:root{
  --bg:#0f3a49;
  --tab:#2b3aa7;
  --tabActive:#9fe6f3;
  --text:#ffffff;
  --muted:#cdd6da;
  --card:#2a2a2a;
  --line:#d9d9d9;
  --orange:#f58b2a;
  --green:#18b04b;
}

*{box-sizing:border-box;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
body{margin:0;color:var(--text)}
.bg{background:var(--bg);min-height:100vh}
.container{padding:26px 28px;max-width:1100px;margin:0 auto}

.topbar{
  display:flex;align-items:center;gap:12px;
  padding:10px 14px;background:transparent;
}
.tabs{display:flex;gap:8px;align-items:center}
.tab,.notify{
  display:inline-block;padding:10px 14px;
  background:var(--tab);color:#000;text-decoration:none;font-weight:800;
  font-size:34px;line-height:1;border-radius:0;
}
.tab.active,.notify.active{background:var(--tabActive)}
.seller{margin-left:14px;font-size:22px;font-weight:700}
.notify{margin-left:auto}
.logout{color:#fff;text-decoration:none;font-size:26px;padding:6px 10px}

.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center}
.login-card{
  width:min(520px,92vw);
  background:#1f1f1f;border:1px solid rgba(255,255,255,.08);
  padding:22px;border-radius:4px;
}
.login-title{font-size:18px;margin-bottom:14px;color:#ddd}
.alert{background:#401b1b;padding:10px;border-radius:4px;margin-bottom:12px}

.input{
  width:100%;padding:16px 14px;border-radius:3px;border:1px solid rgba(255,255,255,.08);
  background:#3a3a3a;color:#fff;margin:10px 0;font-size:16px;
}
.input.wide{max-width:780px}
.btn{
  border:0;border-radius:4px;padding:14px 18px;font-weight:800;cursor:pointer;
  color:#fff;font-size:16px;
}
.btn.w100{width:100%}
.btn.primary{background:#2f89ff}
.btn.orange{background:var(--orange)}
.btn.small{padding:10px 14px;font-size:14px}

.divider{height:3px;background:var(--line);margin:16px 0;opacity:.85}

.prices .bcv-line{font-size:14px;opacity:.95;margin-top:10px}
.product-title{font-size:34px;font-weight:900;text-align:center;margin:18px 0 6px}
.product-variation{font-size:22px;font-weight:800;text-align:center;margin-bottom:18px;opacity:.9}
.big-price{font-size:160px;font-weight:900;text-align:center;letter-spacing:2px;margin:0}
.sub-price{font-size:42px;text-align:center;opacity:.85;margin-top:-12px}

.search-row{display:flex;gap:14px;align-items:center;margin:22px 0}
.search-row .input{margin:0}
.history-head{display:flex;align-items:center;gap:14px;margin-top:18px}
.h-title{font-weight:900;font-size:18px}

.table{margin-top:10px;border-top:1px solid rgba(255,255,255,.12)}
.t-row{display:grid;grid-template-columns: 1.5fr .7fr .5fr .6fr;gap:10px;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.t-head{font-weight:900;opacity:.95}
.t-foot{font-weight:900}
.right{text-align:right}

.sales .section-title{font-size:44px;font-weight:900;margin-top:16px}
.sale-row{display:grid;grid-template-columns: .7fr 1fr .6fr .1fr;gap:10px;align-items:center;padding:8px 0;border-bottom:2px solid rgba(255,255,255,.14)}
.sale-time{font-size:22px;font-weight:800}
.sale-amt{font-size:40px;font-weight:900;text-align:right}
.xbtn{width:28px;height:28px;border-radius:50%;background:#e32020;display:flex;align-items:center;justify-content:center;cursor:pointer}
.xbtn:before{content:"✖";font-size:16px}

.total-row{display:flex;justify-content:space-between;align-items:center;margin-top:16px}
.total-text{font-size:40px;font-weight:900}
.nav-prev{text-align:center;margin-top:120px;font-size:22px;font-weight:900;cursor:pointer;opacity:.9}

.add-row{display:flex;gap:14px;align-items:center}
.add-row .input{margin:0}

.task-row{display:grid;grid-template-columns: 1fr .4fr;gap:10px;align-items:center;padding:14px 0;border-bottom:2px solid rgba(255,255,255,.14)}
.task-text{font-size:26px;font-weight:900}
.task-date{font-size:24px;font-weight:900;text-align:right}
.done-btn{justify-self:end;background:var(--green);padding:10px 16px;border-radius:6px;font-weight:900;cursor:pointer}