:root {
  --fg: #191f28;
  --fg-2: #4e5968;
  --muted: #8b95a1;
  --line: #e5e8eb;
  --soft: #f4f6fa;
  --blue: #3366ff;
  --blue-d: #2449d6;
  --blue-soft: #eef3ff;
  --green: #12b886;
  --orange: #ff8a3d;
  --purple: #7c5cff;
  --radius: 20px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; }
body {
  font-family: "Pretendard Variable", Pretendard, -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  background: #fff;
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  word-break: keep-all;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.wrap.narrow { max-width: 760px; }
.kicker { color: var(--blue); font-weight: 700; font-size: 15px; margin: 0 0 12px; }

/* 버튼 */
.btn {
  border: 0; cursor: pointer; font: inherit; font-weight: 700; border-radius: 12px;
  transition: background .15s, transform .15s, box-shadow .15s; white-space: nowrap;
}
.btn.sm { font-size: 14px; padding: 10px 16px; }
.btn.lg { font-size: 17px; padding: 16px 28px; border-radius: 14px; }
.btn.primary { background: var(--blue); color: #fff; }
.btn.primary:hover { background: var(--blue-d); }
.btn.lg.primary { box-shadow: 0 8px 20px rgba(51, 102, 255, .25); }
.btn.line { background: #fff; color: var(--fg); box-shadow: inset 0 0 0 1px var(--line); }
.btn.line:hover { background: var(--soft); }
.btn.white { background: #fff; color: var(--blue); }
.btn.white:hover { transform: translateY(-1px); }
.btn.ghost-w { background: rgba(255, 255, 255, .14); color: #fff; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .35); }
.btn.ghost-w:hover { background: rgba(255, 255, 255, .22); }

/* 헤더 */
.nav {
  position: sticky; top: 0; z-index: 10; background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(12px); border-bottom: 1px solid transparent; transition: border-color .2s;
}
.nav-in { display: flex; align-items: center; gap: 40px; height: 68px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 20px; letter-spacing: -.03em; }
.logo { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; background: var(--blue); color: #fff; font-size: 16px; }
.nav nav { display: flex; gap: 28px; flex: 1; font-size: 15px; font-weight: 500; color: var(--fg-2); }
.nav nav a:hover { color: var(--fg); }

/* 히어로 */
.hero { background: linear-gradient(180deg, #f5f8ff 0%, #fff 100%); padding: 72px 0 96px; }
.hero-in { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.badge {
  display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--blue);
  background: var(--blue-soft); padding: 7px 14px; border-radius: 999px; margin-bottom: 22px;
}
.badge i { width: 7px; height: 7px; border-radius: 50%; background: var(--blue); animation: pulse 1.8s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(51, 102, 255, .5); } 100% { box-shadow: 0 0 0 8px rgba(51, 102, 255, 0); } }
.hero h1 { font-size: clamp(36px, 5vw, 56px); line-height: 1.22; letter-spacing: -.04em; margin: 0; font-weight: 800; }
.hero h1 em { font-style: normal; color: var(--blue); }
.lead { font-size: clamp(16px, 1.8vw, 19px); line-height: 1.7; color: var(--fg-2); margin: 22px 0 34px; max-width: 520px; }
.cta { display: flex; gap: 10px; flex-wrap: wrap; }
.checks { list-style: none; padding: 0; margin: 26px 0 0; display: flex; gap: 20px; flex-wrap: wrap; color: var(--fg-2); font-size: 14px; }
.checks li { display: flex; align-items: center; gap: 6px; }
.checks li::before { content: "✓"; color: var(--green); font-weight: 800; }

.hero-art { position: relative; padding: 24px 0 24px 24px; }
.app {
  background: #fff; border-radius: 22px; padding: 20px; position: relative;
  box-shadow: 0 30px 60px -20px rgba(25, 31, 40, .18), 0 0 0 1px rgba(25, 31, 40, .04);
}
.app-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.app-top > b { font-size: 17px; }
.tabs { display: flex; gap: 4px; font-size: 12px; color: var(--muted); }
.tabs > * { padding: 5px 10px; border-radius: 999px; font-style: normal; }
.tabs em { background: var(--fg); color: #fff; }
.post { display: flex; align-items: center; gap: 12px; padding: 11px 6px; border-top: 1px solid #f1f3f5; }
.thumb { width: 44px; height: 44px; border-radius: 10px; flex: none; }
.t1 { background: linear-gradient(135deg, #a7e3c6, #4fb88a); }
.t2 { background: linear-gradient(135deg, #ffd8a8, #ff922b); }
.t3 { background: linear-gradient(135deg, #bac8ff, #5c7cfa); }
.t4 { background: linear-gradient(135deg, #eebefa, #be4bdb); }
.meta { flex: 1; min-width: 0; }
.meta b { display: block; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.meta small { color: var(--muted); font-size: 12px; }
.st { font-size: 12px; font-weight: 700; padding: 5px 9px; border-radius: 8px; flex: none; }
.st.ok { background: #e6f8f1; color: #0c9b70; }
.st.wait { background: #fff4e6; color: #e8590c; }
.float {
  position: absolute; display: flex; align-items: center; gap: 10px; background: #fff; border-radius: 16px;
  padding: 12px 16px; box-shadow: 0 16px 40px -12px rgba(25, 31, 40, .25); animation: bob 5s ease-in-out infinite;
}
.float small { display: block; font-size: 12px; color: var(--muted); }
.float b { font-size: 15px; }
.float b em { font-style: normal; color: var(--green); font-size: 13px; margin-left: 2px; }
.float .ico { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-size: 12px; font-weight: 800; }
.ico.up { background: #e6f8f1; color: var(--green); }
.ico.ai { background: var(--blue-soft); color: var(--blue); }
.f1 { top: 0; right: -10px; }
.f2 { bottom: 0; left: -10px; animation-delay: -2.5s; }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* 추천 대상 */
.who { padding: 88px 0; }
.who .kicker { text-align: center; color: var(--fg-2); font-size: 16px; margin-bottom: 24px; }
.who-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.who article { background: var(--soft); border-radius: var(--radius); padding: 28px; }
.emoji { font-size: 32px; display: block; margin-bottom: 14px; }
.who h3 { margin: 0 0 8px; font-size: 19px; letter-spacing: -.02em; }
.who p { margin: 0; color: var(--fg-2); line-height: 1.6; font-size: 15px; }

/* 섹션 공통 */
.sec-head { text-align: center; margin-bottom: 56px; }
.sec-head h2 { margin: 0; font-size: clamp(28px, 3.8vw, 42px); line-height: 1.3; letter-spacing: -.04em; }

/* 기능 */
.features { padding: 64px 0 40px; }
.feat { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; padding: 48px 0; }
.feat.rev .feat-text { order: 2; }
.tag { display: inline-block; font-size: 14px; font-weight: 700; padding: 6px 12px; border-radius: 8px; margin-bottom: 18px; }
.tag.blue { background: var(--blue-soft); color: var(--blue); }
.tag.green { background: #e6f8f1; color: #0c9b70; }
.tag.purple { background: #f1edff; color: var(--purple); }
.tag.orange { background: #fff4e6; color: #e8590c; }
.feat h3 { margin: 0 0 16px; font-size: clamp(26px, 3vw, 34px); line-height: 1.35; letter-spacing: -.035em; }
.feat p { margin: 0; color: var(--fg-2); font-size: 17px; line-height: 1.75; }
.feat-art { background: var(--soft); border-radius: 28px; padding: 36px; min-height: 300px; display: flex; flex-direction: column; justify-content: center; gap: 14px; }

.art-ai .field { background: #fff; border-radius: 14px; padding: 14px 18px; box-shadow: 0 1px 2px rgba(0, 0, 0, .04); }
.art-ai .field small { display: block; color: var(--muted); font-size: 12px; margin-bottom: 2px; }
.art-ai .gen { background: #fff; border-radius: 14px; padding: 18px; display: flex; flex-direction: column; gap: 9px; }
.ln { height: 10px; border-radius: 5px; background: #e9edf5; }
.w90 { width: 90%; } .w70 { width: 70%; } .w80 { width: 80%; }
.imgs { display: flex; gap: 8px; margin-top: 6px; }
.imgs i { flex: 1; height: 54px; border-radius: 10px; background: linear-gradient(135deg, #bac8ff, #748ffc); }
.imgs i:nth-child(2) { background: linear-gradient(135deg, #a7e3c6, #38d9a9); }
.imgs i:nth-child(3) { background: linear-gradient(135deg, #ffd8a8, #ffa94d); }
.fake-btn { align-self: flex-end; border: 0; background: var(--blue); color: #fff; font: inherit; font-weight: 700; font-size: 14px; padding: 11px 18px; border-radius: 12px; pointer-events: none; }

.art-cal .cal-head { display: flex; justify-content: space-between; align-items: baseline; }
.art-cal .cal-head span { font-size: 13px; color: var(--muted); }
.cal { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; text-align: center; }
.cal span { font-size: 12px; color: var(--muted); }
.cal i { font-style: normal; background: #fff; border-radius: 12px; padding: 14px 0; font-weight: 700; font-size: 15px; color: var(--muted); }
.cal i.on { background: var(--blue); color: #fff; }
.slot { background: #fff; border-radius: 12px; padding: 13px 16px; font-size: 14px; display: flex; align-items: center; gap: 10px; }
.dot { width: 8px; height: 8px; border-radius: 50%; }
.dot.g { background: var(--green); } .dot.b { background: var(--blue); }

.cmt { display: flex; gap: 10px; align-items: flex-start; }
.cmt.me { flex-direction: row-reverse; }
.av { width: 34px; height: 34px; border-radius: 50%; flex: none; }
.a1 { background: #ffc9c9; } .a2 { background: var(--blue); } .a3 { background: #b2f2bb; }
.cmt p { margin: 0; background: #fff; border-radius: 4px 16px 16px 16px; padding: 10px 14px; font-size: 14px; color: var(--fg); line-height: 1.5; }
.cmt.me p { background: var(--blue); color: #fff; border-radius: 16px 4px 16px 16px; }
.cmt p b { display: block; font-size: 12px; margin-bottom: 2px; opacity: .65; }

.art-rank .rank-head { display: flex; justify-content: space-between; align-items: center; }
.art-rank .up { color: var(--green); font-weight: 800; }
.chart { width: 100%; height: auto; background: #fff; border-radius: 14px; padding: 12px; }
.kw { display: flex; gap: 8px; flex-wrap: wrap; }
.kw span { background: #fff; border-radius: 999px; padding: 7px 12px; font-size: 13px; color: var(--fg-2); }
.kw b { color: var(--fg); }

/* 이용 방법 */
.flow { padding: 96px 0; background: var(--soft); margin-top: 48px; }
.flow ol { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: s; }
.flow li { background: #fff; border-radius: var(--radius); padding: 30px; }
.flow li b { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--blue-soft); color: var(--blue); font-size: 17px; margin-bottom: 18px; }
.flow h4 { margin: 0 0 8px; font-size: 19px; letter-spacing: -.02em; }
.flow p { margin: 0; color: var(--fg-2); line-height: 1.6; font-size: 15px; }

/* FAQ */
.faq { padding: 104px 0; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 24px 4px; font-size: 18px; font-weight: 700; letter-spacing: -.02em;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 24px; font-weight: 400; color: var(--muted); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 4px 24px; color: var(--fg-2); line-height: 1.75; font-size: 16px; }

/* 마지막 CTA */
.final { padding: 0 0 96px; }
.final-in {
  background: linear-gradient(120deg, #3366ff 0%, #5b5bff 100%); color: #fff; border-radius: 32px;
  padding: 56px 56px; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
  max-width: 1100px;
}
.final h2 { margin: 0 0 10px; font-size: clamp(26px, 3.2vw, 36px); line-height: 1.35; letter-spacing: -.035em; }
.final p { margin: 0; opacity: .85; }
.final p a { text-decoration: underline; text-underline-offset: 3px; }

/* 푸터 */
.foot { border-top: 1px solid var(--line); padding: 40px 0 32px; color: var(--muted); font-size: 14px; }
.foot-in { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.foot .brand { color: var(--fg); font-size: 18px; margin-bottom: 8px; }
.foot p { margin: 0; }
.foot-links { display: flex; gap: 24px; }
.foot-links a:hover { color: var(--fg); }
.copy { margin-top: 28px; font-size: 13px; }

@media (max-width: 960px) {
  .hero-in, .feat { grid-template-columns: 1fr; gap: 40px; }
  .feat.rev .feat-text { order: 0; }
  .hero { padding: 48px 0 72px; }
  .hero-art { max-width: 520px; padding-left: 0; }
  .who-grid, .flow ol { grid-template-columns: 1fr; }
  .feat { padding: 32px 0; }
}
@media (max-width: 640px) {
  .nav nav { display: none; }
  .nav-in { justify-content: space-between; }
  .hero h1 br { display: none; }
  .cta .btn.lg { flex: 1; padding: 15px 18px; }
  .feat-art { padding: 24px; min-height: 0; }
  .final-in { padding: 40px 24px; border-radius: 24px; margin: 0 4px; }
  .float { padding: 10px 12px; }
  .f1 { right: 0; } .f2 { left: 0; }
  .sec-head h2 br { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .float, .badge i { animation: none; }
}

/* 그리드 칸이 줄바꿈 안 되는 글자 때문에 넘치지 않게 */
.hero-in > *, .feat > *, .who-grid > *, .flow ol > * { min-width: 0; }
section[id] { scroll-margin-top: 72px; }

/* 언어 전환 */
.nav-right { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.lang { display: flex; align-items: center; gap: 2px; font-size: 13px; font-weight: 700; background: var(--soft); border-radius: 999px; padding: 3px; }
.lang > * { padding: 5px 10px; border-radius: 999px; color: var(--muted); }
.lang b { background: #fff; color: var(--fg); box-shadow: 0 1px 3px rgba(0, 0, 0, .08); }
.lang a:hover { color: var(--fg); }
.en .hero h1 { letter-spacing: -.035em; }
@media (max-width: 640px) {
  .nav-in { gap: 12px; }
}
@media (max-width: 480px) {
  .nav-right .btn { display: none; }
}