:root {
  --ink: #11151c;
  --muted: #5c6677;
  --paper: #f7f8fb;
  --line: rgba(17, 21, 28, 0.13);
  --blue: #0446df;
  --green: #00df2c;
  --cyan: #5ee3ff;
  --amber: #ffbe55;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 58px);
  background: rgba(247, 248, 251, 0.76);
  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 760;
}

.brand img,
.hero-icon,
footer img {
  border-radius: 22%;
  box-shadow: 0 12px 28px rgba(5, 21, 55, 0.18);
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2.5vw, 30px);
  color: #283142;
  font-size: 14px;
  font-weight: 650;
}

.hero {
  position: relative;
  min-height: 88svh;
  overflow: hidden;
  display: grid;
  align-items: end;
  padding: 96px clamp(18px, 5vw, 76px) 48px;
  background:
    radial-gradient(circle at 74% 18%, rgba(255, 255, 255, 0.88), transparent 28%),
    linear-gradient(135deg, #eef3f8 0%, #ffffff 48%, #dbe7f6 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 22%;
  background: linear-gradient(to top, rgba(247, 248, 251, 1), rgba(247, 248, 251, 0));
  pointer-events: none;
}

.hero-scene {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.light-beam {
  position: absolute;
  width: 42vw;
  aspect-ratio: 1;
  border-radius: 50%;
  filter: blur(10px);
  opacity: 0.64;
}

.beam-one {
  right: -14vw;
  top: -10vw;
  background: repeating-radial-gradient(circle, rgba(255, 255, 255, 0.92) 0 8px, rgba(255, 190, 85, 0.25) 9px 14px, transparent 15px 28px);
}

.beam-two {
  left: -20vw;
  bottom: 10vh;
  background: radial-gradient(circle, rgba(94, 227, 255, 0.32), transparent 62%);
}

.phone-shell {
  position: absolute;
  right: clamp(-260px, -14vw, -120px);
  bottom: clamp(18px, 6vh, 70px);
  width: min(56vw, 720px);
  aspect-ratio: 9 / 16;
  padding: 18px;
  border-radius: 54px;
  background: linear-gradient(145deg, #05070a, #2d3640 54%, #06080b);
  box-shadow: 0 36px 90px rgba(5, 12, 24, 0.28), inset 0 0 0 1px rgba(255, 255, 255, 0.24);
  transform: rotate(-4deg);
  animation: floatPhone 7s ease-in-out infinite;
}

.chroma-screen {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 38px;
  background: var(--blue);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18), inset 0 0 80px rgba(0, 0, 0, 0.13);
}

.scan-line {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 0 44%, rgba(255, 255, 255, 0.28) 50%, transparent 56% 100%);
  transform: translateX(-120%);
  animation: scan 5s ease-in-out infinite;
}

.replacement {
  position: absolute;
  inset: 13% 11%;
  border-radius: 28px;
  opacity: 0;
  transform: translateY(12px) scale(0.96);
  animation: footageSwap 8s ease-in-out infinite;
}

.replacement-one {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.9) 0 18%, transparent 18% 100%),
    linear-gradient(180deg, #101828 0 32%, #ffffff 32% 100%);
}

.replacement-two {
  inset: 19% 15%;
  background:
    radial-gradient(circle at 74% 30%, var(--amber), transparent 18%),
    linear-gradient(135deg, #0b1220, #5ee3ff);
  animation-delay: 4s;
}

.marker {
  position: absolute;
  width: clamp(38px, 5.7vw, 64px);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, #ffffff 0 12%, #050505 13% 30%, #ffffff 31% 48%, #ffffff 100%);
  border: 3px solid #070707;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.28);
}

.marker::before,
.marker::after {
  content: "";
  position: absolute;
  inset: 50% auto auto 50%;
  translate: -50% -50%;
  background: #050505;
}

.marker::before {
  width: 66%;
  height: 3px;
}

.marker::after {
  width: 3px;
  height: 66%;
}

.marker-tl { top: 5.2%; left: 6%; }
.marker-tr { top: 5.2%; right: 6%; }
.marker-bl { bottom: 5.2%; left: 6%; }
.marker-br { bottom: 5.2%; right: 6%; }

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 620px;
  padding-bottom: 3vh;
}

.hero-icon {
  display: block;
  width: 72px;
  height: 72px;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 14px;
  color: #1451cf;
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 620px;
  margin-bottom: 18px;
  font-size: clamp(34px, 4.5vw, 58px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(32px, 4.5vw, 58px);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  letter-spacing: 0;
}

.lead,
.copy p,
.tracker-copy p,
.step p,
.use-list p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.lead {
  max-width: 620px;
  margin-bottom: 22px;
  color: #354157;
  font-size: clamp(17px, 1.75vw, 19px);
}

.primary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  color: #fff;
  background: #101828;
  font-weight: 760;
  box-shadow: 0 16px 34px rgba(16, 24, 40, 0.18);
}

.hero-actions,
.support-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #182234;
  background: rgba(255, 255, 255, 0.72);
  font-weight: 760;
}

.section {
  padding: clamp(66px, 10vw, 132px) clamp(18px, 5vw, 76px);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 38px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.step,
.use-list > div,
.help-card,
.faq-list details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  padding: 26px;
}

.step span {
  display: block;
  margin-bottom: 30px;
  color: #1451cf;
  font-weight: 760;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.78fr);
  gap: clamp(34px, 7vw, 96px);
  align-items: start;
  background: #ffffff;
}

.copy {
  max-width: 700px;
}

.use-list {
  display: grid;
  gap: 14px;
}

.use-list strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.use-list p {
  margin-bottom: 0;
}

.tracker-demo {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(320px, 1fr);
  gap: clamp(34px, 7vw, 96px);
  align-items: center;
}

.marker-board {
  position: relative;
  min-height: 560px;
  border-radius: 8px;
  background: var(--blue);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.16), 0 24px 62px rgba(3, 22, 72, 0.18);
  overflow: hidden;
}

.marker-board::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 44%, rgba(255, 255, 255, 0.1), transparent 34%);
  animation: pulsePlane 4s ease-in-out infinite;
}

.help-section {
  background: #ffffff;
}

.help-section .section-heading p {
  max-width: 760px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.help-card p,
.help-card li,
.faq-list p,
.support-panel p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.help-card ol {
  margin: 0;
  padding-left: 20px;
}

.help-card li + li {
  margin-top: 8px;
}

.faq-section {
  background: linear-gradient(180deg, #f7f8fb 0%, #ffffff 100%);
}

.faq-list {
  display: grid;
  gap: 14px;
  max-width: 920px;
}

.faq-list summary {
  cursor: pointer;
  color: #182234;
  font-size: 18px;
  font-weight: 760;
}

.faq-list p {
  margin: 14px 0 0;
}

.support-section {
  padding-top: clamp(48px, 7vw, 90px);
  background: #ffffff;
}

.support-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.38fr);
  gap: clamp(24px, 5vw, 70px);
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(28px, 5vw, 56px);
  background:
    radial-gradient(circle at 90% 20%, rgba(94, 227, 255, 0.22), transparent 26%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.94), rgba(239, 245, 255, 0.94));
}

.support-panel h2 {
  max-width: 680px;
}

.support-actions {
  justify-content: flex-start;
}

.support-actions p {
  width: 100%;
  margin: 0;
  font-weight: 650;
}

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 34px clamp(18px, 5vw, 76px);
  border-top: 1px solid var(--line);
  color: #3b4658;
  font-weight: 760;
}

.footer-brand,
.footer-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-links {
  flex-wrap: wrap;
  justify-content: flex-end;
  color: #5c6677;
  font-size: 14px;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@keyframes floatPhone {
  0%, 100% { transform: rotate(-4deg) translate3d(0, 0, 0); }
  50% { transform: rotate(-3deg) translate3d(0, -14px, 0); }
}

@keyframes scan {
  0%, 38% { transform: translateX(-120%); }
  58%, 100% { transform: translateX(120%); }
}

@keyframes footageSwap {
  0%, 22%, 100% { opacity: 0; transform: translateY(12px) scale(0.96); }
  34%, 50% { opacity: 0.92; transform: translateY(0) scale(1); }
  62% { opacity: 0; transform: translateY(-8px) scale(1.02); }
}

@keyframes pulsePlane {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
  }

  nav {
    display: none;
  }

  .hero {
    min-height: 92svh;
    padding-top: 100px;
  }

  .phone-shell {
    width: min(88vw, 460px);
    right: -180px;
    bottom: 20px;
    opacity: 0.72;
  }

  .hero-copy {
    padding-bottom: 20vh;
  }

  .steps,
  .split,
  .tracker-demo,
  .help-grid,
  .support-panel {
    grid-template-columns: 1fr;
  }

  .marker-board {
    min-height: 520px;
  }

  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}