/* mono.kim - RFC Style CSS */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Mono:wght@400;700&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  font-family: "Noto Sans Mono", monospace;
  line-height: 1.5;
  background: #fff;
  color: #000;
  padding-top: 3rem;
}

a {
  color: #0000ee;
}

a:visited {
  color: #551a8b;
}

a:hover,
a:focus {
  text-decoration: none;
}

/* 상단 고정 네비게이션 */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid #000;
  padding: 0.5rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav a {
  text-decoration: none;
}

nav a:hover {
  text-decoration: underline;
}

.site-name {
  font-weight: bold;
}

/* 본문 */
main {
  max-width: 80ch;
  margin: 0 auto;
  padding: 2rem 1rem;
}

h1, h2, h3 {
  font-weight: normal;
  margin: 1.5rem 0 1rem;
}

h1 {
  border-bottom: 1px solid #000;
  padding-bottom: 0.5rem;
}

p {
  margin: 1rem 0;
}

ul, ol {
  margin: 1rem 0;
  padding-left: 2rem;
}

li {
  margin: 0.25rem 0;
}

/* RFC 스타일 섹션 번호 */
.section-num {
  margin-right: 1rem;
}

/* 파일 목록 */
.file-list {
  list-style: none;
  padding-left: 0;
}

.file-list li {
  padding: 0.25rem 0;
}

.file-size {
  color: #666;
  margin-left: 1rem;
}

/* 에세이 목록 */
.essay-list {
  list-style: none;
  padding-left: 0;
}

.essay-list li {
  padding: 0.5rem 0;
  border-bottom: 1px dashed #ccc;
}

.essay-date {
  color: #666;
  margin-right: 1rem;
}

/* 푸터 */
footer {
  max-width: 80ch;
  margin: 2rem auto;
  padding: 1rem;
  border-top: 1px solid #000;
  text-align: center;
  color: #666;
}

/* 스킵 링크 */
.skip-link {
  position: absolute;
  left: -9999px;
}

.skip-link:focus {
  left: 1rem;
  top: 4rem;
  background: #000;
  color: #fff;
  padding: 0.5rem;
}