/* NetworkStacks — shared design system */
:root{
  --navy:#0B1E3D; --blue:#1A5FBB; --cyan:#00B4D8; --sky:#2B7FE8;
  --steel:#5B7FA6; --ice:#E8F1FA; --char:#1C2B3A; --white:#fff;
  --lgr:#F5F7FA; --line:#E2E8F0;
  --maxw:1140px; --radius:16px;
  --font-head:'Sora',system-ui,sans-serif; --font-body:'DM Sans',system-ui,sans-serif;
  --shadow:0 10px 30px rgba(11,30,61,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);color:var(--char);background:var(--white);line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--navy);line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(30px,4.6vw,46px);font-weight:700;letter-spacing:-.02em}
h2{font-size:clamp(24px,3vw,32px);font-weight:600;letter-spacing:-.01em}
h3{font-size:20px;font-weight:600}
p{margin:0 0 1em}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:64px 0}
.section.tight{padding:44px 0}
.bg-ice{background:var(--ice)}
.bg-lgr{background:var(--lgr)}
.eyebrow{display:inline-block;font-family:var(--font-head);font-weight:600;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);margin-bottom:14px}
.lead{font-size:20px;color:var(--char);max-width:720px}
.muted{color:var(--steel)}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-head);font-weight:600;font-size:15.5px;padding:13px 22px;border-radius:12px;border:1px solid transparent;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;text-decoration:none}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:#15509f;box-shadow:0 8px 22px rgba(26,95,187,.3)}
.btn-cyan{background:var(--cyan);color:var(--navy)}
.btn-cyan:hover{background:#16c3e6}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.btn-line{background:#fff;color:var(--navy);border-color:var(--line)}
.btn-line:hover{border-color:var(--steel)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}

/* header / nav */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:18px;height:68px}
.brand{display:flex;align-items:center;gap:9px;font-family:var(--font-head);font-weight:700;font-size:20px;color:var(--navy)}
.brand:hover{text-decoration:none}
.brand .dot{width:11px;height:11px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(0,180,216,.15)}
.menu{display:flex;align-items:center;gap:4px;margin-left:8px}
.menu>li{position:relative;list-style:none}
.menu>li>a{display:block;padding:10px 12px;color:var(--char);font-weight:500;font-size:15.5px;border-radius:8px}
.menu>li>a:hover,.menu>li>a[aria-current=page]{color:var(--navy);background:var(--ice);text-decoration:none}
.menu .has-sub>a::after{content:"▾";margin-left:5px;font-size:11px;color:var(--steel)}
.submenu{position:absolute;top:100%;left:0;min-width:248px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:8px;opacity:0;visibility:hidden;transform:translateY(6px);transition:.16s}
.menu>li:hover .submenu,.menu>li:focus-within .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.submenu a{display:block;padding:9px 12px;border-radius:8px;color:var(--char);font-size:15px}
.submenu a:hover{background:var(--ice);text-decoration:none}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-tel{color:var(--navy);font-weight:600;font-family:var(--font-head);font-size:15px;white-space:nowrap}
.nav-tel:hover{color:var(--blue);text-decoration:none}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:10px;width:44px;height:42px;cursor:pointer;font-size:20px;color:var(--navy)}

/* hero / page header */
.hero{background:radial-gradient(1100px 500px at 80% -10%,rgba(0,180,216,.18),transparent 60%),linear-gradient(180deg,#0B1E3D,#0d2347);color:#fff;padding:78px 0 70px}
.hero .eyebrow{color:var(--cyan)}
.hero h1{color:#fff}
.hero .lead{color:rgba(255,255,255,.82)}
.hero.page{padding:54px 0 48px}
.hero .btn-row{margin-top:22px}
.proof{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.proof span{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:8px 14px;font-size:14px;color:rgba(255,255,255,.85)}
.proof b{color:#fff;font-family:var(--font-head)}

/* breadcrumb */
.crumb{background:var(--lgr);border-bottom:1px solid var(--line);font-size:13.5px}
.crumb ol{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:0;padding:11px 0}
.crumb li::after{content:"›";margin-left:6px;color:var(--steel)}
.crumb li:last-child::after{content:""}
.crumb a{color:var(--steel)}
.crumb li:last-child{color:var(--navy);font-weight:500}

/* grids & cards */
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.16s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:#cfe0f3}
.card h3{margin-bottom:8px}
.card p{color:var(--char);margin-bottom:14px}
.card .more{font-family:var(--font-head);font-weight:600;font-size:14.5px;color:var(--blue)}
.card .ico{width:42px;height:42px;border-radius:11px;background:var(--ice);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:14px}

/* checklist */
.checklist{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.checklist li{position:relative;padding-left:32px}
.checklist li::before{content:"";position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:6px;background:var(--cyan);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/16px no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/16px no-repeat}

/* two-col content */
.cols{display:grid;grid-template-columns:1.3fr .9fr;gap:40px;align-items:start}
.side{background:var(--ice);border:1px solid #d8e6f6;border-radius:var(--radius);padding:24px}
.side h3{margin-top:0}
.prose h2{margin-top:36px}
.prose h2:first-child{margin-top:0}

/* steps (method) */
.steps{display:grid;gap:14px;counter-reset:s}
.step{display:grid;grid-template-columns:54px 1fr;gap:16px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px}
.step .n{width:46px;height:46px;border-radius:12px;background:var(--navy);color:#fff;font-family:var(--font-head);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:18px}
.step h3{margin:0 0 4px}
.step p{margin:0;color:var(--steel)}

/* faq */
.faq{max-width:820px}
.faq details{border:1px solid var(--line);border-radius:12px;padding:2px 18px;margin-bottom:12px;background:#fff}
.faq details[open]{border-color:#cfe0f3;box-shadow:var(--shadow)}
.faq summary{font-family:var(--font-head);font-weight:600;color:var(--navy);cursor:pointer;list-style:none;padding:16px 0;display:flex;justify-content:space-between;gap:16px;font-size:17px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--cyan);font-size:22px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:0 0 16px;color:var(--char)}

/* cta band */
.cta-band{background:radial-gradient(800px 300px at 15% 0%,rgba(0,180,216,.2),transparent 60%),var(--navy);color:#fff}
.cta-band .inner{padding:56px 0;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.82);max-width:620px;margin:0 auto 22px}
.cta-band .btn-row{justify-content:center}

/* contact form */
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form input,.form select,.form textarea{width:100%;font-family:var(--font-body);font-size:16px;color:var(--char);border:1px solid var(--line);border-radius:11px;padding:13px 14px;background:#fff}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(26,95,187,.12)}
.form textarea{grid-column:1/-1;min-height:120px;resize:vertical}
.form .btn{grid-column:1/-1}
.contact-info{display:grid;gap:14px}
.contact-info .row{display:flex;gap:12px;align-items:flex-start}
.contact-info .row .ico{width:40px;height:40px;border-radius:10px;background:var(--ice);display:flex;align-items:center;justify-content:center;font-size:18px;flex:0 0 auto}
.contact-info a{color:var(--navy);font-weight:500}

/* footer */
.site-footer{background:var(--navy);color:rgba(255,255,255,.72);font-size:14.5px;padding:54px 0 26px}
.site-footer h4{color:#fff;font-size:14px;letter-spacing:.04em;text-transform:uppercase;margin:0 0 14px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px}
.site-footer a{color:rgba(255,255,255,.72);display:block;padding:4px 0}
.site-footer a:hover{color:#fff}
.site-footer .brand{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:20px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55)}

@media (max-width:860px){
  .g3,.g2,.cols,.form-grid,.foot-grid{grid-template-columns:1fr}
  .menu,.nav-tel{display:none}
  .burger{display:inline-flex;align-items:center;justify-content:center}
  .nav-right{margin-left:auto}
  .menu.open{display:block;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 16px;box-shadow:var(--shadow)}
  .menu.open>li{width:100%}
  .menu.open .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;padding:0 0 6px 12px;min-width:0}
  .cols{gap:26px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}
:focus-visible{outline:3px solid var(--sky);outline-offset:2px;border-radius:6px}


/* NetworkStacks page-specific animated hero graphics */
.hero.ns-visual-hero{position:relative;overflow:hidden}
.hero.ns-visual-hero>.container{display:grid;grid-template-columns:minmax(0,1fr) 390px;gap:42px;align-items:center;position:relative;z-index:1}
.ns-hero-copy{min-width:0}
.ns-hero-art{position:relative;min-height:300px;border:1px solid rgba(255,255,255,.14);border-radius:28px;background:linear-gradient(145deg,rgba(255,255,255,.10),rgba(255,255,255,.035));box-shadow:0 24px 70px rgba(0,0,0,.18),inset 0 1px 0 rgba(255,255,255,.12);overflow:hidden;isolation:isolate}
.ns-hero-art:before{content:"";position:absolute;inset:-1px;background:radial-gradient(circle at 25% 20%,rgba(0,180,216,.28),transparent 30%),radial-gradient(circle at 85% 75%,rgba(43,127,232,.20),transparent 34%);z-index:-1}
.ns-hero-art:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:28px 28px;mask-image:linear-gradient(120deg,rgba(0,0,0,.7),transparent 78%);pointer-events:none}
.ns-art-svg{width:100%;height:100%;min-height:300px;display:block}
.ns-card-shape{fill:rgba(255,255,255,.92);stroke:rgba(168,187,204,.55);stroke-width:1.3}
.ns-dark-card{fill:rgba(11,30,61,.72);stroke:rgba(0,180,216,.32);stroke-width:1.3}
.ns-blue-fill{fill:#1A5FBB}.ns-cyan-fill{fill:#00B4D8}.ns-sky-fill{fill:#2B7FE8}.ns-navy-fill{fill:#0B1E3D}.ns-ice-fill{fill:#E8F1FA}.ns-white-fill{fill:#fff}.ns-muted-stroke{stroke:rgba(255,255,255,.55)}
.ns-line{fill:none;stroke:#00B4D8;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.ns-line-blue{fill:none;stroke:#2B7FE8;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.ns-line-soft{fill:none;stroke:rgba(255,255,255,.48);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.ns-flow{stroke-dasharray:7 9;animation:nsDash 3.2s linear infinite}.ns-flow-fast{stroke-dasharray:5 8;animation:nsDash 1.8s linear infinite}.ns-orbit{transform-box:fill-box;transform-origin:center;animation:nsRotate 14s linear infinite}.ns-orbit-rev{transform-box:fill-box;transform-origin:center;animation:nsRotateRev 18s linear infinite}.ns-float{animation:nsFloat 5s ease-in-out infinite}.ns-float2{animation:nsFloat 6.5s ease-in-out infinite .4s}.ns-pulse{transform-box:fill-box;transform-origin:center;animation:nsPulse 2.2s ease-in-out infinite}.ns-pulse2{transform-box:fill-box;transform-origin:center;animation:nsPulse 2.8s ease-in-out infinite .45s}.ns-blink{animation:nsBlink 1.45s ease-in-out infinite}.ns-wave{fill:none;stroke:#00B4D8;stroke-width:3;stroke-linecap:round;opacity:.75;animation:nsWave 2.3s ease-in-out infinite}.ns-bar{transform-box:fill-box;transform-origin:bottom;animation:nsBars 2.4s ease-in-out infinite}.ns-bar.b2{animation-delay:.25s}.ns-bar.b3{animation-delay:.5s}.ns-bar.b4{animation-delay:.75s}.ns-scan{animation:nsScan 3.5s ease-in-out infinite}.ns-phone-ring{transform-box:fill-box;transform-origin:center;animation:nsRing 1.7s ease-in-out infinite}.ns-step-dot{animation:nsStep 4.8s ease-in-out infinite}.ns-step-dot.d2{animation-delay:.8s}.ns-step-dot.d3{animation-delay:1.6s}.ns-step-dot.d4{animation-delay:2.4s}.ns-step-dot.d5{animation-delay:3.2s}.ns-step-dot.d6{animation-delay:4s}
@keyframes nsDash{to{stroke-dashoffset:-64}}
@keyframes nsRotate{to{transform:rotate(360deg)}}
@keyframes nsRotateRev{to{transform:rotate(-360deg)}}
@keyframes nsFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes nsPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.15);opacity:.62}}
@keyframes nsBlink{0%,100%{opacity:.35}50%{opacity:1}}
@keyframes nsWave{0%,100%{opacity:.25;transform:scale(.97)}50%{opacity:.95;transform:scale(1.04)}}
@keyframes nsBars{0%,100%{transform:scaleY(.45)}50%{transform:scaleY(1)}}
@keyframes nsScan{0%,100%{transform:translateY(-62px);opacity:.1}45%,55%{opacity:.95}50%{transform:translateY(72px)}}
@keyframes nsRing{0%,100%{transform:rotate(-6deg)}50%{transform:rotate(8deg)}}
@keyframes nsStep{0%,100%{fill:#2B7FE8;opacity:.45}12%,25%{fill:#00B4D8;opacity:1}}
@media (max-width:900px){.hero.ns-visual-hero>.container{grid-template-columns:1fr}.ns-hero-art{min-height:260px;max-width:430px}.ns-art-svg{min-height:260px}.hero.ns-visual-hero .lead{max-width:100%}}
@media (max-width:560px){.ns-hero-art{display:none}.hero.ns-visual-hero>.container{display:block}}


/* ===== Brand logo ===== */
.brand-logo{height:50px;width:auto;display:block}
.brand-logo-foot{height:58px;width:auto;display:block}

/* ===== Hero with photographic background ===== */
.hero-bg{position:relative;isolation:isolate;background:linear-gradient(180deg,#0B1E3D,#0d2347)}
.hero-bg::before{content:"";position:absolute;inset:0;background-size:cover;background-position:center;z-index:-2}
.hero-bg::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(95deg,rgba(11,30,61,.95) 0%,rgba(11,30,61,.86) 38%,rgba(11,30,61,.62) 72%,rgba(13,35,71,.5) 100%),
  radial-gradient(900px 420px at 88% -12%,rgba(0,180,216,.22),transparent 60%)}
.hero-bg>.container{position:relative;display:block}
.hero-copy{max-width:800px}
.hero-bg .lead{max-width:720px}
.hero-bg h1{text-shadow:0 2px 24px rgba(11,30,61,.55)}
@media (max-width:560px){.hero-bg::after{background:linear-gradient(rgba(11,30,61,.92),rgba(13,35,71,.9))}}

/* per-page hero images */
.hero-home::before{background-image:url("https://images.unsplash.com/photo-1558494949-ef010cbdcc31?auto=format&fit=crop&w=1600&q=60")}
.hero-services::before{background-image:url("https://images.unsplash.com/photo-1519389950473-47ba0277781c?auto=format&fit=crop&w=1600&q=60")}
.hero-support::before{background-image:url("https://images.unsplash.com/photo-1551434678-e076c223a692?auto=format&fit=crop&w=1600&q=60")}
.hero-cloud::before{background-image:url("https://images.unsplash.com/photo-1451187580459-43490279c0fa?auto=format&fit=crop&w=1600&q=60")}
.hero-network::before{background-image:url("https://images.unsplash.com/photo-1544197150-b99a580bb7a8?auto=format&fit=crop&w=1600&q=60")}
.hero-monitoring::before{background-image:url("https://images.unsplash.com/photo-1551288049-bebda4e38f71?auto=format&fit=crop&w=1600&q=60")}
.hero-wifi::before{background-image:url("https://images.unsplash.com/photo-1545987796-200677ee1011?auto=format&fit=crop&w=1600&q=60")}
.hero-voip::before{background-image:url("https://images.unsplash.com/photo-1519494026892-80bbd2d6fd0d?auto=format&fit=crop&w=1600&q=60")}
.hero-security::before{background-image:url("https://images.unsplash.com/photo-1550751827-4bd374c3f58b?auto=format&fit=crop&w=1600&q=60")}
.hero-solutions::before{background-image:url("https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1600&q=60")}
.hero-business::before{background-image:url("https://images.unsplash.com/photo-1497366216548-37526070297c?auto=format&fit=crop&w=1600&q=60")}
.hero-hotel::before{background-image:url("https://images.unsplash.com/photo-1566073771259-6a8506099945?auto=format&fit=crop&w=1600&q=60")}
.hero-method::before{background-image:url("https://images.unsplash.com/photo-1552664730-d307ca884978?auto=format&fit=crop&w=1600&q=60")}
.hero-company::before{background-image:url("https://images.unsplash.com/photo-1522071820081-009f0129c71c?auto=format&fit=crop&w=1600&q=60")}
.hero-blog::before{background-image:url("https://images.unsplash.com/photo-1455390582262-044cdead277a?auto=format&fit=crop&w=1600&q=60")}
.hero-contact::before{background-image:url("https://images.unsplash.com/photo-1423666639041-f56000c27a9a?auto=format&fit=crop&w=1600&q=60")}