:root{--bg:#e9eef2;--panel:#fff;--ink:#10243a;--mute:#5d6e80;--line:#cfd9e1;--acc:#0b6e4f;--accfg:#fff;--soft:#e2f1ea;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0d1620;--panel:#15222f;--ink:#e6eef5;--mute:#93a4b5;--line:#2a3b4c;--acc:#3ecf9b;--accfg:#06241a;--soft:#14352b}}
:root[data-theme="dark"]{--bg:#0d1620;--panel:#15222f;--ink:#e6eef5;--mute:#93a4b5;--line:#2a3b4c;--acc:#3ecf9b;--accfg:#06241a;--soft:#14352b}
*{box-sizing:border-box}html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.6 'Noto Sans KR',system-ui,sans-serif}
header{padding:28px 24px 8px;max-width:1040px;margin:auto}
h1{margin:0;font-size:28px;letter-spacing:-.02em}header p{margin:4px 0 0;color:var(--mute);font-size:14px}
.wrap{max-width:1040px;margin:16px auto 40px;padding:0 24px;display:grid;grid-template-columns:200px 1fr;gap:20px}
nav{display:flex;flex-direction:column;gap:4px}
nav .grp{font-size:12px;color:var(--mute);padding:12px 12px 2px}nav button{text-align:left;background:none;border:0;border-left:3px solid transparent;padding:10px 12px;font:inherit;color:var(--mute);cursor:pointer;border-radius:0 6px 6px 0}
nav button:hover{background:var(--panel)}nav button[aria-selected=true]{border-left-color:var(--acc);color:var(--ink);font-weight:700;background:var(--panel)}
main{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:24px;min-width:0}
h2{margin:0 0 4px;font-size:20px}.desc{margin:0 0 16px;color:var(--mute);font-size:14px}
.drop{border:2px dashed var(--line);border-radius:8px;padding:36px 16px;text-align:center;cursor:pointer;color:var(--mute)}
.drop.over,.drop:hover{border-color:var(--acc);background:var(--soft);color:var(--ink)}
.drop:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:6px}
.list li{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:6px;padding:6px 10px;font-size:14px}
.list .n{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.list .s{color:var(--mute);font-size:12px}
.list button{background:none;border:1px solid var(--line);color:var(--ink);border-radius:4px;cursor:pointer;width:28px;height:28px}
.opts{display:flex;flex-wrap:wrap;gap:16px;margin:16px 0}.opts label{display:grid;gap:4px;font-size:13px;color:var(--mute)}
.opts select,.opts input{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:6px 8px;min-width:140px}
.go{background:var(--acc);color:var(--accfg);border:0;border-radius:6px;padding:12px 24px;font:700 16px inherit;font-family:inherit;cursor:pointer}
.go:disabled{opacity:.4;cursor:not-allowed}
#msg{margin-top:14px;font-size:14px;min-height:22px}#msg.err{color:#c2410c}
.priv{margin-top:24px;font-size:13px;color:var(--mute);border-top:1px solid var(--line);padding-top:12px}
.pv{position:relative;width:100%;max-width:520px;border:1px solid var(--line);touch-action:none;cursor:crosshair}.pv canvas{display:block;width:100%;height:auto}.pv img{position:absolute;transform:translate(-50%,-50%);pointer-events:none;height:auto}
#sd{display:block;width:100%;max-width:400px;background:#fff;border:1px solid var(--line);border-radius:6px;touch-action:none;cursor:crosshair}.sm{margin-top:6px;background:none;border:1px solid var(--line);color:var(--ink);border-radius:6px;padding:4px 12px;font:inherit;font-size:13px;cursor:pointer}
header .hd{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}#lang{font:inherit;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:6px 8px}
#pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px;flex-basis:100%;width:100%}.tb{display:flex;flex-wrap:wrap;gap:6px;flex-basis:100%}.tb .sm{margin:0}.pc{border:2px solid var(--line);border-radius:8px;padding:6px;background:var(--bg);cursor:grab;user-select:none}.pc.s{border-color:var(--acc);background:var(--soft)}.pc.d{opacity:.35}.pc .bx{height:150px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#fff;border-radius:4px;cursor:pointer}.pc img{max-width:100%;max-height:100%;transition:transform .15s}.pc .bt{display:flex;justify-content:space-between;align-items:center;margin-top:4px;font-size:12px}.pc .bt button{background:none;border:1px solid var(--line);color:var(--ink);border-radius:4px;width:26px;height:26px;cursor:pointer;padding:0}
[hidden]{display:none!important}#pb{display:flex;align-items:center;gap:10px;margin-top:12px}#pr{flex:1;accent-color:var(--acc);height:10px}.pwbox{margin-top:12px;padding:12px;border:1px solid var(--acc);border-radius:8px;background:var(--soft)}.pwbox p{margin:0 0 8px;font-size:14px}.pwbox input{font:inherit;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:6px 8px}.pwbox .sm{margin:0}
#mb{display:none}
.cv{position:relative;display:inline-block;max-width:100%;overflow:hidden;line-height:0;touch-action:none;border-radius:4px}.cv img{max-width:100%;max-height:360px;display:block}#cb{position:absolute;box-shadow:0 0 0 9999px rgba(0,0,0,.5);border:2px solid #fff;cursor:move;touch-action:none}.cv{cursor:crosshair}.cbh{position:absolute;width:22px;height:22px;background:var(--acc);border:2px solid #fff;border-radius:50%;touch-action:none}.cbh[data-c=tl]{left:2px;top:2px;cursor:nwse-resize}.cbh[data-c=br]{right:2px;bottom:2px;cursor:nwse-resize}.cbh[data-c=tr]{right:2px;top:2px;cursor:nesw-resize}.cbh[data-c=bl]{left:2px;bottom:2px;cursor:nesw-resize}
.adp{flex-basis:100%;display:flex;align-items:center;justify-content:center;height:260px;background:var(--bg);border-radius:6px;overflow:hidden}.adp img{max-width:240px;max-height:240px;transition:transform .15s}
.mscw{flex-basis:100%;max-width:100%}.mscw canvas{display:block;max-width:100%;height:auto;border:1px solid var(--line);border-radius:6px;touch-action:none;cursor:crosshair}.ctg{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px;flex-basis:100%;width:100%}.ctg div{border:1px solid var(--line);border-radius:8px;padding:8px 10px;background:var(--bg)}.ctg b{display:block;font-size:20px}.ctg span{color:var(--mute);font-size:12px}
#rv{margin-top:14px}#rv textarea{display:block;width:100%;font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:8px 10px}#rv .tb{margin-top:8px}
@media(max-width:720px){.wrap{grid-template-columns:1fr;padding:0 16px}header{padding:20px 16px 0}#mb{display:block;width:100%;text-align:left;background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:10px 12px;font:inherit;font-weight:700;cursor:pointer}nav{display:none;margin-top:6px;background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:6px 0;max-height:60vh;overflow-y:auto}.side.open nav{display:flex}main{padding:16px}}

.brand{font-size:28px;font-weight:700;letter-spacing:-.02em;line-height:1.3}.brand a{color:inherit;text-decoration:none}h1#t{font-size:20px;margin:0 0 4px}.seo,.ft{max-width:1040px;margin:0 auto;padding:0 24px}.seo{margin-bottom:28px}.seo h2{font-size:18px;margin:20px 0 6px}.seo p,.seo li{color:var(--mute);font-size:15px;margin:4px 0}.seo details{border-top:1px solid var(--line);padding:8px 0}.seo summary{cursor:pointer;font-weight:700;font-size:15px}.ft{border-top:1px solid var(--line);padding-top:16px;padding-bottom:36px;color:var(--mute);font-size:14px}.ft a{color:var(--mute);margin-right:14px}.card{display:block;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 16px;color:var(--ink);text-decoration:none}.card:hover{border-color:var(--acc)}.card b{display:block}.card span{color:var(--mute);font-size:13px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px;margin:8px 0 22px}
/* ===== tool menu (all tools at a glance) + page viewer ===== */
.mbar{max-width:1240px;margin:8px auto 0;padding:0 24px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.mmb{display:inline-flex;gap:8px;align-items:center;background:var(--acc);color:var(--accfg);border:0;border-radius:10px;padding:11px 18px;font:700 15px inherit;font-family:inherit;cursor:pointer}
#mms{flex:1;min-width:200px;max-width:460px;font:inherit;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 14px}
.mcur{color:var(--mute);font-size:14px}
.mm{max-width:1240px;margin:8px auto 0;padding:0 24px}
.mm .mcols{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px 20px;box-shadow:0 18px 40px -20px rgba(0,0,0,.35)}
.mm .mcol h3{margin:0 0 6px;font-size:12.5px;letter-spacing:.04em;color:var(--acc);text-transform:uppercase}
.mm .mcol button{display:block;width:100%;text-align:left;background:none;border:0;border-radius:8px;padding:7px 9px;font:inherit;font-size:14.5px;color:var(--ink);cursor:pointer}
.mm .mcol button:hover,.mm .mres button:hover{background:var(--soft)}.mm button[aria-current]{font-weight:700;background:var(--soft)}
.mm .mres{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:8px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;box-shadow:0 18px 40px -20px rgba(0,0,0,.35)}
.mm .mres button{display:grid;gap:2px;text-align:left;background:none;border:0;border-radius:8px;padding:9px 11px;font:inherit;color:var(--ink);cursor:pointer}.mm .mres small{color:var(--mute);font-size:12.5px}
.mnone{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px;margin:0;color:var(--mute)}
.side{display:none}.wrap{grid-template-columns:1fr!important;max-width:1240px}
.pvw{flex-basis:100%}.pvb{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:8px}.pvb .sm{margin:0}.pvb input,.pvb select{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:4px 8px}
.pvc{position:relative;display:block;max-width:100%;overflow:auto;border:1px solid var(--line);border-radius:6px;background:#888;line-height:0}.pvc canvas{display:block;max-width:none}#vov{position:absolute;left:0;top:0;touch-action:none;cursor:crosshair}
@media(max-width:900px){.mm .mcols{grid-template-columns:repeat(2,minmax(0,1fr))}.mm .mres{grid-template-columns:1fr}}
@media(max-width:560px){.mm .mcols{grid-template-columns:1fr}.mbar,.mm{padding:0 16px}}

.rres{display:grid;gap:12px;margin-top:14px}.rcard{border:1px solid var(--line);border-radius:10px;padding:12px;background:var(--bg)}.rh{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.rh .rs{color:var(--mute);font-size:13px}.rh .ra{margin-left:auto;display:flex;gap:6px}.rh .ra .sm{margin:0;text-decoration:none;display:inline-block}
.rp{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px;overflow:auto;align-items:flex-start}.rp canvas,.rp img{max-width:230px;border:1px solid var(--line);background:#fff;border-radius:4px}.rp pre{white-space:pre-wrap;max-height:230px;overflow:auto;font:13px/1.55 inherit;font-family:inherit;width:100%;margin:0;background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:8px 10px}.rp table{border-collapse:collapse;font-size:12.5px;background:var(--panel)}.rp td{border:1px solid var(--line);padding:3px 8px;white-space:nowrap}.rp .rl{flex-basis:100%;font-size:13px;color:var(--mute)}
/* menu: columns flow so short groups do not leave empty gaps */
.mm .mcols{display:block!important;column-count:4;column-gap:22px}
.mm .mcol{break-inside:avoid;-webkit-column-break-inside:avoid;margin:0 0 18px;display:block}
@media(max-width:900px){.mm .mcols{column-count:2}}
@media(max-width:560px){.mm .mcols{column-count:1}}

/* most used tools row */
.qk{flex-basis:100%;margin-top:18px}.qk[hidden]{display:none}
.qkt{font-size:13px;font-weight:700;color:var(--mute);margin-bottom:8px}
.qkc{display:flex;flex-wrap:wrap;gap:8px}
.qkc button{background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:8px 16px;font:inherit;font-weight:650;cursor:pointer;color:var(--ink);transition:all .15s}
.qkc button:hover{border-color:var(--acc);color:var(--acc);background:var(--soft);transform:translateY(-1px)}