/* ==========================================================================
   Nexnode — Design System
   ========================================================================== */

:root{
  --bg:#0A0B0D;
  --bg-alt:#0F1115;
  --card:#14171D;
  --card-hi:#1A1E26;
  --border:#242932;
  --border-hi:#333944;
  --text:#F3F5F8;
  --text-2:#C3CAD4;
  --muted:#8D96A3;
  --accent:#DC2828;
  --accent-hi:#EE3B3B;
  --accent-soft:rgba(220,40,40,.12);
  --white:#FFFFFF;
  --radius:14px;
  --radius-sm:10px;
  --maxw:1180px;
  --shadow:0 18px 40px -12px rgba(0,0,0,.7);
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.18;letter-spacing:-.022em;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

/* ---------- Layout ---------- */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0;position:relative}
.section--alt{background:var(--bg-alt)}
.section--tight{padding:72px 0}
.center{text-align:center}
.mx-auto{margin-left:auto;margin-right:auto}
.narrow{max-width:720px}
.mid{max-width:900px}

/* ---------- Type ---------- */
.eyebrow{
  display:inline-block;padding:6px 14px;margin-bottom:20px;
  font-size:11.5px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;
  color:var(--text-2);border:1px solid var(--border-hi);border-radius:999px;
  background:rgba(255,255,255,.02);
}
.h1{font-size:clamp(2.35rem,5.4vw,4rem);line-height:1.1;padding-bottom:.08em}
.h2{font-size:clamp(1.85rem,3.6vw,2.7rem);padding-bottom:.05em}
.h3{font-size:1.2rem;font-weight:650}
.lead{font-size:clamp(1.02rem,1.7vw,1.18rem);color:var(--text-2);line-height:1.7}
.muted{color:var(--muted)}
.accent{color:var(--accent)}
.sec-head{margin-bottom:56px}
.sec-head .lead{max-width:640px;margin-left:auto;margin-right:auto}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 28px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-family:inherit;font-size:.97rem;font-weight:600;letter-spacing:.01em;
  cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.btn svg{width:17px;height:17px;flex-shrink:0}
.btn--primary{background:var(--accent);color:#fff;box-shadow:0 8px 24px -8px rgba(220,40,40,.65)}
.btn--primary:hover{background:var(--accent-hi);transform:translateY(-1px);box-shadow:0 12px 30px -8px rgba(220,40,40,.8)}
.btn--ghost{background:transparent;color:var(--text);border-color:var(--border-hi)}
.btn--ghost:hover{background:rgba(255,255,255,.05);border-color:#4A5261}
.btn--sm{padding:10px 20px;font-size:.9rem}
.btn--block{width:100%}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}
.btn-row.center{justify-content:center}

/* ---------- Header ---------- */
.hdr{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(10,11,13,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.hdr__in{display:flex;align-items:center;justify-content:space-between;height:74px}
.hdr__logo img{height:38px;width:auto}
.hdr__nav{display:flex;align-items:center;gap:34px}
.hdr__nav a{font-size:.93rem;font-weight:500;color:var(--text-2);transition:color .18s}
.hdr__nav a:hover,.hdr__nav a.is-active{color:var(--text)}
.hdr__cta{display:flex;align-items:center;gap:18px}
.hdr__tel{font-size:.9rem;font-weight:600;color:var(--text-2);transition:color .18s}
.hdr__tel:hover{color:var(--accent)}
.burger{
  display:none;background:none;border:0;padding:8px;cursor:pointer;color:var(--text);
}
.burger svg{width:26px;height:26px}
.mnav{display:none;border-top:1px solid var(--border);background:var(--bg)}
.mnav.open{display:block}
.mnav a{display:block;padding:14px 0;font-size:1rem;font-weight:500;color:var(--text-2);border-bottom:1px solid var(--border)}
.mnav a:last-of-type{border-bottom:0}
.mnav .btn{margin:18px 0 24px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:170px 0 96px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(ellipse 70% 55% at 50% 0%,rgba(220,40,40,.16) 0%,transparent 65%),
    radial-gradient(ellipse 50% 40% at 85% 20%,rgba(220,40,40,.07) 0%,transparent 60%);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;opacity:.55;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 65% at 50% 30%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 80% 65% at 50% 30%,#000 30%,transparent 78%);
}
.hero > *{position:relative;z-index:1}
.hero--page{padding:150px 0 72px}
.hero__mark{height:76px;width:auto;margin:0 auto 30px}

/* ---------- Trust strip ---------- */
.trust{
  display:flex;flex-wrap:wrap;justify-content:center;align-items:center;
  gap:14px 40px;margin-top:52px;padding-top:30px;border-top:1px solid var(--border);
}
.trust span{position:relative;font-size:.86rem;font-weight:500;color:var(--muted)}
.trust span:not(:first-child)::before{
  content:"";position:absolute;left:-21px;top:50%;transform:translateY(-50%);
  width:3px;height:3px;border-radius:50%;background:var(--border-hi);
}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
  padding:30px 24px;border:1px solid var(--border);border-radius:var(--radius);
  background:var(--card);text-align:center;
}
.stat__n{font-size:2.1rem;font-weight:750;letter-spacing:-.03em;color:var(--accent);line-height:1.1}
.stat__l{margin-top:8px;font-size:.87rem;color:var(--muted);line-height:1.45}

/* ---------- Cards / grids ---------- */
.grid{display:grid;gap:22px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

.card{
  padding:32px;border:1px solid var(--border);border-radius:var(--radius);
  background:var(--card);transition:border-color .22s,background .22s,transform .22s;
}
.card:hover{border-color:var(--border-hi);background:var(--card-hi)}
a.card:hover{transform:translateY(-3px)}
.card__ico{
  width:46px;height:46px;border-radius:11px;background:var(--accent-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
}
.card__ico svg{width:22px;height:22px;color:var(--accent)}
.card h3{margin-bottom:10px}
.card p{color:var(--muted);font-size:.95rem}
.card__more{
  display:inline-flex;align-items:center;gap:7px;margin-top:18px;
  font-size:.88rem;font-weight:600;color:var(--accent);
}
.card__more svg{width:15px;height:15px;transition:transform .2s}
a.card:hover .card__more svg{transform:translateX(3px)}

/* ---------- Feature list ---------- */
.flist{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 32px}
.fitem{display:flex;gap:13px;align-items:flex-start}
.fitem svg{width:19px;height:19px;color:var(--accent);flex-shrink:0;margin-top:3px}
.fitem span{font-size:.95rem;color:var(--text-2)}

/* ---------- Split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}

/* ---------- Process steps ---------- */
.steps{counter-reset:s;display:grid;gap:18px}
.step{
  position:relative;padding:26px 30px 26px 78px;
  border:1px solid var(--border);border-radius:var(--radius);background:var(--card);
}
.step::before{
  counter-increment:s;content:counter(s);
  position:absolute;left:26px;top:26px;
  width:34px;height:34px;border-radius:9px;
  background:var(--accent-soft);color:var(--accent);
  font-size:.95rem;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.step h3{margin-bottom:6px;font-size:1.05rem}
.step p{color:var(--muted);font-size:.94rem}

/* ---------- Logo tiles ---------- */
.logos{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.logos--clients{grid-template-columns:repeat(5,1fr)}
.tile{
  background:var(--white);border-radius:var(--radius-sm);
  padding:22px;min-height:112px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  transition:transform .22s;
}
.tile:hover{transform:translateY(-3px)}
.tile img{max-height:52px;width:auto;object-fit:contain}
.tile__l{font-size:.74rem;font-weight:600;color:#5A6472;text-align:center;letter-spacing:.02em}
.tile--sm{min-height:92px;padding:16px}
.tile--sm img{max-height:44px;width:auto;object-fit:contain}

/* ---------- Testimonials ---------- */
.quote{
  padding:32px;border:1px solid var(--border);border-radius:var(--radius);
  background:var(--card);display:flex;flex-direction:column;
}
.stars{color:#FFB020;font-size:.95rem;letter-spacing:3px;margin-bottom:16px}
.quote p{color:var(--text-2);font-size:.96rem;line-height:1.72;flex-grow:1}
.quote__by{margin-top:22px;padding-top:20px;border-top:1px solid var(--border)}
.quote__by strong{display:block;font-size:.95rem;font-weight:650;color:var(--text)}
.quote__by span{font-size:.85rem;color:var(--muted)}

/* ---------- CTA band ---------- */
.cta{
  border:1px solid var(--border);border-radius:20px;padding:64px 40px;text-align:center;
  background:
    radial-gradient(ellipse 60% 100% at 50% 0%,rgba(220,40,40,.15) 0%,transparent 70%),
    var(--card);
}
.cta h2{margin-bottom:16px}
.cta .lead{margin:0 auto 32px;max-width:560px}

/* ---------- Founder ---------- */
.founder{display:grid;grid-template-columns:auto 1fr;gap:32px;align-items:start}
.founder__av{
  width:104px;height:104px;border-radius:50%;
  background:var(--accent-soft);color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-size:2rem;font-weight:700;letter-spacing:.02em;flex-shrink:0;
  border:1px solid rgba(220,40,40,.25);overflow:hidden;
}
.founder__av img{width:100%;height:100%;object-fit:cover}
.founder p{color:var(--text-2);margin-bottom:14px;font-size:.97rem}

/* ---------- Contact ---------- */
.cinfo{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:56px}
.cinfo .card{text-align:center;padding:30px 22px}
.cinfo .card__ico{margin:0 auto 16px}
.cinfo h3{font-size:1rem;margin-bottom:4px}
.cinfo p,.cinfo a{color:var(--muted);font-size:.95rem}
.cinfo a:hover{color:var(--accent)}

/* ---------- Form ---------- */
.formwrap{
  border:1px solid var(--border);border-radius:20px;padding:44px;
  background:
    radial-gradient(ellipse 70% 100% at 50% 0%,rgba(220,40,40,.09) 0%,transparent 70%),
    var(--card);
}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.fgroup{margin-bottom:18px}
.flabel{display:block;font-size:.85rem;font-weight:550;color:var(--text-2);margin-bottom:8px}
.finput{
  width:100%;padding:13px 15px;font-family:inherit;font-size:.95rem;
  color:var(--text);background:rgba(255,255,255,.04);
  border:1px solid var(--border-hi);border-radius:var(--radius-sm);
  transition:border-color .18s,box-shadow .18s,background .18s;
}
.finput::placeholder{color:#5F6874}
.finput:focus{
  outline:none;border-color:var(--accent);background:rgba(255,255,255,.06);
  box-shadow:0 0 0 3px rgba(220,40,40,.16);
}
textarea.finput{resize:vertical;min-height:130px}
.fnote{margin-top:18px;text-align:center;font-size:.86rem;color:var(--muted)}
.fnote a{color:var(--accent);font-weight:550}
.fstatus{margin-top:16px;text-align:center;font-size:.92rem;min-height:1.4em}
.fstatus.ok{color:#4ADE80}
.fstatus.err{color:#F87171}
.fstatus a{color:inherit;text-decoration:underline;font-weight:600}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}

/* ---------- Article ---------- */
.article{max-width:760px;margin:0 auto}
.article__meta{display:flex;align-items:center;gap:14px;font-size:.87rem;color:var(--muted);margin-bottom:28px}
.article__body h2{font-size:1.4rem;margin:40px 0 14px}
.article__body p{color:var(--text-2);margin-bottom:18px;font-size:1.02rem;line-height:1.78}
.article__body strong{color:var(--text);font-weight:650}
.article__body em{color:var(--text);font-style:italic}
.srclist{margin:0 0 8px;padding:0}
.srclist li{position:relative;padding-left:18px;margin-bottom:10px;font-size:.95rem;color:var(--muted);line-height:1.6}
.srclist li::before{content:"";position:absolute;left:0;top:.62em;width:5px;height:5px;border-radius:50%;background:var(--accent)}
.srclist a{color:var(--text-2);border-bottom:1px solid var(--border-hi);transition:color .18s,border-color .18s}
.srclist a:hover{color:var(--accent);border-color:var(--accent)}
.back{display:inline-flex;align-items:center;gap:8px;font-size:.9rem;font-weight:550;color:var(--muted);margin-bottom:26px}
.back:hover{color:var(--accent)}
.back svg{width:15px;height:15px}
.tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:40px;padding-top:28px;border-top:1px solid var(--border)}
.tag{padding:6px 13px;border:1px solid var(--border-hi);border-radius:999px;font-size:.8rem;color:var(--muted)}
a.tag:hover{color:var(--accent);border-color:var(--accent)}

/* ---------- Legal ---------- */
.legal h2{font-size:1.2rem;margin:34px 0 10px}
.legal p{color:var(--text-2);font-size:.98rem;margin-bottom:14px}

/* ---------- Footer ---------- */
.ftr{background:var(--bg-alt);border-top:1px solid var(--border);padding:64px 0 32px}
.ftr__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;margin-bottom:48px}
.ftr__logo img{height:36px;width:auto;margin-bottom:18px}
.ftr__blurb{font-size:.92rem;color:var(--muted);max-width:290px}
.ftr h4{font-size:.82rem;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--text);margin-bottom:18px}
.ftr li{margin-bottom:11px}
.ftr li a{font-size:.92rem;color:var(--muted);transition:color .18s}
.ftr li a:hover{color:var(--accent)}
.ftr__btm{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  padding-top:28px;border-top:1px solid var(--border);
  font-size:.87rem;color:var(--muted);
}
.ftr__btm a:hover{color:var(--accent)}

/* ---------- Utilities ---------- */
.mb-0{margin-bottom:0}
.mt-40{margin-top:40px}
.mt-56{margin-top:56px}

/* ---------- Reveal ---------- */
.rv{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width:1000px){
  .logos{grid-template-columns:repeat(3,1fr)}
  .logos--clients{grid-template-columns:repeat(4,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .cinfo{grid-template-columns:repeat(2,1fr)}
  .ftr__grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:860px){
  .hdr__nav,.hdr__tel{display:none}
  .burger{display:block}
  .section{padding:72px 0}
  .hero{padding:132px 0 72px}
  .hero--page{padding:120px 0 56px}
  .grid--3,.grid--4,.grid--2{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:36px}
  .frow{grid-template-columns:1fr}
  .cinfo{grid-template-columns:1fr}
  .flist{grid-template-columns:1fr}
  .formwrap{padding:30px 22px}
  .cta{padding:48px 26px}
  .founder{grid-template-columns:1fr;gap:22px}
  .sec-head{margin-bottom:40px}
}
@media (max-width:560px){
  .logos,.logos--clients{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:1fr}
  .ftr__grid{grid-template-columns:1fr;gap:32px}
  .trust{gap:10px 26px}
  .trust span:not(:first-child)::before{display:none}
  .btn{width:100%}
  .btn-row{flex-direction:column}
  .section{padding:60px 0}
  .card{padding:26px}
  .step{padding:22px 22px 22px 68px}
}