:root {
    --bg: #fafafa;
    --text: #1a1a1a;
    --text-light: #fff;
    --accent: #00aeff;
    --border: #e5e5e5;
    --card-bg: #ffffff11;
}

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

/* === Fondo de video global === */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    position: relative;
    overflow-x: hidden;
}

/* Video global de fondo */
.hero-video {
    position: fixed;
    /* <- Fijo para que cubra toda la página */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
    /* detrás de todo */
}

/* Overlay oscuro global */
body::after {
    content: "";
    position: fixed;
    /* <- también fijo */
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: -1;
    /* encima del video, debajo del contenido */
}


nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;

    backdrop-filter: blur(12px);

    transition: border-color 0.3s;
}

nav.scrolled {
    border-bottom-color: var(--border);
}

.logo-nav {
    font-size: 3.1rem;
    font-weight: 900;
    letter-spacing: -0.02em;
    color: var(--bg);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 1.3rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: #fff;
    font-weight: 700;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a::after {
    content: "";
    position: absolute;
    bottom: -4px;
    /* distance from text */
    left: 0;
    width: 0%;
    height: 2px;
    /* thickness of accent line */
    background-color: var(--text-light);
    /* 🎨 your accent color */
    transition: width 0.3s ease;
}


section {
    padding: 0 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    /* centra horizontalmente */
    justify-content: center;
    /* centra verticalmente si la sección tiene altura */
    text-align: center;
    /* centra texto */
    min-height: 80vh;
    /* ajusta según el diseño */
    gap: 1.5rem;
    /* espacio entre h1, p y botón */
    padding: 2rem;
    /* opcional, para que no toque los bordes */
}

.hero h1 {
    font-size: clamp(2rem, 6vw, 4rem);
    line-height: 1.2;
    font-weight: 700;
    color: var(--bg);
    margin-bottom: 2rem;
}

.hero h1 .highlight {
    color: var(--accent);
}



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

.hero h1 {
    transform: translateY(30px);
}

.hero-subtitle {
    font-size: clamp(1.2rem, 2.5vw, 1.5rem);
    color: var(--text-light);
    font-weight: 400;
    max-width: 800px;
    margin-bottom: 3rem;
}


.capabilities {
    padding: 8rem 5% 4rem;
}


/* Nueva sección de financiamiento */
#financing {
    padding: 6rem 5%;
    background: rgba(0, 0, 0, 0.85);
    color: #fff;
    text-align: center;
    border-radius: 12px;
    margin-bottom: 6rem;
}

#financing h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
}

#financing p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

#financing input,
#financing select {
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border-radius: 8px;
    border: none;
    margin-right: 0.5rem;
}

#financing button {
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}

#financing .simulator-result {
    margin-top: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
}

.capability {
    padding: 2rem 0;
}

.capability h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-light);
    letter-spacing: -0.02em;
}

.capability p {
    color: var(--text-light);
    line-height: 1.7;
}

.work {
    padding: 4rem 5% 8rem;
}

.work-grid {
    display: grid;
    gap: 2rem;
    margin-top: 3rem;
}

.project {
    position: relative;
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    display: block;
    text-decoration: none;
    color: inherit;
}

.project:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.project-content {
    padding: 3rem;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.project h3 {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.project-arrow {
    width: 32px;
    height: 32px;
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.project:hover .project-arrow {
    background: var(--text);
    border-color: var(--text);
    transform: translateX(4px) translateY(-4px);
}

.project:hover .project-arrow svg {
    stroke: var(--bg);
}

.project p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.project-tags {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.tag {
    font-size: 0.85rem;
    padding: 0.375rem 0.875rem;
    background: var(--card-bg);
    border-radius: 6px;

}

.contact {
    padding: 8rem 5%;
    border-radius: 25px;
    background: #1a1a1a;
    ;
    color: var(--bg);
}



.contact h2 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}

.contact-intro {
    font-size: 1.25rem;
    color: rgba(250, 250, 250, 0.7);
    margin-bottom: 4rem;
    max-width: 600px;
}

.form-row {
    display: grid;

    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    color: rgba(250, 250, 250, 0.7);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(250, 250, 250, 0.08);
    border: 1px solid rgba(250, 250, 250, 0.15);
    color: var(--bg);
    font-family: inherit;
    font-size: 1rem;
    border-radius: 8px;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    background: rgba(250, 250, 250, 0.12);
    border-color: rgba(250, 250, 250, 0.3);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(250, 250, 250, 0.4);
}

.submit-btn {
    padding: 1rem 2.5rem;
    background: var(--bg);
    color: var(--text);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.submit-btn:hover {
    transform: translateY(-2px);

}

footer {
    padding: 3rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-light);
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--text);
}

@media (max-width: 768px) {
    nav {
        padding: 1rem 5%;
    }

    .nav-links {
        gap: 1.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    footer {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .capabilities-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

}

.hero-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;

    max-width: 400px;
    padding: 0.75rem 1.5rem;

    background: var(--accent);
    color: #fff;
    font-size: 1.5rem;
    font-weight: 600;
    text-decoration: none;

    border-radius: 999px;
    position: relative;
    text-align: center;
    overflow: hidden;
    cursor: pointer;

    /* Animación bounce */
    animation: bounceInfinite 2s ease-in-out infinite;
    transition: background 0.3s ease;
}

.hero-cta svg {
    transition: transform 0.3s ease;
}

/* Hover solo para mover la flecha */
.hero-cta:hover svg {
    transform: translateX(5px);
}

.hero-cta:hover {
    background: #005f9e;
    ;
}

/* Bounce keyframes */
@keyframes bounceInfinite {

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

    25% {
        transform: translateY(-6px);
    }

    50% {
        transform: translateY(0);
    }

    75% {
        transform: translateY(-3px);
    }
}


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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    min-height: 100vh;
    padding: 60px 20px;
}

.work {
    margin: 0 auto;
}

.section-label {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    text-align: center;
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.project {
    text-decoration: none;
    color: inherit;
    display: block;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
}

.project:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}

.project-thumbnail {
    width: 100%;
    height: 220px;
    background: #f5f7fa;
    position: relative;
    overflow: hidden;
}

.project-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.project:hover .project-thumbnail img {
    transform: scale(1.05);
}

.project-thumbnail::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project:hover .project-thumbnail::after {
    opacity: 1;
}

.project-content {
    padding: 24px;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.project h3 {
    font-size: 22px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0;
    line-height: 1.3;
}

.project-arrow {
    width: 32px;
    height: 32px;
    background: #f0f0f0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
    margin-left: 12px;
}

.project:hover .project-arrow {
    background: #1a1a1a;
    transform: translateX(3px) translateY(-3px);
}

.project:hover .project-arrow svg path {
    stroke: white;
}

.project p {
    font-size: 15px;
    line-height: 1.6;
    color: #666;
    margin-bottom: 16px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    padding: 6px 14px;
    background: #f0f0f0;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: #666;
    transition: all 0.3s ease;
}

.project:hover .tag {
    background: rgba(102, 126, 234, 0.1);
    color: #000000;
}

@media (max-width: 768px) {
    .work-grid {
        grid-template-columns: 1fr;
    }

    .project-thumbnail {
        height: 200px;
    }
}



.error-message {
    color: #ff4d4d;
    font-size: 1rem;
    margin-top: 4px;
    min-height: 18px;
}

/* borde rojo para el campo faltante */
.error-input {
    border: 1.5px solid #ff4d4d !important;
    box-shadow: 0 0 0 3px rgba(255, 77, 77, 0.06);
    outline: none;
}

.submit-btn {
    position: relative;
    background-color: var(--accent);
    color: #fff;
    padding: 0.8rem 1.6rem;
    border: none;
    font-size: 1.2rem;
    border-radius: 8px;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.3s ease;
    display: inline-flex;
    font-weight: 600;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.submit-btn:disabled {
    background-color: #999;
    cursor: not-allowed;
}

.spinner {
    display: none;
    width: 18px;
    height: 18px;
    border: 3px solid #fff;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}



/* Dropdown nav */
.nav-links li {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(0, 0, 0, 0.85);
    list-style: none;
    padding: 0.5rem 0;
    border-radius: 8px;
    min-width: 160px;
    z-index: 1000;
}

.dropdown-menu li a {
    display: block;
    padding: 0.5rem 1rem;
    color: #fff;
    text-decoration: none;
    transition: background 0.2s;
}

.dropdown-menu li a:hover {
    background: var(--accent);
}

.dropdown:hover .dropdown-menu {
    display: block;
}





.capabilities-grid {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.card {
    background: #00000086;
    padding: 20px;
    border-radius: 12px;
    flex: 1 1 250px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.icon {
    width: 40px;
    height: 40px;
    color: #0f4c75;
    margin-bottom: 15px;
}






.hero-slider {
    position: relative;
    overflow: hidden;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 1.5rem;
    opacity: 0;
    transform: scale(1.02);
    transition: opacity 1s ease, transform 1s ease;
}

.hero.active {
    opacity: 1;
    transform: scale(1);
    z-index: 2;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.highlight {
    color: var(--accent);
}

.hero-subtitle {
    max-width: 600px;
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: #cbd5e1;
}



.slider-dots {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.6rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #64748b;
    transition: background 0.3s ease;
    cursor: pointer;
}

.dot.active {
    background: var(--accent);
}



.capabilities {
    text-align: center;
    padding: 4rem 1.5rem;

    color: #f8fafc;
}



/* === Tabs === */
.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.tab-btn {
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--text-light);
    font-weight: 600;
    font-family: inherit;
    font-size: 1rem;
    border-radius: 999px;
    padding: 0.6rem 1.4rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--accent);
    color: var(--text-light);
}

/* === Tab contents === */
.tab-content {
    display: none;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.tab-content.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* === Grid === */
.capabilities-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    max-width: 1100px;
    margin: 0 auto;
}

.capability.card {
    padding: 2rem;
    border-radius: 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.capability.card:hover {
    transform: translateY(-6px);

}

.capability .icon {
    color: var(--accent);
    width: 32px;
    height: 32px;
    margin-bottom: 1rem;
}

h3 {
    margin: 0.5rem 0;
}

p {
    color: #cbd5e1;
    line-height: 1.5;
}

/* Hamburger menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Responsive <= 768px */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
        margin-right: 2rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        right: 0;
        background: rgba(0,0,0,0.85);
        flex-direction: column;
        width: 200px;
        padding: 1rem 0;
        border-radius: 0 0 12px 12px;
        gap: 0;
        z-index: 999;
        transition: all 0.3s ease;
    }

    .nav-links li {
        text-align: center;
        margin: 0.5rem 0;
    }

    .nav-links.show {
        display: flex;
    }
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}