:root{
  --bg:#f4f6f9;
  --surface:#ffffff;
  --surface2:#eef1f6;
  --border:#d8dee8;
  --text:#152238;
  --dim:#5b6b82;
  --accent:#0b5fff;
  --accent-ink:#ffffff;
  --accent-soft:#e8efff;
  --danger:#d9212c;
  --spine:#152238;
  --radius:12px;
  --shadow:0 1px 3px rgba(16,24,40,.08), 0 1px 2px rgba(16,24,40,.04);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  background:var(--bg);color:var(--text);
  font:15px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
button{font:inherit;cursor:pointer}
[hidden]{display:none!important}

.topbar{
  position:sticky;top:0;z-index:30;
  display:flex;align-items:center;gap:12px;
  padding:10px 16px;
  background:var(--surface);border-bottom:1px solid var(--border);
}
.brand{display:flex;align-items:center;gap:9px}
.brand-mark{font-size:20px;color:var(--accent);line-height:1}
.brand-name{font-weight:800;font-size:17px;letter-spacing:-.2px}
.brand-sub{color:var(--dim);font-size:12px;margin-top:3px}
.spacer{flex:1}

.toggle{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:13px;color:var(--dim);user-select:none}
.toggle input{position:absolute;opacity:0;width:0;height:0}
.toggle-slider{width:38px;height:22px;border-radius:11px;background:var(--surface2);border:1px solid var(--border);position:relative;transition:.15s}
.toggle-slider::after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;background:var(--surface);border:1px solid var(--border);transition:.15s}
.toggle input:checked + .toggle-slider{background:var(--accent);border-color:var(--accent)}
.toggle input:checked + .toggle-slider::after{transform:translateX(16px);border-color:transparent}

.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border);
  background:var(--surface);color:var(--text);font-size:18px;line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.icon-btn:hover{background:var(--surface2)}

.layout{
  display:grid;grid-template-columns:minmax(280px,360px) 1fr;
  gap:20px;padding:20px;max-width:1200px;margin:0 auto;align-items:start;
}
.col-title{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--dim);margin:2px 4px 10px;font-weight:700}

.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;overflow:hidden}
.panel-title{padding:11px 14px;margin:0;font-size:14px;font-weight:700;border-bottom:1px solid var(--border);background:var(--surface2)}
.fields{padding:6px 14px 10px}

.field{display:flex;flex-direction:column;padding:8px 0}
.field label{font-size:13.5px;font-weight:600;margin-bottom:5px;display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.field .unit{color:var(--dim);font-weight:400;font-size:12px;white-space:nowrap}
.field input{
  height:42px;padding:0 12px;font-size:16px;border:1px solid var(--border);
  border-radius:10px;background:var(--surface);color:var(--text);width:100%;
  transition:border-color .15s, box-shadow .15s;
}
.field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.field input.abnormal{border-color:var(--danger)}
.field input.abnormal:focus{box-shadow:0 0 0 3px rgba(217,33,44,.15)}

.actions{display:flex;gap:10px;margin-top:4px}
.btn{
  height:44px;padding:0 18px;border-radius:10px;border:1px solid transparent;
  font-weight:700;font-size:14px;transition:.15s;
}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{filter:brightness(1.06)}
.btn-ghost{background:var(--surface);color:var(--text);border-color:var(--border)}
.btn-ghost:hover{background:var(--surface2)}

.output-col{position:sticky;top:76px}
.output-empty{
  border:2px dashed var(--border);border-radius:var(--radius);
  padding:48px 24px;text-align:center;color:var(--dim);background:var(--surface);
}
.fishbone-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;overflow:hidden}
.card-title{padding:11px 14px;margin:0;font-size:14px;font-weight:700;border-bottom:1px solid var(--border);background:var(--surface2)}
.svg-wrap{padding:16px;display:flex;justify-content:center}
.svg-wrap svg{max-width:100%;height:auto;display:block}
.output-actions{display:flex;justify-content:flex-end;gap:10px}

.bulk-panel{margin-top:18px}
.bulk-body{padding:14px}
.bulk-hint{color:var(--dim);font-size:13px;margin:0 0 12px}
.bulk-hint code{background:var(--surface2);border:1px solid var(--border);border-radius:5px;padding:1px 5px;font-size:12px}
.dropzone{
  border:2px dashed var(--border);border-radius:12px;padding:18px 14px;
  display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;
  background:var(--surface2);transition:border-color .15s, background .15s;
}
.dropzone.drag{border-color:var(--accent);background:var(--accent-soft)}
.dropzone-text{color:var(--dim);font-size:13px;margin:0}
.template-link{
  display:inline-block;margin-top:12px;font-size:13px;font-weight:600;color:var(--accent);
  text-decoration:none;
}
.template-link:hover{text-decoration:underline}

.bulk-output{margin-top:26px}
.bulk-output .col-title{margin-top:0}
.subcard-title{font-size:12px;font-weight:700;color:var(--dim);text-transform:uppercase;letter-spacing:.05em;padding:10px 16px 0}

.settings-overlay{position:fixed;inset:0;background:rgba(16,24,40,.45);z-index:50;display:flex;align-items:center;justify-content:center;padding:16px}
.settings-dialog{
  background:var(--surface);border-radius:14px;width:100%;max-width:560px;
  max-height:88vh;display:flex;flex-direction:column;box-shadow:0 10px 40px rgba(16,24,40,.25);
}
.settings-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border)}
.settings-head h3{margin:0;font-size:16px}
.settings-note{color:var(--dim);font-size:13px;margin:0;padding:10px 18px 0}
.settings-display{padding:12px 18px 4px}
.settings-display-row{display:flex;align-items:center;gap:12px}
.settings-display-row .set-name{font-weight:600;font-size:14px;white-space:nowrap}
.settings-display-row input[type="range"]{flex:1;accent-color:var(--accent);height:24px}
.size-readout{min-width:52px;text-align:right;color:var(--dim);font-size:13px;font-variant-numeric:tabular-nums}
.settings-body{overflow-y:auto;padding:12px 18px}
.setting-row{display:grid;grid-template-columns:1fr 90px 90px;gap:10px;align-items:center;padding:8px 0;border-bottom:1px solid var(--surface2)}
.setting-row:last-child{border-bottom:0}
.setting-row .set-name{font-weight:600;font-size:14px}
.setting-row .set-sub{color:var(--dim);font-size:12px}
.setting-row input{
  height:38px;padding:0 10px;font-size:14px;border:1px solid var(--border);
  border-radius:8px;width:100%;text-align:center;
}
.setting-row.set-hdr{border-bottom:1px solid var(--border);padding:4px 0}
.set-col-h{text-align:center;color:var(--dim);font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em}
.settings-foot{display:flex;align-items:center;gap:10px;padding:14px 18px;border-top:1px solid var(--border)}

@media (max-width:900px){
  .layout{grid-template-columns:1fr}
  .output-col{position:static}
  .toggle-label{display:none}
}

@media print{
  .topbar,.inputs-col,.actions,.output-actions,.settings-overlay{display:none!important}
  .layout{display:block;padding:0}
  .output-col{position:static}
  .output-empty{display:none}
  .fishbone-card{box-shadow:none;page-break-inside:avoid}
}