header {
  text-align: center;
  margin-top: 40px;
  padding: 0 20px;
  animation: fadeIn 1.2s ease;
}

header h1 {
  font-size: 2.4rem;
  color: #ff4d4d;
  text-shadow: 2px 2px 10px rgba(255, 0, 0, 0.3);
  margin-bottom: 15px;
}

header p {
  font-size: 1.2rem;
  color: #444;
  line-height: 1.6;
  max-width: 700px;
  margin: auto;
}

/* ---------------------- MAIN ---------------------- */
main {
  flex: 1;
  text-align: center;
  padding: 40px 25px;
  max-width: 900px;
  margin: 30px auto;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 25px;
  box-shadow: 0 0 30px rgba(255, 166, 0, 0.25);
  animation: fadeInUp 1.5s ease;
}

/* ---------------------- TEXT SECTIONS ---------------------- */
main p {
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 15px;
}

.highlighted {
  font-size: 1.8rem;
  font-weight: 700;
  color: #ff6600;
  text-shadow: 2px 2px 8px rgba(255, 165, 0, 0.3);
  background: linear-gradient(90deg, #ffcc70, #ff9a9e);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---------------------- BUTTONS ---------------------- */
.btn {
  background: linear-gradient(135deg, #ff6b6b, #ffcc70);
  color: white;
  border: none;
  border-radius: 50px;
  padding: 12px 28px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(255, 100, 100, 0.3);
  margin-top: 15px;
}

.btn:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 25px rgba(255, 120, 80, 0.4);
}

/* ---------------------- INPUT BOX ---------------------- */
.input-box {
  padding: 12px 18px;
  border-radius: 15px;
  border: 2px solid #ffb84d;
  width: 70%;
  max-width: 300px;
  margin-top: 10px;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.input-box:focus {
  border-color: #ff8000;
  box-shadow: 0 0 10px rgba(255, 150, 0, 0.3);
}

/* ---------------------- DIVIDER ---------------------- */
.divider {
  margin: 40px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #ff4d4d;
  font-weight: 700;
  font-size: 1.2rem;
  position: relative;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 2px;
  background: linear-gradient(to right, transparent, #ffcc70, transparent);
  margin: 0 10px;
}

/* ---------------------- COPY MESSAGE ---------------------- */
#copyMessage {
  font-size: 1rem;
  color: limegreen;
  font-weight: 600;
  margin-top: 8px;
}

/* ---------------------- QR CODE SECTION ---------------------- */
#qrcode {
  display: inline-block;
  margin-top: 20px;
  border: 3px solid #fff6d9;
  padding: 15px;
  border-radius: 15px;
  background-color: #ffffffcc;
  box-shadow: 0 0 15px rgba(255, 180, 50, 0.4);
}

@media (max-width: 768px) {
  /* ---------- HEADER ---------- */
  header {
    margin-top: 25px;
    padding: 0 15px;
  }

  header h1 {
    font-size: 1.9rem;
    margin-bottom: 10px;
    text-shadow: 1px 1px 6px rgba(255, 0, 0, 0.25);
  }

  header p {
    font-size: 1rem;
    line-height: 1.5;
    max-width: 90%;
  }

  /* ---------- MAIN ---------- */
  main {
    padding: 25px 18px;
    margin: 20px auto;
    border-radius: 18px;
    box-shadow: 0 0 20px rgba(255, 166, 0, 0.2);
  }

  main p {
    font-size: 1rem;
    line-height: 1.6;
  }

  .highlighted {
    font-size: 1.4rem;
    text-shadow: 1px 1px 5px rgba(255, 165, 0, 0.25);
  }

  /* ---------- BUTTONS ---------- */
  .btn {
    font-size: 1rem;
    padding: 10px 22px;
    border-radius: 40px;
    margin-top: 10px;
    box-shadow: 0 4px 12px rgba(255, 100, 100, 0.25);
  }

  .btn:hover {
    transform: none;
    box-shadow: 0 5px 15px rgba(255, 120, 80, 0.3);
  }

  /* ---------- INPUT BOX ---------- */
  .input-box {
    width: 90%;
    max-width: none;
    padding: 10px 15px;
    font-size: 0.95rem;
  }

  /* ---------- DIVIDER ---------- */
  .divider {
    font-size: 1rem;
    margin: 30px auto;
    flex-direction: column;
    gap: 8px;
  }

  .divider::before,
  .divider::after {
    width: 70%;
    height: 1.5px;
    margin: 5px 0;
  }

  /* ---------- COPY MESSAGE ---------- */
  #copyMessage {
    font-size: 0.9rem;
    margin-top: 6px;
  }

  /* ---------- QR CODE SECTION ---------- */
  #qrcode {
    margin-top: 15px;
    padding: 12px;
    border-radius: 12px;
    box-shadow: 0 0 12px rgba(255, 180, 50, 0.35);
  }

}