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

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

.container {
    max-width: 900px;
    margin: 0 auto;
}

.header {
    text-align: center;
    color: white;
    margin-bottom: 30px;
}

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

.warning {
    background: #ff6b6b;
    color: white;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-weight: 500;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

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

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

textarea, input[type="text"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.3s;
}

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

textarea {
    min-height: 100px;
    resize: vertical;
}

button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    width: 100%;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

button:active {
    transform: translateY(0);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.result {
    display: none;
}

.result.show {
    display: block;
}

.result-section {
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid #e0e0e0;
}

.result-section:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.result-section h3 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.2em;
}

.result-item {
    margin-bottom: 12px;
}

.result-label {
    font-weight: 600;
    color: #555;
    margin-bottom: 4px;
}

.result-value {
    background: #f7f7f7;
    padding: 10px;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    word-break: break-all;
    color: #333;
}

.error {
    background: #ff6b6b;
    color: white;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: none;
}

.error.show {
    display: block;
}

.loading {
    text-align: center;
    padding: 20px;
    display: none;
}

.loading.show {
    display: block;
}

.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

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

.address-list {
    margin-top: 8px;
}

.address-item {
    background: #f7f7f7;
    padding: 8px;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    margin-bottom: 6px;
}

footer {
    text-align: center;
    color: white;
    margin-top: 30px;
    opacity: 0.9;
}