/* CptLog Landing Page — Cyberpunk / Star Trek inspired theme (full CRT) */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

:root {
  /* Colors from app ColorPaletteOverride + cyberpunk */
  --color-primary: #00E5FF;
  --color-primary-dim: rgba(0, 229, 255, 0.6);
  --color-secondary: #D500F9;
  --color-secondary-dim: rgba(213, 0, 249, 0.6);
  --color-tertiary: #FFD600;
  --color-tertiary-dim: rgba(255, 214, 0, 0.6);
  --color-background: #09090F;
  --color-surface: #0E0E1C;
  --color-surface-variant: #16162A;
  --color-text: #E0E0FF;
  --color-text-muted: #7878B0;
  --color-outline: #00889A;
  --color-error: #FF1744;

  /* Typography */
  --font-heading: 'Orbitron', sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Layout */
  --max-width: 1200px;
  --header-height: 64px;
  --border-radius: 8px;
  --border-radius-lg: 12px;

  /* Effects */
  --glow-primary: 0 0 20px var(--color-primary-dim), 0 0 40px var(--color-primary-dim);
  --glow-secondary: 0 0 20px var(--color-secondary-dim);
  --shadow-surface: 0 4px 24px rgba(0, 0, 0, 0.4);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-text);
  background-color: var(--color-background);
  background-image:
    linear-gradient(
      to bottom,
      transparent 0%,
      transparent 70%,
      transparent 85%,
      rgba(0, 229, 255, 0.02) 88%,
      rgba(0, 229, 255, 0.12) 90%,
      rgba(0, 229, 255, 0.02) 92%,
      transparent 95%
    ),
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 229, 255, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(213, 0, 249, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 20% 100%, rgba(0, 229, 255, 0.05) 0%, transparent 50%);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* CRT background layer (canvas + grid, with blur + distortion) */
.crt-background {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  filter: url(#crt-distort);
}

.crt-background::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.2) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.2) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: 0 0;
  box-shadow: inset 0 0 120px rgba(0, 229, 255, 0.03);
  pointer-events: none;
  z-index: 1;
}

.tron-lights {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

/* CRT TV noise overlay */
.crt-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 60;
  background: rgba(128, 128, 128, 0.5);
  filter: url(#crt-noise);
}

/* CRT vignette (darkened edges) */
.crt-vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  background: radial-gradient(
    ellipse 55% 55% at 50% 50%,
    transparent 0%,
    transparent 35%,
    rgba(0, 0, 0, 0.5) 80%,
    rgba(0, 0, 0, 0.75) 100%
  );
}

/* Fake screen distortion (curved edges) */
.crt-screen {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 45;
  border-radius: 1.5%;
  box-shadow: inset 0 0 100px 30px rgba(0, 0, 0, 0.2);
}

/* CRT scan-line overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 1px,
    rgba(0, 0, 0, 0.12) 1px,
    rgba(0, 0, 0, 0.12) 2px
  );
  pointer-events: none;
  z-index: 1000;
}

/* Content wrapper — above all CRT overlays */
.site-content {
  position: relative;
  z-index: 1100;
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* Header — distinct from CRT background */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  height: var(--header-height);
  background: rgba(9, 9, 15, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 229, 255, 0.3);
  box-shadow: var(--shadow-surface), 0 0 40px rgba(0, 0, 0, 0.3);
}

.site-header .inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  text-shadow: var(--glow-primary);
  letter-spacing: 0.05em;
}

.logo:hover {
  color: var(--color-primary);
  opacity: 0.9;
}

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

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

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--border-radius);
  transition: color 0.2s, background 0.2s, box-shadow 0.2s;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-primary);
  background: rgba(0, 229, 255, 0.08);
  outline: none;
}

.nav-link.cta {
  color: var(--color-background);
  background: var(--color-primary);
  box-shadow: var(--glow-primary);
}

.nav-link.cta:hover,
.nav-link.cta:focus-visible {
  background: var(--color-primary);
  box-shadow: 0 0 30px var(--color-primary-dim), 0 0 60px var(--color-primary-dim);
}

/* Dropdown */
.dropdown {
  position: relative;
}

.dropdown-trigger {
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
  font: inherit;
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  border-radius: var(--border-radius);
  transition: color 0.2s, background 0.2s;
}

.dropdown-trigger:hover,
.dropdown-trigger:focus-visible,
.dropdown.open .dropdown-trigger {
  color: var(--color-primary);
  background: rgba(0, 229, 255, 0.08);
  outline: none;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: var(--space-xs);
  min-width: 180px;
  padding: var(--space-sm);
  background: var(--color-surface);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-surface), var(--glow-secondary);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  z-index: 200;
}

.dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  display: block;
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.875rem;
  border-radius: var(--border-radius);
  transition: color 0.2s, background 0.2s;
}

.dropdown-menu a:hover,
.dropdown-menu a:focus-visible {
  color: var(--color-primary);
  background: rgba(0, 229, 255, 0.08);
  outline: none;
}

/* Language switcher */
.lang-switcher {
  display: flex;
  gap: 0;
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.lang-switcher a {
  padding: var(--space-xs) var(--space-md);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 500;
  transition: color 0.2s, background 0.2s;
}

.lang-switcher a:hover,
.lang-switcher a.active {
  color: var(--color-primary);
  background: rgba(0, 229, 255, 0.1);
}

/* Main content — elevated above CRT effects */
main {
  flex: 1;
  position: relative;
  z-index: 100;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Hero */
.hero {
  padding: var(--space-3xl) 0;
  text-align: center;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--color-primary);
  text-shadow: var(--glow-primary);
  margin: 0 0 var(--space-md);
  letter-spacing: 0.05em;
}

.hero .tagline {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-text);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-background);
  background: var(--color-primary);
  border: none;
  border-radius: var(--border-radius);
  text-decoration: none;
  box-shadow: var(--glow-primary);
  transition: box-shadow 0.2s, transform 0.2s;
}

.hero-cta:hover,
.hero-cta:focus-visible {
  box-shadow: 0 0 30px var(--color-primary-dim), 0 0 60px var(--color-primary-dim);
  transform: translateY(-2px);
  outline: none;
}

/* Features */
.features {
  padding: var(--space-3xl) 0;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--color-primary);
  text-align: center;
  margin: 0 0 var(--space-2xl);
  letter-spacing: 0.05em;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.feature-card {
  padding: var(--space-xl);
  background: rgba(14, 14, 28, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 229, 255, 0.35);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-surface), 0 0 30px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.03);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  border-color: rgba(0, 229, 255, 0.5);
  box-shadow: var(--shadow-surface), 0 0 30px rgba(0, 229, 255, 0.15), 0 0 60px rgba(0, 0, 0, 0.2);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
  color: var(--color-secondary);
}

.feature-card h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-sm);
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.6;
}

/* Download section */
.download {
  padding: var(--space-3xl) 0;
}

.download-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  color: #FFFFFF;
  background: var(--color-surface);
  border: 1px solid rgba(0, 229, 255, 0.4);
  border-radius: var(--border-radius);
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.download-btn:hover,
.download-btn:focus-visible {
  background: rgba(0, 229, 255, 0.15);
  border-color: var(--color-primary);
  box-shadow: var(--glow-primary);
  outline: none;
}

.download-btn.play {
  border-color: rgba(255, 214, 0, 0.4);
}

.download-btn.play:hover,
.download-btn.play:focus-visible {
  border-color: var(--color-tertiary);
  box-shadow: 0 0 20px var(--color-tertiary-dim);
}

/* Footer — distinct from CRT background */
.site-footer {
  margin-top: auto;
  padding: var(--space-xl) 0 var(--space-lg);
  border-top: 1px solid rgba(0, 229, 255, 0.3);
  background: rgba(14, 14, 28, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 -4px 30px rgba(0, 0, 0, 0.2);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-copyright {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Legal pages */
.legal-page {
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.legal-page h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 var(--space-xl);
  letter-spacing: 0.05em;
}

.legal-content {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-xl);
  background: rgba(14, 14, 28, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 229, 255, 0.35);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.03);
  line-height: 1.8;
}

.legal-content p {
  margin: 0 0 var(--space-md);
}

.legal-content h2 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-text);
  margin: var(--space-xl) 0 var(--space-md);
}

.legal-content h3 {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: var(--space-lg) 0 var(--space-sm);
}

.legal-content a {
  color: var(--color-primary);
  text-decoration: none;
}

.legal-content a:hover {
  text-decoration: underline;
}

.legal-content[data-lang="de"] { display: none; }
.legal-content[data-lang="en"] { display: block; }
body.lang-de .legal-content[data-lang="en"] { display: none; }
body.lang-de .legal-content[data-lang="de"] { display: block; }

/* Changelog page */
.changelog-page {
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.changelog-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 var(--space-xl);
  letter-spacing: 0.05em;
}

.changelog-stack {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.changelog-version {
  background: rgba(14, 14, 28, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 229, 255, 0.35);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-surface), 0 0 30px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.changelog-version-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background: none;
  border: none;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: background 0.2s, color 0.2s;
}

.changelog-version-header:hover,
.changelog-version-header:focus-visible {
  background: rgba(0, 229, 255, 0.08);
  color: var(--color-primary);
  outline: none;
}

.changelog-version-tag {
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

.changelog-version-chevron {
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--color-text-muted);
  transition: transform 0.2s;
}

.changelog-version.is-expanded .changelog-version-chevron {
  transform: rotate(180deg);
  border-top-color: var(--color-primary);
}

.changelog-version-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.changelog-version.is-expanded .changelog-version-body {
  max-height: 2000px;
  transition: max-height 0.4s ease-in;
}

.changelog-content {
  padding: 0 var(--space-lg) var(--space-lg);
  border-top: 1px solid rgba(0, 229, 255, 0.15);
  line-height: 1.8;
}

.changelog-content p {
  margin: 0 0 var(--space-md);
  color: var(--color-text-muted);
}

.changelog-content h3 {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  color: var(--color-text);
  margin: var(--space-lg) 0 var(--space-sm);
}

.changelog-content h3.glow-blue {
  color: var(--color-primary);
  text-shadow: 0 0 12px var(--color-primary-dim), 0 0 24px var(--color-primary-dim);
}

.changelog-content h3.glow-yellow {
  color: var(--color-tertiary);
  text-shadow: 0 0 12px var(--color-tertiary-dim), 0 0 24px var(--color-tertiary-dim);
}

.changelog-content h3.glow-yellow + ul li {
  color: var(--color-tertiary);
  text-shadow: 0 0 10px var(--color-tertiary-dim), 0 0 20px var(--color-tertiary-dim);
}

.changelog-content li strong {
  text-shadow: 0 0 10px var(--color-primary-dim), 0 0 20px var(--color-primary-dim);
}

.changelog-content ul {
  margin: 0 0 var(--space-md);
  padding-left: var(--space-lg);
  color: var(--color-text-muted);
}

.changelog-content li {
  margin-bottom: var(--space-xs);
}

.changelog-page a {
  color: var(--color-primary);
  text-decoration: none;
}

.changelog-page a:hover {
  text-decoration: underline;
}

/* Mobile menu (simplified) */
@media (max-width: 768px) {
  .nav-list {
    flex-direction: column;
    align-items: stretch;
  }

  .nav {
    flex-wrap: wrap;
  }

  .hero {
    padding: var(--space-2xl) 0;
  }

  .download-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}