@font-face {
  font-family: 'Bunken Tech Sans Wide';
  src: url('../fonts/bunkentechsansscwide-heavy.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --rojo: #d6001c;
  --mineral: #6D9192;
  --blanco: #FFFFFF;
  --gris-claro: #f4f4f4;
  --gris-texto: #333333;
  --gris-medio: #666666;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Open Sans', sans-serif;
  color: var(--gris-texto);
  background: var(--blanco);
}

/* ─── NAVBAR ─── */
nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--blanco);
  border-bottom: 3px solid var(--rojo);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 34px;
  height: 64px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.10);
}

.nav-logo {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  text-decoration: none;
  line-height: 0;
}

.nav-logo img {
  display: block;
  width: 165px;
  max-height: 48px;
  height: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  gap: 6px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--gris-texto);
  padding: 8px 14px;
  border-radius: 4px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: background 0.2s, color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--rojo);
  color: var(--blanco);
}

/* BOTÓN HAMBURGUESA */
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 8px;
  background: var(--blanco);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.nav-toggle:hover {
  background: var(--gris-claro);
  border-color: var(--rojo);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--rojo);
  border-radius: 999px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ─── HERO BANNER ─── */
#inicio {
  position: relative;
  width: 100%;
  height: 320px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* IMAGEN BANNER PRINCIPAL */
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(20, 25, 25, 0.72), rgba(20, 25, 25, 0.30)),
    url("../img/site/banner-principal.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(109,145,146,0.08) 0px, rgba(109,145,146,0.08) 1px, transparent 1px, transparent 60px),
    repeating-linear-gradient(0deg, rgba(109,145,146,0.08) 0px, rgba(109,145,146,0.08) 1px, transparent 1px, transparent 60px);
}

.hero-accent {
  position: absolute;
  left: 0;
  top: 0;
  width: 6px;
  height: 100%;
  background: var(--rojo);
}

.hero-content {
  position: relative;
  text-align: center;
  padding: 0 24px;
  max-width: 780px;
}

.hero-content h1 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: clamp(1.1rem, 2.8vw, 1.7rem);
  color: var(--blanco);
  line-height: 1.4;
  letter-spacing: 0.5px;
}

.hero-content h1 span {
  color: var(--mineral);
}

.hero-tagline {
  display: inline-block;
  margin-top: 16px;
  font-size: 0.78rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--rojo);
  border-top: 1px solid rgba(214,0,28,0.4);
  padding-top: 12px;
}

/* ─── SECTIONS COMMON ─── */
section {
  padding: 70px 0;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 30px;
}

.section-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.7rem;
  color: var(--mineral);
  margin-bottom: 40px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--rojo);
  margin-top: 8px;
  border-radius: 2px;
}

/* ─── QUIÉNES SOMOS ─── */
#quienes {
  background: var(--blanco);
}

.quienes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.quienes-text p {
  font-size: 0.97rem;
  line-height: 1.85;
  color: var(--gris-medio);
  margin-bottom: 24px;
}

.quienes-img {
  width: 100%;
  height: auto;
  max-height: 260px;
  object-fit: contain;
  object-position: center;
  background: #ffffff;
  border-radius: 8px;
  display: block;
}

/* ─── VISIÓN Y MISIÓN ─── */
#vision-mision {
  background: var(--gris-claro);
}

.vm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.vm-card {
  background: var(--blanco);
  border-left: 4px solid var(--mineral);
  padding: 28px 24px;
  border-radius: 0 8px 8px 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

.vm-card-img {
  width: 100%;
  height: 230px;
  object-fit: contain;
  object-position: center;
  background: #ffffff;
  border-radius: 0 6px 0 0;
  display: block;
  margin-bottom: 20px;
}

.vm-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--rojo);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.vm-card p {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--gris-medio);
}

/* ─── SERVICIOS ─── */
#servicios {
  background: var(--gris-claro);
}

.servicios-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.servicio-card {
  background: var(--blanco);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(0,0,0,0.07);
  transition: transform 0.25s, box-shadow 0.25s;
}

.servicio-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 32px rgba(214,0,28,0.13);
}

.servicio-icon {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.servicio-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Fondos de respaldo por si una imagen no carga */
.servicio-card:nth-child(1) .servicio-icon {
  background: linear-gradient(135deg, #1a1a1a, #2d3a3a);
}

.servicio-card:nth-child(2) .servicio-icon {
  background: linear-gradient(135deg, #2d3a3a, #3d4e4e);
}

.servicio-card:nth-child(3) .servicio-icon {
  background: linear-gradient(135deg, #1e2e2e, #2d4040);
}

.servicio-card:nth-child(4) .servicio-icon {
  background: linear-gradient(135deg, #252525, #353535);
}

.servicio-body {
  padding: 22px 20px;
  border-top: 3px solid var(--mineral);
}

.servicio-body h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--rojo);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

.servicio-body p {
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--gris-medio);
}

/* ─── PROYECTOS ─── */
#proyectos {
  background: var(--blanco);
}

.proyectos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.proyecto-card {
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  overflow: hidden;
  transition: box-shadow 0.25s, transform 0.25s;
  background: var(--blanco);
}

.proyecto-card:hover {
  box-shadow: 0 8px 28px rgba(214,0,28,0.12);
  transform: translateY(-4px);
}

/* GALERÍA DE PROYECTOS */
.proyecto-galeria {
  position: relative;
  width: 100%;
  height: 190px;
  overflow: hidden;
  background: #f4f4f4;
}

.proyecto-galeria img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.proyecto-galeria img.active {
  display: block;
}

.proyecto-header {
  background: linear-gradient(135deg, var(--rojo), #9a0014);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
}

.proyecto-header::before {
  content: 'âš¡';
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 2.5rem;
  opacity: 0.2;
}

.proyecto-header h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--blanco);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1.5;
}

.proyecto-body {
  padding: 20px 24px;
}

.proyecto-body .cliente-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--mineral);
  margin-bottom: 4px;
  font-family: 'Montserrat', sans-serif;
}

.proyecto-body .cliente-nombre {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--gris-texto);
  margin-bottom: 6px;
}

.proyecto-body .division {
  font-size: 0.82rem;
  color: var(--gris-medio);
  background: var(--gris-claro);
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
}

/* ─── SUCURSALES ─── */
#sucursales {
  background: var(--gris-claro);
}

.sucursales-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.sucursal-card {
  background: var(--blanco);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(0,0,0,0.07);
}

.sucursal-card iframe {
  width: 100%;
  height: 220px;
  border: none;
  display: block;
}

.sucursal-info {
  padding: 24px;
  border-top: 3px solid var(--rojo);
}

.sucursal-info h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--rojo);
  margin-bottom: 12px;
}

.sucursal-info .dato {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
  align-items: flex-start;
}

.sucursal-info .dato-icon {
  font-size: 1rem;
  margin-top: 1px;
  flex-shrink: 0;
  color: var(--mineral);
}

.sucursal-info .dato-text {
  font-size: 0.88rem;
  color: var(--gris-medio);
  line-height: 1.55;
}

/* ─── CONTACTO ─── */
#contacto {
  background: #1a1a1a;
  color: var(--blanco);
}

#contacto .section-title {
  color: var(--blanco);
}

#contacto .section-title::after {
  background: var(--rojo);
}

.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

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

.contacto-form input,
.contacto-form textarea {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 6px;
  padding: 12px 16px;
  color: var(--blanco);
  font-family: 'Open Sans', sans-serif;
  font-size: 0.9rem;
  outline: none;
  transition: border 0.2s;
}

.contacto-form input:focus,
.contacto-form textarea:focus {
  border-color: var(--mineral);
}

.contacto-form textarea {
  resize: vertical;
  min-height: 120px;
}

.contacto-form button {
  background: var(--rojo);
  color: var(--blanco);
  border: none;
  border-radius: 6px;
  padding: 13px 32px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.contacto-form button:hover {
  background: #a80016;
  transform: translateY(-2px);
}

.contacto-info p {
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.7);
  margin-bottom: 20px;
}

.social-links {
  display: flex;
  gap: 14px;
  margin-top: 10px;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 6px;
  color: var(--blanco);
  text-decoration: none;
  font-size: 0.82rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  transition: background 0.2s, border-color 0.2s;
}

.social-link:hover {
  background: var(--mineral);
  border-color: var(--mineral);
}

.social-icon {
  display: inline-block !important;
  width: 18px !important;
  height: 18px !important;
  max-width: 18px !important;
  max-height: 18px !important;
  object-fit: contain !important;
  flex: 0 0 auto;
}

.social-icon-instagram {
  width: 22px !important;
  height: 22px !important;
  max-width: 22px !important;
  max-height: 22px !important;
}

/* ─── FOOTER ─── */
footer {
  background: #111;
  color: rgba(255,255,255,0.4);
  text-align: center;
  padding: 22px;
  font-size: 0.8rem;
  font-family: 'Montserrat', sans-serif;
}

footer a {
  color: var(--mineral);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* ─── DIVIDER ─── */
.red-divider {
  height: 3px;
  background: linear-gradient(90deg, var(--rojo), var(--mineral));
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .servicios-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

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

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

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

  nav {
    padding: 0 20px;
  }

  .nav-links a {
    font-size: 0.72rem;
    padding: 7px 10px;
  }
}

@media (max-width: 768px) {
  nav {
    padding: 0 18px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
    background: rgba(255,255,255,0.98);
    border-bottom: 3px solid var(--rojo);
    box-shadow: 0 14px 28px rgba(0,0,0,0.14);
    padding: 8px 18px 16px;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s ease;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    width: 100%;
    padding: 13px 14px;
    border-radius: 8px;
    font-size: 0.82rem;
  }
}

@media (max-width: 600px) {
  .servicios-grid {
    grid-template-columns: 1fr;
  }

  #inicio {
    height: 260px;
  }

  .hero-content h1 {
    font-size: 1rem;
  }

  .nav-logo img {
    width: 132px;
    max-height: 40px;
  }

  .container {
    padding: 0 22px;
  }

  section {
    padding: 55px 0;
  }

  .proyecto-galeria {
    height: 210px;
  }
}

/* ─── COLABORADORES / CINTA DE LOGOS ─── */
#colaboradores {
  background: var(--blanco);
}

.colaboradores-section {
  padding: 60px 0;
  overflow: hidden;
}

.logos-slider {
  position: relative;
  width: 100%;
  overflow: hidden;
  padding: 18px 0;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 18px rgba(0,0,0,0.06);
}

.logos-slider::before,
.logos-slider::after {
  content: "";
  position: absolute;
  top: 0;
  width: 90px;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.logos-slider::before {
  left: 0;
  background: linear-gradient(90deg, #ffffff, rgba(255,255,255,0));
}

.logos-slider::after {
  right: 0;
  background: linear-gradient(270deg, #ffffff, rgba(255,255,255,0));
}

.logos-track {
  display: flex;
  align-items: center;
  gap: 44px;
  width: max-content;
  animation: moverLogos 28s linear infinite;
}

.logos-slider:hover .logos-track {
  animation-play-state: paused;
}

.logo-item {
  flex: 0 0 auto;
  width: 150px;
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  background: #ffffff;
  border-radius: 10px;
}

.logo-item img {
  max-width: 100%;
  max-height: 58px;
  object-fit: contain;
  display: block;
  filter: none;
  opacity: 1;
  transition: filter 0.25s ease, opacity 0.25s ease, transform 0.25s ease;
}

.logo-item img:hover {
  opacity: 1;
  transform: scale(1.06);
}

@keyframes moverLogos {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }
}

/* RESPONSIVE LOGOS */
@media (max-width: 768px) {
  .logos-track {
    gap: 28px;
    animation-duration: 22s;
  }

  .logo-item {
    width: 125px;
    height: 68px;
    padding: 10px 14px;
  }

  .logo-item img {
    max-height: 48px;
  }

  .logos-slider::before,
  .logos-slider::after {
    width: 45px;
  }
}

/* ─── LETRAS AMSE SOBRE CADA SERVICIO ─── */
.servicio-card {
  position: relative;
  padding-top: 28px;
}

.servicio-letra {
  font-family: 'Bunken Tech Sans Wide', 'Montserrat', sans-serif;
  font-size: clamp(3.2rem, 5vw, 5.2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--rojo);
  text-align: center;
  margin-bottom: 18px;
  letter-spacing: 2px;
}

/* Imagen del servicio */
.servicio-card .servicio-icon {
  margin-top: 0;
}

/* Título del servicio: mantiene fuente anterior */
.servicio-body h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--rojo);
  margin-top: 0;
}

/* Responsive letras AMSE */
@media (max-width: 900px) {
  .servicio-letra {
    font-size: 4rem;
    margin-bottom: 14px;
  }
}

@media (max-width: 600px) {
  .servicio-card {
    padding-top: 22px;
  }

  .servicio-letra {
    font-size: 3.4rem;
    margin-bottom: 12px;
  }
}

/* ─── FLECHAS LATERALES EN PROYECTOS ─── */
.proyecto-flecha {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;

  width: 42px;
  height: 42px;

  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  background: rgba(214, 0, 28, 0.14);
  color: #ffffff;

  font-size: 2rem;
  font-weight: 700;
  line-height: 1;

  display: flex;
  align-items: center;
  justify-content: center;

  cursor: pointer;
  backdrop-filter: blur(4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.10);
  transition: background 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
}

.proyecto-flecha:hover {
  background: rgba(214, 0, 28, 0.38);
  transform: translateY(-50%) scale(1.08);
}

.proyecto-prev {
  left: 12px;
}

.proyecto-next {
  right: 12px;
}

/* Para que las flechas se vean limpias en celular */
@media (max-width: 600px) {
  .proyecto-flecha {
    width: 36px;
    height: 36px;
    font-size: 1.6rem;
    background: rgba(214, 0, 28, 0.16);
  }

  .proyecto-prev {
    left: 8px;
  }

  .proyecto-next {
    right: 8px;
  }
}

/* Ajuste imagen Quiénes Somos en celular */
@media (max-width: 600px) {
  .quienes-img {
    width: 100%;
    height: auto;
    max-height: 220px;
    object-fit: contain;
    object-position: center;
    background-color: #ffffff;
  }

  .quienes-text p {
    font-size: 0.95rem;
    line-height: 1.75;
  }
}
/* ─── MENSAJE FORMULARIO CONTACTO ─── */
.mensaje-formulario {
  display: none;
  padding: 13px 16px;
  border-radius: 6px;
  margin-bottom: 24px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
}

.mensaje-formulario.exito {
  display: block;
  background: rgba(109, 145, 146, 0.18);
  border-left: 4px solid var(--mineral);
  color: #ffffff;
}

.mensaje-formulario.error {
  display: block;
  background: rgba(214, 0, 28, 0.18);
  border-left: 4px solid var(--rojo);
  color: #ffffff;
}

#contacto {
  scroll-margin-top: 90px;
}

.mensaje-formulario {
  display: none;
  width: 100%;
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 26px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.5;
}

.mensaje-formulario.exito {
  display: block;
  background: rgba(109, 145, 146, 0.28);
  border-left: 5px solid var(--mineral);
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.mensaje-formulario.error {
  display: block;
  background: rgba(214, 0, 28, 0.28);
  border-left: 5px solid var(--rojo);
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.amsito-whatsapp {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 1200;
  display: block;
  width: 96px;
  height: auto;
  line-height: 0;
  filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.32));
  transition: transform 0.2s ease, filter 0.2s ease;
}

.amsito-whatsapp:hover {
  transform: translateY(-4px) scale(1.04);
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.38));
}

.amsito-whatsapp img {
  display: block;
  width: 100%;
  height: auto;
}

@media (max-width: 600px) {
  .amsito-whatsapp {
    right: 12px;
    bottom: 12px;
    width: 76px;
  }
}