/* content.css — 리소스/블로그 페이지 공용 (landing 디자인 토큰 재사용) */
:root {
  --bg: #0c0b10;
  --surface: #ffffff;
  --ink: #16151c;
  --ink-soft: #51505e;
  --muted: #8a8895;
  --line: #ecebf1;
  --accent: #6c5ce7;
  --accent-2: #ff7a59;
  --accent-soft: #efedfd;
  --radius: 20px;
  --shadow-sm: 0 1px 3px rgba(18, 16, 32, 0.06), 0 8px 24px rgba(18, 16, 32, 0.06);
  --max: 760px;
}

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

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #fbfbfd;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: "Fraunces", "Inter", Georgia, serif; letter-spacing: -0.01em; line-height: 1.15; }

.nav {
  max-width: 1120px; margin: 0 auto; padding: 18px 28px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 50;
  background: rgba(251, 251, 253, 0.85); backdrop-filter: saturate(180%) blur(16px);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 700; }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.nav-right { display: flex; align-items: center; gap: 18px; }
.nav-link { color: var(--ink-soft); text-decoration: none; font-size: 14.5px; font-weight: 500; }
.nav-link:hover { color: var(--ink); }
.lang-toggle { display: flex; border: 1px solid var(--line); border-radius: 99px; overflow: hidden; font-size: 13px; }
.lang-toggle a { padding: 4px 12px; text-decoration: none; color: var(--ink-soft); }
.lang-toggle a.active { background: var(--ink); color: #fff; }
.nav-cta {
  background: var(--ink); color: #fff; text-decoration: none; font-size: 14px; font-weight: 600;
  padding: 9px 18px; border-radius: 99px;
}

main.article { max-width: var(--max); margin: 0 auto; padding: 40px 24px 80px; }
.crumbs { font-size: 13.5px; color: var(--muted); margin-bottom: 22px; }
.crumbs a { color: var(--muted); }
main.article h1 { font-size: clamp(30px, 5vw, 44px); margin-bottom: 14px; }
.byline { color: var(--muted); font-size: 14px; margin-bottom: 34px; }
main.article h2 { font-size: 25px; margin: 44px 0 14px; }
main.article h3 { font-size: 19px; margin: 30px 0 10px; }
main.article p { margin: 14px 0; color: var(--ink-soft); }
main.article li { margin: 8px 0 8px 4px; color: var(--ink-soft); }
main.article ul, main.article ol { padding-left: 22px; }
main.article b, main.article strong { color: var(--ink); }
main.article a { color: var(--accent); }

.keydef {
  background: var(--accent-soft); border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0; padding: 18px 22px; margin: 24px 0;
  font-size: 17px; color: var(--ink);
}

.tbl-wrap { overflow-x: auto; margin: 22px 0; }
table.cmp { border-collapse: collapse; width: 100%; min-width: 640px; font-size: 14.5px; background: var(--surface); border-radius: 12px; box-shadow: var(--shadow-sm); }
table.cmp th, table.cmp td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
table.cmp th { font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
table.cmp td:first-child { font-weight: 600; color: var(--ink); }
table.cmp .hl { background: #f6f4ff; }

.cta-box {
  background: var(--bg); color: #d8d6e4; border-radius: var(--radius);
  padding: 30px 30px 32px; margin: 46px 0 10px; text-align: center;
}
.cta-box h2 { color: #fff; margin: 0 0 8px; font-size: 24px; }
.cta-box p { color: #b9b6c9; margin: 0 0 20px; }
.btn-primary,
main.article a.btn-primary {
  display: inline-block; background: var(--accent); color: #fff; text-decoration: none;
  font-weight: 600; padding: 13px 26px; border-radius: 99px;
}
.btn-ghost,
main.article a.btn-ghost {
  display: inline-block; color: var(--ink-soft); text-decoration: none; font-weight: 600;
  padding: 13px 22px; border-radius: 99px; border: 1px solid var(--line); margin-left: 10px;
}
.cta-box .btn-ghost,
main.article .cta-box a.btn-ghost { color: #d8d6e4; border-color: rgba(255, 255, 255, 0.28); }

.disclaimer { font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); margin-top: 46px; padding-top: 18px; }
.sources { font-size: 13.5px; color: var(--muted); }
.sources a { color: var(--muted); }

/* 블로그 인덱스 카드 */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 18px; margin: 26px 0; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; text-decoration: none; box-shadow: var(--shadow-sm); transition: transform 0.15s ease;
}
.card:hover { transform: translateY(-3px); }
.card .tag { font-size: 11.5px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); }
.card h3 { margin: 8px 0 6px; color: var(--ink); font-size: 18px; }
.card p { color: var(--ink-soft); font-size: 14px; margin: 0; }

footer.foot { max-width: var(--max); margin: 0 auto; padding: 26px 24px 50px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line); }
footer.foot a { color: var(--muted); }

/* 깜빡임 테스트 툴 */
.tool { text-align: center; }
.tool-stage {
  position: relative; max-width: 560px; margin: 26px auto; border-radius: var(--radius);
  overflow: hidden; background: #16151c; box-shadow: var(--shadow-sm); aspect-ratio: 4 / 3;
}
.tool-stage video { width: 100%; height: 100%; object-fit: cover; transform: scaleX(-1); display: block; }
.tool-overlay {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 10px; color: #fff; background: rgba(12, 11, 16, 0.55); padding: 24px;
}
.tool-overlay.hidden { display: none; }
.tool-big { font-size: 44px; font-weight: 800; font-family: "Fraunces", Georgia, serif; }
.tool-hud {
  position: absolute; left: 0; right: 0; bottom: 0; display: flex; justify-content: space-between;
  padding: 12px 16px; color: #fff; font-weight: 700; font-size: 15px;
  background: linear-gradient(transparent, rgba(12, 11, 16, 0.75)); text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}
.tool-result {
  max-width: 560px; margin: 0 auto 10px; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm);
}
.tool-result .tool-big { color: var(--ink); }
.tool-note { font-size: 13px; color: var(--muted); margin-top: 12px; }
.pill-row { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin: 14px 0 4px; }
.pill { font-size: 12.5px; border: 1px solid var(--line); background: var(--surface); border-radius: 99px; padding: 5px 12px; color: var(--ink-soft); }

@media (max-width: 640px) {
  .nav { padding: 14px 18px; }
  .nav-link { display: none; }
}