:root {
  --color-primary-bg: #F4F7F6;
  --color-header-footer: #1C3126; /* Dark forest green */
  --color-brand: #2E7D32;
  --color-accent: #FF8F00;
  --color-card-bg: #E8F5E9; /* Light green tint for cards */
  --color-border: #A5D6A7; /* Light green border */
  --color-hover-border: #2E7D32;
  --color-highlight: #C8E6C9;
  --color-warning: #FFF3E0;
  --color-text: #1B2620; /* Dark, highly readable green-gray */
  --color-text-secondary: #3E5045;
  --color-success: #388E3C;
  
  --color-btn-primary: #2E7D32;
  --color-btn-primary-hover: #1B5E20;
  --color-btn-secondary: #FFFFFF;
  --color-btn-secondary-border: #A5D6A7;
  --color-btn-secondary-hover: #E8F5E9;

  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  --transition: all 0.3s ease;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--color-primary-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-brand);
  color: #fff;
  padding: 8px;
  z-index: 100;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}

/* Header & Nav */
.site-header {
  background-color: var(--color-header-footer);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-md);
  border-bottom: 2px solid var(--color-brand);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
}

.brand-logo:hover {
  text-decoration: none;
  color: var(--color-accent);
}

.brand-icon {
  color: var(--color-accent);
  transition: var(--transition);
}

.brand-logo:hover .brand-icon {
  color: #fff;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  color: #C8E6C9;
  font-weight: 500;
}

.nav-links a:hover {
  color: #fff;
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.25rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  border: 1px solid transparent;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-btn-primary);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--color-btn-primary-hover);
  color: #fff;
}

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

.btn-secondary:hover {
  background-color: var(--color-btn-secondary-hover);
}

/* Container & Sections */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.section {
  padding: 4rem 1rem;
}

.section-alt {
  background-color: var(--color-card-bg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: 2.25rem;
  color: var(--color-text);
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  max-width: 700px;
  margin: 0 auto;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.card-category {
  font-size: 0.875rem;
  color: var(--color-brand);
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 1rem;
}

.card-body {
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-footer {
  margin-top: auto;
  display: flex;
  gap: 1rem;
}

/* Notice / Warning */
.notice-box {
  background-color: var(--color-warning);
  border-left: 4px solid var(--color-accent);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  margin-bottom: 2rem;
}

.notice-box h3 {
  color: #E65100;
  margin-bottom: 0.5rem;
}

.notice-box p {
  color: #E65100;
}

/* Highlights */
.highlight-box {
  background-color: var(--color-highlight);
  border: 1px solid var(--color-brand);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  margin-bottom: 2rem;
}

/* Comparison Table */
.table-responsive {
  overflow-x: auto;
  margin-bottom: 2rem;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.comparison-table th, 
.comparison-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table th {
  background-color: var(--color-primary-bg);
  font-weight: 600;
  color: var(--color-text);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table tr:hover td {
  background-color: var(--color-highlight);
}

.check-icon {
  color: var(--color-success);
  font-weight: bold;
}
.cross-icon {
  color: var(--color-text-secondary);
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-main);
  transition: border-color 0.2s;
  background-color: #FFFFFF;
  color: var(--color-text);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px var(--color-highlight);
}

/* Accordion */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-card-bg);
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  padding: 1rem 1.5rem;
  text-align: left;
  background: none;
  border: none;
  font-size: 1.125rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text);
}

.accordion-header:hover {
  background-color: var(--color-primary-bg);
}

.accordion-content {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  background: var(--color-card-bg);
}

.accordion-item.active .accordion-content {
  padding: 1rem 1.5rem;
  max-height: 500px; /* arbitrary max height for animation */
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-card-bg);
  box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  z-index: 9999;
  display: none;
  border-top: 2px solid var(--color-border);
}

.cookie-banner.show {
  display: block;
}

.cookie-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cookie-text {
  flex: 1 1 300px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.cookie-actions {
  display: flex;
  gap: 0.5rem;
}

/* Footer */
.site-footer {
  background-color: var(--color-header-footer);
  color: #C8E6C9;
  padding: 3rem 1rem 1.5rem;
  border-top: 4px solid var(--color-brand);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  border-bottom: 1px solid var(--color-brand);
  padding-bottom: 2rem;
  margin-bottom: 1.5rem;
}

.footer-col h4 {
  color: #fff;
  margin-bottom: 1rem;
  font-size: 1.125rem;
}

.footer-col ul {
  list-style: none;
}

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

.footer-col a {
  color: #A5D6A7;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  text-align: center;
  font-size: 0.875rem;
}

.footer-bottom address {
  font-style: normal;
  margin-top: 0.5rem;
}

/* Layout Utilities */
.hero-section {
  text-align: center;
  padding: 5rem 1rem;
  background: linear-gradient(180deg, var(--color-highlight) 0%, var(--color-primary-bg) 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-section h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero-section p {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 800px;
  margin: 0 auto 2rem;
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-card-bg);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.article-content h2 {
  margin: 2rem 0 1rem;
}

.article-content h3 {
  margin: 1.5rem 0 0.5rem;
}

.article-content p, .article-content ul {
  margin-bottom: 1.25rem;
}

.article-content ul {
  padding-left: 1.5rem;
}

/* Tool Filter */
.filter-bar {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  align-items: center;
  flex-wrap: wrap;
}
.filter-bar input {
  max-width: 300px;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  
  .main-nav {
    display: none;
    width: 100%;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--color-header-footer);
    flex-direction: column;
    padding: 1rem;
    box-shadow: var(--shadow-md);
    border-bottom: 2px solid var(--color-brand);
  }

  .main-nav.active {
    display: flex;
  }

  .nav-links {
    flex-direction: column;
    width: 100%;
  }
  
  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 0.5rem 0;
  }

  .header-container {
    flex-wrap: wrap;
  }
  
  .hero-section h1 {
    font-size: 2rem;
  }
  
  .cookie-actions {
    width: 100%;
    flex-direction: column;
  }
}