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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-container {
  width: 100%;
  max-width: 440px;
}

.login-box {
  background: white;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  padding: 48px 40px;
  animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo {
  max-width: 160px;
  height: auto;
  margin-bottom: 24px;
}

.login-title {
  font-size: 28px;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 8px;
}

.login-subtitle {
  font-size: 15px;
  color: #6b7280;
}

.alert {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 24px;
  font-size: 14px;
  animation: shake 0.4s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-10px); }
  75% { transform: translateX(10px); }
}

.alert-error {
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.alert-icon {
  width: 20px;
  height: 20px;
  margin-right: 12px;
  flex-shrink: 0;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: #374151;
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-icon {
  width: 18px;
  height: 18px;
  color: #6b7280;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  transition: all 0.2s;
  background: #f9fafb;
}

.form-input:focus {
  outline: none;
  border-color: #667eea;
  background: white;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-input::placeholder {
  color: #9ca3af;
}

.btn-login {
  width: 100%;
  padding: 14px 24px;
  font-size: 16px;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.btn-login:active {
  transform: translateY(0);
}

.btn-icon {
  width: 20px;
  height: 20px;
}

.login-footer {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid #e5e7eb;
  text-align: center;
}

.login-info {
  font-size: 13px;
  color: #6b7280;
  line-height: 1.6;
}

.login-info strong {
  color: #374151;
  font-weight: 600;
  background: #f3f4f6;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
}

@media (max-width: 480px) {
  .login-box {
    padding: 32px 24px;
  }

  .login-title {
    font-size: 24px;
  }

  .login-logo {
    max-width: 140px;
  }
}

.btn-login:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.profile-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  min-width: 200px;
  z-index: 1000;
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.profile-menu a:hover {
  background-color: #fee2e2 !important;
}