:root {
  --c-blue: #00E5FF;
  --c-purple: #9D00FF;
  --c-pink: #FF2A6D;
  --c-silver: #AABBCD;
  --c-bg: #0B0E14;
  --c-base: #1A1D2A;
  --c-text: #F5F5F7;
  --c-muted: #8A8FA0;
  --c-success: #3E8E7E;
  --c-warning: #D56B4E;
  --header-height: 72px;
  --header-height-mobile: 60px;
  --container: 1280px;
  --content-width: 960px;
  --transition: 160ms ease-out;
  --font-heading: "Orbitron", "Exo 2", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  background-color: var(--c-bg);
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  color: var(--c-text);
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4, p, ul, ol, figure {
  margin-top: 0;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.12;
  letter-spacing: 0.02em;
  color: var(--c-text);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.75rem);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.45rem, 3vw, 2.5rem);
}

h3 {
  font-size: clamp(1.05rem, 1.8vw, 1.4rem);
}

p {
  max-width: 68ch;
}

a {
  color: var(--c-blue);
  text-decoration-skip-ink: auto;
}

address {
  font-style: normal;
}

::selection {
  background: var(--c-blue);
  color: var(--c-bg);
}

:focus-visible {
  outline: 2px solid var(--c-blue);
  outline-offset: 3px;
  box-shadow: 0 0 0 5px rgba(0, 229, 255, 0.18);
  border-radius: 2px;
}

#main-content {
  scroll-margin-top: calc(var(--header-height) + 20px);
}

body.menu-open {
  overflow: hidden;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 120;
  padding: 10px 14px;
  background: var(--c-blue);
  color: var(--c-bg);
  font-weight: 700;
  text-decoration: none;
  border-radius: 2px;
  transform: translateY(-240%);
  transition: transform var(--transition);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(180deg, rgba(11, 14, 20, 0.98), rgba(26, 29, 42, 0.96));
  border-bottom: 1px solid rgba(0, 229, 255, 0.22);
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.45);
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-blue), var(--c-purple) 55%, var(--c-pink));
  z-index: 2;
}

.site-header__inner {
  position: relative;
  max-width: var(--container);
  height: var(--header-height);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--c-text);
  text-decoration: none;
  flex: 0 0 auto;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-purple));
  color: var(--c-bg);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  border-radius: 3px;
  line-height: 1;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-text);
}

.brand__sub {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-silver);
}

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 14px;
  padding-left: 16px;
  border-left: 1px solid rgba(0, 229, 255, 0.18);
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 2px;
}

.site-nav__link {
  position: relative;
  display: block;
  padding: 8px 9px;
  color: var(--c-text);
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  border-radius: 2px;
  transition: color var(--transition), background var(--transition), text-shadow var(--transition);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 9px;
  right: 9px;
  bottom: 2px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-blue), var(--c-purple));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 180ms ease-out;
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--c-blue);
  background: rgba(0, 229, 255, 0.06);
}

.site-nav__link:hover::after,
.site-nav__link:focus-visible::after {
  transform: scaleX(1);
}

.site-nav__link[aria-current="page"] {
  color: var(--c-blue);
  text-shadow: 0 0 12px rgba(0, 229, 255, 0.55);
}

.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.6);
}

.site-nav__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 4px;
  padding-left: 14px;
  border-left: 1px solid rgba(170, 187, 205, 0.22);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid rgba(0, 229, 255, 0.4);
  border-radius: 3px;
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  color: var(--c-blue);
  border-color: var(--c-blue);
  background: rgba(0, 229, 255, 0.06);
}

.nav-toggle__box {
  position: relative;
  display: block;
  width: 20px;
  height: 14px;
}

.nav-toggle__bar {
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: top 180ms ease-out, transform 180ms ease-out, opacity 140ms ease-out;
}

.nav-toggle__bar:nth-child(1) {
  top: 0;
}

.nav-toggle__bar:nth-child(2) {
  top: 6px;
}

.nav-toggle__bar:nth-child(3) {
  top: 12px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  top: 6px;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  top: 6px;
  transform: rotate(-45deg);
}

.nav-toggle__label {
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: inherit;
}

.site-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  z-index: 3;
  pointer-events: none;
}

.site-progress__inner {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--c-blue), var(--c-purple), var(--c-pink));
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.7);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 3px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.btn--sm {
  padding: 8px 14px;
  font-size: 0.82rem;
}

.btn--primary {
  background: var(--c-blue);
  color: var(--c-bg);
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.35);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: #6cf2ff;
  color: var(--c-bg);
  box-shadow: 0 0 26px rgba(0, 229, 255, 0.5);
}

.btn--ghost {
  background: transparent;
  color: var(--c-blue);
  border-color: rgba(0, 229, 255, 0.6);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: rgba(0, 229, 255, 0.1);
  color: var(--c-blue);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.22);
}

.btn--pink {
  background: var(--c-pink);
  color: #ffffff;
  box-shadow: 0 0 18px rgba(255, 42, 109, 0.4);
}

.btn--pink:hover,
.btn--pink:focus-visible {
  background: #ff527f;
  color: #ffffff;
  box-shadow: 0 0 28px rgba(255, 42, 109, 0.55);
}

.site-footer {
  position: relative;
  margin-top: clamp(64px, 10vw, 120px);
  background:
    radial-gradient(circle at 12% 0%, rgba(157, 0, 255, 0.16), transparent 32%),
    radial-gradient(circle at 90% 10%, rgba(0, 229, 255, 0.1), transparent 28%),
    linear-gradient(180deg, var(--c-bg) 0%, #06080C 100%);
  border-top: 1px solid rgba(0, 229, 255, 0.22);
}

.site-footer::before {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--c-pink), var(--c-purple) 40%, var(--c-blue) 82%, transparent);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: clamp(24px, 4vw, 48px);
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(36px, 6vw, 56px) 24px 32px;
}

.brand--footer .brand__mark {
  width: 38px;
  height: 38px;
  font-size: 0.8rem;
}

.brand--footer .brand__title {
  font-size: 1rem;
}

.site-footer__statement {
  margin: 16px 0 0;
  max-width: 42ch;
  color: var(--c-silver);
  font-size: 0.9rem;
}

.site-footer__trust {
  margin: 14px 0 0;
  max-width: 46ch;
  padding-left: 12px;
  border-left: 2px solid var(--c-warning);
  color: var(--c-muted);
  font-size: 0.8rem;
}

.site-footer__heading {
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-silver);
  border-left: 2px solid var(--c-purple);
  padding-left: 10px;
}

.site-footer__links {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.site-footer a {
  color: var(--c-silver);
  text-decoration: none;
  transition: color var(--transition), padding-left var(--transition);
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--c-blue);
  padding-left: 3px;
}

.site-footer__contact .contact-line {
  display: block;
  color: var(--c-silver);
  font-size: 0.9rem;
}

.site-footer__contact .contact-line + .contact-line {
  margin-top: 8px;
}

.contact-line--note {
  color: var(--c-warning) !important;
  font-size: 0.82rem !important;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 24px;
  border-top: 1px solid rgba(170, 187, 205, 0.12);
  color: var(--c-muted);
  font-size: 0.8rem;
}

.site-footer__bottom > span:last-child {
  margin-left: auto;
}

.page-container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

.page-width-sm {
  max-width: var(--content-width);
  margin-inline: auto;
}

.page-section {
  padding-block: clamp(48px, 8vw, 96px);
}

.page-section--tight {
  padding-block: clamp(32px, 5vw, 56px);
}

.section-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  margin-bottom: 24px;
}

.section-heading__index {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  color: var(--c-purple);
}

.section-heading__title {
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.section-heading__sub {
  margin-left: auto;
  max-width: 38ch;
  color: var(--c-silver);
  font-size: 0.9rem;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  font-size: 0.86rem;
  color: var(--c-silver);
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.breadcrumbs li + li::before {
  content: "／";
  color: var(--c-silver);
}

.breadcrumbs a {
  color: var(--c-blue);
  text-decoration: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(16px, 2vw, 24px);
}

.grid__span-4,
.grid__span-5,
.grid__span-6,
.grid__span-7,
.grid__span-8,
.grid__span-12 {
  grid-column: span 12;
  min-width: 0;
}

@media (min-width: 720px) {
  .grid__span-4 { grid-column: span 4; }
  .grid__span-5 { grid-column: span 5; }
  .grid__span-6 { grid-column: span 6; }
  .grid__span-7 { grid-column: span 7; }
  .grid__span-8 { grid-column: span 8; }
  .grid__span-12 { grid-column: span 12; }
}

.card {
  position: relative;
  padding: clamp(20px, 3vw, 28px);
  background: linear-gradient(145deg, rgba(26, 29, 42, 0.96), rgba(11, 14, 20, 0.92));
  border: 1px solid rgba(0, 229, 255, 0.18);
  border-radius: 4px;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 18px;
  height: 18px;
  background: linear-gradient(225deg, transparent 50%, rgba(0, 229, 255, 0.65) 50%);
  border-radius: 0 0 0 3px;
}

.card--purple {
  border-color: rgba(157, 0, 255, 0.45);
}

.card--purple::after {
  background: linear-gradient(225deg, transparent 50%, rgba(157, 0, 255, 0.75) 50%);
}

.card--pink {
  border-color: rgba(255, 42, 109, 0.35);
}

.card--pink::after {
  background: linear-gradient(225deg, transparent 50%, rgba(255, 42, 109, 0.75) 50%);
}

.card__title {
  margin-bottom: 8px;
}

.card__text {
  margin-bottom: 0;
  color: var(--c-silver);
}

.img-frame {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 220px;
  background:
    radial-gradient(circle at 30% 20%, rgba(157, 0, 255, 0.35), transparent 60%),
    linear-gradient(135deg, rgba(0, 229, 255, 0.08), rgba(11, 14, 20, 0.92));
  border: 1px solid rgba(0, 229, 255, 0.24);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
  overflow: hidden;
}

.img-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 32%, rgba(0, 229, 255, 0.18) 46%, transparent 58%);
  pointer-events: none;
}

.img-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid rgba(157, 0, 255, 0.5);
  background: rgba(157, 0, 255, 0.1);
  color: var(--c-silver);
  border-radius: 2px;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.tag--pink {
  border-color: rgba(255, 42, 109, 0.45);
  background: rgba(255, 42, 109, 0.1);
  color: var(--c-pink);
}

.tag--success {
  border-color: rgba(62, 142, 126, 0.55);
  background: rgba(62, 142, 126, 0.12);
  color: var(--c-success);
}

.tag--warning {
  border-color: rgba(213, 107, 78, 0.55);
  background: rgba(213, 107, 78, 0.12);
  color: var(--c-warning);
}

@media (max-width: 1100px) {
  .site-nav__link {
    padding: 8px 6px;
    font-size: 0.82rem;
  }

  .site-nav {
    gap: 10px;
    padding-left: 12px;
  }

  .site-nav__actions {
    gap: 6px;
    margin-left: 0;
    padding-left: 10px;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: var(--header-height-mobile);
  }

  .site-header__inner {
    height: var(--header-height-mobile);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height-mobile);
    right: 0;
    bottom: 0;
    width: min(420px, 100%);
    margin: 0;
    padding: 24px;
    background: rgba(11, 14, 20, 0.98);
    border-left: 1px solid rgba(0, 229, 255, 0.42);
    border-top: 1px solid rgba(157, 0, 255, 0.5);
    box-shadow: -18px 0 48px rgba(0, 0, 0, 0.5);
    transform: translateX(105%);
    visibility: hidden;
    pointer-events: none;
    transition: transform 260ms ease-out, visibility 0s linear 260ms;
    overflow-y: auto;
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav[data-open] {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
    transition: transform 260ms ease-out, visibility 0s;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .site-nav__link {
    padding: 14px 12px;
    font-size: 1rem;
    border-bottom: 1px solid rgba(170, 187, 205, 0.1);
    border-radius: 0;
  }

  .site-nav__link::after {
    left: 12px;
    right: 12px;
    bottom: 0;
  }

  .site-nav__actions {
    margin: 12px 0 0;
    padding: 20px 0 0;
    border-left: 0;
    border-top: 1px solid rgba(0, 229, 255, 0.16);
    flex-direction: row;
  }

  .site-nav__actions .btn {
    flex: 1 1 0;
  }

  #main-content {
    scroll-margin-top: calc(var(--header-height-mobile) + 16px);
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 24px;
  }

  .site-footer__brand {
    grid-column: span 2;
  }
}

@media (max-width: 560px) {
  .site-header__inner {
    gap: 10px;
    padding: 0 16px;
  }

  .brand__title {
    font-size: 0.95rem;
  }

  .brand__sub {
    font-size: 0.6rem;
  }

  .brand__mark {
    width: 36px;
    height: 36px;
    font-size: 0.78rem;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    padding: 32px 16px;
  }

  .site-footer__brand {
    grid-column: span 1;
  }

  .site-footer__bottom {
    padding: 16px;
  }

  .site-footer__bottom > span:last-child {
    margin-left: 0;
  }

  .page-container {
    width: min(100% - 24px, var(--container));
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}