.yellow-note {
  background-color: #FFF9C4;
  border-left: 4px solid #FFD600;
  border-radius: 0 8px 8px 0;
  padding: 15px 20px;
  margin: 25px 0;
  display: flex;
  align-items: flex-start;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  max-width: 400px;
}

.note-icon {
  font-size: 24px;
  margin-right: 15px;
  color: #F57F17;
}

.note-content h4 {
  margin: 0 0 8px 0;
  color: #5D4037;
  font-size: 16px;
  text-transform: uppercase;
}

.note-content p {
  margin: 0;
  color: #3E2723;
  font-size: 14px;
  line-height: 1.5;
}

.note-content strong {
  color: #E65100;
}
/* Адаптация для мобильных */
@media (max-width: 480px) {
  .yellow-note {
    padding: 12px 15px;
    max-width: 100%;
  }
}
.arm-workout-revolution {
  font-family: 'Arial', sans-serif;
  max-width: 700px;
  margin: 0 auto;
  padding: 30px;
  background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.header-section {
  text-align: center;
  margin-bottom: 40px;
}

.goodbye, .hello {
  font-size: 28px;
  margin: 10px 0;
  color: #2c3e50;
}

h1 {
  font-size: 42px;
  color: #e74c3c;
  margin: 20px 0;
  text-transform: uppercase;
}

.strikethrough {
  text-decoration: line-through;
  color: #95a5a6;
}

.highlight {
  color: #e74c3c;
  font-weight: bold;
}

.workout-principles {
  display: flex;
  justify-content: space-between;
  margin: 40px 0;
}

.principle-card {
  background: white;
  padding: 25px 20px;
  border-radius: 10px;
  width: 30%;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.principle-icon {
  font-size: 40px;
  margin-bottom: 15px;
}

.sample-workout {
  background: white;
  padding: 30px;
  border-radius: 10px;
  margin: 30px 0;
}

.exercise {
  margin-bottom: 25px;
  padding-bottom: 25px;
  border-bottom: 1px dashed #ecf0f1;
}

.exercise:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.motivation-quote {
  text-align: center;
  font-style: italic;
  font-size: 18px;
  color: #7f8c8d;
  margin-top: 40px;
}

@media (max-width: 650px) {
  .workout-principles {
    flex-direction: column;
  }
  
  .principle-card {
    width: 100%;
    margin-bottom: 20px;
  }
  
  .goodbye, .hello {
    font-size: 22px;
  }
  
  h1 {
    font-size: 32px;
  }
}
.workout-challenge {
  font-family: 'Arial', sans-serif;
  max-width: 700px;
  margin: 0 auto;
  padding: 30px;
}

h2 {
  color: #e74c3c;
  text-align: center;
  font-size: 28px;
  margin-bottom: 30px;
  text-transform: uppercase;
}

.content-box {
  background-color: #f8f9fa;
  padding: 25px;
  border-radius: 10px;
  line-height: 1.6;
}

.challenge-box {
  background-color: #eaf2f8;
  padding: 20px;
  border-radius: 8px;
  margin-top: 25px;
  border-left: 3px solid #3498db;
}

strong {
  color: #2c3e50;
  font-weight: bold;
}

@media (max-width: 600px) {
  h2 {
    font-size: 22px;
  }
  
  .content-box {
    padding: 20px 15px;
  }
}