:root{
  --brand:#4b3fa8;
  --brand-d:#3a3086;
  --brand-l:#eeecfb;
  --in:#1f8a5b;
  --in-l:#e3f4ec;
  --out:#d0532b;
  --out-l:#fcebe4;
  --adj:#2f6fb5;
  --adj-l:#e5eef9;
  --warn:#b7791f;
  --warn-l:#fdf3dc;
  --xl:#1d7044;
  --ink:#1e2130;
  --ink-2:#4d5266;
  --ink-3:#8a8fa3;
  --line:#e4e6ee;
  --bg:#f4f5f9;
  --card:#ffffff;
  --stage:#e9e7f3;
  --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:"Noto Sans JP",system-ui,-apple-system,"Hiragino Sans",sans-serif;
  color:var(--ink);background:var(--stage);
  -webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;
}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
[hidden]{display:none!important}

/* ===== stage (PC) ===== */
.stage{
  min-height:100vh;display:flex;align-items:flex-start;justify-content:center;
  gap:56px;padding:32px 24px;
  background:radial-gradient(1200px 600px at 10% 0%,#f6f4ff 0,transparent 60%),var(--stage);
}
.side{max-width:440px;flex:1 1 380px}
.side-eyebrow{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.06em}
.side-title{font-size:28px;line-height:1.45;margin:8px 0 14px;font-weight:700}
.side-lead{font-size:14.5px;line-height:1.85;color:var(--ink-2);margin-bottom:20px}
.side-card{background:#fff;border-radius:var(--r);padding:16px 18px;margin-bottom:14px;box-shadow:0 1px 3px rgba(30,33,48,.06)}
.side-card h2{font-size:14px;margin-bottom:10px}
.side-qr-row{display:flex;gap:14px;align-items:center}
.side-qr-row p{font-size:12.5px;line-height:1.75;color:var(--ink-2)}
.qr{flex:0 0 104px;width:104px;height:104px;padding:6px;background:#fff;border:1px solid var(--line);border-radius:8px}
.qr img,.qr canvas{width:100%!important;height:auto!important;display:block}
.side-note{font-size:12px;color:var(--ink-3);margin-bottom:10px;line-height:1.6}
.test-codes{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.test-code{border:1px solid var(--line);border-radius:10px;padding:8px 6px 6px;text-align:center}
.test-code svg{width:100%;height:auto;display:block}
.test-code span{display:block;font-size:11px;color:var(--ink-2);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-points{list-style:none;margin:16px 0 12px}
.side-points li{font-size:13px;line-height:1.7;padding:6px 0 6px 18px;position:relative;color:var(--ink-2)}
.side-points li::before{content:"";position:absolute;left:2px;top:14px;width:7px;height:7px;border-radius:50%;background:var(--brand)}
.side-points b{color:var(--ink)}
.side-foot{font-size:11.5px;color:var(--ink-3);line-height:1.7}

.phone{
  flex:0 0 auto;width:390px;height:min(820px,calc(100vh - 64px));min-height:640px;position:sticky;top:32px;
  border-radius:44px;padding:12px;background:#15161d;
  box-shadow:0 30px 60px -20px rgba(40,30,90,.35),0 0 0 1px #2a2b35 inset;
}
.app{
  position:relative;height:100%;border-radius:34px;overflow:hidden;background:var(--bg);
  display:flex;flex-direction:column;
}

/* ===== mobile ===== */
@media (max-width:900px){
  body{background:var(--bg)}
  .stage{display:block;padding:0;min-height:0;background:var(--bg)}
  .side{display:none}
  .phone{width:100%;height:100dvh;min-height:0;border-radius:0;padding:0;background:none;box-shadow:none}
  .app{border-radius:0}
}

/* ===== appbar ===== */
.appbar{
  flex:0 0 auto;display:flex;align-items:center;gap:8px;
  padding:16px 16px 12px;padding-top:max(16px,env(safe-area-inset-top));
  background:var(--brand);color:#fff;position:relative;z-index:5;
}
.appbar-back{color:#fff;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;margin-left:-6px}
.appbar-back:active{background:rgba(255,255,255,.15)}
.appbar-text{flex:1;display:flex;flex-direction:column;min-width:0}
.appbar-sub{font-size:11px;opacity:.75;letter-spacing:.04em}
.appbar-title{font-size:18px;font-weight:700;line-height:1.3}
.appbar-user{font-size:12px;background:rgba(255,255,255,.18);padding:4px 10px;border-radius:99px}

/* ===== screens ===== */
.screens{flex:1;overflow:hidden;position:relative}
.screen{position:absolute;inset:0;overflow-y:auto;padding:16px 16px 24px;display:none;-webkit-overflow-scrolling:touch}
.screen.active{display:block;animation:fade .18s ease}
@keyframes fade{from{opacity:.4;transform:translateY(4px)}to{opacity:1;transform:none}}

.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:14px}
.kpi{background:var(--card);border-radius:12px;padding:10px 10px 8px;display:flex;flex-wrap:wrap;align-items:baseline;gap:2px}
.kpi-label{width:100%;font-size:11px;color:var(--ink-3)}
.kpi-num{font-size:22px;font-weight:700;font-family:"Roboto Mono",monospace;letter-spacing:-.02em}
.kpi-unit{font-size:11px;color:var(--ink-3)}

.big-actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:20px}
.big-btn{border-radius:16px;padding:14px 6px 12px;display:flex;flex-direction:column;align-items:center;gap:4px;font-weight:700;font-size:16px;transition:transform .1s}
.big-btn small{font-size:10.5px;font-weight:500;opacity:.8}
.big-btn:active{transform:scale(.97)}
.big-btn.in{background:var(--in);color:#fff}
.big-btn.out{background:var(--out);color:#fff}
.big-btn.adj{background:#fff;color:var(--adj);box-shadow:inset 0 0 0 1.5px var(--adj-l)}

.sec-h{font-size:14px;font-weight:700;margin:4px 2px 8px;display:flex;align-items:center;gap:6px}
.badge-count{font-size:11px;background:var(--out);color:#fff;border-radius:99px;padding:1px 7px;font-family:"Roboto Mono",monospace}

.alert-list{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}
.alert{display:flex;gap:10px;align-items:center;background:var(--card);border-radius:12px;padding:10px 12px;text-align:left;width:100%}
.alert-dot{flex:0 0 8px;height:8px;border-radius:50%}
.alert.low .alert-dot{background:var(--out)}
.alert.exp .alert-dot{background:var(--warn)}
.alert-body{flex:1;min-width:0;display:block}
.alert-title,.alert-sub{display:block}
.alert-title{font-size:13.5px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.alert-sub{font-size:11.5px;color:var(--ink-3)}
.alert-tag{font-size:11px;font-weight:700;padding:2px 8px;border-radius:99px;white-space:nowrap}
.alert.low .alert-tag{background:var(--out-l);color:var(--out)}
.alert.exp .alert-tag{background:var(--warn-l);color:var(--warn)}
.empty{font-size:13px;color:var(--ink-3);text-align:center;padding:18px 0}

.tx-list{display:flex;flex-direction:column;gap:6px}
.tx{display:flex;gap:10px;align-items:center;background:var(--card);border-radius:12px;padding:10px 12px}
.tx-type{flex:0 0 40px;height:40px;border-radius:10px;display:grid;place-items:center;font-size:12px;font-weight:700}
.tx-type.in{background:var(--in-l);color:var(--in)}
.tx-type.out{background:var(--out-l);color:var(--out)}
.tx-type.adjust{background:var(--adj-l);color:var(--adj)}
.tx-body{flex:1;min-width:0}
.tx-name{font-size:13.5px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tx-sub{font-size:11.5px;color:var(--ink-3)}
.tx-qty{font-family:"Roboto Mono",monospace;font-size:15px;font-weight:500;text-align:right;white-space:nowrap}
.tx-qty.in{color:var(--in)}.tx-qty.out{color:var(--out)}.tx-qty.adjust{color:var(--adj)}
.tx-qty small{display:block;font-size:10.5px;color:var(--ink-3);font-family:"Noto Sans JP",sans-serif;font-weight:400}
.grouped .day{font-size:12px;font-weight:700;color:var(--ink-2);margin:12px 2px 2px}
.grouped .day:first-child{margin-top:4px}

/* ===== scan ===== */
.seg{display:flex;background:#e4e3ef;border-radius:12px;padding:3px;margin-bottom:14px}
.seg button{flex:1;padding:8px 0;border-radius:9px;font-size:14px;font-weight:500;color:var(--ink-2)}
.seg button.on{background:#fff;color:var(--ink);font-weight:700;box-shadow:0 1px 3px rgba(0,0,0,.08)}
#modeSeg button.on[data-mode="in"]{color:var(--in)}
#modeSeg button.on[data-mode="out"]{color:var(--out)}
#modeSeg button.on[data-mode="adjust"]{color:var(--adj)}

.scan-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;background:var(--brand);color:#fff;font-weight:700;font-size:15px;border-radius:14px;padding:18px 12px;box-shadow:0 6px 16px -6px rgba(75,63,168,.6)}
.scan-btn:active{background:var(--brand-d)}
.jan-form{margin:14px 0 10px}
.jan-form label{font-size:12px;color:var(--ink-3);display:block;margin-bottom:6px}
.jan-row{display:flex;gap:8px}
.jan-row input{flex:1;min-width:0;border:1.5px solid var(--line);background:#fff;border-radius:12px;padding:11px 12px;font-family:"Roboto Mono",monospace;font-size:16px;letter-spacing:.04em}
.jan-row input:focus{outline:none;border-color:var(--brand)}
.jan-row button{background:var(--ink);color:#fff;border-radius:12px;padding:0 16px;font-weight:700;font-size:14px}
.try-row{display:flex;align-items:flex-start;gap:6px;font-size:12px;color:var(--ink-3);margin-bottom:14px}
.try-row>span{padding-top:5px;white-space:nowrap}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips.scroll{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;margin:0 -16px 10px;padding-left:16px;padding-right:16px;scrollbar-width:none}
.chips.scroll::-webkit-scrollbar{display:none}
.chip{font-size:12px;padding:5px 11px;border-radius:99px;background:#fff;border:1px solid var(--line);color:var(--ink-2);white-space:nowrap}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}

.product-panel{background:var(--card);border-radius:16px;padding:16px;box-shadow:0 2px 10px rgba(30,33,48,.06);animation:fade .2s ease}
.pp-head{display:flex;gap:12px;align-items:center;margin-bottom:14px}
.thumb{flex:0 0 52px;height:52px;border-radius:12px;display:grid;place-items:center;font-weight:700;font-size:20px;color:#fff}
.pp-name{font-size:15.5px;font-weight:700;line-height:1.4}
.pp-jan{font-family:"Roboto Mono",monospace;font-size:12px;color:var(--ink-3)}
.pp-stock{display:flex;justify-content:space-between;align-items:center;background:var(--bg);border-radius:12px;padding:10px 12px;margin-bottom:14px;font-size:13px;color:var(--ink-2)}
.pp-stock b{font-family:"Roboto Mono",monospace;font-size:20px;color:var(--ink)}
.field{margin-bottom:12px}
.field>label{display:block;font-size:12px;color:var(--ink-3);margin-bottom:6px}
.field input,.field select{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:10px 12px;background:#fff;font-size:15px}
.field input:focus,.field select:focus{outline:none;border-color:var(--brand)}
.stepper{display:flex;align-items:center;gap:8px}
.stepper button{flex:0 0 46px;height:46px;border-radius:12px;background:var(--bg);font-size:22px;font-weight:700;color:var(--ink-2)}
.stepper input{flex:1;text-align:center;font-family:"Roboto Mono",monospace;font-size:22px!important;font-weight:500;padding:8px!important}
.quick{display:flex;gap:6px;margin-top:8px}
.quick button{flex:1;font-size:12px;padding:6px 0;border-radius:8px;background:var(--bg);color:var(--ink-2)}
.after{font-size:12.5px;color:var(--ink-2);text-align:center;margin:4px 0 12px}
.after b{font-family:"Roboto Mono",monospace;font-size:15px}
.after.neg b{color:var(--out)}
.submit{width:100%;border-radius:14px;padding:15px;font-weight:700;font-size:16px;color:#fff}
.submit.in{background:var(--in)}.submit.out{background:var(--out)}.submit.adjust{background:var(--adj)}
.submit:disabled{opacity:.45}

/* ===== stock ===== */
.search{display:flex;align-items:center;gap:8px;background:#fff;border:1.5px solid var(--line);border-radius:12px;padding:0 12px;margin-bottom:10px;color:var(--ink-3)}
.search input{flex:1;border:0;outline:0;padding:11px 0;font-size:15px;background:none;min-width:0}
.stock-sum{font-size:12px;color:var(--ink-3);margin:2px 2px 8px}
.stock-list{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.stock-item{display:flex;gap:12px;align-items:center;background:var(--card);border-radius:12px;padding:10px 12px;text-align:left;width:100%}
.stock-item .thumb{flex-basis:42px;height:42px;font-size:16px;border-radius:10px}
.si-body{flex:1;min-width:0}
.si-name{font-size:13.5px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.si-sub{font-size:11px;color:var(--ink-3);font-family:"Roboto Mono",monospace}
.si-qty{text-align:right}
.si-qty b{font-family:"Roboto Mono",monospace;font-size:18px;display:block;line-height:1.2}
.si-qty .st{font-size:10.5px;font-weight:700;padding:1px 7px;border-radius:99px}
.st.ok{background:var(--in-l);color:var(--in)}
.st.low{background:var(--out-l);color:var(--out)}
.st.zero{background:var(--ink);color:#fff}
.ghost-btn{display:block;width:100%;text-align:center;border:1.5px dashed #c9c6e4;color:var(--brand);font-weight:700;font-size:14px;border-radius:14px;padding:13px;background:#fff;cursor:pointer}
.primary-btn{display:block;width:100%;background:var(--xl);color:#fff;font-weight:700;font-size:15px;border-radius:14px;padding:14px;margin-bottom:22px}
.link-btn{display:block;margin:10px auto 22px;font-size:13px;color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.link-btn.danger{color:var(--ink-3);margin-top:22px}

/* detail */
.d-head{display:flex;gap:12px;align-items:center;background:#fff;border-radius:16px;padding:14px;margin-bottom:10px}
.d-head .thumb{flex-basis:56px;height:56px}
.d-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px}
.d-cell{background:#fff;border-radius:12px;padding:10px 12px}
.d-cell span{display:block;font-size:11px;color:var(--ink-3)}
.d-cell b{font-size:16px;font-family:"Roboto Mono",monospace}
.d-cell b.t{font-family:"Noto Sans JP",sans-serif;font-size:14px}
.d-actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px;margin-bottom:18px}
.d-actions button{border-radius:12px;padding:10px 0;font-weight:700;font-size:13.5px}
.d-actions .in{background:var(--in-l);color:var(--in)}
.d-actions .out{background:var(--out-l);color:var(--out)}
.d-actions .adjust{background:var(--adj-l);color:var(--adj)}

/* excel */
.xl-card{display:flex;gap:12px;align-items:flex-start;margin-bottom:12px}
.xl-icon{flex:0 0 40px;height:40px;border-radius:10px;background:var(--xl);color:#fff;font-weight:700;display:grid;place-items:center;font-size:18px}
.xl-icon.in{background:var(--brand)}
.xl-card h3{font-size:15px;margin-bottom:2px}
.xl-card p{font-size:12.5px;line-height:1.65;color:var(--ink-2)}
.ghost-btn.file{border-style:solid;border-color:var(--brand-l)}
.info-box{background:var(--brand-l);border-radius:14px;padding:14px 16px;margin-bottom:22px}
.info-box h3{font-size:13.5px;color:var(--brand-d);margin-bottom:6px}
.info-box ul{padding-left:1.1em}
.info-box li{font-size:12.5px;line-height:1.75;color:var(--ink-2);margin-bottom:4px}

/* ===== tabbar ===== */
.tabbar{
  flex:0 0 auto;display:grid;grid-template-columns:repeat(5,1fr);
  background:#fff;border-top:1px solid var(--line);
  padding:6px 4px;padding-bottom:max(8px,env(safe-area-inset-bottom));position:relative;z-index:5;
}
.tabbar button{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:10.5px;color:var(--ink-3);padding:4px 0}
.tabbar svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.tabbar button.on{color:var(--brand);font-weight:700}

/* ===== camera ===== */
.cam{position:absolute;inset:0;background:#000;z-index:30;display:flex;flex-direction:column}
.cam-top{display:flex;justify-content:space-between;align-items:center;color:#fff;padding:18px 16px 12px;padding-top:max(18px,env(safe-area-inset-top));font-size:14px}
.cam-top button{color:#fff;font-size:28px;line-height:1;width:40px;height:40px}
.reader{flex:1;display:flex;align-items:center;justify-content:center;overflow:hidden}
.reader video{width:100%!important;height:auto!important;object-fit:cover}
.cam-msg{color:#ddd;font-size:13px;text-align:center;padding:14px 20px 28px;line-height:1.7}

/* ===== sheet ===== */
.sheet-wrap{position:absolute;inset:0;background:rgba(20,20,35,.45);z-index:20;display:flex;align-items:flex-end}
.sheet{width:100%;max-height:88%;overflow-y:auto;background:#fff;border-radius:20px 20px 0 0;padding:20px 16px;padding-bottom:max(20px,env(safe-area-inset-bottom));animation:up .2s ease}
@keyframes up{from{transform:translateY(30%)}to{transform:none}}
.sheet h3{font-size:16px;margin-bottom:4px}
.sheet .sheet-sub{font-size:12.5px;color:var(--ink-3);margin-bottom:14px;line-height:1.6}
.sheet-btns{display:flex;gap:8px;margin-top:6px}
.sheet-btns button{flex:1;border-radius:12px;padding:13px;font-weight:700}
.sheet-btns .cancel{background:var(--bg);color:var(--ink-2)}
.sheet-btns .ok{background:var(--brand);color:#fff}

/* ===== toast ===== */
.toast{position:absolute;left:16px;right:16px;bottom:82px;z-index:40;background:var(--ink);color:#fff;border-radius:12px;padding:12px 14px;font-size:13.5px;line-height:1.5;opacity:0;transform:translateY(10px);transition:.2s;pointer-events:none}
.toast.show{opacity:1;transform:none}
.toast.ok{background:var(--in)}
.toast.err{background:var(--out)}