/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 1rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 600;
  font-size: 1rem;
}

.btn-primary {
  background-color: #16a34a;
  color: white;
}

.btn-primary:hover {
  background-color: #15803d;
}

.btn-secondary {
  background-color: #f97316;
  color: white;
}

.btn-secondary:hover {
  background-color: #ea580c;
}

.btn-outline {
  background-color: transparent;
  color: #16a34a;
  border: 2px solid #16a34a;
}

.btn-outline:hover {
  background-color: #16a34a;
  color: white;
}

.btn-white {
  background-color: white;
  color: #16a34a;
}

.btn-white:hover {
  background-color: #f3f4f6;
}

/* Header */
.header {
  background-color: white;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  height: 60px;
  width: auto;
}

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

.nav a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav a:hover {
  color: #16a34a;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Mobile Navigation */
.mobile-nav {
  display: none;
  background-color: white;
  border-top: 1px solid #e5e7eb;
  padding: 1rem 0;
}

.mobile-nav.active {
  display: block;
}

.mobile-nav ul {
  list-style: none;
}

.mobile-nav li {
  margin-bottom: 1rem;
}

.mobile-nav a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  display: block;
  padding: 0.5rem 0;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
  color: white;
  padding: 5rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero .highlight {
  color: #fbbf24;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* Sections */
.section {
  padding: 4rem 0;
}

.section-gray {
  background-color: #f9fafb;
}

.section-green {
  background-color: #16a34a;
  color: white;
}

.text-center {
  text-align: center;
}

.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }

.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }

/* Grid */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Cards */
.card {
  background-color: white;
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

/* Calculator */
.calculator {
  max-width: 800px;
  margin: 0 auto;
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #374151;
}

.form-input {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid #d1d5db;
  border-radius: 0.5rem;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: #16a34a;
}

.form-help {
  font-size: 0.875rem;
  color: #6b7280;
  margin-top: 0.25rem;
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
}

.result-primary {
  background-color: #dcfce7;
  color: #166534;
}

.result-secondary {
  background-color: #f3f4f6;
  color: #374151;
}

.result-value {
  font-size: 1.5rem;
  font-weight: bold;
}

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

.footer-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer h3 {
  margin-bottom: 1rem;
  color: white;
}

.footer ul {
  list-style: none;
}

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

.footer a {
  color: #9ca3af;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer a:hover {
  color: white;
}

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

.footer-bottom p {
  color: #9ca3af;
  margin-bottom: 1rem;
}

.complaint-hotline {
  font-size: 1.25rem;
  font-weight: bold;
  color: #9ca3af;
  margin: 1rem 0;
}

.disclaimer {
  color: #ef4444;
  font-weight: bold;
  font-size: 1.125rem;
  margin: 1rem 0;
}

/* Floating WhatsApp */
.floating-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1000;
}

.whatsapp-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background-color: #25d366;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  transition: all 0.3s ease;
  text-decoration: none;
}

.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-icon {
  width: 30px;
  height: 30px;
}

/* Stars */
.stars {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1rem;
}

.star {
  color: #fbbf24;
  font-size: 1.25rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
  
  .nav {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .calculator-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .floating-whatsapp {
    bottom: 1rem;
    right: 1rem;
  }
  
  .whatsapp-btn {
    width: 50px;
    height: 50px;
  }
  
  .whatsapp-icon {
    width: 25px;
    height: 25px;
  }
}

@media (max-width: 480px) {
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
}

/* Utility Classes */
.text-gray-600 { color: #6b7280; }
.text-green-600 { color: #16a34a; }
.text-red-600 { color: #dc2626; }
.text-yellow-400 { color: #fbbf24; }

.bg-green-50 { background-color: #f0fdf4; }
.bg-blue-50 { background-color: #eff6ff; }
.bg-yellow-50 { background-color: #fefce8; }
.bg-gray-50 { background-color: #f9fafb; }

.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.rounded-lg { border-radius: 0.5rem; }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }

.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-4 > * + * { margin-top: 1rem; }

.flex { display: flex; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: 1rem; }

.w-full { width: 100%; }
.max-w-6xl { max-width: 72rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

.p-4 { padding: 1rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }

.border { border: 1px solid #e5e7eb; }
.border-yellow-200 { border-color: #fef3c7; }