/* ============================================================
   Semana de Inteligencia Artificial y Ciberseguridad — KAS Ecuador × CITEC
   Estilo: inspirado en Apple (tipografía grande, mucho aire, scroll suave)
   con acentos futuristas (azul eléctrico / cian).
   ============================================================ */

:root{
  --navy-deep:#080f24;
  --navy:#0b1730;
  --navy-2:#132449;
  --indigo:#3d3792;
  --blue:#2f6fed;
  --cyan:#4fd8e8;
  --violet:#7c5cff;
  --violet-deep:#5b3fe0;
  --paper:#ffffff;
  --paper-soft:#f5f6fa;
  --ink:#0b1730;
  --muted:#5b6472;
  --line:#e6e8ef;
  --line-dark:rgba(255,255,255,0.12);

  --gradient-cta: linear-gradient(135deg, var(--violet) 0%, var(--blue) 100%);
  --gradient-cta-hover: linear-gradient(135deg, #9070ff 0%, #4a83f2 100%);
  --glow-violet: 0 12px 32px rgba(124,92,255,0.4);

  --claude-cream:#f5f1ea;
  --claude-card:#ffffff;
  --claude-orange:#d97757;
  --claude-orange-deep:#bf5b3a;
  --claude-ink:#3d3929;

  --radius-sm:10px;
  --radius-md:18px;
  --radius-lg:28px;
  --shadow-1:0 1px 2px rgba(11,23,48,0.06), 0 8px 24px rgba(11,23,48,0.06);
  --shadow-2:0 20px 60px rgba(11,23,48,0.18);
  --ease: cubic-bezier(.22,1,.36,1);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
.mono{font-family:"JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
button{font-family:inherit;}
.wrap{max-width:1160px; margin:0 auto; padding:0 24px;}
@media (max-width:640px){ .wrap{padding:0 20px;} }

h1,h2,h3,h4{margin:0; font-weight:700; letter-spacing:-0.02em;}
p{margin:0;}
.eyebrow{
  font-family:"JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  font-size:0.76rem; text-transform:uppercase; letter-spacing:0.16em;
  font-weight:600; color:var(--blue);
}

/* ---------- Textura HUD reutilizable ---------- */
.grid-bg{position:relative;}
.grid-bg::before{
  content:""; position:absolute; inset:0; pointer-events:none; z-index:0;
  background-image:
    linear-gradient(rgba(47,111,237,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47,111,237,0.05) 1px, transparent 1px);
  background-size:38px 38px;
  mask-image:radial-gradient(ellipse 65% 55% at 50% 20%, black 0%, transparent 75%);
}
.grid-bg > .wrap{position:relative; z-index:1;}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0; transform:translateY(28px); transition:opacity .8s var(--ease), transform .8s var(--ease);}
.reveal.is-visible{opacity:1; transform:none;}

/* ============================================================
   NAV
   ============================================================ */
.site-nav{
  position:sticky; top:0; z-index:100;
  background:rgba(8,15,36,0.72);
  backdrop-filter:saturate(180%) blur(18px);
  -webkit-backdrop-filter:saturate(180%) blur(18px);
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.site-nav .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:64px; gap:20px;
}
.nav-brand{display:flex; align-items:center; gap:12px; min-width:0;}
.nav-brand img{height:34px; width:auto; filter:brightness(0) invert(1);}
.nav-links{display:flex; align-items:center; gap:28px; flex:1; justify-content:center;}
.nav-links a{
  color:rgba(255,255,255,0.78); font-size:0.88rem; font-weight:500;
  transition:color .2s;
}
.nav-links a:hover, .nav-links a.active{color:#fff;}
.nav-cta{
  background:var(--gradient-cta); color:#fff !important; padding:9px 20px;
  border-radius:999px; font-size:0.85rem; font-weight:600;
  white-space:nowrap; transition:transform .2s var(--ease), box-shadow .2s;
  box-shadow:0 6px 18px rgba(124,92,255,0.35);
}
.nav-cta:hover{box-shadow:var(--glow-violet); transform:translateY(-1px);}
.nav-toggle{display:none; background:none; border:none; color:#fff; font-size:1.4rem; cursor:pointer; padding:4px 8px;}

@media (max-width:860px){
  .nav-links{
    position:fixed; inset:64px 0 auto 0; background:var(--navy-deep);
    flex-direction:column; align-items:flex-start; padding:18px 24px 28px;
    gap:6px; transform:translateY(-12px); opacity:0; pointer-events:none;
    transition:opacity .25s, transform .25s; border-bottom:1px solid var(--line-dark);
  }
  .nav-links.open{opacity:1; transform:none; pointer-events:auto;}
  .nav-links a{padding:10px 0; width:100%; font-size:1rem;}
  .nav-toggle{display:block;}
  .nav-brand span{display:none;}
}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative; overflow:hidden;
  background:var(--navy-deep);
  color:#fff;
  min-height:96vh;
  display:flex; flex-direction:column; justify-content:flex-end;
  padding:140px 0 76px;
}
.hero-photo{
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover; object-position:center 38%; z-index:0;
}
.hero-scrim{
  position:absolute; inset:0; z-index:1; pointer-events:none;
  background:
    linear-gradient(90deg, rgba(8,15,36,0.8) 0%, rgba(8,15,36,0.3) 32%, rgba(8,15,36,0.05) 52%, rgba(8,15,36,0.4) 100%),
    linear-gradient(0deg, rgba(8,15,36,0.96) 0%, rgba(8,15,36,0.4) 42%, rgba(8,15,36,0.08) 68%);
}
.hero-glow{
  position:absolute; inset:0; z-index:2; pointer-events:none;
  background:
    radial-gradient(35% 40% at 88% 15%, rgba(124,92,255,0.25), transparent 60%),
    radial-gradient(30% 30% at 10% 90%, rgba(79,216,232,0.18), transparent 65%);
}
.hero-grid{display:none;}
.hero .wrap{position:relative; z-index:3;}
.hero-copy{max-width:640px;}
.hero-copy .eyebrow{color:var(--cyan); text-shadow:0 2px 12px rgba(0,0,0,0.5);}
.hero-copy h1{
  font-size:clamp(2.1rem, 5vw, 3.6rem); line-height:1.05; margin-top:16px;
  letter-spacing:-0.03em; text-shadow:0 4px 24px rgba(0,0,0,0.45);
}
.hero-copy h1 em{
  font-style:normal;
  background:linear-gradient(90deg, var(--cyan), var(--violet));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero-meta{display:flex; gap:28px; margin-top:30px; flex-wrap:wrap;}
.hero-meta div{border-left:2px solid var(--cyan); padding-left:12px;}
.hero-meta .label{font-size:0.7rem; text-transform:uppercase; letter-spacing:0.1em; color:rgba(255,255,255,0.5);}
.hero-meta .value{font-size:0.95rem; font-weight:600; margin-top:3px;}
.hero-actions{display:flex; gap:14px; margin-top:38px; flex-wrap:wrap;}
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:15px 26px; border-radius:999px; font-size:0.95rem; font-weight:600;
  transition:transform .25s var(--ease), background .2s, box-shadow .2s;
  cursor:pointer; border:none;
}
.btn-primary{background:var(--gradient-cta); color:#fff; box-shadow:0 8px 24px rgba(124,92,255,0.3);}
.btn-primary:hover{transform:translateY(-2px); box-shadow:var(--glow-violet); background:var(--gradient-cta-hover);}
.btn-ghost{
  background:rgba(255,255,255,0.06); color:#fff; border:1px solid rgba(255,255,255,0.28);
  backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{background:rgba(255,255,255,0.14); transform:translateY(-2px); border-color:rgba(255,255,255,0.5);}
.btn-dark{background:var(--navy); color:#fff;}
.btn-dark:hover{background:var(--navy-2); transform:translateY(-2px);}

@media (min-width:900px){
  .hero-copy{margin-left:36%;}
}
@media (max-width:899px){
  .hero-photo{ object-position:62% 30%; }
}
@media (max-width:640px){
  .hero{ min-height:78vh; padding:120px 0 48px; }
  .hero-photo{ object-position:center center; }
}

/* ============================================================
   SECTIONS (general)
   ============================================================ */
section{padding:96px 0;}
.section-head{max-width:640px; margin-bottom:48px;}
.section-head h2{font-size:clamp(1.7rem, 3.4vw, 2.5rem); margin-top:14px; color:var(--ink);}
.section-head p{margin-top:14px; color:var(--muted); font-size:1.02rem;}
.section-dark{background:var(--navy-deep); color:#fff;}
.section-dark .section-head h2{color:#fff;}
.section-dark .section-head p{color:rgba(255,255,255,0.7);}
.section-soft{background:var(--paper-soft);}

/* ============================================================
   AGENDA — tarjetas estilo HUD futurista
   ============================================================ */
.day-tabs{display:flex; gap:10px; margin-bottom:36px; flex-wrap:wrap;}
.day-tab{
  font-family:"JetBrains Mono", ui-monospace, monospace;
  font-size:0.86rem; font-weight:600; padding:12px 22px; border:1px solid var(--line);
  background:#fff; border-radius:999px; cursor:pointer; color:var(--ink);
  transition:all .2s var(--ease);
}
.day-tab.active{background:var(--gradient-cta); color:#fff; border-color:transparent; box-shadow:0 8px 20px rgba(124,92,255,0.35);}
.day-tab:hover:not(.active){border-color:var(--blue); color:var(--blue);}
.day-panel{display:none;}
.day-panel.active{display:block; animation:fadeIn .4s var(--ease);}
@keyframes fadeIn{from{opacity:0; transform:translateY(8px);} to{opacity:1; transform:none;}}
.day-loc{
  display:inline-flex; align-items:center; gap:8px; font-family:"JetBrains Mono", monospace;
  font-size:0.86rem; font-weight:600;
  color:var(--blue); margin-bottom:24px; padding:8px 16px; background:rgba(47,111,237,0.08);
  border-radius:999px;
}
.agenda-grid{display:grid; grid-template-columns:repeat(auto-fill, minmax(280px,1fr)); gap:24px;}
.agenda-card{
  background:var(--navy); border-radius:var(--radius-md); overflow:hidden;
  border:1px solid rgba(79,216,232,0.15); transition:transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
  position:relative;
}
.agenda-card:hover{transform:translateY(-6px); box-shadow:0 20px 50px rgba(11,23,48,0.35), 0 0 0 1px rgba(79,216,232,0.4); border-color:var(--cyan);}
.agenda-card-media{position:relative; aspect-ratio:16/10; overflow:hidden;}
.agenda-card-media img{width:100%; height:100%; object-fit:cover; transition:transform .5s var(--ease);}
.agenda-card:hover .agenda-card-media img{transform:scale(1.06);}
.agenda-card-media::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, transparent 40%, var(--navy) 100%);
}
.agenda-card-time{
  position:absolute; top:12px; left:12px; z-index:2; font-family:"JetBrains Mono", monospace;
  font-size:0.72rem; font-weight:600; color:#fff; background:rgba(8,15,36,0.55);
  padding:5px 10px; border-radius:999px; backdrop-filter:blur(6px);
  border:1px solid rgba(79,216,232,0.35);
}
.agenda-card-tag{
  display:inline-block; font-family:"JetBrains Mono", monospace; font-size:0.66rem; font-weight:700;
  text-transform:uppercase; letter-spacing:0.08em; color:var(--cyan);
  background:rgba(79,216,232,0.1); border:1px solid rgba(79,216,232,0.3);
  padding:3px 10px; border-radius:6px; margin-bottom:10px;
}
.agenda-card-body{padding:20px 22px 24px; color:#fff;}
.agenda-card-title{font-weight:700; font-size:1.02rem; line-height:1.35;}
.agenda-card-speaker{font-size:0.86rem; color:var(--cyan); margin-top:10px; font-weight:600;}
.agenda-card-desc{font-size:0.86rem; color:rgba(255,255,255,0.65); margin-top:8px; line-height:1.5;}

/* ============================================================
   PONENTES
   ============================================================ */
.ponentes-grid{display:grid; grid-template-columns:repeat(auto-fill, minmax(230px,1fr)); gap:24px;}
.ponente-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius-md);
  overflow:hidden; cursor:pointer; transition:transform .3s var(--ease), box-shadow .3s var(--ease);
  text-align:left; display:block; width:100%; padding:0; font:inherit; color:inherit;
}
.ponente-card:hover{transform:translateY(-6px); box-shadow:0 20px 50px rgba(11,23,48,0.25), 0 0 0 1px rgba(79,216,232,0.5);}
.ponente-photo{
  width:100%; aspect-ratio:1/1; position:relative; overflow:hidden;
  background:linear-gradient(135deg, var(--navy), var(--indigo));
}
.ponente-photo img{width:100%; height:100%; object-fit:cover;}
.ponente-photo img[src*="aylin-macas"]{object-position:64% 20%;}
.ponente-photo .initials{
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  font-size:2.6rem; font-weight:700; color:rgba(255,255,255,0.85);
}
.ponente-photo::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, transparent 55%, rgba(11,23,48,0.75) 100%);
}
.ponente-flag{
  position:absolute; top:12px; right:12px; z-index:2; font-size:0.68rem; font-weight:700;
  text-transform:uppercase; letter-spacing:0.05em; color:#fff; background:rgba(0,0,0,0.35);
  padding:4px 9px; border-radius:999px; backdrop-filter:blur(6px);
}
.ponente-body{padding:18px 20px 22px;}
.ponente-body h3{font-size:1.05rem; color:var(--ink);}
.ponente-body .role{font-size:0.85rem; color:var(--muted); margin-top:6px; line-height:1.45;}
.ponente-body .more{
  display:inline-flex; align-items:center; gap:6px; margin-top:14px; font-size:0.82rem;
  font-weight:600; color:var(--blue);
}

/* modal bio */
.bio-modal{
  position:fixed; inset:0; z-index:200; display:none;
  align-items:flex-start; justify-content:center; padding:6vh 20px;
  background:rgba(8,15,36,0.6); backdrop-filter:blur(6px);
  overflow-y:auto;
}
.bio-modal.open{display:flex;}
.bio-modal-card{
  background:#fff; border-radius:var(--radius-lg); max-width:640px; width:100%;
  padding:40px; position:relative; box-shadow:var(--shadow-2);
  animation:modalIn .3s var(--ease);
}
@keyframes modalIn{from{opacity:0; transform:translateY(18px) scale(0.98);} to{opacity:1; transform:none;}}
.bio-modal-close{
  position:absolute; top:18px; right:18px; width:36px; height:36px; border-radius:50%;
  border:1px solid var(--line); background:#fff; font-size:1.1rem; cursor:pointer; color:var(--muted);
}
.bio-modal-head{display:flex; gap:18px; align-items:center; margin-bottom:22px;}
.bio-modal-head img, .bio-modal-head .initials{
  width:76px; height:76px; border-radius:50%; object-fit:cover; flex-shrink:0;
  background:linear-gradient(135deg, var(--navy), var(--indigo)); display:flex; align-items:center;
  justify-content:center; color:#fff; font-weight:700; font-size:1.4rem;
}
.bio-modal-head h3{font-size:1.3rem;}
.bio-modal-head .role{font-size:0.9rem; color:var(--muted); margin-top:4px;}
.bio-modal-text{color:#333; font-size:0.98rem; line-height:1.7; white-space:pre-line;}

/* ============================================================
   GALERÍA — estilo Pixieset (grid ajustado por álbum/carpeta)
   ============================================================ */
.galeria-status{padding:60px 24px; text-align:center; color:var(--muted); font-size:0.95rem;}
.galeria-cta{text-align:center; margin-top:48px;}

.pixie-toolbar{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  flex-wrap:wrap; margin-bottom:28px;
}
.pixie-count{
  font-family:"JetBrains Mono", ui-monospace, monospace; font-size:0.8rem;
  color:var(--muted); white-space:nowrap;
}
.pixie-grid{
  display:grid; grid-template-columns:repeat(auto-fill, minmax(230px,1fr)); gap:3px;
}
.pixie-grid .photo-tile{
  display:block; width:100%; padding:0; margin:0; border:none; cursor:pointer;
  overflow:hidden; aspect-ratio:1/1; background:var(--paper-soft); position:relative;
}
.pixie-grid img{
  width:100%; height:100%; object-fit:cover; display:block;
  transition:transform .5s var(--ease);
}
.pixie-grid .photo-tile::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, transparent 55%, rgba(8,15,36,0.55) 100%);
  opacity:0; transition:opacity .3s var(--ease);
}
.pixie-grid .photo-tile:hover img{transform:scale(1.06);}
.pixie-grid .photo-tile:hover::after{opacity:1;}

@media (max-width:640px){
  .pixie-grid{grid-template-columns:repeat(3, 1fr); gap:2px;}
  .pixie-toolbar{margin-bottom:18px;}
}

/* Lightbox (visor de foto a pantalla completa) */
.lightbox{
  position:fixed; inset:0; z-index:300; display:none; align-items:center; justify-content:center;
  background:rgba(5,9,20,0.94); backdrop-filter:blur(6px); -webkit-backdrop-filter:blur(6px);
  touch-action:pan-y;
}
.lightbox.open{display:flex;}
.lightbox-img{max-width:92vw; max-height:88vh; object-fit:contain; border-radius:6px; box-shadow:0 20px 60px rgba(0,0,0,0.5);}
.lightbox-close, .lightbox-nav{
  position:absolute; border-radius:50%; background:rgba(255,255,255,0.1);
  border:1px solid rgba(255,255,255,0.2); color:#fff; cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  backdrop-filter:blur(6px); -webkit-backdrop-filter:blur(6px);
  transition:background .2s;
}
.lightbox-close:hover, .lightbox-nav:hover{background:rgba(255,255,255,0.22);}
.lightbox-close{top:18px; right:18px; width:42px; height:42px; font-size:1.15rem;}
.lightbox-nav{top:50%; transform:translateY(-50%); width:48px; height:48px; font-size:1.6rem;}
.lightbox-prev{left:16px;}
.lightbox-next{right:16px;}
@media (max-width:640px){
  .lightbox-close{width:38px; height:38px; top:12px; right:12px; font-size:1rem;}
  .lightbox-nav{width:40px; height:40px; font-size:1.3rem;}
  .lightbox-prev{left:8px;}
  .lightbox-next{right:8px;}
}

/* ============================================================
   FOOTER
   ============================================================ */
footer{background:var(--navy-deep); color:rgba(255,255,255,0.6); padding:0 0 32px;}
.footer-sponsors{border-bottom:1px solid var(--line-dark); padding:48px 0;}
.footer-sponsor-block + .footer-sponsor-block{margin-top:32px;}
.footer-sponsor-label{
  font-size:0.72rem; text-transform:uppercase; letter-spacing:0.14em; color:rgba(255,255,255,0.45);
  margin-bottom:18px; text-align:center;
}
.footer-logos{display:flex; align-items:center; justify-content:center; gap:40px; flex-wrap:wrap;}
.footer-logos img{
  height:34px; width:auto; max-width:140px; object-fit:contain;
  filter:brightness(0) invert(1); opacity:0.85; transition:opacity .2s, transform .2s;
}
.footer-logos img:hover{opacity:1; transform:translateY(-2px);}
.footer-bottom{padding-top:28px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:14px; font-size:0.82rem;}
.footer-bottom a{color:rgba(255,255,255,0.7);}
.footer-bottom a:hover{color:#fff;}

.footer-social{display:flex; gap:10px; align-items:center;}
.footer-social a{
  width:36px; height:36px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  background:rgba(255,255,255,0.06); border:1px solid rgba(255,255,255,0.14); color:rgba(255,255,255,0.75);
  transition:all .2s var(--ease);
}
.footer-social a:hover{background:rgba(79,216,232,0.15); border-color:var(--cyan); color:var(--cyan); transform:translateY(-2px);}
.footer-social svg{width:16px; height:16px; fill:currentColor;}

/* ============================================================
   PAGE HERO (subpages: ponentes / galería)
   ============================================================ */
.page-hero{
  background:linear-gradient(160deg, var(--navy-deep), var(--navy));
  color:#fff; padding:120px 0 64px; text-align:center;
}
.page-hero .eyebrow{color:var(--cyan); justify-content:center; display:flex;}
.page-hero h1{font-size:clamp(2rem, 4.4vw, 3.2rem); margin-top:14px;}
.page-hero p{margin-top:16px; color:rgba(255,255,255,0.75); max-width:560px; margin-left:auto; margin-right:auto;}

/* Utility */
.text-center{text-align:center;}
.mt-32{margin-top:32px;}