@font-face{font-family:"Montserrat";font-style:normal;font-weight:100 900;font-display:swap;src:url(montserrat-latin-ext-wght-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Montserrat";font-style:normal;font-weight:100 900;font-display:swap;src:url(montserrat-latin-wght-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
:root{--ink:#111418;--tone2:#62676f;--muted:#5c626b;--brand:#014590;--brand-dark:#00356f;--brand-soft:#e9f0f9;--card:#f4f5f7;--border:#e3e6ea;--font:"Montserrat",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font:400 1rem/1.65 var(--font);-webkit-font-smoothing:antialiased}
a{color:var(--brand)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--brand);outline-offset:3px;border-radius:4px}
img{max-width:100%;display:block}
.wrap{max-width:62rem;margin:0 auto;padding:0 1.5rem}
.label{display:block;color:var(--brand);font-size:.75rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:.8rem}
h1,h2,h3{margin:0;font-weight:800;letter-spacing:-.025em;line-height:1.15}
h1{font-size:clamp(2rem,5vw,3rem)}
h2{font-size:clamp(1.5rem,3vw,2rem);margin-bottom:1rem}
h3{font-size:1.05rem;font-weight:700;letter-spacing:-.01em}
.t2{color:var(--tone2)}
.top{border-bottom:1px solid var(--border);background:#fff;position:sticky;top:0;z-index:5}
.top .wrap{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding-top:.9rem;padding-bottom:.9rem}
.top img{width:9.5rem}
.top nav{display:flex;gap:1.4rem;flex-wrap:wrap}
.top nav a{color:var(--ink);text-decoration:none;font-weight:600;font-size:.9rem}
.top nav a:hover{color:var(--brand)}
@media (max-width:640px){.top nav a.opt{display:none}}
.btn{display:inline-flex;align-items:center;gap:.55rem;padding:.7rem 1.1rem;border-radius:6px;font:700 .9rem/1.2 var(--font);text-decoration:none;border:2px solid var(--brand);color:var(--brand);background:#fff;cursor:pointer}
.btn:hover{background:var(--brand-soft)}
.btn svg{width:18px;height:18px}
.btn.primary{background:var(--brand);color:#fff}
section{padding:3.5rem 0}
.hero{padding:3.5rem 0 2.5rem}
.hero .sub{color:var(--muted);font-size:1.1rem;margin:.6rem 0 1.6rem}
.links{display:flex;flex-wrap:wrap;gap:.6rem}
.bar{width:4rem;height:6px;background:var(--brand);border-radius:3px;margin:1.3rem 0}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.box{background:var(--card);border-radius:12px;padding:1.5rem}
.box ul{margin:.6rem 0 0;padding-left:1.1rem;color:var(--muted)}
.box li{margin:.3rem 0}
@media (max-width:720px){.grid2{grid-template-columns:1fr}}
.tools{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;margin-bottom:1.4rem}
.tools input{flex:1 1 16rem;padding:.7rem .9rem;border:1px solid #cdd2d8;border-radius:8px;font:500 .95rem var(--font)}
.chips{display:flex;gap:.4rem;flex-wrap:wrap}
.chips button{font:700 .82rem var(--font);padding:.5rem .85rem;border-radius:999px;border:1px solid var(--border);background:#fff;color:var(--muted);cursor:pointer}
.chips button[aria-pressed="true"]{background:var(--brand);border-color:var(--brand);color:#fff}
.count{color:var(--muted);font-size:.88rem;margin:0 0 1rem}
.year{display:grid;grid-template-columns:5rem 1fr;gap:1rem;padding:1.2rem 0;border-top:1px solid var(--border)}
.year > b{font-size:1.3rem;font-weight:800;color:var(--tone2)}
.pub{margin:0 0 1rem}
.pub:last-child{margin-bottom:0}
.pub .t{font-weight:600}
.pub .a{color:var(--muted);font-size:.9rem}
.tag{display:inline-block;font-size:.68rem;font-weight:700;letter-spacing:.04em;padding:.1rem .45rem;border-radius:4px;background:var(--brand-soft);color:var(--brand);margin-right:.35rem;vertical-align:1px}
.tag.g{background:var(--card);color:var(--muted)}
.pub a{font-size:.85rem;font-weight:600}
@media (max-width:560px){.year{grid-template-columns:1fr;gap:.4rem}}
.courses{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
.course{display:block;text-decoration:none;color:inherit;border:1px solid var(--border);border-radius:12px;padding:1.4rem;transition:border-color .15s}
.course:hover{border-color:var(--brand)}
.course small{display:block;font-weight:700;color:var(--brand);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:.4rem}
.course p{margin:.4rem 0 0;color:var(--muted);font-size:.92rem}
@media (max-width:640px){.courses{grid-template-columns:1fr}}
footer{border-top:1px solid var(--border);color:var(--muted);font-size:.85rem;margin-top:2rem}
footer .wrap{padding-top:1.4rem;padding-bottom:1.4rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.6rem}
/* course page content */
.md{max-width:48rem}
.md h1{font-size:clamp(1.9rem,4.5vw,2.7rem);margin-bottom:1rem}
.md h2{margin:2.4rem 0 .8rem;padding-top:1.4rem;border-top:1px solid var(--border)}
.md h3{margin:1.4rem 0 .4rem}
.md p,.md li{color:#30353c}
.md ul.info{list-style:none;padding:0;margin:1.2rem 0;display:grid;grid-template-columns:repeat(2,1fr);gap:.2rem 2rem}
.md ul.info li{padding:.5rem 0;border-bottom:1px solid var(--border)}
@media (max-width:560px){.md ul.info{grid-template-columns:1fr}}
.md .tw{overflow-x:auto;margin:1rem 0}
.md table{width:100%;border-collapse:collapse;font-size:.93rem}
.md th,.md td{text-align:left;padding:.6rem .8rem;border-bottom:1px solid var(--border);vertical-align:top}
.md th{background:var(--card);font-weight:700}
.md blockquote{margin:1rem 0;padding:.8rem 1.1rem;background:var(--brand-soft);border-radius:8px;border-left:4px solid var(--brand)}
.md blockquote p{margin:0}
.md code{background:var(--card);padding:.1rem .35rem;border-radius:4px;font-size:.9em}
.md hr{border:none;border-top:1px solid var(--border);margin:2rem 0}
.back{display:inline-flex;align-items:center;gap:.4rem;font-weight:700;text-decoration:none;font-size:.9rem;margin-bottom:1.6rem}
.err{background:#fff4e5;border-radius:8px;padding:1rem 1.2rem;color:#6b4a00}