:root {
  --bg: #f5f1ea;
  --panel: #ffffff;
  --accent: #7a5c3e;
  --accent-dark: #4d3826;
  --text: #2b2420;
  --muted: #6b6259;
  --border: #e2d9cb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Malgun Gothic", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

.layout {
  display: flex;
  min-height: 100vh;
  max-width: 1100px;
  margin: 0 auto;
}

/* 왼쪽 메뉴 */
.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--accent-dark);
  color: #f5f1ea;
  padding: 32px 20px;
}

.sidebar h2 {
  font-size: 1.1rem;
  margin: 0 0 20px;
  color: #e8dcc8;
  letter-spacing: 1px;
}

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

.sidebar nav li + li {
  margin-top: 8px;
}

.sidebar nav a {
  display: block;
  padding: 12px 14px;
  border-radius: 8px;
  color: #f5f1ea;
  text-decoration: none;
  font-size: 0.95rem;
  transition: background 0.15s ease, padding-left 0.15s ease;
}

.sidebar nav a:hover {
  background: rgba(255, 255, 255, 0.12);
  padding-left: 18px;
}

.sidebar nav a.active {
  background: var(--accent);
  font-weight: bold;
}

/* 본문 */
.content {
  flex: 1;
  padding: 48px 40px;
  background: var(--panel);
}

.content h1 {
  margin-top: 0;
  color: var(--accent-dark);
  font-size: 1.6rem;
  border-bottom: 2px solid var(--border);
  padding-bottom: 12px;
}

/* 메인 페이지 중앙 콘텐츠 */
.hero {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.hero img {
  max-width: 100%;
  width: 320px;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  margin-bottom: 28px;
}

.hero .message {
  background: #fbf7ef;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px 28px;
  text-align: left;
}

.hero .message h2 {
  color: var(--accent);
  margin-top: 0;
  font-size: 1.3rem;
}

.hero .message p {
  color: var(--text);
  margin-bottom: 0;
}

/* 하위 메뉴 페이지 */
.detail-box {
  max-width: 480px;
  background: #fbf7ef;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 32px;
  font-size: 1.15rem;
}

.detail-box .label {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 6px;
}

.detail-box .value {
  color: var(--accent-dark);
  font-weight: bold;
  font-size: 1.4rem;
}

@media (max-width: 640px) {
  .layout {
    flex-direction: column;
  }
  .sidebar {
    width: auto;
  }
  .sidebar nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  .sidebar nav li {
    margin-top: 0;
  }
  .content {
    padding: 28px 20px;
  }
}