:root {
  --black: #000;
  --base: #020402;
  --surface: #050705;
  --surface-2: #0b100b;
  --charcoal: #111611;
  --line: rgba(244, 255, 240, .18);
  --line-strong: rgba(186, 255, 0, .42);
  --lime: #baff00;
  --lime-2: #d4ff4a;
  --moss: #102812;
  --text: #f4fff0;
  --muted: #aab5a5;
  --dim: #6e796a;
  --amber: #ffb43d;
  --max: 1180px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--black); }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(circle at 80% 10%, rgba(186,255,0,.09), transparent 34rem),
    linear-gradient(180deg, #000 0%, #020402 42%, #000 100%);
  color: var(--text);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-160%);
  background: var(--lime);
  color: #000;
  padding: 10px 14px;
  font-weight: 800;
}
.skip-link:focus { transform: translateY(0); }

.wrap {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.section-pad { padding: clamp(64px, 8vw, 112px) 0; position: relative; }
.section-pad + .section-pad { border-top: 1px solid rgba(244,255,240,.08); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  min-height: 74px;
  display: grid;
  grid-template-columns: minmax(120px, 1fr) auto minmax(220px, 1fr);
  align-items: center;
  gap: 22px;
  padding: 10px max(20px, calc((100vw - var(--max)) / 2));
  background: rgba(0,0,0,.86);
  border-bottom: 1px solid rgba(186,255,0,.2);
  backdrop-filter: blur(16px);
}

.brand-lockup img { width: 132px; height: auto; }
.main-nav {
  display: flex;
  gap: 22px;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}
.main-nav a { transition: color .18s var(--ease); }
.main-nav a:hover { color: var(--lime); }
.header-actions { display: flex; gap: 10px; justify-content: end; }

.btn {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  padding: 0 18px;
  color: var(--text);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .04em;
  text-transform: uppercase;
  transition: transform .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}
.btn-primary {
  background: var(--lime);
  border-color: var(--lime);
  color: #000;
}
.btn-primary:hover { background: var(--lime-2); border-color: var(--lime-2); }
.btn-outline {
  color: var(--lime);
  border-color: rgba(186,255,0,.7);
  background: rgba(186,255,0,.04);
}
.btn-outline:hover, .btn-ghost:hover {
  background: rgba(186,255,0,.1);
  border-color: var(--lime);
  color: var(--lime);
}
.btn-large { min-height: 54px; padding: 0 24px; }

.hero {
  position: relative;
  min-height: min(800px, calc(100vh - 74px));
  overflow: hidden;
  display: grid;
  align-items: center;
  border-bottom: 1px solid rgba(186,255,0,.18);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0,0,0,.96) 0%, rgba(0,0,0,.78) 43%, rgba(0,0,0,.28) 100%),
    image-set(url("../img/hero-bg-1920.webp") type("image/webp"));
  background-size: cover;
  background-position: center;
  opacity: .92;
}
.pattern-layer {
  position: absolute;
  inset: -15%;
  background-image: url("../img/koka-pattern.svg");
  background-size: 360px 180px;
  opacity: .42;
  transform: rotate(-1deg);
  mix-blend-mode: screen;
}
.scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, rgba(255,255,255,.045) 0 1px, transparent 1px 9px);
  opacity: .18;
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(320px, .82fr);
  align-items: center;
  gap: clamp(28px, 5vw, 64px);
  padding: clamp(52px, 7vw, 82px) 0 clamp(44px, 6vw, 72px);
}
.hero-copy { max-width: 620px; }
.eyebrow {
  margin: 0 0 16px;
  color: var(--lime);
  font-size: 11px;
  font-weight: 950;
  letter-spacing: .11em;
  line-height: 1.2;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 680px;
  margin-bottom: 22px;
  font-size: clamp(40px, 4.35vw, 64px);
  line-height: 1.02;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--text);
  text-shadow: 0 2px 28px rgba(0,0,0,.9);
}
h1 span:first-child { color: var(--lime); display: block; text-shadow: 0 0 28px rgba(186,255,0,.32), 0 2px 24px rgba(0,0,0,.95); }
.h1-sub { display: block; }
.mobile-break { display: none; }
h2 {
  margin-bottom: 20px;
  font-size: clamp(28px, 3.35vw, 48px);
  line-height: 1.04;
  letter-spacing: 0;
}
h3 {
  margin-bottom: 10px;
  font-size: clamp(20px, 1.65vw, 26px);
  line-height: 1.08;
}
.hero-lead, .section-copy p, .heat-copy p, .b2b-copy p, .safety-box p, .final-box p {
  color: var(--muted);
  font-size: clamp(16px, 1.12vw, 19px);
  line-height: 1.55;
}
.hero-lead { max-width: 58ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0; }
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 500px;
  margin: 28px 0 0;
  border: 1px solid var(--line);
  border-right: 0;
}
.hero-metrics div {
  padding: 14px;
  border-right: 1px solid var(--line);
  background: rgba(0,0,0,.38);
}
.hero-metrics dt {
  color: var(--dim);
  font-size: 10px;
  font-weight: 900;
  text-transform: uppercase;
}
.hero-metrics dd {
  margin: 4px 0 0;
  color: var(--text);
  font-size: clamp(18px, 1.55vw, 23px);
  font-weight: 950;
}

.hero-product {
  position: relative;
  min-height: clamp(420px, 48vw, 610px);
  display: grid;
  place-items: center;
}
.hero-product > img {
  position: relative;
  z-index: 2;
  width: min(100%, 440px);
  object-fit: contain;
  filter: drop-shadow(0 34px 54px rgba(0,0,0,.86)) drop-shadow(0 0 32px rgba(186,255,0,.16));
}
.product-orbit {
  position: absolute;
  width: min(82vw, 520px);
  aspect-ratio: 1;
  border: 1px solid rgba(186,255,0,.22);
  box-shadow: inset 0 0 70px rgba(186,255,0,.08), 0 0 80px rgba(18,35,19,.7);
  transform: rotate(8deg);
}
.product-orbit::before,
.product-orbit::after {
  content: "";
  position: absolute;
  inset: 34px;
  border: 1px solid rgba(244,255,240,.12);
}
.product-orbit::after { inset: 78px; border-color: rgba(186,255,0,.16); transform: rotate(-18deg); }
.hero-stamp {
  position: absolute;
  right: clamp(0px, 2vw, 24px);
  bottom: clamp(36px, 7vw, 70px);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: #000;
  border: 1px solid var(--line-strong);
  color: var(--lime);
  font-size: 10px;
  font-weight: 950;
  line-height: 1;
  text-transform: uppercase;
}

.split-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(320px, 1fr);
  gap: clamp(32px, 7vw, 100px);
  align-items: center;
}
.section-copy { max-width: 680px; }
.brand-proof.section-pad { padding-top: clamp(52px, 6vw, 88px); }
.brand-proof .split-grid { align-items: start; }

.blueprint-panel {
  position: relative;
  min-height: 430px;
  padding: 34px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(186,255,0,.08), transparent 36%),
    #030503;
  overflow: hidden;
}
.blueprint-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("../img/koka-pattern.svg");
  background-size: 280px 140px;
  opacity: .5;
}
.blueprint-panel::after {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid rgba(244,255,240,.25);
}
.blueprint-mark,
.blueprint-list {
  position: relative;
  z-index: 1;
}
.blueprint-mark {
  width: 130px;
  padding: 12px;
  border: 1px solid rgba(186,255,0,.55);
  background: #000;
}
.blueprint-list {
  list-style: none;
  margin: 120px 0 0;
  padding: 0;
}
.blueprint-list li {
  padding: 14px 0;
  border-top: 1px solid rgba(244,255,240,.18);
  color: var(--text);
  font-weight: 750;
}

.section-heading {
  max-width: 720px;
  margin-bottom: clamp(28px, 5vw, 56px);
}
.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.spec-tile {
  min-height: 260px;
  padding: 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(186,255,0,.045), rgba(0,0,0,0));
}
.spec-tile span {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 56px;
  background: var(--lime);
  color: #000;
  font-size: 11px;
  font-weight: 950;
}
.spec-tile p, .variant-copy p, .setup-steps, .compare-table, .faq-list p, .form-note {
  color: var(--muted);
  line-height: 1.55;
}

.heat { background: linear-gradient(180deg, #000, #030703); }
.heat-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(300px, .68fr);
  gap: clamp(32px, 7vw, 96px);
  align-items: center;
}
.heat-flow {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  max-width: 620px;
  margin-top: 36px;
  background: var(--line);
  border: 1px solid var(--line);
}
.heat-flow div {
  min-height: 92px;
  padding: 20px;
  background: #020402;
  font-weight: 850;
}
.heat-flow span {
  display: block;
  margin-bottom: 14px;
  color: var(--lime);
  font-size: 12px;
}
.heat-visual {
  border: 1px solid var(--line);
  background: radial-gradient(circle at center, rgba(186,255,0,.13), transparent 58%), #020402;
  display: grid;
  place-items: center;
  min-height: clamp(300px, 36vw, 460px);
  padding: clamp(18px, 4vw, 44px);
}
.heat-visual img {
  width: auto;
  max-width: min(100%, 390px);
  max-height: 420px;
  object-fit: contain;
  filter: drop-shadow(0 28px 42px rgba(0,0,0,.74));
}

.variant-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.variant-panel {
  display: grid;
  grid-template-rows: auto 1fr;
  border: 1px solid var(--line);
  background: #030403;
}
.variant-panel.variant-wide {
  grid-column: span 1;
}
.variant-image {
  display: grid;
  place-items: center;
  min-height: clamp(260px, 26vw, 340px);
  aspect-ratio: 1.08 / 1;
  padding: clamp(18px, 2.4vw, 30px);
  background: radial-gradient(circle at center, rgba(186,255,0,.10), transparent 62%);
  border-bottom: 1px solid var(--line);
}
.variant-image img {
  width: auto;
  max-width: 100%;
  max-height: min(100%, 292px);
  object-fit: contain;
  filter: drop-shadow(0 24px 42px rgba(0,0,0,.74));
}
.variant-wide .variant-image img {
  max-height: min(100%, 230px);
}
.variant-copy { padding: 26px; }

.setup-steps {
  counter-reset: item;
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line-strong);
}
.setup-steps li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  padding: 18px 0 18px 24px;
  border-bottom: 1px solid rgba(244,255,240,.12);
}
.setup-steps span {
  color: var(--lime);
  font-weight: 950;
}

.compare { background: #020402; }
.compare-grid {
  display: grid;
  grid-template-columns: minmax(0, .62fr) minmax(420px, 1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}
.compare-table {
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.compare-table > div {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 128px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.compare-table strong, .compare-table span {
  padding: 24px;
}
.compare-table strong {
  color: var(--lime);
  border-right: 1px solid var(--line);
  text-transform: uppercase;
}

.b2b {
  background:
    linear-gradient(90deg, rgba(186,255,0,.08), transparent 42%),
    #050705;
}
.b2b-grid {
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(340px, 520px);
  gap: clamp(34px, 7vw, 96px);
  align-items: start;
}
.check-list, .safety-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}
.check-list li, .safety-list li {
  position: relative;
  padding: 12px 0 12px 22px;
  border-bottom: 1px solid rgba(244,255,240,.1);
  color: var(--text);
}
.check-list li::before, .safety-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 6px;
  height: 6px;
  background: var(--lime);
}
.lead-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 24px;
  border: 1px solid var(--line-strong);
  background: rgba(0,0,0,.48);
}
.lead-form label {
  display: grid;
  gap: 8px;
  color: var(--text);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.lead-form .full, .lead-form button, .lead-form .form-note { grid-column: 1 / -1; }
.lead-form input, .lead-form select, .lead-form textarea {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(244,255,240,.16);
  background: #030503;
  color: var(--text);
  padding: 12px 14px;
  border-radius: 0;
}
.lead-form textarea { resize: vertical; }
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}
.form-note { margin: 0; font-size: 12px; }

.safety-box {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: clamp(24px, 6vw, 76px);
  padding: clamp(24px, 5vw, 58px);
  border: 1px solid rgba(255,180,61,.42);
  background: linear-gradient(135deg, rgba(255,180,61,.08), transparent 42%), #070807;
}
.safety-label {
  display: grid;
  place-items: center;
  width: 140px;
  height: 140px;
  border: 1px solid var(--amber);
  color: var(--amber);
  font-size: 58px;
  font-weight: 950;
}
.safety-list li::before { background: var(--amber); }

.faq-wrap { max-width: 980px; }
.faq-list {
  border-top: 1px solid var(--line);
}
.faq-list details {
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.015);
}
.faq-list summary {
  cursor: pointer;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 0;
  color: var(--text);
  font-weight: 850;
  font-size: 19px;
}
.faq-list summary::after {
  content: "+";
  color: var(--lime);
  font-size: 26px;
}
.faq-list details[open] summary::after { content: "-"; }
.faq-list p {
  max-width: 760px;
  margin-bottom: 24px;
}

.final-cta { border-top: 1px solid rgba(186,255,0,.2); }
.final-box {
  display: grid;
  justify-items: center;
  text-align: center;
  max-width: 880px;
  padding: clamp(28px, 6vw, 68px);
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(135deg, rgba(186,255,0,.10), transparent 38%),
    #020402;
}
.final-box h2 { max-width: 740px; }
.final-box p { max-width: 680px; }

.site-footer {
  padding: 28px 0;
  border-top: 1px solid rgba(244,255,240,.1);
  color: var(--dim);
  font-size: 13px;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}
.site-footer nav { display: flex; gap: 18px; }
.site-footer a:hover { color: var(--lime); }

.reveal {
  opacity: 1;
  transform: none;
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 960px) {
  .site-header {
    grid-template-columns: 1fr auto;
    min-height: 66px;
  }
  .main-nav { display: none; }
  .header-actions .btn-ghost { display: none; }
  .hero-grid, .split-grid, .heat-grid, .compare-grid, .b2b-grid, .safety-box {
    grid-template-columns: 1fr;
  }
  .hero {
    min-height: auto;
  }
  .hero-grid {
    padding-top: 46px;
    gap: 20px;
  }
  .hero-product {
    min-height: 330px;
    padding: 12px 0 8px;
  }
  .hero-product > img {
    width: min(58vw, 300px);
  }
  .product-orbit {
    width: min(66vw, 330px);
  }
  .hero-stamp {
    right: 0;
    bottom: 22px;
  }
  .spec-grid, .variant-grid {
    grid-template-columns: 1fr;
  }
  .spec-tile { min-height: 210px; }
  .spec-tile span { margin-bottom: 34px; }
  .compare-table > div {
    grid-template-columns: 1fr;
  }
  .compare-table strong { border-right: 0; border-bottom: 1px solid var(--line); }
}

@media (max-width: 620px) {
  .wrap { width: min(calc(100% - 28px), var(--max)); }
  .brand-lockup img { width: 106px; }
  .btn { padding: 0 13px; font-size: 11px; }
  h1 {
    max-width: 100%;
    font-size: clamp(32px, 9.9vw, 39px);
    line-height: 1.05;
  }
  .mobile-break { display: block; }
  h2 {
    font-size: clamp(26px, 7.8vw, 34px);
    line-height: 1.08;
  }
  h3 { font-size: clamp(19px, 5.6vw, 23px); }
  .hero-lead { max-width: 31ch; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-bottom: 1px solid var(--line);
    margin-top: 22px;
  }
  .hero-metrics div {
    min-width: 0;
    padding: 12px 10px;
    border-bottom: 0;
  }
  .hero-metrics dt { font-size: 9px; }
  .hero-metrics dd {
    font-size: clamp(13px, 4.1vw, 16px);
    line-height: 1.12;
    overflow-wrap: anywhere;
  }
  .hero-product {
    min-height: 300px;
    margin-top: 4px;
  }
  .hero-product > img {
    width: min(68vw, 250px);
  }
  .product-orbit { width: min(72vw, 286px); }
  .hero-stamp { display: none; }
  .hero-bg {
    background:
      linear-gradient(180deg, rgba(0,0,0,.72) 0%, rgba(0,0,0,.92) 48%, #000 100%),
      image-set(url("../img/hero-bg-mobile.webp") type("image/webp"));
    background-size: cover;
  }
  .lead-form { grid-template-columns: 1fr; padding: 18px; }
  .heat-flow { grid-template-columns: 1fr; }
  .heat-visual { min-height: 300px; }
  .heat-visual img { max-height: 280px; }
  .variant-image {
    min-height: 260px;
    aspect-ratio: 1.2 / 1;
  }
  .variant-image img { max-height: 220px; }
  .safety-label { width: 104px; height: 104px; font-size: 42px; }
  .footer-grid { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}