:root {
  --bg-main: #050A12;
  --bg-deep: #070B18;
  --bg-card: rgba(12, 20, 39, 0.72);
  --bg-card-strong: rgba(15, 29, 56, 0.88);
  --text-main: #ffffff;
  --text-muted: #AAB6C8;
  --text-soft: #D6E0F0;
  --cyan: #00D4FF;
  --cyan-soft: rgba(0, 212, 255, 0.16);
  --violet: #7A5CFF;
  --violet-soft: rgba(122, 92, 255, 0.18);
  --green: #00FFC2;
  --green-soft: rgba(0, 255, 194, 0.16);
  --border: rgba(132, 217, 255, 0.18);
  --border-strong: rgba(0, 212, 255, 0.45);
  --dangerless: #172238;
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: 1180px;
  --shadow-cyan: 0 0 40px rgba(0, 212, 255, 0.18);
  --shadow-violet: 0 0 60px rgba(122, 92, 255, 0.18);
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: var(--font);
  background:
    radial-gradient(circle at 12% 8%, rgba(0, 212, 255, 0.12), transparent 30%),
    radial-gradient(circle at 82% 12%, rgba(122, 92, 255, 0.16), transparent 32%),
    radial-gradient(circle at 65% 68%, rgba(0, 255, 194, 0.08), transparent 30%),
    linear-gradient(180deg, #050A12 0%, #070B18 45%, #050A12 100%);
  color: var(--text-main);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.85), rgba(0,0,0,0.2));
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(120deg, transparent 0%, rgba(0, 212, 255, 0.035) 48%, transparent 60%);
  z-index: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

.main-wrapper {
  position: relative;
  z-index: 1;
}

.container {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(22px);
  background: rgba(5, 10, 18, 0.76);
  border-bottom: 1px solid rgba(132, 217, 255, 0.12);
}

.header-inner {
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background:
    linear-gradient(135deg, rgba(0,212,255,0.9), rgba(122,92,255,0.9)),
    radial-gradient(circle, #fff 0%, transparent 55%);
  box-shadow: 0 0 34px rgba(0, 212, 255, 0.32);
  position: relative;
  overflow: hidden;
}

.logo-mark::after {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px solid rgba(255,255,255,0.7);
  border-radius: 8px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-title {
  font-size: 14px;
  font-weight: 750;
  letter-spacing: 0.04em;
}

.logo-subtitle {
  margin-top: 4px;
  color: var(--text-muted);
  font-size: 11px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--text-muted);
  font-size: 14px;
}

.nav a {
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: color 0.2s ease;
}

.nav a:hover,
.nav a.active {
  color: var(--cyan);
}

.nav a.active {
  border: 1px solid rgba(0, 212, 255, 0.22);
  background: rgba(0, 212, 255, 0.08);
  color: var(--text-main);
}

.header-cta {
  min-width: max-content;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
  white-space: nowrap;
}

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

.btn-primary {
  color: #021019;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 0 34px rgba(0, 212, 255, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 0 48px rgba(0, 255, 194, 0.42);
}

.btn-secondary {
  color: var(--text-main);
  background: rgba(255,255,255,0.06);
  border-color: rgba(0, 212, 255, 0.32);
  box-shadow: inset 0 0 22px rgba(0, 212, 255, 0.06);
}

.btn-secondary:hover {
  background: rgba(0, 212, 255, 0.11);
  border-color: rgba(0, 212, 255, 0.58);
}

.btn-ghost {
  color: var(--text-main);
  background: rgba(122, 92, 255, 0.12);
  border-color: rgba(122, 92, 255, 0.36);
}

.btn-ghost:hover {
  background: rgba(122, 92, 255, 0.2);
  border-color: rgba(122, 92, 255, 0.68);
}

.footer {
  border-top: 1px solid rgba(132, 217, 255, 0.12);
  padding: 46px 0;
  color: var(--text-muted);
  background: rgba(0,0,0,0.16);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 38px;
  align-items: start;
}

.footer p {
  max-width: 520px;
  line-height: 1.65;
  margin-top: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  justify-content: flex-end;
  margin-bottom: 16px;
}

.footer-links a:hover {
  color: var(--cyan);
}

.footer-contact {
  text-align: right;
  line-height: 1.7;
}

.copyright {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid rgba(132, 217, 255, 0.1);
  font-size: 13px;
}

.mobile-menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  flex: 0 0 48px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  border: 1px solid rgba(0, 212, 255, 0.32);
  border-radius: 16px;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.055);
  box-shadow: inset 0 0 22px rgba(0, 212, 255, 0.06);
  cursor: pointer;
  transition: border-color 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
}

.mobile-menu-toggle:hover {
  border-color: rgba(0, 212, 255, 0.58);
  background: rgba(0, 212, 255, 0.11);
  box-shadow: 0 0 28px rgba(0, 212, 255, 0.14);
}

.mobile-menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: var(--text-main);
  transition: transform 0.22s ease, opacity 0.22s ease, width 0.22s ease;
}

.mobile-menu-toggle.is-open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
  width: 6px;
}

.mobile-menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.mobile-menu {
  display: none;
}

.mobile-menu-inner {
  padding: 18px 0 26px;
}

.mobile-menu-panel {
  overflow: hidden;
  border: 1px solid rgba(132, 217, 255, 0.18);
  border-radius: 24px;
  background:
    radial-gradient(circle at 12% 5%, rgba(0, 212, 255, 0.16), transparent 34%),
    radial-gradient(circle at 88% 22%, rgba(122, 92, 255, 0.18), transparent 36%),
    rgba(8, 15, 29, 0.94);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.38), var(--shadow-cyan);
  backdrop-filter: blur(22px);
}

.mobile-menu-top {
  padding: 22px;
  border-bottom: 1px solid rgba(132, 217, 255, 0.12);
}

.mobile-menu-title {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.mobile-menu-subtitle {
  margin-top: 8px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.55;
}

.mobile-nav {
  display: grid;
  padding: 10px;
}

.mobile-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 14px;
  border-radius: 16px;
  color: var(--text-main);
  font-size: 17px;
  font-weight: 750;
  letter-spacing: -0.02em;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--cyan);
  background: rgba(255, 255, 255, 0.06);
}

.mobile-nav a:hover {
  transform: translateX(3px);
}

.mobile-nav a span {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.mobile-menu-actions {
  display: grid;
  gap: 12px;
  padding: 0 20px 22px;
}

@media (max-width: 1080px) {
  .nav,
  .header-cta {
    display: none;
  }

  .mobile-menu-toggle {
    display: inline-flex;
  }

  body.menu-open {
    overflow: hidden;
  }

  .mobile-menu {
    position: fixed;
    left: 0;
    right: 0;
    top: 78px;
    z-index: 18;
    display: block;
    height: calc(100dvh - 78px);
    overflow-y: auto;
    background: rgba(5, 10, 18, 0.56);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.22s ease, visibility 0.22s ease, transform 0.22s ease;
  }

  .mobile-menu.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .header-inner {
    height: 68px;
  }

  .mobile-menu {
    top: 68px;
    height: calc(100dvh - 68px);
  }

  .logo-subtitle,
  .header-cta {
    display: none;
  }

  .logo-title {
    font-size: 13px;
  }

  .btn {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-links,
  .footer-contact {
    justify-content: flex-start;
    text-align: left;
  }
}

@media (max-width: 360px) {
  .container {
    width: min(100% - 20px, var(--container));
  }

  .header-inner {
    height: 64px;
    gap: 8px;
  }

  .logo {
    min-width: 0;
    flex: 1 1 auto;
    gap: 9px;
    overflow: hidden;
  }

  .logo-mark {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    border-radius: 11px;
  }

  .logo-mark::after {
    inset: 8px;
    border-radius: 7px;
  }

  .logo-text {
    min-width: 0;
    overflow: hidden;
  }

  .logo-title {
    display: block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 12px;
    letter-spacing: 0.02em;
  }

  .mobile-menu-toggle {
    width: 42px;
    height: 42px;
    flex: 0 0 42px;
    border-radius: 14px;
    gap: 5px;
  }

  .mobile-menu-toggle span {
    width: 18px;
  }

  .mobile-menu-toggle.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .mobile-menu-toggle.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .mobile-menu {
    top: 64px;
    height: calc(100dvh - 64px);
  }

  .mobile-menu-inner {
    padding: 10px 0 16px;
  }

  .mobile-menu-panel {
    border-radius: 18px;
  }

  .mobile-menu-top {
    padding: 16px;
  }

  .mobile-menu-subtitle {
    font-size: 13px;
    line-height: 1.45;
  }

  .mobile-nav {
    padding: 8px;
  }

  .mobile-nav a {
    gap: 10px;
    padding: 13px 12px;
    border-radius: 13px;
    font-size: 15px;
  }

  .mobile-nav a span {
    font-size: 10px;
  }

  .mobile-menu-actions {
    gap: 10px;
    padding: 0 14px 16px;
  }
}