* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: #050607;
  color: #fff;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 24px;
}

#root {
  width: 100%;
  max-width: 480px;
}

button {
  border: none;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
}

.bg-black {
  background: #050607;
}

.bg-gray-800 {
  background: rgba(15, 23, 42, 0.94);
}

.bg-gray-900 {
  background: rgba(15, 23, 42, 0.96);
}

.border-gray-700 {
  border-color: rgba(71, 85, 105, 0.65);
}

.gradient-text {
  background: linear-gradient(135deg, #00ff88, #00d4ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-bg {
  background: linear-gradient(135deg, #00ff88, #00d4ff);
}

.loading-gradient {
  background: linear-gradient(-45deg, #0b1120, #111827, #0b1120, #111827);
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

@keyframes bounce {
  0%, 100% { transform: translateY(-20%); animation-timing-function: cubic-bezier(0.8, 0, 1, 1); }
  50% { transform: translateY(0); animation-timing-function: cubic-bezier(0, 0, 0.2, 1); }
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

.animate-bounce {
  animation: bounce 1s infinite;
}

.rounded-2xl {
  border-radius: 24px;
}

.rounded-xl {
  border-radius: 18px;
}

.rounded-full {
  border-radius: 9999px;
}

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

.flex {
  display: flex;
}

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

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

.justify-between {
  justify-content: space-between;
}

.justify-end {
  justify-content: flex-end;
}

.flex-col {
  flex-direction: column;
}

.w-full {
  width: 100%;
}

.h-2 {
  height: 0.5rem;
}

.h-3 {
  height: 0.75rem;
}

.h-20 {
  height: 5rem;
}

.w-20 {
  width: 5rem;
}

.w-16 {
  width: 4rem;
}

.h-16 {
  height: 4rem;
}

.w-8 {
  width: 2rem;
}

.h-8 {
  height: 2rem;
}

.p-4 {
  padding: 1rem;
}

.p-6 {
  padding: 1.5rem;
}

.p-12 {
  padding: 3rem;
}

.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }

.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }

.max-w-md {
  max-width: 28rem;
}

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

.mb-0 {
  margin-bottom: 0;
}

.border {
  border-width: 1px;
  border-style: solid;
}

.text-sm {
  font-size: 0.875rem;
}

.text-xs {
  font-size: 0.75rem;
}

.text-gray-300 { color: #d1d5db; }
.text-gray-400 { color: #9ca3af; }
.text-gray-600 { color: #4b5563; }
.text-white { color: #fff; }
.text-green-400 { color: #34d399; }
.text-blue-400 { color: #60a5fa; }
.text-red-300 { color: #fca5a5; }

.font-bold { font-weight: 700; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }

.shadow-soft {
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.25);
}

.card {
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(71, 85, 105, 0.65);
}

.button-primary {
  background: linear-gradient(135deg, #00ff88, #00d4ff);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 1.25rem;
  border-radius: 18px;
  transition: opacity 0.2s ease;
}

.button-primary:hover {
  opacity: 0.92;
}

.button-primary:disabled {
  opacity: 0.55;
}

@media (max-width: 520px) {
  body {
    padding: 16px;
  }

  .max-w-md {
    max-width: 100%;
  }
}