/* ============================================
   Weld Calculator - TuttoSaldatura.it
   Brand: #DB1221, Poppins, PT Serif
   ============================================ */

.weldcalc-wrapper {
    max-width: 780px;
    margin: 30px auto;
    font-family: 'Poppins', sans-serif;
}

.weldcalc-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    padding: 36px 32px;
    border-top: 4px solid #DB1221;
}

.weldcalc-header {
    text-align: center;
    margin-bottom: 28px;
}

.weldcalc-title {
    font-family: 'PT Serif', serif;
    font-size: 26px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 8px 0;
}

.weldcalc-subtitle {
    font-size: 15px;
    color: #666;
    margin: 0;
}

/* Form */
.weldcalc-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}

.weldcalc-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: #333;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.weldcalc-field select {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 15px;
    font-family: 'Poppins', sans-serif;
    color: #333;
    background: #fafafa;
    transition: border-color 0.2s;
    appearance: auto;
    cursor: pointer;
}

.weldcalc-field select:focus {
    outline: none;
    border-color: #DB1221;
    background: #fff;
}

.weldcalc-btn {
    display: block;
    width: 100%;
    padding: 14px;
    background: #DB1221;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 700;
    font-family: 'Poppins', sans-serif;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.weldcalc-btn:hover {
    background: #b80f1c;
}

.weldcalc-btn:active {
    transform: scale(0.98);
}

/* Results */
.weldcalc-results {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 2px solid #f0f0f0;
}

.weldcalc-results.weldcalc-visible {
    display: block !important;
    animation: weldcalcFadeIn 0.5s ease-out;
}

@keyframes weldcalcFadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.weldcalc-results-title {
    font-family: 'PT Serif', serif;
    font-size: 20px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 18px 0;
    text-align: center;
}

.weldcalc-results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.weldcalc-result-item {
    background: #f8f8f8;
    border-radius: 8px;
    padding: 14px 16px;
    border-left: 3px solid #DB1221;
}

.weldcalc-result-label {
    font-size: 12px;
    font-weight: 600;
    color: #777;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 4px;
}

.weldcalc-result-value {
    font-size: 18px;
    font-weight: 700;
    color: #DB1221;
    font-family: 'PT Serif', serif;
}

/* Product recommendations */
.weldcalc-products {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.weldcalc-products-title {
    font-family: 'PT Serif', serif;
    font-size: 18px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 14px 0;
}

.weldcalc-products-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.weldcalc-product-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    color: #DB1221;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: background 0.2s, box-shadow 0.2s;
}

.weldcalc-product-link:hover {
    background: #fee2e2;
    box-shadow: 0 2px 8px rgba(219, 18, 33, 0.15);
    color: #b80f1c;
    text-decoration: none;
}

.weldcalc-product-link svg {
    flex-shrink: 0;
}

/* Disclaimer */
.weldcalc-disclaimer {
    margin-top: 20px;
    padding: 14px 16px;
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-radius: 8px;
    font-size: 13px;
    color: #92400e;
    line-height: 1.5;
}

/* Responsive */
@media (max-width: 640px) {
    .weldcalc-card {
        padding: 24px 18px;
    }

    .weldcalc-form-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .weldcalc-results-grid {
        grid-template-columns: 1fr;
    }

    .weldcalc-title {
        font-size: 22px;
    }

    .weldcalc-products-list {
        flex-direction: column;
    }
}