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

body {
    font-family: "Avenir", Arial, sans-serif;
    background-color: #f8f9fa;
    color: #222;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Top Banner */
.banner {
    width: 100%;
    background-color: #1e1e2f;
    color: white;
    padding: 15px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.banner-content {
    width: 90%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.banner-title {
    font-size: 1.6rem;
    font-weight: 500;
}

.logo {
    width: 40px;
    height: 40px;
}

/* Main Content */
.main-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 40px 10px;
}

#content-box {
    background: #fff;
    width: 90%;
    max-width: 800px;
    min-height: 400px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 30px;
    transition: all 0.3s ease;
}

.loading {
    text-align: center;
    padding: 50px;
    color: #777;
    font-style: italic;
}

/* Footer */
.footer {
    background: #1e1e2f;
    color: white;
    text-align: center;
    padding: 10px 0;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 600px) {
    .banner-content {
        flex-direction: column;
        text-align: center;
    }
    .banner-title {
        font-size: 1.3rem;
    }
    #content-box {
        padding: 20px;
    }
}