:root{
  --navy:#0b2545; --navy2:#13315c; --teal:#0f8b8d; --mint:#5ce1c6;
  --bg:#f2f5fa; --card:#fff; --line:#e1e8f1; --text:#1d2a3a; --sub:#6b7a90;
  --mine:#e3f6f2; --hl:#fff1a0; --danger:#e5484d; --warn:#f59e0b;
  --grad:linear-gradient(120deg,var(--navy) 0%,var(--navy2) 55%,var(--teal) 100%);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:"Pretendard","Malgun Gothic","Apple SD Gothic Neo",sans-serif;background:var(--bg);color:var(--text);font-size:14px}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.label{color:var(--mint);font-size:11px;font-weight:700;letter-spacing:.18em}
.hidden{display:none!important}
mark{background:var(--hl);color:inherit;border-radius:3px;padding:0 1px}

/* buttons */
.btn{text-decoration:none;border:none;border-radius:999px;padding:9px 16px;font-weight:600;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.btn:hover{transform:translateY(-1px);box-shadow:0 6px 14px rgba(11,37,69,.18)}
.btn:active{transform:none}
.btn.primary{background:linear-gradient(120deg,var(--navy2),var(--teal));color:#fff}
.btn.ghost{background:#eef3f9;color:var(--navy2)}
.btn.white{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.25)}
.btn.white:hover{background:rgba(255,255,255,.24)}
.btn.mint{background:var(--mint);color:var(--navy)}
.btn.kakao{background:#fee500;color:#191919}
.btn.danger{background:#fdecec;color:var(--danger)}
.btn.sm{padding:5px 12px;font-size:12px}
.btn.icon{padding:7px 10px}

input.f,select.f,textarea.f{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:8px 12px;outline:none;background:#fff;transition:border .15s}
input.f:focus,select.f:focus,textarea.f:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(15,139,141,.1)}

/* login */
#login{min-height:100%;display:flex;align-items:center;justify-content:center;background:var(--grad);padding:20px}
.login-card{background:#fff;border-radius:22px;width:100%;max-width:400px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.3)}
.login-card .lh{background:var(--grad);color:#fff;padding:26px 28px}
.login-card .lh h2{margin:6px 0 0;font-size:22px}
.login-card .lb{padding:22px 28px 28px;display:flex;flex-direction:column;gap:10px}
.tabs{display:flex;gap:6px;margin-bottom:6px}
.tabs button{flex:1;border:none;background:#eef3f9;color:var(--sub);border-radius:999px;padding:8px;cursor:pointer;font-weight:600}
.tabs button.on{background:var(--navy2);color:#fff}
.err{color:var(--danger);font-size:13px;min-height:18px}

/* layout */
#app{height:100%;display:flex;flex-direction:column}
header.top{background:var(--grad);color:#fff;padding:10px 18px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.brand h1{margin:2px 0 0;font-size:17px}
.gsearch{flex:1;min-width:260px;position:relative;max-width:620px}
.gsearch input{width:100%;border:none;border-radius:999px;padding:11px 18px 11px 42px;font-size:15px;outline:none;box-shadow:0 4px 14px rgba(0,0,0,.15)}
.gsearch .ic{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--sub)}
#suggest{position:absolute;left:0;right:0;top:calc(100% + 6px);background:#fff;color:var(--text);border-radius:14px;box-shadow:0 14px 30px rgba(11,37,69,.22);z-index:30;overflow:hidden}
#suggest div{padding:9px 16px;cursor:pointer;display:flex;justify-content:space-between}
#suggest div small{color:var(--sub)}
#suggest div.on,#suggest div:hover{background:#eefaf7}
.top-actions{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.me{font-size:12.5px;color:#d5e2f2;margin-left:4px}

main{flex:1;display:grid;grid-template-columns:220px 1fr 380px;min-height:0}
aside.rooms{background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
.side-h{padding:14px 16px 8px;display:flex;justify-content:space-between;align-items:center}
.side-h b{font-size:13px;color:var(--sub)}
#roomList{overflow:auto;flex:1}
.room{padding:11px 16px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;border-left:3px solid transparent;transition:background .15s}
.room:hover{background:#f5f8fc}
.room.on{background:#eefaf7;border-left-color:var(--teal);font-weight:700}
.badge{background:var(--danger);color:#fff;border-radius:999px;font-size:11px;padding:1px 7px;font-weight:700}
.online{padding:12px 16px;border-top:1px solid var(--line);font-size:12.5px;color:var(--sub);max-height:170px;overflow:auto}
.online .u{display:flex;align-items:center;gap:6px;padding:3px 0;color:var(--text)}
.dot{width:8px;height:8px;border-radius:50%;background:#22c55e;display:inline-block}

section.chat{display:flex;flex-direction:column;min-height:0;position:relative}
.chat-h{background:#fff;border-bottom:1px solid var(--line);padding:12px 18px;display:flex;justify-content:space-between;align-items:center;gap:10px}
.chat-h h2{margin:0;font-size:16px}
#typing{font-size:12px;color:var(--teal);min-height:16px}
#msgs{flex:1;overflow:auto;padding:16px 18px}
.daysep{text-align:center;margin:14px 0;font-size:12px;color:var(--sub)}
.daysep span{background:#e6ecf4;border-radius:999px;padding:3px 12px}
.msg{display:flex;flex-direction:column;align-items:flex-start;margin-bottom:12px;animation:pop .2s ease}
.msg.mine{align-items:flex-end}
@keyframes pop{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}
.msg .who{font-size:12px;color:var(--sub);margin:0 6px 3px}
.msg .who b{color:var(--text)}
.bubble{background:#fff;border:1px solid var(--line);border-radius:4px 16px 16px 16px;padding:10px 14px;max-width:min(560px,85%);white-space:pre-wrap;word-break:break-word;line-height:1.55;position:relative}
.msg.mine .bubble{background:var(--mine);border-color:#c9ece4;border-radius:16px 4px 16px 16px}
.msg.flash .bubble{animation:flash 1.6s ease}
@keyframes flash{0%,60%{box-shadow:0 0 0 4px var(--mint)}100%{box-shadow:none}}
.chips{display:flex;gap:4px;flex-wrap:wrap;margin-top:6px}
.chip{font-size:11.5px;background:#eef3f9;color:var(--navy2);border-radius:999px;padding:2px 9px}
.chip.c{background:#e9fbf6;color:#0b7a6b}
.chip.a{background:#fff4e0;color:#a35d00}
.chip.warn{background:#fdecec;color:var(--danger);font-weight:700}
.msg .acts{display:none;gap:4px;margin:3px 6px 0}
.msg:hover .acts{display:flex}
.msg .acts button{border:none;background:none;cursor:pointer;color:var(--sub);font-size:12px;padding:2px 5px;border-radius:6px}
.msg .acts button:hover{background:#e6ecf4;color:var(--navy)}
.pin{color:var(--warn)}
.fcard{display:flex;gap:10px;align-items:center;min-width:260px}
.fcard .fi{width:42px;height:42px;border-radius:10px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex-shrink:0}
.fcard .fn{font-weight:600;word-break:break-all}
.fcard .fs{font-size:12px;color:var(--sub)}
.qcard{border-radius:14px;overflow:hidden;border:1px solid var(--line);min-width:280px;background:#fff;white-space:normal}
.qcard .qh{background:var(--grad);color:#fff;padding:9px 14px}
.qcard .qh .t{font-weight:700}
.qcard .qb{padding:10px 14px;font-size:13px}
.qcard .qb .tot{font-size:17px;font-weight:800;color:var(--navy2)}
.qcard .qf{padding:0 14px 12px;display:flex;gap:5px;flex-wrap:wrap}

.composer{background:#fff;border-top:1px solid var(--line);padding:10px 14px}
.composer .meta{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:6px;margin-bottom:6px}
.composer .row{display:flex;gap:8px;align-items:flex-end}
.composer textarea{flex:1;resize:none;min-height:44px;max-height:160px}
#dropzone{position:absolute;inset:0;background:rgba(15,139,141,.16);border:3px dashed var(--teal);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;color:var(--navy);z-index:10;pointer-events:none}
.pending{font-size:12.5px;color:var(--navy2);margin-bottom:6px}

aside.panel{background:#fff;border-left:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
.panel-h{background:var(--grad);color:#fff;padding:12px 16px}
.panel-h h3{margin:3px 0 0;font-size:15px}
.filters{padding:10px 14px;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:6px}
.pills{display:flex;gap:4px;flex-wrap:wrap}
.pills button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:4px 11px;cursor:pointer;font-size:12px;color:var(--sub)}
.pills button.on{background:var(--navy2);border-color:var(--navy2);color:#fff}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.frow input,.frow select{padding:6px 10px;font-size:12.5px}
#results{flex:1;overflow:auto;padding:10px 12px}
.res{border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-bottom:8px;cursor:pointer;transition:border .15s,box-shadow .15s;animation:pop .2s}
.res:hover{border-color:var(--teal);box-shadow:0 4px 12px rgba(15,139,141,.12)}
.res .rt{font-weight:700;display:flex;gap:6px;align-items:flex-start;word-break:break-all}
.res .rs{font-size:12.5px;color:#46566c;margin:4px 0;line-height:1.5}
.res .rm{font-size:11.5px;color:var(--sub);display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.stat{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:12px}
.stat div{border-radius:12px;background:#f4f8fc;padding:12px}
.stat b{display:block;font-size:20px;color:var(--navy2)}
.stat small{color:var(--sub)}
.hint{padding:6px 16px;color:var(--sub);font-size:12.5px;line-height:1.7}

/* modals */
.modal-bg{position:fixed;inset:0;background:rgba(11,37,69,.5);display:flex;align-items:center;justify-content:center;z-index:50;padding:16px}
.modal{background:#fff;border-radius:18px;width:100%;max-width:560px;max-height:94vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.3);animation:pop .2s}
.modal.xl{max-width:1100px}
.modal.lg{max-width:820px}
.modal .mh{background:var(--grad);color:#fff;padding:14px 20px;display:flex;justify-content:space-between;align-items:center}
.modal .mh h3{margin:3px 0 0;font-size:17px}
.modal .mh .x{background:none;border:none;color:#fff;font-size:22px;cursor:pointer}
.modal .mb{padding:16px 20px;overflow:auto}
.modal .mf{padding:12px 20px;border-top:1px solid var(--line);display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end;align-items:center}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px 10px}
.grid label{font-size:12px;color:var(--sub);font-weight:600;display:flex;flex-direction:column;gap:3px}
.grid .s2{grid-column:span 2}
.grid .s4{grid-column:span 4}
table.items{width:100%;border-collapse:collapse;margin-top:12px;font-size:13px}
table.items th{background:var(--navy2);color:#fff;padding:7px 6px;font-weight:600}
table.items td{border-bottom:1px solid var(--line);padding:4px 3px}
table.items input{width:100%;border:1px solid transparent;border-radius:6px;padding:6px 7px;outline:none;background:transparent}
table.items input:focus{border-color:var(--teal);background:#fff}
table.items td.num{text-align:right;padding-right:8px;white-space:nowrap}
table.items tr:hover td{background:#f8fbfd}
.totals{display:flex;justify-content:flex-end;gap:20px;margin-top:10px;padding:12px 16px;background:#f2faf8;border-radius:12px;flex-wrap:wrap;align-items:baseline}
.totals b{font-size:15px}
.totals .g{font-size:20px;color:var(--navy2)}
.totals .kr{font-size:12px;color:var(--sub);width:100%;text-align:right}
.dupbox{background:#fff6e6;border:1px solid #ffd79a;color:#8a5200;border-radius:12px;padding:10px 14px;margin-top:10px;font-size:13px}
.autosave{font-size:12px;color:var(--sub);margin-right:auto}
.list-table{width:100%;border-collapse:collapse;font-size:13px}
.list-table th{text-align:left;color:var(--sub);font-weight:600;border-bottom:2px solid var(--line);padding:8px 6px;position:sticky;top:0;background:#fff}
.list-table td{border-bottom:1px solid var(--line);padding:8px 6px}
.list-table tr:hover td{background:#f5f9fc;cursor:pointer}
.status{border-radius:999px;padding:2px 9px;font-size:11.5px;background:#eef3f9}
.status.발송{background:#e0f0ff;color:#1060b0}.status.수주{background:#e3f8ea;color:#167a3a}.status.실주{background:#fdecec;color:var(--danger)}

/* calculator */
#calc{position:fixed;right:24px;bottom:24px;width:290px;background:#fff;border-radius:18px;box-shadow:0 20px 50px rgba(11,37,69,.35);z-index:45;overflow:hidden;user-select:none}
#calc .ch{background:var(--grad);color:#fff;padding:9px 14px;display:flex;justify-content:space-between;align-items:center;cursor:move}
#calc .ch button{background:none;border:none;color:#fff;font-size:18px;cursor:pointer}
#calc .disp{padding:10px 14px;text-align:right;background:#f4f8fc}
#calc .expr{font-size:12px;color:var(--sub);min-height:16px;word-break:break-all}
#calc .val{font-size:26px;font-weight:700;color:var(--navy);word-break:break-all}
#calc .kr{font-size:11px;color:var(--teal);min-height:14px}
#calc .keys{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;padding:10px}
#calc .keys button{border:none;border-radius:12px;padding:12px 0;font-size:16px;font-weight:600;cursor:pointer;background:#eef3f9;color:var(--navy)}
#calc .keys button:hover{background:#dfe8f3}
#calc .keys button.op{background:#e3f6f2;color:var(--teal)}
#calc .keys button.eq{background:linear-gradient(120deg,var(--navy2),var(--teal));color:#fff}
#calc .keys button.vat{font-size:12px;background:#fff4e0;color:#a35d00}
#calc .hist{max-height:90px;overflow:auto;font-size:12px;color:var(--sub);padding:0 14px 10px}
#calc .hist div{cursor:pointer;padding:2px 0;text-align:right}
#calc .hist div:hover{color:var(--navy)}

.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);background:var(--navy);color:#fff;padding:10px 22px;border-radius:999px;opacity:0;transition:.3s;z-index:99;pointer-events:none;max-width:90vw;text-align:center}
.toast.show{opacity:1}

@media (max-width:1100px){main{grid-template-columns:190px 1fr}aside.panel{position:fixed;right:0;top:0;bottom:0;width:min(400px,100%);z-index:40;box-shadow:-10px 0 30px rgba(0,0,0,.2);transform:translateX(100%);transition:transform .25s}aside.panel.open{transform:none}}
@media (max-width:720px){main{grid-template-columns:1fr}aside.rooms{display:none}aside.rooms.open{display:flex;position:fixed;inset:0 30% 0 0;z-index:41}.grid{grid-template-columns:1fr 1fr}.composer .meta{grid-template-columns:1fr 1fr}}