:root {
  --canvas: #ffd955;
  --brown: #573d3d;
  --brown-soft: #725959;
  --white: #ffffff;
  --cream: #fff9df;
  --line: rgba(87, 61, 61, 0.15);
  --success: #237a45;
  --radius: 28px;
  --radius-small: 18px;
  --shadow: 0 18px 45px rgba(87, 61, 61, 0.11);
  --content: 1120px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  color: var(--brown);
  background: var(--canvas);
  font-family: ui-rounded, "SF Pro Rounded", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
}

img { max-width: 100%; }
a { color: inherit; }

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  transform: translateY(-160%);
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--white);
  background: var(--brown);
}

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

:focus-visible {
  outline: 4px solid #1769aa;
  outline-offset: 4px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 217, 85, 0.96);
}

.nav-shell,
.section-shell,
.footer-shell {
  width: min(calc(100% - 32px), var(--content));
  margin-inline: auto;
}

.nav-shell {
  display: flex;
  min-height: 76px;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 850;
  text-decoration: none;
  white-space: nowrap;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 13px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
}

.site-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover { text-decoration: underline; text-underline-offset: 5px; }

.button,
.play-link {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: 0;
  border-radius: 999px;
  color: var(--white);
  background: var(--brown);
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button.secondary {
  color: var(--brown);
  background: var(--cream);
  box-shadow: inset 0 0 0 2px var(--brown);
}

.play-link[aria-disabled="true"] {
  color: rgba(87, 61, 61, 0.72);
  background: rgba(255, 255, 255, 0.68);
  box-shadow: inset 0 0 0 1px rgba(87, 61, 61, 0.16);
  cursor: default;
}

main { overflow: clip; }
.section { padding: 44px 0; }
.section.compact { padding: 28px 0; }

.hero {
  padding: 70px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  align-items: center;
  gap: clamp(36px, 7vw, 90px);
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1, h2, h3 { line-height: 1.12; }
h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3rem, 7.5vw, 6.5rem);
  letter-spacing: -0.055em;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4vw, 3.25rem);
  letter-spacing: -0.035em;
}

h3 { margin: 0 0 10px; font-size: 1.25rem; }
p { margin: 0 0 1em; }

.hero-copy {
  max-width: 690px;
  margin-top: 22px;
  color: var(--brown-soft);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-art {
  position: relative;
  min-height: 470px;
  display: grid;
  place-items: center;
}

.phone {
  position: relative;
  width: min(100%, 350px);
  aspect-ratio: 0.62;
  padding: 20px;
  border: 10px solid var(--brown);
  border-radius: 48px;
  background: var(--canvas);
  box-shadow: var(--shadow);
  transform: rotate(4deg);
}

.phone::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 50%;
  width: 34%;
  height: 17px;
  border-radius: 999px;
  background: var(--brown);
  transform: translateX(-50%);
}

.phone-screen {
  display: flex;
  height: 100%;
  flex-direction: column;
  gap: 12px;
  padding-top: 38px;
}

.phone-app-title {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 4px 4px;
  font-size: 1.05rem;
  font-weight: 900;
}

.phone-app-title img {
  width: 52px;
  height: 52px;
  border-radius: 16px;
}

.phone-card {
  position: relative;
  padding: 18px;
  border-radius: 24px;
  background: var(--white);
}

.phone-card strong { display: block; font-size: 1.05rem; }
.phone-label {
  display: block;
  margin-bottom: 5px;
  color: var(--brown-soft);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.phone-status {
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 4px 9px;
  border-radius: 999px;
  color: var(--success);
  background: #e7f5eb;
  font-size: 0.7rem;
  font-weight: 900;
}

.phone-start {
  min-height: 48px;
  display: grid;
  place-items: center;
  margin-top: auto;
  border-radius: 999px;
  color: var(--white);
  background: var(--brown);
  font-weight: 900;
}

.touch-dot {
  position: absolute;
  right: -28px;
  bottom: 75px;
  width: 88px;
  height: 88px;
  border: 10px solid var(--white);
  border-radius: 50%;
  background: var(--brown);
  box-shadow: var(--shadow);
}

.controller-chip {
  position: absolute;
  left: -34px;
  bottom: 130px;
  padding: 14px 18px;
  border-radius: 20px;
  color: var(--white);
  background: var(--brown);
  font-weight: 900;
  box-shadow: var(--shadow);
}

.card {
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.intro-card {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 36px;
  padding: clamp(28px, 5vw, 56px);
}

.muted { color: var(--brown-soft); }
.section-heading { max-width: 720px; margin-bottom: 24px; }

.signal-flow {
  display: grid;
  grid-template-columns: repeat(5, auto);
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 24px;
}

.signal-node {
  min-height: 120px;
  display: grid;
  place-items: center;
  padding: 20px;
  border-radius: 22px;
  text-align: center;
  background: var(--cream);
  font-weight: 850;
}

.signal-arrow { font-size: 1.8rem; font-weight: 900; }

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

.feature-card,
.access-card,
.support-preview-card {
  padding: 26px;
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 15px;
  color: var(--white);
  background: var(--brown);
  font-size: 1.35rem;
  font-weight: 900;
}

.steps {
  counter-reset: steps;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  counter-increment: steps;
  min-height: 190px;
  padding: 24px;
  border-radius: 24px;
  background: var(--white);
}

.steps li::before {
  content: counter(steps);
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 50%;
  color: var(--white);
  background: var(--brown);
  font-weight: 900;
}

.access-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.price-label {
  display: inline-block;
  margin-bottom: 12px;
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--canvas);
  font-size: 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
}

.safety-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.safety-list li {
  position: relative;
  padding-left: 30px;
}

.safety-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 900;
}

.cta-card {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 30px;
  padding: clamp(28px, 5vw, 52px);
}

.page-hero { padding: 58px 0 28px; }
.page-hero p { max-width: 760px; color: var(--brown-soft); font-size: 1.1rem; }
.content-card { padding: clamp(24px, 5vw, 52px); }
.content-card + .content-card { margin-top: 16px; }
.content-card ul { padding-left: 1.3em; }

.faq-list { overflow: hidden; }
.faq-list details + details { border-top: 1px solid var(--line); }
.faq-list summary {
  position: relative;
  min-height: 64px;
  display: flex;
  align-items: center;
  padding: 18px 54px 18px 0;
  cursor: pointer;
  font-size: 1.08rem;
  font-weight: 850;
  list-style: none;
}

.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "▼";
  position: absolute;
  right: 4px;
  width: 32px;
  text-align: center;
  font-size: 0.9rem;
}

.faq-list details[open] summary::after { content: "▲"; }
.faq-answer { padding: 0 52px 24px 0; color: var(--brown-soft); }
.faq-answer p:last-child { margin-bottom: 0; }

.notice {
  padding: 18px 20px;
  border-radius: var(--radius-small);
  background: var(--cream);
}

.danger-list strong { color: #9e2430; }
.meta-line { font-weight: 750; }

.site-footer {
  margin-top: 48px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 32px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-content: start;
  gap: 10px 20px;
}

.footer-links a { font-weight: 750; }
.fine-print { max-width: 800px; color: var(--brown-soft); font-size: 0.8rem; line-height: 1.5; }

.not-found {
  min-height: 66vh;
  display: grid;
  place-items: center;
  text-align: center;
}

@media (max-width: 900px) {
  .nav-shell { flex-wrap: wrap; gap: 8px 16px; padding: 10px 0; }
  .site-nav { order: 3; width: 100%; margin-left: 0; justify-content: space-between; gap: 8px; }
  .site-nav a { font-size: 0.9rem; }
  .nav-shell > .play-link { margin-left: auto; }
  .hero-grid,
  .intro-card,
  .cta-card { grid-template-columns: 1fr; }
  .hero-art { min-height: 400px; }
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .signal-flow { grid-template-columns: 1fr; }
  .signal-arrow { transform: rotate(90deg); text-align: center; }
}

@media (max-width: 720px) {
  .hero { padding-top: 44px; }
  .hero-grid { gap: 20px; }
  .hero-art { min-height: 360px; }
  .phone { width: 260px; border-width: 8px; border-radius: 40px; }
  .controller-chip { left: -12px; bottom: 95px; }
  .touch-dot { right: -12px; bottom: 48px; width: 68px; height: 68px; }
  .card-grid,
  .access-grid,
  .safety-list,
  .footer-grid { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
}

@media (max-width: 480px) {
  .nav-shell,
  .section-shell,
  .footer-shell { width: min(calc(100% - 24px), var(--content)); }
  .brand span { font-size: 0.95rem; }
  .brand img { width: 38px; height: 38px; }
  .nav-shell > .play-link { min-height: 44px; padding: 9px 14px; font-size: 0.82rem; }
  .site-nav a { font-size: 0.78rem; }
  .hero { padding-top: 36px; }
  .hero-art { min-height: 330px; }
  .steps { grid-template-columns: 1fr; }
  .faq-list summary { padding-right: 42px; }
  .faq-answer { padding-right: 0; }
}

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