:root{--bg: #0f1115;--panel: #171a21;--border: #262b36;--text: #e6e8ec;--muted: #9aa3b2;--accent: #6366f1}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}.app{display:flex;flex-direction:column;height:100%}.topbar{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--panel);border-bottom:1px solid var(--border)}.brand{font-weight:700;letter-spacing:-.02em}.tag{font-size:12px;color:var(--muted);border:1px solid var(--border);padding:2px 8px;border-radius:999px}.spacer{flex:1}.slidecount{font-size:13px;color:var(--muted)}.main{flex:1;display:grid;grid-template-columns:1fr 230px 1.2fr;min-height:0}.pane{min-height:0;min-width:0;overflow:hidden;display:flex;flex-direction:column}.editor-pane{border-right:1px solid var(--border)}.editor{flex:1;min-height:0;overflow:auto}.editor .cm-editor{height:100%}.editor 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var(--border);border-radius:8px;padding:4px;display:flex;flex-direction:column;min-width:96px;box-shadow:0 8px 24px #0006}.export-pop button{background:none;border:none;color:var(--text);text-align:left;padding:7px 10px;border-radius:6px;font-size:13px;cursor:pointer}.export-pop button:hover,.export-pop a:hover{background:#ffffff0f}.export-pop a{color:var(--text);text-decoration:none;padding:7px 10px;border-radius:6px;font-size:13px}.identity{display:flex;align-items:center;gap:8px}.identity .who{font-size:12px;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.guest-badge{font-size:11px;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:2px 8px}.login-buttons{display:flex;flex-direction:column;gap:10px;margin-top:8px}.brand{text-decoration:none;color:var(--text)}.deck-name{font-size:13px;color:var(--muted);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border-left:1px solid 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