body{font-family:Inter,system-ui,Arial,sans-serif;margin:0;background:#0d1224;color:#eaf0ff}
header{padding:12px 16px;border-bottom:1px solid #2e3e78;display:flex;align-items:center;justify-content:space-between}
nav button{margin-right:8px}
main{padding:16px}
.screen{display:none}
.screen.active{display:block}
.cards{display:flex;gap:12px;flex-wrap:wrap}
.card,.panel{background:#131a34;border:1px solid #2e3e78;border-radius:10px;padding:12px;margin-top:12px}
.chat textarea{width:100%;min-height:80px;margin-top:8px}
pre{white-space:pre-wrap}
.overlay{position:fixed;inset:0;background:#0008;display:grid;place-items:center}
.overlay.hidden{display:none}
.modal{background:#111833;padding:16px;border:1px solid #3d52a0;border-radius:12px;max-width:560px}
button{background:#2a3f84;color:#fff;border:1px solid #4d6ad0;border-radius:8px;padding:8px 10px;cursor:pointer}