body {
    background: #f5e7c4; /* warm parchment-like */
    color: #3c2f2f; /* dark brown text */
    font-family: "Palatino Linotype", "Book Antiqua", Palatino, serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}
.container {
    background: #fdf9f3;
    width: 1200px;
    margin: 40px auto;
    border: 1px solid #e0d5c1;
    box-shadow: 0 0 8px rgba(0,0,0,0.1);
    display:flex;
    flex-direction: row;
    justify-content:space-between;
    background-image: url("static/notebook.jpg");
    background-color: rgba(255,255,255,0.5);
    background-blend-mode: lighten;
}
.main{
    width: 900px;
    padding-left: 100px;
    padding-right: 100px;
    padding-top:80px;
    padding-bottom:80px;
    margin-left: 50px;
}
h1 {
    font-size: 2.5em;
    font-weight: normal;
    text-align: center;
    margin-bottom: 5px;
    color: #3c2f2f;
}
h2 {
    font-size: 1.8em;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: center;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    color: #4b3427;
    position: relative;
}
h2::before {
    content: "";
    display: block;
    width: 50px;
    height: 2px;
    background: #d9b381;
    margin: 0.8em auto;
}
h2::after {
    content: "";
    display: block;
    width: 150px;
    height: 1px;
    background: #d9b381;
    margin: 0.4em auto;
}
h3 {
    font-size: 1.2em;
    margin: 1em 0 0.2em 0;
    font-weight: bold;
    color: #4b3427;
}
ul { 
    margin-left: 1.2em; 
    /* list-style-type: none; */
    padding: 0px;
}
li { 
    margin-bottom: 0.5em; 
}
a {
    color: #5b4d3a;
    text-decoration: none;
    border-bottom: 1px dotted #5b4d3a;
}
a:hover {
    color: #3c2f2f;
}
.undecorated-list{
    list-style-type: none;
    font-style: normal;
}
.navigation{
    padding-top: 80px;
    padding-bottom: 80px;
    padding-left: 40px;
    padding-right: 40px;
    border-right-width: 3px;
    border-right-style: double;
    border-right-color:red;
}
/* Page lock styles */
#lock-screen {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: #f8f9fa;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

#lock-screen input {
    padding: 10px;
    margin: 10px;
    font-size: 1em;
}

#lock-screen button {
    padding: 10px 20px;
    font-size: 1em;
}

.hidden {
    display: none;
}