:root{color-scheme:dark;--bg: #11151a;--panel: #1b2027;--line: #2a313b;--text: #e6eaef;--muted: #9aa6b2;--accent: #5aa9e6}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font:14px/1.5 system-ui,sans-serif}.gridsmith{display:grid;grid-template-columns:320px 1fr;height:100vh}.gridsmith__panel{padding:1.25rem;background:var(--panel);border-right:1px solid var(--line);overflow-y:auto}.gridsmith__panel h1{margin:0 0 1rem;font-size:1.15rem}.gridsmith__pick{margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--line)}.gridsmith__viewer{position:relative;min-width:0}.field{display:block;margin-bottom:.85rem}.field>span{display:block;margin-bottom:.25rem;color:var(--muted)}.field__row{display:grid;grid-template-columns:1fr 72px;gap:.5rem;align-items:center}.field input[type=number],.field select{width:100%;padding:.35rem .5rem;background:#0e1217;color:var(--text);border:1px solid var(--line);border-radius:6px}.field__error{display:block;margin-top:.2rem;color:#ff8a8a;font-style:normal;font-size:.85em}.gridsmith__status{margin-top:1rem;font-size:.85rem;color:var(--muted)}.gridsmith__status--error{color:#ff8a8a}.gridsmith__status--loading{color:var(--accent)}.gridsmith__export{margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--line)}.gridsmith__export h2{margin:0 0 .75rem;font-size:1rem}.btn{width:100%;padding:.6rem 1rem;margin-top:.5rem;background:var(--accent);color:#04121f;border:0;border-radius:6px;font-weight:600;cursor:pointer}.btn:disabled{opacity:.6;cursor:progress}.gridsmith__download{display:block;margin-top:.75rem;color:var(--accent)}