:root {
  --bg: #07111f;
  --bg-soft: #0b1728;
  --panel: rgba(10, 20, 39, 0.78);
  --panel-strong: #0f1b31;
  --text: #e5eefc;
  --muted: #9bb0cd;
  --line: rgba(148, 163, 184, 0.18);
  --brand: #6ee7f9;
  --brand-2: #a78bfa;
  --success: #8ef1cc;
  --warning: #f8c77f;
  --shadow: 0 24px 70px rgba(2, 6, 23, 0.45);
  --radius: 24px;
  --radius-sm: 16px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(34, 211, 238, 0.16), transparent 32%),
    radial-gradient(circle at top right, rgba(167, 139, 250, 0.18), transparent 28%),
    linear-gradient(180deg, #050b16 0%, #07111f 40%, #0b1220 100%);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

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

code,
pre {
  font-family: "SFMono-Regular", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.container {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: rgba(5, 11, 22, 0.68);
  border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand__mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.1);
}

.brand__text {
  font-size: 1.02rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  color: var(--muted);
  font-size: 0.95rem;
  padding: 10px 12px;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.nav a:hover,
.nav a:focus-visible {
  background: rgba(148, 163, 184, 0.1);
  color: var(--text);
  transform: translateY(-1px);
}

.nav a.nav__lang,
.nav a.nav__repo {
  border: 1px solid rgba(148, 163, 184, 0.18);
}

.hero {
  padding: 56px 0 26px;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 32px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border: 1px solid rgba(110, 231, 249, 0.18);
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.6);
  color: #c7f9ff;
  font-size: 0.92rem;
  margin-bottom: 18px;
}

.eyebrow__dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  box-shadow: 0 0 18px rgba(110, 231, 249, 0.65);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.6rem, 5vw, 4.85rem);
  line-height: 1.03;
  letter-spacing: -0.04em;
}

.hero__lede {
  margin: 20px 0 0;
  max-width: 700px;
  color: var(--muted);
  font-size: clamp(1.06rem, 2.1vw, 1.28rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 12px 30px rgba(2, 6, 23, 0.25);
}

.button--primary {
  color: #04111d;
  background: linear-gradient(135deg, var(--brand), #d3f9ff);
}

.button--secondary {
  color: var(--text);
  border-color: rgba(110, 231, 249, 0.28);
  background: rgba(15, 23, 42, 0.48);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.stat-pill {
  padding: 16px 16px 14px;
  border-radius: 18px;
  background: rgba(8, 18, 35, 0.72);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.stat-pill__value {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.stat-pill__label {
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 3px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero__right {
  display: grid;
  gap: 18px;
}

.visual {
  overflow: hidden;
}

.visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.visual__caption {
  padding: 18px 22px 22px;
}

.visual__caption strong {
  display: block;
  font-size: 1.05rem;
}

.visual__caption span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

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

.note-card {
  padding: 18px;
  border-radius: 20px;
  background: rgba(15, 23, 42, 0.78);
  border: 1px solid rgba(148, 163, 184, 0.16);
}

.note-card strong {
  display: block;
  font-size: 1rem;
}

.note-card span {
  display: block;
  color: var(--muted);
  margin-top: 8px;
  font-size: 0.94rem;
}

.section {
  padding: 42px 0;
}

.section__head {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

.section__kicker {
  color: var(--brand);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.section__head h2 {
  margin: 0;
  font-size: clamp(1.95rem, 3vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.section__head p {
  margin: 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 1.04rem;
}

.grid-3,
.grid-2,
.grid-4 {
  display: grid;
  gap: 18px;
}

.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  padding: 24px;
  border-radius: var(--radius);
  background: rgba(10, 20, 39, 0.72);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.card h3,
.card h4 {
  margin: 0 0 10px;
  font-size: 1.18rem;
  letter-spacing: -0.02em;
}

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

.card ul {
  margin: 14px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.card li + li {
  margin-top: 8px;
}

.code-card {
  padding: 0;
  overflow: hidden;
}

.code-card__label {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  background: rgba(3, 8, 18, 0.62);
}

.code-card__label::before,
.code-card__label::after {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.3);
}

.code-card__label::before {
  background: #f97316;
}

.code-card__label::after {
  background: #22c55e;
}

.code-card pre {
  margin: 0;
  padding: 22px;
  overflow: auto;
  color: #d6ecff;
  background: rgba(4, 10, 19, 0.94);
  font-size: 0.94rem;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.metric {
  padding: 24px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.9), rgba(7, 17, 31, 0.85));
  border: 1px solid rgba(110, 231, 249, 0.16);
  box-shadow: var(--shadow);
}

.metric strong {
  display: block;
  font-size: 1.7rem;
  letter-spacing: -0.04em;
}

.metric span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.compare-card {
  position: relative;
  overflow: hidden;
}

.compare-card::after {
  content: "";
  position: absolute;
  inset: auto -15% -50% auto;
  width: 180px;
  height: 180px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(110, 231, 249, 0.18), transparent 68%);
}

.compare-card__eyebrow {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(110, 231, 249, 0.12);
  color: #c9fbff;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.compare-card__score {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.compare-card__meta {
  margin-top: 8px;
  color: var(--muted);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.step {
  padding: 22px;
  border-radius: 22px;
  background: rgba(10, 20, 39, 0.74);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(110, 231, 249, 0.18), rgba(167, 139, 250, 0.22));
  border: 1px solid rgba(110, 231, 249, 0.2);
  color: #dffbff;
  font-weight: 700;
  margin-bottom: 16px;
}

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

.fit {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.fit .card ul {
  margin-top: 10px;
}

.fit .card.fit--good {
  border-color: rgba(110, 231, 249, 0.22);
}

.fit .card.fit--bad {
  border-color: rgba(248, 199, 127, 0.22);
}

.faq {
  display: grid;
  gap: 16px;
}

.faq details {
  padding: 20px 22px;
  border-radius: 20px;
  background: rgba(10, 20, 39, 0.7);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq p {
  margin: 12px 0 0;
  color: var(--muted);
}

.connect-grid {
  align-items: stretch;
}

.connect-card {
  display: flex;
  flex-direction: column;
}

.connect-card__eyebrow {
  display: inline-flex;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(110, 231, 249, 0.12);
  color: #c9fbff;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.connect-card__meta {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.93rem;
}

.connect-card .button {
  width: 100%;
  margin-top: 18px;
}

.contact-strip {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(10, 20, 39, 0.62);
  border: 1px solid rgba(148, 163, 184, 0.16);
  color: var(--muted);
}

.inline-link {
  color: #dffbff;
  text-decoration: underline;
  text-decoration-color: rgba(110, 231, 249, 0.55);
  text-underline-offset: 4px;
}

.inline-link:hover,
.inline-link:focus-visible {
  color: var(--text);
}

.cta {
  padding: 26px;
  border-radius: 30px;
  background:
    linear-gradient(135deg, rgba(110, 231, 249, 0.12), rgba(167, 139, 250, 0.12)),
    rgba(10, 20, 39, 0.78);
  border: 1px solid rgba(110, 231, 249, 0.18);
  box-shadow: var(--shadow);
}

.cta h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  letter-spacing: -0.03em;
}

.cta p {
  margin: 12px 0 0;
  color: var(--muted);
  max-width: 760px;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 22px;
}

.footer {
  padding: 34px 0 54px;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  flex-wrap: wrap;
  color: var(--muted);
}

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

.footer__links a:hover,
.footer__links a:focus-visible {
  color: var(--text);
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(10, 20, 39, 0.72);
  border: 1px solid rgba(148, 163, 184, 0.16);
  color: #dcecff;
  font-size: 0.9rem;
}

.badge--success { border-color: rgba(142, 241, 204, 0.24); }
.badge--brand { border-color: rgba(110, 231, 249, 0.24); }
.badge--warning { border-color: rgba(248, 199, 127, 0.24); }

@media (max-width: 1080px) {
  .hero__grid,
  .grid-3,
  .grid-4,
  .metrics,
  .steps,
  .hero__stats,
  .hero__notes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .site-header__inner {
    align-items: flex-start;
    padding: 12px 0;
  }

  .nav {
    gap: 6px;
  }

  .hero {
    padding-top: 34px;
  }

  .hero__grid,
  .grid-2,
  .grid-3,
  .grid-4,
  .metrics,
  .steps,
  .fit,
  .hero__stats,
  .hero__notes {
    grid-template-columns: 1fr;
  }

  .button,
  .nav a {
    width: 100%;
  }

  .hero__actions,
  .cta__actions {
    flex-direction: column;
  }

  .footer__inner {
    flex-direction: column;
  }
}