:root {
  color-scheme: dark;
  --bg: #0d0e12;
  --panel: #13151b;
  --text: #fff;
  --muted: #94a3b8;
  --line: rgba(255, 255, 255, 0.12);
  --green: #00ff66;
  --mono: SFMono-Regular, Consolas, "Liberation Mono", monospace;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 30px;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    16px/1.7 Inter,
    "Segoe UI",
    Arial,
    sans-serif;
}
a {
  color: inherit;
  text-decoration: none;
  transition:
    color 0.2s,
    border-color 0.2s,
    background 0.2s;
}
a:hover {
  color: var(--green);
}
a:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 4px;
}
.wrap {
  width: min(1440px, calc(100% - 96px));
  margin: auto;
}
.skip {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--green);
  color: var(--bg);
  padding: 12px;
  z-index: 50;
}
.skip:focus {
  top: 10px;
}
.top {
  border-bottom: 1px solid var(--line);
  font: 10px var(--mono);
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.top .wrap {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
}
.top strong {
  font-weight: 400;
  color: var(--green);
}
.head {
  border-bottom: 1px solid var(--line);
}
.head-inner {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
}
.logo {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.05em;
}
.logo span {
  color: var(--green);
}
.nav {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
  font: 11px var(--mono);
  color: var(--muted);
}
.nav a {
  padding: 8px 0;
  border-bottom: 1px solid transparent;
}
.nav a:hover {
  border-color: var(--green);
}
.hero {
  padding: 80px 0 66px;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: end;
}
.tag {
  font: 10px/1.6 var(--mono);
  letter-spacing: 0.14em;
  color: var(--green);
  text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(52px, 7.4vw, 108px);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.075em;
  margin: 25px 0;
  max-width: 1000px;
}
.hero h1 span {
  color: var(--green);
}
.lead {
  font-size: 17px;
  color: var(--muted);
  max-width: 670px;
  margin: 0;
  line-height: 1.8;
}
.hero-aside {
  border-left: 1px solid var(--line);
  padding-left: 25px;
  color: var(--muted);
  font: 11px/1.8 var(--mono);
}
.hero-aside strong {
  display: block;
  color: var(--text);
  font:
    700 20px/1.3 Inter,
    "Segoe UI",
    Arial,
    sans-serif;
  letter-spacing: -0.03em;
  margin: 12px 0;
}
.section {
  padding: 68px 0;
  border-bottom: 1px solid var(--line);
}
.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 30px;
}
.section-head h2 {
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.055em;
  margin: 12px 0 0;
}
.section-head p {
  color: var(--muted);
  font: 11px/1.8 var(--mono);
  max-width: 370px;
  margin: 0;
}
.topics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.topic {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 295px;
  padding: 32px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}
.topic:before {
  position: absolute;
  right: 15px;
  top: -30px;
  content: attr(data-number);
  font-size: 160px;
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.1em;
  color: rgba(255, 255, 255, 0.025);
  pointer-events: none;
}
.topic:hover {
  background: #142019;
  border-color: var(--green);
}
.topic-meta {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  color: var(--green);
  font: 10px/1.6 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.topic h3 {
  font-size: clamp(27px, 3.1vw, 43px);
  line-height: 1.08;
  letter-spacing: -0.05em;
  margin: 38px 0 15px;
  max-width: 500px;
}
.topic p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 470px;
  margin: 0 0 25px;
}
.topic-link {
  font: 11px var(--mono);
  margin-top: auto;
  text-transform: uppercase;
}
.topic-link b {
  color: var(--green);
  font-size: 20px;
  margin-left: 12px;
}
.about {
  display: grid;
  grid-template-columns: 0.45fr 1fr;
  gap: 60px;
}
.about h2 {
  font-size: 36px;
  letter-spacing: -0.05em;
  line-height: 1.1;
  margin: 15px 0;
}
.about-text {
  color: var(--muted);
  max-width: 790px;
}
.about-text p {
  margin: 0 0 16px;
}
.inline-link {
  color: var(--text);
  border-bottom: 1px solid var(--line);
}
.inline-link:hover {
  border-color: var(--green);
}
.footer {
  padding: 32px 0;
  color: var(--muted);
  font: 10px/1.8 var(--mono);
}
.footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}
.category-hero {
  padding: 65px 0 50px;
  border-bottom: 1px solid var(--line);
}
.breadcrumb {
  font: 10px/1.6 var(--mono);
  color: var(--muted);
  margin-bottom: 30px;
}
.breadcrumb a {
  border-bottom: 1px solid var(--line);
}
.category-hero h1 {
  font-size: clamp(42px, 6vw, 80px);
  line-height: 1;
  letter-spacing: -0.065em;
  max-width: 1000px;
  margin: 20px 0;
}
.category-hero p {
  max-width: 720px;
  color: var(--muted);
  font-size: 16px;
}
.category-meta {
  font: 11px var(--mono);
  color: var(--green);
  margin-top: 30px;
}
.events {
  padding: 0 0 70px;
}
.event {
  display: grid;
  grid-template-columns: 200px 1fr 180px;
  gap: 30px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
}
.event-date {
  font: 11px/1.7 var(--mono);
  color: var(--green);
}
.event h2 {
  font-size: clamp(23px, 2.4vw, 32px);
  line-height: 1.18;
  letter-spacing: -0.045em;
  margin: 0 0 14px;
}
.event p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}
.event .context-note {
  font-size: 12px;
  color: #b5c1cf;
  border-left: 1px solid var(--green);
  padding-left: 12px;
  margin-top: 15px;
}
.event-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
  font: 10px/1.5 var(--mono);
  text-transform: uppercase;
}
.event-actions a {
  border-bottom: 1px solid var(--line);
  padding: 6px 0;
}
.event-actions a:hover {
  border-color: var(--green);
}
.event-actions .open {
  color: var(--green);
}
.context-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  padding: 30px 0;
  font: 11px/1.8 var(--mono);
}
.context-nav a {
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}
.context-nav a:hover {
  color: var(--green);
  border-color: var(--green);
}
@media (max-width: 900px) {
  .wrap {
    width: calc(100% - 48px);
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 60px 0;
  }
  .hero-aside {
    max-width: 500px;
  }
  .event {
    grid-template-columns: 140px 1fr;
    gap: 18px;
  }
  .event-actions {
    grid-column: 2;
    flex-direction: row;
    gap: 20px;
    flex-wrap: wrap;
  }
  .about {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}
@media (max-width: 600px) {
  .wrap {
    width: calc(100% - 32px);
  }
  .top .wrap span:last-child {
    display: none;
  }
  .head-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    padding: 18px 0;
  }
  .nav {
    gap: 14px;
    font-size: 10px;
  }
  .hero h1 {
    font-size: clamp(49px, 11.5vw, 70px);
  }
  .section {
    padding: 50px 0;
  }
  .section-head {
    display: block;
  }
  .section-head p {
    margin-top: 15px;
  }
  .topics {
    grid-template-columns: 1fr;
  }
  .topic {
    min-height: 240px;
    padding: 24px;
  }
  .topic:before {
    font-size: 130px;
  }
  .topic h3 {
    margin-top: 30px;
  }
  .event {
    display: block;
    padding: 26px 0;
  }
  .event-date {
    margin-bottom: 12px;
  }
  .event-actions {
    margin-top: 18px;
  }
  .category-hero {
    padding: 45px 0 35px;
  }
  .category-hero h1 {
    font-size: clamp(39px, 10vw, 60px);
  }
  .footer .wrap {
    display: block;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    transition: none !important;
  }
}

/* Заголовок главной страницы */
.hero h1 span {
  display: block;
}
.hero h1 small {
  display: block;
  color: var(--muted);
  font:
    500 clamp(18px, 2.3vw, 30px) / 1.3 Inter,
    "Segoe UI",
    Arial,
    sans-serif;
  letter-spacing: -0.025em;
  margin-top: 22px;
}

/* Иллюстрация главного экрана */
.hero {
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: clamp(30px, 5vw, 75px);
}
.hero-visual {
  margin: 0;
  min-width: 0;
  border: 1px solid var(--line);
  background: #0b100d;
}
.hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1/1;
  object-fit: cover;
}
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    width: min(100%, 600px);
  }
}

/* Движение щупалец на главном экране */
.hero-visual {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.hero-visual img {
  animation: hero-drift 16s ease-in-out infinite alternate;
  transform-origin: 60% 55%;
}
.hero-motion {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  mix-blend-mode: screen;
}
.motion-arm {
  stroke-width: 4;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  opacity: 0;
  animation:
    arm-enter 4.8s cubic-bezier(0.22, 0.65, 0.26, 1) forwards,
    arm-glimmer 7s ease-in-out 5s infinite alternate;
}
.arm-two {
  stroke-width: 5;
  animation-delay: 0.65s, 5.65s;
}
.arm-three {
  stroke-width: 3;
  animation-delay: 1.3s, 6.3s;
}
@keyframes arm-enter {
  0% {
    stroke-dashoffset: 100;
    opacity: 0;
  }
  15% {
    opacity: 0.5;
  }
  100% {
    stroke-dashoffset: 0;
    opacity: 0.34;
  }
}
@keyframes arm-glimmer {
  0% {
    opacity: 0.2;
  }
  100% {
    opacity: 0.5;
  }
}
@keyframes hero-drift {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.045);
  }
}
@media (prefers-reduced-motion: reduce) {
  .hero-visual img {
    animation: none;
  }
  .hero-motion {
    display: none;
  }
}

/* Компактная шапка и удобная навигация на мобильных устройствах */
@media (max-width: 600px) {
  .top .wrap {
    min-height: 32px;
    align-items: center;
    padding: 7px 0;
  }

  .top strong {
    font-size: 9px;
    line-height: 1.4;
    overflow-wrap: anywhere;
  }

  .head-inner {
    min-height: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0;
  }

  .head-inner .logo {
    display: flex;
    align-items: center;
    min-height: 58px;
    font-size: 19px;
    line-height: 1;
  }

  .head-inner .nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    width: 100%;
    border-top: 1px solid var(--line);
    font-size: 11px;
    line-height: 1.35;
  }

  .head-inner .nav a {
    min-width: 0;
    min-height: 46px;
    display: flex;
    align-items: center;
    padding: 10px 12px 10px 0;
    overflow-wrap: anywhere;
    border-bottom: 0;
  }

  .head-inner .nav a + a {
    border-left: 1px solid var(--line);
    padding-left: 14px;
  }
}

/* Пояснение об информационном характере сайта */
.footer .footer-notice {
  display: block;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font:
    12px/1.7 Inter,
    "Segoe UI",
    Arial,
    sans-serif;
}
.footer-notice p {
  margin: 0;
  max-width: 800px;
}
.footer-about {
  display: inline-block;
  margin-left: 10px;
  color: var(--text);
  border-bottom: 1px solid var(--line);
}
.footer-about:hover {
  color: var(--green);
  border-color: var(--green);
}

/* Переходы к обзору и информации о проекте */
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}
.hero-action {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 48px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  font: 11px/1.4 var(--mono);
  color: var(--text);
}
.hero-action span {
  color: var(--green);
  font-size: 17px;
}
.hero-action:hover {
  border-color: var(--green);
  color: var(--green);
}
.hero-action-primary {
  border-color: var(--green);
}
@media (max-width: 600px) {
  .head-inner .home-nav a:nth-child(odd) {
    border-left: 0;
    padding-left: 0;
  }
  .head-inner .home-nav a:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }
  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .hero-action {
    min-width: 0;
    gap: 8px;
    padding: 10px;
  }
}