/* ==========================================================================
   Mobile-First Responsive CSS für Bastelglück by Reni
   ========================================================================== */

/* ==========================================================================
   CSS Custom Properties & Reset (Mobile-First)
   ========================================================================== */

:root {
  /* Farbpalette */
  --primary-turquoise: #40e0d0;
  --primary-pink: #ff69b4;
  --accent-turquoise: #00ced1;
  --accent-pink: #ff1493;
  
  /* Textfarben */
  --text-primary: #1a1a1a;
  --text-secondary: #666;
  --text-light: #999;
  --text-white: #ffffff;
  
  /* Hintergrundfarben */
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-glass: rgba(255, 255, 255, 0.95);
  --bg-glass-dark: rgba(255, 255, 255, 0.1);
  
  /* Schatten (reduziert für mobile) */
  --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-heavy: 0 8px 20px rgba(0, 0, 0, 0.2);
  --shadow-color: 0 4px 12px rgba(255, 20, 147, 0.3);
  
  /* Border Radius (Mobile-optimiert) */
  --border-radius: 12px;
  --border-radius-large: 16px;
  --border-radius-small: 6px;
  
  /* Mobile-First Spacing */
  --spacing-xs: 0.25rem;    /* 4px */
  --spacing-sm: 0.5rem;     /* 8px */
  --spacing-md: 1rem;       /* 16px */
  --spacing-lg: 1.5rem;     /* 24px */
  --spacing-xl: 2rem;       /* 32px */
  --spacing-2xl: 2.5rem;    /* 40px */
  --spacing-3xl: 3rem;      /* 48px */
  
  /* Typography (Mobile-First) */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Mobile Font Sizes (mindestens 16px für Fließtext) */
  --font-size-xs: 0.875rem;    /* 14px */
  --font-size-sm: 1rem;        /* 16px - Minimum für mobile Lesbarkeit */
  --font-size-base: 1.125rem;  /* 18px */
  --font-size-lg: 1.25rem;     /* 20px */
  --font-size-xl: 1.5rem;      /* 24px */
  --font-size-2xl: 2rem;       /* 32px */
  --font-size-3xl: 2.5rem;     /* 40px */
  
  /* Touch-Target Sizes (mindestens 44px) */
  --touch-target-min: 44px;
  --touch-target-comfortable: 48px;
  --touch-target-large: 56px;
  
  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* CSS Reset mit Mobile-First Approach */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* Verbesserte Touch-Gesten */
  touch-action: manipulation;
}

body {
  margin: 0;
  font-family: var(--font-family);
  font-weight: var(--font-weight-normal);
  font-size: var(--font-size-sm); /* 16px minimum für mobile Lesbarkeit */
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--primary-turquoise) 0%, var(--primary-pink) 100%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  /* Verhindert Zoom bei Doppeltipp */
  -webkit-text-size-adjust: 100%;
}

/* Flexible Bilder (max-width: 100%) */
img, 
video, 
iframe,
embed,
object {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: var(--spacing-sm);
  background: var(--accent-pink);
  color: white;
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  border-radius: var(--border-radius-small);
  z-index: var(--z-tooltip);
  font-weight: var(--font-weight-medium);
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
}

.skip-link:focus {
  top: var(--spacing-sm);
}

/* Mobile-First Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md); /* 16px padding auf mobile */
}

/* ==========================================================================
   Header & Navigation (Mobile-First)
   ========================================================================== */

header {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--bg-glass-dark);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: var(--z-fixed);
  transition: all var(--transition-normal);
  min-height: 60px; /* Mindesthöhe für Touch-Targets */
}

header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-medium);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 60px;
  padding: var(--spacing-sm) 0;
}

.logo {
  font-size: var(--font-size-lg); /* 20px auf mobile */
  font-weight: var(--font-weight-bold);
  color: var(--accent-pink);
  letter-spacing: -0.02em;
  /* Touch-Target für Logo */
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
}

/* Mobile Navigation (standardmäßig versteckt) */
.nav-links {
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  flex-direction: column;
  padding: var(--spacing-xl);
  gap: var(--spacing-lg);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  list-style: none;
  margin: 0;
  /* Verhindert Scrollen im Hintergrund */
  overscroll-behavior: contain;
}

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

.nav-links a {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base); /* 18px für bessere mobile Lesbarkeit */
  transition: all var(--transition-normal);
  position: relative;
  padding: var(--spacing-md) 0;
  /* Touch-Target Größe */
  min-height: var(--touch-target-comfortable);
  display: flex;
  align-items: center;
  border-radius: var(--border-radius-small);
  /* Touch-Feedback */
  -webkit-tap-highlight-color: rgba(255, 20, 147, 0.2);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: var(--spacing-sm);
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-pink), var(--accent-turquoise));
  transition: width var(--transition-normal);
}

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

.nav-links a:hover,
.nav-links a:focus,
.nav-links a:active {
  color: var(--accent-pink);
  outline: none;
  background: rgba(255, 20, 147, 0.05);
  transform: translateX(var(--spacing-sm));
}

/* Touch-freundlicher Hamburger Button */
.mobile-menu-button {
  display: flex;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-small);
  transition: background-color var(--transition-fast);
  /* Touch-Target */
  min-width: var(--touch-target-comfortable);
  min-height: var(--touch-target-comfortable);
  align-items: center;
  justify-content: center;
  /* Touch-Feedback */
  -webkit-tap-highlight-color: rgba(255, 20, 147, 0.2);
}

.mobile-menu-button:hover,
.mobile-menu-button:focus,
.mobile-menu-button:active {
  background-color: var(--bg-glass-dark);
  outline: none;
}

.hamburger-icon {
  display: flex;
  flex-direction: column;
  width: 24px;
  height: 18px;
  position: relative;
}

.hamburger-icon span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all var(--transition-normal);
  margin: 2px 0;
}

.hamburger-icon span:nth-child(1) {
  transform-origin: 0% 0%;
}

.hamburger-icon span:nth-child(2) {
  transform-origin: 0% 50%;
}

.hamburger-icon span:nth-child(3) {
  transform-origin: 0% 100%;
}

.mobile-menu-button[aria-expanded="true"] .hamburger-icon span:nth-child(1) {
  transform: rotate(45deg);
}

.mobile-menu-button[aria-expanded="true"] .hamburger-icon span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-button[aria-expanded="true"] .hamburger-icon span:nth-child(3) {
  transform: rotate(-45deg);
}

/* ==========================================================================
   Main Content (Mobile-First)
   ========================================================================== */

main {
  margin-top: 60px; /* Header-Höhe */
}

/* ==========================================================================
   Hero Section (Mobile-First)
   ========================================================================== */

.hero {
  text-align: center;
  padding: var(--spacing-3xl) 0; /* 48px auf mobile */
  color: var(--text-white);
  position: relative;
  overflow: hidden;
  min-height: 60vh;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(64, 224, 208, 0.1), rgba(255, 105, 180, 0.1));
  z-index: -1;
}

.hero-title {
  font-size: clamp(2rem, 8vw, 4rem); /* Responsive von 32px bis 64px */
  margin-bottom: var(--spacing-lg);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.greeting {
  display: block;
  font-size: 0.6em;
  font-weight: var(--font-weight-normal);
  opacity: 0.9;
  animation: fadeInUp 0.8s ease-out;
}

.name {
  display: block;
  background: linear-gradient(45deg, var(--accent-pink), var(--accent-turquoise));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.emoji {
  display: inline-block;
  font-size: 0.8em;
  animation: wave 2s ease-in-out infinite 1s, fadeInUp 0.8s ease-out 0.4s both;
}

.hero-subtitle {
  font-size: clamp(1rem, 4vw, 1.4rem); /* Responsive von 16px bis 22px */
  margin-bottom: var(--spacing-lg);
  opacity: 0.95;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  font-weight: var(--font-weight-normal);
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-description {
  font-size: var(--font-size-sm); /* 16px minimum */
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s ease-out 0.8s both;
}

/* Touch-freundlicher CTA Button */
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  background: linear-gradient(45deg, var(--accent-pink), var(--accent-turquoise));
  color: var(--text-white);
  padding: var(--spacing-md) var(--spacing-xl);
  text-decoration: none;
  border-radius: 50px;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base); /* 18px */
  transition: all var(--transition-normal);
  box-shadow: 0 4px 15px rgba(255, 20, 147, 0.4);
  margin-top: var(--spacing-md);
  animation: fadeInUp 0.8s ease-out 1s both;
  position: relative;
  overflow: hidden;
  /* Touch-Target */
  min-height: var(--touch-target-large);
  min-width: 200px;
  /* Touch-Feedback */
  -webkit-tap-highlight-color: transparent;
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-slow);
}

.cta-button:hover::before,
.cta-button:active::before {
  left: 100%;
}

.cta-button:hover,
.cta-button:focus,
.cta-button:active {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 20, 147, 0.5);
  outline: none;
}

.cta-icon {
  font-size: 1.2em;
  animation: pulse 2s ease-in-out infinite;
}

/* ==========================================================================
   Section Cards (Mobile-First)
   ========================================================================== */

.section-card {
  background: var(--bg-white);
  padding: var(--spacing-3xl) 0;
  margin: var(--spacing-xl) 0;
  border-radius: var(--border-radius-large);
  box-shadow: var(--shadow-medium);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

/* ==========================================================================
   About Section (Mobile-First)
   ========================================================================== */

.about-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
  align-items: center;
  text-align: center;
}

.profile-container {
  position: relative;
}

.profile-image {
  width: 200px; /* Kleinere Größe für mobile */
  height: 200px;
  border-radius: 50%;
  background: linear-gradient(45deg, var(--primary-turquoise), var(--primary-pink));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  box-shadow: var(--shadow-heavy);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-normal);
  padding: 4px;
}

.profile-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  position: relative;
  z-index: 2;
  transition: transform var(--transition-normal);
}

.profile-image:hover,
.profile-image:active {
  transform: scale(1.05);
}

.profile-image:hover img,
.profile-image:active img {
  transform: scale(1.1);
}

.profile-image::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: shimmer 3s infinite;
  z-index: 3;
}

.profile-initial {
  display: none;
}

.about-text h2 {
  font-size: clamp(1.5rem, 6vw, 2.5rem); /* Responsive von 24px bis 40px */
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  position: relative;
}

.about-text h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-pink), var(--accent-turquoise));
  border-radius: 2px;
}

.about-text p {
  font-size: var(--font-size-sm); /* 16px minimum */
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 600px;
}

/* Touch-freundlicher About CTA */
.about-cta {
  background: linear-gradient(45deg, var(--accent-pink), var(--accent-turquoise));
  color: var(--text-white);
  border: none;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: 50px;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
  /* Touch-Target */
  min-height: var(--touch-target-comfortable);
  min-width: 180px;
  justify-content: center;
  /* Touch-Feedback */
  -webkit-tap-highlight-color: transparent;
}

.about-cta:hover,
.about-cta:focus,
.about-cta:active {
  transform: translateY(-2px);
  box-shadow: var(--shadow-color);
  outline: none;
}

.arrow {
  transition: transform var(--transition-normal);
}

.about-cta:hover .arrow,
.about-cta:active .arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   Portfolio Section (Mobile-First) - Erweitert für DIY-Features
   ========================================================================== */

.portfolio-section {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, rgba(64, 224, 208, 0.05), rgba(255, 105, 180, 0.05));
  margin: var(--spacing-xl) 0;
  border-radius: var(--border-radius-large);
}

.portfolio-section h2 {
  text-align: center;
  font-size: clamp(1.5rem, 6vw, 2.5rem);
  margin-bottom: var(--spacing-2xl);
  color: var(--text-primary);
  font-weight: var(--font-weight-bold);
}

/* Touch-freundliche Filter Buttons */
.portfolio-filter {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bg-white);
  border: 2px solid transparent;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  /* Touch-Target */
  min-height: var(--touch-target-min);
  min-width: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  /* Touch-Feedback */
  -webkit-tap-highlight-color: transparent;
}

.filter-btn.active,
.filter-btn:hover,
.filter-btn:focus,
.filter-btn:active {
  background: linear-gradient(45deg, var(--accent-pink), var(--accent-turquoise));
  color: var(--text-white);
  outline: none;
  transform: translateY(-2px);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr; /* Single column auf mobile */
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

/* Erweiterte Portfolio-Cards */
.portfolio-item {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-light);
  transition: all var(--transition-normal);
  cursor: pointer;
  opacity: 0;
  transform: translateY(30px);
  position: relative;
  /* Touch-Feedback */
  -webkit-tap-highlight-color: rgba(255, 20, 147, 0.1);
}

.portfolio-item.animate-in {
  opacity: 1;
  transform: translateY(0);
  animation: fadeInUp 0.6s ease-out forwards;
}

.portfolio-item:hover,
.portfolio-item:active {
  transform: translateY(-4px);
  box-shadow: var(--shadow-heavy);
}

.portfolio-item.hidden {
  display: none;
}

.portfolio-image {
  width: 100%;
  height: 220px;
  background: linear-gradient(45deg, var(--primary-turquoise), var(--primary-pink));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--text-white);
  position: relative;
  overflow: hidden;
}

/* Featured Badge */
.featured-badge {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  background: linear-gradient(45deg, #ff6b35, #f7931e);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-small);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  z-index: 2;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Gallery Preview */
.project-gallery-preview {
  position: absolute;
  bottom: var(--spacing-sm);
  right: var(--spacing-sm);
  display: flex;
  gap: 2px;
  opacity: 0.8;
}

.gallery-thumb {
  width: 20px;
  height: 20px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.more-images {
  width: 20px;
  height: 20px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: var(--font-weight-semibold);
}

.portfolio-content {
  padding: var(--spacing-lg);
}

/* Erweiterte Header-Sektion */
.portfolio-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-sm);
  gap: var(--spacing-sm);
}

.portfolio-header h3 {
  font-size: var(--font-size-lg);
  color: var(--text-primary);
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
  margin-bottom: 0;
  flex: 1;
}

.project-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--spacing-xs);
  flex-shrink: 0;
}

/* Schwierigkeitsgrad-Anzeige */
.difficulty-indicator {
  font-size: var(--font-size-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-small);
  font-weight: var(--font-weight-medium);
  color: white;
  white-space: nowrap;
}

.difficulty-easy {
  background: linear-gradient(45deg, #4caf50, #8bc34a);
}

.difficulty-medium {
  background: linear-gradient(45deg, #ff9800, #ffc107);
}

.difficulty-hard {
  background: linear-gradient(45deg, #f44336, #e91e63);
}

.time-indicator {
  font-size: var(--font-size-xs);
  color: var(--text-light);
  white-space: nowrap;
}

.project-description {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
  font-size: var(--font-size-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Projekt-Details Grid */
.project-details {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-xs);
  color: var(--text-light);
}

.material-count,
.steps-count,
.rating-display {
  text-align: center;
  padding: var(--spacing-xs);
  background: var(--bg-light);
  border-radius: var(--border-radius-small);
  font-weight: var(--font-weight-medium);
}

.portfolio-tags {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-md);
}

.portfolio-tag {
  background: var(--bg-light);
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-small);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

/* Portfolio Actions */
.portfolio-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.view-project-btn {
  flex: 1;
  background: linear-gradient(45deg, var(--accent-pink), var(--accent-turquoise));
  color: white;
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-small);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  min-height: var(--touch-target-min);
}

.view-project-btn:hover,
.view-project-btn:focus,
.view-project-btn:active {
  transform: translateY(-1px);
  box-shadow: var(--shadow-color);
  outline: none;
}

/* ==========================================================================
   Project Modal Styles (Umfassend erweitert)
   ========================================================================== */

.project-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.project-modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-content {
  position: relative;
  background: var(--bg-white);
  margin: var(--spacing-lg);
  border-radius: var(--border-radius-large);
  max-width: 1000px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-heavy);
  transform: scale(0.9);
  transition: transform var(--transition-normal);
  /* Zentrieren */
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  width: calc(100% - var(--spacing-xl));
}

.project-modal.active .modal-content {
  transform: translate(-50%, -50%) scale(1);
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: rgba(0, 0, 0, 0.1);
  border: none;
  width: var(--touch-target-min);
  height: var(--touch-target-min);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  z-index: 10;
  color: var(--text-primary);
}

.modal-close:hover,
.modal-close:focus {
  background: rgba(0, 0, 0, 0.2);
  transform: scale(1.1);
  outline: none;
}

/* Modal Header */
.modal-header {
  padding: var(--spacing-2xl);
  border-bottom: 1px solid var(--bg-light);
}

.project-hero {
  display: flex;
  gap: var(--spacing-xl);
  align-items: flex-start;
}

.project-main-image {
  position: relative;
  flex-shrink: 0;
}

.main-emoji {
  font-size: 5rem;
  display: block;
  width: 150px;
  height: 150px;
  background: linear-gradient(45deg, var(--primary-turquoise), var(--primary-pink));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: var(--shadow-medium);
}

.project-info {
  flex: 1;
  min-width: 0;
}

.project-info h1 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
}

.project-full-description {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

.project-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-md);
}

.stat {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--bg-light);
  border-radius: var(--border-radius);
}

.stat-icon {
  display: block;
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xs);
}

.stat-value {
  display: block;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--accent-pink);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: var(--font-size-xs);
  color: var(--text-light);
  font-weight: var(--font-weight-medium);
}

/* Modal Navigation */
.modal-nav {
  display: flex;
  background: var(--bg-light);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.nav-tab {
  background: none;
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  transition: all var(--transition-normal);
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  min-height: var(--touch-target-comfortable);
}

.nav-tab.active,
.nav-tab:hover,
.nav-tab:focus {
  color: var(--accent-pink);
  background: var(--bg-white);
  border-bottom-color: var(--accent-pink);
  outline: none;
}

/* Modal Body */
.modal-body {
  padding: var(--spacing-2xl);
  min-height: 400px;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeInUp 0.3s ease-out;
}

/* Overview Tab */
.overview-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

.difficulty-card,
.tools-card,
.tags-card {
  background: var(--bg-light);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
}

.difficulty-card h3,
.tools-card h3,
.tags-card h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.difficulty-display {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.difficulty-stars {
  font-size: var(--font-size-xl);
  color: #ffd700;
}

.difficulty-text {
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  text-transform: capitalize;
}

.difficulty-details p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.tools-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tool-item {
  background: var(--bg-white);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-small);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.modal-tag {
  background: var(--bg-white);
  color: var(--text-secondary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-small);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

/* Materials Tab */
.materials-section h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
}

.materials-grid {
  display: grid;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.material-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--bg-light);
  border-radius: var(--border-radius);
  border-left: 4px solid var(--accent-turquoise);
}

.material-info {
  flex: 1;
}

.material-name {
  display: block;
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.material-amount {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.material-price {
  font-weight: var(--font-weight-semibold);
  color: var(--accent-pink);
  font-size: var(--font-size-lg);
}

.materials-total {
  text-align: center;
  padding: var(--spacing-lg);
  background: linear-gradient(45deg, var(--accent-pink), var(--accent-turquoise));
  color: white;
  border-radius: var(--border-radius);
  font-size: var(--font-size-lg);
}

/* Steps Tab */
.steps-section h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.step-item {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--bg-light);
  border-radius: var(--border-radius);
  position: relative;
}

.step-number {
  width: 40px;
  height: 40px;
  background: linear-gradient(45deg, var(--accent-pink), var(--accent-turquoise));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.step-content {
  flex: 1;
}

.step-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  gap: var(--spacing-md);
}

.step-header h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin: 0;
}

.step-time {
  font-size: var(--font-size-sm);
  color: var(--text-light);
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
}

.step-visual {
  margin-bottom: var(--spacing-md);
}

.step-emoji {
  font-size: 2rem;
  padding: var(--spacing-sm);
  background: var(--bg-white);
  border-radius: var(--border-radius-small);
  display: inline-block;
}

.step-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.step-tip {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: rgba(255, 193, 7, 0.1);
  border-left: 4px solid #ffc107;
  border-radius: var(--border-radius-small);
}

.tip-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.tip-text {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-style: italic;
}

/* Gallery Tab */
.gallery-section h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-md);
}

.gallery-item {
  background: var(--bg-light);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
}

.gallery-emoji {
  font-size: 2.5rem;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.gallery-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: var(--font-weight-medium);
}

/* Modal Footer */
.modal-footer {
  padding: var(--spacing-xl) var(--spacing-2xl);
  border-top: 1px solid var(--bg-light);
  background: var(--bg-light);
  border-radius: 0 0 var(--border-radius-large) var(--border-radius-large);
}

.footer-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

.bookmark-btn,
.share-btn,
.start-project-btn {
  background: var(--bg-white);
  border: 2px solid var(--accent-turquoise);
  color: var(--accent-turquoise);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  min-height: var(--touch-target-comfortable);
  flex: 1;
  justify-content: center;
}

.start-project-btn {
  background: linear-gradient(45deg, var(--accent-pink), var(--accent-turquoise));
  color: white;
  border-color: transparent;
}

.bookmark-btn:hover,
.share-btn:hover,
.bookmark-btn:focus,
.share-btn:focus {
  background: var(--accent-turquoise);
  color: white;
  outline: none;
}

.start-project-btn:hover,
.start-project-btn:focus {
  transform: translateY(-2px);
  box-shadow: var(--shadow-color);
  outline: none;
}

/* Notification System */
.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--accent-turquoise);
  color: white;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-heavy);
  z-index: var(--z-tooltip);
  transform: translateX(400px);
  opacity: 0;
  transition: all var(--transition-normal);
  font-weight: var(--font-weight-medium);
}

.notification.show {
  transform: translateX(0);
  opacity: 1;
}

/* ==========================================================================
   Skills Section (Mobile-First)
   ========================================================================== */

.skills-section {
  background: linear-gradient(135deg, rgba(64, 224, 208, 0.05), rgba(255, 105, 180, 0.05));
  padding: var(--spacing-3xl) 0;
  margin: var(--spacing-xl) 0;
  border-radius: var(--border-radius-large);
}

.skills-section h2 {
  text-align: center;
  font-size: clamp(1.5rem, 6vw, 2.5rem);
  margin-bottom: var(--spacing-2xl);
  color: var(--text-primary);
  font-weight: var(--font-weight-bold);
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr; /* Single column auf mobile */
  gap: var(--spacing-lg);
}

.skill-card {
  background: var(--bg-white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: var(--shadow-light);
  transition: all var(--transition-normal);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  /* Touch-Feedback */
  -webkit-tap-highlight-color: rgba(255, 20, 147, 0.1);
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-turquoise), var(--primary-pink));
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.skill-card:hover::before,
.skill-card:focus::before,
.skill-card:active::before {
  transform: scaleX(1);
}

.skill-card:hover,
.skill-card:focus,
.skill-card:active {
  transform: translateY(-4px);
  box-shadow: var(--shadow-heavy);
  outline: none;
}

.skill-icon {
  font-size: 2.5rem; /* Etwas kleiner auf mobile */
  margin-bottom: var(--spacing-lg);
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
  transition: transform var(--transition-normal);
}

.skill-card:hover .skill-icon,
.skill-card:active .skill-icon {
  transform: scale(1.1) rotate(5deg);
}

.skill-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
  font-weight: var(--font-weight-semibold);
}

.skill-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
}

.skill-stats {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.stat-number {
  font-size: 1.75rem; /* Etwas kleiner auf mobile */
  font-weight: var(--font-weight-bold);
  color: var(--accent-pink);
  font-feature-settings: 'tnum';
}

.stat-label {
  font-size: var(--font-size-xs);
  color: var(--text-light);
  font-weight: var(--font-weight-medium);
}

/* ==========================================================================
   Shop Section (Mobile-First)
   ========================================================================== */

.shop-section {
  background: linear-gradient(135deg, var(--accent-pink), var(--accent-turquoise));
  padding: var(--spacing-3xl) 0;
  margin: var(--spacing-xl) 0;
  border-radius: var(--border-radius-large);
  text-align: center;
  color: var(--text-white);
  position: relative;
  overflow: hidden;
}

.shop-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.shop-section h2 {
  font-size: clamp(1.5rem, 6vw, 2.5rem);
  margin-bottom: var(--spacing-lg);
  font-weight: var(--font-weight-bold);
  position: relative;
  z-index: 1;
}

.shop-section > p {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

.shop-features {
  display: flex;
  flex-direction: column; /* Stack vertical auf mobile */
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  position: relative;
  z-index: 1;
}

.feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: var(--font-weight-medium);
  background: rgba(255, 255, 255, 0.1);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 50px;
  backdrop-filter: blur(10px);
  font-size: var(--font-size-sm);
  /* Touch-Target */
  min-height: var(--touch-target-min);
}

.feature-icon {
  font-size: 1.2em;
}

/* Touch-freundlicher Shop Button */
.shop-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  background: var(--bg-white);
  color: var(--accent-pink);
  padding: var(--spacing-md) var(--spacing-xl);
  text-decoration: none;
  border-radius: 50px;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
  transition: all var(--transition-normal);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  position: relative;
  z-index: 1;
  overflow: hidden;
  /* Touch-Target */
  min-height: var(--touch-target-large);
  min-width: 200px;
  /* Touch-Feedback */
  -webkit-tap-highlight-color: transparent;
}

.shop-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 20, 147, 0.1), transparent);
  transition: left var(--transition-slow);
}

.shop-button:hover::before,
.shop-button:active::before {
  left: 100%;
}

.shop-button:hover,
.shop-button:focus,
.shop-button:active {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  outline: none;
}

.external-icon {
  font-size: 0.9em;
  opacity: 0.7;
}

/* ==========================================================================
   Footer (Mobile-First)
   ========================================================================== */

footer {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--spacing-2xl) 0;
  text-align: center;
  margin-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

.footer-info h3 {
  color: var(--accent-pink);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.footer-info p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xs);
}

/* Touch-freundliche Social Links */
.social-links {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-target-comfortable); /* 48px Touch-Target */
  height: var(--touch-target-comfortable);
  background: linear-gradient(45deg, var(--primary-turquoise), var(--primary-pink));
  color: var(--text-white);
  text-decoration: none;
  border-radius: 50%;
  transition: all var(--transition-normal);
  font-size: 1.2rem;
  position: relative;
  overflow: hidden;
  /* Touch-Feedback */
  -webkit-tap-highlight-color: transparent;
}

.social-links a::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transform: scale(0);
  transition: transform var(--transition-normal);
}

.social-links a:hover::before,
.social-links a:focus::before,
.social-links a:active::before {
  transform: scale(1);
}

.social-links a:hover,
.social-links a:focus,
.social-links a:active {
  transform: scale(1.1);
  box-shadow: var(--shadow-color);
  outline: none;
}

/* ==========================================================================
   Floating Elements (reduziert für mobile Performance)
   ========================================================================== */

.floating-elements {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  /* Reduzierte Opazität für mobile */
  opacity: 0.5;
}

.floating-elements::before,
.floating-elements::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

.floating-elements::before {
  width: 200px; /* Kleiner auf mobile */
  height: 200px;
  top: 10%;
  left: 5%;
  background: radial-gradient(circle, rgba(64, 224, 208, 0.1) 0%, transparent 70%);
  animation-delay: 0s;
}

.floating-elements::after {
  width: 150px; /* Kleiner auf mobile */
  height: 150px;
  bottom: 10%;
  right: 5%;
  background: radial-gradient(circle, rgba(255, 105, 180, 0.1) 0%, transparent 70%);
  animation-delay: 3s;
}

/* ==========================================================================
   Moderne Scrollbar
   ========================================================================== */

::-webkit-scrollbar {
  width: 6px; /* Dünner auf mobile */
}

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--primary-turquoise), var(--primary-pink));
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(var(--accent-turquoise), var(--accent-pink));
}

/* ==========================================================================
   Animations
   ========================================================================== */

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

@keyframes wave {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-10deg); }
  75% { transform: rotate(10deg); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

@keyframes shimmer {
  0% { transform: translateX(-100%) translateY(-100%) rotate(30deg); }
  100% { transform: translateX(100%) translateY(100%) rotate(30deg); }
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(180deg); }
}

@keyframes countUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS (Mobile-First)
   ========================================================================== */

/* Small Mobile (320px+) - Base styles already mobile-first */
@media (min-width: 20rem) {
  .container {
    padding: 0 var(--spacing-lg);
  }
}

/* Large Mobile (480px+) */
@media (min-width: 30rem) {
  .hero {
    padding: var(--spacing-3xl) 0;
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
  }
  
  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
  
  .shop-features {
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
  }
  
  /* Portfolio Mobile Anpassungen */
  .project-meta {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-sm);
  }
  
  .project-details {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
  }
  
  .footer-actions {
    flex-direction: row;
  }
}

/* Tablet Portrait (768px+) */
@media (min-width: 48rem) {
  /* Größere Touch-Targets für Tablets */
  :root {
    --touch-target-min: 48px;
    --touch-target-comfortable: 52px;
    --touch-target-large: 60px;
  }
  
  /* Desktop Navigation ab Tablet */
  .nav-links {
    position: static;
    display: flex;
    flex-direction: row;
    padding: 0;
    gap: var(--spacing-xl);
    transform: none;
    opacity: 1;
    visibility: visible;
    background: none;
    backdrop-filter: none;
    border-top: none;
  }
  
  .nav-links a {
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-sm);
    min-height: auto;
    background: none;
    transform: none;
  }
  
  .nav-links a::after {
    bottom: -4px;
  }
  
  .mobile-menu-button {
    display: none;
  }
  
  main {
    margin-top: 80px;
  }
  
  .hero {
    padding: 5rem 0;
    min-height: 70vh;
  }
  
  .about-content {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--spacing-3xl);
    text-align: left;
  }
  
  .about-text h2::after {
    left: 0;
    transform: none;
  }
  
  .profile-image {
    width: 250px;
    height: 250px;
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  
  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  
  .footer-content {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  
  .footer-info {
    text-align: left;
  }
  
  /* Portfolio Tablet Anpassungen */
  .overview-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
  
  .project-hero {
    align-items: center;
  }
  
  .modal-content {
    width: calc(100% - var(--spacing-2xl));
    max-width: 900px;
  }
}

/* Tablet Landscape / Small Desktop (1024px+) */
@media (min-width: 64rem) {
  .container {
    padding: 0 var(--spacing-xl);
  }
  
  .about-content {
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-3xl);
  }
  
  .profile-image {
    width: 280px;
    height: 280px;
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  }
  
  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  }
  
  .shop-features {
    flex-direction: row;
    gap: var(--spacing-xl);
  }
}

/* Desktop (1200px+) */
@media (min-width: 75rem) {
  .hero {
    padding: 6rem 0;
    min-height: 80vh;
  }
  
  .section-card {
    padding: 5rem 0;
  }
  
  .skills-section,
  .portfolio-section {
    padding: 5rem 0;
  }
  
  .floating-elements {
    opacity: 1;
  }
  
  .floating-elements::before {
    width: 300px;
    height: 300px;
  }
  
  .floating-elements::after {
    width: 200px;
    height: 200px;
  }
}

/* Large Desktop (1440px+) */
@media (min-width: 90rem) {
  .hero {
    min-height: 85vh;
  }
  
  .portfolio-grid,
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
    max-width: 1200px;
    margin: 0 auto;
  }
}

/* ==========================================================================
   High DPI / Retina Displays
   ========================================================================== */

@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* Schärfere Schatten für Retina */
  :root {
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.16);
    --shadow-heavy: 0 10px 25px rgba(0, 0, 0, 0.19);
  }
}

/* ==========================================================================
   Accessibility & Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .floating-elements::before,
  .floating-elements::after {
    animation: none;
  }
  
  .hero-title,
  .hero-subtitle,
  .hero-description,
  .cta-button {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-heavy: 0 8px 16px rgba(0, 0, 0, 0.5);
  }
  
  .nav-links a,
  .cta-button,
  .shop-button,
  .filter-btn {
    border: 2px solid currentColor;
  }
}

/* Dark Mode Support (falls gewünscht) */
@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-light: #94a3b8;
    --bg-white: #1e293b;
    --bg-light: #334155;
    --bg-glass: rgba(30, 41, 59, 0.95);
  }
}

/* ==========================================================================
   Focus Styles (Enhanced for mobile)
   ========================================================================== */

*:focus {
  outline: 3px solid var(--accent-pink);
  outline-offset: 2px;
}

/* Spezielle Focus-Styles für interaktive Elemente */
.nav-links a:focus,
.cta-button:focus,
.shop-button:focus,
.about-cta:focus,
.filter-btn:focus,
.skill-card:focus,
.social-links a:focus {
  outline: 3px solid var(--text-white);
  outline-offset: 2px;
}

.mobile-menu-button:focus {
  outline: 3px solid var(--accent-pink);
  outline-offset: 2px;
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
  .floating-elements,
  .shop-section,
  footer,
  .mobile-menu-button,
  .portfolio-filter {
    display: none;
  }
  
  body {
    background: white;
    color: black;
    font-size: 12pt;
    line-height: 1.4;
  }
  
  .hero,
  .section-card,
  .skills-section,
  .portfolio-section {
    background: white;
    box-shadow: none;
    break-inside: avoid;
  }
  
  h1, h2, h3 {
    color: black;
    break-after: avoid;
  }
  
  .container {
    max-width: none;
    padding: 0;
  }
  
  .profile-image {
    width: 200px;
    height: 200px;
  }
}

/* ==========================================================================
   Loading States & Performance
   ========================================================================== */

.loading-spinner {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-3xl);
  color: var(--text-secondary);
  font-style: italic;
}

/* Verhindert FOUC (Flash of Unstyled Content) */
.js-loading {
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}

.js-loaded {
  opacity: 1;
}

/* ==========================================================================
   Touch Device Optimizations
   ========================================================================== */

/* Touch-Active States für besseres Feedback */
.touch-active {
  transform: scale(0.98) !important;
  transition: transform 0.1s ease !important;
}

/* Verbesserte Touch-Gesten für mobile Geräte */
@media (hover: none) and (pointer: coarse) {
  /* Entfernt Hover-Effekte auf Touch-Geräten */
  .skill-card:hover,
  .portfolio-item:hover,
  .nav-links a:hover,
  .cta-button:hover,
  .shop-button:hover {
    transform: none;
  }
  
  /* Aktiviert Touch-Feedback */
  .skill-card:active,
  .portfolio-item:active,
  .cta-button:active,
  .shop-button:active,
  .filter-btn:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
  }
  
  /* Optimierte Tap-Highlights */
  * {
    -webkit-tap-highlight-color: rgba(255, 20, 147, 0.2);
  }
  
  /* Verbesserte Scroll-Performance */
  .portfolio-grid,
  .skills-grid {
    -webkit-overflow-scrolling: touch;
  }
}

/* Mobile-spezifische Optimierungen */
.mobile-optimized .floating-elements {
  display: none; /* Reduziert GPU-Load auf mobilen Geräten */
}

.mobile-optimized .profile-image::before {
  animation: none; /* Deaktiviert Shimmer-Animation auf mobile */
}

.tablet-optimized .floating-elements {
  opacity: 0.7;
}

.desktop-optimized .floating-elements {
  opacity: 1;
}

/* ==========================================================================
   Container Queries (für unterstützende Browser)
   ========================================================================== */

@supports (container-type: inline-size) {
  .skills-section,
  .portfolio-section {
    container-type: inline-size;
  }
  
  @container (min-width: 768px) {
    .skill-card {
      padding: var(--spacing-2xl);
    }
    
    .portfolio-item {
      margin-bottom: var(--spacing-lg);
    }
  }
}