:root {
  --bg-dark-1: #0d1526;
  --bg-dark-2: #1b2735;
  --bg-card: #111a2e;
  --bg-card-2: #0f1624;

  --text-white: #ffffff;
  --text-muted: #b8c0d9;

  --accent-orange: #f7931a;
  --accent-green: #00c853;
  --accent-red: #d50000;

  --radius: 18px;
  --shadow-strong: 0 18px 40px rgba(0,0,0,0.35);
  --shadow-soft: 0 10px 25px rgba(0,0,0,0.15);

  --transition: 0.25s ease-out;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Open Sans", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: linear-gradient(135deg, var(--bg-dark-1), var(--bg-dark-2));
  color: var(--text-white);
}

/* HEADER */

.main-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 4vw;
  background: rgba(5, 8, 20, 0.95);
  backdrop-filter: blur(10px);
  color: #fff;
}

.logo {
  font-weight: 600;
  font-size: 0.95rem;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.main-nav a {
  color: #ffffff;
  text-decoration: none;
  font-size: 0.9rem;
  position: relative;
  padding-bottom: 2px;
  transition: color var(--transition);
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent-orange);
  transition: width var(--transition);
}

.main-nav a:hover {
  color: var(--accent-orange);
}

.main-nav a:hover::after {
  width: 100%;
}

/* SECCIONES GENERALES */

.section {
  padding: 6rem 8vw;
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: 2.4rem;
  margin: 0 0 1rem;
  color: #ffffff;
}

.section-subtitle {
  margin: 0 0 2rem;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
}

.body-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0 0 1rem;
}

.center {
  text-align: center;
}

/* LAYOUTS */

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

/* IMÁGENES */

.big-img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-strong);
  display: block;
}

/* BOTONES */

.btn {
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.9rem 2rem;
  border-radius: 999px;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), color var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  font-weight: 600;
}

.btn-white {
  background-color: #ffffff;
  color: var(--bg-dark-1);
  box-shadow: var(--shadow-soft);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-strong);
}

.btn-outline {
  background-color: transparent;
  color: #ffffff;
  border: 2px solid #ffffff;
}

.btn-outline:hover {
  background-color: #ffffff;
  color: var(--bg-dark-1);
}

.full-width {
  width: 100%;
}

/* TARJETAS OSCURAS */

.dark-card {
  background-color: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow-strong);
}

/* HERO */

.hero-section {
  padding-top: 6rem;
}

.hero-tag {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0 0 0.5rem;
}

.hero-title {
  font-size: 2.8rem;
  margin: 0 0 0.75rem;
}

.hero-subtitle {
  margin: 0 0 1.5rem;
  font-size: 1rem;
  color: var(--text-muted);
}

.hero-footnote {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* CONFIAR */

.confiar-section {
  background: radial-gradient(circle at top left, var(--bg-dark-2), var(--bg-dark-1));
}

/* CURSOS */

.cursos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.curso-card {
  text-align: center;
}

.curso-card h3 {
  margin: 1rem 0 0.5rem;
}

.curso-card p {
  margin: 0 0 1rem;
  color: var(--text-muted);
}

.curso-icon {
  width: 80px;
  height: 80px;
  object-fit: contain;
}

.cursos-actions {
  margin-top: 2.5rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* SIMULADOR */

.simulador-section .simulator-panel {
  margin-top: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
  color: var(--text-muted);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-family: inherit;
  font-size: 0.9rem;
  background-color: var(--bg-card-2);
  color: #ffffff;
}

.form-group input::placeholder {
  color: #7f8aa8;
}

.simulator-result {
  margin-top: 1.25rem;
  padding: 0.9rem 1rem;
  border-radius: 10px;
  background-color: var(--bg-card-2);
  font-size: 0.9rem;
}

.simulator-result span {
  font-weight: 600;
}

.simulator-note {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* PRECIO */

.price-card {
  margin-top: 1rem;
}

.price-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.price-label {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.price-value,
.price-change {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.price-source {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.price-message {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* INFLACIÓN */

.inflacion-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.inflacion-card h3 {
  margin: 0 0 0.5rem;
}

.inflacion-card p {
  margin: 0;
  color: var(--text-muted);
}

/* HISTORIAS */

.historias-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.historia-item h3 {
  margin: 0 0 0.5rem;
}

.historia-item p {
  margin: 0 0 0.75rem;
  color: var(--text-muted);
}

/* CIERRE */

.cierre-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  color: var(--text-muted);
}

.cierre-list li {
  margin-bottom: 0.35rem;
}

.cierre-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1rem 0 1.5rem;
}

.cierre-footnote {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* FOOTER */

.main-footer {
  padding: 1.5rem 8vw;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  background-color: #050814;
}

/* ANIMACIONES SCROLL */

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  filter: blur(4px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out, filter 0.6s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* RESPONSIVE */

@media (max-width: 900px) {
  .two-col {
    grid-template-columns: minmax(0, 1fr);
    text-align: center;
  }

  .cierre-actions {
    justify-content: center;
  }

  .main-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

@media (max-width: 600px) {
  .section {
    padding: 4rem 6vw;
  }

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

  .hero-title {
    font-size: 2.2rem;
  }
}
.big-chart {
  width: 100%;
  max-width: 900px;
  height: 350px;              /* altura fija y razonable */
  margin: 2rem auto;
  display: block;

  background: #000;
  border-radius: 16px;
  padding: 1rem;

  box-shadow: 0 15px 35px rgba(0,0,0,0.45);
  border: 1px solid rgba(255,255,255,0.08);

  /* ESTA LÍNEA ES LA QUE EVITA QUE SE HAGA GIGANTE */
  box-sizing: border-box;
}
.big-chart {
  width: 100%;
  max-width: 700px;
  height: 380px;
  margin-top: 2rem;
  background: #0f1624; /* negro azulado */
  border-radius: 18px;
  padding: 1rem;
  box-shadow: 0 18px 40px rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.08);
}
.btn {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 15px rgba(0,0,0,0.25);
}

.pregunta {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.pregunta:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}
#barra-progreso {
  width: 100%;
  background: rgba(255,255,255,0.1);
  border-radius: 10px;
  margin: 1rem 0;
  height: 12px;
}
#progreso {
  height: 12px;
  width: 0%;
  background: var(--accent-green);
  border-radius: 10px;
  transition: width 0.5s ease;
}
.btn {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 15px rgba(0,0,0,0.25);
}

.curso-modulo {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.curso-modulo:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}
.historia-item {
  padding: 1.5rem;
  border-radius: 14px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.historia-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}

.historia-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}
.infografia-grid {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-top: 2rem;
}

.infografia-card {
  flex: 1;
  background: var(--bg-card-2);
  padding: 1.5rem;
  border-radius: 14px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.infografia-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}

.infografia-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}
.comparacion-img {
  max-width: 600px;
  margin: 2rem auto;
  display: block;
  border-radius: 14px;
  box-shadow: var(--shadow-strong);
}