:root {
    --primary-color: #4a90d9;
    --primary-hover: #357abd;
    --secondary-color: #6c757d;
    --danger-color: #dc3545;
    --danger-hover: #c82333;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --background-color: #f5f7fa;
    --card-background: #ffffff;
    --border-color: #e1e5eb;
    --text-color: #333333;
    --text-muted: #6c757d;
    --required-color: #dc3545;
    --help-text-color: #6c757d;
    --section-bg: #f8f9fa;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1920px;
    margin: 0 auto;
    padding: 20px;
}

header {
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, var(--primary-color), #6366f1);
    color: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(74, 144, 217, 0.3);
}

.header-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.header-title {
    flex: 0 1 auto;
    text-align: center;
}

header h1 {
    font-size: 2rem;
    margin-bottom: 8px;
}

.subtitle {
    font-size: 1rem;
    opacity: 0.9;
}

.btn-help {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.2s;
    white-space: nowrap;
    min-width: 120px;
    max-width: 150px;
    text-align: center;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-help:hover {
    background-color: rgba(255, 255, 255, 0.3);
    border-color: white;
}

@media (max-width: 600px) {
    .header-content {
        flex-direction: column;
    }
    
    .btn-help {
        width: 100%;
        max-width: 200px;
    }
    
    header h1 {
        font-size: 1.5rem;
    }
}

.input-with-button .btn-small {
    min-width: 80px;
    max-width: 100px;
    white-space: nowrap;
    flex-shrink: 0;
}

.checkbox-group {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    padding: 10px 0;
}

.checkbox-group .checkbox-label {
    padding: 10px 16px;
    background-color: var(--section-bg);
    border-radius: 8px;
    border: 2px solid var(--border-color);
    transition: all 0.2s;
}

.checkbox-group .checkbox-label:hover {
    border-color: var(--primary-color);
}

.checkbox-group .checkbox-label:has(input[type="checkbox"]:checked) {
    border-color: var(--primary-color);
    background-color: rgba(74, 144, 217, 0.1);
}

.platform-inputs {
    margin-top: 15px;
    padding: 15px;
    background-color: var(--section-bg);
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
}

.platform-input-group {
    margin-bottom: 15px;
}

.platform-input-group:last-child {
    margin-bottom: 0;
}

.platform-input-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.platform-input-group .input-row {
    display: flex;
    gap: 10px;
    align-items: center;
}

.platform-input-group .input-row input {
    flex: 1;
}

.main-layout {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-columns {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.output-column {
    order: 2;
}

.form-section {
    background: var(--card-background);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
}

.form-section h2 {
    font-size: 1.25rem;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-icon {
    font-size: 1.2rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-color);
}

.required-mark {
    color: var(--required-color);
    margin-left: 2px;
}

.form-group input[type="text"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    background-color: #fff;
}

.form-group input[type="text"]:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #adb5bd;
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
    font-family: inherit;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236c757d' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

.input-with-option {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.input-with-option input[type="text"],
.input-with-option textarea {
    flex: 1;
    min-width: 200px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-weight: normal;
    font-size: 0.9rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.checkbox-label.standalone {
    padding: 10px 14px;
    background-color: var(--section-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.radio-group {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-weight: normal;
    font-size: 0.95rem;
    color: var(--text-color);
    padding: 10px 16px;
    background-color: var(--section-bg);
    border-radius: 8px;
    border: 2px solid var(--border-color);
    transition: all 0.2s;
}

.radio-label:hover {
    border-color: var(--primary-color);
}

.radio-label input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.radio-label input[type="radio"]:checked + span {
    color: var(--primary-color);
    font-weight: 600;
}

.radio-label:has(input[type="radio"]:checked) {
    border-color: var(--primary-color);
    background-color: rgba(74, 144, 217, 0.1);
}

.help-text {
    font-size: 0.85rem;
    color: var(--help-text-color);
    margin-top: 6px;
    line-height: 1.5;
}

.sub-options {
    margin-top: 15px;
    padding: 15px;
    background-color: var(--section-bg);
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
}

.form-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 0;
    padding: 20px;
    background: var(--card-background);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
}

.btn {
    padding: 12px 28px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(74, 144, 217, 0.3);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: #5a6268;
    transform: translateY(-1px);
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background-color: var(--danger-hover);
    transform: translateY(-1px);
}

.output-section {
    background: var(--card-background);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
    height: fit-content;
    position: sticky;
    top: 20px;
}

.output-section h2 {
    font-size: 1.25rem;
    margin-bottom: 16px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.output-container {
    margin-bottom: 16px;
}

#output {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: "Consolas", "Monaco", "Courier New", monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    background-color: #fafbfc;
    resize: vertical;
    min-height: 300px;
}

#output:focus {
    outline: none;
    border-color: var(--primary-color);
}

.output-actions {
    display: flex;
    justify-content: flex-end;
}

footer {
    text-align: center;
    margin-top: 30px;
    padding: 20px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-note {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--primary-color);
}

.form-group.required label::before {
    content: "";
}

.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    padding: 16px 24px;
    background-color: var(--success-color);
    color: white;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.toast-error {
    background-color: var(--danger-color);
}

.input-with-button {
    display: flex;
    gap: 10px;
    align-items: center;
}

.input-with-button input {
    flex: 1;
}

.date-input-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

.date-input-group .date-picker {
    width: auto;
    min-width: 150px;
}

.date-input-group input[type="text"] {
    flex: 1;
}

input[type="date"] {
    padding: 12px 14px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    background-color: #fff;
    cursor: pointer;
}

input[type="date"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.15);
}

.hint-box {
    margin-top: 10px;
    padding: 12px 16px;
    background-color: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 8px;
    color: #856404;
}

.hint-box p {
    margin: 0;
    font-size: 0.9rem;
}

.warning-box {
    margin-top: 10px;
    margin-bottom: 15px;
    padding: 12px 16px;
    background-color: #f8d7da;
    border: 1px solid var(--danger-color);
    border-radius: 8px;
    color: var(--danger-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.warning-box .warning-icon {
    font-size: 1.2rem;
}

.line-count {
    margin-left: 10px;
    font-size: 0.85rem;
    font-weight: normal;
    color: var(--text-muted);
    background-color: var(--section-bg);
    padding: 2px 8px;
    border-radius: 4px;
}

.line-count.error {
    color: var(--danger-color);
    background-color: #f8d7da;
    font-weight: 600;
}

.staff-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.staff-item {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 12px;
    background-color: var(--section-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.2s;
    flex-wrap: wrap;
    min-width: 0;
}

.staff-item:hover {
    border-color: var(--primary-color);
}

.staff-item.dragging {
    opacity: 0.5;
    border-style: dashed;
}

.staff-item .drag-handle {
    cursor: grab;
    padding: 5px 10px;
    color: var(--text-muted);
    font-size: 1.2rem;
    user-select: none;
    flex-shrink: 0;
}

.staff-item .drag-handle:active {
    cursor: grabbing;
}

.staff-item .staff-role {
    width: 100px;
    min-width: 80px;
    flex-shrink: 0;
}

.staff-item .staff-role-other {
    width: 80px;
    min-width: 60px;
    flex-shrink: 0;
}

.staff-item .staff-name {
    flex: 1;
    min-width: 100px;
}

.staff-item .staff-options {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.staff-item .btn-remove {
    padding: 6px 10px;
    background-color: transparent;
    border: none;
    color: var(--danger-color);
    cursor: pointer;
    font-size: 1.2rem;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.staff-item .btn-remove:hover {
    background-color: rgba(220, 53, 69, 0.1);
}

.staff-item input[type="text"],
.staff-item select {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9rem;
    transition: border-color 0.2s;
}

.staff-item input[type="text"]:focus,
.staff-item select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.staff-item .checkbox-label {
    font-size: 0.85rem;
    white-space: nowrap;
}

.staff-item .checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
}

.staff-item .staff-role-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 12 12'%3E%3Cpath fill='%236c757d' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 28px;
}

.staff-placeholder {
    padding: 20px;
    text-align: center;
    color: var(--text-muted);
    background-color: var(--section-bg);
    border: 2px dashed var(--border-color);
    border-radius: 8px;
}

.mv-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mv-item {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 12px;
    background-color: var(--section-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.2s;
    flex-wrap: wrap;
    min-width: 0;
}

.mv-item:hover {
    border-color: var(--primary-color);
}

.mv-item.dragging {
    opacity: 0.5;
    border-style: dashed;
}

.mv-item .mv-label {
    font-weight: 600;
    color: var(--primary-color);
    min-width: 60px;
    flex-shrink: 0;
}

.mv-item .mv-version {
    flex: 1;
    min-width: 100px;
}

.mv-item .mv-id {
    flex: 1;
    min-width: 150px;
}

.mv-item .drag-handle {
    cursor: grab;
    padding: 5px 10px;
    color: var(--text-muted);
    font-size: 1.2rem;
    user-select: none;
    flex-shrink: 0;
}

.mv-item .drag-handle:active {
    cursor: grabbing;
}

.mv-item .btn-remove {
    padding: 6px 10px;
    background-color: transparent;
    border: none;
    color: var(--danger-color);
    cursor: pointer;
    font-size: 1.2rem;
    border-radius: 4px;
    transition: background-color 0.2s;
    flex-shrink: 0;
}

.mv-item .btn-remove:hover {
    background-color: rgba(220, 53, 69, 0.1);
}

.mv-item input[type="text"] {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9rem;
    transition: border-color 0.2s;
}

.mv-item input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
}

.mv-item-original {
    background-color: rgba(74, 144, 217, 0.1);
    border-color: var(--primary-color);
}

.input-with-option {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.input-with-option input[type="text"],
.input-with-option textarea {
    flex: 1;
    min-width: 200px;
}

@media (min-width: 992px) {
    .main-layout {
        flex-direction: row;
        gap: 20px;
    }

    .form-columns {
        flex: 1;
        min-width: 0;
    }

    .output-column {
        order: 0;
        width: 400px;
        flex-shrink: 0;
    }

    .output-section {
        max-height: calc(100vh - 60px);
        overflow-y: auto;
    }

    #output {
        min-height: calc(100vh - 250px);
    }
}

@media (min-width: 1400px) {
    .form-columns {
        flex-direction: row;
    }

    .form-column-1,
    .form-column-2 {
        flex: 1;
        min-width: 0;
    }

    .output-column {
        width: 450px;
    }
}

@media (min-width: 1600px) {
    .container {
        padding: 30px 40px;
    }

    .output-column {
        width: 500px;
    }

    .form-section {
        padding: 28px;
    }
}

@media (max-width: 991px) {
    .container {
        padding: 15px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    .form-section {
        padding: 16px;
    }

    .input-with-option {
        flex-direction: column;
        align-items: stretch;
    }

    .input-with-option input[type="text"],
    .input-with-option textarea {
        min-width: auto;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .radio-group {
        flex-direction: column;
    }

    .date-input-group {
        flex-direction: column;
    }

    .date-input-group .date-picker {
        width: 100%;
    }
}

@media (max-width: 576px) {
    .staff-item {
        flex-wrap: wrap;
    }

    .staff-item .staff-role {
        width: 100%;
        min-width: auto;
    }

    .staff-item .staff-name {
        width: 100%;
    }

    .staff-item .staff-options {
        width: 100%;
        justify-content: space-between;
    }
}

.form-group input:focus:invalid {
    border-color: var(--danger-color);
}

.form-group.required input:invalid:not(:placeholder-shown) {
    border-color: var(--danger-color);
}

.highlight {
    animation: highlight 0.5s ease-out;
}

@keyframes highlight {
    0% {
        background-color: rgba(74, 144, 217, 0.2);
    }
    100% {
        background-color: transparent;
    }
}