.header-metadata.custom-layout {
    padding: 25px;
}

.sub-grid-group {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.field-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.field-group-mobile {
    flex: 1;
    display: flex;
    gap: 15px;
}

.field-item label {
    font-size: 0.85em;
    font-weight: 700;
    color: var(--bleu);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.field-item input,
.field-item select {
    width: 100%;
    font-size: 1.1em;
    padding: 10px 14px;
    border: 1px solid #ced4da;
    border-radius: 8px;
    background-color: #fdfdfd;
    font-weight: 600;
}

.header-bottom-area {
    display: flex;
    gap: 40px;
    align-items: center;
    border-top: 2px solid #f1f3f5;
    padding-top: 25px;
}

.header-selectors-stack {
    flex: 0 0 350px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.header-brand-logo {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.header-brand-logo img {
    max-width: 100%;
    max-height: 160px;
    height: auto;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.05));
}

.meta-field.vertical {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.meta-field.vertical label {
    font-size: 0.9em;
    font-weight: 700;
    color: var(--bleu);
    text-transform: uppercase;
}

.meta-field.vertical select {
    width: 100%;
    padding: 10px 14px;
    border-radius: 8px;
    border: 1px solid #ced4da;
    font-weight: 600;
    font-size: 1.05em;
}

.mobile-label {
    display: none;
}

.desktop-label,
.mobile-label {
    text-align: center;
}

/* Mobile specific layout according to user prompt */
@media (max-width: 800px) {
    .sub-grid-group {
        flex-direction: column;
        gap: 15px;
        margin-bottom: 0;
        border-bottom: 2px solid #f1f3f5;
        padding-bottom: 15px;
        margin-top: 15px;
    }

    .sub-grid-group:last-of-type {
        border-bottom: none;
    }

    .field-group-mobile {
        width: 100%;
    }

    .header-bottom-area {
        flex-direction: column;
        align-items: stretch;
        gap: 20px;
        padding-top: 15px;
    }

    .header-selectors-stack {
        flex: none;
        width: 100%;
    }

    .header-brand-logo img {
        max-height: 120px;
    }

    /* Conductor Sections Mobile */
    .conductor-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        padding-bottom: 15px;
        margin-bottom: 15px;
    }

    .conductor-meta {
        margin-left: 0;
        width: 100%;
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .measurements-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    .results-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px;
        padding: 10px;
    }

    .result-item {
        padding: 8px;
    }

    .desktop-label {
        display: none;
    }

    .mobile-label {
        display: inline-block;
    }
}

/* Base styles carried over */
.actions-card {
    background: #f8f9fa;
    border: 2px dashed #dee2e6;
    margin-top: 30px;
    padding: 20px;
}

.actions-grid {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-danger {
    background-color: #dc3545;
    color: white;
}

.btn i {
    margin-right: 8px;
}

.line-name-banner {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 25px;
    border-top: 4px solid var(--bleu);
}

.conductor-section {
    margin-bottom: 30px;
    border-left: 5px solid var(--bleu);
    padding: 25px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.conductor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid #f1f3f5;
    padding-bottom: 20px;
    margin-bottom: 25px;
}

.label-stack {
    display: flex;
    flex-direction: column;
}

.conductor-label {
    font-size: 1.6em;
    font-weight: 900;
    color: var(--bleu);
    letter-spacing: -0.5px;
    line-height: 1;
}

.conductor-ouvrage-sub {
    font-size: 0.85em;
    color: #666;
    font-weight: 600;
    margin-top: 2px;
}

.conductor-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
    flex-grow: 1;
    margin-left: 25px;
}

.meta-field {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

.meta-field label {
    font-size: 0.8em;
    font-weight: 700;
    color: #666;
    text-transform: uppercase;
}

.meta-field input,
.meta-field select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ced4da;
    border-radius: 6px;
    font-size: 0.95em;
    background-color: #fdfdfd;
}

.measurements-table {
    margin-bottom: 20px;
    width: 100%;
    border-collapse: collapse;
}

.measurements-table th,
.measurements-table td {
    padding: 10px;
    border: 1px solid #eee;
    text-align: center;
}


.measurements-table input {
    width: 100%;
    border: none;
    background: #f8f9fa;
    text-align: center;
    padding: 8px;
    border-radius: 4px;
}

.measurements-table input:focus {
    background: #fff;
    outline: 2px solid var(--bleu);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    background: #f4f7f9;
    padding: 15px;
    border-radius: 12px;
}

.result-item {
    background: #fff;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #e1e8ed;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.result-item label {
    font-size: 0.8em;
    margin-bottom: 5px;
    color: #777;
}

.result-item .value {
    font-weight: 700;
    font-size: 1.1em;
    color: #333;
}

.result-item.highlight {
    background: #e1f5fe;
    border-color: #03a9f4;
}

.result-item.highlight .value.important {
    color: #01579b;
    font-size: 1.4em;
}