:root{--bg-color:#f8fafc;--text-color:#0f172a;--primary-color:#4f46e5;--secondary-color:#ec4899;--card-bg:#fff;--border-color:#e2e8f0;--success-color:#10b981}[data-theme=dark]{--bg-color:#0f172a;--text-color:#f8fafc;--primary-color:#6366f1;--secondary-color:#f43f5e;--card-bg:#1e293b;--border-color:#334155;--success-color:#10b981}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}body{background-color:var(--bg-color);color:var(--text-color);min-height:100vh;transition:background-color .3s,color .3s}.app-container{max-width:1200px;margin:0 auto;padding:2rem}.header{justify-content:space-between;align-items:center;margin-bottom:3rem;display:flex}.btn{cursor:pointer;border:none;border-radius:.5rem;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{opacity:.9;transform:translateY(-2px)}.btn-secondary{border:1px solid var(--border-color);color:var(--text-color);background-color:#0000}.btn-secondary:hover{background-color:var(--card-bg)}.card{background-color:var(--card-bg);border:1px solid var(--border-color);border-radius:1rem;padding:2rem;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.text-center{text-align:center}.mt-4{margin-top:1rem}.mt-8{margin-top:2rem}.mb-4{margin-bottom:1rem}.tooltip-container{cursor:help;border-bottom:2px dotted var(--primary-color);display:inline-block;position:relative}.tooltip-text{visibility:hidden;background-color:var(--text-color);width:max-content;max-width:250px;color:var(--bg-color);text-align:center;z-index:1;opacity:0;border-radius:6px;padding:8px 12px;font-size:.875rem;font-weight:500;transition:opacity .3s;position:absolute;bottom:125%;left:50%;transform:translate(-50%);box-shadow:0 10px 15px -3px #0000001a}.tooltip-text:after{content:"";border-style:solid;border-width:5px;border-color:var(--text-color) transparent transparent transparent;margin-left:-5px;position:absolute;top:100%;left:50%}.tooltip-container:hover .tooltip-text{visibility:visible;opacity:1}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:.5s forwards fadeIn}