:root {
  --sk-bg: #f4f6fb;
  --sk-card: #e9edf5;
  --sk-highlight: rgba(255, 255, 255, 0.65);
  --sk-shadow: rgba(15, 23, 42, 0.06);
}

.skeleton-screen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--sk-bg);
  display: flex;
  align-items: stretch;
  justify-content: center;
  padding: 24px;
  opacity: 1;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.skeleton-screen.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.skeleton-shell {
  width: min(1200px, 100%);
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.sk-variant {
  display: none;
  flex-direction: column;
  gap: 24px;
}

body[data-skeleton="landing"] #skeleton-screen .sk-landing,
body[data-skeleton="about"] #skeleton-screen .sk-landing {
  display: flex;
}

body[data-skeleton="dashboard"] #skeleton-screen .sk-dashboard,
body[data-skeleton="account"] #skeleton-screen .sk-dashboard {
  display: flex;
}

body[data-skeleton="auth"] #skeleton-screen .sk-auth {
  display: flex;
  align-items: center;
  justify-content: center;
}

body[data-skeleton="form"] #skeleton-screen .sk-form {
  display: flex;
}

body[data-skeleton="table"] #skeleton-screen .sk-table-page {
  display: flex;
}

body[data-skeleton="checkout"] #skeleton-screen .sk-checkout {
  display: flex;
  align-items: center;
  justify-content: center;
}

.sk-header {
  display: grid;
  grid-template-columns: 160px 1fr 180px;
  gap: 20px;
  align-items: center;
}

.sk-header.compact {
  grid-template-columns: 140px 1fr;
}

.sk-brand {
  height: 44px;
  border-radius: 12px;
  background: var(--sk-card);
}

.sk-nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.sk-pill {
  height: 18px;
  width: 90px;
  border-radius: 999px;
  background: var(--sk-card);
}

.sk-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.sk-btn {
  height: 32px;
  width: 72px;
  border-radius: 8px;
  background: var(--sk-card);
}

.sk-hero {
  background: #fff;
  border-radius: 20px;
  padding: 36px;
  box-shadow: 0 12px 30px var(--sk-shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sk-line {
  height: 16px;
  border-radius: 10px;
  background: var(--sk-card);
}

.sk-title {
  height: 28px;
  width: 70%;
}

.sk-text {
  width: 85%;
}

.sk-cta {
  display: flex;
  gap: 12px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.sk-btn-lg {
  height: 44px;
  width: 160px;
  border-radius: 12px;
  background: var(--sk-card);
}

.sk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.sk-grid.wide {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.sk-card {
  height: 140px;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 24px var(--sk-shadow);
}

.sk-card.tall {
  height: 180px;
}

.sk-list {
  display: grid;
  gap: 12px;
}

.sk-row {
  height: 20px;
  border-radius: 10px;
  background: var(--sk-card);
}

.sk-table {
  display: grid;
  gap: 10px;
}

.sk-auth-card {
  background: #fff;
  border-radius: 20px;
  padding: 36px;
  width: min(520px, 100%);
  box-shadow: 0 12px 30px var(--sk-shadow);
  display: grid;
  gap: 16px;
}

.sk-field {
  height: 44px;
  border-radius: 12px;
  background: var(--sk-card);
}

.sk-form-grid {
  background: #fff;
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 12px 30px var(--sk-shadow);
  display: grid;
  gap: 16px;
}

.sk-shimmer {
  position: relative;
  overflow: hidden;
}

.sk-shimmer::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, var(--sk-highlight), transparent);
  animation: sk-shimmer 1.3s infinite;
}

@keyframes sk-shimmer {
  100% {
    transform: translateX(100%);
  }
}

@media (max-width: 768px) {
  .skeleton-screen {
    padding: 16px;
  }

  .sk-header {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .sk-actions {
    justify-content: flex-start;
  }

  .sk-hero {
    padding: 24px;
  }

  .sk-title {
    width: 100%;
  }

  .sk-auth-card {
    padding: 24px;
  }
}