:root {
  --bg: #f5f5f7;
  --panel: rgba(255, 255, 255, 0.72);
  --line: rgba(15, 23, 42, 0.08);
  --text: #111111;
  --muted: #6b7280;
  --glow-blue: rgba(121, 169, 255, 0.26);
  --glow-green: rgba(173, 234, 181, 0.2);
  --shadow: 0 24px 80px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  min-height: 100vh;
  font-family: "Noto Sans SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 22%, var(--glow-blue), transparent 28%),
    radial-gradient(circle at 82% 78%, var(--glow-green), transparent 24%),
    linear-gradient(180deg, #fbfbfc 0%, var(--bg) 100%);
}

.stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
  overflow: hidden;
}

.glow {
  position: absolute;
  width: 34rem;
  height: 34rem;
  border-radius: 50%;
  filter: blur(56px);
  opacity: 0.72;
  pointer-events: none;
}

.glow--left {
  left: -12rem;
  top: -12rem;
  background: var(--glow-blue);
}

.glow--right {
  right: -10rem;
  bottom: -14rem;
  background: var(--glow-green);
}

.hero {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
  padding: clamp(36px, 7vw, 72px);
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 32px;
  background: var(--panel);
  backdrop-filter: blur(24px);
  box-shadow: var(--shadow);
}

.hero__eyebrow {
  margin: 0 0 18px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.24em;
  color: var(--muted);
}

.hero h1 {
  margin: 0;
  font-size: clamp(3rem, 12vw, 7.2rem);
  line-height: 0.95;
  font-weight: 700;
  letter-spacing: -0.08em;
}

.hero__age {
  margin: 22px 0 0;
  font-size: clamp(1rem, 3vw, 1.35rem);
  line-height: 1.7;
  color: var(--muted);
}

@media (max-width: 640px) {
  .stage {
    padding: 16px;
  }

  .hero {
    border-radius: 24px;
    padding: 32px 22px;
  }

  .hero__eyebrow {
    margin-bottom: 14px;
    letter-spacing: 0.18em;
  }

  .glow {
    width: 22rem;
    height: 22rem;
    filter: blur(42px);
  }
}