.occ-calculator,
.occ-calculator * {
    box-sizing: border-box;
}

.occ-calculator {
    width: 100%;
    max-width: 980px;
    margin: 0 auto;
    padding: 24px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    font-family: Arial, Helvetica, sans-serif;
    color: #111827;
}

.occ-calculator-header {
    margin-bottom: 20px;
}

.occ-calculator h2 {
    margin: 0 0 6px;
    font-size: 30px;
    line-height: 1.2;
}

.occ-intro {
    margin: 0;
    color: #64748b;
    font-size: 15px;
    line-height: 1.45;
}

.occ-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 22px;
    align-items: start;
}

.occ-field {
    min-width: 0;
}

.occ-full-width {
    grid-column: 1 / -1;
}

.occ-field > label,
.occ-field-title {
    display: block;
    margin: 0 0 6px;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.3;
}

.occ-required {
    color: #dc2626;
}

.occ-field input[type="text"],
.occ-field input[type="email"],
.occ-field input[type="tel"],
.occ-field input[type="number"],
.occ-field select,
.occ-route-control select {
    display: block;
    width: 100%;
    height: 44px;
    margin: 0;
    padding: 8px 12px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    background: #ffffff;
    color: #111827;
    font-size: 14px;
    line-height: 1.2;
}

.occ-field input:focus,
.occ-field select:focus,
.occ-route-control select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.12);
}

.occ-route-control {
    min-height: 44px;
}

.occ-fixed-location {
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 44px;
    padding: 8px 12px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    background: #f8fafc;
    font-size: 14px;
    font-weight: 700;
}

.occ-radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 24px;
}

.occ-radio-group-horizontal {
    flex-direction: row;
}

.occ-radio-option,
.occ-checkbox-option {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.35;
}

.occ-radio-option input,
.occ-checkbox-option input {
    flex: 0 0 auto;
    width: 16px;
    height: 16px;
    margin: 0;
}

.occ-inline-fields {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 100px;
    gap: 10px;
}

.occ-field-description {
    display: block;
    margin-top: 5px;
    color: #64748b;
    font-size: 12px;
    line-height: 1.4;
}

.occ-section {
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid #e5e7eb;
}

.occ-section-title {
    margin-bottom: 10px;
    font-size: 14px;
    font-weight: 700;
}

.occ-options {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px 16px;
}

.occ-privacy {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid #e5e7eb;
}

.occ-privacy-option {
    align-items: flex-start;
    color: #475569;
    font-size: 12px;
    line-height: 1.45;
}

.occ-privacy-option input {
    margin-top: 1px;
}

.occ-privacy a {
    color: #1d4ed8;
}

.occ-form-actions {
    margin-top: 18px;
}

.occ-primary-button,
.occ-secondary-button {
    min-height: 42px;
    padding: 10px 18px;
    border: 0;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
}

.occ-primary-button {
    color: #ffffff;
    background: #1558a6;
}

.occ-primary-button:hover {
    background: #0f4788;
}

.occ-secondary-button {
    color: #ffffff;
    background: #ff7a00;
}

.occ-error {
    margin-top: 16px;
    padding: 10px 12px;
    border-radius: 6px;
    background: #fee2e2;
    color: #991b1b;
    font-size: 13px;
}

.occ-result {
    margin-top: 20px;
    padding: 18px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    background: #f8fafc;
}

.occ-result h3 {
    margin: 0 0 12px;
    font-size: 20px;
}

.occ-result-route {
    margin-bottom: 10px;
    font-size: 14px;
    font-weight: 700;
}

.occ-line,
.occ-summary-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 7px 0;
    border-bottom: 1px solid #e2e8f0;
    font-size: 13px;
}

.occ-total {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 2px solid #cbd5e1;
    font-size: 18px;
}

.occ-vat-note {
    margin-top: 8px;
}

.occ-actions {
    margin-top: 14px;
}

#occ_email_status {
    margin-left: 10px;
    font-size: 13px;
}

@media (max-width: 800px) {
    .occ-calculator {
        padding: 18px;
    }

    .occ-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .occ-full-width {
        grid-column: auto;
    }

    .occ-options {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 480px) {
    .occ-calculator {
        padding: 14px;
        border-radius: 8px;
    }

    .occ-calculator h2 {
        font-size: 24px;
    }

    .occ-options {
        grid-template-columns: 1fr;
    }

    .occ-inline-fields {
        grid-template-columns: 1fr 90px;
    }

    .occ-radio-group {
        flex-direction: column;
        gap: 8px;
    }
}