.cable-calc-wrapper * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.cable-calc-wrapper {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 20px 0;
}

.cable-calc-container {
    background: white;
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    padding: 40px;
    max-width: 500px;
    margin: 0 auto;
}

.cable-calc-container h1 {
    color: #333;
    margin-bottom: 10px;
    font-size: 28px;
    text-align: center;
}

.cable-calc-subtitle {
    color: #666;
    text-align: center;
    margin-bottom: 30px;
    font-size: 14px;
}

.cable-calc-input-group {
    margin-bottom: 25px;
}

.cable-calc-input-group label {
    display: block;
    color: #555;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
}

.cable-calc-input-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s;
}

.cable-calc-input-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.cable-calc-unit {
    color: #888;
    font-size: 13px;
    margin-top: 5px;
}

.cable-calc-button {
    width: 100%;
    padding: 15px;
    background: #669c9b;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
}

.cable-calc-button:hover {
    background: #578a89;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 156, 155, 0.3);
}

.cable-calc-button:active {
    transform: translateY(0);
}

.cable-calc-result {
    margin-top: 30px;
    padding: 25px;
    background: transparent;
    border: 3px solid #669c9b;
    border-radius: 15px;
    display: none;
    color: #333;
}

.cable-calc-result.show {
    display: block;
    animation: slideIn 0.4s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cable-calc-result h2 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #669c9b;
}

.cable-calc-result-value {
    font-size: 36px;
    font-weight: bold;
    margin: 10px 0;
    color: #669c9b;
}

.cable-calc-result-detail {
    font-size: 14px;
    margin-top: 10px;
    line-height: 1.6;
    color: #555;
}

.cable-calc-warning {
    background: #fff3cd;
    color: #856404;
    padding: 15px;
    border-radius: 10px;
    margin-top: 15px;
    font-size: 13px;
    border-left: 4px solid #ffc107;
}

@media (max-width: 600px) {
    .cable-calc-container {
        padding: 25px;
    }
    
    .cable-calc-container h1 {
        font-size: 24px;
    }
}