#hc-gerilim-dusumu-hesaplama {
    background: #1e293b;
    color: #f1f5f9;
    border-radius: 16px;
    padding: 30px;
    font-family: 'Inter', sans-serif;
    max-width: 500px;
    margin: 20px auto;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

#hc-gerilim-dusumu-hesaplama .hc-header h3 {
    margin: 0 0 5px;
    color: #38bdf8;
    font-size: 1.4rem;
}

#hc-gerilim-dusumu-hesaplama .hc-header p {
    color: #94a3b8;
    font-size: 0.9rem;
    margin-bottom: 25px;
}

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

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

#hc-gerilim-dusumu-hesaplama label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.85rem;
    color: #e2e8f0;
}

#hc-gerilim-dusumu-hesaplama input[type="number"],
#hc-gerilim-dusumu-hesaplama select {
    width: 100%;
    padding: 12px;
    border: 1px solid #334155;
    border-radius: 8px;
    background: #0f172a;
    color: white;
}

#hc-gerilim-dusumu-hesaplama .hc-radio-group {
    display: flex;
    gap: 20px;
    padding: 10px 0;
}

#hc-gerilim-dusumu-hesaplama .hc-btn {
    width: 100%;
    background: #38bdf8;
    color: #0f172a;
    padding: 15px;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
}

#hc-gerilim-dusumu-hesaplama .hc-result {
    margin-top: 30px;
    padding: 20px;
    background: #0f172a;
    border-radius: 12px;
    display: none;
}

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

#hc-gerilim-dusumu-hesaplama .hc-res-summary {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
}

#hc-gerilim-dusumu-hesaplama .hc-res-item {
    text-align: center;
}

#hc-gerilim-dusumu-hesaplama .hc-res-label {
    display: block;
    font-size: 0.75rem;
    color: #94a3b8;
    text-transform: uppercase;
}

#hc-gerilim-dusumu-hesaplama .hc-res-item strong {
    font-size: 1.5rem;
    color: #38bdf8;
}

#hc-gerilim-dusumu-hesaplama .hc-res-final {
    text-align: center;
    padding: 10px;
    background: #1e293b;
    border-radius: 6px;
    font-size: 0.9rem;
}

#hc-gerilim-dusumu-hesaplama .hc-gd-status {
    margin-top: 15px;
    padding: 10px;
    border-radius: 6px;
    font-size: 0.85rem;
    text-align: center;
}

#hc-gerilim-dusumu-hesaplama .hc-gd-status.success { background: #064e3b; color: #6ee7b7; }
#hc-gerilim-dusumu-hesaplama .hc-gd-status.error { background: #7f1d1d; color: #fca5a5; }