:root {
  --bg: #060912;
  --bg-soft: #0b1020;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-border: rgba(255, 255, 255, 0.09);
  --text: #e7ecf5;
  --muted: #94a3b8;
  --cyan: #22d3ee;
  --violet: #a855f7;
  --grad: linear-gradient(120deg, #22d3ee, #a855f7);
  --radius: 18px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --max: 1180px;
  --font: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --display: "Space Grotesk", var(--font);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- Animated background ---------- */
.bg-grid {
  position: fixed; inset: 0; z-index: -2;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 75%);
}
.bg-glow {
  position: fixed; z-index: -1; inset: 0; pointer-events: none;
  background:
    radial-gradient(600px 400px at 80% -5%, rgba(168,85,247,0.20), transparent 60%),
    radial-gradient(600px 400px at 10% 10%, rgba(34,211,238,0.18), transparent 60%);
}

/* ---------- Navbar ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(6, 9, 18, 0.6);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.nav.is-scrolled { border-color: var(--panel-border); background: rgba(6,9,18,0.85); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--display); font-weight: 700; font-size: 1.15rem; }
.brand__mark { display: grid; place-items: center; }
.brand__accent { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav__links { display: flex; align-items: center; gap: 28px; font-size: .95rem; }
.nav__links a { color: var(--muted); transition: color .2s; }
.nav__links a:hover { color: var(--text); }
.nav__cta {
  padding: 9px 18px; border-radius: 999px;
  background: var(--grad); color: #060912 !important; font-weight: 600;
}
.nav__cta:hover { filter: brightness(1.08); }

/* Dropdown */
.nav__dropdown { position: relative; }
.nav__dropdown-toggle { display: inline-flex; align-items: center; gap: 6px; }
.caret { font-size: .7rem; transition: transform .2s; }
.nav__dropdown:hover .caret,
.nav__dropdown:focus-within .caret { transform: rotate(180deg); }
.nav__submenu {
  position: absolute; top: calc(100% + 10px); left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 250px; padding: 10px; display: flex; flex-direction: column; gap: 2px;
  background: rgba(6, 9, 18, 0.97); border: 1px solid var(--panel-border);
  border-radius: 14px; box-shadow: var(--shadow); backdrop-filter: blur(14px);
  opacity: 0; visibility: hidden; transition: opacity .2s, transform .2s, visibility .2s;
}
.nav__dropdown:hover .nav__submenu,
.nav__dropdown:focus-within .nav__submenu { opacity: 1; visibility: visible; transform: translateX(-50%); }
.nav__submenu a { padding: 11px 13px; border-radius: 10px; color: var(--muted); font-size: .92rem; white-space: nowrap; transition: background .2s, color .2s; }
.nav__submenu a:hover { background: rgba(34, 211, 238, 0.08); color: var(--text); }
.nav__subgroup { margin-top: 6px; padding-top: 8px; border-top: 1px solid var(--panel-border); display: flex; flex-direction: column; gap: 2px; }
.nav__subgroup-label { padding: 6px 13px 4px; color: var(--cyan); font-size: .72rem; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600; }
.nav__subgroup a { padding-left: 26px; }
.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(--text); transition: .3s; }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 26px; border-radius: 999px; font-weight: 600; font-size: .98rem;
  cursor: pointer; border: 1px solid transparent; transition: transform .2s, filter .2s, background .2s;
}
.btn--sm { padding: 10px 18px; font-size: .9rem; }
.btn--primary { background: var(--grad); color: #060912; }
.btn--primary:hover { transform: translateY(-2px); filter: brightness(1.07); }
.btn--ghost { border-color: var(--panel-border); color: var(--text); background: var(--panel); }
.btn--ghost:hover { border-color: var(--cyan); color: var(--cyan); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 90px 0 70px; }
.hero__inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.pill {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 15px; border-radius: 999px; font-size: .82rem; color: var(--muted);
  border: 1px solid var(--panel-border); background: var(--panel); margin-bottom: 22px;
}
.pill__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); animation: pulse 1.8s infinite; }
@keyframes pulse { 50% { opacity: .4; } }
.hero__title { font-family: var(--display); font-size: clamp(1.25rem, 2.8vw, 2rem); line-height: 1.05; letter-spacing: -1px; white-space: nowrap; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__sub { margin: 22px 0 30px; color: var(--muted); font-size: 1.08rem; max-width: 540px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__trust { margin-top: 38px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; color: var(--muted); font-size: .85rem; }
.hero__logos { display: flex; gap: 20px; flex-wrap: wrap; font-family: var(--display); font-weight: 600; opacity: .8; }

/* Hero visual */
.hero__visual { display: grid; place-items: center; }
.fiber-card {
  width: 100%; max-width: 420px; padding: 22px; border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(168,85,247,0.12), rgba(34,211,238,0.06));
  border: 1px solid var(--panel-border); box-shadow: var(--shadow); backdrop-filter: blur(6px);
}
.fiber-card__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.fiber-card__title { font-family: var(--display); font-weight: 600; }
.status { font-size: .78rem; color: #4ade80; }
.status--ok { color: #4ade80; }
.fiber-lines { display: flex; flex-direction: column; gap: 14px; padding: 4px 0; }
.fiber-row { display: flex; align-items: center; gap: 12px; }
.fiber-end { flex: 0 0 auto; width: 54px; height: 30px; display: block; filter: drop-shadow(0 0 8px rgba(34,211,238,0.25)); }
.fiber-track { flex: 1; height: 3px; border-radius: 3px; background: linear-gradient(90deg, var(--cyan), var(--violet)); position: relative; overflow: hidden; opacity: .85; }
.fiber-track::after { content: ""; position: absolute; top: 0; left: -40%; width: 40%; height: 100%; background: #fff; opacity: .7; animation: flow 1.8s infinite; }
.fiber-row:nth-child(2) .fiber-track::after { animation-delay: .2s; }
.fiber-row:nth-child(3) .fiber-track::after { animation-delay: .4s; }
.fiber-row:nth-child(4) .fiber-track::after { animation-delay: .6s; }
.fiber-row:nth-child(5) .fiber-track::after { animation-delay: .8s; }
@keyframes flow { to { left: 110%; } }
.fiber-card__metrics { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin: 18px 0; text-align: center; }
.fiber-card__metrics strong { display: block; font-family: var(--display); font-size: 1.15rem; }
.fiber-card__metrics small { color: var(--muted); font-size: .72rem; }
.fiber-card__ai { display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: 12px; background: rgba(0,0,0,0.3); border: 1px solid var(--panel-border); }
.fiber-card__ai p { font-size: .82rem; color: var(--muted); }
.ai-pulse { width: 12px; height: 12px; border-radius: 50%; background: var(--violet); box-shadow: 0 0 0 0 rgba(168,85,247,0.6); animation: ring 1.6s infinite; flex: 0 0 auto; }
@keyframes ring { 70% { box-shadow: 0 0 0 12px rgba(168,85,247,0); } 100% { box-shadow: 0 0 0 0 rgba(168,85,247,0); } }

.hero__scroll { position: absolute; bottom: 18px; left: 50%; transform: translateX(-50%); font-size: .72rem; letter-spacing: 2px; color: var(--muted); text-transform: uppercase; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.hero__scroll span { width: 1px; height: 34px; background: linear-gradient(var(--cyan), transparent); animation: scrolldown 1.8s infinite; }
@keyframes scrolldown { 0% { opacity: 0; } 50% { opacity: 1; } 100% { opacity: 0; transform: translateY(10px); } }

/* ---------- Stats ---------- */
.stats { padding: 40px 0; border-top: 1px solid var(--panel-border); border-bottom: 1px solid var(--panel-border); }
.stats__grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; text-align: center; }
.stat strong { font-family: var(--display); font-size: clamp(1.6rem, 3vw, 2.4rem); background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; display: block; }
.stat span { color: var(--muted); font-size: .9rem; }

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section--alt { background: var(--bg-soft); }
#about { padding: 12px 0; }
#about .section__head { margin-bottom: 16px; }
.section__head { max-width: 660px; margin: 0 auto 56px; text-align: center; }
.eyebrow { color: var(--cyan); font-size: .82rem; text-transform: uppercase; letter-spacing: 2px; font-weight: 600; }
.section__head h2 { font-family: var(--display); font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin: 12px 0 14px; letter-spacing: -.5px; }
.section__head p { color: var(--muted); font-size: 1.05rem; }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.card {
  padding: 28px; border-radius: var(--radius); background: var(--panel);
  border: 1px solid var(--panel-border); transition: transform .25s, border-color .25s, background .25s;
}
.card:hover { transform: translateY(-6px); border-color: rgba(34,211,238,0.4); background: rgba(34,211,238,0.04); }
.card__icon { font-size: 1.7rem; width: 52px; height: 52px; display: grid; place-items: center; border-radius: 14px; background: var(--grad); color: #060912; margin-bottom: 16px; }
.card h3 { font-family: var(--display); font-size: 1.2rem; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: .95rem; }

/* ---------- Products ---------- */
.products { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; align-items: stretch; }
.product { position: relative; padding: 30px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--panel-border); display: flex; flex-direction: column; }
.product--featured { border-color: rgba(168,85,247,0.5); background: linear-gradient(160deg, rgba(168,85,247,0.12), rgba(34,211,238,0.05)); box-shadow: var(--shadow); }
.product__tag { align-self: flex-start; font-size: .72rem; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); padding: 4px 10px; border: 1px solid var(--panel-border); border-radius: 999px; margin-bottom: 16px; }
.product__tag--hot { color: #fff; background: var(--grad); border: 0; }
.product h3 { font-family: var(--display); font-size: 1.5rem; margin-bottom: 10px; }
.product p { color: var(--muted); font-size: .95rem; margin-bottom: 16px; }
.product ul { list-style: none; margin-bottom: 20px; display: grid; gap: 8px; }
.product li { font-size: .9rem; padding-left: 22px; position: relative; color: var(--text); }
.product li::before { content: "✓"; position: absolute; left: 0; color: var(--cyan); }
.product .btn { margin-top: auto; align-self: flex-start; }

/* Products page — Zenithtel-style detail layout */
.breadcrumb { padding: 18px 0 4px; font-size: .88rem; color: var(--muted); }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb i { margin: 0 8px; opacity: .5; font-style: normal; }

.product-layout { display: grid; grid-template-columns: 250px 1fr; gap: 34px; padding: 26px 0 70px; align-items: start; }
.product-sidebar { position: sticky; top: 92px; background: var(--panel); border: 1px solid var(--panel-border); border-radius: var(--radius); padding: 14px 14px; }
.product-sidebar h4 { font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin: 0 4px 8px; }
.product-cat { margin-bottom: 8px; }
.product-cat__name { font-weight: 600; color: #e6edf6; font-size: .95rem; margin: 0 0 2px 4px; }
.product-cat a { display: block; padding: 4px 10px; border-radius: 8px; color: var(--muted); font-size: .9rem; transition: background .2s, color .2s; }
.product-cat a:hover, .product-cat a.is-active { background: rgba(34,211,238,.1); color: #e6edf6; }

.product-detail { background: var(--panel); border: 1px solid var(--panel-border); border-radius: var(--radius); padding: 30px; margin-bottom: 40px; }
.product-detail:last-child { margin-bottom: 0; }
.product-detail--compact { margin-bottom: 16px; }
.product-group { margin-bottom: 26px; }
.product-group__title { font-size: 1.4rem; color: #e6edf6; margin: 0 0 8px; }
.product-group__desc { color: var(--text); font-size: .95rem; line-height: 1.6; margin: 0; }
.product-detail .eyebrow { margin-bottom: 8px; }
.product-detail__title { font-family: var(--display); font-size: clamp(1.6rem, 3vw, 2.1rem); margin-bottom: 10px; }
.product-gallery { margin-bottom: 10px; }
#prod-1ru .product-gallery { margin-bottom: 8px; }
.pg-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pg-grid img { width: 100%; aspect-ratio: 4/3; object-fit: contain; border-radius: 14px; border: 1px solid var(--panel-border); background: rgba(10,14,22,.55); }
.pg-grid img.pg-transparent { background: transparent; opacity: .9; }
#prod-2ru .pg-grid { overflow: hidden; }
#prod-2ru .pg-grid img { transform: scale(1.6); }
#prod-1ru .pg-grid { overflow: hidden; }
#prod-1ru .pg-grid img:first-child { transform: scale(1.18); }
#prod-axgui .pg-grid img { grid-column: 1 / -1; }
#prod-axnet .pg-grid img { grid-column: 1 / -1; }
@media (max-width: 600px) { .pg-grid { grid-template-columns: 1fr; } }
.pg-main { aspect-ratio: 16/9; border-radius: 14px; border: 1px solid var(--panel-border); background: linear-gradient(135deg, rgba(34,211,238,.12), rgba(168,85,247,.12)); display: grid; place-items: center; color: var(--muted); font-size: .9rem; }
.pg-thumbs { display: flex; gap: 10px; margin-top: 12px; }
.pg-thumb { width: 92px; height: 60px; border-radius: 10px; border: 1px solid var(--panel-border); background: linear-gradient(135deg, rgba(34,211,238,.1), rgba(168,85,247,.1)); cursor: pointer; transition: border-color .2s, box-shadow .2s; }
.pg-thumb.is-active { border-color: var(--cyan); box-shadow: 0 0 0 2px rgba(34,211,238,.25); }
.pg-main img { width: 100%; height: 100%; object-fit: cover; border-radius: 14px; display: block; }
.pg-thumb img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; display: block; }
.product-detail__desc { color: var(--muted); line-height: 1.7; margin-bottom: 16px; }
.product-detail__desc--planning { color: #fff; }
.spec-list { list-style: none; display: grid; gap: 9px; margin: 4px 0 20px; }
.spec-list li { padding-left: 24px; position: relative; color: var(--text); font-size: .93rem; line-height: 1.55; }
.spec-list li::before { content: "✓"; position: absolute; left: 0; color: var(--cyan); font-weight: 700; }

@media (max-width: 900px) {
  .product-layout { grid-template-columns: 1fr; gap: 22px; }
  .product-sidebar { position: static; }
}

/* Product categories */
.prod-category { margin-bottom: 48px; }
.prod-category:last-child { margin-bottom: 0; }
.prod-category__title { font-family: var(--display); font-size: clamp(1.35rem, 3vw, 1.9rem); margin-bottom: 8px; }
.prod-category__desc { color: var(--muted); max-width: 640px; margin-bottom: 22px; }

/* ---------- Engine ---------- */
.engine { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.engine__copy h2 { font-family: var(--display); font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin: 12px 0 16px; }
.engine__copy > p { color: var(--muted); margin-bottom: 22px; }
.engine__list { list-style: none; display: grid; gap: 14px; margin-bottom: 24px; }
.engine__list li { padding-left: 20px; position: relative; color: var(--text); }
.engine__list li::before { content: "▸"; position: absolute; left: 0; color: var(--violet); }
.engine__list strong { color: #fff; }
.engine__visual { display: grid; place-items: center; }
.neural { position: relative; width: 300px; height: 300px; }
.neural__node { position: absolute; width: 16px; height: 16px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 18px rgba(34,211,238,0.6); }
.neural__node:nth-child(1) { top: 60px; left: 40px; }
.neural__node:nth-child(2) { top: 50px; left: 260px; }
.neural__node:nth-child(3) { top: 240px; left: 30px; }
.neural__node:nth-child(4) { top: 250px; left: 270px; }
.neural__node:nth-child(5) { top: 20px; left: 150px; }
.neural__node:nth-child(6) { top: 280px; left: 150px; }
.neural__node:nth-child(7) { top: 142px; left: 142px; width: 22px; height: 22px; }
.neural__links { position: absolute; inset: 0; width: 100%; height: 100%; }
.neural__links path { stroke: url(#g); stroke-width: 1.5; fill: none; opacity: .5; stroke-dasharray: 4; animation: dash 12s linear infinite; }
@keyframes dash { to { stroke-dashoffset: -200; } }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.step { padding: 30px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--panel-border); }
.step__num { font-family: var(--display); font-size: 2.4rem; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.step h3 { font-family: var(--display); font-size: 1.4rem; margin: 6px 0 10px; }
.step p { color: var(--muted); font-size: .95rem; }

/* ---------- Metrics ---------- */
.metrics__grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 22px; }
.metric { text-align: center; padding: 32px 18px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--panel-border); }
.metric strong { display: block; font-family: var(--display); font-size: clamp(2rem, 4vw, 2.8rem); background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.metric span { color: var(--muted); font-size: .9rem; }

/* ---------- Use cases ---------- */
.usecases { display: grid; grid-template-columns: repeat(2,1fr); gap: 22px; }
.usecase { padding: 30px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--panel-border); transition: border-color .25s, transform .25s; }
.usecase:hover { border-color: rgba(168,85,247,0.4); transform: translateY(-4px); }
.usecase h3 { font-family: var(--display); font-size: 1.3rem; margin-bottom: 10px; }
.usecase p { color: var(--muted); font-size: .95rem; }
.usecase__link { display: inline-block; margin-top: 14px; color: var(--cyan); font-weight: 600; text-decoration: none; }
.usecase__link:hover { color: var(--violet); }

/* ---------- CTA ---------- */
.cta { padding: 18px 0 44px; }
.cta__inner { max-width: 1040px; margin: 0 auto; text-align: left; padding: 44px 40px; border-radius: 28px; background: linear-gradient(160deg, rgba(34,211,238,0.12), rgba(168,85,247,0.14)); border: 1px solid var(--panel-border); box-shadow: var(--shadow); }
.cta__head { text-align: center; margin-bottom: 30px; }
.cta__head .eyebrow { margin-bottom: 0; }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 18px; }
.contact-card { padding: 24px; border-radius: var(--radius); background: rgba(0,0,0,0.25); border: 1px solid var(--panel-border); transition: border-color .25s, transform .25s; }
.contact-card:hover { border-color: rgba(34,211,238,0.4); transform: translateY(-4px); }
.contact-card h3 { font-family: var(--display); font-size: 1.2rem; margin-bottom: 8px; color: var(--text); }
.contact-card p { color: var(--muted); font-size: .9rem; margin: 0 0 12px; line-height: 1.5; }
.contact-card a { color: var(--cyan); font-weight: 600; font-size: .92rem; word-break: break-all; }
.contact-card a:hover { text-decoration: underline; }
.contact-meta { display: flex; flex-wrap: wrap; gap: 18px 40px; justify-content: center; margin-bottom: 28px; padding-top: 20px; border-top: 1px solid var(--panel-border); }
.contact-meta__item { font-size: .95rem; color: var(--text); }
.contact-meta__item a { color: var(--cyan); font-weight: 600; }
.cta__contact-label { display: inline-block; color: var(--cyan); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; font-size: .72rem; margin-right: 8px; }
.cta__form { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta__form input { padding: 13px 20px; border-radius: 999px; border: 1px solid var(--panel-border); background: rgba(0,0,0,0.3); color: var(--text); width: min(320px, 80vw); font-size: .95rem; outline: none; }
.cta__form input:focus { border-color: var(--cyan); }
.cta__note { margin-top: 16px; font-size: .9rem; color: #4ade80; min-height: 1.2em; text-align: center; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--panel-border); padding: 60px 0 30px; background: var(--bg-soft); }
.footer__inner { display: grid; grid-template-columns: 1.4fr 2fr; gap: 40px; }
.footer__brand p { color: var(--muted); font-size: .92rem; margin-top: 10px; max-width: 280px; }
.footer__cols { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.footer__cols h4 { font-size: .95rem; margin-bottom: 14px; }
.footer__cols a { display: block; color: var(--muted); font-size: .9rem; margin-bottom: 9px; transition: color .2s; }
.footer__cols a:hover { color: var(--cyan); }
.footer__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--panel-border); color: var(--muted); font-size: .82rem; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .engine { grid-template-columns: 1fr; }
  .cards, .products, .steps, .metrics__grid { grid-template-columns: repeat(2,1fr); }
  .stats__grid { grid-template-columns: repeat(2,1fr); gap: 30px; }
  .footer__inner { grid-template-columns: 1fr; }
  .nav__links { position: fixed; top: 68px; right: 0; height: calc(100vh - 68px); width: 260px; flex-direction: column; align-items: flex-start; gap: 6px; padding: 24px; background: rgba(6,9,18,0.97); border-left: 1px solid var(--panel-border); transform: translateX(100%); transition: transform .3s; }
  .nav__links.is-open { transform: translateX(0); }
  .nav__links a { padding: 10px 0; width: 100%; }
  .nav__toggle { display: flex; }
  /* Dropdown expands inline inside the mobile panel */
  .nav__dropdown { width: 100%; }
  .nav__dropdown-toggle { width: 100%; }
  .nav__submenu {
    position: static; transform: none; opacity: 1; visibility: visible;
    min-width: 0; box-shadow: none; backdrop-filter: none; border: 0;
    padding: 0 0 0 14px; background: none;
  }
  .nav__submenu a { padding: 9px 0; }
}
@media (max-width: 560px) {
  .cards, .products, .steps, .metrics__grid, .usecases { grid-template-columns: 1fr; }
  .section { padding: 70px 0; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-meta { flex-direction: column; align-items: flex-start; gap: 12px; }
}