*{
  margin:0;
  padding:0;
  box-sizing:border-box;
}

:root{

  /* =========================
  NEW PALETTE
  ========================= */

  --navy:#0f172a;
  --navy-soft:#1e293b;

  --ink:#111827;
  --text:#18202b;

  --muted:#667085;

  --bg:#f6f7fb;

  --card:#ffffffcc;

  --line:rgba(15,23,42,.08);

  --mint:#7dd3c7;
  --mint-strong:#49b7a5;

  --gold:#d6b36a;
  --gold-soft:#efe5c9;

  --silver:#c8d0da;
  --bronze:#9d7a64;

  --radius:28px;

  --shadow:
    0 10px 40px rgba(15,23,42,.06);

  --shadow-hover:
    0 18px 60px rgba(15,23,42,.10);

  --transition:.35s cubic-bezier(.22,1,.36,1);

  --max:1180px;
}

html{
  scroll-behavior:smooth;
}

body{
  font-family:"Inter",sans-serif;

  background:
    radial-gradient(circle at top left,
      rgba(125,211,199,.10),
      transparent 30%
    ),
    radial-gradient(circle at bottom right,
      rgba(214,179,106,.08),
      transparent 30%
    ),
    var(--bg);

  color:var(--text);

  overflow-x:hidden;

  line-height:1.6;

  -webkit-font-smoothing:antialiased;
}

/* =========================
NOISE
========================= */

.noise,
.portal-noise{
  position:fixed;
  inset:0;

  pointer-events:none;

  opacity:.025;

  background-image:
    url("https://grainy-gradients.vercel.app/noise.svg");
}

/* =========================
BASE
========================= */

.container{
  width:min(92%, var(--max));
  margin:auto;
}

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

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

section{
  padding:100px 0;
}

/* =========================
PORTAL
========================= */

.portal{
  min-height:100vh;

  display:flex;
  align-items:center;
  justify-content:center;

  padding:50px 20px;
}

.portal-wrapper{
  width:min(1100px,100%);
}

.portal-top{
  text-align:center;
  margin-bottom:40px;
}

.portal-label{
  display:inline-flex;

  padding:10px 18px;

  border-radius:999px;

  background:rgba(255,255,255,.7);

  border:1px solid rgba(255,255,255,.8);

  backdrop-filter:blur(14px);

  font-size:.74rem;
  font-weight:700;

  text-transform:uppercase;
  letter-spacing:.14em;

  color:var(--navy);

  margin-bottom:22px;
}

.portal-top h1{
  font-size:clamp(2.6rem,8vw,5.8rem);

  line-height:.92;

  letter-spacing:-0.07em;

  color:var(--navy);

  margin-bottom:18px;
}

.portal-top h1 span{
  display:block;
  color:var(--mint-strong);
}

.portal-top p{
  max-width:720px;

  margin:auto;

  color:var(--muted);

  font-size:1rem;
}

.portal-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);

  gap:22px;
}

.portal-card{
  position:relative;

  overflow:hidden;

  min-height:320px;

  padding:38px;

  border-radius:36px;

  background:
    linear-gradient(
      145deg,
      rgba(255,255,255,.92),
      rgba(255,255,255,.72)
    );

  border:1px solid rgba(255,255,255,.9);

  backdrop-filter:blur(20px);

  box-shadow:var(--shadow);

  transition:
    transform .45s ease,
    box-shadow .45s ease;
}

.portal-card:hover{
  transform:
    translateY(-6px);

  box-shadow:var(--shadow-hover);
}

.portal-card::before{
  content:"";

  position:absolute;
  inset:0;

  background:
    radial-gradient(
      circle at top right,
      rgba(255,255,255,.5),
      transparent 40%
    );

  opacity:.7;
}

.portal-content{
  position:relative;
  z-index:2;
}

.portal-content span{
  color:var(--mint-strong);

  text-transform:uppercase;

  font-size:.75rem;
  font-weight:700;

  letter-spacing:.14em;
}

.portal-content h2{
  font-size:clamp(2.2rem,5vw,3.2rem);

  line-height:.95;

  margin:18px 0;

  color:var(--navy);
}

.portal-content p{
  color:var(--muted);

  max-width:420px;
}

.portal-arrow{
  margin-top:28px;

  font-weight:700;

  color:var(--navy);
}

/* =========================
HEADER
========================= */

.hero-header{
  position:relative;

  overflow:hidden;

  padding:120px 0 100px;

  background:
    linear-gradient(
      135deg,
      #101828,
      #1d2939
    );

  color:white;
}

.hero-gradient{
  position:absolute;
  inset:0;

  background:
    radial-gradient(circle at top right,
      rgba(255,255,255,.08),
      transparent 30%
    ),
    radial-gradient(circle at bottom left,
      rgba(125,211,199,.16),
      transparent 25%
    );
}

.hero{
  position:relative;
  z-index:2;

  display:grid;
  grid-template-columns:1fr .9fr;

  gap:60px;
  align-items:center;
}

.top-label{
  display:inline-flex;

  margin-bottom:28px;

  padding:10px 16px;

  border-radius:999px;

  background:rgba(255,255,255,.08);

  border:1px solid rgba(255,255,255,.10);

  font-size:.72rem;
  font-weight:700;

  text-transform:uppercase;
  letter-spacing:.14em;
}

.hero h1{
  font-size:clamp(3rem,8vw,6rem);

  line-height:.88;

  letter-spacing:-0.07em;

  margin-bottom:24px;
}

.hero p{
  color:rgba(255,255,255,.72);

  max-width:560px;

  line-height:1.9;
}

.glass-card,
.glass-organiza{
  background:
    linear-gradient(
      145deg,
      rgba(255,255,255,.10),
      rgba(255,255,255,.03)
    );

  border:1px solid rgba(255,255,255,.10);

  border-radius:32px;

  padding:38px;

  backdrop-filter:blur(20px);

  box-shadow:
    0 10px 40px rgba(0,0,0,.16);
}

/* =========================
BUTTONS
========================= */

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;

  min-height:52px;

  padding:0 26px;

  border-radius:999px;

  font-weight:700;

  transition:
    transform .3s ease,
    box-shadow .3s ease,
    background .3s ease;
}

.btn-primary{
  background:var(--mint-strong);

  color:white;

  box-shadow:
    0 8px 24px rgba(73,183,165,.22);
}

.btn-primary:hover{
  transform:translateY(-2px);

  box-shadow:
    0 14px 30px rgba(73,183,165,.20);
}

/* =========================
SECTIONS
========================= */

.section-head{
  display:flex;
  justify-content:space-between;
  align-items:end;

  gap:24px;

  margin-bottom:42px;
}

.section-head h2{
  font-size:clamp(2rem,4vw,2.6rem);

  line-height:1;

  letter-spacing:-0.05em;

  color:var(--navy);
}

.section-head span{
  max-width:420px;

  color:var(--muted);

  line-height:1.8;
}

.organiza,
.evento-mini{
  color:var(--mint-strong);

  text-transform:uppercase;

  font-size:.72rem;
  font-weight:700;

  letter-spacing:.14em;

  margin-bottom:10px;
}

.intro-text{
  background:
    linear-gradient(
      145deg,
      rgba(255,255,255,.88),
      rgba(255,255,255,.70)
    );

  border:1px solid rgba(255,255,255,.85);

  backdrop-filter:blur(20px);

  padding:40px;

  border-radius:34px;

  box-shadow:var(--shadow);
}

/* =========================
GRIDS
========================= */

.speakers,
.plans,
.info-grid{
  display:grid;
  gap:22px;
}

.speakers{
  grid-template-columns:repeat(2,1fr);
}

.plans{
  grid-template-columns:repeat(3,1fr);
}

.info-grid{
  grid-template-columns:repeat(4,1fr);
}

/* =========================
COMMON CARDS
========================= */

.speaker,
.plan,
.info-card{
  border-radius:30px;

  overflow:hidden;

  transition:
    transform .35s ease,
    box-shadow .35s ease;

  box-shadow:var(--shadow);
}

.speaker:hover,
.plan:hover,
.info-card:hover{
  transform:translateY(-4px);

  box-shadow:var(--shadow-hover);
}

/* =========================
SPEAKERS
========================= */

.speaker{
  background:
    linear-gradient(
      145deg,
      rgba(255,255,255,.92),
      rgba(255,255,255,.74)
    );

  border:1px solid rgba(255,255,255,.8);
}

.speaker-image{
  aspect-ratio:4/3;
  overflow:hidden;
}

.speaker-image img{
  height:100%;
  object-fit:cover;

  transition:1.2s ease;
}

.speaker:hover img{
  transform:scale(1.04);
}

.speaker-content{
  padding:28px;
}

.role{
  display:inline-flex;

  padding:8px 14px;

  border-radius:999px;

  background:rgba(125,211,199,.14);

  color:var(--mint-strong);

  font-size:.72rem;
  font-weight:700;

  text-transform:uppercase;
  letter-spacing:.12em;

  margin-bottom:14px;
}

/* =========================
EVENT PLANS
========================= */

.event-plans .plan{
  position:relative;

  padding:30px;

  background:
    linear-gradient(
      145deg,
      rgba(255,255,255,.92),
      rgba(255,255,255,.76)
    );

  border:1px solid rgba(255,255,255,.8);

  backdrop-filter:blur(18px);
}

/* estudiante */

.event-plans .gold{
  border-color:rgba(125,211,199,.22);
}

/* general */

.event-plans .silver{
  border-color:rgba(15,23,42,.08);
}

/* vip */

.event-plans .bronze{
  background:
    linear-gradient(
      145deg,
      #1a2234,
      #121926
    );

  color:white;

  border:1px solid rgba(255,255,255,.06);
}

.event-plans .bronze h3,
.event-plans .bronze .price,
.event-plans .bronze .benefits li,
.event-plans .bronze .plan-tag{
  color:white;
}

.event-plans .bronze .benefits li::before{
  background:var(--gold);
}

.event-plans .bronze .btn-primary{
  background:white;
  color:#121926;
}

/* =========================
SPONSOR PLANS
========================= */

.sponsor-plans .plan{
  position:relative;

  padding:32px;

  backdrop-filter:blur(20px);

  border:1px solid rgba(255,255,255,.7);
}

/* GOLD */

.sponsor-plans .gold{
  background:
    linear-gradient(
      145deg,
      rgba(255,248,225,.88),
      rgba(255,255,255,.74)
    );

  border-color:rgba(214,179,106,.18);
}

/* SILVER */

.sponsor-plans .silver{
  background:
    linear-gradient(
      145deg,
      rgba(255,255,255,.88),
      rgba(232,236,241,.72)
    );

  border-color:rgba(200,208,218,.24);
}

/* BRONZE */

.sponsor-plans .bronze{
  background:
    linear-gradient(
      145deg,
      rgba(163,122,98,.12),
      rgba(255,255,255,.76)
    );

  border-color:rgba(157,122,100,.18);
}

/* =========================
PLAN CONTENT
========================= */

.plan-tag{
  font-size:.72rem;
  font-weight:700;

  text-transform:uppercase;
  letter-spacing:.14em;

  margin-bottom:14px;

  color:var(--mint-strong);
}

.plan h3{
  font-size:1.5rem;

  line-height:1.1;

  color:var(--navy);

  margin-bottom:10px;
}

.price{
  font-size:2rem;
  font-weight:800;

  color:var(--navy);

  margin-bottom:18px;
}

.benefits{
  list-style:none;

  display:flex;
  flex-direction:column;

  gap:12px;

  margin-bottom:28px;
}

.benefits li{
  position:relative;

  padding-left:20px;

  color:var(--muted);

  font-size:.96rem;
}

.benefits li::before{
  content:"";

  position:absolute;

  left:0;
  top:10px;

  width:7px;
  height:7px;

  border-radius:50%;

  background:var(--mint-strong);
}

/* =========================
INFO CARDS
========================= */

.info-card{
  padding:26px;

  background:
    linear-gradient(
      145deg,
      rgba(255,255,255,.92),
      rgba(255,255,255,.74)
    );

  border:1px solid rgba(255,255,255,.82);
}

.info-card h4{
  color:var(--navy);

  margin-bottom:8px;
}

/* =========================
FOOTER
========================= */

footer{
  background:#101828;

  color:white;

  padding:70px 0;
}

.footer-grid p{
  color:rgba(255,255,255,.68);

  margin-top:10px;

  line-height:1.8;
}

/* =========================
MODALS
========================= */

.modal-overlay{
  position:fixed;
  inset:0;

  background:rgba(15,23,42,.55);

  backdrop-filter:blur(10px);

  display:flex;
  align-items:center;
  justify-content:center;

  padding:20px;

  opacity:0;
  pointer-events:none;

  transition:.3s ease;

  z-index:9999;
}

.modal-overlay.active{
  opacity:1;
  pointer-events:auto;
}

.modal{
  position:relative;

  width:min(900px,100%);

  max-height:92vh;

  overflow:hidden;

  border-radius:30px;

  background:
    linear-gradient(
      145deg,
      rgba(255,255,255,.94),
      rgba(255,255,255,.82)
    );

  border:1px solid rgba(255,255,255,.8);

  box-shadow:
    0 30px 80px rgba(0,0,0,.18);

  transform:translateY(12px);

  transition:.3s ease;
}

.modal-overlay.active .modal{
  transform:translateY(0);
}

.modal-header{
  padding:28px 30px 12px;
}

.modal-header h2{
  font-size:1.5rem;

  color:var(--navy);

  margin-bottom:8px;
}

.modal-header p{
  color:var(--muted);
}

.modal-body iframe{
  width:100%;
  height:78vh;

  border:none;
}

.modal-close{
  position:absolute;

  top:16px;
  right:16px;

  width:40px;
  height:40px;

  border:none;

  border-radius:50%;

  background:white;

  color:var(--navy);

  cursor:pointer;

  font-size:20px;
  font-weight:700;

  box-shadow:
    0 6px 20px rgba(0,0,0,.10);

  transition:.25s ease;
}

.modal-close:hover{
  transform:scale(1.05);
}

/* =========================
REVEAL
========================= */

.reveal{
  opacity:0;

  transform:
    translateY(24px);

  filter:blur(10px);

  transition:
    opacity .9s ease,
    transform .9s ease,
    filter .9s ease;
}

.reveal.active{
  opacity:1;

  transform:translateY(0);

  filter:blur(0);
}

/* =========================
RESPONSIVE
========================= */

@media(max-width:980px){

  section{
    padding:80px 0;
  }

  .hero,
  .portal-grid,
  .plans,
  .info-grid,
  .speakers{
    grid-template-columns:1fr;
  }

  .hero{
    gap:40px;
  }

  .hero-header{
    padding:100px 0 80px;
  }

  .glass-card,
  .glass-organiza{
    padding:30px;
  }
}

@media(max-width:720px){

  body{
    font-size:15px;
  }

  .container{
    width:min(94%, var(--max));
  }

  section{
    padding:65px 0;
  }

  .portal{
    padding:24px 14px;
  }

  .portal-card{
    min-height:auto;

    padding:28px;
  }

  .portal-top h1,
  .hero h1{
    font-size:2.8rem;
  }

  .hero-header{
    padding:90px 0 70px;
  }

  .hero{
    gap:30px;
  }

  .hero p{
    line-height:1.8;
  }

  .glass-card,
  .glass-organiza{
    padding:26px;
  }

  .section-head{
    flex-direction:column;
    align-items:flex-start;

    margin-bottom:30px;
  }

  .intro-text{
    padding:28px;
    border-radius:26px;
  }

  .speaker-content,
  .plan,
  .info-card{
    padding:24px;
  }

  .plan h3{
    font-size:1.35rem;
  }

  .price{
    font-size:1.8rem;
  }

  .benefits li{
    font-size:.92rem;
  }

  .btn{
    width:100%;

    min-height:50px;

    font-size:.94rem;
  }

  .modal{
    border-radius:24px;
  }

  .modal-header{
    padding:22px 22px 10px;
  }

  .modal-body iframe{
    height:72vh;
  }

  .modal-close{
    top:12px;
    right:12px;
  }
}

@media(max-width:480px){

  .portal-top h1,
  .hero h1{
    font-size:2.25rem;
  }

  .portal-content h2{
    font-size:2rem;
  }

  .top-label,
  .portal-label{
    font-size:.64rem;

    padding:8px 14px;
  }

  .portal-card,
  .plan,
  .speaker,
  .info-card{
    border-radius:24px;
  }

  .speaker-content,
  .plan,
  .info-card{
    padding:20px;
  }

  .benefits{
    gap:10px;
  }

  .benefits li{
    line-height:1.5;
  }

  .modal-body iframe{
    height:68vh;
  }
}