/* ═══════════════════════════════════════════════════════════════
   ITP — Instituto Técnico del Petróleo, Minas e Industrias
   Sistema de diseño NUEVO (Fase 1) — oscuro petróleo, no relacionado
   con el demo. Referencias: header Maersk Training + cursos PetroKnowledge.
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* Base oscura petróleo-navy */
  --bg:            #071A22;   /* fondo principal, azul petróleo casi negro */
  --bg-2:          #0C2530;   /* superficies elevadas */
  --bg-3:          #123240;   /* cards oscuras / hover */
  --navy:          #00243D;   /* CTA sólido tipo Maersk */
  /* Acentos (NO ámbar) */
  --teal:          #17B3A3;   /* acento primario, interactivo */
  --teal-2:        #0E7C72;
  --orange:        #F18718;   /* acento de marca real ITP, para CTA fuertes */
  --orange-2:      #C96D0E;
  /* Texto */
  --ink:           #0A1620;   /* texto sobre claro */
  --text:          #EAF1F3;   /* texto sobre oscuro */
  --muted:         #93A7AD;   /* texto secundario sobre oscuro */
  --muted-ink:     #5C6B72;   /* texto secundario sobre claro */
  --line:          rgba(255,255,255,0.10);
  --line-ink:      #E2E8EA;
  /* Secciones claras */
  --paper:         #F4F6F6;
  --paper-2:       #FFFFFF;
  /* Sistema */
  --header-h:      80px;
  --radius:        14px;
  --radius-sm:     8px;
  --maxw:          1500px;
  --shadow:        0 18px 50px rgba(0,0,0,.14);
  --shadow-sm:     0 6px 20px rgba(0,0,0,.08);
  --font:          'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-display:  'Space Grotesk', 'Inter', system-ui, sans-serif;
  --ease:          cubic-bezier(.22,.61,.36,1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 20px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font); background: var(--paper); color: var(--ink);
  line-height: 1.6; font-size: 16px; -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1,h2,h3,h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.12; letter-spacing: -0.01em; margin: 0; }
::selection { background: var(--teal); color: #04121a; }

.itp-container { max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2.5rem); }
.itp-section { padding: clamp(3.5rem, 8vw, 6.5rem) 0; }
.section-dark { background: var(--bg); color: var(--text); }
.section-paper { background: var(--paper); color: var(--ink); }
.section-white { background: var(--paper-2); color: var(--ink); }

/* Encabezado de sección */
.sec-head { max-width: 720px; margin-bottom: 2.75rem; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow { display: inline-flex; align-items: center; gap: .5rem; font-family: var(--font-display);
  font-size: .72rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--teal); margin-bottom: .9rem; }
.eyebrow::before { content: ''; width: 26px; height: 2px; background: var(--teal); display: inline-block; }
.sec-head h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
.sec-head p { color: var(--muted-ink); font-size: 1.05rem; margin: .9rem 0 0; }
.section-dark .sec-head p { color: var(--muted); }

/* ── Botones ── */
.btn { display: inline-flex; align-items: center; gap: .6rem; font-family: var(--font-display);
  font-weight: 600; font-size: .95rem; padding: .85rem 1.5rem; border-radius: var(--radius-sm);
  border: 1px solid transparent; cursor: pointer; transition: all .25s var(--ease); text-align: center; }
.btn-primary { background: var(--orange); color: #1a0e00; }
.btn-primary:hover { background: var(--orange-2); transform: translateY(-2px); }
.btn-teal { background: var(--teal); color: #04121a; }
.btn-teal:hover { background: var(--teal-2); color: #fff; transform: translateY(-2px); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: #013a5f; transform: translateY(-2px); }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }
.btn-outline { background: transparent; border-color: var(--line-ink); color: var(--ink); }
.btn-outline:hover { border-color: var(--ink); }
.btn-wa { background: #25D366; color: #04120a; }
.btn-wa:hover { background: #1eb455; transform: translateY(-2px); }
.btn-lg { padding: 1rem 1.9rem; font-size: 1rem; }

/* ═══ HEADER estilo Maersk (transparente sobre hero → sólido al scroll) ═══ */
.itp-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; height: var(--header-h);
  display: flex; align-items: center; transition: background .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
  background: linear-gradient(to bottom, rgba(4,14,20,.65), rgba(4,14,20,0)); border-bottom: 1px solid transparent; }
.itp-header.scrolled { background: rgba(7,26,34,.92); backdrop-filter: blur(14px); border-bottom-color: var(--line); box-shadow: 0 8px 30px rgba(0,0,0,.35); }
.itp-header .itp-container { display: flex; align-items: center; gap: 2rem; width: 100%; }
.itp-logo-img { height: 42px; width: auto; }
.itp-nav { display: flex; align-items: center; gap: 1.9rem; margin-left: auto; }
.itp-nav > a, .itp-nav .nav-item > a { position: relative; font-family: var(--font-display); font-weight: 500; font-size: .92rem; color: var(--text);
  padding: .5rem 0; letter-spacing: .01em; transition: color .2s; }
.itp-nav > a::after, .itp-nav .nav-item > a::after { content: ''; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0; background: var(--teal); transition: width .25s var(--ease); }
.itp-nav > a:hover, .itp-nav > a.active,
.itp-nav .nav-item > a:hover, .itp-nav .nav-item.open > a { color: #fff; }
.itp-nav > a:hover::after, .itp-nav > a.active::after,
.itp-nav .nav-item > a:hover::after, .itp-nav .nav-item.open > a::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: .9rem; }
.btn-search { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line); background: rgba(255,255,255,.06);
  color: var(--text); cursor: pointer; display: grid; place-items: center; transition: all .2s; }
.btn-search:hover { background: var(--teal); color: #04121a; border-color: var(--teal); }
.header-cta { background: var(--orange); color: #1a0e00; font-family: var(--font-display); font-weight: 600; font-size: .9rem;
  padding: .6rem 1.2rem; border-radius: var(--radius-sm); transition: all .25s var(--ease); }
.header-cta:hover { background: var(--orange-2); transform: translateY(-1px); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.hamburger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; }

/* ═══ MEGA-MENÚ (estilo Maersk Training) ═══ */
.itp-nav .nav-item { position: relative; display: inline-flex; align-items: center; gap: .35rem; }
.itp-nav .nav-item > a { display: inline-flex; align-items: center; gap: .35rem; }
.nav-caret { font-size: .6rem; transition: transform .25s var(--ease); opacity: .7; }
.nav-item.open .nav-caret { transform: rotate(180deg); }

.mega { position: fixed; left: 0; right: 0; top: var(--header-h); z-index: 99;
  background: rgba(7,26,34,.98); backdrop-filter: blur(16px); border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line); box-shadow: 0 30px 60px rgba(0,0,0,.5);
  opacity: 0; visibility: hidden; transform: translateY(-12px); transition: opacity .28s var(--ease), transform .28s var(--ease), visibility .28s;
  max-height: calc(100vh - var(--header-h)); overflow-y: auto; }
.mega.open { opacity: 1; visibility: visible; transform: translateY(0); }
.mega-inner { display: grid; grid-template-columns: 1fr 300px; gap: 2rem; padding: 1.6rem clamp(1rem,4vw,2.5rem) 1.8rem; max-width: var(--maxw); margin: 0 auto; }
.mega-modalidades { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.1rem; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.mega-modalidades .mlabel { font-family: var(--font-display); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); align-self: center; margin-right: .3rem; }
.mega-modalidades a { display: inline-flex; align-items: center; gap: .45rem; background: rgba(255,255,255,.05); border: 1px solid var(--line);
  color: var(--text); font-family: var(--font-display); font-weight: 500; font-size: .82rem; padding: .4rem .85rem; border-radius: 24px; transition: all .2s; }
.mega-modalidades a:hover { border-color: var(--teal); color: var(--teal); background: rgba(23,179,163,.08); }
.mega-modalidades a i { color: var(--teal); }
.mega-cols { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 1.1rem 1.4rem; }
.mega-col h4 { font-family: var(--font-display); font-size: .82rem; margin-bottom: .55rem; padding-bottom: .4rem; border-bottom: 2px solid var(--teal); display: inline-block; }
.mega-col h4 a { color: #fff; }
.mega-col ul { list-style: none; margin: 0; padding: 0; }
.mega-col li a { display: block; color: var(--muted); font-size: .8rem; line-height: 1.28; padding: .3rem 0; transition: color .18s; }
.mega-col li a:hover { color: var(--teal); }
.mega-col .more { display: inline-flex; align-items: center; gap: .35rem; margin-top: .3rem; font-family: var(--font-display); font-size: .74rem; font-weight: 600; color: var(--orange); }
.mega-col .more:hover { gap: .6rem; }
.mega-feature { background: linear-gradient(150deg, var(--navy), var(--teal-2)); border-radius: var(--radius); padding: 1.4rem; display: flex; flex-direction: column; justify-content: space-between; gap: 1rem; color: #fff; }
.mega-feature .fk { font-family: var(--font-display); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; opacity: .8; }
.mega-feature h3 { font-size: 1.2rem; margin: .35rem 0 .5rem; }
.mega-feature p { font-size: .82rem; color: rgba(255,255,255,.85); margin: 0; }
.mega-count { font-family: var(--font-display); font-size: 2rem; font-weight: 700; line-height: 1; }
.mega-count span { font-size: .82rem; font-weight: 500; opacity: .85; display: block; margin-top: .2rem; }
@media (max-width: 1140px) { .mega-cols { grid-template-columns: repeat(3, minmax(0,1fr)); } }

/* Mobile menu */
.mobile-menu { position: fixed; inset: 0; z-index: 200; background: rgba(4,14,20,.6); backdrop-filter: blur(4px); opacity: 0; visibility: hidden; transition: .3s; }
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-panel { position: absolute; right: 0; top: 0; height: 100%; width: min(320px, 86vw); background: var(--bg-2);
  padding: 1.5rem; display: flex; flex-direction: column; gap: .3rem; transform: translateX(100%); transition: transform .3s var(--ease); }
.mobile-menu.open .mobile-panel { transform: translateX(0); }
.mobile-panel a { color: var(--text); font-family: var(--font-display); font-weight: 500; padding: .85rem .5rem; border-bottom: 1px solid var(--line); }
.mobile-close { align-self: flex-end; background: none; border: 0; color: var(--text); font-size: 1.6rem; cursor: pointer; }

/* ═══ HERO estilo Maersk (imagen a sangre, header encima) ═══ */
.hero { position: relative; min-height: 92vh; display: flex; align-items: flex-end; color: var(--text); overflow: hidden; }
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-media img, .hero-media video { width: 100%; height: 100%; object-fit: cover; }
.hero-media::after { content: ''; position: absolute; inset: 0;
  background: linear-gradient(105deg, rgba(4,14,20,.92) 0%, rgba(4,14,20,.72) 42%, rgba(4,14,20,.28) 100%); }
.hero-inner { position: relative; z-index: 2; width: 100%; padding-bottom: clamp(3rem, 7vw, 6rem); padding-top: calc(var(--header-h) + 2rem); }
.hero-eyebrow { display: inline-flex; align-items: center; gap: .6rem; font-family: var(--font-display); font-weight: 600;
  font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; color: var(--teal); margin-bottom: 1.1rem; }
.hero-badge { background: var(--orange); color: #1a0e00; padding: .25rem .6rem; border-radius: 4px; font-size: .72rem; }
.hero h1 { font-size: clamp(2.2rem, 6vw, 4.2rem); max-width: 15ch; margin-bottom: 1.2rem; font-weight: 600; }
.hero-sub { font-size: clamp(1.05rem, 2vw, 1.3rem); color: var(--text); max-width: 46ch; margin-bottom: .5rem; }
.hero-slogan { font-family: var(--font-display); color: var(--teal); letter-spacing: .04em; margin-bottom: 2rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
/* Search bar del hero */
.hero-search { display: flex; max-width: 620px; background: rgba(255,255,255,.08); border: 1px solid var(--line);
  border-radius: 12px; padding: .4rem; backdrop-filter: blur(8px); }
.hero-search input { flex: 1; background: none; border: 0; color: #fff; font-family: var(--font); font-size: 1rem; padding: .7rem 1rem; outline: none; }
.hero-search input::placeholder { color: var(--muted); }
.hero-search button { background: var(--teal); color: #04121a; border: 0; border-radius: 9px; padding: 0 1.3rem; cursor: pointer; font-size: 1rem; }
.hero-search button:hover { background: var(--teal-2); color: #fff; }
/* franja de industrias bajo el hero */
.hero-strip { position: relative; z-index: 2; display: flex; flex-wrap: wrap; gap: 1.4rem 2.2rem; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.hero-strip a { display: inline-flex; align-items: center; gap: .5rem; color: var(--muted); font-family: var(--font-display); font-weight: 500; font-size: .9rem; transition: color .2s; }
.hero-strip a:hover { color: var(--teal); }
.hero-strip i { color: var(--teal); }

/* ═══ STATS ═══ */
.stats { background: var(--bg-2); color: var(--text); }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.stat { text-align: center; padding: 1.5rem; }
.stat-num { font-family: var(--font-display); font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 700; color: var(--teal); line-height: 1; }
.stat-label { color: var(--muted); font-size: .92rem; margin-top: .6rem; }

/* ═══ FEATURE / ABOUT ═══ */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.split-media img { border-radius: var(--radius); width: 100%; aspect-ratio: 4/3; object-fit: cover; box-shadow: var(--shadow); }
.values { display: grid; gap: 1rem; margin-top: 1.5rem; }
.value { display: grid; grid-template-columns: 46px 1fr; gap: 1rem; align-items: start; }
.value-ic { width: 46px; height: 46px; border-radius: 10px; background: var(--teal); color: #04121a; display: grid; place-items: center; font-size: 1.15rem; }
.value strong { font-family: var(--font-display); }
.value p { margin: .2rem 0 0; font-size: .9rem; color: var(--muted-ink); }

/* ═══ INDUSTRIAS (hover marcado) ═══ */
.ind-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.25rem; }
.ind-card { position: relative; min-height: 300px; border-radius: var(--radius); overflow: hidden; display: flex;
  align-items: flex-end; padding: 1.5rem; color: #fff; isolation: isolate; }
.ind-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .6s var(--ease); }
.ind-card::after { content: ''; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(transparent 25%, rgba(4,14,20,.92)); transition: background .3s; }
.ind-card:hover img { transform: scale(1.08); }
.ind-card:hover::after { background: linear-gradient(rgba(7,26,34,.55), rgba(4,14,20,.92)); }
.ind-card .ind-kicker { font-family: var(--font-display); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--teal); }
.ind-card h3 { font-size: 1.35rem; margin: .3rem 0; }
.ind-card .ind-link { font-family: var(--font-display); font-size: .85rem; font-weight: 600; color: #fff; opacity: 0;
  transform: translateY(8px); transition: all .3s var(--ease); display: inline-flex; gap: .4rem; align-items: center; }
.ind-card:hover .ind-link { opacity: 1; transform: translateY(0); }

/* ═══ CARDS DE CURSO (foto + nombre; hover = fade de color + descripción) ═══ */
.courses-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 1.5rem; }
/* Cursos destacados (home): máx. 3 por fila, más anchas y menos altas */
#featuredGrid { grid-template-columns: repeat(3, minmax(0,1fr)); }
#featuredGrid .course-media { aspect-ratio: 4/3; }
@media (max-width: 960px) { #featuredGrid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 620px) { #featuredGrid { grid-template-columns: 1fr; } }
.course-card { background: var(--paper-2); border: 1px solid var(--line-ink); border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column; transition: box-shadow .3s var(--ease), transform .3s var(--ease); }
.course-card:hover { box-shadow: var(--shadow); transform: translateY(-5px); }
/* Media con overlay de color y descripción al hover */
.course-media { position: relative; aspect-ratio: 3/4; overflow: hidden; display: block; }
.course-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.course-card:hover .course-media img { transform: scale(1.07); }
.course-media .ribbon { position: absolute; top: .8rem; left: .8rem; z-index: 3; background: var(--orange); color: #1a0e00;
  font-family: var(--font-display); font-size: .64rem; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; padding: .3rem .6rem; border-radius: 5px; transition: opacity .3s var(--ease); }
/* Al hacer hover el overlay cubre la foto: ocultamos el tag para que no tape el texto */
.course-card:hover .ribbon { opacity: 0; }
.course-overlay { position: absolute; inset: 0; z-index: 2; display: flex; flex-direction: column; justify-content: center; gap: .55rem;
  padding: 1.5rem 1.35rem; color: #fff; opacity: 0; transition: opacity .35s var(--ease); overflow: hidden;
  background: linear-gradient(160deg, rgba(23,179,163,.92) 0%, rgba(0,36,61,.95) 100%); }
.course-card:hover .course-overlay { opacity: 1; }
.course-overlay > * { flex: 0 0 auto; }
.course-overlay .ov-cat { font-family: var(--font-display); font-size: .68rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.85); margin: 0; }
.course-overlay .ov-desc { font-size: .85rem; line-height: 1.5; margin: 0; }
.course-overlay .ov-meta { font-size: .74rem; color: rgba(255,255,255,.85); margin: 0; }
.course-overlay .ov-link { font-family: var(--font-display); font-size: .82rem; font-weight: 600; display: inline-flex; align-items: center; gap: .45rem; }
.course-card:hover .course-overlay .ov-link { gap: .7rem; }
/* Pie: categoría + nombre siempre visibles */
.course-foot { padding: 1.1rem 1.25rem 1.35rem; text-align: center; display: flex; flex-direction: column; gap: .3rem; flex: 1; justify-content: center; }
.course-cat { font-family: var(--font-display); font-size: .66rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--teal-2); }
.course-foot h3 { font-size: 1.06rem; line-height: 1.3; }
.course-foot h3 a { color: var(--ink); }
.course-foot h3 a:hover { color: var(--teal-2); }

/* ═══ CURSOS RELACIONADOS (carrusel, card cuadrada 1:1, hover = solo modalidad) ═══ */
.related-swiper { --swiper-theme-color: var(--teal); padding-bottom: 3rem; }
.related-swiper .swiper-button-next, .related-swiper .swiper-button-prev { color: var(--teal); }
.related-swiper .swiper-button-next::after, .related-swiper .swiper-button-prev::after { font-size: 1.4rem; font-weight: 700; }
.related-card { background: var(--paper-2); border: 1px solid var(--line-ink); border-radius: var(--radius); overflow: hidden; height: 100%; display: flex; flex-direction: column; transition: box-shadow .3s var(--ease), transform .3s var(--ease); }
.related-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.related-media { position: relative; aspect-ratio: 1/1; overflow: hidden; display: block; }
.related-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.related-card:hover .related-media img { transform: scale(1.07); }
.related-overlay { position: absolute; inset: 0; display: grid; place-items: center; padding: 1rem; text-align: center;
  opacity: 0; transition: opacity .35s var(--ease);
  background: linear-gradient(160deg, rgba(23,179,163,.92) 0%, rgba(0,36,61,.95) 100%); }
.related-card:hover .related-overlay { opacity: 1; }
.rel-mod { font-family: var(--font-display); font-weight: 600; font-size: 1rem; letter-spacing: .06em; text-transform: uppercase; color: #fff; }
.related-foot { padding: 1rem 1.1rem 1.2rem; text-align: center; display: flex; flex-direction: column; gap: .3rem; flex: 1; justify-content: center; }
.related-foot h3 { font-size: .98rem; line-height: 1.3; }
.related-foot h3 a { color: var(--ink); }
.related-foot h3 a:hover { color: var(--teal-2); }

/* ═══ CATÁLOGO (layout sidebar estilo PetroKnowledge) ═══ */
.catalog-layout { display: grid; grid-template-columns: 288px 1fr; gap: 2.25rem; align-items: start; }
.catalog-aside { position: sticky; top: calc(var(--header-h) + 1.25rem); background: var(--paper-2); border: 1px solid var(--line-ink);
  border-radius: var(--radius); padding: 1.5rem; }
.catalog-aside h3 { font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-ink); margin-bottom: 1.25rem; font-family: var(--font-display); }
.filter-block { margin-bottom: 1.4rem; }
.filter-block label { display: block; font-family: var(--font-display); font-weight: 600; font-size: .82rem; margin-bottom: .5rem; }
.filter-block input, .filter-block select { width: 100%; padding: .7rem .8rem; border: 1px solid var(--line-ink); border-radius: var(--radius-sm);
  background: var(--paper); font-family: var(--font); font-size: .9rem; color: var(--ink); }
.filter-block input:focus, .filter-block select:focus { outline: none; border-color: var(--teal); }
.catalog-main .courses-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
@media (max-width: 1240px) { .catalog-main .courses-grid { grid-template-columns: repeat(3, minmax(0,1fr)); } }
@media (max-width: 760px)  { .catalog-main .courses-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 460px)  { .catalog-main .courses-grid { grid-template-columns: 1fr; } }
.catalog-main-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.25rem; }
.results-count { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.results-count span { color: var(--teal-2); }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.25rem; }
.chip { display: inline-flex; align-items: center; gap: .45rem; background: var(--bg-3); color: var(--text); font-size: .8rem;
  padding: .35rem .7rem; border-radius: 20px; }
.chip button { background: none; border: 0; color: var(--muted); cursor: pointer; font-size: 1rem; line-height: 1; }
.chip button:hover { color: var(--orange); }
.empty { grid-column: 1/-1; text-align: center; padding: 4rem 1rem; color: var(--muted-ink); }
.empty i { font-size: 2.5rem; color: var(--line-ink); margin-bottom: 1rem; }

/* ═══ PÁGINA HERO interna ═══ */
.page-hero { position: relative; padding: calc(var(--header-h) + 3.5rem) 0 3rem; color: var(--text); overflow: hidden; }
.page-hero::before { content: ''; position: absolute; inset: 0; z-index: -2; background: var(--bg); }
.page-hero.with-img::before { background-size: cover; background-position: center; }
.page-hero::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(120deg, rgba(4,14,20,.94), rgba(4,14,20,.7)); }
.page-hero h1 { font-size: clamp(2rem, 4.5vw, 3rem); margin: .5rem 0 .75rem; }
.page-hero p { color: var(--muted); max-width: 60ch; }
.breadcrumb { display: flex; gap: .5rem; flex-wrap: wrap; font-size: .82rem; color: var(--muted); margin-bottom: .5rem; align-items: center; }
.breadcrumb a { color: var(--teal); }

/* ═══ DETALLE DE CURSO (rediseño dinámico) ═══ */
.course-hero { position: relative; color: var(--text); padding: calc(var(--header-h) + 3.5rem) 0 3.5rem; overflow: hidden; isolation: isolate; }
.course-hero::before { content: ''; position: absolute; inset: 0; z-index: -2; background: var(--course-img) center/cover no-repeat; transform: scale(1.05); }
.course-hero::after { content: ''; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(105deg, rgba(4,14,20,.96) 0%, rgba(4,14,20,.82) 45%, rgba(0,36,61,.55) 100%); }
.course-hero-inner { max-width: 820px; }
.course-hero .breadcrumb { margin-bottom: 1.25rem; }
.course-hero-badges { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 1.1rem; }
.pill { font-family: var(--font-display); font-size: .74rem; font-weight: 600; padding: .32rem .8rem; border-radius: 20px; }
.pill.teal { background: rgba(23,179,163,.18); color: var(--teal); border: 1px solid rgba(23,179,163,.45); }
.pill.orange { background: rgba(241,135,24,.18); color: var(--orange); border: 1px solid rgba(241,135,24,.45); }
.course-hero h1 { font-size: clamp(1.9rem, 4.2vw, 3rem); margin-bottom: 1rem; max-width: 20ch; }
.course-hero-sub { color: var(--text); opacity: .92; line-height: 1.7; margin-bottom: 1.8rem; max-width: 60ch; font-size: 1.08rem; }
.course-hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Barra de datos clave */
.course-facts { background: var(--bg-2); border-bottom: 1px solid var(--line); }
.facts-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; padding: 1.5rem 0; }
.fact { display: flex; align-items: center; gap: .9rem; color: var(--text); }
.fact > i { width: 44px; height: 44px; border-radius: 11px; background: rgba(23,179,163,.14); color: var(--teal); display: grid; place-items: center; font-size: 1.1rem; flex: 0 0 auto; }
.fact span { display: block; font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.fact strong { font-family: var(--font-display); font-size: .95rem; }

.course-body-grid { display: grid; grid-template-columns: 1fr 360px; gap: 3.5rem; align-items: start; }
.course-block { margin-bottom: 2.75rem; }
.course-block > .eyebrow { margin-bottom: .5rem; }
.course-block h2 { font-size: 1.5rem; margin-bottom: .8rem; }
.course-block > p { color: var(--muted-ink); line-height: 1.85; font-size: 1.02rem; }
.cert-block { display: flex; gap: 1.25rem; align-items: center; background: linear-gradient(120deg, rgba(23,179,163,.08), rgba(0,36,61,.06));
  border: 1px solid var(--line-ink); border-left: 4px solid var(--teal); border-radius: var(--radius); padding: 1.5rem 1.75rem; margin-bottom: 0; }
.cert-block > i { font-size: 2rem; color: var(--teal-2); }
.cert-block h3 { font-size: 1.15rem; margin-bottom: .25rem; }
.cert-block p { color: var(--muted-ink); margin: 0; line-height: 1.6; }

/* Acordeón plan de estudios */
.accordion { border: 1px solid var(--line-ink); border-radius: var(--radius); overflow: hidden; }
.acc-item { border-bottom: 1px solid var(--line-ink); }
.acc-item:last-child { border-bottom: 0; }
.acc-head { width: 100%; display: flex; align-items: center; gap: 1rem; padding: 1.1rem 1.35rem; background: var(--paper-2); border: 0;
  cursor: pointer; text-align: left; font-family: var(--font-display); transition: background .2s; }
.acc-head:hover { background: var(--paper); }
.acc-num { font-size: .85rem; font-weight: 700; color: var(--teal-2); flex: 0 0 auto; }
.acc-title { flex: 1; font-weight: 600; font-size: 1rem; color: var(--ink); }
.acc-caret { color: var(--muted-ink); transition: transform .3s var(--ease); flex: 0 0 auto; }
.acc-item.open .acc-caret { transform: rotate(180deg); }
.acc-item.open .acc-head { background: var(--paper); }
.acc-body { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); background: var(--paper); }
.acc-item.open .acc-body { max-height: 600px; }
.acc-body ul { margin: 0; padding: .3rem 1.35rem 1.35rem 3.1rem; display: grid; gap: .5rem; }
.acc-body li { color: var(--muted-ink); font-size: .92rem; line-height: 1.5; position: relative; list-style: none; }
.acc-body li::before { content: ''; position: absolute; left: -1.1rem; top: .55em; width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }

.course-aside { position: sticky; top: calc(var(--header-h) + 1.25rem); }
.course-info { background: var(--paper-2); border: 1px solid var(--line-ink); border-radius: var(--radius); padding: 1.75rem; box-shadow: var(--shadow-sm); }
.course-info h3 { font-size: 1.1rem; margin-bottom: 1.1rem; }
.course-info ul { list-style: none; padding: 0; margin: 0 0 1.4rem; }
.course-info li { display: grid; grid-template-columns: 22px 1fr; gap: .3rem .75rem; padding: .75rem 0; border-bottom: 1px solid var(--line-ink); align-items: center; }
.course-info li i { color: var(--teal-2); grid-row: span 2; }
.course-info li span { font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted-ink); }
.course-info li strong { font-family: var(--font-display); font-size: .9rem; }

/* ═══ ACREDITACIONES / CERTIFICACIONES ═══ */
.acred-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.25rem; }
.acred { flex: 0 0 auto; width: 180px; background: var(--paper-2); border: 1px solid var(--line-ink); border-radius: var(--radius); padding: 1.4rem; text-align: center; transition: transform .25s, box-shadow .25s; }
.acred:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.acred img { height: 58px; width: auto; max-width: 100%; object-fit: contain; margin: 0 auto .8rem; }
.acred strong { display: block; font-family: var(--font-display); font-size: .9rem; color: var(--ink); }
.acred p { font-size: .76rem; color: var(--muted-ink); margin: .3rem 0 0; line-height: 1.45; }

/* ═══ EQUIPO ═══ */
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 2rem; max-width: 760px; margin: 0 auto; }
.team-card { text-align: center; }
.team-card img { width: 156px; height: 156px; border-radius: 50%; object-fit: cover; margin: 0 auto 1rem; border: 3px solid var(--teal); }
.team-card strong { display: block; font-family: var(--font-display); font-size: 1.08rem; }
.team-card .role { color: var(--teal-2); font-family: var(--font-display); font-size: .84rem; font-weight: 600; margin-bottom: .5rem; }
.team-card p { font-size: .86rem; color: var(--muted-ink); line-height: 1.6; }

/* ═══ CARDS genéricas (misión/visión/casos) ═══ */
.tri-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; }
.info-card { background: var(--bg-2); color: var(--text); border: 1px solid var(--line); border-radius: var(--radius); padding: 2rem; }
.section-paper .info-card, .section-white .info-card { background: var(--paper-2); color: var(--ink); border-color: var(--line-ink); box-shadow: var(--shadow-sm); }
.info-card .ic { width: 52px; height: 52px; border-radius: 12px; background: var(--teal); color: #04121a; display: grid; place-items: center; font-size: 1.3rem; margin-bottom: 1.1rem; }
.info-card h3 { font-size: 1.2rem; margin-bottom: .6rem; }
.info-card p { color: var(--muted-ink); font-size: .92rem; line-height: 1.65; }
.section-dark .info-card p { color: var(--muted); }

/* ═══ TESTIMONIOS ═══ */
.testi-card { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 2rem; height: 100%; color: var(--text); }
.testi-card .q { color: var(--teal); font-size: 1.8rem; margin-bottom: .8rem; }
.testi-card blockquote { margin: 0 0 1.4rem; font-size: 1.02rem; line-height: 1.65; color: var(--text); }
.testi-card .name { font-family: var(--font-display); font-weight: 600; color: #fff; }
.testi-card .role { color: var(--muted); font-size: .85rem; }
.swiper-pagination-bullet { background: var(--muted); }
.swiper-pagination-bullet-active { background: var(--teal); }

/* ═══ CTA banda ═══ */
.cta-band { background: linear-gradient(120deg, var(--navy), var(--teal-2)); border-radius: var(--radius); padding: clamp(2.5rem, 6vw, 4rem);
  text-align: center; color: #fff; }
.cta-band h3 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); margin-bottom: .6rem; }
.cta-band p { color: rgba(255,255,255,.85); margin-bottom: 1.6rem; }

/* ═══ FORMULARIOS ═══ */
.form { background: var(--paper-2); color: var(--ink); border: 1px solid var(--line-ink); border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow-sm); }
.form h3 { font-size: 1.2rem; margin-bottom: 1.2rem; color: var(--ink); }
.form-row { margin-bottom: 1rem; }
.form-row.two { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form label { display: block; font-family: var(--font-display); font-weight: 600; font-size: .84rem; margin-bottom: .4rem; color: var(--ink); }
.form input, .form select, .form textarea { width: 100%; padding: .8rem .9rem; border: 1px solid var(--line-ink); border-radius: var(--radius-sm);
  font-family: var(--font); font-size: .92rem; color: var(--ink); background: var(--paper); }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--teal); }
.form textarea { min-height: 120px; resize: vertical; }
.consent { display: flex; gap: .6rem; align-items: flex-start; font-size: .82rem; color: var(--muted-ink); margin: .6rem 0 1.1rem; }
.consent input { width: auto; margin-top: .2rem; }
.consent a { color: var(--teal-2); text-decoration: underline; }

/* Formulario embebido en la ficha de curso */
.course-form-wrap { max-width: 760px; margin: 0 auto; }
.course-form-wrap #courseFormCurso { background: rgba(23,179,163,.08); border-color: var(--teal); font-family: var(--font-display); font-weight: 600; color: var(--ink); cursor: default; }

/* Mapa (bloque enlace, sin iframe) */
.map-band { background: linear-gradient(120deg, var(--bg), var(--bg-2)); }
.map-cta { display: block; padding: 2.5rem clamp(1rem,4vw,2.5rem); }
.map-cta-inner { max-width: var(--maxw); margin: 0 auto; display: flex; align-items: center; gap: 1.25rem; color: var(--text); }
.map-cta-inner > i { font-size: 2rem; color: var(--teal); }
.map-cta-inner strong { display: block; font-family: var(--font-display); font-size: 1.05rem; }
.map-cta-inner span { color: var(--teal); font-size: .9rem; display: inline-flex; align-items: center; gap: .4rem; transition: gap .2s; }
.map-cta:hover .map-cta-inner span { gap: .7rem; }

/* Contacto */
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 2.5rem; align-items: start; }
.contact-info { background: var(--bg-2); color: var(--text); border-radius: var(--radius); padding: 2rem; }
.contact-item { display: grid; grid-template-columns: 24px 1fr; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.contact-item:last-child { border-bottom: 0; }
.contact-item i { color: var(--teal); margin-top: .2rem; }
.contact-item strong { font-family: var(--font-display); }
.contact-item a { color: var(--teal); }

/* ═══ CARRUSEL DE CLIENTES (marquee) ═══ */
.marquee-wrap { overflow: hidden; padding: 2.5rem 0; background: var(--bg-2); border-block: 1px solid var(--line); }
.marquee { display: flex; gap: 2.5rem; width: max-content; animation: marquee 55s linear infinite; }
.marquee:hover { animation-play-state: paused; }
.marquee a { flex: 0 0 auto; display: grid; place-items: center; height: 96px; width: 190px; background: #fff; border-radius: 10px; padding: 1rem; }
.marquee img { max-height: 68px; max-width: 100%; object-fit: contain; filter: grayscale(1); opacity: .75; transition: .3s; }
.marquee a:hover img { filter: grayscale(0); opacity: 1; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* Logos grid (clientes) — tamaño ampliado para legibilidad */
.logos-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 1.25rem; }
.logos-grid a { background: var(--paper-2); border: 1px solid var(--line-ink); border-radius: 12px; height: 150px; display: grid; place-items: center; padding: 1.5rem; transition: box-shadow .25s, transform .25s; }
.logos-grid a:hover { box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.logos-grid img { max-height: 100px; max-width: 100%; object-fit: contain; filter: grayscale(1); opacity: .8; transition: .3s; }
.logos-grid a:hover img { filter: grayscale(0); opacity: 1; }

/* ═══ FOOTER ═══ */
.footer { background: #041017; color: var(--muted); padding: clamp(3rem, 6vw, 4.5rem) 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1.4fr 1fr; gap: 2.5rem; }
.footer h4 { color: #fff; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 1.1rem; }
.footer a { display: block; color: var(--muted); font-size: .9rem; padding: .3rem 0; transition: color .2s; }
.footer a:hover { color: var(--teal); }
.footer .brand-blurb { font-size: .9rem; line-height: 1.7; }
.footer .logo-img { height: 40px; margin-bottom: 1.1rem; }
.footer-slogan { color: var(--teal); font-family: var(--font-display); margin-top: 1rem; }
.footer-bottom { border-top: 1px solid var(--line); margin-top: 3rem; padding: 1.5rem 0; font-size: .82rem; color: var(--muted); text-align: center; }
.footer-bottom a { color: var(--muted); display: inline; }

/* ═══ SEARCH OVERLAY ═══ */
.search-overlay { position: fixed; inset: 0; z-index: 300; background: rgba(4,14,20,.97); backdrop-filter: blur(6px);
  opacity: 0; visibility: hidden; transition: .3s; display: flex; align-items: flex-start; justify-content: center; padding-top: 12vh; }
.search-overlay.open { opacity: 1; visibility: visible; }
.search-inner { width: min(680px, 90vw); }
.search-inner input { width: 100%; background: none; border: 0; border-bottom: 2px solid var(--teal); color: #fff; font-family: var(--font-display);
  font-size: clamp(1.4rem, 4vw, 2.2rem); padding: .5rem 0; outline: none; }
.search-close { position: fixed; top: 1.5rem; right: 2rem; background: none; border: 0; color: var(--text); font-size: 2rem; cursor: pointer; }
.search-shortcuts { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 1.5rem; }
.search-shortcuts button { background: rgba(255,255,255,.07); border: 1px solid var(--line); color: var(--muted); padding: .45rem .9rem;
  border-radius: 20px; cursor: pointer; font-family: var(--font-display); font-size: .85rem; }
.search-shortcuts button:hover { border-color: var(--teal); color: var(--teal); }
.search-results { margin-top: 1.75rem; }
.search-results h4 { color: var(--muted); font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; margin: 1rem 0 .5rem; }
.search-result { display: flex; flex-direction: column; padding: .8rem 0; border-bottom: 1px solid var(--line); color: var(--text); }
.search-result:hover { color: var(--teal); }
.search-result span { color: var(--muted); font-size: .82rem; }
.muted-note { color: var(--muted); font-size: .9rem; }
.muted-note a { color: var(--teal); }

/* ═══ MODAL ═══ */
.modal-overlay { position: fixed; inset: 0; z-index: 300; background: rgba(4,14,20,.75); backdrop-filter: blur(4px);
  opacity: 0; visibility: hidden; transition: .25s; display: grid; place-items: center; padding: 1.5rem; }
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal { background: var(--paper-2); color: var(--ink); border-radius: var(--radius); width: min(560px, 100%); max-height: 90vh; overflow: auto; }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--line-ink); }
.modal-head h3 { font-size: 1.15rem; }
.modal-close { background: none; border: 0; font-size: 1.6rem; cursor: pointer; color: var(--muted-ink); }
.modal-body { padding: 1.5rem; }
.modal-course { background: var(--paper); border-radius: var(--radius-sm); padding: 1rem; margin-bottom: 1.25rem; }
.modal-course strong { font-family: var(--font-display); }

/* ═══ WHATSAPP WIDGET ═══ */
.wa { position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 250; }
.wa-btn { width: 60px; height: 60px; border-radius: 50%; background: #25D366; color: #fff; border: 0; font-size: 1.7rem; cursor: pointer;
  box-shadow: 0 10px 30px rgba(37,211,102,.4); display: grid; place-items: center; transition: transform .2s; }
.wa-btn:hover { transform: scale(1.08); }
.wa-panel { position: absolute; bottom: 76px; right: 0; width: 320px; background: var(--paper-2); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(10px); transition: .25s; }
.wa-panel.open { opacity: 1; visibility: visible; transform: translateY(0); }
.wa-head { background: #075E54; color: #fff; padding: 1rem; display: flex; align-items: center; justify-content: space-between; }
.wa-head img { height: 34px; }
.wa-body { padding: 1rem; background: #ECE5DD; }
.wa-bubble { background: #fff; border-radius: 10px; padding: .8rem; font-size: .88rem; color: var(--ink); box-shadow: 0 1px 2px rgba(0,0,0,.1); }
.wa-input { display: flex; gap: .5rem; padding: .75rem; border-top: 1px solid var(--line-ink); }
.wa-input select, .wa-input input { flex: 1; padding: .6rem; border: 1px solid var(--line-ink); border-radius: var(--radius-sm); font-family: var(--font); font-size: .85rem; }
.wa-send { background: #25D366; color: #fff; border: 0; border-radius: var(--radius-sm); padding: 0 .9rem; cursor: pointer; }

/* ═══ COOKIES ═══ */
.cookies { position: fixed; bottom: 1rem; left: 1rem; right: 1rem; max-width: 560px; margin: 0 auto; z-index: 260;
  background: var(--bg-2); color: var(--text); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem; box-shadow: var(--shadow); display: none; }
.cookies.show { display: block; }
.cookies p { font-size: .85rem; color: var(--muted); margin: 0 0 1rem; line-height: 1.6; }
.cookies a { color: var(--teal); }
.cookies-actions { display: flex; gap: .75rem; flex-wrap: wrap; }

/* ═══ TOAST ═══ */
.toast { position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--navy); color: #fff;
  padding: 1rem 1.5rem; border-radius: var(--radius-sm); box-shadow: var(--shadow); opacity: 0; transition: .3s; z-index: 400; font-size: .9rem; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ═══ GRACIAS / LEGAL ═══ */
.gracias { min-height: 72vh; display: grid; place-items: center; text-align: center; padding: calc(var(--header-h) + 3rem) 1.25rem 4rem; }
.gracias .ic { width: 92px; height: 92px; border-radius: 50%; background: var(--teal); color: #04121a; display: grid; place-items: center; font-size: 2.5rem; margin: 0 auto 1.5rem; }
.gracias h1 { font-size: 2.2rem; margin-bottom: .75rem; }
.gracias p { color: var(--muted-ink); max-width: 460px; margin: 0 auto 1.5rem; }
.legal { max-width: 800px; margin: 0 auto; }
.legal h2 { font-size: 1.2rem; margin: 2rem 0 .5rem; }
.legal p, .legal li { color: var(--muted-ink); line-height: 1.75; font-size: .93rem; }

/* ═══ RESPONSIVE ═══ */
@media (max-width: 980px) {
  .itp-nav { display: none; }
  .hamburger { display: flex; }
  .split, .course-body-grid, .contact-grid { grid-template-columns: 1fr; }
  .facts-grid { grid-template-columns: repeat(2, 1fr); }
  .course-aside { position: static; }
  .catalog-layout { grid-template-columns: 1fr; }
  .catalog-aside { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr; gap: .5rem; }
}
@media (max-width: 560px) {
  .form-row.two { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { min-height: 88vh; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .marquee { animation: none; }
}