:root {
  --bg: #ffffff;
  --fg: #0a0a0a;
  --muted: #737373;
  --muted-2: #525252;
  --border: #e5e5e5;
  --border-strong: #d4d4d4;
  --card: #fafafa;
  --accent: #1f75e6;
  --accent-soft: #e8f1fd;
  --navy: #0a0e1a;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.04), 0 12px 40px rgb(0 0 0 / 0.06);
  --radius: 24px;
  --header-h: 56px;
  --max: 1120px;
  --prose: 42rem;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

a:hover {
  color: var(--muted-2);
}

button {
  font: inherit;
  cursor: pointer;
  border: 0;
  background: none;
  color: inherit;
}

.skip {
  position: absolute;
  left: 12px;
  top: -40px;
  z-index: 100;
  background: var(--fg);
  color: #fff;
  padding: 8px 12px;
  border-radius: 8px;
}

.skip:focus {
  top: 12px;
}

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  border-bottom: 1px solid rgb(0 0 0 / 0.06);
  background: rgb(255 255 255 / 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 15px;
}

.brand img {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  color: #404040;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--fg);
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle span::before {
  top: -5px;
}

.nav-toggle span::after {
  top: 5px;
}

/* Hero */

.hero {
  padding: 72px 0 28px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
}

.hero h1 {
  margin: 22px auto 16px;
  font-size: clamp(36px, 6vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.045em;
  font-weight: 700;
  max-width: 18ch;
}

.lead {
  margin: 0 auto;
  max-width: 40rem;
  color: var(--muted-2);
  font-size: 17px;
}

.hero-app {
  margin: 36px auto 10px;
  width: 88px;
  height: 88px;
  border-radius: 22px;
  box-shadow: 0 10px 30px rgb(15 40 90 / 0.22);
}

.hero-app-name {
  margin: 0 0 18px;
  font-size: 14px;
  color: var(--muted);
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #000;
  color: #fff !important;
  border-radius: 10px;
  padding: 10px 18px 10px 14px;
  transition: transform 0.15s ease, background 0.15s ease;
}

.store-btn:hover {
  background: #171717;
  transform: translateY(-1px);
}

.store-btn svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.store-btn small {
  display: block;
  font-size: 10px;
  line-height: 1;
  opacity: 0.85;
  font-weight: 500;
}

.store-btn strong {
  display: block;
  font-size: 16px;
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.chips {
  list-style: none;
  padding: 0;
  margin: 40px auto 0;
  display: grid;
  grid-template-columns: repeat(2, auto);
  justify-content: center;
  gap: 14px 36px;
  max-width: 640px;
}

.chips li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--fg);
  font-weight: 500;
}

.chips svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex-shrink: 0;
}

/* Feature cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 36px 0 24px;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px 0;
  overflow: hidden;
  min-height: 560px;
  display: grid;
  grid-template-rows: auto auto 1fr;
  box-shadow: var(--shadow);
}

.feature-card h2 {
  margin: 0;
  font-size: 26px;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.feature-card h2 span {
  color: var(--accent);
}

.feature-card p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.feature-card .phone {
  width: 78%;
  margin: 28px auto -72px;
}

/* Phones */

.phone {
  --bezel: 9px;
  --radius-phone: 36px;
  background: #0b0d12;
  border-radius: var(--radius-phone);
  padding: var(--bezel);
  box-shadow:
    0 0 0 1px rgb(0 0 0 / 0.55),
    inset 0 0 0 1px rgb(255 255 255 / 0.08),
    0 24px 50px rgb(0 0 0 / 0.28);
}

.phone-bezel {
  border-radius: calc(var(--radius-phone) - var(--bezel));
  overflow: hidden;
  aspect-ratio: 472 / 1024;
  background: var(--navy);
}

.phone-bezel img,
.phone-bezel video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Split media */

.section {
  padding: 88px 0;
}

.section-head {
  text-align: center;
  max-width: 38rem;
  margin: 0 auto 48px;
}

.section-head h2 {
  margin: 0 0 10px;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.04em;
  line-height: 1.15;
}

.section-head h2 span {
  color: var(--accent);
}

.section-head p {
  margin: 0;
  color: var(--muted-2);
}

.pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: end;
}

.pair-item {
  text-align: center;
}

.pair-item h3 {
  margin: 0 0 6px;
  font-size: 20px;
  letter-spacing: -0.03em;
}

.pair-item p {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 15px;
}

.pair-item .phone {
  width: min(280px, 72%);
  margin-inline: auto;
}

/* Privacy panel */

.panel {
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 48px 40px;
  background: linear-gradient(180deg, #fff, var(--card));
}

.panel h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 3vw, 32px);
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.panel > p {
  margin: 0 0 28px;
  color: var(--muted-2);
  max-width: 46rem;
}

.panel-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px 48px;
}

.panel-cols h3 {
  margin: 0 0 12px;
  font-size: 16px;
}

.panel-cols ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted-2);
}

.panel-cols li + li {
  margin-top: 8px;
}

.langs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.langs span {
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #1558b8;
  font-weight: 500;
}

/* Gallery */

.gallery {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.gallery figure {
  margin: 0;
}

.gallery img {
  width: 100%;
  height: auto;
  aspect-ratio: 473 / 1024;
  object-fit: contain;
  display: block;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

/* FAQ */

.faq {
  max-width: 720px;
  margin: 0 auto;
}

.faq details {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  letter-spacing: -0.02em;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "";
  width: 10px;
  height: 10px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
  flex-shrink: 0;
  margin-top: -4px;
}

.faq details[open] summary::after {
  transform: rotate(225deg);
  margin-top: 4px;
}

.faq details p {
  margin: 10px 0 0;
  color: var(--muted-2);
}

.faq-help {
  text-align: center;
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
}

.faq-help a {
  color: var(--accent);
  font-weight: 600;
}

.faq-help a:hover {
  text-decoration: underline;
}

/* CTA */

.cta {
  text-align: center;
  padding: 24px 0 96px;
}

.cta h2 {
  margin: 16px 0 8px;
  font-size: 32px;
  letter-spacing: -0.04em;
}

.cta p {
  margin: 0 0 22px;
  color: var(--muted-2);
}

.cta img.hero-app {
  margin-top: 0;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 56px 0 32px;
  background: var(--card);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  margin-bottom: 10px;
}

.footer-brand img {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}

.site-footer p {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
  max-width: 28ch;
}

.site-footer h3 {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 600;
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
  color: var(--muted-2);
}

.site-footer li + li {
  margin-top: 8px;
}

.site-footer a:hover {
  color: var(--fg);
}

.legal {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
}

/* Inner pages */

.prose {
  max-width: var(--prose);
  margin: 48px auto 96px;
  padding: 0 20px;
}

.prose h1 {
  font-size: 36px;
  letter-spacing: -0.04em;
  margin: 0 0 8px;
}

.updated {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 32px;
}

.prose h2 {
  font-size: 20px;
  letter-spacing: -0.03em;
  margin: 32px 0 8px;
}

.prose p,
.prose li {
  color: var(--muted-2);
}

.prose ul {
  padding-left: 18px;
}

.prose a {
  color: var(--accent);
}

.prose a:hover {
  text-decoration: underline;
}

.support-card {
  margin: 28px 0;
  padding: 22px 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.support-label {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.support-email {
  margin: 0;
  font-size: 20px;
  font-weight: 650;
  letter-spacing: -0.03em;
  color: var(--fg);
  overflow-wrap: anywhere;
  user-select: all;
}

/* Mobile */

@media (max-width: 900px) {
  .card-grid,
  .pair,
  .panel-cols,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .feature-card .phone {
    width: 56%;
    margin-bottom: -48px;
  }

  .footer-grid {
    gap: 28px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 8px 20px 16px;
  }

  body.nav-open .nav {
    display: flex;
  }

  .nav a {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
  }

  .hero {
    padding-top: 48px;
  }

  .section {
    padding: 64px 0;
  }

  .panel {
    padding: 28px 22px;
  }

  .gallery {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: min(240px, 72vw);
    overflow-x: auto;
    padding-bottom: 8px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .gallery figure {
    scroll-snap-align: start;
  }

  .chips {
    grid-template-columns: 1fr;
    justify-items: start;
    width: max-content;
    margin-inline: auto;
  }
}

@media (max-width: 520px) {
  .wrap {
    width: min(var(--max), calc(100% - 28px));
  }

  .feature-card .phone,
  .pair-item .phone {
    width: 70%;
  }
}

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