.nav-download {
  font-size: 20px;
  font-weight: 700;
  line-height: 54px;
  margin-bottom: 0;
  float: right; }
  
.nav-download:hover {
	text-decoration: none;
}

.ai-case {
    height: 140px;
    white-space: pre-line;
}

.left {
    text-align: left
}

.right {
    text-align: right
}

.center {
    text-align: center
}

.container {
    width: 100%
}

.row {
    position: relative;
    width: 100%
}

.row [class^=col] {
    float: left;
    margin: .5rem 2%
}

.col-1,
.col-10,
.col-11,
.col-12,
.col-2,
.col-3,
.col-4,
.col-5,
.col-6,
.col-7,
.col-8,
.col-9 {
    width: 96%
}

.col-1-sm {
    width: 4.33%
}

.col-2-sm {
    width: 12.66%
}

.col-3-sm {
    width: 21%
}

.col-4-sm {
    width: 29.33%
}

.col-5-sm {
    width: 37.66%
}

.col-6-sm {
    width: 46%
}

.col-7-sm {
    width: 54.33%
}

.col-8-sm {
    width: 62.66%
}

.col-9-sm {
    width: 71%
}

.col-10-sm {
    width: 79.33%
}

.col-11-sm {
    width: 87.66%
}

.col-12-sm {
    width: 96%
}

.row::after {
    content: "";
    display: table;
    clear: both
}

.hidden-sm {
    display: none
}

@media only screen and (min-width:45em) {
    .col-1 {
        width: 4.33%
    }
    .col-2 {
        width: 12.66%
    }
    .col-3 {
        width: 21%
    }
    .col-4 {
        width: 29.33%
    }
    .col-5 {
        width: 37.66%
    }
    .col-6 {
        width: 46%
    }
    .col-7 {
        width: 54.33%
    }
    .col-8 {
        width: 62.66%
    }
    .col-9 {
        width: 71%
    }
    .col-10 {
        width: 79.33%
    }
    .col-11 {
        width: 87.66%
    }
    .col-12 {
        width: 96%
    }
    .hidden-sm {
        display: block
    }
}

@media only screen and (min-width:60em) {
    .container {
        max-width: 60rem
    }
}

/* --- Site custom theme (v2) --- */
:root{
    --ink: #1f2937;
    --muted: #5b6b7a;
    --accent: #5b6f86;
    --accent-2: #6c8a83;
    --paper: #faf7f2;
    --card: #ffffff;
    --border: #eadfda;
    --radius: 16px;
    --maxw: 1020px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
    margin:0;
    font-family: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    color:var(--ink);
    background: var(--paper);
    -webkit-font-smoothing:antialiased;
}

.site-wrap{max-width:1100px;margin:0 auto;padding:2.25rem 2rem 4rem}

.site-header{
    display:flex;
    justify-content:flex-end;
    align-items:flex-end;
    padding:0 0 1.1rem;
    border-bottom: 1px solid rgba(234, 223, 218, 0.9);
}
.site-title{
    font-family: "Source Serif 4", "Times New Roman", serif;
    font-weight:700;
    letter-spacing: .2px;
    font-size:1.3rem;
}
.site-nav a{
    margin-left:1.25rem;
    color:var(--ink);
    text-decoration:none;
    font-weight:600;
    position: relative;
}
.site-nav a::after{
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .2s ease;
}
.site-nav a:hover::after{transform: scaleX(1)}

.layout{
    display:grid;
    grid-template-columns: 300px 1fr;
    gap:2.5rem;
    padding-top:1.5rem;
}

.sidebar{
    position: sticky;
    top: 2rem;
    align-self: start;
}

.sidebar h1{
    font-family: "Source Serif 4", "Times New Roman", serif;
    font-size:2.2rem;
    margin:0 0 .5rem;
}

.sidebar p{
    margin:0 0 .75rem;
    color:var(--muted);
    line-height:1.6;
}

.sidebar .meta{
    margin-top:.75rem;
    padding-top:.75rem;
    border-top:1px solid rgba(234, 223, 218, 0.8);
    font-size:.95rem;
    color:var(--muted);
}

.sidebar .meta strong{
    display:block;
    color:var(--ink);
    font-weight:600;
    margin-bottom:.25rem;
}

.sidebar .contact a{
    display:block;
    color:var(--ink);
    text-decoration:none;
    margin-bottom:.5rem;
}

.content h2{
    font-family: "Source Serif 4", "Times New Roman", serif;
    font-size:1.6rem;
    margin:0 0 .5rem;
}

.section{
    padding:1rem 0;
    border-bottom:1px solid rgba(234, 223, 218, 0.8);
}

.paper-list{display:flex;flex-direction:column;gap:.8rem}
.paper-item{
    padding-left:1rem;
    border-left:3px solid rgba(91, 111, 134, 0.35);
}
.paper-item h3{margin:0 0 .35rem;font-size:1.05rem}
.paper-item p{margin:0;color:var(--muted);font-size:.98rem;line-height:1.6}

.site-footer{padding:2rem 0 0;text-align:center;color:var(--muted);font-size:.9rem}

@keyframes fade-up{
    from{opacity:0;transform:translateY(12px)}
    to{opacity:1;transform:translateY(0)}
}

@media (max-width:900px){
    .layout{grid-template-columns:1fr}
    .sidebar{position:static}
}
@media (max-width:640px){
    .site-header{position:relative}
    .site-nav a{margin-left:.75rem}
}

/* reset legacy layout styles from stylesheets/styles.css */
header, section {width:auto; float:none; position:static;}
.wrapper {width:auto; margin:0;}