:root{
    --bg:#f4f6f9; --card:#fff; --ink:#1f2937; --muted:#6b7280;
    --line:#e5e7eb; --brand:#2563eb; --brand-d:#1d4ed8;
    --green:#16a34a; --green-bg:#dcfce7; --yellow-bg:#fef9c3;
    --danger:#dc2626; --radius:10px;
}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",Tahoma,"Sarabun",sans-serif;background:var(--bg);color:var(--ink);font-size:14px;line-height:1.5}
.wrap{max-width:1180px;margin:0 auto;padding:16px}
h1{font-size:20px;margin:0}
h2{font-size:16px;margin:0 0 12px}
a{color:var(--brand);text-decoration:none}
.muted{color:var(--muted)}
.small{font-size:12px}
.c{text-align:center}.r{text-align:right}

/* topbar */
.topbar{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px}
.btns{display:flex;gap:8px}

/* card */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin:16px 0;box-shadow:0 1px 2px rgba(0,0,0,.03)}

/* buttons */
.btn{display:inline-block;padding:8px 14px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;font-size:14px;color:var(--ink);transition:.15s}
.btn:hover{background:#f3f4f6}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-d)}
.btn-danger{color:var(--danger);border-color:#fecaca}
.btn-danger:hover{background:#fef2f2}
.btn-sm{padding:4px 9px;font-size:12px}
.btn-lg{padding:11px 22px;font-size:15px}
.btn-accent{background:var(--green);border-color:var(--green);color:#fff}
.btn-accent:hover{background:#15803d}

/* auto-generated code field (read-only) */
input.auto-code{background:#f1f5f9;color:var(--muted);font-style:italic;cursor:not-allowed}

/* section headers */
.sec-head{display:flex;align-items:center;justify-content:space-between;margin:0 0 4px}
.sec-head h2{margin:0}

/* form grid */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.grid.recipe{grid-template-columns:repeat(4,1fr)}
.grid .col-2{grid-column:span 2}

/* BOM chip / recipe tags */
.bom-chip{font-size:15px;padding:10px 12px;background:#f8fafc;border:1px solid var(--line);border-radius:8px}
.recipe-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.tag{font-size:12px;background:#eff6ff;color:var(--brand-d);border-radius:6px;padding:4px 9px}
.tag.warn{background:var(--yellow-bg);color:#92400e}
.fill-qty{display:flex;gap:6px}
.fill-qty input{flex:1}

/* search */
.searchbar{display:flex;gap:8px;margin:0 0 16px}
.searchbar input{flex:1;max-width:420px}
label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}
input{padding:8px 10px;border:1px solid var(--line);border-radius:7px;font-size:14px;font-family:inherit;color:var(--ink)}
select{padding:8px 10px;border:1px solid var(--line);border-radius:7px;font-size:14px;font-family:inherit;color:var(--ink);background:#fff}
input:focus,select:focus{outline:2px solid var(--brand);outline-offset:-1px;border-color:var(--brand)}
input.num,input.pct{text-align:right}
.pct-warn{margin:12px 0 0;font-size:13px;color:var(--muted)}
.pct-warn.bad{color:var(--danger);font-weight:600}

/* tables */
.table-scroll{overflow-x:auto}
table{border-collapse:collapse;width:100%}
.list th,.list td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}
.list thead th{background:#f9fafb;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.02em}
.list tbody tr:hover{background:#f9fafb}
.actions{white-space:nowrap;display:flex;gap:6px}

.parts th,.parts td{padding:6px;border:1px solid var(--line);font-size:13px}
.parts thead th{background:#f9fafb;color:var(--muted);font-weight:600;white-space:nowrap}
.parts th.calc{background:#eff6ff}
.parts input{width:100%;min-width:70px;padding:6px 7px}
.parts input[name="name[]"]{min-width:150px}
.parts .out-total,.parts .out-piece,.parts .out-a,.parts .out-b,.parts .out-c,.parts .out-ret{background:#f8fafc;font-variant-numeric:tabular-nums;color:#334155}
.parts tfoot .totals td{background:#eff6ff;font-variant-numeric:tabular-nums;padding:9px 6px}

/* summary box */
.summary{background:linear-gradient(180deg,#fff, #fbfdff)}
.sum-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.sum-item{background:#f8fafc;border:1px solid var(--line);border-radius:8px;padding:14px;display:flex;flex-direction:column;gap:6px}
.sum-item .lbl{font-size:12px;color:var(--muted)}
.sum-item .val{font-size:22px;font-weight:700;font-variant-numeric:tabular-nums}
.sum-item .val::after{content:" กก.";font-size:12px;color:var(--muted);font-weight:400}
.sum-item.hl{background:var(--yellow-bg);border-color:#fde68a}

.form-actions{display:flex;gap:10px;align-items:center;margin:18px 0 40px}
.empty{text-align:center;padding:40px}
.foot{text-align:center;padding:20px;font-size:12px}

/* setup */
.setup-log{list-style:none;padding:0}
.setup-log li{padding:6px 0;border-bottom:1px dashed var(--line)}
.ok{color:var(--green);font-weight:600}
.err{color:var(--danger);font-weight:600}

/* ===== print sheet (job_view) ===== */
.sheet{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);margin-top:16px;padding:24px}
.sheet-brand{display:flex;align-items:baseline;justify-content:space-between;border-bottom:2px solid var(--ink);margin-bottom:16px;padding-bottom:8px}
.sheet-brand .sheet-title{border:none;padding:0;margin:0;text-align:left}
.sheet-meta{font-size:12px;color:var(--muted)}
.sheet-title{text-align:center;font-size:18px;margin:0 0 16px;padding-bottom:10px;border-bottom:2px solid var(--ink)}
.sheet-head{display:grid;grid-template-columns:repeat(4,auto);gap:8px 28px;margin-bottom:16px;font-size:14px}
.sheet-head .lbl{color:var(--muted)}
.sheet-table th,.sheet-table td{border:1px solid #cbd5e1;padding:7px 9px;font-size:13px;font-variant-numeric:tabular-nums}
.sheet-table thead th{background:#e2e8f0;text-align:center;font-size:12px}
.sheet-table tfoot .g-gram td{background:var(--yellow-bg);font-weight:600}
.sheet-table tfoot .g-kg td{background:var(--green-bg);font-weight:700}
.sheet-summary{max-width:520px;margin:20px 0 0 auto}
.ss-row{display:flex;justify-content:space-between;padding:8px 12px;border-bottom:1px solid var(--line)}
.ss-row b{font-variant-numeric:tabular-nums}
.ss-row.hl{background:var(--yellow-bg);font-weight:700;border-radius:6px}

/* material request — item blocks */
.mr-item{border-left:4px solid var(--brand)}
.mr-item-head{display:flex;align-items:center;justify-content:space-between;margin:0 0 12px}
.mr-item-head h2{margin:0}
.mr-item-actions{display:flex;align-items:center;gap:12px;margin-top:12px;flex-wrap:wrap}
.line-kg{font-variant-numeric:tabular-nums}
.mr-line-block{margin:0 0 18px}
.mr-line-title{padding:8px 10px;background:#f1f5f9;border:1px solid var(--line);border-radius:8px 8px 0 0;font-size:14px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.mr-line-title .tag{background:#eff6ff;color:var(--brand-d)}
.ss-title{font-size:15px;margin:0 0 8px}

/* signature row (material request) */
.sign-row{display:flex;gap:40px;margin:48px 8px 8px;justify-content:space-between}
.sign-box{flex:1;text-align:center;font-size:13px;color:var(--muted)}
.sign-line{border-top:1px dotted #94a3b8;margin:0 8px 8px;height:40px}

@media print{
    body{background:#fff;font-size:12px}
    .no-print{display:none!important}
    .sheet{border:none;padding:0;margin:0}
    .wrap{max-width:none;padding:0}
    .sheet-table th,.sheet-table td{padding:4px 6px}
}
@media(max-width:820px){
    .grid,.grid.recipe,.sum-grid{grid-template-columns:repeat(2,1fr)}
    .sheet-head{grid-template-columns:1fr 1fr}
}