/* ── RESET & ROOT ── */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --red:#D63C30;
  --red-dark:#B83227;
  --red-muted:rgba(214,60,48,0.08);
  --ink:#141414;
  --ink2:#3A3A3A;
  --ink3:#767676;
  --line:#E8E8E8;
  --bg:#F9F8F6;
  --white:#FFFFFF;
  --card-r:12px;
}
html{scroll-behavior:smooth}
body{
  font-family:'Noto Sans KR',sans-serif;
  color:var(--ink);background:var(--white);
  overflow-x:hidden;
}
a{text-decoration:none;color:inherit}

/* ── NAV ── */
nav{
  height:58px;
  display:flex;align-items:center;
  padding:0 48px;
  position:sticky;top:0;z-index:99;
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.logo{
  font-family:'Syne',sans-serif;
  font-size:18px;font-weight:800;letter-spacing:-0.4px;
  display:flex;align-items:center;gap:8px;margin-right:auto;
}
.logo-mark{
  width:26px;height:26px;background:var(--ink);border-radius:6px;
  display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:14px;height:14px}
.logo-name{color:var(--ink)}
.logo-accent{color:var(--red)}
nav ul{display:flex;gap:0;list-style:none}
nav ul li a{
  display:block;padding:6px 16px;
  font-size:13.5px;font-weight:500;color:var(--ink3);
  border-radius:7px;transition:all .15s;
}
nav ul li a:hover{color:var(--ink);background:var(--bg)}
.btn{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 18px;border-radius:8px;
  font-size:13px;font-weight:700;
  transition:all .15s;cursor:pointer;border:none;font-family:inherit;
}
.btn-primary{background:var(--ink);color:white}
.btn-primary:hover{background:#2a2a2a}

/* ── HERO ── */
.hero-wrap{max-width:1160px;margin:0 auto;overflow:hidden;position:relative}
.hero{
  padding:25px 48px 72px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;align-items:center;
  overflow:hidden;
  contain:paint;
}
.hero-left{max-width:520px}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11px;font-weight:700;letter-spacing:1.2px;
  text-transform:uppercase;color:var(--ink3);
  margin-bottom:20px;
}
.hero-kicker::before{content:'';width:20px;height:1px;background:var(--red)}
.hero h1{
  font-family:'Syne',sans-serif;
  font-size:54px;font-weight:800;line-height:1.05;
  letter-spacing:-2px;margin-bottom:20px;
}
.hero h1 .accent{color:var(--red)}
.hero-sub{
  font-size:15.5px;color:var(--ink3);line-height:1.75;
  margin-bottom:36px;max-width:420px;
}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.btn-upload{
  background:var(--red);color:white;
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 24px;border-radius:10px;
  font-size:14px;font-weight:700;
  transition:all .15s;cursor:pointer;
}
.btn-upload:hover{background:var(--red-dark);transform:translateY(-1px)}
.hero-note{font-size:12px;color:var(--ink3)}
.hero-note strong{color:var(--ink);font-weight:700}
.hero-right{position:relative;min-height:300px;display:flex;align-items:center;justify-content:center}

/* Hero 우측 — 파일 카드 목록 */
.pdf-preview{width:100%;max-width:320px;display:flex;flex-direction:column;gap:10px}
.pdf-card{
  background:var(--white);border:1px solid var(--line);
  border-radius:12px;padding:14px 16px;
  box-shadow:0 2px 12px rgba(0,0,0,0.06);
}
.pdf-card-header{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.pdf-icon-sm{
  width:30px;height:30px;background:var(--red-muted);
  border-radius:7px;display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.pdf-icon-sm svg{width:15px;height:15px;stroke:var(--red);fill:none;stroke-width:1.6}
.pdf-fname{font-size:12px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pdf-fmeta{font-size:11px;color:var(--ink3)}
.pdf-bar{height:3px;background:var(--line);border-radius:2px;overflow:hidden}
.pdf-bar-fill{height:100%;border-radius:2px;background:var(--red)}
.pdf-status{font-size:11px;color:var(--ink3);margin-top:6px;display:flex;justify-content:space-between}
.dl-link{color:var(--red);font-weight:700;cursor:pointer}

/* ── DRAG AREA ── */
.drop-wrap{max-width:860px;margin:0 auto;padding:0 48px 64px}
.drop-area{
  border:1.5px dashed #C8C8C8;border-radius:16px;
  padding:52px 40px;text-align:center;cursor:pointer;
  transition:all .2s;background:var(--bg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  user-select:none;
}
.drop-area:hover,.drop-area.drag{border-color:var(--red);background:var(--red-muted)}
.drop-icon{
  display:block;width:40px;height:40px;stroke:#aaa;fill:none;
  stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
  margin-bottom:16px;flex-shrink:0;transition:stroke .2s;
}
.drop-area:hover .drop-icon,.drop-area.drag .drop-icon{stroke:var(--red)}
.drop-title{font-size:16px;font-weight:700;margin-bottom:6px}
.drop-sub{font-size:13px;color:var(--ink3)}
.drop-sub b{color:var(--ink);font-weight:700}
.drop-formats{display:flex;gap:6px;justify-content:center;margin-top:18px;flex-wrap:wrap}
.fmt{
  font-size:10.5px;font-weight:700;letter-spacing:0.6px;
  padding:3px 10px;border-radius:4px;
  background:white;border:1px solid var(--line);color:var(--ink3);
}

/* ── PROGRESS (파일 처리 결과) ── */
.result-area{
  max-width:860px;margin:0 auto;padding:0 48px 40px;
  display:none;
}
.result-area.show{display:block}
.result-card{
  background:var(--white);border:1px solid var(--line);
  border-radius:14px;padding:24px 28px;
  display:flex;align-items:center;gap:20px;
}
.result-icon{
  width:48px;height:48px;border-radius:12px;background:#EDFAF3;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.result-icon svg{width:22px;height:22px;stroke:#1A8A52;fill:none;stroke-width:2}
.result-info{flex:1}
.result-name{font-size:14px;font-weight:700;margin-bottom:4px}
.result-meta{font-size:12px;color:var(--ink3)}
.result-progress{
  height:4px;background:var(--line);border-radius:2px;margin-top:10px;overflow:hidden;
}
.result-progress-bar{height:100%;background:var(--red);border-radius:2px;transition:width .3s}
.btn-download{
  background:var(--ink);color:white;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:8px;
  font-size:13px;font-weight:700;border:none;cursor:pointer;
  transition:background .15s;white-space:nowrap;
}
.btn-download:hover{background:#2a2a2a}
.btn-download:disabled{background:var(--ink3);cursor:default}

/* ── TOOLS GRID ── */
.tools-section{padding:0 48px 80px;max-width:1160px;margin:0 auto}
.sec-label{
  font-size:11px;font-weight:700;letter-spacing:1.2px;
  text-transform:uppercase;color:var(--ink3);
  display:flex;align-items:center;gap:10px;margin-bottom:16px;
}
.sec-label::after{content:'';flex:1;height:1px;background:var(--line)}
.tools-header{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:24px}
.tools-title{font-family:'Syne',sans-serif;font-size:28px;font-weight:800;letter-spacing:-0.8px}
.see-all{font-size:13px;color:var(--ink3);font-weight:500;display:flex;align-items:center;gap:5px}
.see-all:hover{color:var(--ink)}
.tools-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.tc{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--card-r);padding:22px 20px 20px;
  cursor:pointer;transition:all .18s;
  display:block;position:relative;overflow:hidden;
}
.tc:hover{border-color:#bbb;box-shadow:0 6px 28px rgba(0,0,0,0.08);transform:translateY(-2px)}
.tc.wide{grid-column:span 2;display:flex;align-items:center;gap:24px;background:var(--ink)}
.tc.wide:hover{background:#1e1e1e;transform:translateY(-2px)}
.tc-icon{
  width:40px;height:40px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:14px;flex-shrink:0;
}
.tc-icon svg{width:20px;height:20px;stroke-width:1.6;fill:none}
.bg-red{background:var(--red-muted)}  .bg-red svg{stroke:var(--red)}
.bg-blue{background:#EFF4FF}          .bg-blue svg{stroke:#3869E8}
.bg-green{background:#EDFAF3}         .bg-green svg{stroke:#1A8A52}
.bg-amber{background:#FFF7ED}         .bg-amber svg{stroke:#C46A00}
.bg-purple{background:#F2EEFF}        .bg-purple svg{stroke:#6A3FD3}
.bg-teal{background:#EAF9F7}          .bg-teal svg{stroke:#1A8A7A}
.bg-white-alpha{background:rgba(255,255,255,0.1)} .bg-white-alpha svg{stroke:white}
.tc-name{font-size:14px;font-weight:700;margin-bottom:4px}
.tc-desc{font-size:12px;color:var(--ink3);line-height:1.55}
.tc.wide .tc-name{color:white;font-size:17px;margin-bottom:6px}
.tc.wide .tc-desc{color:rgba(255,255,255,0.55);font-size:13px;line-height:1.6}
.tc-tag{display:inline-block;margin-top:11px;font-size:10px;font-weight:700;letter-spacing:0.4px;padding:2px 8px;border-radius:3px}
.tag-free{background:#EDFAF3;color:#1A8A52}
.tag-hot{background:#FFF1EE;color:#C43A2A}
.tag-new{background:#F2EEFF;color:#6A3FD3}
.wide-btn{
  margin-top:18px;display:inline-flex;align-items:center;gap:8px;
  background:var(--red);color:white;border-radius:8px;
  padding:10px 20px;font-size:13px;font-weight:700;transition:background .15s;
}
.tc.wide:hover .wide-btn{background:var(--red-dark)}
.mini-stack{flex-shrink:0;width:100px;height:90px;position:relative}
.ms-doc{
  position:absolute;width:52px;height:66px;border-radius:6px;
  border:1px solid rgba(255,255,255,0.15);background:rgba(255,255,255,0.07);
}
.ms-doc:nth-child(1){transform:rotate(-8deg);top:8px;left:0}
.ms-doc:nth-child(2){transform:rotate(0deg);top:12px;left:20px;background:rgba(255,255,255,0.14)}
.ms-doc:nth-child(3){transform:rotate(7deg);top:6px;left:40px}
.ms-fold{
  position:absolute;top:12px;left:20px;
  width:0;height:0;
  border-left:9px solid transparent;
  border-bottom:9px solid rgba(255,255,255,0.25);
  transform:translate(43px,-9px);
}

/* ── HOW ── */
.how-title{font-family:'Noto Sans KR',sans-serif;font-size:28px;font-weight:900;letter-spacing:-0.8px;margin-bottom:0}
.how-section{background:var(--bg);padding:72px 48px}
.how-inner{max-width:1160px;margin:0 auto}
.how-steps{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:1px;background:var(--line);
  border-radius:var(--card-r);overflow:hidden;margin-top:32px;
}
.how-step{background:var(--white);padding:36px 32px}
.step-no{
  display:flex;align-items:center;gap:8px;
  font-size:11px;font-weight:700;letter-spacing:1.4px;
  text-transform:uppercase;color:var(--ink3);margin-bottom:22px;
}
.step-no-badge{
  width:20px;height:20px;border-radius:50%;
  background:var(--ink);color:white;
  font-size:10px;font-weight:700;letter-spacing:0;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.how-step h3{font-size:15px;font-weight:700;margin-bottom:9px;letter-spacing:-0.2px}
.how-step p{font-size:13.5px;color:var(--ink3);line-height:1.75}
.step-ico{
  width:30px;height:30px;margin-bottom:18px;
  stroke:var(--ink);fill:none;stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round;display:block;
}

/* ── TRUST ── */
.trust{
  max-width:1160px;margin:0 auto;padding:56px 48px;
  display:grid;grid-template-columns:1fr 1px 1fr 1px 1fr;
  gap:0;align-items:center;
}
.trust-divider{background:var(--line);height:60px}
.trust-item{padding:0 40px;text-align:center}
.trust-num{font-family:'Syne',sans-serif;font-size:38px;font-weight:800;letter-spacing:-1.5px;color:var(--ink);margin-bottom:4px}
.trust-lbl{font-size:13px;color:var(--ink3)}

/* ── SECURITY ── */
.security-bar{
  background:var(--ink);padding:28px 48px;
  display:flex;align-items:center;gap:40px;flex-wrap:wrap;
}
.security-bar .sec-title{
  font-family:'Syne',sans-serif;font-size:17px;font-weight:800;
  color:white;letter-spacing:-0.4px;margin-right:auto;
}
.sec-item{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,0.6)}
.sec-item svg{width:16px;height:16px;stroke:rgba(255,255,255,0.5);fill:none;stroke-width:1.8;flex-shrink:0}

/* ── FOOTER ── */
footer{
  padding:40px 48px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;
}
.foot-logo{font-family:'Syne',sans-serif;font-size:16px;font-weight:800}
.foot-logo span{color:var(--red)}
.foot-copy{font-size:12px;color:var(--ink3);margin-top:3px}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}
.foot-links a{font-size:12px;color:var(--ink3)}
.foot-links a:hover{color:var(--ink)}

/* ── 개별 기능 페이지 공통 ── */
.tool-page{max-width:800px;margin:0 auto;padding:60px 48px}
.tool-page-title{font-family:'Syne',sans-serif;font-size:32px;font-weight:800;letter-spacing:-1px;margin-bottom:8px}
.tool-page-desc{font-size:15px;color:var(--ink3);line-height:1.7;margin-bottom:40px}
.tool-box{
  background:var(--white);border:1px solid var(--line);
  border-radius:16px;padding:32px;
}
.tool-box + .tool-box{margin-top:16px}
.form-row{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.form-label{font-size:13px;font-weight:700;min-width:80px}
.form-input{
  flex:1;padding:9px 14px;border:1px solid var(--line);border-radius:8px;
  font-size:14px;font-family:inherit;outline:none;
}
.form-input:focus{border-color:var(--ink)}
.range-wrap{flex:1;display:flex;align-items:center;gap:10px}
input[type=range]{flex:1;accent-color:var(--red)}
.range-val{font-size:13px;font-weight:700;min-width:32px}
.action-row{display:flex;justify-content:flex-end;margin-top:24px}
.btn-process{
  background:var(--red);color:white;
  padding:12px 32px;border-radius:10px;
  font-size:15px;font-weight:700;border:none;cursor:pointer;
  transition:all .15s;display:flex;align-items:center;gap:9px;
}
.btn-process:hover{background:var(--red-dark)}
.btn-process:disabled{background:var(--ink3);cursor:default}
.file-list-area{
  border:1.5px dashed #C8C8C8;border-radius:12px;
  padding:20px;min-height:120px;background:var(--bg);
}
.file-item{
  display:flex;align-items:center;gap:12px;padding:10px 12px;
  background:var(--white);border-radius:8px;border:1px solid var(--line);
  margin-bottom:8px;
}
.file-item:last-child{margin-bottom:0}
.file-item-name{flex:1;font-size:13px;font-weight:500}
.file-item-size{font-size:11px;color:var(--ink3)}
.file-item-remove{
  width:22px;height:22px;border-radius:50%;border:none;
  background:var(--line);cursor:pointer;font-size:12px;
  display:flex;align-items:center;justify-content:center;
  transition:background .15s;
}
.file-item-remove:hover{background:#E0E0E0}
.empty-hint{text-align:center;color:var(--ink3);font-size:13px;padding:16px 0}
/* 상태 메시지 */
.status-msg{
  padding:14px 20px;border-radius:10px;
  font-size:13px;font-weight:500;margin-top:16px;display:none;
}
.status-msg.show{display:block}
.status-msg.processing{background:#FFF8ED;color:#854F0B}
.status-msg.done{background:#EDFAF3;color:#1A8A52}
.status-msg.error{background:#FCEBEB;color:#A32D2D}

/* ── ANIMATIONS ── */
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
@keyframes prog{from{width:40%}to{width:85%}}
.hero-left{animation:fadeUp .5s ease both}
.hero-right{animation:fadeUp .5s .12s ease both}
.tc{animation:fadeUp .35s ease both}
.tc:nth-child(1){animation-delay:.05s}.tc:nth-child(2){animation-delay:.1s}
.tc:nth-child(3){animation-delay:.15s}.tc:nth-child(4){animation-delay:.2s}
.tc:nth-child(5){animation-delay:.25s}.tc:nth-child(6){animation-delay:.3s}
.tc:nth-child(7){animation-delay:.35s}.tc:nth-child(8){animation-delay:.4s}

/* ── RESPONSIVE ── */
@media(max-width:980px){
  .hero{grid-template-columns:1fr;padding:25px 32px 48px}
  .hero-right{display:none}
  .tools-grid{grid-template-columns:repeat(2,1fr)}
  .tc.wide{grid-column:span 2}
  .how-steps{grid-template-columns:1fr}
  .trust{grid-template-columns:1fr;gap:24px}
  .trust-divider{display:none}
  nav{padding:0 24px}
  .tools-section,.drop-wrap{padding-left:24px;padding-right:24px}
  .how-section{padding:48px 24px}
  .tool-page{padding:40px 24px}
}
@media(max-width:600px){
  .tools-grid{grid-template-columns:1fr}
  .tc.wide{grid-column:span 1}
  .mini-stack{display:none}
  .hero h1{font-size:38px}
  nav ul{display:none}
  footer{padding:28px 24px}
  .security-bar{padding:20px 24px;gap:20px}
  .foot-links{display:none}
}