/* Sesión: readers-hero */
#readers-hero {
  position: relative;
  overflow: hidden;
  padding: 6rem 8vw 5rem;
  background: radial-gradient(circle at top left, #151b2f 0, #050813 55%, #020308 100%);
  color: #f5f7ff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
}

.readers-hero::before {
  content: "";
  position: absolute;
  inset: -40%;
  background:
    radial-gradient(circle at 10% 10%, rgba(103, 178, 255, 0.18) 0, transparent 55%),
    radial-gradient(circle at 80% 20%, rgba(172, 95, 255, 0.18) 0, transparent 55%);
  opacity: 0.9;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 3.5rem;
  align-items: center;
}

/* Texto principal */

.hero-content {
  max-width: 640px;
}

.hero-kicker {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  color: rgba(205, 214, 255, 0.75);
  margin-bottom: 0.8rem;
}

.hero-title {
  font-size: clamp(2.4rem, 3vw + 1.4rem, 3.2rem);
  line-height: 1.1;
  margin: 0 0 1.4rem;
  background: linear-gradient(120deg, #ffffff, #d5e4ff 25%, #86b5ff 60%, #e1c4ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subtitle {
  font-size: 0.98rem;
  line-height: 1.6;
  color: rgba(224, 231, 255, 0.84);
  max-width: 32rem;
  margin: 0 0 1.8rem;
}

/* Chips y tags */

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.4rem;
}

.hero-chip {
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(142, 181, 255, 0.45);
  background: radial-gradient(circle at top left, rgba(133, 197, 255, 0.16), transparent 60%);
  font-size: 0.78rem;
  color: rgba(223, 231, 255, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.hero-tag {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  background: rgba(14, 23, 46, 0.9);
  border: 1px solid rgba(83, 126, 211, 0.75);
  color: rgba(194, 210, 255, 0.92);
}

/* Bloque visual */

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-orbit {
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 20% 10%, rgba(143, 199, 255, 0.35), transparent 65%),
    radial-gradient(circle at 80% 80%, rgba(178, 121, 255, 0.35), transparent 65%);
  opacity: 0.4;
  filter: blur(5px);
  animation: hero-orbit-pulse 10s ease-in-out infinite alternate;
}

.hero-card {
  position: relative;
  width: 100%;
  max-width: 360px;
  border-radius: 1.6rem;
  padding: 1rem 1rem 1.2rem;
  background:
    linear-gradient(145deg, rgba(5, 9, 24, 0.96), rgba(11, 18, 39, 0.98)),
    radial-gradient(circle at top left, rgba(120, 184, 255, 0.35), transparent 55%);
  border: 1px solid rgba(132, 174, 255, 0.45);
  box-shadow:
    0 18px 45px rgba(4, 7, 20, 0.9),
    0 0 0 1px rgba(104, 164, 255, 0.18);
  overflow: hidden;
}

/* Brillo lateral decorativo */

.hero-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(178, 121, 255, 0.18), transparent 40%, rgba(120, 184, 255, 0.18));
  mix-blend-mode: screen;
  opacity: 0.3;
  pointer-events: none;
}

/* Cabecera de la tarjeta */

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.9rem;
}

.hero-card-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #ffffff, #8fbaff);
  opacity: 0.8;
}

.hero-card-label {
  margin-left: auto;
  font-size: 0.64rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: rgba(196, 210, 255, 0.85);
}

/* Cuerpo de la tarjeta */

.hero-card-body {
  position: relative;
  padding: 0.6rem 0.2rem 0.1rem;
}

.hero-lines {
  display: flex;
  flex-direction: column;
  gap: 0.32rem;
  margin-bottom: 1rem;
}

.hero-line {
  display: block;
  height: 0.38rem;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(70, 100, 170, 0.35), rgba(150, 203, 255, 0.8));
  opacity: 0.65;
}

.hero-line-strong {
  width: 92%;
  opacity: 0.95;
}

.hero-line-medium {
  width: 78%;
}

.hero-line-short {
  width: 52%;
}

.hero-line:nth-child(2) {
  width: 83%;
}

.hero-line:nth-child(3) {
  width: 68%;
}

.hero-line:nth-child(5) {
  width: 61%;
}

/* Pequeña animación de "respiración" en las líneas */

.hero-line-strong,
.hero-line-medium,
.hero-line-short {
  animation: hero-line-pulse 4.5s ease-in-out infinite;
}

/* Pills */

.hero-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.9rem;
}

.hero-pill {
  font-size: 0.68rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: rgba(11, 20, 46, 0.95);
  border: 1px solid rgba(121, 165, 255, 0.5);
  color: rgba(214, 226, 255, 0.96);
}

.hero-pill-active {
  background: linear-gradient(120deg, #81b5ff, #ae8fff);
  color: #050814;
  border-color: transparent;
}

/* Estado lector */

.hero-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.55rem 0.7rem;
  border-radius: 0.9rem;
  background: radial-gradient(circle at top left, rgba(128, 190, 255, 0.25), rgba(6, 11, 28, 0.95));
  border: 1px solid rgba(136, 181, 255, 0.6);
}

.hero-status-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: rgba(193, 209, 255, 0.92);
}

.hero-status-value {
  font-size: 0.75rem;
  font-weight: 600;
  color: #ffffff;
}

/* Animaciones */

@keyframes hero-orbit-pulse {
  0% {
    transform: scale(1) translateY(0);
    opacity: 0.35;
  }
  100% {
    transform: scale(1.07) translateY(-8px);
    opacity: 0.55;
  }
}

@keyframes hero-line-pulse {
  0% {
    opacity: 0.55;
  }
  50% {
    opacity: 0.98;
  }
  100% {
    opacity: 0.6;
  }
}

/* Responsive */

@media (max-width: 960px) {
  #readers-hero {
    padding: 4.5rem 6vw 4rem;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.8rem;
  }

  .hero-content {
    order: 1;
  }

  .hero-visual {
    order: 2;
  }

  .hero-content {
    max-width: none;
  }
}

@media (max-width: 640px) {
  #readers-hero {
    padding: 3.8rem 5vw 3.6rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 0.92rem;
  }

  .hero-card {
    max-width: 100%;
  }

  .hero-chips {
    gap: 0.4rem;
  }

  .hero-chip {
    font-size: 0.72rem;
  }

  .hero-tags {
    gap: 0.3rem;
  }

  .hero-tag {
    font-size: 0.68rem;
  }
}
/* Sesión 2: readers-intro */
#readers-intro {
  position: relative;
  padding: 6rem 8vw;
  background: linear-gradient(135deg, #eef2ff 0%, #f7f9ff 30%, #ffffff 100%);
  color: #0d1220;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

/* Fondo futurista con orbes suaves */
#readers-intro::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 20% 30%, rgba(136, 158, 255, 0.25), transparent 55%),
    radial-gradient(circle at 80% 70%, rgba(176, 111, 255, 0.25), transparent 60%);
  opacity: 0.35;
  pointer-events: none;
}

.intro-container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.4fr 40px 1fr;
  gap: 2.5rem;
  align-items: center;
}

/* Columna izquierda */

.intro-title {
  font-size: clamp(1.9rem, 1.6vw + 1rem, 2.4rem);
  line-height: 1.15;
  margin-bottom: 1rem;
  background: linear-gradient(120deg, #0d1220, #364b8a 55%, #7b54b6);
  -webkit-background-clip: text;
  color: transparent;
  font-weight: 700;
}

.intro-subtitle {
  font-size: 1rem;
  line-height: 1.6;
  color: #2c3347;
  max-width: 34rem;
}

/* Divisor vertical */

.intro-divider {
  width: 2px;
  height: 80%;
  background: linear-gradient(to bottom,
    rgba(80, 110, 200, 0.2),
    rgba(120, 90, 255, 0.45),
    rgba(80, 110, 200, 0.2)
  );
  border-radius: 2px;
  margin: auto;
}

/* Columna derecha */

.intro-right {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.intro-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
}

.intro-bullet {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6f90ff, #a46eff);
  box-shadow: 0 0 10px rgba(130, 150, 255, 0.5);
  margin-top: 4px;
}

.intro-text {
  font-size: 0.96rem;
  line-height: 1.55;
  color: #1f2537;
  max-width: 26rem;
}

/* Responsive */

@media (max-width: 920px) {
  .intro-container {
    grid-template-columns: 1fr;
    gap: 2.2rem;
  }

  .intro-divider {
    display: none;
  }

  .intro-title {
    font-size: 2rem;
  }

  .intro-text {
    max-width: none;
  }
}

@media (max-width: 600px) {
  #readers-intro {
    padding: 4rem 6vw;
  }

  .intro-title {
    font-size: 1.7rem;
  }

  .intro-subtitle {
    font-size: 0.95rem;
  }
}
/* Sesión 3: readers-modes */
#readers-modes {
  position: relative;
  padding: 5.5rem 8vw 5.8rem;
  background: radial-gradient(circle at top, #0b1021 0%, #070a13 45%, #050712 100%);
  color: #f5f7ff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

/* Fondo sutil con patrones */
#readers-modes::before {
  content: "";
  position: absolute;
  inset: -30%;
  background:
    radial-gradient(circle at 10% 0%, rgba(118, 171, 255, 0.18), transparent 55%),
    radial-gradient(circle at 90% 80%, rgba(187, 120, 255, 0.18), transparent 60%);
  opacity: 0.6;
  pointer-events: none;
}

#readers-modes::after {
  content: "";
  position: absolute;
  inset: 10%;
  background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.05) 1px, transparent 0);
  background-size: 26px 26px;
  opacity: 0.25;
  pointer-events: none;
}

.modes-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
}

/* Cabecera */

.modes-header {
  text-align: left;
  max-width: 640px;
  margin-bottom: 2.8rem;
}

.modes-kicker {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  color: rgba(192, 208, 255, 0.7);
  margin-bottom: 0.7rem;
}

.modes-title {
  font-size: clamp(2rem, 1.4vw + 1.4rem, 2.4rem);
  line-height: 1.15;
  margin-bottom: 0.9rem;
  background: linear-gradient(120deg, #ffffff, #d1ddff 40%, #8bb1ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

.modes-subtitle {
  font-size: 0.98rem;
  line-height: 1.6;
  color: rgba(215, 225, 255, 0.86);
}

/* Grid de modos */

.modes-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.8rem;
}

/* Tarjetas base */

.mode-card {
  position: relative;
  border-radius: 1.4rem;
  padding: 1.5rem 1.5rem 1.6rem;
  background: radial-gradient(circle at top left, rgba(137, 183, 255, 0.18), rgba(9, 13, 32, 0.96));
  border: 1px solid rgba(143, 179, 255, 0.55);
  box-shadow:
    0 16px 40px rgba(2, 5, 14, 0.9),
    0 0 0 1px rgba(95, 140, 235, 0.25);
  overflow: hidden;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Subtle gradient variation by mode */
.mode-simple {
  background:
    radial-gradient(circle at top left, rgba(137, 183, 255, 0.2), rgba(9, 13, 32, 0.96));
}

.mode-pro {
  background:
    radial-gradient(circle at top center, rgba(166, 128, 255, 0.22), rgba(8, 11, 30, 0.97));
}

.mode-tech {
  background:
    radial-gradient(circle at 80% 0%, rgba(122, 228, 255, 0.22), rgba(7, 10, 28, 0.97));
}

.mode-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.04), transparent 30%, rgba(255, 255, 255, 0.03));
  mix-blend-mode: screen;
  opacity: 0.7;
  pointer-events: none;
}

/* Encabezado de cada modo */

.mode-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.9rem;
  gap: 0.6rem;
}

.mode-label {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(224, 233, 255, 0.96);
}

.mode-chip {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(177, 201, 255, 0.7);
  color: rgba(220, 230, 255, 0.98);
  background: rgba(8, 14, 36, 0.95);
}

.mode-chip-accent {
  background: linear-gradient(120deg, #86b4ff, #b087ff);
  color: #050814;
  border-color: transparent;
}

/* Descripción y lista */

.mode-description {
  font-size: 0.9rem;
  line-height: 1.55;
  color: rgba(216, 226, 255, 0.9);
  margin-bottom: 1.1rem;
}

.mode-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.mode-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  font-size: 0.86rem;
  line-height: 1.5;
  color: rgba(205, 219, 255, 0.9);
}

.mode-dot {
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-top: 0.3rem;
  background: radial-gradient(circle at 30% 30%, #ffffff, #88b4ff);
  box-shadow: 0 0 8px rgba(136, 180, 255, 0.7);
}

/* Micro-animación al pasar el ratón */

.mode-card {
  transition:
    transform 220ms ease-out,
    box-shadow 220ms ease-out,
    border-color 220ms ease-out;
}

.mode-card:hover {
  transform: translateY(-6px);
  box-shadow:
    0 20px 55px rgba(1, 4, 12, 0.95),
    0 0 0 1px rgba(140, 190, 255, 0.55);
  border-color: rgba(180, 210, 255, 0.9);
}

/* Responsive */

@media (max-width: 1024px) {
  .modes-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  #readers-modes {
    padding: 4.5rem 6vw 4.8rem;
  }

  .modes-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 540px) {
  .modes-title {
    font-size: 1.8rem;
  }

  .modes-subtitle {
    font-size: 0.92rem;
  }

  .mode-card {
    padding: 1.3rem 1.25rem 1.4rem;
  }

  .mode-description {
    font-size: 0.88rem;
  }

  .mode-list li {
    font-size: 0.84rem;
  }
}

/* Sesión 4: readers-features-clusters */
#readers-features-clusters {
  position: relative;
  padding: 5.5rem 8vw 5.5rem;
  background: linear-gradient(140deg, #050815 0%, #070c1f 45%, #040612 100%);
  color: #f5f7ff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

/* Fondo con líneas suaves diagonales */
#readers-features-clusters::before {
  content: "";
  position: absolute;
  inset: -10%;
  background-image: linear-gradient(
      130deg,
      rgba(120, 160, 255, 0.09) 0,
      transparent 55%
    ),
    linear-gradient(
      -130deg,
      rgba(176, 120, 255, 0.09) 0,
      transparent 55%
    );
  opacity: 0.75;
  pointer-events: none;
}

#readers-features-clusters::after {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 32px;
  border: 1px solid rgba(118, 160, 255, 0.18);
  opacity: 0.4;
  pointer-events: none;
}

.features-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
}

/* Cabecera */

.features-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

.features-kicker {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.76rem;
  color: rgba(193, 209, 255, 0.78);
  margin-bottom: 0.7rem;
}

.features-title {
  font-size: clamp(2rem, 1.6vw + 1.4rem, 2.5rem);
  line-height: 1.2;
  margin-bottom: 1rem;
  background: linear-gradient(115deg, #ffffff, #d7e1ff 40%, #8bb5ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

.features-subtitle {
  font-size: 0.98rem;
  line-height: 1.7;
  color: rgba(213, 224, 255, 0.9);
  margin: 0 auto 1.8rem;
}

/* Pills de categorías */

.features-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
}

.features-pill {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(151, 188, 255, 0.7);
  color: rgba(221, 231, 255, 0.96);
  background: radial-gradient(circle at top left, rgba(135, 187, 255, 0.22), rgba(10, 16, 36, 0.98));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Responsive */

@media (max-width: 768px) {
  #readers-features-clusters {
    padding: 4.6rem 6vw 4.6rem;
  }

  .features-title {
    font-size: 2rem;
  }

  .features-subtitle {
    font-size: 0.94rem;
  }
}

@media (max-width: 540px) {
  .features-pill {
    font-size: 0.7rem;
    padding: 0.35rem 0.8rem;
  }
}
/* Sesión 4.1: readers-features-experience */
#readers-features-experience {
  position: relative;
  padding: 3.8rem 8vw 4.2rem;
  background: radial-gradient(circle at top, #050817 0%, #050615 55%, #03040d 100%);
  color: #f5f7ff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

#readers-features-experience::before {
  content: "";
  position: absolute;
  inset: -25%;
  background:
    radial-gradient(circle at 15% 10%, rgba(132, 176, 255, 0.24), transparent 55%),
    radial-gradient(circle at 85% 90%, rgba(183, 123, 255, 0.22), transparent 55%);
  opacity: 0.7;
  pointer-events: none;
}

.exp-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
}

/* Cabecera */

.exp-header {
  max-width: 640px;
  margin-bottom: 2.4rem;
}

.exp-title {
  font-size: clamp(1.4rem, 1vw + 1rem, 1.7rem);
  margin-bottom: 0.6rem;
  background: linear-gradient(115deg, #ffffff, #d4ddff 40%, #8bb5ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 600;
}

.exp-subtitle {
  font-size: 0.96rem;
  line-height: 1.7;
  color: rgba(212, 223, 255, 0.9);
}

/* Grid de tarjetas */

.exp-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.6rem;
}

/* Tarjeta */

.exp-card {
  position: relative;
  border-radius: 1.4rem;
  padding: 1.4rem 1.5rem 1.6rem;
  background:
    radial-gradient(circle at top left, rgba(136, 181, 255, 0.18), rgba(9, 13, 32, 0.98));
  border: 1px solid rgba(137, 180, 255, 0.5);
  box-shadow:
    0 16px 38px rgba(1, 4, 12, 0.95),
    0 0 0 1px rgba(104, 152, 240, 0.24);
  overflow: hidden;
}

.exp-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.04), transparent 35%, rgba(255, 255, 255, 0.03));
  mix-blend-mode: screen;
  opacity: 0.8;
  pointer-events: none;
}

/* Encabezado de la tarjeta */

.exp-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.8rem;
}

.exp-tag {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(175, 205, 255, 0.9);
  color: rgba(224, 234, 255, 0.98);
  background: rgba(8, 14, 34, 0.96);
}

.exp-orbit {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  border: 1px solid rgba(154, 197, 255, 0.7);
  box-shadow: 0 0 12px rgba(152, 195, 255, 0.6);
  position: relative;
}

.exp-orbit::before {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: inherit;
  background: radial-gradient(circle at 30% 30%, #ffffff, #8bb7ff);
  opacity: 0.9;
}

/* Texto de la tarjeta */

.exp-card-title {
  font-size: 1rem;
  margin-bottom: 0.6rem;
  color: #f6f7ff;
  font-weight: 600;
}

.exp-card-text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(210, 224, 255, 0.9);
}

/* Hover */

.exp-card {
  transition:
    transform 220ms ease-out,
    box-shadow 220ms ease-out,
    border-color 220ms ease-out;
}

.exp-card:hover {
  transform: translateY(-6px);
  box-shadow:
    0 22px 50px rgba(0, 3, 8, 0.98),
    0 0 0 1px rgba(173, 210, 255, 0.7);
  border-color: rgba(186, 214, 255, 0.95);
}

/* Responsive */

@media (max-width: 980px) {
  .exp-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  #readers-features-experience {
    padding: 3.4rem 6vw 3.8rem;
  }

  .exp-grid {
    grid-template-columns: 1fr;
  }

  .exp-header {
    margin-bottom: 2rem;
  }
}

@media (max-width: 520px) {
  .exp-card {
    padding: 1.2rem 1.25rem 1.4rem;
  }

  .exp-card-text {
    font-size: 0.88rem;
  }
}
/* Sesión 4.2: readers-features-organization */
#readers-features-organization {
  position: relative;
  padding: 4rem 8vw 4.6rem;
  background: linear-gradient(150deg, #f6f7ff 0%, #eef2ff 40%, #ffffff 100%);
  color: #0d1325;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

/* Fondo suave con líneas verticales futuristas */
#readers-features-organization::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(120, 150, 255, 0.12) 0px,
    rgba(120, 150, 255, 0.12) 1px,
    transparent 1px,
    transparent 48px
  );
  opacity: 0.25;
  pointer-events: none;
}

.org-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
}

/* Cabecera */

.org-header {
  max-width: 640px;
  margin-bottom: 2.8rem;
}

.org-title {
  font-size: clamp(1.5rem, 1vw + 1.2rem, 1.9rem);
  margin-bottom: 0.6rem;
  background: linear-gradient(120deg, #0d1325, #3b4f96 45%, #6d3fcf);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

.org-subtitle {
  font-size: 1rem;
  line-height: 1.65;
  color: #2d3449;
}

/* Grid de tarjetas */

.org-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.8rem;
}

/* Estilo de tarjeta */

.org-card {
  position: relative;
  border-radius: 1.4rem;
  padding: 1.6rem 1.6rem 1.9rem;
  background: #ffffff;
  border: 1px solid rgba(75, 110, 200, 0.18);
  box-shadow:
    0 12px 26px rgba(20, 28, 60, 0.08),
    0 0 0 1px rgba(80, 120, 220, 0.08);
  overflow: hidden;
}

/* Efecto futurista sutil */

.org-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    130deg,
    rgba(125, 165, 255, 0.08),
    rgba(200, 130, 255, 0.05),
    transparent 60%
  );
  pointer-events: none;
}

/* Encabezado de tarjeta */

.org-card-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.9rem;
}

.org-tag {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(230, 235, 255, 0.7);
  border: 1px solid rgba(120, 150, 255, 0.55);
  color: #1a223d;
}

.org-deco {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  border: 1px solid rgba(120, 150, 255, 0.55);
  box-shadow: 0 0 10px rgba(120, 150, 255, 0.4);
  position: relative;
}

.org-deco::before {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: inherit;
  background: radial-gradient(circle at 30% 30%, #ffffff, #90adff);
  opacity: 0.9;
}

/* Texto */

.org-card-title {
  font-size: 1rem;
  margin-bottom: 0.6rem;
  color: #0f1322;
  font-weight: 600;
}

.org-card-text {
  font-size: 0.92rem;
  line-height: 1.6;
  color: #3a4259;
}

/* Hover */

.org-card {
  transition:
    transform 220ms ease-out,
    box-shadow 220ms ease-out,
    border-color 220ms ease-out;
}

.org-card:hover {
  transform: translateY(-5px);
  box-shadow:
    0 18px 45px rgba(20, 28, 60, 0.12),
    0 0 0 1px rgba(110, 150, 255, 0.3);
  border-color: rgba(110, 150, 255, 0.55);
}

/* Responsive */

@media (max-width: 900px) {
  .org-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  #readers-features-organization {
    padding: 3.5rem 6vw 4rem;
  }

  .org-card {
    padding: 1.3rem 1.3rem 1.6rem;
  }

  .org-card-text {
    font-size: 0.88rem;
  }
}
/* Sesión 4.3: readers-features-navigation */
#readers-features-navigation {
  position: relative;
  padding: 4rem 8vw 4.6rem;
  background: radial-gradient(circle at 0% 0%, #11182f 0%, #070c1f 45%, #050713 100%);
  color: #f5f7ff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

/* Fondo con líneas diagonales sutiles para sensación de movimiento */
#readers-features-navigation::before {
  content: "";
  position: absolute;
  inset: -20%;
  background-image: linear-gradient(
      135deg,
      rgba(137, 182, 255, 0.12) 0,
      transparent 45%
    ),
    linear-gradient(
      -135deg,
      rgba(179, 122, 255, 0.12) 0,
      transparent 45%
    );
  opacity: 0.7;
  pointer-events: none;
}

.nav-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
}

/* Cabecera */

.nav-header {
  max-width: 640px;
  margin-bottom: 2.6rem;
}

.nav-title {
  font-size: clamp(1.5rem, 1vw + 1.2rem, 1.9rem);
  margin-bottom: 0.6rem;
  background: linear-gradient(120deg, #ffffff, #d7e4ff 40%, #8cb6ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 650;
}

.nav-subtitle {
  font-size: 0.96rem;
  line-height: 1.7;
  color: rgba(211, 223, 255, 0.9);
}

/* Grid */

.nav-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.6rem;
  align-items: stretch;
}

/* Tarjetas */

.nav-card {
  position: relative;
  border-radius: 1.5rem;
  padding: 1.5rem 1.5rem 1.7rem;
  background: radial-gradient(circle at top left, rgba(134, 180, 255, 0.2), rgba(8, 12, 30, 0.98));
  border: 1px solid rgba(140, 180, 255, 0.55);
  box-shadow:
    0 16px 40px rgba(1, 4, 12, 0.95),
    0 0 0 1px rgba(100, 150, 235, 0.25);
  overflow: hidden;
}

.nav-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), transparent 40%);
  mix-blend-mode: screen;
  opacity: 0.7;
  pointer-events: none;
}

/* Tarjeta ancha para el mapa mental */

.nav-card-wide {
  grid-column: span 3;
}

/* Iconos circulares */

.nav-icon-ring {
  width: 46px;
  height: 46px;
  border-radius: 999px;
  border: 1px solid rgba(151, 195, 255, 0.8);
  box-shadow: 0 0 16px rgba(146, 191, 255, 0.6);
  margin-bottom: 0.9rem;
  position: relative;
}

/* Icono: gestos literarios (líneas en movimiento) */

.nav-icon-line {
  position: absolute;
  left: 9px;
  right: 9px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #8ab8ff, #c395ff);
}

.nav-icon-line-1 {
  top: 16px;
}

.nav-icon-line-2 {
  top: 26px;
  opacity: 0.7;
}

/* Icono: comparación lado a lado */

.nav-split-box {
  position: absolute;
  top: 10px;
  bottom: 10px;
  width: 14px;
  border-radius: 6px;
  border: 1px solid rgba(140, 185, 255, 0.8);
  background: rgba(8, 13, 30, 0.9);
}

.nav-split-left {
  left: 10px;
}

.nav-split-right {
  right: 10px;
}

/* Icono: lectura en capas */

.nav-layer {
  position: absolute;
  inset: 13px;
  border-radius: 6px;
  border: 1px solid rgba(147, 190, 255, 0.8);
  background: rgba(8, 13, 30, 0.95);
}

.nav-layer-back {
  transform: translate(-3px, 3px);
  opacity: 0.7;
}

.nav-layer-front {
  transform: translate(3px, -3px);
}

/* Icono: mapa mental */

.nav-icon-map {
  display: inline-block;
}

.nav-node {
  position: absolute;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #ffffff, #8ab7ff);
  box-shadow: 0 0 10px rgba(144, 189, 255, 0.7);
}

.nav-node-main {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.nav-node-1 {
  left: 10px;
  top: 12px;
}

.nav-node-2 {
  right: 10px;
  top: 15px;
}

.nav-node-3 {
  left: 16px;
  bottom: 10px;
}

/* Texto de tarjeta */

.nav-card-title {
  font-size: 0.98rem;
  margin-bottom: 0.55rem;
  color: #f6f7ff;
  font-weight: 600;
}

.nav-card-text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(210, 223, 255, 0.9);
}

/* Hover */

.nav-card {
  transition:
    transform 220ms ease-out,
    box-shadow 220ms ease-out,
    border-color 220ms ease-out;
}

.nav-card:hover {
  transform: translateY(-6px);
  box-shadow:
    0 22px 52px rgba(0, 0, 0, 0.98),
    0 0 0 1px rgba(173, 210, 255, 0.7);
  border-color: rgba(186, 215, 255, 0.95);
}

/* Responsive */

@media (max-width: 980px) {
  .nav-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav-card-wide {
    grid-column: span 2;
  }
}

@media (max-width: 720px) {
  #readers-features-navigation {
    padding: 3.5rem 6vw 4rem;
  }

  .nav-grid {
    grid-template-columns: 1fr;
  }

  .nav-card-wide {
    grid-column: span 1;
  }
}

@media (max-width: 520px) {
  .nav-card {
    padding: 1.3rem 1.3rem 1.5rem;
  }

  .nav-card-text {
    font-size: 0.88rem;
  }
}
/* Sesión 4.4: readers-features-pro-reading */
#readers-features-pro-reading {
  position: relative;
  padding: 4rem 8vw 4.8rem;
  background: linear-gradient(160deg, #f4f6ff 0%, #eef2ff 40%, #ffffff 100%);
  color: #0f1424;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

/* Fondo con patrón técnico suave */
#readers-features-pro-reading::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(
      120deg,
      rgba(130, 160, 240, 0.18) 0,
      transparent 55%
    ),
    repeating-linear-gradient(
      0deg,
      rgba(70, 100, 190, 0.06) 0px,
      rgba(70, 100, 190, 0.06) 1px,
      transparent 1px,
      transparent 32px
    );
  opacity: 0.4;
  pointer-events: none;
}

.pro-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
}

/* Cabecera */

.pro-header {
  max-width: 660px;
  margin-bottom: 2.6rem;
}

.pro-title {
  font-size: clamp(1.5rem, 1vw + 1.2rem, 1.9rem);
  margin-bottom: 0.6rem;
  background: linear-gradient(115deg, #10152a, #3c4f96 45%, #6c3fd2);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

.pro-subtitle {
  font-size: 0.98rem;
  line-height: 1.7;
  color: #2c3550;
}

/* Grid */

.pro-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.8rem;
  align-items: stretch;
}

/* Tarjeta */

.pro-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.1rem;
  padding: 1.5rem 1.6rem;
  border-radius: 1.4rem;
  background: #ffffff;
  border: 1px solid rgba(80, 115, 200, 0.18);
  box-shadow:
    0 12px 28px rgba(18, 26, 60, 0.08),
    0 0 0 1px rgba(80, 120, 210, 0.08);
  overflow: hidden;
}

/* Tarjeta grande */

.pro-card-wide {
  grid-column: span 2;
}

/* Iconos */

.pro-icon {
  position: relative;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  background: radial-gradient(circle at 20% 20%, #ffffff, #dfe6ff);
  border: 1px solid rgba(120, 150, 235, 0.6);
  box-shadow: 0 10px 20px rgba(40, 60, 140, 0.25);
  flex-shrink: 0;
}

/* Icono sticky notes */

.pro-icon-notes .pro-note-line {
  position: absolute;
  left: 11px;
  right: 11px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #6f8cff, #b07cff);
}

.pro-note-line-1 {
  top: 18px;
}

.pro-note-line-2 {
  top: 26px;
  width: 60%;
}

.pro-note-pin {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #ffce73;
  top: 10px;
  right: 10px;
  box-shadow: 0 0 8px rgba(255, 180, 80, 0.5);
}

/* Icono figuras */

.pro-icon-figure .pro-figure-rect {
  position: absolute;
  border-radius: 5px;
  border: 1px solid rgba(110, 145, 230, 0.9);
  background: rgba(235, 240, 255, 0.95);
}

.pro-figure-main {
  inset: 12px 10px 10px 10px;
}

.pro-figure-small-1 {
  width: 16px;
  height: 10px;
  left: 12px;
  top: 14px;
}

.pro-figure-small-2 {
  width: 16px;
  height: 10px;
  right: 12px;
  bottom: 14px;
}

/* Icono documento técnico */

.pro-icon-doc .pro-doc-sidebar {
  position: absolute;
  top: 12px;
  bottom: 12px;
  left: 11px;
  width: 8px;
  border-radius: 4px;
  background: linear-gradient(180deg, #6e8cff, #b385ff);
}

.pro-icon-doc .pro-doc-line {
  position: absolute;
  left: 23px;
  right: 10px;
  height: 2px;
  border-radius: 999px;
  background: rgba(93, 122, 210, 0.95);
}

.pro-doc-line-1 {
  top: 16px;
}

.pro-doc-line-2 {
  top: 24px;
}

.pro-doc-line-3 {
  top: 32px;
  width: 60%;
}

/* Contenido tarjeta */

.pro-card-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.pro-card-title {
  font-size: 0.98rem;
  margin-bottom: 0.55rem;
  color: #121729;
  font-weight: 600;
}

.pro-card-text {
  font-size: 0.9rem;
  line-height: 1.65;
  color: #384260;
}

/* Hover */

.pro-card {
  transition:
    transform 220ms ease-out,
    box-shadow 220ms ease-out,
    border-color 220ms ease-out;
}

.pro-card:hover {
  transform: translateY(-5px);
  box-shadow:
    0 18px 40px rgba(16, 24, 55, 0.16),
    0 0 0 1px rgba(110, 150, 235, 0.4);
  border-color: rgba(110, 150, 235, 0.6);
}

/* Responsive */

@media (max-width: 900px) {
  .pro-grid {
    grid-template-columns: 1fr;
  }

  .pro-card-wide {
    grid-column: span 1;
  }
}

@media (max-width: 600px) {
  #readers-features-pro-reading {
    padding: 3.6rem 6vw 4.2rem;
  }

  .pro-card {
    grid-template-columns: auto 1fr;
    padding: 1.3rem 1.3rem 1.5rem;
  }

  .pro-card-text {
    font-size: 0.88rem;
  }
}
/* Sesión 4.5: readers-features-comfort-privacy */
#readers-features-comfort-privacy {
  position: relative;
  padding: 4.2rem 8vw 5rem;
  background: linear-gradient(180deg, #0a0f1c 0%, #0c142a 45%, #0a0f1c 100%);
  color: #f5f7ff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

/* Fondo suave cálido */
#readers-features-comfort-privacy::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 20% 20%, rgba(125, 165, 255, 0.18), transparent 60%),
    radial-gradient(circle at 80% 80%, rgba(180, 120, 255, 0.18), transparent 60%);
  opacity: 0.7;
  pointer-events: none;
}

.comfort-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
}

/* Cabecera */

.comfort-header {
  max-width: 660px;
  margin-bottom: 2.8rem;
}

.comfort-title {
  font-size: clamp(1.6rem, 1vw + 1.2rem, 2rem);
  margin-bottom: 0.65rem;
  background: linear-gradient(115deg, #ffffff, #d7e2ff 45%, #93c2ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

.comfort-subtitle {
  font-size: 0.97rem;
  line-height: 1.65;
  color: rgba(215, 228, 255, 0.9);
}

/* Grid */

.comfort-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.6rem;
}

/* Tarjetas */

.comfort-card {
  position: relative;
  border-radius: 1.5rem;
  padding: 1.5rem 1.5rem 1.8rem;
  background: radial-gradient(circle at top left, rgba(135, 180, 255, 0.2), rgba(10, 14, 28, 0.98));
  border: 1px solid rgba(140, 180, 255, 0.5);
  box-shadow:
    0 16px 40px rgba(1, 4, 12, 0.95),
    0 0 0 1px rgba(100, 150, 235, 0.25);
  overflow: hidden;
}

.comfort-card-wide {
  grid-column: span 3;
}

/* Iconos genéricos */

.comfort-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  border: 1px solid rgba(150, 190, 255, 0.7);
  background: rgba(8, 12, 30, 0.9);
  box-shadow: 0 0 14px rgba(150, 190, 255, 0.4);
  margin-bottom: 1rem;
  position: relative;
}

/* Icono largo plazo */

.comfort-long-line {
  position: absolute;
  left: 10px;
  right: 10px;
  height: 2px;
  top: 23px;
  border-radius: 999px;
  background: linear-gradient(90deg, #8ab8ff, #bf9cff);
}

.comfort-long-line.small {
  top: 28px;
  left: 16px;
  right: 16px;
  opacity: 0.7;
}

/* Icono estados de ánimo */

.comfort-mood-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #ffffff, #9fbaff);
}

.comfort-mood-dot.m1 { left: 12px; top: 14px; }
.comfort-mood-dot.m2 { left: 20px; top: 26px; }
.comfort-mood-dot.m3 { left: 28px; top: 14px; }

/* Icono continuidad */

.comfort-flow-line {
  position: absolute;
  left: 12px;
  right: 12px;
  height: 2px;
  background: linear-gradient(90deg, #86b2ff, #c18aff);
  border-radius: 999px;
}

.comfort-flow-line.f1 { top: 19px; }
.comfort-flow-line.f2 { top: 28px; width: 60%; }

/* Icono silencio absoluto */

.comfort-silence-ring {
  position: absolute;
  inset: 12px;
  border-radius: 999px;
  border: 1px solid rgba(150, 190, 255, 0.7);
  opacity: 0.8;
}

/* Icono audio ambiental */

.comfort-audio-bar {
  position: absolute;
  bottom: 12px;
  width: 6px;
  border-radius: 999px;
  background: linear-gradient(180deg, #8ab8ff, #b585ff);
}

.comfort-audio-bar.b1 { left: 16px; height: 18px; }
.comfort-audio-bar.b2 { left: 22px; height: 26px; }
.comfort-audio-bar.b3 { left: 28px; height: 14px; }

/* Icono desbloqueo por libro */

.comfort-lock-body {
  position: absolute;
  bottom: 14px;
  left: 16px;
  right: 16px;
  height: 16px;
  border-radius: 4px;
  background: rgba(180, 200, 255, 0.9);
}

.comfort-lock-ring {
  position: absolute;
  top: 12px;
  left: 20px;
  right: 20px;
  height: 12px;
  border-radius: 14px;
  border: 2px solid rgba(200, 220, 255, 0.95);
}

/* Icono permisos offline */

.comfort-off-dot {
  position: absolute;
  left: 15px;
  top: 18px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #ffffff, #94b8ff);
}

.comfort-off-line {
  position: absolute;
  left: 30px;
  right: 12px;
  top: 22px;
  height: 2px;
  background: rgba(140, 170, 255, 0.9);
  border-radius: 999px;
}

/* Texto */

.comfort-card-title {
  font-size: 1rem;
  margin-bottom: 0.6rem;
  color: #f6f7ff;
  font-weight: 600;
}

.comfort-card-text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(210, 223, 255, 0.9);
}

/* Hover */

.comfort-card {
  transition:
    transform 220ms ease-out,
    box-shadow 220ms ease-out,
    border-color 220ms ease-out;
}

.comfort-card:hover {
  transform: translateY(-6px);
  box-shadow:
    0 22px 55px rgba(0, 0, 0, 0.95),
    0 0 0 1px rgba(170, 210, 255, 0.7);
  border-color: rgba(190, 220, 255, 0.95);
}

/* Responsive */

@media (max-width: 980px) {
  .comfort-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .comfort-card-wide {
    grid-column: span 2;
  }
}

@media (max-width: 720px) {
  #readers-features-comfort-privacy {
    padding: 3.6rem 6vw 4.2rem;
  }

  .comfort-grid {
    grid-template-columns: 1fr;
  }

  .comfort-card-wide {
    grid-column: span 1;
  }
}

@media (max-width: 520px) {
  .comfort-card {
    padding: 1.3rem 1.3rem 1.5rem;
  }

  .comfort-card-text {
    font-size: 0.88rem;
  }
}
/* Sesión 5: readers-flow */
#readers-flow {
  position: relative;
  padding: 4.5rem 8vw 5rem;
  background: linear-gradient(145deg, #060917 0%, #050815 40%, #040613 100%);
  color: #f5f7ff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

/* Fondo suave */
#readers-flow::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 15% 15%, rgba(135, 180, 255, 0.22), transparent 60%),
    radial-gradient(circle at 85% 85%, rgba(180, 120, 255, 0.22), transparent 60%);
  opacity: 0.7;
  pointer-events: none;
}

.flow-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
}

/* Cabecera */

.flow-header {
  max-width: 640px;
  margin-bottom: 3rem;
}

.flow-title {
  font-size: clamp(1.6rem, 1vw + 1.2rem, 2rem);
  margin-bottom: 0.6rem;
  background: linear-gradient(115deg, #ffffff, #d7e2ff 45%, #8fb9ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

.flow-subtitle {
  font-size: 0.96rem;
  line-height: 1.7;
  color: rgba(215, 226, 255, 0.9);
}

/* Timeline */

.flow-timeline {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.8rem;
  margin-top: 0.5rem;
}

/* Línea vertical central (desktop) */

.flow-line {
  position: absolute;
  top: 0.5rem;
  bottom: 0.5rem;
  left: 26px;
  width: 2px;
  border-radius: 999px;
  background: linear-gradient(
    to bottom,
    rgba(143, 185, 255, 0.15),
    rgba(143, 185, 255, 0.8),
    rgba(143, 185, 255, 0.15)
  );
  opacity: 0.8;
}

/* Paso */

.flow-step {
  position: relative;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 1rem;
  align-items: flex-start;
}

/* Icono / número */

.flow-step-icon {
  position: relative;
  width: 52px;
  height: 52px;
  border-radius: 999px;
  border: 1px solid rgba(150, 190, 255, 0.8);
  background: radial-gradient(circle at 30% 20%, #ffffff, #dbe5ff);
  box-shadow:
    0 0 16px rgba(145, 190, 255, 0.7),
    0 12px 24px rgba(0, 0, 0, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.flow-step-number {
  font-size: 0.9rem;
  font-weight: 700;
  color: #0c1230;
}

/* Contenido del paso */

.flow-step-content {
  padding: 1rem 1.3rem;
  border-radius: 1.1rem;
  background: radial-gradient(circle at top left, rgba(134, 178, 255, 0.16), rgba(9, 12, 30, 0.96));
  border: 1px solid rgba(135, 176, 255, 0.55);
  box-shadow:
    0 14px 34px rgba(0, 0, 0, 0.75),
    0 0 0 1px rgba(100, 150, 235, 0.2);
}

.flow-step-title {
  font-size: 0.98rem;
  margin-bottom: 0.5rem;
  color: #f6f7ff;
  font-weight: 600;
}

.flow-step-text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(209, 223, 255, 0.9);
}

/* Hover ligero en el contenido */

.flow-step-content {
  transition:
    transform 220ms ease-out,
    box-shadow 220ms ease-out,
    border-color 220ms ease-out;
}

.flow-step:hover .flow-step-content {
  transform: translateY(-4px);
  box-shadow:
    0 20px 46px rgba(0, 0, 0, 0.9),
    0 0 0 1px rgba(170, 210, 255, 0.7);
  border-color: rgba(185, 220, 255, 0.95);
}

/* Responsive */

@media (max-width: 720px) {
  #readers-flow {
    padding: 3.8rem 6vw 4.4rem;
  }

  .flow-line {
    left: 22px;
  }

  .flow-step-content {
    padding: 0.9rem 1.1rem;
  }

  .flow-step-text {
    font-size: 0.88rem;
  }
}

@media (max-width: 520px) {
  .flow-step {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 0.8rem;
  }

  .flow-step-icon {
    width: 46px;
    height: 46px;
  }

  .flow-step-content {
    padding: 0.85rem 1rem;
  }
}
/* Sesión 6: readers-usecases */
#readers-usecases {
  position: relative;
  padding: 4.4rem 8vw 4.8rem;
  background: linear-gradient(150deg, #f5f7ff 0%, #eef2ff 40%, #ffffff 100%);
  color: #0e1424;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

/* Fondo suave con patrón en malla */
#readers-usecases::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(120, 150, 230, 0.16) 1px, transparent 0);
  background-size: 34px 34px;
  opacity: 0.26;
  pointer-events: none;
}

.usecases-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
}

/* Cabecera */

.usecases-header {
  max-width: 640px;
  margin-bottom: 2.8rem;
}

.usecases-title {
  font-size: clamp(1.6rem, 1vw + 1.2rem, 2rem);
  margin-bottom: 0.6rem;
  background: linear-gradient(120deg, #10152a, #3b4f96 40%, #6c3fd0);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

.usecases-subtitle {
  font-size: 0.98rem;
  line-height: 1.7;
  color: #2b3450;
}

/* Grid de escenarios */

.usecases-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.6rem;
}

/* Tarjetas */

.usecase-card {
  position: relative;
  border-radius: 1.5rem;
  padding: 1.6rem 1.6rem 1.8rem;
  background: #ffffff;
  border: 1px solid rgba(80, 115, 200, 0.16);
  box-shadow:
    0 12px 26px rgba(18, 26, 60, 0.08),
    0 0 0 1px rgba(80, 120, 220, 0.06);
  overflow: hidden;
}

/* Variaciones de borde/fondo por escenario */

.usecase-casual {
  background: radial-gradient(circle at top left, rgba(140, 180, 255, 0.12), #ffffff);
}

.usecase-advanced {
  background: radial-gradient(circle at top center, rgba(180, 140, 255, 0.12), #ffffff);
}

.usecase-tech {
  background: radial-gradient(circle at top right, rgba(120, 210, 255, 0.12), #ffffff);
}

/* Encabezado de tarjeta */

.usecase-head {
  margin-bottom: 1rem;
}

.usecase-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding: 0.28rem 0.8rem;
  border-radius: 999px;
  background: rgba(230, 236, 255, 0.9);
  border: 1px solid rgba(120, 150, 230, 0.6);
  color: #1b2340;
  margin-bottom: 0.55rem;
}

.usecase-title {
  font-size: 1.02rem;
  margin-bottom: 0.25rem;
  color: #11162a;
  font-weight: 600;
}

.usecase-role {
  font-size: 0.9rem;
  color: #3a4460;
}

/* Lista de funciones usadas */

.usecase-list {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.usecase-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  font-size: 0.9rem;
  line-height: 1.55;
  color: #343d57;
}

.usecase-dot {
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #ffffff, #8eaaff);
  margin-top: 0.4rem;
}

/* Resultado */

.usecase-result {
  font-size: 0.9rem;
  line-height: 1.55;
  color: #202740;
  margin-top: 0.2rem;
  border-top: 1px dashed rgba(110, 140, 220, 0.35);
  padding-top: 0.7rem;
  font-weight: 500;
}

/* Hover */

.usecase-card {
  transition:
    transform 220ms ease-out,
    box-shadow 220ms ease-out,
    border-color 220ms ease-out;
}

.usecase-card:hover {
  transform: translateY(-5px);
  box-shadow:
    0 18px 40px rgba(16, 24, 55, 0.14),
    0 0 0 1px rgba(110, 150, 235, 0.45);
  border-color: rgba(110, 150, 235, 0.7);
}

/* Responsive */

@media (max-width: 980px) {
  .usecases-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  #readers-usecases {
    padding: 3.8rem 6vw 4.2rem;
  }

  .usecases-grid {
    grid-template-columns: 1fr;
  }

  .usecase-card {
    padding: 1.4rem 1.4rem 1.7rem;
  }

  .usecase-result,
  .usecase-list li {
    font-size: 0.88rem;
  }
}
/* Sesión 7: readers-ecosystem */
#readers-ecosystem {
  position: relative;
  padding: 4.5rem 8vw 5rem;
  background: linear-gradient(160deg, #060917 0%, #050815 40%, #040613 100%);
  color: #f5f7ff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

/* Fondo con orbes suaves */
#readers-ecosystem::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 18% 20%, rgba(130, 175, 255, 0.22), transparent 60%),
    radial-gradient(circle at 82% 80%, rgba(185, 120, 255, 0.22), transparent 60%);
  opacity: 0.7;
  pointer-events: none;
}

.eco-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
}

/* Cabecera */

.eco-header {
  max-width: 700px;
  margin-bottom: 3rem;
}

.eco-title {
  font-size: clamp(1.6rem, 1vw + 1.3rem, 2rem);
  margin-bottom: 0.6rem;
  background: linear-gradient(115deg, #ffffff, #d7e2ff 45%, #8fb9ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

.eco-subtitle {
  font-size: 0.97rem;
  line-height: 1.65;
  color: rgba(216, 228, 255, 0.9);
}

/* Diagrama */

.eco-diagram {
  position: relative;
  margin-top: 2.8rem;
  width: 100%;
  max-width: 780px;
  height: 360px;
  margin-left: auto;
  margin-right: auto;
}

/* Nodo central */

.eco-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 130px;
  height: 130px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.eco-center-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid rgba(150, 190, 255, 0.5);
  box-shadow: 0 0 18px rgba(150, 190, 255, 0.35);
}

.eco-center-dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #ffffff, #b7ccff);
  box-shadow: 0 0 12px rgba(180, 210, 255, 0.6);
}

.eco-center-label {
  margin-top: 0.7rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #f2f4ff;
}

/* Nodos externos */

.eco-node {
  position: absolute;
  width: 200px;
  text-align: center;
}

.eco-node .eco-node-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  margin: 0 auto 0.5rem;
  background: radial-gradient(circle at 30% 30%, #ffffff, #8fbaff);
  box-shadow: 0 0 11px rgba(180, 200, 255, 0.5);
}

.eco-node-text {
  font-size: 0.88rem;
  line-height: 1.45;
  color: rgba(216, 228, 255, 0.92);
}

/* Posiciones de nodos */

.eco-node-1 { top: 0; left: 50%; transform: translateX(-50%); }
.eco-node-2 { top: 50%; left: 0; transform: translateY(-50%); }
.eco-node-3 { top: 50%; right: 0; transform: translateY(-50%); }
.eco-node-4 { bottom: 0; left: 50%; transform: translateX(-50%); }

/* Líneas de conexión */

.eco-line {
  position: absolute;
  width: 2px;
  background: rgba(150, 190, 255, 0.5);
  box-shadow: 0 0 10px rgba(150, 190, 255, 0.4);
}

.eco-line-1 {
  top: 65px;
  bottom: 50%;
  left: 50%;
  transform: translateX(-1px);
}

.eco-line-2 {
  top: 50%;
  bottom: 50%;
  left: calc(50% - 150px);
  transform: rotate(90deg);
}

.eco-line-3 {
  top: 50%;
  bottom: 50%;
  right: calc(50% - 150px);
  transform: rotate(90deg);
}

.eco-line-4 {
  top: 50%;
  bottom: 65px;
  left: 50%;
  transform: translateX(-1px);
}

/* Hover (sutil, elegante) */

.eco-node,
.eco-center {
  transition:
    transform 230ms ease-out,
    box-shadow 230ms ease-out;
}

.eco-node:hover,
.eco-center:hover {
  transform: scale(1.05) translate(-50%, -50%);
  box-shadow: 0 0 22px rgba(180, 210, 255, 0.7);
}

/* Responsive */

@media (max-width: 780px) {
  .eco-diagram {
    height: auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.6rem;
  }

  .eco-center {
    position: relative;
    left: auto;
    top: auto;
    transform: none;
    margin: 0 auto;
  }

  .eco-node {
    position: relative;
    left: auto;
    right: auto;
    top: auto;
    bottom: auto;
    transform: none;
    margin: 0 auto;
  }

  .eco-line {
    display: none;
  }
}

@media (max-width: 520px) {
  .eco-node-text {
    font-size: 0.84rem;
  }

  .eco-center-label {
    font-size: 0.86rem;
  }
}
/* Sesión 8: readers-comparison */
#readers-comparison {
  position: relative;
  padding: 4.6rem 8vw 5rem;
  background: linear-gradient(150deg, #fafbff 0%, #f2f4ff 45%, #ffffff 100%);
  color: #0e1424;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

/* Fondo suave */
#readers-comparison::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 0 0, rgba(140, 170, 255, 0.16) 1px, transparent 0),
    radial-gradient(circle at 100% 100%, rgba(160, 130, 255, 0.16) 1px, transparent 0);
  background-size: 40px 40px;
  opacity: 0.25;
  pointer-events: none;
}

.comp-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
}

/* Cabecera */
.comp-header {
  max-width: 700px;
  margin-bottom: 3rem;
}

.comp-title {
  font-size: clamp(1.6rem, 1vw + 1.3rem, 2rem);
  background: linear-gradient(120deg, #11182d, #3f54a5 40%, #7f45d6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.comp-subtitle {
  font-size: 0.98rem;
  line-height: 1.7;
  color: #2c3550;
}

/* Tabla */

.comp-table-wrapper {
  width: 100%;
  overflow-x: auto;
  border-radius: 1.4rem;
  backdrop-filter: blur(6px);
  background: rgba(255, 255, 255, 0.55);
  padding: 0.6rem;
  border: 1px solid rgba(120, 150, 220, 0.25);
}

.comp-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
}

.comp-table thead tr {
  background: linear-gradient(90deg, #dde5ff, #eef1ff);
}

.comp-table th {
  text-align: left;
  padding: 1rem;
  font-size: 0.92rem;
  color: #11162a;
  font-weight: 700;
  border-bottom: 1px solid rgba(80, 110, 190, 0.25);
}

.comp-table td {
  padding: 0.9rem 1rem;
  font-size: 0.9rem;
  color: #263046;
  border-bottom: 1px solid rgba(140, 160, 210, 0.22);
}

/* Alternancia */
.comp-table tbody tr:nth-child(even) {
  background: rgba(245, 247, 255, 0.75);
}

/* Estados */
.yes {
  font-weight: 600;
  color: #1a7d3d;
}

.no {
  font-weight: 600;
  color: #9c1e1e;
}

/* Hover */
.comp-table tbody tr {
  transition: background 200ms ease-out;
}

.comp-table tbody tr:hover {
  background: rgba(215, 225, 255, 0.85);
}

/* Responsive */

@media (max-width: 720px) {
  #readers-comparison {
    padding: 3.8rem 6vw 4.2rem;
  }

  .comp-table th,
  .comp-table td {
    font-size: 0.86rem;
    padding: 0.8rem;
  }
}
/* Sesión 9: readers-faq */
#readers-faq {
  position: relative;
  padding: 4.5rem 8vw 5rem;
  background: linear-gradient(160deg, #060917 0%, #050815 45%, #040613 100%);
  color: #f5f7ff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

/* Fondo sutil */
#readers-faq::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 15% 10%, rgba(130, 175, 255, 0.22), transparent 60%),
    radial-gradient(circle at 85% 90%, rgba(185, 120, 255, 0.22), transparent 60%);
  opacity: 0.7;
  pointer-events: none;
}

.faq-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
}

/* Cabecera */

.faq-header {
  max-width: 640px;
  margin-bottom: 2.8rem;
}

.faq-title {
  font-size: clamp(1.6rem, 1vw + 1.3rem, 2rem);
  margin-bottom: 0.6rem;
  background: linear-gradient(115deg, #ffffff, #d7e2ff 45%, #8fb9ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

.faq-subtitle {
  font-size: 0.96rem;
  line-height: 1.7;
  color: rgba(215, 227, 255, 0.9);
}

/* Lista FAQ */

.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

/* Item */

.faq-item {
  border-radius: 1.3rem;
  background: radial-gradient(circle at top left, rgba(135, 180, 255, 0.18), rgba(9, 12, 30, 0.98));
  border: 1px solid rgba(135, 176, 255, 0.6);
  box-shadow:
    0 14px 36px rgba(0, 0, 0, 0.9),
    0 0 0 1px rgba(95, 140, 230, 0.3);
  overflow: hidden;
}

/* Summary (pregunta) */

.faq-question {
  list-style: none;
  cursor: pointer;
  padding: 0.95rem 1.2rem;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.8rem;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-q-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: rgba(211, 223, 255, 0.9);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(150, 190, 255, 0.7);
  background: rgba(8, 13, 30, 0.96);
}

.faq-q-text {
  font-size: 0.94rem;
  font-weight: 500;
  color: #f5f7ff;
}

/* Icono toggle */

.faq-toggle {
  position: relative;
  width: 18px;
  height: 18px;
}

.faq-toggle::before,
.faq-toggle::after {
  content: "";
  position: absolute;
  inset: 50%;
  width: 12px;
  height: 2px;
  background: rgba(215, 227, 255, 0.9);
  border-radius: 999px;
  transform: translate(-50%, -50%);
  transition: transform 180ms ease-out, opacity 180ms ease-out;
}

.faq-toggle::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

/* Respuesta */

.faq-answer {
  padding: 0 1.2rem 1.1rem 1.2rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(211, 225, 255, 0.9);
  border-top: 1px solid rgba(115, 155, 235, 0.35);
}

/* Estados abiertos/cerrados */

.faq-item[open] .faq-question {
  background: radial-gradient(circle at top left, rgba(150, 190, 255, 0.22), rgba(9, 12, 30, 0.98));
}

.faq-item[open] .faq-toggle::after {
  transform: translate(-50%, -50%) rotate(0deg);
  opacity: 0;
}

/* Hover */

.faq-question:hover {
  background: radial-gradient(circle at top left, rgba(140, 185, 255, 0.18), rgba(9, 12, 30, 0.98));
}

/* Responsive */

@media (max-width: 720px) {
  #readers-faq {
    padding: 3.8rem 6vw 4.4rem;
  }

  .faq-question {
    grid-template-columns: auto minmax(0, 1fr) auto;
    padding: 0.9rem 1rem;
  }

  .faq-q-text {
    font-size: 0.9rem;
  }

  .faq-answer {
    font-size: 0.88rem;
    padding: 0 1rem 1rem 1rem;
  }
}
/* Sesión 10: readers-cta-final */
#readers-cta-final {
  position: relative;
  padding: 5rem 8vw 5rem;
  background: linear-gradient(170deg, #050711 0%, #070b18 40%, #050711 100%);
  color: #f5f7ff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  overflow: hidden;
}

/* Fondo con orbes suaves */
#readers-cta-final::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 20% 30%, rgba(130, 175, 255, 0.25), transparent 60%),
    radial-gradient(circle at 80% 70%, rgba(185, 120, 255, 0.25), transparent 60%);
  opacity: 0.7;
  pointer-events: none;
}

.cta-shell {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

/* Cabecera */
.cta-header {
  max-width: 740px;
  margin: 0 auto 3rem auto;
}

.cta-title {
  font-size: clamp(1.6rem, 1vw + 1.3rem, 2.2rem);
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 1rem;
  background: linear-gradient(115deg, #ffffff, #d7e2ff 50%, #9ac4ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.cta-subtitle {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(215, 227, 255, 0.9);
}

/* Tarjetas */
.cta-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.8rem;
  margin-top: 2.5rem;
}

.cta-card {
  position: relative;
  border-radius: 1.5rem;
  padding: 1.8rem 1.6rem 2rem;
  background: radial-gradient(circle at top left, rgba(135, 180, 255, 0.18), rgba(12, 16, 35, 0.95));
  border: 1px solid rgba(135, 176, 255, 0.55);
  box-shadow:
    0 16px 40px rgba(0, 0, 0, 0.85),
    0 0 0 1px rgba(100, 150, 235, 0.25);
  overflow: hidden;
  text-align: left;
}

/* Iconos */
.cta-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  border: 1px solid rgba(150, 190, 255, 0.7);
  background: rgba(8, 12, 30, 0.9);
  box-shadow: 0 0 14px rgba(150, 190, 255, 0.4);
  margin-bottom: 1.1rem;
  position: relative;
}

/* Icono 1 (líneas) */
.cta-line {
  position: absolute;
  left: 10px;
  right: 10px;
  height: 2px;
  top: 22px;
  border-radius: 999px;
  background: linear-gradient(90deg, #8ab8ff, #bf9cff);
}
.cta-line.small {
  top: 27px;
  left: 16px;
  right: 16px;
}

/* Icono 2 (puntos) */
.cta-dot {
  position: absolute;
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #ffffff, #9fbaff);
  top: 14px;
  left: 18px;
}
.cta-dot.small {
  top: 26px;
  left: 26px;
  opacity: 0.75;
}

/* Icono 3 (ondas) */
.cta-wave {
  position: absolute;
  left: 10px;
  right: 10px;
  height: 2px;
  background: linear-gradient(90deg, #86b2ff, #c18aff);
  border-radius: 999px;
}
.cta-wave.w1 { top: 18px; }
.cta-wave.w2 { top: 28px; width: 70%; left: 15px; }

/* Texto */
.cta-card-title {
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
  color: #ffffff;
  font-weight: 600;
}

.cta-card-text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(210, 223, 255, 0.9);
}

/* Hover */
.cta-card {
  transition:
    transform 220ms ease-out,
    box-shadow 220ms ease-out,
    border-color 220ms ease-out;
}

.cta-card:hover {
  transform: translateY(-6px);
  box-shadow:
    0 22px 50px rgba(0, 0, 0, 0.95),
    0 0 0 1px rgba(180, 220, 255, 0.8);
  border-color: rgba(190, 220, 255, 0.95);
}

/* Responsive */
@media (max-width: 900px) {
  .cta-options {
    grid-template-columns: 1fr;
  }

  .cta-card {
    text-align: left;
  }
}
/* Sesión 11: readers-reservation */
#readers-reservation {
  position: relative;
  padding: 4.8rem 8vw 5rem;
  background: linear-gradient(180deg, #ffffff 0%, #eef2ff 45%, #e7ecff 100%);
  color: #0d1328;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  text-align: center;
  overflow: hidden;
}

/* Fondo con ondas suaves */
#readers-reservation::before {
  content: "";
  position: absolute;
  inset: -25%;
  background:
    radial-gradient(circle at 20% 20%, rgba(120, 150, 255, 0.24), transparent 55%),
    radial-gradient(circle at 80% 80%, rgba(160, 120, 255, 0.24), transparent 55%);
  opacity: 0.55;
  pointer-events: none;
}

.reserve-shell {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
}

.reserve-title {
  font-size: clamp(1.8rem, 1vw + 1.4rem, 2.4rem);
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(115deg, #10162d, #3a4f9d 45%, #6c3fd0);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.reserve-subtitle {
  font-size: 1rem;
  color: #2e3455;
  margin-bottom: 2.4rem;
  line-height: 1.65;
}

/* Botón */
.reserve-button {
  display: inline-block;
  padding: 0.95rem 2.3rem;
  border-radius: 14px;
  font-size: 0.98rem;
  font-weight: 600;
  text-decoration: none;
  color: #ffffff;
  background: linear-gradient(135deg, #566bff, #7d4dff);
  box-shadow:
    0 10px 22px rgba(80, 100, 255, 0.25),
    0 0 0 1px rgba(100, 120, 255, 0.35);
  transition:
    transform 200ms ease-out,
    box-shadow 200ms ease-out;
}

.reserve-button:hover {
  transform: translateY(-4px);
  box-shadow:
    0 16px 26px rgba(80, 100, 255, 0.35),
    0 0 0 1px rgba(150, 170, 255, 0.5);
}

.reserve-button:active {
  transform: translateY(-1px);
}