/* studios1950 공유 스타일 — 편한스케줄 앱의 톤과 같은 컬러/타이포 가족 */

:root {
  --brand-blue: #4F82E0;
  --bg: #F4F5F7;
  --surface: #FFFFFF;
  --text-primary: #1E1E1E;
  --text-secondary: #5A5A5A;
  --text-tertiary: #9E9E9E;
  --border: #E5E7EB;
}

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

html {
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
               "Pretendard", "Noto Sans KR", sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 24px 96px;
}

header.doc-header {
  margin-bottom: 32px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 24px;
}

header.doc-header h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

header.doc-header .meta {
  color: var(--text-tertiary);
  font-size: 14px;
}

p.intro {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 32px;
  padding: 20px;
  background: var(--surface);
  border-radius: 12px;
  border: 1px solid var(--border);
}

section {
  margin-bottom: 28px;
}

section h2 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.2px;
}

section p, section li {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
  white-space: pre-wrap;
}

footer.doc-footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-tertiary);
  font-size: 13px;
}

footer.doc-footer a {
  color: var(--brand-blue);
  text-decoration: none;
}

footer.doc-footer a:hover {
  text-decoration: underline;
}

/* 랜딩 페이지 전용 */
.landing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 24px;
}

.landing h1 {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 12px;
}

.landing p.tagline {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 48px;
}

.landing .app-grid {
  display: grid;
  gap: 12px;
  width: 100%;
  max-width: 420px;
}

.landing .app-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 24px;
  text-align: left;
  text-decoration: none;
  color: var(--text-primary);
  transition: border-color 0.2s, transform 0.1s;
}

.landing .app-card:hover {
  border-color: var(--brand-blue);
}

.landing .app-card:active {
  transform: scale(0.98);
}

.landing .app-name {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}

.landing .app-desc {
  font-size: 13px;
  color: var(--text-tertiary);
}

@media (max-width: 480px) {
  main {
    padding: 32px 20px 64px;
  }
  header.doc-header h1 {
    font-size: 24px;
  }
}