/* ===== CSS Variables & Base Setup ===== */
:root {
  /* Core Brand Colors */
  --primary-color: #4a7c59;
  --primary-light: #6b9c7a;
  --primary-dark: #3d5f4a;
  --secondary-color: #8b7355;
  --secondary-light: #a68a6f;
  --secondary-dark: #6b5b44;
  
  /* Background Colors */
  --bg-primary: #fafafa;
  --bg-section-white: #ffffff;
  --bg-section-light: #f8f9fa;
  --bg-section-green: #e8f5e8;
  --footer-bg: #2d3748;
  
  /* Text Colors */
  --text-primary: #2d3748;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --text-light: #ffffff;
  --text-on-primary: #ffffff;
  --text-on-secondary: #ffffff;
  
  /* Borders & Shadows */
  --border-color: #e2e8f0;
  --border-light: #f7fafc;
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  /* Spacing Scale */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  --font-heading: 'Poppins', var(--font-sans);
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.125rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
  line-height: 1.7;
}

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

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* ===== Layout Components ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-alt {
  background-color: var(--bg-section-light);
}

.section-green {
  background-color: var(--bg-section-green);
}

/* ===== Cards ===== */
.card {
  background: var(--bg-section-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
  transform: translateY(-2px);
}

.card-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-light);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.card-subtitle {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
}

.card-body {
  color: var(--text-secondary);
}

.card-footer {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-light);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--text-on-primary);
  border-color: var(--primary-color);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--text-on-primary);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: var(--text-on-secondary);
  border-color: var(--secondary-color);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--secondary-dark);
  border-color: var(--secondary-dark);
  color: var(--text-on-secondary);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--primary-color);
  color: var(--text-on-primary);
  text-decoration: none;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.75rem;
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
}

/* ===== Forms ===== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.875rem;
}

.form-control {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-section-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(74, 124, 89, 0.1);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
  background-position: right var(--spacing-sm) center;
  background-repeat: no-repeat;
  background-size: 1rem;
  padding-right: 2.5rem;
}

/* ===== Header Components ===== */
.header {
  background-color: var(--bg-section-white);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.navbar {
  padding: var(--spacing-lg) 0;
}

.nav-brand {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.nav-brand:hover {
  color: var(--primary-dark);
  text-decoration: none;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary-color);
  background-color: var(--bg-section-light);
  text-decoration: none;
}

.nav-link.active {
  color: var(--primary-color);
  background-color: var(--bg-section-green);
}

/* ===== Footer ===== */
.footer {
  background-color: var(--footer-bg);
  color: var(--text-light);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer h4 {
  color: var(--text-light);
  margin-bottom: var(--spacing-lg);
}

.footer a {
  color: #cbd5e0;
  transition: color var(--transition-fast);
}

.footer a:hover {
  color: var(--text-light);
  text-decoration: none;
}

.footer-bottom {
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid #4a5568;
  text-align: center;
  color: #a0aec0;
}

/* ===== Utility Classes ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }

.bg-white { background-color: var(--bg-section-white); }
.bg-light { background-color: var(--bg-section-light); }
.bg-green { background-color: var(--bg-section-green); }
.bg-primary { background-color: var(--primary-color); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  :root {
    --spacing-3xl: 2.5rem;
  }
  
  .container {
    padding: 0 var(--spacing-md);
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.25rem; }
  
  .section {
    padding: var(--spacing-2xl) 0;
  }
  
  .card {
    padding: var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
  
  .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.8125rem;
  }
  
  .card {
    padding: var(--spacing-md);
  }
}

/* ===== Focus States for Accessibility ===== */
.btn:focus,
.form-control:focus,
.nav-link:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* ===== Loading & Interactive States ===== */
.loading {
  opacity: 0.7;
  pointer-events: none;
}

.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== Polish Language Specific ===== */
[lang="pl"] {
  font-feature-settings: "kern" 1, "liga" 1;
}

/* ===== Print Styles ===== */
@media print {
  .btn,
  .nav-link,
  a {
    text-decoration: none;
    color: inherit;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #000;
  }
  
  .section {
    padding: 1rem 0;
  }
}


/* Cookie Banner Additional Styles for Tailwind */
.cookie-banner-hover-effect:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

@media (prefers-reduced-motion: reduce) {
    .cookie-banner-hover-effect:hover {
        transform: none;
    }
}