:root{
  --paper:#f6f2ea; --surface:#fffdf8; --ink:#29221b; --muted:#6d6154;
  --wine:#722030; --wine-deep:#571724; --wine-soft:#8d3a4b;
  --gold:#a8843c; --gold-soft:#c9a96a; --line:#e5dccb; --line-soft:#efe8da;
  --shadow:0 1px 2px rgba(60,40,25,.06),0 8px 28px -12px rgba(60,40,25,.18);
  --serif:'Iowan Old Style','Palatino Linotype','Book Antiqua',Palatino,Georgia,serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);
  font-size:16.5px;line-height:1.72;
  background-image:radial-gradient(rgba(114,32,48,.035) 1px,transparent 1px);
  background-size:26px 26px}
a{color:var(--wine);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--wine-deep)}
:focus-visible{outline:2.5px solid var(--wine);outline-offset:2px;border-radius:2px}
.skip{position:absolute;left:-9999px;top:0;background:var(--wine);color:#fff;padding:.6rem 1rem;z-index:99;border-radius:0 0 8px 0}
.skip:focus{left:0}
::selection{background:var(--wine);color:#fdf6ec}

/* ---------- top utility bar ---------- */
.topbar{background:var(--wine-deep);color:#f3e6d2;font-family:var(--sans);font-size:.82rem}
.topbar-in{max-width:1280px;margin:0 auto;padding:.42rem 1.2rem;display:flex;align-items:center;gap:1.1rem;flex-wrap:wrap}
.topbar a{color:#f3e6d2;text-decoration:none;letter-spacing:.02em;opacity:.92;padding:.15rem 0;border-bottom:1.5px solid transparent}
.topbar a:hover{opacity:1;border-bottom-color:var(--gold-soft)}
.topbar a[aria-current="page"]{opacity:1;border-bottom-color:var(--gold-soft);font-weight:600}
.topbar .donate{margin-left:auto;background:var(--gold);color:#241304;font-weight:650;
  padding:.3rem .85rem;border-radius:999px;border:none;letter-spacing:.01em}
.topbar .donate:hover{background:var(--gold-soft);border-bottom-color:transparent}

/* ---------- masthead ---------- */
.masthead{background:linear-gradient(180deg,var(--surface),#fbf7ef);border-bottom:1px solid var(--line)}
.masthead-in{max-width:1280px;margin:0 auto;padding:1.5rem 1.2rem 1.35rem;display:flex;align-items:center;gap:1rem}
.mark{flex:0 0 auto;width:52px;height:52px}
.site-name{margin:0;font-size:clamp(1.5rem,3.2vw,2.05rem);line-height:1.15;font-weight:600;letter-spacing:.01em}
.site-name a{color:var(--ink);text-decoration:none}
.site-name .rv{color:var(--wine)}
.tagline{margin:.15rem 0 0;font-family:var(--sans);font-size:.86rem;color:var(--muted);letter-spacing:.14em;text-transform:uppercase}

/* ---------- layout ---------- */
.layout{max-width:1280px;margin:0 auto;padding:1.6rem 1.2rem 3rem;display:grid;
  grid-template-columns:252px minmax(0,1fr) 252px;gap:1.6rem;align-items:start}
.sidecard{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);overflow:hidden}
.sidecard + .sidecard{margin-top:1.3rem}
.side-h{font-family:var(--sans);font-size:.76rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:#f6ecdc;background:var(--wine);margin:0;padding:.68rem 1rem;display:flex;align-items:center;gap:.5rem}
.side-h::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,rgba(246,236,220,.5),transparent)}
nav.vnav ul{list-style:none;margin:0;padding:.45rem 0}
nav.vnav li{margin:0}
nav.vnav a{display:block;font-family:var(--sans);font-size:.875rem;line-height:1.35;color:#4a3f33;
  text-decoration:none;padding:.42rem 1rem .42rem .95rem;border-left:3px solid transparent}
nav.vnav a:hover{background:#f7f0e2;color:var(--wine-deep);border-left-color:var(--gold-soft)}
nav.vnav a[aria-current="page"]{background:#f6eee0;color:var(--wine-deep);font-weight:700;border-left-color:var(--wine)}
.lesson-list a{padding-left:.95rem}
details.accordion > summary{display:none;cursor:pointer;list-style:none;font-family:var(--sans);font-weight:650;font-size:.95rem;
  padding:.8rem 1.1rem;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);
  color:var(--wine-deep);user-select:none}
details.accordion > summary::-webkit-details-marker{display:none}
details.accordion > summary::after{content:"▾";float:right;transition:transform .2s}
details.accordion[open] > summary::after{transform:rotate(180deg)}

/* ---------- content ---------- */
.content{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);
  padding:clamp(1.4rem,3.5vw,2.6rem)}
.crumbs{font-family:var(--sans);font-size:.8rem;color:var(--muted);margin:0 0 1rem}
.crumbs a{color:var(--muted)} .crumbs a:hover{color:var(--wine)}
.content h1{font-size:clamp(1.65rem,3.4vw,2.25rem);line-height:1.2;margin:0 0 .4rem;font-weight:650;color:var(--wine-deep)}
.kicker{font-family:var(--sans);font-size:.78rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin:0 0 .55rem}
.flourish{display:flex;align-items:center;gap:.7rem;margin:1.05rem 0 1.5rem;color:var(--gold)}
.flourish::before,.flourish::after{content:"";height:1px;flex:1;background:linear-gradient(90deg,transparent,var(--line));}
.flourish::after{background:linear-gradient(90deg,var(--line),transparent)}
.flourish svg{flex:0 0 auto;opacity:.9}
.content h2{font-size:1.17rem;color:var(--wine-deep);margin:2.1rem 0 .7rem;line-height:1.35;font-weight:650;
  letter-spacing:.045em;padding-bottom:.35rem;border-bottom:1px solid var(--line-soft)}
.content p{margin:0 0 1.05rem}
.content .lead{font-size:1.06em;color:#3d3125}
.content .lead strong:first-child{color:var(--wine)}
.content figure{margin:1.8rem 0;text-align:center}
.content figure img{max-width:100%;height:auto;border-radius:10px;border:1px solid var(--line);
  box-shadow:0 10px 30px -14px rgba(60,40,25,.35)}
.content figcaption{font-family:var(--sans);font-size:.8rem;color:var(--muted);margin-top:.6rem}
hr.sep{border:0;height:1px;background:var(--line);margin:1.9rem auto;max-width:60%}

/* audio */
.audio-block{display:flex;align-items:center;gap:.9rem;background:#f7f0e2;border:1px solid var(--line);
  border-radius:12px;padding:.8rem 1rem;margin:1.25rem 0 1.6rem}
.audio-block .icon{flex:0 0 auto;width:38px;height:38px;border-radius:50%;background:var(--wine);
  display:flex;align-items:center;justify-content:center;color:#f6ecdc}
.audio-block .meta{font-family:var(--sans);font-size:.8rem;color:var(--muted);margin:0 0 .25rem}
.audio-block .body{flex:1;min-width:0}
.audio-block audio{width:100%;max-width:460px;height:36px;display:block}

/* FAQ */
.faq-q,.faq-a{display:flex;gap:.85rem;margin:0 0 .9rem}
.faq-q{margin-top:1.5rem}
.faq-q span,.faq-a span{flex:0 0 auto;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--sans);font-size:.8rem;font-weight:800;margin-top:.15rem}
.faq-q span{background:var(--wine);color:#f6ecdc}
.faq-a span{background:#efe4cd;color:#5d4a22}
.faq-q p{font-weight:700;color:var(--wine-deep);margin:0;padding-top:.2rem}
.faq-a p{margin:0;padding-top:.2rem}

/* lesson index on course page */
ol.lessons-index{list-style:none;margin:1.4rem 0 0;padding:0;counter-reset:lec}
ol.lessons-index li{position:relative;padding:.85rem 1rem .85rem 3.4rem;border:1px solid var(--line);
  border-radius:12px;margin-bottom:.65rem;background:#fffdf8;transition:border-color .15s}
ol.lessons-index li:hover{border-color:var(--gold-soft)}
ol.lessons-index li::before{counter-increment:lec;content:counter(lec);position:absolute;left:.85rem;top:.95rem;
  width:1.9rem;height:1.9rem;border-radius:50%;background:#f3ead7;color:var(--wine-deep);
  font-family:var(--sans);font-weight:750;font-size:.85rem;display:flex;align-items:center;justify-content:center}
ol.lessons-index .lt{font-family:var(--sans);font-weight:700;font-size:.95rem}
ol.lessons-index .lt a{text-decoration:none;color:var(--wine-deep)}
ol.lessons-index .lt a:hover{text-decoration:underline}
ol.lessons-index p{margin:.2rem 0 0;font-size:.93em;color:#4a4034}

/* novedades / donate cards */
.nov-list{list-style:none;margin:0;padding:.4rem .3rem}
.nov-list li{padding:.55rem .7rem;border-bottom:1px solid var(--line-soft)}
.nov-list li:last-child{border-bottom:none}
.nov-list a{font-family:var(--sans);font-size:.855rem;line-height:1.45;color:#4a3f33;text-decoration:none;display:block}
.nov-list a strong{color:var(--wine-deep)}
.nov-list a:hover strong{text-decoration:underline}
.donate-card{padding:1rem 1.1rem;text-align:center}
.donate-card p{font-family:var(--sans);font-size:.83rem;color:var(--muted);margin:.2rem 0 .8rem;line-height:1.5}
.btn-donate{display:inline-block;background:var(--gold);color:#241304;font-family:var(--sans);font-weight:700;font-size:.9rem;
  border:none;border-radius:999px;padding:.55rem 1.3rem;cursor:pointer;text-decoration:none}
.btn-donate:hover{background:var(--gold-soft)}

/* footer */
footer{background:var(--wine-deep);color:#e9d8bf;margin-top:2rem}
.foot-in{max-width:1280px;margin:0 auto;padding:1.7rem 1.2rem;display:flex;gap:1.2rem;align-items:center;flex-wrap:wrap;
  font-family:var(--sans);font-size:.84rem}
.foot-in nav{display:flex;gap:1.1rem;flex-wrap:wrap}
.foot-in a{color:#f0e2ca;text-decoration:none}
.foot-in a:hover{text-decoration:underline}
.foot-brand{margin-left:auto;opacity:.85;font-family:var(--serif);font-style:italic}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .layout{grid-template-columns:225px minmax(0,1fr);}
  .col-right{grid-column:1 / -1;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.3rem}
  .col-right .sidecard + .sidecard{margin-top:0}
}
@media (max-width:860px){
  .layout{grid-template-columns:minmax(0,1fr);padding-top:1.1rem}
  details.accordion > summary{display:block}
  details.accordion{margin-bottom:1rem}
  details.accordion .sidecard{margin-top:.6rem}
  .col-right{grid-template-columns:minmax(0,1fr)}
  .masthead-in{padding:1.1rem 1.2rem}
  .mark{width:44px;height:44px}
}
@media print{
  .topbar,.col-left,.col-right,footer{display:none}
  .layout{display:block}
  .content{border:none;box-shadow:none;padding:0}
}

/* tables in lesson content */
table.tbl{border-collapse:collapse;margin:1.6rem auto;font-family:var(--sans);font-size:.9rem;max-width:100%}
table.tbl td,table.tbl th{border:1px solid var(--line);padding:.5rem .8rem;vertical-align:top;text-align:left}
table.tbl tr:nth-child(odd) td{background:#fbf7ee}
table.tbl tr:first-child td strong:only-child{color:var(--wine-deep)}
.content ul,.content ol:not(.lessons-index){margin:0 0 1.05rem;padding-left:1.5rem}
.content li{margin-bottom:.35rem}
.note-exclusion{font-family:var(--sans);font-size:.8rem;color:var(--muted)}

/* lessons dropdown: plain card on desktop, accordion under Materias on phones */
.col-right > details.acc-lessons + .sidecard{margin-top:1.3rem}
@media (max-width:860px){
  .col-right{display:contents}
  .col-left{order:1}
  details.acc-lessons{order:2;margin-top:-1rem;margin-bottom:0}
  .col-left details.accordion{margin-bottom:0}
  .content{order:3}
  .col-right > .sidecard,.col-right > details:not(.acc-lessons){order:4}
}