/* ============================================================
   폰글래스 소개 사이트 디자인 시스템 (site.css)
   다크 프리미엄 · 보라 액센트 · 모바일 퍼스트
   ============================================================ */
:root{
  --bg:#070b16; --bg2:#0c1222; --card:#111a30; --card2:#16203a;
  --line:#243150; --line2:#33436b;
  --ink:#eaf0ff; --sub:#9fb0d6; --mut:#6f80a8;
  --acc:#a855f7; --acc2:#7c3aed; --acc-ink:#c9a4ff;
  --cyan:#22d3ee; --green:#34d399; --amber:#fbbf24; --red:#f87171;
  --grad:linear-gradient(135deg,#a855f7 0%,#6366f1 55%,#22d3ee 110%);
  --grad-soft:linear-gradient(135deg,rgba(168,85,247,.18),rgba(34,211,238,.10));
  --radius:18px; --radius-sm:12px;
  --shadow:0 20px 50px -18px rgba(0,0,0,.7);
  --maxw:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body.site{
  background:var(--bg); color:var(--ink);
  font-family:'Pretendard',-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  line-height:1.6; -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* 배경 글로우 */
body.site::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(60% 40% at 80% -5%, rgba(168,85,247,.18), transparent 60%),
    radial-gradient(50% 35% at 0% 10%, rgba(34,211,238,.12), transparent 60%),
    radial-gradient(70% 50% at 50% 110%, rgba(99,102,241,.14), transparent 60%);
}

/* ===== 헤더 ===== */
.site-head{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:14px clamp(16px,4vw,40px);
  background:rgba(7,11,22,.55);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:.25s;
}
.site-head.scrolled{background:rgba(7,11,22,.92);border-bottom-color:var(--line)}
.site-logo{display:flex;align-items:center;gap:10px}
.logo-glyph{font-size:26px;filter:drop-shadow(0 2px 8px rgba(168,85,247,.5))}
.logo-txt{display:flex;flex-direction:column;line-height:1.05}
.logo-txt b{font-size:17px;letter-spacing:-.02em}
.logo-txt small{font-size:9px;letter-spacing:.22em;color:var(--mut)}
.site-nav{display:flex;align-items:center;gap:6px}
.site-nav a{
  padding:8px 14px;border-radius:999px;font-size:14px;color:var(--sub);
  font-weight:500;transition:.18s;
}
.site-nav a:hover{color:var(--ink);background:rgba(255,255,255,.05)}
.site-nav a.on{color:var(--acc-ink);background:rgba(168,85,247,.14)}
.site-head-right{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;background:none;border:1px solid var(--line);color:var(--ink);
  font-size:18px;width:40px;height:40px;border-radius:11px;cursor:pointer}

/* ===== 버튼 ===== */
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:15px 28px;border-radius:999px;border:none;cursor:pointer;
  font-size:16px;font-weight:700;color:#fff;background:var(--grad);
  box-shadow:0 10px 30px -8px rgba(168,85,247,.6);
  transition:transform .15s, box-shadow .15s;white-space:nowrap;
}
.btn-cta:hover{transform:translateY(-2px);box-shadow:0 16px 40px -8px rgba(168,85,247,.75)}
.btn-cta.sm{padding:10px 18px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--ink);
  border:1px solid var(--line2);background:rgba(255,255,255,.03);transition:.18s;
}
.btn-ghost:hover{border-color:var(--acc);color:var(--acc-ink);background:rgba(168,85,247,.08)}

/* ===== 레이아웃 ===== */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(16px,4vw,40px)}
section.block{padding:clamp(56px,9vw,110px) 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;
  color:var(--acc-ink);background:rgba(168,85,247,.12);border:1px solid rgba(168,85,247,.3);
  letter-spacing:.01em;margin-bottom:20px;
}
h1.hero-h{
  font-size:clamp(34px,6.4vw,64px);line-height:1.08;letter-spacing:-.03em;font-weight:800;
}
h2.sec-h{font-size:clamp(26px,4.4vw,42px);line-height:1.18;letter-spacing:-.025em;font-weight:800}
.sec-sub{color:var(--sub);font-size:clamp(15px,1.8vw,18px);max-width:620px;margin:14px auto 0}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.center{text-align:center}

/* ===== 히어로 ===== */
.hero{position:relative;padding:clamp(48px,7vw,90px) 0 clamp(40px,6vw,70px)}
.hero-inner{max-width:880px;margin:0 auto;text-align:center}
.hero-h .ln{display:block}
.hero-lead{margin-top:22px;color:var(--sub);font-size:clamp(16px,2.1vw,21px);max-width:640px;margin-left:auto;margin-right:auto}
.hero-cta{margin-top:34px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-note{margin-top:16px;color:var(--mut);font-size:13px}
.hero-stats{
  margin-top:46px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:720px;margin-left:auto;margin-right:auto;
}
.hstat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 10px}
.hstat .n{font-size:clamp(22px,3.5vw,32px);font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1}
.hstat .l{font-size:12px;color:var(--sub);margin-top:6px}

/* 폰 목업 */
.hero-phone{margin:40px auto 0;width:min(280px,72vw);position:relative}
.phone-frame{
  border:9px solid #1a2238;border-radius:40px;background:#05080f;padding:10px 8px;
  box-shadow:var(--shadow),0 0 0 1px rgba(168,85,247,.2);position:relative;
}
.phone-frame::before{content:"";position:absolute;top:14px;left:50%;transform:translateX(-50%);width:64px;height:6px;background:#1a2238;border-radius:6px}
.phone-screen{border-radius:28px;overflow:hidden;background:linear-gradient(160deg,#0c1222,#111a30);aspect-ratio:9/19;padding:26px 14px 14px;display:flex;flex-direction:column;gap:8px}
.ps-tag{font-size:10px;color:var(--acc-ink);letter-spacing:.1em;text-align:center}
.ps-cam{flex:0 0 38%;border-radius:16px;background:radial-gradient(circle at 50% 40%,rgba(34,211,238,.18),rgba(168,85,247,.12));border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:40px}
.ps-bubble{font-size:11px;background:rgba(168,85,247,.16);border:1px solid rgba(168,85,247,.3);border-radius:12px;padding:8px 10px;color:var(--ink)}
.ps-bubble.me{background:var(--card2);border-color:var(--line);align-self:flex-end;max-width:80%}
.ps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:5px;margin-top:auto}
.ps-grid span{aspect-ratio:1;border-radius:9px;background:var(--card2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:15px}

/* ===== 신뢰 바 ===== */
.trustbar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(12,18,34,.5)}
.trustbar .wrap{display:flex;flex-wrap:wrap;gap:10px 34px;justify-content:center;padding-top:18px;padding-bottom:18px;color:var(--sub);font-size:14px}
.trustbar b{color:var(--ink)}

/* ===== 섹션: 문제→해결 ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);align-items:center}
.problem-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.problem-card h3{font-size:18px;margin-bottom:14px}
.plist{list-style:none;display:flex;flex-direction:column;gap:12px}
.plist li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--sub)}
.plist .x{color:var(--red);flex:0 0 auto;font-weight:700}
.plist .o{color:var(--green);flex:0 0 auto;font-weight:700}

/* ===== 기능 그룹 카드 ===== */
.feat-groups{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:42px}
.fgroup{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  transition:.2s;position:relative;overflow:hidden;
}
.fgroup::after{content:"";position:absolute;inset:0;background:var(--grad-soft);opacity:0;transition:.25s;pointer-events:none}
.fgroup:hover{transform:translateY(-4px);border-color:var(--line2)}
.fgroup:hover::after{opacity:1}
.fg-head{display:flex;align-items:center;gap:12px;margin-bottom:6px;position:relative;z-index:1}
.fg-ic{font-size:30px}
.fg-head h3{font-size:19px}
.fg-head .cnt{margin-left:auto;font-size:12px;font-weight:700;color:var(--acc-ink);background:rgba(168,85,247,.14);border-radius:999px;padding:4px 11px}
.fg-desc{color:var(--sub);font-size:14px;margin-bottom:16px;position:relative;z-index:1}
.fg-chips{display:flex;flex-wrap:wrap;gap:7px;position:relative;z-index:1}
.fchip{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;padding:6px 11px;border-radius:999px;
  background:var(--card2);border:1px solid var(--line);color:var(--sub)}
.fchip .i{font-size:14px}

/* ===== 비교 강조 띠 ===== */
.versus{background:var(--grad-soft);border:1px solid rgba(168,85,247,.25);border-radius:var(--radius);
  padding:clamp(26px,4vw,44px);text-align:center;margin-top:10px}
.versus .big{font-size:clamp(40px,8vw,76px);font-weight:900;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.versus .cap{color:var(--sub);font-size:16px;margin-top:8px}

/* ===== 비교표 ===== */
.cmp-table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);margin-top:34px}
table.cmp{width:100%;border-collapse:collapse;min-width:640px;background:var(--card)}
table.cmp th,table.cmp td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:14.5px}
table.cmp thead th{font-size:13px;color:var(--sub);text-transform:uppercase;letter-spacing:.04em;background:var(--bg2);position:sticky;top:0}
table.cmp th.col-us,table.cmp td.col-us{background:rgba(168,85,247,.10)}
table.cmp thead th.col-us{color:var(--acc-ink)}
table.cmp td.feat{font-weight:600;color:var(--ink)}
table.cmp .yes{color:var(--green);font-weight:700}
table.cmp .no{color:var(--red);font-weight:700}
table.cmp .us-val{font-weight:800;color:var(--acc-ink)}
table.cmp tbody tr:hover td{background:rgba(255,255,255,.02)}
table.cmp tbody tr:hover td.col-us{background:rgba(168,85,247,.16)}

/* ===== 스텝 카드 ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center;position:relative}
.step .num{width:46px;height:46px;border-radius:14px;background:var(--grad);color:#fff;font-weight:800;
  font-size:20px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.step h3{font-size:18px;margin-bottom:8px}
.step p{color:var(--sub);font-size:14px}

/* ===== FAQ ===== */
.faq{max-width:760px;margin:36px auto 0;display:flex;flex-direction:column;gap:12px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);padding:4px 18px}
.faq summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:600;font-size:15.5px;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--acc-ink);font-size:22px;font-weight:400}
.faq details[open] summary::after{content:"−"}
.faq p{color:var(--sub);font-size:14.5px;padding:0 0 16px}

/* ===== CTA 밴드 ===== */
.cta-band{background:var(--grad-soft);border:1px solid rgba(168,85,247,.25);border-radius:var(--radius);
  padding:clamp(36px,6vw,64px);text-align:center;margin:0 clamp(16px,4vw,40px)}
.cta-band h2{font-size:clamp(24px,4vw,38px);font-weight:800;letter-spacing:-.02em}
.cta-band p{color:var(--sub);margin:14px auto 28px;max-width:520px}

/* ===== 글래스 페이지 타임라인 ===== */
.timeline{max-width:760px;margin:40px auto 0;position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:var(--line2)}
.tl-item{position:relative;padding:0 0 28px 24px}
.tl-item::before{content:"";position:absolute;left:-26px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--card);border:3px solid var(--acc)}
.tl-item.done::before{background:var(--acc)}
.tl-phase{font-size:12px;color:var(--acc-ink);font-weight:700;letter-spacing:.04em}
.tl-item h3{font-size:18px;margin:4px 0 6px}
.tl-item p{color:var(--sub);font-size:14.5px}

/* ===== 푸터 ===== */
.site-foot{border-top:1px solid var(--line);background:var(--bg2);margin-top:40px}
.foot-inner{max-width:var(--maxw);margin:0 auto;padding:48px clamp(16px,4vw,40px) 30px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:40px}
.foot-brand .logo-glyph{font-size:30px}
.foot-brand b{display:block;margin-top:8px;font-size:18px}
.foot-brand p{color:var(--sub);font-size:14px;margin-top:10px}
.foot-links{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.fl-col h4{font-size:13px;color:var(--mut);text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px}
.fl-col a{display:block;color:var(--sub);font-size:14px;padding:5px 0;transition:.15s}
.fl-col a:hover{color:var(--acc-ink)}
.foot-bottom{max-width:var(--maxw);margin:0 auto;padding:18px clamp(16px,4vw,40px);
  border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;
  color:var(--mut);font-size:12.5px;flex-wrap:wrap;gap:8px}
.foot-tag{color:var(--acc-ink)}

/* ===== 등장 애니메이션 ===== */
[data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
[data-reveal].inview{opacity:1;transform:none}

/* ===== 반응형 ===== */
@media(max-width:860px){
  .site-nav{position:absolute;top:64px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:rgba(7,11,22,.98);border-bottom:1px solid var(--line);padding:10px 16px;gap:2px;display:none}
  .site-nav.open{display:flex}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .split{grid-template-columns:1fr}
  .feat-groups{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .foot-inner{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  /* 비교표: 모바일에서 좁은 패딩으로 더 많은 열 노출 */
  table.cmp{min-width:520px}
  table.cmp th,table.cmp td{padding:12px 11px;font-size:13px}
  .cmp-hint{display:block}
}
.cmp-hint{display:none;text-align:center;color:var(--mut);font-size:12.5px;margin-top:10px}
@media(max-width:420px){
  .hero-cta .btn-cta,.hero-cta .btn-ghost{width:100%}
}
@media(prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1!important;transform:none!important;transition:none}
  html{scroll-behavior:auto}
}

/* ===== 아리 섹션 (랜딩) — 비파괴 추가 ===== */
.ari-block{background:rgba(12,18,34,.4);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ari-split{align-items:center}
.ari-feats{display:flex;flex-direction:column;gap:14px;margin-top:26px}
.ari-feat{display:flex;gap:13px;align-items:flex-start}
.ari-feat .af-ic{flex:0 0 auto;font-size:22px;width:42px;height:42px;display:flex;align-items:center;justify-content:center;border-radius:12px;background:rgba(168,85,247,.12);border:1px solid rgba(168,85,247,.28)}
.ari-feat b{color:var(--ink);font-size:15.5px}
.ari-feat p{color:var(--sub);font-size:13.5px;margin:3px 0 0}
.ari-chat{display:flex;flex-direction:column;gap:10px;padding:24px}
.ac-bubble{max-width:86%;padding:11px 15px;border-radius:16px;font-size:14.5px;line-height:1.55}
.ac-bubble.me{align-self:flex-end;background:var(--grad);color:#fff;border-bottom-right-radius:5px}
.ac-bubble.ari{align-self:flex-start;background:var(--card2);border:1px solid var(--line);color:var(--ink);border-bottom-left-radius:5px}
.ac-who{display:block;font-size:11px;color:var(--acc-ink);font-weight:700;margin-bottom:4px}
.ac-note{text-align:center;color:var(--mut);font-size:12px;margin-top:8px}

/* ===== 공유(바이럴) 밴드 ===== */
.share-block{border-top:1px solid var(--line)}
.share-btns{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:28px}
.share-btn{display:inline-flex;align-items:center;gap:7px;padding:13px 22px;border-radius:999px;font-size:15px;font-weight:700;cursor:pointer;text-decoration:none;border:1px solid var(--line2);background:rgba(255,255,255,.04);color:var(--ink);transition:.18s}
.share-btn:hover{transform:translateY(-2px)}
.share-btn.primary{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 12px 32px -10px rgba(168,85,247,.7)}
.share-btn.kakao{background:#FEE500;color:#191600;border-color:#FEE500}
.share-btn.x{background:#0f1115;color:#fff;border-color:#2a2f3a}
.share-btn.copy:hover{border-color:var(--acc);color:var(--acc-ink)}
.share-toast{min-height:22px;margin-top:18px;font-size:13.5px;font-weight:600;color:var(--acc-ink);opacity:0;transform:translateY(6px);transition:.25s}
.share-toast.on{opacity:1;transform:none}

@media(max-width:760px){
  .share-btn{flex:1 1 44%;justify-content:center;padding:13px 14px}
  .share-btn.primary{flex-basis:100%}
}