:root{color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans KR",sans-serif;color:#292923;background:#f3f2ed;font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid #c57b12;outline-offset:5px}.site-header{max-width:1320px;margin:auto;padding:38px 64px;display:flex;justify-content:space-between;align-items:center}.brand{display:flex;align-items:center;color:inherit;text-decoration:none;font-size:23px;font-weight:700;letter-spacing:-1px}.brand-icon{display:grid;place-items:center;background:#292923;color:#f3f2ed;width:28px;height:28px;border-radius:8px;margin-right:10px;font-size:24px}.brand-dot{color:#c6812d}.edition{font-size:12px;color:#85857a;letter-spacing:.04em}main{max-width:1050px;min-height:calc(100svh - 201px);margin:auto;display:flex;align-items:center;justify-content:space-between;gap:60px;padding:30px 55px 50px}.intro{padding-bottom:14px}.eyebrow{display:flex;align-items:center;gap:9px;color:#828277;letter-spacing:2px;font-size:10px;font-weight:600}.eyebrow span{height:6px;width:6px;background:#cf8b37;border-radius:50%}h1{font-size:clamp(36px,4vw,49px);font-weight:600;letter-spacing:-2.5px;line-height:1.4;margin:27px 0 21px}.intro p{font-size:15px;line-height:1.9;color:#85857b;letter-spacing:-.4px}.keyboard-note{margin-top:66px;display:flex;align-items:center;gap:13px;color:#8b8b80;font-size:12px;line-height:1.9}.keyboard-note small{font-size:10px;color:#a4a497}.key-icon{font-size:23px;border:1px solid #d9d8cf;width:39px;height:39px;border-radius:10px;display:grid;place-items:center}.calculator{position:relative;flex-shrink:0;width:354px;background:#171717;border:1px solid #353534;border-radius:37px;color:white;padding:24px 22px 15px;box-shadow:0 30px 60px -22px #29251c50,0 7px 18px -8px #29251c30;overflow:hidden}.calc-top{display:flex;align-items:center;justify-content:space-between;padding:2px 5px;color:#8c8c8c;font-size:12px;letter-spacing:1px}.history-toggle{background:transparent;border:0;color:#8c8c8c;display:grid;place-items:center;padding:5px}.history-toggle:hover{color:#ff9f0a}.display-area{height:160px;display:flex;flex-direction:column;align-items:flex-end;justify-content:flex-end;padding:15px 6px 17px;gap:8px;overflow:hidden}.expression{height:20px;color:#929292;font-size:14px;white-space:nowrap;max-width:100%;overflow:hidden;text-overflow:ellipsis}output{display:block;max-width:100%;font-size:68px;font-weight:300;line-height:1.12;letter-spacing:-2px;font-variant-numeric:tabular-nums;white-space:nowrap}.keypad{display:grid;grid-template-columns:repeat(4,1fr);gap:11px}.key{border:0;border-radius:50%;aspect-ratio:1;background:#333;color:#fafafa;font-size:29px;font-weight:400;transition:background .15s,transform .12s;display:flex;align-items:center;justify-content:center;user-select:none;touch-action:manipulation}.key:hover{background:#484848}.key:active,.key.pressed{transform:scale(.93);background:#737373}.utility{background:#a5a5a5;color:#151515;font-size:25px}.utility:hover{background:#c6c6c6}.operator{background:#ff9f0a;font-size:36px;font-weight:400}.operator:hover{background:#ffb440}.operator[aria-pressed="true"]{background:#fff;color:#ed9408}.operator:active,.operator.pressed{background:#ffd28c}.zero{grid-column:span 2;aspect-ratio:auto;border-radius:50px;justify-content:flex-start;padding-left:27px}.home-indicator{width:100px;height:4px;border-radius:5px;background:#646464;margin:24px auto 0}footer{max-width:1320px;margin:auto;padding:27px 64px 30px;display:flex;justify-content:space-between;align-items:center;border-top:1px solid #e1e0d8;color:#96968a;font-size:10px;letter-spacing:1.5px}footer>span:last-child{display:flex;align-items:center;gap:14px;letter-spacing:.1px}.footer-spark{font-size:21px;color:#aeae9f}@media(min-width:1500px){main{min-height:calc(100svh - 215px)}}@media(max-width:780px){.site-header{padding:25px 28px}.edition{font-size:10px}main{gap:35px;padding:25px 28px 45px;justify-content:center}.intro{display:none}footer{padding:22px 28px}.calculator{width:354px}}@media(max-width:420px){:root{color-scheme:dark;background:#171717}.site-header,footer{display:none}main{min-height:100svh;padding:0;align-items:center}.calculator{width:100%;max-width:390px;border:0;border-radius:0;box-shadow:none;padding:22px 20px 14px}.display-area{height:clamp(140px,25svh,230px)}.keypad{gap:12px}.home-indicator{margin-top:28px}.key:focus-visible{outline-offset:2px}}@media(prefers-reduced-motion:reduce){.key{transition:none}}

/* ??? ?? ?? ??? ?? ? */
main{max-width:1280px;display:grid;grid-template-columns:minmax(240px,1fr) 354px 300px;gap:32px;padding-left:32px;padding-right:32px}
.history-panel{height:654px;min-width:0;background:#faf9f5;border:1px solid #deddd4;border-radius:26px;padding:25px 22px;display:flex;flex-direction:column;color:#292923;box-shadow:0 12px 35px -25px #29251c30}
.history-panel:focus-visible{outline:2px solid #c6812d;outline-offset:5px}
.history-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}
.history-heading h2{font-size:18px;font-weight:600;margin:0;letter-spacing:-.6px}
#history-count{font-size:11px;color:#a37335;background:#efe7d8;padding:5px 9px;border-radius:20px;font-variant-numeric:tabular-nums}
.log-clock{padding:22px 0 17px;border-bottom:1px solid #e6e4db;display:flex;flex-direction:column;gap:7px}
#current-date{font-size:12px;color:#8b897f}
#current-time{font-size:31px;font-weight:300;letter-spacing:1px;font-variant-numeric:tabular-nums}
.history-caption{font-size:10px;color:#969287;margin:15px 0 5px}
#history-list{list-style:none;margin:0;padding:0;overflow-y:auto;flex:1;min-height:0;scrollbar-width:thin;scrollbar-color:#d5d1c6 transparent}
#history-list li{padding:16px 2px;border-bottom:1px solid #e6e4db;text-align:right;overflow-wrap:anywhere}
#history-list time{display:block;font-size:10px;color:#9c978b;margin-bottom:9px;font-variant-numeric:tabular-nums}
.log-formula{display:block;font-size:13px;color:#8a8579}
#history-list strong{display:block;font-size:26px;font-weight:500;color:#38352e;margin-top:5px;font-variant-numeric:tabular-nums}
#history-list .empty-history{border:0;text-align:center;padding:65px 0;font-size:13px;color:#a39c8e}
.history-session{margin:16px 0 0;color:#a39c8e;font-size:10px;text-align:center}
#clear-history{background:#eeece4;color:#777164;border:0;border-radius:12px;padding:13px;margin-top:12px;font-size:12px}
#clear-history:hover:not(:disabled){background:#e4e0d5}
#clear-history:disabled{opacity:.45;cursor:default}
@media(max-width:1200px){main{grid-template-columns:354px 300px;justify-content:center}.intro{display:none}}
@media(max-width:760px){main{grid-template-columns:minmax(0,354px);gap:28px;padding:20px 20px 36px}.history-panel{width:100%;height:460px}.site-header{padding:25px 24px}.edition{font-size:10px}}
@media(max-width:420px){main{padding:0 0 24px;grid-template-columns:minmax(0,390px)}.calculator{width:100%}.history-panel{width:calc(100% - 32px);justify-self:center;background:#202020;border-color:#383838;color:#eee}.log-clock,#history-list li{border-color:#383838}#history-list strong{color:#fafafa}#current-date,.history-caption,.log-formula{color:#aaa396}#history-count{background:#3d3223;color:#edba72}#clear-history{background:#333;color:#ddd}#clear-history:hover:not(:disabled){background:#444}}

.brand{height:28px}
.page-logo{display:block;height:56px;width:auto;max-width:100%;object-fit:contain}

/* 회사 색상 */
.calculator{color-scheme:light;background:#f0f1f2;border-color:#d9dddb;color:#222b27}
.calc-top,.history-toggle{color:#69756f}
.history-toggle:hover{color:#0f6e56}
.expression{color:#69756f}
.key{background:#fff;color:#222b27}
.key:hover{background:#e7eeea}
.key:active,.key.pressed{background:#d6e4dc}
.utility{background:#dce3df;color:#263c32}
.utility:hover{background:#ccd9d1}
.operator{background:#0f6e56;color:#fff}
.operator:hover{background:#0c5d49}
.operator[aria-pressed="true"]{background:#d4e9df;color:#0f6e56}
.operator:active,.operator.pressed{background:#094b3b;color:#fff}
.key:focus-visible,.history-toggle:focus-visible{outline-color:#0f6e56}
.home-indicator{background:#a7b4ad}

/* 카메라는 계산 로그 다음에 배치합니다. */
main{max-width:1600px;grid-template-columns:minmax(180px,1fr) 354px 300px 300px}
.camera-panel{height:654px;min-width:0;padding:25px 22px;background:#faf9f5;border:1px solid #deddd4;border-radius:26px;color:#292923;display:flex;flex-direction:column;box-shadow:0 12px 35px -25px #29251c30}
.camera-heading{display:flex;align-items:center;justify-content:space-between;gap:8px}
.camera-heading h2{margin:0;font-size:18px;font-weight:600;letter-spacing:-.6px}
.camera-badge{background:#e3eee8;color:#0f6e56;padding:5px 8px;border-radius:20px;font-size:10px;white-space:nowrap}
.camera-preview{position:relative;aspect-ratio:4/3;flex-shrink:0;background:#e6ebe7;border-radius:16px;overflow:hidden;margin-top:22px}
#camera-video{display:block;width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}
#camera-placeholder{position:absolute;inset:0;display:grid;place-content:center;text-align:center;font-size:13px;color:#6b7d72;line-height:1.8;margin:0}
#camera-placeholder[hidden]{display:none}
#camera-status{font-size:12px;line-height:1.7;color:#52675b;min-height:41px;margin:14px 0 10px}
.camera-metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:16px 0;border-top:1px solid #e0e5df;border-bottom:1px solid #e0e5df}
.camera-metrics span{display:block;font-size:10px;color:#7b847b}
.camera-metrics strong{display:block;margin-top:8px;font-size:23px;font-weight:500;color:#0f6e56;font-variant-numeric:tabular-nums}
.camera-rule,.camera-privacy{font-size:11px;line-height:1.8;margin:14px 0 0;color:#6b776d}
.camera-privacy{font-size:10px;color:#81897f;margin-top:10px}
.camera-actions{display:flex;gap:8px;margin-top:auto;padding-top:16px}
.camera-actions button{flex:1;border:0;border-radius:12px;padding:13px 8px;font-size:12px;background:#e5ebe5;color:#486352}
#camera-toggle{background:#0f6e56;color:#fff}
#camera-toggle:hover{background:#0c5d49}
#alert-test:hover{background:#d5e1d6}
#camera-alert{min-height:20px;font-size:12px;font-weight:600;color:#a8441c;margin:12px 0 0;line-height:1.6}
#wake-flash{position:fixed;inset:0;z-index:1000;pointer-events:none;background:#fff;opacity:0}
#wake-flash.active{animation:wake-pulse .45s step-end 2}
/* 흰색 0.3초 + 간격 0.15초를 두 번 반복합니다. */
@keyframes wake-pulse{0%{opacity:1}66.666667%,100%{opacity:0}}
@media(min-width:1451px){.intro{display:block}}
@media(max-width:1450px){main{max-width:1082px;grid-template-columns:354px 300px 300px;gap:24px;padding-left:24px;padding-right:24px}.intro{display:none}}
@media(max-width:1100px){main{max-width:766px;grid-template-columns:354px 300px;gap:28px}.camera-panel{grid-column:2;height:auto;min-height:600px}}
@media(max-width:760px){main{grid-template-columns:minmax(0,354px);padding:20px 20px 36px}.camera-panel{grid-column:1;width:100%;min-height:600px}}
@media(max-width:420px){main{padding:0 0 24px;grid-template-columns:minmax(0,390px)}.camera-panel{width:calc(100% - 32px);justify-self:center}}
@media(min-width:1880px){main{position:relative;max-width:1280px;grid-template-columns:minmax(240px,1fr) 354px 300px;gap:32px;padding-left:32px;padding-right:32px}.camera-panel{position:absolute;left:100%;top:calc(50% - 10px);transform:translateY(-50%);width:300px}}