/* SEC590 sub-site — "the real deal" layer. Rides on site.css variables but
   signals authenticity: a persistent real-world ribbon, cleaner author cards,
   a numbered day outline. Visually calmer than the parody company shell. */
body.sec{overflow:auto;height:auto;background:var(--bg)}

/* real-world ribbon — the honesty escape hatch */
.realbar{background:#0d243a;border-bottom:1px solid #1d4b6e;color:#bfe0ee;font-size:13px;
  text-align:center;padding:9px 16px;font-family:"Open Sans",sans-serif}
.realbar b{color:#fff}
.realbar a{color:var(--cyan);border-bottom:1px solid transparent}
.realbar a:hover{border-color:var(--cyan)}

/* sub-site top bar: course wordmark + light nav */
.sec-top{position:sticky;top:0;z-index:40;height:64px;display:flex;align-items:center;gap:26px;padding:0 26px;
  background:rgba(7,8,12,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.sec-brand{display:flex;align-items:center;gap:11px;color:#fff;font-family:"Oswald",sans-serif;font-size:19px;letter-spacing:.06em}
.sec-brand .code{color:var(--cyan);font-weight:700}
.sec-brand .sans{color:var(--mut);font-size:12px;letter-spacing:.14em;text-transform:uppercase;border-left:1px solid var(--line);padding-left:11px;margin-left:3px}
.sec-nav{display:flex;gap:4px;margin-left:auto}
.sec-nav a{color:#c3cde0;text-transform:uppercase;letter-spacing:.09em;font-size:12.5px;font-family:"Oswald",sans-serif;font-weight:300;padding:9px 13px;border:1px solid transparent}
.sec-nav a:hover,.sec-nav a.active{border-color:var(--cyan);color:#fff}
.sec-nav a.home{color:var(--mut)}

/* hero */
.sec-hero{padding:64px 26px 40px;max-width:980px;margin:0 auto}
.sec-hero .ey{color:var(--cyan);text-transform:uppercase;letter-spacing:.18em;font-size:13px;font-family:"Oswald",sans-serif}
.sec-hero h1{font-size:50px;line-height:1.05;color:#fff;font-weight:300;font-family:"Oswald",sans-serif;margin:14px 0 14px;letter-spacing:.01em}
.sec-hero h1 b{font-weight:700;color:var(--cyan)}
.sec-hero .tag{font-size:20px;color:var(--mut);max-width:720px}
.facts{display:flex;gap:30px;flex-wrap:wrap;margin-top:26px}
.fact b{display:block;font-family:"Oswald",sans-serif;font-size:26px;color:#fff}
.fact span{color:var(--mut);font-size:12.5px;text-transform:uppercase;letter-spacing:.09em}

.sec-wrap{max-width:980px;margin:0 auto;padding:0 26px}
.sec-sec{padding:40px 0;border-top:1px solid var(--line)}
.sec-sec h2{font-family:"Oswald",sans-serif;font-weight:300;font-size:32px;color:#fff;margin:0 0 6px;letter-spacing:.01em}
.sec-sec .lead{color:var(--mut);max-width:760px}
.pills span{display:inline-block;font-size:12.5px;color:#cdbcf0;border:1px solid #3a2d5c;border-radius:999px;padding:5px 12px;margin:8px 6px 0 0;font-family:"Oswald",sans-serif}

/* day outline */
.days-ol{list-style:none;padding:0;margin:22px 0 0;counter-reset:d}
.day-row{display:grid;grid-template-columns:70px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
.day-row .dn{font-family:"Oswald",sans-serif;color:var(--cyan);font-size:15px;letter-spacing:.08em;text-transform:uppercase}
.day-row h3{margin:0 0 6px;color:#fff;font-size:19px;font-weight:600;font-family:"Open Sans",sans-serif}
.day-row p{margin:0;color:var(--mut);font-size:14.5px}
.day-row .mods{color:#8ea0c9;font-size:13px;margin-top:8px}

/* authors */
.authors-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}
.author{background:var(--bg2);border:1px solid var(--line);border-radius:14px;padding:24px;display:flex;gap:18px}
.author .av{width:72px;height:72px;border-radius:50%;flex:none;display:grid;place-items:center;
  font-family:"Oswald",sans-serif;font-size:26px;font-weight:700;color:#07101f}
.author .av.pa{background:linear-gradient(135deg,#8451c7,var(--cyan))}
.author .av.aw{background:linear-gradient(135deg,var(--cyan),#53c08a)}
.author h3{margin:0;color:#fff;font-size:19px}
.author .role{color:var(--cyan);font-size:13px;font-family:"Oswald",sans-serif;letter-spacing:.06em;text-transform:uppercase;margin:3px 0 10px}
.author p{color:var(--mut);font-size:14px;margin:0}
.author .handles{margin-top:10px;font-size:13px;color:#8ea0c9}
.author .handles a{color:var(--cyan)}

/* resources callout */
.res-callout{display:flex;justify-content:space-between;align-items:center;gap:22px;flex-wrap:wrap;
  background:linear-gradient(135deg,#0d1324,#1a2140);border:1px solid var(--line);border-radius:16px;padding:26px 28px}
.res-callout h2{margin:0 0 4px}
.sec-foot{border-top:1px solid var(--line);background:#06070a;padding:30px 0 50px;color:var(--mut);font-size:13px;margin-top:30px}
.sec-foot .wrapf{max-width:980px;margin:0 auto;padding:0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.sec-foot a{color:var(--mut)}.sec-foot a:hover{color:var(--cyan)}

@media (max-width:760px){
  .sec-hero h1{font-size:34px}.authors-grid{grid-template-columns:1fr}.sec-nav{display:none}
}