:root {
  color-scheme: light;
  --bg: #f7fbff;
  --bg-strong: #e9f7ff;
  --surface: #ffffff;
  --surface-blue: #f0f8ff;
  --text: #081524;
  --muted: #526176;
  --subtle: #7a8798;
  --line: #d9e7f2;
  --line-strong: #c5d8e8;
  --accent: #00756b;
  --accent-strong: #005d56;
  --blue: #096bd8;
  --shadow: 0 24px 70px rgba(20, 62, 94, 0.16);
  --radius: 8px;
  --content: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 10;
  padding: 10px 14px;
  color: #ffffff;
  background: var(--text);
  border-radius: 6px;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 78px;
  padding: 14px max(22px, calc((100vw - var(--content)) / 2));
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 760;
  text-decoration: none;
  letter-spacing: 0;
}

.brand img,
.footer-brand img {
  border-radius: 9px;
}

.brand span {
  font-size: 1.34rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 0.95rem;
  font-weight: 700;
}

.site-nav a,
.site-footer a {
  text-decoration: none;
}

.site-nav a:hover,
.site-footer a:hover,
.text-cta:hover,
.secondary-link:hover {
  color: var(--accent-strong);
}

.nav-cta {
  padding: 10px 14px;
  color: #ffffff;
  background: var(--blue);
  border-radius: 7px;
  box-shadow: 0 10px 24px rgba(9, 107, 216, 0.22);
}

.nav-cta:hover {
  color: #ffffff !important;
  background: #075ec0;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 460px);
  gap: clamp(36px, 7vw, 96px);
  align-items: start;
  max-width: var(--content);
  min-height: 0;
  margin: 0 auto;
  padding: 70px 22px 54px;
  overflow: hidden;
}

.hero-copy {
  max-width: 620px;
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(3rem, 7.2vw, 5.8rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero h1 {
  font-size: clamp(2.9rem, 5vw, 4.35rem);
  line-height: 1.02;
}

.hero-lede {
  max-width: 570px;
  margin-bottom: 28px;
  color: #34465d;
  font-size: clamp(1.08rem, 1.7vw, 1.3rem);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 34px;
}

.store-button {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  min-width: 186px;
  min-height: 58px;
  padding: 10px 18px 10px 58px;
  color: #ffffff;
  background:
    radial-gradient(circle at 32px 29px, #ffffff 0 8px, transparent 9px),
    #05080d;
  border-radius: 8px;
  text-decoration: none;
  box-shadow: 0 18px 40px rgba(5, 8, 13, 0.24);
}

.store-button span {
  font-size: 0.76rem;
  line-height: 1.05;
}

.store-button strong {
  font-size: 1.28rem;
  line-height: 1.1;
}

.secondary-link,
.text-cta {
  color: var(--blue);
  font-weight: 750;
  text-decoration: none;
}

.hero-list {
  display: grid;
  gap: 12px;
  max-width: 560px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: #23334a;
  font-weight: 650;
}

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

.hero-list li::before {
  position: absolute;
  left: 0;
  top: 0.4em;
  width: 14px;
  height: 14px;
  content: "";
  border: 2px solid var(--accent);
  border-radius: 999px;
}

.hero-list li::after {
  position: absolute;
  left: 5px;
  top: 0.66em;
  width: 5px;
  height: 5px;
  content: "";
  background: var(--accent);
  border-radius: 999px;
}

.hero-visual {
  position: relative;
  display: grid;
  justify-items: center;
  align-items: center;
  min-height: 0;
}

.speed-arc {
  position: absolute;
  width: min(92vw, 640px);
  aspect-ratio: 1;
  border: 32px solid rgba(211, 226, 239, 0.5);
  border-bottom-color: transparent;
  border-left-color: rgba(0, 117, 107, 0.28);
  border-radius: 999px;
  transform: rotate(-18deg);
}

.phone-shot {
  position: relative;
  width: 310px;
  max-width: 100%;
  height: auto;
  border: 1px solid rgba(12, 31, 54, 0.12);
  border-radius: 34px;
  box-shadow: var(--shadow);
}

.hero-phone {
  width: 310px;
  max-width: 80vw;
}

.trust-band,
.use-band {
  padding: 48px 22px;
  background: var(--surface);
  border-block: 1px solid var(--line);
}

.trust-band h2,
.use-band h2,
.section-heading {
  max-width: 820px;
  margin: 0 auto 34px;
  text-align: center;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.trust-grid,
.use-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  max-width: var(--content);
  margin: 0 auto;
}

.trust-grid div,
.use-grid article {
  min-height: 96px;
  padding: 18px 22px;
  text-align: center;
  border-left: 1px solid var(--line);
}

.trust-grid div:first-child,
.use-grid article:first-child {
  border-left: 0;
}

.trust-grid strong,
.trust-grid span,
.use-grid h3,
.use-grid p {
  display: block;
}

.trust-grid strong,
.use-grid h3 {
  margin-bottom: 4px;
  font-size: 1rem;
}

.trust-grid span,
.use-grid p,
.section-heading p,
.split-section p,
.article-card p,
.site-footer p,
.article-body p,
.article-body li {
  color: var(--muted);
}

.section,
.split-section {
  max-width: var(--content);
  margin: 0 auto;
  padding: 76px 22px;
}

.section-heading p {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.08rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px 46px;
}

.feature-grid article {
  padding-top: 22px;
  border-top: 2px solid var(--line);
}

.feature-grid h3 {
  margin-bottom: 8px;
  font-size: 1.18rem;
}

.feature-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: clamp(36px, 7vw, 88px);
  align-items: center;
  border-top: 1px solid var(--line);
}

.split-section h2 {
  max-width: 560px;
}

.screen-row {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.screen-row .phone-shot {
  width: 250px;
  max-width: 42vw;
}

.use-band {
  background: linear-gradient(180deg, #f0f8ff 0%, #ffffff 100%);
}

.use-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 26px;
}

.article-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.article-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: 0 18px 45px rgba(20, 62, 94, 0.12);
}

.article-card a {
  display: block;
  min-height: 100%;
  padding: 0 18px 20px;
  text-decoration: none;
}

.article-card img {
  width: calc(100% + 36px);
  height: 176px;
  margin: 0 -18px 18px;
  object-fit: cover;
  object-position: top center;
  background: var(--surface-blue);
}

.article-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.article-card h3 {
  margin-bottom: 8px;
  font-size: 1.08rem;
  line-height: 1.2;
}

.article-card strong {
  color: var(--blue);
  font-size: 0.92rem;
}

.center-link {
  margin: 28px 0 0;
  text-align: center;
}

.site-footer {
  display: grid;
  grid-template-columns: 1.4fr 0.7fr 1fr 1.2fr;
  gap: 46px;
  padding: 42px max(22px, calc((100vw - var(--content)) / 2));
  background: var(--surface);
  border-top: 2px solid #227de8;
}

.site-footer h2 {
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.site-footer nav {
  display: grid;
  align-content: start;
  gap: 8px;
}

.site-footer p {
  margin-bottom: 8px;
  font-size: 0.94rem;
}

.copyright {
  color: var(--subtle) !important;
}

.page-hero {
  max-width: 900px;
  margin: 0 auto;
  padding: 74px 22px 38px;
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(2.75rem, 6vw, 5rem);
}

.page-hero p {
  max-width: 720px;
  margin-inline: auto;
  color: var(--muted);
  font-size: 1.16rem;
}

.article-body {
  max-width: 790px;
  margin: 0 auto 86px;
  padding: 0 22px;
}

.article-body h2 {
  margin-top: 42px;
  font-size: clamp(1.7rem, 3vw, 2.2rem);
}

.article-body h3 {
  margin-top: 28px;
}

.article-body p,
.article-body li {
  font-size: 1.05rem;
}

.article-body a {
  color: var(--blue);
  font-weight: 700;
}

.callout {
  margin: 34px 0;
  padding: 22px 24px;
  background: var(--surface-blue);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.callout p:last-child,
.article-body p:last-child {
  margin-bottom: 0;
}

.guide-list {
  display: grid;
  gap: 18px;
  max-width: 860px;
  margin: 0 auto 78px;
  padding: 0 22px;
}

.guide-list a {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 20px;
  align-items: center;
  padding: 18px;
  color: inherit;
  text-decoration: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.guide-list a:hover {
  border-color: var(--line-strong);
  box-shadow: 0 16px 34px rgba(20, 62, 94, 0.1);
}

.guide-list img {
  width: 112px;
  height: 96px;
  object-fit: cover;
  object-position: top center;
  border-radius: 6px;
}

.guide-list h2 {
  margin-bottom: 4px;
  font-size: 1.35rem;
}

.guide-list p {
  margin-bottom: 0;
  color: var(--muted);
}

@media (max-width: 900px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    width: 100%;
    gap: 16px;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero,
  .split-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
    padding-top: 48px;
  }

  .hero-visual {
    min-height: 460px;
  }

  .trust-grid,
  .feature-grid,
  .use-grid,
  .article-grid,
  .site-footer {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .trust-grid div:nth-child(odd),
  .use-grid article:nth-child(odd) {
    border-left: 0;
  }
}

@media (max-width: 640px) {
  .brand span {
    font-size: 1.1rem;
  }

  .site-nav {
    font-size: 0.86rem;
  }

  .nav-cta {
    padding: 8px 10px;
  }

  h1 {
    font-size: clamp(2.55rem, 15vw, 3.35rem);
  }

  .hero {
    padding-inline: 16px;
    padding-bottom: 46px;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-visual {
    position: absolute;
    right: -92px;
    bottom: 22px;
    z-index: 0;
    width: 230px;
    opacity: 0.16;
    pointer-events: none;
  }

  .hero-phone {
    width: 230px;
    max-width: none;
  }

  .hero-copy {
    position: relative;
    z-index: 1;
  }

  .speed-arc {
    display: none;
  }

  .screen-row .phone-shot {
    width: 176px;
    max-width: 44vw;
    border-radius: 24px;
  }

  .trust-grid,
  .feature-grid,
  .use-grid,
  .article-grid,
  .site-footer,
  .guide-list a {
    grid-template-columns: 1fr;
  }

  .trust-grid div,
  .use-grid article {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .trust-grid div:first-child,
  .use-grid article:first-child {
    border-top: 0;
  }

  .article-card img {
    height: 210px;
  }

  .guide-list img {
    width: 100%;
    height: 160px;
  }
}