@charset "utf-8";
/* ===== PAGE ===== */
body {
  background: #ffffff;
  margin: 0;

}

/* ===== CENTER LAYOUT  padding: 40px 15px;===== */
#lesson-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
   /* KEY CHANGE: vertical offset */
  padding: 5vh 15px;
}

/* ===== CARD ===== */
#lesson-card {
  max-width: 520px;
  text-align: center;
  color: #1a1a1a;
    
}

/* ===== IMAGE ===== */
#lesson-image {
  width: 450px;
  height: auto;
  margin-bottom: 20px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 1.2s ease;
}

/* ===== DATE ===== */
#lesson-date {
  font-size: 13px;
  letter-spacing: 2px;
  color: #888;
  margin-bottom: 10px;
  opacity: 0;
}

/* ===== DIVIDER ===== */
.divider {
  width: 50px;
  height: 1px;
  background: #ddd;
  margin: 15px auto;
  opacity: 0;
}

/* ===== TEXT ===== */
#lesson-text {
  font-size: 21px;
  line-height: 2;
}

/* ===== LINES ===== */
.line {
  display: block;
  opacity: 0;
  transform: translateY(10px);
}

/* ===== FIRST LINE ===== */
.first-line {
  font-size: 24px;
  margin-bottom: 10px;
  font-weight: 500;
}

/* ===== REFERENCE ===== */
.reference {
  margin-top: 15px;
  font-size: 14px;
  color: #777;
  font-style: italic;
  opacity: 0;
}
@media (max-width: 600px) {
  #lesson-container {
    padding: 6vh 12px 10vh;
  }

  #lesson-text {
    font-size: 19px;
    line-height: 1.9;
  }
}