:root{--bg:#090d18;--panel:#121a2b;--panel2:#19243a;--text:#f5f7ff;--muted:#9aa7bd;--accent:#7657ff;--border:#2a3852}*{box-sizing:border-box}body{margin:0;font:15px system-ui;background:var(--bg);color:var(--text)}a{color:#a99bff;text-decoration:none}.app{display:flex;height:100vh}.sidebar{width:270px;background:var(--panel);border-right:1px solid var(--border);padding:18px;display:flex;flex-direction:column;gap:14px}.brand{font-size:22px;font-weight:800}.brand span{color:var(--accent)}button,.button{border:1px solid var(--border);background:var(--panel2);color:var(--text);border-radius:9px;padding:10px 13px;cursor:pointer}.primary{background:var(--accent);border:0;color:#fff;font-weight:700}.wide{width:100%;margin-top:15px}.conversations{flex:1;overflow:auto}.conv{padding:10px;border-radius:8px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conv:hover{background:var(--panel2);color:var(--text)}.profile{border-top:1px solid var(--border);padding-top:14px}.profile small{display:block;color:var(--muted);margin:3px 0 10px}.row{display:flex;gap:7px;flex-wrap:wrap}.main{flex:1;display:flex;flex-direction:column;min-width:0}.main header{height:60px;border-bottom:1px solid var(--border);padding:0 22px;display:flex;align-items:center;justify-content:space-between}.messages{flex:1;overflow:auto;padding:35px 8%}.welcome{max-width:800px;margin:20vh auto;text-align:center;font-size:28px}.msg{max-width:900px;margin:0 auto 24px;display:flex;gap:14px}.avatar{width:34px;height:34px;border-radius:9px;background:var(--panel2);display:grid;place-items:center;flex:none}.msg.user .avatar{background:var(--accent)}.bubble{white-space:pre-wrap;line-height:1.65}.composer{padding:15px 8% 24px;display:flex;max-width:1050px;width:100%;margin:auto}.composer textarea{flex:1;background:var(--panel);border:1px solid var(--border);color:var(--text);border-radius:12px;padding:13px;resize:none;outline:none}.composer button{margin-left:8px}.auth{min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(circle at top,#22164c,transparent 45%),var(--bg)}.card{width:min(430px,100%);background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:28px}.card h1{margin-bottom:8px}.card label{display:block;margin:13px 0 6px}.card input{width:100%;padding:11px;background:var(--panel2);color:var(--text);border:1px solid var(--border);border-radius:8px}.muted{color:var(--muted)}.error{color:#ff7893}.simple,.admin{max-width:1100px;margin:auto;padding:28px}.plans,.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:15px}.plan,.stat,.panel{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:18px}.stat b{display:block;font-size:28px;margin-top:8px}.panel{margin-top:18px;overflow:auto}table{width:100%;border-collapse:collapse}th,td{padding:10px;border-bottom:1px solid var(--border);text-align:left}.between{justify-content:space-between;align-items:center}@media(max-width:700px){.sidebar{display:none}.messages{padding:20px}.composer{padding:10px}.simple,.admin{padding:15px}}