/* ============================================================
       CSS VARIABLES & RESET
    ============================================================ */
    :root {
        --bg-base: #0b0f1a;
        --bg-surface: #111827;
        --bg-card: #161d2e;
        --accent: #3b82f6;
        --accent-glow: rgba(59, 130, 246, 0.35);
        --accent-light: #60a5fa;
        --text-primary: #f1f5f9;
        --text-secondary: #94a3b8;
        --text-muted: #475569;
        --border: rgba(255, 255, 255, 0.07);
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 20px;
        --nav-h: 68px;
        --transition: 250ms cubic-bezier(.4, 0, .2, 1);
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: 'DM Sans', sans-serif;
        background-color: var(--bg-base);
        color: var(--text-primary);
        line-height: 1.6;
        overflow-x: hidden;
    }

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

    ul {
        list-style: none;
    }

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

    /* ============================================================
       UTILITY
    ============================================================ */
    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 1.5rem;
    }

    .section-label {
        display: inline-flex;
        align-items: center;
        gap: .5rem;
        font-size: .75rem;
        font-weight: 500;
        letter-spacing: .12em;
        text-transform: uppercase;
        color: var(--accent-light);
        margin-bottom: 1rem;
    }

    .section-label::before {
        content: '';
        display: inline-block;
        width: 18px;
        height: 2px;
        background: var(--accent);
    }

    .section-title {
        font-family: sans-serif;
        font-size: clamp(2rem, 4vw, 3rem);
        font-weight: 800;
        line-height: 1.15;
        color: var(--text-primary);
    }

    /* ============================================================
       NOISE OVERLAY
    ============================================================ */
    body::before {
        content: '';
        position: fixed;
        inset: 0;
        background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
        opacity: .025;
        pointer-events: none;
        z-index: 1000;
    }

    /* ============================================================
       HEADER / NAV
       Inspirado no navbar do Half-Life:
       barra fixa, fundo escuro, links uppercase em negrito, efeito
       de hover com preenchimento em skew (perspectiva diagonal)
    ============================================================ */
    header.main-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 900;
        background: rgba(11, 15, 26, .88);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--border);
    }

    nav.top-nav {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: var(--nav-h);
    }

    /* Logo */
    .nav-logo {
        display: flex;
        align-items: center;
        gap: .6rem;
        font-family: sans-serif;
        font-weight: 800;
        font-size: 1.25rem;
        letter-spacing: -.01em;
        color: var(--text-primary);
    }

    .nav-logo .logo-mark {
        width: 34px;
        height: 34px;
        background: var(--accent);
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: .9rem;
        font-weight: 800;
        color: #fff;
        flex-shrink: 0;
    }

    /* Desktop menu */
    .nav-links {
        display: flex;
        align-items: center;
        gap: 0;
    }

    .nav-links li {
        position: relative;
        height: var(--nav-h);
        display: flex;
        align-items: center;
    }

    .nav-links li a {
        display: flex;
        align-items: center;
        height: 100%;
        padding: 0 1.25rem;
        font-size: .8rem;
        font-weight: 500;
        letter-spacing: .1em;
        text-transform: uppercase;
        color: var(--text-secondary);
        position: relative;
        overflow: hidden;
        transition: color var(--transition);
    }

    /* Efeito skew de hover — inspirado no pseudo-element ::before do navbar Half-Life */
    .nav-links li a::before {
        content: '';
        position: absolute;
        inset: 0;
        background: var(--accent);
        transform: skew(-28deg) translateX(-120%);
        transition: transform 360ms cubic-bezier(.4, 0, .2, 1);
        z-index: -1;
    }

    .nav-links li a:hover::before {
        transform: skew(-28deg) translateX(-10%);
    }

    .nav-links li a:hover {
        color: #fff;
    }

    /* Active state */
    .nav-links li.active a {
        color: #fff;
    }

    .nav-links li.active a::before {
        transform: skew(-28deg) translateX(-10%);
    }

    /* CTA button in nav */
    .nav-cta {
        display: inline-flex;
        align-items: center;
        padding: .55rem 1.25rem;
        background: var(--accent);
        color: #fff !important;
        border-radius: var(--radius-sm);
        font-size: .8rem;
        font-weight: 500;
        letter-spacing: .08em;
        text-transform: uppercase;
        margin-left: 1rem;
        transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
    }

    .nav-cta:hover {
        background: var(--accent-light) !important;
        box-shadow: 0 0 24px var(--accent-glow);
        transform: translateY(-1px);
    }

    /* sem skew para o cta */
    .nav-links li.nav-cta-wrap a::before {
        display: none;
    }

    /* Hamburger (mobile) */
    .hamburger {
        display: none;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        padding: .5rem;
        background: none;
        border: none;
        z-index: 950;
    }

    .hamburger span {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--text-primary);
        border-radius: 2px;
        transition: transform var(--transition), opacity var(--transition);
    }

    .hamburger.open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

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

    .hamburger.open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* Mobile dropdown */
    .mobile-nav {
        display: none;
        position: absolute;
        top: var(--nav-h);
        left: 0;
        right: 0;
        background: var(--bg-surface);
        border-bottom: 1px solid var(--border);
        padding: 1rem 0;
    }

    .mobile-nav.open {
        display: block;
    }

    .mobile-nav li a {
        display: block;
        padding: .85rem 1.5rem;
        font-size: .9rem;
        font-weight: 500;
        letter-spacing: .08em;
        text-transform: uppercase;
        color: var(--text-secondary);
        border-left: 3px solid transparent;
        transition: color var(--transition), border-color var(--transition), background var(--transition);
    }

    .mobile-nav li a:hover {
        color: var(--text-primary);
        border-color: var(--accent);
        background: rgba(59, 130, 246, .06);
    }

    .mobile-nav .m-cta {
        margin: .75rem 1.5rem 0;
    }

    .mobile-nav .m-cta a {
        display: block;
        text-align: center;
        padding: .75rem;
        background: var(--accent);
        color: #fff !important;
        border-radius: var(--radius-sm);
        border: none;
    }

    /* ============================================================
       HERO SECTION
    ============================================================ */
    .hero {
        min-height: 100vh;
        display: flex;
        align-items: center;
        padding-top: var(--nav-h);
        position: relative;
        overflow: hidden;
    }

    /* Glow radial de fundo */
    .hero::after {
        content: '';
        position: absolute;
        top: 10%;
        left: 55%;
        width: 700px;
        height: 700px;
        background: radial-gradient(ellipse at center, rgba(59, 130, 246, .18) 0%, transparent 70%);
        pointer-events: none;
    }

    /* Grade animada de fundo */
    .hero-grid {
        position: absolute;
        inset: 0;
        background-image:
            linear-gradient(rgba(59, 130, 246, .04) 1px, transparent 1px),
            linear-gradient(90deg, rgba(59, 130, 246, .04) 1px, transparent 1px);
        background-size: 60px 60px;
        mask-image: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, .4) 30%, rgba(0, 0, 0, .4) 70%, transparent 100%);
    }

    .hero-inner {
        position: relative;
        z-index: 2;
        max-width: 700px;
        padding: 5rem 0;
    }

    /* Badge de status */
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: .5rem;
        padding: .35rem .9rem;
        border: 1px solid rgba(59, 130, 246, .4);
        border-radius: 100px;
        font-size: .75rem;
        font-weight: 500;
        color: var(--accent-light);
        background: rgba(59, 130, 246, .08);
        margin-bottom: 1.75rem;
        letter-spacing: .06em;
    }

    .hero-badge .dot {
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--accent);
        animation: pulse 2s infinite;
    }

    @keyframes pulse {

        0%,
        100% {
            opacity: 1;
        }

        50% {
            opacity: .3;
        }
    }

    .hero h1 {
        font-family: sans-serif;
        font-size: clamp(2.8rem, 7vw, 5.5rem);
        font-weight: 800;
        line-height: 1.05;
        margin-bottom: 1.5rem;
    }

    /* Palavra em destaque */
    .hero h1 em {
        font-style: normal;
        color: var(--accent);
        position: relative;
    }

    .hero h1 em::after {
        content: '';
        position: absolute;
        bottom: 2px;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--accent);
        opacity: .3;
        border-radius: 2px;
    }

    .hero-sub {
        font-size: 1.15rem;
        color: var(--text-secondary);
        font-weight: 300;
        max-width: 540px;
        margin-bottom: 2.5rem;
        line-height: 1.7;
    }

    .hero-actions {
        display: flex;
        align-items: center;
        gap: 1rem;
        flex-wrap: wrap;
    }

    /* Botão primário — com brilho e lift no hover */
    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: .5rem;
        padding: .85rem 2rem;
        background: var(--accent);
        color: #fff;
        font-family: 'DM Sans', sans-serif;
        font-weight: 500;
        font-size: .95rem;
        border-radius: var(--radius-sm);
        border: none;
        cursor: pointer;
        position: relative;
        overflow: hidden;
        transition: box-shadow var(--transition), transform var(--transition);
    }

    .btn-primary::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(255, 255, 255, .15), transparent);
        opacity: 0;
        transition: opacity var(--transition);
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 32px var(--accent-glow);
    }

    .btn-primary:hover::before {
        opacity: 1;
    }

    /* Botão ghost */
    .btn-ghost {
        display: inline-flex;
        align-items: center;
        gap: .5rem;
        padding: .85rem 1.75rem;
        border: 1px solid var(--border);
        color: var(--text-secondary);
        font-size: .95rem;
        font-weight: 500;
        border-radius: var(--radius-sm);
        transition: border-color var(--transition), color var(--transition), background var(--transition);
    }

    .btn-ghost:hover {
        border-color: var(--accent);
        color: var(--text-primary);
        background: rgba(59, 130, 246, .06);
    }

    /* Seta animada nos botões */
    .arrow-icon {
        display: inline-block;
        transition: transform var(--transition);
    }

    .btn-primary:hover .arrow-icon,
    .btn-ghost:hover .arrow-icon {
        transform: translateX(4px);
    }

    /* Estatísticas do hero */
    .hero-stats {
        display: flex;
        gap: 2.5rem;
        margin-top: 3.5rem;
        padding-top: 2.5rem;
        border-top: 1px solid var(--border);
        flex-wrap: wrap;
    }

    .stat {
        display: flex;
        flex-direction: column;
    }

    .stat-num {
        font-family: sans-serif;
        font-size: 2rem;
        font-weight: 800;
        color: var(--text-primary);
        line-height: 1;
    }

    .stat-label {
        font-size: .8rem;
        color: var(--text-muted);
        margin-top: .3rem;
        letter-spacing: .05em;
    }

    /* ============================================================
       SECTION WRAPPER
    ============================================================ */
    .section {
        padding: 6rem 0;
    }

    .section-header {
        margin-bottom: 3.5rem;
    }

    .section-header p {
        color: var(--text-secondary);
        font-size: 1.05rem;
        max-width: 520px;
        margin-top: .75rem;
        line-height: 1.7;
    }

    /* ============================================================
       SERVIÇOS
    ============================================================ */
    .services {
        background: var(--bg-surface);
    }

    .cards-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 1.5rem;
    }

    /* Card com elevação no hover */
    .card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        padding: 2rem;
        position: relative;
        overflow: hidden;
        transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    /* Linha de acento no topo do card — aparece no hover */
    .card::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 2px;
        background: linear-gradient(90deg, transparent, var(--accent), transparent);
        opacity: 0;
        transition: opacity var(--transition);
    }

    .card:hover {
        transform: translateY(-6px);
        box-shadow: 0 16px 48px rgba(0, 0, 0, .5);
        border-color: rgba(59, 130, 246, .3);
    }

    .card:hover::after {
        opacity: 1;
    }

    .card-icon {
        width: 52px;
        height: 52px;
        border-radius: var(--radius-sm);
        background: rgba(59, 130, 246, .12);
        border: 1px solid rgba(59, 130, 246, .2);
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 1.5rem;
        font-size: 1.4rem;
    }

    .card h3 {
        font-family: sans-serif;
        font-size: 1.3rem;
        font-weight: 700;
        margin-bottom: .6rem;
    }

    .card p {
        color: var(--text-secondary);
        font-size: .9rem;
        line-height: 1.7;
        margin-bottom: 1.5rem;
    }

    .card-tags {
        display: flex;
        flex-wrap: wrap;
        gap: .4rem;
    }

    .tag {
        padding: .25rem .65rem;
        background: rgba(255, 255, 255, .05);
        border: 1px solid var(--border);
        border-radius: 100px;
        font-size: .7rem;
        color: var(--text-muted);
        letter-spacing: .04em;
    }

    /* ============================================================
       DIFERENCIAIS
    ============================================================ */
    /* Grid com separadores em borda única — visual refinado */
    .diffs-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1px;
        background: var(--border);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        overflow: hidden;
    }

    .diff-item {
        background: var(--bg-base);
        padding: 2.5rem 2rem;
        transition: background var(--transition);
    }

    .diff-item:hover {
        background: var(--bg-card);
    }

    .diff-num {
        font-family: sans-serif;
        font-size: 2.5rem;
        font-weight: 800;
        color: var(--accent);
        opacity: .3;
        line-height: 1;
        margin-bottom: .75rem;
    }

    .diff-item h4 {
        font-family: sans-serif;
        font-size: 1.05rem;
        font-weight: 700;
        margin-bottom: .5rem;
    }

    .diff-item p {
        font-size: .88rem;
        color: var(--text-secondary);
        line-height: 1.7;
    }

    /* ============================================================
       DEPOIMENTOS
    ============================================================ */
    .testimonials {
        background: var(--bg-surface);
    }

    .testimonials-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.5rem;
    }

    .testimonial-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        padding: 2rem;
        transition: transform var(--transition), box-shadow var(--transition);
    }

    .testimonial-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 12px 36px rgba(0, 0, 0, .4);
    }

    .quote-mark {
        font-size: 3.5rem;
        line-height: .5;
        color: var(--accent);
        opacity: .25;
        font-family: sans-serif;
        font-weight: 800;
        margin-bottom: 1rem;
        display: block;
    }

    .testimonial-card blockquote {
        font-size: .93rem;
        color: var(--text-secondary);
        line-height: 1.75;
        margin-bottom: 1.5rem;
        font-style: italic;
    }

    .testimonial-author {
        display: flex;
        align-items: center;
        gap: .8rem;
    }

    .author-avatar {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: .9rem;
        font-weight: 700;
        color: #fff;
        flex-shrink: 0;
    }

    .av1 {
        background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    }

    .av2 {
        background: linear-gradient(135deg, #06b6d4, #3b82f6);
    }

    .av3 {
        background: linear-gradient(135deg, #8b5cf6, #ec4899);
    }

    .author-info strong {
        display: block;
        font-size: .88rem;
        font-weight: 500;
        color: var(--text-primary);
    }

    .author-info span {
        font-size: .78rem;
        color: var(--text-muted);
    }

    .stars {
        color: #f59e0b;
        font-size: .85rem;
        margin-bottom: .75rem;
        letter-spacing: 1px;
    }

    /* ============================================================
       CTA BAND
    ============================================================ */
    .cta-band {
        padding: 5rem 0;
        position: relative;
        overflow: hidden;
    }

    .cta-band::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(59, 130, 246, .12) 0%, rgba(139, 92, 246, .08) 100%);
    }

    .cta-band-inner {
        position: relative;
        z-index: 2;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 2rem;
        flex-wrap: wrap;
    }

    .cta-band h2 {
        font-family: sans-serif;
        font-size: clamp(1.6rem, 3vw, 2.5rem);
        font-weight: 800;
        line-height: 1.2;
    }

    .cta-band p {
        color: var(--text-secondary);
        margin-top: .5rem;
        font-size: .95rem;
    }

    /* ============================================================
       FOOTER
    ============================================================ */
    footer.main-footer {
        background: var(--bg-surface);
        border-top: 1px solid var(--border);
        padding: 3.5rem 0 2rem;
    }

    .footer-inner {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr;
        gap: 3rem;
        margin-bottom: 3rem;
    }

    .footer-brand .nav-logo {
        margin-bottom: 1rem;
    }

    .footer-brand p {
        font-size: .88rem;
        color: var(--text-muted);
        line-height: 1.7;
        max-width: 280px;
        margin-bottom: 1.5rem;
    }

    .social-links {
        display: flex;
        gap: .75rem;
    }

    .social-link {
        width: 36px;
        height: 36px;
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: .85rem;
        color: var(--text-muted);
        transition: border-color var(--transition), color var(--transition), background var(--transition);
    }

    .social-link:hover {
        border-color: var(--accent);
        color: var(--accent);
        background: rgba(59, 130, 246, .08);
    }

    .footer-col h5 {
        font-family: sans-serif;
        font-size: .85rem;
        font-weight: 700;
        letter-spacing: .1em;
        text-transform: uppercase;
        color: var(--text-primary);
        margin-bottom: 1.2rem;
    }

    .footer-col ul li+li {
        margin-top: .6rem;
    }

    .footer-col ul li a {
        font-size: .88rem;
        color: var(--text-muted);
        transition: color var(--transition);
    }

    .footer-col ul li a:hover {
        color: var(--accent);
    }

    .footer-bottom {
        border-top: 1px solid var(--border);
        padding-top: 1.5rem;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .footer-bottom p {
        font-size: .8rem;
        color: var(--text-muted);
    }

    .footer-bottom a {
        color: var(--accent-light);
    }

    /* ============================================================
       RESPONSIVIDADE
    ============================================================ */
    @media (max-width: 820px) {
        .nav-links {
            display: none;
        }

        .hamburger {
            display: flex;
        }

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

        .footer-inner {
            grid-template-columns: 1fr 1fr;
        }

        .footer-brand {
            grid-column: 1 / -1;
        }
    }

    @media (max-width: 540px) {
        .hero h1 {
            font-size: 2.5rem;
        }

        .hero-stats {
            gap: 1.5rem;
        }

        .footer-inner {
            grid-template-columns: 1fr;
        }

        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
    }

    /* ============================================================
       SCROLL REVEAL ANIMATION
    ============================================================ */
    .reveal {
        opacity: 0;
        transform: translateY(28px);
        transition: opacity 600ms ease, transform 600ms ease;
    }

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

    .reveal-delay-1 {
        transition-delay: 100ms;
    }

    .reveal-delay-2 {
        transition-delay: 200ms;
    }

    .reveal-delay-3 {
        transition-delay: 300ms;
    }