:root{
  --navy:#13235b; --blue:#2f6bff; --ink:#1b1f24; --gray:#5a626b;
  --line:#e3e8f0; --bg:#f6f8fc; --white:#fff; --ok:#16a34a; --warn:#d97706;
  --kmong:#ff6f0f;
}
*{box-sizing:border-box}
body{margin:0;font-family:"Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.6}
.wrap{max-width:920px;margin:0 auto;padding:0 20px}
b{font-weight:700}
.muted{color:var(--gray)}

/* nav */
.nav{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{font-weight:800;font-size:20px;color:var(--navy)}
.nav-right{display:flex;align-items:center;gap:12px}
.gear{font-size:20px;text-decoration:none;opacity:.55;transition:opacity .2s;line-height:1}
.gear:hover{opacity:1}

/* buttons */
.btn{display:inline-block;border:0;border-radius:10px;padding:12px 18px;font-size:15px;
  font-weight:700;cursor:pointer;text-decoration:none;text-align:center}
.btn-kmong{background:var(--kmong);color:#fff}
.btn-go{background:var(--blue);color:#fff;white-space:nowrap}
.btn-ghost{background:#fff;color:var(--navy);border:1.5px solid var(--line)}
.btn:disabled{opacity:.55;cursor:default}

/* hero */
.hero{background:linear-gradient(180deg,#eef3ff,#f6f8fc);padding:32px 0 44px}
.hero h1{font-size:38px;line-height:1.25;margin:0 0 14px;color:var(--navy)}
.hero h1 b{color:var(--blue)}
.hero .sub{font-size:18px;color:var(--gray);margin:0 0 28px;max-width:640px}
.demo-box{display:flex;gap:10px;background:#fff;padding:10px;border-radius:14px;
  box-shadow:0 8px 30px rgba(20,40,90,.10);border:1px solid var(--line)}
.demo-box input{flex:1;border:0;outline:0;padding:12px 14px;font-size:16px;border-radius:8px}
.hint{font-size:13px;color:var(--gray);margin:12px 2px 0}

/* hero 2단 + 실시간 피드 */
.hero-grid{display:grid;grid-template-columns:1fr 300px;gap:28px;align-items:stretch}
.hero-main{min-width:0}
/* 피드: 왼쪽 컬럼 높이에 맞춰 늘어나고(stretch), 항목이 많으면 내부 스크롤. */
.feed{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;position:sticky;top:76px;display:flex;flex-direction:column}
.feed h3{margin:0 0 10px;font-size:15px;color:var(--navy);flex:0 0 auto}
.feed h3::before{content:"🟢 ";font-size:11px}
/* flex:1 1 0 + min-height:0 → 피드 높이는 왼쪽(hero-main)이 결정, 넘치면 스크롤. */
.feed-list{display:flex;flex-direction:column;gap:10px;flex:1 1 0;min-height:0;overflow-y:auto;padding-right:4px}
.feed-item{border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:#fcfdff}
.feed-item .fh{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.feed-item .host{font-weight:700;color:var(--ink);font-size:14px;overflow:hidden;text-overflow:ellipsis}
.feed-item .when{font-size:11px;color:var(--gray);white-space:nowrap}
.feed-item .meta{font-size:12px;color:var(--gray);margin-top:2px}
.feed-item .chips{display:flex;flex-wrap:wrap;gap:4px;margin-top:6px}
.feed-item .chip{font-size:11px;padding:2px 7px;border-radius:999px;background:#eef3ff;color:var(--navy)}
.feed-item .chip.ota{background:#fde8e8;color:#b91c1c;font-weight:700}
@media(max-width:820px){.hero-grid{grid-template-columns:1fr}.feed{position:static}.feed-list{flex:none;max-height:340px}}

/* 심금을 울리는 카피 */
.pitch{background:#fff;border-bottom:1px solid var(--line);padding:22px 0 36px}
.pitch .wrap{max-width:760px}
.pitch-lead{font-size:18px;color:var(--ink);margin:0 0 18px;line-height:1.75}
.pitch-lead b{color:var(--blue);font-weight:800}
.pitch-quote{margin:0 0 18px;padding:18px 22px;border-left:4px solid var(--blue);
  background:#f3f7ff;border-radius:0 10px 10px 0;font-size:19px;font-weight:700;
  color:var(--navy);line-height:1.6}
.pitch-body{font-size:17px;color:var(--gray);line-height:1.85;margin:0 0 18px}
.pitch-close{font-size:18px;color:var(--ink);line-height:1.75;margin:0}
.pitch-close b{color:var(--blue)}

/* result */
.result{margin-top:24px;background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:22px;box-shadow:0 6px 24px rgba(20,40,90,.06)}
.result.loading{display:flex;align-items:center;gap:8px;color:var(--gray)}
.r-count.ota{color:#b91c1c}
.prog{flex:1;min-width:0}
.prow{font-size:15px;color:var(--ink);margin-bottom:6px}
.pbar{height:10px;background:#eef3ff;border-radius:99px;overflow:hidden;max-width:360px}
.pbar>i{display:block;height:100%;background:var(--blue);transition:width .3s}
.hist-title{font-size:13px;color:var(--gray);margin:16px 2px 6px}
.hist-list{display:flex;flex-direction:column;gap:6px}
.hist-item{text-align:left;background:#fff;border:1px solid var(--line);border-radius:8px;
  padding:8px 12px;font-size:13px;color:var(--blue);cursor:pointer;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;width:100%}
.hist-item:hover{background:#f3f7ff}
.r-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-bottom:6px}
.r-count{font-size:30px;font-weight:800;color:var(--navy)}
.r-sub{color:var(--gray)}
.r-msg{margin:6px 0 16px}
.spinner{width:26px;height:26px;border:3px solid var(--line);border-top-color:var(--blue);
  border-radius:50%;animation:spin .8s linear infinite;display:inline-block;vertical-align:middle}
@keyframes spin{to{transform:rotate(360deg)}}

/* finding card */
.find{border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin:10px 0;background:#fcfdff}
.find .top{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.badge{font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px;background:#eaf0ff;color:var(--blue)}
.conf{font-size:12px;color:var(--gray);margin-left:auto}
.fix{font-size:17px}
.fix .o{color:#b91c1c;text-decoration:line-through;text-decoration-color:#f3b4b4}
.fix .arrow{color:var(--gray);margin:0 8px}
.fix .s{color:var(--ok);font-weight:700}
.reason{font-size:13px;color:var(--gray);margin-top:5px}
.fix .conf{font-size:12px;color:var(--gray);font-weight:400;margin-left:8px}
/* 유형 헤더(오타 먼저 그룹) + 오류 위치 링크(끝에) */
.type{font-size:17px;font-weight:700;color:var(--navy);margin:22px 0 8px;border-bottom:2px solid var(--line);padding-bottom:5px}
.type.ota{color:#b91c1c}
.type span{font-size:13px;font-weight:600;color:var(--gray);margin-left:8px}
.loc{margin-top:8px;font-size:13px}
.loc a{color:var(--blue);text-decoration:none;word-break:break-all}
.loc a:hover{text-decoration:underline}
.hlnote{background:#eef3ff;color:#3a4a6b;border-radius:8px;padding:9px 13px;margin:6px 0 16px;font-size:13px;line-height:1.55}

/* locked */
.locked{margin-top:14px;padding:18px;border:1.5px dashed #c8d3ec;border-radius:12px;
  background:#f3f7ff;text-align:center}
.locked .big{font-size:18px;font-weight:800;color:var(--navy)}
.locked p{color:var(--gray);margin:6px 0 14px}
.banner{padding:14px 16px;border-radius:10px;margin-bottom:4px}
.banner.warn{background:#fff7ed;color:#9a3412;border:1px solid #fed7aa}

/* example & sections */
.example,.how{padding:48px 0}
.example{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:26px;color:var(--navy);margin:0 0 8px}
.example-out{margin-top:18px}
.sum{display:flex;gap:8px;flex-wrap:wrap;margin:4px 0 14px}
.sum span{background:#eef3ff;color:var(--navy);border-radius:999px;padding:5px 12px;font-size:13px;font-weight:700}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:20px 0}
.step{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}
.step span{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;
  background:var(--blue);color:#fff;font-weight:800;margin-bottom:8px}
.step b{display:block;color:var(--navy)}
.step p{margin:4px 0 0;color:var(--gray);font-size:14px}
.types{display:flex;gap:10px;flex-wrap:wrap;margin:8px 0 18px}
.types span{background:var(--navy);color:#fff;border-radius:8px;padding:7px 14px;font-weight:700;font-size:14px}
.trust{list-style:none;padding:0;margin:0;color:var(--gray)}
.trust li{margin:6px 0}

/* footer */
.foot{background:var(--navy);color:#cfe;padding:28px 0;margin-top:8px}
.foot .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot p{margin:0;color:#aeb9e0}

@media(max-width:640px){
  .hero h1{font-size:28px}.demo-box{flex-direction:column}
  .steps{grid-template-columns:1fr}.foot .wrap{flex-direction:column;text-align:center}
}