:root{
  --bg:#ffffff; --card:#ffffff; --ink:#25303f; --muted:#8a919b;
  --blue:#2a3e83; --blue-d:#1d2c63; --navy:#041e42; --cyan:#3896d7;
  --line:#e4e8ef; --soft:#f4f7fb;
  --b1:#c68a2e; --b2:#2f6fd0; --b3:#2e9e5f; --danger:#d1232a;
}
*{box-sizing:border-box}
body{margin:0;font-family:"Noto Sans TC","Microsoft JhengHei",system-ui,sans-serif;
  background:var(--bg);color:var(--ink);font-size:15px;line-height:1.5}
a{color:var(--blue);text-decoration:none}

.topbar{display:flex;align-items:center;justify-content:space-between;
  background:var(--blue);color:#eef2fb;padding:0 24px;height:56px;
  border-top:3px solid var(--cyan)}
.brand{font-weight:600;letter-spacing:.05em;color:#fff}
.topbar nav a{color:#c3ccdf;margin-left:20px;padding:6px 2px;font-size:14.5px;
  border-bottom:2px solid transparent}
.topbar nav a.on,.topbar nav a:hover{color:#fff;border-bottom-color:var(--cyan)}

main{max-width:1080px;margin:26px auto;padding:0 20px}
h1{font-size:21px;margin:0 0 18px;font-weight:600}
h2{font-size:15px;margin:0 0 12px;color:var(--blue);font-weight:600}

.flash{padding:10px 14px;border-radius:8px;margin-bottom:14px;font-size:14px}
.flash.ok{background:#eaf1fb;color:#254a86;border:1px solid #cfe0f5}
.flash.error{background:#fbe7e7;color:#9a2129;border:1px solid #f0c9c9}

.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:26px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;display:block;border-top:3px solid var(--cyan);
  box-shadow:0 1px 3px rgba(42,62,131,.05)}
.card.b-1{border-top-color:var(--b1)} .card.b-2{border-top-color:var(--b2)}
.card.b-3{border-top-color:var(--b3)} .card.total{border-top-color:var(--blue)}
.card-n{font-size:28px;font-weight:700} .card-l{color:var(--muted);font-size:13px;margin-top:2px}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;
  box-shadow:0 1px 3px rgba(42,62,131,.05)}

.tabs{display:flex;gap:6px;margin-bottom:16px;flex-wrap:wrap}
.tabs a{padding:6px 14px;border:1px solid var(--line);border-radius:20px;
  background:var(--card);font-size:14px;color:var(--ink)}
.tabs a.on{background:var(--blue);color:#fff;border-color:var(--blue)}

table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
th{color:var(--muted);font-weight:600;font-size:12.5px;letter-spacing:.03em}
table.list{background:var(--card);border:1px solid var(--line);border-radius:12px;
  overflow:hidden;box-shadow:0 1px 3px rgba(42,62,131,.05)}
.mono{font-variant-numeric:tabular-nums;font-weight:600}
.muted{color:var(--muted)}
.overdue{color:var(--danger);font-weight:600}
/* due-date urgency */
td.due-soon{color:#c68a2e;font-weight:600}
td.due-near{color:var(--danger);font-weight:600}
td.due-over{color:var(--danger);font-weight:600}
tr.rowover td{color:var(--danger)}
tr.rowover td.mono,tr.rowover td .gcode{color:var(--danger)}
tr.lowrow{background:#fbf1f1}

.badge{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12.5px;color:#fff}
.badge.b-1{background:var(--b1)} .badge.b-2{background:var(--b2)} .badge.b-3{background:var(--b3)}
.tag-low{display:inline-block;margin-left:6px;padding:1px 7px;border-radius:6px;
  font-size:11.5px;background:#f6dcd9;color:#9a2129}

.statusflow{display:flex;gap:4px}
.statusflow form{margin:0}
.pill{border:1px solid var(--line);background:#f5f7fb;color:var(--muted);
  padding:4px 10px;border-radius:16px;font-size:12.5px;cursor:pointer;font-family:inherit}
.pill.active.b-1{background:var(--b1);color:#fff;border-color:var(--b1)}
.pill.active.b-2{background:var(--b2);color:#fff;border-color:var(--b2)}
.pill.active.b-3{background:var(--b3);color:#fff;border-color:var(--b3)}
.pill:hover{border-color:var(--cyan)}

.ops{display:flex;gap:6px;align-items:center}
.ops form{margin:0}
.btn{display:inline-block;padding:6px 13px;border-radius:8px;font-size:13.5px;
  cursor:pointer;border:1px solid transparent;font-family:inherit}
.btn.primary{background:var(--blue);color:#fff}
.btn.primary:hover{background:var(--blue-d)}
.btn.ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn.ghost:hover{border-color:var(--cyan)}
.btn.danger{background:transparent;border-color:#f0c9c9;color:var(--danger)}
.btn.danger:hover{background:#fbe7e7}

.newbox{background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:6px 16px;margin-bottom:18px;box-shadow:0 1px 3px rgba(42,62,131,.05)}
.newbox summary{cursor:pointer;padding:10px 0;font-weight:600;color:var(--blue)}
.form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px 16px;padding:8px 0 16px}
.form-grid label{display:flex;flex-direction:column;font-size:13px;color:var(--muted);gap:4px}
.form-grid .wide{grid-column:1/-1}
.form-grid input,.form-grid select{padding:8px 10px;border:1px solid var(--line);
  border-radius:8px;font-size:14px;color:var(--ink);background:#fff;font-family:inherit}
.form-grid input:focus,.form-grid select:focus{outline:none;border-color:var(--cyan)}
.card-form{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;
  box-shadow:0 1px 3px rgba(42,62,131,.05)}

.adjust{display:flex;gap:4px;align-items:center;margin:0}
.adjust input{width:92px;padding:6px 8px;border:1px solid var(--line);border-radius:8px;font-family:inherit}

.foot{text-align:center;color:var(--muted);font-size:12.5px;padding:26px 0}

/* toolbar + search */
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.toolbar .tabs{margin-bottom:0}
.searchbar{display:flex;gap:6px;align-items:center;margin:0}
.searchbar input{padding:7px 13px;border:1px solid var(--line);border-radius:20px;font-size:14px;width:250px;font-family:inherit}
.searchbar input:focus{outline:none;border-color:var(--cyan)}

/* login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--soft)}
.login-card{background:#fff;border:1px solid var(--line);border-top:3px solid var(--blue);
  border-radius:12px;padding:30px 28px;width:320px;box-shadow:0 2px 10px rgba(42,62,131,.08)}
.login-brand{font-weight:600;color:var(--blue);font-size:17px;letter-spacing:.05em;margin-bottom:18px;text-align:center}
.login-card form{display:flex;flex-direction:column;gap:14px}
.login-card label{display:flex;flex-direction:column;font-size:13px;color:var(--muted);gap:6px}
.login-card input{padding:9px 11px;border:1px solid var(--line);border-radius:8px;font-size:15px;font-family:inherit}
.login-card input:focus{outline:none;border-color:var(--cyan)}
.login-card .btn{padding:10px;font-size:15px}

/* gantt (day grid) */
.gantt{background:var(--card);border:1px solid var(--line);border-radius:12px;
  box-shadow:0 1px 3px rgba(42,62,131,.05);overflow-x:auto;padding-bottom:4px}
.gwrap{display:flex;width:max-content}
.glabelcol{position:sticky;left:0;z-index:3;background:var(--card);width:200px;flex:none;
  padding:0 12px;font-size:13px;color:var(--ink);display:flex;align-items:center;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-right:1px solid var(--line)}
.ghead{position:sticky;top:0;z-index:4}
.ghead .glabelcol{background:var(--soft);z-index:5}
.gtrack{position:relative;height:34px;flex:none;
  background-image:repeating-linear-gradient(to right,#eef1f6 0 1px,transparent 1px var(--dw))}
.gtrack-head{height:26px;background:var(--soft)}
.gdaylbl{position:absolute;top:6px;font-size:10px;color:var(--muted);width:var(--dw);text-align:center}
.gdaylbl.gmon{color:var(--blue);font-weight:600}
.gcode{font-weight:600;color:var(--blue)}
.glabel-link{text-decoration:none;color:inherit}
.glabel-link:hover,.glabel-link:hover .gcode{color:var(--blue)}
a.gbar{text-decoration:none;cursor:pointer}
a.gbar:hover{filter:brightness(.92)}
.gtoday-line{position:absolute;top:0;bottom:0;width:2px;background:var(--danger);z-index:2}
.gbar{position:absolute;top:6px;height:21px;border-radius:5px;display:flex;align-items:center;
  min-width:8px;z-index:1;box-shadow:0 1px 2px rgba(0,0,0,.12)}
.gbar-txt{font-size:11px;color:#fff;padding:0 8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gb-1{background:var(--b1)} .gb-2{background:var(--b2)} .gb-3{background:var(--b3)}
.gbar-over{background:var(--danger)}
.glegend{display:flex;gap:16px;align-items:center;margin-top:14px;font-size:13px;flex-wrap:wrap}
.glegend span{display:flex;align-items:center;gap:6px}
.glegend i{width:14px;height:14px;border-radius:4px;display:inline-block}
.glegend .gb-1{background:var(--b1)} .glegend .gb-2{background:var(--b2)}
.glegend .gb-3{background:var(--b3)} .glegend .gover{background:var(--danger)}

.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch}

@media(max-width:760px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .grid2{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr 1fr}
  main{margin:16px auto;padding:0 14px}
  .panel{overflow-x:auto}
}
@media(max-width:600px){
  .topbar{height:auto;flex-direction:column;align-items:stretch;padding:8px 14px;gap:6px}
  .topbar nav{width:100%;display:flex;overflow-x:auto;gap:16px;padding-bottom:2px}
  .topbar nav a{margin-left:0;white-space:nowrap;flex:none;padding:4px 0}
  .toolbar{flex-direction:column;align-items:stretch;gap:10px}
  .searchbar{width:100%}
  .searchbar input{flex:1;width:auto}
  .form-grid{grid-template-columns:1fr}
  h1{font-size:19px}
  .card{padding:13px 14px}
  .card-n{font-size:23px}
  .tablewrap table.list{min-width:660px}
  table.list th,table.list td{padding:8px 9px}
  table.list td:first-child,table.list th:first-child{position:sticky;left:0;background:var(--card);z-index:1;box-shadow:1px 0 0 var(--line)}
}
@media(max-width:420px){
  .cards{gap:10px}
  main{padding:0 10px}
}