:root {
  --bg: #04040a;
  --bg-elevated: #0b1020;
  --text: #f4fbff;
  --muted: #c5d4de;
  --faint: #93a8b6;
  --cyan: #00ffe0;
  --blue: #00aaff;
  --orange: #ff6200;
  --yellow: #ffe08a;
  --line: rgba(255, 255, 255, 0.14);
  --card: rgba(255, 255, 255, 0.055);
  --danger: #ffb4a8;
  --confirm-bg: rgba(255, 196, 64, 0.12);
  --confirm-line: rgba(255, 208, 92, 0.55);
  --max: 72rem;
  --header: 4.5rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(900px 480px at 12% -10%, rgba(0, 170, 255, 0.22), transparent 60%),
    radial-gradient(820px 520px at 100% 0%, rgba(255, 98, 0, 0.18), transparent 55%),
    var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  overflow-wrap: break-word;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--cyan);
  text-underline-offset: 0.16em;
}

a:hover {
  color: #ffffff;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 0.75rem;
  z-index: 20;
  transform: translateY(-160%);
  background: var(--cyan);
  color: #04120f;
  font-weight: 700;
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  text-decoration: none;
}

.skip-link:focus {
  transform: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(4, 4, 10, 0.82);
  border-bottom: 1px solid var(--line);
}

.header-inner,
.wrap,
.site-footer .wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.header-inner {
  min-height: var(--header);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand:hover {
  color: var(--text);
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: block;
}

.brand-fit {
  color: var(--cyan);
}

.brand-off {
  color: var(--orange);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 650;
}

.nav a[aria-current="page"] {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-underline-offset: 0.28em;
}

main {
  padding: 2.5rem 0 4rem;
}

.hero {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem 2rem;
  align-items: center;
  padding: 1.2rem 0 2.2rem;
}

.hero-icon {
  width: 148px;
  height: 148px;
  border-radius: 32px;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08), 0 18px 50px rgba(0, 0, 0, 0.45);
}

.eyebrow {
  margin: 0 0 0.4rem;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.15;
  letter-spacing: -0.03em;
}

h1 {
  margin: 0 0 0.8rem;
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  font-weight: 850;
}

h2 {
  margin: 2.4rem 0 0.7rem;
  font-size: clamp(1.45rem, 2.4vw, 2rem);
}

h3 {
  margin: 0 0 0.35rem;
  font-size: 1.12rem;
}

.lede,
.page-intro {
  max-width: 42rem;
  color: var(--muted);
  font-size: 1.12rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.3rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 750;
}

.button.primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #041018;
}

.button.primary:hover {
  color: #041018;
  filter: brightness(1.05);
}

.button.secondary {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.button.secondary:hover {
  color: var(--text);
  border-color: var(--cyan);
}

.panel,
.card,
.confirm {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  margin-top: 1rem;
}

.card {
  padding: 1rem 1rem 1.05rem;
}

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

.card p:last-child,
.panel p:last-child {
  margin-bottom: 0;
}

.steps {
  display: grid;
  gap: 0.8rem;
  margin-top: 1rem;
}

.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: start;
  padding: 1rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(0, 255, 224, 0.06), rgba(255, 98, 0, 0.04));
}

.step-num {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: #041018;
  color: var(--cyan);
  font-weight: 800;
}

.panel {
  padding: 1.1rem 1.15rem;
  margin-top: 1rem;
}

.confirm {
  margin: 1rem 0;
  padding: 1rem 1.05rem;
  background: var(--confirm-bg);
  border-color: var(--confirm-line);
}

.confirm-label {
  margin: 0 0 0.35rem;
  color: var(--yellow);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.warning {
  border-color: rgba(255, 98, 0, 0.55);
  background: rgba(255, 98, 0, 0.1);
}

.warning strong {
  color: var(--text);
}

ul {
  padding-left: 1.2rem;
}

li + li {
  margin-top: 0.35rem;
}

.meta {
  color: var(--faint);
  font-size: 0.95rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.4rem 0 2rem;
  color: var(--faint);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.8rem 1.4rem;
}

.site-footer a {
  color: var(--muted);
  margin-right: 0.9rem;
}

@media (max-width: 800px) {
  .hero,
  .grid {
    grid-template-columns: 1fr;
  }

  .hero-icon {
    width: 108px;
    height: 108px;
  }

  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 0.8rem 0;
  }
}

@media (max-width: 520px) {
  .actions,
  .nav {
    width: 100%;
  }

  .button {
    width: 100%;
  }
}