:root {
  --font-body: "Mulish", sans-serif;
  --font-title: "Luckiest Guy", cursive;
  --gradient-primary: linear-gradient(90deg, rgb(28, 20, 63), rgb(40, 160, 253));
  --gradient-surface:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.18), transparent 34%),
    linear-gradient(160deg, #0a4a59 0%, #1068c2 42%, #23d1ff 100%);
  --bg-button-texture:
    linear-gradient(330deg, rgba(225, 225, 225, 0.05) 0%, rgba(225, 225, 225, 0.05) 33.333%, rgba(114, 114, 114, 0.05) 33.333%, rgba(114, 114, 114, 0.05) 66.666%, rgba(52, 52, 52, 0.05) 66.666%, rgba(52, 52, 52, 0.05) 99.999%),
    linear-gradient(66deg, rgba(181, 181, 181, 0.05) 0%, rgba(181, 181, 181, 0.05) 33.333%, rgba(27, 27, 27, 0.05) 33.333%, rgba(27, 27, 27, 0.05) 66.666%, rgba(251, 251, 251, 0.05) 66.666%, rgba(251, 251, 251, 0.05) 99.999%),
    linear-gradient(225deg, rgba(98, 98, 98, 0.05) 0%, rgba(98, 98, 98, 0.05) 33.333%, rgba(222, 222, 222, 0.05) 33.333%, rgba(222, 222, 222, 0.05) 66.666%, rgba(228, 228, 228, 0.05) 66.666%, rgba(228, 228, 228, 0.05) 99.999%);
  --color-white: #fff;
  --color-text-soft: rgba(255, 255, 255, 0.86);
  --shadow-card: 0 24px 60px rgba(5, 25, 46, 0.28);
  --shadow-button: 0 12px 24px rgba(17, 24, 39, 0.22);
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-white);
  background: var(--gradient-surface);
}

.landing-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.hero-card {
  width: min(100%, 560px);
  padding: 32px 24px;
  border-radius: 32px;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.24), transparent 28%),
    rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-card);
  text-align: center;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.78);
}

.main-title {
  margin: 0;
  font-family: var(--font-title);
  font-size: clamp(42px, 11vw, 64px);
  color: var(--color-white);
  text-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);
}

.subtitle {
  margin: 18px auto 0;
  max-width: 32ch;
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--color-text-soft);
}

.button-stack {
  margin-top: 32px;
  display: grid;
  gap: 14px;
}

.mode-button {
  display: block;
  padding: 18px 18px 16px;
  border-radius: 22px;
  text-decoration: none;
  color: var(--color-white);
  box-shadow: var(--shadow-button);
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.mode-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 28px rgba(17, 24, 39, 0.24);
}

.mode-button.primary {
  background-image: var(--bg-button-texture), var(--gradient-primary);
}

.mode-button.secondary {
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.08)),
    rgba(15, 23, 42, 0.42);
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.button-title {
  display: block;
  font-size: 1.08rem;
  font-weight: 800;
}

.button-copy {
  display: block;
  margin-top: 6px;
  font-size: 0.94rem;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.82);
}

@media (max-width: 480px) {
  .hero-card {
    padding: 28px 18px;
    border-radius: 26px;
  }

  .subtitle {
    font-size: 0.98rem;
  }

  .mode-button {
    padding: 16px;
  }
}