* {
    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;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 3px solid #667eea;
}

h1 {
    color: #333;
    font-size: 2.5em;
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    font-size: 1.1em;
}

h2 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.5em;
}

.add-word-section,
.search-section,
.words-list {
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #555;
    font-weight: 600;
}

.form-group input[type="text"] {
    width: 100%;
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1em;
    transition: border-color 0.3s;
}

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

.form-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

button[type="submit"],
.delete-btn {
    background: #667eea;
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 5px;
    font-size: 1em;
    cursor: pointer;
    transition: background 0.3s;
}

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

.delete-btn {
    background: #dc3545;
    padding: 8px 15px;
    font-size: 0.9em;
}

.delete-btn:hover {
    background: #c82333;
}

#searchInput {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1em;
}

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

.word-item {
    background: white;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    border-left: 4px solid #667eea;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.word-item.official {
    border-left-color: #28a745;
}

.word-content {
    flex: 1;
}

.word-title {
    font-size: 1.3em;
    color: #333;
    font-weight: bold;
    margin-bottom: 5px;
}

.word-meaning {
    color: #666;
    margin-bottom: 3px;
}

.word-badge {
    display: inline-block;
    background: #28a745;
    color: white;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.8em;
    margin-top: 5px;
}

.loading {
    text-align: center;
    color: #667eea;
    font-size: 1.1em;
    padding: 20px;
}

.error {
    background: #dc3545;
    color: white;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 15px;
}

.success {
    background: #28a745;
    color: white;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 15px;
}