::-webkit-scrollbar { height: 8px; width: 8px; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 9999px; }
::-webkit-scrollbar-track { background: transparent; }

body { -webkit-tap-highlight-color: transparent; }

/* ===== Google-style 4-color spinner ===== */
.google-spinner {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 5px solid transparent;
  border-top-color: #4285F4;   /* blue */
  border-right-color: #EA4335; /* red */
  border-bottom-color: #FBBC05; /* yellow */
  border-left-color: #34A853;  /* green */
  animation: spin 1s cubic-bezier(0.55, 0.15, 0.45, 0.85) infinite;
}

@keyframes spin {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===== Page content fade/slide in ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.animate-fade-in-up {
  animation: fadeInUp 0.5s ease-out both;
}

/* ===== Staggered card entrance (add data-stagger="N" on an element) ===== */
@keyframes slideInCard {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.stagger-item {
  opacity: 0;
  animation: slideInCard 0.45s ease-out forwards;
}

/* ===== Subtle lift on interactive cards ===== */
.card-hover {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -6px rgba(10, 31, 68, 0.15);
}

/* ===== Button press feedback ===== */
button, a.btn, .btn {
  transition: transform 0.12s ease, opacity 0.12s ease;
}
button:active, a.btn:active, .btn:active {
  transform: scale(0.96);
}

/* ===== Smooth page-wide scroll ===== */
html { scroll-behavior: smooth; }

/* ===== Glassmorphism (iOS-style frosted glass) ===== */
.glass {
  background: rgba(10, 31, 68, 0.65);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.glass-light {
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

/* ===== Native cross-document View Transitions (MPA page-to-page slide/fade) =====
   ทำงานเองในเบราว์เซอร์ที่รองรับ (Chrome/Edge รุ่นใหม่) เบราว์เซอร์อื่นจะข้ามไปเฉยๆ ไม่พัง */
@view-transition {
  navigation: auto;
}
::view-transition-old(root) {
  animation: viewFadeSlideOut 0.22s ease-out both;
}
::view-transition-new(root) {
  animation: viewFadeSlideIn 0.28s ease-out both;
}
@keyframes viewFadeSlideOut {
  to { opacity: 0; transform: translateY(-10px) scale(0.99); }
}
@keyframes viewFadeSlideIn {
  from { opacity: 0; transform: translateY(10px) scale(0.99); }
}

/* ===== Skeleton loading (shimmer placeholders ก่อนเนื้อหาจริงโผล่) ===== */
.skeleton {
  position: relative;
  overflow: hidden;
  background: #e2e8f0;
}
.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.75), transparent);
  animation: shimmer 1.4s infinite;
}
@keyframes shimmer {
  100% { transform: translateX(100%); }
}

/* ===== Scroll reveal (โผล่ตอนเลื่อนจอผ่าน ใช้กับ [data-reveal]) ===== */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Bottom tab bar (iOS-style, มือถือเท่านั้น) ===== */
.bottom-tab-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
.bottom-tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 8px 0 6px;
  font-size: 11px;
  color: rgba(10, 31, 68, 0.55);
  transition: color 0.2s ease, transform 0.15s ease;
}
.bottom-tab-item i { font-size: 18px; }
.bottom-tab-item.active {
  color: #0a1f44;
}
.bottom-tab-item.active i {
  transform: translateY(-1px);
}
.bottom-tab-item:active {
  transform: scale(0.92);
}