.calculator-page{color:#4b5563;padding:40px 0;font-family:system-ui,-apple-system,sans-serif;position:relative}.calculator-change{grid-template-columns:repeat(3,1fr);gap:10px;width:40%;display:grid}.calculator-btn{text-align:center;cursor:pointer;color:#000;background-color:#fff;border:1px solid #eaeaea;border-radius:16px;padding:10px 5px;font-size:16px;font-weight:500;text-decoration:none;transition:background-color .3s,color .3s,border-color .3s,box-shadow .3s}.calculator-btn:hover{color:#2563eb;background-color:#f8fafc;border-color:#2563eb}.calculator-btn.active{color:#fff;background-color:#2563eb;border-color:#2563eb;box-shadow:0 4px 12px #2563eb33}.calculator-btn.active:hover{background-color:#1d4ed8;border-color:#1d4ed8}.unit-toggle{background-color:#e2e8f0;border-radius:8px;margin-left:12px;padding:4px;display:inline-flex}.toggle-btn{color:#64748b;cursor:pointer;background:0 0;border:none;border-radius:6px;padding:6px 12px;font-size:.875rem;font-weight:600;transition:all .2s}.toggle-btn:hover{color:#0f172a}.toggle-btn.active{color:#2563eb;background-color:#fff;box-shadow:0 1px 3px #0000001a}.calculator-body{margin-top:2rem}.calculator-screen-container{background-color:#fff;border:1px solid #eaeaea;border-radius:8px;padding:24px;box-shadow:0 2px 8px #0000000a}.input-group{justify-content:center;align-items:center;gap:.5rem;width:100%;margin-bottom:2rem;display:flex}.function-label{color:#0f172a;margin:0;font-family:Courier New,Courier,monospace;font-size:1.75rem;font-weight:500}.parenthesis{color:#94a3b8;font-size:2rem;font-weight:300}.calculator-input{color:#0f172a;text-align:center;background-color:#f8fafc;border:2px solid #cbd5e1;border-radius:8px;outline:none;width:140px;padding:10px 16px;font-size:1.5rem;font-weight:600;transition:all .2s ease-in-out;box-shadow:inset 0 1px 2px #0000000d}.calculator-input:focus{background-color:#fff;border-color:#2563eb;box-shadow:0 0 0 3px #2563eb33}.calculator-input::placeholder{color:#94a3b8;font-style:italic;font-weight:400}.solve-btn{color:#fff;cursor:pointer;background-color:#2563eb;border:none;border-radius:8px;width:100%;margin-top:1rem;padding:14px 24px;font-size:1.125rem;font-weight:600;transition:all .2s ease-in-out;box-shadow:0 4px 6px -1px #2563eb33,0 2px 4px -1px #2563eb1a}.solve-btn:hover{background-color:#1d4ed8;transform:translateY(-1px);box-shadow:0 10px 15px -3px #2563eb4d,0 4px 6px -2px #2563eb26}.solve-btn:active{transform:translateY(1px);box-shadow:0 2px 4px -1px #2563eb33}.solve-btn:disabled{cursor:not-allowed;box-shadow:none;background-color:#94a3b8;transform:none}.calculator-result{background-color:#f3f4f6;border-radius:6px;min-height:80px;margin-top:24px;padding:16px}.result-display-container{background-color:#f8fafc;border:2px solid #e2e8f0;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;min-height:120px;padding:24px;display:flex}.result-display{color:#0f172a;text-align:center;word-break:break-all;background-color:#f8fafc;border:2px solid #e2e8f0;border-radius:8px;justify-content:center;align-items:center;min-height:90px;padding:24px;font-size:1.75rem;font-weight:700;display:flex;overflow-x:auto;box-shadow:inset 0 2px 4px #00000005}.result-toggle-wrapper{align-items:center;gap:12px;margin-top:16px;display:flex}.calculator-result .placeholder-text{color:#94a3b8;border:none;min-height:auto;margin:0;padding:0;font-weight:500}.calculator-controls{background-color:#fff;border:1px solid #eaeaea;border-radius:8px;padding:24px}.controls-heading{color:#111827;margin-bottom:12px;font-size:16px;font-weight:600}.button-grid{grid-template-columns:repeat(2,1fr);gap:8px;display:grid}.button-grid button{cursor:pointer;color:#4b5563;background-color:#fff;border:1px solid #e5e7eb;border-radius:6px;padding:10px;font-weight:500;transition:all .2s}.button-grid button:hover{color:#2563eb;background-color:#f8fafc;border-color:#2563eb}