:root{--bg:#09101f;--panel:#111827;--panel2:#0f172a;--text:#f8fafc;--muted:#94a3b8;--border:#273449}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,Arial,sans-serif;background:var(--bg);color:var(--text)}
.topbar{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--border);background:#080e1a;position:sticky;top:0;z-index:10}
.brandbox{display:flex;align-items:center;gap:12px}.brandbox strong{font-size:18px}.brandbox span{font-size:12px;color:var(--muted)}.top-actions{display:flex;gap:8px}
.app{display:grid;grid-template-columns:470px 1fr;min-height:calc(100vh - 64px)}
.panel{background:var(--panel);border-right:1px solid var(--border);padding:20px;overflow:auto;max-height:calc(100vh - 64px)}
.controls h1{margin:0 0 5px;font-size:25px}.muted{color:var(--muted);font-size:13px;margin-top:0}
.group{border:1px solid var(--border);border-radius:14px;padding:0 12px 14px;margin-top:14px;background:#0e1626}
.group>summary{cursor:pointer;font-weight:900;padding:13px 2px;color:#e2e8f0}
label{display:grid;gap:7px;font-size:12px;font-weight:800;color:#cbd5e1;margin-top:12px}
input,textarea,select{width:100%;border:1px solid var(--border);border-radius:10px;background:var(--panel2);color:var(--text);padding:10px 12px;outline:none}
input[type=color]{height:42px;padding:4px}input:focus,textarea:focus,select:focus{border-color:#3b82f6}textarea{resize:vertical}
.grid2,.colorgrid,.togglegrid{display:grid;grid-template-columns:1fr 1fr;gap:8px 10px}.check{display:flex;grid-template-columns:18px 1fr;align-items:center;gap:8px;font-weight:600}.check input{width:16px;height:16px;margin:0}
.help{display:block;color:var(--muted);margin-top:8px;line-height:1.5}.help code{color:#93c5fd}
.editor-list{display:grid;gap:10px}.editor-item{padding:10px;border:1px solid #23304a;border-radius:10px;background:#0a1220}.editor-item strong{font-size:11px;color:#93c5fd}.editor-item input,.editor-item textarea,.editor-item select{margin-top:7px}
.preview-switch{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:18px}.tab{border:1px solid var(--border);background:#0d1525;color:#cbd5e1;padding:10px;border-radius:10px;font-weight:850;cursor:pointer}.tab.active{border-color:#3b82f6;background:#172554;color:#dbeafe}
.actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}.actions .primary,.actions .zip,.actions .checkamp{grid-column:1/-1}
.btn{border:1px solid var(--border);background:#172033;color:#fff;border-radius:10px;padding:10px 13px;font-weight:850;cursor:pointer}
.btn.primary{background:linear-gradient(135deg,#2563eb,#06b6d4);border-color:transparent}.btn.ghost{background:transparent}.btn.zip{background:linear-gradient(135deg,#7c3aed,#2563eb);border-color:transparent}.btn.checkamp{background:#0f766e;border-color:#14b8a6}
.model-info{margin-top:16px;padding:12px;border-radius:12px;background:#0d1525;border:1px solid var(--border);font-size:12px;color:#cbd5e1;line-height:1.5}
.note{margin-top:16px;padding:12px;border:1px dashed var(--border);border-radius:12px;color:var(--muted);font-size:12px;display:flex;flex-wrap:wrap;gap:6px}.note.compact{margin-top:10px}.note code{background:#0b1220;padding:4px 6px;border-radius:6px;color:#93c5fd}
.amp-check-result{margin-top:10px;padding:12px;border:1px solid var(--border);border-radius:12px;background:#0a1220;font-size:12px;line-height:1.55}.amp-check-result.pass{border-color:#16a34a;color:#bbf7d0}.amp-check-result.warn{border-color:#f59e0b;color:#fde68a}.amp-check-result.fail{border-color:#dc2626;color:#fecaca}.amp-check-result ul{margin:8px 0 0;padding-left:18px}
.preview-area{min-width:0;padding:14px;display:grid;grid-template-rows:auto 1fr;gap:10px}.preview-head{display:flex;align-items:center;justify-content:space-between;color:#cbd5e1;font-size:13px}#status{color:var(--muted)}
iframe{width:100%;height:100%;min-height:calc(100vh - 110px);border:1px solid var(--border);border-radius:14px;background:#fff}
@media(max-width:1050px){.app{grid-template-columns:1fr}.panel{max-height:none;border-right:0;border-bottom:1px solid var(--border)}iframe{min-height:800px}}
@media(max-width:520px){.grid2,.colorgrid,.togglegrid{grid-template-columns:1fr}.brandbox span{display:none}}

.route-note{margin:8px 0 12px;padding:11px 12px;border:1px solid #1d4ed8;border-radius:10px;background:#0b1b3a;color:#bfdbfe;font-size:12px;line-height:1.55}
.route-note code{color:#93c5fd}

.boiler-note{grid-column:1/-1;font-size:11px;color:#94a3b8;text-align:center;padding:2px 0 4px}