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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

main {
    padding: 30px;
}

section {
    margin-bottom: 40px;
    padding: 25px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

h2 {
    color: #1e3c72;
    margin-bottom: 20px;
    font-size: 1.8rem;
    border-bottom: 3px solid #667eea;
    padding-bottom: 10px;
}

h3 {
    color: #2a5298;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.template-selector {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

#templateSelect {
    flex: 1;
    padding: 12px 15px;
    font-size: 1rem;
    border: 2px solid #ddd;
    border-radius: 6px;
    background: white;
    cursor: pointer;
    transition: border-color 0.3s;
}

#templateSelect:focus {
    outline: none;
    border-color: #667eea;
}

.btn {
    padding: 12px 24px;
    font-size: 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 600;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.3);
}

.btn-success {
    background: #10b981;
    color: white;
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(16, 185, 129, 0.3);
}

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

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

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.template-preview {
    padding: 20px;
    background: white;
    border-radius: 6px;
    border: 1px solid #ddd;
}

.template-text {
    white-space: pre-wrap;
    font-family: 'Courier New', monospace;
    line-height: 1.8;
    color: #333;
    padding: 15px;
    background: #fafafa;
    border-left: 4px solid #667eea;
    border-radius: 4px;
}

.hidden {
    display: none;
}

#formFields {
    display: grid;
    gap: 20px;
    margin-bottom: 25px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 8px;
    color: #374151;
}

.form-group input,
.form-group textarea {
    padding: 12px;
    font-size: 1rem;
    border: 2px solid #ddd;
    border-radius: 6px;
    transition: border-color 0.3s;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

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

.form-actions {
    display: flex;
    gap: 15px;
}

.library-list {
    display: grid;
    gap: 15px;
}

.document-item {
    background: white;
    padding: 20px;
    border-radius: 8px;
    border: 2px solid #e5e7eb;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.document-item:hover {
    border-color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.document-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1e3c72;
}

.document-date {
    font-size: 0.9rem;
    color: #6b7280;
    margin-top: 5px;
}

.empty-message {
    text-align: center;
    color: #9ca3af;
    font-style: italic;
    padding: 40px;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    border-radius: 12px;
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-header {
    padding: 25px;
    border-bottom: 2px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #6b7280;
    line-height: 1;
    transition: color 0.3s;
}

.close-btn:hover {
    color: #ef4444;
}

.modal-body {
    padding: 25px;
    overflow-y: auto;
    flex: 1;
}

.document-text {
    white-space: pre-wrap;
    line-height: 1.8;
    color: #1f2937;
    font-size: 1rem;
}

.modal-footer {
    padding: 20px 25px;
    border-top: 2px solid #e5e7eb;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .template-selector {
        flex-direction: column;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .modal-content {
        width: 95%;
        max-height: 95vh;
    }
}