/* ================================================
   TRUCOS PARA EL TRUCO — Estilos globales
   Paleta: oscuro cálido / crema / ámbar / verde
   ================================================ */

/* === VARIABLES === */
:root {
  --orange:      #e8920a;
  --gold:        #d4831a;
  --gold-light:  #f0a830;
  --olive:       #25d366;
  --olive-dark:  #1dab52;
  --brown:       #1a0800;
  --deep:        #0f0500;
  --cream:       #fdf5e6;
  --parchment:   #e0cfa0;
  --text-dark:   #1a0800;
  --text-muted:  rgba(253, 245, 230, 0.6);

  --f-title:  'Cinzel', serif;
  --f-serif:  'Playfair Display', Georgia, serif;
  --f-body:   'Inter', sans-serif;

  --container: 1100px;
  --gap: clamp(40px, 6vw, 80px);
}

/* === RESET === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
img { display: block; max-width: 100%; }
a { color: inherit; }
ul { list-style: none; }

/* === BASE === */
body {
  font-family: var(--f-body);
  background: var(--deep);
  color: var(--cream);
  line-height: 1.7;
  overflow-x: hidden;
}


.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 48px);
}

/* === TIPOGRAFÍA COMPARTIDA === */
.section-title {
  font-family: var(--f-title);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  text-align: center;
  color: var(--gold);
  margin-bottom: 1.5rem;
  letter-spacing: 1px;
}
.section-title em { font-style: normal; color: var(--gold-light); }
.section-title--left { text-align: left; }
.section-title--light { color: #ffffff; }
.section-title--light em { color: var(--gold); }

/* === BOTONES === */
.btn {
  display: inline-block;
  font-family: var(--f-title);
  font-weight: 700;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  border-radius: 3px;
}

.btn--primary {
  background: linear-gradient(135deg, #25d366 0%, #1dab52 100%);
  color: #fff;
  padding: 18px 40px;
  font-size: 1.05rem;
  border-radius: 50px;
  border: none;
  box-shadow: 0 4px 24px rgba(37, 211, 102, 0.4);
  font-weight: 700;
}
.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 36px rgba(37, 211, 102, 0.6);
}

.btn--nav {
  background: var(--gold);
  color: #0f0500;
  padding: 10px 22px;
  font-size: 0.78rem;
  letter-spacing: 1px;
  border-radius: 50px;
  font-weight: 700;
}
.btn--nav:hover { background: var(--gold-light); transform: translateY(-1px); }

.btn--buy {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: fit-content;
  margin: 0 auto;
  background: linear-gradient(135deg, var(--olive) 0%, var(--olive-dark) 100%);
  color: #fff;
  padding: 20px 48px;
  font-size: 1.15rem;
  border: 2px solid var(--gold);
  box-shadow: 0 4px 28px rgba(138, 180, 39, 0.4);
  letter-spacing: 1.5px;
}
.btn--buy:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(138, 180, 39, 0.6);
}
.btn--whatsapp {
  background: linear-gradient(135deg, #25d366 0%, #128c4a 100%);
  border-color: rgba(255,255,255,0.25);
  box-shadow: 0 4px 28px rgba(37, 211, 102, 0.35);
}
.btn--whatsapp:hover {
  box-shadow: 0 10px 40px rgba(37, 211, 102, 0.55);
}
.btn__wa-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

/* === DIVISOR ORNAMENTAL === */
.ornate-divider {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 10px 40px;
  background: var(--brown);
}
.ornate-divider__line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
}
.ornate-divider__ornament {
  color: var(--gold);
  font-size: 1rem;
  letter-spacing: 6px;
  white-space: nowrap;
}

/* ================================================
   SECCIONES
   ================================================ */

/* === NAV === */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px clamp(20px, 5vw, 48px);
  background: rgba(10, 3, 0, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(232, 146, 10, 0.2);
  transition: box-shadow 0.3s;
}
.nav--scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.7); }

.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.nav__logo {
  height: 44px;
  width: auto;
  object-fit: contain;
  mix-blend-mode: screen;
}
.nav__title {
  font-family: var(--f-title);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.5px;
}

/* === HERO === */
.hero {
  position: relative;
  padding: clamp(60px, 8vw, 100px) clamp(20px, 5vw, 60px);
  background:
    radial-gradient(ellipse at 60% 50%, rgba(90, 30, 0, 0.8) 0%, transparent 65%),
    radial-gradient(ellipse at 30% 70%, rgba(60, 15, 0, 0.5) 0%, transparent 50%),
    linear-gradient(160deg, #0f0500 0%, #1e0800 50%, #0f0500 100%);
  border-bottom: 2px solid rgba(232, 146, 10, 0.25);
  overflow: hidden;
}

.hero__content {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}

.hero__kicker {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 5px;
  color: var(--gold);
  margin-bottom: 18px;
  font-weight: 600;
}

.hero__title {
  font-family: var(--f-title);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  color: #ffffff;
  margin-bottom: 28px;
  letter-spacing: 1px;
}
.hero__title em {
  display: block;
  font-style: normal;
  color: var(--gold);
}

.hero__subtitle {
  font-family: var(--f-body);
  font-size: clamp(1rem, 2vw, 1.1rem);
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
  max-width: 500px;
  line-height: 1.75;
  font-weight: 400;
}

.hero__social {
  display: flex;
  width: fit-content;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.hero__social:hover { color: var(--gold); }
.hero__social strong { color: var(--gold); }
.hero__ig-icon { width: 16px; height: 16px; color: var(--gold); flex-shrink: 0; }

.hero__book {
  display: flex;
  justify-content: center;
}
.hero__book-img {
  width: 100%;
  max-width: 420px;
  filter: drop-shadow(0 24px 64px rgba(0,0,0,0.5));
  animation: float 5s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-14px); }
}

/* === HOOK === */
.hook {
  background: #160600;
  padding: var(--gap) 24px;
  text-align: center;
}
.hook__text {
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.85;
}

/* === ANTES / DESPUÉS === */
.transformation {
  background: var(--deep);
  padding: var(--gap) clamp(20px, 5vw, 48px);
  border-top: 1px solid rgba(180, 151, 39, 0.18);
  border-bottom: 1px solid rgba(180, 151, 39, 0.18);
}

.transformation__grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: clamp(20px, 4vw, 48px);
  align-items: start;
  margin-top: 48px;
}

.transformation__col {
  padding: 32px 28px;
  border-radius: 2px;
}
.transformation__col--before {
  background: rgba(180, 82, 39, 0.07);
  border: 1px solid rgba(180, 82, 39, 0.28);
}
.transformation__col--after {
  background: rgba(138, 180, 39, 0.07);
  border: 1px solid rgba(138, 180, 39, 0.28);
}

.transformation__label {
  font-family: var(--f-title);
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: 4px;
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid currentColor;
}
.transformation__label--before { color: var(--orange); }
.transformation__label--after  { color: var(--olive); }

.transformation__list li {
  padding: 8px 0 8px 24px;
  position: relative;
  font-size: 0.98rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.transformation__list li:last-child { border-bottom: none; }

.transformation__list--before li { color: var(--text-muted); }
.transformation__list--before li::before {
  content: '✗';
  position: absolute;
  left: 0;
  color: var(--orange);
  font-weight: bold;
}

.transformation__list--after li { color: var(--cream); }
.transformation__list--after li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--olive);
  font-weight: bold;
}

.transformation__arrow {
  font-size: 2.5rem;
  color: var(--gold);
  display: flex;
  align-items: center;
  padding-top: 72px;
  opacity: 0.7;
}

/* === APRENDE === */
.learn {
  background: var(--deep);
  padding: var(--gap) clamp(20px, 5vw, 48px);
  border-bottom: 1px solid rgba(180, 151, 39, 0.18);
  border-top: 1px solid rgba(180, 151, 39, 0.18);
}
.learn__media {
  display: block;
  width: 100%;
  max-width: 1100px;
  height: auto;
  margin: 0 auto;
  border-radius: 8px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.55);
  background: var(--deep);
}

/* === OPORTUNIDAD === */
.opportunity {
  background: #160600;
  padding: var(--gap) clamp(20px, 5vw, 48px);
}
.opportunity__inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.opportunity__eyebrow {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: var(--gold);
  margin-bottom: 16px;
}
.opportunity__title {
  font-family: var(--f-title);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  color: var(--cream);
  line-height: 1.2;
  margin-bottom: 24px;
}
.opportunity__title em {
  font-style: italic;
  color: var(--gold-light);
}
.opportunity__divider {
  color: var(--gold);
  font-size: 1.1rem;
  letter-spacing: 8px;
  margin-bottom: 40px;
}
.opportunity__cols {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  margin-bottom: 48px;
}
.opportunity__col {
  padding: 28px;
  border-radius: 2px;
}
.opportunity__col--before {
  border: 1px solid rgba(180, 82, 39, 0.3);
  background: rgba(180, 82, 39, 0.06);
}
.opportunity__col--after {
  border: 1px solid rgba(138, 180, 39, 0.3);
  background: rgba(138, 180, 39, 0.06);
}
.opportunity__col-label {
  font-family: var(--f-title);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 4px;
  margin-bottom: 12px;
  font-weight: 700;
}
.opportunity__col--before .opportunity__col-label { color: var(--orange); }
.opportunity__col--after  .opportunity__col-label { color: var(--olive); }
.opportunity__col p { font-size: 0.97rem; color: var(--text-muted); line-height: 1.7; }
.opportunity__sep {
  font-size: 2rem;
  color: rgba(180, 151, 39, 0.4);
}
.opportunity__guarantee {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 28px 32px;
  border: 1px solid rgba(180, 151, 39, 0.35);
  background: rgba(180, 151, 39, 0.05);
}
.opportunity__guarantee p {
  font-size: 1.05rem;
  color: var(--cream);
  line-height: 1.6;
}
.opportunity__guarantee strong { color: var(--gold-light); }
.opportunity__guarantee-icon { color: var(--gold); font-size: 1rem; flex-shrink: 0; }

.learn__frame {
  max-width: 820px;
  margin: 0 auto;
  border: 3px solid #3d1e06;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 0 0 1px #9a6c28, 0 24px 64px rgba(0,0,0,0.45);
  background: radial-gradient(ellipse at 40% 40%, #f0d47a 0%, #c8893a 45%, #8a5518 100%);
}

.learn__topbar,
.learn__bottombar {
  background: linear-gradient(to right, #2a1204, #52290c, #2a1204);
  padding: 14px 32px;
  text-align: center;
  font-family: var(--f-title);
  font-weight: 900;
  font-size: clamp(0.75rem, 1.5vw, 0.95rem);
  letter-spacing: 2.5px;
  color: var(--gold-light);
  text-transform: uppercase;
}
.learn__topbar  { border-bottom: 2px solid #9a6c28; }
.learn__bottombar { border-top: 2px solid #9a6c28; }

.learn__body {
  padding: clamp(28px, 5vw, 48px) clamp(28px, 6vw, 64px);
}

.learn__title {
  font-family: var(--f-title);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 900;
  text-align: center;
  letter-spacing: 3px;
  color: #2a1204;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.learn__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 480px;
  margin-bottom: 44px;
}
.learn__list li {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--f-title);
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  color: #2a1204;
}
.learn__check {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  background: var(--olive);
  color: #fff;
  font-weight: 900;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
}

/* Cartas */
.learn__cards {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  height: 160px;
  position: relative;
  margin-bottom: 12px;
}
.learn__card {
  position: absolute;
  width: 88px;
  height: 128px;
  background: linear-gradient(160deg, #fdfaf0 60%, #f0e4c0 100%);
  border: 1.5px solid #c8903a;
  border-radius: 7px;
  box-shadow: 3px 4px 14px rgba(0,0,0,0.35);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.learn__card--1 { transform: rotate(-16deg) translateX(-60px) translateY(10px); }
.learn__card--2 { transform: rotate(-4deg); z-index: 1; }
.learn__card--3 { transform: rotate(10deg) translateX(56px) translateY(6px); }

.card__num {
  font-family: var(--f-title);
  font-size: 2rem;
  font-weight: 900;
  color: #8b2a10;
  line-height: 1;
}
.card__suit {
  font-size: 1.3rem;
  color: #8b2a10;
  line-height: 1;
}


/* === AUTOR === */
.author {
  background: #1e0800;
  padding: var(--gap) clamp(20px, 5vw, 48px);
  text-align: center;
}

.author__box {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 40px;
  border: 1px solid rgba(180, 151, 39, 0.45);
  position: relative;
}
.author__box::before,
.author__box::after {
  content: '✦';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  color: var(--gold);
  background: var(--brown);
  padding: 0 12px;
  font-size: 1rem;
}
.author__box::before { top: -0.6em; }
.author__box::after  { bottom: -0.6em; }

.author__eyebrow {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: var(--gold);
  margin-bottom: 8px;
}
.author__name {
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 2rem;
  color: var(--gold-light);
  margin-bottom: 16px;
}
.author__divider {
  color: var(--gold);
  font-size: 1.1rem;
  margin-bottom: 24px;
  letter-spacing: 8px;
}
.author__bio {
  font-size: 1.02rem;
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 20px;
}
.author__bio em { font-style: italic; color: var(--cream); }
.author__tagline {
  font-family: var(--f-title);
  font-style: italic;
  color: var(--gold);
  font-size: 1rem;
}

/* === PREVIEW INTERIOR === */
.preview {
  background: var(--deep);
  padding: var(--gap) clamp(20px, 5vw, 48px);
  text-align: center;
  border-top: 1px solid rgba(180, 151, 39, 0.18);
}
.preview__kicker {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: var(--gold);
  margin-bottom: 12px;
}
.preview__img {
  display: block;
  width: 100%;
  max-width: 720px;
  height: auto;
  margin: 48px auto 0;
  border-radius: 6px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(180, 151, 39, 0.2);
}

/* === TESTIMONIALES === */
.testimonials {
  background: var(--parchment) url('images/parchment-texture.jpg') center/cover;
  padding: var(--gap) clamp(20px, 5vw, 48px);
}
.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.testimonials .section-title { color: var(--text-dark); }
.testimonials .section-title em { color: var(--gold); }
.testimonial {
  background: #ede8ca;
  border: 1px solid rgba(26, 8, 0, 0.08);
  border-radius: 4px;
  padding: 32px 28px;
  box-shadow: 0 4px 20px rgba(26,8,0,0.06);
}
.testimonial__stars {
  color: var(--gold);
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-bottom: 16px;
}
.testimonial__text {
  font-style: italic;
  font-size: 0.97rem;
  color: rgba(26, 8, 0, 0.65);
  line-height: 1.75;
  margin-bottom: 16px;
  position: relative;
  padding-top: 8px;
}
.testimonial__text::before {
  content: '\201C';
  font-family: var(--f-title);
  font-size: 4rem;
  color: var(--gold);
  line-height: 0;
  position: absolute;
  top: 0;
  left: -4px;
  opacity: 0.4;
}
.testimonial__author {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.5px;
}

/* === COMPRA === */
.purchase {
  background: linear-gradient(160deg, #1e0800 0%, #0f0500 100%);
  padding: var(--gap) clamp(20px, 5vw, 48px);
  border-top: 2px solid rgba(232, 146, 10, 0.3);
}

.purchase__card {
  max-width: 460px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.purchase__promo-img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.purchase__guarantee {
  margin-top: 20px;
  font-size: 0.82rem;
  font-style: italic;
  color: rgba(245, 234, 208, 0.38);
}

/* === INSTAGRAM === */
.instagram {
  background: #160600;
  padding: clamp(48px, 6vw, 72px) 24px;
  text-align: center;
  border-top: 1px solid rgba(232, 146, 10, 0.15);
  border-bottom: 1px solid rgba(232, 146, 10, 0.15);
}
.instagram__logo {
  height: 72px;
  width: auto;
  object-fit: contain;
  margin: 0 auto 16px;
  mix-blend-mode: screen;
}
.instagram__text {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 14px;
}
.instagram__handle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-title);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(180, 151, 39, 0.35);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.instagram__handle:hover { color: var(--gold-light); border-color: var(--gold-light); }
.instagram__icon { width: 22px; height: 22px; }

/* === BOTÓN FLOTANTE AUDIO === */
.audio-float {
  position: fixed;
  bottom: 56px;
  left: 24px;
  z-index: 999;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: var(--gold);
  color: #1a0800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 18px rgba(232, 146, 10, 0.5);
  transition: background 0.25s ease, transform 0.2s ease;
  padding: 0;
}
.audio-float:hover { transform: scale(1.05); }
.audio-float__icon { width: 26px; height: 26px; }
.audio-float__icon--off { display: none; }
.audio-float--muted { background: rgba(40, 22, 8, 0.85); color: var(--gold); }
.audio-float--muted .audio-float__icon--on  { display: none; }
.audio-float--muted .audio-float__icon--off { display: block; }

/* Pulso solo cuando está en pausa (para llamar la atención) */
.audio-float--muted::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(232, 146, 10, 0.4);
  animation: audio-pulse 2s ease-out infinite;
}
@keyframes audio-pulse {
  0%   { transform: scale(1);   opacity: 0.7; }
  70%  { transform: scale(1.6); opacity: 0;   }
  100% { transform: scale(1.6); opacity: 0;   }
}

/* === BOTÓN FLOTANTE WHATSAPP === */
.wa-float {
  position: fixed;
  bottom: 52px;
  right: 28px;
  z-index: 999;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background: #25d366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.55);
  transform-origin: center;
  text-decoration: none;
}
.wa-float svg {
  width: 34px;
  height: 34px;
  color: #fff;
}
.wa-float::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(37, 211, 102, 0.4);
  animation: wa-pulse 2s ease-out infinite;
}
@keyframes wa-pulse {
  0%   { transform: scale(1);   opacity: 0.7; }
  70%  { transform: scale(1.6); opacity: 0;   }
  100% { transform: scale(1.6); opacity: 0;   }
}

/* === FOOTER === */
.footer {
  background: #0a0200;
  padding: 24px;
  text-align: center;
  border-top: 1px solid rgba(232, 146, 10, 0.1);
}
.footer p {
  font-size: 0.8rem;
  color: rgba(245, 234, 208, 0.25);
}
.footer__credit {
  margin-top: 8px;
  font-size: 0.72rem;
  color: rgba(245, 234, 208, 0.18);
}
.footer__credit-link {
  color: rgba(245, 234, 208, 0.35);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 234, 208, 0.15);
  transition: color 0.2s, border-color 0.2s;
}
.footer__credit-link:hover {
  color: var(--gold);
  border-color: var(--gold);
}

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 900px) {
  .testimonials__grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 768px) {
  /* Learn: video edge-to-edge para ganar ancho en mobile */
  .learn { padding-left: 0; padding-right: 0; }
  .learn .container { padding-left: 0; padding-right: 0; }
  .learn__media {
    border-radius: 0;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  }

  .opportunity__cols { grid-template-columns: 1fr; }
  .opportunity__sep { display: none; }
  .opportunity__guarantee { flex-direction: column; gap: 12px; }
  /* Hero */
  .hero__content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero__book { order: -1; }
  .hero__book-img { max-width: 260px; margin: 0 auto; }
  .hero__subtitle { max-width: 100%; margin-left: auto; margin-right: auto; }
  .hero__social { justify-content: center; }

  /* Transformation */
  .transformation__grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .transformation__arrow { display: none; }

  .section-title--left { text-align: center; }

  /* Author */
  .author__box { padding: 36px 24px; }

  /* Purchase */
  .purchase__card { padding: 32px 20px; }
  .purchase__features { text-align: center; }

  /* Nav */
  .nav__title { display: none; }
}

@media (max-width: 480px) {
  .btn--primary { padding: 16px 32px; font-size: 1rem; }
  .btn--buy { padding: 18px 32px; font-size: 1.05rem; }
  .purchase__price { font-size: 3rem; }
  .testimonial { padding: 24px 20px; }
}