/* ============================================================
   Light Green — style.css
   Paleta: verde tecnológico sobre oscuro
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@300;400;600;700;800&family=Nunito:wght@300;400;500;600&display=swap');

:root {
    --verde:       #5cb85c;
    --verde-claro: #8BC34A;
    --verde-oscuro:#3d7a3d;
    --negro:       #0a120a;
    --oscuro:      #111b11;
    --gris-oscuro: #1a241a;
    --gris-medio:  #2a352a;
    --gris-claro:  #8a9a8a;
    --blanco:      #f0f5f0;
    --texto:       #cdd8cd;
    --borde:       rgba(92,184,92,0.15);
    --sombra:      0 4px 24px rgba(0,0,0,0.4);
    --radio:       6px;
    --transicion:  0.3s ease;
    --font-titulo: 'Barlow Condensed', sans-serif;
    --font-cuerpo: 'Nunito', sans-serif;
}

/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background: var(--negro);
    color: var(--texto);
    font-family: var(--font-cuerpo);
    font-size: 16px;
    line-height: 1.65;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--verde); text-decoration: none; transition: color var(--transicion); }
a:hover { color: var(--verde-claro); }
ul { list-style: none; }

/* ── Tipografía ────────────────────────────────────────── */
h1,h2,h3,h4,h5 {
    font-family: var(--font-titulo);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--blanco);
}
h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.8rem); }

.seccion-titulo {
    text-align: center;
    margin-bottom: 3rem;
}
.seccion-titulo h2 { margin-bottom: .5rem; }
.seccion-titulo p  { color: var(--gris-claro); font-size: 1.05rem; }
.seccion-titulo .linea {
    width: 60px; height: 3px;
    background: var(--verde);
    margin: 1rem auto 0;
    border-radius: 2px;
}

/* ── Botones ───────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .75rem 1.8rem;
    border-radius: var(--radio);
    font-family: var(--font-titulo);
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: .05em;
    text-transform: uppercase;
    transition: all var(--transicion);
    cursor: pointer;
    border: none;
}
.btn-primary {
    background: var(--verde);
    color: var(--negro);
}
.btn-primary:hover {
    background: var(--verde-claro);
    color: var(--negro);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(92,184,92,0.35);
}
.btn-outline {
    background: rgba(10,18,10,0.35);
    color: #ffffff;
    border: 2px solid rgba(255,255,255,0.75);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    text-shadow: 0 1px 3px rgba(0,0,0,0.6);
}
.btn-outline:hover {
    background: rgba(10,18,10,0.6);
    border-color: var(--verde);
    color: var(--verde-claro);
    transform: translateY(-2px);
}

/* ── Navbar ────────────────────────────────────────────── */
#navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    transition: background var(--transicion), padding var(--transicion), backdrop-filter var(--transicion);
}
#navbar.scrolled {
    background: rgba(10,18,10,0.95);
    backdrop-filter: blur(12px);
    padding: .6rem 2rem;
    border-bottom: 1px solid var(--borde);
}
.nav-logo img { height: 48px; }
.nav-logo span {
    font-family: var(--font-titulo);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--verde);
    letter-spacing: .05em;
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}
.nav-menu a {
    font-family: var(--font-titulo);
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--blanco);
    padding: .3rem 0;
    border-bottom: 2px solid transparent;
    transition: all var(--transicion);
}
.nav-menu a:hover,
.nav-menu a.activo {
    color: var(--verde);
    border-bottom-color: var(--verde);
}
.nav-cta {
    padding: .5rem 1.3rem !important;
    background: var(--verde) !important;
    color: var(--negro) !important;
    border-radius: var(--radio) !important;
    border-bottom: none !important;
}
.nav-cta:hover {
    background: var(--verde-claro) !important;
    color: var(--negro) !important;
}

/* Burger */
.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: .3rem;
}
.burger span {
    display: block;
    width: 26px; height: 2px;
    background: var(--blanco);
    border-radius: 2px;
    transition: all var(--transicion);
}
.burger.abierto span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.abierto span:nth-child(2) { opacity: 0; }
.burger.abierto span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero Video ─────────────────────────────────────────── */
#inicio {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    isolation: isolate;
}
.hero-video-wrap {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero-video-wrap video {
    width: 100%; height: 100%;
    object-fit: cover;
}
.hero-video-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(10,18,10,0.88) 0%,
        rgba(10,18,10,0.68) 50%,
        rgba(10,18,10,0.82) 100%
    );
}
/* Poster fallback (sin video aún) */
.hero-poster {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: linear-gradient(135deg, #0a120a 0%, #1a2e1a 50%, #0d1a0d 100%);
}
.hero-poster::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(92,184,92,0.08) 0%, transparent 60%);
}
.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 8rem 2rem 4rem;
    margin-left: 8vw;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: rgba(92,184,92,0.15);
    border: 1px solid rgba(92,184,92,0.3);
    border-radius: 50px;
    padding: .4rem 1rem;
    font-family: var(--font-titulo);
    font-size: .85rem;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--verde-claro);
    margin-bottom: 1.5rem;
}
.hero-badge span { width:8px; height:8px; background:var(--verde); border-radius:50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.4;transform:scale(1.4)} }

.hero-content h1 { margin-bottom: 1.2rem; }
.hero-content h1 em {
    font-style: normal;
    color: var(--verde);
}
.hero-content p {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--texto);
    margin-bottom: 2rem;
    max-width: 560px;
}
.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-stats {
    position: absolute;
    bottom: 3rem; left: 8vw;
    z-index: 1;
    display: flex;
    gap: 3rem;
}
.hero-stat strong {
    display: block;
    font-family: var(--font-titulo);
    font-size: 2rem;
    font-weight: 800;
    color: var(--verde);
    line-height: 1;
}
.hero-stat span { font-size: .8rem; color: var(--gris-claro); text-transform: uppercase; letter-spacing: .1em; }

/* Scroll hint */
.hero-scroll {
    position: absolute;
    bottom: 2rem; right: 3rem;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .4rem;
    font-size: .72rem;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--gris-claro);
    opacity: .7;
}
.hero-scroll-line {
    width: 1px; height: 50px;
    background: linear-gradient(to bottom, var(--verde), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine { 0%{opacity:0;transform:scaleY(0);transform-origin:top} 50%{opacity:1;transform:scaleY(1)} 100%{opacity:0;transform:scaleY(1);transform-origin:bottom} }

/* ── Secciones generales ───────────────────────────────── */
.seccion {
    padding: 6rem 2rem;
    max-width: 1280px;
    margin: 0 auto;
}
.seccion-full {
    padding: 6rem 0;
    background: var(--oscuro);
}
.seccion-full .seccion { padding-top: 0; padding-bottom: 0; }

/* ── Categorías ─────────────────────────────────────────── */
#categorias { background: var(--oscuro); }

.categorias-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
}
.cat-card {
    background: var(--gris-oscuro);
    border: 1px solid var(--borde);
    border-radius: var(--radio);
    overflow: hidden;
    transition: transform var(--transicion), border-color var(--transicion), box-shadow var(--transicion);
    cursor: pointer;
}
.cat-card:hover {
    transform: translateY(-6px);
    border-color: var(--verde);
    box-shadow: 0 12px 40px rgba(92,184,92,0.15);
}
.cat-card-img {
    height: 180px;
    overflow: hidden;
    position: relative;
    background: var(--gris-medio);
}
.cat-card-img img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}
.cat-card:hover .cat-card-img img { transform: scale(1.06); }
.cat-card-img .cat-icono {
    position: absolute;
    bottom: .8rem; right: .8rem;
    width: 44px; height: 44px;
    background: var(--verde);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem;
}
.cat-card-body { padding: 1.2rem; }
.cat-card-body h3 { font-size: 1.2rem; margin-bottom: .4rem; }
.cat-card-body p  { font-size: .87rem; color: var(--gris-claro); line-height: 1.5; }

/* ── Productos destacados ───────────────────────────────── */
#catalogo { padding: 6rem 2rem; }

.productos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}
.prod-card {
    background: var(--gris-oscuro);
    border: 1px solid var(--borde);
    border-radius: var(--radio);
    overflow: hidden;
    transition: transform var(--transicion), box-shadow var(--transicion);
}
.prod-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 48px rgba(92,184,92,0.12);
}
.prod-card-img {
    height: 220px;
    overflow: hidden;
    background: var(--gris-medio);
    display: flex; align-items: center; justify-content: center;
}
.prod-card-img img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}
.prod-card:hover .prod-card-img img { transform: scale(1.05); }
.prod-card-badge {
    display: inline-block;
    background: var(--gris-medio);
    color: var(--verde-claro);
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: .25rem .7rem;
    border-radius: 3px;
    margin-bottom: .6rem;
}
.prod-card-body { padding: 1.5rem; }
.prod-card-body h3 { font-size: 1.25rem; margin-bottom: .4rem; }
.prod-card-body p  { font-size: .88rem; color: var(--gris-claro); margin-bottom: 1rem; }
.prod-card-codigo {
    font-family: var(--font-titulo);
    font-size: .8rem;
    font-weight: 600;
    color: var(--verde);
    letter-spacing: .12em;
    text-transform: uppercase;
    margin-bottom: .5rem;
}

/* ── Proyectos ─────────────────────────────────────────── */
#proyectos { background: var(--oscuro); }

.proyectos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.8rem;
}
.proy-card {
    position: relative;
    border-radius: var(--radio);
    overflow: hidden;
    background: var(--gris-oscuro);
    border: 1px solid var(--borde);
    transition: transform var(--transicion), box-shadow var(--transicion);
}
.proy-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 14px 44px rgba(0,0,0,0.5);
}
.proy-card-img {
    height: 200px;
    overflow: hidden;
    background: var(--gris-medio);
}
.proy-card-img img { width:100%; height:100%; object-fit:cover; transition: transform .5s ease; }
.proy-card:hover .proy-card-img img { transform: scale(1.06); }
.proy-tipo {
    position: absolute;
    top: 1rem; left: 1rem;
    background: var(--verde);
    color: var(--negro);
    font-family: var(--font-titulo);
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    padding: .3rem .8rem;
    border-radius: 3px;
}
.proy-card-body { padding: 1.3rem; }
.proy-card-body h3 { font-size: 1.1rem; margin-bottom: .4rem; }
.proy-card-body p  { font-size: .85rem; color: var(--gris-claro); margin-bottom: .8rem; }
.proy-kwh {
    font-family: var(--font-titulo);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--verde);
}
.proy-kwh small { font-size: .75rem; color: var(--gris-claro); font-weight: 400; margin-left: .3rem; }

/* ── Quiénes Somos ─────────────────────────────────────── */
#quienes {
    padding: 6rem 2rem;
    max-width: 1280px;
    margin: 0 auto;
}
.quienes-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}
.quienes-img {
    border-radius: var(--radio);
    overflow: hidden;
    aspect-ratio: 4/3;
    background: var(--gris-medio);
}
.quienes-img img { width:100%; height:100%; object-fit: cover; }
.quienes-texto h2 { margin-bottom: .8rem; }
.quienes-texto > p { color: var(--texto); margin-bottom: 1.5rem; line-height: 1.8; }
.quienes-mv { display: grid; gap: 1.2rem; margin-bottom: 2rem; }
.quienes-mv-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1rem 1.2rem;
    background: var(--gris-oscuro);
    border-left: 3px solid var(--verde);
    border-radius: 0 var(--radio) var(--radio) 0;
}
.quienes-mv-item span.icono { font-size: 1.4rem; }
.quienes-mv-item h4 { font-size: 1rem; color: var(--verde-claro); margin-bottom: .3rem; }
.quienes-mv-item p  { font-size: .87rem; color: var(--gris-claro); }

.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    background: var(--oscuro);
    padding: 3rem 2rem;
    text-align: center;
}
.stat-item strong {
    display: block;
    font-family: var(--font-titulo);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--verde);
}
.stat-item p { font-size: .82rem; color: var(--gris-claro); text-transform: uppercase; letter-spacing: .08em; }

/* ── Página Productos ──────────────────────────────────── */
.page-hero {
    padding: 8rem 2rem 4rem;
    background: linear-gradient(180deg, var(--negro) 0%, var(--oscuro) 100%);
    text-align: center;
    border-bottom: 1px solid var(--borde);
}
.page-hero h1 { margin-bottom: .8rem; }
.page-hero p   { color: var(--gris-claro); font-size: 1.05rem; }

.filtros-cats {
    display: flex;
    flex-wrap: wrap;
    gap: .8rem;
    justify-content: center;
    padding: 2.5rem 2rem;
    background: var(--oscuro);
    border-bottom: 1px solid var(--borde);
    position: sticky;
    top: 64px;
    z-index: 100;
}
.filtro-btn {
    font-family: var(--font-titulo);
    font-size: .9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    padding: .5rem 1.3rem;
    border-radius: 50px;
    border: 1px solid var(--borde);
    background: transparent;
    color: var(--gris-claro);
    cursor: pointer;
    transition: all var(--transicion);
}
.filtro-btn:hover,
.filtro-btn.activo {
    background: var(--verde);
    color: var(--negro);
    border-color: var(--verde);
}

/* ── Ficha Producto ────────────────────────────────────── */
.ficha-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
    padding: 5rem 2rem;
    max-width: 1280px;
    margin: 0 auto;
}
.ficha-galeria-principal {
    border-radius: var(--radio);
    overflow: hidden;
    background: var(--gris-medio);
    aspect-ratio: 4/3;
}
.ficha-galeria-principal img { width:100%; height:100%; object-fit:contain; padding:1rem; }
.ficha-galeria-thumbs { display:flex; gap:.5rem; margin-top:.8rem; }
.ficha-galeria-thumbs img {
    width: 70px; height: 70px;
    object-fit: cover;
    border-radius: 4px;
    border: 2px solid transparent;
    cursor: pointer;
    opacity: .6;
    transition: all var(--transicion);
}
.ficha-galeria-thumbs img.activo,
.ficha-galeria-thumbs img:hover { border-color: var(--verde); opacity: 1; }

.ficha-info .prod-cat {
    font-family: var(--font-titulo);
    font-size: .82rem;
    font-weight: 700;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--verde);
    margin-bottom: .5rem;
}
.ficha-info h1 { font-size: clamp(1.8rem,3vw,2.5rem); margin-bottom: 1rem; }
.ficha-info .descripcion { color: var(--texto); line-height: 1.8; margin-bottom: 2rem; }

.specs-tabla { width: 100%; border-collapse: collapse; margin-bottom: 2rem; }
.specs-tabla caption {
    font-family: var(--font-titulo);
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--verde-claro);
    text-align: left;
    padding-bottom: .8rem;
    margin-bottom: .5rem;
}
.specs-tabla tr { border-bottom: 1px solid var(--borde); }
.specs-tabla td { padding: .7rem .5rem; font-size: .9rem; }
.specs-tabla td:first-child { color: var(--gris-claro); width: 45%; }
.specs-tabla td:last-child  { color: var(--blanco); font-weight: 500; }
.specs-tabla tr:hover td { background: rgba(92,184,92,0.04); }

/* ── Contacto ──────────────────────────────────────────── */
#contacto { padding: 6rem 2rem; background: var(--oscuro); }

.contacto-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    max-width: 1100px;
    margin: 0 auto;
    align-items: start;
}
.contacto-info h2 { margin-bottom: 1rem; }
.contacto-info > p { color: var(--texto); margin-bottom: 2rem; }
.contacto-datos { display: flex; flex-direction: column; gap: 1.1rem; }
.contacto-dato {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1rem;
    background: var(--gris-oscuro);
    border-radius: var(--radio);
    border: 1px solid var(--borde);
}
.contacto-dato .ico {
    font-size: 1.3rem;
    width: 40px; height: 40px;
    background: rgba(92,184,92,0.1);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.contacto-dato strong { display:block; color:var(--blanco); font-size:.9rem; margin-bottom:.2rem; }
.contacto-dato span   { color: var(--gris-claro); font-size: .87rem; }
.contacto-dato a      { color: var(--verde-claro); }

.contacto-form {
    background: var(--gris-oscuro);
    border: 1px solid var(--borde);
    border-radius: var(--radio);
    padding: 2.5rem;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: .5rem; margin-bottom: 1rem; }
.form-group label {
    font-family: var(--font-titulo);
    font-size: .85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--gris-claro);
}
.form-group input,
.form-group select,
.form-group textarea {
    background: var(--gris-medio);
    border: 1px solid var(--borde);
    border-radius: var(--radio);
    padding: .75rem 1rem;
    color: var(--blanco);
    font-family: var(--font-cuerpo);
    font-size: .95rem;
    transition: border-color var(--transicion);
    width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--verde);
    box-shadow: 0 0 0 3px rgba(92,184,92,0.1);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-group select option { background: var(--gris-oscuro); }
.form-aviso {
    text-align: center;
    padding: .8rem;
    border-radius: var(--radio);
    margin-bottom: 1rem;
    font-size: .9rem;
}
.form-aviso.exito { background: rgba(92,184,92,0.1); border:1px solid var(--verde); color: var(--verde-claro); }
.form-aviso.error { background: rgba(220,53,69,0.1); border:1px solid #dc3545; color: #ff6b6b; }

/* ── Footer ────────────────────────────────────────────── */
#footer {
    background: #050d05;
    border-top: 1px solid var(--borde);
    padding: 4rem 2rem 2rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    max-width: 1280px;
    margin: 0 auto 3rem;
}
.footer-col h4 {
    font-family: var(--font-titulo);
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--verde-claro);
    margin-bottom: 1.2rem;
}
.footer-logo { height: 44px; margin-bottom: 1rem; }
.footer-col p,
.footer-col li { font-size: .87rem; color: var(--gris-claro); line-height: 1.8; }
.footer-col a { color: var(--gris-claro); }
.footer-col a:hover { color: var(--verde); }
.footer-col li { margin-bottom: .4rem; }

.footer-redes {
    display: flex;
    gap: .8rem;
    margin-top: 1.2rem;
}
.footer-red {
    width: 36px; height: 36px;
    background: var(--gris-oscuro);
    border: 1px solid var(--borde);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: .85rem;
    color: var(--gris-claro);
    transition: all var(--transicion);
}
.footer-red:hover {
    background: var(--verde);
    color: var(--negro);
    border-color: var(--verde);
}
.footer-bottom {
    max-width: 1280px;
    margin: 0 auto;
    border-top: 1px solid var(--borde);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: .82rem;
    color: var(--gris-claro);
}
.footer-bottom a { color: var(--verde-claro); }

/* ── Utilidades ────────────────────────────────────────── */
.texto-verde { color: var(--verde); }
.texto-centro { text-align: center; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mt-2 { margin-top: 2rem; }

/* ── Animaciones de entrada ────────────────────────────── */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity .6s ease, transform .6s ease;
}
.fade-in.visible { opacity:1; transform:translateY(0); }

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 1024px) {
    .quienes-grid { grid-template-columns: 1fr; gap: 3rem; }
    .footer-grid  { grid-template-columns: 1fr 1fr; }
    .stats-row    { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 0; right: 0; bottom: 0;
        width: min(300px, 80vw);
        background: var(--negro);
        border-left: 1px solid var(--borde);
        flex-direction: column;
        justify-content: center;
        padding: 2rem;
        gap: 1.5rem;
    }
    .nav-menu.abierto { display: flex; }
    .burger { display: flex; }

    .hero-content { margin-left: 0; padding: 7rem 1.5rem 3rem; }
    .hero-stats { display: none; }
    .hero-scroll { display: none; }

    .categorias-grid  { grid-template-columns: repeat(2,1fr); }
    .productos-grid   { grid-template-columns: 1fr; }
    .proyectos-grid   { grid-template-columns: 1fr; }
    .ficha-grid       { grid-template-columns: 1fr; }
    .contacto-grid    { grid-template-columns: 1fr; }
    .footer-grid      { grid-template-columns: 1fr; }
    .footer-bottom    { flex-direction: column; gap: .8rem; text-align: center; }
    .form-row         { grid-template-columns: 1fr; }
    .stats-row        { grid-template-columns: repeat(2,1fr); }
    #navbar { padding: 1rem 1.2rem; }
}

@media (max-width: 480px) {
    .categorias-grid { grid-template-columns: 1fr; }
    .stats-row       { grid-template-columns: 1fr 1fr; }
}

/* ── Páginas internas — fondo blanco ───────────────────── */
body.pagina-interna {
    background: #fff;
    color: #1a1a1a;
}
body.pagina-interna .contenido-pagina {
    background: #fff;
}

/* Secciones sobre blanco */
body.pagina-interna h1,
body.pagina-interna h2,
body.pagina-interna h3,
body.pagina-interna h4 {
    color: #111;
}
body.pagina-interna p,
body.pagina-interna li {
    color: #444;
}
body.pagina-interna a {
    color: var(--verde-oscuro);
}
body.pagina-interna a:hover {
    color: var(--verde);
}

/* Excepción: el hero-interno mantiene el estilo oscuro (slider + overlay) */
body.pagina-interna #hero-interno h1,
body.pagina-interna #hero-interno h2,
body.pagina-interna #hero-interno h3,
body.pagina-interna #hero-interno h4 { color: var(--blanco); }
body.pagina-interna #hero-interno p { color: var(--texto); }
body.pagina-interna #hero-interno .hero-badge { color: var(--verde-claro); }
body.pagina-interna #hero-interno h1 em { color: var(--verde); font-style: normal; }

/* Cards sobre blanco */
body.pagina-interna .prod-card,
body.pagina-interna .cat-card,
body.pagina-interna .proy-card {
    background: #f8faf8;
    border-color: #dde8dd;
}
body.pagina-interna .prod-card:hover,
body.pagina-interna .cat-card:hover,
body.pagina-interna .proy-card:hover {
    border-color: var(--verde);
    box-shadow: 0 8px 32px rgba(60,120,60,0.12);
}
body.pagina-interna .prod-card-body h3,
body.pagina-interna .cat-card-body h3,
body.pagina-interna .proy-card-body h3 {
    color: #111;
}
body.pagina-interna .prod-card-body p,
body.pagina-interna .cat-card-body p,
body.pagina-interna .proy-card-body p {
    color: #555;
}
body.pagina-interna .prod-card-badge {
    background: #e8f5e8;
    color: var(--verde-oscuro);
}
body.pagina-interna .prod-card-codigo {
    color: var(--verde-oscuro);
}

/* Filtros sobre blanco */
body.pagina-interna .filtros-cats {
    background: #f0f5f0;
    border-bottom-color: #dde8dd;
}
body.pagina-interna .filtro-btn {
    color: #555;
    border-color: #ccc;
}
body.pagina-interna .filtro-btn:hover,
body.pagina-interna .filtro-btn.activo {
    background: var(--verde);
    color: #fff;
    border-color: var(--verde);
}

/* Ficha técnica sobre blanco */
body.pagina-interna .specs-tabla td:first-child { color: #666; }
body.pagina-interna .specs-tabla td:last-child  { color: #111; }
body.pagina-interna .specs-tabla tr { border-bottom-color: #e0e8e0; }
body.pagina-interna .specs-tabla tr:hover td { background: #f0f8f0; }

/* Contacto sobre blanco */
body.pagina-interna .contacto-form {
    background: #f8faf8;
    border-color: #dde8dd;
}
body.pagina-interna .form-group input,
body.pagina-interna .form-group select,
body.pagina-interna .form-group textarea {
    background: #fff;
    border-color: #ccd8cc;
    color: #111;
}
body.pagina-interna .form-group input:focus,
body.pagina-interna .form-group select,
body.pagina-interna .form-group textarea:focus {
    border-color: var(--verde);
}
body.pagina-interna .form-group label { color: #555; }
body.pagina-interna .contacto-dato {
    background: #f0f5f0;
    border-color: #dde8dd;
}
body.pagina-interna .contacto-dato strong { color: #111; }
body.pagina-interna .contacto-dato span   { color: #555; }

/* Quiénes Somos sobre blanco */
body.pagina-interna .quienes-mv-item {
    background: #f0f5f0;
    border-left-color: var(--verde);
}
body.pagina-interna .quienes-mv-item p { color: #555; }

/* Stats band sobre blanco */
body.pagina-interna .stats-row {
    background: #f0f5f0;
}
body.pagina-interna .stat-item p { color: #555; }

/* Breadcrumb */
body.pagina-interna .breadcrumb {
    font-size: .85rem;
    color: #888;
    padding: 1rem 2rem;
    max-width: 1280px;
    margin: 0 auto;
}
body.pagina-interna .breadcrumb a { color: var(--verde-oscuro); }
body.pagina-interna .breadcrumb span { color: #333; }

/* Sección títulos sobre blanco */
body.pagina-interna .seccion-titulo h2 { color: #111; }
body.pagina-interna .seccion-titulo p  { color: #666; }

/* Botones sobre blanco */
body.pagina-interna .btn-outline {
    background: transparent;
    color: #333;
    border-color: #aac4aa;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    text-shadow: none;
}
body.pagina-interna .btn-outline:hover {
    background: transparent;
    color: var(--verde-oscuro);
    border-color: var(--verde);
}

/* Footer sigue oscuro en páginas internas */
body.pagina-interna #footer {
    background: #050d05;
    color: var(--texto);
}
body.pagina-interna #footer h4,
body.pagina-interna #footer p,
body.pagina-interna #footer li,
body.pagina-interna #footer a { color: var(--gris-claro); }
body.pagina-interna #footer a:hover { color: var(--verde); }
body.pagina-interna #footer .footer-bottom { border-top-color: var(--borde); }

/* Proy tipo badge sobre blanco */
body.pagina-interna .proy-tipo { background: var(--verde); color: #fff; }

/* Hero slider (igual que index, ya definido arriba — se mantiene) */