@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;800&family=Roboto:wght@300;400;500&family=Share+Tech+Mono&display=swap');

:root {
  --bg-color: #020202;
  --panel-bg: rgba(10, 15, 10, 0.95);
  --panel-soft: rgba(6, 10, 6, 0.9);
  --neon-green: #00ff41;
  --neon-dark: #008f11;
  --accent-rgb: 0, 255, 65;
  --text-main: #e0ffe0;
  --text-dim: #88a388;
  --text-secondary: #c7d8c7;
  --border-color: #1a3d1a;
  --border-dim: #0f1a0f;
  --danger-color: #ff003c;
}

* {
  box-sizing: border-box;
}

body.tsp-help {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  color: var(--text-main);
  background-color: var(--bg-color);
  overflow-x: hidden;
  background-image:
    linear-gradient(rgba(var(--accent-rgb), 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--accent-rgb), 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
}

body.tsp-help a {
  color: var(--neon-green);
  text-decoration: none;
}

body.tsp-help a:hover {
  text-decoration: underline;
}

a {
  color: var(--neon-green);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  font-family: 'Share Tech Mono', monospace;
  color: var(--neon-green);
}

.hero {
  padding: 60px 20px 40px;
  background: radial-gradient(circle at top, rgba(var(--accent-rgb), 0.15), transparent 65%);
  border-bottom: 1px solid var(--border-color);
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.hero-logo {
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  border: 1px solid rgba(var(--accent-rgb), 0.25);
  background: rgba(0, 0, 0, 0.35);
  box-shadow: 0 0 14px rgba(var(--accent-rgb), 0.22);
  border-radius: 8px;
  padding: 4px;
}

.hero-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(28px, 5vw, 48px);
  margin: 0;
  text-shadow: 0 0 12px rgba(var(--accent-rgb), 0.6);
  line-height: 1.15;
}

.hero-badge {
  align-self: flex-start;
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--neon-green);
  border: 1px solid var(--neon-dark);
  padding: 6px 10px;
  background: rgba(var(--accent-rgb), 0.06);
}

.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--neon-dark);
  background: rgba(var(--accent-rgb), 0.05);
}

.lang-btn {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--text-main);
  font-family: 'Share Tech Mono', monospace;
  letter-spacing: 2px;
  padding: 10px 12px;
  cursor: pointer;
  min-width: 52px;
  transition: all 0.2s ease;
  border-right: 1px solid var(--border-dim);
}

.lang-btn:last-child {
  border-right: none;
}

.lang-btn[aria-pressed="true"] {
  background: rgba(var(--accent-rgb), 0.16);
  color: var(--neon-green);
  box-shadow: inset 0 0 18px rgba(var(--accent-rgb), 0.18);
}

.lang-btn:hover {
  color: var(--neon-green);
}

.lang {
  display: none;
}

body[data-lang="en"] .lang-en {
  display: block;
}

body[data-lang="sk"] .lang-sk {
  display: block;
}

.hero-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 680px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  font-size: 13px;
  color: var(--text-dim);
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--neon-dark);
  text-transform: uppercase;
  font-family: 'Orbitron', sans-serif;
  font-size: 12px;
  letter-spacing: 1px;
  background: transparent;
  color: var(--text-main);
  transition: all 0.2s ease;
}

.btn.primary {
  border-color: var(--neon-green);
  color: var(--neon-green);
  background: rgba(var(--accent-rgb), 0.08);
}

.btn:hover {
  border-color: var(--neon-green);
  color: var(--neon-green);
  box-shadow: 0 0 12px rgba(var(--accent-rgb), 0.3);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 30px 20px 60px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.card {
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  padding: 24px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  width: 12px;
  height: 12px;
  border-top: 2px solid var(--neon-green);
  border-left: 2px solid var(--neon-green);
}

.card::after {
  content: '';
  position: absolute;
  bottom: -1px;
  right: -1px;
  width: 12px;
  height: 12px;
  border-bottom: 2px solid var(--neon-green);
  border-right: 2px solid var(--neon-green);
}

.card h2 {
  margin-top: 0;
  font-family: 'Orbitron', sans-serif;
  color: var(--neon-green);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 20px;
}

.card h3 {
  font-family: 'Orbitron', sans-serif;
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 8px;
}

.legacy-wrapper {
  padding: 0;
  overflow: hidden;
}

.legacy-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background: rgba(var(--accent-rgb), 0.08);
  border-bottom: 1px solid var(--border-color);
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  letter-spacing: 1px;
}

.legacy-label {
  color: var(--neon-green);
  text-transform: uppercase;
}

.legacy-note {
  color: var(--text-dim);
}

.legacy-doc {
  padding: 20px;
  background: var(--panel-bg);
  color: var(--text-main);
  line-height: 1.6;
  font-size: 14px;
}

.legacy-doc,
.legacy-doc * {
  background: transparent !important;
  color: var(--text-main) !important;
  font-family: 'Roboto', sans-serif !important;
}

.legacy-doc h1,
.legacy-doc h2,
.legacy-doc h3,
.legacy-doc h4 {
  color: var(--neon-green) !important;
  font-family: 'Orbitron', sans-serif !important;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.legacy-doc a {
  color: var(--neon-green) !important;
}

.legacy-doc img {
  max-width: 100% !important;
  height: auto !important;
  border: 1px solid var(--border-color);
  display: block;
  margin: 10px 0;
}

.legacy-doc table {
  width: 100% !important;
  border-collapse: collapse !important;
}

.legacy-doc td,
.legacy-doc th {
  border: 1px solid var(--border-dim) !important;
  padding: 6px 8px !important;
}

.legacy-doc ul,
.legacy-doc ol {
  padding-left: 20px !important;
}

.toc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px 16px;
}

.toc a {
  padding: 8px 10px;
  background: var(--panel-soft);
  border: 1px solid var(--border-dim);
}

.toc a:hover {
  border-color: var(--neon-green);
}

.icon-list,
.mono-list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 6px;
}

.mono-list li {
  font-family: 'Share Tech Mono', monospace;
}

.menu-grid,
.split,
.algo-list {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.menu-item {
  padding: 12px 14px;
  background: var(--panel-soft);
  border: 1px solid var(--border-dim);
}

.algo {
  padding: 12px 14px;
  border: 1px solid var(--border-dim);
  background: rgba(0, 20, 0, 0.4);
}

.callout {
  margin-top: 18px;
  padding: 12px 14px;
  border-left: 3px solid var(--neon-green);
  background: rgba(var(--accent-rgb), 0.05);
  color: var(--text-secondary);
}

.note {
  color: var(--text-dim);
}

.steps {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 8px;
}

.figure {
  margin: 16px 0;
  padding: 14px;
  background: var(--panel-soft);
  border: 1px solid var(--border-dim);
}

.figure img {
  width: 100%;
  height: auto;
  border: 1px solid var(--border-color);
  display: block;
}

.caption {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-dim);
}

.example {
  padding: 12px 14px;
  background: rgba(0, 20, 0, 0.3);
  border: 1px solid var(--border-dim);
}

.screenshot-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.shot {
  display: block;
  border: 1px solid var(--border-dim);
  background: rgba(0, 0, 0, 0.35);
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.shot:hover {
  border-color: var(--neon-green);
  transform: translateY(-1px);
  box-shadow: 0 0 18px rgba(var(--accent-rgb), 0.18);
  text-decoration: none;
}

.shot img {
  width: 100%;
  height: 140px;
  object-fit: contain;
  background: #ffffff;
  display: block;
  border-bottom: 1px solid var(--border-dim);
}

.shot-caption {
  padding: 8px 10px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: 1px;
}

.footer {
  padding: 24px 20px 36px;
  border-top: 1px solid var(--border-color);
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
}

@media (max-width: 720px) {
  .hero {
    padding: 40px 16px 30px;
  }

  .hero-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .lang-toggle {
    position: fixed;
    top: calc(10px + env(safe-area-inset-top, 0px));
    right: 10px;
    width: 132px;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(6px);
    box-shadow: 0 0 18px rgba(var(--accent-rgb), 0.14);
  }

  .lang-btn {
    flex: 1;
    padding: 10px 10px;
    min-width: 0;
  }

  .hero-meta {
    flex-direction: column;
    gap: 6px;
  }

  .container {
    padding: 24px 16px 50px;
  }

  .card {
    padding: 16px;
  }

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

  .menu-grid,
  .split,
  .algo-list {
    grid-template-columns: 1fr;
  }

  .screenshot-grid {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }

  .shot img {
    height: 160px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-actions .btn {
    width: 100%;
  }
}