/*
  styles.css
  This stylesheet defines the core styles for the VPN Guide Pro affiliate site. The design
  is modern and clean, using a neutral colour palette with a bright accent colour to
  encourage action. The layout is mobile‑first and fully responsive, making use of
  CSS Grid and Flexbox. Comment blocks document key sections for maintainability.
*/

/* Base variables */
:root {
  --color-bg: #f7f9fc;
  --color-primary: #0d47a1; /* deep blue */
  --color-accent: #1976d2; /* bright blue */
  --color-muted: #64748b;
  --color-text: #1f2937;
  --color-light: #ffffff;
  --color-border: #e5e7eb;
  --color-success: #43a047;
  --max-width: 1200px;
  --radius: 12px;
  --transition: 0.2s ease-in-out;
  --shadow: 0 4px 12px rgba(0,0,0,0.05);
  --header-height: 70px;
}

/* Global resets */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary); }
h1, h2, h3, h4, h5, h6 { font-weight: 600; margin-bottom: 0.75rem; color: var(--color-primary); }
p { margin-bottom: 1rem; }
ul { list-style: disc inside; margin-bottom: 1rem; }

/* Layout utility classes */
.container {
  width: 100%;
  max-width: var(--max-width);
  padding: 0 1.25rem;
  margin-left: auto;
  margin-right: auto;
}
.grid {
  display: grid;
  gap: 1.5rem;
}
/* Two column layout for wide screens */
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* Header navigation */
header {
  position: sticky;
  top: 0;
  background-color: var(--color-light);
  box-shadow: var(--shadow);
  z-index: 100;
}
header .nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}
header .logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}
/* Navigation menu */
.menu {
  display: flex;
  gap: 1rem;
}
.menu a {
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  font-weight: 500;
}
.menu a:hover {
  background-color: var(--color-primary);
  color: var(--color-light);
}
/* Mobile menu toggle */
.menu-toggle {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}
.menu-toggle span {
  width: 24px;
  height: 3px;
  background: var(--color-primary);
  transition: var(--transition);
}

/* Hero section */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 1rem;
  background: linear-gradient(135deg, #e0f2fe, #f0f7ff);
  border-bottom: 1px solid var(--color-border);
}
.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 700px;
  margin-bottom: 1.5rem;
}
.hero .hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;

}
.btn,
.cta-button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  transition: background-color var(--transition), transform var(--transition);
  cursor: pointer;
}
.btn-primary { background-color: var(--color-accent); color: var(--color-light); }
.btn-primary:hover { background-color: var(--color-primary); transform: translateY(-2px); }
.btn-secondary { background-color: var(--color-primary); color: var(--color-light); }
.btn-secondary:hover { background-color: var(--color-accent); transform: translateY(-2px); }

.cta-button {

  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  background-color: var(--color-accent);
  color: var(--color-light);
  text-decoration: none;
  text-align: center;
  transition: background-color var(--transition), transform var(--transition);
  cursor: pointer;
}
.cta-button:hover { background-color: var(--color-primary); transform: translateY(-2px); }
.cta-button.featured {
  flex-direction: column;
  gap: 0.25rem;
}
.cta-button.featured .guarantee {
  font-size: 0.85rem;
  opacity: 0.9;
}
@media (min-width: 600px) {
  .cta-button.featured { flex-direction: row; }
=======
  background-color: var(--color-accent);
  color: var(--color-light);
}
.cta-button:hover {
  background-color: var(--color-primary);
  transform: translateY(-2px)
}

/* Cards */
.card,
.vpn-card {
  background-color: var(--color-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover,
.vpn-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}
.card h3 { margin-top: 0; color: var(--color-primary); }

/* Product grid on home */
.product-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

/* Upcoming VPN grid layout */
.vpn-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}
.product-card img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}
.product-card .rating {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
}
.rating svg {
  width: 18px;
  height: 18px;
  fill: #fbbf24; /* amber */
  margin-right: 3px;
}
.rating .inactive { fill: #cfd8dc; }

/* Comparison table */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.comparison-table th, .comparison-table td {
  border: 1px solid var(--color-border);
  padding: 0.75rem;
  text-align: left;
}
.comparison-table th {
  background-color: #e9eff8;
  color: var(--color-primary);
}
.comparison-table tbody tr:nth-child(even) {
  background-color: #f5f9ff;
}
.comparison-table a {
  color: var(--color-accent);
  font-weight: 600;
}

/* Responsive comparison table wrapper */
.table-wrapper {
  overflow-x: auto;
  width: 100%;
}

/* Allow CTA buttons in tables to stack nicely on small screens */
.table-cta .btn {
  display: inline-block;
  margin-bottom: 0.4rem;
}

/* Badge used to highlight top picks in comparison tables */
.badge-top,
.vpn-badge {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-light);
  padding: 0.15rem 0.5rem;
  font-size: 0.75rem;
  border-radius: 4px;
  margin-left: 0.3rem;
}

/* Highlight box for limited‑time deals on review pages */
.deal-highlight {
  background-color: #fff7ed;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
  text-align: left;
}
.deal-highlight p {
  margin-bottom: 0.75rem;
  color: var(--color-primary);
  font-weight: 600;
}

/* Deals grid */
.deals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}
.deal-card h3 {
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}
.deal-card p {
  margin-bottom: 1rem;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  vertical-align: middle;
}
.badge-best {
  background-color: var(--color-success);
  color: var(--color-light);
  margin-left: 0.3rem;
}

/* Review page */
.review-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}
.review-header h1 {
  font-size: 2rem;
}
.review-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}
.review-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}
.pros-cons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.pros, .cons {
  background-color: #eef6ff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
}
.pros h4, .cons h4 {
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}
.pros ul, .cons ul {
  margin-left: 1rem;
  list-style: disc;
}


/* FAQ section */
.faq {
  margin-top: 3rem;
  padding: 2rem 0;
  background-color: var(--color-light);
}
.faq h2 {
  text-align: center;
  margin-bottom: 1.5rem;
}
.faq-item + .faq-item {
  margin-top: 1rem;
}
.faq-item h3 {
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

/* Newsletter form */
.newsletter {
  background-color: #eef2ff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow);
}
.newsletter form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 1rem;
}
.newsletter input[type="email"] {
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  flex: 1 1 250px;
}
.newsletter button {
  padding: 0.6rem 1rem;
  border: none;
  border-radius: var(--radius);
  background-color: var(--color-accent);
  color: var(--color-light);
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition);
}
.newsletter button:hover { background-color: var(--color-primary); }

/* Footer */
footer {
  margin-top: 2rem;
  padding: 1.5rem;
  background-color: var(--color-light);
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-muted);
  font-size: 0.9rem;
}
footer a { color: var(--color-accent); }

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 1.5rem;
  background-color: var(--color-accent);
  color: var(--color-light);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}
.back-to-top svg {
  width: 20px;
  height: 20px;
  fill: var(--color-light);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #e5f0ff;
  padding: 1rem 1.5rem;
  box-shadow: 0 -4px 10px rgba(0,0,0,0.05);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  font-size: 0.9rem;
  z-index: 200;
}
.cookie-banner .btn {
  align-self: center;
}

/* Form styles (contact and search) */
form {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
form input, form textarea {
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
}
form textarea { resize: vertical; min-height: 150px; }
form button {
  align-self: flex-start;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius);
  background-color: var(--color-accent);
  color: var(--color-light);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition);
}
form button:hover { background-color: var(--color-primary); }

/* Blog list */
.blog-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.blog-card {
  background-color: var(--color-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.06);
}
.blog-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}
.blog-card p {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}
.blog-card .read-more {
  font-weight: 600;
  color: var(--color-accent);
  display: inline-block;
}

/* Breadcrumb */
.breadcrumb {
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.breadcrumb ol {
  list-style: none;
  display: flex;
  gap: 0.5rem;
}
.breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--color-muted);
}
.breadcrumb a {
  color: var(--color-muted);
}
.breadcrumb a:hover {
  color: var(--color-primary);
}

/* Media queries */
@media (min-width: 768px) {
  .hero h1 { font-size: 2.6rem; }
  .hero p { font-size: 1.2rem; }
}

@media (max-width: 768px) {
  .menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-light);
    flex-direction: column;
    gap: 0;
    display: none;
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
  }
  .menu.open { display: flex; }
  .menu a { padding: 0.75rem 0; }
  .menu-toggle { display: flex; }
}

@media (max-width: 768px) {
  .product-grid,
  .vpn-grid {
    grid-template-columns: 1fr;
  }

  .comparison-table {
    display: block;
    overflow-x: auto;
  }
}