:root{--bg-dark:#050510;--card:#ffffff08;--input-bg:#ffffff0d;--cyan:#22d3ee;--purple:#a855f7;--text-main:#fff;--text-dim:#88a;--text-muted:#666;--border:#ffffff14;--accent:var(--calc-color-math);--font-main:"Inter", sans-serif;--font-mono:"JetBrains Mono", monospace}[data-theme=light]{--bg-dark:#e8edf5;--card:#fffffff2;--input-bg:#e8eef4;--cyan:#0891b2;--purple:#7c3aed;--text-main:#0f172a;--text-dim:#334155;--text-muted:#64748b;--border:#0000001a;--accent:var(--calc-color-math)}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--calc-bg-page);color:var(--calc-text-primary);font-family:var(--font-main);min-height:100vh;line-height:1.6;transition:background .3s,color .3s}.dashboard-container{max-width:1600px;margin:0 auto;padding:1.5rem}.calc-breadcrumb{color:var(--calc-text-muted);margin-bottom:.75rem;font-size:.8rem}.calc-breadcrumb a{color:var(--calc-text-dim);text-decoration:none}.calc-breadcrumb a:hover{color:var(--calc-cyan)}.calc-breadcrumb span{margin:0 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