body, html {
    margin: 0;
    padding: 0;
    font-family: 'Inter', Arial, sans-serif;
    background-color: #f1f3f6;
    color: #333;
    box-sizing: border-box;
}

.container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 16px;
}

.header {
    background-color: #ffffff;
    padding: 16px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.footer {
    background-color: #fafbfc;
    padding: 24px;
    text-align: center;
    color: #888;
    font-size: 0.875rem;
}

.btn-primary {
    background-color: #007aff;
    color: #ffffff;
    padding: 12px 20px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.btn-primary:hover {
    background-color: #0062cc;
}

.card {
    background-color: #ffffff;
    padding: 24px;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    margin-bottom: 16px;
}

.input-text {
    width: 100%;
    padding: 12px;
    border: 1px solid #e1e5ea;
    border-radius: 12px;
    margin-bottom: 16px;
    font-size: 1rem;
}

.input-text:focus {
    border-color: #007aff;
    outline: none;
}