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1547 lines (1387 loc) · 53.5 KB
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# RDF TALOS Graph Viewer
# Christophe Roche : roche.university@gmail.com
# Version: 23/08/2025
import os
import tempfile
import webbrowser
import threading
import uuid
import html
import atexit
import shutil
from flask import Flask, request, render_template_string, session
from rdflib import Graph, URIRef, Namespace, Literal
from rdflib.namespace import OWL, DC, RDF, RDFS
# Namespaces
RDFS = Namespace("http://www.w3.org/2000/01/rdf-schema#")
OTV = Namespace("http://www.ontologia.fr/OTB/otv#")
DCTERMS = Namespace("http://purl.org/dc/terms/")
# HTML templates (unchanged, but would be better as separate template files)
HOME_PAGE = """
<!DOCTYPE html>
<html>
<head>
<title>RDF Graph Viewer</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background: #F5F5F5;
min-height: 100vh;
display: flex;
align-items: center;
justify-content: center;
color: #333;
}
.container {
background: white;
border-radius: 20px;
box-shadow: 0 20px 40px rgba(0,0,0,0.1);
padding: 40px;
max-width: 500px;
width: 90%;
text-align: center;
}
h1 {
color: #667eea;
margin-bottom: 30px;
font-size: 2.5rem;
font-weight: 300;
}
.emoji { font-size: 3rem; margin-bottom: 20px; }
p {
color: #666;
margin-bottom: 25px;
font-size: 1.1rem;
line-height: 1.5;
}
.file-upload {
position: relative;
display: inline-block;
margin-bottom: 25px;
width: 100%;
}
.file-input {
position: absolute;
opacity: 0;
width: 100%;
height: 100%;
cursor: pointer;
}
.file-label {
display: block;
padding: 15px 25px;
background: linear-gradient(45deg, #667eea, #764ba2);
color: white;
border-radius: 50px;
cursor: pointer;
transition: all 0.3s ease;
font-size: 1rem;
font-weight: 500;
}
.file-label:hover {
transform: translateY(-2px);
box-shadow: 0 8px 25px rgba(102,126,234,0.4);
}
.submit-btn {
background: linear-gradient(45deg, #4CAF50, #45a049);
color: white;
padding: 12px 30px;
border: none;
border-radius: 50px;
font-size: 1rem;
font-weight: 500;
cursor: pointer;
transition: all 0.3s ease;
width: 100%;
}
.submit-btn:hover {
transform: translateY(-2px);
box-shadow: 0 8px 25px rgba(76,175,80,0.4);
}
.submit-btn:disabled {
background: #ccc;
cursor: not-allowed;
transform: none;
box-shadow: none;
}
</style>
</head>
<body>
<div class="container">
<h1><strong>TALOS RDF Graph Viewer</strong></h1>
<p><strong>TALOS-AI4SSH</strong> - <a href="https://talos-ai4ssh.uoc.gr/" target="_blank" rel="noopener">www.talos-ai4ssh.uoc.gr</a></p>
<form method="post" action="/upload" enctype="multipart/form-data">
<div class="file-upload">
<input type="file" name="rdf_file" accept=".rdf,.xml,.ttl,.jsonld" required class="file-input" id="fileInput">
<label for="fileInput" class="file-label" id="fileLabel">
📁 Select RDF File
</label>
</div>
<input type="submit" value="📤 Upload and Analyze" class="submit-btn" id="submitBtn" disabled>
</form>
</div>
<script>
document.getElementById('fileInput').addEventListener('change', function(e) {
const label = document.getElementById('fileLabel');
const submitBtn = document.getElementById('submitBtn');
if (e.target.files.length > 0) {
const fileName = e.target.files[0].name;
label.textContent = '✅ ' + fileName;
label.style.background = 'linear-gradient(45deg, #4CAF50, #45a049)';
submitBtn.disabled = false;
} else {
label.textContent = '📁 Select RDF File';
label.style.background = 'linear-gradient(45deg, #667eea, #764ba2)';
submitBtn.disabled = true;
}
});
</script>
</body>
</html>
"""
UPLOAD_SUCCESS_PAGE = """
<!DOCTYPE html>
<html>
<head>
<title>File Uploaded</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background: #F5F5F5;
min-height: 100vh;
display: flex;
align-items: center;
justify-content: center;
color: #333;
}
.container {
background: white;
border-radius: 20px;
box-shadow: 0 20px 40px rgba(0,0,0,0.1);
padding: 40px;
max-width: 600px;
width: 90%;
text-align: center;
}
h1 {
color: #4CAF50;
margin-bottom: 20px;
font-size: 2rem;
font-weight: 300;
}
.emoji { font-size: 3rem; margin-bottom: 20px; }
p {
color: #666;
margin-bottom: 30px;
font-size: 1.1rem;
line-height: 1.5;
}
.btn {
display: inline-block;
padding: 12px 25px;
margin: 10px;
border: none;
border-radius: 50px;
font-size: 1rem;
font-weight: 500;
cursor: pointer;
transition: all 0.3s ease;
text-decoration: none;
color: white;
width: calc(100% - 20px);
}
.btn-info {
background: linear-gradient(45deg, #FF9800, #F57C00);
}
.btn-primary {
background: linear-gradient(45deg, #2196F3, #1976D2);
}
.btn-success {
background: linear-gradient(45deg, #4CAF50, #45a049);
}
.btn:hover {
transform: translateY(-2px);
box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}
input[type="submit"] {
border: none;
background: none;
font: inherit;
color: inherit;
width: 100%;
}
.metadata-section {
text-align: left;
margin-top: 20px;
background: #f8f9ff;
border-radius: 10px;
padding: 20px;
border: 1px solid #e0e4e7;
}
details {
margin: 10px 0;
border: 1px solid #ddd;
border-radius: 8px;
overflow: hidden;
}
summary {
background: #f5f5f5;
padding: 12px 15px;
cursor: pointer;
font-weight: 500;
color: #333;
transition: background 0.3s;
}
summary:hover {
background: #e8e8e8;
}
.metadata-content {
padding: 15px;
background: white;
}
.metadata-item {
margin: 8px 0;
padding: 8px;
background: #f9f9f9;
border-radius: 4px;
border-left: 3px solid #2196F3;
}
.metadata-label {
font-weight: 600;
color: #2196F3;
display: block;
margin-bottom: 4px;
}
.metadata-value {
color: #555;
word-break: break-word;
}
.namespace-item {
font-family: 'Courier New', monospace;
font-size: 0.9em;
background: #f5f5f5;
padding: 8px;
margin: 5px 0;
border-radius: 4px;
border-left: 3px solid #FF9800;
}
.namespace-prefix {
font-weight: bold;
color: #FF9800;
}
.namespace-uri {
color: #666;
}
.namespace-uri a {
color: #2196F3;
text-decoration: none;
}
.namespace-uri a:hover {
text-decoration: underline;
}
.stats-item {
margin: 8px 0;
padding: 8px;
background: #f0f8ff;
border-radius: 4px;
border-left: 3px solid #4CAF50;
}
.stats-label {
font-weight: 600;
color: #4CAF50;
display: inline-block;
min-width: 150px;
}
.stats-value {
color: #555;
font-weight: 500;
}
</style>
</head>
<body>
<div class="container">
<div class="emoji">✅</div>
<h1>File uploaded successfully!</h1>
<p>Your RDF file has been analyzed. You can now choose properties to visualize, view the complete graph, or explore metadata.</p>
<form method="get" action="/select" style="margin-bottom: 15px;">
<input type="hidden" name="path" value="{{ path }}">
<button type="submit" class="btn btn-primary">
🎛️ Select Properties
</button>
</form>
<form method="post" action="/view" style="margin-bottom: 15px;">
<input type="hidden" name="rdf_path" value="{{ path }}">
<input type="hidden" name="selected_props" value="__ALL__">
<button type="submit" class="btn btn-success">
🚀 View Graph
</button>
</form>
<form method="get" action="/sparql" target="_blank" style="margin-bottom: 15px;">
<input type="hidden" name="path" value="{{ path }}">
<button type="submit" class="btn btn-primary">
🔍 SPARQL Endpoint
</button>
</form>
<button id="metadataBtn" class="btn btn-info" onclick="toggleMetadata()">
📋 Show Metadata
</button>
<div id="metadataSection" class="metadata-section" style="display: none;">
<details>
<summary>📊 Graph Statistics</summary>
<div class="metadata-content">
<div class="stats-item">
<span class="stats-label">Total triples:</span>
<span class="stats-value">{{ graph_stats.total_triples }}</span>
</div>
<div class="stats-item">
<span class="stats-label">Object properties:</span>
<span class="stats-value">{{ graph_stats.object_properties }}</span>
</div>
<div class="stats-item">
<span class="stats-label">Data properties:</span>
<span class="stats-value">{{ graph_stats.data_properties }}</span>
</div>
<div class="stats-item">
<span class="stats-label">Annotation properties:</span>
<span class="stats-value">{{ graph_stats.annotation_properties }}</span>
</div>
</div>
</details>
{% if dublin_core_metadata %}
<details>
<summary>📖 Dublin Core Metadata ({{ dublin_core_metadata|length }} items)</summary>
<div class="metadata-content">
{% for item in dublin_core_metadata %}
<div class="metadata-item">
<span class="metadata-label">{{ item.property }}</span>
<span class="metadata-value">{{ item.value }}</span>
</div>
{% endfor %}
</div>
</details>
{% endif %}
<details>
<summary>🏷️ Declared Namespaces ({{ namespaces|length }} found)</summary>
<div class="metadata-content">
{% for ns in namespaces %}
<div class="namespace-item">
<span class="namespace-prefix">{{ ns.prefix }}:</span>
<span class="namespace-uri"><a href="{{ ns.uri }}" target="_blank">{{ ns.uri }}</a></span>
</div>
{% endfor %}
</div>
</details>
</div>
</div>
<script>
function toggleMetadata() {
const section = document.getElementById('metadataSection');
const btn = document.getElementById('metadataBtn');
if (section.style.display === 'none') {
section.style.display = 'block';
btn.textContent = '📋 Hide Metadata';
} else {
section.style.display = 'none';
btn.textContent = '📋 Show Metadata';
}
}
</script>
</body>
</html>
"""
SELECT_PAGE = """
<!DOCTYPE html>
<html>
<head>
<title>Property Selection</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background: #F5F5F5;
min-height: 100vh;
padding: 20px;
color: #333;
}
.container {
max-width: 800px;
margin: 0 auto;
background: white;
border-radius: 20px;
box-shadow: 0 20px 40px rgba(0,0,0,0.1);
padding: 40px;
}
h1 {
color: #2196F3;
text-align: center;
margin-bottom: 30px;
font-size: 2.5rem;
font-weight: 300;
}
.section {
margin-bottom: 35px;
background: #f8f9ff;
border-radius: 15px;
padding: 25px;
border-left: 5px solid #2196F3;
}
.section h2 {
color: #1976D2;
margin-bottom: 15px;
font-size: 1.5rem;
font-weight: 500;
display: flex;
align-items: center;
gap: 10px;
}
.select-all {
background: linear-gradient(45deg, #FF9800, #F57C00);
color: white;
border: none;
padding: 8px 15px;
border-radius: 20px;
font-size: 0.9rem;
cursor: pointer;
transition: all 0.3s ease;
margin-left: auto;
}
.select-all:hover {
transform: translateY(-1px);
box-shadow: 0 4px 12px rgba(255,152,0,0.3);
}
.property-item {
display: flex;
align-items: center;
padding: 12px 15px;
margin: 8px 0;
background: white;
border-radius: 10px;
border: 1px solid #e0e0e0;
transition: all 0.3s ease;
word-break: break-all;
}
.property-item:hover {
background: #f0f7ff;
border-color: #2196F3;
transform: translateX(5px);
}
.property-checkbox {
margin-right: 15px;
transform: scale(1.2);
accent-color: #2196F3;
}
.property-label {
font-size: 0.95rem;
color: #555;
flex: 1;
}
.submit-container {
text-align: center;
margin-top: 40px;
padding-top: 30px;
border-top: 2px solid #e0e0e0;
}
.submit-btn {
background: linear-gradient(45deg, #4CAF50, #45a049);
color: white;
padding: 15px 40px;
border: none;
border-radius: 50px;
font-size: 1.1rem;
font-weight: 500;
cursor: pointer;
transition: all 0.3s ease;
}
.submit-btn:hover {
transform: translateY(-2px);
box-shadow: 0 8px 25px rgba(76,175,80,0.4);
}
.stats {
text-align: center;
margin-bottom: 30px;
padding: 20px;
background: linear-gradient(45deg, #E8F5E8, #F1F8E9);
border-radius: 15px;
color: #2E7D32;
}
</style>
</head>
<body>
<div class="container">
<h1>🎛️ Property Selection</h1>
<div class="stats">
<strong>📊 Properties found:</strong>
{{ object_properties|length }} objects • {{ data_properties|length }} data • {{ annotation_properties|length }} annotations
</div>
<form method="post" action="/view">
<input type="hidden" name="rdf_path" value="{{ path }}">
{% if object_properties %}
<div class="section">
<h2>
🔗 Object Properties ({{ object_properties|length }})
<button type="button" class="select-all" onclick="toggleCategory('object-prop', this)">Select All</button>
</h2>
{% for prop in object_properties %}
<div class="property-item">
<input type="checkbox" class="property-checkbox object-prop" name="selected_props" value="{{ prop }}" id="obj_{{ loop.index }}">
<label class="property-label" for="obj_{{ loop.index }}">{{ prop }}</label>
</div>
{% endfor %}
</div>
{% endif %}
{% if data_properties %}
<div class="section">
<h2>
📄 Data Properties ({{ data_properties|length }})
<button type="button" class="select-all" onclick="toggleCategory('data-prop', this)">Select All</button>
</h2>
{% for prop in data_properties %}
<div class="property-item">
<input type="checkbox" class="property-checkbox data-prop" name="selected_props" value="{{ prop }}" id="data_{{ loop.index }}">
<label class="property-label" for="data_{{ loop.index }}">{{ prop }}</label>
</div>
{% endfor %}
</div>
{% endif %}
{% if annotation_properties %}
<div class="section">
<h2>
💬 Annotation Properties ({{ annotation_properties|length }})
<button type="button" class="select-all" onclick="toggleCategory('anno-prop', this)">Select All</button>
</h2>
{% for prop in annotation_properties %}
<div class="property-item">
<input type="checkbox" class="property-checkbox anno-prop" name="selected_props" value="{{ prop }}" id="anno_{{ loop.index }}">
<label class="property-label" for="anno_{{ loop.index }}">{{ prop }}</label>
</div>
{% endfor %}
</div>
{% endif %}
<div class="submit-container">
<button type="submit" class="submit-btn">🚀 Generate Graph</button>
</div>
</form>
</div>
<script>
function toggleCategory(categoryClass, button) {
const checkboxes = document.querySelectorAll("." + categoryClass);
const allChecked = Array.from(checkboxes).every(cb => cb.checked);
checkboxes.forEach(cb => cb.checked = !allChecked);
button.textContent = allChecked ? 'Select All' : 'Deselect All';
button.style.background = allChecked ?
'linear-gradient(45deg, #FF9800, #F57C00)' :
'linear-gradient(45deg, #f44336, #d32f2f)';
}
// Improve interaction with labels
document.querySelectorAll('.property-item').forEach(item => {
item.addEventListener('click', function(e) {
if (e.target.type !== 'checkbox') {
const checkbox = item.querySelector('input[type="checkbox"]');
checkbox.checked = !checkbox.checked;
}
});
});
</script>
</body>
</html>
"""
# Create a dedicated temporary directory for our files
TEMP_DIR = tempfile.mkdtemp(prefix="rdf_viewer_")
# File mapping dictionary (in production, use a proper database)
file_mappings = {}
app = Flask(__name__)
app.secret_key = os.urandom(24) # Needed for session management
def detect_format(file_path):
ext = os.path.splitext(file_path)[1].lower()
if ext in [".rdf", ".xml"]:
return "xml"
elif ext == ".ttl":
return "turtle"
elif ext == ".jsonld":
return "json-ld"
else:
return None
def extract_declared_namespaces(file_path):
"""Extrait uniquement les namespaces déclarés dans l'en-tête du fichier RDF/XML"""
declared_namespaces = []
try:
with open(file_path, 'r', encoding='utf-8') as file:
content = file.read()
import re
# Pattern amélioré pour capturer la balise rdf:RDF complète, même sur plusieurs lignes
rdf_tag_pattern = r'<rdf:RDF[^>]*(?:\n[^>]*)*>'
rdf_match = re.search(rdf_tag_pattern, content, re.MULTILINE | re.DOTALL)
if rdf_match:
rdf_tag = rdf_match.group(0)
# Pattern pour extraire tous les attributs xmlns
xmlns_pattern = r'xmlns(?::([^=\s]+))?\s*=\s*"([^"]+)"'
xmlns_matches = re.findall(xmlns_pattern, rdf_tag)
for prefix, uri in xmlns_matches:
# Si pas de préfixe spécifié, c'est le namespace par défaut
if not prefix:
prefix = "default"
declared_namespaces.append({
'prefix': prefix,
'uri': uri
})
# Trier par préfixe pour une meilleure lisibilité
declared_namespaces.sort(key=lambda x: x['prefix'])
else:
# Fallback: si on ne trouve pas rdf:RDF, chercher dans tout le début du fichier
xmlns_pattern = r'xmlns(?::([^=\s]+))?\s*=\s*"([^"]+)"'
xmlns_matches = re.findall(xmlns_pattern, content[:2000]) # Première partie du fichier
for prefix, uri in xmlns_matches:
if not prefix:
prefix = "default"
declared_namespaces.append({
'prefix': prefix,
'uri': uri
})
declared_namespaces.sort(key=lambda x: x['prefix'])
except Exception as e:
print(f"Erreur lors de l'extraction des namespaces: {e}")
# En cas d'erreur, essayer une approche plus simple
try:
g = Graph()
g.parse(file_path, format=detect_format(file_path))
for prefix, namespace in g.namespaces():
if prefix and prefix != '':
declared_namespaces.append({
'prefix': prefix,
'uri': str(namespace)
})
declared_namespaces.sort(key=lambda x: x['prefix'])
except:
pass
return declared_namespaces
def extract_ontology_dc_metadata(graph):
"""Extrait uniquement les métadonnées Dublin Core de la déclaration owl:Ontology"""
dublin_core_metadata = []
# Trouver l'URI de l'ontologie (ET SEULEMENT CELLE-CI)
ontology_uri = None
for s, p, o in graph:
if p == RDF.type and o == OWL.Ontology:
ontology_uri = s
break
if ontology_uri:
# Rechercher uniquement les propriétés DC de cette ressource owl:Ontology
for s, p, o in graph:
if s == ontology_uri: # SEULEMENT cette ressource owl:Ontology
p_str = str(p)
# Vérifier si c'est une propriété Dublin Core
if "purl.org/dc/elements/1.1/" in p_str:
# Extraire le nom de la propriété
if p_str.endswith('/'):
prop_name = p_str.split('/')[-2]
else:
prop_name = p_str.split('/')[-1]
dublin_core_metadata.append({
'property': f"dc:{prop_name}",
'value': str(o)
})
# Trier les métadonnées par ordre alphabétique
dublin_core_metadata.sort(key=lambda x: x['property'])
return dublin_core_metadata
def extract_metadata_and_stats(graph, file_path):
"""Extract Dublin Core metadata, declared namespaces, and graph statistics"""
# Extraire les métadonnées Dublin Core uniquement de owl:Ontology
dublin_core_metadata = extract_ontology_dc_metadata(graph)
# Extraire uniquement les namespaces déclarés dans l'en-tête
declared_namespaces = extract_declared_namespaces(file_path)
# Calculer les statistiques du graphe
total_triples = len(graph)
object_props, data_props, annotation_props = set(), set(), set()
for s, p, o in graph:
p_str = str(p)
if isinstance(o, URIRef):
object_props.add(p_str)
elif "label" in p_str.lower() or "comment" in p_str.lower():
annotation_props.add(p_str)
else:
data_props.add(p_str)
graph_stats = {
'total_triples': total_triples,
'object_properties': len(object_props),
'data_properties': len(data_props),
'annotation_properties': len(annotation_props)
}
return dublin_core_metadata, declared_namespaces, graph_stats
# Cleanup function to remove temporary files on exit
def cleanup_temp_files():
try:
for file_token, file_path in list(file_mappings.items()):
try:
if os.path.exists(file_path):
os.unlink(file_path)
except:
pass
if os.path.exists(TEMP_DIR):
shutil.rmtree(TEMP_DIR)
except Exception as e:
print(f"Error during cleanup: {e}")
# Register cleanup function
atexit.register(cleanup_temp_files)
@app.route("/", methods=["GET"])
def home():
return HOME_PAGE
@app.route("/upload", methods=["POST"])
def upload():
file = request.files.get("rdf_file")
if not file:
return "No file uploaded", 400
# Generate a unique token for this file
file_token = str(uuid.uuid4())
# Save file to our temporary directory
filename = f"{file_token}{os.path.splitext(file.filename)[1]}"
temp_file_path = os.path.join(TEMP_DIR, filename)
file.save(temp_file_path)
# Store the mapping
file_mappings[file_token] = temp_file_path
# Extract metadata and statistics for the upload success page
try:
fmt = detect_format(temp_file_path)
if fmt:
g = Graph()
g.parse(temp_file_path, format=fmt)
dublin_core_metadata, namespaces, graph_stats = extract_metadata_and_stats(g, temp_file_path)
else:
dublin_core_metadata, namespaces, graph_stats = [], [], {
'total_triples': 0,
'object_properties': 0,
'data_properties': 0,
'annotation_properties': 0
}
except Exception as e:
print(f"Erreur lors de l'analyse du fichier: {e}")
dublin_core_metadata, namespaces, graph_stats = [], [], {
'total_triples': 0,
'object_properties': 0,
'data_properties': 0,
'annotation_properties': 0
}
return render_template_string(
UPLOAD_SUCCESS_PAGE,
path=file_token, # Pass token instead of actual path
dublin_core_metadata=dublin_core_metadata,
namespaces=namespaces,
graph_stats=graph_stats
)
@app.route("/sparql", methods=["GET", "POST"])
def sparql_endpoint():
file_token = request.args.get("path") or request.form.get("path")
rdf_path = file_mappings.get(file_token)
if not rdf_path or not os.path.exists(rdf_path):
return "RDF file not found", 400
fmt = detect_format(rdf_path)
if not fmt:
return "Unsupported file format", 400
g = Graph()
g.parse(rdf_path, format=fmt)
query = request.form.get("query", "")
results = []
error_message = ""
if request.method == "POST" and query:
try:
qres = g.query(query)
# Get variable names from the first result
if hasattr(qres, 'vars') and qres.vars:
var_names = [str(var) for var in qres.vars]
else:
# Fallback: try to extract variable names from query
import re
select_match = re.search(r'SELECT\s+(.*?)\s+WHERE', query.upper())
if select_match:
vars_str = select_match.group(1)
if vars_str.strip() == '*':
# For SELECT *, we need to infer from results
var_names = []
for row in qres:
var_names = [f"var{i}" for i in range(len(row))]
break
else:
var_names = [v.strip().replace('?', '') for v in vars_str.split()]
else:
var_names = []
for row in qres:
result_dict = {}
for i, value in enumerate(row):
var_name = var_names[i] if i < len(var_names) else f"var{i}"
result_dict[var_name] = str(value) if value else ""
results.append(result_dict)
except Exception as e:
error_message = html.escape(str(e))
# Escape user input to prevent XSS
escaped_query = html.escape(query)
escaped_error = html.escape(error_message) if error_message else ""
sparql_page = f"""
<!DOCTYPE html>
<html>
<head>
<title>SPARQL Endpoint</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* {{ margin: 0; padding: 0; box-sizing: border-box; }}
body {{
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background: #F5F5F5;
min-height: 100vh;
padding: 20px;
color: #333;
}}
.container {{
max-width: 1200px;
margin: 0 auto;
background: white;
border-radius: 20px;
box-shadow: 0 20px 40px rgba(0,0,0,0.1);
padding: 30px;
}}
h1 {{
color: #667eea;
text-align: center;
margin-bottom: 30px;
font-size: 2.5rem;
font-weight: 300;
}}
.query-section {{
margin-bottom: 30px;
background: #f8f9ff;
border-radius: 15px;
padding: 20px;
border-left: 5px solid #667eea;
}}
.query-label {{
display: block;
color: #667eea;
font-weight: 600;
margin-bottom: 10px;
font-size: 1.1rem;
}}
.query-textarea {{
width: 100%;
height: 200px;
padding: 15px;
border: 1px solid #ddd;
border-radius: 8px;
font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
font-size: 14px;
line-height: 1.4;
resize: vertical;
background: white;
}}
.query-textarea:focus {{
outline: none;
border-color: #667eea;
box-shadow: 0 0 10px rgba(102,126,234,0.3);
}}
.button-group {{
display: flex;
gap: 15px;
margin-top: 15px;
flex-wrap: wrap;
}}
.btn {{
padding: 12px 25px;
border: none;
border-radius: 8px;
font-size: 1rem;
font-weight: 500;
cursor: pointer;
transition: all 0.3s ease;
color: white;
}}
.btn-primary {{
background: linear-gradient(45deg, #667eea, #764ba2);
}}
.btn-secondary {{
background: linear-gradient(45deg, #95a5a6, #7f8c8d);
}}
.btn-info {{
background: linear-gradient(45deg, #3498db, #2980b9);
}}
.btn:hover {{
transform: translateY(-2px);
box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}}
.results-section {{
margin-top: 30px;
}}
.error {{
background: #ffe6e6;
color: #d63031;
padding: 15px;
border-radius: 8px;
border-left: 5px solid #d63031;