:root{--ink:#202b3b;--muted:#8692a6;--cream:#f6f4ef;--line:#e9e5dc;--mint:#ddf4ec;--teal:#399d82;--blue:#5861e8;--red:#d64545;font-family:-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo','Malgun Gothic','Segoe UI',sans-serif}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--cream);color:var(--ink)}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
[hidden]{display:none!important}
.main{max-width:560px;margin:0 auto;padding:calc(18px + env(safe-area-inset-top)) 16px calc(92px + env(safe-area-inset-bottom))}
.topbar{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:14px;gap:10px}
.eyebrow{color:var(--muted);font-size:12px;margin-bottom:5px}
h1{font-size:24px;margin:0;letter-spacing:-.04em}
h2{margin:0}
h3{margin:0 0 4px;font-size:16px}
.sub{color:var(--muted);font-size:12px;line-height:1.5;margin:0}
.rec-pill{background:#fdecec;color:var(--red);border-radius:16px;padding:7px 12px;font-weight:700;font-size:13px;white-space:nowrap}
.offline{background:#fff4e2;border:1px solid #f1d5a6;color:#9a6a24;border-radius:14px;padding:12px 14px;font-size:13px;margin-bottom:12px}

.device-card{width:100%;display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:11px 13px;margin-bottom:14px;text-align:left}
.dot{width:10px;height:10px;border-radius:50%;background:#b8bfcb;box-shadow:0 0 0 4px #b8bfcb33;flex:none}
.dot.on{background:#52c19c;box-shadow:0 0 0 4px #52c19c33}
.dot.demo{background:#e3a24e;box-shadow:0 0 0 4px #e3a24e33}
.dot.busy{background:var(--blue);box-shadow:0 0 0 4px #5861e833}
.device-text{flex:1;min-width:0}
.device-text b{display:block;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.device-text small{display:block;color:var(--muted);font-size:11px;margin-top:2px}
.battery{display:flex;align-items:center;gap:6px}
.battery i{display:block;width:44px;height:6px;border-radius:4px;background:#f0f1f6;overflow:hidden}
.battery em{display:block;height:100%;background:#52c19c;border-radius:4px}
.battery em.low{background:var(--red)}
.battery small{font-size:11px;color:var(--muted)}

.banner{background:linear-gradient(115deg,#e5f7f0,#edf0ff);border:1px solid #e3ebe5;border-radius:22px;padding:20px;margin-bottom:14px}
.banner h2{font-size:19px;letter-spacing:-.03em}
.banner p{color:#6e7c8f;font-size:13px;margin:6px 0 10px;line-height:1.5}
.tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{background:#fff;color:var(--teal);border-radius:12px;padding:4px 10px;font-size:11px}
.tag:empty{display:none}
.tag.blue{background:#f1f3ff;color:#6266cb}
.tag.warn{background:#fff1d7;color:#bd8246}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:14px}
.metric{background:#ffffffc0;border-radius:14px;padding:11px 12px}
.metric b{display:block;font-size:19px}
.metric b small{font-size:11px;font-weight:500;color:var(--muted)}
.metric span{font-size:11px;color:var(--muted)}

.card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;margin-bottom:14px}
.section-head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:12px}
.seg{display:flex;background:#f3f1ec;border-radius:11px;padding:3px;gap:2px;flex:none}
.seg button{border:0;background:transparent;border-radius:9px;padding:6px 10px;font-size:12px;color:var(--muted)}
.seg button.on{background:#fff;color:var(--blue);font-weight:700;box-shadow:0 1px 3px #0001}
.seg button:disabled{opacity:.5}
.seg.wide button{flex:1}

.ch-row{display:grid;grid-template-columns:46px 1fr 60px;align-items:center;gap:8px;padding:8px 0;border-top:1px solid #f1efe9}
.ch-row:first-of-type{border-top:0}
.ch-name b{display:flex;align-items:center;gap:5px;font-size:13px}
.ch-name i,.legend i{display:inline-block;width:8px;height:8px;border-radius:2px}
.ch-name small{display:block;color:var(--muted);font-size:11px;margin-top:2px}
.ch-val{text-align:right}
.ch-val b{display:block;font-size:15px}
.ch-val small{color:var(--muted);font-size:11px}
canvas{width:100%;height:70px;display:block}
canvas.imu{height:170px;margin:6px 0 8px}
.legend{display:flex;gap:12px;font-size:12px;color:var(--muted)}
.legend span{display:flex;align-items:center;gap:5px}
.legend i{border-radius:50%}

.chips{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.chip{border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px 10px;font-size:13px;color:#485468}
.chip.on{background:#e7f7f0;border-color:#bce8d6;color:#328a70;font-weight:700}
.chip:disabled{opacity:.55}
.field{display:grid;gap:6px;margin-bottom:12px}
.field label{font-size:12px;font-weight:700;color:#5d6879}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.input{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:12px;background:#fff;outline:none;font-size:16px}
.input:focus{border-color:#868af1;box-shadow:0 0 0 3px #eef0ff}
.input:disabled{background:#faf9f6;color:var(--muted)}

.primary,.secondary,.danger,.r0{border-radius:13px;padding:13px 16px;font-weight:700;font-size:14px;width:100%}
.primary{border:0;background:var(--blue);color:#fff;box-shadow:0 7px 16px #5861e83a}
.primary:disabled{background:#bfc2f2;box-shadow:none}
.secondary{border:1px solid var(--line);background:#fff}
.danger{border:1px solid #f0c2c2;background:#fff;color:#b04a4a}
.r0{border:1px solid #f1d5a6;background:#fff4e2;color:#9a6a24;margin:4px 0 10px}
.r0.done{background:#e7f7f0;border-color:#bce8d6;color:#328a70}
.r0:disabled,.secondary:disabled,.danger:disabled{opacity:.55}
.big{padding:16px;font-size:15px;margin-top:14px}
.progress-row{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:8px}
.progress{height:8px;background:#f0f1f6;border-radius:6px;overflow:hidden}
.progress i{display:block;height:100%;width:0;background:var(--blue);border-radius:6px;transition:width .4s}
#last-saved{margin-top:10px;word-break:break-all}

.found{display:grid;gap:8px;margin:12px 0}
.found button{display:flex;justify-content:space-between;align-items:center;border:1px solid var(--line);background:#fff;border-radius:13px;padding:13px 14px;font-weight:700}
.found button span{color:var(--blue);font-size:13px}
.found button b{text-align:left}
.found button small{display:block;font-weight:400;font-size:11px;color:var(--muted);margin-top:2px}
.status-line{display:flex;gap:12px;align-items:center;margin:4px 0 14px;font-size:13px}

.tabbar{position:fixed;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(3,1fr);background:#f7f5f0f2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--line);padding:6px 6px calc(6px + env(safe-area-inset-bottom));z-index:5}
.tabbar button{border:0;background:transparent;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:11px;color:#485468;padding:6px 0}
.tabbar svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.tabbar svg .fill{fill:currentColor;stroke:none}
.tabbar button.active{color:var(--blue);font-weight:700}

.toast{position:fixed;left:50%;bottom:calc(84px + env(safe-area-inset-bottom));transform:translate(-50%,16px);background:#263448;color:#fff;border-radius:12px;padding:12px 16px;font-size:13px;line-height:1.5;opacity:0;transition:.25s;pointer-events:none;z-index:10;width:max-content;max-width:calc(100% - 32px);white-space:pre-line}
.toast.show{opacity:1;transform:translate(-50%,0)}

.login{position:fixed;inset:0;z-index:20;background:var(--cream);display:grid;place-items:center;padding:24px}
.login-card{width:100%;max-width:340px;display:grid;gap:12px;text-align:center;justify-items:center}
.login-card img{border-radius:16px;box-shadow:0 7px 14px #5556e844}
.login-card .input{text-align:center}
.login-msg{color:#b04a4a;font-size:13px;min-height:18px}
.tabbar.four{grid-template-columns:repeat(4,1fr)}
.files{display:grid;gap:6px;margin-bottom:12px}
.files div{display:flex;justify-content:space-between;gap:8px;font-size:12px;background:#f8f8fb;border-radius:10px;padding:9px 11px;word-break:break-all}
.files small{color:var(--muted);white-space:nowrap}
.files:empty::before{content:'대기 중인 파일이 없어요.';color:var(--muted);font-size:12px}
#tab-save .secondary,#tab-save .primary{margin-top:8px}
.offline b{font-weight:800}
#login-form{display:grid;gap:8px;margin-top:10px}