.fraccalc-container{font-family:'Inter',system-ui,-apple-system,sans-serif;max-width:900px;margin:20px auto;border:3px solid #111;border-radius:12px;box-shadow:6px 6px 0 #111;padding:30px;background:#fff;color:#111;box-sizing:border-box}.fraccalc-container *{box-sizing:border-box}.fraccalc-title{font-family:'Montserrat',sans-serif;font-size:2rem;text-align:center;text-transform:uppercase;margin-top:0;margin-bottom:10px;font-weight:900}.fraccalc-desc{text-align:center;color:#444;font-weight:600;margin-bottom:30px;line-height:1.5}.fraccalc-grid{display:flex;flex-direction:column;gap:30px}.fraccalc-card{border:3px solid #111;border-radius:10px;padding:25px;box-shadow:4px 4px 0 #111}.bg-yellow{background-color:#fdfd96}.bg-green{background-color:#e2f0cb}.fraccalc-card-header{font-family:'Montserrat',sans-serif;font-size:1.2rem;font-weight:900;margin:0 0 20px 0;border-bottom:3px dashed #111;padding-bottom:10px;text-transform:uppercase}.fraccalc-workspace{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap}.fraccalc-input-block{display:flex;flex-direction:column;width:100px}.fraccalc-input{width:100%;padding:12px 10px;font-size:1.2rem;font-weight:800;text-align:center;font-family:'Courier New',Courier,monospace;border:3px solid #111;border-radius:6px;outline:none;background-color:#fff;box-shadow:inset 2px 2px 0 rgb(0 0 0 / .05)}.fraccalc-input:focus{border-color:#2d7bb5;background-color:#e6f7ff}.fraccalc-divider{border:none;border-top:3px solid #111;margin:5px 0;width:100%}.fraccalc-operator-block{display:flex;align-items:center;justify-content:center}.fraccalc-select{padding:10px;font-size:1.5rem;font-weight:900;border:3px solid #111;border-radius:6px;background-color:#fff;cursor:pointer;outline:none;box-shadow:3px 3px 0 #111}.fraccalc-btn-action{background-color:#111;color:#fff;font-family:'Montserrat',sans-serif;font-weight:900;font-size:1.1rem;padding:15px 20px;border:3px solid #111;border-radius:8px;cursor:pointer;box-shadow:3px 3px 0 #666;transition:transform 0.1s}.fraccalc-btn-action:active{transform:translate(3px,3px);box-shadow:0 0 0 #666}.fraccalc-result-block{min-width:120px;background-color:#fff;border:3px dashed #111;border-radius:8px;padding:15px;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100px}.fraccalc-empty{font-size:2rem;font-weight:900;color:#ccc}.fraccalc-fraction-display{display:flex;flex-direction:column;align-items:center;font-family:'Montserrat',monospace;font-size:1.8rem;font-weight:900;color:#e05a47}.fraccalc-res-num,.fraccalc-res-den{padding:5px}.fraccalc-res-divider{border:none;border-top:3px solid #e05a47;margin:0;width:100%}.fraccalc-error{margin-top:15px;color:#e05a47;font-weight:800;font-size:.95rem;text-align:center;display:none;background-color:#ffe6e6;border:2px dashed #e05a47;padding:10px;border-radius:6px}@media (max-width:650px){.fraccalc-workspace{flex-direction:column;gap:15px}.fraccalc-operator-block,.fraccalc-btn-action{transform:rotate(90deg);margin:10px 0}.calc-mode{flex-direction:row;flex-wrap:wrap}.calc-mode .fraccalc-btn-action{transform:none;width:100%;margin-top:10px}}