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

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

body {
  font-family: 'Nunito', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--light-grey);
  background-color: #0A0A0A;
  background-image:
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.012) 0,
      rgba(255, 255, 255, 0.012) 1px,
      transparent 1px,
      transparent 4px
    );
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

:root {
  --neon-purple: #B8298F;
  --electric-blue: #1E90FF;
  --acid-green: #A8FF00;
  --bright-orange: #FF6A00;
  --deep-black: #0A0A0A;
  --dark-grey: #1A1A1A;
  --mid-grey: #888888;
  --light-grey: #E0E0E0;
  --pure-white: #FFFFFF;

  --font-heading: 'Orbitron', 'Share Tech Mono', 'PingFang SC', 'Microsoft YaHei', monospace;
  --font-body: 'Nunito', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-mono: 'Share Tech Mono', 'Courier New', monospace;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 48px;
  --space-2xl: 96px;

  --container-width: 1280px;
  --header-height: 72px;
  --radius: 2px;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  --z-header: 1000;
  --z-nav: 900;
  --z-skip: 2000;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--pure-white);
  letter-spacing: 0.04em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1rem; }

p { margin-bottom: 1em; }

a {
  color: var(--electric-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover { color: var(--pure-white); }

ul, ol { list-style-position: inside; }

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

main {
  display: block;
  min-height: 70vh;
}

#main-content {
  outline: none;
}

/* ===== Focus Visible ===== */
:focus-visible {
  outline: 2px solid var(--acid-green);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

@media (max-width: 768px) {
  .container { padding-inline: var(--space-md); }
}

/* ===== Main Padded Utility ===== */
.main--padded {
  padding-top: calc(var(--header-height) + var(--space-xl));
}

/* ===== Accessibility ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: var(--space-md);
  z-index: var(--z-skip);
  background: var(--acid-green);
  color: var(--deep-black);
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 2px;
  box-shadow: 0 0 20px rgba(168, 255, 0, 0.3);
  transition: top var(--transition-fast);
}

.skip-link:hover { color: var(--deep-black); background: var(--pure-white); }

.skip-link:focus {
  top: var(--space-md);
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-header);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.site-header.is-scrolled,
.site-header.is-nav-open {
  background: rgba(10, 10, 10, 0.88);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: rgba(184, 41, 143, 0.35);
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.3);
}

.site-header.is-nav-open {
  background: rgba(10, 10, 10, 0.97);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  position: relative;
  gap: var(--space-lg);
}

/* Brand */
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--pure-white);
  font-family: var(--font-heading);
  text-decoration: none;
  flex-shrink: 0;
  line-height: 1;
}

.site-brand:hover {
  color: var(--pure-white);
}

.site-brand__mark {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.site-brand__px {
  display: block;
  background: var(--neon-purple);
  border-radius: 1px;
  box-shadow: 0 0 8px rgba(184, 41, 143, 0.5);
}

.site-brand__px:nth-child(2),
.site-brand__px:nth-child(3) {
  background: var(--electric-blue);
  box-shadow: 0 0 8px rgba(30, 144, 255, 0.5);
}

.site-brand__px:nth-child(4) {
  background: var(--acid-green);
  box-shadow: 0 0 8px rgba(168, 255, 0, 0.5);
}

.site-brand__meta {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  gap: 2px;
}

.site-brand__name {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-shadow: 0 0 16px rgba(184, 41, 143, 0.55);
  white-space: nowrap;
}

.site-brand__version {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--acid-green);
  white-space: nowrap;
}

/* Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  list-style: none;
}

.site-nav__link {
  position: relative;
  display: block;
  padding: 8px 12px;
  color: var(--light-grey);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  font-family: var(--font-body);
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
}

.site-nav__link::after {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-purple), var(--electric-blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

@media (hover: hover) {
  .site-nav__link:hover {
    color: var(--pure-white);
    text-shadow: 0 0 12px rgba(184, 41, 143, 0.4);
  }
  .site-nav__link:hover::after {
    transform: scaleX(1);
  }
}

.site-nav__link:focus-visible {
  color: var(--pure-white);
}

.site-nav__link[aria-current="page"] {
  color: var(--pure-white);
  text-shadow: 0 0 16px rgba(184, 41, 143, 0.6);
}

.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  box-shadow: 0 0 10px rgba(184, 41, 143, 0.6);
}

.site-nav__cta {
  flex-shrink: 0;
}

/* Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid rgba(136, 136, 136, 0.4);
  border-radius: 4px;
  cursor: pointer;
  gap: 5px;
  padding: 0;
  z-index: calc(var(--z-header) + 1);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.nav-toggle:hover {
  border-color: var(--neon-purple);
  background: rgba(184, 41, 143, 0.08);
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--pure-white);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity var(--transition-fast), background var(--transition-fast);
}

.nav-toggle.is-active .nav-toggle__bar {
  background: var(--acid-green);
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 28px;
  border-radius: var(--radius);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  line-height: 1.2;
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--acid-green), #C8FF3C);
  color: var(--deep-black);
  border-color: var(--acid-green);
  box-shadow: 0 0 20px rgba(168, 255, 0, 0.25);
}

@media (hover: hover) {
  .btn--primary:hover {
    background: var(--acid-green);
    color: var(--deep-black);
    box-shadow: 0 0 32px rgba(168, 255, 0, 0.4);
    transform: translateY(-2px);
  }
}

.btn--ghost {
  background: transparent;
  color: var(--neon-purple);
  border-color: var(--neon-purple);
}

@media (hover: hover) {
  .btn--ghost:hover {
    background: rgba(184, 41, 143, 0.1);
    color: var(--pure-white);
    border-color: var(--pure-white);
    box-shadow: 0 0 20px rgba(184, 41, 143, 0.25);
  }
}

.btn--accent {
  background: transparent;
  color: var(--acid-green);
  border-color: var(--acid-green);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn--accent::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--acid-green);
  opacity: 0;
  z-index: -1;
  transition: opacity var(--transition-fast);
}

@media (hover: hover) {
  .btn--accent:hover {
    color: var(--deep-black);
  }
  .btn--accent:hover::before {
    opacity: 1;
    box-shadow: 0 0 24px rgba(168, 255, 0, 0.4);
  }
}

/* ===== Footer ===== */
.site-footer {
  position: relative;
  background: var(--deep-black);
  border-top: 1px solid rgba(184, 41, 143, 0.25);
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--neon-purple), var(--electric-blue) 40%, var(--acid-green) 80%, var(--bright-orange));
}

.site-footer::after {
  content: '';
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(184, 41, 143, 0.12), transparent 70%);
  pointer-events: none;
}

.site-footer__inner {
  position: relative;
}

.site-footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: var(--space-xl);
  padding: var(--space-2xl) 0 var(--space-xl);
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.site-brand--footer {
  margin-bottom: var(--space-lg);
}

.site-brand--footer .site-brand__name {
  font-size: 1.4rem;
}

.site-brand--footer .site-brand__mark {
  width: 32px;
  height: 32px;
}

.site-footer__tagline {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--mid-grey);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
}

.site-footer__trust {
  font-size: 0.82rem;
  color: var(--mid-grey);
  line-height: 1.6;
  max-width: 280px;
  margin-bottom: var(--space-md);
}

.site-footer__social {
  display: flex;
  gap: var(--space-sm);
  list-style: none;
  margin-top: var(--space-md);
  padding: 0;
}

.site-footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--dark-grey);
  border: 1px solid rgba(136, 136, 136, 0.25);
  border-radius: 4px;
  color: var(--mid-grey);
  transition: border-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

@media (hover: hover) {
  .site-footer__social-link:hover {
    border-color: var(--neon-purple);
    color: var(--neon-purple);
    box-shadow: 0 0 14px rgba(184, 41, 143, 0.25);
    transform: translateY(-3px);
  }
}

.site-footer__social-shape {
  display: block;
}

.site-footer__social-shape--tri {
  width: 0;
  height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-bottom: 11px solid currentColor;
}

.site-footer__social-shape--cir {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: currentColor;
}

.site-footer__social-shape--sqr {
  width: 10px;
  height: 10px;
  background: currentColor;
  border-radius: 1px;
  transform: rotate(8deg);
}

.site-footer__heading {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pure-white);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  position: relative;
}

.site-footer__heading::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 2px;
  background: var(--neon-purple);
  box-shadow: 0 0 8px rgba(184, 41, 143, 0.5);
}

.site-footer__list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.site-footer__list--meta {
  gap: 0;
}

.site-footer__link {
  display: inline-block;
  color: var(--light-grey);
  font-size: 0.9rem;
  padding: 2px 0;
  position: relative;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.site-footer__link::before {
  content: '';
  position: absolute;
  left: -14px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--electric-blue);
  opacity: 0;
  transition: left var(--transition-fast), opacity var(--transition-fast);
}

@media (hover: hover) {
  .site-footer__link:hover {
    color: var(--pure-white);
    padding-left: 6px;
  }
  .site-footer__link:hover::before {
    opacity: 1;
    left: -6px;
  }
}

.site-footer__meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-sm) 0;
  border-bottom: 1px dashed rgba(136, 136, 136, 0.15);
}

.site-footer__meta-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--neon-purple);
}

.site-footer__meta-value {
  font-size: 0.85rem;
  color: var(--light-grey);
  word-break: break-all;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm) var(--space-lg);
  padding: var(--space-lg) 0;
  border-top: 1px solid rgba(136, 136, 136, 0.15);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mid-grey);
  letter-spacing: 0.04em;
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm);
}

.site-footer__sep {
  color: var(--neon-purple);
}

.site-footer__official {
  margin: 0;
  color: var(--mid-grey);
}

/* ===== Breadcrumbs ===== */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg) 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--mid-grey);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

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

@media (hover: hover) {
  .breadcrumbs a:hover {
    color: var(--pure-white);
    text-decoration: underline;
  }
}

.breadcrumbs__sep {
  color: var(--neon-purple);
  opacity: 0.6;
}

.breadcrumbs [aria-current="page"] {
  color: var(--pure-white);
}

/* ===== Section Label ===== */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--neon-purple);
  margin-bottom: var(--space-md);
}

.section-label::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--neon-purple);
  box-shadow: 0 0 8px rgba(184, 41, 143, 0.5);
}

.section-label--light {
  color: var(--acid-green);
}

.section-label--light::before {
  background: var(--acid-green);
  box-shadow: 0 0 8px rgba(168, 255, 0, 0.4);
}

/* ===== Prose ===== */
.prose {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--light-grey);
  max-width: 680px;
}

.prose p {
  margin-bottom: 1.5em;
}

.prose h2 {
  font-size: 1.6rem;
  margin-top: 2em;
  margin-bottom: 0.8em;
  padding-top: var(--space-md);
  position: relative;
}

.prose h2::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--neon-purple), var(--electric-blue));
}

.prose h3 {
  font-size: 1.2rem;
  margin-top: 1.5em;
  margin-bottom: 0.6em;
  color: var(--pure-white);
}

.prose a {
  color: var(--electric-blue);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(30, 144, 255, 0.5);
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}

@media (hover: hover) {
  .prose a:hover {
    color: var(--acid-green);
    text-decoration-color: var(--acid-green);
  }
}

.prose blockquote {
  border-left: 3px solid var(--acid-green);
  background: rgba(168, 255, 0, 0.04);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-xl) 0;
  color: var(--mid-grey);
  font-style: italic;
}

.prose ul,
.prose ol {
  margin-bottom: 1.5em;
  padding-left: 1.4em;
}

.prose li {
  margin-bottom: 0.6em;
}

/* ===== Card ===== */
.card {
  position: relative;
  background-color: var(--dark-grey);
  background-image: linear-gradient(135deg, rgba(184, 41, 143, 0.08), transparent 45%);
  border: 1px solid rgba(184, 41, 143, 0.2);
  padding: var(--space-xl);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.card::before {
  content: '';
  position: absolute;
  top: -1px;
  right: -1px;
  width: 20px;
  height: 20px;
  border-top: 3px solid var(--neon-purple);
  border-right: 3px solid var(--neon-purple);
  pointer-events: none;
}

.card::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: -1px;
  width: 20px;
  height: 20px;
  border-bottom: 3px solid var(--electric-blue);
  border-left: 3px solid var(--electric-blue);
  pointer-events: none;
}

@media (hover: hover) {
  .card:hover {
    transform: translateY(-6px) rotate(-0.6deg);
    border-color: var(--neon-purple);
    box-shadow: 0 12px 40px rgba(184, 41, 143, 0.18), 0 0 24px rgba(184, 41, 143, 0.08);
  }
}

.card__title {
  font-size: 1.2rem;
  margin-bottom: var(--space-md);
  color: var(--pure-white);
  letter-spacing: 0.04em;
  position: relative;
  z-index: 1;
}

.card__body {
  font-size: 0.92rem;
  color: var(--mid-grey);
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

.card__footer {
  margin-top: var(--space-lg);
  position: relative;
  z-index: 1;
}

/* ===== Grid ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-lg);
}

.grid > * {
  grid-column: span 6;
  margin: 0;
}

.grid[data-columns="3"] > * {
  grid-column: span 4;
}

.grid[data-columns="4"] > * {
  grid-column: span 3;
}

.grid[data-columns="2"] > * {
  grid-column: span 6;
}

@media (max-width: 880px) {
  .grid[data-columns="3"] > *,
  .grid[data-columns="4"] > * {
    grid-column: span 6;
  }
}

@media (max-width: 640px) {
  .grid > *,
  .grid[data-columns="2"] > *,
  .grid[data-columns="3"] > *,
  .grid[data-columns="4"] > * {
    grid-column: 1 / -1;
  }
}

/* ===== Media Frame ===== */
.media-frame {
  position: relative;
  background: var(--dark-grey);
  border: 1px solid rgba(30, 144, 255, 0.25);
  overflow: hidden;
}

.media-frame::before {
  content: '';
  display: block;
  padding-bottom: 56.25%;
}

.media-frame--square::before {
  padding-bottom: 100%;
}

.media-frame--portrait::before {
  padding-bottom: 125%;
}

.media-frame--tall::before {
  padding-bottom: 140%;
}

.media-frame::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 24px;
  height: 24px;
  border-top: 3px solid var(--neon-purple);
  border-left: 3px solid var(--neon-purple);
  z-index: 2;
  pointer-events: none;
}

.media-frame__inner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.media-frame__inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

@media (hover: hover) {
  .media-frame:hover .media-frame__inner img {
    transform: scale(1.03);
  }
}

.media-frame__label {
  position: absolute;
  right: var(--space-sm);
  bottom: var(--space-sm);
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--acid-green);
  background: rgba(10, 10, 10, 0.75);
  padding: 4px 10px;
  border: 1px solid rgba(168, 255, 0, 0.25);
  border-radius: 2px;
}

/* ===== Reveal Animation ===== */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ===== Responsive ===== */
@media (max-width: 880px) {
  :root {
    --header-height: 62px;
  }

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

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 82vw);
    background: rgba(10, 10, 10, 0.97);
    border-left: 1px solid var(--neon-purple);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: calc(var(--header-height) + var(--space-lg)) var(--space-lg) var(--space-xl);
    gap: var(--space-xl);
    z-index: calc(var(--z-header) - 1);
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
    box-shadow: -16px 0 48px rgba(0, 0, 0, 0.5);
  }

  .site-nav[data-open] {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }

  .site-nav::before {
    content: '';
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--neon-purple), var(--electric-blue), var(--acid-green));
    z-index: 2;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: var(--space-xs);
  }

  .site-nav__link {
    padding: 14px 12px;
    font-size: 1rem;
    border-bottom: 1px solid rgba(136, 136, 136, 0.12);
    width: 100%;
    text-align: left;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .site-nav__link::after {
    display: none;
  }

  .site-nav__link[aria-current="page"] {
    color: var(--acid-green);
    background: rgba(168, 255, 0, 0.05);
    border-left: 3px solid var(--acid-green);
    padding-left: 9px;
    text-shadow: none;
  }

  .site-nav__cta {
    width: 100%;
  }

  /* Footer Responsive */
  .site-footer__top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl) var(--space-lg);
    padding: var(--space-xl) 0;
  }

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

@media (max-width: 640px) {
  .site-footer__top {
    grid-template-columns: 1fr;
  }

  .site-footer__brand {
    grid-column: auto;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .site-nav {
    transition: none;
  }
}