#pec-devis-app {
    max-width: 900px;
    margin: 40px auto;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}
.pec-container {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    padding: 40px;
}
.pec-step {
    display: none;
}
.pec-step.pec-active {
    display: block;
}
.pec-step h2 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 28px;
}
.pec-step p {
    color: #666;
    margin-bottom: 30px;
}
.pec-step label {
    display: block;
    font-weight: 600;
    margin: 15px 0 5px;
    color: #34495e;
}
.pec-step input[type="text"],
.pec-step input[type="email"],
.pec-step input[type="tel"],
.pec-step select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}
.pec-step input:focus,
.pec-step select:focus {
    border-color: #667eea;
    outline: none;
}
.pec-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin: 30px 0;
}
.pec-card {
    padding: 25px;
    border: 3px solid #e0e0e0;
    border-radius: 12px;
    cursor: pointer;
    text-align: center;
    transition: all 0.3s;
}
.pec-card:hover {
    border-color: #667eea;
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(102, 126, 234, 0.2);
}
.pec-card.selected {
    border-color: #27ae60;
    background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
}
.pec-icon {
    font-size: 54px;
    margin-bottom: 15px;
}
.pec-card h3 {
    font-size: 18px;
    margin: 10px 0;
    color: #2c3e50;
}
.pec-card p {
    font-size: 14px;
    color: #666;
    margin: 10px 0;
}
.pec-price {
    font-weight: bold;
    color: #667eea;
    margin-top: 10px;
    font-size: 16px;
}
.pec-btn,
.pec-btn-sec {
    padding: 14px 32px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
    margin-right: 10px;
}
.pec-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}
.pec-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}
.pec-btn-sec {
    background: #ecf0f1;
    color: #2c3e50;
}
.pec-btn-sec:hover {
    background: #bdc3c7;
}
.pec-result {
    text-align: center;
    padding: 40px 20px;
}
#pec-result-price {
    font-size: 52px;
    font-weight: bold;
    color: #27ae60;
    margin: 25px 0;
}
#pec-loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
}
.pec-loader {
    border: 5px solid #f3f3f3;
    border-top: 5px solid #667eea;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
@media (max-width: 768px) {
    .pec-container {
        padding: 20px;
    }
    .pec-grid {
        grid-template-columns: 1fr;
    }
    #pec-result-price {
        font-size: 36px;
    }
}