:root{--bg:#0f141a;--panel:#141b22;--muted:#8b9bb1;--text:#e6edf3;--accent:#2f81f7;--border:#26323d}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,Segoe UI,Roboto;background:var(--bg);color:var(--text)}
#app{display:grid;grid-template-columns:280px 1fr 42%;grid-template-rows:100vh}
.sidebar{background:var(--panel);border-right:1px solid var(--border);padding:16px;overflow:auto}
.brand .title{font-weight:700}
.panel{margin:14px 0}.panel-label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
textarea,select,input[type=password]{width:100%;background:#0c1116;border:1px solid var(--border);color:var(--text);padding:8px;border-radius:8px}
.switch{position:relative;display:inline-block;width:48px;height:26px}.switch input{opacity:0;width:0;height:0}
.slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background:#2a3440;transition:.3s;border-radius:26px}
.slider:before{position:absolute;content:"";height:22px;width:22px;left:2px;bottom:2px;background:#fff;transition:.3s;border-radius:50%}
input:checked + .slider{background:var(--accent)}input:checked + .slider:before{transform:translateX(22px)}
.main{display:flex;flex-direction:column;height:100vh}.chat{flex:1;overflow:auto;padding:16px 20px}
.msg{padding:12px 14px;border:1px solid var(--border);border-radius:12px;margin-bottom:10px;background:#0c1116}
.msg.assistant{background:#0d1117}.msg .role{font-size:12px;color:var(--muted);margin-bottom:6px}.msg .content{font-size:14px}
pre code{display:block;padding:12px;background:#0b0f14;border-radius:8px;border:1px solid var(--border);white-space:pre-wrap;word-wrap:break-word}
.composer{border-top:1px solid var(--border);padding:12px;background:var(--panel)}.row{display:flex;gap:10px}
.toolbar{display:flex;gap:8px;align-items:center;margin-top:8px}.status{color:var(--muted);font-size:12px}
.btn{background:var(--accent);color:#fff;padding:10px 14px;border:0;border-radius:10px;cursor:pointer;font-weight:600}
.btn.ghost{background:transparent;border:1px solid var(--border)}.btn.outline{background:transparent;border:1px solid var(--accent);color:var(--accent)}
.btn.small{padding:6px 10px;font-size:12px}
.editor-panel{border-left:1px solid var(--border);display:flex;flex-direction:column;height:100vh}
.editor-header{padding:10px 12px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:var(--panel)}
.modal.hidden{display:none}.modal{position:fixed;inset:0;display:grid;place-items:center;z-index:1000}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.55);backdrop-filter:blur(2px);cursor:pointer}
.modal-window{position:relative;width:min(560px,92vw);background:#0d131a;border:1px solid var(--border);border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.5)}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--border);background:var(--panel);border-top-left-radius:12px;border-top-right-radius:12px;font-weight:600}
.modal-body{padding:14px;display:grid;gap:10px}.keyrow{display:grid;grid-template-columns:1fr auto;gap:8px}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;background:#243041;color:#cfe3ff;border:1px solid var(--border)}