:root{--ink:#173634;--muted:#586b68;--accent:#176657;--bg:#f5f7f5;--line:#dce4df;--card:#fff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 'Malgun Gothic',system-ui,sans-serif}.demo{padding:8px 20px;text-align:center;background:#e7eee8;color:#36564c;font-size:13px}header{height:96px;background:white;border-bottom:1px solid var(--line);padding:0 max(6vw,24px);display:flex;align-items:center;justify-content:space-between}.brand{font-size:25px;font-weight:800;text-decoration:none;color:var(--ink);letter-spacing:-1px}.brand span{color:var(--accent)}.brand small{display:inline-block;margin-left:20px;padding-left:20px;border-left:1px solid var(--line);font-size:13px;letter-spacing:0;font-weight:400}main{max-width:1180px;margin:0 auto;padding:56px 32px;min-height:calc(100vh - 220px)}h1{font-size:36px;letter-spacing:-1.7px;line-height:1.35;margin:8px 0 12px}h2{font-size:19px;margin:0}p{margin:8px 0 20px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--accent)}.sub,.hint{color:var(--muted)}.hint{font-size:13px}.title-row,.section-top,.modal-top{display:flex;justify-content:space-between;align-items:center;gap:20px}.tag{font-size:13px;padding:8px 14px;border:1px solid #bbd3c7;border-radius:24px;color:var(--accent);white-space:nowrap}nav{display:flex;gap:26px;border-bottom:1px solid var(--line);margin:30px 0}.tab{background:transparent;color:var(--muted);border-radius:0;border:0;border-bottom:3px solid transparent;padding:12px 0}.tab.active{color:var(--ink);border-bottom-color:var(--accent)}button,.button{min-height:44px;padding:10px 20px;border:1px solid transparent;border-radius:8px;background:var(--accent);color:#fff;cursor:pointer;font:inherit;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;transition:background .18s}button:hover,.button:hover{background:#104f43}button:disabled{opacity:.6;cursor:wait}.secondary{background:white;border-color:var(--line);color:var(--ink)}.secondary:hover,.quiet:hover{background:#eaf0ec}.quiet{background:transparent;color:var(--muted);font-size:13px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #b28732;outline-offset:3px}.filters{display:flex;align-items:end;gap:14px;background:#fff;border:1px solid var(--line);padding:24px;border-radius:12px}.grow{flex:1}label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}input,select{height:46px;border:1px solid #c4d0c8;border-radius:7px;background:#fff;color:var(--ink);padding:10px 12px;font:inherit;font-size:14px;width:100%}.filters select{min-width:140px}.section-top{margin:28px 0 14px}.section-top p{font-size:13px;color:var(--muted);margin:0}#count{color:var(--accent);margin-left:6px}.panel{background:white;border:1px solid var(--line);border-radius:12px;overflow:hidden}.worksheet{display:grid;grid-template-columns:50px 1fr 90px 100px 80px;align-items:center;gap:16px;padding:24px}.worksheet+.worksheet,.history-item+.history-item{border-top:1px solid var(--line)}.file-icon{display:grid;place-items:center;background:#edf4ef;color:var(--accent);height:52px;border-radius:8px;font-size:12px;font-weight:700}.worksheet h3{font-size:16px;margin:0}.worksheet small{color:var(--muted);font-size:12px}.badge{font-size:13px;color:var(--muted)}aside{font-size:13px;color:var(--muted);padding:22px 0}.empty{padding:48px;text-align:center;color:var(--muted)}.history-item{padding:22px;display:flex;justify-content:space-between;align-items:center;gap:20px}.history-item h3{margin:0;font-size:16px}.history-item p{font-size:13px;color:var(--muted);margin:6px 0}.actions{display:flex;gap:8px;flex-shrink:0}.welcome{padding:55px 0 90px}.welcome h1{font-size:50px}.welcome>p:not(.eyebrow){line-height:1.9}.welcome button{margin-top:16px}dialog{border:0;border-radius:16px;padding:30px;width:min(500px,calc(100% - 32px));color:var(--ink);box-shadow:0 24px 90px #163c322b}dialog::backdrop{background:#16352e65}dialog h2{font-size:23px;line-height:1.45;margin:16px 0}dialog label{margin-top:20px}.required{font-size:11px;color:var(--accent);margin-left:5px}.note{background:#f0f5f1;padding:14px;font-size:13px;color:var(--muted);margin:22px 0;border-radius:8px}.full{width:100%}#form-error{color:#a22b28;font-size:14px}footer{max-width:1180px;margin:auto;padding:24px 32px;border-top:1px solid var(--line);font-size:12px;letter-spacing:1px;color:var(--muted);display:flex;justify-content:space-between}footer span{letter-spacing:0}[hidden]{display:none!important}@media(max-width:700px){header{height:80px;padding:0 20px}.brand small{display:none}main{padding:32px 20px}h1{font-size:28px}.welcome h1{font-size:38px}.title-row{align-items:start}.tag{display:none}.filters{flex-wrap:wrap;padding:16px}.filters .grow{flex-basis:100%}.filters>div{flex:1}.filters select{min-width:0}.filters button{width:100%}.worksheet{grid-template-columns:40px 1fr 70px;padding:18px;gap:12px}.worksheet>.badge{display:none}.section-top p{display:none}.history-item{display:block}.actions{margin-top:12px}footer{display:block}.demo{font-size:12px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* Brand asset and restrained service copy */
.brand{display:flex;align-items:center;gap:0;min-width:0}.brand img{width:190px;height:auto;display:block}.brand small{white-space:nowrap}.title-row h1{font-size:32px;letter-spacing:-1px}.title-row{padding:8px 0}.welcome h1{font-size:40px}
@media(max-width:700px){.brand img{width:145px}.title-row h1{font-size:27px}.welcome h1{font-size:32px}}


footer{display:block;text-align:center;letter-spacing:0}


/* AramBridge: soft aqua surfaces, warm brown details, quiet rounded cards. */
:root{--ink:#243c3d;--muted:#5b7071;--accent:#087f80;--bg:#f4f7f7;--line:#dce7e5;--brand-aqua:#29a9a9;--brand-brown:#71473b}
body{background:radial-gradient(ellipse at 92% 12%,#e6f4f1 0,transparent 40%),var(--bg)}
header{height:92px;border-bottom-color:#e7efed}.brand small{color:var(--muted)}main{padding-top:36px}
.title-row{position:relative;min-height:205px;padding:30px 36px;background:linear-gradient(115deg,#e0f2ef 0%,#ecf7f4 62%,#f6faf7 100%);border:1px solid #d8ebe5;border-radius:22px;overflow:hidden;isolation:isolate}
.title-row .eyebrow{margin:0 0 10px;letter-spacing:.5px;font-size:12px;color:#326e68}.title-row h1{font-size:34px;margin:0 0 12px}.title-row .sub{margin:0;max-width:560px}.title-row>div:first-child{z-index:1;max-width:72%}
.hero-art{position:relative;width:190px;height:156px;flex-shrink:0;margin:0 16px 0 8px}.paper{position:absolute;width:112px;height:140px;border-radius:10px;background:#fff;border:1px solid #daebe5;box-shadow:0 10px 20px #377d6e12}.paper-back{right:7px;top:4px;transform:rotate(13deg);background:#bde2d9}.paper-front{left:24px;top:6px;transform:rotate(-8deg);padding:16px 12px}.paper-label{font-size:10px;font-weight:700;color:var(--brand-brown)}.paper i{display:block;height:4px;background:#dceae7;border-radius:4px;margin-top:9px;width:75%}.paper i+i{width:50%;margin-top:5px}.paper-shapes{display:flex;gap:5px;margin-top:15px;align-items:center}.paper-shapes b{width:20px;height:20px;border-radius:50%;background:#94d5cd}.paper-shapes b:nth-child(2){background:#e2c1a2;border-radius:5px;transform:rotate(12deg)}.paper-shapes b:nth-child(3){background:#b8d89c;border-radius:4px 14px 4px 14px}.paper-seal{position:absolute;bottom:9px;right:9px;font-size:8px;color:#357e70;padding:2px 5px;background:#e9f5ee;border-radius:5px}.art-dot{position:absolute;border-radius:50%;background:#85c9bc;width:10px;height:10px}.dot-one{right:-7px;top:40px}.dot-two{left:0;bottom:20px;width:6px;height:6px;background:#c99c7b}
nav{margin:24px 0}.tab{padding:12px 4px}.tab.active{font-weight:700}.filters{border-radius:16px;border-color:#e0e9e6;box-shadow:0 5px 18px #264f4310;padding:26px}.filters label{font-size:13px;color:#486461}input,select{border-color:#d3e1dd;border-radius:9px;background:#fcfefd}button,.button{border-radius:10px}button:hover,.button:hover{background:#06686a}.secondary:hover,.quiet:hover{background:#edf6f3}.panel{border-radius:16px;border-color:#e0e9e6;box-shadow:0 4px 16px #284d4310}.worksheet{padding:26px;transition:background .18s}.worksheet:hover{background:#f8fcfa}.file-icon{background:linear-gradient(145deg,#e2f3ef,#f0f7f4);border:1px solid #d5e9e3;color:#257d75;border-radius:12px;position:relative;font-size:11px;box-shadow:inset 0 1px 0 #fff}.worksheet h3{color:#2a4441}.badge{display:inline-flex;justify-content:center;padding:4px 10px;border-radius:20px;background:#f1f6f3;font-size:12px;white-space:nowrap}.worksheet>.badge:nth-of-type(2){background:#f8f2ec;color:#785849}.section-top h2{font-size:17px}.section-top p{font-size:12px}aside{padding:18px 0;color:#637975}footer{border-top-color:#dfe9e6;color:#708480}dialog{border:1px solid #dbe9e3}.note{background:#edf7f2}#global-status{font-size:13px;color:#416b61}
@media(max-width:700px){header{height:80px}main{padding-top:24px}.title-row{padding:26px 22px;min-height:180px;border-radius:18px;align-items:center}.title-row>div:first-child{max-width:100%}.title-row h1{font-size:28px}.title-row .sub{font-size:14px;max-width:250px}.hero-art{display:none}.filters{padding:18px}.worksheet{padding:20px 16px}.worksheet>.badge{display:none}.welcome{padding-top:30px}}


/* Unified Pretendard typography */
@font-face{font-family:Pretendard;src:url("/fonts/PretendardVariable.woff2") format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
body{font-family:Pretendard,sans-serif;font-size:16px;line-height:1.6;letter-spacing:-.2px;-webkit-font-smoothing:antialiased}button,input,select,textarea{font-family:inherit;letter-spacing:inherit}h1,h2,h3,p{word-break:keep-all;overflow-wrap:break-word}.title-row .eyebrow{font-size:13px;font-weight:500;line-height:20px;letter-spacing:0;margin:0 0 10px}.title-row h1{font-size:32px;line-height:42px;letter-spacing:-.8px;font-weight:700;margin:0 0 12px}.title-row .sub{font-size:16px;line-height:26px;font-weight:400;letter-spacing:-.25px}.brand small{font-size:14px;line-height:22px;font-weight:500}#identity{font-size:14px;font-weight:500}.tab{font-size:15px;line-height:24px;font-weight:500}.tab.active{font-weight:600}.filters label{font-size:14px;line-height:22px;font-weight:600;margin-bottom:8px}input,select{font-size:15px;font-weight:400}button,.button{font-size:14px;font-weight:600;line-height:22px}.section-top h2{font-size:18px;font-weight:600;line-height:28px}.section-top p{font-size:13px;line-height:22px}.worksheet h3{font-size:17px;font-weight:600;line-height:26px;letter-spacing:-.3px}.worksheet small{display:block;font-size:13px;font-weight:400;line-height:21px;margin-top:4px}.badge{font-size:13px;line-height:20px;font-weight:500}aside{font-size:13px;line-height:22px}footer{font-size:12px;line-height:20px}.paper-logo{display:block;width:78px;height:auto;margin:2px 0 12px}.paper-front{padding-top:16px}.paper i{margin-top:7px}.paper-seal{font-size:9px;font-weight:500;line-height:14px}dialog h2{font-size:23px;font-weight:700;line-height:32px;letter-spacing:-.4px}dialog .sub{font-size:15px;line-height:24px}
@media(max-width:700px){.title-row h1{font-size:28px;line-height:36px}.title-row .sub{font-size:15px;line-height:24px}.worksheet h3{font-size:16px;line-height:24px}}


/* Topic removed from worksheet lists. */
.worksheet{grid-template-columns:50px 1fr 90px 80px}@media(max-width:700px){.worksheet{grid-template-columns:40px 1fr 70px}}