:root{color-scheme:light;--bg:#f5f7f8;--text:#172026;--muted:#58656e;--line:#cbd5dc;--panel:#fff;--primary:#256f5b;font-family:Inter,Segoe UI,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button,textarea,input{font:inherit}.app-shell{min-height:100vh;padding:24px;display:flex;flex-direction:column;gap:14px}.topbar,.toolbar,.pane,.panel,.feedback-panel{background:var(--panel);border:1px solid var(--line);border-radius:8px}.topbar{display:flex;justify-content:space-between;gap:20px;padding:18px 20px;align-items:center}.eyebrow{margin:0 0 4px;color:var(--primary);font-size:13px;font-weight:800;text-transform:uppercase}h1{margin:0;font-size:30px;line-height:1.1}.trust-strip,.toolbar,.actions{display:flex;gap:10px;flex-wrap:wrap}.trust-strip{justify-content:flex-end}.trust-strip span{border:1px solid var(--line);padding:6px 10px;border-radius:999px;font-weight:800;color:var(--primary)}.toolbar{padding:10px}button,.button-link{border:1px solid var(--line);background:#fff;color:var(--text);min-height:38px;padding:0 14px;border-radius:7px;cursor:pointer;font-weight:800;text-decoration:none;display:inline-flex;align-items:center}button[hidden]{display:none}.primary{background:var(--primary);border-color:var(--primary);color:#fff}.grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.7fr);gap:14px}.wide{grid-column:1/-1}.pane,.panel{min-width:0;display:flex;flex-direction:column;gap:10px;padding:12px}.pane span{color:var(--muted);font-size:13px;font-weight:800}textarea{resize:none;width:100%;min-height:230px;border:1px solid var(--line);border-radius:6px;padding:12px;font-family:Consolas,ui-monospace,monospace}input{border:1px solid var(--line);border-radius:6px;padding:8px}.controls label{display:grid;gap:6px;font-weight:700}pre{margin:0;padding:12px;border-radius:6px;border:1px solid var(--line);background:#f8fafb;white-space:pre-wrap;font-family:Consolas,ui-monospace,monospace}.feedback-panel{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:#eef6f3}.feedback-panel[hidden]{display:none}.feedback-panel p{margin:4px 0 0;color:var(--muted)}@media(max-width:820px){.app-shell{padding:12px}.topbar,.feedback-panel{align-items:stretch;flex-direction:column}.grid{grid-template-columns:1fr}.trust-strip{justify-content:flex-start}}