:root{
  --bg:#f5f6f8; --surface:#ffffff; --ink:#161b26; --muted:#697086;
  --line:#e6e8ee; --line2:#eef0f4; --accent:#4f46e5; --accent-soft:#eef0ff;
  --present:#12924a; --present-bg:#e7f6ed;
  --absent:#d23b3b;  --absent-bg:#fdeaea;
  --leave:#c47a12;   --leave-bg:#fbf1e0;
  --holiday:#5b6474; --holiday-bg:#eef0f3;
  --shadow:0 1px 2px rgba(20,25,40,.05),0 4px 16px rgba(20,25,40,.04);
  --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.45;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent); text-decoration:none}
h1,h2,h3{margin:0; font-weight:650; letter-spacing:-.01em}
.muted{color:var(--muted)}
.wrap{max-width:1180px; margin:0 auto; padding:0 20px}

/* top bar */
.topbar{background:var(--surface); border-bottom:1px solid var(--line); position:sticky; top:0; z-index:20}
.topbar .wrap{display:flex; align-items:center; gap:22px; height:60px}
.brand{display:flex; align-items:center; gap:10px; font-weight:700; letter-spacing:-.02em}
.brand .dot{width:11px; height:26px; border-radius:4px;
  background:linear-gradient(180deg,var(--present) 0 25%,var(--leave) 25% 50%,var(--absent) 50% 75%,var(--holiday) 75% 100%);}
.brand-logo{height:30px; width:auto; max-width:150px; object-fit:contain; border-radius:6px; display:block}
.nav{display:flex; gap:4px; margin-left:6px}
.nav a{padding:8px 14px; border-radius:9px; color:var(--muted); font-weight:550; font-size:14px}
.nav a:hover{background:var(--line2); color:var(--ink)}
.nav a.on{background:var(--accent-soft); color:var(--accent)}
.spacer{flex:1}
.logout{color:var(--muted); font-size:13px}

/* layout */
main{padding:28px 0 60px}
.page-head{display:flex; align-items:flex-end; justify-content:space-between; gap:16px; margin-bottom:20px; flex-wrap:wrap}
.page-head h1{font-size:24px}
.page-head p{margin:4px 0 0; color:var(--muted); font-size:14px}

.card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow)}
.card-pad{padding:20px}

/* status chips */
.chip{display:inline-flex; align-items:center; gap:6px; font-size:12.5px; font-weight:650;
  padding:3px 10px; border-radius:999px; white-space:nowrap}
.chip::before{content:""; width:7px; height:7px; border-radius:50%}
.st-present{color:var(--present); background:var(--present-bg)} .st-present::before{background:var(--present)}
.st-absent{color:var(--absent); background:var(--absent-bg)}    .st-absent::before{background:var(--absent)}
.st-leave{color:var(--leave); background:var(--leave-bg)}        .st-leave::before{background:var(--leave)}
.st-holiday{color:var(--holiday); background:var(--holiday-bg)}  .st-holiday::before{background:var(--holiday)}

/* stat tiles */
.tiles{display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-bottom:22px}
.tile{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:16px 18px; box-shadow:var(--shadow)}
.tile .n{font-size:28px; font-weight:720; letter-spacing:-.02em}
.tile .l{font-size:13px; color:var(--muted); margin-top:2px}
.tile.present .n{color:var(--present)} .tile.absent .n{color:var(--absent)}
.tile.leave .n{color:var(--leave)}     .tile.holiday .n{color:var(--holiday)}

/* table */
table{width:100%; border-collapse:collapse; font-size:14px}
th,td{text-align:left; padding:11px 14px; border-bottom:1px solid var(--line2)}
th{font-size:12px; text-transform:uppercase; letter-spacing:.04em; color:var(--muted); font-weight:600}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#fafbfc}
.num{text-align:right; font-variant-numeric:tabular-nums}
.emp-name{font-weight:600}
.emp-role{color:var(--muted); font-size:12.5px}

/* attendance bar */
.bar{height:8px; border-radius:6px; background:var(--line2); overflow:hidden; display:flex; min-width:120px}
.bar span{display:block; height:100%}
.bar .p{background:var(--present)} .bar .a{background:var(--absent)} .bar .l{background:var(--leave)}
.pct{font-weight:700; font-variant-numeric:tabular-nums}

/* forms */
label.fl{display:block; font-size:13px; font-weight:600; color:var(--muted); margin-bottom:6px}
input,select,button{font:inherit}
input[type=text],input[type=password],input[type=date],input[type=number],select{
  width:100%; padding:10px 12px; border:1px solid var(--line); border-radius:10px; background:#fff; color:var(--ink)}
input:focus,select:focus{outline:2px solid var(--accent-soft); border-color:var(--accent)}
input[type=color]{padding:3px; height:42px; cursor:pointer}
input[type=file]{padding:9px 10px; background:#fff; font-size:13.5px}
input[type=file]::file-selector-button{font:inherit; margin-right:12px; padding:7px 12px; border:1px solid var(--line);
  background:var(--line2); border-radius:8px; cursor:pointer; color:var(--ink)}
.btn{display:inline-flex; align-items:center; gap:8px; padding:10px 18px; border-radius:10px; border:1px solid transparent;
  background:var(--accent); color:#fff; font-weight:600; cursor:pointer}
.btn:hover{filter:brightness(1.05)}
.btn.ghost{background:#fff; color:var(--ink); border-color:var(--line)}
.btn.ghost:hover{background:var(--line2)}
.btn.sm{padding:7px 13px; font-size:13px}
.toolbar{display:flex; gap:12px; align-items:flex-end; flex-wrap:wrap; margin-bottom:18px}
.toolbar .field{min-width:150px}

/* mark-day grid */
.mark-emp{border-bottom:1px solid var(--line2)}
.mark-emp:last-child{border-bottom:none}
.mark-row{display:grid; grid-template-columns:1.6fr repeat(4,minmax(70px,1fr)) 110px 110px; gap:10px; align-items:center;
  padding:12px 14px}
.mark-head{color:var(--muted); font-size:12px; text-transform:uppercase; letter-spacing:.04em; font-weight:600; border-bottom:1px solid var(--line2)}
.note-line{display:none; padding:0 14px 12px}
.note-line.show{display:block}
.note-line input{max-width:560px; font-size:13.5px}
.holiday-banner{display:flex; align-items:center; gap:12px; background:var(--holiday-bg); border:1px solid var(--line);
  border-radius:var(--radius); padding:12px 16px; margin-bottom:16px; font-size:14px; color:var(--ink)}
.holiday-banner b{color:var(--holiday)}
.seg{display:flex; gap:6px}
.seg button{flex:1; padding:8px 4px; border:1px solid var(--line); background:#fff; border-radius:9px; cursor:pointer;
  font-size:12.5px; font-weight:600; color:var(--muted)}
.seg button.sel[data-s=Present]{background:var(--present-bg); color:var(--present); border-color:var(--present)}
.seg button.sel[data-s=Absent]{background:var(--absent-bg); color:var(--absent); border-color:var(--absent)}
.seg button.sel[data-s=Leave]{background:var(--leave-bg); color:var(--leave); border-color:var(--leave)}
.seg button.sel[data-s=Holiday]{background:var(--holiday-bg); color:var(--holiday); border-color:var(--holiday)}
.savebar{position:sticky; bottom:0; background:var(--surface); border-top:1px solid var(--line);
  padding:14px 20px; display:flex; justify-content:space-between; align-items:center; border-radius:0 0 var(--radius) var(--radius)}
.toast{position:fixed; bottom:24px; left:50%; transform:translateX(-50%) translateY(80px);
  background:var(--ink); color:#fff; padding:12px 20px; border-radius:10px; font-weight:600; font-size:14px;
  opacity:0; transition:.28s; z-index:50}
.toast.show{transform:translateX(-50%) translateY(0); opacity:1}

/* login */
.login-wrap{min-height:100vh; display:grid; place-items:center; padding:20px}
.login-card{width:100%; max-width:360px}
.login-card .brand{justify-content:center; font-size:18px; margin-bottom:6px}
.err{background:var(--absent-bg); color:var(--absent); padding:10px 12px; border-radius:9px; font-size:13.5px; font-weight:600; margin-bottom:14px}

.empty{text-align:center; padding:48px 20px; color:var(--muted)}
.empty h3{color:var(--ink); margin-bottom:6px}

@media (max-width:820px){
  .tiles{grid-template-columns:repeat(2,1fr)}
  .mark-row{grid-template-columns:1fr; gap:8px}
  .mark-head{display:none}
  .mark-row .seg{grid-column:1 / -1 !important}
  .nav a{padding:8px 10px}
}