/* ideadraw.app 소개·약관 페이지 — 색은 앱 디자인 토큰(docs/디자인/OnPaper-디자인-토큰.md)을 따른다 */
:root {
  --bg: #f3f2f2;
  --doc: #fdfcfc;
  --ink: #111110;
  --ink2: rgba(17, 17, 16, 0.78);
  --ink3: rgba(17, 17, 16, 0.6);
  --line: rgba(17, 17, 16, 0.12);
  --accent: #1a5fb4;
  --on-accent: #ffffff;
  --soft: rgba(26, 95, 180, 0.1);
  --radius: 10px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans KR", "Malgun Gothic", sans-serif;
  --mono: "JetBrains Mono", Consolas, ui-monospace, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #201f1e;
    --doc: #262523;
    --ink: #eae6e0;
    --ink2: rgba(234, 230, 224, 0.76);
    --ink3: rgba(234, 230, 224, 0.55);
    --line: rgba(234, 230, 224, 0.12);
    --accent: #7ba5dc;
    --on-accent: #201f1e;
    --soft: rgba(123, 165, 220, 0.14);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 var(--font);
}
a { color: var(--accent); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

header.top {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
header.top .wrap { display: flex; align-items: center; gap: 16px; height: 56px; }
.brand { font-weight: 700; font-size: 18px; letter-spacing: -0.01em; color: var(--ink); text-decoration: none; }
header.top nav { margin-left: auto; display: flex; align-items: center; gap: 18px; font-size: 15px; }
header.top nav a { color: var(--ink2); text-decoration: none; }
header.top nav a:hover { color: var(--ink); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 42px; padding: 0 20px; border-radius: 8px;
  font: 600 15px var(--font); text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: background 110ms, border-color 110ms;
}
.btn.primary { background: var(--accent); color: var(--on-accent); }
.btn.primary:hover { background: color-mix(in srgb, var(--accent) 88%, var(--ink)); }
.btn.ghost { border-color: var(--line); color: var(--ink); background: var(--doc); }
.btn.ghost:hover { border-color: color-mix(in srgb, var(--ink) 30%, transparent); }
header.top .btn { height: 34px; padding: 0 14px; font-size: 14px; }
header.top nav a.btn.primary { color: var(--on-accent); }

.hero { padding: 72px 0 40px; text-align: center; }
.hero h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.1; letter-spacing: -0.025em; margin: 0 0 18px; }
.hero p.lead { font-size: clamp(17px, 2.2vw, 20px); color: var(--ink2); max-width: 640px; margin: 0 auto 28px; }
.hero .cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero .note { margin-top: 14px; font-size: 14px; color: var(--ink3); }

.shot {
  margin: 40px auto 0; max-width: 1000px;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: var(--doc); box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}
.shot img { display: block; width: 100%; height: auto; }

section.block { padding: 56px 0; border-top: 1px solid var(--line); }
section.block h2 { font-size: clamp(24px, 3.4vw, 32px); letter-spacing: -0.02em; margin: 0 0 10px; }
section.block p.sub { color: var(--ink2); margin: 0 0 32px; max-width: 680px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--doc); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--ink2); font-size: 15px; }
.card .tag {
  display: inline-block; font: 600 12px var(--mono); color: var(--accent);
  background: var(--soft); border-radius: 5px; padding: 2px 7px; margin-bottom: 12px;
}
.card ul { margin: 10px 0 0; padding-left: 18px; color: var(--ink2); font-size: 15px; }

.feature { display: grid; grid-template-columns: 1fr 1.3fr; gap: 36px; align-items: center; padding: 28px 0; }
.feature.flip { grid-template-columns: 1.3fr 1fr; }
.feature.flip .text { order: 2; }
.feature h3 { font-size: 22px; margin: 0 0 10px; letter-spacing: -0.01em; }
.feature p, .feature li { color: var(--ink2); }
.feature ul { padding-left: 18px; margin: 12px 0 0; }
.feature .shot { margin: 0; }
@media (max-width: 760px) {
  .feature, .feature.flip { grid-template-columns: 1fr; gap: 18px; }
  .feature.flip .text { order: 0; }
}

.price { max-width: 560px; }
.price .card { padding: 28px; }
.price .amount { font-size: 36px; font-weight: 700; margin: 4px 0 6px; }

footer.bottom { border-top: 1px solid var(--line); padding: 28px 0 40px; font-size: 14px; color: var(--ink3); }
footer.bottom .wrap { display: flex; flex-wrap: wrap; gap: 10px 22px; align-items: center; }
footer.bottom a { color: var(--ink2); text-decoration: none; }
footer.bottom a:hover { color: var(--ink); }
footer.bottom .lang { margin-left: auto; }

/* 약관 */
article.legal { background: var(--doc); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(22px, 5vw, 48px); margin: 36px auto 48px; max-width: 820px; }
article.legal h1 { font-size: clamp(26px, 4vw, 34px); letter-spacing: -0.02em; margin: 0 0 6px; }
article.legal .meta { color: var(--ink3); font-size: 14px; margin: 0 0 28px; }
article.legal h2 { font-size: 19px; margin: 34px 0 10px; }
article.legal p, article.legal li { color: var(--ink2); }
article.legal table { border-collapse: collapse; width: 100%; font-size: 14px; margin: 10px 0; display: block; overflow-x: auto; }
article.legal th, article.legal td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
article.legal th { background: var(--bg); color: var(--ink); }

.center { text-align: center; }
.muted { color: var(--ink3); }