* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f0f2f5;
    color: #1c1e21;
    line-height: 1.5;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #dddfe2;
}

header h1 {
    color: #1877f2;
}

.card {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 24px;
    margin-bottom: 24px;
}

h2 {
    margin-bottom: 16px;
    color: #1c1e21;
}

h3 {
    margin: 16px 0;
    color: #1c1e21;
}

.btn {
    background-color: #1877f2;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 10px 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #166fe5;
}

.btn.small {
    padding: 4px 8px;
    font-size: 12px;
}

.select-container {
    margin: 20px 0;
}

.app-dropdown {
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #dddfe2;
    margin-top: 10px;
    font-size: 16px;
}

.app-info {
    background-color: #f7f8fa;
    padding: 16px;
    border-radius: 6px;
}

.info-row {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.label {
    font-weight: bold;
    width: 100px;
}

.value {
    flex-grow: 1;
    word-break: break-all;
    padding: 0 10px;
}

.hidden-secret {
    font-family: monospace;
}

.status {
    padding: 12px;
    border-radius: 6px;
    margin: 16px 0;
}

.status.success {
    background-color: #e7f3e8;
    color: #2e7d32;
}

.status.error {
    background-color: #fdede8;
    color: #c62828;
}

footer {
    text-align: center;
    font-size: 14px;
    color: #65676b;
    margin-top: 40px;
}

.hidden {
    display: none !important;
}