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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

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

header {
    text-align: center;
    color: white;
    margin-bottom: 40px;
}

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

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

.loading {
    background: white;
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.loading-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.content {
    display: none;
}

.content.loaded {
    display: block;
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}

.tab {
    flex: 1;
    background: rgba(255,255,255,0.2);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1em;
    transition: all 0.3s ease;
}

.tab:hover {
    background: rgba(255,255,255,0.3);
}

.tab.active {
    background: white;
    color: #667eea;
}

.query-section {
    display: none;
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    margin-bottom: 20px;
}

.query-section.active {
    display: block;
}

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

label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

input[type="text"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1em;
    transition: border-color 0.3s ease;
}

input[type="text"]:focus {
    outline: none;
    border-color: #667eea;
}

.autocomplete-list {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    z-index: 10;
    max-height: 240px;
    overflow-y: auto;
}

.autocomplete-item {
    padding: 10px 12px;
    cursor: pointer;
    border-bottom: 1px solid #f0f0f0;
    color: #333;
}

.autocomplete-item:last-child {
    border-bottom: none;
}

.autocomplete-item:hover,
.autocomplete-item.active {
    background: #f2f5ff;
}

.autocomplete-meta {
    color: #666;
    font-size: 0.85em;
}

button[type="submit"] {
    background: #667eea;
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 8px;
    font-size: 1em;
    cursor: pointer;
    transition: background 0.3s ease;
}

button[type="submit"]:hover {
    background: #5568d3;
}

button[type="submit"]:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.results {
    margin-top: 30px;
}

.results h3 {
    color: #333;
    margin-bottom: 15px;
}

.result-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    border-left: 4px solid #667eea;
}

.result-title {
    font-weight: 600;
    color: #333;
    margin-bottom: 5px;
}

.result-meta {
    color: #666;
    font-size: 0.9em;
}

.no-results {
    text-align: center;
    color: #666;
    padding: 40px;
    font-style: italic;
}

.error {
    background: #fee;
    border: 1px solid #fcc;
    color: #c33;
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
}

.hint {
    color: #666;
    font-size: 0.9em;
    margin-top: 5px;
}

.stats {
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 30px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-top: 10px;
}

.stat-item {
    padding: 10px;
}

.stat-value {
    font-size: 2em;
    font-weight: bold;
}

.stat-label {
    font-size: 0.9em;
    opacity: 0.9;
}