/* =========================================
   VARIABLES & RESET
========================================= */
:root {
    --azul-cg: #000b74;
    --dorado-cg: #F2B356;
    --blanco: #FFFFFF;
    --gris-fondo: #F8F9FA;
    --gris-borde: #E5E7EB;
    --texto-oscuro: #1A1A1A;
    --texto-mutado: #4B5563;
    --radio: 8px;
    --sombra: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Montserrat', sans-serif; color: var(--texto-oscuro); background: var(--blanco); line-height: 1.6; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.center { text-align: center; }

/* =========================================
   NAVBAR
========================================= */
.navbar {
    position: fixed; top: 0; width: 100%;
    background: var(--blanco); box-shadow: var(--sombra);
    z-index: 1000; transition: all 0.3s ease;
}
.nav-container {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem 5%; max-width: 1400px; margin: 0 auto;
}
.logo img { height: 40px; }
.nav-links { display: none; align-items: center; gap: 1.8rem; }
.nav-links a { font-weight: 500; font-size: 0.95rem; transition: color 0.2s; }
.nav-links a:hover, .nav-links a.active-link { color: var(--dorado-cg); font-weight: 700; }

.btn-nav {
    background: var(--azul-cg); color: var(--blanco) !important;
    padding: 0.5rem 1.2rem; border-radius: var(--radio); font-weight: 600;
}
.btn-nav:hover { background: #000852 !important; }

/* Botón Selector de Idioma */
.lang-btn {
    background: transparent; border: 1px solid var(--azul-cg);
    color: var(--azul-cg); padding: 0.4rem 0.8rem; border-radius: var(--radio);
    font-weight: 700; font-size: 0.85rem; cursor: pointer; display: flex;
    align-items: center; gap: 6px; transition: all 0.2s;
}
.lang-btn:hover { background: var(--azul-cg); color: var(--blanco); }

.nav-actions-mobile { display: flex; align-items: center; gap: 1rem; }
.mobile-only { display: flex; }

/* Menú Hamburguesa */
.mobile-menu-btn {
    display: flex; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 5px;
}
.mobile-menu-btn span {
    width: 26px; height: 3px; background: var(--azul-cg); border-radius: 2px;
}

/* =========================================
   HERO SECTION & PAGE HEADER
========================================= */
.hero {
    background-color: var(--azul-cg); color: var(--blanco);
    padding: 8rem 5% 7rem; text-align: center; position: relative;
}
.hero-container { max-width: 800px; margin: 0 auto; }
.hero h1 { font-size: 2.3rem; font-weight: 800; margin-bottom: 1.2rem; line-height: 1.2; }
.hero p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 2rem; }

.page-header {
    background-color: var(--azul-cg); color: var(--blanco);
    padding: 7.5rem 5% 4rem; text-align: center;
}
.page-header h1 { font-size: 2.5rem; font-weight: 800; margin-bottom: 1rem; }
.page-header p { font-size: 1.1rem; opacity: 0.9; max-width: 700px; margin: 0 auto; }

.btn-cta {
    display: inline-flex; align-items: center; gap: 10px;
    background-color: var(--dorado-cg); color: var(--texto-oscuro);
    padding: 1rem 2rem; font-weight: 700; border-radius: var(--radio);
    font-size: 1.1rem; box-shadow: 0 4px 15px rgba(242, 179, 86, 0.4);
    transition: transform 0.2s;
}
.btn-cta:hover { transform: translateY(-3px); }

.wedge-divider {
    position: absolute; bottom: 0; left: 0; width: 100%; height: 40px;
    background: var(--gris-fondo); clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

/* =========================================
   CONFIANZA INSTITUCIONAL
========================================= */
.trust-bar { background: var(--gris-fondo); padding: 3.5rem 0; text-align: center; }
.trust-title { font-size: 0.85rem; font-weight: 600; text-transform: uppercase; color: var(--texto-mutado); letter-spacing: 1px; margin-bottom: 1.5rem; }
.trust-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.2rem; align-items: center; }
.trust-item {
    background: var(--blanco); padding: 0.8rem 1.4rem; border-radius: var(--radio);
    border: 1px solid var(--gris-borde); font-weight: 700; color: var(--azul-cg);
    font-size: 1rem; display: flex; align-items: center; gap: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.04);
}
.trust-item i { color: var(--dorado-cg); }

/* =========================================
   SERVICIOS
========================================= */
.services { padding: 5rem 0; }
.section-title { font-size: 2rem; color: var(--azul-cg); margin-bottom: 2.5rem; text-align: center; font-weight: 800; }
.services-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }

.service-card {
    background: var(--blanco); border: 1px solid var(--gris-borde);
    padding: 2.5rem 2rem; border-radius: var(--radio); transition: all 0.3s;
}
.service-card:hover { border-color: var(--dorado-cg); box-shadow: var(--sombra); transform: translateY(-3px); }
.service-card.featured { background: var(--azul-cg); color: var(--blanco); border: none; }
.service-card.featured h3 { color: var(--dorado-cg); }
.service-card.featured p { color: rgba(255,255,255,0.9); }
.service-icon { font-size: 2.5rem; color: var(--dorado-cg); margin-bottom: 1.2rem; }
.service-card h3, .service-card h4 { font-size: 1.3rem; margin-bottom: 0.8rem; color: var(--azul-cg); }
.service-card p { color: var(--texto-mutado); font-size: 0.95rem; }

/* =========================================
   PREVIEW DE PROYECTOS & GALERÍA COMPLETA
========================================= */
.projects-preview { padding: 5rem 0; background: var(--blanco); }
.preview-subtitle { text-align: center; color: var(--texto-mutado); margin-top: -1.5rem; margin-bottom: 2.5rem; }
.preview-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-bottom: 2.5rem; }
.preview-item img {
    width: 100%; height: 220px; object-fit: cover;
    border-radius: var(--radio); border: 1px solid var(--gris-borde);
    transition: transform 0.3s;
}
.preview-item img:hover { transform: scale(1.02); }
.preview-btn-container { margin-top: 1rem; }

.gallery-section { padding: 4rem 0 6rem; background: var(--gris-fondo); }
.gallery-grid {
    display: grid; grid-template-columns: 1fr; gap: 1.5rem; margin-bottom: 4rem;
}
.gallery-card {
    background: var(--blanco); border-radius: var(--radio); overflow: hidden;
    box-shadow: var(--sombra); border: 1px solid var(--gris-borde);
    transition: transform 0.3s;
}
.gallery-card:hover { transform: translateY(-4px); }
.gallery-card img { width: 100%; height: 260px; object-fit: cover; }

.gallery-cta {
    background: var(--azul-cg); color: var(--blanco); text-align: center;
    padding: 3rem 2rem; border-radius: var(--radio);
}
.gallery-cta h3 { font-size: 1.6rem; color: var(--dorado-cg); margin-bottom: 0.8rem; }
.gallery-cta p { max-width: 600px; margin: 0 auto 1.5rem; opacity: 0.9; }

/* =========================================
   AUDIENCIA & PROCESO
========================================= */
.audience { background: var(--azul-cg); color: var(--blanco); padding: 5rem 0; }
.audience-grid { display: grid; grid-template-columns: 1fr; gap: 2.5rem; }
.audience-box h3 { color: var(--dorado-cg); font-size: 1.5rem; margin-bottom: 1rem; }
.audience-box p { opacity: 0.9; }

.process { padding: 5rem 0; background: var(--gris-fondo); }
.process-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
.process-step { background: var(--blanco); padding: 2rem; border-radius: var(--radio); border: 1px solid var(--gris-borde); position: relative; }
.step-num { font-size: 2.5rem; font-weight: 800; color: var(--dorado-cg); opacity: 0.4; display: block; margin-bottom: 0.5rem; }
.process-step h4 { font-size: 1.2rem; color: var(--azul-cg); margin-bottom: 0.5rem; }
.process-step p { font-size: 0.9rem; color: var(--texto-mutado); }

/* =========================================
   FOOTER, REDES SOCIALES & WHATSAPP
========================================= */
.footer { background: #000642; color: var(--blanco); padding: 4rem 0 2rem; font-size: 0.9rem; }
.footer-flex { display: grid; grid-template-columns: 1fr; gap: 2rem; margin-bottom: 3rem; }
.footer-logo { height: 45px; filter: brightness(0) invert(1); margin-bottom: 1rem; }
.footer p { margin-bottom: 0.5rem; }

.social-links { display: flex; gap: 1rem; margin-top: 1.2rem; }
.social-links a {
    display: inline-flex; align-items: center; justify-content: center;
    width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,0.1);
    color: var(--blanco); font-size: 1.2rem; transition: all 0.3s;
}
.social-links a:hover { background: var(--dorado-cg); color: var(--azul-cg); transform: translateY(-3px); }

.footer-copy { text-align: center; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 1.5rem; opacity: 0.7; }

.whatsapp-float {
    position: fixed; bottom: 25px; right: 25px; width: 60px; height: 60px;
    background: #25D366; color: #FFF; border-radius: 50%; display: flex;
    align-items: center; justify-content: center; font-size: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3); z-index: 1000; transition: transform 0.2s;
}
.whatsapp-float:hover { transform: scale(1.1); }

/* =========================================
   MEDIA QUERIES (TABLET & DESKTOP)
========================================= */
@media (min-width: 768px) {
    .hero h1 { font-size: 3.2rem; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .preview-grid { grid-template-columns: repeat(4, 1fr); }
    .gallery-grid { grid-template-columns: repeat(2, 1fr); }
    .audience-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-flex { grid-template-columns: 2fr 1fr; }
}

@media (min-width: 992px) {
    .mobile-menu-btn, .mobile-only { display: none !important; }
    .nav-links { display: flex !important; }
    .services-grid { grid-template-columns: repeat(3, 1fr); }
    .service-card.featured { grid-column: span 3; }
    .gallery-grid { grid-template-columns: repeat(3, 1fr); }
    .process-grid { grid-template-columns: repeat(4, 1fr); }
}