/* Изолированные стили; внешние библиотеки, аналитика и шрифты не подключаются. */
:root {
  --accent:#ffc36a;
  --bg:#19120c;
  --card:#281c13;
  --line:#513822;
  --fg:#f3f6f3;
  --muted:#adbbb7;
  --max:1150px;
}

* {
  box-sizing:border-box
}

html {
  scroll-behavior:smooth
}

body {
  margin:0;
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  background:var(--bg);
  color:var(--fg);
  -webkit-font-smoothing:antialiased
}

a {
  color:inherit
}

a:focus-visible,button:focus-visible,summary:focus-visible {
  outline:3px solid var(--accent);
  outline-offset:4px
}

.container {
  width:min(var(--max),calc(100% - 44px));
  margin-inline:auto
}

.skip {
  position:absolute;
  top:-100px;
  left:1rem;
  background:var(--accent);
  color:#111;
  padding:.5rem;
  z-index:30
}

.skip:focus {
  top:1rem
}

.site-header {
  position:sticky;
  top:0;
  z-index:20;
  background:color-mix(in srgb,var(--bg) 90%,transparent);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line)
}

.header-inner {
  min-height:74px;
  display:flex;
  align-items:center;
  gap:24px;
  justify-content:space-between
}

.logo {
  font-weight:900;
  letter-spacing:-.05em;
  font-size:24px;
  text-decoration:none;
  white-space:nowrap
}

.logo i {
  color:var(--accent);
  font-style:normal
}

nav {
  display:flex;
  align-items:center;
  gap:22px
}

nav a {
  text-decoration:none;
  color:var(--muted);
  font-size:14px
}

nav a:hover {
  color:var(--fg)
}

.btn {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:12px;
  padding:13px 22px;
  text-decoration:none;
  font-weight:800;
  font-size:15px;
  transition:transform .18s ease,background-color .18s ease
}

.btn:hover {
  transform:translateY(-2px)
}

.btn-primary {
  background:var(--accent);
  color:#101411
}

.btn-ghost {
  border:1px solid var(--line);
  color:var(--fg);
  background:var(--card)
}

.btn-small {
  padding:10px 15px;
  font-size:13px
}

.menu-toggle {
  display:none;
  background:none;
  color:var(--fg);
  border:1px solid var(--line);
  border-radius:10px;
  padding:9px 12px;
  cursor:pointer
}

.hero {
  position:relative;
  isolation:isolate;
  overflow:hidden;
  padding:112px 0 88px;
  border-bottom:1px solid var(--line)
}

.hero:before {
  content:"";
  position:absolute;
  width:640px;
  height:640px;
  right:-160px;
  top:-240px;
  z-index:-1;
  border-radius:50%;
  background:radial-gradient(circle,color-mix(in srgb,var(--accent) 30%,transparent),transparent 67%);
  filter:blur(8px)
}

.hero-inner {
  display:grid;
  grid-template-columns:1.16fr .84fr;
  gap:54px;
  align-items:center
}

.eyebrow {
  font-size:12px;
  letter-spacing:.19em;
  text-transform:uppercase;
  color:var(--accent);
  font-weight:900
}

h1,h2,h3,p {
  overflow-wrap:break-word
}

h1 {
  font-size:clamp(44px,5.3vw,76px);
  line-height:1.06;
  letter-spacing:-.06em;
  margin:18px 0 25px;
  max-width:950px
}

h2 {
  font-size:clamp(29px,3.4vw,47px);
  line-height:1.14;
  letter-spacing:-.045em;
  margin:14px 0 25px
}

h3 {
  font-size:21px;
  line-height:1.25;
  margin:0 0 13px;
  letter-spacing:-.025em
}

.lead {
  font-size:18px;
  line-height:1.75;
  color:var(--muted);
  max-width:680px
}

.cta-row {
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px
}

.hero-note {
  font-size:12px;
  color:var(--muted);
  margin-top:24px;
  max-width:550px
}

.hero-panel {
  border:1px solid var(--line);
  border-radius:26px;
  padding:27px;
  background:linear-gradient(150deg,color-mix(in srgb,var(--accent) 12%,var(--card)),var(--card));
  box-shadow:0 30px 80px #0002;
  transform:rotate(1deg)
}

.terminal-top {
  display:flex;
  align-items:center;
  gap:7px;
  border-bottom:1px solid var(--line);
  padding-bottom:17px;
  margin-bottom:18px
}

.dot {
  height:9px;
  width:9px;
  background:var(--accent);
  border-radius:50%
}

.dot:nth-child(2) {
  opacity:.65
}

.dot:nth-child(3) {
  opacity:.3
}

.terminal-name {
  margin-left:auto;
  color:var(--muted);
  font-size:12px;
  letter-spacing:.08em
}

.terminal-line {
  display:block;
  margin:12px 0;
  color:var(--muted);
  font-size:13px
}

.terminal-line strong {
  color:var(--fg)
}

.terminal-key {
  display:inline-block;
  padding:4px 9px;
  border:1px solid var(--line);
  border-radius:6px;
  color:var(--accent);
  font-size:12px;
  margin:6px 5px 3px 0
}

.stats {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin-top:31px
}

.stat {
  padding:17px;
  border:1px solid var(--line);
  background:var(--card);
  border-radius:12px
}

.stat strong {
  display:block;
  color:var(--accent);
  font-size:19px
}

.stat span {
  font-size:12px;
  color:var(--muted)
}

section.block {
  padding:92px 0;
  border-bottom:1px solid var(--line)
}

.section-intro {
  max-width:780px;
  margin-bottom:33px
}

.section-intro p {
  color:var(--muted);
  font-size:17px
}

.grid {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:17px
}

.feature {
  padding:27px;
  border:1px solid var(--line);
  border-radius:18px;
  background:var(--card)
}

.feature .num {
  font-size:12px;
  letter-spacing:.14em;
  color:var(--accent);
  font-weight:900;
  margin-bottom:20px
}

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

.feature h3 {
  font-size:19px
}

.timeline {
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:15px
}

.step {
  border-left:2px solid var(--accent);
  padding:10px 15px 10px 22px
}

.step b {
  color:var(--accent);
  font-size:28px
}

.step p {
  color:var(--muted);
  font-size:14px
}

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

.article {
  padding:30px;
  border-radius:20px;
  border:1px solid var(--line);
  background:var(--card)
}

.article p {
  color:var(--muted);
  margin:0 0 16px
}

.article p:last-child {
  margin:0
}

.article h3 {
  font-size:23px
}

.article-label {
  display:inline-block;
  color:var(--accent);
  font-size:12px;
  font-weight:800;
  letter-spacing:.16em;
  margin-bottom:15px
}

.examples {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px
}

.example {
  padding:25px;
  border-radius:14px;
  background:color-mix(in srgb,var(--accent) 8%,var(--card));
  border-top:3px solid var(--accent)
}

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

.pricing {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:13px
}

.price {
  padding:20px 23px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px
}

.price strong {
  font-size:25px;
  color:var(--accent)
}

.price small {
  display:block;
  color:var(--muted);
  font-size:12px
}

.note {
  border-left:3px solid var(--accent);
  padding:14px 18px;
  margin:24px 0;
  background:color-mix(in srgb,var(--accent) 7%,var(--card));
  border-radius:0 12px 12px 0;
  color:var(--muted)
}

.glossary {
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px
}

.glossary>div {
  padding:18px 20px;
  border-bottom:1px solid var(--line)
}

.glossary dt {
  font-weight:800
}

.glossary dd {
  margin:6px 0 0;
  color:var(--muted)
}

.faq {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px 20px
}

details {
  border:1px solid var(--line);
  background:var(--card);
  border-radius:13px;
  padding:16px 19px;
  align-self:start
}

summary {
  cursor:pointer;
  font-weight:800;
  line-height:1.45;
  list-style:none;
  display:flex;
  justify-content:space-between;
  gap:10px
}

summary::-webkit-details-marker {
  display:none
}

summary:after {
  content:"+";
  font-size:22px;
  color:var(--accent);
  line-height:1
}

details[open] summary:after {
  content:"−"
}

details p {
  font-size:14px;
  color:var(--muted);
  margin:12px 0 4px
}

.closing {
  padding:65px 0 90px;
  text-align:center
}

.closing-inner {
  padding:48px;
  border-radius:24px;
  background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 13%,var(--card)),var(--card));
  border:1px solid var(--line)
}

.closing h2 {
  margin:0 0 14px
}

.closing p {
  color:var(--muted);
  margin:0 auto 25px;
  max-width:690px
}

footer {
  padding:36px 0;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:13px
}

.footer-inner {
  display:flex;
  justify-content:space-between;
  gap:28px;
  align-items:start
}

.footer-inner p {
  max-width:780px;
  margin:8px 0
}

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

.footer-links a {
  text-decoration:underline;
  text-underline-offset:3px
}

body.tone-violet .hero-panel {
  transform:rotate(-1.6deg);
  border-radius:34px
}

body.tone-amber .hero {
  background:linear-gradient(115deg,#211405,transparent 60%)
}

body.tone-amber .price:nth-child(2) {
  outline:2px solid var(--accent)
}

body.tone-cyan .feature {
  border-radius:4px 22px 4px 22px
}

body.tone-azure .article:nth-child(even) {
  background:color-mix(in srgb,var(--accent) 7%,var(--card))
}

body.tone-mint .hero-inner {
  grid-template-columns:1.24fr .76fr
}

body.tone-coral .hero {
  background:linear-gradient(135deg,#fff4ed,var(--bg))
}

body.tone-coral .hero-panel {
  box-shadow:0 18px 60px #a57b6333
}

body.tone-coral .btn-primary {
  color:#25150d
}

body.tone-coral .stat strong {
  color:#b64b31
}

body.tone-coral .eyebrow {
  color:#b64b31
}

@media(max-width:1000px) {
  .hero-inner {
    grid-template-columns:1fr;
    gap:35px
  }

  .hero-panel {
    transform:none!important;
    max-width:720px
  }

  .timeline {
    grid-template-columns:repeat(2,1fr)
  }

  .grid,.examples,.pricing {
    grid-template-columns:repeat(2,minmax(0,1fr))
  }

  nav {
    gap:12px
  }

  nav a {
    font-size:12px
  }

}

@media(max-width:740px) {
  .container {
    width:min(var(--max),calc(100% - 30px))
  }

  .header-inner {
    min-height:65px
  }

  .menu-toggle {
    display:inline-block
  }

  .header-btn {
    display:none
  }

  nav {
    position:absolute;
    top:65px;
    left:0;
    right:0;
    background:var(--bg);
    display:none;
    flex-direction:column;
    align-items:stretch;
    padding:15px 20px 23px;
    border-bottom:1px solid var(--line);
    gap:0
  }

  nav[data-open="true"] {
    display:flex
  }

  nav a {
    font-size:15px;
    padding:10px 0
  }

  .hero {
    padding:70px 0 55px
  }

  h1 {
    font-size:clamp(39px,10vw,56px)
  }

  section.block {
    padding:65px 0
  }

  .stats,.grid,.timeline,.articles,.examples,.pricing,.glossary,.faq {
    grid-template-columns:1fr
  }

  .stat {
    padding:12px 15px
  }

  .closing-inner {
    padding:34px 21px
  }

  .footer-inner {
    flex-direction:column
  }

  .hero-panel {
    padding:20px
  }

}

@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto
  }

  .btn {
    transition:none
  }

}