/* ===== GRUNDLAGEN ===== */
:root {
  --bg: #f9fafb;
  --surface: #ffffff;
  --primary: #6366f1;
  --primary-light: #8183f3;
  --text: #1f2937;
  --text-light: #6b7280;
  --border: #e5e7eb;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
  --radius: 16px;
  --radius-sm: 8px;
  --transition: 0.2s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

button, .btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 1rem;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  box-shadow: var(--shadow);
}

button:hover, .btn:hover {
  background: var(--primary-light);
  transform: scale(0.98);
}

input, textarea, select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  transition: border var(--transition);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem;
}

/* ===== GLASS-EFFEKT (GLOBAL) ===== */
.glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ===== LANDINGPAGE-NAVIGATION ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.2);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}

.logo i {
  font-size: 1.75rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

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

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

/* ===== HERO-SEKTION ===== */
.hero {
  padding: 8rem 0 4rem;
  background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-light);
  font-size: 0.95rem;
}

.hero-meta i {
  color: #10b981;
}

.hero-illustration {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  font-size: 5rem;
  color: var(--primary);
  opacity: 0.8;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

/* ===== SECTION-HEADER (ALLGEMEIN) ===== */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3rem;
}

.section-tag {
  display: inline-block;
  padding: 0.25rem 1rem;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-light);
  font-size: 1.125rem;
}

/* ===== FEATURES ===== */
.features {
  padding: 4rem 0;
  background: var(--bg);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.feature-card {
  padding: 2rem;
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 25px 40px -15px rgba(0,0,0,0.1);
}

.feature-icon {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.feature-list {
  list-style: none;
  margin-top: 1rem;
  padding: 0;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-light);
}

.feature-list i {
  color: var(--primary);
  font-size: 0.875rem;
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
  padding: 4rem 0;
  background: white;
}

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

.step {
  display: flex;
  gap: 2rem;
  margin-bottom: 2rem;
  align-items: flex-start;
}

.step-number {
  width: 50px;
  height: 50px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content h3 {
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

/* ===== USP ===== */
.usp {
  padding: 3rem 0;
  background: var(--bg);
}

.usp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.usp-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: white;
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.usp-item i {
  font-size: 2rem;
  color: var(--primary);
}

.usp-item h4 {
  margin-bottom: 0.25rem;
}

/* ===== CTA ===== */
.cta-section {
  padding: 4rem 0;
  background: white;
}

.cta-box {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem;
  text-align: center;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white;
  border-radius: var(--radius);
}

.cta-box h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: white;
}

.cta-box p {
  margin-bottom: 2rem;
  opacity: 0.95;
}

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

.cta-box .btn:hover {
  background: rgba(255,255,255,0.9);
}

/* ===== FOOTER ===== */
.footer {
  background: #1f2937;
  color: white;
  padding: 3rem 0 1rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer h4 {
  color: white;
  margin-bottom: 1rem;
}

.footer ul {
  list-style: none;
  padding: 0;
}

.footer ul li {
  margin-bottom: 0.5rem;
}

.footer a {
  color: #9ca3af;
  transition: color var(--transition);
}

.footer a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #374151;
  color: #9ca3af;
}

/* ===== RESPONSIVE (LANDINGPAGE) ===== */
@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-buttons {
    justify-content: center;
  }
  .hero-meta {
    justify-content: center;
  }
  .nav-links {
    display: none; /* Für mobile müsste man ein Burger-Menü bauen – bleibt optional */
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .step {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}