/* =============================================================
   Jewellery Billing - premium responsive theme
   Palette: ivory / charcoal / gold accent
   ============================================================= */
:root{
  --gold:#b8860b; --gold-2:#d4af37; --gold-soft:#f3e6c0;
  --ink:#1f2430; --ink-2:#4a5162; --muted:#8b93a4;
  --line:#e7e3d8; --line-2:#efece3;
  --bg:#f6f3ec; --card:#ffffff; --cream:#fbf9f3;
  --ok:#177245; --ok-bg:#e5f3ea;
  --err:#b3261e; --err-bg:#fbe9e7;
  --info:#1b4f8a; --info-bg:#e8f0fb;
  --due:#b3261e;
  --radius:14px; --radius-sm:9px;
  --shadow:0 1px 2px rgba(31,36,48,.04),0 8px 24px rgba(31,36,48,.06);
  --font:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  --serif:'Fraunces',Georgia,'Times New Roman',serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--gold);text-decoration:none}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:-.01em;margin:0}
h1{font-size:1.7rem}
h3{font-size:1.15rem}
.muted{color:var(--muted)}
.small{font-size:.82rem}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}
.num{text-align:right;font-variant-numeric:tabular-nums}
.link{color:var(--gold);font-weight:600}
.due{color:var(--due);font-weight:600}

/* ---------- Topbar ---------- */
.topbar{background:var(--ink);color:#fff;position:sticky;top:0;z-index:40;box-shadow:0 2px 12px rgba(0,0,0,.12)}
.topbar-inner{max-width:1120px;margin:0 auto;display:flex;align-items:center;gap:16px;padding:12px 18px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700}
.brand-mark{color:var(--gold-2);font-size:1.3rem}
.brand-logo{height:34px;width:34px;object-fit:cover;border-radius:8px;background:#fff}
.brand-name{font-family:var(--serif);font-size:1.15rem;letter-spacing:.01em}
.mainnav{margin-left:auto;display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.mainnav a{color:#d7dae2;padding:8px 12px;border-radius:8px;font-weight:500;font-size:.94rem}
.mainnav a:hover{background:rgba(255,255,255,.08);color:#fff}
.mainnav a.is-active{background:var(--gold);color:#1a1204}
.nav-user{color:var(--gold-soft);font-size:.86rem;padding:0 6px;margin-left:6px;border-left:1px solid rgba(255,255,255,.15)}
.nav-logout{color:#f2c9c4 !important}
.nav-toggle{display:none;margin-left:auto;background:transparent;border:0;color:#fff;font-size:1.5rem;cursor:pointer}

/* ---------- Page ---------- */
.page{max-width:1120px;margin:0 auto;padding:22px 18px 60px}
.pagehead{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.pagehead p{margin:.25rem 0 0}
.foot{border-top:1px solid var(--line);background:var(--cream)}
.foot-inner{max-width:1120px;margin:0 auto;padding:16px 18px;color:var(--muted);font-size:.85rem;text-align:center}

/* ---------- Cards ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:18px}
.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.two-col{display:grid;grid-template-columns:1.6fr 1fr;gap:18px;align-items:start}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:6px;justify-content:center;background:#fff;color:var(--ink);border:1px solid var(--line);
  border-radius:10px;padding:9px 15px;font-size:.92rem;font-weight:600;cursor:pointer;transition:.15s;font-family:var(--font)}
.btn:hover{border-color:var(--gold);color:var(--gold)}
.btn-primary{background:var(--gold);border-color:var(--gold);color:#1a1204}
.btn-primary:hover{background:var(--gold-2);border-color:var(--gold-2);color:#1a1204}
.btn-lg{padding:12px 22px;font-size:1rem}
.btn-sm{padding:5px 10px;font-size:.82rem;border-radius:8px}
.btn-block{width:100%}
.btn-danger{color:var(--err);border-color:#f0cfcb}
.btn-danger:hover{background:var(--err);color:#fff;border-color:var(--err)}
.btn-wa{background:#25d366;border-color:#25d366;color:#04340f}
.btn-wa:hover{background:#1eb457;border-color:#1eb457;color:#04340f}
.btn-add{background:var(--cream);border-style:dashed;color:var(--ink-2);width:100%;margin-top:4px}
.btn-add:hover{border-color:var(--gold);color:var(--gold)}
.inline{display:inline}
.row-actions{display:flex;gap:6px;justify-content:flex-end;flex-wrap:wrap}

/* ---------- Flash ---------- */
.flash{border-radius:10px;padding:11px 14px;margin-bottom:14px;font-size:.92rem;border:1px solid transparent}
.flash-success{background:var(--ok-bg);color:var(--ok);border-color:#bfe3cd}
.flash-error{background:var(--err-bg);color:var(--err);border-color:#f2cdc9}
.flash-info{background:var(--info-bg);color:var(--info);border-color:#cfe0f6}

/* ---------- Tables ---------- */
.table{width:100%;border-collapse:collapse}
.table th{ text-align:left;font-size:.76rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);
  padding:10px 12px;border-bottom:2px solid var(--line)}
.table td{padding:11px 12px;border-bottom:1px solid var(--line-2);vertical-align:middle}
.table tbody tr:hover{background:var(--cream)}
.table tfoot td{border-top:2px solid var(--line);background:var(--cream)}
.pill{font-size:.72rem;font-weight:700;padding:3px 9px;border-radius:20px}
.pill-ok{background:var(--ok-bg);color:var(--ok)}
.pill-off{background:#f0eee9;color:var(--muted)}

/* ---------- Forms ---------- */
label{display:block;font-size:.86rem;font-weight:600;color:var(--ink-2)}
input,select,textarea{width:100%;font-family:var(--font);font-size:.96rem;color:var(--ink);background:#fff;
  border:1px solid var(--line);border-radius:9px;padding:9px 11px;margin-top:5px;transition:.15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px var(--gold-soft)}
input[readonly]{background:var(--cream);color:var(--ink-2)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px}
.form-grid.one{grid-template-columns:1fr}
.form-grid .col-2{grid-column:1/-1}
.form-section{grid-column:1/-1;font-size:1rem;color:var(--gold);border-bottom:1px solid var(--line);padding-bottom:6px;margin-top:6px}
.form-actions{display:flex;gap:10px;margin-top:6px}
.checkline{display:flex;align-items:center;gap:9px;font-weight:500}
.checkline input{width:auto;margin:0}
.hint{font-size:.85rem;color:var(--muted);background:var(--cream);padding:9px 12px;border-radius:8px}
.filters{display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:14px}
.filters input[type=text]{flex:1;min-width:180px;margin-top:0}
.fl{display:flex;align-items:center;gap:6px;font-weight:500;white-space:nowrap}
.fl input{margin-top:0}

/* ---------- Stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow);
  position:relative;overflow:hidden}
.stat::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(var(--gold),var(--gold-2))}
.stat-label{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.stat-value{font-family:var(--serif);font-size:1.55rem;margin-top:4px;color:var(--ink)}
.stat-foot{font-size:.8rem;color:var(--muted);margin-top:2px}

/* ---------- Auth ---------- */
.auth-body{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(1200px 500px at 50% -10%, #fff8e6 0%, var(--bg) 55%);padding:20px}
.auth-card{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);
  padding:30px;width:100%;max-width:400px}
.auth-brand{display:flex;align-items:center;gap:8px;font-family:var(--serif);font-size:1.25rem;color:var(--ink);margin-bottom:18px}
.auth-title{font-size:1.5rem}
.auth-sub{color:var(--muted);margin:.35rem 0 18px}
.auth-form label{margin-bottom:14px;display:block}
.auth-form .btn{margin-top:4px}

/* ---------- Billing screen ---------- */
.items-scroll{overflow-x:auto;margin:0 -4px}
.items-table{width:100%;border-collapse:collapse;min-width:720px}
.items-table th{font-size:.74rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);
  padding:8px 8px;text-align:left;border-bottom:2px solid var(--line)}
.items-table th.num{text-align:right}
.items-table td{padding:5px 6px;border-bottom:1px solid var(--line-2)}
.items-table input,.items-table select{margin-top:0;padding:8px 8px;font-size:.9rem}
.items-table .num input{text-align:right}
.btn-rm{background:transparent;border:0;color:var(--muted);font-size:1.3rem;line-height:1;cursor:pointer;padding:2px 8px;border-radius:6px}
.btn-rm:hover{color:var(--err);background:var(--err-bg)}
.rm-cell{width:40px;text-align:center}

.summary-card{max-width:520px;margin-left:auto}
.summary-grid{display:flex;flex-direction:column;gap:2px}
.sum-line{display:flex;align-items:center;justify-content:space-between;padding:8px 4px;border-bottom:1px dashed var(--line)}
.sum-line span{color:var(--ink-2);font-weight:500}
.sum-line b{font-variant-numeric:tabular-nums}
.sum-line.total b,.sum-line.total span{font-weight:700}
.sum-line.grand{background:var(--cream);border:1px solid var(--gold-soft);border-radius:10px;padding:12px;margin:6px 0}
.sum-line.grand span{font-weight:700;color:var(--ink)}
.sum-line.grand b{font-family:var(--serif);font-size:1.35rem;color:var(--gold)}
.sum-line.balance b{font-family:var(--serif);font-size:1.2rem;color:var(--ink)}
.sum-input{width:150px;text-align:right;margin-top:0}
.mini-input{width:70px;display:inline-block;padding:4px 6px;margin:0 2px;text-align:right}
.input-line input{margin-top:0}
.gst-toggle{display:inline-flex;align-items:center;gap:4px;font-size:.8rem;font-weight:500;color:var(--muted)}
.gst-toggle input{width:auto}
.notes-field{margin-top:12px}

/* ---------- Bill actions ---------- */
.bill-actions{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}

/* ---------- Bill sheet (printable) ---------- */
.bill-preview{display:flex;justify-content:center}
.bill-sheet{background:#fff;width:210mm;max-width:100%;padding:16mm 14mm;border:1px solid var(--line);
  border-radius:8px;box-shadow:var(--shadow);color:#1a1a1a}
.bill-top{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;
  border-bottom:2px solid var(--gold);padding-bottom:12px}
.bill-shop{display:flex;gap:12px;align-items:center}
.bill-logo{height:64px;width:64px;object-fit:contain}
.bill-shop-name{font-family:var(--serif);font-size:1.6rem;color:var(--gold);font-weight:600}
.bill-line{font-size:.85rem;color:#444;margin-top:2px}
.bill-heading-box{text-align:right}
.bill-heading{font-family:var(--serif);font-size:1.15rem;letter-spacing:.08em;color:#333;
  border:1.5px solid #333;padding:5px 14px;border-radius:6px;display:inline-block}
.bill-meta{display:flex;justify-content:space-between;gap:16px;margin:14px 0}
.bill-meta-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:#999}
.bill-cust-name{font-weight:700;font-size:1.05rem;margin-top:2px}
.bill-meta-right div{display:flex;justify-content:space-between;gap:24px;font-size:.9rem;padding:2px 0}
.bill-meta-right span{color:#888}
.bill-items{width:100%;border-collapse:collapse;margin-top:6px}
.bill-items th{background:#faf6ea;font-size:.74rem;text-transform:uppercase;letter-spacing:.03em;color:#7a6a3a;
  padding:8px 8px;border-bottom:1px solid var(--gold-soft);text-align:left}
.bill-items th.c-num{text-align:right}
.bill-items td{padding:8px 8px;border-bottom:1px solid #eee;font-size:.9rem}
.bill-items .c-sr{width:34px;color:#999}
.bill-items .c-num{text-align:right;font-variant-numeric:tabular-nums}
.metal-tag{display:inline-block;font-size:.68rem;font-weight:700;padding:1px 7px;border-radius:20px;margin-left:6px;vertical-align:middle}
.metal-gold{background:#fbf0cf;color:#8a6d0b}
.metal-silver{background:#eceef1;color:#5b6470}
.metal-other{background:#eee9f5;color:#6a5a8a}
.bill-bottom{display:flex;justify-content:space-between;gap:22px;margin-top:16px}
.bill-words{flex:1}
.words{font-style:italic;color:#333;margin-top:3px}
.bill-notes{margin-top:10px;font-size:.85rem;color:#555}
.bill-totals{width:280px}
.bt-line{display:flex;justify-content:space-between;padding:5px 0;font-size:.9rem;border-bottom:1px dashed #eee}
.bt-line span{color:#666}
.bt-grand{border:none;background:#faf6ea;border-radius:8px;padding:9px 12px;margin:6px 0;font-weight:700}
.bt-grand b{font-family:var(--serif);font-size:1.15rem;color:var(--gold)}
.bt-balance{font-weight:700}
.bt-balance b{color:#1a1a1a}
.bill-foot{display:flex;justify-content:space-between;align-items:flex-end;margin-top:26px;padding-top:14px;border-top:1px solid #eee}
.bill-thanks{font-family:var(--serif);color:var(--gold);font-size:1rem}
.bill-sign{text-align:right;font-size:.9rem}
.bill-sign span{color:#999;font-size:.8rem}

/* ---------- Public page ---------- */
.public-body{background:var(--bg);padding:16px}
.public-wrap{max-width:210mm;margin:0 auto}
.public-foot{text-align:center;color:var(--muted);font-size:.8rem;margin-top:16px}

/* ---------- Pager ---------- */
.pager{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:6px}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr}
  .summary-card{max-width:none}
}
@media (max-width:680px){
  .nav-toggle{display:block}
  .mainnav{display:none;position:absolute;top:58px;left:0;right:0;background:var(--ink);flex-direction:column;
    align-items:stretch;padding:8px;gap:2px;box-shadow:0 10px 20px rgba(0,0,0,.2)}
  body.nav-open .mainnav{display:flex}
  .nav-user{border:none;padding-top:8px}
  .form-grid{grid-template-columns:1fr}
  h1{font-size:1.4rem}
  .page{padding:16px 14px 50px}

  /* Stacked item rows on phones */
  .items-table{min-width:0}
  .items-table thead{display:none}
  .items-table,.items-table tbody,.items-table tr,.items-table td{display:block;width:100%}
  .items-table tr.item-row{border:1px solid var(--line);border-radius:12px;padding:10px;margin-bottom:12px;background:var(--cream)}
  .items-table td{border:none;padding:6px 0;display:flex;align-items:center;justify-content:space-between;gap:12px}
  .items-table td::before{content:attr(data-label);font-size:.8rem;font-weight:600;color:var(--ink-2)}
  .items-table td input,.items-table td select{max-width:60%;margin-top:0}
  .items-table .rm-cell{justify-content:flex-end}
  .items-table .rm-cell::before{content:""}
  .sum-input{width:130px}
  .bill-sheet{padding:10mm 7mm}
  .bill-top{flex-direction:column}
  .bill-heading-box{text-align:left}
  .bill-bottom{flex-direction:column}
  .bill-totals{width:100%}
}

/* ---------- Print ---------- */
@media print{
  @page{size:A4;margin:8mm}
  body{background:#fff}
  .topbar,.foot,.no-print,.bill-actions,.pagehead{display:none !important}
  .page,.public-wrap{max-width:none;margin:0;padding:0}
  .bill-preview{display:block}
  .bill-sheet{border:none;box-shadow:none;border-radius:0;width:auto;padding:0}
}