:root{
  --bg:#f6f8fb; --card:#fff; --muted:#666;
}
*{box-sizing:border-box}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial; margin:0; background:var(--bg); color:#111}
main{max-width:900px;margin:24px auto;padding:16px}
.screen{background:var(--card);padding:16px;border-radius:8px;box-shadow:0 2px 6px rgba(0,0,0,.06)}
.hidden{display:none}
label{display:block;margin:8px 0}
input,textarea,button{font:inherit;padding:8px;border:1px solid #d6d9de;border-radius:6px}
textarea{min-height:80px;resize:vertical}
.row{display:flex;gap:8px;margin-top:8px}
.oauth{margin-top:12px}
.oauth-btn{margin-right:8px}
.note{font-size:12px;color:var(--muted)}
header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.tabs{display:flex;gap:8px;margin-bottom:12px}
.tab{padding:8px 12px;border-radius:6px;border:1px solid #e1e4ea;background:#fff}
.tab.active{background:#007bff;color:#fff;border-color:#007bff}
.tab-panel{min-height:200px}
ul{list-style:none;padding:0;margin:8px 0}
li.card{padding:8px;border:1px solid #eee;margin-bottom:6px;border-radius:6px;background:#fafafa}
.top-actions{display:flex;gap:8px;align-items:center}
#online-dot{width:10px;height:10px;border-radius:50%;display:inline-block;background:gray}
.downloads{margin-top:12px;font-size:14px}