:root {
  --ink: #102923;
  --ink-soft: #29463f;
  --paper: #f7f4ed;
  --cream: #efece4;
  --white: #fffdf8;
  --coral: #ff7057;
  --line: rgba(16, 41, 35, .15);
  --display: "DM Serif Display", Georgia, serif;
  --sans: "DM Sans", Arial, sans-serif;
  --radius: 18px;
  --shadow: 0 16px 46px rgba(24, 37, 31, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); }
img { display: block; width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.shell { width: min(1180px, calc(100% - 36px)); margin-inline: auto; }
.section { padding-block: 66px; }
.eyebrow { margin: 0 0 18px; font-size: .72rem; font-weight: 700; letter-spacing: .16em; }
.eyebrow--dark { color: var(--ink-soft); }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: var(--display); font-weight: 400; line-height: .98; }
h2 { margin-bottom: 22px; font-size: clamp(2rem, 4vw, 3.5rem); }

.hero { min-height: 730px; position: relative; isolation: isolate; color: white; background: var(--ink) url("assets/images/hero-lingo.jpg") 58% center / cover no-repeat; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(6, 22, 18, .9) 0%, rgba(6, 22, 18, .65) 37%, rgba(6, 22, 18, .08) 70%), linear-gradient(0deg, rgba(6,22,18,.54), transparent 37%); }
.nav { height: 84px; display: flex; align-items: center; gap: 28px; }
.brand { margin-right: auto; display: inline-flex; align-items: center; font-size: 1.55rem; font-weight: 700; letter-spacing: -.04em; }
.brand i { width: 10px; height: 10px; margin: 4px 0 0 3px; border-radius: 50%; background: var(--coral); }
.nav-menu { display: flex; gap: 28px; font-size: .87rem; }
.nav-menu a, .nav-actions a { transition: opacity .2s ease, transform .2s ease; }
.nav-menu a:hover, .nav-actions a:hover { opacity: .8; }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.cart { display: grid; width: 38px; height: 38px; place-items: center; }
.cart svg { width: 23px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.button { min-height: 46px; padding: 0 22px; display: inline-flex; align-items: center; justify-content: center; gap: 14px; border: 1px solid transparent; border-radius: 999px; font-size: .86rem; font-weight: 600; }
.button span { font-size: 1.1em; transition: transform .2s ease; }
.button:hover span { transform: translateX(4px); }
.button--ghost { border-color: rgba(255, 255, 255, .6); }
.button--dark { background: var(--ink); color: white; }
.button--coral { background: var(--coral); color: white; box-shadow: 0 8px 24px rgba(255, 112, 87, .25); }
.menu-button { display: none; padding: 8px; border: 0; background: transparent; color: white; }
.menu-button span { display: block; width: 24px; height: 2px; margin: 5px; background: currentColor; }

/* En pantallas amplias, el hero respira en un marco más ancho que el resto
   de la página para equilibrar el texto con la notebook de la fotografía. */
@media (min-width: 1440px) {
  .hero .shell { width: min(1680px, calc(100% - 96px)); }
}

.hero__content { min-height: 515px; display: flex; align-items: center; }
.hero__copy { max-width: 610px; padding-bottom: 25px; }
.hero h1 { margin-bottom: 22px; font-size: clamp(4rem, 7vw, 6.4rem); letter-spacing: -.045em; }
.hero__description { max-width: 560px; margin-bottom: 28px; color: rgba(255,255,255,.9); font-size: 1.06rem; line-height: 1.55; }
.hero__features { min-height: 130px; display: grid; grid-template-columns: repeat(3, 1fr); align-items: center; gap: 30px; border-top: 1px solid rgba(255,255,255,.2); }
.hero-feature { display: grid; grid-template-columns: 42px 1fr; align-items: center; gap: 14px; }
.hero-feature svg { width: 40px; height: 40px; fill: none; stroke: white; stroke-width: 1.5; }
.hero-feature strong { display: block; margin-bottom: 3px; font-size: .92rem; }
.hero-feature span { color: rgba(255,255,255,.72); font-size: .78rem; }

.familiar { padding-bottom: 40px; }
.familiar h2 { font-size: clamp(2.2rem, 4vw, 3.4rem); }
.pain-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.pain { min-height: 86px; padding: 20px 23px; border-radius: 16px; background: #efede6; color: #465851; line-height: 1.38; }
.pain::before { content: "“"; font-family: var(--display); font-size: 1.6rem; color: var(--coral); }
.promise { margin-top: 24px; padding: 32px 38px; display: grid; grid-template-columns: 1.05fr 1fr; gap: 46px; align-items: center; border-radius: var(--radius); background: #e9eee7; }
.promise__lead { display: flex; align-items: center; gap: 23px; }
.promise__check { flex: 0 0 54px; width: 54px; height: 54px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: white; font-size: 1.5rem; }
.promise h3 { margin: 0; font-size: clamp(1.5rem, 3vw, 2.3rem); line-height: 1.08; }
.promise ul { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.promise li { display: flex; gap: 10px; align-items: flex-start; font-size: .9rem; }
.promise li::before { content: "✓"; flex: 0 0 20px; width: 20px; height: 20px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: white; font-size: .7rem; }

.packs { padding-top: 44px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; }
.section-heading h2 { margin-bottom: 0; }
.section-heading > a { margin-bottom: 8px; font-size: .84rem; font-weight: 600; }
.section-heading > a span { margin-left: 9px; }
.pack-grid { margin-top: 30px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.pack-carousel { margin-top: 30px; }
.pack-carousel__viewport { overflow-x: auto; scroll-snap-type: x mandatory; -ms-overflow-style: none; scrollbar-width: none; touch-action: pan-y; }
.pack-carousel__viewport::-webkit-scrollbar { display: none; }
.pack-carousel__viewport.is-dragging { cursor: grabbing; scroll-snap-type: none; user-select: none; -webkit-user-select: none; }
.pack-carousel__viewport.is-momentum { scroll-snap-type: none; }
.pack-carousel__viewport.is-dragging img { -webkit-user-drag: none; user-select: none; }
@media (pointer: fine) { .pack-carousel__viewport { cursor: grab; } }
.pack-carousel__track { display: flex; gap: 16px; padding: 1px 1px 16px; }
.pack-carousel .pack-card { min-width: calc((100% - 48px) / 4); flex: 0 0 calc((100% - 48px) / 4); scroll-snap-align: start; }
.pack-carousel__controls { margin-top: 4px; display: flex; align-items: center; justify-content: flex-end; gap: 10px; }
.pack-carousel__controls span { min-width: 120px; color: #65716c; font-size: .73rem; text-align: center; }
.pack-carousel__button { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: var(--white); color: var(--ink); cursor: pointer; font-size: 1.05rem; transition: background .2s ease, color .2s ease, opacity .2s ease; }
.pack-carousel__button:hover { background: var(--ink); color: white; }
.pack-carousel__button:disabled { opacity: .35; cursor: default; }
.pack-card { overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: var(--white); transition: transform .25s ease, box-shadow .25s ease; }
.pack-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.pack-card__image { position: relative; aspect-ratio: 4 / 3; overflow: hidden; }
.pack-card__image a { display: block; width: 100%; height: 100%; }
.pack-card__image img { height: 100%; object-fit: cover; transition: transform .5s ease; }
.pack-card:hover img { transform: scale(1.035); }
.level { position: absolute; top: 12px; left: 12px; padding: 6px 9px; border-radius: 7px; background: rgba(255,253,248,.94); color: var(--ink); font-size: .72rem; font-weight: 700; }
.pack-card__body { padding: 17px 17px 19px; }
.pack-card h3 { margin-bottom: 8px; font-size: 1.35rem; line-height: 1.05; }
.pack-card p { min-height: 56px; margin-bottom: 13px; color: #65716c; font-size: .78rem; line-height: 1.45; }
.pack-link { display: inline-flex; gap: 8px; align-items: center; font-size: .78rem; font-weight: 700; border-bottom: 1px solid currentColor; }

.materials { width: min(980px, calc(100% - 36px)); padding: 42px 0 58px; }
.materials__heading { text-align: center; }
.materials__heading h2 { max-width: 720px; margin: 0 auto; }
.materials__grid { max-width: 900px; margin: 28px auto 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.material-card { position: relative; min-height: 190px; padding: 26px 28px; display: flex; flex-direction: column; justify-content: flex-start; overflow: hidden; border: 1px solid rgba(16, 41, 35, .13); border-radius: 16px; background: linear-gradient(145deg, #fffdf8 0%, #f7f3eb 100%); box-shadow: 0 12px 34px rgba(24, 37, 31, .06); }
.material-card::after { content: ""; position: absolute; right: -42px; bottom: -52px; width: 140px; height: 140px; border-radius: 50%; background: rgba(255, 112, 87, .08); }
.material-card:first-child { background: linear-gradient(145deg, #edf2eb 0%, #e5ece4 100%); }
.material-card__icon { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: white; font-family: var(--display); font-size: 1.08rem; box-shadow: 0 7px 16px rgba(16, 41, 35, .16); }
.material-card h3 { margin: 20px 0 8px; font-size: 1.7rem; }
.material-card p { position: relative; z-index: 1; max-width: 380px; margin: 0; color: #53655f; font-size: .9rem; line-height: 1.5; }
.materials__note { max-width: 680px; margin: 22px auto 0; text-align: center; color: var(--ink-soft); font-family: var(--display); font-size: clamp(1.25rem, 2.2vw, 1.75rem); line-height: 1.22; }

.sample { min-height: 410px; padding-inline: max(18px, calc((100vw - 1180px) / 2)); display: grid; grid-template-columns: 1fr 1fr; gap: 55px; align-items: center; overflow: hidden; background: #f4ded3; }
.sample__visual { position: relative; height: 310px; }
.sample__image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; border-radius: 10px; box-shadow: 0 18px 50px rgba(55,34,24,.16); opacity: 0; transition: opacity .8s ease; }
.sample__image.is-active { opacity: 1; }
.paper { position: absolute; width: 78%; height: 290px; padding: 30px; border-radius: 4px; background: #fffdf7; box-shadow: 0 18px 50px rgba(55,34,24,.12); }
.paper--back { left: -7%; top: 30px; transform: rotate(-10deg); background: #eddccf; }
.paper--front { left: 12%; top: 0; transform: rotate(-5deg); }
.paper span { font-size: .62rem; font-weight: 700; letter-spacing: .13em; }
.paper h3 { margin: 24px 0 36px; font-size: 2.15rem; }
.paper__line { width: 75%; height: 7px; margin-top: 12px; background: #e7e3db; }
.paper__line--short { width: 48%; }
.sample__copy { max-width: 510px; }
.sample__english { margin-bottom: 12px !important; color: var(--ink) !important; font-family: var(--display); font-size: 1.15rem; font-style: italic; }
.sample__copy h2 { margin-bottom: 14px; }
.sample__copy p:not(.eyebrow) { margin-bottom: 25px; color: #3c514a; line-height: 1.55; }
.sample__copy .sample__reason { color: var(--ink); font-family: var(--display); font-size: 1.18rem; line-height: 1.35; }

.closing { margin-block: 60px; padding: 46px 54px; display: grid; grid-template-columns: 1.2fr 1fr auto; align-items: center; gap: 36px; border-radius: 8px; background: var(--ink); color: white; }
.closing h2 { margin: 0; font-size: clamp(2rem, 4vw, 3rem); }
.closing p { margin: 0; color: rgba(255,255,255,.82); line-height: 1.6; }
.footer { padding-block: 25px 38px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 30px; border-top: 1px solid var(--line); color: #617069; font-size: .78rem; }
.footer .brand { margin: 0; color: var(--ink); }
.footer p { margin: 0; }

@media (max-width: 900px) {
  .nav-menu { position: absolute; top: 72px; left: 18px; right: 18px; padding: 18px; display: none; flex-direction: column; gap: 14px; border-radius: 14px; background: var(--ink); box-shadow: var(--shadow); }
  .nav-menu.is-open { display: flex; }
  .menu-button { display: block; }
  .nav-actions .cart, .nav-actions .button--ghost { display: none; }
  .hero { background-position: 62% center; }
  .pack-grid { grid-template-columns: repeat(2, 1fr); }
  .pack-carousel .pack-card { min-width: calc((100% - 16px) / 2); flex-basis: calc((100% - 16px) / 2); }
  .closing { grid-template-columns: 1fr 1fr; }
  .closing .button { grid-column: 1 / -1; justify-self: start; }
}

@media (max-width: 640px) {
  .shell { width: min(100% - 28px, 1180px); }
  .section { padding-block: 50px; }
  .hero { min-height: 760px; background-position: 68% center; }
  .hero::before { background: linear-gradient(180deg, rgba(7,25,20,.87) 0%, rgba(7,25,20,.71) 62%, rgba(7,25,20,.86) 100%); }
  .nav { height: 72px; }
  .nav-actions .button { min-height: 40px; padding-inline: 15px; font-size: .76rem; }
  .hero__content { min-height: 500px; align-items: flex-start; padding-top: 70px; }
  .hero h1 { font-size: clamp(3.35rem, 17vw, 5rem); }
  .hero__description { font-size: .95rem; }
  .hero__features { min-height: 180px; grid-template-columns: 1fr; gap: 14px; padding-block: 22px; }
  .hero-feature { grid-template-columns: 34px 1fr; }
  .hero-feature svg { width: 31px; height: 31px; }
  .pain-points, .promise, .pack-grid, .sample, .materials__grid { grid-template-columns: 1fr; }
  .pain-points { gap: 10px; }
  .pain { min-height: auto; }
  .promise { padding: 27px 23px; gap: 28px; }
  .promise__lead { align-items: flex-start; }
  .promise__check { flex-basis: 44px; width: 44px; height: 44px; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .pack-grid { gap: 14px; }
  .pack-carousel { margin-top: 24px; }
  .pack-carousel .pack-card { min-width: 84%; flex-basis: 84%; }
  .pack-carousel__controls { justify-content: space-between; }
  .pack-card p { min-height: auto; }
  .materials { width: min(100% - 28px, 980px); padding-block: 40px 48px; }
  .material-card { min-height: 0; padding: 24px 22px; }
  .materials__note { text-align: left; }
  .sample { gap: 26px; padding-inline: 14px; }
  .sample__visual { height: 260px; order: 2; }
  .paper { width: 90%; height: 255px; padding: 25px; }
  .paper h3 { margin-block: 18px 26px; font-size: 1.7rem; }
  .sample__copy { padding-inline: 10px; }
  .closing { margin-block: 36px; padding: 34px 26px; grid-template-columns: 1fr; gap: 24px; }
  .closing .button { grid-column: auto; }
  .footer { grid-template-columns: 1fr; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

/* Cómo funciona */
.how-page { background: var(--paper); }
.how-hero { min-height: 640px; overflow: hidden; background: var(--ink); color: white; }
.how-hero__inner { min-height: 556px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 62px; }
.how-hero__copy { max-width: 590px; }
.how-hero__copy h1 { margin-bottom: 22px; font-size: clamp(3.7rem, 5.3vw, 5.35rem); letter-spacing: -.04em; }
.how-hero__copy > p:not(.eyebrow) { max-width: 530px; margin-bottom: 0; color: rgba(255,255,255,.78); font-size: .98rem; line-height: 1.6; }
.how-map { position: relative; min-height: 430px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px; align-content: center; }
.how-map__line { position: absolute; inset: 50% 12% auto; height: 1px; background: rgba(255,255,255,.18); transform: rotate(-18deg); }
.how-map article { position: relative; min-height: 168px; padding: 23px; display: flex; flex-direction: column; justify-content: flex-end; border: 1px solid rgba(255,255,255,.16); border-radius: 16px; background: rgba(255,255,255,.065); backdrop-filter: blur(10px); }
.how-map article:nth-child(3), .how-map article:nth-child(5) { transform: translateY(18px); }
.how-map article span { position: absolute; top: 21px; left: 22px; color: var(--coral); font-size: .68rem; font-weight: 700; letter-spacing: .12em; }
.how-map article strong { margin-bottom: 7px; font-family: var(--display); font-size: 1.32rem; font-weight: 400; }
.how-map article small { color: rgba(255,255,255,.63); line-height: 1.5; }
.how-intro { padding-block: 76px; }
.how-intro__heading { max-width: 780px; margin-bottom: 40px; }
.how-intro__heading > p:last-child { max-width: 680px; color: #52645d; line-height: 1.65; }
.how-steps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: var(--line); }
.how-steps article { min-height: 210px; padding: 29px; display: grid; grid-template-columns: 48px 1fr; gap: 19px; background: var(--white); }
.how-steps article > span { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: white; font-weight: 700; }
.how-steps h3 { margin: 4px 0 13px; font-size: 1.8rem; }
.how-steps p { margin: 0; color: #596a63; line-height: 1.6; }
.how-sequence { padding-block: 86px; background: #e9eee7; }
.how-sequence__inner { display: grid; grid-template-columns: .85fr 1.15fr; gap: 90px; align-items: center; }
.how-sequence__copy > p:not(.eyebrow) { color: #4e6159; line-height: 1.65; }
.how-sequence__copy ul, .how-material ul { margin: 28px 0 0; padding: 0; display: grid; gap: 12px; list-style: none; }
.how-sequence__copy li, .how-material li { display: flex; gap: 10px; line-height: 1.45; }
.how-sequence__copy li::before, .how-material li::before { content: "✓"; color: var(--coral); font-weight: 700; }
.class-stack { min-height: 510px; position: relative; }
.class-stack article { position: absolute; left: 0; right: 0; height: 155px; padding: 26px 31px; border: 1px solid rgba(16,41,35,.13); border-radius: 14px; background: var(--white); box-shadow: 0 16px 35px rgba(16,41,35,.08); transform-origin: center; }
.class-stack article:nth-child(1) { top: 0; transform: rotate(-2deg); }
.class-stack article:nth-child(2) { top: 112px; left: 4%; transform: rotate(1.6deg); }
.class-stack article:nth-child(3) { top: 224px; right: 3%; transform: rotate(-1deg); }
.class-stack article:nth-child(4) { top: 336px; left: 2%; transform: rotate(1deg); }
.class-stack span { display: block; margin-bottom: 25px; color: var(--coral); font-size: .65rem; font-weight: 700; letter-spacing: .14em; }
.class-stack strong { font-family: var(--display); font-size: 1.6rem; font-weight: 400; }
.class-stack i { position: absolute; right: 28px; bottom: 29px; width: 75px; height: 6px; background: #e3e6df; box-shadow: 0 -14px #edf0ea; }
.how-materials { padding-block: 92px; }
.how-materials__heading > p { max-width: 430px; margin: 0 0 7px; color: #586a63; line-height: 1.6; }
.how-materials__grid { margin-top: 40px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.how-material { min-height: 430px; padding: 38px; border: 1px solid var(--line); border-radius: 20px; background: var(--white); }
.how-material--student { background: #e9eee7; }
.how-material__top { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.how-material__top > span { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: white; font-family: var(--display); font-size: 1.2rem; }
.how-material__top small { color: #66766f; font-size: .62rem; font-weight: 700; letter-spacing: .12em; }
.how-material h3 { margin: 56px 0 14px; font-size: 2.25rem; }
.how-material > p { color: #566860; line-height: 1.6; }
.how-material li { color: #40534c; font-size: .9rem; }
.how-materials__note { max-width: 780px; margin: 32px auto 0; color: var(--ink); font-family: var(--display); font-size: clamp(1.5rem, 3vw, 2.1rem); line-height: 1.25; text-align: center; }
.how-adapt { margin-bottom: 90px; padding: 56px; display: grid; grid-template-columns: 110px 1fr 1fr; gap: 48px; align-items: center; border-radius: 20px; background: #f1ded3; }
.how-adapt__badge { width: 92px; height: 92px; display: grid; place-items: center; border-radius: 50%; background: var(--coral); color: white; font-weight: 700; }
.how-adapt h2 { margin: 0; }
.how-adapt > div:last-child p { color: #4d5f58; line-height: 1.65; }
.how-practical { display: grid; grid-template-columns: .72fr 1.28fr; gap: 80px; padding-bottom: 92px; }
.how-practical__heading h2 { position: sticky; top: 30px; }
.how-practical__list { border-top: 1px solid var(--line); }
.how-practical details { border-bottom: 1px solid var(--line); }
.how-practical summary { padding: 25px 40px 25px 0; position: relative; cursor: pointer; list-style: none; font-family: var(--display); font-size: 1.45rem; }
.how-practical summary::after { content: "+"; position: absolute; right: 5px; color: var(--coral); font-family: var(--sans); }
.how-practical details[open] summary::after { content: "−"; }
.how-practical details p { max-width: 630px; margin: -4px 35px 24px 0; color: #586a63; line-height: 1.65; }
.how-closing { margin-top: 0; }

@media (max-width: 900px) {
  .how-hero__inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .how-map article { min-height: 155px; padding: 20px; }
  .how-sequence__inner { gap: 42px; }
  .how-adapt { grid-template-columns: 90px 1fr; }
  .how-adapt > div:last-child { grid-column: 2; }
}

@media (max-width: 640px) {
  .how-hero { min-height: 950px; }
  .how-hero__inner { min-height: 866px; padding-top: 38px; grid-template-columns: 1fr; align-items: start; gap: 22px; }
  .how-hero__copy h1 { font-size: clamp(3.15rem, 15vw, 4.4rem); }
  .how-map { min-height: 390px; }
  .how-map article { min-height: 138px; padding: 17px; }
  .how-map article:nth-child(3), .how-map article:nth-child(5) { transform: translateY(16px); }
  .how-map article strong { font-size: 1.25rem; }
  .how-map article small { font-size: .7rem; }
  .how-intro { padding-block: 62px; }
  .how-steps, .how-sequence__inner, .how-materials__grid, .how-practical { grid-template-columns: 1fr; }
  .how-steps article { min-height: 0; padding: 27px 23px; grid-template-columns: 44px 1fr; gap: 16px; }
  .how-steps article > span { width: 40px; height: 40px; }
  .how-sequence { padding-block: 60px; }
  .how-sequence__inner { gap: 38px; }
  .class-stack { min-height: 460px; }
  .class-stack article { height: 140px; padding: 23px; }
  .class-stack article:nth-child(2) { top: 100px; }
  .class-stack article:nth-child(3) { top: 200px; }
  .class-stack article:nth-child(4) { top: 300px; }
  .how-materials { padding-block: 62px; }
  .how-material { min-height: 0; padding: 29px 24px; }
  .how-material h3 { margin-top: 38px; }
  .how-adapt { margin-bottom: 62px; padding: 32px 24px; grid-template-columns: 1fr; gap: 24px; }
  .how-adapt > div:last-child { grid-column: auto; }
  .how-practical { gap: 25px; padding-bottom: 62px; }
}

/* Contacto */
.contact-page { min-height: 100dvh; display: flex; flex-direction: column; background: #f4f1e9; }
.contact-header { border-bottom: 1px solid var(--line); background: rgba(247,244,237,.95); }
.contact-header .nav { color: var(--ink); }
.contact-main { padding-block: 72px 82px; display: grid; grid-template-columns: .82fr 1.18fr; gap: 100px; align-items: start; flex: 1; }
.contact-intro { padding-top: 28px; }
.contact-intro h1 { margin-bottom: 20px; font-size: clamp(4rem, 7vw, 6.3rem); letter-spacing: -.05em; }
.contact-intro > p:not(.eyebrow) { max-width: 420px; color: #52645c; font-size: 1rem; line-height: 1.7; }
.contact-intro__note { max-width: 405px; margin-top: 38px; padding: 19px 20px; display: flex; gap: 13px; border-radius: 14px; background: #e6ece5; color: #506158; }
.contact-intro__note span { width: 30px; height: 30px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: white; font-weight: 700; }
.contact-intro__note p { margin: 0; font-size: .8rem; line-height: 1.55; }
.contact-form-card { padding: 43px; border: 1px solid var(--line); border-radius: 20px; background: var(--white); box-shadow: 0 20px 50px rgba(16,41,35,.07); }
.contact-form-card h2 { max-width: 520px; margin-bottom: 30px; font-size: clamp(2rem, 3.2vw, 3.1rem); }
.contact-form-card form { display: grid; gap: 20px; }
.contact-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form-card label { display: grid; gap: 8px; color: #263f36; font-size: .74rem; font-weight: 700; }
.contact-form-card input, .contact-form-card textarea { width: 100%; border: 1px solid rgba(16,41,35,.2); border-radius: 10px; outline: 0; background: #fbfaf6; color: var(--ink); font: inherit; font-weight: 400; transition: border-color .2s ease, box-shadow .2s ease; }
.contact-form-card input { height: 51px; padding: 0 14px; }
.contact-form-card textarea { min-height: 142px; padding: 14px; resize: vertical; line-height: 1.55; }
.contact-form-card input:focus, .contact-form-card textarea:focus { border-color: var(--ink); box-shadow: 0 0 0 4px rgba(16,41,35,.07); }
.contact-honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.contact-captcha { padding: 17px 18px; display: grid; grid-template-columns: 1fr 132px; gap: 20px; align-items: end; border-radius: 12px; background: #e9eee7; }
.contact-captcha div { display: grid; gap: 5px; }
.contact-captcha strong { font-size: .78rem; }
.contact-captcha span { color: #53655e; font-size: .78rem; }
.contact-captcha label { font-size: .67rem; }
.contact-captcha input { height: 42px; background: rgba(255,255,255,.75); }
.contact-form-error { min-height: 18px; margin: -8px 0 0; color: #af4636; font-size: .75rem; }
.contact-submit { width: 100%; border: 0; cursor: pointer; }
.contact-submit:disabled { opacity: .68; cursor: wait; }
.contact-privacy { margin: -8px 0 0; color: #7b8882; font-size: .69rem; text-align: center; }
.contact-status-modal { width: min(440px, calc(100% - 32px)); padding: 0; border: 0; border-radius: 20px; color: var(--ink); box-shadow: 0 30px 90px rgba(3,18,14,.34); }
.contact-status-modal::backdrop { background: rgba(6,24,19,.72); backdrop-filter: blur(7px); }
.contact-status-modal > div { padding: 48px 42px 40px; text-align: center; }
.contact-status-icon { width: 58px; height: 58px; margin: 0 auto 20px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: white; font-size: 1.45rem; font-weight: 700; }
.contact-status-modal.is-error .contact-status-icon { background: var(--coral); }
.contact-status-modal h2 { margin: 13px 0; font-size: 2.15rem; }
.contact-status-modal p:not(.eyebrow) { max-width: 320px; margin: 0 auto 26px; color: #5a6a63; line-height: 1.6; }
.contact-status-modal .button { min-width: 142px; border: 0; cursor: pointer; }

/* Mi cuenta */
.account-page { background: #f4f1e9; }
.account-header { background: var(--ink); color: white; }
.account-welcome { min-height: 280px; padding-block: 46px 52px; display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; }
.account-welcome h1 { margin-bottom: 12px; font-size: clamp(4rem, 7vw, 6rem); }
.account-welcome > div:first-child > p:last-child { margin: 0; color: rgba(255,255,255,.72); }
.account-avatar { width: 92px; height: 92px; display: grid; place-items: center; border-radius: 50%; background: var(--coral); color: white; font-family: var(--display); font-size: 2.4rem; }
.account-main { padding-block: 70px 90px; display: grid; grid-template-columns: 310px 1fr; gap: 56px; align-items: start; }
.account-sidebar { display: grid; gap: 16px; }
.account-profile, .account-help { padding: 27px; border: 1px solid var(--line); border-radius: 16px; background: var(--white); }
.account-profile > span { color: var(--coral); font-size: .64rem; font-weight: 700; letter-spacing: .13em; }
.account-profile h2 { margin: 18px 0 23px; font-size: 1.8rem; }
.account-profile dl { margin: 0; display: grid; gap: 18px; }
.account-profile dt { margin-bottom: 5px; color: #75817c; font-size: .68rem; text-transform: uppercase; letter-spacing: .08em; }
.account-profile dd { margin: 0; color: #465851; font-size: .84rem; }
.account-profile button { width: 100%; margin-top: 25px; padding: 11px; border: 1px solid var(--line); border-radius: 999px; background: #f3f1eb; color: #89938f; }
.account-help { background: #e9eee7; }
.account-help strong { font-family: var(--display); font-size: 1.25rem; font-weight: 400; }
.account-help p { margin: 10px 0 0; color: #596a63; font-size: .78rem; line-height: 1.55; }
.account-content__heading { padding-bottom: 23px; display: flex; justify-content: space-between; align-items: flex-end; border-bottom: 1px solid var(--line); }
.account-content__heading h2 { margin: 0; font-size: 2.8rem; }
.account-content__heading > span { color: #68766f; font-size: .78rem; }
.account-content__heading > span strong { color: var(--ink); font-size: 1.15rem; }
.account-empty { min-height: 430px; padding: 55px; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px dashed rgba(16,41,35,.22); border-radius: 18px; background: rgba(255,253,248,.6); text-align: center; }
.account-empty > span { width: 56px; height: 56px; margin-bottom: 24px; display: grid; place-items: center; border-radius: 50%; background: #e9eee7; font-size: 1.4rem; }
.account-empty h2 { max-width: 520px; margin-bottom: 14px; font-size: 2.35rem; }
.account-empty p { max-width: 540px; margin-bottom: 27px; color: #5b6b65; line-height: 1.6; }
.account-purchase { padding: 18px 0; display: grid; grid-template-columns: 120px 1fr auto; gap: 22px; align-items: center; border-bottom: 1px solid var(--line); }
.account-purchase img { height: 90px; object-fit: cover; border-radius: 10px; }
.account-purchase h2 { margin: 8px 0; font-size: 1.65rem; }
.account-purchase p, .account-purchase small { margin: 0; color: #6d7974; font-size: .72rem; }
.account-purchase__files { display: grid; gap: 8px; }
.account-purchase__files a { padding: 9px 13px; border: 1px solid var(--line); border-radius: 999px; font-size: .74rem; font-weight: 600; }

@media (max-width: 900px) {
  .account-main { grid-template-columns: 250px 1fr; gap: 30px; }
}

@media (max-width: 640px) {
  .account-main { grid-template-columns: 1fr; }
  .contact-main { padding-block: 50px; grid-template-columns: 1fr; gap: 32px; }
  .contact-intro { padding-top: 0; }
  .contact-intro h1 { font-size: clamp(3.5rem, 16vw, 4.6rem); }
  .contact-intro__note { margin-top: 26px; }
  .contact-form-card { padding: 29px 21px; }
  .contact-fields { grid-template-columns: 1fr; }
  .contact-captcha { grid-template-columns: 1fr 105px; gap: 12px; padding: 15px; }
  .contact-status-modal > div { padding: 40px 26px 30px; }
  .account-welcome { min-height: 250px; padding-block: 38px; }
  .account-welcome h1 { font-size: 3.8rem; }
  .account-avatar { width: 66px; height: 66px; font-size: 1.8rem; }
  .account-main { padding-block: 42px 62px; gap: 35px; }
  .account-sidebar { order: 2; }
  .account-empty { min-height: 350px; padding: 37px 23px; }
  .account-empty h2 { font-size: 1.9rem; }
  .account-purchase { grid-template-columns: 80px 1fr; }
  .account-purchase__files { grid-column: 1 / -1; grid-template-columns: repeat(2, 1fr); }
}

/* Acceso */
.auth-page { min-height: 100vh; background: var(--ink); }
.auth-shell { min-height: 100vh; display: grid; grid-template-columns: .88fr 1.12fr; }
.auth-story { min-height: 100vh; padding: 42px max(42px, calc((100vw - 1180px) / 2)); padding-right: 72px; display: flex; flex-direction: column; justify-content: space-between; background: var(--ink); color: white; }
.auth-story .brand { margin-right: 0; align-self: flex-start; }
.auth-story > div { max-width: 570px; }
.auth-story h1 { margin-bottom: 24px; font-size: clamp(3.7rem, 5.7vw, 6rem); letter-spacing: -.04em; }
.auth-story > div > p:not(.eyebrow) { max-width: 500px; color: rgba(255,255,255,.72); line-height: 1.65; }
.auth-story > small { color: rgba(255,255,255,.48); font-size: .72rem; }
.auth-panel { padding: 36px clamp(28px, 6vw, 90px); display: flex; flex-direction: column; background: var(--paper); }
.auth-back { align-self: flex-end; color: #63716b; font-size: .78rem; font-weight: 600; }
.auth-card { width: min(480px, 100%); margin: auto; }
.auth-tabs { padding: 4px; display: grid; grid-template-columns: 1fr 1fr; border-radius: 999px; background: #e9e7e0; }
.auth-tabs button { min-height: 42px; border: 0; border-radius: 999px; background: transparent; color: #64716c; cursor: pointer; }
.auth-tabs button.is-active { background: var(--white); color: var(--ink); box-shadow: 0 5px 16px rgba(16,41,35,.08); font-weight: 700; }
.auth-heading { margin: 38px 0 28px; text-align: center; }
.auth-heading h2 { margin-bottom: 12px; font-size: 2.75rem; }
.auth-heading p { max-width: 390px; margin: 0 auto; color: #63716b; font-size: .88rem; line-height: 1.55; }
.auth-social { display: grid; gap: 10px; }
.auth-social button { min-height: 50px; padding: 0 18px; display: flex; align-items: center; justify-content: center; gap: 13px; border: 1px solid var(--line); border-radius: 12px; background: var(--white); color: var(--ink); cursor: pointer; font-weight: 600; }
.auth-social button span { width: 24px; height: 24px; display: grid; place-items: center; border-radius: 50%; background: #f0eee8; font-family: Arial, sans-serif; font-weight: 700; }
.auth-social button .auth-social__label { width: auto; height: auto; display: inline; border-radius: 0; background: transparent; font-family: inherit; }
.auth-social button:last-child span { background: #1877f2; color: white; }
.auth-social button:disabled { cursor: not-allowed; opacity: .52; }
.auth-social button:not(:disabled):hover { border-color: rgba(16,41,35,.45); box-shadow: 0 5px 16px rgba(16,41,35,.07); }
.auth-status { min-height: 18px; margin: 10px 0 -8px; color: #52645c; font-size: .72rem; text-align: center; }
.auth-status.is-error { color: #a13e32; }
.auth-divider { margin: 25px 0; display: flex; align-items: center; gap: 13px; color: #8a9490; font-size: .7rem; }
.auth-divider::before, .auth-divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }
#auth-form { display: grid; gap: 16px; }
#auth-form label { display: grid; gap: 8px; color: var(--ink); font-size: .75rem; font-weight: 700; }
#auth-form label[hidden] { display: none; }
#auth-form input { width: 100%; height: 52px; padding: 0 16px; border: 1px solid rgba(16,41,35,.2); border-radius: 11px; outline: none; background: var(--white); color: var(--ink); font: inherit; font-weight: 400; }
#auth-form input:focus { border-color: var(--ink); box-shadow: 0 0 0 4px rgba(16,41,35,.07); }
.auth-forgot { margin-top: -5px; justify-self: end; color: #596a63; font-size: .72rem; text-decoration: underline; text-underline-offset: 3px; }
#auth-form .button { width: 100%; margin-top: 4px; border: 0; cursor: pointer; }
.auth-demo { margin: 18px 0 0; color: #8b9591; font-size: .68rem; text-align: center; }
.account-signout { font: inherit; cursor: pointer; }

@media (max-width: 760px) {
  .auth-shell { grid-template-columns: 1fr; }
  .auth-story { min-height: 290px; padding: 28px 24px 34px; }
  .auth-story > div { margin-top: 50px; }
  .auth-story h1 { font-size: clamp(3rem, 14vw, 4.2rem); }
  .auth-story > small { display: none; }
  .auth-panel { min-height: 650px; padding: 24px 20px 42px; }
  .auth-back { margin-bottom: 38px; }
  .auth-card { margin: 0 auto; }
}

.auth-tools { display: flex; align-items: center; justify-content: flex-end; gap: 18px; }
.auth-tools .cart { color: var(--ink); }

/* Carrito */
.cart-page { background: #f4f1e9; }
.cart-header { border-bottom: 1px solid var(--line); background: var(--paper); }
.cart-header .nav { color: var(--ink); }
.cart-return { margin-left: auto; color: #5d6c66; font-size: .78rem; font-weight: 600; }
.cart-main { padding-block: 70px 88px; }
.cart-title { padding-bottom: 34px; display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; border-bottom: 1px solid var(--line); }
.cart-title h1 { margin: 0; font-size: clamp(4rem, 7vw, 6.4rem); letter-spacing: -.04em; }
.cart-title > span { margin-bottom: 10px; color: #6b7772; font-size: .8rem; }
.cart-title > span strong { color: var(--ink); font-size: 1.2rem; }
.cart-layout { margin-top: 35px; display: grid; grid-template-columns: 1fr 390px; gap: 38px; align-items: start; }
.cart-demo-note { margin-bottom: 14px; padding: 12px 15px; display: flex; gap: 10px; border-radius: 9px; background: #e9eee7; color: #52635c; font-size: .72rem; }
.cart-demo-note strong { color: var(--ink); }
.cart-item { padding: 22px; display: grid; grid-template-columns: 190px 1fr auto; gap: 26px; align-items: center; border: 1px solid var(--line); border-radius: 17px; background: var(--white); }
.cart-item > img { height: 145px; object-fit: cover; border-radius: 11px; }
.level-static { display: inline-flex; padding: 5px 8px; border-radius: 6px; background: #e9eee7; font-size: .68rem; font-weight: 700; }
.cart-item h2 { margin: 14px 0 9px; font-size: 2rem; }
.cart-item p { margin-bottom: 15px; color: #596a63; font-size: .86rem; }
.cart-item small { color: #89928e; font-size: .68rem; }
.cart-item__price { align-self: stretch; display: flex; flex-direction: column; align-items: flex-end; justify-content: space-between; }
.cart-item__price strong { font-family: var(--display); font-size: 1.4rem; font-weight: 400; }
.cart-item__price button { padding: 0; border: 0; border-bottom: 1px solid currentColor; background: transparent; color: #a14c3f; cursor: pointer; font-size: .72rem; }
.coupon-form { margin-top: 20px; padding: 24px; border: 1px solid var(--line); border-radius: 15px; background: rgba(255,253,248,.55); }
.coupon-form > label { display: block; margin-bottom: 10px; font-size: .76rem; font-weight: 700; }
.coupon-form > div { display: grid; grid-template-columns: 1fr auto; }
.coupon-form input { height: 45px; padding: 0 14px; border: 1px solid var(--line); border-radius: 9px 0 0 9px; outline: 0; background: var(--white); font: inherit; }
.coupon-form button { padding: 0 18px; border: 0; border-radius: 0 9px 9px 0; background: var(--ink); color: white; cursor: pointer; font-weight: 600; }
.coupon-form small { display: block; min-height: 18px; padding-top: 6px; color: #697670; font-size: .68rem; }
.cart-summary { padding: 31px; border-radius: 18px; background: var(--ink); color: white; box-shadow: 0 18px 45px rgba(16,41,35,.14); }
.cart-summary dl { margin: 28px 0; display: grid; gap: 15px; }
.cart-summary dl > div { display: flex; justify-content: space-between; gap: 20px; color: rgba(255,255,255,.72); font-size: .82rem; }
.cart-summary dd { margin: 0; color: white; }
.cart-summary .cart-summary__total { margin-top: 8px; padding-top: 22px; align-items: end; border-top: 1px solid rgba(255,255,255,.18); color: white; font-weight: 700; }
.cart-summary__total dd { font-family: var(--display); font-size: 2rem; font-weight: 400; }
.cart-payment-methods { margin: -8px 0 20px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.14); }
.cart-payment-methods > span { display: block; margin-bottom: 10px; color: rgba(255,255,255,.55); font-size: .63rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.cart-payment-methods > div { display: flex; align-items: center; gap: 9px; }
.payment-logo { display: inline-flex; min-width: 66px; min-height: 31px; align-items: center; justify-content: center; padding: 4px 9px; border-radius: 7px; font-size: .7rem; font-weight: 700; line-height: .78; text-align: center; }
.payment-logo--mercado { background: #00b1ea; color: #fff; letter-spacing: -.04em; }
.payment-logo--stripe { background: #635bff; color: #fff; font-size: .94rem; letter-spacing: -.06em; }
.cart-summary .button { width: 100%; }
.cart-summary .button.is-disabled { opacity: .4; pointer-events: none; }
.cart-summary__secure { margin: 16px 0 24px; color: rgba(255,255,255,.54); font-size: .68rem; line-height: 1.5; text-align: center; }
.cart-summary ul { margin: 0; padding: 22px 0 0; display: grid; gap: 10px; border-top: 1px solid rgba(255,255,255,.16); list-style: none; color: rgba(255,255,255,.72); font-size: .75rem; }
.cart-summary li::before { content: "✓"; margin-right: 9px; color: var(--coral); }
.cart-empty { min-height: 360px; padding: 45px; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px dashed var(--line); border-radius: 17px; background: var(--white); text-align: center; }
.cart-empty > span { width: 48px; height: 48px; margin-bottom: 20px; display: grid; place-items: center; border-radius: 50%; background: #e9eee7; }
.cart-empty h2 { margin-bottom: 12px; font-size: 2rem; }
.cart-empty p { color: #607069; }

@media (max-width: 900px) {
  .nav-actions .cart { display: grid; }
  .cart-layout { grid-template-columns: 1fr 330px; gap: 24px; }
  .cart-item { grid-template-columns: 130px 1fr; }
  .cart-item > img { height: 110px; }
  .cart-item__price { grid-column: 2; flex-direction: row; }
}

@media (max-width: 700px) {
  .cart-header .button { display: none; }
  .cart-return { font-size: .7rem; }
  .cart-main { padding-block: 48px 62px; }
  .cart-title { align-items: flex-start; }
  .cart-title h1 { font-size: 3.7rem; }
  .cart-layout { grid-template-columns: 1fr; }
  .cart-demo-note { flex-direction: column; }
  .cart-item { padding: 16px; grid-template-columns: 95px 1fr; gap: 17px; }
  .cart-item > img { height: 95px; }
  .cart-item h2 { font-size: 1.5rem; }
  .cart-item p, .cart-item small { display: none; }
  .cart-item__price { grid-column: 1 / -1; padding-top: 14px; border-top: 1px solid var(--line); }
  .cart-summary { padding: 26px 22px; }
}

/* Detalle de pack */
.pack-detail-page { background: var(--paper); }
.pack-detail-hero { min-height: 620px; overflow: hidden; background: var(--ink); color: white; }
.pack-detail-hero__inner { min-height: 536px; display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 58px; }
.pack-detail-hero__copy { max-width: 570px; }
.pack-detail-hero__copy h1 { margin-bottom: 17px; font-size: clamp(3.55rem, 5.7vw, 5.45rem); letter-spacing: -.055em; }
.pack-detail-hero__lead { margin-bottom: 14px !important; color: white !important; font-family: var(--display); font-size: 1.18rem !important; font-style: italic; line-height: 1.25 !important; }
.pack-detail-hero__copy > p:not(.eyebrow) { max-width: 485px; margin-bottom: 0; color: rgba(255,255,255,.76); font-size: .94rem; line-height: 1.58; }
.pack-detail-hero__image { position: relative; height: 405px; }
.pack-detail-hero__image > img { position: absolute; top: 0; right: 0; width: 84%; height: 366px; object-fit: cover; border-radius: 16px; box-shadow: 0 28px 60px rgba(0,0,0,.25); }
.pack-detail-hero__image > span { position: absolute; top: 18px; right: 18px; padding: 7px 10px; border-radius: 7px; background: var(--white); color: var(--ink); font-size: .68rem; font-weight: 700; }
.pack-detail-hero__sheet { position: absolute; left: 0; bottom: 0; width: 58%; min-height: 172px; padding: 20px; border: 1px solid rgba(255,255,255,.14); border-radius: 12px; background: rgba(20,50,43,.95); box-shadow: 0 22px 44px rgba(0,0,0,.22); }
.pack-detail-hero__sheet small { display: block; margin-bottom: 16px; color: var(--coral); font-size: .6rem; font-weight: 700; letter-spacing: .13em; }
.pack-detail-hero__sheet strong { display: block; margin-bottom: 18px; font-family: var(--display); font-size: 1.3rem; font-weight: 400; line-height: 1.1; }
.pack-detail-hero__sheet i { display: block; width: 78%; height: 5px; margin-top: 9px; background: rgba(255,255,255,.25); }
.pack-detail-hero__sheet i:last-child { width: 52%; }
.pack-intro { padding-block: 64px 54px; display: grid; grid-template-columns: 1.15fr .85fr; gap: 74px; align-items: end; }
.pack-intro h2 { margin: 0; }
.pack-intro > p { margin: 0; color: #506159; line-height: 1.7; }
.pack-lessons { padding-bottom: 64px; }
.pack-lessons__heading { max-width: 500px; margin-bottom: 28px; }
.pack-lessons__heading h2 { margin-bottom: 0; }
.lesson-card { min-height: 278px; padding: 34px; display: grid; grid-template-columns: 62px minmax(0, 1fr); gap: 26px; border-top: 1px solid var(--line); background: var(--white); }
.lesson-card:last-child { border-bottom: 1px solid var(--line); }
.lesson-card--warm { background: #f4ded3; }
.lesson-card--ink { background: var(--ink); color: white; }
.lesson-card--sage { background: #e9eee7; }
.lesson-card__number { color: var(--coral); font-size: .75rem; font-weight: 700; letter-spacing: .14em; }
.lesson-card__body h3 { margin-bottom: 9px; font-size: clamp(2rem, 3.3vw, 3.25rem); line-height: 1.04; }
.lesson-card__subtitle { max-width: 670px; margin: 0 0 20px; color: #65756e; font-family: var(--display); font-size: clamp(1.03rem, 1.7vw, 1.32rem); font-style: italic; line-height: 1.28; }
.lesson-card__body > p:not(.lesson-card__subtitle) { max-width: 670px; margin: 0; color: #56685f; font-size: .91rem; line-height: 1.62; }
.lesson-card--ink .lesson-card__subtitle { color: rgba(255,255,255,.78); }
.lesson-card--ink .lesson-card__body > p:not(.lesson-card__subtitle) { color: rgba(255,255,255,.72); }
.pack-buy { margin-block: 64px; padding: 44px; display: grid; grid-template-columns: 1fr .85fr; gap: 65px; align-items: center; border-radius: 20px; background: #e9eee7; }
.pack-buy h2 { margin-bottom: 17px; }
.pack-buy > div > p:last-child { max-width: 410px; margin: 0; color: #53655e; line-height: 1.6; }
.pack-buy__card { padding: 29px; border-radius: 16px; background: var(--white); box-shadow: 0 14px 32px rgba(16,41,35,.08); }
.pack-buy__card > span { color: var(--coral); font-size: .64rem; font-weight: 700; letter-spacing: .12em; }
.pack-buy__card ul { margin: 24px 0; padding: 0; display: grid; gap: 10px; list-style: none; color: #51635b; font-size: .83rem; }
.pack-buy__card li::before { content: "✓"; margin-right: 9px; color: var(--ink); font-weight: 700; }
.pack-buy__card .button { width: 100%; }
.pack-buy__card small { display: block; margin-top: 13px; color: #89938e; font-size: .66rem; text-align: center; }

@media (max-width: 900px) {
  .pack-detail-hero__inner { grid-template-columns: 1fr 1fr; gap: 35px; }
  .lesson-card { grid-template-columns: 55px 1fr; }
  .pack-intro, .pack-buy { gap: 40px; }
}

@media (max-width: 640px) {
  .pack-detail-hero { min-height: 860px; }
  .pack-detail-hero__inner { min-height: 776px; padding-top: 42px; grid-template-columns: 1fr; align-items: start; gap: 26px; }
  .pack-detail-hero__copy h1 { font-size: clamp(3.25rem, 15vw, 4.45rem); }
  .pack-detail-hero__image { height: 320px; }
  .pack-detail-hero__image > img { width: 87%; height: 275px; }
  .pack-detail-hero__sheet { width: 69%; min-height: 156px; padding: 18px; }
  .pack-detail-hero__sheet small { margin-bottom: 14px; }
  .pack-detail-hero__sheet strong { margin-bottom: 15px; font-size: 1.2rem; }
  .pack-intro, .pack-buy { padding-block: 48px; grid-template-columns: 1fr; gap: 24px; }
  .pack-intro { padding-bottom: 42px; }
  .pack-lessons { padding-bottom: 46px; }
  .lesson-card { min-height: 0; padding: 28px 23px; grid-template-columns: 1fr; gap: 14px; }
  .lesson-card__body h3 { font-size: 2rem; }
  .lesson-card__subtitle { margin-bottom: 16px; font-size: 1.07rem; }
  .pack-buy { margin-block: 46px; padding: 30px 23px; }
}

/* Catálogo */
.catalog-page { background: #f4f1e9; }
.catalog-header { border-bottom: 1px solid var(--line); background: rgba(247, 244, 237, .94); }
.catalog-header .nav { color: var(--ink); }
.menu-button--dark { color: var(--ink); }
.button--outline-dark { border-color: var(--ink); color: var(--ink); }
.catalog-intro { padding-block: 92px 78px; text-align: center; }
.catalog-intro h1 { margin-bottom: 24px; font-size: clamp(4rem, 8vw, 7.2rem); letter-spacing: -.045em; }
.catalog-intro > p:last-child { max-width: 680px; margin: 0 auto; color: #50615a; font-size: 1.05rem; line-height: 1.6; }
.catalog { padding-bottom: 80px; }
.catalog-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 25px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.catalog-toolbar h2 { margin: 0; font-size: 2rem; }
.filter-chips { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.filter-chip { padding: 9px 16px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--ink); cursor: pointer; }
.filter-chip:hover, .filter-chip.is-active { border-color: var(--ink); background: var(--ink); color: white; }
.pack-grid--catalog { margin-top: 28px; row-gap: 22px; }
.catalog-empty { padding: 55px 0; text-align: center; color: #65716c; }
.catalog-cta { margin-bottom: 70px; padding: 48px 54px; display: grid; grid-template-columns: 1.25fr .75fr; align-items: end; gap: 50px; border-radius: var(--radius); background: var(--ink); color: white; }
.catalog-cta h2 { margin: 0; }
.catalog-cta > p { margin: 0; color: rgba(255,255,255,.78); line-height: 1.6; }

@media (max-width: 900px) {
  .nav-menu--light { color: white; }
  .catalog-nav-actions .button--outline-dark { display: none; }
  .catalog-intro { padding-block: 70px 60px; }
  .catalog-cta { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .catalog-nav-actions .button { min-height: 40px; padding-inline: 15px; font-size: .76rem; }
  .catalog-intro { padding-block: 58px 48px; }
  .catalog-intro h1 { font-size: clamp(3.6rem, 19vw, 5rem); }
  .catalog-toolbar { align-items: flex-start; flex-direction: column; }
  .filter-chips { justify-content: flex-start; }
  .catalog-cta { margin-bottom: 40px; padding: 34px 26px; gap: 24px; }
}

/* Clase gratuita */
.free-page { background: var(--paper); }
.free-hero { min-height: 720px; color: white; background: var(--ink); overflow: hidden; }
.free-hero__content { min-height: 636px; display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 80px; }
.free-hero__copy { max-width: 580px; }
.free-hero__copy h1 { margin-bottom: 24px; font-size: clamp(4rem, 7vw, 6.7rem); letter-spacing: -.045em; }
.free-hero__copy > p:not(.eyebrow) { margin-bottom: 28px; color: rgba(255,255,255,.82); font-size: 1.04rem; line-height: 1.6; }
.free-hero__copy small, .free-download small { display: block; margin-top: 14px; color: rgba(255,255,255,.58); font-size: .74rem; }
.free-hero__mockup { position: relative; min-height: 510px; }
.free-sheet { position: absolute; width: min(440px, 88%); height: 525px; padding: 42px; border-radius: 7px; background: var(--white); color: var(--ink); box-shadow: 0 28px 70px rgba(0,0,0,.25); }
.free-sheet--back { top: 34px; left: 15%; transform: rotate(8deg); background: #e8d8cb; }
.free-sheet--front { top: 0; left: 5%; transform: rotate(-4deg); }
.free-sheet > span { font-size: .65rem; font-weight: 700; letter-spacing: .13em; }
.free-sheet h2 { margin: 24px 0 22px; font-size: 2.55rem; }
.free-sheet img { height: 165px; object-fit: cover; border-radius: 3px; }
.free-sheet__lines { margin-top: 24px; }
.free-sheet__lines i { display: block; width: 83%; height: 7px; margin-top: 11px; background: #e7e3db; }
.free-sheet__lines i:last-child { width: 55%; }
.free-includes { padding-block: 80px; }
.free-includes__heading { max-width: 800px; margin: 0 auto 42px; text-align: center; }
.free-includes__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.free-include { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.free-include span { color: var(--coral); font-size: .72rem; font-weight: 700; letter-spacing: .12em; }
.free-include h3 { margin: 48px 0 10px; font-size: 1.75rem; }
.free-include p { margin: 0; color: #5b6b65; font-size: .9rem; line-height: 1.55; }
.free-flow { padding-block: 76px; background: var(--ink); color: white; }
.free-flow__inner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; }
.free-flow h2 { margin: 0; }
.free-flow__steps { display: grid; gap: 0; }
.free-flow__steps > div { padding: 20px 0; display: grid; grid-template-columns: 42px 1fr; gap: 18px; align-items: start; border-bottom: 1px solid rgba(255,255,255,.18); }
.free-flow__steps strong { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--coral); font-size: .8rem; }
.free-flow__steps p { margin: 5px 0 0; color: rgba(255,255,255,.82); }
.free-download { margin-block: 70px; padding: 52px; display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; border-radius: var(--radius); background: #f1ded3; }
.free-download h2, .free-download p { margin-bottom: 0; }
.free-download__copy > p { margin-bottom: 24px; color: #42554e; line-height: 1.6; }
.free-download small { color: #6d756f; }

.free-method { padding-block: 84px; display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; align-items: start; }
.free-method .free-includes__heading { max-width: none; margin: 0; text-align: left; }
.free-method__copy { max-width: 700px; }
.free-method__copy p { margin: 0 0 22px; color: #42554e; font-size: 1.05rem; line-height: 1.72; }
.free-method__copy p:first-child { color: var(--ink); font-family: var(--serif); font-size: 1.55rem; line-height: 1.42; }

/* Clase gratuita: recorrido editorial, en sintonía con las páginas de packs. */
.free-hero { min-height: 0; }
.free-hero__content { min-height: 580px; grid-template-columns: 1fr 1fr; gap: 52px; padding-block: 34px 48px; }
.free-hero__copy { max-width: 590px; }
.free-hero__copy h1 { font-size: clamp(3.8rem, 6.5vw, 6.4rem); line-height: .94; }
.free-hero__copy .free-hero__lead { max-width: 500px; margin-bottom: 13px; color: white; font-family: var(--display); font-size: clamp(1.35rem, 2.2vw, 1.85rem); line-height: 1.15; }
.free-hero__copy > p:not(.eyebrow):not(.free-hero__lead) { max-width: 530px; }
.free-hero__art { position: relative; height: 480px; }
.free-art__photo { position: absolute; inset: 18px 0 28px 8%; overflow: hidden; border-radius: 5px; transform: rotate(2deg); background: #c0b5aa; }
.free-art__photo img { height: 100%; object-fit: cover; filter: saturate(.68) brightness(.76); }
.free-art__phone { position: absolute; top: 12%; right: 7%; width: 210px; height: 345px; padding: 34px 14px 16px; border: 8px solid #19211f; border-radius: 30px; background: #e9eee7; color: var(--ink); box-shadow: 0 26px 45px rgba(0,0,0,.35); transform: rotate(8deg); }
.free-art__time { font-size: 2.3rem; font-weight: 700; letter-spacing: -.08em; text-align: center; }
.free-art__feed { display: grid; gap: 9px; margin-top: 28px; }
.free-art__feed span { display: block; padding: 13px 10px; border-radius: 10px; background: #cddbd1; font-size: .68rem; font-weight: 700; }
.free-art__feed span:nth-child(2) { background: #f4d6ca; }
.free-art__feed span:nth-child(3) { background: #d7d5e2; }
.free-art__bar { width: 56px; height: 4px; margin: 25px auto 0; border-radius: 9px; background: #8d9b93; }
.free-art__note { position: absolute; bottom: 14px; left: 0; width: 230px; padding: 23px; background: var(--coral); color: white; font-family: var(--display); font-size: 1.4rem; line-height: 1.07; transform: rotate(-5deg); box-shadow: 0 15px 36px rgba(0,0,0,.22); }
.free-art__note span { display: block; margin-top: 17px; font-family: var(--sans); font-size: .7rem; font-weight: 700; }
.free-art__tag { position: absolute; top: 4px; left: 0; padding: 9px 12px; background: var(--white); color: var(--ink); font-size: .62rem; font-weight: 700; letter-spacing: .13em; transform: rotate(-5deg); }
.free-hero__bottom { display: flex; justify-content: space-between; gap: 20px; padding-block: 18px 25px; border-top: 1px solid rgba(255,255,255,.2); color: rgba(255,255,255,.74); font-size: .8rem; }
.free-hero__bottom a { color: white; font-weight: 700; }
.free-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; padding-block: 100px; }
.free-intro h2 { max-width: 550px; margin: 0; }
.free-intro > p { max-width: 520px; margin: 0; color: #455c53; font-size: 1.1rem; line-height: 1.7; }
.free-journey { padding-bottom: 105px; }
.free-journey__heading { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 80px; margin-bottom: 34px; }
.free-journey__heading .eyebrow { grid-column: 1 / -1; margin: 0; }
.free-journey__heading h2 { margin: 0; }
.free-journey__heading > p:last-child { align-self: end; max-width: 450px; margin: 0 0 5px; color: #52665e; line-height: 1.6; }
.free-journey__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.free-lesson { min-height: 285px; padding: 35px 39px; display: flex; flex-direction: column; border-radius: var(--radius); background: #e9eee7; }
.free-lesson > span, .free-materials__grid article > span { font-size: .67rem; font-weight: 700; letter-spacing: .14em; }
.free-lesson h3 { margin: 33px 0 12px; font-size: clamp(1.9rem, 3.1vw, 2.75rem); }
.free-lesson p { max-width: 520px; margin: 0 0 23px; line-height: 1.58; }
.free-lesson small { margin-top: auto; padding-top: 15px; border-top: 1px solid currentColor; font-size: .76rem; font-weight: 600; line-height: 1.5; }
.free-lesson--cream { background: #eae5d9; }
.free-lesson--coral { background: #f1d7cc; }
.free-lesson--sage { background: #cfdfd1; }
.free-lesson--ink { background: var(--ink); color: white; }
.free-lesson--warm { background: #f3e2b7; }
.free-lesson--pale { background: #dbe2e9; }
.free-method { display: block; padding-block: 95px; background: var(--ink); color: white; }
.free-method__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.free-method h2 { max-width: 540px; margin: 0; }
.free-method__inner > div:last-child { align-self: center; }
.free-method__inner > div:last-child p { max-width: 520px; margin: 0 0 22px; color: rgba(255,255,255,.83); font-size: 1.02rem; line-height: 1.7; }
.free-materials { padding-block: 100px 45px; }
.free-materials__heading { max-width: 750px; margin-bottom: 32px; }
.free-materials__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.free-materials__grid article { min-height: 245px; padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.free-materials__grid h3 { margin: 43px 0 13px; font-size: 2.3rem; }
.free-materials__grid p { max-width: 475px; margin: 0; color: #53665d; line-height: 1.58; }
.free-materials__note { margin: 19px 0 0; color: #53665d; font-size: .85rem; }
@media (max-width: 900px) {
  .free-hero__content { gap: 28px; }
  .free-art__phone { right: 2%; width: 170px; height: 305px; }
  .free-intro, .free-method__inner { gap: 36px; }
}
@media (max-width: 640px) {
  .free-hero { min-height: 0; }
  .free-hero__content { min-height: 0; padding-block: 54px 12px; grid-template-columns: 1fr; gap: 25px; }
  .free-hero__copy h1 { font-size: clamp(3.2rem, 14vw, 5rem); }
  .free-hero__art { height: 360px; }
  .free-art__photo { inset: 12px 0 20px 3%; }
  .free-art__phone { top: 9%; right: 6%; width: 145px; height: 260px; padding-top: 27px; }
  .free-art__time { font-size: 1.8rem; }
  .free-art__feed { margin-top: 15px; gap: 6px; }
  .free-art__feed span { padding: 9px; font-size: .58rem; }
  .free-art__note { left: 0; width: 180px; padding: 17px; font-size: 1.08rem; }
  .free-hero__bottom { flex-direction: column; gap: 8px; }
  .free-intro, .free-journey__heading, .free-journey__grid, .free-method__inner, .free-materials__grid { grid-template-columns: 1fr; }
  .free-intro { padding-block: 64px; gap: 20px; }
  .free-journey { padding-bottom: 65px; }
  .free-journey__heading { gap: 16px; }
  .free-journey__heading .eyebrow { grid-column: auto; }
  .free-lesson { min-height: 0; padding: 28px; }
  .free-lesson h3 { margin-top: 28px; }
  .free-method { padding-block: 70px; }
  .free-materials { padding-block: 66px 16px; }
}

/* Formulario de descarga */
.download-modal { width: min(930px, calc(100% - 32px)); max-height: calc(100dvh - 32px); padding: 0; overflow: visible; border: 0; border-radius: 24px; background: transparent; color: var(--ink); box-shadow: 0 30px 90px rgba(3, 18, 14, .34); }
.download-modal[open] { animation: modal-in .24s ease-out; }
.download-modal::backdrop { background: rgba(6, 24, 19, .74); backdrop-filter: blur(8px); animation: backdrop-in .2s ease-out; }
.download-modal__panel { position: relative; min-height: 540px; display: grid; grid-template-columns: .82fr 1.18fr; overflow: hidden; border-radius: 24px; background: var(--white); }
.download-modal__close { position: absolute; z-index: 2; top: 18px; right: 18px; width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: rgba(255, 253, 248, .9); color: var(--ink); cursor: pointer; font-size: 1.65rem; line-height: 1; transition: transform .2s ease, background .2s ease; }
.download-modal__close:hover { transform: rotate(5deg); background: white; }
.download-modal__intro { position: relative; padding: 58px 42px 46px; overflow: hidden; background: #e9eee7; }
.download-modal__intro::after { content: ""; position: absolute; right: -70px; bottom: -100px; width: 270px; height: 270px; border-radius: 50%; background: rgba(255, 112, 87, .18); }
.download-modal__mark { margin-bottom: 72px; display: inline-flex; align-items: center; color: var(--ink); font-family: var(--sans); font-size: 1.55rem; font-weight: 700; letter-spacing: -.04em; }
.download-modal__mark i { width: 9px; height: 9px; margin: 4px 0 0 3px; border-radius: 50%; background: var(--coral); }
.download-modal__intro h2 { margin-bottom: 20px; font-size: clamp(2.7rem, 5vw, 4.2rem); letter-spacing: -.03em; }
.download-modal__intro > p:last-child { position: relative; z-index: 1; margin: 0; color: #51635c; font-size: .94rem; line-height: 1.6; }
.download-form { padding: 94px 62px 52px; align-self: center; }
.form-field label { display: block; margin-bottom: 9px; font-size: .79rem; font-weight: 700; }
.form-field input { width: 100%; height: 58px; padding: 0 18px; border: 1px solid rgba(16, 41, 35, .24); border-radius: 12px; outline: none; background: #fbfaf6; color: var(--ink); font: inherit; transition: border-color .2s ease, box-shadow .2s ease; }
.form-field input:focus { border-color: var(--ink); box-shadow: 0 0 0 4px rgba(16, 41, 35, .08); }
.form-field input::placeholder { color: #8b9691; }
.form-consent { margin-top: 24px; display: grid; grid-template-columns: 22px 1fr; gap: 12px; align-items: start; color: #4f615a; cursor: pointer; font-size: .78rem; line-height: 1.55; }
.form-consent input { width: 20px; height: 20px; margin: 1px 0 0; accent-color: var(--ink); }
.form-consent a { color: var(--ink); font-weight: 700; text-decoration: underline; text-underline-offset: 2px; }
.form-consent--optional { margin-top: 8px; padding-top: 17px; border-top: 1px solid var(--line); }
.form-consent strong { margin-left: 5px; padding: 3px 7px; border-radius: 999px; background: #e9eee7; color: var(--ink); font-size: .64rem; text-transform: uppercase; letter-spacing: .06em; }
.form-error { min-height: 20px; display: block; padding-top: 5px; color: #b44332; font-size: .72rem; }
.download-form__submit { width: 100%; min-height: 54px; margin-top: 12px; border: 0; cursor: pointer; }
.download-form__note { margin: 13px 0 0; color: #7b8882; font-size: .72rem; text-align: center; }
.download-success { align-self: center; padding: 64px; text-align: center; }
.download-success > span { width: 60px; height: 60px; margin: 0 auto 24px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: white; font-size: 1.5rem; }
.download-success h2 { margin-bottom: 16px; }
.download-success p { max-width: 460px; margin: 0 auto 26px; color: #566760; line-height: 1.6; }
.download-success .button { border: 0; cursor: pointer; }

@keyframes modal-in { from { opacity: 0; transform: translateY(14px) scale(.985); } }
@keyframes backdrop-in { from { opacity: 0; } }

@media (max-width: 900px) {
  .free-hero__content { gap: 30px; }
}

@media (max-width: 640px) {
  .free-download { grid-template-columns: 1fr; }
  .free-download { margin-block: 40px; padding: 32px 24px; gap: 26px; }
  .download-modal { width: min(100% - 20px, 540px); max-height: calc(100dvh - 20px); overflow-y: auto; }
  .download-modal__panel { min-height: 0; grid-template-columns: 1fr; border-radius: 20px; }
  .download-modal__intro { padding: 34px 26px 28px; }
  .download-modal__mark { margin-bottom: 28px; font-size: 1.4rem; }
  .download-modal__intro h2 { margin-bottom: 12px; font-size: 2.55rem; }
  .download-modal__intro > p:last-child { padding-right: 18px; font-size: .84rem; }
  .download-modal__close { top: 12px; right: 12px; width: 38px; height: 38px; }
  .download-form { padding: 28px 26px 30px; }
  .form-consent { margin-top: 18px; }
  .download-success { padding: 52px 28px 36px; }
}