:root {
    --color-bg: #121212;
    --color-bg-alt: #1a1a1a;
    --color-bg-soft: #1f1f1f;
    --color-text: #f3f3f3;
    --color-text-muted: #b3b3b3;
    --color-accent: #0bb4ff;
    --color-accent-soft: rgba(11, 180, 255, 0.2);
    --color-highlight: #ffffff;
    --nav-height: 88px;
    --container-width: 1140px;
    --shadow-soft: 0 30px 80px rgba(0, 0, 0, 0.55);
    --shadow-hard: 0 40px 120px rgba(0, 0, 0, 0.65);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --transition: 0.25s ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Montserrat', 'Segoe UI', Tahoma, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    scroll-padding-top: calc(var(--nav-height) + 2rem);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: min(var(--container-width), calc(100% - 3rem));
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 2.5rem;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-size: 0.85rem;
    border: 1px solid transparent;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(11, 180, 255, 0.25);
}

.btn--light {
    background: var(--color-highlight);
    color: #121212;
}

.btn--ghost {
    border-color: rgba(255, 255, 255, 0.35);
    background: transparent;
    color: var(--color-highlight);
}

.btn--outline {
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.7rem 1.8rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-highlight);
}

.btn--whatsapp {
    background: var(--color-accent);
    color: #050505;
    font-weight: 700;
}

.hero {
    position: relative;
    padding-top: clamp(3.5rem, 8vw, 5rem);
    padding-bottom: 5rem;
    overflow: hidden;
}

.hero__background {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 20%, #2e2e2e 0%, #1a1a1a 50%, #0f0f0f 100%);
    z-index: 1;
}

.site-header {
    position: relative;
    z-index: 1000;
    background: var(--color-bg-alt);
}

.nav {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(18, 18, 18, 0.92);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 0;
}

.nav__inner {
    width: min(var(--container-width), calc(100% - 3rem));
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1.5rem;
    min-height: var(--nav-height);
}

.nav__spacer {
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.nav__cta {
    display: inline-flex;
    justify-self: end;
}

.logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    justify-self: center;
}

.logo__mark {
    width: clamp(52px, 7vw, 70px);
}

.logo__type {
    width: clamp(200px, 24vw, 280px);
}

.hero__content {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
    align-items: center;
    gap: clamp(2rem, 4vw, 4rem);
    margin-top: clamp(2.5rem, 6vw, 3.5rem);
}

.hero__eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.28em;
    font-weight: 600;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 1rem;
}

.hero h1 {
    margin: 0 0 1.5rem;
    font-size: clamp(2.6rem, 5vw, 4rem);
    line-height: 1.05;
    text-transform: uppercase;
    letter-spacing: -0.01em;
}

.hero__lead {
    margin: 0 0 2rem;
    font-size: 1rem;
    color: var(--color-text-muted);
    max-width: 32rem;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.hero__visual {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    padding: 1rem;
}

.hero__visual img {
    width: min(100%, 380px);
    filter: drop-shadow(0 25px 40px rgba(0, 0, 0, 0.65));
}

.hero__ground {
    margin-top: 2.5rem;
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    gap: 2rem;
}

.hero__ground img:first-child {
    width: min(540px, 70%);
}

.hero__quadruped {
    width: clamp(180px, 30vw, 300px);
    filter: drop-shadow(0 12px 25px rgba(0, 0, 0, 0.65));
}

.section {
    position: relative;
    padding: clamp(4rem, 9vw, 8rem) 0;
    overflow: hidden;
}

.section__background {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, #252525 0%, #191919 55%, #101010 100%);
    z-index: 1;
}

.section__header {
    max-width: 720px;
    margin-bottom: clamp(3rem, 6vw, 4.5rem);
    position: relative;
    z-index: 2;
}

.section__header h2 {
    margin: 0 0 1.5rem;
    text-transform: uppercase;
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.01em;
}

.section__header p {
    margin: 0;
    color: var(--color-text-muted);
}

.section--sectors .section__background {
    background: linear-gradient(160deg, #292929 0%, #161616 60%, #0c0c0c 100%);
}

.sector-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(1.5rem, 4vw, 2.5rem);
    position: relative;
    z-index: 2;
}

.sector-card {
    background: rgba(26, 26, 26, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(12px);
    transition: transform var(--transition), border var(--transition);
}

.sector-card:hover {
    transform: translateY(-8px);
    border-color: rgba(11, 180, 255, 0.4);
}

.sector-card__icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1.4rem;
}

.sector-card h3 {
    margin: 0 0 0.9rem;
    text-transform: uppercase;
    font-size: 1.05rem;
    letter-spacing: 0.08em;
}

.sector-card p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.section__visual {
    position: relative;
    margin-top: clamp(3rem, 6vw, 5rem);
    display: flex;
    justify-content: flex-end;
    z-index: 2;
}

.section__visual img {
    width: min(680px, 60%);
    filter: drop-shadow(0 25px 35px rgba(0, 0, 0, 0.58));
}

.section--contact {
    padding-top: clamp(5rem, 10vw, 9rem);
    padding-bottom: clamp(5rem, 9vw, 9rem);
}

.section--contact .section__background {
    background: linear-gradient(200deg, #2c2c2c 0%, #1a1a1a 55%, #0b0b0b 100%);
}

.section--contact__wrapper {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(2.5rem, 5vw, 4rem);
    align-items: center;
}

.contact__content h2 {
    margin: 0 0 1.5rem;
    text-transform: uppercase;
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.01em;
}

.contact__content p {
    margin: 0 0 1.5rem;
    color: var(--color-text-muted);
}

.contact__bullets {
    list-style: none;
    padding: 0;
    margin: 0 0 2.5rem;
    display: grid;
    gap: 0.85rem;
    color: var(--color-highlight);
}

.contact__bullets li::before {
    content: '';
    display: inline-block;
    width: 9px;
    height: 9px;
    margin-right: 0.75rem;
    border-radius: 50%;
    background: var(--color-accent);
    box-shadow: 0 0 12px var(--color-accent);
}

.contact__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.contact__visual {
    position: relative;
    display: grid;
    justify-items: center;
    gap: 2rem;
}

.contact__drone {
    width: clamp(240px, 45vw, 360px);
    filter: drop-shadow(0 25px 35px rgba(0, 0, 0, 0.62));
}

.contact__quadruped {
    width: clamp(220px, 35vw, 320px);
    filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.6));
}

.footer {
    position: relative;
    padding: 4rem 0 3rem;
    overflow: hidden;
    background-color: var(--color-bg-alt);
}

.footer__background {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, #242424 0%, #181818 55%, #0d0d0d 100%);
    opacity: 0.85;
    z-index: 1;
}

.footer__content {
    display: grid;
    grid-template-columns: minmax(0, 0.7fr) minmax(0, 0.3fr);
    align-items: stretch;
    gap: clamp(2rem, 6vw, 4rem);
    position: relative;
    z-index: 2;
}

.footer__badge {
    background: rgba(24, 24, 24, 0.85);
    padding: 2rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-soft);
    text-align: left;
    width: 100%;
}

.footer__status {
    margin: 0 0 1rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.35em;
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer__socials {
    margin: 0 0 1.5rem;
}

.socials {
    display: flex;
    gap: 1.125rem;
    align-items: center;
}

.socials a {
    color: rgba(255, 255, 255, 0.58);
    opacity: 0.9;
    display: inline-flex;
    transition: color 0.2s ease, transform 0.15s ease, filter 0.2s ease;
}

.socials a:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 6px;
}

.socials a:hover,
.socials a:active {
    color: var(--color-accent);
    transform: translateY(-1px);
    filter: drop-shadow(0 0 8px rgba(11, 180, 255, 0.45));
}

.socials svg {
    width: 28px;
    height: 28px;
    stroke: currentColor;
    fill: none;
}

.socials svg.fill {
    fill: currentColor;
    stroke: none;
}

.footer__claim {
    margin: 0 0 1.5rem;
    color: var(--color-text-muted);
    font-size: 0.92rem;
}

.footer__legal {
    margin: 0;
    font-size: 0.78rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
}

.footer__visuals {
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    gap: 2rem;
}

.footer__visuals img {
    width: clamp(160px, 25vw, 240px);
    filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.55));
}

@media (max-width: 992px) {
    :root {
        --nav-height: 110px;
    }

    .nav__inner {
        width: calc(100% - 2.5rem);
    }

    .hero__content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__lead {
        margin: 0 auto 2rem;
    }

    .hero__actions {
        justify-content: center;
    }

    .hero__ground {
        justify-content: center;
    }

    .section--contact__wrapper {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .contact__bullets {
        justify-items: center;
    }

    .contact__bullets li::before {
        display: none;
    }

    .contact__actions {
        justify-content: center;
    }
}

@media (max-width: 900px) {
    .sector-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    :root {
        --nav-height: 160px;
    }

    body {
        line-height: 1.7;
    }

    .container {
        width: calc(100% - 2rem);
    }

    .nav {
        padding: 1rem 0;
    }

    .nav__inner {
        width: calc(100% - 2rem);
        grid-template-columns: 1fr;
        justify-items: center;
        row-gap: 1.5rem;
    }

    .nav__spacer {
        display: none;
    }

    .nav__cta {
        width: auto;
        justify-content: center;
        justify-self: center;
    }

    .nav__cta .btn {
        width: auto;
    }

    .hero__actions,
    .contact__actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .hero__ground {
        flex-direction: column;
        align-items: center;
    }

    .sector-grid {
        grid-template-columns: 1fr;
    }

    .footer__content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer__badge {
        margin: 0 auto;
    }

    .footer__visuals {
        justify-content: center;
    }
}