:root {
  --bg: #06101d;
  --bg-2: #0b1626;
  --text: #edf4ff;
  --muted: #a8b6d0;
  --accent: #26f2b6;
  --accent-2: #6cb7ff;
  --line: rgba(255,255,255,0.08);
  --shadow: 0 28px 80px rgba(0,0,0,0.38);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  font-family: "Inter", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(38,242,182,0.08), transparent 28%),
    radial-gradient(circle at bottom right, rgba(108,183,255,0.09), transparent 30%),
    linear-gradient(180deg, #06101d 0%, #0a1220 100%);
  color: var(--text);
  overflow: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

.app-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.app-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(18px);
  opacity: 0.5;
  animation: drift 12s ease-in-out infinite;
}

.app-orb-1 {
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(38,242,182,0.22), transparent 70%);
  left: -60px;
  top: -40px;
}

.app-orb-2 {
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(108,183,255,0.18), transparent 70%);
  right: -80px;
  bottom: -100px;
}

.app-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.25;
  mask-image: radial-gradient(circle at center, black 30%, transparent 85%);
}

@keyframes drift {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(18px); }
}

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-top {
  height: 74px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 12, 22, 0.58);
  backdrop-filter: blur(16px);
}

.back-home {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 16px;
  border-radius: 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.07);
  color: #edf4ff;
  font-weight: 700;
}

.app-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.app-brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: #07161e;
  background: linear-gradient(135deg, var(--accent), #8dffdc);
  box-shadow: 0 10px 26px rgba(38,242,182,0.22);
}

.app-main {
  position: relative;
  flex: 1;
}

.loading-scene,
.iframe-wrap {
  position: absolute;
  inset: 0;
}

.loading-scene {
  display: grid;
  place-items: center;
  padding: 20px;
  transition: 0.6s ease;
  z-index: 2;
}

.loading-scene.hide {
  opacity: 0;
  visibility: hidden;
  transform: scale(1.02);
}

.loading-card {
  width: min(100%, 780px);
  border-radius: 30px;
  padding: 34px;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.ring-wrap {
  width: 180px;
  height: 180px;
  margin: 0 auto 26px;
  position: relative;
}

.ring {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.1);
}

.ring-one {
  border-top-color: var(--accent);
  animation: spin 4s linear infinite;
}

.ring-two {
  inset: 16px;
  border-right-color: var(--accent-2);
  animation: spinReverse 3.6s linear infinite;
}

.ring-three {
  inset: 34px;
  border-bottom-color: #90ffe1;
  animation: spin 2.8s linear infinite;
}

.core-dot {
  position: absolute;
  inset: 66px;
  border-radius: 50%;
  background: radial-gradient(circle, #c9fff0 0%, var(--accent) 55%, transparent 100%);
  box-shadow: 0 0 24px rgba(38,242,182,0.5);
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes spinReverse {
  from { transform: rotate(360deg); }
  to { transform: rotate(0deg); }
}
@keyframes pulse {
  0%, 100% { transform: scale(0.92); opacity: 0.9; }
  50% { transform: scale(1.06); opacity: 1; }
}

.loader-tag {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #d9fff4;
  background: rgba(38,242,182,0.12);
  border: 1px solid rgba(38,242,182,0.2);
}

.loading-copy h1 {
  margin: 18px 0 14px;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.loading-copy p {
  margin: 0 auto;
  max-width: 620px;
  color: var(--muted);
  line-height: 1.85;
  font-size: 1rem;
}

.loader-steps {
  margin-top: 28px;
  display: grid;
  gap: 12px;
}

.step {
  min-height: 56px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
  border-radius: 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  color: #dce8fb;
  font-weight: 700;
}

.step span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
}

.step.active span {
  background: var(--accent);
  box-shadow: 0 0 14px var(--accent);
}

.iframe-wrap {
  opacity: 0;
  transform: scale(1.015);
  transition: 0.6s ease;
}

.iframe-wrap.show {
  opacity: 1;
  transform: scale(1);
}

.iframe-wrap iframe {
  width: 100%;
  height: 100%;
  border: 0;
  background: #050a14;
}

@media (max-width: 768px) {
  .app-top {
    padding: 0 12px;
    height: 68px;
  }

  .back-home {
    min-height: 42px;
    padding: 0 14px;
    font-size: 0.92rem;
  }

  .loading-card {
    padding: 24px 18px;
    border-radius: 24px;
  }

  .ring-wrap {
    width: 150px;
    height: 150px;
  }

  .core-dot {
    inset: 56px;
  }

  .loading-copy p {
    font-size: 0.95rem;
  }

  .step {
    min-height: 52px;
    font-size: 0.93rem;
  }
}