:root {
  --bg-1: #090f1d;
  --bg-2: #0f1e34;
  --text: #f3f8ff;
  --accent-1: #6df7c1;
  --accent-2: #4ac6ff;
  --glass: rgba(255, 255, 255, 0.09);
  --glass-line: rgba(255, 255, 255, 0.28);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  color: var(--text);
  font-family: "Space Grotesk", "IBM Plex Sans", "Trebuchet MS", sans-serif;
  background:
    linear-gradient(135deg, var(--bg-1), var(--bg-2));
}

.ambient {
  position: fixed;
  border-radius: 999px;
  filter: blur(34px);
  opacity: 0.65;
  pointer-events: none;
}

.ambient-a {
  width: min(50vw, 520px);
  height: min(50vw, 520px);
  left: -10vw;
  top: -12vh;
  background: radial-gradient(circle, #4c8dff 0%, transparent 70%);
  animation: driftA 12s ease-in-out infinite alternate;
}

.ambient-b {
  width: min(60vw, 620px);
  height: min(60vw, 620px);
  right: -16vw;
  bottom: -20vh;
  background: radial-gradient(circle, #00a6ff 0%, transparent 72%);
  animation: driftB 14s ease-in-out infinite alternate;
}

.ambient-c {
  width: min(42vw, 460px);
  height: min(42vw, 460px);
  left: 45vw;
  top: 32vh;
  background: radial-gradient(circle, #00e79b 0%, transparent 72%);
  animation: driftC 15s ease-in-out infinite alternate;
}

.shell {
  position: relative;
  z-index: 3;
  width: min(760px, 90vw);
  margin: 0 auto;
  min-height: 100%;
  display: grid;
  place-content: center;
  gap: 22px;
}

.brand {
  margin: 0;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(243, 248, 255, 0.78);
  font-size: 0.78rem;
}

.title {
  margin: 0;
  font-size: clamp(2.5rem, 10vw, 7rem);
  line-height: 0.92;
  font-weight: 700;
  text-transform: lowercase;
  text-wrap: balance;
}

.cta {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  border-radius: 999px;
  text-decoration: none;
  color: #062124;
  background: linear-gradient(100deg, var(--accent-1), var(--accent-2));
  border: 1px solid rgba(255, 255, 255, 0.35);
  font-weight: 700;
  letter-spacing: 0.01em;
  box-shadow: 0 8px 32px rgba(34, 204, 255, 0.34);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.arrow {
  display: inline-block;
  font-weight: 800;
}

.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(34, 204, 255, 0.45);
}

.cta:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.82);
  outline-offset: 3px;
}

@keyframes driftA {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(8vw, 6vh) scale(1.12); }
}

@keyframes driftB {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-7vw, -7vh) scale(1.08); }
}

@keyframes driftC {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-6vw, 8vh) scale(1.15); }
}

@media (max-width: 720px) {
  .shell {
    gap: 16px;
  }

  .title {
    font-size: clamp(2.2rem, 16vw, 4rem);
  }

  .cta {
    padding: 12px 18px;
    font-size: 0.95rem;
  }
}