:root{--bg: #faf7f2;--bg-card: #ffffff;--text: #2b2620;--text-muted: #6f6659;--accent: #7a2e2e;--accent-soft: #f3e4e4;--border: #e4dcd0;--shadow: 0 1px 3px rgb(43 38 32 / .08);--serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;--sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}@media(prefers-color-scheme:dark){:root{--bg: #1c1916;--bg-card: #262220;--text: #ece5db;--text-muted: #a89c8c;--accent: #d99a9a;--accent-soft: #3a2b2b;--border: #3a352f;--shadow: 0 1px 3px rgb(0 0 0 / .3)}}*{margin:0;padding:0;box-sizing:border-box}html{font-family:var(--sans);background:var(--bg);color:var(--text)}body{min-height:100vh;display:flex;flex-direction:column;line-height:1.6}main{flex:1;width:min(46rem,100% - 2.5rem);margin-inline:auto;padding-block:2.5rem 4rem}h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.25;text-wrap:balance}a{color:var(--accent)}.site-header{border-bottom:1px solid var(--border);background:var(--bg-card)}.site-header .inner{width:min(46rem,100% - 2.5rem);margin-inline:auto;padding-block:.9rem;display:flex;align-items:baseline;justify-content:space-between;gap:1rem;flex-wrap:wrap}.site-header .brand{font-family:var(--serif);font-size:1.35rem;font-weight:700;color:var(--text);text-decoration:none}.site-header .brand span{color:var(--accent)}.site-header nav{display:flex;gap:1.25rem}.site-header nav a{text-decoration:none;color:var(--text-muted);font-size:.95rem}.site-header nav a:hover,.site-header nav a[aria-current=page]{color:var(--accent)}.site-footer{border-top:1px solid var(--border);color:var(--text-muted);font-size:.85rem;text-align:center;padding-block:1.25rem}.card-list{list-style:none;display:flex;flex-direction:column;gap:.9rem;margin-top:1.75rem}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);padding:1.1rem 1.25rem}.card a.card-title{font-family:var(--serif);font-size:1.2rem;font-weight:600;color:var(--text);text-decoration:none}.card a.card-title:hover{color:var(--accent)}.card p{margin-top:.35rem;color:var(--text-muted);font-size:.95rem}.card .meta{display:flex;align-items:center;gap:.6rem;margin-bottom:.3rem}.badge{display:inline-block;font-size:.72rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--accent);background:var(--accent-soft);border-radius:999px;padding:.15rem .6rem}.aula-numero{font-family:var(--serif);font-size:.85rem;font-weight:600;color:var(--text-muted);letter-spacing:.06em;text-transform:uppercase}.page-header{margin-bottom:1.5rem}.page-header h1{font-size:2rem;margin-top:.4rem}.page-header .subtitle{color:var(--text-muted);margin-top:.5rem}.prose{font-size:1.05rem;line-height:1.75}.prose>*+*{margin-top:1em}.prose h2{font-size:1.45rem;margin-top:1.8em}.prose h3{font-size:1.15rem;margin-top:1.5em}.prose ul,.prose ol{padding-left:1.4rem}.prose blockquote{border-left:3px solid var(--accent);padding:.35rem 0 .35rem 1rem;color:var(--text-muted);font-style:italic}.prose blockquote p:not(:first-child):last-child{margin-top:.5em;font-style:normal;font-size:.88em;letter-spacing:.01em}.prose hr{border:none;border-top:1px solid var(--border);margin-block:2rem}.refs-section{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--border)}.refs-section h2{font-size:1.3rem}.aula-nav{margin-top:2.5rem;display:flex;justify-content:space-between;gap:1rem;font-size:.95rem}.aula-nav a{text-decoration:none;max-width:48%}.aula-nav a:hover{text-decoration:underline}.filtros{display:flex;gap:.5rem;margin-top:1.5rem;flex-wrap:wrap}.filtros a{text-decoration:none;font-size:.9rem;color:var(--text-muted);border:1px solid var(--border);border-radius:999px;padding:.25rem .9rem;background:var(--bg-card)}.filtros a[aria-current=true]{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}.video-embed{aspect-ratio:16 / 9;width:100%;border:0;border-radius:10px;box-shadow:var(--shadow);margin-top:1.5rem}.pdf-embed{width:100%;height:75vh;border:1px solid var(--border);border-radius:10px;margin-top:1.5rem}.botao-externo{display:inline-block;background:var(--accent);color:var(--bg);text-decoration:none;font-weight:600;font-size:.95rem;border-radius:8px;padding:.55rem 1.1rem}.botao-externo:hover{opacity:.9}.bloco-titulo{font-size:1.35rem;margin-top:2.5rem}.download-link{display:inline-block;margin-top:1rem;font-size:.95rem}.busca-campo{margin-top:1rem}.busca-campo input[type=search]{width:100%;font-family:var(--sans);font-size:.95rem;color:var(--text);background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:.6rem .9rem}.busca-campo input[type=search]:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}.busca-campo input[type=search]::placeholder{color:var(--text-muted)}.busca-status{margin-top:.4rem;min-height:1.2em;font-size:.85rem;color:var(--text-muted)}.busca-vazia{margin-top:1.5rem;color:var(--text-muted)}.card[hidden]{display:none}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}