* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
  background: #f7f5f0;
  color: #2c2c2c;
}

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: #3b2f2f;
  color: #f0e9df;
  padding: 32px 0;
}

.sidebar h1 {
  font-size: 18px;
  text-align: center;
  margin: 0 0 32px;
  padding: 0 12px;
  color: #f5deb3;
}

.sidebar nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar nav li a {
  display: block;
  padding: 14px 24px;
  color: #f0e9df;
  text-decoration: none;
  border-left: 4px solid transparent;
  transition: background 0.2s, border-color 0.2s;
}

.sidebar nav li a:hover,
.sidebar nav li a.active {
  background: #55433f;
  border-left-color: #f5deb3;
}

.content {
  flex: 1;
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.content img {
  max-width: 480px;
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
  margin-bottom: 32px;
}

.message h2 {
  font-size: 26px;
  color: #3b2f2f;
  margin-bottom: 16px;
}

.message p {
  font-size: 17px;
  line-height: 1.8;
  max-width: 620px;
}

.info-box {
  background: #ffffff;
  border: 1px solid #ddd6c9;
  border-radius: 8px;
  padding: 40px 48px;
  margin-top: 20px;
  min-width: 300px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.info-box h2 {
  margin-top: 0;
  color: #3b2f2f;
}

.info-box p {
  font-size: 20px;
  margin: 0;
}