:root {
  --blue: #0a84ff;
  --text: #111111;
  --muted: #6b7280;
  --line: #e5e7eb;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #fff;
  color: var(--text);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

.top-line {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--blue);
  z-index: 50;
  transform-origin: left;
  animation: lineIn .8s cubic-bezier(.2,.8,.2,1) both;
}

.shell {
  width: min(1120px, calc(100% - 64px));
  margin: 0 auto;
}

.header {
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.02em;
}

.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: block;
  transition: transform .28s cubic-bezier(.2,.8,.2,1);
}

.brand:hover .brand-logo { transform: scale(1.035); }
.brand-word { color: var(--text); }
.brand-l { color: var(--blue); }
.footer-brand { font-weight: 600; color: #7b8491; }

.status {
  font-size: 14px;
  color: var(--muted);
}

.hero {
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 96px;
  align-items: center;
  padding: 86px 0 96px;
}

.hero-copy { max-width: 760px; }

.kicker,
.section-label,
.feature-index {
  margin: 0 0 22px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .01em;
}

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

h1 {
  margin-bottom: 28px;
  max-width: 760px;
  font-size: clamp(58px, 7vw, 92px);
  line-height: .94;
  font-weight: 700;
  letter-spacing: -.055em;
  text-wrap: balance;
}

.lead {
  max-width: 670px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.55;
  letter-spacing: -.01em;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.store-button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  background: #111;
  color: #fff;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease;
}

.store-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(0,0,0,.12);
}

.languages {
  color: #9ca3af;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
}

.hero-mark {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.hero-mark img {
  width: 210px;
  height: 210px;
  border-radius: 46px;
  display: block;
  box-shadow: 0 26px 70px rgba(0, 0, 0, .10);
  animation: logoFloat 5s ease-in-out infinite;
}

.features {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.feature {
  min-height: 148px;
  display: grid;
  grid-template-columns: 90px 1fr;
  align-items: center;
  gap: 28px;
  padding: 28px 0;
  transition: padding-left .22s ease;
}

.feature + .feature { border-top: 1px solid var(--line); }
.feature:hover { padding-left: 8px; }

.feature-index {
  margin: 0;
  color: #9ca3af;
  font-weight: 400;
}

.feature strong {
  display: block;
  margin-bottom: 7px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.025em;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.5;
}

.privacy {
  min-height: 340px;
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 48px;
  align-items: start;
  padding: 96px 0 104px;
}

.section-label { margin: 8px 0 0; }

.privacy h2 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(34px, 4.2vw, 56px);
  line-height: 1.02;
  font-weight: 700;
  letter-spacing: -.045em;
  text-wrap: balance;
}

.privacy p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.55;
}

.footer {
  min-height: 96px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: #9ca3af;
  font-size: 12px;
  padding-bottom: max(0px, env(safe-area-inset-bottom));
}

.reveal {
  opacity: 0;
  transform: translateY(10px);
  animation: enter .62s cubic-bezier(.2,.8,.2,1) forwards;
}

.delay-1 { animation-delay: .06s; }
.delay-2 { animation-delay: .13s; }
.delay-3 { animation-delay: .20s; }
.delay-4 { animation-delay: .28s; }

.observe {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s ease, transform .7s cubic-bezier(.2,.8,.2,1);
}

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

.observe.visible .feature {
  animation: featureIn .5s cubic-bezier(.2,.8,.2,1) both;
}
.observe.visible .feature:nth-child(2) { animation-delay: .07s; }
.observe.visible .feature:nth-child(3) { animation-delay: .14s; }

@keyframes enter {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes lineIn {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

@keyframes featureIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

@media (max-width: 820px) {
  .shell { width: min(100% - 36px, 1120px); }

  .header {
    height: 76px;
    padding-top: max(3px, env(safe-area-inset-top));
  }

  .brand { gap: 10px; font-size: 19px; }
  .brand-logo { width: 36px; height: 36px; border-radius: 9px; }
  .status { font-size: 12px; }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 38px;
    padding: 56px 0 72px;
  }

  .hero-mark {
    justify-content: flex-start;
    order: -1;
  }

  .hero-mark img {
    width: 104px;
    height: 104px;
    border-radius: 24px;
    box-shadow: 0 14px 36px rgba(0,0,0,.08);
  }

  .kicker { margin-bottom: 16px; }
  h1 {
    font-size: clamp(48px, 14vw, 74px);
    line-height: .96;
    margin-bottom: 22px;
  }
  .lead { font-size: 17px; max-width: 600px; }

  .feature {
    grid-template-columns: 52px 1fr;
    gap: 18px;
    min-height: 126px;
    padding: 24px 0;
  }
  .feature:hover { padding-left: 0; }

  .privacy {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 72px 0 78px;
  }
  .section-label { margin: 0; }
  .footer { min-height: 82px; }
}

@media (max-width: 560px) {
  .shell { width: calc(100% - 28px); }

  .header {
    height: 68px;
    gap: 12px;
  }

  .brand { font-size: 18px; }
  .brand-logo { width: 34px; height: 34px; }
  .status { font-size: 11px; white-space: nowrap; }

  .hero {
    gap: 26px;
    padding: 38px 0 54px;
  }

  .hero-mark img {
    width: 84px;
    height: 84px;
    border-radius: 20px;
  }

  .kicker {
    margin-bottom: 13px;
    font-size: 12px;
  }

  h1 {
    font-size: clamp(42px, 13.2vw, 58px);
    line-height: .97;
    letter-spacing: -.05em;
    margin-bottom: 18px;
  }

  .lead {
    font-size: 16px;
    line-height: 1.5;
  }

  .hero-actions {
    margin-top: 25px;
    gap: 13px;
    align-items: flex-start;
    flex-direction: column;
  }

  .store-button {
    min-height: 42px;
    padding: 0 16px;
    font-size: 13px;
  }

  .languages { font-size: 11px; }

  .feature {
    grid-template-columns: 38px 1fr;
    gap: 12px;
    min-height: 0;
    padding: 22px 0;
  }

  .feature strong { font-size: 20px; }
  .feature p { font-size: 14px; }
  .feature-index { font-size: 11px; }

  .privacy { padding: 58px 0 64px; }
  .privacy h2 {
    margin-bottom: 14px;
    font-size: clamp(32px, 10vw, 44px);
    line-height: 1.04;
  }
  .privacy p { font-size: 15px; }

  .footer {
    min-height: 74px;
    padding-top: 18px;
    padding-bottom: max(18px, env(safe-area-inset-bottom));
  }
}

@media (max-width: 370px) {
  .status { display: none; }
  .header { justify-content: flex-start; }
  h1 { font-size: 40px; }
}