*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
    --bg:#f4f6fb;
    --surface:#ffffff;
    --surface2:#eef0f6;
    --border:#e0e3eb;
    --text:#1a1a2e;
    --text-muted:#6b7280;
    --accent:#5b5bd6;
    --accent-hover:#4a4ac4;
    --accent-glow:rgba(91,91,214,0.12);
    --accent-gradient:linear-gradient(135deg,#5b5bd6,#8b7cf7);
    --radius:12px;
    --radius-sm:8px;
}
html{scroll-behavior:smooth}
body{
    font-family:'Inter',-apple-system,sans-serif;
    background:var(--bg);
    color:var(--text);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent-hover)}
img{max-width:100%;height:auto;display:block}
.img-round{border-radius:var(--radius);box-shadow:0 4px 12px rgba(0,0,0,0.06)}
.img-hero{width:100%;max-width:400px;margin:32px auto 0}
.img-content{width:100%;border-radius:var(--radius);margin:24px 0;box-shadow:0 4px 12px rgba(0,0,0,0.06)}
.img-team{width:100%;max-width:500px;border-radius:var(--radius);margin:0 auto;box-shadow:0 4px 20px rgba(0,0,0,0.08)}

.container{max-width:1200px;margin:0 auto;padding:0 24px}

nav{
    position:fixed;top:0;left:0;right:0;z-index:1000;
    background:rgba(255,255,255,0.9);
    backdrop-filter:blur(16px) saturate(1.1);
    border-bottom:1px solid var(--border);
    box-shadow:0 1px 3px rgba(0,0,0,0.04);
}
nav .container{
    display:flex;align-items:center;justify-content:space-between;
    height:64px;
}
nav .logo{
    display:flex;align-items:center;gap:10px;
    font-weight:800;font-size:1.25rem;color:var(--text);
}
nav .logo span{color:var(--accent)}
nav .logo svg{width:32px;height:32px;flex-shrink:0}
nav .nav-links{display:flex;gap:24px;align-items:center}
nav .nav-links a{color:var(--text-muted);font-size:0.875rem;font-weight:500;transition:color .2s;white-space:nowrap}
nav .nav-links a:hover,nav .nav-links a.active{color:var(--text)}
nav .nav-links .dropdown{position:relative}
nav .nav-links .dropdown > a::after{content:'▾';margin-left:4px;font-size:0.7rem;opacity:0.6}
nav .nav-links .dropdown-menu{
    position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(4px);
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);
    padding:8px;min-width:220px;opacity:0;visibility:hidden;
    transition:opacity .2s,transform .2s,visibility .2s;
    box-shadow:0 12px 40px rgba(0,0,0,0.1);
}
nav .nav-links .dropdown:hover .dropdown-menu,
nav .nav-links .dropdown .dropdown-menu:hover{opacity:1;visibility:visible;transform:translateX(-50%) translateY(8px)}
nav .nav-links .dropdown-menu a{
    display:block;padding:8px 12px;border-radius:6px;
    color:var(--text-muted);font-size:0.8125rem;
    transition:background .2s,color .2s;
}
nav .nav-links .dropdown-menu a:hover{background:var(--accent-glow);color:var(--text)}
nav .cta-btn{
    background:var(--accent);color:#fff!important;
    padding:8px 20px;border-radius:100px;font-weight:600;font-size:0.8125rem;
    transition:transform .2s,box-shadow .2s;
}
nav .cta-btn:hover{transform:translateY(-1px);box-shadow:0 4px 20px var(--accent-glow)}
.mobile-toggle{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer}

section{padding:100px 0;position:relative}
section.alt{background:var(--surface2)}

.badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:6px 14px;border-radius:100px;
    background:var(--accent-glow);color:var(--accent);
    font-size:0.8125rem;font-weight:600;margin-bottom:16px;
    border:1px solid rgba(91,91,214,0.15);
}
.section-label{
    text-transform:uppercase;letter-spacing:2px;
    font-size:0.75rem;font-weight:600;color:var(--accent);
    margin-bottom:12px;
}
h2{
    font-size:clamp(1.75rem,4vw,2.75rem);
    font-weight:800;line-height:1.15;
    margin-bottom:16px;
}
h2 .highlight{
    background:linear-gradient(135deg,var(--accent),#7c6df0);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.subtitle{
    color:var(--text-muted);
    font-size:1.05rem;max-width:600px;
}

.btn{
    display:inline-flex;align-items:center;gap:8px;
    padding:14px 32px;border-radius:100px;
    font-weight:600;font-size:0.9375rem;
    transition:transform .2s,box-shadow .2s;cursor:pointer;border:none;
}
.btn-primary{
    background:var(--accent);color:#fff;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--accent-glow)}
.btn-outline{
    background:transparent;color:var(--text);
    border:1px solid var(--border);
}
.btn-outline:hover{background:var(--surface2);transform:translateY(-2px);box-shadow:0 1px 3px rgba(0,0,0,0.04)}

.fade-up{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* Homepage hero */
#hero{
    padding:160px 0 100px;
    background:linear-gradient(180deg,#eef1ff 0%,var(--bg) 100%);
    text-align:center;overflow:hidden;
}
#hero h1{
    font-size:clamp(2.2rem,6vw,4.2rem);
    font-weight:900;line-height:1.08;
    margin-bottom:20px;
}
#hero h1 .gradient{
    background:linear-gradient(135deg,#5b5bd6,#8b7cf7);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
#hero p{
    font-size:1.15rem;color:var(--text-muted);
    max-width:560px;margin:0 auto 36px;
}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero-stats{
    display:flex;justify-content:center;gap:48px;
    margin-top:64px;flex-wrap:wrap;
}
.hero-stats .stat{text-align:center}
.hero-stats .stat .num{
    font-size:1.75rem;font-weight:800;
    background:linear-gradient(135deg,#1a1a2e,#5b5bd6);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-stats .stat .label{font-size:0.8125rem;color:var(--text-muted);margin-top:2px}

/* Partners */
#partners .logos{
    display:flex;flex-wrap:wrap;justify-content:center;
    gap:32px 48px;align-items:center;margin-top:40px;
}
#partners .logos span{
    font-size:0.875rem;color:var(--text-muted);
    font-weight:600;opacity:0.6;
    transition:opacity .2s;
}
#partners .logos span:hover{opacity:1}

/* Stats row */
.stats-row{
    display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
    gap:24px;margin-top:48px;text-align:center;
}
.stats-row .item{
    background:var(--surface);border-radius:var(--radius);
    padding:32px 16px;border:1px solid var(--border);
    box-shadow:0 1px 3px rgba(0,0,0,0.04);
}
.stats-row .item .num{
    font-size:2rem;font-weight:800;
    background:linear-gradient(135deg,#1a1a2e,#5b5bd6);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.stats-row .item .label{font-size:0.8125rem;color:var(--text-muted);margin-top:4px}

/* Portfolio / Case studies */
.portfolio-grid{
    display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));
    gap:20px;margin-top:48px;
}
.portfolio-card{
    background:var(--surface);border-radius:var(--radius);
    padding:28px 24px;border:1px solid var(--border);
    transition:transform .25s,border-color .25s,box-shadow .25s;
    box-shadow:0 1px 3px rgba(0,0,0,0.04);
}
.portfolio-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 12px 40px rgba(91,91,214,0.1)}
.portfolio-card .tag{
    display:inline-block;padding:3px 10px;border-radius:100px;
    background:var(--accent-glow);color:var(--accent-hover);
    font-size:0.75rem;font-weight:600;margin-bottom:12px;
}
.portfolio-card h3{font-size:1.05rem;font-weight:700;margin-bottom:4px;color:var(--text)}
.portfolio-card .client{font-size:0.8125rem;color:var(--text-muted);margin-bottom:14px}
.portfolio-card .results{display:flex;flex-direction:column;gap:6px}
.portfolio-card .results span{
    font-size:0.875rem;color:var(--text);
    display:flex;align-items:center;gap:6px;
}
.portfolio-card .results span::before{
    content:'▲';color:var(--accent);font-size:0.7rem;
}
.portfolio-card .results span.down::before{content:'▼'}
.portfolio-card .results span.neutral::before{content:'◆';font-size:0.5rem}

/* Process */
.process-steps{
    display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
    gap:24px;margin-top:48px;
}
.process-step{
    position:relative;padding:28px 24px;
    background:var(--surface);border-radius:var(--radius);
    border:1px solid var(--border);
    box-shadow:0 1px 3px rgba(0,0,0,0.04);
}
.process-step .step-num{
    font-size:2.5rem;font-weight:900;
    color:var(--border);line-height:1;margin-bottom:8px;
}
.process-step h3{font-size:1rem;font-weight:700;margin-bottom:6px}
.process-step p{font-size:0.875rem;color:var(--text-muted)}

/* Why us */
.why-grid{
    display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
    gap:16px;margin-top:48px;
}
.why-card{
    background:var(--surface);border-radius:var(--radius);
    padding:24px;border:1px solid var(--border);
    transition:border-color .2s,box-shadow .2s;
    box-shadow:0 1px 3px rgba(0,0,0,0.04);
}
.why-card:hover{border-color:var(--accent)}
.why-card h3{font-size:0.95rem;font-weight:700;margin-bottom:6px}
.why-card p{font-size:0.85rem;color:var(--text-muted)}

/* Testimonials */
.testimonial-grid{
    display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));
    gap:20px;margin-top:48px;
}
.testimonial-card{
    background:var(--surface);border-radius:var(--radius);
    padding:28px 24px;border:1px solid var(--border);
    box-shadow:0 1px 3px rgba(0,0,0,0.04);
}
.testimonial-card .stars{color:#f59e0b;font-size:0.9rem;margin-bottom:12px}
.testimonial-card blockquote{
    font-size:0.9rem;color:var(--text);font-style:italic;
    line-height:1.7;margin-bottom:16px;
}
.testimonial-card .author{font-size:0.8125rem;font-weight:600}
.testimonial-card .role{font-size:0.75rem;color:var(--text-muted)}

/* FAQ */
.faq-list{max-width:720px;margin:48px auto 0}
.faq-item{
    border-bottom:1px solid var(--border);
    padding:16px 0;
}
.faq-question{
    display:flex;justify-content:space-between;align-items:center;
    width:100%;background:none;border:none;color:var(--text);
    font-size:0.95rem;font-weight:600;cursor:pointer;
    padding:8px 0;text-align:left;
}
.faq-question::after{
    content:'+';font-size:1.2rem;color:var(--text-muted);
    transition:transform .2s;flex-shrink:0;margin-left:12px;
}
.faq-item.open .faq-question::after{content:'−'}
.faq-answer{
    max-height:0;overflow:hidden;
    transition:max-height .3s ease,padding .3s;
}
.faq-item.open .faq-answer{
    max-height:300px;padding-bottom:8px;
}
.faq-answer p{font-size:0.875rem;color:var(--text-muted);line-height:1.7}

/* Contact */
#contact{background:var(--surface2)}
.contact-wrap{
    display:grid;grid-template-columns:1fr 1fr;
    gap:48px;margin-top:48px;align-items:start;
}
.contact-info h3{font-size:1.1rem;font-weight:700;margin-bottom:8px}
.contact-info p{color:var(--text-muted);font-size:0.9rem;margin-bottom:24px}
.contact-info .detail{display:flex;gap:12px;margin-bottom:16px;align-items:center}
.contact-info .detail .icon{
    width:36px;height:36px;border-radius:8px;
    background:var(--accent-glow);display:flex;
    align-items:center;justify-content:center;flex-shrink:0;
}
.contact-info .detail .icon svg{width:16px;height:16px;fill:none;stroke:var(--accent);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.contact-info .detail a{color:var(--text);font-size:0.9rem}
.contact-form{display:flex;flex-direction:column;gap:14px}
.contact-form input,.contact-form select,.contact-form textarea{
    background:var(--surface);border:1px solid var(--border);
    border-radius:var(--radius-sm);padding:12px 16px;
    color:var(--text);font-family:inherit;font-size:0.9rem;
    transition:border-color .2s;width:100%;
    box-shadow:0 1px 2px rgba(0,0,0,0.03);
}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
    outline:none;border-color:var(--accent);
}
.contact-form textarea{resize:vertical;min-height:120px}
.contact-form .btn-primary{width:100%;justify-content:center;padding:14px}

/* Related card on contact page */
.audit-card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:20px;box-shadow:0 1px 3px rgba(0,0,0,0.04)}

/* Service grid (homepage & overview) */
.service-grid{
    display:grid;
    grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
    gap:16px;margin-top:48px;
}
.service-card{
    display:block;
    background:var(--surface);border-radius:var(--radius);
    padding:28px 24px;border:1px solid var(--border);
    transition:transform .25s,border-color .25s,box-shadow .25s;
    cursor:pointer;text-decoration:none;color:inherit;
    box-shadow:0 1px 3px rgba(0,0,0,0.04);
}
.service-card:hover{
    transform:translateY(-4px);
    border-color:var(--accent);
    box-shadow:0 12px 40px rgba(91,91,214,0.1);
}
.service-card .icon{
    width:40px;height:40px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    background:var(--accent-glow);margin-bottom:16px;
    font-size:1.2rem;
}
.service-card h3{font-size:1rem;font-weight:700;margin-bottom:8px;color:var(--text)}
.service-card p{font-size:0.875rem;color:var(--text-muted);line-height:1.6}

/* Service page hero */
.page-hero{
    padding:140px 0 80px;
    background:linear-gradient(180deg,#eef1ff 0%,var(--bg) 100%);
}
.page-hero h1{
    font-size:clamp(2rem,5vw,3.2rem);
    font-weight:900;line-height:1.1;
    margin-bottom:16px;
}
.page-hero h1 .gradient{
    background:linear-gradient(135deg,var(--accent),#a78bfa);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.page-hero p{font-size:1.05rem;color:var(--text-muted);max-width:600px;margin-bottom:32px}

/* Content sections */
.content-grid{
    display:grid;grid-template-columns:1fr 1fr;
    gap:48px;align-items:center;
}
.content-grid .text h3{font-size:1.5rem;font-weight:700;margin-bottom:12px}
.content-grid .text p{color:var(--text-muted);margin-bottom:16px;font-size:0.95rem;line-height:1.7}
.content-grid .text ul{list-style:none;padding:0}
.content-grid .text ul li{
    padding:8px 0 8px 24px;position:relative;
    color:var(--text);font-size:0.9rem;
}
.content-grid .text ul li::before{
    content:'→';position:absolute;left:0;color:var(--accent);font-weight:700;
}
.content-grid .visual{
    background:var(--surface);border-radius:var(--radius);
    padding:40px;border:1px solid var(--border);
    text-align:center;font-size:3rem;min-height:240px;
    display:flex;align-items:center;justify-content:center;
    flex-direction:column;gap:12px;
    box-shadow:0 1px 3px rgba(0,0,0,0.04);
}
.content-grid .visual span{font-size:1rem;color:var(--text-muted);font-weight:500}

.benefits-grid{
    display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
    gap:16px;margin-top:40px;
}
.benefit-card{
    background:var(--surface);border-radius:var(--radius);
    padding:24px;border:1px solid var(--border);
    transition:border-color .2s,transform .2s,box-shadow .2s;
    box-shadow:0 1px 3px rgba(0,0,0,0.04);
}
.benefit-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.benefit-card .icon{font-size:1.5rem;margin-bottom:8px}
.benefit-card h4{font-size:0.95rem;font-weight:700;margin-bottom:4px}
.benefit-card p{font-size:0.85rem;color:var(--text-muted)}

/* CTA section */
.cta-section{
    background:linear-gradient(135deg,#eef1ff,#f4f6fb);
    text-align:center;
    border-top:1px solid var(--border);
    border-bottom:1px solid var(--border);
}
.cta-section h2{max-width:600px;margin:0 auto 12px}
.cta-section p{color:var(--text-muted);margin-bottom:28px}
.cta-section .btn{margin:0 4px}

/* Case study pages */
.case-hero{
    padding:140px 0 80px;
    background:linear-gradient(180deg,#eef1ff 0%,var(--bg) 100%);
}
.case-hero h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:900;line-height:1.1;margin-bottom:16px}
.case-hero h1 .gradient{
    background:linear-gradient(135deg,var(--accent),#a78bfa);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.case-hero .client-tag{font-size:0.875rem;color:var(--text-muted);margin-bottom:8px;font-weight:600}
.case-hero p{font-size:1.05rem;color:var(--text-muted);max-width:600px;margin-bottom:32px}
.case-results{
    display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
    gap:16px;margin-top:40px;
}
.case-result{
    background:var(--surface);border-radius:var(--radius);
    padding:28px 20px;border:1px solid var(--border);text-align:center;
    box-shadow:0 1px 3px rgba(0,0,0,0.04);
}
.case-result .num{
    font-size:2.2rem;font-weight:900;
    background:linear-gradient(135deg,#5b5bd6,#8b7cf7);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.case-result .label{font-size:0.8125rem;color:var(--text-muted);margin-top:4px}
.case-body{padding:0 0 60px}
.case-body h2{font-size:1.5rem;font-weight:700;margin-bottom:12px;margin-top:40px}
.case-body h3{font-size:1.1rem;font-weight:700;margin-bottom:8px;margin-top:32px}
.case-body p{color:var(--text-muted);font-size:0.95rem;line-height:1.8;margin-bottom:16px;max-width:none}
.case-body ul{list-style:none;padding:0;margin-bottom:20px}
.case-body ul li{
    padding:6px 0 6px 24px;position:relative;
    color:var(--text);font-size:0.9rem;
}
.case-body ul li::before{content:'→';position:absolute;left:0;color:var(--accent);font-weight:700}
.case-body .quote{
    background:var(--surface);border-radius:var(--radius);
    padding:28px 24px;border-left:3px solid var(--accent);margin:32px 0;
    box-shadow:0 1px 3px rgba(0,0,0,0.04);
}
.case-body .quote blockquote{font-style:italic;color:var(--text);font-size:0.95rem;line-height:1.7}
.case-body .quote cite{display:block;margin-top:12px;font-size:0.8125rem;color:var(--text-muted);font-style:normal}

/* Breadcrumb */
.breadcrumb{
    display:flex;gap:8px;align-items:center;
    font-size:0.8125rem;color:var(--text-muted);margin-bottom:24px;
}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{color:var(--text)}

/* Related services */
.related-grid{
    display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
    gap:16px;margin-top:40px;
}
.related-card{
    background:var(--surface2);border-radius:var(--radius);
    padding:24px;border:1px solid var(--border);
    transition:border-color .2s,transform .2s;display:block;
}
.related-card:hover{border-color:var(--accent);transform:translateY(-4px)}
.related-card h4{font-size:0.95rem;font-weight:700;margin-bottom:4px;color:var(--text)}
.related-card p{font-size:0.85rem;color:var(--text-muted)}

/* Footer */
footer{
    border-top:1px solid var(--border);
    padding:48px 0 32px;
    background:var(--surface);
}
footer .container{
    display:grid;grid-template-columns:2fr 1fr 1fr 1fr;
    gap:32px;
}
footer h4{font-size:0.8125rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);margin-bottom:16px}
footer a{display:block;font-size:0.875rem;color:var(--text-muted);margin-bottom:8px;transition:color .2s}
footer a:hover{color:var(--text)}
footer .brand p{font-size:0.875rem;color:var(--text-muted);margin-top:12px;line-height:1.7}
footer .bottom{
    grid-column:1/-1;
    border-top:1px solid var(--border);
    padding-top:24px;margin-top:16px;
    display:flex;justify-content:space-between;align-items:center;
    font-size:0.8125rem;color:var(--text-muted);flex-wrap:wrap;gap:8px;
}

@media(max-width:768px){
    section{padding:64px 0}
    #hero{padding:120px 0 64px}
    .page-hero{padding:110px 0 48px}
    nav .nav-links{display:none}
    nav .nav-links.open{
        display:flex;flex-direction:column;position:absolute;top:64px;left:0;right:0;
        background:var(--surface);border-bottom:1px solid var(--border);padding:20px 24px;gap:12px;
        box-shadow:0 4px 12px rgba(0,0,0,0.06);
    }
    nav .nav-links .dropdown-menu{
        position:static;transform:none;opacity:1;visibility:visible;
        background:transparent;border:none;padding:4px 0 4px 16px;box-shadow:none;
    }
    nav .nav-links .dropdown > a::after{content:'▾'}
    .mobile-toggle{display:block}
    .contact-wrap{grid-template-columns:1fr}
    .content-grid{grid-template-columns:1fr}
    .content-grid .visual{min-height:160px}
    footer .container{grid-template-columns:1fr 1fr}
    .hero-stats{gap:24px}
    .portfolio-grid{grid-template-columns:1fr}
    .service-grid{grid-template-columns:1fr}
    .why-grid{grid-template-columns:1fr}
    .testimonial-grid{grid-template-columns:1fr}
    footer .brand{grid-column:1/-1}
}
@media(max-width:480px){
    nav .container{padding:0 16px}
    .container{padding:0 16px}
    .hero-actions{flex-direction:column;align-items:center}
    .btn{width:100%;justify-content:center}
    footer .container{grid-template-columns:1fr}
}