:root {
  --ink: #172033;
  --muted: #667085;
  --paper: #fbfcff;
  --blue: #2563eb;
  --sky: #dff4ff;
  --aqua: #39c7c9;
  --lime: #b6e35f;
  --rose: #ff8a8a;
  --line: #dce4ef;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(37, 99, 235, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 68px);
  background: rgba(251, 252, 255, 0.88);
  border-bottom: 1px solid rgba(220, 228, 239, 0.8);
  backdrop-filter: blur(18px);
}

.brand,
.nav,
.hero-actions,
.promise-row,
.site-footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 900;
  font-size: 1.08rem;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background:
    radial-gradient(circle at 60% 42%, transparent 0 13px, var(--blue) 14px),
    radial-gradient(circle at 38% 54%, var(--white) 0 8px, transparent 9px),
    var(--blue);
  box-shadow: inset 0 0 0 3px var(--blue);
}

.nav {
  gap: clamp(16px, 3vw, 34px);
  color: var(--muted);
  font-size: 0.95rem;
}

.nav a:hover,
.header-link:hover {
  color: var(--blue);
}

.header-link {
  justify-self: end;
  padding: 10px 16px;
  border-radius: 8px;
  color: var(--blue);
  background: var(--sky);
  font-weight: 850;
}

.hero {
  position: relative;
  min-height: 90vh;
  display: grid;
  align-items: end;
  padding: 140px clamp(20px, 5vw, 68px) 78px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(251, 252, 255, 0.9), rgba(251, 252, 255, 0.72)),
    radial-gradient(circle at 82% 34%, rgba(57, 199, 201, 0.26), transparent 30%),
    linear-gradient(135deg, #eaf6ff, #fff7f7 54%, #f7ffdf);
}

.hero-content {
  position: relative;
  z-index: 4;
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 14px;
  font-size: clamp(5rem, 16vw, 12rem);
  line-height: 0.82;
  letter-spacing: 0;
}

h2 {
  max-width: 860px;
  margin-bottom: 0;
  font-size: clamp(2.1rem, 4.8vw, 5rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.25rem;
  line-height: 1.15;
}

.hero-content p {
  max-width: 640px;
  color: #39465a;
  font-size: clamp(1.08rem, 2vw, 1.35rem);
}

.hero-actions {
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 20px;
  border-radius: 8px;
  font-weight: 900;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease;
}

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

.button.primary {
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 18px 42px rgba(37, 99, 235, 0.22);
}

.button.secondary {
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
}

.hero-art {
  position: absolute;
  inset: 82px 0 0 34%;
  pointer-events: none;
}

.cloud {
  position: absolute;
  top: 16%;
  right: 15%;
  width: min(44vw, 620px);
  min-width: 390px;
  height: 330px;
}

.cloud-top,
.cloud-base {
  position: absolute;
  display: block;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(220, 228, 239, 0.92);
  box-shadow: var(--shadow);
}

.cloud-top {
  inset: 0 14% 24%;
  border-radius: 50% 50% 38% 38%;
}

.cloud-base {
  left: 0;
  right: 0;
  bottom: 0;
  height: 58%;
  border-radius: 34px;
}

.folder {
  position: absolute;
  display: grid;
  align-content: end;
  width: 170px;
  height: 126px;
  padding: 18px;
  border-radius: 12px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 20px 54px rgba(23, 32, 51, 0.14);
  font-weight: 900;
}

.folder span {
  position: absolute;
  top: -14px;
  left: 18px;
  width: 70px;
  height: 28px;
  border-radius: 10px 10px 0 0;
  background: inherit;
  border: 1px solid var(--line);
  border-bottom: 0;
}

.folder-one {
  top: 16%;
  right: 47%;
  background: #ffffff;
}

.folder-two {
  top: 45%;
  right: 9%;
  background: #fff1f1;
}

.folder-three {
  bottom: 12%;
  right: 38%;
  background: #f2fbff;
}

.sync-chip {
  position: absolute;
  display: grid;
  place-items: center;
  min-height: 42px;
  padding: 0 15px;
  border-radius: 999px;
  color: var(--ink);
  background: var(--lime);
  box-shadow: 0 18px 40px rgba(23, 32, 51, 0.13);
  font-weight: 900;
}

.chip-one {
  top: 27%;
  right: 21%;
}

.chip-two {
  bottom: 31%;
  right: 52%;
  background: var(--aqua);
  color: var(--white);
}

.chip-three {
  bottom: 16%;
  right: 13%;
  background: var(--rose);
  color: var(--white);
}

.promise-row {
  justify-content: center;
  gap: clamp(16px, 4vw, 56px);
  flex-wrap: wrap;
  padding: 24px clamp(20px, 5vw, 68px);
  color: var(--white);
  background: var(--blue);
  font-weight: 900;
}

.section,
.steps {
  padding: clamp(72px, 10vw, 126px) clamp(20px, 5vw, 68px);
}

.section-title {
  display: grid;
  gap: 8px;
  margin-bottom: 44px;
}

.card-grid,
.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card-grid article,
.plan-grid article {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 42px rgba(23, 32, 51, 0.06);
}

.card-grid p,
.plan-grid p,
.step-list p {
  color: var(--muted);
}

.icon {
  position: relative;
  display: block;
  width: 48px;
  height: 48px;
  margin-bottom: 26px;
  border-radius: 14px;
  background: var(--sky);
}

.icon::before,
.icon::after {
  content: "";
  position: absolute;
}

.icon-share::before {
  inset: 13px;
  border: 4px solid var(--blue);
  border-radius: 50%;
}

.icon-share::after {
  width: 17px;
  height: 4px;
  right: 8px;
  top: 22px;
  background: var(--blue);
}

.icon-sync::before {
  inset: 12px;
  border: 4px solid var(--aqua);
  border-left-color: transparent;
  border-radius: 50%;
}

.icon-safe::before {
  left: 14px;
  right: 14px;
  bottom: 11px;
  height: 22px;
  border-radius: 6px;
  background: var(--blue);
}

.icon-safe::after {
  left: 17px;
  top: 9px;
  width: 14px;
  height: 14px;
  border: 4px solid var(--blue);
  border-bottom: 0;
  border-radius: 12px 12px 0 0;
}

.steps {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(34px, 7vw, 96px);
  background: #eef8fb;
}

.step-list {
  display: grid;
  gap: 14px;
}

.step-list article {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 16px;
  align-items: center;
  min-height: 86px;
  padding: 18px;
  border-radius: 8px;
  background: var(--white);
  border: 1px solid var(--line);
}

.step-list span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue);
  font-weight: 900;
}

.step-list p {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 750;
}

.plans {
  background: var(--paper);
}

.plan-grid article {
  position: relative;
  min-height: 238px;
  display: flex;
  flex-direction: column;
}

.plan-grid strong {
  margin-top: auto;
  color: var(--blue);
  font-size: 1.6rem;
}

.plan-grid span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-weight: 800;
}

.plan-grid .featured {
  color: var(--white);
  background: var(--blue);
  border-color: var(--blue);
}

.plan-grid .featured p,
.plan-grid .featured strong,
.plan-grid .featured span {
  color: var(--white);
}

.plan-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--blue);
  background: var(--white);
  font-size: 0.78rem;
  font-weight: 900;
}

.contact {
  display: grid;
  place-items: center;
  gap: 22px;
  min-height: 430px;
  padding: clamp(70px, 9vw, 120px) 20px;
  text-align: center;
  background:
    linear-gradient(rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.8)),
    linear-gradient(135deg, var(--sky), #fff1f1, #f7ffdf);
}

.contact h2 {
  max-width: 780px;
}

.site-footer {
  justify-content: space-between;
  gap: 18px;
  padding: 26px clamp(20px, 5vw, 68px);
  color: var(--muted);
  background: var(--white);
  border-top: 1px solid var(--line);
}

.site-footer span:first-child {
  color: var(--ink);
  font-weight: 900;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav {
    display: none;
  }

  .hero-art {
    inset: 76px -60px 0 20%;
    opacity: 0.72;
  }

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

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

@media (max-width: 640px) {
  .site-header {
    padding: 14px 18px;
  }

  .header-link {
    display: none;
  }

  .hero {
    min-height: 780px;
    padding: 118px 20px 54px;
  }

  .hero-art {
    inset: 76px -170px 220px 8%;
    opacity: 0.5;
  }

  h1 {
    font-size: clamp(4.6rem, 25vw, 6.2rem);
  }

  h2 {
    font-size: clamp(2.1rem, 12vw, 3.1rem);
  }

  .button {
    width: 100%;
  }

  .cloud {
    min-width: 330px;
  }

  .folder {
    width: 140px;
    height: 106px;
  }

  .promise-row {
    justify-content: flex-start;
  }

  .step-list article {
    grid-template-columns: 44px 1fr;
    padding: 16px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}