/* Ultra-Premium Design System - Instant Recycling */

/* ===== CSS VARIABLES ===== */
:root {
  /* Premium Color Palette */
  --color-primary: #10b981;
  --color-primary-dark: #059669;
  --color-primary-light: #34d399;
  --color-secondary: #3b82f6;
  --color-secondary-dark: #2563eb;
  --color-accent: #8b5cf6;
  --color-accent-dark: #7c3aed;

  /* Neutral Colors */
  --color-bg: #0a0f1a;
  --color-bg-light: #111827;
  --color-bg-lighter: #1f2937;
  --color-surface: #1e293b;
  --color-text: #f8fafc;
  --color-text-muted: #94a3b8;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #10b981 0%, #3b82f6 50%, #8b5cf6 100%);
  --gradient-glow: radial-gradient(circle at center, rgba(16, 185, 129, 0.3), transparent 70%);
  --gradient-subtle: linear-gradient(135deg, #10b981 0%, #2563eb 100%); /* NEUE ZEILE */

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  --spacing-4xl: 8rem;

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", var(--font-sans);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(16, 185, 129, 0.4);

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ===== GLOBAL RESET ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}



main {
    flex-grow: 1; /* Erlaubt dem Hauptinhalt, zu wachsen und allen verfügbaren Platz einzunehmen */
}

/* ===== CONTAINER ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ===== ULTRA-PREMIUM HEADER ===== */
.header-ultra {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-md) 0;
  transition: all var(--transition-base);
 
}



.header-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-primary);
  border-radius: 50%;
  opacity: 0.6;
  animation: float-particle 20s infinite ease-in-out;
}

.particle:nth-child(1) {
  left: 10%;
  animation-delay: 0s;
}
.particle:nth-child(2) {
  left: 30%;
  animation-delay: 2s;
}
.particle:nth-child(3) {
  left: 50%;
  animation-delay: 4s;
}
.particle:nth-child(4) {
  left: 70%;
  animation-delay: 6s;
}
.particle:nth-child(5) {
  left: 90%;
  animation-delay: 8s;
}

@keyframes float-particle {
  0%,
  100% {
    transform: translateY(0) translateX(0);
    opacity: 0;
  }
  10% {
    opacity: 0.6;
  }
  50% {
    transform: translateY(-100vh) translateX(50px);
    opacity: 0.3;
  }
  90% {
    opacity: 0.6;
  }
}

.header-blur {
  position: absolute;
  inset: 0;
  background: rgba(10, 15, 26, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  
}

.header-ultra.scrolled {
  padding: var(--spacing-sm) 0;
  box-shadow: var(--shadow-lg);
}

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

.logo-ultra a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  position: relative;
}

.logo-glow-ring {
  position: absolute;
  left: -5px;
  top: -5px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--gradient-glow);
  opacity: 0;
  transition: opacity var(--transition-base);
  animation: pulse-ring 3s infinite;
}

.logo-ultra a:hover .logo-glow-ring {
  opacity: 1;
}

@keyframes pulse-ring {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.2);
    opacity: 0;
  }
}

.logo-ultra img {
  width: 50px;
  height: 50px;
  transition: transform var(--transition-base);
  filter: drop-shadow(0 0 10px rgba(16, 185, 129, 0.3));
}

.logo-ultra a:hover img {
  transform: rotate(360deg) scale(1.1);
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.nav-ultra {
  display: flex;
  align-items: center;
}

.nav-menu-ultra {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-link-ultra {
  position: relative; /* Wichtig für die Positionierung der Linie */
  padding-bottom: 8px;
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  transition: color var(--transition-base);
  overflow: hidden;
}

.nav-link-ultra::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transform: translateX(-50%);
  transition: width var(--transition-base);
}

.nav-link-ultra::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--gradient-primary); /* Verwendet Ihren Haupt-Farbverlauf */
    border-radius: 2px;
    transition: width 0.4s cubic-bezier(0.2, 1, 0.2, 1);
}

.nav-link-ultra:hover::after {
    width: 100%; /* Linie dehnt sich auf die volle Breite aus */
}

.nav-link-ultra:hover,
.nav-link-ultra.active {
  color: var(--color-text);
}

.nav-link-ultra:hover::before,
.nav-link-ultra.active::before {
  width: 100%;
}

.nav-toggle-ultra {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav-toggle-ultra span {
  width: 28px;
  height: 3px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

/* ===== HERO SECTION ===== */
.hero-ultra {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-4xl) var(--spacing-lg);
  overflow: hidden;
  background: radial-gradient(ellipse at top, rgba(16, 185, 129, 0.15), transparent 50%),
    radial-gradient(ellipse at bottom, rgba(59, 130, 246, 0.15), transparent 50%);
}

.hero-background-ultra {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.background-pattern-ultra {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.08;
  z-index: 0;
  animation: subtle-pulse 8s ease-in-out infinite;
}

@keyframes subtle-pulse {
  0%,
  100% {
    opacity: 0.08;
    transform: scale(1);
  }
  50% {
    opacity: 0.12;
    transform: scale(1.05);
  }
}

.hero-logo-ultra-container {
  position: relative;
  width: 280px;
  height: 280px;
  margin: 0 auto var(--spacing-2xl);
  z-index: 2;
}

.hero-logo-ultra {
  width: 100%;
  height: 100%;
  object-fit: contain;
  position: relative;
  z-index: 2;
  animation: float-logo-premium 6s ease-in-out infinite;
  filter: drop-shadow(0 0 40px rgba(16, 185, 129, 0.6)) drop-shadow(0 0 80px rgba(16, 185, 129, 0.3));
}

@keyframes float-logo-premium {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-15px) rotate(2deg);
  }
  50% {
    transform: translateY(-25px) rotate(0deg);
  }
  75% {
    transform: translateY(-15px) rotate(-2deg);
  }
}

.logo-pulse {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.4), transparent 70%);
  animation: pulse-glow 3s ease-in-out infinite;
  z-index: 1;
}

@keyframes pulse-glow {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.3);
    opacity: 0;
  }
}

.hero-content-ultra {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 var(--spacing-lg);
}

.hero-title-ultra {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--spacing-xl);
  letter-spacing: -0.04em;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.7), 0 0 60px rgba(16, 185, 129, 0.3);
}

.title-line-ultra {
  display: inline-block;
  margin-bottom: 0;
  margin-right: 0.5rem;
}

.char {
  display: inline-block;
  animation: char-appear 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
  opacity: 0;
  animation-delay: calc(var(--char-index) * 0.05s + 1s);
}

@keyframes char-appear {
  0% {
    opacity: 0;
    transform: translateY(30px) rotate(-10deg);
  }
  100% {
    opacity: 1;
    transform: translateY(0) rotate(0deg);
  }
}

.title-highlight-ultra {
  display: block;
  position: relative;
}

.gradient-text {
  background: linear-gradient(135deg, #10b981 0%, #3b82f6 50%, #8b5cf6 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 8s ease infinite;
  position: relative;
  display: inline-block;
}

@keyframes gradient-shift {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

.hero-subtitle-ultra {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  color: #e2e8f0;
  margin-bottom: var(--spacing-2xl);
  animation: fade-in-up 1s ease-out 1.5s backwards;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-buttons-ultra {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  animation: fade-in-up 1s ease-out 1.8s backwards;
  margin-bottom: var(--spacing-3xl);
  width: 100%;
}

/* ===== ULTRA-PREMIUM BUTTONS ===== */
.btn-ultra {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-full);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: 2px solid transparent;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.experiment-text-ultra .btn-ultra,
.column-ultra .btn-ultra {
  margin-top: var(--spacing-xl);
}
.btn-ultra-primary {
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
  box-shadow: 0 10px 40px rgba(16, 185, 129, 0.5), 0 0 60px rgba(16, 185, 129, 0.2);
}

.btn-ultra-primary:hover {
  transform: translateY(-4px) scale(1.05);
  filter: brightness(1.1);
  animation: pulse-glow 2s infinite;
}

.btn-ultra-glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.2);
  color: white;
}

.btn-ultra-glass:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 20px 60px rgba(255, 255, 255, 0.1);
}

.btn-ultra-accent {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  color: white;
  box-shadow: 0 10px 40px rgba(59, 130, 246, 0.4);
}

.btn-ultra-accent:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 50px rgba(59, 130, 246, 0.6);
}

.btn-ultra-cta {
  background: var(--gradient-primary);
  color: white;
  padding: 1.25rem 2.5rem;
  font-size: 1.25rem;
  box-shadow: 0 15px 50px rgba(16, 185, 129, 0.5);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.btn-ultra-cta:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 20px 60px rgba(16, 185, 129, 0.7);
}

.btn-glow-effect {
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s;
}

.btn-ultra:hover .btn-glow-effect {
  transform: translateX(100%);
}

.btn-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.btn-particles span {
  position: absolute;
  width: 4px;
  height: 4px;
  background: white;
  border-radius: 50%;
  opacity: 0;
}

.btn-ultra:hover .btn-particles span {
  animation: particle-burst 0.8s ease-out;
}

.btn-particles span:nth-child(1) {
  left: 20%;
  animation-delay: 0s;
}
.btn-particles span:nth-child(2) {
  left: 50%;
  animation-delay: 0.1s;
}
.btn-particles span:nth-child(3) {
  left: 80%;
  animation-delay: 0.2s;
}

@keyframes particle-burst {
  0% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(-30px);
  }
}

.btn-icon {
  transition: transform var(--transition-base);
}

.btn-ultra:hover .btn-icon {
  transform: translateX(5px);
}

.magnetic-btn {
  transition: transform var(--transition-fast);
}

/* ===== SCROLL INDICATOR ===== */
.scroll-indicator-ultra {
  position: absolute;
  bottom: 8vh;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  z-index: 2;
  animation: fade-in-up 1s ease-out 2s backwards;
  will-change: opacity;
}

.scroll-mouse {
  width: 30px;
  height: 50px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 20px;
  position: relative;
}

.scroll-wheel {
  width: 4px;
  height: 10px;
  background: var(--color-primary);
  border-radius: 2px;
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll-wheel 2s infinite;
}

@keyframes scroll-wheel {
  0%,
  100% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  50% {
    opacity: 0;
    transform: translateX(-50%) translateY(15px);
  }
}

.scroll-text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.scroll-arrow {
  font-size: 1.5rem;
  color: var(--color-primary);
  animation: bounce-arrow 2s infinite;
}

@keyframes bounce-arrow {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(10px);
  }
}

/* ===== SECTIONS ===== */
.recycling-experiment-ultra,
.features-ultra,
.about-ultra {
  position: relative;
  padding: var(--spacing-4xl) 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.95) 100%);
  overflow: hidden;
}

.section-background {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.floating-shapes {
  position: absolute;
  inset: 0;
}

.shape {
  position: absolute;
  opacity: 0.1;
  animation: float-shape 20s infinite ease-in-out;
}

.shape-circle {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: var(--color-primary);
  top: 10%;
  left: 10%;
}

.shape-triangle {
  width: 0;
  height: 0;
  border-left: 100px solid transparent;
  border-right: 100px solid transparent;
  border-bottom: 173px solid var(--color-secondary);
  top: 50%;
  right: 10%;
  animation-delay: 5s;
}

.shape-square {
  width: 150px;
  height: 150px;
  background: var(--color-accent);
  bottom: 20%;
  left: 20%;
  animation: float-shape 20s ease-in-out infinite;
  animation-delay: 10s;
  opacity: 0.1;
}

@keyframes float-shape {
  0%,
  100% {
    transform: translate(0, 0);
  }
  33% {
    transform: translate(50px, -50px);
  }
  66% {
    transform: translate(-30px, 30px);
  }
}

/* Section Headings */
.section-heading-ultra,
.hero-title-ultra,
.cta-title-ultra {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  margin-bottom: var(--spacing-2xl);
  display: inline-block;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.heading-number {
  font-size: 1.5rem;
  color: var(--color-primary);
  opacity: 0.5;
  font-weight: 300;
}

.heading-accent-ultra {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.heading-underline {
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 100px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  animation: expand-line 1s ease-out;
}

@keyframes expand-line {
  from {
    width: 0;
  }
  to {
    width: 100px;
  }
}

.reveal-text {
  animation: reveal-text 1s ease-out;
}

@keyframes reveal-text {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Experiment Section */
.experiment-content-ultra {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  margin-top: var(--spacing-2xl);
}

.experiment-card-ultra {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  border: 2px solid rgba(16, 185, 129, 0.3);
}

.experiment-card-ultra img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.experiment-card-ultra:hover img {
  transform: scale(1.08);
}

.card-shine-effect {
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.2) 50%, transparent 70%);
  transform: translateX(-100%) skewX(-15deg);
  transition: transform 0.8s;
}

.experiment-card-ultra:hover .card-shine-effect {
  transform: translateX(100%) skewX(-15deg);
}

/* Features Grid */
.features-grid-ultra {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-2xl);
}

.feature-card-ultra {
  position: relative;
  padding: var(--spacing-2xl);
  border-radius: var(--radius-2xl);
  background: rgba(30, 41, 59, 0.6);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.2);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.feature-card-ultra::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(59, 130, 246, 0.1));
  opacity: 0;
  transition: opacity 0.5s;
}

.feature-card-ultra:hover::before {
  opacity: 1;
}

.feature-card-ultra:hover {
  transform: translateY(-12px);
  border-color: rgba(16, 185, 129, 0.5);
  box-shadow: 0 30px 80px rgba(16, 185, 129, 0.3), 0 0 60px rgba(16, 185, 129, 0.2);
}

.card-border-glow {
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, #10b981, #3b82f6, #8b5cf6);
  border-radius: var(--radius-2xl);
  opacity: 0;
  transition: opacity 0.5s;
  z-index: -1;
  filter: blur(10px);
  animation: rotate-gradient 8s linear infinite;
}

@keyframes rotate-gradient {
  0% {
    filter: hue-rotate(0deg);
  }
  100% {
    filter: hue-rotate(360deg);
  }
}

.feature-card-ultra:hover .card-border-glow {
  opacity: 0.6;
}

.feature-logo-ultra {
  position: relative;
  z-index: 1;
  margin-bottom: var(--spacing-md);
}

.tech-logo-ultra {
  width: 60px;
  height: 60px;
  filter: grayscale(100%) brightness(0.8);
  transition: all var(--transition-base);
}

.feature-card-ultra:hover .tech-logo-ultra {
  filter: grayscale(0%) brightness(1);
  transform: scale(1.1);
}

.feature-icon-ultra {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.feature-card-ultra h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.feature-card-ultra p {
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
  position: relative;
  z-index: 1;
}

.feature-link-ultra {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  z-index: 1;
}

.feature-link-ultra:hover {
  gap: var(--spacing-sm);
  color: var(--color-primary-light);
  text-shadow: 0 0 20px rgba(16, 185, 129, 0.5);
  transform: translateX(4px);
}

.link-arrow-ultra {
  transition: transform var(--transition-base);
}

.feature-link-ultra:hover .link-arrow-ultra {
  transform: translateX(5px);
}

/* About Section */
.about-content-ultra {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.stats-ultra {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-xl);
  margin: var(--spacing-2xl) 0;
}

.stat-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-lg);
  border: 2px solid rgba(16, 185, 129, 0.3);
  transition: all var(--transition-base);
}

.stat-item:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-lg);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}

.stat-suffix {
  display: inline;
  font-size: 2rem;
}

.stat-label {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.image-frame-ultra {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  padding: var(--spacing-md);
}

.image-frame-ultra img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  display: block;
}

.frame-glow-ultra {
  position: absolute;
  inset: 0;
  background: var(--gradient-glow);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.image-frame-ultra:hover .frame-glow-ultra {
  opacity: 1;
}

/* CTA Section */
.cta-ultra {
  position: relative;
  padding: var(--spacing-4xl) 0;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
}

.cta-background-ultra {
  position: absolute;
  inset: 0;
}

.cta-gradient-mesh {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.mesh-sphere {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: mesh-float 20s ease-in-out infinite;
}

.mesh-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #10b981, transparent);
  top: -200px;
  left: -100px;
}

.mesh-2 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #3b82f6, transparent);
  bottom: -250px;
  right: -150px;
  animation-delay: 5s;
}

.mesh-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #8b5cf6, transparent);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: 10s;
}

@keyframes mesh-float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(50px, -50px) scale(1.1);
  }
  66% {
    transform: translate(-30px, 30px) scale(0.9);
  }
}

.cta-content-ultra {
  position: relative;
  background: rgba(17, 24, 39, 0.95);
  backdrop-filter: blur(20px);
  padding: var(--spacing-lg);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  box-shadow: var(--shadow-xl);
}

.cta-title-ultra {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.cta-text-ultra {
  font-size: 1.25rem;
  color: #e2e8f0;
  margin-bottom: var(--spacing-xl);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* ===== PAGE HERO (for other pages) ===== */
.page-hero-ultra {
  position: relative;
  padding: calc(80px + var(--spacing-3xl)) var(--spacing-lg) var(--spacing-2xl);
  overflow: hidden;
  margin-bottom: var(--spacing-2xl);
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  text-align: center;
}

.page-hero-background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: var(--spacing-sm);
  position: relative;
  z-index: 1;
  line-height: 1.1;
}

.page-hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  color: rgba(255, 255, 255, 0.7);
  position: relative;
  z-index: 1;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== PAGE CONTENT ===== */
.page-content-ultra {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(to bottom, #0f172a 0%, #1e293b 100%);
  min-height: 60vh;
}

.content-section-ultra {
  margin-bottom: var(--spacing-3xl);
}

.section-title-ultra {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  position: relative;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.lead-ultra {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
}

/* Mindmap Preview */
.mindmap-preview-card {
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  border: 2px solid rgba(16, 185, 129, 0.3);
}

.mindmap-container {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 800px;
  margin: 0 auto;
}

.mindmap-link {
  display: block;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.mindmap-image {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.mindmap-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.mindmap-link:hover .mindmap-overlay {
  opacity: 1;
}

.mindmap-link:hover .mindmap-image {
  transform: scale(1.05);
  filter: brightness(1.1);
}

.mindmap-zoom-icon {
  font-size: 3rem;
}

.mindmap-text {
  font-size: 1.25rem;
  font-weight: 600;
  color: white;
}

/* Two Column Layout */
.two-column-ultra {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.column-ultra {
  position: relative;
}

.content-image-wrapper {
  padding: var(--spacing-md);
}

.content-image-small {
  width: 100%;
  max-width: 300px;
  height: auto;
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
}

/* Credits Grid */
.credits-grid-ultra {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.credit-item-ultra {
  padding: var(--spacing-lg);
  text-align: center;
  transition: all var(--transition-base);
  border: 2px solid rgba(16, 185, 129, 0.3);
}

.credit-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

.credit-item-ultra h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.credit-item-ultra p {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* Download Section */
.requirements-ultra {
  position: relative;
  padding: var(--spacing-xl) 0;
  overflow: hidden;
  border: 2px solid rgba(16, 185, 129, 0.3);
}

.requirements-particle-field {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.4;
  z-index: 0;
}

#particleCanvas {
  width: 100%;
  height: 100%;
}

.requirements-content {
  position: relative;
  z-index: 1;
}

.requirements-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.warning-ultra {
  padding: var(--spacing-md);
  background: rgba(239, 68, 68, 0.1);
  border-left: 4px solid #ef4444;
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-lg);
  color: #fca5a5;
}

.requirements-grid-ultra {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.requirement-box-ultra {
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.requirement-box-ultra h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.requirement-box-ultra ul {
  list-style: none;
}

.requirement-box-ultra li {
  padding: var(--spacing-xs) 0;
  color: #e2e8f0;
  line-height: 1.6;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.additional-info-ultra {
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.additional-info-ultra h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.additional-info-ultra ul {
  list-style: none;
}

.additional-info-ultra li {
  padding: var(--spacing-xs) 0;
  color: #cbd5e1;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Download Grid */
.download-grid-ultra {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.download-item-ultra {
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
  border: 2px solid rgba(16, 185, 129, 0.3);
}

.download-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.download-item-ultra h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.download-item-ultra.disabled {
  opacity: 0.5;
}

.btn-disabled {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-muted);
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.1);
  cursor: not-allowed;
}

/* Materials Grid */
.materials-grid-ultra {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  align-items: stretch;
}

.material-item-ultra {
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 2px solid rgba(16, 185, 129, 0.3);
}

.material-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.material-item-ultra h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  min-height: 3em;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Contact Box */
.contact-box-ultra {
  padding: var(--spacing-2xl);
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  border: 2px solid rgba(16, 185, 129, 0.3);
}

.contact-info-ultra {
  position: relative;
  z-index: 1;
}

.contact-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
}

.contact-info-ultra h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.contact-info-ultra p {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
}

.link-highlight-ultra {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-base);
}

.link-highlight-ultra:hover {
  color: var(--color-primary-light);
  text-decoration: underline;
}

.contact-description {
  color: var(--color-text-muted);
  font-size: 1rem;
  margin-top: var(--spacing-lg);
}

/* Section Divider */
.section-divider-ultra {
  border: none;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(16, 185, 129, 0.5), transparent);
  margin: var(--spacing-3xl) 0;
  position: relative;
}

.section-divider-ultra::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.8);
}

/* ===== FOOTER ===== */
.footer-ultra {
  position: relative;
  background: var(--color-bg-light);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-3xl);
}

.footer-wave {
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.footer-wave svg {
  position: relative;
  display: block;
  width: calc(100% + 1.3px);
  height: 60px;
  color: var(--color-bg-light);
  animation: wave-animation 10s linear infinite;
}

@keyframes wave-animation {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.footer-section p,
.footer-section a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: var(--spacing-xs);
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* ===== COOKIE BANNER ===== */
.cookie-banner-ultra {
  position: fixed;
  bottom: -200px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  max-width: 600px;
  width: calc(100% - 2rem);
  transition: bottom var(--transition-slow);
}

.cookie-banner-ultra.show {
  bottom: var(--spacing-lg);
}

.cookie-morph-bg {
  position: absolute;
  inset: -2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  filter: blur(10px);
  opacity: 0.3;
}

.cookie-content-ultra {
  position: relative;
  background: rgba(17, 24, 39, 0.95);
  backdrop-filter: blur(20px);
  padding: var(--spacing-lg);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  box-shadow: var(--shadow-xl);
}

.cookie-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.cookie-content-ultra p {
  flex: 1;
  margin: 0;
  color: var(--color-text-muted);
}

.btn-cookie-ultra {
  position: relative;
  padding: 0.75rem 1.5rem;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-weight: 600;
  cursor: pointer;
  overflow: hidden;
  transition: all var(--transition-base);
}

.btn-cookie-ultra:hover {
  transform: scale(1.05);
  box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
}

.btn-ripple {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.3), transparent);
  transform: scale(0);
  opacity: 0;
}

.btn-cookie-ultra:active .btn-ripple {
  animation: ripple-effect 0.6s ease-out;
}

@keyframes ripple-effect {
  to {
    transform: scale(2);
    opacity: 0;
  }
}

/* ===== ANIMATIONS ===== */
.fade-in {
  animation: fade-in 0.8s ease-out;
}

.slide-in-left {
  animation: slide-in-left 0.8s ease-out;
}

.slide-in-right {
  animation: slide-in-right 0.8s ease-out;
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slide-in-left {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
  .experiment-content-ultra,
  .about-content-ultra,
  .two-column-ultra {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .requirements-grid-ultra {
    grid-template-columns: 1fr;
  }

  .scroll-indicator-ultra {
    bottom: 6vh;
  }

  .hero-buttons-ultra {
    margin-bottom: var(--spacing-2xl);
  }
}

@media (max-width: 768px) {
  .nav-menu-ultra {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: rgba(17, 24, 39, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-sm);
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--transition-base);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-menu-ultra.active {
    transform: translateY(0);
    opacity: 1;
  }

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

  .hero-buttons-ultra {
    flex-direction: column;
    width: 100%;
    gap: var(--spacing-md);
  }

  .btn-ultra {
    width: 100%;
    justify-content: center;
    padding: 1rem 2rem;
  }

  .scroll-indicator-ultra {
    bottom: 4vh;
    scale: 0.9;
  }

  .experiment-text-ultra .btn-ultra,
  .about-text-ultra .btn-ultra,
  .two-column-ultra .btn-ultra {
    margin-top: var(--spacing-xl);
  }
}

@media (max-width: 480px) {
  .hero-logo-ultra {
    width: 120px;
    height: 120px;
  }

  .section-heading-ultra {
    flex-direction: column;
    align-items: flex-start;
  }

  .scroll-indicator-ultra {
    bottom: 3vh;
    scale: 0.8;
  }

  .btn-ultra {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
  }
}

/* ===== LEGAL PAGES ===== */
.legal-content-ultra {
  max-width: 900px;
  margin: 0 auto;
}

.legal-section-ultra {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  transition: all var(--transition-base);
}

.legal-section-ultra:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(16, 185, 129, 0.3);
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.legal-section-ultra h2 {
  color: var(--color-primary);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, #10b981 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.legal-section-ultra p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

.legal-section-ultra p:last-child {
  margin-bottom: 0;
}

.legal-section-ultra a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all var(--transition-base);
  position: relative;
}

.legal-section-ultra a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transition: width var(--transition-base);
}

.legal-section-ultra a:hover {
  color: var(--color-secondary);
}

.legal-section-ultra a:hover::after {
  width: 100%;
}

.sitemap-ultra {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  max-width: 900px;
  margin: 0 auto;
}

.sitemap-card-ultra {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

.sitemap-card-ultra:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(16, 185, 129, 0.3);
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.sitemap-card-ultra h2 {
  color: var(--color-primary);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, #10b981 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sitemap-list-ultra {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sitemap-list-ultra li {
  margin-bottom: var(--spacing-sm);
}

.sitemap-link-ultra {
  display: flex;
  align-items: center;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
}

.sitemap-link-ultra::before {
  content: "→";
  margin-right: var(--spacing-sm);
  color: var(--color-primary);
  transition: all var(--transition-base);
}

.sitemap-link-ultra:hover {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-primary);
  padding-left: var(--spacing-lg);
}

.sitemap-link-ultra:hover::before {
  transform: translateX(5px);
}

/* ============================================= */
/* ===== REDESIGN: ANFORDERUNGEN / DOWNLOAD ===== */
/* ============================================= */

/* Main container for the requirements section */
.requirements-ultra {
    /* This rule is intentionally left blank to remove the previous box-shadow */
}

/* Red warning box */
.warning-ultra {
    border-radius: var(--radius-lg);
    border-left-width: 5px;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
}

/* Grid for "Minimum" and "Empfohlen" boxes */
.requirements-grid-ultra {
    gap: var(--spacing-xl);
}

/* General style for the content boxes */
.requirement-box-ultra,
.additional-info-ultra {
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

/* Interactive hover effect for the boxes */
.requirement-box-ultra:hover,
.additional-info-ultra:hover {
    transform: translateY(-8px);
    border-color: rgba(16, 185, 129, 0.5);
    box-shadow: var(--shadow-glow);
}

/* Titles within the boxes */
.requirement-box-ultra h4,
.additional-info-ultra h4 {
    color: var(--color-primary);
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* ============================================= */
/* ===== REDESIGN: ANFORDERUNGEN / DOWNLOAD ===== */
/* ============================================= */

/* Red warning box styling (Unchanged) */
.warning-ultra {
    border-radius: var(--radius-lg);
    border-left-width: 5px;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
}

/* Grid for "Minimum" and "Empfohlen" boxes (Unchanged) */
.requirements-grid-ultra {
    gap: var(--spacing-xl);
}

/* General style for all content boxes (Unchanged) */
.requirement-box-ultra,
.additional-info-ultra {
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

/* Interactive hover effect for the boxes (Unchanged) */
.requirement-box-ultra:hover,
.additional-info-ultra:hover {
    transform: translateY(-8px);
    border-color: rgba(16, 185, 129, 0.5);
    box-shadow: var(--shadow-glow);
}

/* Titles within the boxes (Unchanged) */
.requirement-box-ultra h4,
.additional-info-ultra h4 {
    color: var(--color-primary);
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* === NEW / CORRECTED TEXT STYLES START HERE === */

/* Style for list items in "Minimum" & "Empfohlen" */
.requirement-box-ultra ul {
    list-style: none;
    padding: 0;
}

.requirement-box-ultra li {
    display: flex;
    align-items: flex-start; /* Aligns text to the top */
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.requirement-box-ultra li:last-child {
    border-bottom: none;
}

/* Creates the two-column layout for the specs */
.requirement-box-ultra li strong {
    color: var(--color-text-muted);
    font-weight: 600; /* Standard bold */
    width: 140px; /* Gives the labels a fixed width */
    flex-shrink: 0; /* Prevents labels from shrinking */
    padding-right: var(--spacing-md);
}

/* Fix for the text in the "Sonstiges" box */
.additional-info-ultra p {
    padding: var(--spacing-xs) 0;
    line-height: 1.7;
}

/* Box for "Sonstiges" gets margin top (Unchanged) */
.additional-info-ultra {
    margin-top: var(--spacing-xl);
}

.requirements-ultra {
  border: none;
}

/* ========================================================= */
/* ===== FINALES REDESIGN: ALLE KARTEN-SEKTIONEN ===== */
/* ========================================================= */

/* Das Raster, das die Karten enthält */
.download-grid-ultra,
.materials-grid-ultra,
.credits-grid-ultra { /* Hinzugefügt */
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

/* Der neue, moderne Stil für jede einzelne Karte */
.download-item-ultra,
.material-item-ultra,
.credit-item-ultra { /* Hinzugefügt */
    position: relative;
    display: flex;
    flex-direction: column;
    text-align: center;
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    overflow: hidden;
}

/* Titel in der Karte */
.download-item-ultra h4,
.material-item-ultra h4,
.credit-item-ultra h3 { /* Angepasst */
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    min-height: 2em;
}
.credit-item-ultra p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}


/* Icon in der Karte */
.download-item-ultra .download-icon,
.material-item-ultra .material-icon,
.credit-item-ultra .credit-icon { /* Hinzugefügt */
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    transition: transform var(--transition-base);
}

/* Schiebt den Button immer an den unteren Rand der Karte */
.download-item-ultra .btn-ultra,
.material-item-ultra .btn-ultra {
    margin-top: auto;
}
/* Pusht bei den Credit-Karten den Namen nach unten */
.credit-item-ultra p {
    margin-top: auto;
}


/* --- Der "Wow"-Effekt beim Darüberfahren mit der Maus --- */

.download-item-ultra:hover,
.material-item-ultra:hover,
.credit-item-ultra:hover { /* Hinzugefügt */
    transform: translateY(-8px);
    border-color: rgba(16, 185, 129, 0.3);
}

.download-item-ultra:hover .download-icon,
.material-item-ultra:hover .material-icon,
.credit-item-ultra:hover .credit-icon { /* Hinzugefügt */
    transform: scale(1.1);
    color: var(--color-primary);
}

/* Der leuchtende, animierte Rand */
.download-item-ultra .card-border-glow,
.material-item-ultra .card-border-glow,
.credit-item-ultra .card-border-glow { /* Hinzugefügt */
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, #10b981, #3b82f6, #8b5cf6);
    border-radius: var(--radius-xl);
    opacity: 0;
    transition: opacity var(--transition-slow);
    z-index: -1;
    filter: blur(10px);
    animation: rotate-gradient 8s linear infinite;
}

.download-item-ultra:hover .card-border-glow,
.material-item-ultra:hover .card-border-glow,
.credit-item-ultra:hover .card-border-glow { /* Hinzugefügt */
    opacity: 0.6;
}

/* Keyframe-Animation für den rotierenden Farbverlauf des Randes */
@keyframes rotate-gradient {
    0% { filter: hue-rotate(0deg); }
    100% { filter: hue-rotate(360deg); }
}

/* ==================================== */
/* ===== REDESIGN: MINDMAP-KARTE ===== */
/* ==================================== */

/* The main container for the mind map card */
.mindmap-preview-card {
    position: relative; /* Needed for the glow effect */
    background: var(--color-surface); /* Lighter background to stand out */
    border: 1px solid rgba(255, 255, 255, 0.1); /* Subtle border */
    border-radius: var(--radius-2xl); /* Generous rounded corners */
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    overflow: hidden; /* Important for the glow effect */
}

/* Add the interactive hover effect */
.mindmap-preview-card:hover {
    transform: translateY(-8px);
    border-color: rgba(16, 185, 129, 0.3);
    box-shadow: var(--shadow-glow);
}

/* Style the title above the mind map */
.mindmap-preview-card .section-title-ultra {
    font-size: clamp(1.75rem, 3vw, 2.25rem); /* Slightly smaller title */
}

/* Style the subtitle */
.mindmap-preview-card .lead-ultra {
    margin-bottom: var(--spacing-xl);
}

/* Make the image container itself rounded */
.mindmap-container {
    border-radius: var(--radius-lg); /* Rounded corners for the image */
    overflow: hidden;
}

/* Improve the overlay that appears on hover */
.mindmap-overlay {
    background: rgba(10, 15, 26, 0.8); /* Darker, more professional overlay */
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.mindmap-zoom-icon {
    font-size: 3.5rem;
    transition: transform var(--transition-base);
}

.mindmap-text {
    font-weight: 600;
    font-size: 1.25rem;
}

.mindmap-link:hover .mindmap-zoom-icon {
    transform: scale(1.15); /* Adds a zoom effect to the icon */
}

/* Add the animated, glowing border on hover */
.mindmap-preview-card .card-border-glow {
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, #10b981, #3b82f6, #8b5cf6);
    border-radius: var(--radius-2xl); /* Must match the card's border-radius */
    opacity: 0;
    transition: opacity var(--transition-slow);
    z-index: -1;
    filter: blur(10px);
    animation: rotate-gradient 8s linear infinite;
}

.mindmap-preview-card:hover .card-border-glow {
    opacity: 0.6;
}

/* ==================================== */
/* ===== REDESIGN: KONTAKT-KARTE ===== */
/* ==================================== */

/* Die Haupt-Kontakt-Karte */
.contact-box-ultra {
    position: relative;
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-3xl); /* Etwas mehr Innenabstand */
    transition: all var(--transition-base);
    overflow: hidden;
    margin-top: var(--spacing-2xl);
}

/* Interaktiver Hover-Effekt */
.contact-box-ultra:hover {
    transform: translateY(-8px);
    border-color: rgba(16, 185, 129, 0.3);
    box-shadow: var(--shadow-glow);
}

/* Icon-Styling */
.contact-icon {
    transition: transform var(--transition-base);
}
.contact-box-ultra:hover .contact-icon {
    transform: scale(1.1);
}

/* Titel-Styling */
.contact-info-ultra h3 {
    font-size: 1.75rem;
}

/* E-Mail Link Styling */
.contact-info-ultra p {
    font-size: 1.25rem;
}

/* Beschreibungstext am Ende */
.contact-description {
    margin-top: var(--spacing-lg);
    font-size: 1rem;
    color: var(--color-text-muted);
}

/* Der leuchtende, animierte Rand */
.contact-box-ultra .card-border-glow {
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, #10b981, #3b82f6, #8b5cf6);
    border-radius: var(--radius-2xl);
    opacity: 0;
    transition: opacity var(--transition-slow);
    z-index: 0;
    filter: blur(10px);
    animation: rotate-gradient 8s linear infinite;
}

.contact-box-ultra:hover .card-border-glow {
    opacity: 0.6;
}



/* =================================================== */
/* ===== PROFESSIONELLE VERBESSERUNGEN (FINISHING) ===== */
/* =================================================== */

/* --- 1. Mikro-Interaktionen & Hover-Effekte --- */
a {
    transition: color var(--transition-base), transform var(--transition-base);
}

.footer-section a:hover,
.link-highlight-ultra:hover {
    transform: translateY(-2px);
    text-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

/* --- 2. Typografie & Lesbarkeit --- */
.ultra-text {
    font-size: 1.125rem; /* 18px */
    line-height: 1.8;
    color: var(--color-text-muted);
    max-width: 720px;
}

.ultra-text strong {
    color: var(--color-text);
    font-weight: 600;
}

/* --- 3. Sanfte Lade-Animationen --- */
/* Diese Klasse zu den Sektionen im HTML hinzufügen, die animiert werden sollen */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
/* Diese Klasse wird per JavaScript hinzugefügt, wenn das Element sichtbar wird */
.is-visible {
    opacity: 1;
    transform: translateY(0);
}


/* --- 4. Verfeinerter Farbverlauf für Titel --- */
.page-hero-title.gradient-text {
    /* Verwendet den neuen Farbverlauf, mit dem alten als Fallback */
    background: var(--gradient-subtle, var(--gradient-primary));
    -webkit-background-clip: text;
    background-clip: text;
}

/* --- 1. Interaktiver Cursor --- */

/* Standard-Styling für den Cursor (aus Ihrem Skript) */
.cursor-glow {
    position: fixed;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.3) 0%, transparent 60%);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease, background 0.3s ease;
}

/* Vergrößerter Zustand, wenn der Cursor über Links oder Buttons ist */
body:has(a:hover, button:hover, .magnetic-btn:hover) .cursor-glow {
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.4) 0%, transparent 60%); /* Blauer Akzent */
}
/* ======================================================= */
/* ===== FINALER FOKUS-EFFEKT (OHNE TRANSPARENZ) ===== */
/* ======================================================= */

/* Bereitet alle Karten auf die Transformation vor */
.download-item-ultra,
.material-item-ultra,
.credit-item-ultra {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Wenn man über das Raster fährt, werden alle Karten leicht verkleinert */
.download-grid-ultra:hover > .download-item-ultra,
.materials-grid-ultra:hover > .material-item-ultra,
.credits-grid-ultra:hover > .credit-item-ultra {
    transform: scale(0.98);
}

/* Die spezifische Karte, über der sich die Maus befindet, wird stark vergrößert */
.download-grid-ultra > .download-item-ultra:hover,
.materials-grid-ultra > .material-item-ultra:hover,
.credits-grid-ultra > .credit-item-ultra:hover {
    transform: scale(1.05) translateY(-8px);
}


/* Korrektur für den Haupt-Button auf der Startseite */

.btn-ultra-primary:hover {
  transform: translateY(-4px) scale(1.05); /* Behält den Anhebe-Effekt bei */
  filter: brightness(1.15); /* Erhöht die Helligkeit leicht für besseres Feedback */
  animation: none; /* Deaktiviert die fehlerhafte "pulse-glow"-Animation */
}


/* ================================== */
/* ===== DESIGN: 404 ERROR PAGE ===== */
/* ================================== */

.error-page-ultra {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-3xl) 0;
    min-height: 60vh;
    justify-content: center;
}

.error-code-ultra {
    font-family: var(--font-display);
    font-size: clamp(6rem, 25vw, 12rem);
    font-weight: 900;
    line-height: 1;
    position: relative;
    color: var(--color-surface); /* Macht den Text fast unsichtbar */
    -webkit-text-stroke: 2px var(--color-primary); /* Rand in Akzentfarbe */
    margin-bottom: var(--spacing-md);
    animation: flicker 3s ease-in-out infinite;
}

/* Glitch-Effekt für die 404-Zahl */
.error-code-ultra::before,
.error-code-ultra::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.error-code-ultra::before {
    left: 2px;
    -webkit-text-stroke: 2px var(--color-secondary);
    animation: glitch 3s cubic-bezier(0.25, 0.46, 0.45, 0.94) both infinite;
}

.error-code-ultra::after {
    left: -2px;
    -webkit-text-stroke: 2px var(--color-accent);
    animation: glitch 3s cubic-bezier(0.25, 0.46, 0.45, 0.94) reverse both infinite;
}

.error-title-ultra {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.error-description-ultra {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 500px;
    margin-bottom: var(--spacing-xl);
}

/* Animationen für den Glitch-Effekt */
@keyframes glitch {
    0% { clip-path: inset(10% 0 80% 0); }
    10% { clip-path: inset(50% 0 25% 0); }
    20% { clip-path: inset(85% 0 5% 0); }
    30% { clip-path: inset(30% 0 60% 0); }
    40% { clip-path: inset(5% 0 90% 0); }
    50% { clip-path: inset(70% 0 10% 0); }
    60% { clip-path: inset(90% 0 2% 0); }
    70% { clip-path: inset(45% 0 45% 0); }
    80% { clip-path: inset(15% 0 75% 0); }
    90% { clip-path: inset(75% 0 15% 0); }
    100% { clip-path: inset(50% 0 50% 0); }
}

@keyframes flicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* ======================================================= */
/* ===== FINAL POLISHED BUTTON GROUP (NO ARROW) ===== */
/* ======================================================= */

/* The container for the two buttons */
.card-button-group {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: center; /* Zentriert die Buttons */
    gap: var(--spacing-sm);
}

/* The main download button (now without the icon) */
.card-button-group .btn-ultra-accent {
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.5rem; /* Adjusted padding for text-only */
    font-size: 1rem;
    font-weight: 600;
}

/* We remove the icon's CSS so it no longer appears */
.card-button-group .btn-ultra-accent .btn-icon {
    display: none;
}


/* The round, icon-only "view" button */
.btn-ultra-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    padding: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-base);
}

/* The icon inside the "view" button */
.btn-ultra-icon .btn-icon {
    font-size: 1.5rem;
    margin: 0;
}

/* Hover effect for the "view" button */
.btn-ultra-icon:hover {
    background: rgba(16, 185, 129, 0.2);
    border-color: var(--color-primary);
    transform: scale(1.1) rotate(10deg);
}