@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: #f8fafc;
  color: #0f172a;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
  padding: 0;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
input[type="number"] { -moz-appearance: textfield; }

::selection {
  background-color: #99f6e4;
  color: #134e4a;
}

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

.animate-fade-up { animation: fadeInUp 0.5s ease-out; }
.animate-fade-in { animation: fadeIn 0.5s ease-out; }
.animate-slide-left { animation: slideInLeft 0.5s ease-out 0.1s both; }
.animate-slide-right { animation: slideInRight 0.5s ease-out 0.2s both; }
.animate-fade-up-delay { animation: fadeInUp 0.5s ease-out 0.1s both; }

/* Nav active state */
.nav-link.active { background-color: rgba(255,255,255,0.2); }
.more-link.active { background-color: #f0fdfa; color: #0d9488; }

/* Stagger animations */
.stagger > *:nth-child(1) { animation-delay: 0.05s; }
.stagger > *:nth-child(2) { animation-delay: 0.1s; }
.stagger > *:nth-child(3) { animation-delay: 0.15s; }
.stagger > *:nth-child(4) { animation-delay: 0.2s; }
.stagger > *:nth-child(5) { animation-delay: 0.25s; }
.stagger > *:nth-child(6) { animation-delay: 0.3s; }
.stagger > *:nth-child(7) { animation-delay: 0.35s; }
.stagger > *:nth-child(8) { animation-delay: 0.4s; }
.stagger > *:nth-child(9) { animation-delay: 0.45s; }
.stagger > *:nth-child(10) { animation-delay: 0.5s; }

/* Calculator display buttons */
.calc-btn:active { transform: scale(0.95); }

/* Growth bar tooltip */
.growth-bar:hover .bar-tooltip { opacity: 1; }

/* Scrollbar for tables */
.overflow-y-auto::-webkit-scrollbar { width: 6px; }
.overflow-y-auto::-webkit-scrollbar-track { background: #f1f5f9; }
.overflow-y-auto::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }