:root {
  color-scheme: dark;
  font-family: "Avenir Next", Avenir, "Segoe UI Variable", "Segoe UI", system-ui, sans-serif;
  font-synthesis: none;
  --vault-black: #070c0a;
  --vault-panel: #101a16;
  --vault-line: #27473b;
  --vault-ink: #edf7f2;
  --vault-muted: #9aafa5;
  --vault-emerald: #2fe3a0;
  --vault-holo: #86dfff;
  --vault-alert: #f4bd63;
}

* { box-sizing: border-box; }

html {
  min-width: 320px;
  min-height: 100%;
  background: var(--vault-black);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--vault-ink);
  background:
    radial-gradient(circle at 50% 44%, rgb(47 227 160 / 8%), transparent 34rem),
    linear-gradient(rgb(134 223 255 / 2%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(134 223 255 / 2%) 1px, transparent 1px),
    var(--vault-black);
  background-size: auto, 36px 36px, 36px 36px, auto;
  line-height: 1.55;
}

a { color: var(--vault-holo); }

button, a {
  transition: color 150ms ease, border-color 150ms ease, background 150ms ease,
    transform 150ms ease;
}

:focus-visible {
  outline: 2px solid var(--vault-holo);
  outline-offset: 4px;
}

.vault-shell {
  display: grid;
  width: min(100% - 32px, 760px);
  min-height: 100vh;
  margin: 0 auto;
  place-items: center;
  padding: 40px 0;
}

.vault-card {
  position: relative;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--vault-line);
  background: rgb(16 26 22 / 96%);
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
  box-shadow: 0 28px 90px rgb(0 0 0 / 34%);
}

.vault-card::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(var(--vault-holo), var(--vault-emerald));
  content: "";
}

.vault-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px clamp(22px, 5vw, 44px);
  border-bottom: 1px solid var(--vault-line);
}

.vault-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--vault-ink);
  text-decoration: none;
}

.vault-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--vault-emerald);
  color: var(--vault-emerald);
  font: 700 11px/1 "SFMono-Regular", Menlo, Consolas, monospace;
  letter-spacing: .12em;
  clip-path: polygon(0 0, 78% 0, 100% 22%, 100% 100%, 22% 100%, 0 78%);
}

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

.vault-brand strong {
  font-size: .9rem;
  letter-spacing: .01em;
}

.vault-brand small {
  margin-top: 1px;
  color: var(--vault-muted);
  font-size: .68rem;
}

.vault-state {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--vault-emerald);
  font: 700 .65rem/1 "SFMono-Regular", Menlo, Consolas, monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.vault-state::before {
  width: 9px;
  height: 9px;
  border: 2px solid currentColor;
  content: "";
  transform: rotate(45deg);
}

.vault-content {
  padding: clamp(30px, 7vw, 62px) clamp(22px, 7vw, 56px) clamp(26px, 6vw, 48px);
}

.vault-kicker {
  margin: 0 0 12px;
  color: var(--vault-emerald);
  font: 700 .67rem/1.4 "SFMono-Regular", Menlo, Consolas, monospace;
  letter-spacing: .13em;
  text-transform: uppercase;
}

h1 {
  max-width: 620px;
  margin: 0;
  font-size: clamp(2rem, 7vw, 4rem);
  line-height: .98;
  letter-spacing: -.052em;
}

.delivery-body {
  max-width: 600px;
  margin-top: 28px;
  color: #c3d4cc;
}

.home-intro {
  max-width: 600px;
  margin: 0;
  color: #c3d4cc;
  font-size: 1rem;
}

.home-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 32px;
  border: 1px solid var(--vault-line);
  background: var(--vault-line);
}

.home-feature {
  min-width: 0;
  padding: 18px;
  background: var(--vault-panel);
}

.home-feature-index {
  display: block;
  margin-bottom: 22px;
  color: var(--vault-emerald);
  font: 700 .64rem/1 "SFMono-Regular", Menlo, Consolas, monospace;
  letter-spacing: .12em;
}

.home-feature h2 {
  margin: 0;
  font-size: .9rem;
  letter-spacing: -.01em;
}

.home-feature p {
  margin: 8px 0 0;
  color: var(--vault-muted);
  font-size: .76rem;
}

.home-note {
  margin: 28px 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--vault-holo);
  color: var(--vault-ink);
  background: rgb(134 223 255 / 6%);
  font-size: .82rem;
}

.delivery-body > p:first-child {
  padding: 15px 17px;
  border-left: 2px solid var(--vault-alert);
  color: var(--vault-ink);
  background: rgb(244 189 99 / 8%);
}

.delivery-body time {
  color: var(--vault-holo);
  font-family: "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: .83rem;
}

.download-form { margin: 28px 0 0; }

.download-button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 13px 22px;
  border: 1px solid var(--vault-emerald);
  border-radius: 0;
  color: var(--vault-black);
  background: var(--vault-emerald);
  cursor: pointer;
  font: inherit;
  font-size: .9rem;
  font-weight: 800;
  line-height: 1.2;
}

.download-button:hover {
  background: #73edbd;
  transform: translateY(-1px);
}

.language-switch {
  display: flex;
  gap: 10px;
  margin: 28px 0 0;
  font-size: .78rem;
}

.language-switch a {
  padding: 5px 0;
  text-underline-offset: 4px;
}

.vault-support {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: end;
  padding: 20px clamp(22px, 7vw, 56px);
  border-top: 1px solid var(--vault-line);
  color: var(--vault-muted);
  background: rgb(7 12 10 / 50%);
  font-size: .76rem;
}

.vault-support p { margin: 0; }

.support-links {
  display: flex;
  gap: 14px;
  white-space: nowrap;
}

@media (max-width: 560px) {
  .vault-shell { width: min(100% - 20px, 760px); padding: 18px 0; }
  .vault-head { align-items: flex-start; }
  .vault-state { margin-top: 5px; font-size: .58rem; }
  .home-grid { grid-template-columns: 1fr; }
  .vault-support { grid-template-columns: 1fr; }
  .support-links { white-space: normal; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}