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20px;display:flex;position:sticky;top:0}.sheet-opt-back{color:var(--primary-color);white-space:nowrap;font-size:14px;text-decoration:none}.sheet-opt-back:hover{text-decoration:underline}.sheet-opt-title{color:var(--primary-color);white-space:nowrap;margin:0;font-size:18px;font-weight:600}.sheet-opt-controls{flex-wrap:wrap;align-items:flex-end;gap:12px;margin-left:auto;display:flex}.sheet-opt-label{color:var(--text-color);flex-direction:column;gap:3px;font-size:12px;font-weight:500;display:flex}.sheet-opt-select,.sheet-opt-input{border:1px solid var(--border-color);background:var(--panel-bg);color:var(--text-color);border-radius:4px;padding:5px 8px;font-size:13px}.sheet-opt-input-wide{width:100px}.sheet-opt-input-narrow{width:60px}.sheet-opt-btn{border:1px solid var(--border-color);background:var(--panel-bg);color:var(--text-color);cursor:pointer;white-space:nowrap;border-radius:4px;align-self:flex-end;padding:6px 14px;font-size:13px}.sheet-opt-btn:hover{background:var(--hover-bg)}.sheet-opt-btn:disabled{opacity:.45;cursor:not-allowed}.sheet-opt-btn-primary{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.sheet-opt-btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover)}.sheet-opt-error{background:var(--error-bg);color:var(--error-color);border-radius:4px;margin:16px 20px 0;padding:10px 14px;font-size:14px}.sheet-opt-status{color:var(--text-color);opacity:.6;text-align:center;margin:40px auto;font-size:16px}.sheet-opt-stats{flex-wrap:wrap;gap:12px;padding:16px 20px 0;display:flex}.stat-card{background:var(--panel-bg);border:1px solid var(--border-color);text-align:center;min-width:100px;box-shadow:var(--shadow);border-radius:6px;padding:12px 20px}.stat-val{color:var(--primary-color);font-size:22px;font-weight:700;line-height:1.2}.stat-lbl{color:var(--text-color);opacity:.7;text-transform:uppercase;letter-spacing:.04em;margin-top:2px;font-size:11px}.sheet-opt-legend{flex-wrap:wrap;gap:10px;padding:12px 20px 0;display:flex}.legend-item{color:var(--text-color);align-items:center;gap:6px;font-size:13px;display:flex}.legend-dot{border-radius:3px;flex-shrink:0;width:14px;height:14px}.sheet-opt-sheets{flex-flow:wrap;justify-content:center;gap:16px;padding:16px 20px 24px;display:flex}.sheet-card{background:var(--panel-bg);border:1px solid var(--border-color);box-shadow:var(--shadow);border-radius:6px;flex:none;overflow:hidden}.sheet-card-title{border-bottom:1px solid var(--border-color);color:var(--text-color);align-items:baseline;gap:10px;padding:10px 14px;font-size:14px;font-weight:600;display:flex}.sheet-card-dims{opacity:.65;font-size:12px;font-weight:400}@media (prefers-color-scheme:dark){.sheet-opt-header{background:#2d2d2d;border-bottom-color:#444}}.user-info{align-items:center;gap:15px;margin-left:auto;padding:0 10px;display:flex}.user-welcome{color:var(--text-color);white-space:nowrap;font-size:13px}.logout-button{background-color:var(--error-color);color:#fff;border:1px solid var(--error-color);cursor:pointer;border-radius:4px;padding:4px 10px;font-size:12px;font-weight:500}.logout-button:hover{opacity:.85}