/* 홈페이지 — 앱과 같은 따뜻한 베이지/갈색/테라코타 톤. 외부 폰트·CDN 없음. */
:root {
  --paper: #f1ecde;
  --desk: #e7dcc3;
  --card: #fffaf0;
  --ink: #5b3d29;
  --ink-soft: #78563f;       /* 본문 보조색: 베이지 배경에서 4.5:1 이상 */
  --line: #6a3a2c;
  --wood: #a9714a;
  --accent: #e8874a;
  --accent-deep: #b9561f;    /* 흰 글씨가 읽히는 버튼색 */
  --green: #3f7a45;
  --green-soft: #dcead2;
  --radius: 16px;
  --shadow: 0 3px 0 rgba(106, 58, 44, .14);
  --max: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: system-ui, -apple-system, 'Apple SD Gothic Neo', 'Noto Sans KR', 'Segoe UI', sans-serif;
  line-height: 1.7; font-size: 17px; -webkit-text-size-adjust: 100%;
}
img { max-width: 100%; height: auto; }
a { color: var(--accent-deep); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--accent-deep); outline-offset: 3px; border-radius: 6px; }
.skip { position: absolute; left: 12px; top: -60px; background: var(--card); border: 2px solid var(--line); border-radius: 999px; padding: 8px 16px; z-index: 10; }
.skip:focus { top: 12px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
h1, h2, h3 { line-height: 1.3; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.4vw, 2rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
.soft { color: var(--ink-soft); }
.small { font-size: .9rem; }

/* 머리말 */
.top { border-bottom: 2px solid var(--line); background: var(--card); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 10px; padding-bottom: 10px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--ink); text-decoration: none; }
.brand img { width: 40px; height: 40px; }
.nav { display: flex; gap: 6px 16px; align-items: center; flex-wrap: wrap; font-size: .95rem; }
.nav a { color: var(--ink); text-decoration: none; padding: 4px 2px; }
.nav a:hover { text-decoration: underline; }
.lang-btn { font: inherit; font-size: .9rem; background: var(--paper); color: var(--ink); border: 1.5px solid var(--line); border-radius: 999px; padding: 4px 14px; cursor: pointer; }
.lang-btn:hover { background: var(--desk); }

/* 버튼 */
.btn { display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 0; min-height: 52px; padding: 8px 24px; border: 2px solid var(--line); border-radius: 999px; background: var(--card); color: var(--ink); font-weight: 700; text-decoration: none; box-shadow: var(--shadow); line-height: 1.3; }
.btn small { font-weight: 500; font-size: .8rem; }
.btn:hover { background: var(--desk); color: var(--ink); }
.btn.primary { background: var(--accent-deep); color: #fff; border-color: var(--line); }
.btn.primary:hover { background: #9c4617; color: #fff; }
.btn.is-pending { opacity: .7; cursor: not-allowed; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0 8px; }

/* 히어로 */
.hero { padding: 48px 0 40px; }
.hero .wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; align-items: center; }
.hero .lead { font-size: 1.2rem; max-width: 34em; }
.hero-art { display: flex; justify-content: center; }
.hero-art img { width: min(300px, 70%); filter: drop-shadow(0 6px 0 rgba(106, 58, 44, .18)); }
.badge { display: inline-block; background: var(--green-soft); color: #2f5a34; border: 1.5px solid var(--line); border-radius: 999px; padding: 2px 14px; font-size: .88rem; font-weight: 700; margin-bottom: 14px; }

/* 섹션 */
section { padding: 52px 0; }
section.alt { background: var(--desk); border-top: 2px solid var(--line); border-bottom: 2px solid var(--line); }
.section-lead { max-width: 40em; color: var(--ink-soft); }

/* 스크린샷 */
.shots { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 26px; }
figure { margin: 0; background: var(--card); border: 2px solid var(--line); border-radius: var(--radius); padding: 10px; box-shadow: var(--shadow); }
figure img { display: block; width: 100%; border-radius: 10px; border: 1px solid rgba(106, 58, 44, .35); }
figcaption { padding: 10px 6px 2px; font-size: .95rem; color: var(--ink-soft); }
figure.wide { grid-column: 1 / -1; }

/* 카드 */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-top: 26px; }
.card { background: var(--card); border: 2px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.card .emoji { font-size: 1.8rem; display: block; margin-bottom: 6px; }
.card p:last-child { margin-bottom: 0; }
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; margin-top: 34px; }
.feature.flip .text { order: 2; }
.modes { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 8px; }
.modes li { background: var(--card); border: 1.5px solid var(--line); border-radius: 12px; padding: 8px 14px; }

/* 단계 */
.steps { counter-reset: s; list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 14px; }
.steps li { counter-increment: s; background: var(--card); border: 2px solid var(--line); border-radius: var(--radius); padding: 16px 18px 16px 64px; position: relative; box-shadow: var(--shadow); }
.steps li::before { content: counter(s); position: absolute; left: 16px; top: 14px; width: 32px; height: 32px; border-radius: 50%; background: var(--accent-deep); color: #fff; font-weight: 800; display: grid; place-items: center; }
.note { background: var(--green-soft); border: 1.5px solid var(--line); border-radius: 12px; padding: 12px 16px; color: #2f4a32; }
.tbd { background: #fff1c2; border: 1px dashed var(--line); border-radius: 6px; padding: 0 6px; font-size: .85em; white-space: nowrap; }

/* FAQ */
details { background: var(--card); border: 2px solid var(--line); border-radius: 14px; padding: 4px 18px; margin: 0 0 12px; box-shadow: var(--shadow); }
summary { cursor: pointer; font-weight: 700; padding: 12px 0; }
details[open] summary { border-bottom: 1px dashed var(--wood); margin-bottom: 10px; }
details p { margin-bottom: .8em; }

/* 푸터 */
footer { background: var(--card); border-top: 2px solid var(--line); padding: 30px 0 40px; font-size: .95rem; }
footer .cols { display: flex; gap: 12px 28px; flex-wrap: wrap; align-items: center; justify-content: space-between; }
footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 20px; }

/* 문서 페이지 (개인정보/약관/서드파티) */
.doc { padding: 36px 20px 60px; max-width: 800px; }
.doc h2 { margin-top: 1.8em; font-size: 1.35rem; }
.doc ul, .doc ol { padding-left: 1.3em; }
.draft { background: #ffe9a8; border: 2px solid var(--line); border-radius: 12px; padding: 14px 18px; font-weight: 700; margin: 0 0 22px; }
.doc pre { background: var(--card); border: 1.5px solid var(--line); border-radius: 10px; padding: 12px 14px; overflow-x: auto; white-space: pre-wrap; word-break: break-word; font-size: .82rem; line-height: 1.5; }
.doc table { table-layout: fixed; border-collapse: collapse; width: 100%; font-size: .95rem; }
.doc th, .doc td { overflow-wrap: anywhere; border: 1px solid var(--wood); padding: 6px 10px; text-align: left; }
.doc th { background: var(--desk); }
.summary-en { background: var(--card); border: 2px solid var(--line); border-radius: var(--radius); padding: 16px 20px; margin-top: 36px; }

@media (max-width: 820px) {
  body { font-size: 16px; }
  .hero .wrap, .feature { grid-template-columns: 1fr; }
  .feature.flip .text { order: 0; }
  .hero-art { order: -1; }
  .hero-art img { width: 160px; }
  .shots { grid-template-columns: 1fr; }
  section { padding: 38px 0; }
  .btn { width: 100%; }
}

/* 인라인 style 속성 대신 쓰는 여백 도우미 (CSP: style-src 'self') */
.u-m0 { margin: 0; }
.u-mt0 { margin-top: 0; }
.u-mt14 { margin: 14px 0 0; }
.u-mt20 { margin-top: 20px; }

/* 404 페이지 */
.notfound { text-align: center; padding: 48px 20px 80px; max-width: 640px; }
.notfound h1 { margin-top: 12px; }
.notfound h2 { margin-top: 2em; font-size: 1.15rem; }
.notfound .lead { font-size: 1.1rem; }

/* 긴 경로가 좁은 화면을 넘치지 않게 */
code { overflow-wrap: anywhere; }