var(--sol); }
.footer-col svg{ width: 17px; height: 17px; flex-shrink: 0; }
.footer-bottom{
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
}
.footer-organiza{
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.footer-organiza-pill{
  display: inline-flex;
  align-items: center;
  background: var(--crema);
  padding: 10px 24px;
  border-radius: 100px;
  transition: transform .15s ease;
}
.footer-organiza-pill:hover{
  transform: translateY(-1px);
}
.footer-organiza-pill img{
  height: 36px;
  width: auto;
  display: block;
}

/* ============ MODAL DE CONFIRMACIÓN ============ */
.modal-overlay{
  position: fixed;
  inset: 0;
  background: rgba(15, 51, 84, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 200;
  opacity: 0;
  transition: opacity .2s ease;
}
.modal-overlay.show{
  display: flex;
}
.modal-overlay.show.visible{
  opacity: 1;
}
.modal-card{
  background: var(--blanco);
  border-radius: var(--radius);
  padding: 40px 36px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  box-shadow: 0 24px 60px rgba(15,51,84,0.35);
  transform: translateY(14px) scale(0.97);
  transition: transform .22s ease;
}
.modal-overlay.show.visible .modal-card{
  transform: translateY(0) scale(1);
}
.modal-icon{
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--teal-suave);
  color: var(--verde-bosque);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
}
.modal-card h3{
  font-size: 1.4rem;
}
.modal-card p{
  margin-top: 10px;
  color: var(--carbon-suave);
  font-size: 0.98rem;
  line-height: 1.6;
}
.modal-card .btn{
  margin-top: 26px;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 980px){
  .hero-inner{ grid-template-columns: 1fr; padding-bottom: 60px; }
  .hero-portrait{ order: -1; max-width: 240px; margin: 0 auto; }
  .hero-portrait img{ max-width: 220px; }
  .sobre-grid{ grid-template-columns: 1fr; }
  .ejes-grid{ grid-template-columns: repeat(2, 1fr); }
  .disertantes-grid{ max-width: 100%; }
  .modalidad-grid{ grid-template-columns: 1fr; }
  .arancel-box{ grid-template-columns: 1fr; }
  .form-grid{ grid-template-columns: 1fr; }
  .sede-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; gap: 30px; }
  .alianza-card{ flex-basis: calc((100% - 2*18px)/3); }
}
@media (max-width: 720px){
  .site-nav{
    position: fixed;
    top: 76px; left: 0; right: 0;
    background: var(--azul-profundo);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 28px;
    gap: 18px;
    transform: translateY(-140%);
    transition: transform .28s ease;
  }
  .site-nav.open{ transform: translateY(0); }
  .nav-toggle{ display: block; }
  .ejes-grid{ grid-template-columns: 1fr; }
  .section{ padding: 64px 0; }
}
@media (max-width: 520px){
  .disertante-card .foto{ width: 110px; }
  .disertante-card .info{ padding: 16px 16px; }
  .disertante-card .bio{ font-size: 0.86rem; }
  .alianza-card{ flex-basis: calc((100% - 18px)/2); }
}