/* Giao diện kiểu phần mềm bán hàng quen dùng (thanh menu màu, thẻ trắng), màu theo nhận diện FULA: navy #082A52, xanh #006B4F, nhấn #9ACB34, ivory #F7F4EA */
:root{--navy:#082A52;--green:#006B4F;--lime:#9ACB34;--ivory:#F7F4EA;--bg:#f3f5f4;--card:#fff;--ink:#14202a;--muted:#5f6c75;--line:#dde3e6;--accent:#006B4F;--soft:#e3f1ec;--warn:#8a5a00;--warn-soft:#fbf1dc;--bad:#b42318;--bad-soft:#fdecea}
@media (prefers-color-scheme:dark){:root{--bg:#0e1519;--card:#162027;--ink:#e6ecef;--muted:#93a1aa;--line:#26323a;--accent:#7fd1b4;--soft:#123a2f;--warn:#e0b25a;--warn-soft:#3a2e14;--bad:#f08a80;--bad-soft:#3a1a17}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
/* thanh trên */
header.top{background:var(--card);border-bottom:1px solid var(--line)}
.bar{max-width:1280px;margin:0 auto;padding:8px 16px;display:flex;align-items:center;gap:14px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;color:var(--navy);letter-spacing:.04em}.logo i{width:26px;height:26px;border-radius:8px;background:var(--green);display:inline-block;position:relative}
.logo i:after{content:"";position:absolute;right:4px;top:4px;width:8px;height:8px;border-radius:50%;background:var(--lime)}
@media(prefers-color-scheme:dark){.logo{color:var(--ink)}}
.sp{flex:1}.who{font-size:13px;color:var(--muted)}
.tim{flex:0 1 420px}.tim input{background:var(--bg);border-radius:99px}
/* thanh menu màu */
nav.menu{background:var(--green);color:#fff}
nav.menu .in{max-width:1280px;margin:0 auto;padding:0 10px;display:flex;align-items:stretch;gap:2px;flex-wrap:wrap}
nav.menu .m{position:relative}
nav.menu .m>a,nav.menu .m>span{display:block;padding:12px 14px;color:#fff;font-weight:700;font-size:14.5px;cursor:pointer;text-decoration:none}
nav.menu .m:hover>a,nav.menu .m:hover>span,nav.menu .m>a.on{background:var(--navy)}
nav.menu .dd{display:none;position:absolute;left:0;top:100%;background:var(--card);color:var(--ink);min-width:210px;border-radius:0 0 10px 10px;box-shadow:0 10px 24px rgba(0,0,0,.22);z-index:20;padding:6px 0}
nav.menu .m:hover .dd,nav.menu .m.open .dd{display:block}
nav.menu .dd a{display:block;padding:9px 16px;color:var(--ink);font-weight:500;text-decoration:none}nav.menu .dd a:hover{background:var(--soft);color:var(--accent)}
.btn-ban{margin:6px 0 6px auto;background:var(--lime);color:var(--navy)!important;font-weight:800;border-radius:10px;padding:0 18px!important;display:flex!important;align-items:center}
.btn-ban:hover{background:#b3dd55!important}
main{max-width:1280px;margin:0 auto;padding:16px 16px 70px}
h1{font-size:22px;margin:4px 0 14px;color:var(--navy)}h2{font-size:17px;margin:18px 0 8px;color:var(--navy)}
@media(prefers-color-scheme:dark){h1,h2{color:var(--ink)}}
.card{background:var(--card);border-radius:12px;padding:14px;margin-bottom:14px;box-shadow:0 1px 3px rgba(0,0,0,.07)}
.grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}
.so{background:var(--card);border-radius:12px;padding:12px 14px;display:block;color:var(--ink)}.so b{display:block;font-size:22px;color:var(--green)}.so span{color:var(--muted);font-size:13px}
table{width:100%;border-collapse:collapse;font-size:14px}th,td{padding:8px 8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:#eaf3ef;color:var(--navy);font-weight:700;font-size:13px;position:sticky;top:0}
@media(prefers-color-scheme:dark){th{background:#173a30;color:var(--ink)}}
tr:hover td{background:rgba(0,107,79,.05)}td.r,th.r{text-align:right}.scroll{overflow-x:auto}
input,select,textarea{font:inherit;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:8px;padding:9px 12px;width:100%;min-height:42px}
input:focus,select:focus,textarea:focus{outline:2px solid var(--lime);border-color:var(--green)}
textarea{min-height:70px}label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 16px;border-radius:8px;border:1px solid var(--green);background:var(--green);color:#fff;font-weight:700;cursor:pointer;font-size:15px;text-decoration:none}
.btn:hover{background:#00583f;text-decoration:none}.btn.alt{background:var(--card);color:var(--green)}.btn.alt:hover{background:var(--soft)}
.btn.bad{background:var(--bad-soft);color:var(--bad);border-color:var(--bad)}.btn.sm{min-height:34px;padding:0 12px;font-size:13px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:end}.row>*{flex:1;min-width:140px}.row>.fit{flex:0 0 auto;min-width:0}
.tag{display:inline-block;font-size:12px;font-weight:700;border-radius:99px;padding:2px 9px;background:var(--soft);color:var(--accent)}
.tag.w{background:var(--warn-soft);color:var(--warn)}.tag.b{background:var(--bad-soft);color:var(--bad)}.tag.m{background:var(--bg);color:var(--muted)}
.loi{background:var(--bad-soft);color:var(--bad);border-radius:10px;padding:10px 12px;margin-bottom:12px}
.muted{color:var(--muted)}.right{text-align:right}
.dong{display:grid;gap:6px;grid-template-columns:1fr;padding:10px;border:1px solid var(--line);border-radius:10px;margin-bottom:8px}
@media(min-width:720px){.dong{grid-template-columns:3fr 1.2fr .9fr 1.2fr .7fr auto;align-items:end}}
.goiy{position:relative}.goiy .ds{position:absolute;z-index:30;left:0;right:0;background:var(--card);border:1px solid var(--line);border-radius:10px;max-height:340px;overflow:auto;box-shadow:0 10px 24px rgba(0,0,0,.2)}
.goiy .ds div{padding:9px 12px;border-bottom:1px solid var(--line);cursor:pointer;display:flex;gap:10px;justify-content:space-between}.goiy .ds div:hover,.goiy .ds div.on{background:var(--soft)}
.goiy .ds small{color:var(--muted)}
.login{max-width:380px;margin:12vh auto;padding:0 14px}
/* màn Bán hàng (POS) */
.pos{display:grid;gap:14px;grid-template-columns:1fr}@media(min-width:900px){.pos{grid-template-columns:1fr 360px}}
.pos .bill{position:sticky;top:8px;align-self:start}.pos table input{min-height:34px;padding:4px 8px}
.tong{display:flex;justify-content:space-between;font-size:15px;padding:6px 0}.tong.lon{font-size:22px;font-weight:800;color:var(--green);border-top:1px solid var(--line);margin-top:6px;padding-top:10px}
.chon{display:flex;gap:8px;flex-wrap:wrap}.chon label{margin:0;display:flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:8px;padding:8px 12px;cursor:pointer;color:var(--ink)}.chon input{width:auto;min-height:0}
.nho{font-size:12px}