:root {
    --escady-yellow: #ffc800;
    --escady-dark: #000000;
    --bg-card: #f8fafc;
    --border-color: #e2e8f0;
    --text-dark: #0f172a;
    --text-muted: #64748b;
}

.sc-container {
    background: #ffffff; 
    border-radius: 12px; 
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
    overflow: hidden; 
    font-family: inherit;
    max-width: 680px; 
    margin: 20px auto; 
    border: 1px solid var(--border-color);
}

.sc-header { 
    background: var(--escady-dark); 
    padding: 24px; 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 20px; 
    color: #ffffff; 
    border-bottom: 4px solid var(--escady-yellow);
}

.sc-title-group label { 
    font-size: 11px; 
    letter-spacing: 1.2px; 
    font-weight: 700;
    display: block; 
    margin-bottom: 8px; 
    color: var(--escady-yellow); 
}

#motor_phase, #power_unit {
    background: rgba(255, 255, 255, 0.08); 
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 10px 14px; 
    border-radius: 8px; 
    color: #ffffff; 
    width: 100%; 
    outline: none; 
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
}

#motor_phase option, #power_unit option { 
    color: var(--text-dark); 
    background: #ffffff; 
}

.sc-body { padding: 32px; }
.sc-row { display: flex; align-items: center; gap: 15px; margin-bottom: 20px; }
.sc-col { flex: 1; }

.sc-input-wrapper {
    position: relative; 
    border: 1.5px solid var(--border-color); 
    border-radius: 8px;
    display: flex; 
    align-items: center; 
    padding: 6px 14px; 
    background: #ffffff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.sc-input-wrapper:focus-within { 
    border-color: var(--escady-dark); 
    box-shadow: 0 0 0 3px rgba(30, 41, 59, 0.1);
}

.sc-label-float {
    position: absolute; 
    top: -9px; 
    left: 10px; 
    background: #ffffff;
    padding: 0 6px; 
    font-size: 10px; 
    font-weight: 700; 
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.sc-input-wrapper input {
    border: none; 
    background: transparent; 
    width: 100%; 
    padding: 8px 0;
    font-size: 17px; 
    font-weight: 600; 
    color: var(--text-dark); 
    outline: none; 
    text-align: right;
}

.sc-unit-power, .sc-signal-unit { 
    font-size: 13px; 
    color: var(--text-muted); 
    min-width: 32px; 
    font-weight: 700; 
    margin-left: 8px;
    text-align: right;
}

.sc-divider { 
    border: 0; 
    border-top: 1px solid var(--border-color); 
    margin: 28px 0; 
}

.sc-result-box { 
    text-align: center; 
    background: var(--bg-card); 
    padding: 16px; 
    border-radius: 10px; 
    border: 1px solid var(--border-color);
    border-bottom: 4px solid var(--escady-yellow); 
}

.sc-result-box label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.8px;
    color: var(--text-muted);
    display: block;
    margin-bottom: 4px;
}

#motor_res { 
    font-size: 34px; 
    font-weight: 800; 
    color: var(--escady-dark); 
}

@media (max-width: 600px) {
    .sc-row { flex-direction: column; }
    .sc-header { grid-template-columns: 1fr; gap: 12px; }
    .sc-body { padding: 20px; }
}