@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-main: #F8FAFC;
  --bg-card: #FFFFFF;
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --accent-teal: #0D9488;
  --accent-teal-hover: #0F766E;
  --accent-indigo: #4F46E5;
  --gradient-primary: linear-gradient(135deg, var(--accent-teal), var(--accent-indigo));
  --border-radius: 16px;
  --transition: all 0.3s ease;
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 12px 24px -4px rgba(0, 0, 0, 0.05);
  --border-color: rgba(0, 0, 0, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* --- Typography --- */
h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  text-align: center;
  letter-spacing: -0.5px;
}

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

p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --- Layout Utilities --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 6rem 0;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-size: 1.1rem;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 8px 20px rgba(13, 148, 136, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(13, 148, 136, 0.35);
}

.btn-secondary {
  background: white;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  border-color: var(--accent-indigo);
  transform: translateY(-2px);
}

/* --- Header / Nav --- */
header {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 0rem 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

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

.nav-links a.btn-primary {
  color: white;
}

.nav-links a.btn-primary:hover {
  color: white;
}

/* --- Hero Section --- */
.hero {
  padding: 12rem 0 8rem;
  text-align: center;
  position: relative;
  background: radial-gradient(circle at top center, rgba(13, 148, 136, 0.05) 0%, rgba(248, 250, 252, 0) 70%);
}

.hero p.subtitle {
  font-size: 1.25rem;
  max-width: 800px;
  margin: 0 auto 3rem;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
}

/* --- Social Proof --- */
.social-proof {
  padding: 4rem 0;
  background: white;
  text-align: center;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.social-proof p {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 2rem;
  color: var(--text-secondary);
}

.logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 5rem;
  flex-wrap: wrap;
}

.logos img {
  height: 40px;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.6);
  transition: var(--transition);
}

.logos img:hover {
  filter: grayscale(0%) opacity(1);
}

.logo-text-placeholder {
  font-size: 1.8rem;
  font-weight: 800;
  color: #94A3B8;
  letter-spacing: -1px;
  transition: var(--transition);
}

.logo-text-placeholder:hover {
  color: var(--text-primary);
}

/* --- Problem Agitation --- */
.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 4rem;
}

.card {
  background: var(--bg-card);
  padding: 3rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.card.bad {
  border-top: 4px solid #ef4444;
}

.card.good {
  border-top: 4px solid var(--accent-teal);
  background: linear-gradient(180deg, rgba(13, 148, 136, 0.03) 0%, var(--bg-card) 100%);
}

.card ul li {
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
}

/* --- Use Cases --- */
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.use-case-card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
  transition: var(--transition);
}

.use-case-card:hover {
  transform: translateX(10px);
  border-color: rgba(79, 70, 229, 0.3);
  box-shadow: var(--shadow-md);
}

.use-case-icon {
  font-size: 2.5rem;
  color: var(--accent-indigo);
  background: rgba(79, 70, 229, 0.1);
  padding: 1.5rem;
  border-radius: 20px;
  flex-shrink: 0;
}

.use-case-content h3 {
  margin-bottom: 0.8rem;
  color: var(--text-primary);
}

/* --- Services --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  margin-top: 4rem;
}

.service-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  color: var(--accent-teal);
}

/* --- Process --- */
.process-steps {
  display: flex;
  justify-content: space-between;
  gap: 3rem;
  margin-top: 5rem;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 35px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--border-color);
  z-index: 0;
}

.step {
  flex: 1;
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 70px;
  height: 70px;
  background: white;
  border: 3px solid var(--accent-indigo);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 800;
  margin: 0 auto 1.5rem;
  color: var(--accent-indigo);
  box-shadow: 0 0 0 10px var(--bg-main);
}

/* --- Testimonials --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
  margin-top: 4rem;
}

.testimonial-card {
  background: white;
  padding: 3rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.quote-icon {
  position: absolute;
  top: 2rem;
  right: 2rem;
  font-size: 3rem;
  color: rgba(13, 148, 136, 0.1);
}

.testimonial-text {
  font-style: italic;
  font-size: 1.15rem;
  color: var(--text-primary);
  margin-bottom: 2.5rem;
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.author-info h4 {
  margin: 0;
  font-size: 1.1rem;
}

.author-info p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--accent-indigo);
  font-weight: 500;
}

/* --- Lead Gen Form --- */
.lead-gen {
  background: white;
  padding: 5rem;
  border-radius: var(--border-radius);
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.5rem;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-group input {
  width: 100%;
  padding: 1.2rem;
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent-teal);
  box-shadow: 0 0 0 4px rgba(13, 148, 136, 0.1);
  background: white;
}

.form-submit {
  width: 100%;
  margin-top: 1.5rem;
  padding: 1.2rem;
  font-size: 1.2rem;
}

.micro-copy {
  font-size: 0.9rem;
  margin-top: 1.5rem;
  display: block;
  color: var(--text-secondary);
}

/* --- Trust Section (Footer) --- */
.trust-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border-color);
}

.trust-badges {
  display: flex;
  gap: 4rem;
  align-items: center;
  margin-bottom: 2rem;
}

.trust-badges img {
  height: 35px;
  filter: grayscale(100%) opacity(0.5);
  transition: var(--transition);
}

.trust-badges img:hover {
  filter: grayscale(0%) opacity(1);
}

.made-in-germany {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  background: white;
  padding: 0.8rem 1.5rem;
  border-radius: 50px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

/* --- Footer --- */
footer {
  padding: 4rem 0 2rem;
  text-align: center;
  background: white;
  margin-top: 6rem;
  border-top: 1px solid var(--border-color);
}

/* --- KPI Section --- */
.kpi-section {
  padding: 5rem 0;
  background: var(--gradient-primary);
  color: white;
  text-align: center;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
}

.kpi-card {
  padding: 1rem;
}

.kpi-card h3 {
  font-size: 4rem;
  margin-bottom: 0.5rem;
  color: white;
  line-height: 1;
}

.kpi-card p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  font-weight: 500;
  margin: 0;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .problem-grid,
  .process-steps,
  .use-cases-grid {
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .process-steps::before {
    display: none;
  }

  .nav-links {
    display: none;
  }

  .logos {
    gap: 2rem;
  }

  .lead-gen {
    padding: 2.5rem;
  }
}