*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #ffffff;
  --bg-2:        #f4f7fb;
  --bg-3:        #eaf0f8;
  --bg-card:     #ffffff;
  --text:        #1a2636;
  --text-muted:  #6b7d92;
  --text-mid:    #3d5168;
  --accent:      #84A0C6;
  --accent-dark: #6585ad;
  --accent-light:#b3c7e0;
  --border:      rgba(132,160,198,.18);
  --border-2:    rgba(132,160,198,.35);
  --radius:      14px;
  --radius-sm:   9px;
  --radius-lg:   24px;
  --ease:        cubic-bezier(.4,0,.2,1);
  --ease-spring: cubic-bezier(.34,1.56,.64,1);
  --shadow:      0 4px 32px rgba(132,160,198,.18);
  --shadow-card: 0 2px 18px rgba(132,160,198,.13);
  --font-head:   'Cormorant Garamond', Georgia, serif;
  --font-body:   'DM Sans', system-ui, sans-serif;
  --container:   1400px;
}

html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--font-body); font-size: 15px; line-height: 1.65; overflow-x: hidden; }
img  { max-width: 100%; display: block; }
a    { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul   { list-style: none; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 2rem; }

.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .8rem 2rem; border-radius: var(--radius-sm);
  background: var(--accent); color: #ffffff;
  font-weight: 600; font-size: .9rem; letter-spacing: .02em;
  transition: background .2s var(--ease), transform .18s var(--ease), box-shadow .2s;
}
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(132,160,198,.35); }
.btn-primary:active { transform: translateY(0); }
.btn-primary.btn-full { width: 100%; }

.btn-ghost {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .8rem 2rem; border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-2); color: var(--text);
  font-weight: 500; font-size: .9rem;
  transition: border-color .2s, color .2s, background .2s;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.btn-ghost-sm {
  display: block; width: 100%; padding: .65rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border); color: var(--text-muted); font-size: .85rem;
  transition: color .2s, border-color .2s;
}
.btn-ghost-sm:hover { color: var(--text); border-color: var(--border-2); }

.section-title { font-family: var(--font-head); font-size: clamp(1.8rem,3vw,2.4rem); font-weight: 500; letter-spacing: -.01em; }

.free-shipping-banner {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: var(--accent); color: #ffffff;
  text-align: center; padding: .45rem 1rem; font-size: .82rem; font-weight: 600;
}
.free-shipping-banner + .site-header { margin-top: 0; }

.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  padding: 5px 0; height: auto;
  background: rgba(255,255,255,.92); backdrop-filter: blur(14px);
  box-shadow: 0 1px 12px rgba(132,160,198,.12);
  border-bottom: 1px solid var(--border);
  transform: translateY(-110%);
  transition: transform .35s var(--ease), background .3s;
}
.site-header.visible { transform: translateY(0); }
.site-header.banner-offset { top: 32px; }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav-logo img { height: 54px; width: auto; }
.nav-links { display: flex; gap: 1.75rem; margin: 0 auto; }
.nav-links a { font-size: .88rem; font-weight: 500; color: var(--text-mid); transition: color .2s; }
.nav-links a:hover { color: var(--accent); }

.nav-actions { display: flex; align-items: center; gap: 1.1rem; }
.account-btn { display: flex; color: var(--text); padding: .5rem; transition: color .2s; }
.account-btn:hover { color: var(--accent); }

.cart-btn { position: relative; color: var(--text); padding: .5rem; transition: color .2s; }
.cart-btn:hover { color: var(--accent); }
.cart-badge {
  position: absolute; top: 0; right: 0;
  background: var(--accent); color: #ffffff;
  font-size: .65rem; font-weight: 700; min-width: 18px; height: 18px;
  border-radius: 99px; display: flex; align-items: center; justify-content: center;
  transform: translate(30%,-30%); pointer-events: none;
}
.cart-badge[data-count="0"] { display: none; }

.hero {
  position: sticky; top: 0; z-index: 1;
  min-height: 70svh; display: flex; align-items: center;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; }
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-desktop { display: block; }
.hero-mobile  { display: none; }
.hero-overlay { position: absolute; inset: 0; background: rgba(20,35,55,.6); }

.hero-content {
  position: relative; z-index: 2; max-width: 580px;
  text-align: left; padding: 4rem 0 5rem;
  animation: heroFadeIn .9s var(--ease) both;
}
@keyframes heroFadeIn { from { opacity:0; transform:translateY(30px); } to { opacity:1; transform:none; } }

.hero-logo { width: 180px; height: auto; margin-bottom: 1.75rem; }
.hero-eyebrow {
  display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent-light); border: 1px solid rgba(179,199,224,.45); border-radius: 99px;
  padding: .3rem .9rem; margin-bottom: 1.1rem;
}
.hero-title {
  font-family: var(--font-head); font-size: 4rem; font-weight: 600; line-height: 1.1;
  letter-spacing: -.02em; margin-bottom: 1rem; color: #ffffff;
}
.hero-desc { font-size: 1.05rem; color: rgba(255,255,255,.82); max-width: 420px; margin-bottom: 2rem; line-height: 1.7; }
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-scroll-hint {
  position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%); z-index: 2;
}
.scroll-line {
  width: 1px; height: 48px; background: linear-gradient(to bottom, transparent, var(--accent));
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse { 0%,100%{opacity:.3} 50%{opacity:1} }

.featured-row {
  position: relative; z-index: 2; background: var(--bg-2);
  padding: 1rem 0; border-top: 1px solid var(--border);
}
.featured-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem;
  align-items: start;
}
.section-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.75rem;
}
.section-head-right { display: flex; align-items: center; gap: 1rem; }
.ver-todos-link {
  display: inline-flex; align-items: center; gap: .25rem;
  font-size: .8rem; font-weight: 600; color: var(--accent);
  white-space: nowrap; transition: gap .2s var(--ease), color .2s;
}
.ver-todos-link:hover { gap: .45rem; color: var(--accent-dark); }
.carousel-nav { display: flex; gap: .5rem; }
.cnav-btn {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--border-2); color: var(--text-mid);
  display: flex; align-items: center; justify-content: center;
  transition: border-color .2s, color .2s, background .2s;
}
.cnav-btn:hover { border-color: var(--accent); color: var(--accent); background: rgba(132,160,198,.08); }

.h-carousel-wrap { overflow: hidden; border-radius: var(--radius); }
.h-carousel-track {
  display: flex; gap: 1.25rem;
  transition: transform .45s var(--ease);
}
.h-carousel-track .product-card { flex: 0 0 calc(50% - .625rem); }

.carousel-dots { display: flex; gap: .5rem; justify-content: center; margin-top: 1rem; }
.carousel-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--border-2); transition: background .2s, width .2s;
}
.carousel-dot.active { background: var(--accent); width: 18px; border-radius: 3px; }

.v-carousel-wrap { overflow: hidden; }
.v-carousel-track {
  display: flex; flex-direction: column; gap: 1rem;
  transition: transform .45s var(--ease);
}

.product-card {
  background: var(--bg-card); border-radius: var(--radius);
  border: 1px solid var(--border); overflow: hidden;
  transition: transform .25s var(--ease), box-shadow .25s;
  cursor: pointer;
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-card); }
.product-card-img {
  aspect-ratio: 1; overflow: hidden; background: var(--bg-3);
  position: relative;
}
.product-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s var(--ease); }
.product-card:hover .product-card-img img { transform: scale(1.07); }
.product-card-badge {
  position: absolute; top: .7rem; left: .7rem; z-index: 2;
  background: var(--accent); color: #ffffff;
  font-size: .68rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: .22rem .55rem; border-radius: 5px;
}
.product-card-badge.stock-low { background: #e05a2b; color: #fff; }
.product-card-body { padding: 1rem; }
.product-cat { font-size: .72rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin-bottom: .35rem; }
.product-name { font-weight: 600; font-size: .92rem; margin-bottom: .5rem; line-height: 1.4; }
.product-price-row { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.product-price { font-weight: 700; font-size: 1rem; color: var(--text); }
.product-price-old { font-size: .83rem; color: var(--text-muted); text-decoration: line-through; }
.product-price-sale { color: #2e8b5a; font-weight: 700; }

.course-card {
  background: var(--bg-card); border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex; gap: 1rem; padding: 1rem;
  transition: transform .22s var(--ease), border-color .22s;
  cursor: pointer;
}
.course-card:hover { transform: translateX(4px); border-color: var(--border-2); }
.course-card-img { width: 80px; height: 80px; flex-shrink: 0; border-radius: var(--radius-sm); overflow: hidden; background: var(--bg-3); }
.course-card-img img { width: 100%; height: 100%; object-fit: cover; }
.course-card-body { flex: 1; min-width: 0; }
.course-card-name { font-weight: 600; font-size: .9rem; margin-bottom: .3rem; line-height: 1.35; }
.course-card-desc { font-size: .79rem; color: var(--text-muted); line-height: 1.5; margin-bottom: .5rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; line-clamp: 2; overflow: hidden; }
.course-card-price { font-weight: 700; font-size: .88rem; color: var(--accent); }

.catalog-section {
  position: relative; z-index: 2; background: var(--bg);
  padding: 5rem 0;
}
.catalog-head { margin-bottom: 2.5rem; }
.catalog-filters { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 1.25rem; }
.filter-btn {
  padding: .45rem 1.1rem; border-radius: 99px;
  border: 1px solid var(--border); color: var(--text-muted); font-size: .82rem; font-weight: 500;
  transition: all .2s;
}
.filter-btn:hover, .filter-btn.active { background: var(--accent); border-color: var(--accent); color: #ffffff; }

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.catalog-loading { grid-column: 1/-1; display: flex; justify-content: center; padding: 4rem 0; }
.spinner { width: 36px; height: 36px; border: 2.5px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.empty-state { grid-column: 1/-1; text-align: center; padding: 4rem 0; color: var(--text-muted); }
.empty-state svg { margin: 0 auto 1rem; opacity: .3; }

/* ============================================================
   BANNER CAROUSEL
   ============================================================ */
.banner-carousel-section { width: 100%; overflow: hidden; position: relative; z-index: 2; }
.banner-carousel-inner   { position: relative; width: 100%; aspect-ratio: 3/1; overflow: hidden; background: var(--bg-3); }
.banner-carousel-track   {
  display: flex; width: 100%; height: 100%;
  transition: transform .55s var(--ease);
  will-change: transform;
}
.banner-slide     { min-width: 100%; height: 100%; flex-shrink: 0; }
.banner-slide img { width: 100%; height: 100%; object-fit: cover; display: block; }

.banner-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,.88); border: 1px solid rgba(255,255,255,.6);
  border-radius: 50%; width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text); z-index: 5;
  backdrop-filter: blur(6px);
  transition: background .2s, transform .2s var(--ease);
}
.banner-arrow:hover { background: #fff; transform: translateY(-50%) scale(1.08); }
.banner-prev { left: 1.25rem; }
.banner-next { right: 1.25rem; }

.banner-dots {
  position: absolute; bottom: .85rem; left: 50%; transform: translateX(-50%);
  display: flex; gap: .45rem; z-index: 5;
}
.banner-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,.5); border: 1px solid rgba(255,255,255,.25);
  cursor: pointer; transition: background .2s, transform .2s;
}
.banner-dot.active { background: #fff; transform: scale(1.3); }

/* ============================================================
   TODOS LOS CURSOS
   ============================================================ */
.all-courses-section { padding: 5rem 0; background: var(--bg); position: relative; z-index: 2; }
.all-courses-section .section-head { margin-bottom: 2rem; }

.all-courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.course-full-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.course-full-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-card); }
.course-full-card-img {
  aspect-ratio: 16/9; overflow: hidden; background: var(--bg-3);
}
.course-full-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .35s var(--ease);
}
.course-full-card:hover .course-full-card-img img { transform: scale(1.04); }
.course-full-card-body { padding: 1.25rem; display: flex; flex-direction: column; gap: .5rem; }
.course-full-card-name {
  font-family: var(--font-head); font-size: 1.15rem; font-weight: 500; line-height: 1.3;
}
.course-full-card-desc {
  color: var(--text-muted); font-size: .85rem; line-height: 1.65;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; line-clamp: calc(); overflow: hidden;
  flex: 1;
}
.course-full-card-footer {
  display: flex; align-items: center; justify-content: space-between; gap: .75rem;
  margin-top: .75rem;
}
.course-full-card-price { font-size: 1.1rem; font-weight: 700; color: var(--accent); }
.course-full-card-duration { font-size: .75rem; color: var(--text-muted); }

/* ============================================================
   INFO STRIP
   ============================================================ */
.info-strip {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 2.75rem 0;
  position: relative; z-index: 2;
}
.info-strip-inner {
  display: flex; align-items: center; justify-content: center;
  gap: 0; flex-wrap: wrap;
}
.info-item {
  display: flex; align-items: center; gap: 1.1rem;
  flex: 1; min-width: 210px; max-width: 340px;
  padding: 1.25rem 2rem;
}
.info-divider {
  width: 1px; height: 60px; background: var(--border-2);
  flex-shrink: 0;
}
.info-icon {
  width: 52px; height: 52px; flex-shrink: 0;
  background: var(--bg-3); border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
}
.info-text strong { display: block; font-size: .95rem; font-weight: 700; color: var(--text); margin-bottom: .2rem; }
.info-text span   { font-size: .82rem; color: var(--text-muted); line-height: 1.5; }

@media (max-width: 768px) {
  .banner-carousel-inner { aspect-ratio: 2/1; }
  .banner-arrow { width: 38px; height: 38px; }
  .info-divider { display: none; }
  .info-item    { max-width: 100%; border-bottom: 1px solid var(--border); padding: 1rem 0; }
  .info-item:last-child { border-bottom: none; }
  .info-strip-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  .banner-carousel-inner { aspect-ratio: 4/3; }
}

/* ============================================================
   SITE FOOTER
   ============================================================ */
.site-footer {
  position: relative; z-index: 2;
  background: var(--bg-2); border-top: 1px solid var(--border); padding: 2.5rem 0;
}
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-logo img { height: 44px; width: auto; }
.footer-nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-nav a { font-size: .82rem; color: var(--text-muted); transition: color .2s; }
.footer-nav a:hover { color: var(--accent); }
.footer-dev { font-size: .78rem; color: var(--text-muted); }
.footer-dev a { color: var(--accent); transition: opacity .2s; }
.footer-dev a:hover { opacity: .8; }

.cart-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 950; opacity: 0; pointer-events: none; transition: opacity .3s; }
.cart-overlay.open { opacity: 1; pointer-events: all; }
.cart-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: 420px; max-width: 100vw;
  background: var(--bg-2); border-left: 1px solid var(--border);
  z-index: 960; display: flex; flex-direction: column;
  transform: translateX(110%); transition: transform .35s var(--ease);
}
.cart-drawer.open { transform: translateX(0); }
.cart-drawer-head {
  padding: 1.5rem; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.cart-drawer-head h3 { font-family: var(--font-head); font-size: 1.35rem; font-weight: 500; }
.cart-drawer-close { color: var(--text-muted); padding: .4rem; transition: color .2s; border-radius: var(--radius-sm); }
.cart-drawer-close:hover { color: var(--text); background: var(--border); }
.cart-items-list { flex: 1; overflow-y: auto; padding: 1rem; display: flex; flex-direction: column; gap: .85rem; }
.cart-empty { text-align: center; padding: 3rem 1rem; color: var(--text-muted); }
.cart-empty svg { margin: 0 auto 1rem; opacity: .3; }

.cart-item {
  display: flex; gap: 1rem; align-items: flex-start;
  background: var(--bg-card); border-radius: var(--radius-sm); padding: .85rem; border: 1px solid var(--border);
}
.cart-item-img { width: 70px; height: 70px; border-radius: var(--radius-sm); overflow: hidden; flex-shrink: 0; background: var(--bg-3); }
.cart-item-img img { width: 100%; height: 100%; object-fit: cover; }
.cart-item-body { flex: 1; min-width: 0; }
.cart-item-name { font-weight: 600; font-size: .88rem; margin-bottom: .25rem; }
.cart-item-price { font-size: .85rem; color: var(--accent); font-weight: 600; }
.cart-item-actions { display: flex; align-items: center; gap: .6rem; margin-top: .5rem; }
.qty-btn { width: 28px; height: 28px; border-radius: var(--radius-sm); border: 1px solid var(--border-2); color: var(--text); display: flex; align-items: center; justify-content: center; font-size: 1rem; transition: background .15s; }
.qty-btn:hover { background: var(--bg-3); }
.qty-val { font-size: .88rem; font-weight: 600; min-width: 24px; text-align: center; }
.cart-item-remove { margin-left: auto; color: var(--text-muted); padding: .25rem; transition: color .2s; }
.cart-item-remove:hover { color: #e05a2b; }

.cart-drawer-footer { padding: 1.25rem; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: .75rem; }
.cart-subtotal { display: flex; justify-content: space-between; font-weight: 600; font-size: 1rem; }

.toast-container { position: fixed; bottom: 2rem; right: 2rem; z-index: 9999; display: flex; flex-direction: column; gap: .6rem; pointer-events: none; }
.toast {
  background: #ffffff; border: 1px solid var(--border-2); border-radius: var(--radius-sm);
  color: var(--text); padding: .9rem 1.25rem; font-size: .88rem; font-weight: 500;
  box-shadow: 0 4px 24px rgba(132,160,198,.22); pointer-events: all;
  animation: toastIn .3s var(--ease-spring) both;
  display: flex; align-items: center; gap: .7rem; max-width: 320px;
}
.toast.success { border-color: rgba(46,139,90,.3); }
.toast.error   { border-color: rgba(224,90,43,.3); }
.toast-icon { font-size: 1.1rem; flex-shrink: 0; }
@keyframes toastIn { from { opacity:0; transform:translateX(20px); } to { opacity:1; transform:none; } }
@keyframes toastOut { to { opacity:0; transform:translateX(20px); } }

.anim-left, .anim-right, .anim-up { opacity: 0; transition: opacity .65s var(--ease), transform .65s var(--ease); }
.anim-left  { transform: translateX(-50px); }
.anim-right { transform: translateX(50px); }
.anim-up    { transform: translateY(40px); }
.anim-left.visible, .anim-right.visible, .anim-up.visible { opacity: 1; transform: none; }

.stagger .product-card, .stagger .catalog-item { transition-delay: calc(var(--i, 0) * 80ms); }

@media (max-width: 1200px) {
  .catalog-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 1024px) {
  .featured-grid { grid-template-columns: 1fr; gap: 4rem; }
  .h-carousel-track .product-card { flex: 0 0 calc(50% - .625rem); }
  .catalog-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .container { padding: 0 1.25rem; }
  .nav-links { display: none; }
  .hero-title { font-size: 2.8rem; }
  .hero-desktop { display: none; }
  .hero-mobile  { display: block; }
  .catalog-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .h-carousel-track .product-card { flex: 0 0 calc(50% - .625rem); }
  .cart-drawer { width: 100%; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-nav { justify-content: center; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 2.1rem; }
  .hero-ctas  { flex-direction: column; }
  .catalog-grid { grid-template-columns: 1fr 1fr; gap: .75rem; }
  .toast-container { left: 1rem; right: 1rem; bottom: 1rem; }
  .toast { max-width: 100%; }
}