/* ============================================================
   STOREMATE SITE — 홈페이지 전용 (app.css 이후 로드: 변수·버튼·레일 재사용)
   ============================================================ */
body{background:#fff}

/* ---------- 네비게이션 ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line)}
.nav-in{max-width:1120px;margin:0 auto;height:64px;display:flex;align-items:center;gap:26px;padding:0 24px}
.nav-logo{display:flex;align-items:center;gap:9px;font-size:16.5px;font-weight:800;letter-spacing:-.02em}
.nav-menu{display:flex;gap:4px;margin-left:8px}
.nav-menu a{padding:8px 13px;border-radius:9px;font-size:13.5px;font-weight:600;color:var(--sub)}
.nav-menu a:hover{background:var(--line-soft);color:var(--ink)}
.nav-right{margin-left:auto;display:flex;gap:9px;align-items:center}

/* ---------- 공통 섹션 ---------- */
.sec{max-width:1120px;margin:0 auto;padding:88px 24px}
.sec-lbl{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:800;color:var(--brand);
  background:var(--brand-soft);border-radius:99px;padding:6px 14px;margin-bottom:16px}
.sec-lbl.ai{color:var(--ai);background:var(--ai-soft)}
.sec h2{font-size:34px;font-weight:800;letter-spacing:-.03em;line-height:1.28}
.sec .sub{font-size:16px;color:var(--sub);font-weight:500;margin-top:14px;line-height:1.7}

/* ---------- 히어로 ---------- */
.hero{background:
  radial-gradient(900px 420px at 78% -10%, rgba(124,92,252,.10), transparent),
  radial-gradient(1100px 520px at 18% -18%, rgba(46,75,242,.12), transparent);
  border-bottom:1px solid var(--line)}
.hero .sec{padding:96px 24px 80px;text-align:center}
.hero h1{font-size:50px;font-weight:800;letter-spacing:-.035em;line-height:1.22}
.hero h1 .hl{color:var(--brand)}
.hero h1 .hl-ai{background:linear-gradient(90deg,var(--ai),var(--brand));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{font-size:17.5px;color:var(--sub);margin:20px auto 0;max-width:640px;line-height:1.75;font-weight:500}
.hero-cta{display:flex;gap:11px;justify-content:center;margin-top:32px}
.hero-note{font-size:12.5px;color:var(--mut);font-weight:600;margin-top:14px}
.hero-rail{max-width:860px;margin:52px auto 0;background:var(--card);border:1px solid var(--line);
  border-radius:18px;box-shadow:0 18px 50px rgba(18,23,43,.09);padding:28px 30px}

/* 마켓 로고 스트립 */
.strip{border-top:1px solid var(--line-soft);padding:26px 24px;display:flex;gap:14px;justify-content:center;
  align-items:center;flex-wrap:wrap}
.strip small{font-size:12px;color:var(--mut);font-weight:700;width:100%;text-align:center;margin-bottom:2px}
.strip .mchip{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:99px;
  padding:7px 15px;font-size:13px;font-weight:700;background:#fff}
.strip .mdot{width:9px;height:9px;border-radius:3px}

/* ---------- 3단계 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:44px}
.step-c{border:1px solid var(--line);border-radius:16px;padding:26px 24px;background:var(--card);position:relative}
.step-n{width:32px;height:32px;border-radius:10px;background:var(--brand);color:#fff;font-weight:800;font-size:14px;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.step-c h4{font-size:16.5px;font-weight:800;margin-bottom:9px}
.step-c p{font-size:13.5px;color:var(--sub);line-height:1.7;font-weight:500}

/* ---------- 기능 카드 ---------- */
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:44px}
.feat{border:1px solid var(--line);border-radius:16px;padding:24px;background:var(--card);transition:.15s}
.feat:hover{box-shadow:0 12px 30px rgba(18,23,43,.08);transform:translateY(-2px)}
.feat .f-ic{width:42px;height:42px;border-radius:12px;background:var(--brand-soft);display:flex;align-items:center;
  justify-content:center;margin-bottom:15px;font-size:19px}
.feat.ai .f-ic{background:var(--ai-soft)}
.feat h4{font-size:15.5px;font-weight:800;margin-bottom:8px}
.feat p{font-size:13px;color:var(--sub);line-height:1.7;font-weight:500}

/* ---------- AI 섹션 ---------- */
.ai-band{background:linear-gradient(135deg,#17123B,#241A5E 55%,#1B2CC1);color:#fff;border-radius:24px;
  padding:60px 56px;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.ai-band h2{color:#fff}
.ai-band .sub{color:#C9C4EE}
.ai-list{list-style:none;margin-top:26px;display:flex;flex-direction:column;gap:14px}
.ai-list li{display:flex;gap:12px;font-size:14px;font-weight:600;color:#E4E1FA;line-height:1.55}
.ai-list li b{color:#fff}
.ai-list .a-ic{width:26px;height:26px;border-radius:8px;background:rgba(255,255,255,.14);display:flex;
  align-items:center;justify-content:center;flex-shrink:0;font-size:13px}
.ai-demo{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:22px}
.ai-demo .row-t{font-size:11.5px;font-weight:800;color:#B4ACF0;letter-spacing:.04em;margin-bottom:9px}
.ai-demo .box{background:rgba(0,0,0,.24);border-radius:10px;padding:12px 14px;font-size:13px;line-height:1.6;font-weight:500}
.ai-demo .arr{ text-align:center;padding:9px 0;color:#B4ACF0;font-size:15px}
.ai-demo .box.out{background:rgba(255,255,255,.95);color:var(--ink);font-weight:700}

/* ---------- 요금제 프리뷰/페이지 ---------- */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}

/* ---------- FAQ ---------- */
.faq{max-width:780px;margin:40px auto 0}
.faq-i{border:1px solid var(--line);border-radius:13px;background:var(--card);margin-bottom:10px;overflow:hidden}
.faq-q{width:100%;text-align:left;display:flex;align-items:center;gap:12px;padding:17px 20px;font-size:14.5px;
  font-weight:700;background:none;border:none;cursor:pointer;font-family:inherit;color:var(--ink)}
.faq-q:hover{background:var(--line-soft)}
.faq-q .caret{margin-left:auto;color:var(--mut);transition:.15s}
.faq-a{display:none;padding:0 20px 18px 20px;font-size:13.5px;color:var(--sub);line-height:1.75;font-weight:500}
.faq-i.open .faq-a{display:block}
.faq-i.open .caret{transform:rotate(180deg)}

/* ---------- CTA 밴드 ---------- */
.cta-band{background:linear-gradient(120deg,var(--brand),var(--brand-2));border-radius:24px;text-align:center;
  color:#fff;padding:64px 40px}
.cta-band h2{color:#fff;font-size:30px}
.cta-band p{color:#D8DEFF;font-size:15px;font-weight:500;margin-top:12px}

/* ---------- 푸터 ---------- */
.footer{border-top:1px solid var(--line);background:#FBFCFE;margin-top:40px}
.footer .sec{padding:48px 24px 40px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer h5{font-size:12.5px;font-weight:800;color:var(--mut);margin-bottom:13px;letter-spacing:.03em}
.footer a{display:block;font-size:13px;color:var(--sub);font-weight:600;padding:4px 0}
.footer a:hover{color:var(--brand)}
.foot-info{font-size:12px;color:var(--mut);line-height:1.9;font-weight:500}
.foot-btm{border-top:1px solid var(--line-soft);padding:18px 24px;max-width:1120px;margin:0 auto;
  display:flex;gap:16px;align-items:center;font-size:12px;color:var(--mut);font-weight:600}

/* ---------- 인증(로그인/가입) ---------- */
.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}
.auth-side{background:linear-gradient(160deg,var(--brand-2),#17123B);color:#fff;padding:56px;
  display:flex;flex-direction:column;justify-content:space-between}
.auth-side h2{color:#fff;font-size:27px;font-weight:800;line-height:1.4;letter-spacing:-.02em}
.auth-side .pt{font-size:13.5px;color:#C6CDF6;line-height:1.8;font-weight:500;margin-top:14px}
.auth-main{display:flex;align-items:center;justify-content:center;padding:40px 24px}
.auth-card{width:100%;max-width:420px}
.auth-card h1{font-size:23px;font-weight:800;letter-spacing:-.02em;margin-bottom:6px}
.auth-card .desc{font-size:13.5px;color:var(--sub);font-weight:500;margin-bottom:26px}
.auth-foot{margin-top:22px;font-size:13px;color:var(--sub);font-weight:600;text-align:center}
.auth-foot a{color:var(--brand);font-weight:700}

/* ---------- 반응형 ---------- */
@media(max-width:960px){
  .nav-menu{display:none}
  .hero h1{font-size:34px}
  .sec{padding:60px 20px}
  .sec h2{font-size:26px}
  .steps,.feats{grid-template-columns:1fr}
  .plans{grid-template-columns:1fr 1fr}
  .ai-band{grid-template-columns:1fr;padding:40px 28px}
  .footer .sec{grid-template-columns:1fr 1fr}
  .auth-wrap{grid-template-columns:1fr}
  .auth-side{display:none}
}
@media(max-width:560px){.plans{grid-template-columns:1fr}}

/* ---------- 플랜 카드 (index/pricing 공용 — app/plan.html과 동일 스펙) ---------- */
.pl-card{border:1.5px solid var(--line);border-radius:14px;padding:22px 20px;background:var(--card);position:relative;display:flex;flex-direction:column}
.pl-card.hot{border-color:var(--ai);box-shadow:0 8px 28px rgba(124,92,252,.14)}
.pl-badge{position:absolute;top:-11px;left:20px;background:var(--ai);color:#fff;font-size:11px;font-weight:800;border-radius:99px;padding:3px 12px}
.pl-name{font-size:14.5px;font-weight:800}
.pl-price{font-size:26px;font-weight:800;margin:10px 0 2px}
.pl-price small{font-size:12.5px;color:var(--mut);font-weight:600}
.pl-ft{list-style:none;margin:14px 0 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.pl-ft li{font-size:12.8px;font-weight:600;color:var(--sub);display:flex;gap:7px}
.pl-ft li::before{content:'✓';color:var(--ok);font-weight:800}
.pl-ft li.no{color:var(--mut)}
.pl-ft li.no::before{content:'—';color:var(--mut)}
.pl-ft li.ai-f{color:var(--ai)}
.pl-ft li.ai-f::before{content:'✦';color:var(--ai)}