:root {
  --bg: #ffffff;
  --fg: #0b0b0c;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  touch-action: pan-x pan-y;
}

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font-family: "Satoshi", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 500;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Stepped blur gradient, anchored to the bottom -------------------- */

.field {
  position: fixed;
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
  left: 0;
  bottom: -6vh;
  width: 100%;
  height: 50vh;
  z-index: 0;
  filter: blur(2vh) saturate(115%);
  transform: translateZ(0);
  will-change: filter;
}

.field::after {
  content: "";
  position: absolute;
  inset: -6vh -2vw 0 -2vw;
  background-image: url(".assets/.backround/Backround_desktop.svg");
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
}

/* --- Center content --------------------------------------------------- */

.stage {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem;
  transform: translateY(-8vh);
}

.logo {
  display: block;
  width: 9vw;
  height: auto;
  animation: rise 1.2s var(--ease) both;
}

.title {
  margin-top: 0.9vw;
  font-size: 2vw;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
  animation: rise 1.2s var(--ease) 0.12s both;
}

/* --- Motion ----------------------------------------------------------- */

@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .logo, .title { animation: none !important; }
}

@media (max-width: 640px) {
  .field {
    height: 50vh;
    filter: blur(1.4vh) saturate(115%);
  }
  .field::after {
    background-image: url(".assets/.backround/Backround_mobile.svg");
    background-size: 100% 100%;
  }
  .logo { width: 40vw; }
  .title { margin-top: 2.8vw; font-size: 7.5vw; }
  .stage { transform: translateY(-6vh); }
}