/* ===== Paleta / Base (misma paleta formal que veníamos usando) ===== */
:root{
  --bg-1:#14102A; --bg-2:#2B0E4E; --bg-3:#5A1FAE; --bg-4:#7B2CF8; --bg-5:#AEEBFF;
  --electric:#79E0FF; --magenta:#AD2EF5; --white:#ffffff;
  --text:#E9E7FF; --muted:#B7B4D6; --accent:#7B2CF8; --accent-2:#AD2EF5; --teal:#79E0FF;
  --radius:18px; --shadow:0 14px 40px rgba(5,5,15,.35);
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial,"Noto Sans",sans-serif;color:var(--text);background:#0C0A1A;line-height:1.6}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.underline{text-decoration:underline}
.container{width:min(1200px,92%);margin-inline:auto}
.skip{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip:focus{left:12px;top:12px;width:auto;height:auto;background:#000;color:#fff;padding:8px 10px;border-radius:8px;z-index:999}

/* ===== Announcement + Progress ===== */
.announce{background:#0f0d24;border-bottom:1px solid rgba(174,235,255,.15)}
.announce__bar{display:flex;justify-content:space-between;align-items:center;padding:8px 0}
.btn-xs{padding:6px 10px;border-radius:999px;font-size:.85rem}
.progress{position:sticky;top:0;height:3px;background:transparent;z-index:70}
.progress__bar{height:3px;width:0;background:linear-gradient(90deg,var(--accent),var(--magenta));}

/* ===== Header / Nav ===== */
.header{position:sticky;top:0;z-index:60;background:linear-gradient(180deg,rgba(12,10,26,.85),rgba(12,10,26,.55));backdrop-filter:saturate(1.2) blur(8px)}
.nav{display:flex;align-items:center;gap:22px;padding:12px 0}
.brand{font-weight:800;color:#fff;letter-spacing:.2px}
.menu{list-style:none;display:flex;gap:28px;margin:0;padding:0}
.menu a{color:#D7D3FF;font-weight:500;opacity:.95}
.menu a:hover,.menu a.active{opacity:1;color:#fff}
.btn{display:inline-block;background:linear-gradient(90deg,var(--accent),var(--magenta));color:#fff;border-radius:12px;padding:10px 16px;font-weight:700;box-shadow:0 8px 24px rgba(123,44,248,.35);transition:transform .2s,filter .2s}
.btn:hover{transform:translateY(-1px);filter:saturate(1.1)}
.btn-lg{padding:14px 22px;border-radius:14px}
.btn-pill{border-radius:999px}
.btn-ghost{background:transparent;border:2px solid rgba(174,235,255,.4);color:#E8E6FF}
.block{display:block;text-align:center}
.hamburger{display:none;background:transparent;border:0;width:36px;height:34px;gap:5px;flex-direction:column;justify-content:center}
.hamburger span{display:block;height:3px;background:#fff;border-radius:3px}

/* ===== Hero con triángulos bien definidos ===== */
.hero{position:relative;color:#fff;overflow:hidden;background:linear-gradient(125deg,#0C0A1A 10%, #1A1238 40%, #3A168A 70%, #7B2CF8 95%);padding:86px 0 120px}
.hero__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
.eyebrow{margin:0 0 8px;opacity:.9;letter-spacing:.2px;color:#AEEBFF}
.hero h1{font-size:44px;line-height:1.05;margin:0}
.hero h2{margin:8px 0 12px;font-weight:800;color:#AEEBFF}
.hero .date{font-size:18px;margin:6px 0 18px}
.hero__cta .sub{margin-top:10px;opacity:.9}
.hero__qr{display:flex;justify-content:center}
.qr-box{background:rgba(255,255,255,.06);border:1px solid rgba(174,235,255,.25);border-radius:18px;padding:18px 18px 12px;text-align:center;backdrop-filter:blur(4px)}
.qr-box.big{padding:24px}
.qr{width:160px;height:160px;border-radius:12px;background:linear-gradient(90deg,transparent 45%,#000 45% 55%,transparent 55%),linear-gradient(0deg,transparent 45%,#000 45% 55%,transparent 55%),repeating-linear-gradient(45deg,#000 0 8px,transparent 8px 16px),#fff;box-shadow:inset 0 0 0 10px #fff}
.qr-box p{margin:10px 0 0;color:#E8E6FF;opacity:.9}

/* Halos / Triángulos */
.decor{position:absolute;border-radius:999px;filter:blur(70px);opacity:.5;mix-blend-mode:screen}
.decor--1{width:520px;height:520px;background:radial-gradient(circle,#7B2CF8,#2B0E4E);right:-140px;bottom:-120px}
.decor--2{width:380px;height:380px;background:radial-gradient(circle,#79E0FF,#2B0E4E);left:-120px;top:-80px}
.hero::before{content:"";position:absolute;right:-12vw;bottom:-8vh;width:64vw;height:64vh;pointer-events:none;background:linear-gradient(135deg,#7B2CF8 0%, #AD2EF5 60%, #79E0FF 100%);clip-path:polygon(18% 0%,100% 0%,100% 80%,60% 62%);opacity:.55;filter:saturate(1.1)}
.hero::after{content:"";position:absolute;left:-14vw;bottom:-10vh;width:60vw;height:56vh;pointer-events:none;background:linear-gradient(135deg,#79E0FF 0%, #AEEBFF 80%);clip-path:polygon(0 60%,30% 32%,58% 66%,0 100%);opacity:.45}
.hero .shards{position:absolute;inset:0;pointer-events:none}
.hero .shards::before{content:"";position:absolute;width:0;height:0;border-style:solid;filter:drop-shadow(0 10px 18px rgba(121,224,255,.28));border-width:0 140px 140px 0;border-color:transparent #79E0FF transparent transparent;right:16vw;top:14vh;transform:skewX(-6deg) rotate(4deg);opacity:.9}
.hero .shards::after{content:"";position:absolute;width:0;height:0;border-style:solid;filter:drop-shadow(0 10px 18px rgba(123,44,248,.28));border-width:130px 0 0 170px;border-color:transparent transparent transparent #7B2CF8;right:4vw;bottom:12vh;transform:skewX(6deg) rotate(-3deg);opacity:.85}

/* Countdown */
.countdown{display:flex;gap:12px;margin:12px 0 18px}
.countdown div{background:rgba(174,235,255,.10);border:1px solid rgba(174,235,255,.25);padding:10px 12px;border-radius:12px;text-align:center;min-width:70px}
.countdown span{display:block;font-weight:800;font-size:22px}
.countdown small{opacity:.85}

/* ===== Secciones & utilidades ===== */
.section{padding:70px 0;background:linear-gradient(180deg,#0C0A1A,#14102A)}
.section-gradient{background:linear-gradient(180deg,#1A1238 0,#221545 35%,#2B0E4E 100%)}
.section-sky{background:linear-gradient(180deg,#0F0C22 0,#0F112A 50%,#0C0A1A 100%)}
.section__title{text-align:center;margin:0 0 26px;font-size:28px;color:#E9E7FF}
.cards{display:grid;gap:22px}
.cards.two{grid-template-columns:repeat(2,1fr)}
.cards.three{grid-template-columns:repeat(3,1fr)}
.card{border-radius:18px;background:linear-gradient(180deg,rgba(123,44,248,.10),rgba(12,10,26,.35));border:1px solid rgba(174,235,255,.10);padding:24px;box-shadow:var(--shadow);color:#E9E7FF}
.card.soft{background:linear-gradient(180deg,rgba(90,31,174,.25),rgba(12,10,26,.4))}
.card.sky{background:linear-gradient(180deg,rgba(121,224,255,.20),rgba(12,10,26,.35))}
.card.gradient.purple{background:linear-gradient(135deg,#5A1FAE 0,#7B2CF8 60%,#AD2EF5 100%);color:#fff;border:none}
.card.gradient.teal{background:linear-gradient(135deg,#2BB6E2 0,#79E0FF 60%,#AEEBFF 100%);color:#0C0A1A;border:none}
.muted{color:var(--muted)} .small{font-size:.95rem} .tiny{font-size:.85rem}
.mb-8{margin-bottom:8px}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-40{margin-top:40px}
.center{text-align:center}

/* Why / Stats */
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:10px}
.why__item{background:linear-gradient(180deg,rgba(123,44,248,.12),rgba(12,10,26,.45));border:1px solid rgba(174,235,255,.12);border-radius:16px;padding:18px;text-align:center;box-shadow:var(--shadow)}
.why__icon{font-size:28px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:26px}
.stat{background:linear-gradient(135deg,#2B0E4E,#5A1FAE 60%,#7B2CF8);color:#fff;border-radius:16px;padding:22px;text-align:center;box-shadow:0 10px 30px rgba(123,44,248,.25)}
.stat span{display:block;font-size:34px;font-weight:800;line-height:1}

/* Agenda */
.filters{display:flex;gap:10px;justify-content:center;align-items:center;margin:6px 0 16px;flex-wrap:wrap}
.filters input, .filters select{background:#0F112A;color:#E9E7FF;border:1px solid rgba(174,235,255,.25);border-radius:999px;padding:10px 12px}
.tabs{display:flex;gap:8px;justify-content:center;margin-bottom:18px;flex-wrap:wrap}
.tab{background:rgba(174,235,255,.1);border:1px solid rgba(174,235,255,.2);color:#E9E7FF;padding:10px 14px;border-radius:999px;font-weight:600;cursor:pointer}
.tab.active{background:linear-gradient(90deg,var(--accent),var(--magenta));border-color:transparent}
.tabpanes{display:none}.tabpanes.active{display:block}
.agenda{list-style:none;margin:0;padding:0}
.agenda li{display:grid;grid-template-columns:90px 1fr;gap:12px;padding:12px;border-bottom:1px solid rgba(174,235,255,.12)}
.agenda time{font-weight:800;color:#AEEBFF}
.chip{background:rgba(174,235,255,.12);border:1px solid rgba(174,235,255,.25);color:#E9E7FF;padding:6px 10px;border-radius:999px;font-weight:700;cursor:pointer}

/* Speakers */
.speakers{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.speaker{background:linear-gradient(180deg,rgba(90,31,174,.18),rgba(12,10,26,.55));border:1px solid rgba(174,235,255,.12);border-radius:18px;padding:22px;text-align:center;box-shadow:var(--shadow)}
.speaker__btn{all:unset;cursor:pointer;display:block}
.avatar{width:96px;height:96px;border-radius:999px;background:radial-gradient(circle,#AEEBFF,#79E0FF);display:flex;align-items:center;justify-content:center;font-size:44px;margin:0 auto 10px;color:#0C0A1A}
.chips{margin-top:4px;color:#CFCBF5;font-weight:600}

/* Precios */
.pricebar{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.coupon{display:flex;gap:8px;align-items:center}
.coupon input{background:#0F112A;color:#E9E7FF;border:1px solid rgba(174,235,255,.25);border-radius:999px;padding:8px 12px}
.price .price__value{font-size:34px;font-weight:800;color:#AEEBFF;margin:6px 0 6px;text-shadow:0 0 18px rgba(121,224,255,.45)}
.price.featured{outline:3px solid rgba(174,235,255,.35);transform:translateY(-2px);box-shadow:0 16px 40px rgba(123,44,248,.3)}
.ribbon{position:relative;display:inline-block;background:linear-gradient(90deg,#79E0FF,#AEEBFF);color:#0C0A1A;font-weight:800;padding:6px 10px;border-radius:999px;margin-bottom:8px}

/* Slider testimonios */
.slider{position:relative}
.slider__viewport{overflow:hidden;border-radius:16px}
.slide{min-width:100%;padding:24px}
.slide blockquote{background:linear-gradient(180deg,rgba(174,235,255,.06),rgba(12,10,26,.35));border:1px solid rgba(174,235,255,.15);border-radius:16px;padding:22px}
.slide cite{display:block;margin-top:8px;color:var(--muted);font-style:normal}
.slider__nav{position:absolute;top:50%;transform:translateY(-50%);background:#1a133d;border:1px solid rgba(174,235,255,.25);color:#fff;border-radius:999px;width:40px;height:40px}
.slider__nav.prev{left:-8px} .slider__nav.next{right:-8px}

/* Sede / mapa */
.mapwrap{position:relative;padding-bottom:56%;height:0;overflow:hidden;border-radius:16px;box-shadow:var(--shadow)}
.mapwrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.tips h6{margin:14px 0 6px}

/* FAQ / Newsletter / Form */
.accordion details{background:rgba(174,235,255,.06);border:1px solid rgba(174,235,255,.15);border-radius:14px;padding:12px 16px;margin:10px 0}
.accordion summary{cursor:pointer;font-weight:700}
.accordion p{margin:10px 0 0}
.newsletter{max-width:700px;margin:auto;display:flex;gap:10px;align-items:center}
.newsletter input{flex:1;background:#0F112A;color:#E9E7FF;border:1px solid rgba(174,235,255,.25);border-radius:12px;padding:12px}
.newsletter .hp, .form .hp{position:absolute;left:-5000px;opacity:0;height:0;width:0}
.form{max-width:900px;margin:auto}
.form__grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form__grid label{display:flex;flex-direction:column;gap:6px;font-weight:600}
.form input,.form select,.form textarea{background:#0F112A;color:#E9E7FF;border:1px solid rgba(174,235,255,.25);border-radius:12px;padding:12px}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid #79E0FF}
.check-terms{display:flex;align-items:center;gap:10px;margin-top:10px}
.form__actions{display:flex;align-items:center;gap:14px;margin-top:14px}
.form__msg{margin-top:10px}

/* Patrocinadores por niveles */
.section-sponsors{background:linear-gradient(180deg,#1A1238,#2B0E4E)}
.sponsors{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:10px 0 16px}
.tier-gold .sponsor{border:1px solid rgba(255,215,0,.35)}
.tier-silver .sponsor{border:1px solid rgba(230,230,230,.35)}
.tier-bronze .sponsor{border:1px solid rgba(205,127,50,.35)}
.sponsor{background:linear-gradient(180deg,rgba(174,235,255,.12),rgba(12,10,26,.6));border:1px solid rgba(174,235,255,.18);border-radius:16px;padding:22px;text-align:center;font-weight:800;color:#AEEBFF;filter:grayscale(.1);transition:.2s}
.sponsor:hover{filter:none}

/* CTA / Footer / sticky */
.cta{background: radial-gradient(900px 320px at 110% 0%, rgba(121,224,255,.18), transparent 60%), linear-gradient(135deg,#0C0A1A,#2B0E4E 60%,#7B2CF8);color:#fff;padding:70px 0 80px}
.cta__box{text-align:center}
.cta__grid{display:grid;grid-template-columns:120px 1fr;gap:18px;align-items:center;justify-content:center;margin-top:18px}
.cta a.btn{box-shadow:0 10px 30px rgba(123,44,248,.45)}
.footer{background:#0B091C;color:#D7D3FF;padding:38px 0 26px}
.footer__grid{display:grid;grid-template-columns:2fr 2fr 1fr;gap:18px}
.footer a{color:#D7D3FF}
.contact{list-style:none;margin:0;padding:0}

.cta-sticky{position:sticky;bottom:0;z-index:50;background:linear-gradient(180deg,rgba(20,16,52,.0),rgba(20,16,52,.85));backdrop-filter:blur(6px)}
.cta-sticky__bar{display:flex;align-items:center;justify-content:space-between;padding:10px 0}
.backtop{position:fixed;right:18px;bottom:84px;width:44px;height:44px;border-radius:999px;border:0;background:#2B0E4E;color:#fff;font-weight:900;cursor:pointer;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.2s}
.backtop.show{opacity:1;visibility:visible}

/* Cookies */
.cookies{position:fixed;left:0;right:0;bottom:0;background:rgba(10,8,24,.9);border-top:1px solid rgba(174,235,255,.2);display:none}
.cookies__box{max-width:1200px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:10px 14px}
.cookies__actions{display:flex;gap:10px}

/* Modal */
.modal{border:0;padding:0;background:transparent}
.modal::backdrop{background:rgba(0,0,0,.6)}
.modal__card{background:#0F112A;border:1px solid rgba(174,235,255,.25);border-radius:18px;max-width:640px;margin:auto;padding:18px;color:#E9E7FF;box-shadow:var(--shadow)}
.modal__close{background:#1a133d;border:1px solid rgba(174,235,255,.25);color:#fff;border-radius:999px;width:34px;height:34px;float:right;cursor:pointer}

/* ===== Animaciones visibles pero suaves ===== */
@keyframes floatY {0%{transform:translateY(0)}50%{transform:translateY(-22px)}100%{transform:translateY(0)}}
@keyframes floatXY {0%{transform:translate3d(0,0,0) rotate(0.6deg)}50%{transform:translate3d(20px,-26px,0) rotate(-0.6deg)}100%{transform:translate3d(0,0,0) rotate(0.6deg)}}
@keyframes driftDown {0%{transform:translateY(-20px)}100%{transform:translateY(20px)}}
@keyframes glow {0%,100%{filter:drop-shadow(0 8px 26px rgba(123,44,248,.45))}50%{filter:drop-shadow(0 16px 38px rgba(121,224,255,.55))}}
.decor--1{animation:floatXY 18s ease-in-out infinite alternate}
.decor--2{animation:floatXY 22s ease-in-out infinite alternate-reverse}
.hero .shards::before{animation:floatY 14s ease-in-out infinite}
.hero .shards::after{animation:floatY 16s ease-in-out infinite reverse}
.btn{animation:glow 6s ease-in-out infinite}
.price.featured{animation:floatY 12s ease-in-out infinite}
@media (prefers-reduced-motion: reduce){*{animation:none !important;transition:none !important}}

/* ===== Responsive ===== */
@media (max-width: 1100px){.agenda li{grid-template-columns:80px 1fr}}
@media (max-width: 980px){
  .cards.two,.cards.three{grid-template-columns:1fr}
  .why,.stats,.speakers,.sponsors,.footer__grid{grid-template-columns:1fr 1fr}
  .hero__grid{grid-template-columns:1fr}
  .cta__grid{grid-template-columns:1fr}
  .menu{display:none;position:absolute;top:58px;left:0;right:0;background:#1A1238;padding:14px 0}
  .menu li{padding:6px 18px}
  .hamburger{display:flex}
}
@media (max-width: 620px){
  .why,.stats,.speakers,.sponsors,.footer__grid{grid-template-columns:1fr}
  .qr{width:130px;height:130px}
  .hero{padding-top:74px}
  .agenda li{grid-template-columns:70px 1fr}
}