/* Critical CSS for TradeYa - Above the fold styles */

/* Reset and base styles */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  line-height: 1.15;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: 
    radial-gradient(1200px circle at 20% 10%, rgba(249, 115, 22, 0.15), transparent 40%),
    linear-gradient(135deg, #0b1220 0%, #0e3a8a 55%, #6d28d9 100%);
  color: #ffffff;
  min-height: 100vh;
}

#root {
  height: 100%;
  min-height: 100vh;
}

/* Loading spinner for initial page load */
.ty-spinner {
  width: 48px;
  height: 48px;
  border-radius: 9999px;
  border: 4px solid rgba(255, 255, 255, 0.25);
  border-top-color: #f97316;
  animation: ty-spin 1s linear infinite;
  margin: 0 auto;
}

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

/* Critical layout utilities */
.flex {
  display: flex;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.h-full {
  height: 100%;
}

.w-full {
  width: 100%;
}

.text-center {
  text-align: center;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.mt-3 {
  margin-top: 0.75rem;
}

.p-4 {
  padding: 1rem;
}

.text-lg {
  font-size: 1.125rem;
  line-height: 1.75rem;
}

.opacity-90 {
  opacity: 0.9;
}

/* Critical button styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background-color: #f97316;
  color: white;
  padding: 0.5rem 1rem;
}

.btn-primary:hover {
  background-color: #ea580c;
}

.btn-primary:focus {
  outline: 2px solid #f97316;
  outline-offset: 2px;
}

/* Critical card styles */
.card {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Critical navigation styles */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  background-color: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: #f97316;
  text-decoration: none;
}

/* Critical form styles */
.form-input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 0.375rem;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: 0.875rem;
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.form-input:focus {
  outline: none;
  border-color: #f97316;
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.1);
}

/* Critical alert styles */
.alert {
  padding: 1rem;
  border-radius: 0.375rem;
  margin-bottom: 1rem;
}

.alert-error {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.alert-success {
  background-color: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #86efac;
}

.alert-info {
  background-color: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #93c5fd;
}

/* Critical responsive utilities */
@media (max-width: 640px) {
  .nav {
    padding: 0.75rem;
  }
  
  .card {
    padding: 1rem;
  }
  
  .btn {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
  }
}

/* Critical accessibility styles */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus styles for accessibility */
*:focus {
  outline: 2px solid #f97316;
  outline-offset: 2px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}