:root {
  --bg: #0B1220;
  --bg-raise: #101A2E;
  --bg-card: #121E36;
  --line: #1E2C47;
  --ink: #E6EDF7;
  --ink-dim: #93A4BE;
  --accent: #22D3EE;
  --accent-soft: rgba(34, 211, 238, 0.12);
  --amber: #F59E0B;
  --amber-soft: rgba(245, 158, 11, 0.14);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --radius: 12px;
  --radius-lg: 18px;
  --wrap: 1120px;
  --shadow: 0 18px 40px rgba(2, 8, 20, 0.55);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
}

h1, h2, h3 {
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 4.4vw, 3.1rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
}

h3 {
  font-size: 1.12rem;
}

.mono {
  font-family: var(--font-mono);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 18, 32, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav-bar {
  display: flex;
  align-items: center;
  min-height: 64px;
  gap: 16px;
}

.nav-bar nav {
  margin-left: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.brand:hover {
  text-decoration: none;
}

.brand svg {
  width: 28px;
  height: 28px;
}

.brand em {
  font-style: normal;
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 8px;
  color: var(--ink-dim);
  font-weight: 600;
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--ink);
  background: var(--bg-raise);
  text-decoration: none;
}

.nav-links a[aria-current="page"] {
  color: var(--ink);
  background: var(--bg-raise);
}

.nav-links a[aria-current="page"] {
  color: var(--ink);
}

.nav-links a.nav-cta {
  color: #06121C;
  background: var(--accent);
  margin-left: 8px;
}

.nav-links a.nav-cta:hover {
  background: #4ADEF0;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-raise);
  color: var(--ink);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.lang-switch {
  position: relative;
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-raise);
  color: var(--ink-dim);
  font: inherit;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}

.lang-btn:hover {
  color: var(--ink);
  border-color: var(--accent);
}

.lang-btn svg {
  width: 16px;
  height: 16px;
  flex: none;
}

.lang-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 150px;
  list-style: none;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 6px;
  box-shadow: var(--shadow);
  z-index: 60;
}

.lang-switch.open .lang-menu {
  display: block;
}

.lang-menu a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  border-radius: 8px;
  color: var(--ink-dim);
  font-weight: 600;
  font-size: 0.92rem;
}

.lang-menu a:hover {
  color: var(--ink);
  background: var(--bg-raise);
  text-decoration: none;
}

.lang-menu a[aria-current="true"] {
  color: var(--accent);
}

.lang-unavailable {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 40;
  min-width: 180px;
  padding: 10px 12px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  font-size: 0.82rem;
  color: var(--amber);
  white-space: nowrap;
}

.lang-unavailable:empty {
  display: none;
}

.hero {
  padding: 72px 0 64px;
  background:
    radial-gradient(700px 380px at 82% -10%, rgba(34, 211, 238, 0.14), transparent 65%),
    radial-gradient(520px 320px at 8% 110%, rgba(245, 158, 11, 0.08), transparent 60%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid rgba(34, 211, 238, 0.4);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  margin-bottom: 20px;
}

.hero p.lead {
  margin: 18px 0 28px;
  color: var(--ink-dim);
  font-size: 1.1rem;
  max-width: 34em;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 26px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 1rem;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #06121C;
}

.btn-primary:hover {
  background: #4ADEF0;
}

.btn-ghost {
  border-color: var(--line);
  color: var(--ink);
  background: transparent;
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 26px;
  color: var(--ink-dim);
  font-size: 0.9rem;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-meta svg {
  width: 16px;
  height: 16px;
  color: var(--amber);
}

.terminal-frame {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #0A101D;
  box-shadow: var(--shadow);
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
}

.terminal-frame svg {
  display: block;
  width: 100%;
  height: auto;
}

.section {
  padding: 72px 0;
}

.section-alt {
  background: var(--bg-raise);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  max-width: 620px;
  margin-bottom: 40px;
}

.section-head p {
  margin-top: 12px;
  color: var(--ink-dim);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}

.card .icon-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 16px;
}

.card .icon-chip svg {
  width: 22px;
  height: 22px;
}

.card p {
  margin-top: 10px;
  color: var(--ink-dim);
  font-size: 0.95rem;
}

.region-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 8px;
}

.region-pill {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.region-pill:hover {
  border-color: var(--accent);
}

.region-flagbox {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--amber-soft);
  color: var(--amber);
  flex: none;
}

.region-flagbox svg {
  width: 20px;
  height: 20px;
}

.region-pill strong {
  display: block;
  font-size: 1.02rem;
}

.region-pill small {
  color: var(--ink-dim);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.sku-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.sku-info {
  padding: 36px;
}

.sku-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--amber);
  background: var(--amber-soft);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 6px;
  padding: 3px 10px;
  margin-bottom: 14px;
}

.spec-list {
  list-style: none;
  margin: 18px 0 26px;
  display: grid;
  gap: 10px;
}

.spec-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-dim);
  font-size: 0.95rem;
}

.spec-list svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex: none;
}

.sku-price-side {
  background: #0A101D;
  border-left: 1px solid var(--line);
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
}

.price-line {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}

.price-line:last-of-type {
  border-bottom: none;
}

.price-line .cycle {
  color: var(--ink-dim);
  font-size: 0.9rem;
}

.price-line .amount {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
}

.price-line .amount b {
  color: var(--accent);
  font-size: 1.4rem;
}

.price-note {
  color: var(--ink-dim);
  font-size: 0.82rem;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  counter-reset: step;
}

.step {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 26px 26px 26px;
}

.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--amber);
  margin-bottom: 12px;
}

.step p {
  margin-top: 8px;
  color: var(--ink-dim);
  font-size: 0.95rem;
}

.final-cta {
  text-align: center;
  padding: 80px 0;
}

.final-cta p {
  color: var(--ink-dim);
  margin: 14px auto 30px;
  max-width: 36em;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #080D18;
  padding: 56px 0 32px;
  color: var(--ink-dim);
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.footer-grid h3 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink);
  margin-bottom: 14px;
}

.footer-grid ul {
  list-style: none;
  display: grid;
  gap: 10px;
}

.footer-grid a {
  color: var(--ink-dim);
}

.footer-grid a:hover {
  color: var(--accent);
}

.footer-about p {
  margin-top: 12px;
  max-width: 28em;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.82rem;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .card-grid, .region-bar, .steps-grid {
    grid-template-columns: 1fr;
  }

  .sku-panel {
    grid-template-columns: 1fr;
  }

  .sku-price-side {
    border-left: none;
    border-top: 1px solid var(--line);
  }

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

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg-raise);
    border-bottom: 1px solid var(--line);
    padding: 12px 20px 20px;
    gap: 4px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    width: 100%;
  }

  .nav-links a.nav-cta {
    margin-left: 0;
    margin-top: 8px;
    justify-content: center;
  }
}

@media (max-width: 520px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 56px 0;
  }

  .hero {
    padding: 52px 0 48px;
  }
}