/* Open Tabata Landing Page – Clean & Energetic */

:root {
  --primary: #FF6B35; /* Energie-Orange */
  --primary-dark: #E85A24;
  --secondary: #2C3E50; /* Tiefes Blau */
  --bg-light: #F8F9FA;
  --text: #333;
  --text-light: #666;
  --white: #FFF;
  --spacing: 1rem;
  --radius: 8px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header / Hero */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  padding: 6rem 0;
  text-align: center;
}
.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 0.5rem;
  letter-spacing: -1px;
}
.hero .subtitle {
  font-size: 1.35rem;
  opacity: 0.95;
  max-width: 700px;
  margin: 0 auto 2rem;
}
.btn-primary {
  display: inline-block;
  background: var(--white);
  color: var(--primary);
  padding: 0.9rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

/* Sections */
.section {
  padding: 4rem 0;
}
.section.light-bg {
  background: var(--bg-light);
}
.section h2 {
  font-size: 2.2rem;
  margin-bottom: 2rem;
  text-align: center;
  color: var(--secondary);
}

/* Grid */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.8rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  transition: transform 0.2s;
}
.card:hover {
  transform: translateY(-4px);
}
.card .icon {
  font-size: 2.5rem;
  margin-bottom: 0.8rem;
}
.card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
  color: var(--secondary);
}

/* Steps */
.steps {
  list-style: none;
  max-width: 600px;
  margin: 0 auto;
}
.steps li {
  padding: 1rem 0 1.5rem 3rem;
  position: relative;
  border-left: 3px solid var(--primary);
  margin-left: 1rem;
}
.steps li::before {
  content: attr(data-step);
  position: absolute;
  left: -1.1rem;
  top: 1.1rem;
  background: var(--primary);
  color: var(--white);
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  text-align: center;
  line-height: 2rem;
  font-weight: bold;
}
.steps li strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

/* Code Block */
pre {
  background: var(--secondary);
  color: #F8F9FA;
  padding: 1.5rem;
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 1.5rem 0;
}
code {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}
.btn-secondary {
  display: inline-block;
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  margin-top: 1rem;
}
.btn-secondary:hover {
  text-decoration: underline;
}

/* Highlight Section */
.highlight {
  background: var(--secondary);
  color: var(--white);
  text-align: center;
}
.highlight h2 {
  color: var(--white);
}
.highlight p {
  max-width: 600px;
  margin: 0 auto;
}
.highlight .btn-primary {
  background: var(--primary);
  color: var(--white);
  margin-top: 1.5rem;
}

/* Footer */
footer {
  background: #1a252f;
  color: #aaa;
  padding: 2rem 0;
  text-align: center;
  font-size: 0.9rem;
}
footer a {
  color: #ddd;
  text-decoration: none;
}
footer a:hover {
  color: var(--white);
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 2.6rem; }
  .hero .subtitle { font-size: 1.1rem; }
  .section { padding: 3rem 0; }
  .grid-4, .grid-3 { grid-template-columns: 1fr; }
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-green { background: #28a745; color: white; }
.badge-blue  { background: #007bff; color: white; }
.badge-gray  { background: #6c757d; color: white; }
.badge-orange { background: var(--primary); color: white; }

/* Template Cards */
.template-card .meta {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 0.8rem;
  font-family: monospace;
}