:root {
  color-scheme: light;
  --ink: #0d1826;
  --muted: #5d6b7d;
  --soft: #eef5fb;
  --line: #d8e4ef;
  --blue: #1769e0;
  --blue-dark: #0d4aa7;
  --teal: #0f8f9a;
  --green: #2a8f6a;
  --paper: #ffffff;
  --panel: #f7fafc;
  --shadow: 0 22px 60px rgba(13, 24, 38, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(216, 228, 239, 0.76);
  backdrop-filter: blur(18px);
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
}

.brand-link:hover,
.brand-link:focus-visible {
  color: var(--blue-dark);
  outline: none;
}

.brand-mark {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
}

.brand-text {
  display: grid;
  gap: 0;
  line-height: 1.02;
}

.brand-text strong {
  font-size: 1.12rem;
  font-weight: 900;
}

.brand-text span {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border-radius: 999px;
  color: #34465b;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: #eaf3ff;
  color: var(--blue-dark);
  outline: none;
}

.hero {
  position: relative;
  min-height: 82svh;
  overflow: hidden;
  color: #ffffff;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(3, 13, 23, 0.92) 0%, rgba(6, 21, 35, 0.82) 38%, rgba(6, 21, 35, 0.32) 78%, rgba(6, 21, 35, 0.1) 100%),
    linear-gradient(180deg, rgba(3, 13, 23, 0.18) 0%, rgba(3, 13, 23, 0.62) 100%);
}

.hero-inner {
  width: min(1180px, calc(100% - 36px));
  min-height: 82svh;
  margin: 0 auto;
  padding: clamp(118px, 18svh, 172px) 0 56px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: #4fb3ff;
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(2.55rem, 5.45vw, 5rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero h1 span {
  display: block;
}

.hero-lead {
  width: min(100%, 660px);
  max-width: 660px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.08rem, 2vw, 1.34rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
}

.button-primary {
  background: #ffffff;
  color: #071827;
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #eaf3ff;
  outline: none;
}

.button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.36);
  color: #ffffff;
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  outline: none;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(740px, 100%);
  margin: 46px 0 0;
  padding: 1px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
}

.hero-facts div {
  padding: 16px 18px;
  background: rgba(7, 24, 39, 0.5);
}

.hero-facts dt {
  color: #7fc7ff;
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.hero-facts dd {
  margin: 4px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 800;
}

.section {
  padding: clamp(64px, 9vw, 112px) 0;
}

.section-inner {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.section-intro {
  background: #ffffff;
}

.intro-grid,
.product-grid,
.security-grid,
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(34px, 7vw, 84px);
  align-items: start;
}

.section h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: 0;
}

.section-lead,
.product-copy p,
.security-list,
.contact-section p {
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.8vw, 1.2rem);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 32px;
}

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

.feature-card {
  min-height: 268px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  border-radius: 8px;
  background: #e8f2ff;
  color: var(--blue);
}

.feature-icon-green {
  background: #e6f5ef;
  color: var(--green);
}

.feature-icon-slate {
  background: #eef2f5;
  color: #40566d;
}

.feature-icon svg {
  width: 25px;
  height: 25px;
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.28rem;
}

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

.product-section {
  background: linear-gradient(180deg, #f5f9fc 0%, #ffffff 100%);
}

.product-copy {
  align-self: center;
}

.product-copy p {
  margin-top: 18px;
}

.text-link {
  display: inline-flex;
  margin-top: 24px;
  color: var(--blue-dark);
  font-weight: 900;
  text-decoration: none;
}

.text-link:hover,
.text-link:focus-visible {
  text-decoration: underline;
  outline: none;
}

.product-visual {
  overflow: hidden;
  border: 1px solid #cddfec;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.visual-topbar {
  display: flex;
  gap: 7px;
  padding: 15px 18px;
  background: #f0f5fa;
  border-bottom: 1px solid #d8e4ef;
}

.visual-topbar span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #8aa1b7;
}

.visual-body {
  display: grid;
  grid-template-columns: 76px 1fr;
  min-height: 374px;
}

.visual-sidebar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 22px 0;
  background: #081d30;
}

.visual-sidebar span {
  width: 28px;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.24);
}

.visual-sidebar .visual-logo-dot {
  width: 34px;
  height: 34px;
  background: #2e93ff;
}

.visual-content {
  padding: clamp(22px, 4vw, 38px);
}

.visual-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.visual-title-row strong {
  display: block;
  font-size: 1.24rem;
}

.visual-title-row small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.visual-status {
  padding: 7px 10px;
  border-radius: 999px;
  background: #e6f5ef;
  color: #1e7355;
  font-size: 0.8rem;
  font-weight: 900;
}

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

.visual-panel {
  min-height: 122px;
  padding: 18px;
  border: 1px solid #d9e6f2;
  border-radius: 8px;
  background: #f8fbfe;
}

.visual-panel.wide {
  grid-column: 1 / -1;
}

.panel-label {
  display: block;
  margin-bottom: 20px;
  color: #34465b;
  font-weight: 900;
}

.panel-line {
  display: block;
  width: 100%;
  height: 9px;
  margin-top: 10px;
  border-radius: 999px;
  background: #d7e7f4;
}

.panel-line.short {
  width: 58%;
}

.panel-check {
  width: 46px;
  height: 46px;
  display: block;
  border-radius: 999px;
  background: radial-gradient(circle at center, #ffffff 0 32%, transparent 33%), #0f8f9a;
  box-shadow: inset 0 0 0 10px #e6f9fb;
}

.security-section {
  background: #071827;
  color: #ffffff;
}

.security-section .section-kicker {
  color: #7fc7ff;
}

.security-section h2 {
  color: #ffffff;
}

.security-list {
  display: grid;
  gap: 12px;
  padding: 0;
  list-style: none;
  color: rgba(255, 255, 255, 0.82);
}

.security-list li {
  position: relative;
  padding-left: 32px;
}

.security-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #4fb3ff;
  box-shadow: 0 0 0 5px rgba(79, 179, 255, 0.14);
}

.contact-section {
  background: #f6fafc;
}

.contact-actions {
  align-self: end;
  display: grid;
  gap: 12px;
}

.contact-link {
  display: grid;
  gap: 3px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  text-decoration: none;
}

.contact-link:hover,
.contact-link:focus-visible {
  border-color: #9fc7ef;
  box-shadow: 0 12px 32px rgba(23, 105, 224, 0.12);
  outline: none;
}

.contact-link span {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 800;
}

.contact-link strong {
  color: var(--blue-dark);
  font-size: clamp(1rem, 2vw, 1.18rem);
  overflow-wrap: anywhere;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #ffffff;
}

.footer-inner {
  width: min(1180px, calc(100% - 36px));
  min-height: 96px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  color: var(--muted);
}

.footer-brand .brand-mark {
  width: 38px;
  height: 38px;
}

@media (max-width: 860px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
    background: rgba(255, 255, 255, 0.95);
  }

  .site-nav {
    display: none;
  }

  .hero,
  .hero-inner {
    min-height: auto;
  }

  .hero-inner {
    padding-top: 132px;
    padding-bottom: 46px;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(3, 13, 23, 0.84) 0%, rgba(3, 13, 23, 0.76) 42%, rgba(3, 13, 23, 0.9) 100%),
      linear-gradient(90deg, rgba(3, 13, 23, 0.78) 0%, rgba(3, 13, 23, 0.28) 100%);
  }

  .hero-facts,
  .intro-grid,
  .product-grid,
  .security-grid,
  .contact-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-facts {
    width: 100%;
  }

  .feature-card {
    min-height: auto;
  }

  .visual-body {
    grid-template-columns: 1fr;
  }

  .visual-sidebar {
    display: none;
  }

  .contact-actions {
    align-self: auto;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 28px 0;
  }
}

@media (max-width: 520px) {
  .brand-mark {
    width: 40px;
    height: 40px;
  }

  .site-header {
    padding: 16px 18px;
  }

  .hero-inner,
  .section-inner,
  .footer-inner {
    width: min(calc(100% - 28px), 1180px);
  }

  .hero h1 {
    font-size: clamp(1.92rem, 8.7vw, 2.32rem);
    line-height: 1.04;
  }

  .hero-lead {
    font-size: 1rem;
    max-width: 32ch;
  }

  .hero-actions {
    width: 100%;
  }

  .button {
    width: 100%;
  }

  .hero-facts div {
    padding: 14px 16px;
  }

  .visual-title-row,
  .visual-panels {
    grid-template-columns: 1fr;
  }

  .visual-title-row {
    display: grid;
  }

  .visual-panel.wide {
    grid-column: auto;
  }
}