* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: ui-monospace, 'Fira Code', Menlo, Monaco, monospace;
  background: #000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: hidden;
  padding: 20px;
}

h1 {
  text-align: center;
  margin-bottom: 0.5rem;
  color: #fff;
  font-size: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  color: #555;
  font-weight: 500;
}

input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid #e1e8ed;
  border-radius: 8px;
  font-size: 16px;
  transition: border-color 0.3s;
}

input:focus {
  outline: none;
  border-color: #667eea;
}

.button-group {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  align-items: center;
}

.button-group button {
  width: 100%;
  box-sizing: content-box;
  letter-spacing: normal;
  white-space: nowrap;
}

button {
  flex: 1;
  padding: 0.75rem;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.5px;
  font-family: monospace;
}

.login-btn {
  background: #00b8ff;
  color: white;
  padding: 0.5rem 1rem;
  font-size: 16px;
  display: block;
  line-height: 1.2;
  min-height: calc(2.4em + 1rem);
  white-space: normal;
}

#registerBtn {
  display: block;
  padding: 0.75rem 1rem;
  white-space: normal;
}

.login-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(79, 172, 254, 0.4);
}

.small {
  font-size: 14px;
  padding: 0.5rem 0.75rem;
}

.success-btn {
  background: #00c853;
  color: white;
  font-family: monospace;
}

.error-state {
  background: #dc3545 !important;
  color: white;
  animation: error-pulse 0.6s;
}

@keyframes error-pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

.btn-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.5);
  border-top: 3px solid #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-state {
  position: relative;
  color: transparent !important;
}

.loading-state .btn-spinner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.primary {
  background: #7b3f94;
  color: white;
}

.primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(127, 0, 255, 0.4);
}

.secondary {
  background: #24c6dc;
  color: white;
}

.secondary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(36, 198, 220, 0.4);
}

.signout-btn {
  background: #b23a48;
  color: #fff;
}

.signout-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(220, 53, 69, 0.4);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.info {
  background-color: #d1ecf1;
  color: #0c5460;
  border: 1px solid #bee5eb;
}

.status {
  margin-top: 2rem;
  padding: 1rem;
  background-color: #f8f9fa;
  border-radius: 8px;
  font-size: 14px;
  color: #666;
  text-align: center;
}

.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid #f3f3f3;
  border-top: 3px solid #667eea;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-right: 10px;
  vertical-align: middle;
}

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

/* Register button states */
.btn-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-top: 2px solid #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  vertical-align: middle;
}

.btn-checkmark {
  color: #fff;
}

.btn-error {
  color: #ff4d4f;
  animation: pulse 0.6s ease-in-out;
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.3);
  }
  100% {
    transform: scale(1);
  }
}