* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

html, body {
    height: 100%;
}

.app {
    display: flex;
    height: 100vh;
    width: 100%;
    background: #f5f7fb;
}

/* Sidebar */
.sidebar {
    width: 240px;
    background: #0f172a;
    color: #fff;
    display: flex;
    flex-direction: column;
}

.logo {
    padding: 18px;
    font-size: 18px;
    font-weight: 600;
    border-bottom: 1px solid rgba(255,255,255,.08);
}

.sidebar nav {
    display: flex;
    flex-direction: column;
    padding: 10px;
}

.sidebar a {
    color: #cbd5f5;
    text-decoration: none;
    padding: 12px 14px;
    border-radius: 6px;
    font-size: 14px;
}

.sidebar a:hover {
    background: rgba(255,255,255,.08);
    color: #fff;
}

/* Content */
.content {
    flex: 1;
    height: 100%;
    background: #fff;
}

.content iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

/* Mobile */
@media (max-width: 768px) {
    .sidebar {
        width: 70px;
    }

    .logo {
        font-size: 14px;
        text-align: center;
    }

    .sidebar a {
        text-align: center;
        padding: 14px 0;
        font-size: 12px;
    }
}