:root{--bg:#f5f7fb;--panel:#fff;--ink:#162033;--muted:#647083;--line:#dfe5ee;--accent:#0f766e;--accent-2:#2563eb;--danger:#be123c}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font-family:Arial,Helvetica,sans-serif}button,input,select,textarea{font:inherit}button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px 14px;display:inline-flex}button:disabled{opacity:.45;cursor:not-allowed}.ghost{color:var(--ink);background:#eef3f8}.shell{grid-template-columns:260px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{color:#fff;background:#111827;flex-direction:column;gap:30px;padding:24px;display:flex}.brand{align-items:center;gap:10px;font-size:22px;font-weight:800;display:flex}.sidebar nav{gap:10px;display:grid}.sidebar a{color:#dbeafe;border-radius:8px;align-items:center;gap:10px;padding:10px;text-decoration:none;display:flex}.sidebar a:hover{background:#ffffff14}.content{gap:24px;padding:28px;display:grid}.topbar,.sectionTitle,.authPanel{justify-content:space-between;align-items:center;gap:18px;display:flex}.topbar h1{max-width:780px;margin:4px 0 0;font-size:clamp(28px,4vw,46px);line-height:1.05}.eyebrow{color:var(--accent);text-transform:uppercase;margin:0;font-size:12px;font-weight:800}.authPanel,.builder,.preview,.qrCard{border:1px solid var(--line);background:var(--panel);border-radius:8px;padding:20px;box-shadow:0 10px 24px #0f172a0d}.authPanel h2,.sectionTitle h2,.qrCard h3{margin:0}.authPanel p,.preview p,.qrCard p{color:var(--muted)}.authGrid,.formGrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.authorizePanel{align-items:flex-start}.authorizeActions{gap:12px;min-width:min(360px,100%);display:grid}.authError{color:var(--danger);background:#be123c14;border:1px solid #be123c2e;border-radius:8px;margin:0;padding:12px 14px;font-weight:700}input,select,textarea{border:1px solid var(--line);width:100%;color:var(--ink);background:#fff;border-radius:8px;padding:11px 12px}textarea{resize:vertical;min-height:92px}label{color:var(--muted);gap:7px;font-size:13px;font-weight:700;display:grid}.workspace{grid-template-columns:minmax(0,1.35fr) minmax(300px,.65fr);align-items:start;gap:20px;display:grid}.builder{gap:16px;display:grid}.typeGrid{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;display:grid}.typeGrid button{color:var(--ink);background:#e8eef5}.typeGrid button.active{background:var(--accent-2);color:#fff}.switchRow{align-items:center;display:flex}.switchRow label{flex-direction:row;align-items:center;display:flex}.switchRow input{width:auto}.preview{justify-items:center;gap:16px;display:grid;position:sticky;top:20px}.cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.qrCard{gap:14px;display:grid}.tagRow,.downloadRow{flex-wrap:wrap;gap:8px;display:flex}.tagRow span{color:#075985;background:#e0f2fe;border-radius:999px;padding:5px 9px;font-size:12px;font-weight:800}.downloadRow button{color:var(--ink);background:#eef3f8}.authCallbackShell{place-items:center;min-height:100vh;padding:24px;display:grid}.authCallbackCard{border:1px solid var(--line);background:var(--panel);border-radius:12px;width:min(520px,100%);padding:28px;box-shadow:0 10px 24px #0f172a0d}.authCallbackCard h1{margin:0 0 12px}.authCallbackCard p{color:var(--muted);margin:0}.message{white-space:pre-wrap;border:1px solid var(--line);color:#9a3412;background:#fff7ed;border-radius:8px;margin:0;padding:12px;overflow:auto}@media (max-width:960px){.shell{grid-template-columns:1fr}.sidebar{padding:18px;position:static}.sidebar nav{grid-template-columns:repeat(4,minmax(0,1fr))}.workspace,.cards{grid-template-columns:1fr}.preview{position:static}}@media (max-width:640px){.content{padding:18px}.topbar,.sectionTitle,.authPanel{flex-direction:column;align-items:stretch}.authGrid,.formGrid,.typeGrid,.sidebar nav{grid-template-columns:1fr}}