/* OFFICESTRA 소개 페이지 공통 스타일 */
:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1c1c1e;
  --muted: #5f6368;
  --card: #f4f5f7;
  --line: #e2e4e8;
  --accent: #2f6fed;
  --accent-fg: #ffffff;
  --code-bg: #f0f1f4;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101114;
    --fg: #f2f2f4;
    --muted: #a5a8b0;
    --card: #1a1c21;
    --line: #2a2d34;
    --accent: #6d9cff;
    --accent-fg: #0b1220;
    --code-bg: #1e2027;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Segoe UI",
    Roboto, "Noto Sans KR", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  font-size: 15px;
}
.top .brand { font-weight: 700; letter-spacing: 0.04em; color: var(--fg); }
.top nav a { margin-left: 18px; color: var(--muted); }

.hero { padding: 40px 0 24px; text-align: center; }
.hero h1 { font-size: 40px; line-height: 1.2; margin: 0 0 12px; letter-spacing: -0.01em; }
.hero .lead { font-size: 20px; margin: 0 auto 8px; max-width: 720px; }
.hero .sub { color: var(--muted); margin: 0 auto 24px; max-width: 720px; }
.hero .meta { color: var(--muted); font-size: 15px; margin: 0 0 24px; }

.buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 11px 20px;
  border-radius: 10px;
  border: 1px solid var(--line);
  color: var(--fg);
  font-weight: 600;
  background: var(--card);
}
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.btn:hover { text-decoration: none; filter: brightness(1.05); }

.shot { margin: 32px 0 0; }
.shot img { width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--line); display: block; }
.shot .tagline { text-align: center; font-weight: 600; margin: 14px 0 0; }

section { padding: 48px 0 0; }
section h2 { font-size: 28px; line-height: 1.3; margin: 0 0 12px; letter-spacing: -0.01em; }
section > p { margin: 0 0 8px; }

.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 20px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }

.modes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 20px; }
.modes figure { margin: 0; }
.modes img { width: 100%; height: auto; border-radius: 10px; border: 1px solid var(--line); display: block; }
.modes figcaption { text-align: center; margin-top: 10px; }
.modes figcaption strong { display: block; }
.modes figcaption span { color: var(--muted); font-size: 15px; }

ul.plain { padding-left: 22px; margin: 12px 0 0; }
ul.plain li { margin: 6px 0; }

blockquote {
  margin: 16px 0;
  padding: 14px 18px;
  border-left: 4px solid var(--accent);
  background: var(--card);
  border-radius: 0 10px 10px 0;
}
blockquote p { margin: 0; }

pre {
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  overflow-x: auto;
  font-size: 14.5px;
  line-height: 1.5;
}
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.note { color: var(--muted); font-size: 15px; }

footer {
  margin-top: 56px;
  padding: 24px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

@media (max-width: 700px) {
  body { font-size: 16px; }
  .hero h1 { font-size: 30px; }
  .hero .lead { font-size: 18px; }
  .grid, .modes { grid-template-columns: 1fr; }
  section h2 { font-size: 24px; }
}