:root {
  --ink: #111827;
  --muted: #5f6b7a;
  --blue: #0969f2;
  --cyan: #19afd3;
  --dark: #0d1420;
  --soft: #f4f7fb;
  --panel: #ffffff;
  --line: #d9e1ea;
  --shadow: 0 22px 54px rgba(17, 24, 39, 0.10);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: #fff;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(22px, 6vw, 76px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
}

.brand strong {
  color: var(--cyan);
  font-size: 28px;
  line-height: 1;
}

.brand strong span {
  color: var(--blue);
}

.brand-mark {
  position: relative;
  width: 52px;
  height: 44px;
  display: inline-block;
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 5px 7px;
  border: 5px solid var(--cyan);
  border-left-color: var(--blue);
  border-radius: 50%;
  transform: rotate(-22deg);
}

.brand-mark::after {
  content: "S";
  position: absolute;
  left: 15px;
  top: 5px;
  color: var(--blue);
  font-size: 31px;
  font-weight: 950;
  font-style: italic;
  text-shadow: 2px 2px #fff;
}

.brand-mark span {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
}

.brand-mark span:nth-child(1) {
  left: 3px;
  top: 12px;
}

.brand-mark span:nth-child(2) {
  right: 6px;
  top: 5px;
  background: var(--cyan);
}

.brand-mark span:nth-child(3) {
  left: 12px;
  bottom: 5px;
}

nav {
  display: flex;
  align-items: center;
  gap: 20px;
  color: #334155;
  font-weight: 800;
}

nav a {
  text-decoration: none;
}

.nav-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 8px;
  background: var(--blue);
  box-shadow: 0 12px 24px rgba(9, 105, 242, 0.22);
  color: #fff;
  padding: 0 18px;
  font-weight: 900;
  text-decoration: none;
}

.button.secondary {
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: none;
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 540px);
  gap: clamp(34px, 6vw, 84px);
  align-items: center;
  padding: 82px clamp(22px, 6vw, 76px);
  background: linear-gradient(180deg, #f7fbff, #ffffff);
}

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

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 820px;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  font-size: clamp(30px, 4vw, 50px);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  font-size: 19px;
}

.lead {
  max-width: 680px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.62;
}

.hero-actions,
.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.trust-row span {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: #334155;
  padding: 9px 12px;
  font-size: 13px;
  font-weight: 800;
}

.demo-card {
  display: grid;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 18px;
}

.demo-source,
.demo-caption {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
  padding: 16px;
}

.demo-source span,
.demo-arrow,
.demo-caption strong {
  color: var(--blue);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

.demo-source p,
.demo-source small,
.demo-caption p {
  color: var(--muted);
  line-height: 1.5;
}

.demo-arrow {
  text-align: center;
}

.demo-post {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  border-radius: 8px;
  background: #111827;
}

.demo-post img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.demo-overlay {
  position: absolute;
  inset: auto 0 0;
  display: grid;
  gap: 10px;
  padding: 24px;
  background: linear-gradient(180deg, transparent, rgba(10, 17, 28, 0.88) 18%);
  color: #fff;
}

.demo-overlay span {
  width: fit-content;
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  padding: 7px 11px;
  font-size: 11px;
  font-weight: 950;
}

.demo-overlay h2 {
  font-size: clamp(24px, 4vw, 34px);
}

.section {
  padding: 76px clamp(22px, 6vw, 76px);
}

.section:nth-of-type(even) {
  background: var(--soft);
}

.section-head {
  max-width: 820px;
  display: grid;
  gap: 10px;
  margin-bottom: 30px;
}

.section-head p:not(.eyebrow) {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.steps,
.prices {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.steps article,
.benefits article,
.prices article,
.security,
.cta {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 12px 32px rgba(17, 24, 39, 0.06);
  padding: 20px;
}

.steps article span {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #e9f3ff;
  color: var(--blue);
  font-weight: 950;
  margin-bottom: 22px;
}

.steps p,
.benefits p,
.prices p,
.security p,
.cta p {
  color: var(--muted);
  line-height: 1.58;
  margin-top: 10px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 40px;
  align-items: start;
}

.benefits {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.prices {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.prices article {
  min-height: 390px;
}

.prices article.featured {
  border-color: rgba(9, 105, 242, 0.35);
  box-shadow: 0 20px 48px rgba(9, 105, 242, 0.14);
}

.prices small {
  display: inline-flex;
  width: fit-content;
  border-radius: 999px;
  background: #e9f3ff;
  color: var(--blue);
  padding: 7px 10px;
  font-weight: 900;
  margin-bottom: 14px;
}

.prices strong {
  display: block;
  margin: 20px 0 8px;
  font-size: 40px;
}

.prices strong span {
  color: var(--muted);
  font-size: 16px;
}

.prices ul,
.security ul {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding-left: 20px;
  color: #334155;
}

.security {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 420px);
  gap: 32px;
  align-items: start;
}

.cta {
  margin: 40px clamp(22px, 6vw, 76px) 76px;
  display: grid;
  justify-items: start;
  gap: 14px;
  background: var(--dark);
  color: #fff;
}

.cta p {
  color: rgba(255, 255, 255, 0.72);
}

footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  border-top: 1px solid var(--line);
  padding: 28px clamp(22px, 6vw, 76px);
  color: var(--muted);
}

footer a {
  color: var(--blue);
  font-weight: 850;
  text-decoration: none;
}

@media (max-width: 1060px) {
  .hero,
  .split,
  .security {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 780px) {
  nav {
    display: none;
  }

  .hero {
    padding-top: 52px;
  }

  .steps,
  .prices,
  .benefits {
    grid-template-columns: 1fr;
  }
}