:root {
  color-scheme: light;
  --ink: #0a1523;
  --muted: #5c6b7a;
  --placeholder: #a8b2bd;
  --paper: #f4f7fa;
  --panel: #ffffff;
  --line: #d9e2ec;
  --teal: #168897;
  --teal-dark: #0b6675;
  --amber: #f1b84b;
  --navy: #081824;
  --steel: #e9eef4;
  --shadow: 0 20px 55px rgba(8, 24, 36, 0.18);
}

* {
  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;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  color: #ffffff;
  transition: background 180ms ease, box-shadow 180ms ease, padding 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(8, 24, 36, 0.94);
  box-shadow: 0 16px 36px rgba(8, 24, 36, 0.24);
  padding-top: 12px;
  padding-bottom: 12px;
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 8px;
  background: var(--teal);
  color: #ffffff;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1rem;
  letter-spacing: 0;
}

.brand small {
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.78rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.site-nav a {
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: #ffffff;
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
}

.menu-button span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: #ffffff;
}

.hero {
  position: relative;
  display: grid;
  min-height: 92vh;
  align-items: end;
  overflow: hidden;
  background: var(--navy);
  color: #ffffff;
  padding: 140px clamp(20px, 6vw, 84px) 82px;
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 110px;
  content: "";
  background: linear-gradient(180deg, rgba(244, 247, 250, 0), var(--paper));
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background:
    linear-gradient(125deg, rgba(8, 24, 36, 0.93) 10%, rgba(8, 24, 36, 0.65) 54%, rgba(22, 136, 151, 0.64)),
    linear-gradient(90deg, #0d2534, #15535b);
}

.signal-grid {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  opacity: 0.27;
}

.signal-grid span {
  border-right: 1px solid rgba(255, 255, 255, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.product-window {
  position: absolute;
  z-index: 2;
  right: clamp(18px, 6vw, 94px);
  bottom: 9vh;
  width: min(590px, 46vw);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.14);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.window-bar {
  display: flex;
  gap: 8px;
  padding: 15px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.window-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ffffff;
  opacity: 0.66;
}

.window-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  padding: 18px;
}

.metric {
  min-height: 126px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(8, 24, 36, 0.52);
}

.metric.wide {
  grid-column: 1 / -1;
}

.metric small,
.metric strong {
  display: block;
}

.metric small {
  color: rgba(255, 255, 255, 0.72);
  font-weight: 800;
  text-transform: uppercase;
}

.metric strong {
  margin-top: 12px;
  color: #ffffff;
  font-size: clamp(1.2rem, 2vw, 2rem);
  line-height: 1.15;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(720px, 100%);
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--amber);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(4rem, 13vw, 9.5rem);
  line-height: 0.9;
}

.hero-copy {
  max-width: 650px;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(1.1rem, 2.1vw, 1.45rem);
}

.hero-actions,
.contact-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 8px;
  border: 0;
  font-weight: 900;
  font: inherit;
  text-decoration: none;
  cursor: pointer;
}

.button.primary {
  background: var(--amber);
  color: #1f1604;
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #ffffff;
}

.intro,
.band,
.experience,
.security,
.contact,
.pricing {
  padding: clamp(58px, 8vw, 96px) clamp(20px, 6vw, 84px);
}

.intro,
.experience,
.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 5vw, 80px);
  align-items: start;
}

.intro h2,
.experience h2,
.security h2,
.band h2,
.contact h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 4.2rem);
  line-height: 1;
}

.intro > p,
.experience-copy p,
.contact-panel p {
  color: var(--muted);
  font-size: 1.12rem;
}

.band,
.security,
.pricing {
  background: var(--panel);
}

.section-heading {
  display: flex;
  max-width: 1060px;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 34px;
}

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

.feature-card,
.price-card,
.security-list article,
.contact-panel,
.stats div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.feature-card {
  padding: 26px;
}

.buy-form {
  display: grid;
  gap: 22px;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.field-row label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 800;
}

.field-row input {
  min-height: 48px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--ink);
  font: inherit;
}

.field-row input::placeholder {
  color: var(--placeholder);
  opacity: 1;
}

.field-row input::-ms-input-placeholder {
  color: var(--placeholder);
}

.price-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 26px;
}

.price-card.featured {
  border-color: rgba(22, 136, 151, 0.55);
  box-shadow: 0 18px 42px rgba(22, 136, 151, 0.14);
}

.plan-name {
  color: var(--teal-dark);
  font-size: 0.85rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.price-card strong {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  line-height: 1;
}

.price-card strong span {
  color: var(--muted);
  font-size: 1rem;
}

.price-card p,
.price-card li {
  color: var(--muted);
}

.price-card ul {
  display: grid;
  gap: 8px;
  margin: 0 0 auto;
  padding-left: 20px;
}

.checkout-status {
  color: var(--muted);
  font-weight: 800;
}

.feature-icon {
  display: inline-grid;
  width: 44px;
  height: 44px;
  place-items: center;
  margin-bottom: 22px;
  border-radius: 8px;
  background: var(--steel);
  color: var(--teal-dark);
  font-weight: 900;
}

.feature-card h3,
.security-list h3 {
  margin-bottom: 10px;
  font-size: 1.35rem;
}

.feature-card p,
.security-list p {
  color: var(--muted);
}

.stats {
  display: grid;
  gap: 16px;
  margin: 0;
}

.stats div {
  padding: 24px;
}

.stats dt {
  color: var(--teal-dark);
  font-size: clamp(2.6rem, 7vw, 5rem);
  font-weight: 950;
  line-height: 1;
}

.stats dd {
  margin: 8px 0 0;
  color: var(--muted);
}

.security-list article {
  padding: 24px;
}

.contact {
  background: var(--navy);
  color: #ffffff;
}

.contact .section-kicker {
  color: var(--amber);
}

.contact-panel {
  padding: 28px;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.14);
}

.contact-panel p {
  flex: 1 1 280px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.76);
}

.copy-status {
  min-width: 96px;
  color: rgba(255, 255, 255, 0.76);
  font-weight: 800;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  padding: 24px clamp(20px, 6vw, 84px);
  color: rgba(255, 255, 255, 0.76);
  background: #06111a;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: #ffffff;
  font-weight: 800;
  text-decoration: none;
}

.success-page {
  min-height: 100vh;
  background: var(--navy);
}

.success-shell {
  display: grid;
  min-height: 100vh;
  align-content: center;
  gap: 34px;
  padding: clamp(24px, 6vw, 84px);
}

.dark-brand {
  color: #ffffff;
}

.success-card {
  width: min(720px, 100%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: clamp(24px, 5vw, 48px);
  background: #ffffff;
}

.success-card h1 {
  color: var(--ink);
  font-size: clamp(2.5rem, 8vw, 5rem);
}

.licence-result {
  display: grid;
  gap: 12px;
  margin: 24px 0;
}

.licence-result span {
  color: var(--muted);
  font-weight: 900;
}

.licence-result code {
  display: block;
  overflow-wrap: anywhere;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  background: var(--paper);
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 900;
}

.small-note {
  color: var(--muted);
}

.dark-secondary {
  border-color: var(--line);
  color: var(--ink);
}

@media (max-width: 900px) {
  .menu-button {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    right: 18px;
    display: none;
    width: min(280px, calc(100vw - 36px));
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 8px;
    background: rgba(8, 24, 36, 0.97);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 14px;
  }

  .hero {
    display: block;
    min-height: auto;
  }

  .product-window {
    position: relative;
    right: auto;
    bottom: auto;
    width: 100%;
    margin-top: 34px;
    opacity: 0.9;
  }

  .hero-content {
    width: min(720px, 100%);
  }

  .intro,
  .experience,
  .contact,
  .feature-grid,
  .security-list,
  .pricing-grid,
  .field-row {
    grid-template-columns: 1fr;
  }

  .section-heading {
    display: block;
  }
}

@media (max-width: 560px) {
  .brand small {
    display: none;
  }

  h1 {
    font-size: clamp(3.1rem, 20vw, 4.7rem);
  }

  .window-content {
    grid-template-columns: 1fr;
  }

  .metric,
  .metric.wide {
    grid-column: auto;
    min-height: auto;
  }

  .hero-actions .button,
  .contact-panel .button {
    width: 100%;
  }
}