/* K&D Payroll — shared UI styles. Plain, flat, system fonts, no external dependencies. */
:root{
  --brand:#0f3b64; --brand-hover:#0b2e4e; --brand-soft:#e8eff6;
  --ink:#1b2733; --muted:#5d6b7a; --line:#d9dfe6; --line-soft:#eceff3;
  --bg:#f4f6f8; --surface:#fff;
  --ok:#17663f; --ok-bg:#e9f5ee; --warn:#7a5a0d; --warn-bg:#fdf6e3; --warn-line:#e6cf8f;
  --err:#a12b2b; --err-bg:#fceeee; --err-line:#e8b9b9; --info-bg:#eaf2fa; --info-line:#bcd3ea;
  --radius:6px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
h1{font-size:22px;line-height:1.25;margin:0 0 4px;font-weight:650}
h2{font-size:16px;margin:0;font-weight:650}
p{margin:0}
a{color:var(--brand)}
a:hover{color:var(--brand-hover)}
:focus-visible{outline:2px solid #2a6fb5;outline-offset:2px}
.muted{color:var(--muted)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
[hidden]{display:none!important}

/* Top bar */
.topbar{background:var(--brand);color:#fff}
.topbar-in{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:24px;min-height:52px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:700;letter-spacing:.2px}
.brand img{width:28px;height:28px;border-radius:4px;object-fit:cover;background:#fff}
.nav{display:flex;gap:2px;flex:1;flex-wrap:wrap}
.nav a{color:#d3e1ee;text-decoration:none;padding:15px 12px;font-weight:500;border-bottom:3px solid transparent}
.nav a:hover{color:#fff}
.nav a[aria-current="page"]{color:#fff;border-bottom-color:#fff}
.user{display:flex;align-items:center;gap:12px;color:#d3e1ee;font-size:13px}
.user a{color:#fff}

/* Page */
.page{max-width:1200px;margin:0 auto;padding:24px 20px 40px}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.page-head p{color:var(--muted)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.card-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:14px 16px;border-bottom:1px solid var(--line)}
.card-body{padding:16px}
.stack>*+*{margin-top:16px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:36px;padding:7px 14px;border:1px solid var(--brand);border-radius:var(--radius);background:var(--brand);color:#fff;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{background:var(--brand-hover);color:#fff}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.55;cursor:not-allowed}
.btn.secondary{background:#fff;color:var(--brand);border-color:#aebccb}
.btn.secondary:hover{background:var(--brand-soft)}
.btn.danger{background:#fff;color:var(--err);border-color:#d9a8a8}
.btn.danger:hover{background:var(--err-bg)}
.btn.danger-solid{background:var(--err);border-color:var(--err)}
.btn.small{min-height:30px;padding:4px 10px;font-size:13px}
.btn-row{display:flex;gap:8px;flex-wrap:wrap}

/* Forms */
.field{display:flex;flex-direction:column;gap:4px;min-width:0}
.field label{font-weight:600;font-size:13px}
.field .hint{font-size:12px;color:var(--muted)}
input,select,textarea{width:100%;min-height:38px;padding:8px 10px;border:1px solid #b9c4cf;border-radius:var(--radius);background:#fff;color:var(--ink);font:inherit}
input:focus,select:focus{outline:2px solid #2a6fb5;outline-offset:0;border-color:#2a6fb5}
input[type=number]{text-align:right}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.form-grid .full{grid-column:1/-1}
.req{color:var(--err)}

/* Alerts */
.alert{padding:10px 12px;border:1px solid var(--info-line);background:var(--info-bg);border-radius:var(--radius)}
.alert.ok{background:var(--ok-bg);border-color:#b7dcc6;color:var(--ok)}
.alert.warn{background:var(--warn-bg);border-color:var(--warn-line);color:var(--warn)}
.alert.err{background:var(--err-bg);border-color:var(--err-line);color:var(--err)}
.alert ul{margin:6px 0 0 18px;padding:0}
.alert strong{font-weight:650}

/* Tables */
.table-wrap{overflow:auto;max-width:100%}
table.data{width:100%;border-collapse:collapse}
table.data th,table.data td{padding:10px 12px;border-bottom:1px solid var(--line-soft);text-align:left;vertical-align:middle}
table.data thead th{position:sticky;top:0;background:#f6f8fa;color:#44535f;font-size:12px;font-weight:650;text-transform:uppercase;letter-spacing:.3px;border-bottom:1px solid var(--line);white-space:nowrap}
table.data tbody tr:hover{background:#fafbfc}
table.data .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
table.data .actions{text-align:right;white-space:nowrap}
.empty{padding:36px 16px;text-align:center;color:var(--muted)}

/* Status pill */
.status{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px;font-weight:600;background:#eef1f4;color:#44535f;white-space:nowrap}
.status.ok{background:var(--ok-bg);color:var(--ok)}
.status.err{background:var(--err-bg);color:var(--err)}
.status.busy{background:var(--info-bg);color:#1d4f80}

/* Dialog */
dialog{border:1px solid var(--line);border-radius:8px;padding:0;width:min(560px,calc(100vw - 24px));max-height:calc(100vh - 24px);color:var(--ink)}
dialog::backdrop{background:rgba(15,30,45,.45)}
dialog form{display:flex;flex-direction:column;max-height:calc(100vh - 24px)}
.dlg-head{padding:14px 18px;border-bottom:1px solid var(--line)}
.dlg-body{padding:18px;overflow:auto}
.dlg-foot{padding:12px 18px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px;background:#f8f9fb}

/* Auth pages */
.auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.auth-box{width:min(400px,100%);background:#fff;border:1px solid var(--line);border-radius:8px;padding:28px}
.auth-box .brand-line{display:flex;align-items:center;gap:10px;margin-bottom:18px;color:var(--brand);font-weight:700}
.auth-box .brand-line img{width:32px;height:32px;border-radius:4px;object-fit:cover}
.auth-box h1{margin-bottom:6px}
.auth-box form{margin-top:18px;display:flex;flex-direction:column;gap:14px}
.auth-box .btn{width:100%}
.auth-foot{margin-top:16px;font-size:13px}

/* Generator */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.step{padding:16px}
.step-no{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:var(--brand);color:#fff;font-size:12px;font-weight:700;margin-right:8px}
.step h2{display:flex;align-items:center;margin-bottom:6px}
.step p{color:var(--muted);margin-bottom:12px}
.dropzone{border:1px dashed #8fa3b5;border-radius:var(--radius);background:#fafbfc;padding:22px 14px;text-align:center;cursor:pointer}
.dropzone:hover,.dropzone.drag-over{background:var(--brand-soft);border-color:var(--brand)}
.dropzone.disabled{opacity:.55;cursor:not-allowed}
.dropzone strong{display:block;margin-bottom:2px}
.dropzone .file-name{margin-top:8px;font-weight:600;word-break:break-all}
.progress{height:8px;background:#e3e8ed;border-radius:4px;overflow:hidden}
.progress>div{height:100%;width:0;background:var(--brand);transition:width .2s}
.summary{display:flex;gap:28px;flex-wrap:wrap}
.summary div span{display:block;font-size:12px;color:var(--muted)}
.summary div strong{font-size:20px;font-variant-numeric:tabular-nums}

@media (max-width:820px){
  .steps{grid-template-columns:1fr}
  .topbar-in{gap:8px}
  .nav{order:3;flex-basis:100%;margin:0 -8px}
  .nav a{padding:10px 10px}
}
@media (max-width:560px){
  .form-grid{grid-template-columns:1fr}
  .page{padding:16px 12px 32px}
  .card-body{padding:12px}
  .page-head .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}