/* =========================================================
   Kidniva Learning — catálogo
   Usa los tokens de styles.css
   ========================================================= */

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* ---------- Cabecera ---------- */
.chero {
  position: relative; max-width: var(--maxw); margin: 0 auto;
  padding: calc(var(--nav-h) + 56px) var(--gutter) 40px;
  display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 24px;
}
.chero__title { font-size: clamp(2.4rem, 5.6vw, 4.8rem); line-height: 1; max-width: 13ch; text-wrap: balance; margin-bottom: 1.2rem; }
.chero__title .hand { font-size: 1.15em; line-height: .8; }
.chero__lead { font-size: clamp(1.02rem, 1.2vw, 1.18rem); max-width: 40em; margin: 0; }
.chero__lead b { color: var(--teal-deep); }
.chero__kik { width: clamp(90px, 12vw, 150px); margin-bottom: -10px; }
@media (max-width: 640px) { .chero { grid-template-columns: 1fr; } .chero__kik { display: none; } }

/* ---------- Barra de filtros ---------- */
.cbar {
  position: sticky; top: var(--nav-h); z-index: 50;
  background: rgba(255, 251, 243, .96);
  border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line-soft);
}
@supports (backdrop-filter: blur(10px)) {
  .cbar { background: rgba(255, 251, 243, .82); backdrop-filter: blur(14px) saturate(160%); -webkit-backdrop-filter: blur(14px) saturate(160%); }
}
.cbar__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 12px var(--gutter);
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px;
}
.csearch {
  flex: 1 1 260px; display: flex; align-items: center; gap: 10px;
  background: #fff; border: 2px solid var(--line-soft); border-radius: 999px; padding: 0 16px;
  transition: border-color .2s;
}
.csearch:focus-within { border-color: var(--orange); }
.csearch svg { width: 18px; height: 18px; fill: none; stroke: var(--text); stroke-width: 2.2; stroke-linecap: round; flex: none; }
.csearch input { border: 0; background: transparent; font: 500 1rem var(--f-body); color: var(--ink); padding: 11px 0; width: 100%; outline: none; }
.cetapas { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.cetapas__label { font-weight: 700; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; color: var(--text); margin-right: 4px; }
.cetapas button {
  min-width: 36px; height: 36px; padding: 0 10px; border-radius: 999px; border: 2px solid var(--line-soft); background: #fff;
  font: 700 .92rem var(--f-body); color: var(--ink); cursor: pointer; transition: background .2s, border-color .2s, transform .25s var(--ease-spring);
}
.cetapas button:hover { border-color: var(--orange); transform: translateY(-2px); }
.cetapas button.is-on { background: var(--ink); border-color: var(--ink); color: var(--cream); }
.cetapas .cetapas__info { background: var(--yellow); border-color: var(--yellow); }
.cetapas__note {
  max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter) 14px; font-size: .92rem; color: var(--teal-deep);
}

/* ---------- Disposición ---------- */
.clayout {
  max-width: var(--maxw); margin: 0 auto; padding: 32px var(--gutter) 0;
  display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); align-items: start;
}
.cnav { position: sticky; top: calc(var(--nav-h) + 90px); display: grid; gap: 18px; max-height: calc(100vh - var(--nav-h) - 110px); overflow: auto; padding-bottom: 20px; scrollbar-width: thin; }
.cnav__group { display: grid; gap: 4px; }
.cnav__block {
  font-family: var(--f-display); font-weight: 800; font-size: 1.15rem; color: var(--ink); text-decoration: none;
  display: flex; align-items: center; gap: 8px;
}
.cnav__block::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--c, var(--orange)); }
.cnav__group--coral { --c: var(--coral); }
.cnav__group--teal { --c: var(--teal); }
.cnav__group--ink { --c: var(--ink); }
.cnav__subs { display: grid; gap: 1px; padding-left: 18px; border-left: 2px solid var(--line-soft); margin-left: 4px; }
.cnav__subs a { font-size: .92rem; font-weight: 500; text-decoration: none; padding: 3px 8px; border-radius: 8px; color: var(--text); transition: background .2s, color .2s; }
.cnav__subs a:hover { background: var(--yellow); color: var(--ink); }
.cnav a.is-current { color: var(--ink); font-weight: 700; background: rgba(245,166,35,.16); }
.cnav a.is-empty { opacity: .35; pointer-events: none; }
@media (max-width: 960px) {
  .clayout { grid-template-columns: 1fr; }
  .cnav {
    position: static; max-height: none; overflow: visible; display: flex; gap: 8px; overflow-x: auto; overflow-y: visible;
    padding: 4px 0 8px; scrollbar-width: none;
  }
  .cnav__group { display: contents; }
  .cnav__subs { display: none; }
  .cnav__block { flex: none; font-size: .95rem; padding: 8px 14px; border: 2px solid var(--line-soft); border-radius: 999px; background: #fff; }
}

/* ---------- Bloques y subbloques ---------- */
.cblock { padding-bottom: clamp(48px, 7vw, 90px); scroll-margin-top: calc(var(--nav-h) + 80px); }
.cblock__head { margin-bottom: 28px; padding-bottom: 20px; border-bottom: 2px solid var(--ink); }
.cblock__head .h2 { max-width: none; }
.cblock__head .h2::after { content: "."; color: var(--c, var(--orange)); }
.cblock--coral { --c: var(--coral); }
.cblock--teal { --c: var(--teal); }
.cblock--ink { --c: var(--ink); }
.cblock .label { color: var(--c, var(--orange)); }
.cblock__intro { margin: .8rem 0 0; font-size: 1.05rem; max-width: 40em; }
.csub { margin-bottom: 44px; scroll-margin-top: calc(var(--nav-h) + 80px); }
.csub__head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 18px; }
.csub__title { font-size: clamp(1.3rem, 2vw, 1.7rem); }
.csub__count {
  font: 700 .82rem/1 var(--f-body); padding: .4em .7em; border-radius: 999px; background: var(--c, var(--orange)); color: #fff;
}
.cblock--ink .csub__count { color: var(--cream); }
.csub.is-empty { display: none; }
.cblock.is-empty { display: none; }

.pgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: clamp(14px, 2vw, 24px); }
@media (max-width: 520px) { .pgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; } }

/* ---------- Tarjeta de producto ---------- */
.pcard {
  display: flex; flex-direction: column; background: #fff; border-radius: 18px; overflow: hidden;
  border: 2px solid var(--line-soft);
  transition: transform .45s var(--ease-spring), box-shadow .4s, border-color .3s;
}
.pcard:hover { transform: translateY(-5px); border-color: var(--c, var(--orange)); box-shadow: 0 22px 40px -28px rgba(80, 50, 10, .55); }
.pcard[hidden] { display: none; }
.pcard__cover { display: block; padding: 0; border: 0; background: var(--orange-soft); cursor: zoom-in; aspect-ratio: 400 / 566; overflow: hidden; }
.pcard__cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease-out); }
.pcard:hover .pcard__cover img { transform: scale(1.04); }
.pcard__body { padding: 14px 14px 12px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.pcard__meta { margin: 0; font-size: .78rem; font-weight: 600; color: #777; }
.pcard__etapa { color: var(--teal-deep); }
.pcard__title { font-family: var(--f-display); font-weight: 800; font-size: 1.02rem; line-height: 1.15; color: var(--ink); letter-spacing: -.01em; margin: 0; flex: 1; }
.pcard__price { margin: 0; font-family: var(--f-display); font-weight: 800; font-size: 1.1rem; color: var(--ink); }
.pcard__actions { display: grid; gap: 6px; }
.pcard__more { border: 0; background: none; padding: 2px 0 0; font: 600 .82rem var(--f-body); color: var(--text); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; text-align: left; }
.pcard__more:hover { color: var(--coral); }

.pbtn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4em; text-align: center;
  font: 700 .88rem/1.1 var(--f-body); padding: .75em 1em; border-radius: 999px; text-decoration: none;
  border: 2px solid transparent; transition: transform .25s var(--ease-spring), background .2s, box-shadow .2s;
}
.pbtn:hover { transform: translateY(-2px); }
.pbtn--buy { background: var(--coral); color: #fff; box-shadow: 0 3px 0 var(--coral-deep); }
.pbtn--buy.is-soon { background: var(--line-soft); color: #777; box-shadow: none; cursor: not-allowed; }
.pbtn--buy.is-soon:hover { transform: none; }
.pbtn--free { background: transparent; color: var(--teal-deep); border-color: var(--teal); }
.pbtn--free:hover { background: rgba(79,184,168,.12); }
.pbtn--free::before { content: "↓"; font-weight: 800; }

.cempty {
  display: flex; align-items: center; gap: 14px; background: #fff; border: 2px dashed var(--line); border-radius: 18px;
  padding: 20px 24px; font-weight: 600; margin: 0 0 40px;
}
.cempty[hidden] { display: none; }

/* ---------- Cómo comprar ---------- */
.cbuy {
  max-width: var(--maxw); margin: 0 auto clamp(60px, 8vw, 100px); padding: 32px var(--gutter);
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  border-top: 2px dashed var(--line);
}
.cbuy__item { display: flex; gap: 14px; align-items: flex-start; }
.cbuy__n { font-family: var(--f-hand); font-weight: 700; font-size: 3rem; line-height: .8; color: var(--orange); }
.cbuy__item:nth-child(2) .cbuy__n { color: var(--coral); }
.cbuy__item:nth-child(3) .cbuy__n { color: var(--teal); }
.cbuy h3 { font-size: 1.2rem; margin-bottom: .3em; }
.cbuy p { margin: 0; font-size: .95rem; }
@media (max-width: 820px) { .cbuy { grid-template-columns: 1fr; } }

/* ---------- Modal de detalle ---------- */
.pmodal {
  width: min(980px, calc(100vw - 24px)); max-height: calc(100vh - 32px); padding: 0; border: 0; border-radius: 26px;
  background: var(--cream); color: var(--text); box-shadow: 0 40px 100px -30px rgba(0,0,0,.5);
  overflow: auto;
}
.pmodal::backdrop { background: rgba(40, 30, 15, .55); }
@supports (backdrop-filter: blur(4px)) { .pmodal::backdrop { backdrop-filter: blur(4px); } }
.pmodal[open] { animation: pmodalIn .45s var(--ease-out); }
@keyframes pmodalIn { from { opacity: 0; transform: translateY(24px) scale(.98); } to { opacity: 1; transform: none; } }
.pmodal__close {
  position: sticky; top: 12px; float: right; margin: 12px 12px 0 0; z-index: 2;
  width: 42px; height: 42px; border-radius: 50%; border: 2px solid var(--ink); background: var(--cream);
  font: 700 1.5rem/1 var(--f-body); color: var(--ink); cursor: pointer;
}
.pmodal__grid { display: grid; grid-template-columns: 300px 1fr; gap: clamp(20px, 4vw, 44px); padding: clamp(20px, 4vw, 40px); padding-bottom: 12px; }
.pmodal__cover { width: 100%; border-radius: 8px; box-shadow: var(--shadow-paper); transform: rotate(-2deg); background: #fff; }
.pmodal__meta { margin: 0 0 .4em; font-weight: 700; font-size: .85rem; color: var(--teal-deep); letter-spacing: .02em; }
.pmodal__title { font-size: clamp(1.6rem, 3.2vw, 2.4rem); margin-bottom: .5em; text-wrap: balance; }
.pmodal .chips li { background: var(--yellow); }
.pmodal__desc { font-size: 1.02rem; }
.pmodal__h { font-size: 1.05rem; margin: 1.2em 0 .6em; }
.pmodal__list { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 6px 18px; font-size: .94rem; }
.pmodal__list li { position: relative; padding-left: 20px; }
.pmodal__list li::before { content: ""; position: absolute; left: 2px; top: .55em; width: 9px; height: 9px; border-radius: 50%; background: var(--orange); }
.pmodal__list li:nth-child(3n+2)::before { background: var(--coral); }
.pmodal__list li:nth-child(3n)::before { background: var(--teal); }
.pmodal__list .is-more { color: #777; font-style: italic; }
.pmodal__list .is-more::before { background: var(--line); }
.pmodal__price { font-family: var(--f-display); font-weight: 800; font-size: 1.6rem; color: var(--ink); margin: 1.2rem 0 0; }
.pmodal__actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 1.2rem; }
.pmodal__actions .pbtn { font-size: 1rem; padding: .95em 1.5em; }
.pmodal__small { font-size: .85rem; color: #777; margin: .8em 0 0; }
.pmodal__previews { padding: 0 clamp(20px, 4vw, 40px) clamp(20px, 4vw, 36px); }
.pmodal__strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.pmodal__strip img { width: 100%; border-radius: 6px; box-shadow: var(--shadow-paper); background: #fff; }
@media (max-width: 760px) {
  .pmodal__grid { grid-template-columns: 1fr; }
  .pmodal__media { max-width: 220px; }
  .pmodal__strip { grid-template-columns: repeat(3, 70%); overflow-x: auto; overflow-y: visible; padding-bottom: 10px; }
}

@media (max-width: 640px) {
  .cbar__inner { padding: 8px var(--gutter); gap: 8px; }
  .csearch input { padding: 8px 0; }
  .cetapas { flex-wrap: nowrap; overflow-x: auto; width: 100%; scrollbar-width: none; padding-bottom: 2px; }
  .cetapas::-webkit-scrollbar { display: none; }
  .cetapas__label { display: none; }
  .cetapas button { min-width: 34px; height: 32px; flex: none; font-size: .85rem; }
  .pcard__body { padding: 10px 10px 10px; }
  .pbtn { font-size: .8rem; padding: .7em .6em; }
}

/* ---------- Guía docente en el catálogo ---------- */
.pcard__guide { margin: 0; font-size: .76rem; font-weight: 700; color: var(--teal-deep); }
.cguide {
  max-width: calc(var(--maxw) - 2 * var(--gutter)); margin: 0 auto 28px; width: calc(100% - 2 * var(--gutter));
  display: flex; align-items: center; gap: 18px; text-decoration: none; color: var(--text);
  background: #DDF1ED; border-radius: 20px; padding: 14px 22px 14px 14px; transition: transform .3s var(--ease-spring);
}
.cguide:hover { transform: translateY(-3px); }
.cguide img { width: 54px; border-radius: 4px; box-shadow: var(--shadow-paper); transform: rotate(-5deg); flex: none; }
.cguide b { color: var(--ink); }
.cguide__go { margin-left: auto; font: 800 1.4rem/1 var(--f-display); color: var(--teal-deep); flex: none; }
.pmodal__guide {
  display: flex; gap: 14px; align-items: center; margin-top: 1.2rem; padding: 12px 16px 12px 12px;
  background: #DDF1ED; border-radius: 16px; font-size: .9rem;
}
.pmodal__guide img { width: 48px; border-radius: 4px; transform: rotate(-5deg); box-shadow: var(--shadow-paper); flex: none; }
.pmodal__guide p { margin: 0; }
.pmodal__guide .pmodal__guide-t { font-weight: 800; color: var(--ink); font-family: var(--f-display); font-size: 1rem; margin-bottom: 2px; }
.pmodal__guide a { color: var(--teal-deep); font-weight: 700; }