/* ===================================================================
   NöronTek — design system v3
   Modern, purple-led monochrome. Soft shadows, thin borders, no motion-fx.
   Display: Space Grotesk / Body: Manrope / Mono: JetBrains Mono
=================================================================== */

:root {
  --ink: #0f0a1f;
  --ink-soft: #625b78;
  --ink-faint: #948da8;
  --paper: #fdfcfe;
  --paper-2: #f6f2fb;
  --white: #ffffff;
  --border: #e8e2f1;
  --border-dark: rgba(255, 255, 255, 0.1);

  --violet-950: #170b30;
  --violet-900: #1f0f3f;
  --violet-800: #2c1657;
  --violet-700: #4c1d95;
  --violet-600: #6d28d9;
  --violet-500: #7c3aed;
  --violet-400: #9161ea;
  --violet-300: #b794f6;
  --violet-100: #ede4fc;
  --violet-50: #f5eefd;

  --white-soft: rgba(255, 255, 255, 0.68);
  --white-faint: rgba(255, 255, 255, 0.4);

  --whatsapp: #22c55e;

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --container: 1200px;
  --radius-s: 12px;
  --radius-m: 18px;
  --radius-full: 999px;

  --shadow-sm: 0 1px 2px rgba(15, 10, 31, 0.05), 0 1px 1px rgba(15, 10, 31, 0.04);
  --shadow-md: 0 12px 30px -14px rgba(15, 10, 31, 0.22);
  --shadow-lg: 0 24px 60px -20px rgba(15, 10, 31, 0.32);
  --shadow-violet: 0 16px 40px -16px rgba(109, 40, 217, 0.45);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img, svg, picture, video, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; letter-spacing: -0.015em; }
::selection { background: var(--violet-600); color: #fff; }

:focus-visible { outline: 2px solid var(--violet-500); outline-offset: 3px; border-radius: 4px; }

.skip {
  position: absolute; left: 12px; top: -60px; z-index: 999;
  background: var(--violet-600); color: #fff; padding: 10px 18px; border-radius: var(--radius-s);
  font-weight: 700; transition: top 0.25s var(--ease);
}
.skip:focus { top: 12px; }

.container { max-width: var(--container); margin-inline: auto; padding-inline: 24px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--violet-600); margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--violet-600); }
.s-dark .eyebrow, .hero .eyebrow { color: var(--violet-300); }
.s-dark .eyebrow::before, .hero .eyebrow::before { background: var(--violet-300); }

.accent { color: var(--violet-600); }
.s-dark .accent, .hero .accent { color: var(--violet-300); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 26px; border-radius: var(--radius-full); border: 1px solid transparent;
  font-weight: 700; font-size: 0.95rem; white-space: nowrap;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease), border-color .25s var(--ease);
}
.btn svg { transition: transform 0.3s var(--ease); flex-shrink: 0; }
.btn:hover { transform: translateY(-2px); }
.btn:hover svg { transform: translateX(3px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--violet-600); color: #fff; box-shadow: var(--shadow-violet); }
.btn-primary:hover { background: var(--violet-500); box-shadow: 0 20px 46px -16px rgba(109, 40, 217, 0.6); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.06); color: #fff; border-color: var(--border-dark);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.24); }

.btn-outline {
  background: var(--white); color: var(--ink); border-color: var(--border);
}
.btn-outline:hover { border-color: var(--violet-400); color: var(--violet-600); }

.btn-wa { background: var(--whatsapp); color: #fff; box-shadow: 0 14px 32px -14px rgba(34, 197, 94, 0.55); }
.btn-wa:hover { background: #1fb655; }

.btn-line { background: var(--paper-2); color: var(--ink); }
.btn-line:hover { background: var(--border); }

.btn-sm { padding: 10px 18px; font-size: 0.82rem; box-shadow: none; }

/* ---------- Top announcement bar ---------- */
.topbar {
  background: var(--violet-950); color: #fff; text-align: center; font-family: var(--font-mono);
  font-size: 0.78rem; font-weight: 500; letter-spacing: 0.01em;
  padding: 10px 16px; position: relative; z-index: 60;
}
.topbar strong { font-weight: 700; color: var(--violet-300); }
.topbar a { text-decoration: underline; text-underline-offset: 3px; font-weight: 700; white-space: nowrap; color: #fff; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50; padding: 18px 0;
  background: var(--ink);
  transition: padding 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.nav.scrolled { padding: 12px 0; box-shadow: var(--shadow-lg); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.mark { display: flex; align-items: center; gap: 12px; }
.mark img.logo { width: 46px; height: 46px; object-fit: contain; }
.mark .name { font-family: var(--font-display); font-weight: 700; font-size: 1.4rem; letter-spacing: 0.01em; color: #fff; }
.mark .tek { color: var(--violet-300); }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  position: relative; display: block; padding: 9px 15px; border-radius: var(--radius-full);
  font-size: 0.9rem; font-weight: 600; color: var(--white-soft);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.nav-links a:hover { color: #fff; background: rgba(255, 255, 255, 0.06); }
.nav-links a.active { color: #fff; background: var(--violet-700); }

.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-toggle {
  display: none; flex-direction: column; align-items: center; justify-content: center;
  gap: 5px; width: 42px; height: 42px; border-radius: 10px; flex-shrink: 0;
  color: #fff;
}
.nav-toggle .bar { width: 20px; height: 2px; background: currentColor; border-radius: 2px; transition: transform 0.3s var(--ease), opacity 0.3s var(--ease); }
.nav-toggle[aria-expanded="true"] .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; background: var(--ink);
  padding: 118px 0 130px; text-align: center;
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0.6;
  background-image: radial-gradient(rgba(183, 148, 246, 0.28) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(60% 60% at 50% 30%, #000 0%, transparent 100%);
}
.hero-inner { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; }

.hero h1 {
  font-size: clamp(2.6rem, 3.2vw + 1.8rem, 4.6rem); color: #fff; margin: 0 auto 24px; max-width: 20ch;
}
.hero .lead {
  font-size: clamp(1.05rem, 0.4vw + 0.95rem, 1.25rem); color: var(--white-soft); max-width: 64ch;
  margin: 0 auto 38px;
}
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-bottom: 34px; }

/* ---------- Stats strip ---------- */
.stats { background: var(--violet-950); padding: 44px 0; }
.strip-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat { text-align: center; padding: 8px 12px; border-left: 1px solid var(--border-dark); }
.stat:first-child { border-left: 0; }
.stat .num { font-family: var(--font-display); font-size: clamp(1.4rem, 1.4vw + 1rem, 2rem); font-weight: 600; color: #fff; }
.stat .num span { color: var(--violet-300); }
.stat .lbl { color: var(--white-soft); font-size: 0.83rem; margin-top: 6px; }

/* ---------- Sections ---------- */
.block { padding: 108px 0; position: relative; }
.s-light { background: var(--paper); color: var(--ink); }
.s-light-2 { background: var(--paper-2); color: var(--ink); }
.s-dark { background: var(--ink); color: #fff; }

.sec-head { max-width: 620px; margin-bottom: 56px; }
.sec-head.center { margin-inline: auto; text-align: center; }
.sec-head h2 { font-size: clamp(1.85rem, 2.4vw + 1rem, 2.7rem); margin-bottom: 16px; }
.s-light .sec-head h2, .s-light-2 .sec-head h2 { color: var(--ink); }
.s-dark .sec-head h2 { color: #fff; }
.sec-head p { color: var(--ink-soft); font-size: 1.03rem; }
.s-dark .sec-head p { color: var(--white-soft); }

/* ---------- Process (connected timeline) ---------- */
.timeline { position: relative; display: flex; gap: 16px; margin-bottom: 8px; }
.timeline::before { content: ""; position: absolute; top: 40px; left: 12.5%; right: 12.5%; height: 2px; background: var(--border); z-index: 0; }
.timeline-step { position: relative; z-index: 1; flex: 1; display: flex; flex-direction: column; align-items: center; text-align: center; }
.timeline-badge {
  width: 64px; height: 64px; border-radius: 50%; background: var(--violet-600); color: #fff;
  display: grid; place-items: center; margin-bottom: 22px; box-shadow: var(--shadow-violet);
}
.timeline-badge svg { width: 26px; height: 26px; }
.timeline-step .step-label {
  font-family: var(--font-mono); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--violet-500); margin-bottom: 8px;
}
.timeline-step h3 { font-size: 1.05rem; color: var(--ink); margin-bottom: 8px; }
.timeline-step p { font-size: 0.88rem; color: var(--ink-soft); max-width: 24ch; }

/* ---------- Products (spotlight + secondary grid) ---------- */
.prod-spotlight {
  background: var(--violet-800); border-radius: var(--radius-m); padding: 44px 44px;
  display: grid; grid-template-columns: auto 1fr auto; gap: 36px; align-items: center;
  margin-bottom: 20px; box-shadow: var(--shadow-lg);
}
.prod-spotlight .node-icon {
  width: 64px; height: 64px; border-radius: 16px; background: rgba(255, 255, 255, 0.12);
  color: #fff; display: grid; place-items: center; flex-shrink: 0;
}
.prod-spotlight .node-icon svg { width: 28px; height: 28px; }
.prod-spotlight .tag {
  display: inline-block; font-family: var(--font-mono); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase; padding: 5px 11px; border-radius: var(--radius-full); background: rgba(255, 255, 255, 0.14);
  color: #fff; margin-bottom: 14px;
}
.prod-spotlight h3 { font-size: 1.55rem; color: #fff; margin-bottom: 10px; }
.prod-spotlight .desc { color: var(--white-soft); font-size: 0.98rem; max-width: 52ch; margin-bottom: 18px; }
.prod-spotlight .feature-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.prod-spotlight .feature-tags span {
  font-family: var(--font-mono); font-size: 0.76rem; color: #fff; background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-dark); padding: 5px 12px; border-radius: var(--radius-full);
}
.prod-spotlight .btn-white { background: #fff; color: var(--violet-700); box-shadow: var(--shadow-sm); }
.prod-spotlight .btn-white:hover { background: var(--violet-50); }

.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.prod-card {
  position: relative; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-m);
  padding: 26px 24px; display: flex; flex-direction: column;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.prod-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--violet-100); }
.prod-card-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 18px; }
.prod-card .node-icon {
  width: 44px; height: 44px; border-radius: 12px; background: var(--violet-100);
  color: var(--violet-600); display: grid; place-items: center; flex-shrink: 0;
}
.prod-card .node-icon svg { width: 20px; height: 20px; }
.prod-card h3 { font-size: 1.05rem; margin-bottom: 8px; color: var(--ink); }
.prod-card .desc { font-size: 0.88rem; color: var(--ink-soft); flex: 1; margin-bottom: 20px; }
.prod-card .tag {
  font-family: var(--font-mono); font-size: 0.66rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 5px 10px; border-radius: var(--radius-full); white-space: nowrap; height: fit-content;
}
.prod-card .tag.live { background: var(--violet-100); color: var(--violet-700); }
.prod-card .tag.dev { background: var(--paper-2); color: var(--ink-soft); border: 1px solid var(--border); }
.prod-card-foot { display: flex; align-items: center; justify-content: space-between; padding-top: 16px; border-top: 1px solid var(--border); }
.prod-card-foot .price { font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600; color: var(--ink-faint); text-transform: uppercase; letter-spacing: 0.04em; }
.prod-card .card-link {
  display: inline-flex; align-items: center; gap: 6px; font-weight: 700; font-size: 0.85rem; color: var(--violet-600);
  transition: gap 0.25s var(--ease);
}
.prod-card .card-link:hover { gap: 10px; }

/* ---------- CTA banner ---------- */
.cta-banner {
  margin-top: 48px; background: var(--ink); color: #fff; border-radius: var(--radius-m);
  padding: 34px 38px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  box-shadow: var(--shadow-lg);
}
.cta-banner h3 { font-size: 1.25rem; margin-bottom: 6px; color: #fff; }
.cta-banner p { color: var(--white-soft); font-size: 0.95rem; }

/* ---------- About (bento) ---------- */
.about-bento {
  display: grid; grid-template-columns: 1.2fr 1fr 1fr; grid-auto-rows: 1fr; gap: 16px;
}
.about-panel {
  grid-column: 1; grid-row: 1 / 4; border-radius: var(--radius-m); background: var(--violet-800);
  box-shadow: var(--shadow-lg); display: flex; flex-direction: column;
}
.about-panel .inner { padding: 40px 34px; display: flex; flex-direction: column; height: 100%; }
.quote-mark { font-family: var(--font-display); font-size: 2.8rem; color: var(--violet-300); line-height: 0.6; margin-bottom: 18px; }
.about-panel h3 { color: #fff; font-size: 1.3rem; margin-bottom: 16px; }
.about-panel p { color: var(--white-soft); font-size: 0.95rem; }
.mini-stats { display: flex; gap: 32px; margin-top: 26px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, 0.16); }
.mini-stats .num { font-family: var(--font-display); font-size: 1.25rem; color: #fff; }
.mini-stats .lbl { font-size: 0.76rem; color: var(--white-soft); margin-top: 4px; }
.about-panel .btn { margin-top: auto; align-self: flex-start; }

.bento-cap {
  background: var(--ink); border: 1px solid var(--border-dark); border-radius: var(--radius-m);
  padding: 22px; transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.bento-cap:hover { border-color: var(--violet-400); transform: translateY(-3px); }
.bento-cap .ic {
  width: 38px; height: 38px; border-radius: 10px; background: rgba(183, 148, 246, 0.14);
  color: var(--violet-300); display: grid; place-items: center; margin-bottom: 14px;
}
.bento-cap .ic svg { width: 18px; height: 18px; }
.bento-cap h3 { font-size: 0.95rem; color: #fff; margin-bottom: 6px; }
.bento-cap p { font-size: 0.83rem; color: var(--white-soft); }

/* ---------- FAQ ---------- */
.faq { max-width: 780px; margin-inline: auto; display: flex; flex-direction: column; gap: 12px; }
.faq details {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-s);
  padding: 4px 24px; transition: box-shadow 0.25s var(--ease), border-color .25s var(--ease);
}
.faq details[open] { box-shadow: var(--shadow-md); border-color: var(--violet-100); }
.faq summary {
  list-style: none; cursor: pointer; padding: 19px 0; display: flex; align-items: center; justify-content: space-between;
  gap: 20px; font-weight: 700; font-size: 1rem; color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%; background: var(--violet-100);
  background-image: linear-gradient(currentColor, currentColor), linear-gradient(currentColor, currentColor);
  background-size: 11px 2px, 2px 11px; background-position: center; background-repeat: no-repeat;
  color: var(--violet-600); transition: transform 0.3s var(--ease);
}
.faq details[open] summary::after { transform: rotate(225deg); }
.faq details p { color: var(--ink-soft); padding-bottom: 20px; font-size: 0.95rem; max-width: 66ch; }

/* ---------- Contact ---------- */
.contact-card { border-radius: var(--radius-m); background: var(--ink); box-shadow: var(--shadow-lg); }
.contact-card .inner { padding: 56px; }
.contact-card .eyebrow { color: var(--violet-300); }
.contact-card .eyebrow::before { background: var(--violet-300); }
.contact-card h2 { color: #fff; font-size: clamp(1.85rem, 2.2vw + 1rem, 2.5rem); margin-bottom: 14px; }
.contact-card .accent { color: var(--violet-300); }
.contact-card .sub { color: var(--white-soft); max-width: 52ch; margin-bottom: 40px; font-size: 1.02rem; }

.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-bottom: 36px; }
.c-item {
  display: flex; align-items: center; gap: 14px; padding: 16px 18px; border-radius: var(--radius-s);
  background: rgba(255, 255, 255, 0.06); border: 1px solid var(--border-dark);
  transition: background 0.25s var(--ease);
}
.c-item:hover { background: rgba(255, 255, 255, 0.1); }
.c-item .ic {
  width: 40px; height: 40px; border-radius: 10px; background: rgba(255, 255, 255, 0.12); color: #fff;
  display: grid; place-items: center; flex-shrink: 0;
}
.c-item .ic svg { width: 19px; height: 19px; }
.c-item.wa .ic { background: var(--whatsapp); }
.c-item .meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.c-item .k { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--white-soft); font-family: var(--font-mono); }
.c-item .v { font-weight: 700; color: #fff; font-size: 0.95rem; overflow-wrap: anywhere; }

.contact-cta { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Footer ---------- */
.foot { padding: 84px 0 28px; background: var(--ink); }
.foot-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; padding-bottom: 48px; border-bottom: 1px solid var(--border-dark); }
.foot-brand p { color: var(--white-soft); font-size: 0.92rem; margin-top: 16px; max-width: 32ch; }
.foot-col h4 { font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--violet-300); margin-bottom: 18px; }
.foot-col ul { display: flex; flex-direction: column; gap: 12px; }
.foot-col a { color: var(--white-soft); font-size: 0.92rem; transition: color 0.2s var(--ease); }
.foot-col a:hover { color: #fff; }
.foot-bottom { padding-top: 26px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.foot-bottom p { color: var(--white-faint); font-size: 0.82rem; }

/* ---------- Floating WhatsApp ---------- */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 55; width: 56px; height: 56px; border-radius: 50%;
  background: var(--whatsapp); color: #fff; display: grid; place-items: center;
  box-shadow: 0 14px 34px -10px rgba(34, 197, 94, 0.55); transition: transform 0.25s var(--ease), box-shadow .25s var(--ease);
}
.wa-float:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -10px rgba(34, 197, 94, 0.6); }
.wa-float svg { width: 26px; height: 26px; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* =====================================================================
   Responsive
===================================================================== */
@media (max-width: 1080px) {
  .foot-grid { grid-template-columns: 1fr 1fr; row-gap: 40px; }
}

@media (max-width: 860px) {
  .about-bento { grid-template-columns: 1fr; grid-auto-rows: auto; }
  .about-panel { grid-column: 1; grid-row: auto; }
}

@media (max-width: 780px) {
  .timeline { flex-direction: column; gap: 0; }
  .timeline::before { top: 0; bottom: 0; left: 31px; right: auto; width: 2px; height: auto; }
  .timeline-step { flex-direction: row; text-align: left; align-items: flex-start; gap: 20px; padding-bottom: 32px; }
  .timeline-step:last-child { padding-bottom: 0; }
  .timeline-badge { margin-bottom: 0; flex-shrink: 0; }
  .timeline-step p { max-width: 40ch; }
}

@media (max-width: 980px) {
  .nav-links {
    position: fixed; inset: 0 0 0 auto; width: min(320px, 84vw); height: 100vh;
    background: var(--ink); border-left: 1px solid var(--border-dark);
    flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 4px;
    padding: 100px 26px 40px; transform: translateX(100%); transition: transform 0.4s var(--ease);
  }
  .nav-links.open { transform: translateX(0); box-shadow: -24px 0 50px rgba(0, 0, 0, 0.4); }
  .nav-links a { padding: 14px 16px; font-size: 1.02rem; }
  .nav-cta .btn-primary.btn-sm { display: none; }
  .nav-toggle { display: flex; }
  .block { padding: 76px 0; }
  .hero { padding: 80px 0 70px; }
  .strip-inner { grid-template-columns: repeat(2, 1fr); row-gap: 28px; }
  .stat:nth-child(3) { border-left: 0; }
  .contact-card .inner { padding: 40px 26px; }
  .contact-grid { grid-template-columns: 1fr; }
  .prod-spotlight { grid-template-columns: 1fr; text-align: center; padding: 36px 32px; }
  .prod-spotlight .node-icon { margin-inline: auto; }
  .prod-spotlight .desc { margin-inline: auto; }
  .prod-spotlight .feature-tags { justify-content: center; }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .container { padding-inline: 20px; }
  .topbar { font-size: 0.72rem; padding: 9px 14px; }
  .hero-actions { width: 100%; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .prod-grid { grid-template-columns: 1fr; }
  .cta-banner { flex-direction: column; align-items: flex-start; padding: 28px 24px; }
  .cta-banner .btn { width: 100%; justify-content: center; }
  .foot-grid { grid-template-columns: 1fr; gap: 32px; }
  .foot-bottom { flex-direction: column; align-items: flex-start; }
  .wa-float { width: 50px; height: 50px; right: 16px; bottom: 16px; }
  .contact-cta { flex-direction: column; }
  .contact-cta .btn { width: 100%; justify-content: center; }
}