/* ========================================
   Legal Tech Center - Main Stylesheet
   ======================================== */

/* CSS Custom Properties */
:root {
  --color-primary: #0030b8;
  --color-primary-dark: #002090;
  --color-accent: #44c0fd;
  --color-accent-light: #7dd3fc;
  --color-white: #ffffff;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  --border-radius: 8px;
  --border-radius-lg: 12px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);

  --transition: 150ms ease-in-out;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-800);
  background-color: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--spacing-md);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-gray-900);
}

p {
  margin: 0 0 var(--spacing-md);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

img {
  max-width: 100%;
  height: auto;
}

address {
  font-style: normal;
}

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

.section-title {
  font-size: 2rem;
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  color: var(--color-gray-900);
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--color-primary);
  margin: var(--spacing-md) auto 0;
  border-radius: 2px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
}

/* ========================================
   Header & Navigation
   ======================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--color-white);
  box-shadow: var(--shadow);
  z-index: 1000;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-image {
  height: 40px;
  width: auto;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--spacing-xl);
}

.nav-links a {
  color: var(--color-gray-700);
  font-weight: 500;
  transition: color var(--transition);
}

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

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--spacing-sm);
  cursor: pointer;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-gray-700);
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: var(--color-gray-700);
  left: 0;
}

.hamburger::before {
  top: -7px;
}

.hamburger::after {
  top: 7px;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  position: relative;
  overflow: hidden;
  padding: var(--spacing-4xl) var(--spacing-lg);
}

.hero-content {
  text-align: center;
  max-width: 800px;
  z-index: 1;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
  line-height: 1.2;
}

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

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero .btn-primary {
  background-color: var(--color-accent);
  color: var(--color-gray-900);
  font-weight: 600;
}

.hero .btn-primary:hover {
  background-color: var(--color-accent-light);
}

.hero-decoration {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(68, 192, 253, 0.1);
  top: -200px;
  right: -200px;
}

.hero-decoration::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(68, 192, 253, 0.1);
  bottom: -300px;
  left: -400px;
}

/* ========================================
   About Section
   ======================================== */
.about {
  padding: var(--spacing-4xl) 0;
  background-color: var(--color-white);
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.about-text .lead {
  font-size: 1.25rem;
  color: var(--color-gray-700);
  line-height: 1.7;
}

.about-text p {
  color: var(--color-gray-600);
}

.partner-box {
  background: var(--color-gray-50);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  border-left: 4px solid var(--color-primary);
}

.partner-label {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.partner-logo {
  max-width: 120px;
  height: auto;
  margin-bottom: var(--spacing-md);
}

.partner-name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-900);
  margin: 0;
}

/* ========================================
   Services Section
   ======================================== */
.services {
  padding: var(--spacing-4xl) 0;
  background-color: var(--color-gray-50);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.service-card {
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

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

.service-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-900);
}

.service-description {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  margin: 0;
}

/* ========================================
   Events Section
   ======================================== */
.events {
  padding: var(--spacing-4xl) 0;
  background-color: var(--color-white);
}

.events-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

.event-card {
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.event-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.event-image {
  width: 100%;
  height: 180px;
  overflow: hidden;
}

.event-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.event-card:hover .event-image img {
  transform: scale(1.05);
}

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

.event-title {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-900);
  padding: var(--spacing-md) var(--spacing-lg) 0;
}

.event-description {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  margin: 0;
  padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.video-section {
  max-width: 800px;
  margin: 0 auto;
}

.video-title {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-gray-900);
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  height: 0;
  overflow: hidden;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ========================================
   Faculty Section
   ======================================== */
.faculty {
  padding: var(--spacing-4xl) 0;
  background-color: var(--color-gray-50);
}

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

.faculty-card {
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  text-align: center;
}

.faculty-photo {
  width: 140px;
  height: 140px;
  margin: 0 auto var(--spacing-lg);
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-gray-200);
}

.faculty-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
}

.faculty-name {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
  color: var(--color-gray-900);
}

.faculty-title {
  font-size: 0.9375rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  font-weight: 500;
}

.faculty-bio {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  margin: 0;
  line-height: 1.7;
}

/* ========================================
   Media Section
   ======================================== */
.media {
  padding: var(--spacing-4xl) 0;
  background-color: var(--color-white);
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--spacing-lg);
}

.media-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  background: var(--color-white);
  border-radius: var(--border-radius);
  min-height: 80px;
  transition: box-shadow var(--transition);
}

.media-item:hover {
  box-shadow: var(--shadow-md);
}

.media-logo {
  max-width: 100%;
  max-height: 60px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.7;
  transition: filter var(--transition), opacity var(--transition);
}

.media-item:hover .media-logo {
  filter: grayscale(0%);
  opacity: 1;
}

.media-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-600);
  text-align: center;
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
  padding: var(--spacing-4xl) 0;
  background-color: var(--color-gray-50);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-3xl);
}

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-gray-900);
}

.contact-info address {
  margin-bottom: var(--spacing-lg);
  color: var(--color-gray-600);
}

.contact-detail {
  color: var(--color-gray-600);
}

.contact-detail a {
  color: var(--color-primary);
}

.impressum h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-gray-900);
}

.impressum h4 {
  font-size: 1.125rem;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-900);
}

.impressum p {
  color: var(--color-gray-600);
  font-size: 0.9375rem;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
  background-color: var(--color-gray-900);
  color: var(--color-gray-300);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-2xl);
}

.footer-logo {
  height: 36px;
  width: auto;
  filter: brightness(0) invert(1);
  margin-bottom: var(--spacing-sm);
}

.footer-brand .logo-text {
  color: var(--color-white);
  font-size: 1.25rem;
}

.footer-brand p {
  margin-top: var(--spacing-sm);
  color: var(--color-gray-400);
}

.footer-nav {
  display: flex;
  gap: var(--spacing-xl);
}

.footer-nav a {
  color: var(--color-gray-300);
  transition: color var(--transition);
}

.footer-nav a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid var(--color-gray-700);
  padding-top: var(--spacing-xl);
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
  .services-grid,
  .events-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .faculty-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .media-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .about-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    box-shadow: var(--shadow-md);
  }

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

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .services-grid,
  .events-grid {
    grid-template-columns: 1fr;
  }

  .faculty-grid {
    grid-template-columns: 1fr;
  }

  .media-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    flex-direction: column;
    gap: var(--spacing-xl);
  }

  .footer-nav {
    flex-wrap: wrap;
    gap: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.75rem;
  }

  .media-grid {
    grid-template-columns: 1fr;
  }
}