:root{--color-bg:#f4f6fa;--color-primary:#0b1f3a;--color-accent:#1565d8;--color-ok:#1a7f37;--color-warn:#b45309;--color-danger:#b91c1c;--color-card:#ffffff;--color-text:#1f2937;--color-muted:#6b7280;--radius:10px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--color-bg);color:var(--color-text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overscroll-behavior-y:none}main{width:100%;max-width:720px;margin:0 auto;padding:16px}img{max-width:100%}p{line-height:1.6;overflow-wrap:anywhere}.card{background:var(--color-card);border-radius:var(--radius);padding:16px;margin-bottom:16px;box-shadow:0 1px 3px rgba(0,0,0,.08)}h1{font-size:1.4rem;margin:0 0 12px}h2{font-size:1.1rem;margin:0 0 8px}label{display:block;font-size:.85rem;color:var(--color-muted);margin:10px 0 4px}input,select,textarea{width:100%;min-width:0;max-width:100%;padding:10px 12px;border:1px solid #d1d5db;border-radius:8px;font-size:1rem;background:#fff}.action-link,button{cursor:pointer;border:none;border-radius:8px;padding:12px 16px;font-size:1rem;font-weight:600;min-height:44px}.action-link{display:block;text-align:center;text-decoration:none}button:disabled{cursor:wait;opacity:.65}a:focus-visible,button:focus-visible{outline:3px solid var(--color-accent);outline-offset:3px}.btn-primary{background:var(--color-accent)}.btn-ok,.btn-primary{color:#fff;width:100%}.btn-ok{background:var(--color-ok)}.btn-danger{background:var(--color-danger);color:#fff;width:100%}.btn-ghost{background:transparent;color:var(--color-accent);border:1px solid var(--color-accent)}.btn-row{display:flex;flex-wrap:wrap;gap:8px}.btn-row>a,.btn-row>button{flex:1 1 120px;min-width:0}.btn-row>input{flex-basis:160px}.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.75rem;font-weight:700}.badge-ok{background:#dcfce7;color:var(--color-ok)}.badge-warn{background:#fef3c7;color:var(--color-warn)}.badge-error{background:#fee2e2;color:var(--color-danger)}.badge-info{background:#dbeafe;color:var(--color-accent)}.alert{border-radius:var(--radius);padding:12px;margin:8px 0;font-weight:600}.alert-warn{background:#fef3c7;color:var(--color-warn)}.alert-danger{background:#fee2e2;color:var(--color-danger)}.alert-ok{background:#dcfce7;color:var(--color-ok)}.error-text{color:var(--color-danger);font-size:.85rem;margin-top:4px}.muted{color:var(--color-muted);font-size:.85rem}.nav-bar{background:var(--color-primary);color:#fff;padding:12px 16px;display:flex;align-items:center;justify-content:space-between;position:-webkit-sticky;position:sticky;top:0;z-index:10;gap:12px;flex-wrap:wrap}.nav-bar>strong{min-width:0;overflow-wrap:anywhere}.nav-bar>span{display:flex;flex-wrap:wrap;gap:12px}.nav-bar a{color:#fff;text-decoration:none;margin-left:12px;font-size:.9rem}.grid-2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-gap:10px;gap:10px}.grid-2>*{min-width:0}.home{padding-top:24px}.home-brand{text-align:center}.home-brand img{display:block;width:100%;max-width:420px;height:auto;margin:0 auto}.install-card{border:1px solid #bfdbfe;background:#eff6ff}.install-card p:last-child{margin-bottom:0}@media screen and (max-width:600px){main{padding:12px}.home{padding-top:16px}.card{padding:16px;margin-bottom:12px}.grid-2{grid-template-columns:minmax(0,1fr)}.nav-bar{padding:12px}.nav-bar a{margin-left:0}table.list{display:block;max-width:100%;overflow-x:auto}table.list td,table.list th{min-width:90px}.qr-label{max-width:100%}}table.list{width:100%;border-collapse:collapse;font-size:.9rem}table.list td,table.list th{text-align:left;padding:8px 6px;border-bottom:1px solid #e5e7eb}video.qr-preview{width:100%;border-radius:var(--radius);background:#000}.qr-label{width:3in;height:2in;padding:2mm;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;font-size:8pt;border:1px dashed #999}.qr-label img{max-height:55%;object-fit:contain}@page{size:3in 2in;margin:0}@media print{body *{visibility:hidden}.qr-label,.qr-label *{visibility:visible}.qr-label{position:absolute;top:0;left:0;border:none}}