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

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: linear-gradient(135deg, #0d2440, #1f7ae5) fixed;
}

/* Subtle moving light layer for a premium background feel */
body::before {
  content: "";
  position: fixed;
  inset: -20%;
  pointer-events: none;
  background:
    radial-gradient(
      circle at 25% 30%,
      rgba(255, 255, 255, 0.11),
      transparent 55%
    ),
    radial-gradient(
      circle at 75% 70%,
      rgba(255, 255, 255, 0.07),
      transparent 58%
    );
  animation: bgDrift 12s ease-in-out infinite alternate;
}

.splash {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 760px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.logo-frame {
  position: relative;
  width: min(360px, 78vw);
  padding: 16px 18px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.82);
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.86),
    rgba(255, 255, 255, 0.62)
  );
  box-shadow:
    0 18px 36px rgba(8, 26, 48, 0.34),
    inset 0 0 0 1px rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(8px);
  opacity: 0;
  transform: scale(0.94);
  animation: frameSequence 3.5s ease-in-out forwards;
}

/* Soft light halo to separate logo from dark/bright gradient areas */
.logo-frame::before {
  content: "";
  position: absolute;
  inset: -18px;
  z-index: -1;
  border-radius: 30px;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.5),
    rgba(255, 255, 255, 0.12) 62%,
    transparent 78%
  );
  filter: blur(6px);
}

.logo {
  width: 100%;
  opacity: 0;
  transform: scale(0.9);
  filter: drop-shadow(0 14px 26px rgba(0, 0, 0, 0.35));
  /* 1.5s fade in + 1s hold + 1s fade out */
  animation: logoSequence 3.5s ease-in-out forwards;
}

.brand-text {
  margin-top: 18px;
  color: #eaf3ff;
  font-size: clamp(1.3rem, 3.4vw, 2.1rem);
  font-weight: 600;
  letter-spacing: 0.32em;
  opacity: 0;
  transform: translateY(14px);
  text-shadow:
    0 0 10px rgba(255, 255, 255, 0.28),
    0 0 22px rgba(199, 224, 255, 0.24);
  animation: textSequence 3.5s ease forwards;
}

@keyframes logoSequence {
  0% {
    opacity: 0;
    transform: scale(0.9);
  }
  43% {
    opacity: 1;
    transform: scale(1);
  }
  71% {
    opacity: 1;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(1.03);
  }
}

@keyframes frameSequence {
  0% {
    opacity: 0;
    transform: scale(0.94);
  }
  43% {
    opacity: 1;
    transform: scale(1);
  }
  71% {
    opacity: 1;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(1.02);
  }
}

@keyframes textSequence {
  0% {
    opacity: 0;
    transform: translateY(14px);
    letter-spacing: 0.38em;
  }
  38% {
    opacity: 1;
    transform: translateY(0);
    letter-spacing: 0.32em;
  }
  71% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(-4px);
  }
}

@keyframes bgDrift {
  0% {
    transform: translate3d(-2%, -1%, 0) scale(1);
  }
  100% {
    transform: translate3d(2%, 1%, 0) scale(1.05);
  }
}