:root {
  color-scheme: dark;
  --ink: #f6f1e7;
  --muted: #b8c0c7;
  --line: rgba(246, 241, 231, 0.18);
  --panel: rgba(12, 18, 30, 0.68);
  --panel-strong: rgba(14, 21, 34, 0.88);
  --accent: #72f2c8;
  --accent-2: #ffca5f;
  --accent-3: #ff6f91;
  --shadow: rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 14% 18%, rgba(114, 242, 200, 0.2), transparent 26rem),
    radial-gradient(circle at 78% 28%, rgba(255, 111, 145, 0.18), transparent 24rem),
    linear-gradient(140deg, #090d14 0%, #111827 48%, #1f2330 100%);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

#sky {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.shell {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 64px) 0 48px;
  display: grid;
  align-content: center;
  gap: clamp(32px, 6vw, 72px);
}

.hero {
  width: min(1080px, 100%);
  padding-top: min(8vh, 80px);
}

.eyebrow {
  width: fit-content;
  max-width: 100%;
  margin: 0 0 18px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(9, 13, 20, 0.54);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 100%;
  margin: 0;
  overflow-wrap: anywhere;
  font-size: clamp(3.2rem, 8.6vw, 6.9rem);
  line-height: 0.9;
  letter-spacing: 0;
  text-wrap: balance;
}

.intro {
  max-width: 650px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.32rem);
  line-height: 1.6;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(246, 241, 231, 0.08);
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 12px 30px var(--shadow);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(114, 242, 200, 0.62);
  background: rgba(114, 242, 200, 0.12);
}

.button.primary {
  border-color: transparent;
  background: var(--accent);
  color: #07110e;
}

.tiles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.tile {
  min-height: 180px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 40px var(--shadow);
  backdrop-filter: blur(18px);
}

.tile-mark {
  color: var(--accent-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8rem;
  font-weight: 800;
}

.tile h2 {
  margin: 34px 0 10px;
  font-size: 1.25rem;
}

.tile p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.spark-button {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 2;
  width: 54px;
  height: 54px;
  border: 1px solid rgba(246, 241, 231, 0.28);
  border-radius: 999px;
  background: var(--panel-strong);
  color: var(--accent-2);
  font: 800 1.7rem/1 ui-sans-serif, system-ui, sans-serif;
  box-shadow: 0 16px 36px var(--shadow);
  cursor: pointer;
}

.spark-button:hover,
.spark-button:focus-visible {
  outline: none;
  border-color: rgba(255, 202, 95, 0.72);
  transform: rotate(8deg) scale(1.03);
}

@media (max-width: 760px) {
  .shell {
    align-content: start;
  }

  h1 {
    white-space: nowrap;
    font-size: clamp(2.65rem, 12.2vw, 4.8rem);
  }

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

  .tile {
    min-height: 144px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}