/* Atomic Mass Calculator CSS */
.atomic-mass-calculator-instance {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #F5F5F5;
    color: #222222;
    line-height: 1.6;
    padding: 20px;
    min-height: 100vh;
}

.atomic-mass-calculator-instance .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    max-width: 1600px;
    margin: 0 auto;
}

@media (max-width: 1024px) {
    .atomic-mass-calculator-instance .container {
        grid-template-columns: 1fr;
    }
}

.atomic-mass-calculator-instance .panel {
    background-color: #E0E0E0;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border: 2px solid #333;
}

.atomic-mass-calculator-instance .panel-title {
    color: #222222;
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 25px;
    padding-bottom: 12px;
    border-bottom: 2px solid #333;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.atomic-mass-calculator-instance .input-group {
    margin-bottom: 22px;
}

.atomic-mass-calculator-instance .input-label {
    display: block;
    color: #222222;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 1rem;
}

.atomic-mass-calculator-instance .input-field {
    width: 100%;
    padding: 14px 16px;
    background-color: #f9f9f9;
    border: 2px solid #333;
    border-radius: 8px;
    font-size: 1rem;
    color: #222222;
    transition: border-color 0.3s;
    height: 50px;
}

.atomic-mass-calculator-instance .input-field:focus {
    outline: none;
    border-color: #4A90E2;
}

.atomic-mass-calculator-instance .input-field.error {
    border-color: #d32f2f;
}

.atomic-mass-calculator-instance .button-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.atomic-mass-calculator-instance .button {
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    min-width: 120px;
    text-align: center;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.atomic-mass-calculator-instance .button-primary {
    background-color: #4A90E2;
    color: white;
}

.atomic-mass-calculator-instance .button-secondary {
    background-color: #FF9500;
    color: white;
}

.atomic-mass-calculator-instance .button-neutral {
    background-color: #333;
    color: white;
}

.atomic-mass-calculator-instance .button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.atomic-mass-calculator-instance .result-section {
    display: none;
}

.atomic-mass-calculator-instance .result-section.visible {
    display: block;
}

.atomic-mass-calculator-instance .result-box {
    background-color: #f9f9f9;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    border: 2px solid #333;
}

.atomic-mass-calculator-instance .result-title {
    color: #222222;
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.atomic-mass-calculator-instance .result-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: #4A90E2;
    margin-bottom: 10px;
}

.atomic-mass-calculator-instance .step-container {
    margin: 25px 0;
    border-left: 3px solid #4A90E2;
    padding-left: 20px;
}

.atomic-mass-calculator-instance .step-title {
    font-weight: 600;
    color: #222222;
    margin-bottom: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
}

.atomic-mass-calculator-instance .step-content {
    margin-top: 10px;
    padding: 15px;
    background-color: rgba(255,255,255,0.5);
    border-radius: 6px;
    border: 1px solid #ddd;
}

.atomic-mass-calculator-instance .analysis-box {
    background-color: rgba(255, 249, 196, 0.3);
    border-left: 4px solid #FF9500;
    padding: 18px;
    margin: 20px 0;
}

.atomic-mass-calculator-instance .comment-box {
    background-color: rgba(232, 245, 255, 0.3);
    border-left: 4px solid #4A90E2;
    padding: 18px;
    margin: 20px 0;
}

.atomic-mass-calculator-instance .warning {
    color: #d32f2f;
    font-weight: 600;
    margin: 10px 0;
}

.atomic-mass-calculator-instance .success {
    color: #388e3c;
    font-weight: 600;
    margin: 10px 0;
}

.atomic-mass-calculator-instance .batch-controls {
    margin-top: 25px;
    padding-top: 25px;
    border-top: 2px solid #333;
}

.atomic-mass-calculator-instance .csv-preview {
    max-height: 300px;
    overflow-y: auto;
    margin: 15px 0;
    border: 2px solid #333;
    border-radius: 6px;
    background-color: #f9f9f9;
}

.atomic-mass-calculator-instance table {
    width: 100%;
    border-collapse: collapse;
}

.atomic-mass-calculator-instance th,
.atomic-mass-calculator-instance td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.atomic-mass-calculator-instance th {
    background-color: rgba(0,0,0,0.05);
    font-weight: 600;
}

.atomic-mass-calculator-instance .chart-container {
    margin: 25px 0;
    height: 300px;
    position: relative;
}

.atomic-mass-calculator-instance .trademark {
    position: fixed;
    bottom: 20px;
    right: 20px;
    font-size: 0.85rem;
    color: #666;
    z-index: 1000;
    background-color: rgba(245, 245, 245, 0.9);
    padding: 5px 10px;
    border-radius: 4px;
    border: 1px solid #ddd;
}

.atomic-mass-calculator-instance .colorblind-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
}

.atomic-mass-calculator-instance .switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.atomic-mass-calculator-instance .switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.atomic-mass-calculator-instance .slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.atomic-mass-calculator-instance .slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

.atomic-mass-calculator-instance input:checked + .slider {
    background-color: #4A90E2;
}

.atomic-mass-calculator-instance input:checked + .slider:before {
    transform: translateX(30px);
}

/* Colorblind mode adaptations */
.atomic-mass-calculator-instance.colorblind-mode .button-primary {
    background-color: #0066CC;
    border: 2px solid #003366;
}

.atomic-mass-calculator-instance.colorblind-mode .button-secondary {
    background-color: #CC6600;
    border: 2px solid #663300;
}

.atomic-mass-calculator-instance.colorblind-mode .button-neutral {
    background-color: #333333;
    border: 2px solid #000000;
}

.atomic-mass-calculator-instance.colorblind-mode .input-field {
    border-style: solid;
    border-width: 2px;
}

.atomic-mass-calculator-instance.colorblind-mode .result-value {
    color: #0066CC;
    text-decoration: underline;
}

/* Shape indicators for colorblind mode */
.atomic-mass-calculator-instance.colorblind-mode .button-primary::after {
    content: "■";
    margin-left: 8px;
    font-size: 0.8em;
}

.atomic-mass-calculator-instance.colorblind-mode .button-secondary::after {
    content: "▲";
    margin-left: 8px;
    font-size: 0.8em;
}

.atomic-mass-calculator-instance.colorblind-mode .button-neutral::after {
    content: "●";
    margin-left: 8px;
    font-size: 0.8em;
}

@media (max-width: 768px) {
    .atomic-mass-calculator-instance .container {
        padding: 10px;
        gap: 20px;
    }
    
    .atomic-mass-calculator-instance .panel {
        padding: 18px;
    }
    
    .atomic-mass-calculator-instance .button-group {
        flex-direction: column;
    }
    
    .atomic-mass-calculator-instance .button {
        width: 100%;
    }
    
    .atomic-mass-calculator-instance .panel-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
}

.atomic-mass-calculator-instance .formula-details {
    font-family: monospace;
    background-color: rgba(0,0,0,0.05);
    padding: 12px;
    border-radius: 6px;
    margin: 10px 0;
    border: 1px solid #ddd;
}

.atomic-mass-calculator-instance .nested-step {
    margin-left: 20px;
    border-left: 2px solid #FF9500;
    padding-left: 15px;
    margin-top: 15px;
}