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

:root {
  --black: #000000;
  --white: #ffffff;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--black);
  color: var(--white);
  font-family: 'Share Tech Mono', monospace;
  min-height: 100vh;
  overflow-x: hidden;
}

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

nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 24px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  background: var(--black);
}

.nav-logo {
  font-family: 'VT323', monospace;
  font-size: 30px;
  letter-spacing: 8px;
}

.nav-links {
  display: flex;
  gap: 48px;
  list-style: none;
}

.nav-links a {
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  position: relative;
  transition: color 0.2s;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--white);
  transition: width 0.25s ease;
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
  z-index: 200;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--white);
  transition: all 0.3s ease;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--black);
  z-index: 99;
  flex-direction: column;
  justify-content: center;
  padding: 48px;
  transform: translateX(-100%);
  transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
}

.mobile-menu.visible {
  display: flex;
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu a {
  font-family: 'VT323', monospace;
  font-size: 56px;
  letter-spacing: 4px;
  color: rgba(255, 255, 255, 0.18);
  line-height: 1.4;
  transition: color 0.2s;
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--white);
}

.mobile-footer {
  position: absolute;
  bottom: 48px;
  left: 48px;
  font-size: 10px;
  letter-spacing: 3px;
  color: rgba(255, 255, 255, 0.2);
  text-transform: uppercase;
}

.page {
  display: none;
  min-height: 100vh;
  padding-top: 80px;
}

.page.active {
  display: flex;
  flex-direction: column;
}

.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 48px;
  position: relative;
}

.hero-eyebrow {
  font-size: 9px;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: 32px;
}

.hero-image {
  width: 220px;
  height: 220px;
  object-fit: contain;
  margin: 0 auto 40px;
  opacity: 0.9;
}

.hero-title {
  font-family: 'VT323', monospace;
  font-size: 18px;
  letter-spacing: 6px;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  margin-bottom: 16px;
  line-height: 1.6;
  max-width: 560px;
}

.hero-sub {
  font-size: 10px;
  letter-spacing: 3px;
  color: rgba(255, 255, 255, 0.25);
  text-transform: uppercase;
}

.page-inner {
  flex: 1;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
  padding: 80px 48px;
}

.page-label {
  font-size: 9px;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.2);
  margin-bottom: 64px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.page-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255, 255, 255, 0.07);
}

.section-block {
  margin-bottom: 48px;
}

.section-heading {
  font-family: 'VT323', monospace;
  font-size: 32px;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 20px;
  color: var(--white);
}

.section-body {
  font-size: 12px;
  line-height: 2;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.5px;
}

.key-hint {
  margin-bottom: 0;
}

.divider {
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.07);
  margin: 48px 0;
}

.about-image-placeholder {
  width: 100%;
  height: 280px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 48px;
  gap: 12px;
}

.about-image-placeholder span {
  font-size: 9px;
  letter-spacing: 3px;
  color: rgba(255, 255, 255, 0.15);
  text-transform: uppercase;
}

.pgp-block {
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.pgp-header {
  padding: 10px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(255, 255, 255, 0.03);
}

.pgp-label {
  font-size: 8px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.2);
}

.pgp-body {
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.45);
  padding: 24px 20px;
  white-space: pre-wrap;
  word-break: break-all;
  letter-spacing: 0.3px;
  background: none;
  border: none;
  outline: none;
  resize: none;
  user-select: all;
}

.site-footer {
  padding: 24px 48px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copy {
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.15);
}

.footer-tag {
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.08);
}

@media (max-width: 768px) {
  nav {
    padding: 20px 24px;
  }

  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-footer {
    left: 24px;
    bottom: 32px;
  }

  .mobile-menu {
    padding: 80px 24px 48px;
  }

  .mobile-menu a {
    font-size: 44px;
  }

  .hero {
    padding: 60px 24px;
  }

  .hero-title {
    font-size: 15px;
  }

  .page-inner {
    padding: 60px 24px;
  }

  .site-footer {
    padding: 20px 24px;
  }

  .footer-tag {
    display: none;
  }

  .pgp-body {
    font-size: 10px;
  }
}