:root{
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --ink:#1C1D21;
  --ink-soft:#5B5C63;
  --ink-faint:#8B8C93;
  --accent:#2451B0;
  --accent-soft:#E7EEFB;
  --accent-dark:#173B87;
  --warn:#C64C3C;
  --warn-soft:#FBEAE7;
  --ok:#2E7D4F;
  --ok-soft:#E8F3EC;
  --amber:#B8791A;
  --amber-soft:#FBF1E1;
  --line:#E2DED2;
  --line-strong:#C9C4B4;
  --radius:10px;
  --shadow: 0 1px 2px rgba(28,29,33,0.04), 0 4px 14px rgba(28,29,33,0.06);
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:'IBM Plex Sans',sans-serif;-webkit-font-smoothing:antialiased;}
.mono{font-family:'IBM Plex Mono',monospace;}
#app{min-height:100vh;display:flex;flex-direction:column;}

/* ============ LOGIN ============ */
#login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;}
.login-box{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:36px;max-width:360px;width:100%;}
.login-box .mark{width:44px;height:44px;border-radius:50%;border:2px solid var(--accent);display:flex;align-items:center;justify-content:center;font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:15px;color:#fff;background:var(--accent-dark);margin-bottom:14px;}
.login-box h1{font-size:19px;margin:0 0 2px;}
.login-box p.sub{color:var(--ink-soft);font-size:13px;margin:0 0 22px;}
.login-box label{display:block;font-size:11.5px;font-weight:600;color:var(--ink-soft);margin:14px 0 4px;text-transform:uppercase;letter-spacing:0.4px;}
.login-box input{width:100%;}
.login-box button{margin-top:22px;width:100%;padding:11px;}
.login-error{background:var(--warn-soft);color:#8a2f22;border:1px solid #eec3ba;padding:10px 12px;border-radius:8px;font-size:13px;margin-top:14px;display:none;}
.login-error.show{display:block;}

/* ============ HEADER / NAV ============ */
header.top{background:var(--ink);color:#fff;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.brand{display:flex;align-items:center;gap:12px;}
.brand .mark{width:34px;height:34px;border-radius:50%;border:2px solid var(--accent);display:flex;align-items:center;justify-content:center;font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:13px;color:#fff;background:var(--accent-dark);flex-shrink:0;}
.brand h1{font-size:16px;margin:0;font-weight:600;letter-spacing:0.2px;}
.brand p{margin:0;font-size:11.5px;color:#B9BAC2;font-family:'IBM Plex Mono',monospace;letter-spacing:0.3px;}
nav.tabs{display:flex;gap:4px;flex-wrap:wrap;align-items:center;}
nav.tabs button{background:transparent;border:1px solid transparent;color:#C7C8D0;font-family:'IBM Plex Sans',sans-serif;font-size:13px;font-weight:500;padding:8px 12px;border-radius:8px;cursor:pointer;transition:all .15s;}
nav.tabs button:hover{color:#fff;background:rgba(255,255,255,0.06);}
nav.tabs button.active{background:var(--accent);color:#fff;}
.cal-toggle{display:flex;border:1px solid #45464F;border-radius:8px;overflow:hidden;margin-left:6px;}
.cal-toggle button{background:transparent;border:none;color:#C7C8D0;font-size:11.5px;font-weight:600;padding:7px 10px;cursor:pointer;font-family:'IBM Plex Mono',monospace;letter-spacing:0.4px;}
.cal-toggle button.active{background:var(--amber);color:#1C1D21;}
.who{display:flex;align-items:center;gap:10px;}
.who .name{font-size:12.5px;color:#C7C8D0;}
.who .role-tag{font-size:10px;background:rgba(255,255,255,0.1);padding:2px 8px;border-radius:20px;text-transform:uppercase;letter-spacing:0.4px;color:#C7C8D0;}
.logout-btn{background:transparent;border:1px solid #45464F;color:#C7C8D0;font-size:12px;padding:6px 10px;border-radius:7px;cursor:pointer;}
.logout-btn:hover{color:#fff;border-color:#666;}

main{flex:1;padding:24px;max-width:1180px;width:100%;margin:0 auto;}
.view{display:none;}
.view.active{display:block;animation:fade .18s ease;}
@keyframes fade{from{opacity:0;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}

.row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:16px;}
.view h2{font-size:20px;margin:0 0 2px;font-weight:600;}
.view .sub{color:var(--ink-soft);font-size:13px;margin:0;}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:16px;}
.card h3{margin:0 0 12px;font-size:14px;text-transform:uppercase;letter-spacing:0.6px;color:var(--ink-soft);font-weight:600;}

.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px;}
.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px;}
.stat-card .num{font-size:26px;font-weight:700;line-height:1.1;}
.stat-card .lbl{font-size:11.5px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:0.4px;margin-top:4px;}
.stat-card.warn .num{color:var(--warn);}
.stat-card.ok .num{color:var(--ok);}
@media(max-width:820px){.stat-grid{grid-template-columns:repeat(2,1fr);}}

table{width:100%;border-collapse:collapse;font-size:13.5px;}
th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:0.5px;color:var(--ink-faint);font-weight:600;padding:8px 10px;border-bottom:1px solid var(--line-strong);}
td{padding:10px 10px;border-bottom:1px solid var(--line);vertical-align:top;}
tr:last-child td{border-bottom:none;}
tbody tr:hover{background:#FAFAF7;}

button{font-family:'IBM Plex Sans',sans-serif;}
.btn{background:var(--accent);color:#fff;border:none;padding:9px 14px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;transition:background .15s;}
.btn:hover{background:var(--accent-dark);}
.btn.ghost{background:transparent;color:var(--accent);border:1px solid var(--accent);}
.btn.ghost:hover{background:var(--accent-soft);}
.btn.warn{background:var(--warn);}
.btn.warn:hover{background:#a53c2e;}
.btn.small{padding:5px 10px;font-size:12px;border-radius:6px;}
.btn:disabled{opacity:0.45;cursor:not-allowed;}
.btn.subtle{background:var(--bg);color:var(--ink);border:1px solid var(--line-strong);}
.btn.subtle:hover{background:#EFECE2;}

input,select,textarea{font-family:'IBM Plex Sans',sans-serif;font-size:13.5px;padding:8px 10px;border:1px solid var(--line-strong);border-radius:7px;background:#fff;color:var(--ink);width:100%;}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent);}
label{display:block;font-size:11.5px;font-weight:600;color:var(--ink-soft);margin-bottom:4px;text-transform:uppercase;letter-spacing:0.4px;}
.field{margin-bottom:12px;}
.hint{font-size:11px;color:var(--ink-faint);margin-top:3px;text-transform:none;letter-spacing:0;font-weight:400;}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;}
@media(max-width:700px){.grid2,.grid3{grid-template-columns:1fr;}}

.stamp{display:inline-flex;align-items:center;justify-content:center;font-family:'IBM Plex Mono',monospace;font-size:10.5px;font-weight:600;letter-spacing:0.6px;padding:3px 9px;border-radius:5px;border:1.5px dashed currentColor;transform:rotate(-2deg);white-space:nowrap;}
.stamp.sch{color:var(--accent);background:var(--accent-soft);}
.stamp.oc{color:var(--amber);background:var(--amber-soft);}
.stamp.overdue{color:var(--warn);background:var(--warn-soft);transform:rotate(-3deg);}
.stamp.due-soon{color:var(--amber);background:var(--amber-soft);transform:rotate(-1deg);}
.stamp.done{color:var(--ok);background:var(--ok-soft);transform:rotate(1deg);}
.stamp.pending{color:var(--ink-soft);background:#EFECE2;transform:rotate(1deg);}
.stamp.new{color:var(--ink-soft);background:#EFECE2;}

.chip{display:inline-block;font-size:11px;padding:2px 8px;border-radius:20px;background:var(--accent-soft);color:var(--accent-dark);margin:0 4px 4px 0;font-weight:600;}

.empty{padding:32px 16px;text-align:center;color:var(--ink-faint);font-size:13.5px;}
.empty .big{font-size:28px;margin-bottom:6px;}

.chk-list{display:grid;grid-template-columns:1fr 1fr;gap:6px;}
.chk-item{display:flex;align-items:center;gap:6px;font-size:13px;}
.chk-item input{width:auto;}
.chk-item label{margin:0;text-transform:none;font-weight:400;font-size:13px;color:var(--ink);}

.eng-chip-select{display:flex;flex-wrap:wrap;gap:5px;max-width:240px;}
.chip-toggle{display:inline-flex;align-items:center;gap:4px;font-size:11.5px;padding:4px 8px;border-radius:20px;border:1px solid var(--line-strong);background:#fff;cursor:pointer;user-select:none;color:var(--ink-soft);}
.chip-toggle input{width:auto;margin:0;accent-color:var(--accent);}
.chip-toggle.has-check{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-dark);font-weight:600;}

.ts-row{display:flex;gap:8px;margin-bottom:6px;align-items:center;}
.ts-row span.arrow{color:var(--accent);font-weight:700;}
.ts-row input{flex:1;}
.ts-row button{flex-shrink:0;}

.feedback-row{display:flex;gap:10px;}
.feedback-opt{flex:1;text-align:center;padding:10px 4px;border:2px solid var(--line-strong);border-radius:8px;cursor:pointer;font-size:22px;background:#fff;}
.feedback-opt.selected{border-color:var(--accent);background:var(--accent-soft);}
.feedback-opt .lbl{font-size:10px;color:var(--ink-soft);margin-top:3px;text-transform:uppercase;letter-spacing:0.3px;}

.overlay{position:fixed;inset:0;background:rgba(28,29,33,0.55);display:none;align-items:flex-start;justify-content:center;padding:30px 16px;z-index:50;overflow-y:auto;}
.overlay.open{display:flex;}
.modal{background:#fff;border-radius:14px;max-width:640px;width:100%;box-shadow:0 20px 60px rgba(0,0,0,0.3);margin-bottom:40px;}
.modal-head{padding:18px 22px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:flex-start;position:sticky;top:0;background:#fff;border-radius:14px 14px 0 0;}
.modal-head h3{margin:0;font-size:16px;}
.modal-head p{margin:2px 0 0;font-size:12.5px;color:var(--ink-soft);}
.modal-body{padding:20px 22px;}
.modal-foot{padding:16px 22px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap;}
.x-close{background:none;border:none;font-size:20px;color:var(--ink-faint);cursor:pointer;line-height:1;padding:4px;}

.progress-track{height:8px;background:var(--bg);border-radius:5px;overflow:hidden;border:1px solid var(--line);}
.progress-fill{height:100%;background:var(--accent);border-radius:5px;}
.progress-fill.behind{background:var(--warn);}

.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 18px;border-radius:9px;font-size:13.5px;box-shadow:var(--shadow);z-index:80;display:none;max-width:520px;}
.toast.show{display:block;}

.kv{font-size:13px;color:var(--ink-soft);line-height:1.7;}
.kv b{color:var(--ink);font-weight:600;}
.note{background:var(--amber-soft);border:1px solid #E6CD9B;color:#7A5411;padding:10px 12px;border-radius:8px;font-size:12.5px;line-height:1.5;}
.icon-btn{background:none;border:none;color:var(--ink-faint);cursor:pointer;font-size:15px;padding:2px 4px;}
.icon-btn:hover{color:var(--warn);}

.bar-chart{display:flex;align-items:flex-end;gap:10px;height:160px;padding-top:10px;overflow-x:auto;}
.bar-col{display:flex;flex-direction:column;align-items:center;justify-content:flex-end;min-width:34px;height:100%;}
.bar-stack{display:flex;flex-direction:column-reverse;width:22px;border-radius:3px 3px 0 0;overflow:hidden;}
.bar-seg.sch{background:var(--accent);}
.bar-seg.oc{background:var(--amber);}
.bar-col .bar-lbl{font-size:10.5px;color:var(--ink-faint);margin-top:6px;font-family:'IBM Plex Mono',monospace;}
.bar-col .bar-val{font-size:10.5px;color:var(--ink-soft);margin-bottom:3px;}
.chart-legend{display:flex;gap:16px;font-size:12px;color:var(--ink-soft);margin-bottom:10px;}
.chart-legend span{display:inline-flex;align-items:center;gap:5px;}
.chart-legend i{width:10px;height:10px;border-radius:3px;display:inline-block;}

.period-nav{display:flex;align-items:center;gap:8px;}
.period-nav .lbl{font-family:'IBM Plex Mono',monospace;font-size:13px;min-width:90px;text-align:center;}

::placeholder{color:var(--ink-faint);}
footer.foot{padding:16px 24px;text-align:center;font-size:11.5px;color:var(--ink-faint);font-family:'IBM Plex Mono',monospace;}

.hidden{display:none !important;}