@font-face {
	font-family: 'my-alt-round-Medium';
	src: url('https://geniusjamtracks.com/fonts/my-alt/my-alt-Medium.ttf') format('truetype');
	font-display: swap;
}

body {
  width: 100%;
  max-width: 100vw;
  overflow-x: clip;
  font-family: SF Pro Display, SF Pro Icons, Helvetica Neue, Helvetica, Arial, sans-serif;
  color: #111;
  margin: 0;
  padding: 0;
  background: #fff;
}

.lesson__content-wrapper {
  padding: 100px 20px;
  max-width: 960px;
  margin: 0 auto;
}

.lesson__label {
  font-size: 24px;
  color: #999;
  margin-bottom: 4px;
  font-family: 'my-alt-round-Medium', sans-serif;
  letter-spacing: 0.5px;
}

.lesson__chapter {
  font-size: 20px;
  color: #999;
  margin-bottom: 8px;
}

.lesson__title {
  font-size: 48px;
  margin-bottom: 40px;
  font-family: 'my-alt-round-Medium', sans-serif;
}

.lesson__video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  margin-top: 42px;
  margin-bottom: 72px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.lesson__video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.lesson__text {
  font-size: 16px;
  color: #333;
  line-height: 1.7;
}

.lesson__text h2 {
  font-size: 32px;
  margin-top: 60px;
  margin-bottom: 24px;
  font-family: 'my-alt-round-Medium', sans-serif;
  color: #111;
}

.lesson__notation-box {
  background: #f9f9f9;
  border-left: 4px solid #eb870f;
  padding: 16px;
  margin: 24px 0;
  font-family: monospace;
  font-size: 15px;
  line-height: 1.5;
  overflow-x: auto;
}

.lesson__summary-box {
  background: #fff7e6;
  border-left: 4px solid #eb870f;
  padding: 20px;
  font-size: 16px;
  margin-top: 48px;
  border-radius: 6px;
  color: #333;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .lesson__content-wrapper {
    padding: 60px 16px;
  }

  .lesson__label {
    font-size: 18px;
  }

  .lesson__chapter {
    font-size: 16px;
  }

  .lesson__title {
    font-size: 32px;
    margin-bottom: 32px;
  }

  .lesson__text h2 {
    font-size: 24px;
    margin-top: 40px;
    margin-bottom: 20px;
  }

  .lesson__text {
    font-size: 15px;
  }

  .lesson__summary-box {
    font-size: 15px;
    margin-top: 36px;
  }

  .lesson__notation-box {
    font-size: 14px;
    padding: 12px;
  }
}