:root{
  --bg:#f5f4f0; --surface:#fbfbf9; --panel:#ffffff; --panel-soft:#f7f6f2;
  --ink:#1c1c1a; --ink-hover:#3a3935; --ink-2:#55534d; --sub:#7a776f; --muted:#8a877f;
  --line:#e3e1db; --line-2:#dcdad3; --line-3:#efeee9; --hover:#efeee9; --soft:#f3f2ee; --track:#ebe9e3;
  --accent:#0c8599; /* 틸 */
  --accent-ink:#0b7285;
  --accent-soft:#e3f5f7;
  --warn:#c92a2a; --warn-soft:#fff3f0; --warn-line:#ffd8cc;
  --caution:#9c5a00; --caution-soft:#fff8e6; --caution-line:#ffe5a8;
  --font:"IBM Plex Sans KR",sans-serif; --mono:"JetBrains Mono",monospace;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit;color:inherit}
.mono-label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted)}
.app{min-height:100vh;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 28px;border-bottom:1px solid var(--line);background:var(--surface);flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:14px;min-width:0;flex-wrap:wrap}
.brand-title{font-size:17px;font-weight:700;letter-spacing:-.01em}
.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.engine{font-size:12px;color:var(--muted);font-family:var(--mono)}
.btn{height:36px;padding:0 14px;background:transparent;border:1px solid var(--line-2);border-radius:999px;font-size:13px;cursor:pointer;white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:6px;text-decoration:none;color:var(--ink)}
.btn:hover:not(:disabled){background:var(--hover)}
.btn:disabled{opacity:.45;cursor:default}
.btn--solid{background:var(--ink);color:#fff;border:none;font-weight:500}
.btn--solid:hover:not(:disabled){background:var(--ink-hover)}
.btn--small{height:32px;padding:0 13px;font-size:12.5px}
.btn--big{height:46px;padding:0 24px;font-size:15px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0;white-space:nowrap}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
kbd{font-family:var(--mono);font-size:11px;padding:1px 5px;border:1px solid var(--line-2);border-bottom-width:2px;border-radius:4px;background:var(--panel);color:var(--ink-2)}
.link-btn{border:0;background:none;padding:2px 0;font-size:12px;color:var(--sub);cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.link-btn:hover{color:var(--accent)}

.qr{width:100%;max-width:1180px;margin:0 auto;padding:28px 28px 64px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:start}
.input-col,.out-col{display:flex;flex-direction:column;gap:12px;min-width:0}

/* 탭 */
.tabs{display:flex;gap:4px;background:var(--soft);border-radius:999px;padding:4px;align-self:flex-start}
.tab{height:36px;padding:0 18px;border:0;border-radius:999px;background:transparent;color:var(--sub);cursor:pointer;display:inline-flex;align-items:center;gap:7px;font-size:14px}
.tab.is-active{background:var(--panel);color:var(--ink);font-weight:700;box-shadow:0 1px 3px rgba(0,0,0,.1)}
.pane{min-width:0;display:flex;flex-direction:column;gap:10px}

/* 이미지 드롭 */
.drop{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;min-height:360px;padding:28px 20px;border:2px dashed var(--line-2);border-radius:22px;background:var(--panel);cursor:pointer;transition:border-color .2s,background .2s}
.drop:hover,.is-dragover .drop{border-color:var(--accent);background:var(--accent-soft)}
.drop-icon{width:84px;height:84px;border-radius:24px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);margin-bottom:6px}
.drop-title{font-size:16px;font-weight:700}
.drop-sub{font-size:13px;color:var(--sub)}
.is-dragover .drop-icon{transform:scale(1.06)}
.preview{display:flex;flex-direction:column;gap:10px}
.pv-stage{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:repeating-conic-gradient(#eee 0 25%,#fff 0 50%) 0 0/20px 20px;display:flex;justify-content:center}
.pv-stage canvas{display:block;max-width:100%;max-height:520px;width:auto;height:auto}
.pv-overlay{position:absolute;inset:0;margin:auto;pointer-events:none}
.pv-bar{display:flex;align-items:center;gap:10px;justify-content:space-between;flex-wrap:wrap}
.pv-name{font-size:12px;color:var(--muted);font-family:var(--mono);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}

/* 카메라 */
.cam{position:relative;aspect-ratio:4/3;border-radius:22px;overflow:hidden;background:#111317;display:grid;place-items:center}
.cam video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .3s}
.cam video.is-mirror{transform:scaleX(-1)}
.cam.is-live video{opacity:1}
.cam-frame{position:absolute;width:min(62%,300px);aspect-ratio:1;opacity:0;transition:opacity .3s}
.cam.is-live .cam-frame{opacity:1}
.cam-frame i{position:absolute;width:26%;height:26%;border:4px solid #fff;filter:drop-shadow(0 0 4px rgba(0,0,0,.5))}
.cam-frame i:nth-child(1){top:0;left:0;border-right:0;border-bottom:0;border-radius:16px 0 0 0}
.cam-frame i:nth-child(2){top:0;right:0;border-left:0;border-bottom:0;border-radius:0 16px 0 0}
.cam-frame i:nth-child(3){bottom:0;right:0;border-left:0;border-top:0;border-radius:0 0 16px 0}
.cam-frame i:nth-child(4){bottom:0;left:0;border-right:0;border-top:0;border-radius:0 0 0 16px}
.scanline{position:absolute;left:6%;right:6%;top:8%;height:2px;background:linear-gradient(90deg,transparent,#3bc9db,transparent);box-shadow:0 0 12px #3bc9db;animation:scan 2s ease-in-out infinite alternate}
@keyframes scan{to{top:92%}}
.cam.is-hit .cam-frame i{border-color:#3bc9db}
.cam.is-paused .scanline{display:none}
.cam.is-hit::after{content:"";position:absolute;inset:0;border:4px solid #3bc9db;border-radius:22px;animation:flash .5s ease-out}
@keyframes flash{from{background:rgba(59,201,219,.35)}to{background:transparent}}
.cam-idle{position:relative;display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;padding:20px;color:#d5d7dc}
.cam-idle p{margin:0;font-size:14px;line-height:1.6}
.cam-idle-icon{width:70px;height:70px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.08);color:#fff}
.cam .btn--solid{background:#fff;color:#111}
.cam .btn--solid:hover:not(:disabled){background:#e9ecef}
.cam-msg{position:absolute;left:14px;right:14px;bottom:14px;margin:0;padding:10px 14px;border-radius:12px;background:rgba(201,42,42,.92);color:#fff;font-size:13px;line-height:1.5}
.cam-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.cam-state{flex:1;min-width:160px;font-size:13px;color:var(--ink-2)}
.privacy{margin:4px 0 0;display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);line-height:1.5}
.privacy svg{flex:none}

/* 결과 */
.empty{display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding:26px 24px;border-radius:22px;border:1px solid var(--line);background:var(--panel);min-height:200px;justify-content:center}
.empty-mark{width:44px;height:44px;border-radius:12px;background:
  linear-gradient(var(--accent),var(--accent)) 0 0/16px 16px no-repeat,
  linear-gradient(var(--accent),var(--accent)) 100% 0/16px 16px no-repeat,
  linear-gradient(var(--accent),var(--accent)) 0 100%/16px 16px no-repeat,
  linear-gradient(var(--line-2),var(--line-2)) 100% 100%/12px 12px no-repeat;opacity:.85;margin-bottom:6px}
.empty-title{margin:0;font-size:17px;font-weight:700}
.empty-sub{margin:0;font-size:13.5px;color:var(--sub);line-height:1.6}
.status{margin:0;font-size:13px;color:var(--sub);line-height:1.6}
.status:empty{display:none}
.status--err{color:var(--warn);background:var(--warn-soft);border:1px solid var(--warn-line);padding:10px 14px;border-radius:12px}
.status--ok{color:var(--accent-ink)}
.results{display:flex;flex-direction:column;gap:12px}
.results.is-in .rcard{animation:rise .35s ease-out both}
.results.is-in .rcard:nth-child(2){animation-delay:.06s}
.results.is-in .rcard:nth-child(3){animation-delay:.12s}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.rcard{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:18px 20px;display:flex;flex-direction:column;gap:14px;min-width:0}
.rcard--danger,.rcard--otp{border-color:var(--warn-line)}
.rc-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.rc-type{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:700;color:var(--accent-ink);background:var(--accent-soft);padding:5px 12px 5px 10px;border-radius:999px}
.rcard--danger .rc-type,.rcard--otp .rc-type{color:var(--warn);background:var(--warn-soft)}
.rc-no{font-family:var(--mono);font-size:12px;color:var(--muted)}
.rc-actions{display:flex;flex-wrap:wrap;gap:8px}

.url-box{display:flex;flex-direction:column;gap:6px;min-width:0}
.url-label{font-size:12px;color:var(--muted)}
.url-host{font-size:22px;letter-spacing:-.01em;overflow-wrap:anywhere;line-height:1.3}
.url-host b{font-weight:700;color:var(--ink)}
.host-sub{color:var(--sub)}
.url-full{font-family:var(--mono);font-size:12.5px;line-height:1.55;color:var(--ink-2);background:var(--panel-soft);border:1px solid var(--line-3);border-radius:10px;padding:10px 12px;overflow-wrap:anywhere;word-break:break-all;max-height:140px;overflow:auto}
.warn-box{border-radius:14px;padding:12px 14px;background:var(--caution-soft);border:1px solid var(--caution-line);color:var(--caution);font-size:13px;line-height:1.6}
.warn-box b{display:block;font-size:13.5px;margin-bottom:4px}
.warn-box ul{margin:2px 0 6px;padding-left:18px}
.warn-box p{margin:0;color:#7a5a1e}
.warn-box.is-strong{background:var(--warn-soft);border-color:var(--warn-line);color:var(--warn)}
.warn-box.is-strong p{color:#8f3b3b}
.confirm{border-radius:14px;padding:12px 14px;border:2px solid var(--accent);background:var(--accent-soft);display:flex;flex-direction:column;gap:10px}
.confirm p{margin:0;font-size:14px;line-height:1.5;overflow-wrap:anywhere}
.confirm-btns{display:flex;gap:8px;flex-wrap:wrap}

.kvs{margin:0;display:flex;flex-direction:column;border-top:1px solid var(--line-3)}
.kv{display:grid;grid-template-columns:96px minmax(0,1fr);gap:12px;padding:10px 0;border-bottom:1px solid var(--line-3);align-items:center}
.kv dt{font-size:12.5px;color:var(--muted)}
.kv dd{margin:0;display:flex;align-items:center;gap:6px;min-width:0;flex-wrap:wrap}
.kv-v{font-size:15px;font-weight:500;overflow-wrap:anywhere;min-width:0;flex:1 1 auto;white-space:pre-wrap}
.kv-v.mono,.pw{font-family:var(--mono)}
.pw.is-masked{letter-spacing:.1em;color:var(--sub)}
.mini{height:26px;padding:0 10px;border:1px solid var(--line-2);border-radius:999px;background:transparent;font-size:12px;cursor:pointer;flex:none}
.mini:hover{background:var(--hover)}
.hint{margin:0;font-size:12.5px;color:var(--sub);line-height:1.6}
.big-num{margin:0;font-family:var(--mono);font-size:28px;font-weight:500;letter-spacing:.02em;overflow-wrap:anywhere}
.txt{margin:0;font-size:16px;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere;max-height:320px;overflow:auto}
.meta-line{margin:-6px 0 0;font-size:12px;color:var(--muted);font-family:var(--mono)}
.raw summary{font-size:12.5px;color:var(--sub);cursor:pointer}
.raw pre{margin:8px 0 0;font-family:var(--mono);font-size:12px;line-height:1.55;white-space:pre-wrap;word-break:break-all;background:var(--panel-soft);border:1px solid var(--line-3);border-radius:10px;padding:10px 12px;max-height:220px;overflow:auto;color:var(--ink-2)}

.recent{display:flex;flex-direction:column;gap:6px;margin-top:6px}
.recent-head{display:flex;justify-content:space-between;align-items:center;font-size:13px;font-weight:700}
.recent ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.rec{width:100%;display:flex;align-items:center;gap:10px;padding:8px 10px;border:1px solid var(--line-3);border-radius:10px;background:var(--panel);cursor:pointer;text-align:left;font-size:13px}
.rec:hover{border-color:var(--accent)}
.rec-type{flex:none;font-size:11px;color:var(--accent-ink);background:var(--accent-soft);padding:2px 8px;border-radius:999px}
.rec-text{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink-2)}
.rec time{flex:none;font-family:var(--mono);font-size:11px;color:var(--muted)}
.recent-note{margin:0;font-size:11.5px;color:var(--muted)}

@media (max-width:900px){
  .qr{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:640px){
  .topbar{padding:14px 16px}
  .qr{padding:16px 16px 48px;gap:16px}
  .drop{min-height:240px;border-radius:18px}
  .cam{border-radius:18px;aspect-ratio:3/4}
  .tabs{align-self:stretch}
  .tab{flex:1;justify-content:center}
  .rcard{padding:16px 14px}
  .kv{grid-template-columns:76px minmax(0,1fr);gap:8px}
  .url-host{font-size:19px}
  .engine{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .scanline{display:none}
}

.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:var(--ink);color:#fff;padding:10px 18px;border-radius:999px;font-size:13px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:50;max-width:calc(100vw - 32px)}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* 다크 모드 (인쇄는 라이트 그대로) */
@media screen{
  :root[data-theme="dark"]{
    color-scheme:dark;
    --bg:#141318; --surface:#1a1920; --panel:#1f1e26; --panel-soft:#24232c;
    --ink:#ecebf0; --ink-hover:#ffffff; --ink-2:#c9c7d1; --sub:#a09eab; --muted:#8a8895;
    --line:#2e2d36; --line-2:#393843; --line-3:#26252d; --hover:#2a2932; --soft:#26252d; --track:#34333d;
    --accent:#3bc9db; --accent-ink:#66d9e8; --accent-soft:rgba(59,201,219,.14);
    --warn:#ff8787; --warn-soft:rgba(255,135,135,.1); --warn-line:rgba(255,135,135,.3);
    --caution:#ffc94d; --caution-soft:rgba(255,201,77,.08); --caution-line:rgba(255,201,77,.28);
  }
  :root[data-theme="dark"] .btn--solid,:root[data-theme="dark"] .toast{color:var(--bg)}
  :root[data-theme="dark"] .cam .btn--solid{color:#111}
  :root[data-theme="dark"] .tab.is-active{background:var(--line-2);box-shadow:0 1px 3px rgba(0,0,0,.4)}
  :root[data-theme="dark"] .warn-box p{color:#e6cf9a}
  :root[data-theme="dark"] .warn-box.is-strong p{color:#f2b8b8}
  :root[data-theme="dark"] .cam{background:#0c0d10;border:1px solid var(--line)}
}