/**
 * Subs.Pk V2 — design system, skeleton loaders, premium UI
 */
:root {
  --spk-brand: #6366f1;
  --spk-brand-dark: #4f46e5;
  --spk-accent: #06b6d4;
  --spk-surface: #ffffff;
  --spk-muted: #64748b;
  --spk-radius: 1rem;
  --spk-shadow: 0 4px 24px -4px rgba(15, 23, 42, 0.12);
  --spk-shadow-lg: 0 20px 40px -12px rgba(99, 102, 241, 0.25);
}

.dark {
  --spk-surface: #0f172a;
  --spk-muted: #94a3b8;
}

/* Skeleton shimmer */
@keyframes spk-shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.spk-skeleton {
  background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 50%, #e2e8f0 75%);
  background-size: 200% 100%;
  animation: spk-shimmer 1.4s ease-in-out infinite;
  border-radius: calc(var(--spk-radius) - 4px);
}

.dark .spk-skeleton {
  background: linear-gradient(90deg, #1e293b 25%, #334155 50%, #1e293b 75%);
  background-size: 200% 100%;
}

.spk-skeleton-text {
  height: 0.875rem;
  margin-bottom: 0.5rem;
  border-radius: 0.375rem;
}

.spk-skeleton-text.short { width: 60%; }
.spk-skeleton-text.medium { width: 85%; }

.spk-product-media {
  position: relative;
  overflow: hidden;
  background: #f8fafc;
}

.dark .spk-product-media {
  background: #1e293b;
}

.spk-product-media .spk-skeleton-image {
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: 0;
}

.spk-product-media img.spk-product-img {
  position: relative;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.spk-product-media img.spk-product-img.is-loaded {
  opacity: 1;
}

/* V2 product cards */
.spk-v2 .product-card,
.spk-v2 .spk-product-card {
  border: 1px solid rgba(148, 163, 184, 0.2);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.spk-v2 .product-card:hover,
.spk-v2 .spk-product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--spk-shadow-lg);
  border-color: rgba(99, 102, 241, 0.35);
}

.spk-v2 .spk-btn-primary {
  background: linear-gradient(135deg, var(--spk-brand) 0%, var(--spk-brand-dark) 100%);
  color: #fff;
  font-weight: 600;
  border-radius: 0.75rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.spk-v2 .spk-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px -6px rgba(99, 102, 241, 0.5);
}

/* Hero gradient overlay */
.spk-v2 .heroSwiper {
  box-shadow: var(--spk-shadow-lg);
}

.spk-v2 .category-card {
  border: 1px solid transparent;
  transition: border-color 0.2s, transform 0.2s;
}

.spk-v2 .category-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-2px);
}

/* Glass nav enhancement */
.spk-v2 nav.spk-nav-glass {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}

.dark .spk-v2 nav.spk-nav-glass {
  background: rgba(15, 23, 42, 0.9);
  border-bottom-color: rgba(51, 65, 85, 0.5);
}

/* Feature pills */
.spk-v2 .spk-feature-pill {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(6, 182, 212, 0.08) 100%);
  border: 1px solid rgba(99, 102, 241, 0.12);
}

.dark .spk-v2 .spk-feature-pill {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(6, 182, 212, 0.1) 100%);
}

/* Shop grid loading state */
.spk-products-loading .spk-product-card .spk-skeleton-block {
  display: block;
}

.spk-products-loading .spk-product-card .spk-real-content {
  display: none;
}

/* Smooth page fade */
.spk-v2 main {
  animation: spk-fade-in 0.4s ease;
}

@keyframes spk-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Install wizard (standalone) */
.spk-install-wrap {
  min-height: 100vh;
  background: linear-gradient(160deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  font-family: 'Inter', system-ui, sans-serif;
}

.spk-install-card {
  width: 100%;
  max-width: 560px;
  background: #fff;
  border-radius: 1.25rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
  overflow: hidden;
}

.spk-install-header {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: #fff;
  padding: 1.75rem 2rem;
}

.spk-install-body { padding: 2rem; }

.spk-install-step {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.spk-install-step span {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  background: #e2e8f0;
  color: #64748b;
}

.spk-install-step span.active {
  background: #6366f1;
  color: #fff;
}

.spk-install-step span.done {
  background: #10b981;
  color: #fff;
}

.spk-install-field {
  margin-bottom: 1rem;
}

.spk-install-field label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: #334155;
  margin-bottom: 0.375rem;
}

.spk-install-field input,
.spk-install-field select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid #cbd5e1;
  border-radius: 0.5rem;
  font-size: 0.9375rem;
}

.spk-install-btn {
  width: 100%;
  padding: 0.75rem;
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: #fff;
  border: none;
  border-radius: 0.625rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 0.5rem;
}

.spk-install-btn:hover { opacity: 0.95; }

.spk-install-alert {
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.spk-install-alert.error {
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

.spk-install-alert.success {
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
}

.spk-install-req {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}

.spk-install-req li {
  padding: 0.375rem 0;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.spk-install-req li.ok { color: #047857; }
.spk-install-req li.fail { color: #b91c1c; }