:root {
  --zb-primary: #7B2FF7;
  --zb-secondary: #00E5FF;
  --zb-accent: #39FF14;
  --zb-bg-dark: #0B0B1A;
  --zb-bg-card: #1A1A2E;
  --zb-text-primary: #FFFFFF;
  --zb-text-secondary: #B0B0C8;
  --zb-border-glow: 0 0 10px rgba(123, 47, 247, 0.5);
  --zb-grad-main: linear-gradient(135deg, #7B2FF7, #00E5FF);
  --zb-grad-accent: linear-gradient(135deg, #39FF14, #00E5FF);
  --zb-font-heading: 'Space Grotesk', 'Arial Black', 'Impact', sans-serif;
  --zb-font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --zb-radius: 4px;
  --zb-border-width: 3px;
  --zb-shadow-card: 0 8px 32px rgba(0, 0, 0, 0.6);
  --zb-header-h: 64px;
  --zb-max-width: 1280px;
  --zb-transition: 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--zb-font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.7;
  color: var(--zb-text-primary);
  background-color: var(--zb-bg-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--zb-secondary);
  text-decoration: none;
  transition: color var(--zb-transition);
}

a:hover {
  color: var(--zb-primary);
}

a:focus-visible {
  outline: 2px solid var(--zb-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

button:focus-visible {
  outline: 2px solid var(--zb-accent);
  outline-offset: 2px;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--zb-font-heading);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--zb-text-primary);
}

::selection {
  background: var(--zb-primary);
  color: var(--zb-text-primary);
}

:focus-visible {
  outline: 2px solid var(--zb-accent);
  outline-offset: 2px;
}

@media prefers-reduced-motion: reduce {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

.zb-container {
  width: 100%;
  max-width: var(--zb-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

@media (min-width: 768px) {
  .zb-container {
    padding-left: 32px;
    padding-right: 32px;
  }
}

@media (min-width: 1024px) {
  .zb-container {
    padding-left: 48px;
    padding-right: 48px;
  }
}

.zb-skip-link {
  position: absolute;
  top: -1000px;
  left: 16px;
  z-index: 9999;
  padding: 12px 24px;
  background: var(--zb-primary);
  color: var(--zb-text-primary);
  font-family: var(--zb-font-body);
  font-weight: 600;
  font-size: 14px;
  border-radius: var(--zb-radius);
  text-decoration: none;
  transition: top 0.2s;
}

.zb-skip-link:focus {
  top: 12px;
  outline: 2px solid var(--zb-accent);
  outline-offset: 2px;
}

.zb-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 11, 26, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: var(--zb-border-width) solid transparent;
  border-image: var(--zb-grad-main) 1;
  height: var(--zb-header-h);
}

.zb-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.zb-header__brand {
  flex-shrink: 0;
  z-index: 1002;
}

.zb-logo {
  font-family: var(--zb-font-heading);
  font-weight: 900;
  font-size: 24px;
  letter-spacing: -0.03em;
  background: var(--zb-grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 20px rgba(123, 47, 247, 0.4);
  transition: text-shadow var(--zb-transition);
  white-space: nowrap;
}

.zb-logo:hover {
  text-shadow: 0 0 30px rgba(123, 47, 247, 0.7), 0 0 60px rgba(0, 229, 255, 0.3);
}

.zb-logo--footer {
  font-size: 20px;
  text-shadow: 0 0 12px rgba(123, 47, 247, 0.3);
}

.zb-header__nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.zb-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.zb-nav__item {
  position: relative;
}

.zb-nav__link {
  display: block;
  padding: 8px 16px;
  font-family: var(--zb-font-body);
  font-weight: 500;
  font-size: 14px;
  color: var(--zb-text-secondary);
  letter-spacing: 0.02em;
  border-radius: var(--zb-radius);
  transition: color var(--zb-transition), background var(--zb-transition);
  white-space: nowrap;
}

.zb-nav__link:hover {
  color: var(--zb-text-primary);
  background: rgba(123, 47, 247, 0.12);
}

.zb-nav__link[aria-current="page"] {
  color: var(--zb-text-primary);
  background: rgba(123, 47, 247, 0.2);
  box-shadow: inset 0 -2px 0 var(--zb-primary);
}

.zb-nav__link:focus-visible {
  outline: 2px solid var(--zb-accent);
  outline-offset: 2px;
}

.zb-header__cta {
  margin-left: 8px;
}

.zb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  font-family: var(--zb-font-heading);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--zb-radius);
  border: var(--zb-border-width) solid transparent;
  transition: all var(--zb-transition);
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
}

.zb-btn--accent {
  background: var(--zb-accent);
  color: #0B0B1A;
  border-color: var(--zb-accent);
  box-shadow: 0 0 20px rgba(57, 255, 20, 0.25);
}

.zb-btn--accent:hover {
  background: transparent;
  color: var(--zb-accent);
  box-shadow: 0 0 30px rgba(57, 255, 20, 0.4);
}

.zb-btn--ghost {
  background: transparent;
  color: var(--zb-text-primary);
  border-image: var(--zb-grad-main) 1;
}

.zb-btn--ghost:hover {
  background: rgba(123, 47, 247, 0.15);
  box-shadow: 0 0 20px rgba(123, 47, 247, 0.3);
}

.zb-btn:focus-visible {
  outline: 2px solid var(--zb-accent);
  outline-offset: 2px;
}

.zb-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  padding: 6px;
  z-index: 1002;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: var(--zb-radius);
}

.zb-nav-toggle:focus-visible {
  outline: 2px solid var(--zb-accent);
  outline-offset: 2px;
}

.zb-nav-toggle__line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--zb-text-primary);
  border-radius: 2px;
  transition: all var(--zb-transition);
}

.zb-nav-toggle__line + .zb-nav-toggle__line {
  margin-top: 5px;
}

.zb-header__stripe {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--zb-grad-main);
  clip-path: polygon(0 0, 100% 0, 98% 100%, 0 100%);
}

@media (max-width: 767px) {
  :root {
    --zb-header-h: 56px;
  }

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

  .zb-header__nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1001;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    background: rgba(11, 11, 26, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
    padding: 80px 24px 40px;
  }

  .zb-header__nav[data-open] {
    opacity: 1;
    visibility: visible;
  }

  .zb-nav {
    flex-direction: column;
    gap: 8px;
    width: 100%;
    max-width: 300px;
  }

  .zb-nav__link {
    text-align: center;
    font-size: 18px;
    padding: 14px 20px;
    width: 100%;
  }

  .zb-header__cta {
    width: 100%;
    max-width: 300px;
    margin-left: 0;
    padding: 14px 24px;
    font-size: 16px;
  }

  .zb-nav-toggle[aria-expanded="true"] .zb-nav-toggle__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

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

  .zb-nav-toggle[aria-expanded="true"] .zb-nav-toggle__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .zb-nav__link {
    padding: 8px 10px;
    font-size: 13px;
  }

  .zb-header__cta {
    padding: 8px 16px;
    font-size: 12px;
  }

  .zb-header__nav {
    gap: 12px;
  }
}

@media (min-width: 1024px) {
  .zb-nav__link {
    padding: 8px 18px;
    font-size: 15px;
  }
}

.zb-footer {
  background: #060612;
  border-top: var(--zb-border-width) solid transparent;
  border-image: var(--zb-grad-main) 1;
  position: relative;
  padding-top: 48px;
  padding-bottom: 32px;
}

.zb-footer__stripe {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--zb-grad-main);
  clip-path: polygon(2% 0, 100% 0, 100% 100%, 0% 100%);
}

.zb-footer__inner {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.zb-footer__top {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

@media (min-width: 768px) {
  .zb-footer__top {
    flex-direction: row;
    justify-content: space-between;
  }
}

.zb-footer__brand {
  flex-shrink: 0;
  max-width: 260px;
}

.zb-footer__tagline {
  margin-top: 8px;
  font-size: 14px;
  color: var(--zb-text-secondary);
  line-height: 1.5;
}

.zb-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 32px 48px;
  flex: 1;
  justify-content: flex-end;
}

.zb-footer__col {
  min-width: 140px;
}

.zb-footer__heading {
  font-family: var(--zb-font-heading);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--zb-primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(123, 47, 247, 0.25);
}

.zb-footer__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.zb-footer__list a {
  font-size: 14px;
  color: var(--zb-text-secondary);
  transition: color var(--zb-transition);
}

.zb-footer__list a:hover {
  color: var(--zb-secondary);
}

.zb-footer__list a:focus-visible {
  outline: 2px solid var(--zb-accent);
  outline-offset: 2px;
}

.zb-footer__contact li {
  font-size: 14px;
  color: var(--zb-text-secondary);
  line-height: 1.5;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
}

.zb-footer__contact a {
  color: var(--zb-text-secondary);
  word-break: break-all;
}

.zb-footer__contact a:hover {
  color: var(--zb-secondary);
}

.zb-footer__label {
  font-weight: 500;
  color: var(--zb-text-primary);
  min-width: 36px;
}

.zb-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(176, 176, 200, 0.12);
  font-size: 13px;
  color: var(--zb-text-secondary);
}

.zb-footer__icp {
  font-size: 12px;
  letter-spacing: 0.02em;
}

.zb-footer__trust {
  font-size: 12px;
  max-width: 480px;
  text-align: center;
  color: rgba(176, 176, 200, 0.6);
  line-height: 1.5;
}

.zb-footer__copy {
  font-size: 12px;
  white-space: nowrap;
}

@media (max-width: 767px) {
  .zb-footer {
    padding-top: 32px;
    padding-bottom: 24px;
  }

  .zb-footer__inner {
    gap: 28px;
  }

  .zb-footer__brand {
    text-align: center;
    max-width: 100%;
  }

  .zb-footer__nav {
    flex-direction: column;
    gap: 24px;
    justify-content: flex-start;
  }

  .zb-footer__col {
    min-width: 100%;
  }

  .zb-footer__bottom {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }

  .zb-footer__trust {
    max-width: 100%;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .zb-footer__nav {
    gap: 24px 32px;
  }

  .zb-footer__col {
    min-width: 120px;
  }
}

.zb-progress {
  position: fixed;
  top: var(--zb-header-h);
  left: 0;
  right: 0;
  height: 3px;
  z-index: 999;
  background: rgba(11, 11, 26, 0.4);
  pointer-events: none;
}

.zb-progress__bar {
  height: 100%;
  width: 0%;
  background: var(--zb-grad-main);
  transition: width 0.1s linear;
  will-change: width;
}

@media prefers-reduced-motion: reduce {
  .zb-progress__bar {
    transition: none;
  }
}

.zb-section {
  position: relative;
  padding: 64px 0;
}

.zb-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--zb-grad-main);
  clip-path: polygon(0 0, 100% 0, 95% 100%, 0% 100%);
  opacity: 0.3;
}

.zb-section:first-child::before {
  display: none;
}

@media (min-width: 768px) {
  .zb-section {
    padding: 80px 0;
  }
}

.zb-card {
  background: var(--zb-bg-card);
  border: var(--zb-border-width) solid transparent;
  border-image: var(--zb-grad-main) 1;
  border-radius: var(--zb-radius);
  padding: 24px;
  box-shadow: var(--zb-shadow-card);
  transition: transform var(--zb-transition), box-shadow var(--zb-transition);
}

.zb-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.7), 0 0 20px rgba(123, 47, 247, 0.15);
}

@media prefers-reduced-motion: reduce {
  .zb-card:hover {
    transform: none;
  }
}

.zb-card__title {
  font-family: var(--zb-font-heading);
  font-weight: 800;
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--zb-text-primary);
}

.zb-card__body {
  font-size: 15px;
  color: var(--zb-text-secondary);
  line-height: 1.7;
}

.zb-title {
  font-family: var(--zb-font-heading);
  font-weight: 900;
  font-size: 36px;
  letter-spacing: -0.03em;
  text-shadow: 0 0 10px rgba(123, 47, 247, 0.3), 0 0 20px rgba(0, 229, 255, 0.15);
  margin-bottom: 16px;
}

.zb-title--sm {
  font-size: 24px;
}

.zb-title--lg {
  font-size: 48px;
}

@media (max-width: 767px) {
  .zb-title {
    font-size: 28px;
  }

  .zb-title--lg {
    font-size: 32px;
  }

  .zb-title--sm {
    font-size: 20px;
  }
}

.zb-text {
  font-size: 16px;
  color: var(--zb-text-secondary);
  line-height: 1.8;
  max-width: 720px;
}

.zb-text--narrow {
  max-width: 560px;
}

.zb-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .zb-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .zb-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.zb-flex {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.zb-flex--center {
  align-items: center;
  justify-content: center;
}

.zb-stripe {
  height: 4px;
  background: var(--zb-grad-main);
  clip-path: polygon(0 0, 100% 0, 98% 100%, 2% 100%);
  margin: 32px 0;
  opacity: 0.5;
}

.zb-glow-text {
  text-shadow: 0 0 10px rgba(123, 47, 247, 0.5), 0 0 20px rgba(0, 229, 255, 0.2);
}

@media print {
  .zb-header,
  .zb-footer,
  .zb-progress,
  .zb-nav-toggle {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .zb-container {
    max-width: 100%;
    padding: 0;
  }
}