:root{--bg:#ffffff;--bg-soft:#fafafa;--text:#111111;--text-dim:#666666;--text-faint:#8a8a8a;--border:#e2e2e2;--border-strong:#c9c9c9;--surface:#fafafa;--surface-hover:#f2f2f2}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%}body{background:var(--bg);font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.6}a,body{color:var(--text)}a{text-decoration:none}.btn{display:inline-block;font-family:inherit;font-size:1rem;letter-spacing:.01em;padding:.55rem 1.4rem;border-radius:6px;cursor:pointer;background:var(--text);color:var(--bg);border:1px solid var(--text);transition:background .18s ease,color .18s ease,border-color .18s ease}.btn:hover{background:#000;border-color:#000}.btn-light{color:var(--text);background:transparent;border-color:var(--border-strong)}.btn-light:hover{background:var(--surface-hover);border-color:var(--text)}.landing{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:1.5rem;position:relative}.landing-login{position:absolute;top:1.25rem;right:1.25rem}.brand{font-size:clamp(2.6rem,9vw,6rem);font-weight:700;margin:0;letter-spacing:-.01em;color:var(--text)}.tagline{margin-top:1.1rem;font-size:clamp(1rem,3.2vw,1.4rem);color:var(--text-dim);max-width:40ch}.auth-wrap{min-height:100vh;min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:1.5rem}.auth-card{width:100%;max-width:380px;padding:2.2rem 1.9rem;border:1px solid var(--border);border-radius:10px;background:var(--bg)}.auth-card h1{margin:0 0 .3rem;font-size:1.8rem;color:var(--text);text-align:center}.auth-card p.sub{margin:0 0 1.6rem;text-align:center;color:var(--text-dim)}.field{margin-bottom:1.1rem}.field label{display:block;margin-bottom:.35rem;font-size:.95rem;color:var(--text-dim)}.field input{width:100%;font-family:inherit;font-size:1rem;padding:.65rem .8rem;color:var(--text);background:var(--bg);border:1px solid var(--border-strong);border-radius:6px;outline:none;transition:border-color .18s}.field input:focus{border-color:var(--text)}.auth-card .btn{width:100%;margin-top:.4rem}.error-msg{color:var(--text);background:var(--surface);border:1px solid var(--border-strong);border-radius:6px;padding:.55rem .75rem;margin-bottom:1rem}.back-link,.error-msg{font-size:.9rem;text-align:center}.back-link{display:block;margin-top:1.3rem;color:var(--text-dim)}.back-link:hover{color:var(--text)}.panel-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding:1.1rem clamp(1rem,4vw,2.5rem);border-bottom:1px solid var(--border);background:var(--bg)}.panel-header .brand-sm{font-size:1.3rem;font-weight:700;color:var(--text)}.panel-main{max-width:1100px;margin:0 auto;padding:clamp(1.4rem,4vw,2.6rem) clamp(1rem,4vw,2.5rem) 4rem}.panel-title{font-size:clamp(1.6rem,5vw,2.2rem);margin:0 0 .4rem;color:var(--text);letter-spacing:-.01em}.panel-subtitle{margin:0 0 2rem;color:var(--text-dim)}.dept-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));grid-gap:1.1rem;gap:1.1rem}.dept-card{display:block;padding:1.4rem 1.3rem;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--text);transition:border-color .18s ease,background .18s ease}.dept-card:hover{border-color:var(--text);background:var(--surface-hover)}.dept-card h2{margin:0 0 .35rem;font-size:1.2rem;color:var(--text)}.dept-card p{margin:0;font-size:.92rem;color:var(--text-dim)}.markdown-body{font-size:1.05rem;color:var(--text)}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4{color:var(--text);line-height:1.3;margin:1.8rem 0 .8rem}.markdown-body h1{font-size:1.9rem}.markdown-body h2{font-size:1.5rem;border-bottom:1px solid var(--border);padding-bottom:.3rem}.markdown-body h3{font-size:1.2rem;color:var(--text)}.markdown-body p{margin:.7rem 0}.markdown-body a{color:var(--text);text-decoration:underline;text-underline-offset:2px;word-break:break-word}.markdown-body ol,.markdown-body ul{padding-left:1.4rem;margin:.7rem 0}.markdown-body li{margin:.35rem 0}.markdown-body li::marker{color:var(--text-dim)}.markdown-body strong{color:var(--text)}.markdown-body code{font-family:ui-monospace,SFMono-Regular,Courier New,Courier,monospace;background:var(--surface);border:1px solid var(--border);padding:.12rem .4rem;border-radius:4px;font-size:.9em;color:var(--text)}.markdown-body pre{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:1rem;overflow-x:auto}.markdown-body pre code{background:none;border:none;padding:0;color:var(--text)}.markdown-body .mermaid-diagram{display:flex;justify-content:center;margin:1.5rem 0;padding:1rem;background:var(--bg);border:1px solid var(--border);border-radius:8px;overflow-x:auto}.markdown-body .mermaid-diagram svg{max-width:100%;height:auto}.markdown-body blockquote{margin:1rem 0;padding:.4rem 1rem;border-left:3px solid var(--border-strong);background:var(--surface);color:var(--text-dim)}.markdown-body hr{border:none;border-top:1px solid var(--border);margin:1.8rem 0}.markdown-body table{width:100%;border-collapse:collapse;margin:1rem 0;display:block;overflow-x:auto}.markdown-body td,.markdown-body th{border:1px solid var(--border);padding:.5rem .7rem;text-align:left}.markdown-body th{color:var(--text);background:var(--surface)}@media (max-width:520px){.panel-header{flex-direction:row}.dept-grid{grid-template-columns:1fr}.landing-login{top:1rem;right:1rem}}