:root {
  --bg: #070a12;
  --text: #f7fbff;
  --muted: rgba(247, 251, 255, .72);
  --line: rgba(255, 255, 255, .16);
  --glass: rgba(10, 14, 26, .52);
  --glow: rgba(87, 224, 255, .28);
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px;
  background:
    radial-gradient(circle at 50% 35%, rgba(75, 208, 255, .18), transparent 32%),
    linear-gradient(135deg, rgba(5, 8, 18, .64), rgba(5, 8, 18, .90)),
    url("assets/fondo.jpg") center center / cover no-repeat fixed;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  backdrop-filter: blur(2px);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 8% 7% 8%;
  height: 38%;
  z-index: -1;
  background: radial-gradient(ellipse at center, var(--glow), transparent 68%);
  filter: blur(46px);
}

.noise {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .12;
  background-image: repeating-radial-gradient(circle at 0 0, rgba(255,255,255,.35) 0 1px, transparent 1px 4px);
  mix-blend-mode: overlay;
}

.card {
  width: min(720px, 100%);
  padding: clamp(34px, 6vw, 70px);
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 34px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.04)),
    var(--glass);
  box-shadow: 0 30px 100px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.16);
  backdrop-filter: blur(22px) saturate(135%);
  animation: enter .85s ease both;
}

.logo-wrap {
  width: clamp(140px, 24vw, 210px);
  height: clamp(140px, 24vw, 210px);
  margin: 0 auto 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.14), rgba(255,255,255,.03) 65%, transparent 66%);
  filter: drop-shadow(0 20px 32px rgba(0,0,0,.38));
}

.logo {
  width: 100%;
  max-height: 100%;
  object-fit: contain;
  animation: float 4.8s ease-in-out infinite;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  margin: 0 0 14px;
  padding: 7px 14px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 999px;
  color: var(--muted);
  font-size: .9rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  background: rgba(255,255,255,.06);
}

h1 {
  margin: 0;
  font-size: clamp(3rem, 10vw, 7.5rem);
  line-height: .92;
  letter-spacing: -.08em;
  text-wrap: balance;
}

.subtitle {
  width: min(520px, 100%);
  margin: 20px auto 34px;
  color: var(--muted);
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  line-height: 1.55;
}

.kick-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 210px;
  min-height: 58px;
  padding: 0 28px;
  border-radius: 999px;
  color: #071012;
  font-weight: 800;
  text-decoration: none;
  background: linear-gradient(135deg, #ffffff, #65f4ff 50%, #7cffb8);
  box-shadow: 0 18px 45px rgba(101, 244, 255, .22), inset 0 1px 0 rgba(255,255,255,.75);
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}

.kick-button:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 24px 60px rgba(101, 244, 255, .32), inset 0 1px 0 rgba(255,255,255,.85);
  filter: saturate(1.08);
}

.kick-button:active { transform: translateY(-1px) scale(.99); }

@keyframes enter {
  from { opacity: 0; transform: translateY(18px) scale(.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

@media (max-width: 600px) {
  .hero { padding: 18px; background-attachment: scroll; }
  .card { border-radius: 26px; }
  .subtitle { margin-bottom: 28px; }
  .kick-button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}