:root{--bg:#17212b;--sidebar:#0e1621;--msg-own:#2b5278;--msg-other:#182533;--accent:#5288c1;--accent-hover:#4a7ab0;--text:#e9edf0;--muted:#6d7f8f;--line:#101921}*{box-sizing:border-box;margin:0;padding:0}body,html{height:100%}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:15px;line-height:1.45;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#__next,body>div{height:100%}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}*{scrollbar-width:thin;scrollbar-color:#26333f transparent}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#26333f;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#33424f}input,select,textarea{font-family:inherit;font-size:inherit;color:var(--text);background:var(--sidebar);border:1px solid var(--line);border-radius:8px;padding:10px 12px;outline:none;transition:border-color .15s ease}input::placeholder,textarea::placeholder{color:var(--muted)}input:focus,select:focus,textarea:focus{border-color:var(--accent)}button{font-family:inherit;font-size:inherit;color:var(--text);background:var(--accent);border:none;border-radius:8px;padding:10px 16px;cursor:pointer;transition:background .15s ease,opacity .15s ease}button:hover:not(:disabled){background:var(--accent-hover)}button:disabled{opacity:.55;cursor:default}.btn-ghost{background:transparent;color:var(--text)}.btn-ghost:hover:not(:disabled){background:hsla(0,0%,100%,.06)}