:root {
  --ink: #071923;
  --ink-soft: #102a36;
  --mint: #46e2a6;
  --mint-dark: #0c8f68;
  --mint-wash: #dffbf0;
  --paper: #f4f8f6;
  --white: #ffffff;
  --muted: #61737c;
  --line: rgba(7, 25, 35, 0.12);
  --orange: #ffb14a;
  --danger: #f35b61;
  --max: 1180px;
  --shadow: 0 34px 90px rgba(7, 25, 35, 0.14);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  word-break: keep-all;
  overflow-x: hidden;
}

button,
a {
  font: inherit;
}

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

button {
  color: inherit;
}

img,
video {
  display: block;
  max-width: 100%;
}

.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;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 16px;
  background: var(--white);
  border-radius: 8px;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 100;
  padding: 18px 24px;
  transition: padding 220ms ease, background 220ms ease, border-color 220ms ease, backdrop-filter 220ms ease;
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  padding-block: 10px;
  background: rgba(244, 248, 246, 0.86);
  border-color: rgba(7, 25, 35, 0.08);
  backdrop-filter: blur(18px);
}

.nav-wrap {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.brand img {
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(7, 25, 35, 0.12);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 14px;
  font-weight: 720;
}

.site-nav a {
  position: relative;
  transition: color 160ms ease;
}

.site-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 2px;
  background: var(--mint-dark);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  padding: 10px 18px;
  color: var(--white);
  background: var(--ink);
  border-radius: 999px;
}

.menu-button {
  display: none;
}

.hero {
  position: relative;
  min-height: 930px;
  padding: 150px 24px 110px;
  overflow: hidden;
  background:
    linear-gradient(rgba(244, 248, 246, 0.76), rgba(244, 248, 246, 0.94)),
    radial-gradient(circle at 20% 15%, rgba(70, 226, 166, 0.18), transparent 34%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background-image: radial-gradient(rgba(7, 25, 35, 0.22) 0.7px, transparent 0.7px);
  background-size: 26px 26px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(4px);
  pointer-events: none;
}

.hero-glow-one {
  width: 420px;
  height: 420px;
  top: -220px;
  left: 35%;
  background: rgba(70, 226, 166, 0.25);
}

.hero-glow-two {
  width: 280px;
  height: 280px;
  right: -120px;
  bottom: 20px;
  background: rgba(70, 226, 166, 0.15);
}

.hero-grid {
  position: relative;
  z-index: 1;
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.78fr);
  align-items: center;
  gap: clamp(58px, 8vw, 110px);
}

.eyebrow {
  margin: 0 0 22px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--mint-dark);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.eyebrow span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 6px rgba(70, 226, 166, 0.13);
}

.competition-badge {
  width: fit-content;
  max-width: 100%;
  margin: 0 0 22px;
  padding: 8px 13px 8px 9px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #37515b;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(7, 25, 35, 0.1);
  border-radius: 999px;
  box-shadow: 0 10px 30px rgba(7, 25, 35, 0.06);
  font-size: 12px;
  font-weight: 760;
  line-height: 1.4;
}

.competition-badge span {
  flex: 0 0 auto;
  padding: 4px 8px;
  color: var(--ink);
  background: var(--mint);
  border-radius: 999px;
  font-size: 10px;
  font-weight: 950;
  letter-spacing: 0.08em;
}

.hero h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(52px, 6.2vw, 88px);
  line-height: 1.08;
  letter-spacing: -0.065em;
}

.hero h1 em,
.closing-section h2 em {
  position: relative;
  color: var(--mint-dark);
  font-style: normal;
  white-space: nowrap;
}

.hero h1 em::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 10px;
  z-index: -1;
  background: var(--mint);
  opacity: 0.3;
  transform: rotate(-1deg);
}

.hero-description {
  max-width: 650px;
  margin: 34px 0 0;
  color: #425760;
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.85;
  letter-spacing: -0.015em;
}

.hero-actions {
  margin-top: 38px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 52px;
  padding: 13px 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 820;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button:disabled {
  cursor: wait;
  opacity: 0.72;
  transform: none;
}

.button-primary {
  color: var(--ink);
  background: var(--mint);
  box-shadow: 0 16px 36px rgba(12, 143, 104, 0.22);
}

.button-primary:hover {
  box-shadow: 0 20px 42px rgba(12, 143, 104, 0.3);
}

.button-ghost {
  background: rgba(255, 255, 255, 0.68);
  border-color: var(--line);
}

.play-icon {
  font-size: 12px;
}

.download-icon {
  font-size: 20px;
  font-weight: 900;
  line-height: 1;
}

.trust-list {
  margin: 34px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: #52666f;
  font-size: 13px;
  font-weight: 720;
  list-style: none;
}

.trust-list li {
  display: flex;
  align-items: center;
  gap: 7px;
}

.trust-list li::before {
  content: "✓";
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  color: var(--ink);
  background: var(--mint);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 900;
}

.hero-visual {
  position: relative;
  min-height: 820px;
  display: grid;
  place-items: center;
}

.orbit {
  position: absolute;
  border: 1px dashed rgba(12, 143, 104, 0.3);
  border-radius: 50%;
  animation: orbit-spin 32s linear infinite;
}

.orbit::after {
  content: "";
  position: absolute;
  top: -7px;
  left: 50%;
  width: 14px;
  height: 14px;
  background: var(--mint);
  border: 4px solid var(--paper);
  border-radius: 50%;
}

.orbit-one {
  width: 570px;
  height: 570px;
}

.orbit-two {
  width: 690px;
  height: 690px;
  opacity: 0.48;
  animation-duration: 46s;
  animation-direction: reverse;
}

@keyframes orbit-spin {
  to { transform: rotate(1turn); }
}

.video-shell {
  position: relative;
  z-index: 2;
  width: min(100%, 320px);
  padding: 13px;
  background: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 42px;
  box-shadow: 0 42px 90px rgba(7, 25, 35, 0.25);
}

.video-topline {
  height: 37px;
  padding: 0 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.04em;
}

.video-time {
  margin-left: auto;
  color: rgba(255, 255, 255, 0.45);
}

.live-dot {
  width: 7px;
  height: 7px;
  background: var(--mint);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(70, 226, 166, 0.14);
}

.phone-video {
  aspect-ratio: 9 / 22;
  overflow: hidden;
  background: var(--ink);
  border-radius: 31px;
}

.phone-video video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--ink);
}

.floating-note {
  position: absolute;
  z-index: 3;
  padding: 12px 17px 12px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(7, 25, 35, 0.08);
  border-radius: 14px;
  box-shadow: 0 18px 45px rgba(7, 25, 35, 0.12);
  backdrop-filter: blur(12px);
  font-size: 13px;
  font-weight: 760;
}

.floating-note span {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  background: var(--mint-wash);
  border-radius: 9px;
  color: var(--mint-dark);
  font-size: 11px;
}

.note-local {
  top: 22%;
  left: -60px;
}

.note-consent {
  right: -90px;
  bottom: 18%;
}

.section {
  width: min(100% - 48px, var(--max));
  margin: 0 auto;
  padding: 130px 0;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 64px;
}

.section-heading h2,
.closing-section h2,
.limitation-copy h2 {
  margin: 0;
  font-size: clamp(38px, 4.8vw, 62px);
  line-height: 1.2;
  letter-spacing: -0.055em;
}

.section-heading > p:last-child {
  max-width: 650px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.problem-section {
  padding-top: 150px;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.problem-copy,
.solution-copy {
  padding: 48px 48px 52px 0;
}

.solution-copy {
  padding-left: 48px;
  background: linear-gradient(135deg, transparent, rgba(70, 226, 166, 0.08));
  border-left: 1px solid var(--line);
}

.section-index {
  margin: 0 0 48px;
  color: var(--mint-dark);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.13em;
}

.problem-grid h3 {
  margin: 0;
  font-size: clamp(25px, 2.5vw, 34px);
  line-height: 1.35;
  letter-spacing: -0.04em;
}

.problem-grid article > p:last-child {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.audience-line {
  margin-top: 30px;
  padding: 24px 30px;
  display: grid;
  grid-template-columns: 170px 1fr;
  align-items: center;
  gap: 24px;
  background: var(--white);
  border-left: 4px solid var(--mint);
  box-shadow: 0 14px 40px rgba(7, 25, 35, 0.06);
}

.audience-line p {
  margin: 0;
  color: #354b55;
  font-weight: 650;
}

.audience-label {
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.05em;
}

.flow-section {
  width: 100%;
  max-width: none;
  padding-inline: max(24px, calc((100vw - var(--max)) / 2));
  background: var(--white);
}

.flow-list {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
}

.flow-item {
  position: relative;
  min-height: 340px;
  padding: 32px 28px 36px;
  border-top: 2px solid var(--ink);
  border-right: 1px solid var(--line);
}

.flow-item:last-child {
  border-right: 0;
}

.flow-item::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 10px;
  height: 10px;
  background: var(--mint);
  border-radius: 50%;
}

.flow-number {
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

.flow-icon {
  width: 68px;
  height: 68px;
  margin: 54px 0 30px;
  display: grid;
  place-items: center;
  background: var(--mint-wash);
  border-radius: 20px;
}

.flow-icon svg {
  width: 34px;
  fill: none;
  stroke: var(--ink);
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.flow-item h3 {
  margin: 0;
  font-size: 23px;
  letter-spacing: -0.03em;
}

.flow-item p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.feature-section {
  padding-bottom: 160px;
}

.feature-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
}

.feature-lead {
  min-height: 620px;
  padding: 56px;
  color: var(--white);
  background:
    radial-gradient(circle at 100% 0%, rgba(70, 226, 166, 0.22), transparent 36%),
    var(--ink);
  border-radius: 32px;
  box-shadow: var(--shadow);
}

.feature-kicker {
  color: var(--mint);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.17em;
}

.feature-lead h3 {
  margin: 130px 0 0;
  font-size: clamp(32px, 3.2vw, 44px);
  line-height: 1.25;
  letter-spacing: -0.05em;
}

.feature-lead > p {
  max-width: 570px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 17px;
}

.signal-demo {
  margin-top: 48px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
}

.signal-demo div {
  min-height: 58px;
  padding: 12px 16px;
  display: grid;
  grid-template-columns: 54px 1fr auto;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.signal-demo div:last-child {
  border-bottom: 0;
}

.signal-demo span {
  color: rgba(255, 255, 255, 0.46);
  font-size: 12px;
  font-weight: 800;
}

.signal-demo strong {
  font-size: 14px;
  letter-spacing: 0.025em;
}

.signal-demo i {
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-style: normal;
  font-weight: 850;
}

.signal-safe {
  color: var(--mint);
  background: rgba(70, 226, 166, 0.12);
}

.signal-risk {
  color: #ff9a9f;
  background: rgba(243, 91, 97, 0.13);
}

.feature-stack {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.feature-card {
  min-height: 300px;
  padding: 30px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 24px;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: rgba(12, 143, 104, 0.28);
  box-shadow: 0 20px 50px rgba(7, 25, 35, 0.08);
}

.card-number {
  color: var(--mint-dark);
  font-size: 12px;
  font-weight: 900;
}

.feature-card h3 {
  margin: 80px 0 0;
  font-size: 22px;
  line-height: 1.35;
  letter-spacing: -0.035em;
}

.feature-card p {
  margin: 13px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.gallery-section {
  width: 100%;
  max-width: none;
  padding-inline: max(24px, calc((100vw - var(--max)) / 2));
  background: #e9f0ed;
}

.screen-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: end;
  gap: 32px;
}

.screen-card {
  margin: 0;
}

.screen-card-featured {
  transform: translateY(-32px);
}

.screen-frame {
  padding: 10px;
  overflow: hidden;
  background: var(--ink);
  border-radius: 36px;
  box-shadow: 0 28px 70px rgba(7, 25, 35, 0.19);
}

.screen-frame img {
  width: 100%;
  aspect-ratio: 9 / 18.5;
  object-fit: cover;
  object-position: top;
  border-radius: 28px;
}

.screen-card figcaption {
  position: relative;
  margin-top: 22px;
  padding-left: 42px;
  display: flex;
  flex-direction: column;
}

.screen-card figcaption span {
  position: absolute;
  left: 0;
  top: 2px;
  color: var(--mint-dark);
  font-size: 12px;
  font-weight: 900;
}

.screen-card figcaption strong {
  font-size: 19px;
  letter-spacing: -0.025em;
}

.screen-card figcaption small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 14px;
}

.architecture-section {
  width: 100%;
  max-width: none;
  padding-inline: max(24px, calc((100vw - var(--max)) / 2));
  color: var(--white);
  background:
    radial-gradient(circle at 8% 15%, rgba(70, 226, 166, 0.13), transparent 25%),
    radial-gradient(circle at 88% 62%, rgba(70, 226, 166, 0.1), transparent 24%),
    var(--ink);
}

.section-heading-light .eyebrow {
  color: var(--mint);
}

.section-heading-light > p:last-child {
  color: rgba(255, 255, 255, 0.64);
}

.architecture-map {
  display: grid;
  grid-template-columns: 1fr 230px 1fr;
  align-items: center;
}

.architecture-node {
  min-height: 320px;
  padding: 44px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.045);
  backdrop-filter: blur(10px);
}

.device-node {
  border-left: 3px solid var(--mint);
}

.cloud-node {
  border-right: 3px solid rgba(255, 255, 255, 0.3);
}

.node-label {
  color: var(--mint);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.17em;
}

.architecture-node h3 {
  margin: 35px 0 0;
  font-size: 30px;
  letter-spacing: -0.04em;
}

.architecture-node ul {
  margin: 24px 0 0;
  padding: 0;
  color: rgba(255, 255, 255, 0.68);
  list-style: none;
}

.architecture-node li {
  position: relative;
  padding: 7px 0 7px 19px;
}

.architecture-node li::before {
  content: "";
  position: absolute;
  top: 17px;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--mint);
  border-radius: 50%;
}

.consent-gate {
  position: relative;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.gate-line {
  position: absolute;
  z-index: -1;
  width: 100%;
  height: 1px;
  background: repeating-linear-gradient(to right, rgba(70, 226, 166, 0.6) 0 8px, transparent 8px 15px);
}

.consent-gate strong {
  padding: 12px 20px;
  color: var(--ink);
  background: var(--mint);
  border-radius: 999px;
  font-size: 14px;
}

.consent-gate small {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.52);
  font-size: 12px;
}

.gate-arrow {
  position: absolute;
  right: 18px;
  top: 50%;
  color: var(--mint);
  transform: translateY(-52%);
}

.privacy-grid {
  margin-top: 72px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.privacy-item {
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.privacy-item > span {
  color: var(--mint);
  font-size: 12px;
  font-weight: 900;
}

.privacy-item h3 {
  margin: 34px 0 0;
  font-size: 22px;
}

.privacy-item p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 15px;
}

.tech-board {
  display: grid;
  grid-template-columns: 1fr 1px 1fr 1px 1fr;
  gap: 38px;
  padding: 48px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 24px 70px rgba(7, 25, 35, 0.07);
}

.tech-column > p {
  margin: 0 0 30px;
  color: var(--mint-dark);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-list span {
  padding: 7px 11px;
  background: #eef4f1;
  border-radius: 7px;
  color: #334952;
  font-size: 13px;
  font-weight: 700;
}

.tech-divider {
  background: var(--line);
}

.implementation-note {
  margin-top: 28px;
  padding: 28px 32px;
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 28px;
  background: var(--mint-wash);
  border-left: 4px solid var(--mint);
}

.implementation-note strong {
  font-size: 14px;
}

.implementation-note p {
  margin: 0;
  color: #3a555e;
  font-size: 14px;
}

.download-section {
  width: 100%;
  max-width: none;
  padding-inline: max(24px, calc((100vw - var(--max)) / 2));
  color: var(--white);
  background: #e9f0ed;
}

.download-panel {
  position: relative;
  padding: clamp(40px, 6vw, 72px);
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.7fr);
  align-items: center;
  gap: clamp(42px, 7vw, 90px);
  overflow: hidden;
  background:
    radial-gradient(circle at 8% 5%, rgba(70, 226, 166, 0.2), transparent 32%),
    var(--ink);
  border-radius: 36px;
  box-shadow: var(--shadow);
}

.download-panel::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -190px;
  width: 420px;
  height: 420px;
  border: 1px solid rgba(70, 226, 166, 0.18);
  border-radius: 50%;
  box-shadow: 0 0 0 70px rgba(70, 226, 166, 0.025), 0 0 0 140px rgba(70, 226, 166, 0.018);
}

.download-copy,
.download-card {
  position: relative;
  z-index: 1;
}

.download-copy .eyebrow {
  color: var(--mint);
}

.download-copy h2 {
  margin: 0;
  font-size: clamp(36px, 4.3vw, 58px);
  line-height: 1.2;
  letter-spacing: -0.055em;
}

.download-copy > p:not(.eyebrow) {
  max-width: 640px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.64);
  font-size: 17px;
}

.download-meta {
  margin-top: 38px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.download-meta span {
  min-width: 132px;
  padding: 13px 15px;
  display: flex;
  flex-direction: column;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  font-size: 14px;
  font-weight: 760;
}

.download-meta small {
  margin-bottom: 2px;
  color: var(--mint);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.13em;
}

.download-card {
  padding: 26px;
  color: var(--ink);
  background: var(--white);
  border-radius: 26px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.2);
}

.download-app {
  display: flex;
  align-items: center;
  gap: 16px;
}

.download-app img {
  border-radius: 18px;
  box-shadow: 0 12px 28px rgba(7, 25, 35, 0.15);
}

.download-app div {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.download-app strong {
  font-size: 21px;
  letter-spacing: -0.025em;
}

.download-app span {
  color: var(--muted);
  font-size: 13px;
}

.download-button {
  width: 100%;
  margin-top: 26px;
}

.download-status {
  min-height: 24px;
  margin: 12px 0 0;
  color: var(--mint-dark);
  font-size: 13px;
  font-weight: 760;
  text-align: center;
}

.download-status.is-error {
  color: #c33842;
}

.install-note {
  margin: 12px 0 0;
  padding-top: 16px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.6;
}

.limitation-section {
  padding-top: 30px;
  display: grid;
  grid-template-columns: 230px 1fr;
  align-items: center;
  gap: 80px;
}

.limitation-mark {
  width: 200px;
  height: 200px;
  display: grid;
  place-items: center;
  color: var(--ink);
  background: var(--orange);
  border-radius: 50%;
  box-shadow: 24px 24px 0 var(--ink);
  font-size: 92px;
  font-weight: 950;
}

.limitation-copy p:last-child {
  max-width: 720px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.closing-section {
  position: relative;
  min-height: 650px;
  padding: 120px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
}

.closing-section > *:not(.closing-orbit) {
  position: relative;
  z-index: 1;
}

.closing-section img {
  margin-bottom: 34px;
  border-radius: 22px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.25);
}

.closing-section .eyebrow {
  color: var(--mint);
}

.closing-section h2 {
  font-size: clamp(42px, 5.8vw, 72px);
}

.closing-section .button {
  margin-top: 42px;
}

.closing-orbit {
  position: absolute;
  width: min(75vw, 850px);
  aspect-ratio: 1;
  border: 1px solid rgba(70, 226, 166, 0.18);
  border-radius: 50%;
  box-shadow: 0 0 0 100px rgba(70, 226, 166, 0.025), 0 0 0 200px rgba(70, 226, 166, 0.018);
}

.site-footer {
  padding: 34px 24px;
  color: rgba(255, 255, 255, 0.48);
  background: #031017;
  font-size: 13px;
}

.footer-inner {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 30px;
}

.footer-inner p {
  margin: 0;
}

.footer-brand {
  color: var(--white);
  font-size: 19px;
}

.footer-url {
  font-variant-numeric: tabular-nums;
}

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

@media (max-width: 1100px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 50px;
  }

  .site-nav {
    gap: 20px;
  }

  .note-local {
    left: -35px;
  }

  .note-consent {
    right: -35px;
  }

  .orbit-two {
    width: 600px;
    height: 600px;
  }

  .feature-layout {
    grid-template-columns: 1fr;
  }

  .feature-lead {
    min-height: auto;
  }

  .feature-lead h3 {
    margin-top: 80px;
  }

  .architecture-map {
    grid-template-columns: 1fr 170px 1fr;
  }

  .tech-board {
    gap: 24px;
    padding: 36px;
  }

  .download-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .site-header {
    padding-inline: 18px;
  }

  .menu-button {
    position: relative;
    z-index: 102;
    width: 44px;
    height: 44px;
    padding: 0;
    display: grid;
    place-content: center;
    gap: 6px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 50%;
  }

  .menu-button span:not(.sr-only) {
    width: 18px;
    height: 2px;
    background: var(--ink);
    transition: transform 180ms ease;
  }

  .menu-button[aria-expanded="true"] span:nth-last-child(2) {
    transform: translateY(4px) rotate(45deg);
  }

  .menu-button[aria-expanded="true"] span:last-child {
    transform: translateY(-4px) rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 101;
    padding: 110px 32px 50px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 24px;
    background: rgba(244, 248, 246, 0.98);
    font-size: 26px;
    transform: translateX(100%);
    transition: transform 220ms ease;
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .nav-cta {
    margin-top: 16px;
    color: var(--ink);
    background: var(--mint);
  }

  .hero {
    padding-top: 130px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 720px;
  }

  .hero-visual {
    margin-top: 20px;
    min-height: 720px;
  }

  .video-shell {
    width: min(100%, 286px);
    padding: 10px;
    border-radius: 36px;
  }

  .video-topline {
    height: 32px;
  }

  .phone-video {
    border-radius: 27px;
  }

  .problem-grid {
    grid-template-columns: 1fr;
  }

  .problem-copy,
  .solution-copy {
    padding: 42px 0;
  }

  .solution-copy {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .flow-list {
    grid-template-columns: 1fr 1fr;
  }

  .flow-item:nth-child(2) {
    border-right: 0;
  }

  .flow-item {
    min-height: 300px;
  }

  .screen-gallery {
    gap: 18px;
  }

  .screen-card-featured {
    transform: none;
  }

  .architecture-map {
    grid-template-columns: 1fr;
  }

  .consent-gate {
    min-height: 140px;
  }

  .gate-line {
    width: 1px;
    height: 100%;
    background: repeating-linear-gradient(to bottom, rgba(70, 226, 166, 0.6) 0 8px, transparent 8px 15px);
  }

  .gate-arrow {
    right: 50%;
    top: auto;
    bottom: 8px;
    transform: translateX(50%) rotate(90deg);
  }

  .privacy-grid {
    grid-template-columns: 1fr;
  }

  .tech-board {
    grid-template-columns: 1fr;
  }

  .tech-divider {
    width: 100%;
    height: 1px;
  }

  .limitation-section {
    grid-template-columns: 150px 1fr;
    gap: 50px;
  }

  .limitation-mark {
    width: 140px;
    height: 140px;
    box-shadow: 15px 15px 0 var(--ink);
    font-size: 68px;
  }

  .footer-inner {
    grid-template-columns: 1fr auto;
  }

  .footer-url {
    grid-column: 1 / -1;
  }
}

@media (max-width: 620px) {
  html {
    scroll-padding-top: 76px;
  }

  body {
    word-break: normal;
  }

  .brand {
    font-size: 20px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .hero {
    min-height: auto;
    padding: 112px 20px 90px;
  }

  .hero h1 {
    font-size: clamp(43px, 13vw, 60px);
  }

  .hero-description {
    font-size: 17px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .trust-list {
    display: grid;
    gap: 10px;
  }

  .hero-visual {
    min-height: 720px;
  }

  .video-shell {
    width: min(82vw, 286px);
  }

  .orbit-one {
    width: 500px;
    height: 500px;
  }

  .orbit-two {
    width: 610px;
    height: 610px;
  }

  .floating-note {
    font-size: 12px;
  }

  .note-local {
    top: 17%;
    left: -4px;
  }

  .note-consent {
    right: -4px;
    bottom: 12%;
  }

  .section {
    width: min(100% - 40px, var(--max));
    padding-block: 94px;
  }

  .section-heading {
    margin-bottom: 44px;
  }

  .section-heading h2,
  .closing-section h2,
  .limitation-copy h2 {
    font-size: clamp(34px, 10vw, 46px);
  }

  .section-heading > p:last-child {
    font-size: 16px;
  }

  .section-index {
    margin-bottom: 30px;
  }

  .audience-line {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .flow-section,
  .gallery-section,
  .architecture-section,
  .download-section {
    width: 100%;
    padding-inline: 20px;
  }

  .flow-list {
    grid-template-columns: 1fr;
  }

  .flow-item,
  .flow-item:nth-child(2) {
    min-height: auto;
    padding: 28px 12px 34px;
    border-right: 0;
  }

  .flow-icon {
    margin: 36px 0 24px;
  }

  .feature-lead {
    padding: 36px 28px;
    border-radius: 24px;
  }

  .feature-lead h3 {
    margin-top: 70px;
  }

  .signal-demo div {
    grid-template-columns: 45px minmax(0, 1fr) auto;
  }

  .signal-demo strong {
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .feature-stack {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: 230px;
  }

  .feature-card h3 {
    margin-top: 52px;
  }

  .screen-gallery {
    grid-template-columns: 1fr;
    gap: 58px;
  }

  .screen-card {
    width: min(100%, 350px);
    margin-inline: auto;
  }

  .architecture-node {
    min-height: auto;
    padding: 34px 26px;
  }

  .implementation-note {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .competition-badge {
    align-items: flex-start;
    border-radius: 16px;
  }

  .download-panel {
    padding: 36px 24px;
    border-radius: 24px;
  }

  .download-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .download-meta span:first-child {
    grid-column: 1 / -1;
  }

  .limitation-section {
    grid-template-columns: 1fr;
  }

  .limitation-mark {
    width: 105px;
    height: 105px;
    box-shadow: 11px 11px 0 var(--ink);
    font-size: 54px;
  }

  .closing-section {
    min-height: 590px;
    padding-inline: 20px;
  }

  .closing-section .button {
    width: auto;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

}