:root{--bg:#f7f2ea;--card:#fff;--ink:#2b2520;--muted:#7a6f66;--line:#e6ddd1;--brand:#5a3a22;--accent:#c8893a;--ok:#2e7d32;--warn:#b26a00;--bad:#b3261e}
*{box-sizing:border-box}html,body{margin:0;height:100%}body{font-family:"Sarabun","Segoe UI",Tahoma,sans-serif;background:var(--bg);color:var(--ink);font-size:16px;-webkit-tap-highlight-color:transparent}
a{color:var(--brand)}nav{background:var(--brand);color:#fff;padding:0 14px;display:flex;flex-wrap:wrap;align-items:center;gap:2px 12px;min-height:48px;font-size:15px}
nav a{color:#fff;text-decoration:none;padding:6px 2px;opacity:.9}nav .brand{font-weight:700;font-size:17px}nav .who{margin-left:auto;font-size:13px;opacity:.9}
main{max-width:1200px;margin:0 auto;padding:14px}h1{font-size:22px;margin:4px 0 12px}h2{font-size:16px;color:var(--brand);margin:14px 0 6px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:14px}.card.wide{overflow-x:auto}.card.narrow{max-width:520px;margin:30px auto}
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.tiles{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));margin-bottom:14px}
.tile{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 12px}.tile .v{font-size:26px;font-weight:700}.tile .l{color:var(--muted);font-size:13px}
table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--muted);font-weight:600;font-size:13px;white-space:nowrap}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}td.act{white-space:nowrap}td form{display:inline-flex;gap:6px;align-items:center;margin:0}
form.f label{display:block;font-size:13px;color:var(--muted);margin:8px 0 2px}form.f input:not([type=checkbox]),form.f select,form.f textarea,td input,td select{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;font-size:16px;background:#fff;font-family:inherit}
td input,td select{width:auto}.row{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}
button,.btn{background:var(--brand);color:#fff;border:0;border-radius:8px;padding:9px 16px;font-size:16px;cursor:pointer;text-decoration:none;display:inline-block;white-space:nowrap;font-family:inherit;line-height:1.2}
.btn.sec,button.sec{background:#fff;color:var(--brand);border:1px solid var(--brand)}.btn.sm,button.sm{padding:5px 10px;font-size:14px}button:disabled{opacity:.5}
.badge{display:inline-block;padding:2px 9px;border-radius:12px;font-size:12px;font-weight:600;color:#fff;background:var(--muted);white-space:nowrap}
.badge.ok,.badge.paid{background:var(--ok)}.badge.warn,.badge.open{background:var(--warn)}.badge.off,.badge.void{background:#999}
.msg{padding:10px 14px;border-radius:8px;margin-bottom:12px}.msg.ok{background:#e6f4ea;color:var(--ok)}.msg.err{background:#fde8e6;color:var(--bad)}.msg ul{margin:6px 0 0;padding-left:20px}
code,.mono{font-family:Consolas,monospace}code{background:#f1ece5;padding:1px 5px;border-radius:4px}code.big{font-size:18px;padding:6px 10px;display:inline-block;user-select:all}
.muted{color:var(--muted)}input.bad,select.bad{border-color:var(--bad)!important;background:#fff5f4!important}.req{color:var(--bad)}
.hours{display:flex;gap:2px;align-items:flex-end;height:80px}.hours div{flex:1;text-align:center;font-size:10px;color:var(--muted)}.hours i{display:block;background:var(--accent);border-radius:2px 2px 0 0;min-height:1px}
/* login */
.login .staffgrid{display:grid;gap:8px;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));margin:12px 0}
.staffbtn{background:#fff;color:var(--ink);border:2px solid var(--line);padding:12px 6px;display:flex;flex-direction:column;gap:2px;font-size:16px}.staffbtn small{color:var(--muted);font-size:12px}.staffbtn.on{border-color:var(--accent);background:#fdf6ec}
.pinbox{text-align:center;position:relative}.pindots{font-size:30px;letter-spacing:8px;margin:8px 0}.pad{display:grid;gap:8px;grid-template-columns:repeat(3,1fr);max-width:300px;margin:0 auto}
.pad button{font-size:24px;padding:14px 0;background:#fff;color:var(--ink);border:1px solid var(--line)}.pad button.go{background:var(--brand);color:#fff}
/* POS sale screen */
.pos{display:grid;grid-template-columns:1fr 380px;height:calc(100vh - 48px);overflow:hidden}
.pos .menu{overflow:auto;padding:10px;display:flex;flex-direction:column;gap:10px}
.cats{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px}.cats button{background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:20px;padding:8px 14px;font-size:15px;flex:none}.cats button.on{background:var(--brand);color:#fff;border-color:var(--brand)}
.items{display:grid;gap:8px;grid-template-columns:repeat(auto-fill,minmax(130px,1fr))}
.item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px;min-height:92px;display:flex;flex-direction:column;justify-content:space-between;cursor:pointer;position:relative;overflow:hidden;color:var(--ink);text-align:left;font-size:15px}
.item img{width:100%;height:70px;object-fit:cover;border-radius:8px;margin-bottom:6px}.item .nm{font-weight:600;line-height:1.25}.item .pr{color:var(--brand);font-weight:700}.item.out{opacity:.45}.item.out::after{content:"หมด";position:absolute;top:6px;right:6px;background:var(--bad);color:#fff;font-size:11px;padding:1px 6px;border-radius:8px}
.cart{background:#fff;border-left:1px solid var(--line);display:flex;flex-direction:column;height:100%}
.cart .hd{padding:10px 12px;border-bottom:1px solid var(--line);display:flex;gap:8px;align-items:center;font-size:14px;flex-wrap:wrap}.cart .hd select,.cart .hd input{padding:6px 8px;border:1px solid var(--line);border-radius:8px;font-size:14px;font-family:inherit}
.cart .lines{flex:1;overflow:auto;padding:4px 12px}.ln{display:flex;gap:8px;padding:8px 0;border-bottom:1px dashed var(--line);align-items:flex-start}.ln .q{display:flex;align-items:center;gap:4px}.ln .q button{padding:2px 9px;font-size:16px;background:#f1ece5;color:var(--ink)}
.ln .d{flex:1}.ln .d small{display:block;color:var(--muted);font-size:12px}.ln .t{font-weight:600;white-space:nowrap}
.cart .ft{border-top:1px solid var(--line);padding:10px 12px;font-size:15px}.cart .ft .r{display:flex;justify-content:space-between;padding:2px 0}.cart .ft .tot{font-size:26px;font-weight:800;color:var(--brand)}
.cart .acts{display:grid;gap:8px;grid-template-columns:1fr 1fr;margin-top:8px}.cart .acts .pay{grid-column:1/-1;font-size:20px;padding:14px}
.topbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:13px;color:var(--muted)}.topbar .sp{flex:1}.topbar button{padding:6px 10px;font-size:13px}
/* modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.45);display:none;align-items:center;justify-content:center;padding:12px;z-index:50}.modal.on{display:flex}
.modal .box{background:#fff;border-radius:16px;width:min(560px,100%);max-height:94vh;overflow:auto;padding:16px 18px}.modal h3{margin:0 0 10px;font-size:19px}
.optgrp{margin:10px 0}.optgrp .gn{font-size:13px;color:var(--muted);margin-bottom:4px}.optgrp .gn b{color:var(--bad)}.opts{display:flex;flex-wrap:wrap;gap:6px}
.opts button{background:#fff;color:var(--ink);border:2px solid var(--line);border-radius:20px;padding:8px 14px;font-size:15px}.opts button.on{border-color:var(--brand);background:#fdf6ec;color:var(--brand);font-weight:600}
.qtyrow{display:flex;align-items:center;gap:10px;font-size:20px;margin:10px 0}.qtyrow button{font-size:22px;padding:4px 16px;background:#f1ece5;color:var(--ink)}
.mrow{display:flex;gap:8px;margin-top:12px}.mrow button{flex:1;padding:14px;font-size:18px}
.paymeth{display:grid;gap:8px;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));margin:8px 0}.paymeth button{background:#fff;color:var(--ink);border:2px solid var(--line);padding:12px 6px;font-size:16px}.paymeth button.on{border-color:var(--brand);background:#fdf6ec;color:var(--brand);font-weight:700}
.quick{display:flex;flex-wrap:wrap;gap:6px}.quick button{background:#f1ece5;color:var(--ink);padding:8px 12px}
.bigin{font-size:28px;text-align:right;width:100%;padding:10px;border:2px solid var(--line);border-radius:10px;font-family:inherit}
.qrbox{text-align:center;padding:10px}.qrbox canvas,.qrbox img{max-width:260px;width:100%}.qrbox .amt{font-size:28px;font-weight:800;color:var(--brand)}
.done{text-align:center;padding:10px}.done .chg{font-size:40px;font-weight:800;color:var(--ok)}.done .q{font-size:60px;font-weight:800;color:var(--brand);line-height:1}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:#2b2520;color:#fff;padding:10px 18px;border-radius:24px;font-size:15px;z-index:60;display:none}.toast.on{display:block}
.held{display:flex;flex-direction:column;gap:6px}.held button{background:#fff;color:var(--ink);border:1px solid var(--line);text-align:left;display:flex;justify-content:space-between}
@media (max-width:900px){.pos{grid-template-columns:1fr;height:auto}.cart{border-left:0;border-top:1px solid var(--line);height:auto}.cart .lines{max-height:30vh}.pos .menu{padding:8px}.items{grid-template-columns:repeat(auto-fill,minmax(110px,1fr))}.item{min-height:80px;font-size:14px}.item img{height:56px}
 nav .who{display:none}.cartfab{position:fixed;right:14px;bottom:14px;z-index:40;border-radius:30px;padding:14px 20px;font-size:18px;box-shadow:0 4px 14px rgba(0,0,0,.25)}.cart{position:fixed;inset:0;top:48px;z-index:45;display:none;flex-direction:column}.cart.on{display:flex}.cart .lines{max-height:none}}
@media (min-width:901px){.cartfab,.cart .closecart{display:none}}