/* Kalkulator Windows 98 */
.calculator {
    padding: 4px !important;
    background: #c0c0c0;
    font-family: 'MS Sans Serif', 'Tahoma', sans-serif;
}

/* Wyświetlacz */
.calculator-display {
    margin-bottom: 4px;
    border: 2px inset #c0c0c0;
    background: #ffffff;
    padding: 4px;
}

#calc-display {
    width: 100%;
    border: none;
    background: transparent;
    font-size: 16px;
    font-family: 'Courier New', monospace;
    text-align: right;
    padding: 2px 4px;
    outline: none;
    color: #000000;
}

/* Kontener przycisków */
.calculator-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
}

/* Podstawowe style przycisków */
.calc-btn {
    height: 24px;
    border: 2px outset #c0c0c0;
    background: #c0c0c0;
    font-family: 'MS Sans Serif', 'Tahoma', sans-serif;
    font-size: 11px;
    cursor: pointer;
    user-select: none;
}

.calc-btn:hover {
    background: #dfdfdf;
}

.calc-btn:active {
    border: 2px inset #c0c0c0;
    background: #a0a0a0;
}

/* Przyciski numerów */
.calc-btn.number {
    font-weight: bold;
    font-size: 12px;
}

/* Przycisk zero (szerszy) */
.calc-btn.zero {
    grid-column: span 2;
}

/* Przyciski operatorów */
.calc-btn.operator {
    background: #dfdfdf;
    font-weight: bold;
}

.calc-btn.operator:hover {
    background: #f0f0f0;
}

/* Przycisk równa się */
.calc-btn.equals {
    background: #0000ff;
    color: white;
    font-weight: bold;
    grid-row: span 2;
    grid-column: 4;
}

.calc-btn.equals:hover {
    background: #0000cc;
}

.calc-btn.equals:active {
    background: #000088;
}

/* Przyciski clear */
.calc-btn.clear {
    background: #ff8080;
    font-weight: bold;
}

.calc-btn.clear:hover {
    background: #ffaaaa;
}

/* Przyciski pamięci */
.calc-btn.memory {
    background: #80ff80;
    font-size: 9px;
    font-weight: bold;
}

.calc-btn.memory:hover {
    background: #aaffaa;
}

/* Responsywność */
@media (max-width: 768px) {
    .calc-btn {
        height: 22px;
        font-size: 10px;
    }
    
    #calc-display {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .calc-btn {
        height: 20px;
        font-size: 9px;
    }
    
    #calc-display {
        font-size: 12px;
    }
    
    .calc-btn.memory {
        font-size: 8px;
    }
}

/* Easter egg button - przycisk 711 */
.calc-btn.easter-egg {
    grid-column: span 4; /* Rozciąga się na wszystkie 4 kolumny */
   background: #c0c0c0;
    font-weight: bold;
    font-size: 12px;
    color: #000000; /* Ciemnoniebieski tekst */
}

.calc-btn.easter-egg:hover {
    background: #ffff99;
}

.calc-btn.easter-egg:active {
    border: 2px inset #c0c0c0;
    background: #ffff60;
}

/* Responsywność dla easter egg */
@media (max-width: 768px) {
    .calc-btn.easter-egg {
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .calc-btn.easter-egg {
        font-size: 10px;
    }
}