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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #000;
    color: #fff;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 800px;
    background-color: #111;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

h1 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 2rem;
    color: #fff;
}

.input-container {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#token-input {
    flex: 1;
    padding: 12px;
    background-color: #222;
    border: 1px solid #333;
    border-radius: 4px;
    color: #fff;
    font-size: 16px;
    transition: border-color 0.3s;
}

#token-input:focus {
    outline: none;
    border-color: #555;
}

#check-button {
    padding: 12px 20px;
    background-color: #333;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

#check-button:hover {
    background-color: #444;
}

#result-container {
    margin-top: 20px;
    background-color: #1a1a1a;
    border-radius: 4px;
    padding: 20px;
}

#token-status {
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: bold;
}

#token-details {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
}

.detail-item {
    background-color: #222;
    padding: 10px;
    border-radius: 4px;
}

.detail-label {
    font-weight: bold;
    margin-bottom: 5px;
    color: #aaa;
}

.detail-value {
    word-break: break-all;
}

.valid {
    color: #4CAF50;
}

.invalid {
    color: #f44336;
}

.hidden {
    display: none;
}

#loading {
    text-align: center;
    margin-top: 20px;
}

.spinner {
    border: 4px solid #222;
    border-top: 4px solid #fff;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 10px;
}

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

.error-message {
    background-color: #333;
    color: #f44336;
    padding: 10px;
    border-radius: 4px;
    margin-top: 10px;
}