.izolatii-calculator {
    max-width: 980px;
    margin: 30px auto;
    padding: 28px;
    border-radius: 22px;
    background: #ffffff;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
    border: 1px solid rgba(15, 23, 42, 0.08);
    font-family: inherit;
}

.izolatii-calculator * {
    box-sizing: border-box;
}

.izolatii-calculator__header {
    margin-bottom: 22px;
}

.izolatii-calculator__badge {
    display: inline-block;
    margin-bottom: 10px;
    padding: 6px 12px;
    border-radius: 999px;
    background: #e8f7df;
    color: #3a7b18;
    font-size: 13px;
    font-weight: 700;
}

.izolatii-calculator h2,
.izolatii-calculator h3 {
    margin: 0 0 10px;
    color: #112033;
}

.izolatii-calculator p {
    margin: 0;
    color: #5c6675;
}

.izolatii-calculator__grid,
.izolatii-calculator__form-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.izolatii-calculator__form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 18px;
}

.izolatii-calculator label span {
    display: block;
    margin-bottom: 7px;
    color: #263445;
    font-weight: 700;
}

.izolatii-calculator input,
.izolatii-calculator select {
    width: 100%;
    min-height: 48px;
    padding: 12px 14px;
    border: 1px solid #d8dee8;
    border-radius: 12px;
    background: #ffffff;
    color: #1f2937;
    font-size: 15px;
}

.izolatii-calculator input:focus,
.izolatii-calculator select:focus {
    outline: none;
    border-color: #91cf3e;
    box-shadow: 0 0 0 4px rgba(145, 207, 62, 0.18);
}

.izolatii-calculator small {
    display: block;
    margin-top: 6px;
    color: #7a8493;
}

.izolatii-calculator__result {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin: 22px 0;
}

.izolatii-calculator__result > div {
    padding: 20px;
    border-radius: 18px;
    background: linear-gradient(135deg, #075597, #0b6dbf);
    color: #ffffff;
}

.izolatii-calculator__result span {
    display: block;
    margin-bottom: 8px;
    opacity: 0.9;
}

.izolatii-calculator__result strong {
    display: block;
    font-size: 28px;
    line-height: 1.2;
}

.izolatii-calculator__form {
    padding: 22px;
    border-radius: 18px;
    background: #f7fafc;
    border: 1px solid #e6edf4;
}

.izolatii-calculator button {
    margin-top: 18px;
    width: 100%;
    min-height: 52px;
    border: 0;
    border-radius: 14px;
    background: #91cf3e;
    color: #ffffff;
    font-weight: 800;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

.izolatii-calculator button:hover {
    transform: translateY(-1px);
    opacity: 0.95;
}

.izolatii-calculator__message {
    margin-bottom: 18px;
    padding: 14px 16px;
    border-radius: 12px;
    font-weight: 700;
}

.izolatii-calculator__message--success {
    background: #e8f7df;
    color: #3a7b18;
}

.izolatii-calculator__message--error {
    background: #fee2e2;
    color: #991b1b;
}

@media (max-width: 768px) {
    .izolatii-calculator {
        padding: 20px;
    }

    .izolatii-calculator__grid,
    .izolatii-calculator__form-grid,
    .izolatii-calculator__result {
        grid-template-columns: 1fr;
    }

    .izolatii-calculator__result strong {
        font-size: 24px;
    }
}