/* Esto es para que todos los elementos y sus hijos usen el mismo sistema de caja */
*, *::before, *::after {
  box-sizing: border-box;
}

/* Botón menú hamburguesa */
.menu-toggle {
  margin-left: auto;
  width: 40px;
  height: 32px;
  background: transparent;
  border: none;
  padding: 6px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  height: 3px;
  background: #0b3b8c;
  border-radius: 2px;
}

/* Panel lateral derecho */
.side-menu {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background: #000000;
  box-shadow: -2px 0 12px rgba(0,0,0,0.12);
  transition: right 0.2s ease;
  padding: 80px 24px 24px;
  z-index: 1100;
}
.side-menu.open { right: 0; }
.side-menu nav { margin: 0 -24px; }
.side-menu nav a {
  display: block;
  padding: 12px 24px;
  color: #0b3b8c;
  text-decoration: none;
  border-radius: 0;
  transition: background 0.2s ease, color 0.2s ease;
  text-transform: uppercase;
  width: 100%;
}
.side-menu nav a:hover,
.side-menu nav a:focus {
  background: #0b3b8c;
  color: #ffffff;
}

/* Backdrop */
.side-menu {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100%;
    background: #121212;
    box-shadow: -2px 0 12px rgba(0,0,0,0.5);
    transition: right 0.2s ease;
    padding: 80px 24px 24px;
    z-index: 1100;
}
.side-menu.open { right: 0; }
.side-menu nav a {
    display: block;
    padding: 12px 24px;
    color: #ffffff;
    text-decoration: none;
    text-transform: uppercase;
    transition: 0.3s;
}
.side-menu nav a:hover {
    background: #2196f3;
    color: white;
}

.side-menu-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    opacity: 0;
    transition: 0.2s ease;
}
.side-menu-backdrop.show { opacity: 1; }

/* Tipografía base del sitio, con scroll suave y colores claros */
html {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  scroll-behavior: smooth; /* hace que el desplazamiento entre secciones sea suave */
  font-size: 16px;
  color-scheme: light;
}

/* El cuerpo ocupa toda la altura, y se organiza como rejilla con header-arriba, contenido y footer */
body {
  margin: 0;
  min-height: 100vh;
  background: #fafafa;
  color: #1f2937;
  display: grid;
  grid-template-rows: 64px 1fr auto; /* header, contenido, footer */
  overflow-y: scroll;
  -webkit-font-smoothing: antialiased; /* suaviza tipografía en Mac */
  -moz-osx-font-smoothing: grayscale; /* igual que el de arriba pero para Mac */
}

/* Enlaces normales con transición suave al pasar el cursor */
a {
  color: #3b82f6;
  text-decoration: none;
  transition: color 0.3s ease;
}

/* Hover y focus para los links */
a:hover, a:focus {
  color: #2563eb;
  outline: none;
}

/* Para que los botones usen la misma letra que el resto */
button {
  font-family: inherit;
  cursor: pointer;
}

/* Inputs y áreas de texto con misma fuente */
input, textarea {
  font-family: inherit;
  font-size: 1rem;
  color: #1f2937;
}

/* Estilito fino para la barra de scroll */
body::-webkit-scrollbar {
  width: 12px;
}
body::-webkit-scrollbar-track {
  background: #f3f4f6;
  border-radius: 6px;
}
body::-webkit-scrollbar-thumb {
  background: #3b82f6cc;
  border-radius: 6px;
  border: 3px solid #f3f4f6;
  transition: background 0.3s ease;
}
body::-webkit-scrollbar-thumb:hover {
  background: #2563ebcc;
}

/* ==== HEADER (esa barra superior pegada) ==== */
header {
  position: sticky; /* se queda pegado arriba al hacer scroll */
  top: 0;
  height: 64px;
  backdrop-filter: saturate(180%) blur(16px); /* le da ese fondo como desenfocado */
  background: rgba(255 255 255 / 0.85);
  border-bottom: 1px solid #e5e7eb;
  display: flex;
  align-items: center;
  padding: 0 24px;
  z-index: 1000;
  box-shadow: 0 1px 4px rgb(0 0 0 / 0.05); /* sombrita suave abajo */
}

.brand {
  display: flex;
  align-items: center;
  font-weight: 800;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: #0b3b8c;
  letter-spacing: 0.05em;
  user-select: none;
  flex-shrink: 0;
  gap: 12px;
}

/* Icono de rayo al lado del nombre */
.brand .material-icons {
  font-size: 32px;
  margin-right: 8px;
  color: #3b82f6;
}

/* Avatar redondo en el header */
.header-avatar {
    width: 175px;
    height: 100px;
    object-fit: cover;
}

/* ==== CONTENIDO PRINCIPAL ====
   (restaurado: estilos del contenedor principal debajo del header) */
main.content {
  flex-grow: 1;
  padding: 32px 48px;
  min-height: calc(100vh - 64px);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 64px;
  background: #f9fafb;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

/* === BASE Y FONDO GLOBAL === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', sans-serif;
  /* Imagen de fondo oficial EcoVolt */
  background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url("fondo.png");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
  color: #1e293b;
  line-height: 1.6;
  min-height: 100vh;
}

/* === HEADER (Mismo estilo que el resto del sitio) === */
header {
  position: sticky;
  top: 0;
  height: 64px;
  backdrop-filter: saturate(180%) blur(16px);
  background: rgba(0, 0, 0, 0.85);
  border-bottom: 1px solid #2196f3;
  display: flex;
  align-items: center;
  padding: 0 24px;
  z-index: 1000;
}

.brand {
  display: flex;
  align-items: center;
  font-weight: 800;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: #ffffff;
  gap: 12px;
}

.header-avatar {
    width: 175px;
    height: 100px;
    object-fit: cover;
}

/* === SECCIONES (EFECTO CRISTAL / BLANCO TRASLÚCIDO) === */
section#innovation, section#contact {
  background: rgba(0, 0, 0, 0.95); /* Blanco con transparencia */
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  max-width: 900px;
  margin: 40px auto;
  display: block;
  color: #ebebeb;
}

#innovation h2, #contact h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin-bottom: 16px;
  font-weight: 800;
  color: #0b3b8c;
}

/* === GALERÍA DE INNOVACIÓN === */
#innovation .media-gallery {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}

#innovation .media-gallery img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 4px 14px rgba(33, 150, 243, 0.3);
  transition: transform 0.3s ease;
}

#innovation .media-gallery img:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(33, 150, 243, 0.5);
}

/* === FORMULARIO DE CONTACTO === */
#contact form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 100%;
}

#contact input, #contact textarea {
  background: #171717;
  border: 1.5px solid #cbd5e1;
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 1rem;
  transition: all 0.3s ease;
}

#contact input:focus, #contact textarea:focus {
  border-color: #373737;
  background: rgb(68, 68, 68);
  outline: none;
  box-shadow: 0 0 8px rgba(33, 150, 243, 0.3);
}

#contact .btn-submit {
  background: linear-gradient(135deg, #161616, #171717);
  color: white;
  border: none;
  border-radius: 12px;
  padding: 14px 36px;
  font-weight: 700;
  font-size: 1.125rem;
  cursor: pointer;
  transition: transform 0.3s ease, background 0.3s ease;
  align-self: flex-start;
}

#contact .btn-submit:hover {
  background: #8e8e8e;
  transform: translateY(-2px);
}

/* === INFO DE CONTACTO Y BOTONES EXTRA === */
.contact-info .info-item .material-icons {
  color: #ffffff;
}

.subscribe-button {
  background: #1a1a1a;
  color: rgb(55, 55, 55);
  border-radius: 12px;
  padding: 12px 30px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: 0.3s;
}

.subscribe-button:hover {
  background: #059669;
}

/* === FOOTER === */
footer {
  background: rgba(0, 0, 0, 0.9);
  color: #404040;
  padding: 20px 48px;
  display: flex;
  justify-content: center;
  border-top: 1px solid #2196f3;
  width: 100%;
  margin-top: 40px;
}

footer p {
  color: #888;
}