body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #fff0f8;
  color: #3a2d3c;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ——— Header ——— */
header {
  background: #ffe0f4;
  padding: 10px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}
header img {
  height: 60px;
  max-width: 100%;
}
nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
nav ul li a {
  text-decoration: none;
  color: #b72c7d;
  font-weight: bold;
}

/* ——— Banner ——— */
.banner-row {
  text-align: center;
  padding: 30px 0;
  background: #fff7fc;
}
.banner-wrapper {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
.banner-wrapper img {
  width: 80%;
  max-width: 800px;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* ——— Layout ——— */
.main-container {
  display: flex;
  flex: 1;
  flex-wrap: wrap;
}

/* ——— Sidebar ——— */
.sidebar {
  background: #ffeaf5;
  width: 260px;
  padding: 20px;
  border-left: 1px solid #f3b9d2;
  box-shadow: inset 2px 0 6px rgba(0,0,0,0.03);
  flex-shrink: 0;
}
.sidebar h3 {
  color: #b72c7d;
}
.download-box {
  background: #ffd1ea;
  border: 1px solid #f9a8c4;
  padding: 15px;
  text-align: center;
  border-radius: 8px;
}
.download-box a {
  display: inline-block;
  margin-top: 10px;
  padding: 10px 20px;
  background: #ff69b4;
  color: #fff;
  font-weight: bold;
  text-decoration: none;
  border-radius: 5px;
  transition: background 0.3s;
}
.download-box a:hover {
  background: #ff85c1;
}

/* ——— Main ——— */
main {
  flex: 1;
  padding: 40px 30px;
  background: #fff8fc;
}
main h2 {
  color: #b72c7d;
  margin-bottom: 10px;
}
main ul {
  padding-left: 20px;
}
main li {
  margin-bottom: 8px;
}
main p {
  line-height: 1.6;
  font-size: 16px;
  margin-bottom: 20px;
}

/* ——— Footer ——— */
footer {
  text-align: center;
  padding: 20px;
  background: #ffe0f4;
  color: #6c4b63;
  font-size: 14px;
}

/* ——— Tablet ——— */
@media (max-width: 1024px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  nav ul {
    justify-content: flex-start;
    gap: 16px;
  }

  .main-container {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    border-left: none;
    border-top: 1px solid #f3b9d2;
    margin-top: 20px;
  }

  main {
    padding: 30px 20px;
  }

  .banner-wrapper img {
    width: 90%;
  }
}

/* ——— Mobile ——— */
@media (max-width: 768px) {
  nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    width: 100%;
  }

  .banner-row {
    padding: 20px 15px;
  }

  .banner-wrapper img {
    width: 100%;
  }

  .download-box a {
    width: 100%;
    max-width: 300px;
  }

  main {
    padding: 25px 15px;
  }

  main h2 {
    font-size: 22px;
  }

  main p,
  main li {
    font-size: 15px;
  }

  footer {
    font-size: 13px;
    padding: 20px 15px;
  }
}