/* =========================================================
   Network Planet — light slate theme (rebuild)
   Soft cool-gray paper, deep navy ink, cobalt + amber accents
   ========================================================= */

:root{
  /* surfaces — light but never pure white */
  --paper:     #eceff5;   /* page background */
  --paper-2:   #e4e8f1;   /* alt sections */
  --card:      #f6f8fc;   /* raised cards */
  --ink:       #16243d;   /* primary text (deep navy) */
  --ink-soft:  #4a5a76;
  --ink-dim:   #7c8aa3;
  --line:      #d4dbe8;
  --line-2:    #c2cbdd;

  /* brand */
  --blue:      #1f6feb;
  --blue-deep: #0f4fbf;
  --blue-tint: #dde9ff;
  --amber:     #e7872b;
  --amber-soft:#f0a73a;

  /* footer (dark band) */
  --foot:      #13243f;
  --foot-2:    #0e1c33;
  --foot-ink:  #c3d0e6;
  --foot-dim:  #7e90b0;

  /* type scale (modular ~1.2) */
  --t-xs:   0.8rem;
  --t-sm:   0.92rem;
  --t-base: 1.02rem;
  --t-md:   1.18rem;
  --t-lg:   1.42rem;
  --t-xl:   1.85rem;
  --t-2xl:  2.4rem;
  --t-3xl:  clamp(2.5rem, 4.6vw, 3.4rem);

  --radius:  16px;
  --maxw:    1140px;
  --shadow:  0 18px 44px -22px rgba(22,36,61,0.35);
  --shadow-sm: 0 8px 22px -14px rgba(22,36,61,0.3);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:"Public Sans", system-ui, sans-serif;
  font-size:var(--t-base);
  color:var(--ink);
  background:
    radial-gradient(900px 520px at 88% -8%, rgba(31,111,235,0.10), transparent 62%),
    radial-gradient(720px 480px at 2% 4%, rgba(231,135,43,0.07), transparent 58%),
    var(--paper);
  background-attachment:fixed;
  line-height:1.62;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

.wrap{ width:min(var(--maxw), 92vw); margin:0 auto; position:relative; }

a{ color:var(--blue-deep); text-decoration:none; transition:color .2s; }
a:hover{ color:var(--amber); }

h1,h2,h3,h4{
  font-family:"Fraunces", Georgia, serif;
  line-height:1.12; margin:0 0 .5em; color:var(--ink);
  font-weight:600; letter-spacing:-0.015em;
}
h1{ font-size:var(--t-3xl); font-weight:600; }
h2{ font-size:var(--t-2xl); }
h3{ font-size:var(--t-lg); }
h4{ font-size:var(--t-md); }
p{ margin:0 0 1rem; }

.accent{ color:var(--blue-deep); }
.amber{ color:var(--amber); }
.serif{ font-family:"Fraunces", Georgia, serif; }

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(236,239,245,0.82);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; height:88px; }
.brand-logo{ height:52px; display:block; }
.footer-logo{ height:50px; display:block; margin-bottom:16px; }

.site-nav{ display:flex; align-items:center; gap:6px; }
.site-nav a{
  color:var(--ink-soft); font-weight:600; font-size:var(--t-sm);
  padding:9px 16px; border-radius:999px; transition:all .2s;
}
.site-nav a:hover{ color:var(--ink); background:rgba(31,111,235,0.08); }
.site-nav a.active{ color:var(--blue-deep); background:var(--blue-tint); }
.site-nav .nav-cta{
  background:var(--blue); color:#fff; font-weight:700;
}
.site-nav .nav-cta:hover{ color:#fff; background:var(--blue-deep); }
.site-nav .nav-cta.active{ background:var(--blue-deep); color:#fff; }

.nav-toggle{ display:none; flex-direction:column; gap:5px; background:none; border:0; cursor:pointer; padding:8px; }
.nav-toggle span{ width:24px; height:2px; background:var(--ink); border-radius:2px; transition:.25s; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:.5em;
  padding:13px 24px; border-radius:999px; font-weight:700; font-size:var(--t-sm);
  border:1px solid transparent; cursor:pointer; transition:all .2s;
}
.btn-primary{ background:var(--blue); color:#fff; box-shadow:var(--shadow-sm); }
.btn-primary:hover{ color:#fff; background:var(--blue-deep); transform:translateY(-2px); }
.btn-ghost{ border-color:var(--line-2); color:var(--ink); background:var(--card); }
.btn-ghost:hover{ border-color:var(--blue); color:var(--blue-deep); }

/* ---------- eyebrow ---------- */
.eyebrow{
  display:inline-flex; align-items:center; gap:.6em;
  font-size:var(--t-xs); font-weight:700; letter-spacing:.14em;
  text-transform:uppercase; color:var(--amber);
  border:1px solid var(--line-2); padding:7px 15px; border-radius:999px;
  background:var(--card);
}
.eyebrow .dot{ width:7px; height:7px; border-radius:50%; background:var(--amber); }

/* ---------- hero ---------- */
.hero{ padding:74px 0 56px; }
.hero p.lead{ font-size:var(--t-md); color:var(--ink-soft); max-width:58ch; }
.hero-cta{ display:flex; gap:12px; flex-wrap:wrap; margin-top:26px; }

.hero-stats{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; margin-top:48px; max-width:600px; }
.hero-stats .stat{ border-left:3px solid var(--amber); padding-left:15px; }
.hero-stats .num{ font-family:"Fraunces",serif; font-size:var(--t-xl); font-weight:600; color:var(--ink); }
.hero-stats .lbl{ color:var(--ink-dim); font-size:var(--t-xs); text-transform:uppercase; letter-spacing:.07em; }

.hero-visual{ position:relative; min-height:320px; display:flex; align-items:center; justify-content:center; }
.node-art{ width:100%; max-width:440px; height:auto; filter:drop-shadow(0 24px 40px rgba(31,111,235,0.18)); }
.node-art .pulse{ animation:pulse 3.4s ease-in-out infinite; transform-origin:center; }
.node-art .pulse.b{ animation-delay:1.1s; }
.node-art .pulse.c{ animation-delay:2.2s; }
@keyframes pulse{ 0%,100%{ opacity:.4; } 50%{ opacity:1; } }
.node-art .spin{ transform-origin:240px 200px; animation:spin 46s linear infinite; }
@keyframes spin{ to{ transform:rotate(360deg); } }

/* ---------- sections ---------- */
section.block{ padding:60px 0; }
section.alt{ background:var(--paper-2); border-block:1px solid var(--line); }
.section-head{ max-width:60ch; margin-bottom:38px; }
.section-head .eyebrow{ margin-bottom:18px; }
.section-head p{ color:var(--ink-soft); font-size:var(--t-md); }

.split{ display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:center; }

/* ---------- cards ---------- */
.card-grid{ display:grid; gap:20px; }
.cols-3{ grid-template-columns:repeat(3,1fr); }
.cols-2{ grid-template-columns:repeat(2,1fr); }
.card{
  background:var(--card);
  border:1px solid var(--line); border-radius:var(--radius);
  padding:28px; transition:transform .25s, box-shadow .25s, border-color .25s;
}
.card:hover{ transform:translateY(-5px); box-shadow:var(--shadow); border-color:var(--line-2); }
.card .ico{
  width:48px; height:48px; border-radius:13px; display:grid; place-items:center;
  background:var(--blue-tint); color:var(--blue-deep); margin-bottom:16px;
}
.card .tag{ font-size:var(--t-xs); font-weight:700; color:var(--amber); letter-spacing:.1em; text-transform:uppercase; }
.card h3{ font-size:var(--t-lg); margin:6px 0 .4em; }
.card p{ color:var(--ink-soft); margin:0; font-size:var(--t-sm); }

/* ---------- brand chips ---------- */
.brands{ padding:30px 0; }
.brands .kicker{ text-align:center; color:var(--ink-dim); font-size:var(--t-xs); letter-spacing:.16em; text-transform:uppercase; font-weight:700; margin-bottom:18px; }
.brands .row{ display:flex; flex-wrap:wrap; gap:12px; justify-content:center; }
.brands .chip{
  font-weight:600; font-size:var(--t-sm); color:var(--ink-soft);
  padding:9px 18px; border:1px solid var(--line); border-radius:999px; background:var(--card);
}

/* ---------- product category panels ---------- */
.cat{
  display:grid; grid-template-columns:auto 1fr; gap:24px; align-items:start;
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:28px;
  transition:box-shadow .25s, border-color .25s;
}
.cat:hover{ box-shadow:var(--shadow); border-color:var(--line-2); }
.cat .badge{
  font-family:"Fraunces",serif; font-size:var(--t-lg); font-weight:600;
  color:var(--blue-deep); background:var(--blue-tint); border-radius:13px;
  width:58px; height:58px; display:grid; place-items:center;
}
.cat h3{ font-size:var(--t-lg); margin-bottom:.25em; }
.cat .brand-list{ display:flex; flex-wrap:wrap; gap:8px; margin-top:14px; }
.cat .brand-list span{
  font-size:var(--t-xs); font-weight:600; color:var(--ink-soft);
  background:var(--paper-2); border:1px solid var(--line); padding:5px 11px; border-radius:8px;
}

/* ---------- feature list ---------- */
.feature-list{ list-style:none; padding:0; margin:18px 0 0; display:grid; gap:13px; }
.feature-list li{ display:flex; gap:13px; align-items:flex-start; color:var(--ink-soft); font-size:var(--t-sm); }
.feature-list .check{
  flex:none; width:25px; height:25px; border-radius:8px; display:grid; place-items:center;
  background:var(--blue-tint); color:var(--blue-deep); font-weight:700; font-size:var(--t-xs);
}
.feature-list strong{ color:var(--ink); }

/* ---------- CTA banner ---------- */
.cta-banner{
  background:linear-gradient(115deg, var(--blue), var(--blue-deep));
  border-radius:22px; padding:50px; text-align:center; color:#fff; position:relative; overflow:hidden;
}
.cta-banner::after{
  content:""; position:absolute; right:-60px; top:-60px; width:260px; height:260px; border-radius:50%;
  background:radial-gradient(circle, rgba(240,167,58,0.45), transparent 70%);
}
.cta-banner h2{ color:#fff; margin-bottom:.3em; position:relative; }
.cta-banner p{ color:rgba(255,255,255,0.86); max-width:50ch; margin:0 auto 22px; position:relative; }
.cta-banner .btn-primary{ background:#fff; color:var(--blue-deep); position:relative; }
.cta-banner .btn-primary:hover{ background:var(--amber-soft); color:#3a2406; }
.cta-banner.left{ text-align:left; }
.cta-banner.left p{ margin-left:0; }

/* ---------- contact + form ---------- */
.contact-grid{ display:grid; grid-template-columns:.85fr 1.15fr; gap:36px; align-items:start; }
.contact-card{ background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:30px; }
.contact-card h3{ font-size:var(--t-xl); margin-top:10px; }
.contact-line{ display:flex; gap:14px; align-items:center; margin:18px 0; }
.contact-line .ico{
  flex:none; width:44px; height:44px; border-radius:12px; display:grid; place-items:center;
  background:var(--blue-tint); color:var(--blue-deep);
}
.contact-line .label{ font-size:var(--t-xs); text-transform:uppercase; letter-spacing:.1em; color:var(--ink-dim); font-weight:700; }
.contact-line .val{ font-weight:600; font-size:var(--t-base); }

.form{ background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:32px; }
.field{ margin-bottom:18px; }
.field label{ display:block; font-size:var(--t-sm); font-weight:600; color:var(--ink); margin-bottom:7px; }
.field label .req{ color:var(--amber); }
.field input, .field textarea{
  width:100%; padding:13px 15px; border-radius:11px;
  background:#fff; border:1px solid var(--line-2); color:var(--ink);
  font-family:inherit; font-size:var(--t-base); transition:border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus{
  outline:none; border-color:var(--blue); box-shadow:0 0 0 3px rgba(31,111,235,0.14);
}
.field textarea{ resize:vertical; min-height:128px; }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.captcha-row{ display:flex; align-items:flex-end; gap:16px; }
.captcha-q{
  font-family:"Fraunces",serif; font-size:var(--t-lg); font-weight:600;
  background:var(--blue-tint); color:var(--blue-deep);
  padding:10px 18px; border-radius:11px; white-space:nowrap;
}
.captcha-row .field{ flex:1; margin-bottom:0; }
.honeypot{ position:absolute; left:-9999px; opacity:0; height:0; width:0; }

.alert{ padding:15px 18px; border-radius:11px; margin-bottom:22px; font-size:var(--t-sm); }
.alert-ok{ background:#e2f5ec; border:1px solid #9bd9b8; color:#1c6b41; }
.alert-err{ background:#fdeaea; border:1px solid #f0b4b4; color:#a32626; }
.alert ul{ margin:.4em 0 0; padding-left:1.2em; }

/* ---------- footer ---------- */
.site-footer{
  background:linear-gradient(180deg, var(--foot), var(--foot-2));
  color:var(--foot-ink); margin-top:48px; padding:52px 0 28px;
}
.footer-grid{ display:grid; grid-template-columns:1.6fr 1fr 1.2fr; gap:40px; }
.footer-col h4{ font-size:var(--t-xs); text-transform:uppercase; letter-spacing:.12em; color:var(--foot-dim); margin-bottom:15px; font-family:"Public Sans",sans-serif; font-weight:700; }
.footer-col a{ display:block; color:var(--foot-ink); margin-bottom:9px; font-size:var(--t-sm); }
.footer-col a:hover{ color:var(--amber-soft); }
.footer-brand p{ color:var(--foot-ink); max-width:38ch; font-size:var(--t-sm); }
.footer-contact{ color:var(--foot-ink); font-size:var(--t-sm); line-height:1.8; }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; gap:16px;
  margin-top:38px; padding-top:22px; border-top:1px solid rgba(255,255,255,0.1);
  color:var(--foot-dim); font-size:var(--t-xs); flex-wrap:wrap;
}

/* ---------- scroll reveal ---------- */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }

/* ---------- responsive ---------- */
@media (max-width:920px){
  .split, .contact-grid{ grid-template-columns:1fr; gap:32px; }
  .cols-3{ grid-template-columns:1fr 1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:720px){
  .nav-toggle{ display:flex; }
  .site-nav{
    position:fixed; inset:88px 0 auto 0; flex-direction:column; align-items:stretch;
    gap:4px; padding:16px 6vw 24px; background:rgba(236,239,245,0.98);
    border-bottom:1px solid var(--line); transform:translateY(-130%); transition:transform .3s;
  }
  body.nav-open .site-nav{ transform:none; }
  .site-nav a{ padding:14px 16px; }
  .header-inner{ height:74px; }
  .brand-logo{ height:44px; }
  .hero-stats{ grid-template-columns:1fr; gap:14px; }
  .cols-3, .cols-2, .footer-grid{ grid-template-columns:1fr; }
  .field-row{ grid-template-columns:1fr; }
  .cat{ grid-template-columns:1fr; }
  .cta-banner{ padding:34px 24px; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
}