:root{
  --bg:#f5f7fa; --paper:#ffffff; --surface:#f7f8fb; --border:#e7ebf0;
  --fg:#17263c; --fg-muted:#5f6b76; --fg-faint:#8a949d;
  --accent:#4269e8; --accent-fg:#ffffff; --accent-soft:#eef2ff;
  --today-bg:#eaf2fb;
  --ok:#187453; --ok-bg:#daf4e9;
  --warn:#a24432; --warn-bg:#ffe5e0;
  --danger:#b23a2e; --danger-weak:#fbe8e5;
  --focus:#4269e8;
  --shadow:0 12px 40px rgba(23,38,60,.12);
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#15181b; --paper:#1b1f23; --surface:#20252a; --border:#2c3237;
    --fg:#e8eaed; --fg-muted:#9aa4ad; --fg-faint:#6d7781;
    --accent:#5b9bdb; --accent-fg:#0d1720; --accent-soft:#1e2a3c;
    --today-bg:#1e2a36;
    --ok:#5fd6a6; --ok-bg:#15332a;
    --warn:#e2766a; --warn-bg:#3a211d;
    --danger:#e2766a; --danger-weak:#3a211d;
    --focus:#5b9bdb;
    --shadow:0 12px 40px rgba(0,0,0,.45);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#15181b; --paper:#1b1f23; --surface:#20252a; --border:#2c3237;
  --fg:#e8eaed; --fg-muted:#9aa4ad; --fg-faint:#6d7781;
  --accent:#5b9bdb; --accent-fg:#0d1720; --accent-soft:#1e2a3c;
  --today-bg:#1e2a36;
  --ok:#5fd6a6; --ok-bg:#15332a;
  --warn:#e2766a; --warn-bg:#3a211d;
  --danger:#e2766a; --danger-weak:#3a211d;
  --focus:#5b9bdb;
  --shadow:0 12px 40px rgba(0,0,0,.45);
  color-scheme:dark;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:14px/1.45 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
[hidden]{display:none!important}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

#app{min-height:100%}
.shell{max-width:1320px;margin:0 auto;padding:22px 20px 40px}
.is-readonly .rw-only{display:none!important}

/* topbar */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:750;letter-spacing:-.3px}
.logo{width:32px;height:32px;border-radius:10px;background:var(--accent);display:grid;place-items:center;color:var(--accent-fg);font-size:16px;box-shadow:0 5px 12px rgba(66,105,232,.3);flex:0 0 auto}
.top-actions{display:flex;align-items:center;gap:8px}
.today-label{color:var(--fg-muted);font-size:12.5px;margin-right:2px}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-size:11px;font-weight:700;flex:0 0 auto}

/* heading */
.heading{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:16px;flex-wrap:wrap}
.eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:1.2px;color:var(--accent);font-weight:750;margin-bottom:5px}
.heading h1{font-size:25px;letter-spacing:-.7px;margin:0}
.sub{color:var(--fg-muted);margin:5px 0 0;font-size:13px;display:flex;flex-wrap:wrap;gap:4px 12px}
.sub b{color:var(--fg);font-weight:650}

/* buttons */
.btn{font-weight:650;font-size:13px;border-radius:9px;border:1px solid var(--border);background:var(--paper);color:var(--fg);padding:8px 13px}
.btn:hover{border-color:var(--accent)}
.btn:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-fg);box-shadow:0 6px 15px rgba(66,105,232,.25)}
.btn-primary:hover{filter:brightness(1.05)}
.btn-ghost{background:none;border-color:transparent;color:var(--fg-muted);padding:5px 8px;font-size:12px}
.btn-ghost:hover{color:var(--fg);border-color:var(--border)}
.btn-danger{color:var(--danger);border-color:var(--danger);background:var(--paper)}
.btn-danger.confirming{background:var(--danger);color:#fff}
.btn.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}
.btn-sm{padding:6px 10px;font-size:12px}
.btn-icon{width:30px;height:30px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;padding:0;font-size:16px}
.btn-row{display:flex;flex-wrap:wrap;gap:8px}
.btn[disabled]{opacity:.6;cursor:default}

/* example banner */
.example-banner{font-size:12.5px;color:var(--fg-muted);background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:10px 13px;margin-bottom:16px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:space-between}

/* layout */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:16px;align-items:start}
@media (max-width:980px){.layout{grid-template-columns:1fr}}
.panel{background:var(--paper);border:1px solid var(--border);border-radius:14px;box-shadow:0 3px 12px rgba(23,38,60,.05)}

/* roster panel */
.cal-head{padding:14px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);flex-wrap:wrap;gap:10px}
.week-nav{display:flex;align-items:center;gap:10px}
.week-nav h2{margin:0;font-size:15.5px;letter-spacing:-.2px;min-width:170px;font-weight:650}
.navbtn{width:28px;height:28px;border:1px solid var(--border);background:var(--paper);border-radius:8px;color:var(--fg-muted);font-size:15px;display:inline-flex;align-items:center;justify-content:center}
.navbtn:hover{background:var(--surface)}

.grid-scroll{overflow-x:auto}
table.roster-table{width:100%;border-collapse:collapse;min-width:760px;font-size:12.5px}
table.roster-table th,table.roster-table td{border-bottom:1px solid var(--border);padding:0;vertical-align:top}
table.roster-table thead th{padding:9px 8px;text-align:left;font-size:10.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--fg-muted);font-weight:700;background:var(--surface);white-space:nowrap}
table.roster-table thead th.col-day{text-align:center}
table.roster-table thead th.col-day.is-today{color:var(--accent)}
table.roster-table th.col-emp{position:sticky;left:0;background:var(--surface);z-index:1;min-width:150px}
table.roster-table td.col-emp{position:sticky;left:0;background:var(--paper);z-index:1;padding:9px 10px;min-width:150px;border-right:1px solid var(--border)}
.emp-name{font-weight:650;font-size:13px;display:flex;align-items:center;gap:7px}
.emp-dot{width:9px;height:9px;border-radius:50%;flex:0 0 auto}
.emp-role{color:var(--fg-muted);font-size:11px;margin-top:2px}
.emp-hours{font-size:11.5px;margin-top:5px;font-weight:700;color:var(--fg-muted)}
.emp-hours.ot{color:var(--warn)}
td.day-cell{padding:5px;min-width:112px}
td.day-cell.is-today{background:var(--today-bg)}
.shift-chip{display:block;width:100%;text-align:left;border:1px solid transparent;border-left:3px solid var(--accent);background:var(--accent-soft);border-radius:7px;padding:6px 7px;font-size:11.5px;line-height:1.35}
.shift-chip + .shift-chip{margin-top:4px}
.shift-chip:hover{filter:brightness(0.97)}
.chip-time{display:block;font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}
.chip-hours{color:var(--fg-muted);font-weight:600}
.chip-note{display:block;color:var(--fg-muted);margin-top:2px;white-space:pre-wrap;word-break:break-word}
.add-cell{width:100%;min-height:40px;border:1px dashed var(--border);border-radius:7px;background:none;color:var(--fg-faint);font-size:16px;display:flex;align-items:center;justify-content:center}
.add-cell.add-more{min-height:22px;margin-top:4px;font-size:13px}
.add-cell:hover{border-color:var(--accent);color:var(--accent)}
tfoot td{background:var(--surface);padding:8px 10px;font-size:11.5px}
tfoot td.col-emp{font-weight:700}
.tot-head{font-weight:700}
.tot-hc{color:var(--fg-muted)}

/* sidebar */
.side{display:grid;gap:14px}
.mini{padding:15px}
.side-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:11px}
.side-title h3{font-size:13.5px;margin:0}
.side-title span{font-size:10.5px;color:var(--fg-muted)}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.stats .stat:last-child{grid-column:1/-1}
.stat{border-radius:10px;background:var(--surface);padding:10px}
.stat strong{font-size:20px;display:block;letter-spacing:-.5px}
.stat strong.ot{color:var(--warn)}
.stat span{color:var(--fg-muted);font-size:10.5px}
.agenda-item{display:flex;gap:9px;padding:8px 0;border-top:1px solid var(--border)}
.agenda-item:first-of-type{border-top:0}
.agenda-time{width:46px;flex:0 0 46px;color:var(--accent);font-size:10.5px;font-weight:700;padding-top:1px;white-space:nowrap}
.agenda-name{font-size:12px;font-weight:650}
.agenda-meta{font-size:10px;color:var(--fg-muted);margin-top:1px}
.empty-text{color:var(--fg-faint);font-size:12px;padding:4px 0}
.print-note{font-size:11px;color:var(--fg-faint);padding:10px 16px;border-top:1px solid var(--border)}
.log-link{padding:12px 15px;border-top:1px solid var(--border);text-align:center}

/* overlay / modal (shared by shift + settings + log) */
.overlay{position:fixed;inset:0;background:rgba(20,34,56,.47);display:none;align-items:center;justify-content:center;padding:16px;z-index:30}
.overlay.open{display:flex}
.modal{width:min(100%,480px);max-height:88vh;overflow:auto;background:var(--paper);border-radius:16px;box-shadow:var(--shadow);padding:22px}
.modal.wide{width:min(100%,620px)}
.modal.narrow{width:min(100%,360px)}
.modal-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:16px;gap:10px}
.modal h2{font-size:18px;letter-spacing:-.4px;margin:0}
.modal p.hint{color:var(--fg-muted);font-size:12px;margin:4px 0 0}
.close{border:0;background:var(--surface);border-radius:8px;width:28px;height:28px;font-size:17px;color:var(--fg-muted);flex:0 0 auto}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.field{display:grid;gap:5px}
.field.full{grid-column:1/-1}
.field label{font-size:11px;font-weight:700;color:var(--fg-muted)}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--border);background:var(--paper);border-radius:8px;padding:9px 10px;outline:0;color:var(--fg)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent)}
.field textarea{resize:vertical;min-height:60px}
.form-foot{display:flex;justify-content:flex-end;gap:8px;margin-top:18px;flex-wrap:wrap}
.form-error{color:var(--danger);font-size:12px;font-weight:600;margin:10px 0 0}
.secondary{background:var(--paper);border:1px solid var(--border);border-radius:9px;padding:8px 13px;color:var(--fg-muted);font-weight:600;font-size:13px}
.readout{font-size:13px;padding:9px 10px;background:var(--surface);border-radius:8px;color:var(--fg-muted)}

/* settings */
.settings-section{padding:14px 0;border-bottom:1px solid var(--border)}
.settings-section:first-child{padding-top:0}
.settings-section:last-child{border-bottom:none;padding-bottom:0}
.settings-section h3{font-size:13px;margin:0 0 10px}
.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.roster-list{display:grid;gap:8px;margin-bottom:10px}
.roster-row{border:1px solid var(--border);border-radius:10px;padding:9px 10px;display:flex;align-items:center;gap:9px}
.roster-row .swatch{width:14px;height:14px;border-radius:50%;flex:0 0 auto}
.roster-row .ri-text{flex:1;min-width:0}
.roster-row .ri-name{font-weight:650;font-size:13px}
.roster-row .ri-role{font-size:11px;color:var(--fg-muted)}
.roster-row .ri-actions{display:flex;gap:6px;flex:0 0 auto}
.emp-form{border:1px solid var(--accent);border-radius:10px;padding:11px;display:grid;gap:9px;margin-bottom:10px}
.swatches{display:flex;flex-wrap:wrap;gap:6px}
.swatch-btn{width:22px;height:22px;border-radius:50%;border:2px solid transparent;padding:0}
.swatch-btn.selected{border-color:var(--fg)}

/* toast */
.toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%,16px);opacity:0;pointer-events:none;background:var(--fg);color:var(--bg);padding:10px 10px 10px 15px;border-radius:11px;font-size:12.5px;transition:.2s;z-index:40;display:flex;align-items:center;gap:10px;max-width:92vw}
.toast.show{opacity:1;transform:translate(-50%,0);pointer-events:auto}
.toast-action{background:rgba(255,255,255,.16);border:0;color:inherit;border-radius:7px;padding:6px 10px;font-weight:700;font-size:12px;white-space:nowrap}

.print-only{display:none}

/* login screen */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}

@media (max-width:640px){
  .shell{padding:16px 12px 32px}
  .heading h1{font-size:21px}
  .form-grid,.settings-grid{grid-template-columns:1fr}
  .field.full{grid-column:auto}
  .modal{padding:17px}
  .week-nav h2{min-width:132px;font-size:14px}
  .today-label{display:none}
}

@media print{
  @page{size:landscape;margin:10mm}
  :root,:root[data-theme="dark"],:root:not([data-theme="light"]){
    --bg:#fff; --paper:#fff; --surface:#fff; --border:#bbb;
    --fg:#000; --fg-muted:#333; --fg-faint:#555;
    --accent:#1f3fae; --accent-soft:#fff; --today-bg:#fff;
    --warn:#8a1f12; --danger:#8a1f12; --ok:#145c42;
    color-scheme:light;
  }
  body{background:#fff;color:#000}
  .topbar,.heading,.cal-head,.example-banner,.add-cell,.log-link,.print-note,.side,.overlay,.toast,.navbtn,.no-print{display:none!important}
  .shell{max-width:100%;padding:0}
  .layout{display:block}
  .panel{border:none;box-shadow:none;border-radius:0}
  .print-only{display:block}
  .print-header{margin-bottom:14px}
  .print-header h1{font-size:19px;margin:0 0 3px}
  .print-header .pm{font-size:12px;color:#333;margin:0 0 2px}
  .grid-scroll{overflow:visible!important}
  table.roster-table{min-width:0;font-size:11px;table-layout:fixed}
  td.day-cell,table.roster-table th.col-emp,table.roster-table td.col-emp{min-width:0!important}
  table.roster-table th.col-emp{width:15%}
  table.roster-table th.col-emp,table.roster-table td.col-emp{position:static}
  tr{break-inside:avoid}
  .shift-chip{border:1px solid #aaa;background:#fff!important}
  .chip-time{white-space:normal}
  .sign-line{margin-top:26px;display:flex;justify-content:space-between;font-size:12px;padding-top:26px}
  .sign-line span{border-top:1px solid #333;padding-top:4px;width:46%}
}