:root {
  /* Colors */
  --color-blue: #0000b8;
  --color-lime: #afdd31;
  --color-teal: #3dd9ba;
  --color-yellow: #ffd93d;
  --color-magenta: #ff00ff;
  --color-gray: #c8c8c8;
  --color-white: #ffffff;
  --color-black: #000000;

  /* Theme Mapping */
  --bg-main: var(--color-blue);
  --bg-panel: var(--color-gray);
  --bg-card: var(--color-white);
  --text-primary: var(--color-white);
  --text-inverse: var(--color-black);
  --border-primary: var(--color-black);

  /* Spacing & Borders */
  --border-heavy: 8px;
  --border-medium: 4px;
  --border-thin: 2px;
  --shadow-heavy: 12px 12px 0 var(--color-black);
  --shadow-medium: 8px 8px 0 var(--color-black);

  /* Fonts */
  --font-mono: "JetBrains Mono", monospace;
  --font-sans: "Noto Sans", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  background-image: url("../background-pattern.svg");
  background-repeat: repeat;
  background-size: 406px 406px;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
.mono {
  font-family: var(--font-mono);
  text-transform: uppercase;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 40px;
}

header {
  padding: 32px 0;
  background: transparent;
  z-index: 100;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 60px;
  width: auto;
  cursor: pointer;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 24px;
}

.lang-switch-wrapper {
  position: relative;
}

.lang-trigger {
  background: var(--color-white);
  color: var(--color-black);
  padding: 8px 16px;
  border: var(--border-thin) solid var(--color-black);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: var(--color-white);
  border: var(--border-thin) solid var(--color-black);
  box-shadow: 4px 4px 0 var(--color-black);
  z-index: 1000;
  min-width: 120px;
}

.lang-menu.active {
  display: block;
}

.lang-option {
  padding: 10px 16px;
  cursor: pointer;
  color: var(--color-black);
  font-family: var(--font-mono);
  font-size: 13px;
}

.lang-option:hover {
  background: var(--color-lime);
}

section {
  padding: 80px 0;
}

.hero {
  text-align: center;
  padding-top: 40px;
}

.app-title-wrap {
  margin-bottom: 40px;
}

.app-name {
  font-size: 64px;
  display: inline-block;
  background: var(--color-lime);
  color: var(--color-black);
  padding: 0 24px;
  border: var(--border-medium) solid var(--color-black);
  box-shadow: 8px 8px 0 var(--color-black);
  margin-bottom: 24px;
}

.app-short-desc {
  font-family: var(--font-mono);
  font-size: 18px;
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-black);
  padding: 8px 16px;
}

.hero-graphic {
  width: 100%;
  max-width: 800px;
  height: auto;
  border: var(--border-medium) solid var(--color-black);
  box-shadow: 12px 12px 0 var(--color-black);
  margin-top: 60px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 80px;
}

.feature-card {
  background: var(--color-white);
  border: var(--border-medium) solid var(--color-black);
  padding: 32px;
  color: var(--color-black);
  box-shadow: 8px 8px 0 var(--color-black);
}

.f-icon {
  font-size: 24px;
  color: var(--color-blue);
  margin-bottom: 16px;
  font-weight: 700;
  font-family: var(--font-mono);
}

.f-title {
  font-size: 20px;
  margin-bottom: 12px;
}

.f-desc {
  font-size: 14px;
  color: #444;
}

.screenshots-section {
  background: var(--bg-panel);
  color: var(--text-inverse);
  overflow: hidden;
}

.section-header {
  font-size: 48px;
  margin-bottom: 60px;
  border-bottom: var(--border-heavy) solid var(--color-black);
  display: inline-block;
  padding-right: 32px;
}

.screenshot-scroll {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding-bottom: 40px;
  padding-right: 40px;
  scrollbar-width: none;
}
.screenshot-scroll::-webkit-scrollbar {
  display: none;
}

.screenshot-scroll img {
  height: 500px;
  border: var(--border-medium) solid var(--color-black);
  box-shadow: 8px 8px 0 var(--color-black);
}

.full-desc-section {
  background: var(--color-white);
  color: var(--color-black);
}

.desc-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 16px;
}
.desc-content p {
  margin-bottom: 24px;
}
.desc-content h3 {
  margin: 40px 0 20px;
  background: var(--color-yellow);
  display: inline-block;
  padding: 4px 12px;
  border: var(--border-thin) solid var(--color-black);
}
.desc-content ul {
  margin-bottom: 24px;
  padding-left: 24px;
}
.desc-content li {
  margin-bottom: 8px;
}

footer {
  background-color: var(--bg-panel);
  padding: 80px 0;
  color: var(--color-black);
}
.footer-wrap {
  border-top: var(--border-medium) solid var(--color-black);
  padding-top: 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.f-info {
  font-family: var(--font-mono);
  font-size: 11px;
}
.f-logo {
  width: 100px;
  opacity: 0.8;
}

@media (max-width: 768px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .app-name {
    font-size: 40px;
  }
  .screenshot-scroll img {
    height: 400px;
  }
}