:root{
  --bg:#fbfbfa;--surface:#fff;--surface-2:#f5f5f3;--text:#1f1f1f;--muted:#74746f;
  --border:#e6e5e1;--accent:#5f58e8;--accent-2:#4d46d4;--danger:#d64545;--shadow:0 12px 35px rgba(25,25,25,.08);
  --sidebar:286px;--composer:760px;--radius:18px;
  color-scheme:light;
}
html[data-theme="dark"]{
  --bg:#181817;--surface:#232321;--surface-2:#2c2c29;--text:#f4f3ef;--muted:#aaa9a4;
  --border:#3a3935;--accent:#9b92ff;--accent-2:#857bff;--danger:#ff7777;--shadow:0 12px 35px rgba(0,0,0,.28);
  color-scheme:dark;
}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}
button,input,textarea,select{font:inherit}button{color:inherit}a{color:inherit}.d-none{display:none!important}
.ellipsis{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.icon-btn{border:0;background:transparent;border-radius:10px;width:36px;height:36px;cursor:pointer;font-size:20px}.icon-btn:hover{background:var(--surface-2)}
.auth-body{background:#f6f6fb}.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card{width:min(440px,100%);background:#fff;padding:34px;border-radius:20px;box-shadow:0 18px 55px rgba(70,63,145,.12);color:#252525}.auth-card-wide{width:min(560px,100%)}.auth-logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:750;font-size:19px;margin-bottom:28px}.auth-logo img{width:38px;height:38px}.auth-card h1{font-size:28px;margin:0 0 8px}.auth-card>p{color:#777;margin-bottom:26px}.auth-switch{text-align:center;margin-top:22px;color:#777}.auth-switch a{color:#5f58e8;font-weight:600}.simple-error{min-height:100vh;display:grid;place-items:center;text-align:center;padding:30px}.simple-error h1{font-size:72px;margin:0;color:var(--accent)}.simple-error h2{margin:0 0 16px}.simple-error a{color:var(--accent)}
.settings-page{min-height:100vh;padding:36px 20px;background:var(--bg)}.settings-card{max-width:780px;margin:auto;background:var(--surface);border:1px solid var(--border);border-radius:22px;padding:30px}.settings-head{margin-bottom:28px}.back-link{text-decoration:none;color:var(--muted);font-size:14px}.settings-head h1{margin:14px 0 0}.settings-section{padding:24px 0;border-top:1px solid var(--border);display:grid;gap:10px}.settings-section h2{font-size:18px;margin:0 0 8px}.settings-section label{font-size:14px;font-weight:600}.settings-input{width:100%;border:1px solid var(--border);background:var(--surface-2);color:var(--text);padding:12px 14px;border-radius:12px;outline:0}.settings-input:focus{border-color:var(--accent)}.settings-textarea{min-height:120px;resize:vertical}.toggle-row{display:flex;gap:10px;align-items:center}.settings-save,.primary-action{border:0;background:var(--accent);color:#fff;padding:12px 18px;border-radius:12px;font-weight:650;cursor:pointer;text-decoration:none;text-align:center}.notice{padding:12px 14px;border-radius:10px;margin:12px 0}.notice.success{background:#eaf8ee;color:#23733d}.notice.error{background:#feecec;color:#9d2e2e}