/* FIBERMETRICS — site styles */
:root {
  --bg: #06080b;
  --bg-2: #0a0d12;
  --surface: #0e1218;
  --surface-2: #131922;
  --line: #1b222c;
  --line-2: #263040;
  --text: #e9eef3;
  --muted: #8c98a6;
  --dim: #5d6876;
  --accent: #009cd6;          /* brand blue */
  --accent-2: #0083b8;
  --accent-ink: #020b18;
  --accent-glow: rgba(0, 156, 214, .35);
  --alarm: #ff5468;
  --struct: #3a4656;
  --radius: 18px;
  --radius-sm: 10px;
  --max: 1240px;
  --gutter: clamp(16px, 4vw, 40px);
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

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

/* ---------- Type ---------- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.02em; margin: 0; line-height: 1.08; }
h1 { font-size: clamp(2.6rem, 6.4vw, 5.6rem); letter-spacing: -0.035em; }
h2 { font-size: clamp(2rem, 4vw, 3.3rem); letter-spacing: -0.03em; }
h3 { font-size: 1.25rem; line-height: 1.25; }
p { margin: 0; }
.lead { font-size: clamp(1.05rem, 1.4vw, 1.25rem); color: var(--muted); max-width: 62ch; }
.muted { color: var(--muted); }
.mono { font-family: var(--font-mono); }
.accent { color: var(--accent); }
.grad {
  background: linear-gradient(100deg, #fff 0%, #cdeefa 40%, var(--accent) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent);
}
.eyebrow::before {
  content: ""; width: 22px; height: 1px; background: currentColor;
  box-shadow: 0 0 8px var(--accent);
}

/* ---------- Buttons ---------- */
.btn {
  --h: 50px;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: var(--h); padding: 0 22px; border-radius: 999px;
  font-weight: 600; font-size: .95rem; letter-spacing: -.005em;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, border-color .25s;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; transition: transform .25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 0 0 0 var(--accent-glow); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 40px -6px var(--accent-glow); }
.btn-ghost { border-color: var(--line-2); background: rgba(255,255,255,.02); }
.btn-ghost:hover { border-color: #3c4a5c; background: rgba(255,255,255,.05); }
.btn-sm { --h: 40px; padding: 0 16px; font-size: .88rem; }

.link-arrow { display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-weight: 600; }
.link-arrow svg { width: 16px; height: 16px; transition: transform .25s var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(6, 8, 11, .72);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-color: var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { width: 30px; height: 30px; flex: none; }
.brand-word { font-family: var(--font-display); font-size: 1.12rem; letter-spacing: .02em; font-weight: 400; line-height: 1; }
.brand-word b { font-weight: 700; }
.brand-logo { display: block; height: 18px; width: auto; }
.footer-about .brand-logo { height: 22px; }
@media (max-width: 420px) { .brand-logo { height: 15px; } }
.brand-by { display: block; font-family: var(--font-mono); font-size: .62rem; color: var(--dim); letter-spacing: .12em; text-transform: uppercase; margin-top: 4px; }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  display: block; padding: 8px 14px; border-radius: 999px; font-size: .92rem; color: var(--muted);
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--text); background: rgba(255,255,255,.04); }
.nav-links a[aria-current="page"] { color: var(--text); background: rgba(255,255,255,.06); }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.menu-btn {
  display: none; width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line-2);
  background: transparent; cursor: pointer; align-items: center; justify-content: center;
}
.menu-btn span { display: block; width: 18px; height: 1.5px; background: var(--text); position: relative; transition: transform .3s var(--ease), background .2s; }
.menu-btn span::before, .menu-btn span::after { content: ""; position: absolute; left: 0; width: 18px; height: 1.5px; background: var(--text); transition: transform .3s var(--ease); }
.menu-btn span::before { top: -6px; } .menu-btn span::after { top: 6px; }
.menu-open .menu-btn span { background: transparent; }
.menu-open .menu-btn span::before { transform: translateY(6px) rotate(45deg); }
.menu-open .menu-btn span::after { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 72px 0 0 0; z-index: 49; background: rgba(6,8,11,.97);
  backdrop-filter: blur(12px); padding: 24px var(--gutter) 40px;
  display: none; flex-direction: column; gap: 4px; overflow-y: auto;
}
.menu-open .mobile-menu { display: flex; }
.mobile-menu a { font-family: var(--font-display); font-size: 1.8rem; padding: 10px 0; border-bottom: 1px solid var(--line); letter-spacing: -.02em; }
.mobile-menu .btn { margin-top: 24px; font-family: var(--font-body); font-size: 1rem; border-bottom: 0; }

@media (max-width: 960px) {
  .nav-links, .nav-cta .btn { display: none; }
  .menu-btn { display: inline-flex; }
}

/* ---------- Sections ---------- */
main { display: block; }
.section { padding: clamp(80px, 11vw, 150px) 0; position: relative; }
.section-tight { padding: clamp(56px, 7vw, 96px) 0; }
.section-head { display: grid; gap: 18px; margin-bottom: clamp(40px, 5vw, 64px); max-width: 780px; }
.section-head.split { max-width: none; grid-template-columns: 1.2fr 1fr; align-items: end; gap: 40px; }
@media (max-width: 860px) { .section-head.split { grid-template-columns: 1fr; gap: 18px; } }
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--line-2), transparent); border: 0; margin: 0; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 150px 0 0; overflow: hidden; isolation: isolate; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto -10%; height: 900px; z-index: -1;
  background:
    radial-gradient(600px 380px at 78% 30%, rgba(0, 156, 214,.13), transparent 70%),
    radial-gradient(500px 300px at 10% 10%, rgba(80,140,255,.07), transparent 70%);
}
.grid-bg {
  position: absolute; inset: 0; z-index: -1; opacity: .5;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 30%, transparent 75%);
}
.hero-inner { display: grid; gap: 28px; max-width: 980px; }
.hero h1 { max-width: 15ch; }
.hero .lead { max-width: 58ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }

.hero-visual {
  position: relative; margin-top: clamp(48px, 6vw, 80px);
  border: 1px solid var(--line); border-radius: 24px; overflow: hidden;
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
}
.hero-visual svg.scene { width: 100%; height: auto; }
.hv-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 14px 20px; border-bottom: 1px solid var(--line);
  font-family: var(--font-mono); font-size: .74rem; color: var(--dim); letter-spacing: .06em; text-transform: uppercase;
}
.hv-bar .dots { display: flex; gap: 6px; }
.hv-bar .dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--line-2); display: block; }
.status-pill { display: inline-flex; align-items: center; gap: 8px; padding: 5px 10px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--muted); }
.status-pill i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); display: block; }
.status-pill.alarm { border-color: rgba(255,84,104,.5); color: #ffb3bd; }
.status-pill.alarm i { background: var(--alarm); box-shadow: 0 0 10px var(--alarm); }
.hv-trace { border-top: 1px solid var(--line); display: grid; grid-template-columns: 180px 1fr; }
.hv-trace .meta { padding: 16px 20px; border-right: 1px solid var(--line); font-family: var(--font-mono); font-size: .72rem; color: var(--dim); display: grid; gap: 6px; align-content: center; text-transform: uppercase; letter-spacing: .06em; }
.hv-trace .meta b { color: var(--text); font-weight: 500; font-size: .9rem; letter-spacing: 0; }
.hv-trace canvas { width: 100%; height: 96px; display: block; }
@media (max-width: 640px) {
  .hero-visual svg.scene { width: 170%; margin-left: -60%; }
  .hv-trace { grid-template-columns: 1fr; }
  .hv-trace .meta { border-right: 0; border-bottom: 1px solid var(--line); grid-auto-flow: column; justify-content: space-between; }
}

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stat { padding: 34px 28px; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat b { display: block; font-family: var(--font-display); font-weight: 500; font-size: clamp(1.8rem, 3vw, 2.5rem); letter-spacing: -.03em; line-height: 1.1; }
.stat span { display: block; color: var(--muted); font-size: .9rem; margin-top: 6px; }
@media (max-width: 860px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}
@media (max-width: 420px) { .stat { padding: 24px 16px; } }

/* ---------- Cards / product grid ---------- */
.card {
  position: relative; border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  overflow: hidden; isolation: isolate;
  transition: border-color .3s, transform .4s var(--ease);
}
.card::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0; transition: opacity .35s;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(0, 156, 214,.10), transparent 60%);
}
.card:hover { border-color: var(--line-2); }
.card:hover::before { opacity: 1; }

.product-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.product-card { grid-column: span 4; display: flex; flex-direction: column; min-height: 100%; }
.product-card.wide { grid-column: span 6; }
.product-card .ill { aspect-ratio: 16 / 10; border-bottom: 1px solid var(--line); background: radial-gradient(ellipse at 50% 100%, rgba(0, 156, 214,.06), transparent 70%); }
.product-card .ill svg { width: 100%; height: 100%; }
.product-card .body { padding: 22px 24px 26px; display: grid; gap: 10px; flex: 1; align-content: start; }
.product-card .cat { font-family: var(--font-mono); font-size: .72rem; color: var(--dim); text-transform: uppercase; letter-spacing: .1em; }
.product-card h3 { font-size: 1.45rem; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.product-card p { color: var(--muted); font-size: .95rem; }
.product-card .go { margin-top: auto; padding-top: 10px; }
.product-card .arrow-btn {
  position: absolute; top: 18px; right: 18px; width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--line-2); display: grid; place-items: center; background: rgba(6,8,11,.6);
  transition: background .3s, border-color .3s, transform .3s var(--ease);
}
.product-card .arrow-btn svg { width: 16px; height: 16px; }
.product-card:hover .arrow-btn { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); transform: rotate(-45deg); }
@media (max-width: 1024px) { .product-card, .product-card.wide { grid-column: span 6; } }
@media (max-width: 640px)  { .product-card, .product-card.wide { grid-column: span 12; } }

.tag {
  display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px;
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase;
  border: 1px solid rgba(0, 156, 214,.35); color: var(--accent); background: rgba(0, 156, 214,.06);
}
.tag.neutral { border-color: var(--line-2); color: var(--muted); background: transparent; }

/* ---------- Illustrations ---------- */
.ill-struct { stroke: var(--struct); fill: none; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.ill-struct-thin { stroke: #253040; fill: none; stroke-width: 1; }
.ill-fill { fill: #121821; stroke: var(--struct); stroke-width: 1.4; }
.ill-soil { fill: #0c1016; }
.fiber-base { stroke: var(--accent); stroke-opacity: .32; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.fiber-pulse {
  stroke: var(--accent); fill: none; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 70 930; stroke-dashoffset: 1000;
  filter: drop-shadow(0 0 6px var(--accent));
  animation: pulse-run 4.2s linear infinite;
}
.fiber-pulse.d2 { animation-delay: -2.1s; }
.sensor-dot { fill: var(--accent); filter: drop-shadow(0 0 6px var(--accent)); animation: blink 2.4s ease-in-out infinite; }
.ill-label { font-family: var(--font-mono); font-size: 11px; fill: var(--dim); letter-spacing: .08em; }
.ping { fill: none; stroke: var(--accent); stroke-width: 1.5; transform-box: fill-box; transform-origin: center; animation: ping 2.6s var(--ease) infinite; }
.ping.d2 { animation-delay: 1.3s; }
@keyframes pulse-run { to { stroke-dashoffset: 0; } }
@keyframes blink { 50% { opacity: .35; } }
@keyframes ping { 0% { transform: scale(.3); opacity: 1; } 100% { transform: scale(2.6); opacity: 0; } }

/* hero scene */
.alarm-ring { fill: none; stroke: var(--alarm); stroke-width: 1.5; transform-box: fill-box; transform-origin: center; opacity: 0; }
.scene.alarming .alarm-ring { animation: ping 1.6s var(--ease) infinite; }
.scene.alarming .alarm-ring.d2 { animation-delay: .5s; }
.scene .alarm-card { opacity: 0; transform: translateY(6px); transition: opacity .4s, transform .4s var(--ease); }
.scene.alarming .alarm-card { opacity: 1; transform: none; }
.scene .zone-seg { stroke: var(--alarm); stroke-width: 3; fill: none; opacity: 0; transition: opacity .3s; filter: drop-shadow(0 0 6px var(--alarm)); }
.scene.alarming .zone-seg { opacity: 1; }
.scene .intruder { opacity: 0; transition: opacity .5s; }
.scene.alarming .intruder { opacity: 1; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: step; list-style: none; margin: 0; padding: 0; }
.step { padding: 30px 28px 32px; display: grid; gap: 14px; align-content: start; }
.step .num { font-family: var(--font-mono); font-size: .8rem; color: var(--accent); display: flex; align-items: center; gap: 10px; }
.step .num::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, rgba(0, 156, 214,.4), transparent); }
.step h3 { font-size: 1.4rem; }
.step p { color: var(--muted); }
.step .icon { width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line-2); display: grid; place-items: center; color: var(--accent); background: rgba(0, 156, 214,.04); }
.step .icon svg { width: 22px; height: 22px; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }

/* ---------- Split / features ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 88px); align-items: center; }
.split.top { align-items: start; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.stack { display: grid; gap: 20px; align-content: start; }
.feature-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.feature-list li { display: grid; grid-template-columns: 28px 1fr; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.feature-list li svg { width: 20px; height: 20px; color: var(--accent); margin-top: 3px; }
.feature-list b { display: block; font-weight: 600; margin-bottom: 2px; }
.feature-list span { color: var(--muted); font-size: .95rem; }

.benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.benefit { padding: 26px 24px 28px; display: grid; gap: 10px; align-content: start; }
.benefit .k { font-family: var(--font-mono); font-size: .72rem; color: var(--dim); }
.benefit h3 { font-size: 1.15rem; }
.benefit p { color: var(--muted); font-size: .95rem; }
@media (max-width: 960px) { .benefits { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .benefits { grid-template-columns: 1fr; } }

/* ---------- Software mock ---------- */
.mock { padding: 0; }
.mock-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); font-family: var(--font-mono); font-size: .72rem; color: var(--dim); text-transform: uppercase; letter-spacing: .08em; }
.mock-body { padding: 18px; display: grid; gap: 14px; }
.mock-zone { border: 1px solid var(--line); border-radius: 12px; padding: 14px; display: grid; gap: 10px; }
.mock-zone .row { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: .75rem; color: var(--muted); }
.mock-zone canvas { width: 100%; height: 80px; display: block; }
.mock-foot { font-size: .8rem; color: var(--dim); padding: 0 18px 16px; }

/* ---------- Applications ---------- */
.app-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.app-card { padding: 28px 26px; display: grid; gap: 14px; min-height: 220px; align-content: start; }
.app-card .icon { width: 48px; height: 48px; color: var(--accent); }
.app-card h3 { font-size: 1.3rem; }
.app-card p { color: var(--muted); font-size: .95rem; }
.app-card .chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 6px; }
@media (max-width: 960px) { .app-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .app-grid { grid-template-columns: 1fr; } }

.chip {
  display: inline-flex; align-items: center; height: 30px; padding: 0 12px; border-radius: 999px;
  border: 1px solid var(--line-2); font-family: var(--font-mono); font-size: .74rem; color: var(--text);
  transition: border-color .2s, background .2s, color .2s;
}
a.chip:hover { border-color: var(--accent); color: var(--accent); background: rgba(0, 156, 214,.05); }

.app-row { display: grid; grid-template-columns: 260px 1fr; gap: 40px; padding: 40px 0; border-top: 1px solid var(--line); }
.app-row:last-child { border-bottom: 1px solid var(--line); }
.app-row .left { display: grid; gap: 14px; align-content: start; }
.app-row .left .icon { width: 52px; height: 52px; color: var(--accent); }
.app-row .right { display: grid; gap: 16px; }
.app-row .challenge { color: var(--muted); }
.app-row .challenge b { color: var(--text); font-weight: 600; }
.app-row .solution { font-size: 1.08rem; }
@media (max-width: 800px) { .app-row { grid-template-columns: 1fr; gap: 18px; } }

/* ---------- CTA ---------- */
.cta {
  position: relative; overflow: hidden; border-radius: 28px; border: 1px solid var(--line-2);
  padding: clamp(40px, 7vw, 88px); display: grid; grid-template-columns: 1.4fr auto; gap: 32px; align-items: end;
  background:
    radial-gradient(700px 300px at 100% 100%, rgba(0, 156, 214,.16), transparent 70%),
    linear-gradient(180deg, var(--surface), var(--bg-2));
}
.cta h2 { max-width: 16ch; }
.cta p { color: var(--muted); margin-top: 16px; max-width: 52ch; }
.cta .fiber-deco { position: absolute; right: -40px; top: -20px; width: 520px; opacity: .55; pointer-events: none; z-index: 0; }
.cta > *:not(.fiber-deco) { position: relative; z-index: 1; }
@media (max-width: 800px) { .cta { grid-template-columns: 1fr; } .cta .fiber-deco { width: 360px; } }

/* ---------- Page hero (inner pages) ---------- */
.page-hero { padding: 150px 0 clamp(48px, 6vw, 80px); position: relative; overflow: hidden; isolation: isolate; }
.page-hero::before {
  content: ""; position: absolute; inset: 0 -10% auto -10%; height: 600px; z-index: -1;
  background: radial-gradient(520px 300px at 85% 10%, rgba(0, 156, 214,.11), transparent 70%);
}
.page-hero .inner { display: grid; gap: 22px; max-width: 900px; }
.page-hero h1 { font-size: clamp(2.4rem, 5.4vw, 4.6rem); }
.crumbs { display: flex; gap: 8px; align-items: center; font-family: var(--font-mono); font-size: .75rem; color: var(--dim); letter-spacing: .04em; flex-wrap: wrap; }
.crumbs a:hover { color: var(--text); }
.crumbs span[aria-hidden] { opacity: .5; }

/* product hero */
.product-hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.product-hero .ill-frame { border: 1px solid var(--line); border-radius: 24px; overflow: hidden; background: radial-gradient(ellipse at 50% 100%, rgba(0, 156, 214,.08), transparent 70%), var(--bg-2); aspect-ratio: 16 / 10; }
.product-hero .ill-frame svg { width: 100%; height: 100%; }
.product-hero .sub { font-family: var(--font-mono); color: var(--accent); font-size: .9rem; }
@media (max-width: 900px) { .product-hero { grid-template-columns: 1fr; } }

.key-specs { display: flex; flex-wrap: wrap; gap: 10px; }
.key-spec { padding: 10px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-2); }
.key-spec b { display: block; font-family: var(--font-display); font-weight: 500; font-size: 1.05rem; }
.key-spec span { font-size: .78rem; color: var(--dim); }

.prose { display: grid; gap: 18px; color: var(--muted); font-size: 1.05rem; max-width: 64ch; }
.prose p:first-child { color: var(--text); font-size: 1.18rem; }

.list-check { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; }
.list-check li { padding: 14px 0; border-bottom: 1px solid var(--line); display: flex; gap: 12px; align-items: center; }
.list-check li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); flex: none; }

/* ---------- Tables ---------- */
.spec-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.spec-table th, .spec-table td { text-align: left; padding: 15px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec-table th { font-weight: 400; color: var(--muted); width: 42%; padding-right: 24px; }
.spec-table td { font-family: var(--font-mono); font-size: .88rem; }
.spec-table tr:first-child th, .spec-table tr:first-child td { border-top: 1px solid var(--line); }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.compare { width: 100%; border-collapse: collapse; min-width: 760px; font-size: .93rem; }
.compare th, .compare td { text-align: left; padding: 18px 20px; border-bottom: 1px solid var(--line); vertical-align: top; }
.compare thead th { font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; color: var(--dim); font-weight: 400; background: var(--bg-2); }
.compare tbody tr { transition: background .2s; }
.compare tbody tr:hover { background: rgba(255,255,255,.02); }
.compare tbody tr:last-child td { border-bottom: 0; }
.compare td:first-child a { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.compare td:first-child a:hover { color: var(--accent); }
.compare td { color: var(--muted); }

/* ---------- Downloads ---------- */
.doc-list { display: grid; gap: 10px; }
.doc {
  display: grid; grid-template-columns: 44px 1fr auto; gap: 16px; align-items: center;
  padding: 14px 16px 14px 14px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg-2);
  transition: border-color .2s, background .2s;
}
.doc:hover { border-color: var(--line-2); background: var(--surface); }
.doc .ficon { width: 44px; height: 44px; border-radius: 10px; display: grid; place-items: center; background: rgba(0, 156, 214,.06); border: 1px solid rgba(0, 156, 214,.2); color: var(--accent); font-family: var(--font-mono); font-size: .62rem; font-weight: 700; }
.doc .t { font-weight: 600; font-size: .96rem; }
.doc .f { font-family: var(--font-mono); font-size: .72rem; color: var(--dim); word-break: break-all; }
.doc .r { display: flex; gap: 10px; align-items: center; font-family: var(--font-mono); font-size: .75rem; color: var(--muted); }
.doc .dl { width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--line-2); display: grid; place-items: center; transition: background .2s, color .2s, border-color .2s; }
.doc:hover .dl { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.doc .dl svg { width: 16px; height: 16px; }
@media (max-width: 600px) { .doc { grid-template-columns: 40px 1fr; } .doc .r { grid-column: 2; } }

.filters { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; align-items: center; }
.seg { display: inline-flex; padding: 4px; border: 1px solid var(--line); border-radius: 999px; background: var(--bg-2); flex-wrap: wrap; }
.seg button { border: 0; background: transparent; padding: 7px 14px; border-radius: 999px; font-size: .85rem; color: var(--muted); cursor: pointer; transition: background .2s, color .2s; }
.seg button[aria-pressed="true"] { background: var(--surface-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--line-2); }
.select {
  appearance: none; -webkit-appearance: none; height: 42px; padding: 0 40px 0 16px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--bg-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238c98a6' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 14px center;
  color: var(--text); font: inherit; font-size: .88rem; cursor: pointer;
}
.empty { padding: 40px; text-align: center; color: var(--muted); border: 1px dashed var(--line-2); border-radius: 14px; display: none; }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 24px 0; display: flex; justify-content: space-between; gap: 24px; align-items: center;
  font-family: var(--font-display); font-size: 1.18rem; font-weight: 500; letter-spacing: -.01em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .pm { width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--line-2); flex: none; position: relative; transition: transform .3s var(--ease), border-color .2s; }
.faq summary .pm::before, .faq summary .pm::after { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 1.5px; background: var(--text); transform: translate(-50%, -50%); }
.faq summary .pm::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .3s var(--ease); }
.faq details[open] summary .pm { border-color: var(--accent); }
.faq details[open] summary .pm::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq .ans { padding: 0 56px 26px 0; color: var(--muted); max-width: 72ch; }

/* ---------- Notice ---------- */
.notice { border: 1px solid var(--line); border-left: 2px solid var(--accent); border-radius: 12px; padding: 20px 22px; color: var(--muted); font-size: .9rem; background: var(--bg-2); }
.notice b { color: var(--text); }
.notice.warn { border-left-color: #ffc857; }

/* ---------- Equipment ---------- */
.equip { display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(28px, 5vw, 64px); padding: clamp(40px, 5vw, 64px) 0; border-top: 1px solid var(--line); align-items: start; }
.equip .visual { border: 1px solid var(--line); border-radius: 22px; background: radial-gradient(ellipse at 50% 100%, rgba(0, 156, 214,.08), transparent 70%), var(--bg-2); aspect-ratio: 4 / 3; display: grid; place-items: center; overflow: hidden; }
.equip .visual svg { width: 86%; height: auto; }
@media (max-width: 900px) { .equip { grid-template-columns: 1fr; } }

/* ---------- Forms ---------- */
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .85rem; color: var(--muted); }
.field label .opt { color: var(--dim); }
.input, .textarea, .form .select {
  width: 100%; border: 1px solid var(--line); background: var(--bg-2); color: var(--text);
  border-radius: 12px; padding: 13px 14px; font: inherit; font-size: .95rem; transition: border-color .2s, box-shadow .2s;
}
.form .select { border-radius: 12px; height: auto; padding-right: 40px; }
.textarea { min-height: 140px; resize: vertical; }
.input:focus, .textarea:focus, .form .select:focus { outline: none; border-color: rgba(0, 156, 214,.6); box-shadow: 0 0 0 4px rgba(0, 156, 214,.1); }
.check { display: flex; gap: 12px; align-items: flex-start; font-size: .9rem; color: var(--muted); }
.check input { margin-top: 4px; accent-color: var(--accent); width: 16px; height: 16px; flex: none; }
.check a { color: var(--accent); }
.form-actions { grid-column: 1 / -1; display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.form-note { font-size: .82rem; color: var(--dim); }
.form-success { display: none; grid-column: 1 / -1; }
@media (max-width: 640px) { .form { grid-template-columns: 1fr; } }

.contact-card { padding: 30px 28px; display: grid; gap: 22px; }
.contact-card dl { margin: 0; display: grid; gap: 18px; }
.contact-card dt { font-family: var(--font-mono); font-size: .72rem; color: var(--dim); text-transform: uppercase; letter-spacing: .1em; margin-bottom: 4px; }
.contact-card dd { margin: 0; font-size: 1.02rem; }
.contact-card dd a:hover { color: var(--accent); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 72px 0 36px; margin-top: clamp(40px, 6vw, 80px); background: linear-gradient(180deg, transparent, rgba(0, 156, 214,.025)); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; }
.footer-grid h4 { font-family: var(--font-mono); font-size: .72rem; font-weight: 500; color: var(--dim); text-transform: uppercase; letter-spacing: .12em; margin-bottom: 18px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-grid a { color: var(--muted); font-size: .93rem; transition: color .2s; }
.footer-grid a:hover { color: var(--text); }
.footer-about p { color: var(--muted); font-size: .93rem; margin-top: 16px; max-width: 34ch; }
.footer-contact { color: var(--muted); font-size: .93rem; display: grid; gap: 10px; }
.footer-bottom { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: .8rem; color: var(--dim); }
.footer-bottom a:hover { color: var(--text); }
.footer-word { font-family: var(--font-display); font-weight: 700; font-size: clamp(3.2rem, 14vw, 13rem); letter-spacing: -.05em; line-height: .8; margin-top: 64px; color: transparent; -webkit-text-stroke: 1px var(--line-2); user-select: none; white-space: nowrap; overflow: hidden; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal-stagger > * { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal-stagger.in > * { opacity: 1; transform: none; }
.reveal-stagger.in > *:nth-child(2) { transition-delay: .06s; }
.reveal-stagger.in > *:nth-child(3) { transition-delay: .12s; }
.reveal-stagger.in > *:nth-child(4) { transition-delay: .18s; }
.reveal-stagger.in > *:nth-child(5) { transition-delay: .24s; }
.reveal-stagger.in > *:nth-child(6) { transition-delay: .30s; }
.reveal-stagger.in > *:nth-child(7) { transition-delay: .36s; }
.no-js .reveal, .no-js .reveal-stagger > * { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001s !important; animation-iteration-count: 1 !important; transition-duration: .001s !important; }
  .reveal, .reveal-stagger > * { opacity: 1; transform: none; }
}

.mt-s { margin-top: 16px; } .mt-m { margin-top: 32px; } .mt-l { margin-top: 56px; }
.row-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }