/* === RESET Y BASE === */
 * {
     margin: 0;
     padding: 0;
     box-sizing: border-box;
 }

 html {
     scroll-behavior: smooth;
 }

 body {
     font-family: 'DM Sans', sans-serif;
     background: #ffffff;
     color: #1a1a2e;
     overflow-x: hidden;
 }

 /* === ANIMACIONES DE ENTRADA === */
 @keyframes fadeUp {
     from {
         opacity: 0;
         transform: translateY(40px);
     }

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

 @keyframes fadeIn {
     from {
         opacity: 0;
     }

     to {
         opacity: 1;
     }
 }

 @keyframes float {

     0%,
     100% {
         transform: translateY(0px);
     }

     50% {
         transform: translateY(-8px);
     }
 }

 
     @keyframes breathe {

         0%,
         100% {
             opacity: .3
         }

         50% {
             opacity: 1
         }
     }
 

 .animate-fade-up {
     animation: fadeUp 0.8s ease-out forwards;
 }

 .animate-fade-in {
     animation: fadeIn 0.6s ease-out forwards;
 }

 .animate-float {
     animation: float 4s ease-in-out infinite;
 }

 .delay-100 {
     animation-delay: 0.1s;
 }

 .delay-200 {
     animation-delay: 0.2s;
 }

 .delay-300 {
     animation-delay: 0.3s;
 }

 .delay-400 {
     animation-delay: 0.4s;
 }

 .delay-500 {
     animation-delay: 0.5s;
 }

 /* Observador de scroll — los elementos empiezan ocultos */
 .reveal {
     opacity: 0;
     transform: translateY(30px);
     transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
 }

 .reveal.visible {
     opacity: 1;
     transform: translateY(0);
 }

 /* === HERO BACKGROUND === */
 .logo_img {
     display: flex;
     width: 220px;
     height: 70px;
 }

 .hero-bg {
     background: linear-gradient(165deg, #060f26 0%, #0a1d47 35%, #153f99 70%, #1d5bd6 100%);
     position: relative;
     /* border: 1px solid red; */
     top: -5rem;
 }

 .hero-bg::before {
     content: '';
     position: absolute;
     inset: 0;
     background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
     opacity: 0.5;
     pointer-events: none;
 }

 /* Rejilla sutil sobre el hero */
 .hero-grid {
     position: absolute;
     inset: 0;
     background-image:
         linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
         linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
     background-size: 60px 60px;
     pointer-events: none;
 }

 /* === BOTÓN CTA PRINCIPAL === */
 .cta-btn {
     background: linear-gradient(135deg, #1d5bd6, #5990ff);
     transition: all 0.3s ease;
     position: relative;
     overflow: hidden;
 }

 .cta-btn::after {
     content: '';
     position: absolute;
     inset: 0;
     background: linear-gradient(135deg, #5990ff, #1d5bd6);
     opacity: 0;
     transition: opacity 0.3s ease;
 }

 .cta-btn:hover::after {
     opacity: 1;
 }

 .cta-btn:hover {
     transform: translateY(-2px);
     box-shadow: 0 12px 35px rgba(29, 91, 214, 0.4);
 }

 .cta-btn span {
     position: relative;
     z-index: 1;
 }

 /* === TARJETAS === */
 .service-card {
     background: #ffffff;
     border: 1px solid #e8ecf4;
     transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
 }

 .service-card:hover {
     transform: translateY(-6px);
     box-shadow: 0 20px 50px rgba(10, 29, 71, 0.1);
     border-color: #bcd3ff;
 }

 .tech-card {
     background: linear-gradient(135deg, #f8faff 0%, #ffffff 100%);
     border: 1px solid #e8ecf4;
     transition: all 0.35s ease;
 }

 .tech-card:hover {
     border-color: #8eb8ff;
     box-shadow: 0 8px 30px rgba(29, 91, 214, 0.08);
 }

 /* === TIMELINE (proceso) === */
 .timeline-line {
     position: absolute;
     left: 24px;
     top: 0;
     bottom: 0;
     width: 2px;
     background: linear-gradient(to bottom, #1d5bd6, #bcd3ff, transparent);
 }

 /* === FAQ ACORDEÓN === */
 .faq-item {
     border-bottom: 1px solid #e8ecf4;
 }

 .faq-answer {
     max-height: 0;
     overflow: hidden;
     transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), padding 0.3s ease;
 }

 .faq-item.open .faq-answer {
     max-height: 200px;
     padding-bottom: 1.25rem;
 }

 .faq-item.open .faq-icon {
     transform: rotate(45deg);
 }

 .faq-icon {
     transition: transform 0.3s ease;
 }

 /* === FORMULARIO INPUTS === */
 .form-input {
     background: #f8faff;
     border: 1.5px solid #e0e7f1;
     transition: all 0.3s ease;
 }

 .form-input:focus {
     outline: none;
     border-color: #1d5bd6;
     box-shadow: 0 0 0 4px rgba(29, 91, 214, 0.1);
     background: #ffffff;
 }

 /* === STAT COUNTER (hero) === */
 .stat-divider {
     width: 1px;
     height: 40px;
     background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.2), transparent);
 }

 /* === DECORADORES === */
 .accent-dot {
     width: 6px;
     height: 6px;
     background: #1d5bd6;
     border-radius: 50%;
     display: inline-block;
 }

 /* === PORTAFOLIO === */
 .portfolio-card {
     position: relative;
     border-radius: 1rem;
     overflow: hidden;
     background: #ffffff;
     border: 1px solid #e8ecf4;
     transition: all 0.45s cubic-bezier(0.16, 1, 0.3, 1);
 }

 .portfolio-card:hover {
     transform: translateY(-8px);
     box-shadow: 0 25px 60px rgba(10, 29, 71, 0.12);
     border-color: #bcd3ff;
 }

 .portfolio-thumb {
     position: relative;
     overflow: hidden;
     aspect-ratio: 16 / 10;
     background: linear-gradient(135deg, #eef4ff 0%, #d9e5ff 100%);
 }

 .portfolio-thumb img {
     width: 100%;
     height: 100%;
     object-fit: cover;
     transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
 }

 .portfolio-card:hover .portfolio-thumb img {
     transform: scale(1.05);
 }

 .portfolio-overlay {
     position: absolute;
     inset: 0;
     background: linear-gradient(to top, rgba(6, 15, 38, 0.85) 0%, transparent 60%);
     opacity: 0;
     transition: opacity 0.35s ease;
     display: flex;
     align-items: flex-end;
     padding: 1.5rem;
 }

 .portfolio-card:hover .portfolio-overlay {
     opacity: 1;
 }

 .portfolio-tag {
     display: inline-flex;
     align-items: center;
     gap: 0.25rem;
     padding: 0.25rem 0.65rem;
     border-radius: 9999px;
     font-size: 0.7rem;
     font-weight: 600;
     letter-spacing: 0.03em;
 }

 .filter-btn {
     padding: 0.5rem 1.25rem;
     border-radius: 9999px;
     font-size: 0.8rem;
     font-weight: 600;
     border: 1.5px solid #e0e7f1;
     background: transparent;
     color: #64748b;
     cursor: pointer;
     transition: all 0.25s ease;
 }

 .filter-btn:hover {
     border-color: #bcd3ff;
     color: #1d5bd6;
 }

 .filter-btn.active {
     background: #1d5bd6;
     border-color: #1d5bd6;
     color: #ffffff;
 }

 .portfolio-card.hidden-card {
     display: none;
 }



 /* === HERO SLIDER === */
 .hero-slider {
     position: relative;
     width: 100%;
     border-radius: 1rem;
     overflow: hidden;
     box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
     border: 1px solid rgba(255, 255, 255, 0.1);
 }

 .hero-slider-track {
     display: flex;
     transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
 }

 .hero-slide {
     min-width: 100%;
     aspect-ratio: 4 / 3;
     position: relative;
     overflow: hidden;
 }

 .hero-slide svg,
 .hero-slide img {
     width: 100%;
     height: 100%;
     object-fit: cover;
 }

 .slide-caption {
     position: absolute;
     bottom: 0;
     left: 0;
     right: 0;
     padding: 1.25rem 1.5rem;
     background: linear-gradient(to top, rgba(6, 15, 38, 0.9) 0%, transparent 100%);
 }

 .slider-dots {
     display: flex;
     justify-content: center;
     gap: 0.5rem;
     margin-top: 1rem;
 }

 .slider-dot {
     width: 8px;
     height: 8px;
     border-radius: 50%;
     background: rgba(255, 255, 255, 0.25);
     border: none;
     cursor: pointer;
     transition: all 0.3s ease;
     padding: 0;
 }

 .slider-dot.active {
     background: #5990ff;
     width: 24px;
     border-radius: 4px;
 }

 .slider-nav {
     position: absolute;
     top: 50%;
     transform: translateY(-50%);
     width: 36px;
     height: 36px;
     border-radius: 50%;
     background: rgba(255, 255, 255, 0.1);
     backdrop-filter: blur(8px);
     border: 1px solid rgba(255, 255, 255, 0.15);
     color: #ffffff;
     display: flex;
     align-items: center;
     justify-content: center;
     cursor: pointer;
     transition: all 0.25s ease;
     z-index: 5;
 }

 .slider-nav:hover {
     background: rgba(255, 255, 255, 0.2);
 }

 .slider-nav.prev {
     left: 12px;
 }

 .slider-nav.next {
     right: 12px;
 }

 /* === BLOG SECTION === */
 .blog-card {
     background: #ffffff;
     border: 1px solid #e8ecf4;
     border-radius: 1rem;
     overflow: hidden;
     transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
 }

 .blog-card:hover {
     transform: translateY(-6px);
     box-shadow: 0 20px 50px rgba(10, 29, 71, 0.1);
     border-color: #bcd3ff;
 }

 .blog-thumb {
     aspect-ratio: 16 / 9;
     overflow: hidden;
     background: linear-gradient(135deg, #eef4ff, #d9e5ff);
 }

 .blog-thumb img,
 .blog-thumb svg {
     width: 100%;
     height: 100%;
     object-fit: cover;
     transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
 }

 .blog-card:hover .blog-thumb img,
 .blog-card:hover .blog-thumb svg {
     transform: scale(1.05);
 }

 .blog-category-tag {
     display: inline-flex;
     padding: 0.2rem 0.6rem;
     border-radius: 9999px;
     font-size: 0.7rem;
     font-weight: 600;
     letter-spacing: 0.02em;
 }

 /* === SECCIÓN OSCURA (autoridad) === */
 .dark-section {
     background: linear-gradient(170deg, #0a1d47 0%, #060f26 100%);
 }