/* Custom CSS für Portfolio Website - CLEAN VERSION */

:root {
  /* Basis-Farben - Orange-Blue Theme */
  --primary-color: #1e3a8a; /* Dark Blue */
  --primary-hover: #1e40af;
  --accent-color: #f59e0b; /* Orange */
  --accent-hover: #d97706;
  --text-color: #1f2937;
  --text-muted: #6b7280;
  --background: #ffffff;
  --surface: #f9fafb;
  --border-color: #e5e7eb;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Typography */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --text-color: #f59e0b; /* Orange für bessere Lesbarkeit */
  --text-muted: #fbbf24; /* Helleres Orange für sekundäre Texte */
  --background: #111827;
  --surface: #1f2937;
  --border-color: #374151;
  --primary-color: #fbbf24; /* Helles Orange für Überschriften im Dark Mode */
}

/* Dark Mode spezifische Textfarben für bessere Lesbarkeit */
[data-theme="dark"] body {
  color: var(--text-color);
}

[data-theme="dark"] p,
[data-theme="dark"] span,
[data-theme="dark"] div {
  color: var(--text-color);
}

/* Hero-Sektion spezifische Dark Mode Anpassungen */
[data-theme="dark"] .hero .claim {
  color: #d97706; /* Dunkles Orange für die drei Stichpunkte */
}

[data-theme="dark"] .hero .description {
  color: #f3f4f6; /* Weiß für den Fließtext */
}

/* Nur die orangenen Kategorie-Buttons weiß machen */
[data-theme="dark"] .project-category {
  color: white !important;
}

/* Filter-Buttons Dark Mode - einheitlich für alle Seiten */
[data-theme="dark"] .skills-filter .filter-btn,
[data-theme="dark"] .filter-tag {
  color: #f3f4f6; /* Weiß für bessere Sichtbarkeit */
}

/* ==========================================================================
   EDUCATION TIMELINE - SIMILAR TO CAREER TIMELINE
   ========================================================================== */

.education-timeline {
  position: relative;
  margin: var(--spacing-2xl) 0;
  display: flex;
  gap: var(--spacing-2xl);
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

.education-timeline-line {
  position: relative;
  width: 4px;
  background: linear-gradient(180deg, var(--accent-color) 0%, var(--primary-color) 100%);
  border-radius: 2px;
  flex-shrink: 0;
}

.education-institutions {
  flex: 1;
}

.education-institution-group {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.education-institution-block {
  position: relative;
  background: var(--background);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.education-institution-block:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.education-institution-group::before {
  content: '';
  position: absolute;
  top: 15px;
  left: calc(-2rem - 33px);
  width: 24px;
  height: 24px;
  background: white;
  border: 5px solid var(--accent-color);
  border-radius: 50%;
  z-index: 2;
}

.education-institution-name {
  color: var(--primary-color);
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  text-align: center;
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: 2px;
}

.education-entry {
  margin-bottom: var(--spacing-xs);
  padding-bottom: 2px;
  border-bottom: 1px solid var(--border-color);
}

.education-entry:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.education-period {
  color: var(--accent-color);
  font-weight: 700;
  font-size: var(--font-size-sm);
  margin-bottom: 2px;
}

.education-title {
  color: var(--text-color);
  font-size: var(--font-size-sm);
  font-weight: 500;
  line-height: 1.3;
}

.education-details {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  margin-bottom: var(--spacing-lg);
}

.education-detail {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  line-height: 1.5;
  margin-bottom: var(--spacing-sm);
}

.education-detail:last-child {
  margin-bottom: var(--spacing-md);
}

/* Responsive für Education Timeline */
@media (max-width: 768px) {
  .education-timeline {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .education-timeline-line {
    height: 4px;
    width: 100%;
  }
  
  .education-institution-group::before {
    display: none;
  }
  
  .education-institution-block {
    padding: var(--spacing-lg);
  }
  
  .education-detail {
    font-size: var(--font-size-xs);
    margin-bottom: var(--spacing-xs);
  }
}

/* Legacy Education Styles - for backward compatibility */
.education-items .card {
  margin-bottom: var(--spacing-xl);
}

.education-items .card:last-child {
  margin-bottom: 0;
}

/* Certificate Badge Images */
.certificate-badge-image {
  text-align: center;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--surface);
  border-radius: var(--radius-lg);
}

.badge-image {
  width: 100px;
  height: 100px;
  object-fit: contain;
  border-radius: var(--radius-md);
}

/* Footer Links - dezent und klein */
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  font-size: var(--font-size-sm);
}

.footer-links a {
  text-decoration: none;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

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

/* Contact Card Link */
.contact-card-link {
  text-decoration: none;
  color: inherit;
  display: block;
  transition: var(--transition-fast);
  cursor: pointer;
}

.contact-card-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.contact-email-large {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--primary-color) !important;
  margin-top: var(--spacing-md);
}

[data-theme="dark"] .contact-email-large {
  color: var(--accent-color) !important;
}

/* Skills Page Layout */
.skills-grid {
  display: grid;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

/* Focus Areas - Two columns side by side on homepage */
.skills-grid.focus-areas {
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

/* Responsive for focus areas */
@media (max-width: 768px) {
  .skills-grid.focus-areas {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

.skill-category {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-color);
}

.skill-category h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.skills-list {
  display: grid;
  gap: var(--spacing-sm);
}

.skill-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid var(--border-color);
}

.skill-item:last-child {
  border-bottom: none;
}

.skill-name {
  font-weight: 400;
  color: var(--text-color);
  flex: 1;
  font-size: var(--font-size-sm);
}

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

.skill-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--border-color);
  transition: var(--transition-fast);
}

.skill-dot.active {
  background: var(--accent-color);
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.4);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   HERO SECTION - ORANGE-BLUE DESIGN
   ========================================================================== */

.hero {
  background: linear-gradient(135deg, var(--surface) 0%, rgba(30, 58, 138, 0.05) 100%);
  padding: var(--spacing-2xl) 0;
  position: relative;
  overflow: hidden;
}

.hero::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 1000 1000"><defs><radialGradient id="g"><stop offset="20%" stop-color="%23f59e0b" stop-opacity="0.1"/><stop offset="50%" stop-color="%231e3a8a" stop-opacity="0.05"/><stop offset="100%" stop-color="transparent"/></radialGradient></defs><circle cx="200" cy="200" r="300" fill="url(%23g)"/><circle cx="800" cy="800" r="400" fill="url(%23g)"/></svg>') no-repeat;
  background-size: cover;
  opacity: 0.3;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-2xl);
  max-width: 1200px;
  margin: 0 auto;
}

.hero-text {
  flex: 1;
  text-align: left;
  max-width: 600px;
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-name {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
}

.hero-accent {
  color: var(--accent-color);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
  font-weight: 500;
}

.hero .claim {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
  line-height: 1.4;
}

.hero .description {
  font-size: var(--font-size-lg);
  color: var(--text-muted);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.profile-image {
  width: 450px;
  height: 450px;
  border-radius: 50%;
  object-fit: cover;
  border: 6px solid var(--primary-color);
  box-shadow: var(--shadow-xl);
  transition: var(--transition-normal);
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  display: block;
}

.profile-image:hover {
  transform: scale(1.05);
  box-shadow: 0 25px 50px -12px rgba(30, 58, 138, 0.3);
}

/* ==========================================================================
   AUSZEICHNUNGEN SECTION
   ========================================================================== */

.awards-grid {
  margin-top: var(--spacing-xl);
}

.award-card {
  text-align: center;
  padding: var(--spacing-2xl);
  border: none;
  border-radius: var(--radius-xl);
  background: var(--background);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

/* Orange Trennstrich entfernt */
.award-card::before {
  display: none;
}

.award-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.award-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
  display: block;
}

.award-card h3 {
  color: var(--primary-color);
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.award-subtitle {
  color: var(--accent-color);
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
}

.award-description {
  color: var(--text-color);
  font-size: var(--font-size-base);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.award-note {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  font-style: italic;
  line-height: 1.5;
  margin-bottom: 0;
}

/* Full width award card */
.award-card-full {
  max-width: none;
  width: 100%;
}

/* Responsive für Awards */
@media (max-width: 768px) {
  .award-card {
    padding: var(--spacing-xl);
    text-align: left;
  }
  
  .award-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
  }
}

/* ==========================================================================
   KARRIERE TIMELINE
   ========================================================================== */

.career-timeline {
  position: relative;
  margin: var(--spacing-2xl) 0;
  display: flex;
  gap: var(--spacing-2xl);
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

.career-timeline-line {
  position: relative;
  width: 4px;
  background: linear-gradient(180deg, var(--accent-color) 0%, var(--primary-color) 100%);
  border-radius: 2px;
  flex-shrink: 0;
}

.career-companies {
  flex: 1;
}

.career-company-group {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.career-company-block {
  position: relative;
  background: var(--background);
  border-radius: var(--radius-xl);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}


.career-company-block:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.career-company-group::before {
  content: '';
  position: absolute;
  top: 15px;
  left: calc(-2rem - 33px);
  width: 24px;
  height: 24px;
  background: white;
  border: 5px solid var(--accent-color);
  border-radius: 50%;
  z-index: 2;
}

.career-company-name {
  color: var(--primary-color);
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  text-align: center;
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: 2px;
}

.career-position {
  margin-bottom: var(--spacing-xs);
  padding-bottom: 2px;
  border-bottom: 1px solid var(--border-color);
}

.career-position:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.career-period {
  color: var(--accent-color);
  font-weight: 700;
  font-size: var(--font-size-sm);
  margin-bottom: 2px;
}

.career-role {
  color: var(--text-color);
  font-size: var(--font-size-sm);
  font-weight: 400;
  line-height: 1.3;
}

/* Career role on career page should be bold */
.career-company-block-full .career-role {
  font-weight: 500;
}

/* Career Page - Extended Styles for Full Career Display */
.career-company-block-full {
  padding: var(--spacing-xl);
}

.career-achievements {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  margin-bottom: var(--spacing-lg);
}

.career-achievement {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  line-height: 1.5;
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-md);
  position: relative;
}

.career-achievement:last-child {
  margin-bottom: var(--spacing-md);
}

.career-achievement::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: bold;
}

/* Remove bullet points as requested */
.career-achievement::before {
  display: none;
}

.career-achievement {
  padding-left: 0;
}

/* Responsive für Timeline */
@media (max-width: 768px) {
  .career-timeline {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .career-timeline-line {
    height: 4px;
    width: 100%;
  }
  
  .career-company-group::before {
    display: none;
  }
  
  .career-company-block-full {
    padding: var(--spacing-lg);
  }
  
  .career-achievement {
    font-size: var(--font-size-xs);
    margin-bottom: var(--spacing-xs);
  }
}

/* ==========================================================================
   BUTTONS - ORANGE-BLUE DESIGN
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: 50px;
  font-weight: 600;
  font-size: var(--font-size-base);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.btn::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: var(--transition-normal);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--accent-color);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn-secondary {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-group {
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-start;
  flex-wrap: wrap;
}

/* Contact Link (Simple Style) */
.contact-link-container {
  margin-top: var(--spacing-lg);
}

.contact-link {
  color: var(--primary-color);
  text-decoration: none;
  font-size: var(--font-size-lg);
  font-weight: 600;
  transition: var(--transition-fast);
  display: inline-block;
}

.contact-link:hover {
  color: var(--accent-color);
}

/* ==========================================================================
   PROJECT CARDS - ORANGE-BLUE DESIGN
   ========================================================================== */

.project-card {
  border: none;
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  background: var(--background);
  transition: all 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.project-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  display: block;
}

.project-category {
  background: var(--accent-color);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 50px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
  display: inline-block;
  width: fit-content;
}

.project-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.project-role {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.project-period {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  font-weight: 400;
}

.project-card h3 {
  color: var(--primary-color);
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
}

.project-summary {
  color: var(--primary-color);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-md);
  line-height: 1.4;
}

/* Project Highlights */
.project-highlights {
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-lg);
  color: var(--text-muted);
}

.project-highlights li {
  font-size: var(--font-size-sm);
  line-height: 1.4;
  margin-bottom: var(--spacing-xs);
  color: var(--text-muted);
}

.project-highlights li:last-child {
  margin-bottom: 0;
}

/* Project Teasers (Homepage) */
.project-teaser {
  cursor: pointer;
  transition: var(--transition-normal);
  min-height: 280px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.project-teaser::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.project-teaser:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.project-teaser h3 {
  color: var(--primary-color);
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
  flex-shrink: 0;
}

.project-teaser .project-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  display: block;
}

.project-teaser .project-category {
  background: var(--accent-color);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 50px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
  display: inline-block;
  width: fit-content;
}

.project-teaser .project-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.project-teaser .project-role {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.project-teaser .project-period {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  font-weight: 400;
}

.project-teaser .project-technologies {
  color: var(--primary-color);
  font-size: var(--font-size-xs);
  font-weight: 500;
  margin-top: auto;
  padding-top: var(--spacing-md);
  line-height: 1.4;
}



.tech-tag {
  background: rgba(30, 58, 138, 0.1);
  color: var(--primary-color);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.tech-more {
  background: var(--surface);
  color: var(--text-muted);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

/* Project Technologies - with separators */
.project-technologies {
  color: var(--primary-color);
  font-size: var(--font-size-xs);
  font-weight: 500;
  margin-top: auto;
  padding-top: var(--spacing-md);
  line-height: 1.4;
}

/* ==========================================================================
   FILTER SECTION - ORANGE-BLUE DESIGN
   ========================================================================== */

.filter-section {
  background: var(--background);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  margin-bottom: var(--spacing-2xl);
  border: none;
  box-shadow: var(--shadow-md);
  text-align: center;
}

.filter-title {
  color: var(--primary-color);
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.filter-tags {
  display: flex;
  flex-wrap: nowrap;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-top: var(--spacing-lg);
}

.filter-tag {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--surface);
  color: var(--text-color);
  border: 2px solid var(--border-color);
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 600;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.filter-tag:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.filter-tag.active {
  background: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   NAVIGATION - ORANGE-BLUE DESIGN
   ========================================================================== */

.header {
  background: var(--background);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.nav-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: var(--transition-fast);
  margin-right: var(--spacing-xl);
}

.nav-brand:hover {
  transform: scale(1.05);
  filter: brightness(1.1);
}

.nav-logo {
  height: 60px;
  width: auto;
  transition: var(--transition-fast);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
  justify-content: center;
}

.nav-link {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 20px;
  transition: all 0.3s ease;
  position: relative;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--primary-color);
  background: rgba(30, 58, 138, 0.05);
}

.nav-link.active {
  color: white;
  background: var(--accent-color);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

.theme-toggle {
  background: var(--accent-color);
  border: none;
  border-radius: 20px;
  width: auto;
  height: auto;
  padding: var(--spacing-xs) var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: var(--font-size-xs);
  color: white;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}

.theme-toggle:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: var(--font-size-xl);
  color: var(--text-color);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.nav-toggle:hover {
  background: var(--surface);
  color: var(--primary-color);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .nav {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--background);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--border-color);
    justify-content: flex-start;
    gap: var(--spacing-xs);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .nav-link {
    width: 100%;
    text-align: center;
    padding: var(--spacing-sm);
    border-radius: 15px;
    font-size: var(--font-size-sm);
  }

  .nav {
    position: relative;
  }

  .nav-brand {
    margin-right: var(--spacing-md);
  }
  
  .nav-logo {
    height: 48px;
  }

  .theme-toggle {
    font-size: var(--font-size-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}

/* ==========================================================================
   LAYOUT & GRID SYSTEM
   ========================================================================== */

/* Basic Layout */
main {
  min-height: 80vh;
  padding: var(--spacing-xl) 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Section Spacing - Größere Abstände zwischen Hauptabschnitten */
section.container {
  margin-bottom: var(--spacing-3xl);
}

section.container:last-of-type {
  margin-bottom: var(--spacing-xl);
}

/* Hero Section - weniger Abstand nach unten */
.hero {
  margin-bottom: var(--spacing-2xl);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
}

h1 {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
}

h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
}

p {
  color: var(--text-color);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

/* Cards */
.card {
  background: var(--background);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Word Cloud */
.word-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-lg);
  min-height: 250px;
  background: linear-gradient(135deg, var(--surface) 0%, rgba(30, 58, 138, 0.02) 100%);
  border-radius: var(--radius-xl);
  margin: var(--spacing-lg) 0;
}

.word-cloud-item {
  color: var(--primary-color);
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  white-space: nowrap;
  line-height: 1.1;
  margin: 0 2px 2px 0;
}

.word-cloud-item:hover {
  color: var(--accent-color);
  transform: scale(1.05);
  background: rgba(245, 158, 11, 0.1);
}

/* Word Cloud Sizes - Normal (bei spezifischen Filtern) */
.word-cloud-item.level-1 { font-size: 0.7rem; opacity: 0.7; }
.word-cloud-item.level-2 { font-size: 0.8rem; opacity: 0.8; }
.word-cloud-item.level-3 { font-size: 0.95rem; opacity: 0.9; }
.word-cloud-item.level-4 { font-size: 1.1rem; opacity: 0.95; }
.word-cloud-item.level-5 { font-size: 1.3rem; opacity: 1; font-weight: 700; }

/* Word Cloud Sizes - Kompakt (bei "ALLE" Filter) */
.word-cloud.compact .word-cloud-item.level-1 { font-size: 0.6rem; }
.word-cloud.compact .word-cloud-item.level-2 { font-size: 0.7rem; }
.word-cloud.compact .word-cloud-item.level-3 { font-size: 0.8rem; }
.word-cloud.compact .word-cloud-item.level-4 { font-size: 0.9rem; }
.word-cloud.compact .word-cloud-item.level-5 { font-size: 1.0rem; }

/* Skills Filter */
.skills-filter {
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.skills-filter .filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-top: var(--spacing-lg);
}

.skills-filter .filter-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--surface);
  color: var(--text-color);
  border: 2px solid var(--border-color);
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 600;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.skills-filter .filter-btn:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.skills-filter .filter-btn.active {
  background: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Word Cloud Animation */
.word-cloud-item {
  transition: all 0.4s ease;
}

.word-cloud-item.filtered-out {
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
}

.grid {
  display: grid;
  gap: var(--spacing-xl);
}

.grid-1 {
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  max-width: 600px;
  margin: 0 auto;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

/* Responsive für kleinere Bildschirme */
@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.text-center {
  text-align: center;
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mt-xl {
  margin-top: var(--spacing-xl);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

@media (max-width: 768px) {
  .hero {
    padding: var(--spacing-xl) 0;
  }
  
  .hero-content {
    flex-direction: column-reverse;
    text-align: center;
    gap: var(--spacing-xl);
  }
  
  .hero-text {
    text-align: center;
  }
  
  .profile-image {
    width: 250px;
    height: 250px;
  }
  
  .hero-name {
    font-size: var(--font-size-3xl);
  }
  
  .hero .claim {
    font-size: var(--font-size-lg);
  }
  
  .btn-group {
    justify-content: center;
  }
  
  .contact-link-container {
    text-align: center;
    margin-top: var(--spacing-xl);
  }
  
  .filter-tags {
    gap: var(--spacing-xs);
    justify-content: center;
  }
  
  .filter-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    border-radius: 20px;
  }

  /* Skills Filter responsive */
  .skills-filter .filter-tags {
    gap: var(--spacing-xs);
    justify-content: center;
  }
  
  .skills-filter .filter-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    border-radius: 20px;
  }
}

@media (max-width: 480px) {
  .hero-name {
    font-size: var(--font-size-2xl);
  }
  
  .profile-image {
    width: 200px;
    height: 200px;
  }
  
  .hero-content {
    gap: var(--spacing-lg);
  }
  
  .btn {
    width: 100%;
    max-width: 280px;
  }
  
  .btn-group {
    flex-direction: column;
    align-items: center;
  }
}