:root{--bg:#f6f6f6;--panel:#ffffff;--border:#d6d6d6;--text:#111;--muted:#666;--link:#0033cc;--red:#cc0000;--shadow: 0 1px 0 rgba(0,0,0,.04)}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.page{min-height:100%;padding-bottom:96px}.topbar{position:sticky;top:0;z-index:10;background:linear-gradient(#fff,#f0f0f0);border-bottom:1px solid var(--border);box-shadow:var(--shadow);padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{display:flex;flex-direction:column;gap:2px;min-width:0}.logo{font-weight:700;font-size:22px;letter-spacing:-.2px;display:flex;align-items:center;gap:0}.logoYou{color:#111}.logoTube{margin-left:2px;background:var(--red);color:#fff;border-radius:8px;padding:2px 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