body {
        font-family: Arial, sans-serif;
        background-color: #f5f5f5;
        margin: 0;
        padding: 20px;
        max-width: 600px;
        margin: 50px auto;
}

.container {
        max-width: 450px;
        margin: 50px auto;
        background-color: white;
        border-radius: 8px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        overflow: hidden;
}

.header {
        background-color: #0366d6;
        color: white;
        padding: 20px;
        text-align: center;
}

.content {
        padding: 30px;
}

.info-box {
        background-color: #f6f8fa;
        border: 1px solid #e1e4e8;
        border-radius: 5px;
        padding: 15px;
        margin-bottom: 20px;
}

.info-box h3 {
        margin-top: 0;
        font-size: 14px;
        color: #586069;
}

.info-box ul {
        margin: 5px 0;
        padding-left: 20px;
}

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

label {
        display: block;
        margin-bottom: 5px;
        font-weight: bold;
        color: #24292e;
}

input[type="text"],
input[type="password"] {
        width: 100%;
        padding: 10px;
        border: 1px solid #d1d5da;
        border-radius: 5px;
        box-sizing: border-box;
        font-size: 14px;
}

input[type="text"]:focus,
input[type="password"]:focus {
        outline: none;
        border-color: #0366d6;
        box-shadow: 0 0 0 3px rgba(3,102,214,0.3);
}

.button-group {
        display: flex;
        gap: 10px;
        margin-top: 20px;
}

button {
        flex: 1;
        padding: 12px;
        border: none;
        border-radius: 5px;
        font-size: 14px;
        font-weight: bold;
        cursor: pointer;
        transition: background-color 0.2s;
}

.btn-primary {
        background-color: #0366d6;
        color: white;
}

.btn-primary:hover {
        background-color: #0256c7;
}

.btn-secondary {
        background-color: #e1e4e8;
        color: #24292e;
}

.btn-secondary:hover {
        background-color: #d1d5da;
}

.error {
        background-color: #ffeef0;
        border: 1px solid #f97583;
        color: #d73a49;
        padding: 12px;
        border-radius: 5px;
        margin-bottom: 20px;
}

.demo-note {
        background-color: #fff3cd;
        border: 1px solid #ffc107;
        color: #856404;
        padding: 10px;
        border-radius: 5px;
        font-size: 12px;
        margin-top: 15px;
}

code {
        background-color: #f6f8fa;
        padding: 2px 6px;
        border-radius: 3px;
        font-family: monospace;
        font-size: 12px;
}

.success {
        background-color: #d4edda;
        border: 1px solid #c3e6cb;
        color: #155724;
        padding: 20px;
        border-radius: 8px;
        margin-bottom: 20px;
        text-align: center;
}

.success h2 {
        margin-top: 0;
}

.info {
        background-color: #f8f9fa;
        padding: 20px;
        border-radius: 8px;
        text-align: left;
        border: 1px solid #dee2e6;
}

.info p {
        margin: 10px 0;
}

.info code {
        background-color: #e9ecef;
        padding: 2px 6px;
        border-radius: 3px;
        font-family: monospace;
        word-break: break-all;
}

.spinner {
        border: 4px solid #f3f3f3;
        border-top: 4px solid #28a745;
        border-radius: 50%;
        width: 40px;
        height: 40px;
        animation: spin 1s linear infinite;
        margin: 20px auto;
}

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

.denied {
        background-color: #f8d7da;
        border: 1px solid #f5c6cb;
        color: #721c24;
        padding: 20px;
        border-radius: 8px;
        text-align: center;
}