/* DDL additions to the Modern Computer Vision visual language. */
.nav-brand img {filter:none;opacity:1}
.skip {position:fixed;left:12px;top:-80px;background:#fff;color:#111;padding:12px;z-index:200}
.skip:focus {top:10px}
a {color:var(--accent)}
a:focus-visible,button:focus-visible,input:focus-visible {outline:2px solid var(--teal);outline-offset:4px}
.hero {padding-bottom:32px}
.hero-image {max-width:1000px;margin-top:16px}
.hero-buttons {margin-top:26px}
.overview-section {padding-top:20px}
.overview-text p:first-child {color:var(--text-primary);font-size:1.3rem;font-weight:600}
.tbd {font-family:var(--font-mono);font-size:.85em;color:#c5d4e1}
.section-end {margin-top:22px;color:var(--text-secondary)}
.arc {display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}
.arc a {display:block;background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:20px;text-decoration:none;color:var(--text-primary)}
.arc h3 {font-size:1rem;line-height:1.5;min-height:76px;margin:10px 0}
.arc a>span:last-child {font-size:.8rem;color:var(--text-secondary)}
.eyebrow,.topic-label {font-family:var(--font-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--teal)}
.topic-number {font-weight:600;color:var(--text-primary)}
.page-heading {padding-top:64px;padding-bottom:24px}
.page-heading h1 {font-size:2.5rem;letter-spacing:-.04em;margin-bottom:12px}
.page-heading>p {max-width:850px;color:var(--text-secondary)}
.schedule-tools {position:relative;padding-top:16px;padding-bottom:20px}
.filter-anchor {position:absolute;top:0;scroll-margin-top:80px}
.schedule-tools label {display:block;font-size:.85rem;margin-bottom:8px}
input[type=search] {width:100%;max-width:540px;padding:13px 16px;border:1px solid var(--border);border-radius:9px;background:var(--bg-secondary);color:var(--text-primary);font:inherit}
.muted {font-size:.85rem;color:var(--text-secondary);margin-top:8px}
.part-links {display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.part-links a {text-decoration:none;border:1px solid var(--border);border-radius:30px;padding:6px 12px;font-size:.78rem}
.part-links a[aria-current=true] {border-color:var(--teal);background:rgba(79,209,197,.08);color:var(--teal)}
.schedule-part {padding-top:35px;padding-bottom:20px;scroll-margin-top:80px}
.topic-list {display:grid;gap:20px;margin-top:22px}
.reading-card {position:relative;background:var(--bg-secondary);border:1px solid var(--border);border-radius:14px;padding:26px;scroll-margin-top:80px}
.legacy-anchor {position:absolute;top:0;scroll-margin-top:80px}
.topic-top,.topic-bottom {display:flex;justify-content:space-between;gap:12px;align-items:center}
.duration {font-size:.8rem;color:var(--text-secondary)}
.reading-card h3 {font-size:1.25rem;letter-spacing:-.02em;margin:14px 0 8px}
.topic-family {font-size:.76rem;color:var(--text-secondary);margin-bottom:14px}
.topic-family a {color:inherit;text-decoration:none}
.topic-family a:hover {color:var(--teal)}
.question {color:#b5c4d2;font-size:.95rem;margin-bottom:24px}
.reading-grid {display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:24px}
.reading-grid h4 {font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--teal);margin-bottom:8px}
.reading-grid p {font-size:.88rem;color:var(--text-secondary);line-height:1.85}
.reading-grid strong {font-weight:600;color:var(--text-primary)}
.main-reading {border-left:2px solid var(--teal);padding-left:16px}
.main-reading p {color:#bdcbd8}
.presentation-focus {margin-top:24px;color:var(--text-secondary);font-size:.88rem}
.presentation-focus h4 {font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--teal);margin-bottom:8px}
.session-scope {padding:14px 16px;margin-bottom:24px;border-radius:8px;background:rgba(79,209,197,.06);font-size:.86rem;line-height:1.8;color:var(--text-secondary)}
.session-scope h4 {font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--teal);margin-bottom:6px}
.schedule-overview {margin-top:20px;border:1px solid var(--border);border-radius:12px;overflow:hidden}
.schedule-overview table {width:100%;border-collapse:collapse;text-align:left;font-size:.88rem}
.schedule-overview th,.schedule-overview td {padding:10px 16px;border-bottom:1px solid var(--border)}
.schedule-overview thead {background:var(--bg-secondary);color:var(--text-secondary)}
.schedule-overview tbody th {color:var(--teal);font-family:var(--font-mono);font-weight:400}
.topic-overview thead th:first-child {white-space:nowrap}
.topic-overview tbody th {font-family:var(--font-sans);font-weight:500;color:var(--text-primary)}
.topic-overview td {color:var(--text-secondary)}
.topic-overview .topic-index-number {font-family:var(--font-mono);font-weight:600;color:var(--teal);white-space:nowrap;width:52px}
.schedule-overview tr:last-child td,.schedule-overview tr:last-child th {border-bottom:0}
.schedule-overview td a {text-decoration:none}
.topic-bottom {border-top:1px solid var(--border);padding-top:14px;margin-top:24px;font-size:.75rem;color:var(--text-secondary)}
.topic-bottom a {text-decoration:none}
.guide-list {padding-left:24px;margin-top:24px;max-width:850px;color:var(--text-secondary)}
.guide-list li {padding-left:8px;margin-bottom:18px}
.prose {max-width:850px;color:var(--text-secondary);margin-top:24px}
.prose p+p {margin-top:18px}
footer {padding:38px 24px;text-align:center;border-top:1px solid var(--border);color:var(--text-secondary);font-size:.8rem;margin-top:40px}
footer p {margin-top:8px}
[hidden] {display:none!important}
@media(max-width:900px){.arc{grid-template-columns:repeat(2,1fr)}.arc h3{min-height:0}.nav-links a{padding:8px 10px}.reading-grid{grid-template-columns:1fr;gap:20px}}
@media(max-width:640px){.reading-card{padding:20px}.page-heading h1{font-size:2rem}.hero{padding-top:44px}.hero h1{font-size:2.4rem}.arc{grid-template-columns:1fr}.section{padding-left:20px;padding-right:20px}.nav-brand span{font-size:.95rem}.hero-image{margin-left:-20px;margin-right:-20px}.topic-top{align-items:flex-start;flex-wrap:wrap}.part-links{gap:6px}.schedule-overview th,.schedule-overview td{padding:8px}.schedule-overview table{font-size:.78rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}