body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    background-color: #f8f9fa;
    color: #343a40;
    height: 100vh;
    overflow: hidden;
}

.container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

header {
    background-color: #dee2e6;
    padding: 10px 25px;
    border-bottom: 1px solid #ced4da;
    flex-shrink: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-grow: 1;
    min-width: 0;
}

.header-right {
    flex-shrink: 0;
    margin-left: 0;
}

h1 {
    margin: 0;
    font-size: 1.4em;
    color: #495057;
    white-space: nowrap;
}

.tabs {
    display: flex;
    flex-shrink: 0;
}

.tab-button {
    padding: 9px 18px;
    border: 1px solid #adb5bd;
    border-bottom: none;
    background-color: #e9ecef;
    cursor: pointer;
    border-radius: 5px 5px 0 0;
    margin-right: 6px;
    font-size: 0.95em;
    color: #495057;
    white-space: nowrap;
    transition: background-color 0.2s, border-color 0.2s;
}

.tab-button.active {
    background-color: #f8f9fa;
    border-color: #ced4da;
    border-bottom: 1px solid #f8f9fa;
    position: relative;
    top: 1px;
    font-weight: bold;
    color: #007bff;
}

.language-selector-container {
    margin-left: 10px;
}

#languageSelector {
    padding: 5px 8px;
    border-radius: 4px;
    border: 1px solid #adb5bd;
    background-color: #fff;
    font-size: 0.9em;
}

.external-links {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-left: auto;
    padding-left: 20px;
    flex-shrink: 0;
}

.external-links a {
    color: #495057;
    text-decoration: none;
    font-size: 0.9em;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s;
}
.external-links a:hover {
    color: #0056b3;
}
.external-links i {
    font-size: 1.2em;
}


.generate-button {
    padding: 9px 20px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.95em;
    font-weight: bold;
    transition: background-color 0.2s ease;
}

.generate-button:hover {
    background-color: #218838;
}

main.content {
    flex-grow: 1;
    overflow: hidden;
}

.tab-content {
    display: none;
    height: 100%;
    overflow-y: auto;
    box-sizing: border-box;
    padding: 0;
}

.tab-content.active {
    display: block;
}

.form-grid-3col {
    display: grid;
    grid-template-columns: 0.8fr 1.4fr 0.8fr;
    gap: 20px;
    padding: 20px;
    height: 100%;
    box-sizing: border-box;
}

.form-section {
    background-color: #ffffff;
    padding: 20px 25px;
    border: 1px solid #e9ecef;
    border-radius: 5px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    overflow: hidden;
}

.form-section-left {
    overflow-y: auto;
}
.form-section-center {}
.form-section-right {}

.form-section.scrollable {
    overflow-y: auto;
}

.easy-center-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 15px 20px;
    height: 100%;
    overflow: hidden;
    box-sizing: border-box;
}

.easy-center-top-left,
.easy-center-bottom-left {
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: 100%;
    box-sizing: border-box;
}

.easy-center-top-left {
    grid-column: 1 / 2;
    grid-row: 1 / 2;
}

.easy-center-bottom-left {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
}

.easy-center-top-left .form-group,
.easy-center-bottom-left .form-group {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    box-sizing: border-box;
    margin-bottom: 0;
}

.easy-center-top-left textarea,
.easy-center-bottom-left textarea {
    flex-grow: 1;
    height: 100%;
    box-sizing: border-box;
    min-height: 60px;
    resize: vertical;
}


.easy-center-right {
    grid-column: 2 / 3;
    grid-row: 1 / 3;
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: 100%;
    box-sizing: border-box;
}

.easy-center-right > label {
     margin-bottom: 5px;
     display: block;
     font-weight: 600;
     font-size: 0.9em;
     color: #495057;
     flex-shrink: 0;
}

.easy-center-right .scrollable-list {
    flex-grow: 1;
    height: 100%;
    box-sizing: border-box;
    min-height: 80px;
}

.scrollable-list {
     overflow-y: auto;
     border: 1px solid #e9ecef;
     padding: 10px;
     border-radius: 3px;
     background-color: #fff;
}

.scrollable-list .checkbox-grid-small {
     gap: 6px;
}

.form-section h2 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.15em;
    color: #007bff;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
    flex-shrink: 0;
}

.form-group {
    margin-bottom: 16px;
}
.form-group.compact {
    margin-bottom: 12px;
}
.form-group.flex-grow {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    margin-bottom: 0;
    min-height: 0;
}
.form-group.flex-grow textarea {
    flex-grow: 1;
}


.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.9em;
    color: #495057;
    flex-shrink: 0;
}

.form-group small {
    font-size: 0.8em;
    color: #6c757d;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 9px 10px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 0.9em;
}
.form-group select {
     padding: 8px 10px;
}

.form-group input:disabled,
.form-group select:disabled,
.form-group textarea:disabled {
    background-color: #e9ecef;
    cursor: not-allowed;
}

.form-row {
    display: flex;
    gap: 15px;
    margin-bottom: 16px;
}
.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}
.form-row .form-group label {
     white-space: nowrap;
}

.radio-group {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}
.radio-group input[type="radio"] {
    margin-right: 8px;
}
.radio-group label {
    margin-bottom: 0;
    font-weight: normal;
    margin-right: 10px;
    cursor: pointer;
}
.radio-group small {
     margin-left: auto;
     font-size: 0.85em;
     color: #6c757d;
}


.checkbox-subgroup {
    margin-bottom: 18px;
    padding-bottom: 18px;
    border-bottom: 1px solid #e9ecef;
}
.checkbox-subgroup:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}
.subgroup-label {
    display: block;
    font-weight: 700;
    font-size: 1.05em;
    margin-bottom: 15px;
    color: #2a6db1;
    border-bottom: 2px solid #a1c5ec;
    padding-bottom: 6px;
    user-select: none;
}

.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px;
}
.checkbox-grid-small {
     display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 8px;
}

.checkbox-group {
    display: flex;
    align-items: center;
    background-color: #eef3f8;
    padding: 8px 12px;
    border-radius: 4px;
    transition: background-color 0.2s;
    cursor: pointer;
}
.checkbox-group:hover {
    background-color: #e3eaf2;
}

.checkbox-group input[type="checkbox"] {
    margin-right: 10px;
    width: 17px;
    height: 17px;
    accent-color: #007bff;
    transform: scale(1.05);
    flex-shrink: 0;
}

.checkbox-group label {
    margin-bottom: 0;
    font-weight: normal;
    font-size: 0.9em;
    color: #343a40;
    pointer-events: none;
    flex-grow: 1;
    white-space: normal;
    user-select: none;
}

textarea {
    resize: vertical;
    min-height: 65px;
}

.list-settings-layout {
    display: flex;
    flex-direction: column;
    gap: 20px;
    flex-grow: 1;
    min-height: 0;
}

@media (min-width: 992px) {
    .list-settings-layout {
        flex-direction: row;
        gap: 25px;
    }
}

.list-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 0;
}

.list-column .form-group {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.list-column textarea {
    flex-grow: 1;
    min-height: 80px;
    resize: vertical;
}