:root {
  color-scheme: light;
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-strong: #e2e8f0;
  --text: #0f172a;
  --muted: #475569;
  --primary: #0f766e;
  --primary-soft: #e6fffa;
  --secondary: #f59e0b;
  --secondary-soft: #fffbeb;
  --accent: #1e293b;
  --border: rgba(15, 23, 42, 0.08);
  --shadow: 0 28px 80px rgba(15, 23, 42, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
}

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

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

button,
a.button,
button.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  border: none;
  border-radius: 999px;
  padding: 0.95rem 1.4rem;
  font: inherit;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

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

.container {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.page-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(248, 250, 252, 0.96);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.nav-toggle {
  display: none;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
}

.site-brand__mark {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.9rem;
  background: linear-gradient(135deg, #0f766e 0%, #f59e0b 100%);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
}

.site-brand__logo {
  width: 2.4rem;
  height: auto;
  border-radius: 0.9rem;
  object-fit: cover;
}

.site-brand__name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  color: var(--muted);
  font-size: 0.96rem;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.store-link {
  min-width: 140px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  color: var(--accent);
  font-weight: 600;
}

.hero {
  padding: 4rem 0 5rem;
}

.hero__content {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 3rem;
}

.hero__title {
  margin: 0;
  font-size: clamp(2.75rem, 5vw, 4.5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.hero__text {
  margin: 1.4rem 0 2.1rem;
  max-width: 46rem;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.85;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero__visual {
  position: relative;
  display: grid;
  place-items: center;
}

.phone-mockup {
  position: relative;
  width: min(340px, 100%);
  aspect-ratio: 9 / 18;
  border-radius: 46px;
  padding: 1.2rem;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  box-shadow: var(--shadow);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.phone-screen {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 34px;
  background: linear-gradient(180deg, #0f766e 0%, #fff 100%);
  overflow: hidden;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 1.2rem;
  gap: 1rem;
}

.phone-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(255,255,255,0.92);
  font-size: 0.95rem;
}

.phone-status {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 0.5rem;
  opacity: 0.9;
}

.phone-status span {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: rgba(255,255,255,0.9);
}

.phone-body {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.screen-card {
  border-radius: 1.5rem;
  background: rgba(255,255,255,0.88);
  padding: 1.1rem;
  color: #0f172a;
  box-shadow: inset 0 1px 2px rgba(15,23,42,.06);
}

.screen-card h3 {
  margin: 0 0 0.6rem;
  font-size: 1rem;
}

.screen-card p {
  margin: 0;
  font-size: 0.95rem;
  color: #475569;
  line-height: 1.6;
}

.screen-footer {
  display: grid;
  gap: 0.85rem;
}

.screen-pill {
  width: 100%;
  padding: 0.8rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.07);
  color: #0f172a;
  font-size: 0.92rem;
  font-weight: 600;
}

.section {
  padding: 5rem 0;
}

.section__title {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 3vw, 2.75rem);
  letter-spacing: -0.03em;
}

.section__description {
  margin: 0 0 2.5rem;
  color: var(--muted);
  max-width: 720px;
  line-height: 1.85;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.feature-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  border-radius: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.65rem;
  box-shadow: 0 30px 60px rgba(15, 23, 42, 0.04);
}

.card__icon {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border-radius: 1rem;
  background: var(--primary-soft);
  color: var(--primary);
  margin-bottom: 1.25rem;
}

.card__title {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
}

.card__text {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.categories {
  grid-template-columns: repeat(auto-fit, minmax(165px, 1fr));
}

.category-card {
  display: grid;
  gap: 1rem;
  border-radius: 1.5rem;
  border: 1px solid rgba(15, 23, 42, 0.06);
  padding: 1.5rem;
  background: #fff;
  align-items: center;
  transition: transform 180ms ease, border-color 180ms ease;
}

.category-card:hover {
  transform: translateY(-4px);
  border-color: rgba(15, 23, 42, 0.12);
}

.category-card__icon {
  width: 3rem;
  height: 3rem;
  border-radius: 1rem;
  background: var(--secondary-soft);
  color: #b45309;
  display: grid;
  place-items: center;
}

.category-card__label {
  margin: 0;
  font-weight: 700;
}

.about-grid {
  grid-template-columns: 1.25fr 0.9fr;
  gap: 3rem;
}

.about-card {
  background: var(--primary-soft);
  border-radius: 1.75rem;
  padding: 2rem;
  color: #0f766e;
  margin-top: 1.5rem;
}

.about-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  color: var(--text);
}

.about-list li::before {
  content: "•";
  color: var(--secondary);
  font-size: 1.5rem;
  line-height: 1;
}

.cta-card {
  display: grid;
  gap: 1.25rem;
  padding: 2.25rem;
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.12), rgba(245, 158, 11, 0.12));
  border-radius: 1.75rem;
}

.cta-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.contact-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.contact-card {
  border-radius: 1.5rem;
  padding: 1.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.04);
}

.contact-card h3 {
  margin-top: 0;
}

.contact-item {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 1.15rem;
}

.contact-item span {
  color: var(--muted);
  font-size: 0.96rem;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.social-link {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.06);
  color: var(--accent);
}

.footer {
  padding: 2rem 0 3rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.footer-links a {
  color: var(--muted);
}

@media (max-width: 960px) {
  .hero__content,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .nav-toggle {
    display: inline-flex;
    background: var(--surface);
    border: 1px solid rgba(15, 23, 42, 0.08);
    color: var(--text);
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin: 0;
    padding: 1rem 1.25rem 1.5rem;
    border-bottom-left-radius: 1rem;
    border-bottom-right-radius: 1rem;
    background: rgba(248, 250, 252, 0.98);
    box-shadow: 0 24px 50px rgba(15, 23, 42, 0.08);
    flex-direction: column;
    gap: 1rem;
    z-index: 9;
  }

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

  .nav-list a {
    padding: 0.75rem 0;
  }

  .nav-actions {
    gap: 0.5rem;
  }
}

@media (max-width: 720px) {
  .page-header {
    padding: 0 0.75rem;
  }

  nav {
    flex-wrap: wrap;
  }

  .site-brand__name {
    font-size: 0.95rem;
  }

  .hero {
    padding-top: 3rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__badge {
    width: 100%;
  }

  .hero__visual {
    padding-top: 1rem;
  }

  .section {
    padding: 3.5rem 0;
  }

  .contact-grid,
  .feature-grid,
  .categories,
  .about-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .site-brand,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-links {
    width: 100%;
  }

  .contact-card,
  .card,
  .category-card {
    padding: 1.4rem;
  }
}