html {
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
}
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}
/* Hardware acceleration for ultra-smooth rendering */
.lift, .card-hover, .glass-card, button, .modal-content {
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    transform: translateZ(0);
}
.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    vertical-align: middle;
    line-height: 1;
}
.glass-panel {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    transition: all 0.25s ease;
}
.glass-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.glass-card:hover {
    border-color: #93c5fd;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37,99,235,0.1), 0 4px 10px rgba(37,99,235,0.05);
}
.card-hover {
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-hover:hover {
    transform: translateY(-2px);
    border-color: #93c5fd;
    box-shadow: 0 10px 25px rgba(37,99,235,0.1), 0 4px 10px rgba(37,99,235,0.05);
}
.ai-glow {
    box-shadow: 0 0 12px rgba(37, 99, 235, 0.15);
}
.inner-glow {
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}
.custom-scrollbar::-webkit-scrollbar { width: 4px; height: 4px; }
.custom-scrollbar::-webkit-scrollbar-track { background: transparent; }
.custom-scrollbar::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }
.custom-scrollbar::-webkit-scrollbar-thumb:hover { background: #94a3b8; }
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}
.pulse-indicator {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
.hero-gradient {
    background: linear-gradient(135deg, #eff6ff 0%, #ffffff 50%, #f0f9ff 100%);
}
.glass-landing {
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(24px);
    border: 1px solid #e2e8f0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.gauge-container svg { display: block; }
.gauge-container circle { transition: stroke-dashoffset 1s ease; }
section.bg-background { animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ===== Scroll-Reveal Animations ===== */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.35s cubic-bezier(0.16,1,0.3,1), transform 0.35s cubic-bezier(0.16,1,0.3,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(-20px); transition: opacity 0.35s cubic-bezier(0.16,1,0.3,1), transform 0.35s cubic-bezier(0.16,1,0.3,1); }
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(20px); transition: opacity 0.35s cubic-bezier(0.16,1,0.3,1), transform 0.35s cubic-bezier(0.16,1,0.3,1); }
.reveal-right.visible { opacity: 1; transform: translateX(0); }
.reveal-scale { opacity: 0; transform: scale(0.95); transition: opacity 0.3s cubic-bezier(0.16,1,0.3,1), transform 0.3s cubic-bezier(0.16,1,0.3,1); }
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* Stagger delays for children */
.stagger > *:nth-child(1) { transition-delay: 0s; }
.stagger > *:nth-child(2) { transition-delay: 0.03s; }
.stagger > *:nth-child(3) { transition-delay: 0.06s; }
.stagger > *:nth-child(4) { transition-delay: 0.09s; }
.stagger > *:nth-child(5) { transition-delay: 0.12s; }
.stagger > *:nth-child(6) { transition-delay: 0.15s; }
.stagger > *:nth-child(7) { transition-delay: 0.18s; }
.stagger > *:nth-child(8) { transition-delay: 0.21s; }
.stagger > *:nth-child(9) { transition-delay: 0.24s; }
.stagger > *:nth-child(10) { transition-delay: 0.27s; }
.stagger > *:nth-child(11) { transition-delay: 0.3s; }
.stagger > *:nth-child(12) { transition-delay: 0.33s; }
.stagger > *:nth-child(13) { transition-delay: 0.36s; }
.stagger > *:nth-child(14) { transition-delay: 0.39s; }
.stagger > *:nth-child(15) { transition-delay: 0.42s; }
.stagger > *:nth-child(16) { transition-delay: 0.45s; }

/* ===== Counter Animation ===== */
.stat-number { display: inline-block; }

/* ===== Skeleton / Shimmer Loading ===== */
.skeleton { background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%); background-size: 200% 100%; animation: shimmer 1.5s ease-in-out infinite; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ===== Page Transition ===== */
.page-enter { opacity: 0; transform: translateY(8px); }
.page-enter-active { opacity: 1; transform: translateY(0); transition: opacity 0.2s ease, transform 0.2s ease; }

/* ===== Enhanced Sidebar Link ===== */
.sidebar-link { position: relative; overflow: hidden; }
.sidebar-link::after { content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background: #2563eb; transition: width 0.3s ease; }
.sidebar-link:hover::after { width: 100%; }
.sidebar-link.bg-primary::after { display: none; }

/* ===== Card Lift ===== */
.lift { transition: transform 0.25s cubic-bezier(0.4,0,0.2,1), box-shadow 0.25s cubic-bezier(0.4,0,0.2,1); }
.lift:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(37,99,235,0.1), 0 4px 10px rgba(37,99,235,0.05); }

/* ===== Pulse Dot ===== */
.pulse-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: #2563eb; animation: pulse-dot 1.5s ease-in-out infinite; }
@keyframes pulse-dot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.4; transform: scale(1.4); } }

/* ===== Ripple Effect ===== */
.ripple { position: relative; overflow: hidden; }
.ripple::after { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at var(--x,50%) var(--y,50%), rgba(37,99,235,0.15) 0%, transparent 70%); opacity: 0; transition: opacity 0.3s; pointer-events: none; }
.ripple:hover::after { opacity: 1; }

/* ===== Top Loading Bar ===== */
#nprogress { pointer-events: none; position: fixed; top: 0; left: 0; width: 100%; z-index: 9999; height: 3px; }
#nprogress .bar { height: 100%; background: #2563eb; width: 0; transition: width 0.3s cubic-bezier(0.4,0,0.2,1); border-radius: 0 2px 2px 0; box-shadow: 0 0 10px rgba(37,99,235,0.3); }

/* ===== Modal Fade ===== */
.modal-overlay { opacity: 0; transition: opacity 0.25s ease; }
.modal-overlay:not(.hidden) { opacity: 1; }
.modal-content { transform: scale(0.92) translateY(10px); transition: transform 0.3s cubic-bezier(0.16,1,0.3,1); }
.modal-overlay:not(.hidden) .modal-content { transform: scale(1) translateY(0); }

/* ===== Input Focus Glow ===== */
input:focus, textarea:focus, select:focus { transition: box-shadow 0.2s ease, border-color 0.2s ease; }

/* ===== Button Spinner ===== */
.btn-spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff; border-radius: 50%; animation: spin 0.6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Smooth Collapse ===== */
.smooth-collapse { overflow: hidden; transition: max-height 0.35s cubic-bezier(0.16,1,0.3,1), opacity 0.25s ease; max-height: 0; opacity: 0; }
.smooth-collapse.open { max-height: 1000px; opacity: 1; }

/* ===== Page Transition ===== */
.page-enter { opacity: 0; transform: translateY(6px); }
.page-enter-active { opacity: 1; transform: translateY(0); transition: opacity 0.2s cubic-bezier(0.16, 1, 0.3, 1), transform 0.2s cubic-bezier(0.16, 1, 0.3, 1); }

/* ===== Result Slide ===== */
.result-enter { opacity: 0; transform: translateY(12px) scale(0.98); }
.result-enter-active { opacity: 1; transform: translateY(0) scale(1); transition: all 0.35s cubic-bezier(0.16,1,0.3,1); }

/* ===== Scale Press ===== */
.press { transition: transform 0.15s cubic-bezier(0.4,0,0.2,1); }
.press:active { transform: scale(0.96); }

/* ===== Feature Icon Pulse ===== */
.feature-icon { transition: transform 0.3s cubic-bezier(0.16,1,0.3,1); }
.lift:hover .feature-icon { transform: scale(1.15) rotate(-3deg); }

/* ===== Upload Progress ===== */
.progress-bar { height: 3px; background: #e2e8f0; border-radius: 2px; overflow: hidden; }
.progress-bar-fill { height: 100%; background: #2563eb; border-radius: 2px; transition: width 0.4s cubic-bezier(0.16,1,0.3,1); width: 0; }

/* ===== Toast Notifications ===== */
.toast {
  pointer-events: auto;
  padding: 10px 16px;
  border-radius: 10px;
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  animation: toastSlideIn 0.3s cubic-bezier(0.16,1,0.3,1) forwards;
  max-width: 360px;
}
.toast.removing { animation: toastSlideOut 0.3s cubic-bezier(0.16,1,0.3,1) forwards; }
@keyframes toastSlideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes toastSlideOut { from { transform: translateX(0); opacity: 1; } to { transform: translateX(100%); opacity: 0; } }
.toast-success { background: #059669; }
.toast-error { background: #dc2626; }
.toast-info { background: #2563eb; }

/* ===== Professional Loader Animations ===== */
@keyframes shimmerWave {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(200%); }
}
.animate-shimmer {
  animation: shimmerWave 2s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes pulseSubtle {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.04); opacity: 0.85; }
}
.pulse-subtle {
  animation: pulseSubtle 2.2s ease-in-out infinite;
}

@keyframes spinReverse {
  to { transform: rotate(-360deg); }
}
.animate-spin-reverse {
  animation: spinReverse 2.4s linear infinite;
}