:root {
  color-scheme: light;
  --ink: #0f172a;
  --muted: #5f6f87;
  --soft: #eef5f3;
  --line: rgba(22, 42, 64, 0.14);
  --panel: #ffffff;
  --teal: #0f766e;
  --teal-dark: #0b4f4a;
  --mint: #b8efe4;
  --coral: #ef6f61;
  --amber: #d99a2b;
  --sky: #79b7ff;
  --shadow: 0 24px 70px rgba(18, 32, 52, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: #f6f8f8;
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

.prototype-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0 64px;
}

.hero-section {
  position: relative;
  min-height: 720px;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(340px, 0.98fr);
  gap: 32px;
  overflow: hidden;
  border-radius: 28px;
  background:
    radial-gradient(circle at 72% 28%, rgba(121, 183, 255, 0.42), transparent 28%),
    radial-gradient(circle at 55% 80%, rgba(184, 239, 228, 0.28), transparent 34%),
    linear-gradient(135deg, #071a21 0%, #0d2e31 46%, #10233f 100%);
  color: #f8fbfc;
  box-shadow: var(--shadow);
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, #000, transparent 86%);
  pointer-events: none;
}

.hero-copy,
.hero-visual {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.hero-copy {
  display: grid;
  grid-template-rows: auto 1fr;
  padding: 28px;
}

.topline {
  display: grid;
  grid-template-columns: 1fr;
  align-items: start;
  justify-content: start;
  gap: 16px;
  min-width: 0;
}

.brand,
.nav-links {
  display: flex;
  align-items: center;
}

.brand {
  flex: 0 0 auto;
  gap: 10px;
  font-weight: 850;
  letter-spacing: 0;
}

.brand-glyph {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, #1fb6a6, #85d6ff);
  color: #052626;
}

.nav-links {
  width: min(100%, 520px);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
  min-height: 46px;
  padding: 5px;
  max-width: 100%;
  overflow: visible;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(248, 251, 252, 0.82);
  font-size: 13px;
  font-weight: 750;
  backdrop-filter: blur(18px);
  scrollbar-width: none;
}

.nav-links::-webkit-scrollbar {
  display: none;
}

.nav-links a {
  min-width: 0;
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  border-radius: 999px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.nav-links a:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  transform: translateY(-1px);
}

.nav-links .nav-cta {
  background: #f8fbfc;
  color: #0d2e31;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.16);
}

.nav-links .nav-cta:hover {
  background: #ffffff;
  color: #0d2e31;
}

.hero-content {
  align-self: center;
  min-width: 0;
  max-width: 620px;
  padding: 58px 0 24px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--mint);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(46px, 7vw, 82px);
  line-height: 0.95;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.hero-lead {
  max-width: 590px;
  margin-bottom: 28px;
  color: rgba(248, 251, 252, 0.78);
  font-size: 19px;
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.primary-cta,
.ghost-cta {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-radius: 12px;
  font-weight: 850;
}

.primary-cta {
  background: #f8fbfc;
  color: #0d2e31;
}

.ghost-cta {
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #f8fbfc;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
}

.hero-visual {
  min-height: 640px;
  display: grid;
  place-items: center;
}

.lab-device {
  position: relative;
  width: min(430px, 80vw);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(255, 255, 255, 0.2) 0 6%, transparent 7%),
    conic-gradient(from 120deg, rgba(121, 183, 255, 0.16), rgba(184, 239, 228, 0.54), rgba(239, 111, 97, 0.26), rgba(121, 183, 255, 0.16));
  box-shadow: inset 0 0 90px rgba(255, 255, 255, 0.12), 0 30px 90px rgba(0, 0, 0, 0.22);
  animation: float-device 7s ease-in-out infinite;
}

.lab-device::before,
.lab-device::after,
.ring {
  content: "";
  position: absolute;
  border-radius: 50%;
}

.lab-device::before {
  inset: 11%;
  border: 1px solid rgba(255, 255, 255, 0.26);
}

.lab-device::after {
  inset: 26%;
  background: rgba(5, 27, 34, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(18px);
}

.ring {
  inset: 6%;
  border: 1px dashed rgba(255, 255, 255, 0.28);
  animation: rotate 18s linear infinite;
}

.ring-two {
  inset: 18%;
  animation-duration: 13s;
  animation-direction: reverse;
}

.scan-line {
  position: absolute;
  width: 68%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--mint), transparent);
  box-shadow: 0 0 18px rgba(184, 239, 228, 0.75);
  animation: scan 3.2s ease-in-out infinite;
}

.center-chip {
  position: relative;
  z-index: 2;
  width: 152px;
  height: 152px;
  display: grid;
  place-items: center;
  border-radius: 36px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(214, 252, 244, 0.88));
  color: #072a2b;
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.2);
  font-weight: 900;
}

.center-chip span {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--teal), var(--sky));
}

.metric-dot {
  position: absolute;
  z-index: 3;
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: var(--mint);
  box-shadow: 0 0 24px rgba(184, 239, 228, 0.82);
}

.dot-one {
  top: 18%;
  right: 25%;
}

.dot-two {
  left: 18%;
  bottom: 28%;
  background: var(--coral);
  box-shadow: 0 0 24px rgba(239, 111, 97, 0.7);
}

.dot-three {
  right: 17%;
  bottom: 22%;
  background: var(--amber);
}

.orbital-card {
  position: absolute;
  z-index: 4;
  display: grid;
  gap: 4px;
  min-width: 164px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.18);
}

.orbital-card span,
.orbital-card small {
  color: rgba(248, 251, 252, 0.72);
}

.orbital-card strong {
  font-size: 24px;
}

.card-upload {
  top: 27%;
  left: 4%;
  animation: card-float-a 6.5s ease-in-out infinite;
}

.card-alert {
  right: 8%;
  bottom: 23%;
  animation: card-float-b 7s ease-in-out infinite;
}

.trust-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0 66px;
}

.trust-row article,
.flow-card,
.privacy-panel,
.privacy-cards article,
.phone-frame {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.trust-row article {
  min-height: 150px;
  padding: 22px;
  border-radius: 20px;
}

.trust-row span {
  color: var(--teal);
  font-weight: 900;
}

.trust-row strong {
  display: block;
  margin: 10px 0 6px;
  font-size: 22px;
}

.trust-row p,
.flow-card p,
.preview-copy p,
.privacy-panel p,
.privacy-cards span {
  color: var(--muted);
}

.flow-section,
.demo-section,
.preview-section,
.audience-section,
.privacy-section {
  margin: 72px 0;
}

.flow-section {
  position: relative;
  overflow: hidden;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    radial-gradient(circle at 16% 8%, rgba(184, 239, 228, 0.72), transparent 26%),
    linear-gradient(135deg, #f7faf9, #eef4f3);
  box-shadow: var(--shadow);
}

.flow-section::before {
  content: "";
  position: absolute;
  left: 64px;
  right: 64px;
  bottom: 176px;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(15, 118, 110, 0.34), rgba(121, 183, 255, 0.34), transparent);
  pointer-events: none;
}

.flow-head {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(260px, 0.54fr);
  column-gap: 34px;
  align-items: end;
  margin-bottom: 24px;
}

.flow-head .eyebrow {
  grid-column: 1 / -1;
  color: var(--teal);
}

.flow-head p:last-child {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 16px;
}

.flow-section h2,
.preview-copy h2,
.privacy-panel h2 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1;
  letter-spacing: 0;
}

.flow-section h2 {
  max-width: 700px;
  margin-bottom: 0;
  font-size: clamp(34px, 4.5vw, 58px);
}

.flow-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.flow-card {
  position: relative;
  min-height: 230px;
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 22px;
  border-radius: 22px;
  background:
    linear-gradient(#ffffff, #ffffff) padding-box,
    linear-gradient(135deg, rgba(15, 118, 110, 0.22), rgba(121, 183, 255, 0.22)) border-box;
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.flow-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 28px 70px rgba(18, 32, 52, 0.18);
}

.flow-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 15px;
  background: linear-gradient(135deg, #e8f6f2, #d9f0ff);
  color: var(--teal-dark);
  font-weight: 950;
  box-shadow: inset 0 0 0 1px rgba(15, 118, 110, 0.08);
}

.flow-card h3,
.summary-card h3 {
  margin-bottom: 8px;
  font-size: 24px;
}

.flow-card p {
  margin-bottom: 8px;
}

.flow-tag {
  align-self: end;
  width: fit-content;
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  background: #eef8f6;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 850;
}

.preview-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1fr);
  gap: 44px;
  align-items: center;
}

.phone-frame {
  width: min(390px, 100%);
  justify-self: center;
  padding: 12px;
  border-radius: 38px;
  background: #101923;
}

.phone-top {
  width: 118px;
  height: 22px;
  margin: 2px auto 12px;
  border-radius: 999px;
  background: #050a10;
}

.phone-screen {
  min-height: 640px;
  overflow: hidden;
  border-radius: 28px;
  background: linear-gradient(#f8fbfc, #eef6f4);
  padding: 18px;
}

.mini-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.mini-header span {
  color: var(--muted);
}

.summary-card {
  padding: 18px;
  border: 1px solid rgba(15, 118, 110, 0.18);
  border-radius: 20px;
  background: rgba(235, 250, 247, 0.92);
}

.status-pill,
.signal-list span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: #fff1df;
  color: #8a4b08;
  font-size: 13px;
  font-weight: 850;
}

.summary-card ul {
  margin: 12px 0 0;
  padding-left: 18px;
  color: #314156;
}

.summary-card li + li {
  margin-top: 10px;
}

.trend-strip {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.trend-strip span {
  height: 74px;
  border-radius: 18px;
  background: linear-gradient(90deg, rgba(15, 118, 110, 0.14), rgba(121, 183, 255, 0.2));
  transform-origin: left center;
  animation: pulse-row 2.4s ease-in-out infinite;
}

.trend-strip span:nth-child(2) {
  width: 86%;
  animation-delay: 160ms;
}

.trend-strip span:nth-child(3) {
  width: 72%;
  animation-delay: 320ms;
}

.trend-strip span:nth-child(4) {
  width: 91%;
  animation-delay: 480ms;
}

.signal-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.signal-list span {
  background: var(--soft);
  color: var(--teal-dark);
}

.demo-section {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 0.72fr);
  gap: 18px;
  align-items: stretch;
}

.demo-copy,
.demo-card,
.audience-grid article,
.price-card,
.faq-item,
.final-cta {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.demo-copy,
.demo-card {
  border-radius: 26px;
  padding: 28px;
}

.demo-copy {
  min-width: 0;
  background:
    radial-gradient(circle at 14% 10%, rgba(184, 239, 228, 0.72), transparent 28%),
    linear-gradient(135deg, #ffffff, #f1f8f6);
}

.demo-copy h2,
.section-title h2,
.final-cta h2 {
  max-width: 760px;
  margin-bottom: 16px;
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1;
  letter-spacing: 0;
}

.demo-copy p,
.section-title p,
.audience-grid p,
.price-card p,
.faq-list p {
  color: var(--muted);
}

.demo-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.demo-tab {
  min-height: 40px;
  border: 1px solid rgba(15, 118, 110, 0.16);
  border-radius: 999px;
  background: #eef8f6;
  color: var(--teal-dark);
  padding: 0 14px;
  font: inherit;
  font-weight: 850;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.demo-tab:hover,
.demo-tab.active {
  background: var(--teal);
  color: #fff;
  transform: translateY(-1px);
}

.demo-card {
  position: relative;
  overflow: hidden;
  min-width: 0;
  background:
    radial-gradient(circle at 92% 16%, rgba(121, 183, 255, 0.24), transparent 26%),
    linear-gradient(145deg, #102b34, #071a21);
  color: #f8fbfc;
}

.demo-card::before {
  content: "";
  position: absolute;
  inset: auto -20% -42% 20%;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 239, 228, 0.18), transparent 60%);
  pointer-events: none;
}

.demo-card-head {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 26px;
  color: rgba(248, 251, 252, 0.72);
}

.demo-card h3,
.demo-value,
.demo-card p,
.demo-linked {
  position: relative;
  z-index: 1;
}

.demo-card h3 {
  margin-bottom: 8px;
  font-size: 28px;
}

.demo-value {
  display: block;
  margin-bottom: 16px;
  font-size: clamp(38px, 5vw, 58px);
  line-height: 1;
}

.demo-card p {
  color: rgba(248, 251, 252, 0.78);
}

.demo-linked {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.demo-linked span {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(248, 251, 252, 0.9);
  font-size: 13px;
  font-weight: 850;
}

.audience-section,
.pricing-section,
.faq-section {
  margin: 72px 0;
}

.section-title {
  margin-bottom: 22px;
}

.audience-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.audience-grid article,
.price-card {
  min-height: 210px;
  border-radius: 24px;
  padding: 24px;
}

.audience-grid strong,
.price-card strong {
  display: block;
  margin-bottom: 10px;
  font-size: 24px;
  line-height: 1.08;
}

.price-card span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.price-card.featured {
  background:
    radial-gradient(circle at 82% 12%, rgba(184, 239, 228, 0.5), transparent 28%),
    linear-gradient(135deg, #0d2e31, #10233f);
  color: #f8fbfc;
}

.price-card.featured span,
.price-card.featured p {
  color: rgba(248, 251, 252, 0.76);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  overflow: hidden;
  border-radius: 18px;
}

.faq-question {
  width: 100%;
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 0;
  padding: 18px 20px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  text-align: left;
}

.faq-question:focus-visible {
  outline: 3px solid rgba(15, 118, 110, 0.22);
  outline-offset: -3px;
}

.faq-arrow {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  position: relative;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.1);
  transition: transform 240ms ease, background 240ms ease;
}

.faq-arrow::before,
.faq-arrow::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 2px;
  border-radius: 999px;
  background: var(--teal-dark);
  transform: translate(-50%, -50%);
}

.faq-arrow::after {
  transform: translate(-50%, -50%) rotate(90deg);
  transition: opacity 220ms ease;
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
  background: rgba(15, 118, 110, 0.16);
}

.faq-item.open .faq-arrow::after {
  opacity: 0;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(-6px);
  transition: max-height 340ms ease, opacity 240ms ease, transform 240ms ease;
}

.faq-item.open .faq-answer {
  opacity: 1;
  transform: translateY(0);
}

.faq-list p {
  margin: 0;
  padding: 0 20px 20px;
}

.final-cta {
  overflow: hidden;
  border-radius: 28px;
  padding: 34px;
  background:
    radial-gradient(circle at 90% 20%, rgba(121, 183, 255, 0.32), transparent 26%),
    linear-gradient(135deg, #071a21, #0d2e31);
  color: #f8fbfc;
}

.final-cta .hero-actions {
  margin-top: 24px;
}

.privacy-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.76fr);
  gap: 18px;
  align-items: stretch;
}

.privacy-panel,
.privacy-cards article {
  border-radius: 24px;
}

.privacy-panel {
  padding: 30px;
}

.privacy-cards {
  display: grid;
  gap: 14px;
}

.privacy-cards article {
  display: grid;
  gap: 8px;
  padding: 20px;
}

.privacy-cards strong {
  font-size: 19px;
}

.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 560ms ease, transform 560ms ease;
}

.js-ready .reveal {
  opacity: 0;
  transform: translateY(18px);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes rotate {
  to {
    transform: rotate(360deg);
  }
}

@keyframes scan {
  0%,
  100% {
    transform: translateY(-120px);
    opacity: 0.15;
  }
  50% {
    transform: translateY(120px);
    opacity: 1;
  }
}

@keyframes float-device {
  0%,
  100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-14px) scale(1.02);
  }
}

@keyframes card-float-a {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(12px, -12px, 0);
  }
}

@keyframes card-float-b {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(-10px, 12px, 0);
  }
}

@keyframes pulse-row {
  0%,
  100% {
    transform: scaleX(0.94);
    opacity: 0.72;
  }
  50% {
    transform: scaleX(1);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}

@media (max-width: 1040px) {
  .brand {
    gap: 8px;
  }

  .brand-glyph {
    width: 36px;
    height: 36px;
  }

  .nav-links {
    width: min(100%, 500px);
    gap: 4px;
    font-size: 12px;
  }

  .nav-links a {
    padding: 0 8px;
  }
}

@media (max-width: 860px) {
  .prototype-shell {
    width: min(100% - 20px, 640px);
    padding-top: 10px;
  }

  .hero-section,
  .demo-section,
  .preview-section,
  .privacy-section {
    grid-template-columns: 1fr;
  }

  .hero-section {
    min-height: auto;
    border-radius: 22px;
  }

  .hero-copy {
    padding: 20px;
  }

  .topline {
    align-items: center;
  }

  .nav-links {
    width: 100%;
    max-width: 100%;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    min-height: 40px;
    padding: 4px;
    overflow: visible;
    scrollbar-width: none;
    border-radius: 18px;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-links a {
    min-height: 30px;
    padding: 0 5px;
    white-space: nowrap;
    font-size: 11px;
  }

  .hero-content {
    padding: 48px 0 8px;
  }

  h1 {
    font-size: clamp(36px, 11.5vw, 56px);
  }

  .hero-lead {
    max-width: 100%;
    font-size: 17px;
  }

  .hero-actions a {
    width: 100%;
  }

  .hero-visual {
    min-height: 430px;
    padding-bottom: 30px;
  }

  .lab-device {
    width: min(330px, 82vw);
  }

  .orbital-card {
    min-width: 138px;
    padding: 13px;
  }

  .card-upload {
    top: 8%;
    left: 8%;
  }

  .card-alert {
    right: 8%;
    bottom: 8%;
  }

  .trust-row,
  .flow-grid {
    grid-template-columns: 1fr;
  }

  .flow-section {
    padding: 22px;
    border-radius: 22px;
  }

  .flow-section::before {
    display: none;
  }

  .flow-head {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .flow-section h2 {
    font-size: clamp(34px, 10vw, 48px);
  }

  .flow-card {
    min-height: 0;
  }

  .flow-section,
  .demo-section,
  .preview-section,
  .audience-section,
  .pricing-section,
  .faq-section,
  .privacy-section {
    margin: 52px 0;
  }

  .demo-copy,
  .demo-card,
  .privacy-panel,
  .final-cta {
    padding: 22px;
    border-radius: 22px;
  }

  .audience-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .audience-grid article,
  .price-card {
    min-height: 0;
  }

  .demo-copy h2,
  .section-title h2,
  .final-cta h2 {
    font-size: clamp(32px, 9vw, 46px);
  }

  .demo-value {
    font-size: clamp(36px, 11vw, 52px);
  }

  .phone-screen {
    min-height: 560px;
  }
}

@media (max-width: 760px) {
  html,
  body {
    overflow-x: hidden;
  }

  .prototype-shell {
    width: 100%;
    max-width: 100vw;
    padding: 0 0 56px;
  }

  .hero-section {
    display: block;
    width: 100%;
    max-width: 100vw;
    border-radius: 0 0 24px 24px;
  }

  .hero-copy {
    width: 100%;
    max-width: 100vw;
    padding: 24px;
  }

  .hero-content,
  .hero-actions {
    width: 100%;
    max-width: 100%;
  }

  .hero-content > * {
    max-width: 100%;
  }

  .nav-links {
    display: none;
  }

  h1 {
    font-size: clamp(29px, 8.4vw, 34px);
    line-height: 1.08;
    overflow-wrap: anywhere;
  }

  .hero-lead {
    font-size: 15px;
    line-height: 1.55;
    overflow-wrap: anywhere;
  }

  .hero-actions a {
    display: flex;
    width: 100%;
    min-width: 0;
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

  .demo-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .demo-tab {
    padding: 0 8px;
  }
}

/* 2026-06-12 production mobile edge safety */
@media (max-width: 760px) {
  :root {
    --mobile-page-gutter: clamp(20px, 5.6vw, 28px);
  }

  .prototype-shell {
    width: 100%;
    max-width: 100vw;
    padding-left: var(--mobile-page-gutter);
    padding-right: var(--mobile-page-gutter);
    overflow: hidden;
  }

  .hero-section,
  .trust-row,
  .flow-section,
  .demo-section,
  .preview-section,
  .audience-section,
  .privacy-section,
  .pricing-section,
  .faq-section,
  .final-cta {
    width: calc(100vw - (var(--mobile-page-gutter) * 2)) !important;
    max-width: calc(100vw - (var(--mobile-page-gutter) * 2)) !important;
    margin-left: auto !important;
    margin-right: auto !important;
    overflow: hidden;
  }

  .hero-section {
    margin-top: 10px;
    border-radius: 24px;
  }

  .hero-copy {
    width: 100% !important;
    max-width: 100% !important;
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero-visual {
    padding-left: var(--mobile-page-gutter);
    padding-right: var(--mobile-page-gutter);
  }

  .flow-section,
  .demo-copy,
  .demo-card,
  .preview-section,
  .privacy-panel,
  .final-cta {
    padding-left: var(--mobile-page-gutter);
    padding-right: var(--mobile-page-gutter);
  }

  .section-title,
  .preview-copy,
  .privacy-panel,
  .final-cta,
  .demo-copy {
    overflow-wrap: anywhere;
  }

  .section-title h2,
  .preview-copy h2,
  .privacy-panel h2,
  .final-cta h2,
  .demo-copy h2 {
    max-width: 100%;
  }

  .hero-content,
  .hero-content > *,
  .hero-actions {
    width: 100%;
    max-width: 100%;
    min-width: 0;
  }

  .hero-content h1 {
    font-size: clamp(30px, 8.4vw, 36px);
    line-height: 1.08;
    max-width: 100%;
    overflow-wrap: anywhere;
    white-space: normal !important;
    word-break: normal;
  }

  .hero-lead {
    max-width: 100%;
    overflow-wrap: anywhere;
  }
}