/* System fonts only: Google Fonts is unreachable from mainland China. */
:root{
  /* design 5 "green trade", with the container colours of design 6 */
  --bg:#eef3ef; --surface:#ffffff; --ink:#13261b; --muted:#56695d; --line:#d3dfd6;
  --steel:#1d5c3a; --steel-soft:#dbe7de; --signal:#2357d9; --signal-ink:#ffffff;
  --cargo:#ef4444; --cargo-2:#f87171; --hull:#94a3b8; --hull-in:#eef2f8;
  --good:#1d5c3a; --warn:#b5531c; --gold:#c9a227;
  --r:16px;
  --f-body:"Segoe UI",system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans Arabic",Tahoma,sans-serif;
  --f-num:ui-monospace,"SF Mono",Consolas,"Roboto Mono",monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root{
  --bg:#0e1712; --surface:#16231b; --ink:#e3efe6; --muted:#97ab9d; --line:#26382d;
  --steel:#6fcf97; --steel-soft:#1c3226; --signal:#7aa2ff; --signal-ink:#0b1430;
  --cargo:#f05252; --cargo-2:#f87171; --hull:#7b8aa0; --hull-in:#1a2430;
  --good:#6fcf97; --warn:#ef8a4f; --gold:#dcb94a; color-scheme:dark }}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.55;
  padding-top:env(safe-area-inset-top,0px)}
[hidden]{display:none!important}
.wrap{max-width:720px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:14px 120px;display:flex;flex-direction:column;gap:16px}
header.top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;flex-wrap:wrap}
h1{font-size:1.45rem;margin:0;font-weight:700;text-wrap:balance;color:var(--steel)}
h2{font-size:1.08rem;margin:0;font-weight:700}
.sub{color:var(--muted);font-size:.85rem;margin:2px 0 0}
.chips{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.chip{font-size:.75rem;padding:4px 10px;border-radius:99px;background:var(--steel-soft);color:var(--steel);white-space:nowrap}
.chip.off{background:color-mix(in srgb,var(--warn) 18%,transparent);color:var(--warn)}
.langs{display:flex;border:1px solid var(--line);border-radius:99px;overflow:hidden;background:var(--surface)}
.langs button{border:0;background:transparent;font:inherit;font-size:.8rem;padding:5px 11px;color:var(--muted);cursor:pointer;min-width:36px}
.langs button[aria-pressed=true]{background:var(--steel);color:var(--surface);font-weight:600}
.num{font-family:var(--f-num);font-variant-numeric:tabular-nums;direction:ltr;unicode-bidi:isolate}
.view{display:flex;flex-direction:column;gap:16px}

.panel{background:var(--surface);border:0;border-radius:var(--r);padding:16px;display:flex;flex-direction:column;gap:12px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.grid .full{grid-column:1/-1}
label{display:flex;flex-direction:column;gap:4px;font-size:.82rem;color:var(--muted);min-width:0}
.tip{font-size:.72rem;color:var(--muted)}
input,select{font:inherit;font-size:16px;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:10px;width:100%;min-width:0}
input[type=number]{font-family:var(--f-num);direction:ltr;text-align:end}
input:focus-visible,select:focus-visible,button:focus-visible,a:focus-visible{outline:2px solid var(--signal);outline-offset:2px}
.seg{display:flex;background:var(--steel-soft);border:0;border-radius:var(--r);padding:4px;gap:3px;flex-wrap:wrap}
.seg button{flex:1;border:0;background:transparent;font:inherit;padding:9px;border-radius:12px;color:var(--muted);cursor:pointer;white-space:nowrap}
.seg button[aria-pressed=true]{background:var(--steel);color:var(--surface);font-weight:600}
.dims{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.dims label{font-size:.75rem}
.opt{border:1px dashed var(--line);border-radius:10px;padding:12px;display:flex;flex-direction:column;gap:10px}
.sw{flex-direction:row;align-items:center;gap:10px;color:var(--ink);font-size:.9rem;font-weight:500;cursor:pointer}
.sw input{width:20px;height:20px;accent-color:var(--steel);flex-shrink:0}

.btn{font:inherit;font-size:.9rem;border:1px solid var(--line);background:transparent;color:var(--ink);border-radius:12px;padding:9px 14px;cursor:pointer;text-decoration:none;text-align:center}
.btn.primary{background:var(--steel);border-color:var(--steel);color:var(--surface);font-weight:600}
.btn.fill{background:var(--gold);border-color:var(--gold);color:#13261b;font-weight:700}
.btn.danger{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 45%,transparent)}
.btn.big{padding:13px;font-size:1rem;width:100%}
.btn.sm{padding:5px 10px;font-size:.8rem;white-space:nowrap}
.btn:disabled{opacity:.5;cursor:default}
.row{display:flex;gap:8px;flex-wrap:wrap}
.row>.btn{flex:1}
.link{background:none;border:0;color:var(--steel);font:inherit;cursor:pointer;text-decoration:underline;padding:4px}
.err{color:var(--warn);font-size:.85rem;margin:0}

.rate{display:flex;align-items:center;gap:12px;background:var(--surface);border:0;border-radius:var(--r);padding:14px 16px}
.rate .cur{font-size:1.4rem;font-weight:700;min-width:52px;height:52px;padding:0 6px;border-radius:12px;background:var(--steel-soft);color:var(--steel);display:grid;place-items:center;flex-shrink:0}
.rate label{flex:1}
.rate input{font-size:1.3rem;padding:11px}

.result{background:var(--steel);color:var(--surface);border-radius:var(--r);padding:16px 18px;display:flex;flex-direction:column;gap:10px}
.result .big{font-family:var(--f-num);font-size:2.1rem;line-height:1.15;direction:ltr;text-align:end;overflow-wrap:anywhere}
.result small{opacity:.85;font-size:.8rem}
.lines{display:flex;flex-direction:column;gap:4px;font-size:.88rem}
.lines span{display:flex;justify-content:space-between;gap:10px;border-bottom:1px dashed color-mix(in srgb,var(--surface) 30%,transparent);padding-bottom:3px}
.lines b{font-family:var(--f-num);font-weight:500;direction:ltr;unicode-bidi:isolate}

.saved{display:flex;flex-direction:column;gap:8px}
.sv{display:flex;justify-content:space-between;align-items:center;gap:10px;background:var(--surface);border:0;border-radius:var(--r);padding:10px 12px;cursor:pointer;font:inherit;color:var(--ink);text-align:start;width:100%}
.sv b{font-family:var(--f-num);color:var(--steel);direction:ltr;white-space:nowrap}
.sv .nm{min-width:0;overflow-wrap:anywhere}

/* container drawing: always drawn left-to-right, doors on the right */
.ctr-wrap{display:flex;flex-direction:column;gap:6px;direction:ltr}
.ctr{position:relative;height:150px;border:3px solid var(--hull);border-radius:10px;background:
  repeating-linear-gradient(90deg,var(--hull-in) 0 10px,color-mix(in srgb,var(--hull) 22%,var(--hull-in)) 10px 13px);overflow:hidden}
.ctr::before{content:"";position:absolute;top:0;bottom:0;left:0;width:14px;background:var(--hull);z-index:3}
.ctr .doors{position:absolute;top:0;bottom:0;right:0;width:26px;background:repeating-linear-gradient(0deg,var(--hull) 0 4px,color-mix(in srgb,var(--hull) 70%,#000) 4px 6px);z-index:3}
.cargo{position:absolute;top:0;bottom:0;left:14px;right:26px;display:flex}
.seg-c{height:100%;transition:width .5s ease;position:relative;border-right:2px solid color-mix(in srgb,#fff 55%,transparent);
  background:repeating-linear-gradient(0deg,var(--cargo) 0 22px,color-mix(in srgb,var(--cargo) 82%,#000) 22px 24px);overflow:hidden}
.seg-c:nth-child(even){background:repeating-linear-gradient(0deg,var(--cargo-2) 0 22px,color-mix(in srgb,var(--cargo-2) 82%,#000) 22px 24px)}
.seg-c span{position:absolute;left:4px;right:4px;bottom:6px;color:#fff;font-size:.72rem;font-weight:600;text-shadow:0 1px 2px rgba(0,0,0,.6);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:center}
.limit{position:absolute;top:0;bottom:0;border-left:2px dashed var(--signal);z-index:2}
.limit i{position:absolute;top:2px;right:4px;font-style:normal;font-size:.65rem;color:var(--signal-ink);background:var(--signal);padding:0 4px;border-radius:3px;white-space:nowrap}
.ctr.over{border-color:var(--cargo)}
.ruler{position:relative;height:22px;margin:0 30px 0 18px;border-top:1px solid var(--muted);
  background:repeating-linear-gradient(90deg,var(--muted) 0 1px,transparent 1px var(--m))}
.ruler span{position:absolute;top:6px;white-space:nowrap;font-family:var(--f-num);font-size:.68rem;color:var(--muted);transform:translateX(-50%)}
.ruler .mark{position:absolute;top:-6px;width:2px;height:14px;background:var(--cargo);transition:left .5s ease}
.bigstats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.bs{background:var(--surface);border:0;border-radius:var(--r);padding:10px;min-width:0}
.bs small{display:block;font-size:.72rem;color:var(--muted)}
.bs b{font-family:var(--f-num);font-size:1.05rem;direction:ltr;display:inline-block;overflow-wrap:anywhere}
.bs.used b{color:var(--cargo)} .bs.free b{color:var(--good)}
.meter{height:6px;border-radius:99px;background:var(--steel-soft);overflow:hidden;margin-top:6px}
.meter i{display:block;height:100%;background:var(--steel);transition:width .5s ease}
#kgBox.over b{color:var(--cargo)} #kgBox.over .meter i{background:var(--cargo)}
.explain{font-size:.88rem;background:var(--steel-soft);border-radius:14px;padding:10px 12px;margin:0}
.explain.over{background:color-mix(in srgb,var(--cargo) 15%,transparent);color:var(--cargo);font-weight:600}

.line{background:var(--surface);border:0;border-radius:var(--r);padding:12px 14px;display:flex;flex-direction:column;gap:8px}
.line-top{display:flex;justify-content:space-between;gap:10px;align-items:center;flex-wrap:wrap}
.line-top h3{margin:0;font-size:1rem;font-weight:600;min-width:0;overflow-wrap:anywhere;display:flex;align-items:center;gap:8px}
.dot{width:12px;height:12px;border-radius:3px;background:var(--cargo);flex-shrink:0}
.line:nth-child(even) .dot{background:var(--cargo-2)}
.stepper{display:flex;align-items:center;gap:6px;direction:ltr}
.stepper button{width:40px;height:40px;border-radius:99px;border:0;background:var(--steel-soft);font-size:1.2rem;color:var(--ink);cursor:pointer}
.stepper input{width:84px;text-align:center}
.meta{font-size:.8rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:4px 14px}
.meta b{font-family:var(--f-num);color:var(--ink);font-weight:500}
.empty{text-align:center;color:var(--muted);padding:22px 12px;border:1.5px dashed var(--line);border-radius:var(--r)}

/* settings tables */
.curs{display:flex;flex-direction:column;gap:8px}
.curow{display:grid;grid-template-columns:72px 64px minmax(0,1fr) auto;gap:8px;align-items:center}
.curow input{padding:8px}
.table{overflow-x:auto}
.table table{border-collapse:collapse;width:100%;font-size:.82rem;min-width:520px}
.table th,.table td{padding:8px 6px;border-bottom:1px solid var(--line);text-align:start;vertical-align:middle}
.table th{color:var(--muted);font-weight:600}
.pill{font-size:.72rem;padding:2px 8px;border-radius:99px;background:var(--steel-soft);color:var(--steel);white-space:nowrap}
.pill.warn{background:color-mix(in srgb,var(--warn) 16%,transparent);color:var(--warn)}
.pill.good{background:color-mix(in srgb,var(--good) 16%,transparent);color:var(--good)}

/* invoices */
.sv.inv{align-items:flex-start}
.sv .ttl{display:block;color:var(--ink);font-family:var(--f-body)}
fieldset.lock{border:0;margin:0;padding:0;min-width:0;display:flex;flex-direction:column;gap:16px}
fieldset.lock:disabled{opacity:.75}
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:4px}
.steps button{font:inherit;font-size:.72rem;border:0;border-radius:10px;padding:8px 2px;background:var(--steel-soft);color:var(--muted);cursor:pointer;line-height:1.25}
.steps button.done{background:color-mix(in srgb,var(--steel) 22%,var(--steel-soft));color:var(--ink)}
.steps button[aria-pressed=true]{background:var(--steel);color:var(--surface);font-weight:700}
.ph textarea{font-size:13px;padding:6px}
.shopthumb{width:52px;height:52px;border-radius:12px;object-fit:cover;flex-shrink:0;background:var(--bg)}
.photos{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:8px}
.ph{display:flex;flex-direction:column;gap:4px}
.ph img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:8px;border:1px solid var(--line);background:var(--bg)}
textarea{font:inherit;font-size:16px;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:10px;width:100%;resize:vertical}
.obcur{display:flex;flex-direction:column;gap:6px;padding:6px 0;border-bottom:1px solid var(--line)}
.obcur:last-child{border-bottom:0}
/* auth */
.auth{max-width:420px;margin:0 auto;width:100%}
.hero{background:var(--steel);color:var(--surface);border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:8px}
.hero h1{font-size:1.8rem}
.hero .mini{height:46px;border:3px solid color-mix(in srgb,var(--surface) 70%,transparent);border-radius:3px;position:relative;overflow:hidden;direction:ltr}
.hero .mini i{position:absolute;top:0;bottom:0;left:0;width:62%;background:repeating-linear-gradient(0deg,var(--cargo) 0 10px,color-mix(in srgb,var(--cargo) 80%,#000) 10px 11px)}
.plans{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.plan{border:1.5px solid var(--line);border-radius:10px;padding:10px;background:var(--surface);display:flex;flex-direction:column;gap:2px;font:inherit;color:var(--ink);text-align:start;cursor:pointer}
.plan b{font-size:1.15rem;font-family:var(--f-num)}
.plan[aria-pressed=true]{border-color:var(--steel);box-shadow:inset 0 0 0 1px var(--steel)}
.payto{background:var(--steel-soft);border-radius:10px;padding:10px 12px;font-size:.9rem;white-space:pre-wrap;overflow-wrap:anywhere}

.tabs{position:fixed;left:0;right:0;bottom:0;background:var(--surface);border-top:0;border-radius:20px 20px 0 0;box-shadow:0 -4px 18px rgba(19,38,27,.06);z-index:10;
  padding-bottom:env(safe-area-inset-bottom,0px);padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px)}
.tabs nav{max-width:720px;margin:0 auto;display:grid;grid-template-columns:repeat(6,1fr)}
.tabs a{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 2px 9px;color:var(--muted);text-decoration:none;font-size:.7rem;border-top:3px solid transparent;text-align:center;line-height:1.2}
.tabs a svg{width:22px;height:22px}
.tabs a[aria-current=page]{color:var(--steel);border-top-color:var(--steel);font-weight:600}
.tabs a.ctr-tab[aria-current=page]{color:var(--steel);border-top-color:var(--steel)}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(80px + env(safe-area-inset-bottom,0px));background:var(--ink);color:var(--bg);padding:8px 16px;border-radius:99px;font-size:.85rem;z-index:30}
@media print{
  body{background:#fff;color:#000;padding:0}
  .tabs,.no-print,header.top .chips,.link,.explain{display:none!important}
  .panel{border:0;padding:0}
  .table table{min-width:0;font-size:11px}
}
@media (prefers-reduced-motion:reduce){.seg-c,.ruler .mark{transition:none}}