.whatsapp-float {
        position: fixed;
        bottom: 24px;
        right: 24px;
        z-index: 999;
        background-color: #25D366;
        border-radius: 50%;
        width: 60px;
        height: 60px;
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .whatsapp-float:hover {
        transform: scale(1.08);
        box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
    }

    .whatsapp-float img {
        width: 34px;
        height: 34px;
        filter: brightness(0) invert(1);
        /* deixa o ícone branco */
    }

    /* ---- Design Tokens (Ice White + Navy Flat) ---- */
    :root {
        --clr-navy: #0b1f3a;
        /* azul marinho principal */
        --clr-navy-600: #12315c;
        --clr-bg: #f4f7fa;
        /* branco gelo */
        --clr-surface: #ffffff;
        /* cartões/sections */
        --clr-text: #0b1f3a;
        /* texto principal navy */
        --clr-text-dim: #445b7a;
        /* texto secundário */
        --clr-accent: #2980b9;
        /* azul médio */
        --radius-xl: 1rem;
        --shadow-md: 0 4px 12px rgba(0, 0, 0, .08);
        --container: min(1120px, 92vw);
        --spacing-1: .5rem;
        --spacing-2: .75rem;
        --spacing-3: 1rem;
        --spacing-4: 1.5rem;
        --spacing-5: 2rem;
        --spacing-6: 3rem;
        --spacing-7: 4rem;
        --header-h: 74px;
    }

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

    html {
        scroll-behavior: smooth
    }

    body {
        margin: 0;
        font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica Neue, Arial, Noto Sans;
        color: var(--clr-text);
        background: var(--clr-bg);
    }

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

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

    .container {
        width: var(--container);
        margin-inline: auto
    }

    /* Header */
    header {
        position: sticky;
        top: 0;
        z-index: 1000;
        height: var(--header-h);
        background: rgba(255, 255, 255, .85);
        backdrop-filter: saturate(120%) blur(8px);
        border-bottom: 1px solid rgba(11, 31, 58, .15)
    }

    .nav {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100%
    }

    .brand {
        display: flex;
        gap: .75rem;
        align-items: center
    }

    .brand .logo {
        width: 38px;
        height: 38px;
        border-radius: 8px;
        background: var(--clr-navy)
    }

    .brand strong {
        letter-spacing: .4px;
        font-weight: 800;
        color: var(--clr-navy)
    }

    .nav-links {
        display: flex;
        gap: 1.25rem;
        align-items: center
    }

    .nav-links a {
        opacity: .85;
        color: var(--clr-navy)
    }

    .nav-links a:hover {
        text-decoration: underline;
        text-underline-offset: 4px;
        opacity: 1
    }

    .cta {
        padding: .75rem 1rem;
        border-radius: 10px;
        font-weight: 600;
        border: 1px solid var(--clr-navy);
        background: var(--clr-navy);
        color: #fff
    }

    .ghost {
        background: transparent;
        color: var(--clr-navy);
        border: 1px solid var(--clr-navy)
    }

    .burger {
        display: none;
        width: 40px;
        height: 40px;
        place-items: center;
        border-radius: 8px;
        border: 1px solid rgba(11, 31, 58, .2)
    }

    .mobile-menu {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(255, 255, 255, .95);
        backdrop-filter: blur(8px);
        padding: var(--spacing-5)
    }

    .mobile-menu a {
        display: block;
        padding: 1rem 0;
        font-size: 1.125rem;
        border-bottom: 1px solid rgba(11, 31, 58, .15)
    }


    .hero::before {
        /* imagem */
        content: "";
        position: absolute;
        inset: 0;
        background: url('https://images.unsplash.com/photo-1581091870633-1e7eab09061c?q=80&w=1900&auto=format&fit=crop') center/cover no-repeat;
        filter: grayscale(.05) contrast(1.05) brightness(.98);
        z-index: -2;
    }

    .hero::after {
        /* overlay mais leve para não "lavar" o texto */
        content: "";
        position: absolute;
        inset: 0;
        background: rgba(11, 31, 58, .28);
        z-index: -1;
    }

    .hero {
        position: relative;
        padding: clamp(4rem, 8vw, 9rem) 0 clamp(3rem, 6vw, 6rem);
        overflow: hidden;
        /* impede o vídeo de vazar para fora */
    }

    /* Vídeo de fundo */
    .hero-video {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        /* cobre toda a área sem distorcer */
        z-index: -1;
        /* fica atrás do conteúdo */
        opacity: 0.75;
        /* opcional: escurece o vídeo */
    }

    /* Conteúdo acima do vídeo */
    .hero-inner {
        position: relative;
        z-index: 2;
    }

    /* Cartão de foco atrás do texto para legibilidade consistente */
    .hero-focus {
        display: inline-block;
        border-radius: 14px;
        padding: 1rem 1.25rem;
        backdrop-filter: blur(2px);
    }

    .eyebrow {
        display: inline-block;
        padding: .35rem .65rem;
        border: 1px solid rgba(255, 255, 255, .45);
        border-radius: 999px;
        font-size: .85rem;
        letter-spacing: .3px;
        color: #fff
    }

    h1 {
        margin: 0;
        font-weight: 800;
        font-size: clamp(2.2rem, 3.5vw, 3.6rem);
        line-height: 1.12
    }

    .lead {
        font-size: clamp(1.05rem, 1.6vw, 1.25rem);
        max-width: 65ch
    }

    .hero-actions {
        display: flex;
        gap: .75rem;
        flex-wrap: wrap
    }

    /* Sections */
    section {
        padding: clamp(3rem, 7vw, 6rem) 0
    }

    .section-title {
        font-size: clamp(1.6rem, 2.6vw, 2.2rem);
        margin: 0 0 .75rem;
        font-weight: 800;
        color: var(--clr-navy)
    }

    .section-sub {
        color: var(--clr-text-dim);
        margin: 0 0 2rem
    }

    .about {
        display: grid;
        grid-template-columns: 1.2fr .8fr;
        gap: var(--spacing-6)
    }

    .about-card {
        background: var(--clr-surface);
        border: 1px solid rgba(11, 31, 58, .1);
        border-radius: var(--radius-xl);
        padding: clamp(1.25rem, 2.5vw, 2rem);
        box-shadow: var(--shadow-md)
    }

    .about .media {
        position: relative;
        border-radius: var(--radius-xl);
        overflow: hidden;
        min-height: 420px;
        border: 1px solid rgba(11, 31, 58, .1)
    }

    .about .media img {
        width: 100%;
        height: 100%;
        object-fit: cover
    }

    /* Solutions */
    .solutions {
        display: grid;
        gap: 1rem;
        grid-template-columns: repeat(12, 1fr)
    }

    .solution-card {
        grid-column: span 4;
        min-height: 320px;
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
        border-radius: var(--radius-xl);
        overflow: hidden;
        position: relative;
        background: var(--clr-surface);
        border: 1px solid rgba(11, 31, 58, .1)
    }

    .solution-card picture,
    .solution-card img {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        filter: grayscale(.1)contrast(1.02)brightness(.95)
    }

    .solution-card::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, transparent 20%, rgba(11, 31, 58, .8)85%)
    }

    .solution-card .content {
        position: relative;
        z-index: 1;
        padding: 1.25rem;
        color: #fff
    }

    .solution-card h3 {
        margin: 0 0 .25rem;
        font-size: 1.25rem
    }

    .solution-card p {
        margin: 0
    }

    .badge {
        position: absolute;
        top: 14px;
        left: 14px;
        z-index: 1;
        background: var(--clr-navy);
        padding: .4rem .6rem;
        border-radius: 999px;
        font-size: .8rem;
        color: #fff
    }

    /* Clients */
    .logos {
        display: grid;
        grid-template-columns: repeat(6, 1fr);
        gap: 1rem;
        align-items: center
    }

    .logo {
        background: var(--clr-surface);
        border: 1px solid rgba(11, 31, 58, .1);
        border-radius: var(--radius-xl);
        padding: 1.25rem;
        height: 84px;
        display: grid;
        place-items: center;
        color: var(--clr-navy);
        font-weight: 600
    }

    .quote {
        margin-top: 2rem;
        padding: 1.25rem 1.5rem;
        border-left: 3px solid var(--clr-accent);
        color: var(--clr-text-dim);
        background: var(--clr-surface);
        border-radius: .5rem
    }

    /* Contact */
    .contact {
        display: grid;
        grid-template-columns: 1.1fr .9fr;
        gap: var(--spacing-6)
    }

    form {
        display: grid;
        gap: 1rem;
        background: var(--clr-surface);
        border: 1px solid rgba(11, 31, 58, .1);
        padding: 1.25rem;
        border-radius: var(--radius-xl)
    }

    label {
        font-weight: 600;
        color: var(--clr-navy)
    }

    input,
    textarea {
        width: 100%;
        background: #f7f9fc;
        color: var(--clr-text);
        border: 1px solid rgba(11, 31, 58, .15);
        border-radius: .75rem;
        padding: .9rem 1rem
    }

    input:focus,
    textarea:focus {
        outline: none;
        border-color: var(--clr-accent);
        box-shadow: 0 0 0 3px rgba(41, 128, 185, .2)
    }

    textarea {
        min-height: 150px;
        resize: vertical
    }

    /* Footer */
    footer {
        border-top: 1px solid rgba(11, 31, 58, .15);
        padding: 2rem 0;
        color: var(--clr-text-dim)
    }

    .footer-grid {
        display: grid;
        gap: 1rem;
        grid-template-columns: 1fr auto
    }

    @media(max-width:1024px) {
        .about {
            grid-template-columns: 1fr
        }

        .contact {
            grid-template-columns: 1fr
        }
    }

    @media(max-width:900px) {
        .solutions .solution-card {
            grid-column: span 6
        }

        .logos {
            grid-template-columns: repeat(3, 1fr)
        }
    }

    @media(max-width:640px) {
        .burger {
            display: grid
        }

        .nav-links {
            display: none
        }

        .solutions .solution-card {
            grid-column: span 12
        }

        .logos {
            grid-template-columns: repeat(2, 1fr)
        }

        .hero {
            padding-top: calc(var(--header-h)+2rem)
        }
    }