.glossy-room-shell {
  padding: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.glossy-room-card,
.glossy-usage-card {
  position: relative;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.9) 48%, rgba(255, 255, 255, 0.82) 100%);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.16);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  overflow: visible;
}

.glossy-room-card::before,
.glossy-usage-card::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.62) 0%, rgba(255, 255, 255, 0.14) 22%, rgba(255, 255, 255, 0) 48%);
  pointer-events: none;
}

.glossy-room-card {
  margin-bottom: 2rem;
}

.glossy-room-header,
.glossy-usage-header {
  position: relative;
  color: white;
  padding: 2rem;
  text-align: center;
  border-radius: 24px 24px 0 0;
  background: var(--glossy-theme-gradient, linear-gradient(135deg, #166534 0%, #22c55e 100%));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28);
  overflow: hidden;
}

.glossy-room-header::before,
.glossy-usage-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.34) 0%, rgba(255, 255, 255, 0.08) 28%, rgba(255, 255, 255, 0) 56%),
    radial-gradient(circle at 50% -20%, rgba(255, 255, 255, 0.42) 0%, rgba(255, 255, 255, 0) 48%);
  pointer-events: none;
}

.glossy-room-header h1,
.glossy-usage-header h5 {
  position: relative;
  margin: 0;
  text-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
}

.glossy-room-body,
.glossy-usage-body {
  position: relative;
  padding: 2rem;
}

.glossy-surface {
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.86) 0%, rgba(249, 250, 251, 0.92) 100%);
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 18px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72), 0 12px 28px rgba(15, 23, 42, 0.08);
  padding: 1.5rem;
}

.glossy-demo-panel {
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.74) 0%, rgba(249, 250, 251, 0.9) 100%);
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 18px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.68), 0 12px 24px rgba(15, 23, 42, 0.08);
}

.glossy-demo-item {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.96) 0%, rgba(248, 250, 252, 0.88) 100%);
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.07);
}

.glossy-action-btn {
  background: var(--glossy-theme-gradient, linear-gradient(135deg, #166534 0%, #22c55e 100%));
  box-shadow: 0 12px 24px var(--glossy-shadow, rgba(22, 101, 52, 0.24));
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.glossy-action-btn:hover {
  transform: translateY(-1px);
  filter: saturate(1.04);
  box-shadow: 0 16px 28px var(--glossy-shadow-strong, rgba(22, 101, 52, 0.3));
}

.glossy-muted-btn {
  background: linear-gradient(145deg, #e5e7eb 0%, #d1d5db 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.glossy-tab-track {
  background: linear-gradient(145deg, rgba(229, 231, 235, 0.88) 0%, rgba(209, 213, 219, 0.92) 100%);
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.08);
}

.operation-intro {
  margin-bottom: 1.5rem;
  padding: 1.1rem 1.25rem;
  border: 1px solid rgba(226, 232, 240, 0.86);
  border-radius: 16px;
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.78) 0%, rgba(248, 250, 252, 0.88) 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7), 0 10px 22px rgba(15, 23, 42, 0.06);
}

.operation-intro__title {
  margin: 0 0 0.5rem;
  color: #374151;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
}

.operation-intro__text {
  margin: 0;
  color: #4b5563;
  line-height: 1.7;
}

.operation-intro__points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.85rem 0 0;
  padding: 0;
  list-style: none;
}

.operation-intro__point {
  padding: 0.35rem 0.7rem;
  border: 1px solid rgba(209, 213, 219, 0.78);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: #4b5563;
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.4;
}

.glossy-spinner-overlay {
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

@media (max-width: 767.98px) {
  .glossy-room-shell {
    padding: 1rem 0.25rem !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  .glossy-room-header,
  .glossy-usage-header {
    padding: 1.5rem 0.75rem !important;
    border-radius: 20px 20px 0 0 !important;
  }

  .glossy-room-body,
  .glossy-usage-body {
    padding: 1.25rem 0.5rem !important;
  }

  .glossy-surface {
    padding: 1rem 0.75rem !important;
  }

  .operation-intro {
    margin-bottom: 1rem;
    padding: 1rem 0.85rem;
  }

  .operation-intro__points {
    gap: 0.4rem;
  }

  .glossy-room-card,
  .glossy-usage-card {
    border-radius: 20px !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }
}