/* Klowatt — design system v1 (dark energy) */
:root{
  --bg:#0a0d0b;
  --bg2:#0e1210;
  --card:#121714;
  --card2:#161c18;
  --line:rgba(200,255,46,.14);
  --line-soft:rgba(255,255,255,.08);
  --volt:#c8ff2e;
  --volt-deep:#9fd41a;
  --text:#f4f7f2;
  --muted:#a3ada6;
  --muted2:#7d877e;
  --radius:18px;
  --font-d:"Space Grotesk",system-ui,sans-serif;
  --font-b:"Inter",system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-b);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--volt);color:#0a0d0b}
a{color:inherit}
img{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(10,13,11,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.header-in{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{font-family:var(--font-d);font-weight:700;font-size:1.5rem;letter-spacing:-.02em;text-decoration:none}
.logo .volt-dot{color:var(--volt)}
.nav{display:flex;gap:28px;align-items:center}
.nav a{text-decoration:none;color:var(--muted);font-weight:500;font-size:.95rem;transition:color .2s}
.nav a:hover,.nav a.active{color:var(--text)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--font-d);font-weight:700;text-decoration:none;
  border-radius:999px;padding:14px 30px;font-size:1rem;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
  cursor:pointer;border:none;
}
.btn-volt{background:var(--volt);color:#0a0d0b;box-shadow:0 8px 30px rgba(200,255,46,.25)}
.btn-volt:hover{transform:translateY(-2px);box-shadow:0 12px 38px rgba(200,255,46,.35)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line-soft)}
.btn-ghost:hover{border-color:var(--volt);color:var(--volt)}
.btn-sm{padding:10px 22px;font-size:.9rem}
.burger{display:none;background:none;border:none;color:var(--text);font-size:1.6rem;cursor:pointer}

/* ---------- hero ---------- */
.hero{
  position:relative;padding:110px 0 90px;overflow:hidden;
  background:
    radial-gradient(900px 480px at 85% -10%,rgba(200,255,46,.09),transparent 60%),
    radial-gradient(700px 420px at 8% 110%,rgba(200,255,46,.06),transparent 60%),
    var(--bg);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(800px 500px at 50% 0%,#000 30%,transparent 75%);
}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--volt);border:1px solid var(--line);border-radius:999px;
  padding:8px 18px;margin-bottom:26px;background:rgba(200,255,46,.06);
}
.kicker .pulse{width:8px;height:8px;border-radius:50%;background:var(--volt);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{
  font-family:var(--font-d);font-weight:700;letter-spacing:-.03em;
  font-size:clamp(2.4rem,5.4vw,4.2rem);line-height:1.06;margin-bottom:22px;max-width:16ch;
}
.hero h1 .hl{color:var(--volt)}
.hero p.lead{font-size:1.18rem;color:var(--muted);max-width:34rem;margin-bottom:36px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}
.hero-meta{display:flex;gap:26px;margin-top:44px;flex-wrap:wrap}
.hero-meta div{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:.92rem}
.hero-meta svg{flex:none}

/* ---------- marquee ---------- */
.marquee{border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);background:var(--bg2);overflow:hidden;padding:16px 0}
.marquee-track{display:flex;gap:56px;width:max-content;animation:scroll 26s linear infinite;font-family:var(--font-d);font-weight:600;letter-spacing:.06em;text-transform:uppercase;font-size:.85rem;color:var(--muted)}
.marquee-track span{display:flex;align-items:center;gap:56px}
.marquee-track b{color:var(--volt);font-weight:400}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section.alt{background:var(--bg2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--volt);margin-bottom:14px}
h2.sec-title{font-family:var(--font-d);font-size:clamp(1.7rem,3.4vw,2.6rem);letter-spacing:-.02em;line-height:1.15;margin-bottom:16px}
.sec-sub{color:var(--muted);max-width:44rem;margin-bottom:48px;font-size:1.06rem}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  background:var(--card);border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:34px 30px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:0 18px 44px rgba(0,0,0,.4)}
.card .icon{
  width:52px;height:52px;border-radius:14px;background:rgba(200,255,46,.1);
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;margin-bottom:20px;
}
.card h3{font-family:var(--font-d);font-size:1.3rem;margin-bottom:10px;letter-spacing:-.01em}
.card p{color:var(--muted);font-size:.97rem;margin-bottom:22px;flex:1}
.card .link{color:var(--volt);font-weight:700;text-decoration:none;font-size:.95rem}
.card .link:hover{text-decoration:underline}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
.step{background:var(--card);border:1px solid var(--line-soft);border-radius:var(--radius);padding:34px 30px;position:relative}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-family:var(--font-d);font-weight:700;font-size:2.6rem;color:var(--volt);opacity:.9;
  display:block;margin-bottom:14px;
}
.step h3{font-family:var(--font-d);font-size:1.25rem;margin-bottom:10px}
.step p{color:var(--muted);font-size:.96rem}

/* pricing / model */
.model-box{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:44px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.model-box h3{font-family:var(--font-d);font-size:1.5rem;margin-bottom:12px}
.model-box p{color:var(--muted)}
.model-list{list-style:none;display:flex;flex-direction:column;gap:14px}
.model-list li{display:flex;gap:12px;align-items:flex-start;color:var(--text);font-size:.98rem}
.model-list li::before{content:"✓";color:var(--volt);font-weight:700;flex:none}

/* faq */
.faq{max-width:820px}
.faq details{background:var(--card);border:1px solid var(--line-soft);border-radius:14px;margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;padding:20px 24px;font-weight:600;font-family:var(--font-d);font-size:1.02rem;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--volt);font-size:1.5rem;font-weight:400;flex:none;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .faq-body{padding:0 24px 22px;color:var(--muted);font-size:.97rem}

/* cta band */
.cta-band{
  background:linear-gradient(135deg,rgba(200,255,46,.12),rgba(200,255,46,.03));
  border:1px solid var(--line);border-radius:26px;padding:64px 48px;text-align:center;position:relative;overflow:hidden;
}
.cta-band h2{font-family:var(--font-d);font-size:clamp(1.8rem,3.6vw,2.8rem);letter-spacing:-.02em;margin-bottom:14px}
.cta-band h2 .hl{color:var(--volt)}
.cta-band p{color:var(--muted);max-width:36rem;margin:0 auto 32px}

/* cities */
.city-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.city-grid a{
  text-decoration:none;background:var(--card);border:1px solid var(--line-soft);
  border-radius:12px;padding:16px 20px;font-weight:600;font-size:.95rem;
  display:flex;justify-content:space-between;align-items:center;transition:border-color .2s,transform .2s;
}
.city-grid a:hover{border-color:var(--volt);transform:translateY(-2px)}
.city-grid a span:last-child{color:var(--volt)}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line-soft);background:#070908;padding:64px 0 32px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:48px}
.foot-grid h4{font-family:var(--font-d);font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted2);margin-bottom:16px}
.foot-grid a{display:block;color:var(--muted);text-decoration:none;font-size:.94rem;margin-bottom:10px}
.foot-grid a:hover{color:var(--volt)}
.foot-brand p{color:var(--muted2);font-size:.92rem;max-width:22rem;margin-top:12px}
.foot-bottom{border-top:1px solid var(--line-soft);padding-top:24px;display:flex;justify-content:space-between;color:var(--muted2);font-size:.85rem;flex-wrap:wrap;gap:12px}

/* ---------- forms ---------- */
.form-card{background:var(--card);border:1px solid var(--line-soft);border-radius:22px;padding:44px;max-width:680px}
.field{margin-bottom:20px}
.field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:8px}
.field input,.field textarea,.field select{
  width:100%;background:var(--bg2);border:1px solid var(--line-soft);border-radius:12px;
  padding:14px 16px;color:var(--text);font-family:var(--font-b);font-size:1rem;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--volt)}
.field textarea{min-height:140px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* breadcrumb */
.crumb{font-size:.85rem;color:var(--muted2);margin-bottom:18px}
.crumb a{color:var(--muted);text-decoration:none}
.crumb a:hover{color:var(--volt)}

/* page hero */
.page-hero{padding:80px 0 60px;background:radial-gradient(700px 380px at 80% 0%,rgba(200,255,46,.08),transparent 60%),var(--bg)}
.page-hero h1{font-family:var(--font-d);font-size:clamp(2rem,4.4vw,3.2rem);letter-spacing:-.02em;line-height:1.1;margin-bottom:18px;max-width:20ch}
.page-hero h1 .hl{color:var(--volt)}
.page-hero .lead{color:var(--muted);font-size:1.12rem;max-width:38rem;margin-bottom:30px}

.check-list{list-style:none;display:flex;flex-direction:column;gap:12px;margin:24px 0}
.check-list li{display:flex;gap:12px;color:var(--muted)}
.check-list li::before{content:"✓";color:var(--volt);font-weight:700;flex:none}

.prose h2{font-family:var(--font-d);font-size:1.5rem;margin:36px 0 14px;letter-spacing:-.01em}
.prose p{color:var(--muted);margin-bottom:16px}
.prose ul{color:var(--muted);margin:0 0 16px 20px}

@media(max-width:900px){
  .grid3,.steps{grid-template-columns:1fr}
  .grid2,.model-box{grid-template-columns:1fr}
  .city-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--bg2);flex-direction:column;padding:20px;gap:18px;border-bottom:1px solid var(--line-soft)}
  .nav.open{display:flex}
  .burger{display:block}
  .section{padding:64px 0}
  .hero{padding:80px 0 64px}
  .form-row{grid-template-columns:1fr}
  .cta-band{padding:44px 28px}
}
@media(max-width:560px){.city-grid{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr}}