/* ═══════════════════════════════════════════════════════════════════
   AERODINAMIX LLC — aerodinamix.css  (v11 FINAL)
   ═══════════════════════════════════════════════════════════════════
   CONEXIÓN AL HTML (línea 9 de index.html):
     <link rel="stylesheet" href="aerodinamix.css">

   ¿QUÉ ES CSS? (Para estudiantes de software)
   CSS = "Cascading Style Sheets" (Hojas de Estilo en Cascada).
   El HTML es el ESQUELETO de la página (estructura y contenido).
   El CSS es la ROPA (colores, tamaños, posiciones, animaciones).
   Trabajan juntos: el HTML dice QUÉ hay, el CSS dice CÓMO se ve.

   ÍNDICE DE SECCIONES:
   §1  Variables globales                    → línea  50
   §2  Reset y base                          → línea  72
   §3  Cursor + Canvas                       → línea  90
   §4  Watermark                             → línea 115
   §5  NAVBAR ★ LOGO IZQ del nombre         → línea 125   ← LOGO POS.1
   §6  HERO   ★ LOGO IZQ del título         → línea 210   ← LOGO POS.2
   §7  Secciones genéricas                   → línea 350
   §8  ABOUT  ★ LOGO IZQ del anillo         → línea 390   ← LOGO POS.3
   §9  Certificate                           → línea 430
   §10 Capability                            → línea 490
   §11 Services                              → línea 545
   §12 Borescope + GALERÍA 2 COLUMNAS       → línea 595   ← FOTOS
   §13 NDT                                   → línea 760
   §14 Line Maintenance                      → línea 790
   §15 Process                               → línea 815
   §16 Why Us                                → línea 850
   §17 Contact + Forms                       → línea 895
   §18 Registration                          → línea 960
   §19 FOOTER ★ LOGO IZQ del texto          → línea 1020  ← LOGO POS.4
   §20 Music Player                          → línea 1060
   §21 Admin Panel                           → línea 1085
   §22 DOCUMENTS (tarjetas PDF)              → línea 1100  ← PDFs
   §23 Lightbox                              → línea 1180
   §24 ★★★ RESPONSIVE COMPLETO ★★★         → línea 1210
═══════════════════════════════════════════════════════════════════ */

/* ─── §1  VARIABLES GLOBALES ──────────────────────────────────────
   ESTUDIANTE: Las variables CSS empiezan con "--".
   Se definen en :root (que significa "toda la página").
   Usarlas: var(--nombre). Si cambias una aquí, cambia en todo el sitio.
   ─────────────────────────────────────────────────────────────── */


:root {
  --neon: #00e5ff;
  /* Azul neón principal */
  --neon2: #0077ff;
  /* Azul neón secundario */
  --gold: #c9a84c;
  /* Dorado premium */
  --dark: #020812;
  /* Fondo oscuro principal */
  --dark2: #050f1e;
  /* Fondo oscuro alternativo */
  --glass: rgba(0, 229, 255, .06);
  /* Efecto vidrio translúcido */
  --border: rgba(0, 229, 255, .18);
  /* Borde cyan sutil */
  --text: #c8dff0;
  /* Color de texto general */
  --white: #f0f8ff;
  /* Blanco suave */
}

/* ─── §2  RESET Y BASE ────────────────────────────────────────────
   ESTUDIANTE: El asterisco (*) aplica a TODOS los elementos.
   Eliminamos márgenes y padding por defecto del navegador.
   box-sizing:border-box = el padding no agrega tamaño extra al elemento.
   ─────────────────────────────────────────────────────────────── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Rajdhani', sans-serif;
  background: var(--dark);
  color: var(--text);
  overflow-x: hidden;
  cursor: none;
}

img {
  max-width: 100%;
  display: block;
}

a {
  cursor: none;
}

button {
  cursor: none;
}
h1, h2, h3, .stitle, .htitle {
    overflow-wrap: break-word;
    word-break: keep-all; /* Mantiene la palabra junta si es posible, pero rompe si es necesario */
}

/* ─── §3  CURSOR PERSONALIZADO + CANVAS ESTRELLAS ────────────────
   ESTUDIANTE: Ocultamos el cursor nativo (cursor:none en body) y
   creamos uno propio con un punto cyan y un anillo que sigue al mouse.
   El canvas #adx-stars dibuja las estrellas animadas del fondo.
   ─────────────────────────────────────────────────────────────── */
#adx-cursor {
  position: fixed;
  width: 10px;
  height: 10px;
  background: var(--neon);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  left: -100px;
  top: -100px;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 12px var(--neon), 0 0 24px var(--neon);
}

#adx-ring {
  position: fixed;
  width: 34px;
  height: 34px;
  border: 1.5px solid rgba(0, 229, 255, .55);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  left: -100px;
  top: -100px;
  transform: translate(-50%, -50%);
  transition: left .1s ease, top .1s ease, transform .25s, border-color .25s;
}

#adx-stars {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ─── §4  WATERMARK ───────────────────────────────────────────────
   El logo translúcido de fondo en cada sección.
   opacity:.025 = casi invisible, sutil efecto de marca de agua.
   ─────────────────────────────────────────────────────────────── */
.wm {
  position: absolute;
  inset: 0;
  background: url('logo.png') center / 400px no-repeat;
  opacity: .025;
  pointer-events: none;
  z-index: 0;
}

/* ─── §5  NAVBAR ★ LOGO POSICIÓN 1 ───────────────────────────────
   ★ LOGO INDEX.HTML → línea 63 (imagen dentro de .nl)
   LOGO A LA IZQUIERDA del nombre:
     Clase .nl = flex-direction:row → logo | AERODINAMIX (izq a der)
   LOGO SIN RECUADRO: sin border, sin border-radius, sin background.
   Solo filter:drop-shadow() para el brillo sutil.
   ─────────────────────────────────────────────────────────────── */
#adx-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  height: 68px;
  background: rgba(2, 8, 18, .93);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(14px, 4vw, 48px);
  transition: background .3s;
}

/* ★ .nl = contenedor logo + textos. flex-direction:row = logo IZQUIERDA */
.nl {
  display: flex;
  flex-direction: row;
  /* logo | textos (izquierda → derecha) */
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

/* ★ Logo LIMPIO: SIN border, SIN border-radius, SIN background */
.nl img {
  height: 44px;
  width: 44px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(0, 180, 216, .5));
  /* border:none; border-radius:0; background:transparent; (valores por defecto) */
}

.nl-texts {
  display: flex;
  flex-direction: column;
}

.nl-name {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.88rem, 1.6vw, 1.25rem);
  font-weight: 900;
  color: var(--neon);
  letter-spacing: 4px;
  line-height: 1;
  text-shadow: 0 0 18px rgba(0, 229, 255, .4);
}

.nl-cert {
  font-size: .56rem;
  letter-spacing: 3px;
  color: var(--gold);
  margin-top: 2px;
}

/* Links del menú derecho */
.nr {
  display: flex;
  gap: clamp(6px, 1.4vw, 20px);
  align-items: center;
  flex-wrap: nowrap;
}

.nr a {
  font-family: 'Rajdhani', sans-serif;
  font-size: clamp(.72rem, .85vw, .84rem);
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  position: relative;
  padding: 4px 0;
  transition: color .3s;
  white-space: nowrap;
}

.nr a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--neon);
  transition: width .3s;
}

.nr a:hover {
  color: var(--neon);
}

.nr a:hover::after {
  width: 100%;
}

.nr .cta {
  background: linear-gradient(135deg, var(--neon2), var(--neon)) !important;
  color: #000 !important;
  font-weight: 700 !important;
  padding: 8px 18px !important;
  border-radius: 3px;
  box-shadow: 0 0 14px rgba(0, 229, 255, .3);
}

.nr .cta::after {
  display: none !important;
}

.nr .cta:hover {
  box-shadow: 0 0 28px rgba(0, 229, 255, .6) !important;
  transform: translateY(-1px);
}

.reg-nav-btn {
  font-family: 'Orbitron', sans-serif !important;
  font-size: .62rem !important;
  font-weight: 700 !important;
  letter-spacing: 2px;
  background: rgba(201, 168, 76, .1) !important;
  border: 1px solid rgba(201, 168, 76, .3);
  color: var(--gold) !important;
  padding: 7px 13px !important;
  border-radius: 3px;
}

.reg-nav-btn::after {
  display: none !important;
}

.admin-nav-btn {
  font-family: 'Orbitron', sans-serif;
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: 2px;
  background: rgba(201, 168, 76, .07);
  border: 1px solid rgba(201, 168, 76, .28);
  color: var(--gold);
  padding: 7px 13px;
  border-radius: 3px;
  transition: all .3s;
}

.admin-nav-btn:hover {
  background: rgba(201, 168, 76, .18);
}

/* Hamburguesa móvil */
.hbg {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}

.hbg span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--neon);
  border-radius: 1px;
  transition: all .3s;
}

#mob-nav {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  width: 100%;
  background: rgba(2, 8, 18, .98);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  flex-direction: column;
  z-index: 999;
  max-height: calc(100vh - 68px);
  overflow-y: auto;
}

#mob-nav a {
  padding: 15px 28px;
  font-size: .95rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .06);
  transition: all .3s;
  display: block;
}

#mob-nav a:hover {
  color: var(--neon);
  background: rgba(0, 229, 255, .04);
}

#mob-nav.open {
  display: flex;
}

/* ─── §6  HERO ★ LOGO POSICIÓN 2 ─────────────────────────────────
   ★ LOGO INDEX.HTML → línea 91 (imagen dentro de .hero-title-row)
   LOGO A LA IZQUIERDA del título "AERODINAMIX":
     .hero-title-row = flex-direction:row → logo | AERODINAMIX
   LOGO SIN RECUADRO: solo filter:drop-shadow, sin border ni fondo.
   Responsive con clamp() para escalar en cualquier pantalla.
   ─────────────────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  overflow: hidden;
  padding: 110px clamp(18px, 5vw, 80px) 80px;
  z-index: 1;
}

.hv {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hv video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hov {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg,
      rgba(2, 8, 18, .5) 0%,
      rgba(2, 8, 18, .65) 45%,
      rgba(2, 8, 18, .92) 85%,
      rgba(2, 8, 18, 1) 100%);
}

.hg {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(0, 229, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, .04) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gshift 22s linear infinite;
}

@keyframes gshift {
  to {
    background-position: 0 60px;
  }
}

.hc {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 960px;
}

.hbadge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 229, 255, .08);
  border: 1px solid rgba(0, 229, 255, .25);
  border-radius: 40px;
  padding: 8px clamp(12px, 2.5vw, 22px);
  font-size: clamp(.54rem, .8vw, .7rem);
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--neon);
  margin-bottom: clamp(18px, 3vw, 30px);
  animation: fup .8s ease both;
}

.hbadge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--neon);
  animation: blink 1.5s infinite;
  flex-shrink: 0;
}

/* ★ LOGO IZQ DEL TÍTULO: flex-direction:row → logo | h1 */
.hero-title-row {
  display: flex;
  flex-direction: row;
  /* logo IZQUIERDA + título DERECHA */
  align-items: center;
  justify-content: center;
  gap: clamp(10px, 2.5vw, 26px);
  flex-wrap: wrap;
  margin-bottom: clamp(10px, 2vw, 16px);
  animation: fup .9s .2s ease both;
}

/* ★ Logo LIMPIO en HERO: sin border, sin border-radius, sin background */
.hlogo {
  width: clamp(52px, 9vw, 124px);
  height: clamp(52px, 9vw, 124px);
  object-fit: contain;
  flex-shrink: 0;
  filter: drop-shadow(0 0 28px rgba(0, 180, 216, .55)) drop-shadow(0 0 52px rgba(0, 119, 255, .25));
}

.htitle {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2rem, 7.5vw, 7rem);
  font-weight: 900;
  letter-spacing: clamp(2px, .8vw, 6px);
  line-height: 1;
  background: linear-gradient(135deg, #fff 0%, var(--neon) 45%, var(--neon2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.htag {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.72rem, 1.4vw, 1.05rem);
  letter-spacing: 6px;
  color: var(--gold);
  margin: clamp(8px, 1.5vw, 12px) 0 10px;
  animation: fup .9s .35s ease both;
}

.hsub {
  font-size: clamp(.88rem, 1.3vw, 1.04rem);
  font-weight: 300;
  color: var(--text);
  max-width: 640px;
  margin: 0 auto clamp(12px, 2vw, 18px);
  line-height: 1.88;
  animation: fup .9s .45s ease both;
}

.hpill {
  display: inline-block;
  background: rgba(201, 168, 76, .1);
  border: 1px solid rgba(201, 168, 76, .3);
  border-radius: 4px;
  padding: 7px clamp(10px, 2vw, 18px);
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.5rem, .65vw, .6rem);
  letter-spacing: 2px;
  color: var(--gold);
  margin-bottom: clamp(20px, 3vw, 34px);
  animation: fup .9s .5s ease both;
}

.hbtns {
  display: flex;
  gap: clamp(8px, 1.5vw, 16px);
  justify-content: center;
  flex-wrap: wrap;
  animation: fup .9s .6s ease both;
}

.bp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--neon2), var(--neon));
  color: #000;
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.62rem, .85vw, .76rem);
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  text-decoration: none;
  padding: clamp(10px, 1.5vw, 14px) clamp(16px, 2.5vw, 30px);
  border-radius: 4px;
  border: none;
  box-shadow: 0 0 24px rgba(0, 229, 255, .35);
  transition: all .3s;
  position: relative;
  overflow: hidden;
}

.bp::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, rgba(255, 255, 255, .25), transparent);
  transform: translateX(-100%);
  transition: transform .4s;
}

.bp:hover::after {
  transform: translateX(100%);
}

.bp:hover {
  box-shadow: 0 0 48px rgba(0, 229, 255, .6);
  transform: translateY(-2px);
}

.bo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--neon);
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.62rem, .85vw, .76rem);
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  text-decoration: none;
  padding: clamp(10px, 1.5vw, 14px) clamp(16px, 2.5vw, 30px);
  border-radius: 4px;
  border: 1.5px solid var(--neon);
  transition: all .3s;
  position: relative;
  overflow: hidden;
}

.bo:hover {
  background: rgba(0, 229, 255, .1);
  transform: translateY(-2px);
}

.hero-reg-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(201, 168, 76, .12);
  color: var(--gold);
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.62rem, .85vw, .76rem);
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  text-decoration: none;
  padding: clamp(10px, 1.5vw, 14px) clamp(16px, 2.5vw, 30px);
  border-radius: 4px;
  border: 1.5px solid rgba(201, 168, 76, .4);
  transition: all .3s;
}

.hero-reg-btn:hover {
  background: rgba(201, 168, 76, .22);
  transform: translateY(-2px);
}

.hstats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  min-width: 0;
  margin-top: clamp(28px, 5vw, 60px);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  backdrop-filter: blur(10px);
  background: rgba(0, 20, 50, .6);
  animation: fup .9s .8s ease both;
}

.hs {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: clamp(12px, 2.5vw, 24px) clamp(16px, 3.5vw, 34px);
  text-align: center;
  border-right: 1px solid var(--border);
  flex: 1;
  min-width: 0;
  flex-shrink: 1;
  overflow: hidden;
}

.hs:last-child {
  border-right: none;
}

.hsn {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.2rem, 2.8vw, 1.9rem);
  font-weight: 900;
  color: var(--neon);
  text-shadow: 0 0 16px rgba(0, 229, 255, .5);
  display:inline-block;
  white-space: nowrap;
  font-size: clamp(0.7rem, 2vw, 1.3rem);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hsl {
  font-size: clamp(.52rem, .7vw, .66rem);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text);
  margin-top: 5px;
  display: block;
}

.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  z-index: 2;
  animation: fup 1s 1.1s ease both;
}

.scroll-hint span {
  font-size: .58rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(200, 223, 240, .35);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(var(--neon), transparent);
  animation: spulse 1.6s ease-in-out infinite;
}

/* Keyframes globales */
@keyframes fup {
  from {
    opacity: 0;
    transform: translateY(22px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: .4;
    transform: scale(1.5);
  }
}

@keyframes spulse {

  0%,
  100% {
    transform: scaleY(0);
    transform-origin: top;
  }

  50% {
    transform: scaleY(1);
    transform-origin: top;
  }
}

@keyframes spin {
  from {
    transform: rotate(0);
  }

  to {
    transform: rotate(360deg);
  }
}

/* ─── §7  SECCIONES GENÉRICAS ────────────────────────────────────
   ESTUDIANTE: Usamos clamp(mínimo, preferido, máximo).
   clamp(60px, 8vw, 100px) = nunca menos de 60px, nunca más de 100px.
   8vw = 8% del ancho del viewport. Escala automáticamente con la pantalla.
   ─────────────────────────────────────────────────────────────── */
section {
  position: relative;
  z-index: 2;
}

.sec {
  max-width: 1240px;
  margin: 0 auto;
  padding: clamp(56px, 8vw, 100px) clamp(18px, 4vw, 40px);
}

.stag {
  display: inline-block;
  font-size: clamp(.58rem, .7vw, .66rem);
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--neon);
  background: rgba(0, 229, 255, .07);
  border: 1px solid rgba(0, 229, 255, .2);
  padding: 6px 16px;
  border-radius: 3px;
  margin-bottom: 18px;
}

.stitle {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.45rem, 3.2vw, 2.75rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 14px;
  word-wrap: break-word;     
  overflow-wrap: break-word; 
  hyphens: auto;              
  max-width: 100%;           
  display: block;    
  width: 100%;    
  word-break: break-word;
  white-space: normal;     
}

.stitle span {
  color: var(--neon);
}

.ssub {
  font-size: clamp(.88rem, 1.15vw, 1.04rem);
  font-weight: 300;
  color: var(--text);
  max-width: 560px;
  line-height: 1.86;
}

.div {
  width: 54px;
  height: 3px;
  background: linear-gradient(90deg, var(--neon), var(--neon2));
  margin: 18px 0 36px;
  border-radius: 2px;
}

.gr {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon), transparent);
  opacity: .15;
  position: relative;
  z-index: 2;
}

/* Scroll reveal */
.rv {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s ease, transform .7s ease;
}

.rv.vi {
  opacity: 1;
  transform: translateY(0);
}

/* Grid de 2 columnas adaptable */
.g2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
}

/* ─── §8  ABOUT ★ LOGO POSICIÓN 3 ────────────────────────────────
   ★ LOGO INDEX.HTML → línea 143 (imagen dentro de .alr)
   El logo está en la COLUMNA DERECHA del grid de 2 columnas.
   Esto lo ubica naturalmente a la DERECHA del texto.
   El anillo animado (.alr) rodea el logo con efecto orbital.
   LOGO SIN RECUADRO: sin border, sin border-radius, sin background.
   ─────────────────────────────────────────────────────────────── */
#about {
  background: var(--dark2);
}

.alr {
  width: clamp(200px, 32vw, 300px);
  height: clamp(200px, 32vw, 300px);
  border-radius: 50%;
  border: 1px solid rgba(0, 229, 255, .12);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  margin: 0 auto;
}

.alr::before {
  content: '';
  position: absolute;
  inset: -16px;
  border-radius: 50%;
  border: 1px solid rgba(0, 229, 255, .06);
  animation: spin 18s linear infinite;
}

.alr::after {
  content: '';
  position: absolute;
  inset: -32px;
  border-radius: 50%;
  border: 1px dashed rgba(0, 229, 255, .04);
  animation: spin 28s linear infinite reverse;
}

/* ★ Logo LIMPIO en ABOUT: sin border, sin background */
.alr img {
  width: clamp(130px, 20vw, 200px);
  height: clamp(130px, 20vw, 200px);
  object-fit: contain;
  filter: drop-shadow(0 0 30px rgba(0, 180, 216, .45));
  position: relative;
  z-index: 1;
}

.fl {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 28px;
}

.fl li {
  display: flex;
  gap: 12px;
  font-size: clamp(.86rem, 1.1vw, .98rem);
  line-height: 1.68;
}

.fl li .ico {
  font-size: 1.3rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.vb {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(201, 168, 76, .09);
  border: 1px solid rgba(201, 168, 76, .28);
  border-radius: 6px;
  padding: 14px 18px;
  margin-top: 24px;
}

.vbt {
  font-family: 'Orbitron', sans-serif;
  font-size: .67rem;
  letter-spacing: 2px;
  color: var(--gold);
}

.vbs {
  font-size: .86rem;
  color: var(--text);
  margin-top: 2px;
}

/* ─── §9  CERTIFICATE ────────────────────────────────────────────*/
#cert {
  background: var(--dark);
}

.cdoc {
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: clamp(18px, 3vw, 34px);
  position: relative;
  overflow: hidden;
}

.cdoc::before {
  content: 'OFFICIAL';
  position: absolute;
  top: 18px;
  right: -28px;
  background: linear-gradient(135deg, var(--gold), #a07830);
  color: #000;
  font-family: 'Orbitron', sans-serif;
  font-size: .56rem;
  letter-spacing: 2px;
  padding: 5px 40px;
  transform: rotate(35deg);
  font-weight: 700;
}

.chdr {
  text-align: center;
  margin-bottom: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}

.cgov {
  font-size: clamp(.6rem, .75vw, .7rem);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 3px;
}

.cmain {
  font-size: clamp(1.1rem, 2.3vw, 1.7rem);
  color: var(--white);
  font-weight: 300;
  letter-spacing: 1px;
  font-style: italic;
  margin-bottom: 6px;
}

.cnum {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.95rem, 1.8vw, 1.3rem);
  font-weight: 900;
  color: var(--neon);
  letter-spacing: 3px;
  text-shadow: 0 0 14px rgba(0, 229, 255, .4);
}

.cto {
  font-size: .82rem;
  color: var(--text);
  margin: 8px 0 4px;
  font-style: italic;
}

.cco {
  font-size: clamp(.92rem, 1.4vw, 1.08rem);
  font-weight: 600;
  color: var(--white);
  letter-spacing: 1px;
}

.caddr {
  font-size: .84rem;
  color: var(--text);
  margin-top: 4px;
}

.rtt {
  font-family: 'Orbitron', sans-serif;
  font-size: .62rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin: 16px 0 12px;
}

.rrow {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 15px;
  background: rgba(0, 229, 255, .05);
  border: 1px solid rgba(0, 229, 255, .1);
  border-radius: 5px;
  margin-bottom: 8px;
  flex-wrap: wrap;
  gap: 8px;
}

.rname {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.58rem, .75vw, .7rem);
  color: var(--white);
  letter-spacing: 1px;
}

.rdate {
  font-size: .72rem;
  color: var(--neon);
}

.cval {
  margin-top: 14px;
  padding: 10px 15px;
  background: rgba(201, 168, 76, .08);
  border: 1px solid rgba(201, 168, 76, .2);
  border-radius: 5px;
  font-size: .84rem;
  color: var(--gold);
  text-align: center;
  font-style: italic;
}

.cpts {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.cpts li {
  display: flex;
  gap: 12px;
  font-size: clamp(.84rem, 1.1vw, .95rem);
  line-height: 1.72;
}

.cpts li::before {
  content: '◈';
  color: var(--neon);
  font-size: .66rem;
  margin-top: 5px;
  flex-shrink: 0;
}

/* ─── §10 CAPABILITY ─────────────────────────────────────────────*/
#cap {
  background: var(--dark2);
}

.cig {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: clamp(22px, 4vw, 60px);
  align-items: start;
  margin-bottom: 46px;
}

.cmeta {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 22px;
}

.cmeta-t {
  font-family: 'Orbitron', sans-serif;
  font-size: .64rem;
  letter-spacing: 2px;
  color: var(--gold);
  margin-bottom: 10px;
}

.cmeta-r {
  font-size: .88rem;
  color: var(--text);
  margin-bottom: 6px;
}

.opn {
  background: rgba(201, 168, 76, .07);
  border: 1px solid rgba(201, 168, 76, .2);
  border-radius: 7px;
  padding: 14px 17px;
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 14px;
}

.opn-t {
  font-family: 'Orbitron', sans-serif;
  font-size: .62rem;
  letter-spacing: 2px;
  color: var(--gold);
}

.opn-s {
  font-size: .82rem;
  color: var(--text);
  margin-top: 2px;
}

/* Tablas responsive con scroll horizontal en móvil */
.ctw {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  overflow-x: auto;
  margin-bottom: 22px;
}

.ct {
  width: 100%;
  border-collapse: collapse;
  min-width: 480px;
}

.ct thead tr {
  background: linear-gradient(135deg, rgba(0, 119, 255, .18), rgba(0, 229, 255, .12));
}

.ct th {
  font-family: 'Orbitron', sans-serif;
  font-size: .62rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--neon);
  padding: 15px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.ct td {
  padding: 13px 20px;
  font-size: .9rem;
  border-bottom: 1px solid rgba(0, 229, 255, .06);
  vertical-align: top;
  line-height: 1.65;
}

.ct tr:last-child td {
  border-bottom: none;
}

.ct tr:hover td {
  background: rgba(0, 229, 255, .04);
}

.ccat {
  font-family: 'Orbitron', sans-serif;
  font-size: .64rem;
  letter-spacing: 2px;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 700;
  white-space: nowrap;
}

.stk {
  display: inline-block;
  font-size: .6rem;
  letter-spacing: 1px;
  background: rgba(0, 229, 255, .08);
  border: 1px solid rgba(0, 229, 255, .15);
  color: var(--neon);
  padding: 2px 7px;
  border-radius: 2px;
  margin: 2px;
}

.da {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 7px var(--neon);
  margin-right: 6px;
  vertical-align: middle;
}

.dg {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 7px var(--gold);
  margin-right: 6px;
  vertical-align: middle;
}

.nts {
  font-family: 'Orbitron', sans-serif;
  font-size: .66rem;
  letter-spacing: 3px;
  color: var(--neon);
  margin: 22px 0 13px;
}

/* ─── §11 SERVICES ───────────────────────────────────────────────*/
#svc {
  background: var(--dark);
}

.sig {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: clamp(22px, 4vw, 60px);
  align-items: center;
  margin-bottom: 58px;
}

.s4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 20px;
}

.sc {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: clamp(18px, 2.5vw, 28px) clamp(16px, 2vw, 24px);
  position: relative;
  overflow: hidden;
  transition: all .4s;
}

.sc::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon), transparent);
  transform: scaleX(0);
  transition: transform .4s;
}

.sc:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 229, 255, .42);
  background: rgba(0, 229, 255, .09);
  box-shadow: 0 20px 54px rgba(0, 0, 0, .4);
}

.sc:hover::before {
  transform: scaleX(1);
}

.snum {
  position: absolute;
  top: 18px;
  right: 18px;
  font-family: 'Orbitron', sans-serif;
  font-size: .58rem;
  letter-spacing: 2px;
  color: rgba(0, 229, 255, .3);
}

.sico {
  font-size: 2.4rem;
  margin-bottom: 15px;
  display: block;
}

.sttl {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.76rem, 1.1vw, .86rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.sdsc {
  font-size: clamp(.82rem, 1vw, .91rem);
  font-weight: 300;
  line-height: 1.82;
  color: var(--text);
}

.stgs {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 13px;
}

.stg {
  font-size: .59rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  background: rgba(0, 229, 255, .08);
  border: 1px solid rgba(0, 229, 255, .15);
  color: var(--neon);
  padding: 3px 8px;
  border-radius: 2px;
}

/* ─── §12 BORESCOPE + ★★★ GALERÍA 2 COLUMNAS ★★★ ──────────────
   ESTUDIANTE — CÓMO FUNCIONA EL DISEÑO DE TARJETAS:

   CADA TARJETA DE FOTO TIENE ESTA ESTRUCTURA:
   ┌────────────────────────────────────┐
   │ [BADGE MÉTODO]     [STEP N]        │  ← posición absoluta
   │                                    │
   │    IMAGEN DEL PROCESO (220px alto) │  ← .pg-img-wrap
   │    (zoom suave al hacer hover)     │
   ├────────────────────────────────────┤
   │  ◈ Método técnico del paso        │  ← .pg-method
   │  ────                              │  ← .pg-divline
   │  TÍTULO DEL PASO                  │  ← .pg-title
   │  Descripción técnica breve        │  ← .pg-desc
   └────────────────────────────────────┘

   GRID 2 COLUMNAS:
   .pg-grid { grid-template-columns: 1fr 1fr }
   = dos columnas iguales.
   Columna izquierda: pasos impares (1,3,5,7)
   Columna derecha:   pasos pares   (2,4,6)
   ─────────────────────────────────────────────────────────────── */
#bor {
  background: var(--dark2);
}

.el {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 24px;
}

.ei {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 13px 16px;
  display: flex;
  gap: 14px;
  align-items: center;
  transition: all .3s;
}

.ei:hover {
  border-color: rgba(0, 229, 255, .4);
  background: rgba(0, 229, 255, .09);
  transform: translateX(4px);
}

.eico {
  font-size: 1.65rem;
  flex-shrink: 0;
}

.en {
  font-family: 'Orbitron', sans-serif;
  font-size: .7rem;
  letter-spacing: 1px;
  color: var(--white);
  margin-bottom: 2px;
}

.em {
  font-size: .78rem;
  color: var(--neon);
}

.elim {
  font-size: .73rem;
  color: var(--text);
  font-style: italic;
  margin-top: 2px;
}

.bs {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.bst {
  display: flex;
  gap: 13px;
  align-items: flex-start;
  padding: 16px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: all .3s;
}

.bst:hover {
  border-color: rgba(0, 229, 255, .35);
}

.bsn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon2), var(--neon));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Orbitron', sans-serif;
  font-size: .68rem;
  font-weight: 700;
  color: #000;
  flex-shrink: 0;
}

.bstit {
  font-family: 'Orbitron', sans-serif;
  font-size: .7rem;
  color: var(--white);
  margin-bottom: 4px;
  letter-spacing: 1px;
}

.bsd {
  font-size: .87rem;
  color: var(--text);
  line-height: 1.75;
}

/* Galería: encabezado */
#bor-gallery {
  margin-top: clamp(48px, 7vw, 72px);
}

.pg-header {
  text-align: center;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.pg-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .6rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--neon);
  background: rgba(0, 229, 255, .06);
  border: 1px solid rgba(0, 229, 255, .18);
  padding: 7px 18px;
  border-radius: 40px;
  margin-bottom: 14px;
}

.pg-eyebrow::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--neon);
  animation: blink 1.5s infinite;
}

.pg-heading {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.15rem, 2vw, 1.7rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.pg-heading span {
  color: var(--neon);
}

.pg-subhead {
  font-size: clamp(.8rem, 1vw, .88rem);
  color: var(--text);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.86;
}

/* GALERÍA: GRID 2 COLUMNAS ★ */
/* ESTUDIANTE:
   grid-template-columns:1fr 1fr = divide el ancho en 2 partes iguales.
   "fr" = fracción disponible del espacio.
   Cada columna es un .pg-col con flex-direction:column (tarjetas apiladas).
*/
.pg-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(12px, 1.8vw, 20px);
  align-items: start;
}

.pg-col {
  display: flex;
  flex-direction: column;
  gap: clamp(12px, 1.8vw, 20px);
}

/* Tarjeta individual */
.pg-card {
  background: rgba(5, 15, 30, .78);
  border: 1px solid rgba(0, 229, 255, .1);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  transition: border-color .4s, box-shadow .4s, transform .35s;
}

.pg-card:hover {
  border-color: rgba(0, 229, 255, .38);
  box-shadow: 0 8px 38px rgba(0, 0, 0, .44), 0 0 0 1px rgba(0, 229, 255, .08);
  transform: translateY(-5px);
}

.pg-card.gold {
  border-color: rgba(201, 168, 76, .13);
}

.pg-card.gold:hover {
  border-color: rgba(201, 168, 76, .42);
  box-shadow: 0 8px 38px rgba(0, 0, 0, .44), 0 0 0 1px rgba(201, 168, 76, .1);
}

/* Imagen de la tarjeta — altura fija 220px para uniformidad */
/* ESTUDIANTE: object-fit:cover = la foto llena el cuadro sin distorsión,
   como "background-size:cover". Corta los bordes si es necesario. */
.pg-img-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.pg-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: brightness(.83) saturate(1.06);
  transition: transform .6s ease, filter .4s ease;
}

.pg-card:hover .pg-img-wrap img {
  transform: scale(1.05);
  filter: brightness(.97) saturate(1.16);
}

.pg-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(2, 8, 18, 0) 45%, rgba(2, 8, 18, .72) 100%);
  pointer-events: none;
}

/* Badges en esquinas */
.pg-badge {
  position: absolute;
  top: 11px;
  left: 11px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: 'Orbitron', sans-serif;
  font-size: .5rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  background: rgba(2, 8, 18, .86);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 229, 255, .28);
  color: var(--neon);
  padding: 4px 10px;
  border-radius: 20px;
}

.pg-badge.gold {
  border-color: rgba(201, 168, 76, .35);
  color: var(--gold);
}

.pg-badge::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: currentColor;
  animation: blink 1.5s infinite;
}

.pg-step {
  position: absolute;
  top: 11px;
  right: 11px;
  font-family: 'Orbitron', sans-serif;
  font-size: .56rem;
  letter-spacing: 1px;
  color: rgba(200, 223, 240, .55);
  background: rgba(2, 8, 18, .78);
  padding: 3px 9px;
  border-radius: 3px;
  border: 1px solid rgba(0, 229, 255, .1);
}

/* Footer informativo de la tarjeta */
.pg-info {
  padding: clamp(11px, 1.8vw, 16px) clamp(13px, 1.8vw, 17px) clamp(13px, 1.8vw, 17px);
  border-top: 1px solid rgba(0, 229, 255, .08);
  background: rgba(2, 8, 18, .42);
}

.pg-card.gold .pg-info {
  border-top-color: rgba(201, 168, 76, .1);
}

.pg-method {
  font-size: .56rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--neon);
  margin-bottom: 5px;
  display: flex;
  align-items: center;
  gap: 7px;
}

.pg-method.gold {
  color: var(--gold);
}

.pg-method::before {
  content: '◈';
  font-size: .48rem;
}

.pg-divline {
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--neon), transparent);
  margin: 7px 0;
}

.pg-card.gold .pg-divline {
  background: linear-gradient(90deg, var(--gold), transparent);
}

.pg-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.68rem, .9vw, .78rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: .5px;
  margin-bottom: 5px;
  line-height: 1.35;
}

.pg-desc {
  font-size: clamp(.73rem, .9vw, .8rem);
  color: var(--text);
  line-height: 1.72;
  font-weight: 300;
}

/* CTA bajo galería */
.pg-cta {
  margin-top: clamp(18px, 3vw, 34px);
  text-align: center;
  padding: clamp(16px, 3vw, 26px) clamp(14px, 3vw, 30px);
  background: rgba(0, 229, 255, .03);
  border: 1px solid rgba(0, 229, 255, .1);
  border-radius: 10px;
}

.pg-cta-label {
  font-family: 'Orbitron', sans-serif;
  font-size: .56rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--neon);
  margin-bottom: 8px;
}

.pg-cta-text {
  font-size: .86rem;
  color: var(--text);
  max-width: 480px;
  margin: 0 auto clamp(13px, 2vw, 18px);
  line-height: 1.82;
}

/* ─── §13 NDT ────────────────────────────────────────────────────*/
#ndt {
  background: var(--dark);
}

.ng {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 20px;
  margin-top: 44px;
}

.nc {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: clamp(18px, 2.5vw, 28px);
  transition: all .4s;
}

.nc:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 229, 255, .4);
  box-shadow: 0 14px 46px rgba(0, 0, 0, .35);
}

.nico {
  font-size: 2.4rem;
  margin-bottom: 13px;
  display: block;
}

.nttl {
  font-family: 'Orbitron', sans-serif;
  font-size: .85rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.nstd {
  display: inline-block;
  font-size: .6rem;
  letter-spacing: 1px;
  background: rgba(201, 168, 76, .1);
  border: 1px solid rgba(201, 168, 76, .25);
  color: var(--gold);
  padding: 3px 9px;
  border-radius: 3px;
  margin-bottom: 10px;
}

.ndsc {
  font-size: .88rem;
  color: var(--text);
  line-height: 1.82;
}

.nap {
  list-style: none;
  margin-top: 11px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.nap li {
  font-size: .83rem;
  display: flex;
  gap: 8px;
}

.nap li::before {
  content: '→';
  color: var(--neon);
  flex-shrink: 0;
}

/* ─── §14 LINE MAINTENANCE ───────────────────────────────────────*/
#lm {
  background: var(--dark2);
}

.lg {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 34px;
  margin-top: 44px;
}

.lb {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: clamp(18px, 2.5vw, 28px);
}

.lbt {
  font-family: 'Orbitron', sans-serif;
  font-size: .84rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 1px;
  margin-bottom: 16px;
  display: flex;
  gap: 11px;
  align-items: center;
}

.ll {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ll li {
  display: flex;
  gap: 9px;
  font-size: clamp(.82rem, 1vw, .9rem);
  line-height: 1.66;
}

.ll li::before {
  content: '◆';
  color: var(--neon);
  font-size: .52rem;
  margin-top: 5px;
  flex-shrink: 0;
}

/* ─── §15 PROCESS ────────────────────────────────────────────────*/
#proc {
  background: var(--dark);
}

.pst {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 140px), 1fr));
  gap: 0;
  position: relative;
  margin-top: 52px;
}

.pst::before {
  content: '';
  position: absolute;
  top: 33px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  z-index: 0;
}

.ps {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 clamp(6px, 1.5vw, 14px);
  position: relative;
  z-index: 1;
}

.pn {
  width: 66px;
  height: 66px;
  border-radius: 50%;
  background: var(--dark);
  border: 2px solid var(--neon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Orbitron', sans-serif;
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--neon);
  box-shadow: 0 0 16px rgba(0, 229, 255, .2);
  margin-bottom: 14px;
  transition: all .3s;
}

.ps:hover .pn {
  background: var(--neon);
  color: #000;
  box-shadow: 0 0 32px rgba(0, 229, 255, .5);
}

.pt {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.58rem, .75vw, .68rem);
  letter-spacing: 1px;
  color: var(--white);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.pd {
  font-size: clamp(.76rem, .9vw, .84rem);
  color: var(--text);
  line-height: 1.72;
}

/* ─── §16 WHY US ─────────────────────────────────────────────────*/
#why {
  background: var(--dark2);
}

.wg {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 310px), 1fr));
  gap: clamp(28px, 5vw, 70px);
  align-items: start;
}

.wcs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 190px), 1fr));
  gap: 16px;
  margin-top: 28px;
}

.wc {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 20px;
  transition: all .3s;
}

.wc:hover {
  border-color: rgba(0, 229, 255, .4);
  transform: translateY(-3px);
}

.wci {
  font-size: 1.8rem;
  margin-bottom: 10px;
  display: block;
}

.wct {
  font-family: 'Orbitron', sans-serif;
  font-size: .68rem;
  letter-spacing: 1px;
  color: var(--neon);
  margin-bottom: 7px;
}

.wcd {
  font-size: .87rem;
  color: var(--text);
  line-height: 1.66;
}

.mv {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mvi {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 20px;
}

.mvl {
  font-family: 'Orbitron', sans-serif;
  font-size: .65rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}

.mvt {
  font-size: .92rem;
  color: var(--text);
  line-height: 1.8;
}

.mvvs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.mvv {
  font-size: .65rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  background: rgba(0, 229, 255, .08);
  border: 1px solid rgba(0, 229, 255, .2);
  color: var(--neon);
  padding: 6px 12px;
  border-radius: 3px;
}

/* ─── §17 CONTACT + FORMS ────────────────────────────────────────*/
#contact {
  background: var(--dark);
}

.cog {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 310px), 1fr));
  gap: clamp(28px, 5vw, 70px);
}

.coi {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.cit {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 17px 20px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: all .3s;
}

.cit:hover {
  border-color: rgba(0, 229, 255, .38);
  transform: translateX(4px);
}

.citl {
  font-family: 'Orbitron', sans-serif;
  font-size: .61rem;
  letter-spacing: 2px;
  color: var(--neon);
  margin-bottom: 5px;
}

.civ {
  font-size: .93rem;
  color: var(--text);
  line-height: 1.62;
}

.civ a {
  color: var(--neon);
  text-decoration: none;
}

.cf {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.fr {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
  gap: 13px;
}

.fg {
  display: flex;
  flex-direction: column;
}

.flb {
  font-size: .61rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--neon);
  margin-bottom: 6px;
}

.fin,
.fsel,
.fta {
  background: rgba(0, 15, 35, .72);
  border: 1px solid var(--border);
  color: var(--white);
  font-family: 'Rajdhani', sans-serif;
  font-size: .95rem;
  padding: 12px 14px;
  border-radius: 4px;
  outline: none;
  transition: border-color .3s;
  width: 100%;
}

.fin:focus,
.fsel:focus,
.fta:focus {
  border-color: var(--neon);
}

.fta {
  min-height: 108px;
  resize: vertical;
}

.fsel {
  appearance: none;
}

.fsub {
  background: linear-gradient(135deg, var(--neon2), var(--neon));
  color: #000;
  font-family: 'Orbitron', sans-serif;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 15px 26px;
  border-radius: 4px;
  border: none;
  width: 100%;
  transition: all .3s;
  box-shadow: 0 0 20px rgba(0, 229, 255, .3);
}

.fsub:hover {
  box-shadow: 0 0 40px rgba(0, 229, 255, .55);
  transform: translateY(-2px);
}

/* ─── §18 REGISTRATION ───────────────────────────────────────────*/
#register {
  background: var(--dark2);
}

.reg-type-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 22px;
  max-width: 760px;
  margin: 0 auto 38px;
}

.reg-type-card {
  background: var(--glass);
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: clamp(18px, 3vw, 28px) 22px;
  text-align: center;
  transition: all .3s;
}

.reg-type-card.active {
  border-color: var(--neon);
  background: rgba(0, 229, 255, .08);
}

.rtc-icon {
  font-size: 2.3rem;
  display: block;
  margin-bottom: 11px;
}

.rtc-title {
  font-family: 'Orbitron', sans-serif;
  font-size: .83rem;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.rtc-desc {
  font-size: .86rem;
  color: var(--text);
  line-height: 1.66;
  margin-bottom: 13px;
}

.rtc-badge {
  display: inline-block;
  font-size: .6rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 5px 13px;
  border-radius: 20px;
}

.reg-form-wrap {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: clamp(18px, 3vw, 34px);
  max-width: 880px;
  margin: 0 auto;
}

.reg-form-title {
  font-family: 'Orbitron', sans-serif;
  font-size: .97rem;
  font-weight: 700;
  color: var(--neon);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.reg-form-sub {
  font-size: .88rem;
  color: var(--text);
  line-height: 1.72;
  margin-bottom: 26px;
}

.reg-section-label {
  font-family: 'Orbitron', sans-serif;
  font-size: .61rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--neon);
  margin: 22px 0 13px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.reg-section-label.gold {
  color: var(--gold);
  border-color: rgba(201, 168, 76, .2);
}

.rg2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: 13px;
}

.rg3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 170px), 1fr));
  gap: 13px;
}

.reg-submit {
  background: linear-gradient(135deg, var(--neon2), var(--neon));
  color: #000;
  font-family: 'Orbitron', sans-serif;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 15px 26px;
  border-radius: 4px;
  border: none;
  width: 100%;
  margin-top: 22px;
  transition: all .3s;
  box-shadow: 0 0 20px rgba(0, 229, 255, .3);
}

.reg-submit:hover {
  box-shadow: 0 0 40px rgba(0, 229, 255, .55);
  transform: translateY(-2px);
}

.gold-sub {
  background: linear-gradient(135deg, #a07830, var(--gold)) !important;
  box-shadow: 0 0 20px rgba(201, 168, 76, .3) !important;
}

.success-msg {
  display: none;
  text-align: center;
  padding: 34px;
  margin-top: 18px;
  background: rgba(0, 229, 255, .05);
  border: 1px solid rgba(0, 229, 255, .2);
  border-radius: 8px;
}

.sm-icon {
  font-size: 2.6rem;
  display: block;
  margin-bottom: 11px;
}

.sm-title {
  font-family: 'Orbitron', sans-serif;
  font-size: .97rem;
  color: var(--neon);
  font-weight: 700;
  margin-bottom: 10px;
}

.sm-text {
  font-size: .93rem;
  color: var(--text);
  line-height: 1.76;
}

/* ─── §19 FOOTER ★ LOGO POSICIÓN 4 ──────────────────────────────
   ★ LOGO INDEX.HTML → línea 458 (imagen dentro de .footer-brand-row)
   LOGO A LA IZQUIERDA del texto "AERODINAMIX":
     .footer-brand-row = flex-direction:row → logo | TEXTOS
   LOGO SIN RECUADRO: sin border, sin border-radius, sin background.
   ─────────────────────────────────────────────────────────────── */
#footer {
  background: var(--dark);
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 2;
}

.fg4 {
  max-width: 1240px;
  margin: 0 auto;
  padding: clamp(38px, 6vw, 70px) clamp(18px, 4vw, 40px) 38px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: clamp(22px, 4vw, 46px);
}

/* ★ LOGO IZQ en footer: flex-direction:row = logo | TEXTOS */
.footer-brand-row {
  display: flex;
  flex-direction: row;
  /* logo IZQUIERDA del texto */
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

/* ★ Logo LIMPIO en footer: sin border, sin background */
.footer-brand-row img {
  height: clamp(34px, 4vw, 48px);
  width: clamp(34px, 4vw, 48px);
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(0, 180, 216, .4));
}

.footer-brand-texts {
  display: flex;
  flex-direction: column;
}

.fbn {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.82rem, 1.1vw, .97rem);
  font-weight: 900;
  color: var(--neon);
  letter-spacing: 3px;
}

.fbs {
  font-size: .7rem;
  letter-spacing: 2px;
  color: var(--text);
}

.fbd {
  font-size: .86rem;
  color: var(--text);
  line-height: 1.76;
  margin-bottom: 15px;
}

.fbc {
  font-size: .63rem;
  letter-spacing: 2px;
  color: var(--gold);
  background: rgba(201, 168, 76, .08);
  border: 1px solid rgba(201, 168, 76, .2);
  border-radius: 4px;
  padding: 7px 12px;
  display: inline-block;
}

.fct {
  font-family: 'Orbitron', sans-serif;
  font-size: .68rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--neon);
  margin-bottom: 15px;
}

.fll {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fll a {
  font-size: .86rem;
  color: var(--text);
  text-decoration: none;
  transition: color .3s;
}

.fll a:hover {
  color: var(--neon);
}

.fbot {
  max-width: 1240px;
  margin: 0 auto;
  padding: 20px clamp(18px, 4vw, 40px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
  font-size: clamp(.58rem, .75vw, .7rem);
  letter-spacing: 1px;
  color: rgba(200, 223, 240, .4);
  flex-wrap: wrap;
  gap: 10px;
}

/* ─── §20 MUSIC PLAYER ───────────────────────────────────────────*/
#mp {
  position: fixed;
  bottom: 22px;
  left: 22px;
  z-index: 500;
  background: rgba(2, 8, 18, .88);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 16px;
  box-shadow: 0 4px 22px rgba(0, 0, 0, .4);
}

#mbtn {
  background: var(--neon);
  color: #000;
  border: none;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  font-size: .78rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all .3s;
}

#mbtn:hover {
  background: var(--white);
  transform: scale(1.1);
}

.mi {
  display: flex;
  flex-direction: column;
}

.mit {
  font-family: 'Orbitron', sans-serif;
  font-size: .56rem;
  letter-spacing: 1px;
  color: var(--neon);
}

.mia {
  font-size: .6rem;
  color: var(--text);
}

#mwave {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 16px;
}

#mwave span {
  display: block;
  width: 3px;
  background: var(--neon);
  border-radius: 1px;
  animation: wave .8s ease-in-out infinite;
  opacity: .7;
}

#mwave span:nth-child(2) {
  animation-delay: .1s;
}

#mwave span:nth-child(3) {
  animation-delay: .2s;
}

#mwave span:nth-child(4) {
  animation-delay: .3s;
}

#mwave span:nth-child(5) {
  animation-delay: .4s;
}

@keyframes wave {

  0%,
  100% {
    height: 3px;
  }

  50% {
    height: 14px;
  }
}

#mwave.paused span {
  animation-play-state: paused;
  height: 4px;
}

/* ─── §21 ADMIN PANEL ────────────────────────────────────────────*/
.adx-tab-active {
  background: rgba(0, 229, 255, .12) !important;
  color: var(--neon) !important;
}

#adx-tab-suppliers.adx-tab-active {
  background: rgba(201, 168, 76, .12) !important;
  color: var(--gold) !important;
}

#adx-dashboard table td {
  padding: 12px 15px;
  font-size: .86rem;
  border-bottom: 1px solid rgba(0, 229, 255, .06);
  vertical-align: middle;
  color: var(--text);
}

#adx-dashboard table tr:hover td {
  background: rgba(0, 229, 255, .04);
}

#adx-dashboard table tr:last-child td {
  border-bottom: none;
}

/* ─── §22 ★★★ DOCUMENTS — Tarjetas PDF ★★★ ─────────────────────
   ESTUDIANTE: Cada PDF tiene:
   - Zona de preview (ícono + cuadrícula de fondo)
   - Zona de contenido: eyebrow, título, descripción, metadatos, botones
   - Botón "View" abre el PDF en nueva pestaña (target="_blank")
   - Botón "Download" descarga el PDF (atributo download)
   Los PDFs están en la carpeta docs/ (ver líneas ~405 del HTML).
   ─────────────────────────────────────────────────────────────── */
#documents {
  background: var(--dark);
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: clamp(18px, 3vw, 26px);
  margin-top: clamp(30px, 5vw, 48px);
}

.doc-card {
  background: linear-gradient(135deg, rgba(5, 15, 30, .88), rgba(2, 8, 18, .96));
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: all .4s;
  position: relative;
  display: flex;
  flex-direction: column;
}

.doc-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--neon), transparent);
  opacity: 0;
  transition: opacity .4s;
}

.doc-card:hover {
  border-color: rgba(0, 229, 255, .4);
  box-shadow: 0 16px 58px rgba(0, 0, 0, .5), 0 0 0 1px rgba(0, 229, 255, .1);
  transform: translateY(-6px);
}

.doc-card:hover::before {
  opacity: 1;
}

.doc-preview {
  position: relative;
  height: 200px;
  background: linear-gradient(135deg, rgba(0, 229, 255, .03), rgba(201, 168, 76, .03));
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.doc-preview::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(0, 229, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, .04) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: .5;
}

.doc-icon-stack {
  position: relative;
  z-index: 2;
  text-align: center;
}

.doc-icon {
  font-size: clamp(2.8rem, 5.5vw, 4.2rem);
  filter: drop-shadow(0 0 22px rgba(0, 229, 255, .5));
  margin-bottom: 8px;
  display: block;
}

.doc-icon-label {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.5rem, .65vw, .6rem);
  letter-spacing: 4px;
  color: var(--gold);
}

.doc-content {
  padding: clamp(16px, 2.5vw, 26px);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.doc-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'Orbitron', sans-serif;
  font-size: .56rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  background: rgba(201, 168, 76, .08);
  border: 1px solid rgba(201, 168, 76, .22);
  padding: 5px 12px;
  border-radius: 20px;
  margin-bottom: 13px;
  width: fit-content;
}

.doc-eyebrow::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gold);
  animation: blink 1.5s infinite;
}

.doc-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.88rem, 1.4vw, 1.02rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 1px;
  line-height: 1.35;
  margin-bottom: 8px;
}

.doc-subtitle {
  font-size: clamp(.66rem, .85vw, .76rem);
  color: var(--neon);
  letter-spacing: 1px;
  margin-bottom: 11px;
  font-family: 'Orbitron', sans-serif;
}

.doc-desc {
  font-size: clamp(.8rem, .95vw, .86rem);
  color: var(--text);
  line-height: 1.76;
  margin-bottom: 17px;
  flex: 1;
}

.doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 18px;
}

.doc-meta-item {
  font-size: .58rem;
  letter-spacing: 1px;
  background: rgba(0, 229, 255, .08);
  border: 1px solid rgba(0, 229, 255, .18);
  color: var(--neon);
  padding: 4px 9px;
  border-radius: 3px;
  font-family: 'Orbitron', sans-serif;
}

.doc-actions {
  display: flex;
  gap: 9px;
  flex-wrap: wrap;
}

.doc-btn {
  flex: 1;
  min-width: 120px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(.6rem, .75vw, .68rem);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 11px 16px;
  border-radius: 4px;
  text-decoration: none;
  border: none;
  transition: all .3s;
  white-space: nowrap;
}

.doc-btn-primary {
  background: linear-gradient(135deg, var(--neon2), var(--neon));
  color: #000;
  box-shadow: 0 0 16px rgba(0, 229, 255, .3);
}

.doc-btn-primary:hover {
  box-shadow: 0 0 30px rgba(0, 229, 255, .55);
  transform: translateY(-2px);
}

.doc-btn-secondary {
  background: transparent;
  color: var(--gold);
  border: 1.5px solid rgba(201, 168, 76, .4);
}

.doc-btn-secondary:hover {
  background: rgba(201, 168, 76, .1);
  box-shadow: 0 0 20px rgba(201, 168, 76, .25);
  transform: translateY(-2px);
}

/* ─── §23 LIGHTBOX ───────────────────────────────────────────────*/
#bor-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9500;
  background: rgba(2, 8, 18, .97);
  backdrop-filter: blur(20px);
  align-items: center;
  justify-content: center;
  padding: 22px;
}

#bor-lightbox.open {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

#bor-lb-img {
  max-width: 88vw;
  max-height: 78vh;
  object-fit: contain;
  border-radius: 6px;
  border: 1px solid rgba(0, 229, 255, .18);
  box-shadow: 0 0 60px rgba(0, 229, 255, .1);
}

#bor-lb-close {
  position: fixed;
  top: 20px;
  right: 26px;
  background: rgba(0, 229, 255, .08);
  border: 1px solid rgba(0, 229, 255, .25);
  color: var(--neon);
  font-size: 1.1rem;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .3s;
}

#bor-lb-close:hover {
  background: rgba(0, 229, 255, .22);
  transform: rotate(90deg);
}

.lb-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 229, 255, .07);
  border: 1px solid rgba(0, 229, 255, .22);
  color: var(--neon);
  font-size: 1.2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .3s;
  user-select: none;
}

.lb-nav:hover {
  background: rgba(0, 229, 255, .18);
}

#lb-prev {
  left: 16px;
}

#lb-next {
  right: 16px;
}

#bor-lb-caption {
  font-family: 'Orbitron', sans-serif;
  font-size: .6rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--neon);
  text-align: center;
  background: rgba(2, 8, 18, .82);
  padding: 7px 18px;
  border-radius: 20px;
  border: 1px solid rgba(0, 229, 255, .15);
  max-width: 90vw;
}

/* ─── §24 ★★★ RESPONSIVE COMPLETO ★★★ ──────────────────────────
   ESTUDIANTE: @media es una "consulta de medios".
   @media (max-width: 768px) { ... }
   = "aplica estos estilos SOLO cuando la pantalla sea ≤768px"

   Usamos 4 breakpoints:
   1600px → Smart TV / pantallas grandes
   1024px → Portátiles y tablets horizontales
   768px  → Tablets y móviles grandes
   480px  → Móviles pequeños

   Con clamp() y auto-fit muchas cosas ya son responsive sin @media.
   Los @media son para ajustes específicos que clamp no puede manejar.
   ─────────────────────────────────────────────────────────────── */

/* SMART TV y pantallas ultra-anchas (≥1600px) */
@media (min-width:1600px) {
  .sec {
    max-width: 1440px;
  }

  html {
    font-size: 18px;
  }

  .pg-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Portátiles y tablets horizontales (≤1200px) */
@media (max-width:1200px) {
  .fg4 {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}

/* Tablets (≤1024px) */
@media (max-width:1024px) {
  .pst {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .pst::before {
    display: none;
  }

  .nr {
    gap: 6px;
  }

  .nr a {
    font-size: .72rem;
    letter-spacing: 1.5px;
  }
}

/* Móviles y tablets pequeñas (≤768px) */
@media (max-width:768px) {

  /* Navbar: ocultar menú, mostrar hamburguesa */
  #adx-nav {
    padding: 0 14px;
  }

  .nr {
    display: none;
  }

  .hbg {
    display: flex;
  }

  .nl img {
    height: 36px;
    width: 36px;
  }

  .nl-name {
    font-size: .82rem;
    letter-spacing: 2px;
  }

  /* Hero: logo sobre el título en móvil (más legible) */
  .hero-title-row {
    flex-direction: column;
    gap: 8px;
  }

  .hlogo {
    width: 60px;
    height: 60px;
  }

  .htitle {
    font-size: clamp(1.8rem, 10vw, 3.2rem);
  }

  .hbtns {
    flex-direction: column;
    align-items: center;
  }

  .bp,
  .bo,
  .hero-reg-btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }

  /* Stats: en grilla 2x2 */
  .hstats {
    flex-wrap: wrap;
  }

  .hs {
    border-right: none;
    border-bottom: 1px solid var(--border);
    flex: 1 1 40%;
  }

  .hs:nth-child(2n) {
    border-right: none;
  }

  .hs:last-child,
  .hs:nth-last-child(-n+2):nth-child(odd) {
    border-bottom: none;
  }

  /* Galería: 1 columna en móvil */
  .pg-grid {
    grid-template-columns: 1fr;
  }

  .pg-img-wrap {
    height: 200px;
  }

  /* Documents: 1 columna */
  .docs-grid {
    grid-template-columns: 1fr;
  }

  /* Services: 1 columna */
  .s4 {
    grid-template-columns: 1fr;
  }

  /* NDT: 1 columna */
  .ng {
    grid-template-columns: 1fr;
  }

  /* Process: 2 columnas en tablet */
  .pst {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  /* Footer: 2 columnas */
  .fg4 {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  /* Padding general reducido */
  .sec {
    padding: 48px 16px;
  }

  /* Ocultar ribbon OFFICIAL del certificado */
  .cdoc::before {
    display: none;
  }

  /* Lightbox: botones de nav en pantalla pequeña */
  #lb-prev {
    left: 8px;
  }

  #lb-next {
    right: 8px;
  }

  .lb-nav {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }
}

/* Móviles pequeños (≤480px) */
@media (max-width:480px) {
  .hbadge {
    font-size: .5rem;
    letter-spacing: 2px;
    padding: 6px 12px;
  }

  .stitle {
    font-size: clamp(1.2rem, 7vw, 1.8rem);
  }

  .hero-title-row {
    flex-direction: column;
    gap: 6px;
  }

  .hlogo {
    width: 52px;
    height: 52px;
  }

  .pst {
    grid-template-columns: 1fr;
  }

  .wcs {
    grid-template-columns: 1fr;
  }

  .fg4 {
    grid-template-columns: 1fr;
  }

  .doc-actions {
    flex-direction: column;
  }

  .doc-btn {
    min-width: unset;
  }

  #mp {
    bottom: 12px;
    left: 12px;
    padding: 8px 13px;
    gap: 9px;
  }

  .reg-type-grid {
    grid-template-columns: 1fr;
  }

  .hstats {
    flex-direction: column;
  }

  .hs {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .hs:last-child {
    border-bottom: none;
  }
}


/* --- CORRECCIÓN DE EMERGENCIA: VISIBILIDAD Y LAYOUT --- */
main {
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
  flex: 1;
  min-height: 80vh;
}

section {
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
  padding: 80px 20px;
}

/* Forzar aparición de elementos con scroll-reveal */
.rv {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* Corregir visibilidad del cursor personalizado */
#adx-cursor,
#adx-ring {
  display: block !important;
  visibility: visible !important;
  pointer-events: none;
  z-index: 9999 !important;
}

/* ═══════════════════════════════════════════════════════════════════
   ADICIÓN — WhatsApp Floating Button
   NO modifica ninguna regla existente. Solo agrega.
   Número: +1 (786) 489-8847
═══════════════════════════════════════════════════════════════════ */

.adx-wa-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 9990;
  display: flex;
  align-items: center;
  gap: 9px;
  background: #25D366;
  color: #fff;
  text-decoration: none;
  border-radius: 50px;
  padding: 13px 20px 13px 16px;
  box-shadow: 0 4px 24px rgba(37, 211, 102, .45), 0 2px 8px rgba(0, 0, 0, .35);
  font-family: 'Orbitron', sans-serif;
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: all .3s cubic-bezier(.25, .46, .45, .94);
  overflow: hidden;
  white-space: nowrap;
}

.adx-wa-btn:hover {
  background: #1ebe5c;
  box-shadow: 0 6px 36px rgba(37, 211, 102, .65), 0 2px 12px rgba(0, 0, 0, .4);
  transform: translateY(-3px) scale(1.03);
}

.adx-wa-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.adx-wa-label {
  position: relative;
  z-index: 1;
}

.adx-wa-pulse {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  animation: adx-wa-ring 2.4s ease-out infinite;
  pointer-events: none;
}

@keyframes adx-wa-ring {
  0%   { box-shadow: 0 0 0 0 rgba(37, 211, 102, .55); }
  70%  { box-shadow: 0 0 0 14px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

@media (max-width: 480px) {
  .adx-wa-btn {
    bottom: 18px;
    right: 18px;
    padding: 13px;
    border-radius: 50%;
  }
  .adx-wa-label { display: none; }
}

/* ═══════════════════════════════════════════════════════════════════
   ADICIÓN — PDF Viewer inline (iframes expandibles dentro de tarjeta)
   NO modifica ninguna regla existente. Solo agrega.
═══════════════════════════════════════════════════════════════════ */

.adx-pdf-block {
  margin-top: 14px;
  border: 1px solid rgba(0, 229, 255, .18);
  border-radius: 8px;
  overflow: hidden;
  background: rgba(0, 229, 255, .03);
}

.adx-pdf-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--white);
  font-family: 'Orbitron', sans-serif;
  font-size: .58rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-align: left;
  transition: background .25s;
}

.adx-pdf-toggle:hover {
  background: rgba(0, 229, 255, .07);
}

.adx-pdf-toggle[aria-expanded="true"] {
  background: rgba(0, 229, 255, .06);
  border-bottom: 1px solid rgba(0, 229, 255, .18);
  color: var(--neon);
}

.adx-pdf-toggle-icon {
  font-size: 1rem;
  flex-shrink: 0;
}

.adx-pdf-toggle-label {
  flex: 1;
}

.adx-pdf-toggle-arrow {
  font-size: .6rem;
  color: var(--neon);
  transition: transform .3s;
  flex-shrink: 0;
}

.adx-pdf-toggle[aria-expanded="true"] .adx-pdf-toggle-arrow {
  transform: rotate(180deg);
}

.adx-pdf-panel {
  display: none;
  flex-direction: column;
  gap: 0;
}

.adx-pdf-panel.adx-open {
  display: flex;
}

.adx-pdf-iframe {
  width: 100%;
  height: 420px;
  border: none;
  display: block;
  background: #fff;
}

.adx-pdf-actions {
  display: flex;
  gap: 9px;
  padding: 12px 14px;
  border-top: 1px solid rgba(0, 229, 255, .12);
  flex-wrap: wrap;
}

.adx-pdf-actions .doc-btn {
  flex: 1;
  min-width: 110px;
}

@media (max-width: 600px) {
  .adx-pdf-iframe { height: 320px; }
}