:root {
  --bg:        #0A0A0A;
  --bg-elev:   #141414;
  --bg-card:   #161616;
  --line:      #232323;
  --line-lo:   #1c1c1c;
  --fg:        #FAFAFA;
  --muted:     #9A9A9A;
  --muted-dk:  #6B6B6B;
  --accent:    #FF5A00;
  --accent-dk: #E04500;
  --accent-lo: rgba(255, 90, 0, 0.12);
  --radius:    18px;
  --radius-sm: 10px;
  --maxw:      1180px;
  --shadow:    0 1px 0 rgba(255,255,255,.04) inset, 0 8px 30px rgba(0,0,0,.4);
  --display:   "Bebas Neue", Impact, "Arial Narrow Bold", sans-serif;
  --body:      "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.55;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--fg); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--accent); }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.05; letter-spacing: .01em; }
p { margin: 0 0 1em; }
strong { color: var(--fg); }
.muted { color: var(--muted); }
.accent { color: var(--accent); }
.center { text-align: center; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 1.25rem; }

/* Display type */
.display {
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: .02em;
  text-transform: uppercase;
  line-height: .95;
}
h1.display { font-size: clamp(3.2rem, 8.5vw, 6rem); }
h2.display { font-size: clamp(2.4rem, 5.5vw, 4.2rem); }
.eyebrow {
  display: inline-block;
  font-family: var(--body);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .75rem;
  font-weight: 600;
  color: var(--accent);
  padding: .35rem .7rem;
  border: 1px solid var(--accent-lo);
  background: var(--accent-lo);
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

/* Brand / Logo */
.brand { display: inline-flex; align-items: center; gap: .65rem; font-family: var(--display); letter-spacing: .04em; }
.brand:hover { color: var(--fg); }
.logo-mark {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  background: var(--accent);
  color: #fff;
  font-family: var(--display);
  font-size: 1.7rem;
  border-radius: 10px;
  box-shadow: 0 6px 18px rgba(255,90,0,.35);
}
.brand-name { font-size: 1.15rem; letter-spacing: .08em; }
.brand-name em { font-style: normal; color: var(--accent); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,10,10,.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.primary-nav { display: flex; align-items: center; gap: 1.5rem; }
.primary-nav a { font-weight: 500; font-size: .95rem; color: var(--muted); }
.primary-nav a:hover { color: var(--fg); }
.primary-nav a.btn { color: #fff; }
@media (max-width: 820px) {
  .primary-nav a:not(.btn) { display: none; }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: .75rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-family: var(--body);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .12s ease, background .15s ease, color .15s ease, border-color .15s ease;
  text-align: center;
  letter-spacing: .01em;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 8px 24px rgba(255,90,0,.25); }
.btn-primary:hover { background: var(--accent-dk); color: #fff; }
.btn-ghost { color: var(--fg); border-color: var(--line); background: transparent; }
.btn-ghost:hover { border-color: var(--fg); color: var(--fg); }
.btn-sm { padding: .55rem 1rem; font-size: .9rem; }
.btn-lg { padding: 1rem 1.7rem; font-size: 1.05rem; }
.btn.full { display: block; width: 100%; }

/* Hero */
.hero {
  padding: 5rem 0 6rem;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(255,90,0,.18), transparent 60%),
    radial-gradient(ellipse 40% 30% at 90% 10%, rgba(255,90,0,.08), transparent 60%),
    var(--bg);
  position: relative;
  overflow: hidden;
}
.hero-inner { max-width: 920px; margin: 0 auto; text-align: center; }
.hero h1 { margin-block: .25rem 1.25rem; }
.hero-sub { font-size: 1.15rem; color: var(--muted); max-width: 36em; margin: 0 auto 2rem; }
.cta-row { display: flex; flex-wrap: wrap; justify-content: center; gap: .75rem; margin-bottom: 2.25rem; }
.hero-points {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem 2.25rem;
  color: var(--muted); font-size: .95rem;
}
.hero-points li::before { content: "·"; color: var(--accent); margin-right: .65em; }

/* Sections */
.section { padding: 6rem 0; }
.dark-bg { background: var(--bg-elev); border-block: 1px solid var(--line); }
.section-head { margin-bottom: 3rem; max-width: 720px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-title { letter-spacing: .03em; }
.section-sub { color: var(--muted); margin-top: 1rem; font-size: 1.05rem; }

/* Faculties */
.faculty-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.faculty {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
  transition: transform .2s ease, border-color .2s ease;
}
.faculty:hover { transform: translateY(-3px); border-color: #2e2e2e; }
.faculty.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset, 0 12px 40px rgba(255,90,0,.10); }
.faculty.soon { opacity: .85; }
.faculty h3 { font-family: var(--display); font-size: 2.1rem; letter-spacing: .03em; margin-bottom: .75rem; }
.faculty p { color: var(--muted); }
.badge {
  display: inline-block;
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: .3rem .65rem;
  border-radius: 999px;
  background: var(--line);
  color: var(--muted);
  margin-bottom: 1rem;
  font-weight: 600;
}
.badge-on { background: var(--accent); color: #fff; }
.link-arrow { display: inline-block; margin-top: .5rem; font-weight: 600; color: var(--accent); }
.link-arrow.muted { color: var(--muted-dk); }
.link-arrow:hover { color: var(--fg); }
@media (max-width: 820px) { .faculty-grid { grid-template-columns: 1fr; } }

/* Método ENA */
.ena {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.25rem;
  counter-reset: ena;
}
.ena li {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  position: relative;
}
.ena-num {
  font-family: var(--display);
  font-size: 2.5rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 1rem;
}
.ena h3 { font-size: 1.05rem; margin-bottom: .5rem; }
.ena p { color: var(--muted); font-size: .92rem; }
@media (max-width: 1000px) { .ena { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px)  { .ena { grid-template-columns: 1fr; } }

/* Tutores */
.tutor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.tutor {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  transition: transform .2s ease, border-color .2s ease;
}
.tutor:hover { transform: translateY(-3px); border-color: var(--accent); }
.avatar {
  width: 96px; height: 96px;
  border-radius: 50%;
  margin: 0 auto 1.25rem;
  display: grid; place-items: center;
  font-family: var(--display);
  font-size: 3rem;
  color: #fff;
  letter-spacing: .04em;
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
}
.avatar-a { background: linear-gradient(135deg, #FF5A00, #FF8A3D); }
.avatar-x { background: linear-gradient(135deg, #FF5A00, #C73600); }
.avatar-b { background: linear-gradient(135deg, #2A2A2A, #555); border: 1px solid var(--accent); }
.tutor h3 { font-family: var(--display); font-size: 2rem; margin-bottom: .15rem; }
.tutor .role { color: var(--accent); font-weight: 600; font-size: .85rem; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 1rem; }
.tutor p { color: var(--muted); }
@media (max-width: 820px) { .tutor-grid { grid-template-columns: 1fr; } }

/* Planes */
.plan-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
}
.plan {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
  display: flex; flex-direction: column;
  transition: transform .2s ease, border-color .2s ease;
}
.plan:hover { transform: translateY(-3px); border-color: #2e2e2e; }
.plan.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent) inset, 0 12px 40px rgba(255,90,0,.12);
  transform: translateY(-6px);
}
.ribbon {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff;
  padding: .35rem .8rem; border-radius: 999px;
  font-size: .7rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
}
.plan-name { font-family: var(--display); font-size: 1.6rem; letter-spacing: .06em; margin-bottom: .15rem; }
.plan-len { color: var(--muted); font-size: .9rem; margin-bottom: 1rem; text-transform: uppercase; letter-spacing: .08em; }
.plan-price {
  font-family: var(--display);
  font-size: 3.4rem;
  line-height: 1;
  margin-bottom: 1.5rem;
}
.plan-price .dollar { font-size: 1.4rem; vertical-align: top; color: var(--muted); margin-right: .15em; }
.plan-price small { font-family: var(--body); font-size: .85rem; font-weight: 500; color: var(--muted); letter-spacing: 0; text-transform: none; margin-left: .35em; }
.plan ul { list-style: none; padding: 0; margin: 0 0 1.75rem; flex: 1; }
.plan li { padding: .55rem 0; color: var(--muted); border-bottom: 1px solid var(--line-lo); font-size: .95rem; }
.plan li::before { content: "+"; color: var(--accent); margin-right: .5em; font-weight: 700; }
.plan li:last-child { border-bottom: 0; }
.plan-foot { text-align: center; color: var(--muted); margin-top: 2rem; }
.plan-foot a { color: var(--accent); }
@media (max-width: 980px) { .plan-grid { grid-template-columns: repeat(2, 1fr); } .plan.featured { transform: none; } }
@media (max-width: 600px) { .plan-grid { grid-template-columns: 1fr; } }

/* CTA Final */
.cta-final {
  padding: 6rem 0;
  text-align: center;
  background:
    radial-gradient(ellipse 60% 70% at 50% 50%, rgba(255,90,0,.18), transparent 60%),
    var(--bg);
  border-top: 1px solid var(--line);
}
.cta-final h2 { font-size: clamp(2.6rem, 6vw, 5rem); margin-bottom: 1rem; }
.cta-final p { color: var(--muted); margin-bottom: 2rem; font-size: 1.1rem; }

/* Footer */
.site-footer { padding: 4rem 0 2rem; border-top: 1px solid var(--line); background: var(--bg); }
.site-footer .cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2.5rem; margin-bottom: 2.5rem; }
.site-footer h4 {
  font-family: var(--body);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--muted-dk);
  margin-bottom: 1rem;
}
.site-footer a { display: block; padding: .25rem 0; color: var(--muted); font-size: .95rem; }
.site-footer a:hover { color: var(--accent); }
.site-footer .brand { margin-bottom: .75rem; }
.site-footer .copyright { font-size: .85rem; border-top: 1px solid var(--line); padding-top: 1.5rem; }
@media (max-width: 760px) { .site-footer .cols { grid-template-columns: 1fr; gap: 1.5rem; } }