/* =========================================================
   CÓDIGO ALPHA – ESCUELA DE FORMACIÓN
   Hoja de estilos principal
   ========================================================= */

:root {
  --azul-marino: #0B2147;
  --azul-medio: #1F579F;
  --rojo-emergencia: #A52026;
  --rojo-hover: #8a1a1f;
  --dorado: #FFC828;
  --blanco: #F0F2F4;
  --gris-texto: #3a4250;
  --sombra: 0 10px 30px rgba(11, 33, 71, 0.12);
  --radio: 10px;
  --maxw: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Montserrat', system-ui, -apple-system, sans-serif;
  color: var(--gris-texto);
  line-height: 1.65;
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-weight: 800;
  line-height: 1.15;
  color: var(--azul-marino);
  letter-spacing: -0.01em;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

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

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--rojo-emergencia);
  margin-bottom: 14px;
}

.section { padding: 84px 0; }
.section--dark { background: var(--azul-marino); color: var(--blanco); }
.section--dark h1,
.section--dark h2,
.section--dark h3 { color: #fff; }
.section--soft { background: var(--blanco); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radio);
  font-weight: 700;
  font-size: 0.98rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .15s ease, background .2s ease, box-shadow .2s ease;
}
.btn--primary { background: var(--rojo-emergencia); color: #fff; }
.btn--primary:hover { background: var(--rojo-hover); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.btn--ghost:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn--gold { background: var(--dorado); color: var(--azul-marino); }
.btn--gold:hover { background: #ffd454; transform: translateY(-2px); }

/* ---------- Header / Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--azul-marino);
  box-shadow: 0 2px 18px rgba(0,0,0,.18);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 76px;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo__mark {
  width: 52px; height: 52px; flex: none;
  object-fit: contain;
}
.logo__text { line-height: 1.05; }
.logo__text strong { display: block; color: #fff; font-family: 'Montserrat',sans-serif; font-weight: 800; letter-spacing: .03em; font-size: 1.02rem; }
.logo__text span { display: block; color: var(--dorado); font-size: .68rem; letter-spacing: .22em; text-transform: uppercase; }

.nav__links { display: flex; align-items: center; gap: 30px; list-style: none; }
.nav__links a { color: #cdd6e4; font-weight: 600; font-size: .95rem; transition: color .2s; }
.nav__links a:hover, .nav__links a.active { color: #fff; }
.nav__cta { background: var(--rojo-emergencia); color:#fff !important; padding: 10px 20px; border-radius: var(--radio); }
.nav__cta:hover { background: var(--rojo-hover); }

.nav__toggle { display: none; background: none; border: 0; cursor: pointer; flex-direction: column; gap: 5px; }
.nav__toggle span { width: 26px; height: 3px; background: #fff; border-radius: 3px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 86vh;
  display: flex; align-items: center;
  color: #fff; text-align: left;
  background:
    linear-gradient(120deg, rgba(11,33,71,.92) 0%, rgba(11,33,71,.72) 55%, rgba(31,87,159,.55) 100%),
    var(--azul-medio);
  overflow: hidden;
}
.hero__ph {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(45deg, rgba(255,255,255,.03) 0 18px, transparent 18px 36px);
  z-index: 0;
}
.hero .container { position: relative; z-index: 1; }
.hero__layout { display: grid; grid-template-columns: 1.4fr .6fr; gap: 40px; align-items: center; }
.hero__logo { display: flex; justify-content: center; }
.hero__logo img { width: 100%; max-width: 280px; filter: drop-shadow(0 8px 24px rgba(0,0,0,.35)); }
.hero__modes { display: flex; gap: 16px; flex-wrap: wrap; margin: 26px 0 30px; }
.mode-badge {
  display: flex; align-items: center; gap: 12px;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.25);
  border-radius: 12px; padding: 14px 18px; backdrop-filter: blur(4px);
}
.mode-badge__ic { font-size: 1.7rem; flex: none; }
.mode-badge strong { display: block; color: #fff; font-size: 1.02rem; }
.mode-badge span { font-size: .85rem; color: #cdd6e4; }
.hero h1 { color:#fff; font-size: clamp(2.4rem, 6vw, 4.2rem); text-transform: uppercase; max-width: 14ch; }
.hero p { font-size: clamp(1.05rem, 2vw, 1.3rem); margin: 22px 0 0; max-width: 52ch; color: #dde4f0; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- Franja de confianza ---------- */
.trust {
  background: var(--rojo-emergencia); color: #fff;
  padding: 18px 0;
}
.trust ul {
  display: flex; justify-content: center; gap: 12px 48px; flex-wrap: wrap;
  list-style: none; font-weight: 700; letter-spacing: .02em;
}
.trust li::before { content: "✚"; margin-right: 10px; color: var(--dorado); }

/* ---------- Grid de ventajas ---------- */
.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.feature {
  background: #fff; border-radius: var(--radio); padding: 32px 26px;
  box-shadow: var(--sombra); border-top: 4px solid var(--rojo-emergencia);
}
.feature__icon {
  width: 54px; height: 54px; border-radius: 12px; margin-bottom: 18px;
  background: var(--azul-marino); color: var(--dorado);
  display: grid; place-items: center; font-size: 1.5rem;
}
.feature h3 { font-size: 1.12rem; margin-bottom: 8px; }
.feature p { font-size: .95rem; }

/* ---------- Section heading ---------- */
.sec-head { max-width: 640px; margin-bottom: 48px; }
.sec-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); text-transform: uppercase; }
.sec-head p { margin-top: 14px; font-size: 1.05rem; }

/* ---------- Cursos grid ---------- */
.courses { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.course-card {
  background: #fff; border-radius: var(--radio); overflow: hidden;
  box-shadow: var(--sombra); display: flex; flex-direction: column;
  transition: transform .2s ease, box-shadow .2s ease;
}
.course-card:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(11,33,71,.2); }
.course-card__img {
  height: 168px; background: var(--azul-medio);
  display: grid; place-items: center; color: rgba(255,255,255,.5);
  font-size: .82rem; letter-spacing: .1em; text-transform: uppercase;
  background-image: linear-gradient(135deg, var(--azul-marino), var(--azul-medio));
  background-size: cover; background-position: center;
}
.course-card__img.has-photo { color: transparent; }
.course-card__body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.course-card h3 { font-size: 1.18rem; margin-bottom: 12px; }
.course-card p { font-size: .94rem; flex: 1; }
.course-meta {
  display: flex; gap: 10px; margin: 16px 0; flex-wrap: wrap;
}
.chip {
  font-size: .82rem; font-weight: 700; padding: 6px 12px; border-radius: 999px;
  background: var(--blanco); color: var(--azul-marino);
}
.chip--price { background: var(--dorado); color: var(--azul-marino); }
.chip--dur { background: #e3e9f2; }

/* ---------- Ficha de curso ---------- */
.course-photo {
  width: 100%; height: 340px; object-fit: cover; display: block;
}
.course-hero { background: var(--azul-marino); color:#fff; padding: 70px 0; }
.course-hero .hero__layout { grid-template-columns: 1.5fr .5fr; }
.course-hero .hero__logo img { max-width: 190px; }
.course-hero--img { background-size: cover; background-position: center; }
.course-hero h1 { color:#fff; font-size: clamp(2rem,5vw,3rem); text-transform: uppercase; max-width: 18ch; }
.course-hero .lead { color:#dde4f0; font-size: 1.15rem; margin-top: 16px; max-width: 56ch; }
.price-box {
  display: flex; gap: 30px; flex-wrap: wrap; margin: 80px 0 30px;
}
.price-box__item {
  background: #fff; border-radius: var(--radio); padding: 26px 34px;
  box-shadow: var(--sombra); text-align: center; min-width: 200px;
  border-bottom: 5px solid var(--rojo-emergencia);
}
.price-box__item span { display:block; text-transform: uppercase; letter-spacing:.12em; font-size:.78rem; color: var(--rojo-emergencia); font-weight:700; margin-bottom: 8px; }
.price-box__item strong { font-size: 2.2rem; color: var(--azul-marino); font-family:'Montserrat',sans-serif; }
.learn-list { list-style: none; display: grid; gap: 14px; margin-top: 20px; }
.learn-list li { padding-left: 34px; position: relative; }
.learn-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--rojo-emergencia); color:#fff;
  display: grid; place-items: center; font-size: .8rem; font-weight: 700;
}

/* ---------- Testimonios ---------- */
.testimonials { display: grid; grid-template-columns: repeat(3,1fr); gap: 26px; }
.testimonial {
  background: var(--azul-medio); border-radius: var(--radio); padding: 30px;
  color: #fff;
}
.testimonial p { font-style: italic; margin-bottom: 18px; }
.testimonial .who { display:flex; align-items:center; gap: 12px; }
.testimonial .who span:first-child {
  width: 42px; height: 42px; border-radius: 50%; background: var(--dorado);
  color: var(--azul-marino); display:grid; place-items:center; font-weight:800;
}
.testimonial .who strong { display:block; font-size:.95rem; }
.testimonial .who em { font-style: normal; font-size: .82rem; color: #cdd6e4; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--rojo-emergencia); color:#fff; text-align: center; padding: 70px 0; }
.cta-band h2 { color:#fff; font-size: clamp(1.7rem,4vw,2.4rem); text-transform: uppercase; }
.cta-band p { margin: 14px auto 28px; max-width: 50ch; font-size: 1.08rem; }

/* ---------- Formularios ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field--full { grid-column: 1 / -1; }
.field label { font-weight: 700; font-size: .9rem; color: var(--azul-marino); }
.field input, .field select, .field textarea {
  padding: 13px 15px; border: 1.5px solid #d3dae5; border-radius: 8px;
  font: inherit; background: #fff; transition: border-color .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--azul-medio); box-shadow: 0 0 0 3px rgba(31,87,159,.15);
}
.field textarea { resize: vertical; min-height: 120px; }

.contact-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: start; }
.contact-info { display: grid; gap: 22px; }
.contact-info .item { display:flex; gap:14px; align-items:flex-start; }
.contact-info .item .ic {
  width: 44px; height:44px; flex:none; border-radius: 10px;
  background: var(--azul-marino); color: var(--dorado);
  display:grid; place-items:center; font-size:1.2rem;
}
.contact-info .item strong { display:block; color: var(--azul-marino); margin-bottom: 2px; }
.contact-info .item a { display: block; }

/* ---------- Empresas highlight ---------- */
.fundae-box {
  background: var(--dorado); border-radius: var(--radio); padding: 30px 34px;
  margin-top: 26px; border-left: 6px solid var(--rojo-emergencia);
}
.fundae-box strong { color: var(--azul-marino); }

/* ---------- Pestañas de catálogo ---------- */
.tabs {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-bottom: 40px; justify-content: center;
}
.tab {
  background: #fff; border: 2px solid #d3dae5; color: var(--azul-marino);
  padding: 13px 26px; border-radius: 999px; font: inherit; font-weight: 700;
  cursor: pointer; transition: all .2s;
}
.tab:hover { border-color: var(--azul-medio); }
.tab.active { background: var(--azul-marino); color: #fff; border-color: var(--azul-marino); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn .3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ---------- FAQ acordeón ---------- */
.faq { max-width: 820px; margin: 0 auto; }
.faq__item {
  background: #fff; border-radius: 10px; margin-bottom: 14px;
  box-shadow: 0 4px 14px rgba(11,33,71,.08); overflow: hidden;
}
.faq__q {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  padding: 20px 24px; font: inherit; font-weight: 700; color: var(--azul-marino);
  font-size: 1.05rem; display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq__q::after { content: "+"; font-size: 1.5rem; color: var(--rojo-emergencia); flex: none; transition: transform .2s; }
.faq__item.open .faq__q::after { content: "−"; }
.faq__a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq__a p { padding: 0 24px 20px; margin: 0; }
.faq__item.open .faq__a { max-height: 300px; }

/* ---------- Footer ---------- */
.footer { background: #061227; color: #aeb9cc; padding: 56px 0 26px; }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.footer h4 { color:#fff; margin-bottom: 16px; font-size: 1rem; text-transform: uppercase; letter-spacing: .08em; }
.footer a { display:block; color:#aeb9cc; padding: 5px 0; font-size: .94rem; }
.footer a:hover { color: var(--dorado); }
.footer__bottom { margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); font-size: .85rem; text-align:center; }

/* ---------- WhatsApp flotante ---------- */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 200;
  width: 60px; height: 60px; border-radius: 50%;
  background: #25D366; color:#fff; display:grid; place-items:center;
  font-size: 1.8rem; box-shadow: 0 6px 20px rgba(0,0,0,.3);
  transition: transform .15s;
}
.wa-float:hover { transform: scale(1.08); }

/* ---------- Páginas legales ---------- */
.legal { max-width: 800px; }
.legal h2 { margin: 32px 0 12px; font-size: 1.4rem; }
.legal p { margin-bottom: 14px; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .features { grid-template-columns: repeat(2, 1fr); }
  .courses, .testimonials { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav__links {
    position: absolute; top: 76px; left: 0; right: 0;
    background: var(--azul-marino); flex-direction: column; gap: 0;
    padding: 10px 24px 24px; display: none;
  }
  .nav__links.open { display: flex; }
  .nav__links li { width: 100%; }
  .nav__links a { display:block; padding: 14px 0; border-top: 1px solid rgba(255,255,255,.08); }
  .nav__toggle { display: flex; }
  .features, .courses, .testimonials, .form-grid, .footer__grid { grid-template-columns: 1fr; }
  .ficha-grid { grid-template-columns: 1fr !important; }
  .instructor-grid { grid-template-columns: 1fr !important; }
  .hero__layout { grid-template-columns: 1fr; }
  .hero__logo { order: -1; }
  .hero__logo img { max-width: 160px; }
  .section { padding: 60px 0; }
  .hero { min-height: 78vh; }
}