:root {
  --bg: #141530;
  --bg-alt: #1b1d3d;
  --panel: #22254d;
  --line: #33386b;
  --cyan: #4dd8e8;
  --amber: #f5b955;
  --text: #eef1f7;
  --dim: #9aa0c7;
  --font-head: "Space Grotesk", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}
.container.narrow { max-width: 820px; }
.center { text-align: center; }

/* ── Buttons ────────────────────────────── */
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 9px;
  font-weight: 600;
  text-decoration: none;
  font-family: var(--font-body);
  transition: filter .15s ease, transform .15s ease;
  cursor: pointer;
}
.btn-primary { background: var(--cyan); color: var(--bg); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn-sm { padding: 9px 18px; }
.btn-lg { padding: 15px 34px; font-size: 17px; }

/* ── Nav ────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(20, 21, 48, 0.85);
  backdrop-filter: blur(10px);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: linear-gradient(135deg, var(--cyan), var(--amber));
}
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 15px; }
.nav-links a { color: var(--dim); text-decoration: none; }
.nav-links a.btn-primary { color: var(--bg); }
.nav-links a:not(.btn):hover { color: var(--text); }

/* ── Hero ───────────────────────────────── */
.hero { padding: clamp(56px, 9vw, 110px) 0 80px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero-copy h1 {
  font-family: var(--font-head);
  font-size: clamp(36px, 6vw, 62px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 700;
  margin: 0 0 22px;
}
.lead {
  font-size: 19px;
  line-height: 1.6;
  color: var(--dim);
  max-width: 520px;
  margin: 0 0 34px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ── Editor ─────────────────────────────── */
.editor {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  font-family: var(--mono);
}
.editor-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}
.dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.dot-r { background: #ff5f57; }
.dot-y { background: #febc2e; }
.dot-g { background: #28c840; }
.editor-file { margin-left: 10px; font-size: 12px; color: var(--dim); font-family: var(--font-body); }
.editor-body { padding: 18px 20px; font-size: 14px; line-height: 1.9; min-height: 190px; }
.editor-body .ln { white-space: pre; opacity: 0; transition: opacity .25s ease; }
.editor-body .ln.show { opacity: 1; }
.editor-body .ln.ghost { color: var(--cyan); font-style: italic; opacity: 0; transition: opacity .4s ease; }
.editor-body .ln.ghost.show { opacity: 0.6; }
.tag {
  margin-left: 12px;
  font-size: 11px;
  color: var(--bg);
  background: var(--cyan);
  border-radius: 5px;
  padding: 2px 7px;
  font-family: var(--font-body);
  font-style: normal;
  vertical-align: middle;
}
.caret {
  display: inline-block;
  width: 8px;
  height: 17px;
  background: var(--cyan);
  margin-left: 2px;
  vertical-align: middle;
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 0%, 50% { opacity: 1; } 51%, 100% { opacity: 0; } }

/* ── Metrics ────────────────────────────── */
.metrics {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 44px 24px;
}
.metric { text-align: center; }
.metric-value {
  font-family: var(--font-head);
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -0.02em;
}
.metric-label { color: var(--dim); margin-top: 6px; font-size: 15px; }

/* ── Sections ───────────────────────────── */
.section { padding: clamp(64px, 9vw, 100px) 0; }
.section-alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-head { margin-bottom: 40px; }
.section-head.center { text-align: center; }
.kicker { color: var(--cyan); font-size: 14px; font-weight: 600; margin-bottom: 10px; }
.section-head h2 {
  font-family: var(--font-head);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.02em;
}
.section-sub {
  color: var(--dim);
  margin: -24px 0 36px;
  max-width: 640px;
  line-height: 1.6;
}

/* ── Cards ──────────────────────────────── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px 26px;
}
.card h3 { font-family: var(--font-head); font-size: 20px; font-weight: 600; margin: 0 0 12px; }
.card p { color: var(--dim); line-height: 1.65; margin: 0; font-size: 15.5px; }

/* ── Commands ───────────────────────────── */
.commands {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.command {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 11px;
}
.command code { color: var(--amber); font-family: var(--mono); font-size: 15px; font-weight: 600; flex-shrink: 0; }
.command span { color: var(--dim); font-size: 15px; }

/* ── Chips ──────────────────────────────── */
.chips { display: flex; flex-wrap: wrap; gap: 14px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 16px;
  font-weight: 500;
  background: var(--panel);
  color: var(--text);
  text-decoration: none;
  transition: border-color .15s ease, transform .15s ease, background .15s ease;
}
.chip:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
  background: var(--steel);
}
.chip-icon { width: 22px; height: 22px; object-fit: contain; flex-shrink: 0; }

/* ── Languages ──────────────────────────── */
.langs { text-align: center; }
.langs-title {
  font-family: var(--font-head);
  font-size: clamp(30px, 5vw, 48px);
  font-weight: 700;
  margin: 0 0 24px;
  letter-spacing: -0.02em;
}
.accent { color: var(--cyan); }
.langs-list { color: var(--dim); max-width: 800px; margin: 0 auto; line-height: 2; font-size: 16px; }

/* ── FAQ ────────────────────────────────── */
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%;
  background: none;
  border: none;
  color: var(--text);
  text-align: left;
  padding: 22px 0;
  font-size: 18px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: var(--font-head);
}
.faq-plus { color: var(--cyan); font-size: 24px; line-height: 1; flex-shrink: 0; transition: transform .2s ease; }
.faq-item.open .faq-plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-item.open .faq-a { max-height: 300px; }
.faq-a p { color: var(--dim); line-height: 1.7; margin: 0; padding-bottom: 22px; max-width: 720px; }
.faq-foot { color: var(--dim); margin-top: 28px; font-size: 15px; }
.faq-foot a { color: var(--cyan); }

/* ── Pricing ────────────────────────────── */
.plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  max-width: 820px;
  margin: 0 auto;
}
.plan {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 34px 30px;
  position: relative;
}
.plan.hl { border-color: var(--amber); }
.plan-badge {
  position: absolute;
  top: -12px;
  left: 30px;
  background: var(--amber);
  color: var(--bg);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
}
.plan h3 { font-family: var(--font-head); font-size: 24px; font-weight: 600; margin: 0 0 6px; }
.plan-note { color: var(--dim); margin: 0 0 20px; font-size: 15px; }
.plan-price { margin-bottom: 24px; display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.plan-price .amount { font-family: var(--font-head); font-size: 32px; font-weight: 700; }
.plan-price .amount.cyan { color: var(--cyan); }
.plan-price .amount.amber { color: var(--amber); }
.plan-price .suffix { color: var(--dim); font-size: 14px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 28px; display: flex; flex-direction: column; gap: 12px; }
.plan li { display: flex; gap: 10px; color: var(--text); font-size: 15px; line-height: 1.45; }
.plan li .check { flex-shrink: 0; }
.plan li .check.cyan { color: var(--cyan); }
.plan li .check.amber { color: var(--amber); }
.plan-cta { display: block; text-align: center; padding: 13px; border-radius: 9px; font-weight: 600; text-decoration: none; }
.plan-cta.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.plan-cta.solid { background: var(--amber); color: var(--bg); border: none; }

/* ── CTA ────────────────────────────────── */
.cta { padding: clamp(72px, 10vw, 110px) 0; text-align: center; }
.cta h2 {
  font-family: var(--font-head);
  font-size: clamp(28px, 5vw, 46px);
  font-weight: 700;
  margin: 0 0 18px;
  letter-spacing: -0.02em;
}
.cta .lead { margin-left: auto; margin-right: auto; }

/* ── Footer ─────────────────────────────── */
.footer { border-top: 1px solid var(--line); padding: 40px 0; color: var(--dim); font-size: 14px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.brand-foot { font-family: var(--font-head); font-weight: 600; color: var(--text); }

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

/* ── Responsive ─────────────────────────── */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: 1fr; gap: 32px; }
  .nav-links a:not(.btn) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .editor-body .ln, .editor-body .ln.ghost { opacity: 1; }
  .editor-body .ln.ghost { opacity: 0.6; }
}


/* ── Marquee (бегущая строка) ───────────── */
.marquee {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-alt);
  overflow: hidden;
  padding: 18px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: flex;
  gap: 40px;
  width: max-content;
  animation: marquee-scroll 32s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-item {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 500;
  color: var(--dim);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 12px;
}
.marquee-icon {
  width: 24px;
  height: 24px;
  object-fit: contain;
  flex-shrink: 0;
}
.marquee-item::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  display: inline-block;
  opacity: 0.6;
}
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
}