:root{color-scheme:light dark;--bg: #fdfdfb;--fg: #1d1d1f;--muted: #7a7a80;--accent: #5661d0;--tint: rgba(96, 110, 220, .13);--panel-bg: #f4f4f1;--border: #dcdcd6}@media (prefers-color-scheme: dark){:root{--bg: #191a1e;--fg: #e6e4de;--muted: #8b8b93;--accent: #8f9af0;--tint: rgba(143, 154, 240, .16);--panel-bg: #202127;--border: #33343c}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font-family:system-ui,sans-serif}.app{display:flex;flex-direction:column;height:100vh}.editor{flex:1;min-height:0}.editor .cm-editor{height:100%}.main{display:flex;flex:1;min-height:0}.topbar{display:flex;align-items:center;gap:.6rem;padding:.4rem .75rem;border-bottom:1px solid var(--border);background:var(--panel-bg);font-size:13px}.topbar .brand{font-weight:600;letter-spacing:.02em}.topbar .spacer{flex:1}.topbar .model{color:var(--muted)}.topbar button,.topbar select{background:transparent;color:var(--fg);border:1px solid var(--border);border-radius:4px;padding:.15rem .5rem;font-size:12px;cursor:pointer}.session-picker{display:flex;gap:.25rem;align-items:center}.session-picker select{max-width:14ch}.status.generating{color:var(--accent)}.status.error{color:#c33;cursor:pointer;max-width:40ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.settings{width:320px;flex-shrink:0;overflow-y:auto;border-left:1px solid var(--border);background:var(--panel-bg);padding:.75rem 1rem 2rem;font-size:13px}.settings h2{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:1.2rem 0 .4rem}.settings label{display:flex;flex-direction:column;gap:.2rem;margin-bottom:.6rem;color:var(--muted)}.settings input,.settings select,.settings textarea{background:var(--bg);color:var(--fg);border:1px solid var(--border);border-radius:4px;padding:.3rem .45rem;font:inherit}.settings textarea{resize:vertical;font-size:12px}.settings .hint{color:var(--muted);margin-top:1.5rem}.settings kbd{background:var(--bg);border:1px solid var(--border);border-radius:3px;padding:0 .3em;font-size:11px}.popup{position:fixed;z-index:10;background:var(--panel-bg);border:1px solid var(--border);border-radius:6px;box-shadow:0 4px 16px #0000002e;padding:.35rem}.popup input{width:320px;background:var(--bg);color:var(--fg);border:none;outline:none;padding:.35rem .5rem;font-size:14px;border-radius:4px}