#hc-atom-hesaplama {
    background: #ffffff;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    font-family: 'Inter', sans-serif;
    max-width: 500px;
    margin: 20px auto;
    border: 1px solid #e2e8f0;
}

#hc-atom-hesaplama .hc-header h3 {
    margin: 0 0 10px;
    color: #1e293b;
    font-size: 1.4rem;
}

#hc-atom-hesaplama .hc-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 25px;
}

#hc-atom-hesaplama .full-width {
    grid-column: span 2;
}

#hc-atom-hesaplama label {
    display: block;
    margin-bottom: 6px;
    font-weight: 700;
    color: #475569;
    font-size: 0.8rem;
}

#hc-atom-hesaplama input {
    width: 100%;
    padding: 12px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    background: #f8fafc;
}

#hc-atom-hesaplama .hc-btn {
    width: 100%;
    background: #4f46e5;
    color: white;
    padding: 14px;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
}

#hc-atom-hesaplama .hc-result {
    margin-top: 30px;
    padding: 25px;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    display: none;
}

#hc-atom-hesaplama .hc-result.visible {
    display: block;
}

#hc-atom-hesaplama .hc-atom-summary {
    display: flex;
    align-items: center;
    gap: 40px;
}

#hc-atom-hesaplama .hc-atom-viz {
    display: grid;
    grid-template-columns: auto auto;
    grid-template-rows: auto auto;
    font-family: serif;
    background: white;
    padding: 15px;
    border-radius: 12px;
    border: 2px solid #e2e8f0;
}

#hc-atom-hesaplama .hc-symbol {
    grid-column: 2;
    grid-row: 1 / 3;
    font-size: 3rem;
    font-weight: 700;
    padding-left: 5px;
    line-height: 1;
}

#hc-atom-hesaplama .hc-a-num {
    font-size: 1rem;
    font-weight: 700;
    align-self: end;
}

#hc-atom-hesaplama .hc-z-num {
    font-size: 1rem;
    font-weight: 700;
    align-self: start;
}

#hc-atom-hesaplama .hc-q-num {
    position: absolute;
    top: 5px;
    right: -10px;
    font-size: 0.9rem;
    font-weight: 800;
    color: #ef4444;
}

#hc-atom-hesaplama .hc-atom-viz {
    position: relative;
}

#hc-atom-hesaplama .hc-particle-list {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#hc-atom-hesaplama .hc-particle-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
    color: #64748b;
}

#hc-atom-hesaplama .hc-particle-item strong {
    color: #1e293b;
    font-size: 1.1rem;
}