/* Page skeleton — logo2 nhỏ + spinner + Đang tải trang */

html.sk-loading {
  background: oklch(16% 0.028 48);
}

html.sk-loading body {
  overflow: hidden;
}

.page-skeleton {
  position: fixed;
  inset: 0;
  z-index: 2147483000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 4vw, 32px);
  background: oklch(16% 0.028 48);
  transition: opacity 0.45s cubic-bezier(0.22, 1, 0.36, 1), visibility 0.45s ease;
}

.page-skeleton::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 10% 0%, oklch(42% 0.08 55 / 0.35), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 20%, oklch(38% 0.1 38 / 0.25), transparent 50%),
    linear-gradient(180deg, oklch(16% 0.028 48) 0%, oklch(18% 0.03 50) 100%);
  z-index: 0;
}

html.sk-loaded .page-skeleton {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.sk-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  animation: sk-enter 0.5s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes sk-enter {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Logo nhỏ gọn */
.sk-logo {
  display: block;
  width: auto;
  height: clamp(72px, 18vw, 96px);
  max-width: min(72vw, 108px);
  object-fit: contain;
  filter: drop-shadow(0 8px 20px oklch(8% 0.02 48 / 0.5));
}

/* Spinner — vòng vàng, quay mượt */
.sk-spinner {
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
}

.sk-spinner__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid oklch(32% 0.04 55 / 0.55);
  border-top-color: oklch(72% 0.14 75);
  border-right-color: oklch(65% 0.1 72 / 0.85);
  box-shadow: 0 0 16px oklch(58% 0.1 72 / 0.2);
  animation: sk-spin 0.85s cubic-bezier(0.45, 0.05, 0.35, 0.95) infinite;
}

@keyframes sk-spin {
  to {
    transform: rotate(360deg);
  }
}

/* Chữ trạng thái */
.sk-loading-text {
  margin: 0;
  display: flex;
  align-items: baseline;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.1em;
  font-family: 'Source Sans 3', system-ui, sans-serif;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: oklch(82% 0.03 78);
}

.sk-loading-text__label {
  color: oklch(88% 0.04 85);
}

.sk-loading-dots {
  display: inline-flex;
  gap: 0.05em;
  line-height: 1;
}

.sk-loading-dots span {
  display: inline-block;
  width: 0.35em;
  color: oklch(65% 0.1 72);
  animation: sk-dot 1.2s ease-in-out infinite;
}

.sk-loading-dots span:nth-child(1) {
  animation-delay: 0s;
}

.sk-loading-dots span:nth-child(2) {
  animation-delay: 0.15s;
}

.sk-loading-dots span:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes sk-dot {
  0%, 100% {
    opacity: 0.25;
    transform: translateY(0);
  }
  50% {
    opacity: 1;
    transform: translateY(-2px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .sk-inner {
    animation: none;
  }

  .sk-spinner__ring {
    animation-duration: 1.4s;
  }

  .sk-loading-dots span {
    animation: none;
    opacity: 0.7;
  }
}