:root {
  --bg-main: #FAFAF9;
  --bg-header-footer: #1C1917;
  --color-primary: #7C3AED;
  --color-secondary: #0D9488;
  --bg-card: #FFFFFF;
  --border-main: #E7E5E4;
  --border-hover: #7C3AED;
  --highlight-primary: #F5F3FF;
  --highlight-secondary: #F0FDFA;
  --text-main: #18181B;
  --text-secondary: #71717A;
  --color-success: #047857;
  --bg-warning: #FEF3C7;
  --btn-primary: #7C3AED;
  --btn-primary-hover: #6D28D9;
  --btn-secondary: #FFFFFF;
  --btn-secondary-border: #D6D3D1;
  --border-radius-sm: 0.375rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --transition-speed: 0.3s;
}

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

html {
  font-family: var(--font-main);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  scroll-behavior: smooth;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-speed), background-color var(--transition-speed);
}

a:hover {
  color: var(--btn-primary-hover);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius-md);
}

ul, ol {
  list-style: none;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: var(--spacing-sm);
  z-index: 1000;
  transition: top var(--transition-speed);
}

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

/* Typography */
h1, h2, h3, h4, h5 {
  color: var(--text-main);
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: 2.5rem; font-weight: 800; }
h2 { font-size: 2rem; font-weight: 700; margin-top: var(--spacing-md); }
h3 { font-size: 1.5rem; font-weight: 600; }
p { margin-bottom: var(--spacing-sm); color: var(--text-secondary); }

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

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

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-speed);
  border: 1px solid transparent;
  text-align: center;
}

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

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--btn-primary-hover);
  color: #FFFFFF;
  box-shadow: 0 4px 6px rgba(124, 58, 237, 0.2);
}

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

.btn-secondary:hover, .btn-secondary:focus {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--highlight-primary);
}

/* Header (Mobile Base) */
.site-header {
  background-color: var(--bg-header-footer);
  color: #FFFFFF;
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.brand-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.025em;
}

.brand-logo:hover {
  color: #FFFFFF;
}

.brand-logo span {
  color: var(--color-primary);
}

.main-nav {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.main-nav a {
  color: #D6D3D1;
  font-weight: 500;
}

.main-nav a:hover, .main-nav a:focus {
  color: #FFFFFF;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #FFFFFF;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: var(--spacing-xl) 0;
  background: linear-gradient(135deg, var(--highlight-primary) 0%, var(--bg-main) 100%);
  text-align: center;
}

.hero h1 {
  max-width: 800px;
  margin: 0 auto var(--spacing-sm);
}

.hero p {
  max-width: 600px;
  margin: 0 auto var(--spacing-md);
  font-size: 1.125rem;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* Sections */
.section {
  padding: var(--spacing-lg) 0;
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

/* Warning / Notice Box */
.notice-box {
  background-color: var(--bg-warning);
  border-left: 4px solid var(--color-secondary);
  padding: var(--spacing-md);
  border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
  margin-bottom: var(--spacing-md);
}

.notice-box h3 {
  color: var(--text-main);
  margin-top: 0;
  margin-bottom: var(--spacing-xs);
}

.notice-box p {
  color: var(--text-main);
  margin: 0;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-md);
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-main);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  transition: all var(--transition-speed);
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02);
}

.card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 10px 15px -3px rgba(124, 58, 237, 0.1);
  transform: translateY(-4px);
}

.card-tag {
  display: inline-block;
  background-color: var(--highlight-primary);
  color: var(--color-primary);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  align-self: flex-start;
}

.card h3 {
  margin-bottom: var(--spacing-xs);
  margin-top: 0;
}

.card p {
  flex: 1;
}

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

/* Comparison Table */
.table-wrapper {
  overflow-x: auto;
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-main);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--border-main);
}

th {
  background-color: var(--highlight-primary);
  color: var(--text-main);
  font-weight: 600;
  white-space: nowrap;
}

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

tr:hover td {
  background-color: var(--bg-main);
}

.status-yes {
  color: var(--color-success);
  font-weight: 600;
}

.status-no {
  color: var(--text-secondary);
}

/* Review Page Specifics */
.review-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-main);
  padding: var(--spacing-lg) 0;
}

.review-meta {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  flex-wrap: wrap;
}

.review-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.pros-cons {
  background: var(--bg-main);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--border-main);
}

.pros-cons h3 {
  margin-top: 0;
}

.pros-cons h4 {
  margin-top: var(--spacing-sm);
}

.pros-cons ul {
  padding-left: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.pros-cons li {
  position: relative;
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
}

.pros-cons li::before {
  content: "•";
  color: var(--color-primary);
  position: absolute;
  left: -1rem;
}

/* Guides Previews */
.guide-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.guide-item {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-card);
  border: 1px solid var(--border-main);
  border-radius: var(--border-radius-md);
  color: var(--text-main);
  font-weight: 500;
  transition: all var(--transition-speed);
}

.guide-item:hover {
  background: var(--highlight-primary);
  border-color: var(--border-hover);
  color: var(--color-primary);
  padding-left: calc(var(--spacing-md) + 5px);
}

/* FAQ Accordion */
.accordion {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.accordion-item {
  border: 1px solid var(--border-main);
  border-radius: var(--border-radius-md);
  background: var(--bg-card);
  overflow: hidden;
}

.accordion-header {
  width: 100%;
  text-align: left;
  padding: var(--spacing-sm) var(--spacing-md);
  background: none;
  border: none;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color var(--transition-speed);
}

.accordion-header:hover {
  background-color: var(--highlight-secondary);
}

.accordion-content {
  padding: 0 var(--spacing-md);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-speed) ease-out, padding var(--transition-speed) ease;
}

.accordion-content p {
  margin-bottom: var(--spacing-sm);
}

.accordion-item.active .accordion-content {
  padding: var(--spacing-sm) var(--spacing-md);
  max-height: 1000px;
}

/* Forms */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-main);
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

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

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-main);
  border-radius: var(--border-radius-sm);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
  background-color: var(--bg-main);
}

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

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

/* Footer */
.site-footer {
  background-color: var(--bg-header-footer);
  color: #D6D3D1;
  padding: var(--spacing-lg) 0 var(--spacing-md);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
  color: #FFFFFF;
  margin-bottom: var(--spacing-sm);
  font-size: 1.125rem;
}

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

.footer-col a {
  color: #D6D3D1;
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid #44403C;
  font-size: 0.875rem;
}

/* Cookie Banner */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-main);
  padding: var(--spacing-sm);
  box-shadow: 0 -10px 15px -3px rgba(0, 0, 0, 0.05);
  z-index: 1000;
  display: none;
  flex-direction: column;
  gap: var(--spacing-sm);
}

#cookie-banner.show {
  display: flex;
}

.cookie-content {
  flex: 1;
}

.cookie-content p {
  margin: 0;
}

.cookie-actions {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

/* Filtering & Search */
.filter-bar {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
  background: var(--bg-card);
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-main);
}

.search-input {
  flex: 1;
  min-width: 200px;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-main);
  border-radius: var(--border-radius-sm);
  font-family: inherit;
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--highlight-primary);
}

/* --- NEW DESKTOP SIDEBAR LAYOUT --- */
@media (min-width: 992px) {
  body {
    display: grid;
    grid-template-columns: 280px 1fr;
    grid-template-rows: 1fr auto;
    align-items: start;
  }

  main#main-content {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
    min-height: 100vh; 
  }

  .site-footer {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
  }

  .site-header {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
    height: 100vh;
    padding: var(--spacing-lg) var(--spacing-sm);
    overflow-y: auto;
    border-right: 1px solid #44403C;
    background-color: var(--bg-header-footer);
  }

  .site-header .container {
    flex-direction: column;
    align-items: flex-start;
    padding: 0 var(--spacing-xs);
  }

  .main-nav {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    margin-top: var(--spacing-xl);
    gap: 0;
  }

  .main-nav a {
    width: 100%;
    padding: 0.875rem var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-xs);
  }

  .main-nav a:hover, .main-nav a:focus {
    background-color: rgba(255,255,255,0.05);
    color: #FFFFFF;
  }

  /* Left Align Hero for Side Nav Layout */
  .hero {
    text-align: left;
    padding: var(--spacing-xl) 0;
  }
  
  .hero h1 {
    margin-left: 0;
    margin-right: 0;
  }
  
  .hero p {
    margin-left: 0;
    margin-right: 0;
  }
  
  .hero-actions {
    justify-content: flex-start;
  }

  /* Sticky Review Sidebar */
  .review-content {
    grid-template-columns: 2fr 1fr;
  }
  
  .sidebar {
    position: sticky;
    top: var(--spacing-md);
    align-self: start;
  }

  /* Adjust section headers */
  .section-header {
    text-align: left;
  }
  
  .text-center {
    text-align: left;
  }
}

/* Mobile Adjustments */
@media (max-width: 991px) {
  .main-nav {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--bg-header-footer);
    padding: var(--spacing-md);
    border-top: 1px solid #44403C;
  }
  
  .main-nav.active {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
}

/* Accessibility Focus */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}