:root {
  --bg: #07131a;
  --bg-deep: #040b10;
  --surface: #0d2029;
  --surface-2: #112a35;
  --soft: #edf5f3;
  --white: #f8fbfa;
  --ink: #10252a;
  --muted: #61777b;
  --muted-dark: #a9bec0;
  --line: rgba(169, 212, 206, .18);
  --accent: #39e09b;
  --accent-strong: #18bd7b;
  --accent-soft: #c9f9e5;
  --warning: #f7c963;
  --danger: #ff6b6b;
  --shadow: 0 24px 80px rgba(0, 0, 0, .28);
  --radius: 24px;
  --radius-sm: 14px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

.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;
}
.skip-link {
  position: fixed;
  left: 16px;
  top: -100px;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--bg);
  font-weight: 800;
  transition: top .2s ease;
}
.skip-link:focus { top: 16px; }

.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.section { padding: 112px 0; }
.section-dark { background: var(--bg); color: var(--white); }
.section-soft { background: var(--soft); }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}
.site-header.scrolled {
  background: rgba(7, 19, 26, .86);
  border-color: var(--line);
  backdrop-filter: blur(18px);
}
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--white); font-weight: 900; letter-spacing: -.02em; font-size: 1.18rem; }
.brand-mark { width: 34px; height: 34px; fill: none; stroke: var(--accent); stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav > a:not(.button) { color: #d6e6e6; text-decoration: none; font-size: .94rem; font-weight: 650; }
.site-nav > a:not(.button):hover { color: var(--accent); }
.menu-button { display: none; width: 44px; height: 44px; border: 0; background: transparent; padding: 9px; }
.menu-button span:not(.sr-only) { display: block; height: 2px; margin: 5px 0; background: var(--white); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--accent);
  color: #052018;
  text-decoration: none;
  font-weight: 850;
  box-shadow: 0 10px 32px rgba(57, 224, 155, .18);
  transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}
.button:hover { transform: translateY(-2px); background: #57ebb0; box-shadow: 0 14px 38px rgba(57, 224, 155, .26); }
.button:focus-visible, a:focus-visible, summary:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible { outline: 3px solid var(--warning); outline-offset: 3px; }
.button-small { min-height: 42px; padding-inline: 18px; font-size: .9rem; }
.button-secondary { background: transparent; color: var(--ink); border-color: #99c7ba; box-shadow: none; }
.button-secondary:hover { background: #e3f6ef; }
.button-full { width: 100%; }
.text-link { color: var(--white); text-decoration: none; font-weight: 800; border-bottom: 1px solid rgba(255,255,255,.35); }
.text-link:hover { color: var(--accent); border-color: var(--accent); }

.hero {
  position: relative;
  min-height: 830px;
  padding: 150px 0 92px;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 75% 35%, rgba(42, 190, 144, .16), transparent 31%),
    radial-gradient(circle at 15% 75%, rgba(28, 91, 114, .24), transparent 36%),
    linear-gradient(145deg, var(--bg-deep), var(--bg) 62%, #0a2028);
}
.hero-grid-lines { position: absolute; inset: 0; opacity: .12; background-image: linear-gradient(rgba(255,255,255,.16) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.16) 1px, transparent 1px); background-size: 58px 58px; mask-image: linear-gradient(to bottom, black, transparent 90%); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 70px; }
.eyebrow, .kicker { display: inline-flex; align-items: center; gap: 10px; color: var(--accent-strong); text-transform: uppercase; letter-spacing: .12em; font-weight: 900; font-size: .76rem; }
.hero .eyebrow { color: var(--accent); }
.pulse-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(57,224,155,.7); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(57,224,155,0); } 100% { box-shadow: 0 0 0 0 rgba(57,224,155,0); } }
h1, h2, h3 { margin: 0; line-height: 1.12; letter-spacing: -.035em; }
h1 { max-width: 740px; margin-top: 22px; font-size: clamp(3rem, 6vw, 5.55rem); }
h2 { font-size: clamp(2.15rem, 4vw, 3.75rem); }
h3 { font-size: 1.36rem; }
.hero-lead { max-width: 680px; margin: 28px 0 0; color: #bcd0d1; font-size: clamp(1.05rem, 1.8vw, 1.26rem); }
.hero-actions { display: flex; align-items: center; gap: 24px; margin-top: 36px; }
.trust-list { display: flex; flex-wrap: wrap; gap: 16px 28px; padding: 0; margin: 38px 0 0; list-style: none; color: #a9bec0; font-size: .9rem; }
.trust-list li { position: relative; padding-left: 21px; }
.trust-list li::before { content: ""; position: absolute; left: 0; top: .54em; width: 8px; height: 8px; border: 2px solid var(--accent); border-radius: 50%; }

.product-stage { position: relative; min-height: 590px; display: grid; place-items: center; isolation: isolate; }
.signal-rings { position: absolute; width: 430px; aspect-ratio: 1; display: grid; place-items: center; z-index: -2; }
.signal-rings span { position: absolute; border: 1px solid rgba(57,224,155,.28); border-radius: 50%; animation: rings 4s ease-out infinite; }
.signal-rings span:nth-child(1) { width: 50%; height: 50%; }
.signal-rings span:nth-child(2) { width: 72%; height: 72%; animation-delay: 1.2s; }
.signal-rings span:nth-child(3) { width: 94%; height: 94%; animation-delay: 2.4s; }
@keyframes rings { 0%, 25% { opacity: .15; transform: scale(.9); } 65% { opacity: .48; } 100% { opacity: 0; transform: scale(1.08); } }
.device-shadow { position: absolute; width: 310px; height: 70px; top: 75%; border-radius: 50%; background: rgba(0,0,0,.5); filter: blur(25px); z-index: -1; }
.device { position: relative; width: min(320px, 77vw); height: 400px; padding: 15px; border-radius: 44px; background: linear-gradient(135deg, #2b4048, #0a141a 45%, #20343d); box-shadow: inset 1px 1px 0 rgba(255,255,255,.16), inset -1px -1px 0 rgba(0,0,0,.7), var(--shadow); transform: perspective(900px) rotateY(-7deg) rotateX(3deg); }
.device::after { content: ""; position: absolute; inset: 5px; border: 1px solid rgba(255,255,255,.08); border-radius: 39px; pointer-events: none; }
.device-top { display: flex; align-items: center; justify-content: space-between; padding: 7px 11px 13px; }
.device-logo { display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid rgba(57,224,155,.45); border-radius: 10px; color: var(--accent); font-weight: 900; font-size: .73rem; }
.device-vent { width: 40px; height: 8px; border-top: 2px solid #65777d; border-bottom: 2px solid #65777d; opacity: .5; }
.device-face { height: 295px; padding: 26px 26px 22px; border-radius: 31px; background: linear-gradient(145deg, #101c22, #081015); border: 1px solid rgba(255,255,255,.06); box-shadow: inset 0 12px 30px rgba(0,0,0,.32); }
.device-title { color: #819398; font-size: .61rem; letter-spacing: .23em; font-weight: 800; text-align: center; }
.warning-lamp-wrap { display: grid; place-items: center; margin-top: 27px; }
.warning-lamp { width: 88px; height: 88px; border-radius: 50%; background: var(--accent); border: 12px solid #153127; box-shadow: 0 0 30px rgba(57,224,155,.68), inset 0 0 18px rgba(255,255,255,.58), 0 0 0 5px rgba(255,255,255,.04); }
.warning-lamp.is-scanning { animation: statusBlink 2.1s ease-in-out infinite; }
.warning-lamp.is-detected { background: var(--warning); border-color: #4a3b19; box-shadow: 0 0 38px rgba(247,201,99,.9), inset 0 0 18px rgba(255,255,255,.65), 0 0 0 7px rgba(247,201,99,.08); animation: alertPulse .75s ease-in-out infinite alternate; }
@keyframes statusBlink { 0%, 100% { opacity: .27; box-shadow: 0 0 8px rgba(57,224,155,.2); } 50% { opacity: 1; box-shadow: 0 0 30px rgba(57,224,155,.75); } }
@keyframes alertPulse { to { transform: scale(1.035); filter: brightness(1.08); } }
.alert-hardware { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: center; margin-top: 29px; }
.speaker-grille { display: grid; grid-template-columns: repeat(4, 7px); justify-content: center; gap: 7px; padding: 10px; }
.speaker-grille span { width: 7px; height: 7px; border-radius: 50%; background: #52666d; box-shadow: inset 0 1px 2px rgba(0,0,0,.65); }
.speaker-grille.is-alerting span { animation: speakerFlash .65s ease-in-out infinite alternate; }
.speaker-grille.is-alerting span:nth-child(2n) { animation-delay: .16s; }
@keyframes speakerFlash { to { background: var(--warning); box-shadow: 0 0 8px rgba(247,201,99,.65); } }
.vibration-unit { position: relative; display: flex; align-items: center; justify-content: center; min-height: 52px; color: #60747a; }
.vibration-unit svg { width: 42px; height: 42px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.vibration-wave { width: 8px; height: 28px; border: solid currentColor; border-width: 0 2px; opacity: .5; }
.vibration-wave.left { border-right: 0; border-radius: 100% 0 0 100%; }
.vibration-wave.right { border-left: 0; border-radius: 0 100% 100% 0; }
.vibration-unit.is-alerting { color: var(--warning); animation: vibrate .16s linear infinite; }
@keyframes vibrate { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-2px) rotate(-1deg); } 75% { transform: translateX(2px) rotate(1deg); } }
.hardware-labels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px; margin-top: 8px; color: #71858a; font-size: .57rem; text-align: center; text-transform: uppercase; letter-spacing: .08em; }
.device-base { width: 56%; height: 7px; margin: 20px auto 0; border-radius: 7px; background: #050a0d; box-shadow: inset 0 1px 0 rgba(255,255,255,.08); }
.demo-status { position: absolute; bottom: 58px; display: flex; align-items: center; gap: 9px; max-width: 330px; padding: 9px 13px; border: 1px solid rgba(255,255,255,.12); border-radius: 999px; background: rgba(7,19,26,.78); color: #c6d6d7; backdrop-filter: blur(10px); font-size: .72rem; }
.demo-status-dot { width: 8px; height: 8px; flex: 0 0 auto; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px rgba(57,224,155,.7); }
.demo-toggle { position: absolute; bottom: 13px; padding: 10px 16px; border: 1px solid rgba(255,255,255,.18); border-radius: 999px; background: rgba(10,25,32,.75); color: #d6e6e6; backdrop-filter: blur(10px); }
.demo-toggle:hover { border-color: var(--accent); color: var(--accent); }
.demo-note { position: absolute; bottom: -24px; margin: 0; color: #71858a; font-size: .72rem; }

.proof-strip { background: #0b1b23; border-top: 1px solid rgba(255,255,255,.06); border-bottom: 1px solid rgba(255,255,255,.06); color: #94aaad; }
.proof-items { min-height: 92px; display: flex; justify-content: space-between; align-items: center; gap: 25px; overflow-x: auto; scrollbar-width: none; text-transform: uppercase; letter-spacing: .1em; font-size: .72rem; font-weight: 850; }
.proof-items::-webkit-scrollbar { display: none; }
.proof-items span { white-space: nowrap; }

.split-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: start; }
.align-end { align-items: end; }
.section-heading h2, .center-heading h2 { margin-top: 15px; }
.section-copy { padding-top: 12px; color: var(--muted); font-size: 1.08rem; }
.section-copy p { margin: 0 0 20px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 70px; }
.feature-card { padding: 32px; border: 1px solid #dce8e5; border-radius: var(--radius); background: #fff; box-shadow: 0 18px 55px rgba(23,54,58,.06); }
.feature-icon { display: grid; place-items: center; width: 52px; height: 52px; margin-bottom: 24px; border-radius: 16px; background: var(--accent-soft); }
.feature-icon svg { width: 28px; height: 28px; fill: none; stroke: #138d61; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.feature-card h3 { margin-bottom: 14px; }
.feature-card p { margin: 0; color: var(--muted); }

.center-heading { max-width: 760px; margin: 0 auto; text-align: center; }
.center-heading p { margin: 23px auto 0; color: var(--muted-dark); font-size: 1.06rem; }
.section-dark .kicker { color: var(--accent); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; padding: 0; margin: 70px 0 0; list-style: none; border-top: 1px solid var(--line); }
.step { position: relative; padding: 38px 40px 0 0; }
.step:not(:last-child)::after { content: ""; position: absolute; top: -5px; right: 36px; width: 9px; height: 9px; border: 2px solid var(--accent); border-radius: 50%; background: var(--bg); }
.step-number { display: block; margin-bottom: 22px; color: var(--accent); font-size: .76rem; font-weight: 900; letter-spacing: .14em; }
.step p { color: var(--muted-dark); }

.variant-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; max-width: 940px; margin: 66px auto 0; }
.variant-card { position: relative; padding: 38px; border: 1px solid #d7e5e0; border-radius: 30px; background: #fff; box-shadow: 0 18px 60px rgba(20,50,55,.08); }
.variant-card.featured { border-color: #8de8c1; box-shadow: 0 26px 75px rgba(24,150,103,.12); }
.variant-tag { position: absolute; right: 26px; top: 26px; padding: 6px 12px; border-radius: 999px; background: var(--soft); color: #4c676b; text-transform: uppercase; letter-spacing: .12em; font-size: .65rem; font-weight: 900; }
.featured .variant-tag { background: var(--accent-soft); color: #08734c; }
.variant-icon { display: grid; place-items: center; width: 120px; height: 120px; margin-bottom: 23px; border-radius: 30px; background: linear-gradient(145deg, #f0f6f4, #e0ece9); }
.variant-icon svg { width: 80px; height: 80px; fill: none; stroke: #76918b; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.featured .variant-icon { background: linear-gradient(145deg, #dff9ef, #c3efde); }
.featured .variant-icon svg { stroke: #159467; }
.variant-card > p { color: var(--muted); }
.variant-card ul { padding: 0; margin: 26px 0 32px; list-style: none; }
.variant-card li { position: relative; padding: 9px 0 9px 28px; border-bottom: 1px solid #e8efed; }
.variant-card li::before { content: "✓"; position: absolute; left: 0; color: var(--accent-strong); font-weight: 900; }
.price-note { margin: 30px auto 0; text-align: center; color: var(--muted); }

.section-intro { margin: 0; color: var(--muted); font-size: 1.08rem; }
.usecase-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 70px; overflow: hidden; border: 1px solid #cedfda; border-radius: var(--radius); background: #cedfda; }
.usecase { min-height: 235px; padding: 32px; background: #f8fbfa; }
.usecase > span { color: #16996a; font-size: .7rem; font-weight: 900; letter-spacing: .12em; }
.usecase h3 { margin-top: 34px; }
.usecase p { margin-bottom: 0; color: var(--muted); }

.responsibility { background: #0a1b22; color: var(--white); }
.responsibility-grid { display: grid; grid-template-columns: 280px 1fr; gap: 90px; align-items: center; max-width: 950px; }
.responsibility-icon { display: grid; place-items: center; aspect-ratio: 1; border: 1px solid rgba(57,224,155,.2); border-radius: 50%; background: radial-gradient(circle, rgba(57,224,155,.12), transparent 65%); }
.responsibility-icon svg { width: 130px; fill: none; stroke: var(--accent); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.responsibility h2 { margin-top: 14px; }
.responsibility p { color: var(--muted-dark); }

.faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.accordion details { border-bottom: 1px solid #dbe7e4; }
.accordion summary { position: relative; padding: 24px 50px 24px 0; list-style: none; font-weight: 800; font-size: 1.05rem; cursor: pointer; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: "+"; position: absolute; right: 4px; top: 20px; display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; background: var(--soft); color: #188d65; font-size: 1.35rem; transition: transform .2s ease; }
.accordion details[open] summary::after { transform: rotate(45deg); }
.accordion details p { margin: -3px 45px 23px 0; color: var(--muted); }

.contact-section { padding: 112px 0; background: linear-gradient(145deg, #061219, #0a222b); color: var(--white); }
.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; align-items: start; }
.contact-copy h2 { margin-top: 15px; }
.contact-copy > p { color: var(--muted-dark); font-size: 1.06rem; }
.contact-points { margin-top: 42px; display: grid; gap: 22px; }
.contact-points div { display: flex; flex-direction: column; padding-left: 18px; border-left: 2px solid var(--accent); }
.contact-points span { color: #94aaad; font-size: .9rem; }
.contact-form { padding: 38px; border: 1px solid rgba(255,255,255,.1); border-radius: 28px; background: rgba(255,255,255,.045); box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.contact-form label, .contact-form legend { color: #dce9e8; font-size: .86rem; font-weight: 750; }
.contact-form input:not([type="radio"]):not([type="checkbox"]), .contact-form select, .contact-form textarea { width: 100%; margin-top: 8px; border: 1px solid rgba(255,255,255,.14); border-radius: 12px; background: #0b1b22; color: var(--white); padding: 13px 14px; }
.contact-form input, .contact-form select { min-height: 49px; }
.contact-form textarea { resize: vertical; }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: #71858a; }
.contact-form label { display: block; margin-bottom: 18px; }
.contact-form fieldset { display: flex; flex-wrap: wrap; gap: 18px; padding: 0; margin: 0 0 18px; border: 0; }
.contact-form legend { width: 100%; margin-bottom: 8px; }
.contact-form .radio { display: inline-flex; align-items: center; gap: 7px; margin: 0; color: #a9bec0; font-weight: 600; }
.contact-form .checkbox { display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: start; color: #a9bec0; font-weight: 500; line-height: 1.45; }
.contact-form .checkbox input { margin-top: 4px; }
.contact-form .checkbox a { color: var(--accent); }
.form-hint, .form-status { color: #7f9598; font-size: .77rem; }
.form-status { min-height: 1.4em; margin-bottom: 0; color: var(--warning); font-weight: 700; }

.site-footer { padding: 70px 0 25px; background: #03090d; color: #92a7a9; }
.footer-grid { display: grid; grid-template-columns: 1.8fr repeat(3, 1fr); gap: 55px; }
.footer-brand { margin-bottom: 18px; }
.footer-grid > div { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.footer-grid strong { margin-bottom: 7px; color: var(--white); }
.footer-grid a { text-decoration: none; }
.footer-grid a:hover { color: var(--accent); }
.footer-grid p { max-width: 280px; margin: 0; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 58px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.08); font-size: .8rem; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

.legal-page { min-height: 100vh; background: var(--soft); color: var(--ink); }
.legal-header { padding: 24px 0; background: var(--bg); }
.legal-main { padding: 80px 0; }
.legal-content { max-width: 800px; padding: 45px; border-radius: var(--radius); background: #fff; box-shadow: 0 20px 60px rgba(20,50,55,.08); }
.legal-content h1 { color: var(--ink); font-size: clamp(2.4rem, 5vw, 4rem); }
.legal-content h2 { margin-top: 38px; font-size: 1.5rem; }
.legal-content .notice { margin: 28px 0; padding: 18px; border-left: 4px solid var(--warning); background: #fff8e5; }
.legal-content a { color: #08734c; }

@media (max-width: 980px) {
  .site-nav { position: fixed; inset: 76px 16px auto; display: grid; gap: 0; padding: 15px; border: 1px solid var(--line); border-radius: 18px; background: rgba(7,19,26,.97); box-shadow: var(--shadow); transform: translateY(-12px); opacity: 0; visibility: hidden; transition: .2s ease; }
  .site-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .site-nav > a { padding: 13px 12px; }
  .site-nav .button { margin-top: 8px; }
  .menu-button { display: block; }
  .menu-button[aria-expanded="true"] span:nth-child(2) { transform: translateY(7px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:nth-child(3) { opacity: 0; }
  .menu-button[aria-expanded="true"] span:nth-child(4) { transform: translateY(-7px) rotate(-45deg); }
  .hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; gap: 55px; }
  .hero-copy { text-align: center; }
  .hero-copy h1, .hero-lead { margin-inline: auto; }
  .hero-actions, .trust-list { justify-content: center; }
  .product-stage { min-height: 570px; }
  .split-grid, .faq-grid, .contact-grid { grid-template-columns: 1fr; gap: 42px; }
  .feature-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; border: 0; }
  .step { padding: 30px 0; border-top: 1px solid var(--line); }
  .step:not(:last-child)::after { display: none; }
  .usecase-grid { grid-template-columns: repeat(2, 1fr); }
  .responsibility-grid { grid-template-columns: 210px 1fr; gap: 50px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .section, .contact-section { padding: 82px 0; }
  .hero { padding: 126px 0 75px; }
  h1 { font-size: clamp(2.55rem, 14vw, 4.1rem); }
  h2 { font-size: clamp(2rem, 10vw, 3rem); }
  .hero-actions { flex-direction: column; }
  .trust-list { display: grid; gap: 12px; text-align: left; }
  .product-stage { min-height: 535px; }
  .signal-rings { width: 330px; }
  .device { height: 365px; }
  .device-face { height: 264px; padding: 26px 22px; }
  .warning-lamp-wrap { margin-top: 22px; }
  .demo-status { bottom: 48px; max-width: 290px; }
  .demo-toggle { bottom: 0; }
  .demo-note { bottom: -28px; }
  .proof-items { justify-content: flex-start; }
  .variant-grid { grid-template-columns: 1fr; }
  .variant-card { padding: 28px; }
  .usecase-grid { grid-template-columns: 1fr; }
  .responsibility-grid { grid-template-columns: 1fr; text-align: center; }
  .responsibility-icon { width: 190px; margin: 0 auto; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .contact-form { padding: 25px; }
  .footer-grid { grid-template-columns: 1fr; gap: 35px; }
  .footer-bottom { flex-direction: column; }
  .legal-content { padding: 28px; }
}

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


/* Cloudflare contact form */
.honeypot {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
.turnstile-wrap { min-height: 70px; margin: 4px 0 18px; }
.contact-form button:disabled { cursor: wait; opacity: .7; transform: none; }
.form-status[data-type="success"] { color: var(--accent); }
.form-status[data-type="error"] { color: #ff9f9f; }
.form-status[data-type="pending"] { color: #c5d5d6; }