:root{--bg: #0f1115;--surface: #171a21;--border: #262b36;--fg: #e7eaf0;--muted: #8b93a5;--accent: #4c8dff;--danger: #ff6b6b;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.55 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.app{max-width:620px;margin:0 auto;padding:24px 16px 80px}header{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px}header h1{font-size:22px;margin:0;letter-spacing:-.02em}.who{display:flex;align-items:center;gap:12px}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:14px 16px;margin-bottom:12px}.muted{color:var(--muted)}.warn{color:#e0b341}.error{color:var(--danger);margin:4px 0}.empty{text-align:center;padding:24px 0}label{display:block;margin-bottom:12px;color:var(--muted);font-size:13px}input,textarea{display:block;width:100%;margin-top:4px;padding:9px 11px;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:inherit;font:inherit;resize:vertical}input:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px}button{font:inherit;cursor:pointer;border-radius:8px;border:1px solid transparent;padding:8px 14px;background:transparent;color:inherit}button.primary{background:var(--accent);color:#fff;font-weight:500}button.primary:disabled{opacity:.45;cursor:default}button.link{border:0;padding:2px 4px;color:var(--muted)}button.link:hover{color:var(--fg)}button.link.danger:hover{color:var(--danger)}.tabs{display:flex;gap:4px;margin-bottom:14px}.tabs button{flex:1;border:1px solid var(--border);color:var(--muted)}.tabs button.on{border-color:var(--accent);color:var(--fg)}.row{display:flex;align-items:center;gap:10px;justify-content:space-between}.composer textarea{margin-bottom:10px}.composer.reply{margin-top:10px;padding-top:10px;border-top:1px solid var(--border)}.feed,.replies{list-style:none;margin:0;padding:0}.tweet .head{justify-content:flex-start;gap:8px;margin-bottom:4px}.tweet .head .muted{font-size:13px}.tweet .head button.link{margin-left:auto}.text{margin:0;white-space:pre-wrap;overflow-wrap:anywhere}.replies{margin:12px 0 0;padding-left:14px;border-left:2px solid var(--border);display:grid;gap:10px}