/* ---------- tokens ---------- */
:root{
  --bg:#f6f7f5; --surface:#fff; --surface-2:#f0f2ee; --line:#e2e5df;
  --ink:#12201c; --ink-2:#5d6b66; --ink-3:#8b9995;
  --accent:#0f766e; --accent-ink:#fff; --accent-soft:#dcefec;
  --warn-bg:#fdf3e3; --warn-ink:#8a5a10; --warn-line:#f0d9b0;
  --err-bg:#fdecec; --err-ink:#9b2226; --err-line:#f3caca;
  --r:14px; --r-sm:9px;
  --shadow:0 1px 2px rgba(16,32,28,.05), 0 8px 24px -12px rgba(16,32,28,.18);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
}
:root[data-theme="dark"]{
  --bg:#0e1513; --surface:#17201d; --surface-2:#1e2926; --line:#2b3733;
  --ink:#e8efec; --ink-2:#9fb0ab; --ink-3:#75857f;
  --accent:#2dd4bf; --accent-ink:#04211d; --accent-soft:#173733;
  --warn-bg:#2e2410; --warn-ink:#e8c07d; --warn-line:#4a3a17;
  --err-bg:#331a1b; --err-ink:#f2a3a5; --err-line:#5a2a2c;
  --shadow:0 1px 2px rgba(0,0,0,.3), 0 8px 24px -12px rgba(0,0,0,.6);
}
*{box-sizing:border-box}
html,body{margin:0}
body{
  background:var(--bg); color:var(--ink);
  font:15px/1.6 system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.hidden{display:none !important}
.muted{color:var(--ink-3)}
.center{text-align:center}
code{font-family:var(--mono);font-size:.9em;background:var(--surface-2);padding:1px 5px;border-radius:5px}

/* ---------- topbar ---------- */
.topbar{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:9px;color:var(--accent);text-decoration:none;font-weight:700;font-size:19px;letter-spacing:-.01em}
.brand span{color:var(--ink)}
.topbar-actions{display:flex;gap:8px}
.ghost-btn{display:inline-flex;align-items:center;gap:6px;background:transparent;border:1px solid var(--line);color:var(--ink-2);
  padding:7px 11px;border-radius:var(--r-sm);font:inherit;font-size:13.5px;cursor:pointer;transition:.15s}
.ghost-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}
.ghost-btn.sm{padding:4px 9px;font-size:12.5px}
:root[data-theme="light"] .ico-moon,:root[data-theme="dark"] .ico-sun{display:none}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 366px;gap:22px;align-items:start;padding-top:26px;padding-bottom:26px}
@media(max-width:900px){.layout{grid-template-columns:1fr}.col-preview{order:-1}}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:18px;margin-bottom:16px}

/* ---------- tabs ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.tab{background:var(--surface-2);border:1px solid transparent;color:var(--ink-2);padding:7px 13px;border-radius:99px;
  font:inherit;font-size:13.5px;cursor:pointer;transition:.15s}
.tab:hover{color:var(--ink)}
.tab.is-on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:600}

/* ---------- fields ---------- */
.fld{display:block;margin-bottom:13px}
.fld>span{display:block;font-size:12.5px;font-weight:600;color:var(--ink-2);margin-bottom:6px;letter-spacing:.01em}
.fld>span b{color:var(--accent);font-weight:700}
input[type=text],input[type=tel],input[type=email],textarea,select{
  width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);color:var(--ink);font:inherit;font-size:14px;transition:.15s}
textarea{resize:vertical;min-height:64px;font-family:var(--mono);font-size:13px;line-height:1.55}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
input[type=color]{width:100%;height:38px;padding:3px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);cursor:pointer}
input[type=range]{width:100%;accent-color:var(--accent)}
input[type=file]{width:100%;font-size:12.5px;color:var(--ink-2)}
input[type=file]::file-selector-button{background:var(--surface-2);border:1px solid var(--line);color:var(--ink-2);
  padding:6px 10px;border-radius:7px;font:inherit;font-size:12.5px;cursor:pointer;margin-right:9px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:11px}
.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:11px}
.chk{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2);margin-bottom:11px;cursor:pointer}
.chk input{accent-color:var(--accent);width:16px;height:16px}
.file-row{display:flex;gap:9px;align-items:center;flex-wrap:wrap}
.file-row select{width:auto;min-width:88px}
.hint{font-size:12.5px;color:var(--ink-3);line-height:1.55;margin:6px 0 0}
.alert{font-size:12.5px;line-height:1.5;margin:10px 0 0;padding:9px 11px;border-radius:var(--r-sm);
  background:var(--err-bg);color:var(--err-ink);border:1px solid var(--err-line)}
.alert.warn{background:var(--warn-bg);color:var(--warn-ink);border-color:var(--warn-line)}

/* ---------- segmented ---------- */
.seg{display:flex;gap:5px}
.seg button{flex:1;background:var(--surface-2);border:1px solid transparent;color:var(--ink-2);
  padding:8px 4px;border-radius:var(--r-sm);font:inherit;font-size:12.5px;cursor:pointer;transition:.15s}
.seg button:hover{color:var(--ink)}
.seg button.is-on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:600}

/* ---------- capacity ---------- */
.capacity{margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.cap-bar{height:5px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.cap-bar i{display:block;height:100%;width:0;background:var(--accent);border-radius:99px;transition:width .2s,background .2s}
.cap-bar i.hot{background:#e08b1a}
.cap-bar i.over{background:#c8393d}
.cap-meta{display:flex;justify-content:space-between;font-size:11.5px;color:var(--ink-3);margin-top:6px;font-family:var(--mono)}

/* ---------- accordion ---------- */
.acc{padding:0}
.acc>summary{list-style:none;cursor:pointer;padding:15px 18px;font-weight:650;font-size:14.5px;display:flex;align-items:center;justify-content:space-between}
.acc>summary::-webkit-details-marker{display:none}
.acc>summary::after{content:"";width:7px;height:7px;border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);
  transform:rotate(45deg);transition:.2s;margin-right:3px}
.acc[open]>summary::after{transform:rotate(-135deg)}
.acc-body{padding:0 18px 18px;border-top:1px solid var(--line);padding-top:16px}

/* ---------- preview ---------- */
.col-preview{position:sticky;top:82px}
.preview-card{padding:20px}
.qr-stage{background:var(--surface-2);border-radius:var(--r);padding:18px;display:flex;align-items:center;justify-content:center;min-height:290px;
  background-image:linear-gradient(45deg,rgba(128,128,128,.09) 25%,transparent 25%,transparent 75%,rgba(128,128,128,.09) 75%),
                   linear-gradient(45deg,rgba(128,128,128,.09) 25%,transparent 25%,transparent 75%,rgba(128,128,128,.09) 75%);
  background-size:18px 18px;background-position:0 0,9px 9px}
.qr-box{width:100%;max-width:252px;line-height:0}
.qr-box svg{width:100%;height:auto;display:block;border-radius:5px}
.stage-meta{display:flex;gap:6px;justify-content:center;margin:13px 0}
.pill{font-family:var(--mono);font-size:11px;color:var(--ink-2);background:var(--surface-2);border:1px solid var(--line);padding:3px 9px;border-radius:99px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;background:var(--surface);border:1px solid var(--line);
  color:var(--ink);padding:10px 12px;border-radius:var(--r-sm);font:inherit;font-size:13.5px;font-weight:600;cursor:pointer;transition:.15s}
.btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.08);color:var(--accent-ink)}
.btn.wide{width:100%;margin-bottom:11px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.dl-grid{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:7px;margin-bottom:8px}
.dl-grid.two{grid-template-columns:1fr 1fr}

/* ---------- footer ---------- */
.foot{padding:26px 20px 40px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-2);line-height:1.65}
.foot p{margin:0 0 6px}

/* ---------- modal / drawer / toast ---------- */
.modal{position:fixed;inset:0;background:rgba(8,16,14,.62);backdrop-filter:blur(3px);z-index:60;display:flex;align-items:center;justify-content:center;padding:20px}
.modal-in{background:#fff;border-radius:var(--r);padding:26px;max-width:400px;width:100%;position:relative;text-align:center}
.modal-x{position:absolute;top:8px;right:12px;background:none;border:none;font-size:26px;line-height:1;color:#8b9995;cursor:pointer}
.scan-box{line-height:0}
.scan-box svg{width:100%;height:auto}
.scan-payload{font-family:var(--mono);font-size:11.5px;color:#5d6b66;word-break:break-all;margin:14px 0 0;max-height:88px;overflow:auto;text-align:left}

.drawer{position:fixed;inset:0;background:rgba(8,16,14,.45);z-index:55;display:flex;justify-content:flex-end}
.drawer-in{background:var(--surface);width:340px;max-width:88vw;height:100%;padding:18px;overflow:auto;border-left:1px solid var(--line)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.drawer-top>div{display:flex;gap:6px}
.hist-list{list-style:none;margin:14px 0 0;padding:0}
.hist-list li{border:1px solid var(--line);border-radius:var(--r-sm);padding:9px 11px;margin-bottom:8px;cursor:pointer;transition:.15s}
.hist-list li:hover{border-color:var(--accent);background:var(--accent-soft)}
.hist-type{font-size:10.5px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.05em}
.hist-val{font-family:var(--mono);font-size:12px;color:var(--ink-2);word-break:break-all;margin-top:3px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);background:var(--ink);color:var(--bg);
  padding:11px 20px;border-radius:99px;font-size:13.5px;font-weight:600;opacity:0;pointer-events:none;transition:.22s;z-index:80;max-width:88vw}
.toast.on{opacity:1;transform:translate(-50%,0)}

.scan-pill{border-color:transparent}
.scan-pill.ok{background:var(--accent-soft);color:var(--accent);border-color:color-mix(in srgb,var(--accent) 35%,transparent)}
.scan-pill.bad{background:var(--err-bg);color:var(--err-ink);border-color:var(--err-line)}
.scan-pill.wait{opacity:.55}