:root{
  --paper:#FFFFFF; --canvas:#F4F5F7; --ink:#1C1E22; --muted:#6B7079; --line:#E2E4E8;
  --brand:#E4572E; --brand-ink:#B8401C; --brand-soft:#FDEDE7; --ok:#2F7A55; --ok-soft:#E6F2EC;
  --warn:#9A5A0B; --warn-soft:#FBF1E1; --err:#B42318; --err-soft:#FDECEA;
  --r:10px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--canvas);color:var(--ink);
  font:15px/1.6 "Pretendard Variable",Pretendard,-apple-system,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  font-feature-settings:"tnum"}
a{color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

/* 상단 */
.top{background:var(--paper);border-bottom:1px solid var(--line)}
.top-in{max-width:1080px;margin:0 auto;padding:0 20px;height:56px;display:flex;align-items:center;gap:28px}
.brand{font-weight:800;letter-spacing:-.02em;text-decoration:none;display:flex;align-items:center;gap:8px}
.brand img{display:block;border-radius:5px}
.brand b{color:var(--brand)}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{white-space:nowrap;text-decoration:none;color:var(--muted);padding:6px 10px;border-radius:8px;font-size:14px}
.nav a.on,.nav a:hover{color:var(--ink);background:var(--canvas)}
main{max-width:1080px;margin:0 auto;padding:28px 20px 80px}

/* 메시지 */
.flash{padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:14px}
.flash.ok{background:var(--ok-soft);color:var(--ok)}
.flash.error{background:var(--err-soft);color:var(--err)}

/* 월 헤더 */
.month{display:flex;align-items:flex-end;gap:18px;flex-wrap:wrap;margin-bottom:22px}
.month h1{margin:0;font-size:34px;line-height:1.1;letter-spacing:-.03em;font-weight:800}
.month .arrow{text-decoration:none;color:var(--muted);font-size:22px;padding:0 4px;line-height:1.3}
.month .arrow:hover{color:var(--ink)}
.month .due{color:var(--muted);font-size:14px;padding-bottom:3px}
.month .due strong{color:var(--brand-ink);font-weight:700}
.month .count{margin-left:auto;font-size:14px;color:var(--muted);padding-bottom:3px}

/* 진행 보드 */
.board{background:var(--paper);border:1px solid var(--line);border-radius:var(--r)}
.board-head,.row{display:grid;grid-template-columns:minmax(200px,1.3fr) minmax(320px,2fr) minmax(170px,1fr);gap:20px;align-items:center;padding:0 22px}
.board-head{height:40px;border-bottom:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.row{padding-top:18px;padding-bottom:18px;border-bottom:1px solid var(--line);text-decoration:none}
.row:last-child{border-bottom:0}
.row:hover{background:#FAFAFB}
.row .name{font-weight:700;font-size:16px;letter-spacing:-.01em}
.row .sub{font-size:13px;color:var(--muted);margin-top:2px}
.track{position:relative;display:grid;grid-template-columns:repeat(4,1fr)}
.track::before{content:"";position:absolute;left:12.5%;right:12.5%;top:9px;height:2px;background:var(--line)}
.track .fill{position:absolute;left:12.5%;top:9px;height:2px;background:var(--brand)}
.step{position:relative;text-align:center;font-size:12.5px;color:var(--muted)}
.dot{width:20px;height:20px;border-radius:50%;margin:0 auto 6px;background:var(--paper);border:2px solid var(--line);position:relative;z-index:1}
.step.done .dot{background:var(--brand);border-color:var(--brand)}
.step.done .dot::after{content:"";position:absolute;left:5px;top:2px;width:5px;height:9px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}
.step.now .dot{border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft)}
.step.now{color:var(--brand-ink);font-weight:700}
.step.done{color:var(--ink)}
.row .act{text-align:right;font-size:14px}
.row .act .big{font-weight:700;font-size:15px}
.row .act .todo{color:var(--brand-ink);font-weight:700}
.row .act .ok{color:var(--ok);font-weight:700}

/* 버튼·입력 */
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--paper);color:var(--ink);
  padding:8px 14px;border-radius:8px;font:inherit;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{border-color:#C9CCD2}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-ink);border-color:var(--brand-ink)}
.btn.ghost{border-color:transparent;color:var(--muted);padding-left:6px;padding-right:6px}
.btn.sm{padding:5px 10px;font-size:13px}
input[type=text],input[type=password],input[type=email],input[type=date],textarea{
  font:inherit;font-size:14px;border:1px solid var(--line);border-radius:8px;padding:8px 10px;width:100%;background:var(--paper);color:var(--ink)}
textarea{resize:vertical;line-height:1.55}
label.f{display:block;font-size:13px;color:var(--muted);margin:12px 0 4px}

/* 상세 */
.back{font-size:14px;color:var(--muted);text-decoration:none}
.head{margin:8px 0 24px}
.head h1{margin:0;font-size:28px;letter-spacing:-.03em;font-weight:800}
.head .sub{color:var(--muted);font-size:14px;margin-top:4px}
.detail{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,440px);gap:24px;align-items:start}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:20px 22px;margin-bottom:14px}
.card.dim{opacity:.55}
.card h2{margin:0 0 12px;font-size:16px;display:flex;align-items:center;gap:10px}
.card h2 .n{width:24px;height:24px;border-radius:50%;display:inline-grid;place-items:center;font-size:12.5px;background:var(--canvas);color:var(--muted);flex:none}
.card.done h2 .n{background:var(--brand);color:#fff}
.card.now{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.card.now h2 .n{background:var(--brand-soft);color:var(--brand-ink)}
.card h2 .state{margin-left:auto;font-size:12.5px;font-weight:600;color:var(--muted)}
.card.done h2 .state{color:var(--ok)}
.hint{font-size:13.5px;color:var(--muted);margin:0 0 12px}
.slot{display:flex;align-items:center;gap:12px;border:1px dashed #CDD1D7;border-radius:8px;padding:12px 14px;margin-bottom:8px}
.slot.has{border-style:solid;background:#FAFAFB}
.slot .who{font-weight:700;min-width:110px}
.slot .fn{font-size:13px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.slot input[type=file]{display:none}
table.t{width:100%;border-collapse:collapse;font-size:14px}
table.t th,table.t td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:right}
table.t th:first-child,table.t td:first-child{text-align:left}
table.t th{font-size:12.5px;color:var(--muted);font-weight:600}
table.t tr.base td{font-weight:700}
.warn{background:var(--warn-soft);color:var(--warn);border-radius:8px;padding:10px 14px;font-size:13.5px;margin:12px 0}
.warn ul{margin:4px 0 0;padding-left:18px}
.btns{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.copyrow{display:flex;gap:8px;align-items:center;margin-bottom:8px}
.copyrow .k{font-size:13px;color:var(--muted);width:64px;flex:none}
.copyrow .v{flex:1;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border:1px solid var(--line);border-radius:8px;padding:7px 10px;background:#FAFAFB}
.preview{position:sticky;top:20px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.preview .bar{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.preview iframe{width:100%;height:620px;border:0;display:block;background:#EEE}
.preview .empty{height:320px;display:grid;place-items:center;color:var(--muted);font-size:14px;padding:20px;text-align:center}
.inline{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.inline input[type=date]{width:auto}
details.more{margin-top:10px;font-size:13.5px}
details.more summary{cursor:pointer;color:var(--muted)}

/* 목록·설정 */
.panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:22px;margin-bottom:16px}
.panel h2{margin:0 0 4px;font-size:17px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.tag{display:inline-block;font-size:12px;font-weight:700;padding:2px 8px;border-radius:99px;background:var(--canvas);color:var(--muted)}
.tag.ok{background:var(--ok-soft);color:var(--ok)}
.tag.brand{background:var(--brand-soft);color:var(--brand-ink)}
.scroll{overflow-x:auto}

/* 로그인 */
.login{min-height:100vh;display:grid;place-items:center;padding:20px}
.login form{width:100%;max-width:360px;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:32px 28px}
.login h1{margin:0 0 4px;font-size:22px;letter-spacing:-.02em}
.login p{margin:0 0 18px;color:var(--muted);font-size:14px}
.login .btn{width:100%;justify-content:center;margin-top:18px;padding:11px}

@media (max-width:860px){
  .board-head{display:none}
  .row{grid-template-columns:1fr;gap:12px}
  .row .act{text-align:left}
  .detail{grid-template-columns:1fr}
  .preview{position:static}
  .preview iframe{height:460px}
  .grid2{grid-template-columns:1fr}
  .month h1{font-size:28px}
  .month .count{margin-left:0;width:100%}
  .top-in{gap:12px}
  .brand .bt{display:none}
  .nav a{padding:6px 6px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}