:root {
  --background: #f7faf8;
  --surface: #ffffff;
  --surface-muted: #edf5f1;
  --text: #11231c;
  --text-muted: #53665e;
  --brand: #3bbc82;
  --brand-dark: #0f6b4e;
  --brand-deep: #0e2f26;
  --line: #dce8e2;
  --slate: #657184;
  --shadow: 0 24px 70px rgba(13, 47, 38, 0.12);
  --radius: 24px;
  --container: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(220, 232, 226, 0.86);
  background: rgba(247, 250, 248, 0.9);
  backdrop-filter: blur(18px);
}

.nav-wrap {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--brand-deep);
  text-decoration: none;
  font-size: 1.05rem;
  font-weight: 800;
}

.brand img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 700;
}

nav a:hover {
  color: var(--brand-dark);
}

.nav-button {
  padding: 10px 17px;
  border-radius: 999px;
  background: var(--brand-deep);
  color: white;
}

.nav-button:hover {
  color: white;
  background: var(--brand-dark);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 104px 0 96px;
  background:
    radial-gradient(circle at 84% 30%, rgba(59, 188, 130, 0.18), transparent 31%),
    linear-gradient(145deg, #f7faf8 45%, #edf7f2 100%);
}

.hero::after {
  content: "";
  position: absolute;
  width: 370px;
  height: 370px;
  right: -160px;
  bottom: -220px;
  border: 64px solid rgba(101, 113, 132, 0.08);
  border-radius: 50%;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  align-items: center;
  gap: 72px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--brand-dark);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 720px;
  margin-bottom: 24px;
  font-size: clamp(2.9rem, 6vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.28rem;
}

.hero-text,
.section-copy,
.verification p,
.download-box p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.hero-text {
  max-width: 680px;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
}

.button-primary {
  background: var(--brand-dark);
  color: white;
  box-shadow: 0 12px 28px rgba(15, 107, 78, 0.22);
}

.button-primary:hover {
  background: var(--brand-deep);
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
}

.availability {
  margin: 20px 0 0;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.hero-mark {
  display: grid;
  place-items: center;
}

.logo-panel {
  position: relative;
  width: min(100%, 475px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 42px;
  background:
    linear-gradient(145deg, #10273A, #17324A);
  box-shadow: var(--shadow);
}

.logo-panel::before,
.logo-panel::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.logo-panel::before {
  inset: 32px;
}

.logo-panel::after {
  inset: 70px;
}

.logo-panel img {
  position: relative;
  z-index: 2;
  width: 84%;
}

.trust-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.trust-grid div {
  min-height: 150px;
  padding: 34px 38px;
  border-right: 1px solid var(--line);
}

.trust-grid div:last-child {
  border-right: 0;
}

.trust-grid strong,
.trust-grid span {
  display: block;
}

.trust-grid strong {
  margin-bottom: 6px;
  color: var(--brand-deep);
  font-size: 1rem;
}

.trust-grid span {
  color: var(--text-muted);
  font-size: 0.94rem;
}

.section {
  padding: 108px 0;
}

.section-muted {
  background: var(--surface-muted);
}

.two-column,
.verification-grid {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 90px;
}

.section-copy {
  max-width: 650px;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 42px;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.social-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.social-links a:hover {
  color: var(--brand-dark);
}

.social-links .mdi,
.social-links .si {
  font-size: 22px;
  line-height: 1;
}

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

.topic-card {
  min-height: 235px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 12px 30px rgba(13, 47, 38, 0.04);
}

.topic-card p {
  margin-bottom: 0;
  color: var(--text-muted);
}

.topic-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 24px;
  border-radius: 14px;
  background: rgba(59, 188, 130, 0.13);
  color: var(--brand-dark);
  font-weight: 900;
}

.verification {
  background: var(--brand-deep);
  color: white;
}

.verification .eyebrow {
  color: #6fe0ad;
}

.verification p {
  max-width: 700px;
  color: #c8d8d2;
}

.verification-badge {
  align-self: center;
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.07);
}

.verification-badge span,
.verification-badge strong,
.verification-badge small {
  display: block;
}

.verification-badge span {
  color: #b8cdc5;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.verification-badge strong {
  margin: 10px 0;
  color: #6fe0ad;
  font-size: 2rem;
}

.verification-badge small {
  color: #c8d8d2;
}

.download {
  background: var(--surface);
}

.download-box {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 48px;
  padding: 54px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background:
    radial-gradient(circle at 90% 0%, rgba(59, 188, 130, 0.16), transparent 34%),
    var(--background);
}

.download-box h2 {
  margin-bottom: 10px;
}

.store-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.store-button {
  min-width: 180px;
  padding: 14px 20px;
  border-radius: 13px;
  background: #111;
  color: white;
  font-weight: 750;
  line-height: 1.18;
}

.store-button small {
  color: #b7b7b7;
  font-weight: 500;
}

footer {
  padding: 38px 0;
  border-top: 1px solid var(--line);
  background: #f1f6f3;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 28px;
}

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

.footer-brand img {
  width: 54px;
  height: 54px;
}

.footer-brand strong,
.footer-brand span {
  display: block;
}

.footer-brand span,
.copyright {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--brand-dark);
}

.copyright {
  grid-column: 1 / -1;
  margin: 0;
}

@media (max-width: 920px) {
  nav a:not(.nav-button) {
    display: none;
  }

  .hero-grid,
  .two-column,
  .verification-grid,
  .download-box {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 76px;
  }

  .hero-grid,
  .two-column,
  .verification-grid {
    gap: 46px;
  }

  .hero-mark {
    max-width: 570px;
    margin-inline: auto;
  }

  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .download-box {
    padding: 40px;
  }

  .store-buttons {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .brand span {
    display: none;
  }

  .site-header .nav-wrap {
    min-height: 68px;
  }

  .brand img {
    width: 43px;
    height: 43px;
  }

  h1 {
    font-size: clamp(2.8rem, 15vw, 4.3rem);
  }

  .hero {
    padding: 64px 0 68px;
  }

  .section {
    padding: 76px 0;
  }

  .trust-grid,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .trust-grid div {
    min-height: 0;
    padding: 26px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .trust-grid div:last-child {
    border-bottom: 0;
  }

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

  .logo-panel {
    border-radius: 28px;
  }

  .download-box {
    padding: 28px;
    border-radius: 24px;
  }

  .store-button {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-links {
    flex-wrap: wrap;
  }

  .copyright {
    grid-column: auto;
  }
}
