:root {
  --color-bg: #071018;
  --color-surface: #0e1b26;
  --color-surface-alt: #142433;
  --color-text: #edf7ff;
  --color-muted: #9fb2c2;
  --color-primary: #57d8ff;
  --color-primary-dark: #0b7895;
  --color-secondary: #ffb84d;
  --color-accent: #f25f5c;
  --color-border: rgba(151, 214, 255, .22);
  --font-heading: "Space Grotesk", "Manrope", system-ui, sans-serif;
  --font-body: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 28px;
  --shadow-soft: 0 26px 90px rgba(0, 0, 0, .35);
  --container: 1180px;
  --section: clamp(72px, 9vw, 128px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background:
    radial-gradient(circle at 14% 10%, rgba(87, 216, 255, .14), transparent 28rem),
    radial-gradient(circle at 86% 8%, rgba(255, 184, 77, .09), transparent 24rem),
    radial-gradient(circle at 50% 110%, rgba(242, 95, 92, .09), transparent 32rem),
    linear-gradient(180deg, #071018 0%, #091722 48%, #050b12 100%);
  line-height: 1.65;
  min-width: 320px;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle, rgba(237, 247, 255, .55) 0 1px, transparent 1px),
    radial-gradient(circle, rgba(87, 216, 255, .4) 0 1px, transparent 1px);
  background-size: 72px 72px, 119px 119px;
  background-position: 0 0, 28px 21px;
  opacity: .15;
  z-index: -2;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, transparent 0 96%, rgba(87,216,255,.04) 96% 100%);
  background-size: 28px 28px;
  opacity: .2;
  z-index: -1;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: #a7efff; }
p { margin: 0 0 1rem; color: var(--color-muted); }
h1, h2, h3 { font-family: var(--font-heading); line-height: 1.05; margin: 0 0 1rem; letter-spacing: -.035em; }
h1 { font-size: clamp(2.55rem, 7vw, 6.8rem); max-width: 11ch; }
h2 { font-size: clamp(1.75rem, 3.3vw, 3.35rem); }
h3 { font-size: clamp(1.1rem, 1.5vw, 1.45rem); }
ul, ol { margin: 0; padding: 0; }
::selection { background: rgba(87,216,255,.28); color: var(--color-text); }

.container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
.section { padding-block: var(--section); }
.section-tight { padding-block: clamp(54px, 7vw, 88px); }
.dark-band {
  background:
    linear-gradient(135deg, rgba(87,216,255,.09), transparent 34%),
    linear-gradient(180deg, rgba(4,10,16,.72), rgba(7,16,24,.92));
  border-block: 1px solid var(--color-border);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
}
.skip-link {
  position: absolute; left: 16px; top: 12px; transform: translateY(-150%);
  background: var(--color-primary); color: #041019; padding: .7rem 1rem; border-radius: var(--radius-sm); z-index: 100;
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 2px solid var(--color-secondary); outline-offset: 4px; border-radius: 4px; }

.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(7,16,24,.78);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-border);
}
.header-grid { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1rem; min-height: 78px; }
.brand { display: inline-flex; align-items: center; gap: .78rem; color: var(--color-text); }
.brand strong { display:block; font-family: var(--font-heading); letter-spacing: .02em; }
.brand em { display:block; font-family: var(--font-mono); font-size: .68rem; color: var(--color-muted); font-style: normal; text-transform: uppercase; letter-spacing: .12em; }
.main-nav { display:flex; justify-content:center; flex-wrap: wrap; gap: .2rem; }
.nav-link {
  position: relative;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .04em;
  padding: .72rem .82rem;
  border: 1px solid transparent;
}
.nav-link:hover, .nav-link.active { color: var(--color-text); border-color: rgba(87,216,255,.2); background: rgba(87,216,255,.06); }
.nav-link.active::before {
  content:""; position:absolute; left:.7rem; right:.7rem; bottom:.38rem; height:1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}
.header-cta {
  color: #061019; background: var(--color-secondary); padding: .72rem .95rem; border-radius: 999px;
  font-weight: 800; box-shadow: 0 0 0 1px rgba(255,184,77,.2), 0 10px 30px rgba(255,184,77,.12);
}
.header-cta:hover { color:#061019; transform: translateY(-1px); }

.hero { padding: clamp(64px, 9vw, 112px) 0 clamp(70px, 10vw, 130px); position: relative; overflow: hidden; }
.hero-grid, .page-hero-grid { display: grid; grid-template-columns: minmax(0, .93fr) minmax(320px, 1.07fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.hero-copy { position: relative; z-index: 2; }
.eyebrow, .section-kicker {
  font-family: var(--font-mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .16em;
  color: var(--color-primary); margin-bottom: 1rem;
}
.eyebrow span {
  display:inline-block; width: .72rem; height: .72rem; margin-right: .55rem; border-radius:50%;
  background: var(--color-accent); box-shadow: 0 0 22px rgba(242,95,92,.7); vertical-align: -1px;
}
.lead { font-size: clamp(1.05rem, 1.45vw, 1.28rem); max-width: 66ch; color: #c7d7e5; }
.hero-actions { display:flex; gap: .8rem; flex-wrap:wrap; margin-top: 2rem; }
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:.45rem;
  min-height: 48px; padding: .82rem 1.08rem; border-radius: 999px; border: 1px solid var(--color-border);
  font-weight: 850; transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--color-primary); color: #041019; border-color: rgba(87,216,255,.5); box-shadow: 0 16px 44px rgba(87,216,255,.18); }
.btn-primary:hover { color:#041019; background:#8be7ff; }
.btn-secondary { background: rgba(255,184,77,.12); color: #ffd28b; border-color: rgba(255,184,77,.35); }
.btn-secondary:hover { color: #ffe4b6; background: rgba(255,184,77,.18); }
.btn-ghost { color: var(--color-text); background: rgba(237,247,255,.04); }
.btn-ghost:hover { background: rgba(237,247,255,.08); color: var(--color-text); }

/* тематический компонент: орбитальная консоль */
.orbit-console {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: 48% 52% 44% 56% / 58% 43% 57% 42%;
  background:
    radial-gradient(circle at 50% 52%, rgba(87,216,255,.18), transparent 16rem),
    linear-gradient(135deg, rgba(14,27,38,.84), rgba(7,16,24,.55));
  box-shadow: var(--shadow-soft), inset 0 0 0 1px rgba(255,255,255,.04);
  overflow: hidden;
}
.orbit-console::before,
.orbit-console::after {
  content:""; position:absolute; inset: 9%; border: 1px dashed rgba(87,216,255,.35); border-radius: 50%; transform: rotate(-18deg);
}
.orbit-console::after { inset: 22%; border-color: rgba(255,184,77,.34); transform: rotate(18deg); }
.orbit-console img { position: relative; z-index: 1; filter: drop-shadow(0 28px 50px rgba(0,0,0,.35)); }
.console-readout {
  position: absolute; z-index: 3; display:grid; gap:.05rem; min-width: 132px;
  padding: .75rem .85rem; border: 1px solid var(--color-border); background: rgba(7,16,24,.75);
  backdrop-filter: blur(12px); border-radius: var(--radius-md); box-shadow: 0 18px 40px rgba(0,0,0,.25);
}
.console-readout b { color: var(--color-text); font-family: var(--font-mono); }
.console-readout span { color: var(--color-muted); font-size: .82rem; }
.readout-a { top: 14%; left: 6%; }
.readout-b { right: 2%; top: 38%; }
.readout-c { left: 18%; bottom: 12%; }

.split-intro { display:grid; grid-template-columns: .85fr 1.15fr; gap: clamp(1.5rem, 5vw, 4rem); align-items:start; }
.split-intro p:last-child { font-size: 1.08rem; color: #c5d5e1; }

/* тематический компонент: карта миссий */
.mission-map { display:grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.mission-map-head { grid-column: 1 / -1; max-width: 760px; margin-bottom: 1rem; }
.mission-card {
  position: relative; padding: clamp(1.1rem, 2.4vw, 1.8rem); min-height: 280px;
  border: 1px solid var(--color-border);
  background: linear-gradient(180deg, rgba(20,36,51,.72), rgba(8,18,27,.92));
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
  transition: transform .22s ease, border-color .22s ease, background .22s ease;
}
.mission-card::before {
  content:""; position:absolute; inset: 12px; border-top:1px solid rgba(87,216,255,.22); border-left:1px solid rgba(87,216,255,.12); pointer-events:none;
}
.mission-card:hover { transform: translateY(-5px); border-color: rgba(87,216,255,.45); background: linear-gradient(180deg, rgba(24,45,64,.86), rgba(8,18,27,.96)); }
.mission-card-wide { grid-column: span 2; }
.mission-number { font-family: var(--font-mono); color: var(--color-secondary); display:block; margin-bottom: 2.2rem; }
.mission-card a, .teaser-card a, .service-card a, .signal-note a { font-weight: 850; }

/* тематический компонент: панель телеметрии */
.orbit-panel {
  border: 1px solid var(--color-border);
  background:
    linear-gradient(90deg, rgba(87,216,255,.06) 1px, transparent 1px),
    linear-gradient(180deg, rgba(237,247,255,.04), rgba(20,36,51,.66));
  background-size: 22px 22px, auto;
  padding: clamp(1.2rem, 3vw, 2.2rem);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.telemetry-list { list-style: none; display:grid; gap:.8rem; margin: 1.5rem 0; }
.telemetry-list li { display:grid; grid-template-columns: 120px 1fr; gap: .8rem; align-items:start; border-top: 1px solid rgba(151,214,255,.16); padding-top: .8rem; }
.telemetry-list span { color: var(--color-primary); font-family: var(--font-mono); font-size:.8rem; text-transform: uppercase; }
.telemetry-list b { color: var(--color-text); font-weight: 700; }
.compare-grid { display:grid; grid-template-columns: 1fr .95fr; gap: clamp(1.4rem, 4vw, 4rem); align-items:center; }

/* тематический компонент: сигнальная записка */
.signal-note {
  position: relative;
  padding: clamp(1.1rem, 3vw, 2.2rem);
  border: 1px solid rgba(255,184,77,.28);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255,184,77,.1), rgba(14,27,38,.88) 55%);
}
.signal-note::before {
  content:"SIGNAL"; position:absolute; top: -12px; right: 18px; font-family: var(--font-mono); font-size:.7rem; letter-spacing:.18em;
  color:#061019; background: var(--color-secondary); padding:.25rem .5rem; border-radius:999px;
}
.small-note { margin: 1.4rem 0; }

.article-teasers { display:grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.teaser-card {
  display:grid; grid-template-columns: .9fr 1fr; gap: 1rem; align-items:center; padding: 1rem;
  border: 1px solid var(--color-border); background: rgba(14,27,38,.72); min-height: 340px;
}
.angled-card { border-radius: var(--radius-lg) var(--radius-sm) var(--radius-lg) var(--radius-sm); }
.capsule-card { border-radius: 999px var(--radius-lg) var(--radius-lg) 999px; }
.teaser-card img { border-radius: inherit; background: rgba(87,216,255,.04); }

.page-hero { padding: clamp(58px, 8vw, 104px) 0; border-bottom: 1px solid var(--color-border); }
.tech-hero, .mission-hero, .guide-hero, .contact-hero {
  background:
    radial-gradient(circle at 84% 22%, rgba(87,216,255,.14), transparent 24rem),
    linear-gradient(180deg, rgba(7,16,24,.55), rgba(7,16,24,.9));
}
.hero-diagram { border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: rgba(14,27,38,.55); box-shadow: var(--shadow-soft); }
.article-grid { display:grid; grid-template-columns: 220px minmax(0, 1fr); gap: clamp(2rem, 5vw, 5rem); align-items:start; }
.article-index { position: sticky; top: 100px; display:grid; gap:.5rem; border-left:1px solid var(--color-border); padding-left: 1rem; }
.article-index a { font-family: var(--font-mono); color: var(--color-muted); font-size:.85rem; }
.article-index a:hover { color: var(--color-primary); }
.article-body { max-width: 850px; }
.article-body section + section { margin-top: clamp(3rem, 7vw, 6rem); }
.article-body p { font-size: 1.05rem; }
.module-stack { display:grid; grid-template-columns: repeat(4, 1fr); gap:.7rem; margin-top: 1.6rem; }
.module-stack div {
  padding: 1rem; border:1px solid var(--color-border); background: rgba(20,36,51,.68); border-radius: var(--radius-sm); min-height: 120px;
}
.module-stack b { display:block; color: var(--color-primary); font-family: var(--font-mono); }
.module-stack span { color: var(--color-muted); }
.radar-spec { display:grid; grid-template-columns: 240px 1fr; gap: 1.5rem; align-items:center; margin-top: 1.5rem; }
.radar-ring {
  aspect-ratio: 1; border-radius:50%;
  background:
    radial-gradient(circle, transparent 0 24%, rgba(87,216,255,.15) 25% 26%, transparent 27% 48%, rgba(87,216,255,.22) 49% 50%, transparent 51%),
    conic-gradient(from 25deg, rgba(87,216,255,.55), transparent 28%, rgba(255,184,77,.42), transparent 60%, rgba(242,95,92,.38), transparent 82%, rgba(87,216,255,.55));
  border: 1px solid var(--color-border);
  position: relative;
}
.radar-ring::after { content:""; position:absolute; left:50%; top:50%; width:7px; height:7px; border-radius:50%; background: var(--color-secondary); box-shadow:0 0 24px var(--color-secondary); }
.radar-spec ul { list-style:none; display:grid; gap:.8rem; }
.radar-spec li { border-bottom:1px solid rgba(151,214,255,.16); padding-bottom:.75rem; }
.radar-spec b { display:block; color:var(--color-text); }
.radar-spec span { color:var(--color-muted); }
.next-step-grid { display:grid; grid-template-columns: 1fr auto; gap: 1rem; align-items:center; }

.mission-catalog { display:grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.service-card {
  position: relative; padding: clamp(1.1rem, 3vw, 2rem); border:1px solid var(--color-border); background: rgba(14,27,38,.72);
  border-radius: var(--radius-md); overflow:hidden;
}
.service-card::after {
  content:""; position:absolute; right:-64px; bottom:-64px; width: 180px; height:180px; border: 1px dashed rgba(87,216,255,.24); border-radius:50%;
}
.service-card-feature { grid-row: span 2; background: linear-gradient(145deg, rgba(87,216,255,.11), rgba(14,27,38,.82)); }
.service-icon { width: 72px; height:72px; display:grid; place-items:center; border:1px solid var(--color-border); border-radius: 22px; background: rgba(7,16,24,.5); margin-bottom:1.3rem; }
.check-list { margin: 1rem 0 1rem; padding-left: 1.2rem; color: var(--color-muted); }
.selector-grid { display:grid; grid-template-columns: .8fr 1.2fr; gap: clamp(1rem, 4vw, 4rem); align-items:start; }
.selector-table { border:1px solid var(--color-border); border-radius: var(--radius-lg); overflow:hidden; background: rgba(14,27,38,.7); }
.selector-table div { display:grid; grid-template-columns: 1fr 220px; gap:1rem; padding: 1rem 1.2rem; border-bottom:1px solid rgba(151,214,255,.16); }
.selector-table div:last-child { border-bottom:0; }
.selector-table span { color: var(--color-muted); }
.selector-table b { color: var(--color-secondary); font-family: var(--font-mono); }
.timeline { text-align:center; }
.timeline h2 { max-width: 850px; margin-inline:auto; }
.orbit-steps { list-style:none; display:grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin: 2rem 0; text-align:left; counter-reset: step; }
.orbit-steps li { position: relative; padding: 1.2rem; border:1px solid var(--color-border); border-radius: 50% 50% var(--radius-md) var(--radius-md); min-height: 220px; background: rgba(14,27,38,.82); }
.orbit-steps li::before { counter-increment: step; content: "0" counter(step); position:absolute; top: 1rem; right: 1rem; font-family:var(--font-mono); color:rgba(87,216,255,.55); }
.orbit-steps b { display:block; color:var(--color-text); font-size:1.25rem; margin: 4.4rem 0 .6rem; }
.orbit-steps span { color:var(--color-muted); }

.brief-grid { display:grid; grid-template-columns: 360px 1fr; gap: clamp(1rem, 4vw, 4rem); align-items:start; }
.brief-sticky { position: sticky; top: 104px; }
.brief-list { list-style:none; display:grid; gap: 1rem; counter-reset: brief; }
.brief-list li {
  position:relative; padding: 1.35rem 1.35rem 1.35rem 5rem;
  border:1px solid var(--color-border); border-radius: var(--radius-md); background: rgba(14,27,38,.72);
}
.brief-list li::before {
  counter-increment: brief; content: counter(brief); position:absolute; left:1.2rem; top:1.2rem; width:2.5rem; height:2.5rem; display:grid; place-items:center;
  border-radius:50%; background: rgba(87,216,255,.13); border:1px solid rgba(87,216,255,.34); color:var(--color-primary); font-family:var(--font-mono);
}
.mistakes-grid { display:grid; grid-template-columns: .85fr repeat(3, 1fr); gap: 1rem; align-items:stretch; }
.mistake-card { border:1px solid rgba(242,95,92,.25); background: linear-gradient(180deg, rgba(242,95,92,.08), rgba(14,27,38,.72)); border-radius: var(--radius-md); padding:1.3rem; }
.faq-grid { display:grid; grid-template-columns: .7fr 1.3fr; gap: clamp(1rem, 4vw, 4rem); }
.faq-list { display:grid; gap:.8rem; }
details { border:1px solid var(--color-border); border-radius: var(--radius-md); background: rgba(14,27,38,.72); padding: 1rem 1.1rem; }
summary { cursor:pointer; font-weight:850; color:var(--color-text); }
details p { margin-top: .8rem; }

.contact-grid { display:grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); gap: clamp(1rem, 4vw, 4rem); align-items:start; }
/* тематический компонент: капсула формы */
.capsule-form {
  display:grid; gap: 1rem; padding: clamp(1.2rem, 3vw, 2.2rem);
  border: 1px solid var(--color-border); border-radius: 42px 42px var(--radius-lg) var(--radius-lg);
  background:
    linear-gradient(90deg, rgba(87,216,255,.04) 1px, transparent 1px),
    rgba(14,27,38,.82);
  background-size: 20px 20px;
  box-shadow: var(--shadow-soft);
}
label { display:grid; gap:.42rem; color: var(--color-text); font-weight: 800; }
input, select, textarea {
  width:100%; border:1px solid rgba(151,214,255,.28); border-radius: var(--radius-sm); background: rgba(5,11,18,.72); color: var(--color-text);
  padding: .82rem .9rem; font: inherit;
}
input::placeholder, textarea::placeholder { color: rgba(159,178,194,.72); }
textarea { resize: vertical; }
.form-note { font-size:.92rem; margin:0; }
.contact-aside { display:grid; gap: 1rem; }
.trust-grid { display:grid; grid-template-columns: 1fr .9fr; gap: 2rem; align-items:center; }
.telemetry-mini { display:grid; gap:.6rem; align-content:start; }
.telemetry-mini span {
  display:block; font-family: var(--font-mono); color: var(--color-muted); font-size:.78rem; border:1px solid rgba(151,214,255,.18); padding:.65rem .75rem; background: rgba(7,16,24,.45); border-radius:999px;
}
.large-mini span { border-radius: var(--radius-sm); }

.site-footer { border-top:1px solid var(--color-border); padding: clamp(44px, 6vw, 72px) 0; background: rgba(4,10,16,.74); }
.footer-grid { display:grid; grid-template-columns: 1.2fr .7fr .8fr; gap: 2rem; align-items:start; }
.footer-brand { margin-bottom: 1rem; }
.footer-title { font-size: 1.1rem; letter-spacing:0; }
.footer-links { list-style:none; display:grid; gap:.5rem; }
.footer-links a { color:var(--color-muted); }
.footer-links a:hover { color:var(--color-primary); }

@media (max-width: 980px) {
  .header-grid { grid-template-columns: 1fr; padding-block: .8rem; }
  .main-nav { justify-content:flex-start; overflow-x:auto; padding-bottom:.2rem; }
  .header-cta { justify-self:start; }
  .hero-grid, .page-hero-grid, .split-intro, .compare-grid, .article-grid, .selector-grid, .brief-grid, .faq-grid, .contact-grid, .trust-grid { grid-template-columns: 1fr; }
  .orbit-console { min-height: 420px; }
  .mission-map, .mission-catalog, .article-teasers, .mistakes-grid, .footer-grid { grid-template-columns: 1fr; }
  .mission-card-wide, .service-card-feature { grid-column:auto; grid-row:auto; }
  .article-index, .brief-sticky { position: static; }
  .module-stack, .orbit-steps { grid-template-columns: repeat(2, 1fr); }
  .teaser-card { grid-template-columns: 1fr; }
  .capsule-card { border-radius: var(--radius-lg); }
}

@media (max-width: 640px) {
  .container { width: min(100% - 28px, var(--container)); }
  .site-header { position: static; }
  .brand em { display:none; }
  h1 { font-size: clamp(2.35rem, 17vw, 4.5rem); max-width: 10ch; }
  .hero, .page-hero { padding-block: 48px; }
  .orbit-console { min-height: 330px; border-radius: var(--radius-lg); }
  .console-readout { position: static; margin:.35rem; min-width: auto; justify-self: stretch; }
  .orbit-console { display:flex; flex-direction:column; padding: 1rem; }
  .module-stack, .orbit-steps, .radar-spec { grid-template-columns: 1fr; }
  .telemetry-list li, .selector-table div { grid-template-columns: 1fr; }
  .brief-list li { padding: 4.5rem 1rem 1rem; }
  .orbit-steps li { border-radius: var(--radius-md); min-height: auto; }
  .orbit-steps b { margin-top: 2rem; }
  .hero-actions { flex-direction:column; align-items:stretch; }
  .btn { width:100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}