:root {
  --font-sans: "Plus Jakarta Sans", system-ui, sans-serif;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-primary: #0ea5e9;
  --color-primary-hover: #0284c7;
  --color-accent: #06b6d4;
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 40px rgba(14, 165, 233, 0.15);
  --transition: 0.2s ease;
}

* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  flex: 1;
}

/* Navbar */
.navbar {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  padding: 1rem 0;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text) !important;
}

.nav-link {
  font-weight: 500;
  color: var(--color-text-muted) !important;
  transition: color var(--transition);
}

.nav-link:hover {
  color: var(--color-primary) !important;
}

.btn-nav-cta {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent)) !important;
  color: white !important;
  padding: 0.5rem 1.25rem !important;
  border-radius: var(--radius-md) !important;
  margin-left: 0.5rem;
}

.btn-nav-cta:hover {
  opacity: 0.95;
  color: white !important;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0ea5e9 100%);
  color: white;
  padding: 4rem 0;
  margin-bottom: 2rem;
}

.hero-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.125rem;
  opacity: 0.9;
  max-width: 600px;
}

/* Search */
.search-section {
  margin-top: -1.5rem;
  margin-bottom: 2rem;
}

.search-form {
  background: var(--color-surface);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.form-label {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.375rem;
}

.form-control, .form-select {
  border-radius: var(--radius-md);
  border-color: var(--color-border);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus, .form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2);
}

/* Project Grid */
.projects-section {
  padding-bottom: 4rem;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition);
}

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

.project-card:hover::before {
  opacity: 1;
}

.project-card-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(14, 165, 233, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.project-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text);
  line-height: 1.3;
}

.project-card-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  flex: 1;
}

.project-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.project-card-behoerde {
  color: var(--color-text-muted);
}

.project-card-status {
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
}

.status-offen {
  background: rgba(16, 185, 129, 0.15);
  color: var(--color-success);
}

.status-vergeben {
  background: rgba(245, 158, 11, 0.15);
  color: var(--color-warning);
}

.status-abgeschlossen {
  background: rgba(100, 116, 139, 0.15);
  color: var(--color-text-muted);
}

.project-card-link {
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap var(--transition), color var(--transition);
}

.project-card-link:hover {
  color: var(--color-primary-hover);
  gap: 0.5rem;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  color: var(--color-text-muted);
}

.empty-state a {
  color: var(--color-primary);
  font-weight: 600;
}

/* Detail Page */
.detail-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  color: white;
  padding: 3rem 0;
  margin-bottom: 2rem;
}

.back-link {
  display: inline-block;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: 0.9375rem;
  margin-bottom: 1rem;
  transition: color var(--transition);
}

.back-link:hover {
  color: white;
}

.detail-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.2);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.detail-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.detail-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  font-size: 0.9375rem;
  opacity: 0.9;
}

.detail-content {
  padding-bottom: 4rem;
}

.detail-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 1.5rem;
}

.detail-card h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.detail-description {
  color: var(--color-text);
  white-space: pre-wrap;
}

.apply-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  position: sticky;
  top: 100px;
}

.apply-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.contact-info {
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(14, 165, 233, 0.08);
  border-radius: var(--radius-md);
}

.contact-info a {
  color: var(--color-primary);
  font-weight: 500;
}

/* Form Page */
.form-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  color: white;
  padding: 3rem 0;
  margin-bottom: 2rem;
}

.form-hero-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.form-hero-subtitle {
  opacity: 0.9;
  max-width: 560px;
}

.form-section {
  padding-bottom: 4rem;
}

.form-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  max-width: 640px;
}

/* Success Page */
.success-section {
  padding: 4rem 0;
}

.success-card {
  text-align: center;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
  max-width: 480px;
  margin: 0 auto;
}

.success-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-success), #34d399);
  color: white;
  font-size: 2rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

.success-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.success-text {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  padding: 0.625rem 1.25rem;
  transition: opacity var(--transition), transform var(--transition);
}

.btn-primary:hover {
  opacity: 0.95;
  transform: translateY(-1px);
}

/* Footer */
.footer {
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.7);
  padding: 1.5rem 0;
  font-size: 0.875rem;
}