/* ============================================
   Aprende LSM — estilos generales
   ============================================ */

:root{
  --orange: #FF7A1A;
  --orange-dark: #E85D04;
  --yellow: #FFB800;
  --green: #22C55E;
  --blue: #1F9BE0;
  --blue-dark: #0E7FC0;
  --purple: #7C5CFC;

  --ink: #1E2430;
  --ink-soft: #4A5468;
  --muted: #7A8499;
  --bg: #FFFFFF;
  --bg-alt: #FBF7F1;
  --line: #ECE7DE;

  --gradient-brand: linear-gradient(120deg, var(--orange) 0%, var(--yellow) 30%, var(--green) 60%, var(--blue) 85%);
  --gradient-warm: linear-gradient(120deg, var(--orange) 0%, var(--yellow) 100%);

  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --shadow-sm: 0 4px 14px rgba(30,36,48,.06);
  --shadow-md: 0 14px 34px rgba(30,36,48,.10);
  --shadow-lg: 0 24px 60px rgba(30,36,48,.14);

  --container: 1180px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: "Nunito", system-ui, -apple-system, Segoe UI, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4{
  font-family: "Baloo 2", "Nunito", sans-serif;
  line-height: 1.2;
  margin: 0 0 .5em;
  color: var(--ink);
}
p{ margin: 0 0 1em; color: var(--ink-soft); }
a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; display:block; }
ul{ list-style:none; margin:0; padding:0; }

.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow{ max-width: 820px; }

.text-gradient{
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow{
  display:inline-block;
  font-weight: 800;
  font-size: .8rem;
  letter-spacing: .03em;
  text-transform: uppercase;
  color: var(--orange-dark);
  background: rgba(255,122,26,.1);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 800;
  font-size: .95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-2px); }
.btn-primary{
  background: var(--gradient-warm);
  color: #fff;
  box-shadow: 0 10px 24px rgba(255,122,26,.35);
}
.btn-primary:hover{ box-shadow: 0 14px 30px rgba(255,122,26,.45); }
.btn-outline{
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}
.btn-outline:hover{ border-color: var(--orange); color: var(--orange-dark); }
.btn-ghost{
  background: transparent;
  color: var(--ink-soft);
}
.btn-ghost:hover{ color: var(--orange-dark); }
.btn-white{
  background: #fff;
  color: var(--orange-dark);
}
.btn-lg{ padding: 15px 30px; font-size: 1.05rem; }
.btn-block{ width: 100%; }

/* ============================================
   HEADER
   ============================================ */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand-logo{ width: 40px; height: 40px; object-fit: contain; }
.brand-name{ font-family:"Baloo 2",sans-serif; font-weight:700; font-size:1.25rem; color: var(--ink); }
.brand-name strong{ color: var(--orange-dark); }

.main-nav{ display:flex; align-items:center; gap: 28px; }
.main-nav a{ font-weight: 700; color: var(--ink-soft); font-size:.95rem; }
.main-nav a:hover{ color: var(--orange-dark); }

.header-actions{ display:flex; align-items:center; gap: 10px; }

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor:pointer;
}
.nav-toggle span{ display:block; height:3px; border-radius:2px; background: var(--ink); }

/* ============================================
   HERO
   ============================================ */
.hero{
  position: relative;
  overflow: hidden;
  padding: 70px 0 40px;
}
.hero-blob{
  position:absolute;
  border-radius:50%;
  filter: blur(10px);
  opacity:.25;
  z-index:0;
}
.blob-1{
  width: 480px; height: 480px;
  background: var(--gradient-warm);
  top: -180px; right: -140px;
}
.blob-2{
  width: 360px; height: 360px;
  background: var(--blue);
  bottom: -160px; left: -120px;
  opacity:.18;
}
.hero-inner{
  position: relative;
  z-index: 1;
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 50px;
  align-items:center;
}
.hero-copy h1{
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  margin-bottom: .4em;
}
.hero-lead{
  font-size: 1.1rem;
  max-width: 520px;
}
.hero-cta{ display:flex; gap: 14px; flex-wrap: wrap; margin: 26px 0 36px; }

.hero-stats{
  display:flex;
  gap: 34px;
  flex-wrap: wrap;
}
.stat strong{
  display:block;
  font-family:"Baloo 2",sans-serif;
  font-size: 1.5rem;
  color: var(--orange-dark);
}
.stat span{ font-size: .85rem; color: var(--muted); font-weight:700; }

.hero-media{ position: relative; display:flex; justify-content:center; }
.hero-media-card{
  position: relative;
  background: linear-gradient(160deg, #FFF6E9 0%, #EAF6FF 100%);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-lg);
  max-width: 460px;
}
.hero-characters{ width: 100%; height: auto; }

.floating-chip{
  position:absolute;
  background:#fff;
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 800;
  font-size: .85rem;
  box-shadow: var(--shadow-md);
}
.chip-1{ top: 14px; left: -10px; color: var(--orange-dark); }
.chip-2{ bottom: 24px; right: -14px; color: var(--blue-dark); }

/* ---------- Trust bar ---------- */
.trust-bar{ padding: 30px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.trust-inner{ text-align:center; }
.trust-inner p{ font-weight:800; font-size:.8rem; text-transform:uppercase; letter-spacing:.04em; color: var(--muted); margin-bottom: 16px; }
.trust-tags{ display:flex; flex-wrap:wrap; gap: 10px 26px; justify-content:center; }
.trust-tags span{ font-weight:700; color: var(--ink-soft); font-size:.95rem; }

/* ============================================
   SECTIONS (general)
   ============================================ */
.section{ padding: 90px 0; }
.section-alt{ background: var(--bg-alt); }
.section-head{ max-width: 680px; margin: 0 auto 50px; text-align:center; }
.section-head p{ font-size: 1.05rem; }

/* ---------- Feature grid ---------- */
.feature-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card{
  background:#fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.feature-card:hover{ transform: translateY(-6px); box-shadow: var(--shadow-md); }
.feature-icon{
  width: 54px; height: 54px;
  border-radius: 16px;
  display:flex; align-items:center; justify-content:center;
  font-size: 1.5rem;
  margin-bottom: 18px;
}
.icon-orange{ background: rgba(255,122,26,.12); }
.icon-blue{ background: rgba(31,155,224,.12); }
.icon-green{ background: rgba(34,197,94,.12); }
.icon-purple{ background: rgba(124,92,252,.12); }
.feature-card h3{ font-size: 1.15rem; }
.feature-card p{ font-size: .95rem; margin: 0; }

/* ---------- Courses ---------- */
.course-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.course-card{
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  overflow: hidden;
  display:flex;
  flex-direction: column;
  transition: transform .2s ease, box-shadow .2s ease;
}
.course-card:hover{ transform: translateY(-6px); box-shadow: var(--shadow-md); }
.course-card.featured{ border-color: var(--orange); box-shadow: var(--shadow-md); }
.course-banner{
  padding: 34px 24px 46px;
  color:#fff;
  font-weight: 800;
  font-size: 1.05rem;
}
.banner-orange{ background: linear-gradient(120deg, var(--orange), var(--yellow)); }
.banner-blue{ background: linear-gradient(120deg, var(--blue), #5AD1FF); }
.banner-green{ background: linear-gradient(120deg, var(--green), #7BE0A3); }
.banner-purple{ background: linear-gradient(120deg, var(--purple), #B39BFF); }
.course-body{ padding: 22px 24px 26px; margin-top:-24px; background:#fff; border-radius: 20px 20px 0 0; flex:1; display:flex; flex-direction:column; }
.course-body h3{ font-size: 1.2rem; }
.course-body p{ font-size: .92rem; flex:1; }
.course-meta{ display:flex; flex-direction:column; gap:6px; margin: 14px 0 20px; font-size:.88rem; font-weight:700; color: var(--ink-soft); }

/* ---------- Steps ---------- */
.steps-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}
.step-card{
  text-align:center;
  padding: 30px 20px;
  position: relative;
}
.step-number{
  width: 52px; height: 52px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color:#fff;
  font-family:"Baloo 2",sans-serif;
  font-weight:700;
  font-size: 1.3rem;
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 10px 22px rgba(255,122,26,.3);
}
.step-card h3{ font-size: 1.1rem; }
.step-card p{ font-size: .92rem; }

/* ---------- Testimonials ---------- */
.testimonial-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card{
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 28px;
  margin:0;
}
.testimonial-card blockquote{
  margin: 0 0 20px;
  font-size: .98rem;
  color: var(--ink-soft);
  font-style: italic;
}
.testimonial-card figcaption{ display:flex; align-items:center; gap: 12px; }
.testimonial-card figcaption strong{ display:block; font-size:.92rem; }
.testimonial-card figcaption span{ font-size:.8rem; color: var(--muted); font-weight:700; }
.avatar{
  width: 42px; height: 42px;
  border-radius: 50%;
  display:flex; align-items:center; justify-content:center;
  font-weight:800; color:#fff; font-size:.85rem;
  flex-shrink:0;
}
.avatar-orange{ background: var(--orange); }
.avatar-blue{ background: var(--blue); }
.avatar-green{ background: var(--green); }

/* ---------- Pricing ---------- */
.pricing-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.price-card{
  position: relative;
  background:#fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 34px 28px;
  display:flex;
  flex-direction:column;
}
.price-card.featured{
  border-color: var(--orange);
  box-shadow: var(--shadow-lg);
  transform: scale(1.03);
}
.price-tag{
  position:absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-warm);
  color:#fff;
  font-size: .75rem;
  font-weight:800;
  padding: 6px 16px;
  border-radius: 999px;
  white-space:nowrap;
}
.price-card h3{ font-size: 1.2rem; }
.price{ font-family:"Baloo 2",sans-serif; font-size: 2.4rem; color: var(--orange-dark); margin-bottom: 20px; }
.price span{ font-size: 1rem; color: var(--muted); font-weight:700; }
.price-list{ display:flex; flex-direction:column; gap: 10px; margin-bottom: 26px; flex:1; }
.price-list li{ font-size:.92rem; color: var(--ink-soft); font-weight:600; }

/* ---------- FAQ ---------- */
.faq-list{ display:flex; flex-direction:column; gap: 14px; }
.faq-item{
  background:#fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
}
.faq-item summary{
  cursor:pointer;
  font-weight: 800;
  font-size: 1rem;
  list-style: none;
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{
  content: "+";
  font-size: 1.4rem;
  color: var(--orange-dark);
  margin-left: 12px;
  transition: transform .2s ease;
}
.faq-item[open] summary::after{ transform: rotate(45deg); }
.faq-item p{ margin-top: 14px; margin-bottom: 0; font-size: .95rem; }

/* ---------- CTA banner ---------- */
.cta-banner{
  background: var(--gradient-brand);
  padding: 70px 0;
}
.cta-inner{ text-align:center; max-width: 640px; }
.cta-logo{ width: 64px; height:64px; margin: 0 auto 20px; filter: drop-shadow(0 6px 14px rgba(0,0,0,.15)); }
.cta-banner h2{ color:#fff; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.cta-banner p{ color: rgba(255,255,255,.92); font-size: 1.05rem; margin-bottom: 26px; }

/* ============================================
   FOOTER
   ============================================ */
.site-footer{ background: var(--ink); color: #C7CEDB; padding: 70px 0 0; }
.footer-grid{
  display:grid;
  grid-template-columns: 1.3fr .7fr .7fr .7fr 1fr;
  gap: 32px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand .brand-name{ color:#fff; }
.footer-brand .brand-name strong{ color: var(--yellow); }
.footer-brand p{ color: #9AA4B8; font-size: .92rem; margin: 16px 0 20px; max-width: 320px; }
.social-links{ display:flex; gap: 12px; }
.social-links a{
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  display:flex; align-items:center; justify-content:center;
  font-size: 1rem;
}
.social-links a:hover{ background: var(--orange); }

.footer-col h4{ color:#fff; font-size: .95rem; margin-bottom: 18px; }
.footer-col a{ display:block; color: #9AA4B8; font-size: .92rem; margin-bottom: 12px; font-weight:600; }
.footer-col a:hover{ color: var(--yellow); }

.newsletter-form{ display:flex; gap: 10px; margin-top: 6px; }
.newsletter-form input{
  flex:1;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.15);
  background: rgba(255,255,255,.06);
  color: #fff;
  font-family: inherit;
  font-size: .9rem;
}
.newsletter-form input::placeholder{ color: #7A8499; }
.newsletter-form .btn{ padding: 12px 20px; font-size: .85rem; white-space: nowrap; }

.footer-bottom{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap: 10px;
  padding: 24px;
  font-size: .82rem;
  color: #7A8499;
}

/* ---------- Back to top ---------- */
.back-to-top{
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: none;
  background: var(--gradient-warm);
  color: #fff;
  font-size: 1.2rem;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all .25s ease;
  z-index: 90;
}
.back-to-top.visible{ opacity:1; visibility: visible; transform: translateY(0); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px){
  .feature-grid, .course-grid{ grid-template-columns: repeat(2, 1fr); }
  .steps-grid{ grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid, .pricing-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .footer-brand{ grid-column: 1 / -1; }
  .hero-inner{ grid-template-columns: 1fr; }
  .hero-media{ order: -1; }
  .price-card.featured{ transform: none; }
}

@media (max-width: 760px){
  .main-nav{
    position:absolute;
    top: 100%; left:0; right:0;
    background:#fff;
    border-bottom: 1px solid var(--line);
    flex-direction:column;
    align-items:flex-start;
    padding: 20px 24px;
    gap: 16px;
    display:none;
  }
  .main-nav.open{ display:flex; }
  .nav-toggle{ display:flex; }
  .header-actions .btn-ghost{ display:none; }
  .feature-grid, .course-grid, .steps-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; }
  .hero-cta{ flex-direction:column; align-items:stretch; }
  .hero-cta .btn{ width:100%; }
  .hero-stats{ gap: 22px; }
}