:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #eef3ff;
  --text: #102033;
  --muted: #66748a;
  --primary: #2563eb;
  --secondary: #7c3aed;
  --accent: #06b6d4;
  --dark: #0f172a;
  --radius: 28px;
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 0%, rgba(37, 99, 235, 0.16), transparent 28%),
    radial-gradient(circle at 90% 10%, rgba(124, 58, 237, 0.14), transparent 30%),
    var(--bg);
  line-height: 1.6;
}

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(244, 247, 251, 0.82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.navbar {
  width: min(1120px, 90%);
  min-height: 82px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--dark);
  text-decoration: none;
  font-weight: 900;
  font-size: 1.35rem;
  letter-spacing: -0.04em;
}

.brand span span {
  color: var(--primary);
}

.brand-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
}

.brand-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.nav-menu {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-menu a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
}

.nav-menu a:hover {
  color: var(--primary);
}

.btn-small,
.btn-primary,
.btn-outline {
  border: 0;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
  transition: 0.25s ease;
}

.btn-small,
.btn-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.26);
}

.btn-small {
  padding: 11px 18px;
}

.btn-primary,
.btn-outline {
  padding: 15px 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-outline {
  color: var(--primary);
  background: #ffffff;
  border: 1px solid rgba(37, 99, 235, 0.18);
}

.btn-small:hover,
.btn-primary:hover,
.btn-outline:hover {
  transform: translateY(-3px);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 14px;
  color: var(--dark);
  background: #ffffff;
  font-size: 1.25rem;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.08);
}

.hero {
  width: min(1450px, 94%);
  margin: auto;
  padding: 56px 0 80px;
}

.hero-panel {
  position: relative;
  overflow: hidden;
  min-height: 610px;
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  align-items: center;
  gap: 28px;
  padding: 54px;
  border-radius: 40px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(238, 243, 255, 0.92)),
    linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: var(--shadow);
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: auto -120px -160px auto;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.16), rgba(6, 182, 212, 0.18));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 900;
  margin-bottom: 14px;
}

.hero h1 {
  max-width: 640px;
  font-size: clamp(2.6rem, 6vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.08em;
  color: var(--dark);
  margin-bottom: 22px;
}

.hero-text {
  max-width: 590px;
  color: var(--muted);
  font-size: 1.08rem;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  max-width: 520px;
}

.hero-stats div {
  padding: 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.hero-stats strong {
  display: block;
  font-size: 1.6rem;
  color: var(--dark);
}

.hero-stats span {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.visual-card {
  position: relative;
  height: 440px;
  border-radius: 34px;
  background: linear-gradient(160deg, #101a36, #162557 55%, #2563eb);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12), 0 28px 70px rgba(37, 99, 235, 0.3);
  overflow: hidden;
}

.visual-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle, black 35%, transparent 75%);
}

.orbit {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
}

.orbit-one {
  width: 330px;
  height: 330px;
  top: 54px;
  left: 55px;
}

.orbit-two {
  width: 235px;
  height: 235px;
  top: 100px;
  left: 104px;
}

.main-chip {
  position: absolute;
  top: 160px;
  left: 50%;
  transform: translateX(-50%);
  width: 155px;
  height: 155px;
  border-radius: 38px;
  display: grid;
  place-items: center;
  text-align: center;
  color: #ffffff;
  font-weight: 900;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.96), rgba(124, 58, 237, 0.96));
  box-shadow: 0 22px 45px rgba(6, 182, 212, 0.28);
}

.main-chip i {
  display: block;
  font-size: 4rem;
}

.main-chip span {
  font-size: 0.82rem;
}

.floating-card {
  position: absolute;
  padding: 12px 14px;
  border-radius: 18px;
  color: #ffffff;
  font-weight: 900;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(10px);
}

.card-code { top: 70px; right: 34px; }
.card-lock { bottom: 70px; right: 46px; }
.card-brain { bottom: 95px; left: 38px; }

.section {
  width: min(1450px, 94%);
  margin: auto;
  padding: 78px 0;
}

.section-heading {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 42px;
}

.section-heading h2,
.info-card h2 {
  color: var(--dark);
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.05em;
  margin-bottom: 16px;
}

.section-heading p,
.info-card p {
  color: var(--muted);
}

.speaker-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.speaker-card {
  overflow: hidden;
  border-radius: 30px;
  background: var(--surface);
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
  transition: 0.25s ease;
}

.speaker-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 26px 60px rgba(15, 23, 42, 0.13);
}

.speaker-card.featured {
  transform: translateY(-18px);
}

.speaker-card.featured:hover {
  transform: translateY(-26px);
}

.speaker-photo {
  min-height: 230px;
  display: grid;
  place-items: center;
  color: #ffffff;
  font-size: 5.6rem;
}
.speaker-photo img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  display: block;
}

.photo-ai { background: linear-gradient(135deg, #2563eb, #06b6d4); }
.photo-cyber { background: linear-gradient(135deg, #7c3aed, #2563eb); }
.photo-dev { background: linear-gradient(135deg, #0f172a, #2563eb); }

.speaker-content {
  padding: 24px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 11px;
  border-radius: 999px;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.09);
  font-size: 0.78rem;
  font-weight: 900;
  margin-bottom: 16px;
}

.speaker-content h3 {
  font-size: 1.35rem;
  color: var(--dark);
  margin-bottom: 9px;
}

.speaker-content p {
  color: var(--muted);
  font-size: 0.95rem;
}

.speaker-icons {
  margin-top: 18px;
  display: flex;
  gap: 12px;
  color: var(--primary);
  font-size: 1.25rem;
}

.inscription {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 24px;
  align-items: stretch;
}

.inscription-card {
  border-radius: 34px;
  background: var(--surface);
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: var(--shadow);
}

.info-card {
  padding: 38px;
  background:
    radial-gradient(circle at 100% 0%, rgba(37, 99, 235, 0.14), transparent 35%),
    #ffffff;
}

.mini-list {
  margin-top: 26px;
  display: grid;
  gap: 12px;
}

.mini-list span {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--dark);
  font-weight: 800;
}

.mini-list i {
  color: var(--accent);
}

.form {
  padding: 34px;
}

.form label {
  display: block;
  color: var(--dark);
  font-weight: 900;
  margin-bottom: 8px;
}

.form input,
.form select {
  width: 100%;
  padding: 15px 16px;
  margin-bottom: 18px;
  border: 1px solid rgba(15, 23, 42, 0.13);
  border-radius: 16px;
  background: #f8fafc;
  color: var(--text);
  outline: none;
  font: inherit;
}

.form input:focus,
.form select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.full {
  width: 100%;
}

.footer {
  margin-top: 70px;
  padding: 44px 0 26px;
  background: var(--dark);
  color: #ffffff;
}

.footer-content {
  width: min(1120px, 90%);
  margin: auto;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.footer h3 {
  font-size: 1.35rem;
  margin-bottom: 8px;
}

.footer p {
  color: #cbd5e1;
}

.socials {
  display: flex;
  gap: 13px;
}

.socials a {
  width: 43px;
  height: 43px;
  display: grid;
  place-items: center;
  color: #ffffff;
  text-decoration: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transition: 0.25s ease;
}

.socials a:hover {
  transform: translateY(-4px);
  background: var(--primary);
}

.copyright {
  width: min(1120px, 90%);
  margin: 24px auto 0;
  padding-top: 22px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .btn-small {
    display: none;
  }

  .hero-panel,
  .inscription {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    padding: 38px;
    gap: 0;
  }

  .hero-info {
    display: contents;
  }

  .hero-image {
    order: 3;
    margin-bottom: 28px;
  }

  .hero-stats {
    order: 4;
  }

  .visual-card {
    height: 360px;
  }

  .speaker-grid {
    grid-template-columns: 1fr 1fr;
  }

  .speaker-card.featured {
    transform: none;
  }
}

@media (max-width: 760px) {
  .menu-toggle {
    display: grid;
    place-items: center;
  }

  .nav-menu {
    position: absolute;
    top: 82px;
    left: 5%;
    right: 5%;
    display: none;
    flex-direction: column;
    padding: 22px;
    border-radius: 22px;
    background: #ffffff;
    box-shadow: var(--shadow);
  }

  .nav-menu.active {
    display: flex;
  }

  .hero {
    padding-top: 32px;
  }

  .hero-panel {
    min-height: auto;
    padding: 28px;
    border-radius: 30px;
  }

  .hero h1 {
    font-size: 2.55rem;
  }

  .hero-actions {
    display: grid;
  }

  .hero-stats,
  .speaker-grid {
    grid-template-columns: 1fr;
  }

  .visual-card {
    height: 310px;
  }

  .main-chip {
    width: 125px;
    height: 125px;
    top: 96px;
  }

  .main-chip i {
    font-size: 3rem;
  }

  .floating-card {
    font-size: 0.85rem;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

#inscripcion {
  scroll-margin-top: 120px;
}

.hero-image {
  height: 440px;
  border-radius: 34px;
  overflow: hidden;
  box-shadow: 0 28px 70px rgba(37, 99, 235, 0.3);
}

.hero-image img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.brand-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 12px;
}