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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2em;
    color: #2563eb;
}

.header-actions {
    display: flex;
    gap: 10px;
}

.search-bar {
    margin-bottom: 20px;
}

.search-input {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    outline: none;
    transition: border-color 0.2s;
}

.search-input:focus {
    border-color: #2563eb;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.skill-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.skill-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.skill-card h3 {
    margin-bottom: 10px;
    color: #2563eb;
    font-size: 1.3em;
}

.skill-description {
    color: #666;
    margin-bottom: 15px;
    font-size: 0.9em;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-bottom: 15px;
}

.tag {
    background: #e0e7ff;
    color: #4338ca;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85em;
}

.skill-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s;
}

.btn-primary {
    background: #2563eb;
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
}

.btn-secondary {
    background: #6b7280;
    color: white;
}

.btn-secondary:hover {
    background: #4b5563;
}

.btn-danger {
    background: #dc2626;
    color: white;
}

.btn-danger:hover {
    background: #b91c1c;
}

.btn-small {
    padding: 6px 12px;
    font-size: 12px;
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: #9ca3af;
}

.editor {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 20px;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e5e7eb;
}

.editor-header h2 {
    color: #2563eb;
}

.editor-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.skill-name-input {
    padding: 8px 12px;
    border: 2px solid #e5e7eb;
    border-radius: 6px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.skill-name-input:focus {
    border-color: #2563eb;
}

.skill-name-input:disabled {
    background: #f3f4f6;
    color: #6b7280;
}

.editor-textarea {
    width: 100%;
    min-height: 500px;
    padding: 15px;
    border: 2px solid #e5e7eb;
    border-radius: 6px;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.5;
    resize: vertical;
    outline: none;
    transition: border-color 0.2s;
}

.editor-textarea:focus {
    border-color: #2563eb;
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid #e5e7eb;
}

.tab {
    padding: 10px 20px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #6b7280;
    transition: color 0.2s;
}

.tab:hover {
    color: #2563eb;
}

.tab.active {
    color: #2563eb;
    border-bottom-color: #2563eb;
}

.resource-section {
    margin-bottom: 30px;
}

.resource-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.resource-section-header h3 {
    font-size: 1.2em;
    color: #2563eb;
}

.resource-list {
    background: #f9fafb;
    border-radius: 6px;
    padding: 15px;
}

.resource-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background: white;
    border-radius: 4px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.resource-item:hover {
    background: #f3f4f6;
}

.resource-item-info {
    flex: 1;
}

.resource-item-name {
    font-weight: 500;
    color: #333;
}

.resource-item-meta {
    font-size: 0.85em;
    color: #6b7280;
    margin-top: 4px;
}

.resource-item-actions {
    display: flex;
    gap: 8px;
}

.file-upload-area {
    border: 2px dashed #d1d5db;
    border-radius: 6px;
    padding: 20px;
    text-align: center;
    background: #f9fafb;
    cursor: pointer;
    transition: border-color 0.2s;
}

.file-upload-area:hover {
    border-color: #2563eb;
}

.file-upload-area.dragover {
    border-color: #2563eb;
    background: #eff6ff;
}

.skill-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
}

.read-only-badge {
    background: #fef3c7;
    color: #92400e;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75em;
    font-weight: 500;
}

.read-only-warning {
    background: #fef3c7;
    border: 1px solid #fbbf24;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
    color: #92400e;
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.full-width {
    width: 100%;
}

.error-message {
    color: #dc2626;
    font-size: 0.875em;
    margin-top: 4px;
}

.required-indicator {
    color: #dc2626;
}

.form-textarea {
    width: 100%;
    padding: 8px;
    border: 2px solid #e5e7eb;
    border-radius: 6px;
    min-height: 80px;
    resize: vertical;
}

.empty-resource-state {
    text-align: center;
    padding: 20px;
    color: #9ca3af;
}