/* ==========================================================================
   Bauhaus Minimalist Scientific Design - German Website
   ========================================================================== */

:root {
  /* Color Palette */
  --primary-blue: #2C5282;
  --secondary-teal: #38B2AC;
  --background-light: #F7FAFC;
  --footer-dark: #1A202C;
  --white: #FFFFFF;
  --gray-light: #EDF2F7;
  --gray-very-light: #F7FAFC;
  
  /* Typography Scale */
  --font-primary: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'IBM Plex Sans', 'Inter', sans-serif;
  --text-base: 1rem;
  --text-sm: 0.875rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  
  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px 0 rgba(44, 82, 130, 0.1), 0 1px 2px 0 rgba(44, 82, 130, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(44, 82, 130, 0.1), 0 2px 4px -1px rgba(44, 82, 130, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(44, 82, 130, 0.1), 0 4px 6px -2px rgba(44, 82, 130, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(44, 82, 130, 0.1), 0 10px 10px -5px rgba(44, 82, 130, 0.04);
}

/* Base Typography */
body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: #2D3748;
  background-color: var(--background-light);
}

/* Scientific Typography Hierarchy */
h1 {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--primary-blue);
  margin-bottom: var(--space-xl);
}

h2 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--primary-blue);
  margin-bottom: var(--space-lg);
}

h3 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  line-height: 1.4;
  color: var(--primary-blue);
  margin-bottom: var(--space-md);
}

h4 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: 1.4;
  color: #4A5568;
  margin-bottom: var(--space-sm);
}

h5, h6 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: 1.4;
  color: #4A5568;
  margin-bottom: var(--space-sm);
}

/* Scientific Components */
.scientific-card {
  background: var(--white);
  border: 1px solid var(--gray-light);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease-in-out;
}

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

.scientific-card--elevated {
  box-shadow: var(--shadow-md);
}

.scientific-card--max-elevation {
  box-shadow: var(--shadow-xl);
}

/* Section Backgrounds */
.section-light {
  background: var(--white);
}

.section-neutral {
  background: var(--gray-light);
}

.section-background {
  background: var(--background-light);
}

/* Header Styles */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-light);
  box-shadow: var(--shadow-sm);
}

.site-header__nav a {
  color: #4A5568;
  font-weight: 500;
  text-decoration: none;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease-in-out;
}

.site-header__nav a:hover {
  background: var(--background-light);
  color: var(--primary-blue);
}

.site-header__nav a.active {
  color: var(--primary-blue);
  background: var(--gray-light);
}

/* Scientific Buttons */
.btn-scientific {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  letter-spacing: 0.025em;
}

.btn-scientific--primary {
  background: var(--primary-blue);
  color: var(--white);
}

.btn-scientific--primary:hover {
  background: #2A4A73;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-scientific--secondary {
  background: var(--secondary-teal);
  color: var(--white);
}

.btn-scientific--secondary:hover {
  background: #319795;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

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

.btn-scientific--outline:hover {
  background: var(--primary-blue);
  color: var(--white);
}

.btn-scientific--ghost {
  background: transparent;
  color: #4A5568;
}

.btn-scientific--ghost:hover {
  background: var(--gray-light);
  color: var(--primary-blue);
}

/* Scientific Forms */
.form-scientific {
  background: var(--white);
  border: 1px solid var(--gray-light);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-sm);
}

.form-scientific__group {
  margin-bottom: var(--space-lg);
}

.form-scientific__label {
  display: block;
  font-weight: 600;
  color: #4A5568;
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  letter-spacing: 0.025em;
}

.form-scientific__input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-base);
  color: #2D3748;
  background: var(--white);
  border: 1px solid #CBD5E0;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease-in-out;
}

.form-scientific__input:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(44, 82, 130, 0.1);
}

.form-scientific__textarea {
  min-height: 120px;
  resize: vertical;
  font-family: var(--font-primary);
}

.form-scientific__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right var(--space-sm) center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: var(--space-3xl);
}

/* Scientific Data Display */
.data-grid {
  display: grid;
  gap: var(--space-lg);
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.data-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--gray-light);
}

.data-row:last-child {
  border-bottom: none;
}

.data-row:nth-child(even) {
  background: var(--background-light);
}

.data-label {
  font-weight: 600;
  color: #4A5568;
  font-size: var(--text-sm);
}

.data-value {
  color: #2D3748;
  font-size: var(--text-sm);
}

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

.nav-scientific__item {
  position: relative;
}

.nav-scientific__link {
  display: block;
  padding: var(--space-sm) var(--space-md);
  color: #4A5568;
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease-in-out;
}

.nav-scientific__link:hover {
  background: var(--background-light);
  color: var(--primary-blue);
}

.nav-scientific__link.active {
  background: var(--primary-blue);
  color: var(--white);
}

/* Content Sections */
.content-section {
  padding: var(--space-3xl) 0;
}

.content-section__intro {
  max-width: 60ch;
  font-size: var(--text-lg);
  color: #4A5568;
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
}

.content-section__content {
  max-width: 75ch;
}

.content-section__content p {
  margin-bottom: var(--space-lg);
  color: #2D3748;
}

/* Scientific Statistics */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-2xl) 0;
}

.stat-card {
  background: var(--white);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-light);
}

.stat-value {
  display: block;
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: var(--space-sm);
}

.stat-label {
  font-size: var(--text-sm);
  color: #4A5568;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Footer */
.site-footer {
  background: var(--footer-dark);
  color: #E2E8F0;
  padding: var(--space-3xl) 0 var(--space-xl) 0;
}

.site-footer__content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.site-footer__section {
  margin-bottom: var(--space-xl);
}

.site-footer__title {
  color: var(--white);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.site-footer__link {
  color: #A0AEC0;
  text-decoration: none;
  display: block;
  margin-bottom: var(--space-sm);
  transition: color 0.15s ease-in-out;
}

.site-footer__link:hover {
  color: var(--secondary-teal);
}

/* Utility Classes */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

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

.text-primary {
  color: var(--primary-blue);
}

.text-secondary {
  color: var(--secondary-teal);
}

.bg-primary {
  background-color: var(--primary-blue);
}

.bg-secondary {
  background-color: var(--secondary-teal);
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --text-4xl: 2rem;
    --text-3xl: 1.75rem;
    --space-3xl: 2.5rem;
  }
  
  .data-row {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .nav-scientific {
    flex-direction: column;
    gap: var(--space-xs);
  }
  
  .container-scientific {
    padding: 0 var(--space-md);
  }
}

@media (max-width: 480px) {
  .scientific-card {
    padding: var(--space-lg);
  }
  
  .form-scientific {
    padding: var(--space-lg);
  }
  
  .content-section {
    padding: var(--space-2xl) 0;
  }
}

/* Focus States for Accessibility */
*:focus {
  outline: 2px solid var(--primary-blue);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .site-header,
  .site-footer,
  .btn-scientific {
    display: none;
  }
  
  .scientific-card,
  .form-scientific {
    box-shadow: none;
    border: 1px solid #000;
  }
  
  body {
    background: white;
    color: black;
  }
}


/* Cookie Banner Additional Styles for Tailwind */
.cookie-banner-hover-effect:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

@media (prefers-reduced-motion: reduce) {
    .cookie-banner-hover-effect:hover {
        transform: none;
    }
}