:root{
  --bg:#0f1720; --panel:#151f2b; --panel2:#1b2837; --line:#26364a;
  --txt:#e7eef6; --mut:#93a3b6; --brand:#2f8bff; --brand2:#16b8a6;
  --recv:#3b82f6; --prog:#f59e0b; --pend:#ef4444; --done:#22c55e;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"Apple SD Gothic Neo","Malgun Gothic",Segoe UI,Roboto,sans-serif;
  background:var(--bg);color:var(--txt);font-size:14px}
a{color:inherit;text-decoration:none}

/* ---------- Layout ---------- */
.layout{display:flex;min-height:100vh}
.sidebar{width:236px;flex:0 0 236px;background:var(--panel);border-right:1px solid var(--line);
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}
.brand{display:flex;align-items:center;gap:10px;padding:18px 16px;border-bottom:1px solid var(--line)}
.brand-mark{font-size:22px}
.brand-mark.big{font-size:40px}
.brand-text strong{display:block;font-size:16px;letter-spacing:1px}
.brand-text small{color:var(--mut);letter-spacing:3px;font-size:10px}

.nav{padding:8px}
.nav-top{width:100%;display:flex;align-items:center;gap:10px;padding:10px 10px;border:0;background:none;
  color:var(--txt);cursor:pointer;border-radius:8px;font-size:14px;text-align:left}
.nav-top:hover{background:var(--panel2)}
.nav-top .ic{width:20px;text-align:center}
.nav-top .lbl{flex:1}
.nav-top .arrow{color:var(--mut);transition:transform .15s;font-size:11px}
.nav-group.open .arrow{transform:rotate(90deg)}
.nav-children{display:none;padding:2px 0 6px 40px}
.nav-group.open .nav-children{display:block}
.nav-child{display:block;padding:7px 10px;color:var(--mut);border-radius:6px;font-size:13px}
.nav-child:hover{background:var(--panel2);color:var(--txt)}
.nav-child.active{background:var(--brand);color:#fff}
.nav-top.solo.active{background:var(--brand);color:#fff}

.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 22px;
  border-bottom:1px solid var(--line);background:var(--panel);position:sticky;top:0;z-index:5}
.crumb{color:var(--mut);font-size:13px}
.top-right{display:flex;align-items:center;gap:14px}
.lang-switch a{color:var(--mut)}
.lang-switch a.on{color:var(--brand);font-weight:600}
.who{color:var(--txt)}
.btn-logout{padding:6px 12px;border:1px solid var(--line);border-radius:7px;color:var(--mut)}
.btn-logout:hover{border-color:var(--brand);color:var(--txt)}

.content{padding:22px}
.page-head{display:flex;align-items:baseline;gap:12px;margin-bottom:18px}
.page-head h2{margin:0;font-size:20px}
.sample-tag{color:var(--mut);font-size:12px}

/* ---------- KPI ---------- */
.kpi-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px 16px;
  position:relative;overflow:hidden}
.kpi::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px}
.kpi-recv::before{background:var(--recv)}
.kpi-prog::before{background:var(--prog)}
.kpi-pend::before{background:var(--pend)}
.kpi-done::before{background:var(--done)}
.kpi-num{font-size:30px;font-weight:700}
.kpi-lbl{color:var(--mut);margin-top:4px}

/* ---------- Cards / grid ---------- */
.dash-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}
.card h3{margin:0 0 12px;font-size:15px}
@media(max-width:960px){.dash-grid{grid-template-columns:1fr}.kpi-row{grid-template-columns:repeat(2,1fr)}}

/* ---------- Progress table ---------- */
.prog-table{width:100%;border-collapse:collapse}
.prog-table th{text-align:left;color:var(--mut);font-weight:500;font-size:12px;padding:8px 8px;border-bottom:1px solid var(--line)}
.prog-table td{padding:10px 8px;border-bottom:1px solid var(--line)}
.col-prog{width:170px}
.pill{padding:3px 9px;border-radius:20px;font-size:12px;color:#fff}
.pill.prog{background:var(--prog)}
.pill.pend{background:var(--pend)}
.pill.done{background:var(--done)}
.bar{display:inline-block;width:110px;height:8px;background:var(--panel2);border-radius:6px;overflow:hidden;vertical-align:middle}
.bar-fill{height:100%;border-radius:6px}
.bar-fill.prog{background:var(--prog)}
.bar-fill.pend{background:var(--pend)}
.bar-fill.done{background:var(--done)}
.bar-num{margin-left:8px;color:var(--mut);font-size:12px}

/* ---------- Mini calendar ---------- */
.mini-cal{width:100%;border-collapse:collapse;table-layout:fixed}
.mini-cal th{color:var(--mut);font-weight:500;font-size:12px;padding:6px 0}
.mini-cal td{height:52px;vertical-align:top;border:1px solid var(--line);padding:4px;font-size:12px}
.mini-cal td.empty{background:transparent;border-color:transparent}
.mini-cal .dnum{color:var(--mut)}
.mini-cal td.today .dnum{background:var(--brand);color:#fff;border-radius:50%;padding:1px 6px}
.mini-cal td.has-ev{background:var(--panel2)}
.mini-cal .ev{display:block;margin-top:3px;color:var(--brand2);font-size:11px;line-height:1.2}

/* ---------- Placeholder ---------- */
.placeholder{background:var(--panel);border:1px dashed var(--line);border-radius:12px;
  padding:60px 20px;text-align:center}
.ph-icon{font-size:44px}
.placeholder h3{margin:10px 0 6px}
.placeholder p{color:var(--mut);margin:4px 0}
.ph-path{margin-top:14px;font-size:12px;color:var(--brand2)}

/* ---------- Login ---------- */
.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh;
  background:radial-gradient(1200px 600px at 50% -10%,#1b2c44,var(--bg))}
.login-card{width:360px;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:30px 28px}
.login-brand{text-align:center;margin-bottom:22px}
.login-brand h1{margin:8px 0 2px;font-size:22px;letter-spacing:1px}
.login-brand p{margin:0;color:var(--mut);font-size:12px}
.login-form{display:flex;flex-direction:column;gap:14px}
.fld{display:flex;flex-direction:column;gap:6px}
.fld span{color:var(--mut);font-size:12px}
.fld input{padding:11px 12px;border:1px solid var(--line);border-radius:9px;background:var(--panel2);color:var(--txt);font-size:14px}
.fld input:focus{outline:none;border-color:var(--brand)}
.lang-choose{margin-top:2px}
.lang-label{display:block;color:var(--mut);font-size:12px;margin-bottom:6px}
.lang-opts{display:flex;gap:10px}
.lang-opt{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:9px;
  border:1px solid var(--line);border-radius:9px;cursor:pointer;background:var(--panel2)}
.lang-opt input{accent-color:var(--brand)}
.btn-login{margin-top:6px;padding:12px;border:0;border-radius:9px;background:var(--brand);color:#fff;
  font-size:15px;font-weight:600;cursor:pointer}
.btn-login:hover{filter:brightness(1.08)}
.login-hint{text-align:center;color:var(--mut);font-size:11px;margin-top:16px}
.flash{padding:10px 12px;border-radius:9px;margin-bottom:14px;font-size:13px}
.flash.error{background:rgba(239,68,68,.15);border:1px solid var(--pend);color:#fca5a5}