:root{
  --bg:#f5f4f0; --surface:#fbfbf9; --panel:#ffffff; --panel-soft:#f7f6f2;
  --ink:#1c1c1a; --ink-hover:#3a3935; --ink-2:#55534d; --sub:#7a776f; --muted:#8a877f;
  --line:#e3e1db; --line-2:#dcdad3; --line-3:#efeee9; --hover:#efeee9; --soft:#f3f2ee; --track:#ebe9e3;
  --accent:#3355d6; /* 계획표 인디고 */
  --accent-soft:#e8edff;
  --danger:#d63a31;
  /* 차트 */
  --c-bg:#ffffff; --c-head:#faf9f6; --c-grid:#f0eee9; --c-grid-2:#dedbd3; --c-wkend:#f5f3ee; --c-hol:#fdeceb; --c-grp:#f8f7f3;
  --c-text:#1c1c1a; --c-sub:#8a877f; --c-sun:#d63a31; --c-sat:#3355d6; --c-today:#e8443a; --c-dep:#8a877f;
  --font:"IBM Plex Sans KR",sans-serif; --mono:"JetBrains Mono",monospace;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;word-break:keep-all}
button,select,input,textarea{font:inherit;color:inherit}
.mono-label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted)}
.app{min-height:100vh;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 28px;border-bottom:1px solid var(--line);background:var(--surface);flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:14px;min-width:0;flex-wrap:wrap}
.brand-title{font-size:17px;font-weight:700;letter-spacing:-.01em;margin:0}
.actions{display:flex;gap:8px}
.btn{height:36px;padding:0 14px;background:transparent;border:1px solid var(--line-2);border-radius:999px;font-size:13px;cursor:pointer;white-space:nowrap}
.btn:hover{background:var(--hover)}
.btn--solid{background:var(--ink);color:#fff;border:none;font-weight:500}
.btn--solid:hover{background:var(--ink-hover)}
.btn--sm{height:30px;font-size:12px;padding:0 12px}
.btn--danger{color:var(--danger);border-color:color-mix(in srgb,var(--danger) 35%,transparent)}
.btn--danger:hover{background:color-mix(in srgb,var(--danger) 10%,transparent)}
.text-input{height:38px;padding:0 10px;background:var(--surface);border:1px solid var(--line-2);border-radius:10px;font:inherit;font-size:14px;color:var(--ink);min-width:0;width:100%}
.text-input:focus,.text-area:focus{outline:none;border-color:var(--accent)}
.text-area{width:100%;padding:10px;border:1px solid var(--line-2);border-radius:10px;background:var(--surface);font-size:13px;resize:vertical;font-family:var(--mono)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.wrap{width:100%;max-width:1400px;margin:0 auto;padding:22px 28px 56px;display:flex;flex-direction:column;gap:14px;min-width:0}

/* ---------- 툴바 ---------- */
.toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.proj{flex:0 1 320px;min-width:0}
.proj-input{width:100%;height:42px;border:1px solid transparent;border-radius:10px;background:transparent;font-size:21px;font-weight:700;letter-spacing:-.02em;padding:0 8px;margin-left:-8px}
.proj-input:hover{border-color:var(--line-2)}
.proj-input:focus{outline:none;border-color:var(--accent);background:var(--panel)}
.proj-meta{font-size:12.5px;color:var(--sub);font-family:var(--mono)}
.tb-right{display:flex;align-items:center;gap:8px;margin-left:auto;flex-wrap:wrap}
.seg{display:inline-flex;background:var(--track);border-radius:999px;padding:3px}
.seg label{position:relative}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg span{display:block;height:30px;line-height:30px;padding:0 15px;border-radius:999px;font-size:13px;cursor:pointer;color:var(--ink-2)}
.seg input:checked + span{background:var(--panel);color:var(--ink);font-weight:700;box-shadow:0 1px 3px rgba(0,0,0,.12)}
.seg input:focus-visible + span{outline:2px solid var(--accent)}
.opts{display:flex;align-items:center;gap:6px 16px;flex-wrap:wrap;font-size:13px;color:var(--ink-2)}
.chk{display:inline-flex;align-items:center;gap:6px;cursor:pointer}
.chk input{accent-color:var(--accent);width:16px;height:16px;margin:0}
.opts-hint{margin-left:auto;font-size:12px;color:var(--muted)}

/* ---------- 차트 ---------- */
.gantt{display:grid;grid-template-columns:250px minmax(0,1fr);background:var(--c-bg);border:1px solid var(--line);border-radius:18px;overflow:hidden;min-width:0;position:relative}
.g-side{border-right:1px solid var(--c-grid-2);background:var(--c-bg);min-width:0;position:relative;z-index:1}
.g-scroll{overflow-x:auto;overflow-y:hidden;min-width:0;-webkit-overflow-scrolling:touch;scrollbar-width:thin}
.g-scroll:focus-visible{outline-offset:-3px}
.g-canvas svg{display:block}
.side-head{height:58px;display:flex;align-items:flex-end;justify-content:space-between;padding:0 12px 9px;border-bottom:1px solid var(--c-grid-2);background:var(--c-head);font-size:11px;color:var(--c-sub);font-family:var(--mono);letter-spacing:.08em}
.s-row{height:36px;display:flex;align-items:center;gap:8px;padding:0 6px 0 12px;border-bottom:1px solid var(--c-grid);min-width:0}
.s-row--grp{background:var(--c-grp)}
.s-row button{border:none;background:transparent;cursor:pointer;padding:0;text-align:left}
.s-caret{width:20px;height:20px;border-radius:6px;flex:none;color:var(--sub);font-size:10px;display:grid;place-items:center;transition:transform .15s}
.s-caret:hover{background:var(--hover)}
.s-caret[aria-expanded="false"]{transform:rotate(-90deg)}
.s-grp-name{font-weight:700;font-size:13px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.s-count{font-size:11px;color:var(--muted);font-family:var(--mono)}
.s-task{flex:1;min-width:0;display:flex;align-items:center;gap:8px;height:30px;border-radius:8px;padding:0 6px !important}
.s-task:hover{background:var(--hover)}
.s-indent{padding-left:30px}
.s-dot{width:10px;height:10px;border-radius:3px;flex:none}
.s-dot--ms{transform:rotate(45deg) scale(.85);border-radius:1px}
.s-name{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}
.s-date{font-size:11px;color:var(--muted);font-family:var(--mono);flex:none}
.empty-side{padding:22px 14px;font-size:13px;color:var(--sub);line-height:1.6}

/* SVG 클래스 (화면) */
.gc-bg{fill:var(--c-bg)}
.gc-head{fill:var(--c-head)}
.gc-wk{fill:var(--c-wkend)}
.gc-hol{fill:var(--c-hol)}
.gc-grp{fill:var(--c-grp)}
.gc-grid{stroke:var(--c-grid);stroke-width:1}
.gc-grid2{stroke:var(--c-grid-2);stroke-width:1}
.gc-t{fill:var(--c-text);font-family:var(--font);font-size:12px}
.gc-ts{fill:var(--c-sub);font-family:var(--font);font-size:10px}
.gc-tb{fill:var(--c-text);font-family:var(--font);font-size:12px;font-weight:700}
.gc-sun{fill:var(--c-sun)}
.gc-sat{fill:var(--c-sat)}
.gc-today{stroke:var(--c-today);stroke-width:2}
.gc-today-tag{fill:var(--c-today)}
.gc-today-tx{fill:#fff;font-family:var(--font);font-size:10px;font-weight:700}
.gc-lbl{fill:var(--c-text);font-family:var(--font);font-size:12px;paint-order:stroke;stroke:var(--c-bg);stroke-width:4px;stroke-linejoin:round}
.gc-lbl-p{fill:var(--c-sub)}
.gc-gbar{fill:var(--c-text)}
.gc-dep{fill:none;stroke:var(--c-dep);stroke-width:1.4}
.gc-dep-bad{fill:none;stroke:var(--c-today);stroke-width:1.6;stroke-dasharray:4 3}
.gc-arrow{fill:var(--c-dep)}
.gc-arrow-bad{fill:var(--c-today)}
.gc-bar{cursor:pointer}
.can-drag .gc-bar{cursor:grab}
.can-drag .gc-h{cursor:ew-resize}
.gc-h{fill:transparent}
.is-dragging,.is-dragging *{cursor:grabbing !important;user-select:none}
.gc-drag-tip{fill:var(--ink);}
.gc-drag-tx{fill:var(--bg);font-family:var(--mono);font-size:11px}

/* ---------- 아래 패널 ---------- */
.below{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px;margin-top:6px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:20px 22px;min-width:0}
.panel-title{margin:0;font-size:16px}
.panel-note{margin:4px 0 14px;font-size:12.5px;color:var(--sub);line-height:1.55}
.hol-add{display:grid;grid-template-columns:150px minmax(0,1fr) auto;gap:8px;align-items:center}
.bulk{margin-top:10px;font-size:13px}
.bulk summary{cursor:pointer;color:var(--ink-2)}
.bulk textarea{margin:8px 0}
.hol-list{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.hol-list li{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 4px 0 12px;border-radius:999px;background:var(--c-hol);font-size:12.5px}
.hol-list b{font-family:var(--mono);font-weight:500;font-size:12px}
.hol-list button{width:24px;height:24px;border:none;border-radius:50%;background:transparent;cursor:pointer;color:var(--sub)}
.hol-list button:hover{background:rgba(0,0,0,.08)}
.hol-empty{font-size:12.5px;color:var(--muted)}
.exp-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.exp{display:flex;flex-direction:column;gap:2px;align-items:flex-start;text-align:left;padding:12px 14px;border:1px solid var(--line-2);border-radius:14px;background:var(--surface);cursor:pointer;min-width:0}
.exp:hover{border-color:var(--accent);background:var(--accent-soft)}
.exp b{font-size:13.5px}
.exp span{font-size:12px;color:var(--sub)}
#csvFile:focus-visible + .exp,.exp:focus-within{outline:2px solid var(--accent)}
.split{margin-top:12px;font-size:13px;color:var(--ink-2)}
.split small{color:var(--muted)}
.danger{display:flex;gap:8px;margin-top:12px;justify-content:flex-end}

/* ---------- 편집 시트 ---------- */
.modal{position:fixed;inset:0;background:rgba(20,19,17,.38);z-index:60;display:flex;justify-content:flex-end}
.sheet{width:min(440px,100%);height:100%;background:var(--panel);display:flex;flex-direction:column;box-shadow:-20px 0 50px rgba(0,0,0,.18);animation:slide .22s ease}
@keyframes slide{from{transform:translateX(40px);opacity:0}}
.sheet-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px 10px}
.sheet-head h2{margin:0;font-size:17px}
.x{width:36px;height:36px;border-radius:50%;border:none;background:transparent;font-size:22px;cursor:pointer;color:var(--sub)}
.x:hover{background:var(--hover)}
.sheet-body{flex:1;overflow-y:auto;padding:6px 20px 20px;display:flex;flex-direction:column;gap:14px}
.f{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--sub);min-width:0;border:none;margin:0;padding:0}
.f-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) 84px;gap:8px}
.unit{display:flex;align-items:center;gap:4px;height:38px;border:1px solid var(--line-2);border-radius:10px;background:var(--surface);padding:0 8px;color:var(--sub)}
.unit:focus-within{border-color:var(--accent)}
.unit input{width:100%;min-width:0;border:none;background:transparent;text-align:right;font-family:var(--mono);font-size:14px;outline:none;color:var(--ink)}
.ed-info{margin:-6px 0 0;font-size:12px;color:var(--muted)}
.f-label-row{display:flex;justify-content:space-between;align-items:center}
.f input[type=range]{width:100%;accent-color:var(--accent)}
.tb-num-wrap{color:var(--sub)}
.swatches{display:flex;flex-wrap:wrap;gap:8px}
.sw{width:30px;height:30px;border-radius:50%;border:none;cursor:pointer;box-shadow:inset 0 0 0 1px rgba(0,0,0,.1)}
.sw[aria-checked="true"]{box-shadow:0 0 0 2px var(--panel),0 0 0 4px var(--ink)}
.deps legend{padding:0;margin-bottom:6px}
.deps small{color:var(--muted)}
.dep-list{display:flex;flex-direction:column;gap:2px;max-height:200px;overflow-y:auto;border:1px solid var(--line-3);border-radius:12px;padding:6px}
.dep-list label{display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:8px;font-size:13px;color:var(--ink);cursor:pointer}
.dep-list label:hover{background:var(--hover)}
.dep-list label.is-off{color:var(--muted);cursor:not-allowed}
.dep-list input{accent-color:var(--accent)}
.dep-list .dl-date{margin-left:auto;font-family:var(--mono);font-size:11px;color:var(--muted)}
.dep-none{font-size:12.5px;color:var(--muted);padding:6px 8px}
.warn{margin:6px 0 0;padding:10px 12px;border-radius:10px;background:color-mix(in srgb,var(--danger) 9%,transparent);color:var(--danger);font-size:12.5px;line-height:1.5;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.sheet-foot{display:flex;gap:6px;padding:14px 20px;border-top:1px solid var(--line);flex-wrap:wrap}
.sheet-foot .btn--solid{margin-left:auto}

.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:var(--ink);color:#fff;padding:10px 18px;border-radius:999px;font-size:13px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:80}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

/* ---------- 인쇄 ---------- */
#printRoot{display:none}
@media print{
  html,body{background:#fff !important;margin:0 !important;padding:0 !important}
  body > *:not(#printRoot){display:none !important}
  #printRoot{display:block !important}
  #printRoot .pp{width:297mm;height:209mm;padding:10mm;box-sizing:border-box;overflow:hidden;break-after:page;page-break-after:always}
  #printRoot .pp:last-child{break-after:auto;page-break-after:auto}
  #printRoot svg{width:100%;height:100%;display:block}
}

@media (max-width:900px){
  .below{grid-template-columns:minmax(0,1fr)}
  .opts-hint{margin-left:0;width:100%}
}
@media (max-width:640px){
  .topbar{padding:14px 16px}
  .wrap{padding:14px 16px 40px}
  .proj{flex:1 1 100%}
  .tb-right{margin-left:0;width:100%}
  .tb-right .btn--solid{margin-left:auto}
  .gantt{grid-template-columns:118px minmax(0,1fr);border-radius:14px}
  .s-date,.s-count{display:none}
  .s-indent{padding-left:12px}
  .s-row{padding:0 4px 0 6px;gap:4px}
  .side-head{padding:0 8px 9px}
  .panel{padding:18px 16px}
  .hol-add{grid-template-columns:minmax(0,1fr) auto}
  .hol-add > label:first-child{grid-column:1 / -1}
  .side-head span:last-child{display:none}
  .exp-grid{grid-template-columns:minmax(0,1fr)}
  .f-row{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .f-row .f--sm{grid-column:1 / -1}
  .modal{align-items:flex-end}
  .sheet{height:auto;max-height:92vh;border-radius:20px 20px 0 0;width:100%}
}
@media (prefers-reduced-motion:reduce){
  .sheet,.s-caret{animation:none;transition:none}
}

/* 다크 모드 (인쇄 · 내보내기는 라이트 그대로) */
@media screen{
  :root[data-theme="dark"]{
    color-scheme:dark;
    --bg:#131418; --surface:#191a20; --panel:#1e1f26; --panel-soft:#23242c;
    --ink:#eaebf0; --ink-hover:#ffffff; --ink-2:#c6c8d2; --sub:#9fa1ad; --muted:#8a8c98;
    --line:#2c2e37; --line-2:#383a45; --line-3:#25262e; --hover:#2a2b34; --soft:#25262e; --track:#30323c;
    --accent:#8ea2ff; --accent-soft:rgba(142,162,255,.14);
    --danger:#ff8178;
    --c-bg:#1a1b21; --c-head:#1f2027; --c-grid:#25262e; --c-grid-2:#34363f; --c-wkend:#20212a; --c-hol:#3a2326; --c-grp:#1f2028;
    --c-text:#e6e7ee; --c-sub:#9a9ca8; --c-sun:#ff8a80; --c-sat:#9fb0ff; --c-today:#ff6b61; --c-dep:#7d7f8c;
  }
  :root[data-theme="dark"] .tb-presets button[aria-pressed="true"],
  :root[data-theme="dark"] .btn--solid,
  :root[data-theme="dark"] .toast{color:var(--bg)}
  :root[data-theme="dark"] .seg input:checked + span{background:var(--line-2);box-shadow:0 1px 3px rgba(0,0,0,.4)}
  :root[data-theme="dark"] .modal{background:rgba(0,0,0,.55)}
  :root[data-theme="dark"] .sheet{box-shadow:-20px 0 50px rgba(0,0,0,.5),0 0 0 1px var(--line)}
  :root[data-theme="dark"] .hol-list button:hover{background:rgba(255,255,255,.1)}
  :root[data-theme="dark"] .sw{box-shadow:inset 0 0 0 1px rgba(255,255,255,.15)}
  :root[data-theme="dark"] .gc-today-tx{fill:#1a1b21}
}