/* === Reset & Base === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-primary: #1a365d;
  --color-primary-light: #2b6cb0;
  --color-accent: #ed8936;
  --color-bg: #ffffff;
  --color-bg-alt: #f7fafc;
  --color-bg-dark: #1a202c;
  --color-text: #2d3748;
  --color-text-light: #718096;
  --color-text-inverse: #ffffff;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max-width: 1100px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  line-height: 1.7;
  background: var(--color-bg);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1, h2, h3 {
  line-height: 1.2;
  color: var(--color-primary);
}

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

a:hover {
  text-decoration: underline;
}

/* === Header === */
.site-header {
  background: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  color: var(--color-text-inverse);
  font-size: 1.4rem;
  font-weight: 700;
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
  opacity: 0.9;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--color-text-inverse);
  font-size: 0.95rem;
  opacity: 0.85;
  transition: opacity 0.2s;
}

.nav-links a:hover {
  opacity: 1;
  text-decoration: none;
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
  cursor: pointer;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-text-inverse);
}

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

.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

/* === Hero === */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-text-inverse);
  padding: 6rem 0;
  text-align: center;
}

.hero h1 {
  color: var(--color-text-inverse);
  font-size: 3rem;
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  max-width: 650px;
  margin: 0 auto 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* === Features === */
.features {
  padding: 5rem 0;
  background: var(--color-bg-alt);
}

.features h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--color-bg);
  border-radius: 10px;
  padding: 2rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: box-shadow 0.2s;
}

.feature-card:hover {
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

.feature-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* === Screenshots === */
.screenshots {
  padding: 5rem 0;
}

.screenshots h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-light);
  margin-bottom: 2.5rem;
}

.screenshot-placeholder {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
}

.placeholder-box {
  background: var(--color-bg-alt);
  border: 2px dashed #cbd5e0;
  border-radius: 10px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 1rem;
}

/* === Loslegen === */
.loslegen {
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-text-inverse);
  text-align: center;
}

.coming-soon-badge {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-text-inverse);
  padding: 0.4rem 1.2rem;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.loslegen h2 {
  color: var(--color-text-inverse);
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.loslegen .section-subtitle {
  color: rgba(255,255,255,0.85);
  margin-bottom: 2rem;
}

.loslegen-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* === Kontakt === */
.kontakt {
  padding: 5rem 0;
  text-align: center;
  background: var(--color-bg-alt);
}

.kontakt h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.kontakt p {
  color: var(--color-text-light);
  margin-bottom: 0.5rem;
}

.kontakt a {
  font-weight: 600;
}

/* === Footer === */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.6);
  padding: 2rem 0;
  text-align: center;
  font-size: 0.9rem;
}

/* === Responsive === */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .nav-links {
    gap: 1rem;
    font-size: 0.85rem;
  }

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

  .screenshot-placeholder {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding: 4rem 0;
  }

  .hero h1 {
    font-size: 1.75rem;
  }
}