@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap");

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

/* CSS Variables */
:root {
  --primary-blue: #007bff;
  --creative-green: #28a745;
  --reliable-dark: #343a40;
  --light-gray: #f8f9fa;
  --white: #ffffff;
  --dark-bg: #1a1d23;
  --card-bg: #2a2d35;
  --text-primary: #f8f9fa;
  --text-secondary: #b8bcc4;
  --gradient-1: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
  --gradient-2: linear-gradient(135deg, #28a745 0%, #1e7e34 100%);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Styles */
body {
  font-family: "Inter", sans-serif;
  background-color: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}
h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}
h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

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

a:hover {
  color: #0056b3;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Particles Background */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* Navigation */
.navbar {
  background: var(--reliable-dark);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-blue);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--white);
  margin: 3px 0;
  transition: var(--transition);
}

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

.nav-menu a {
  color: var(--text-primary);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
  background: var(--primary-blue);
  color: var(--white);
}

/* Hero Section */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 4rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  min-height: 80vh;
}

.hero-content h1 {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
}

.hero-content p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-image img {
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  transform: perspective(1000px) rotateY(-5deg);
  transition: var(--transition);
}

.hero-image img:hover {
  transform: perspective(1000px) rotateY(0deg) scale(1.02);
}

/* Disclaimer Box */
.disclaimer-box {
  background: rgba(255, 193, 7, 0.1);
  border-left: 4px solid #ffc107;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  margin: 2rem 0;
}

.disclaimer-box strong {
  color: #ffc107;
}

.disclaimer-box a {
  color: var(--primary-blue);
  text-decoration: underline;
}

/* Overview Section */
.overview {
  padding: 4rem 0;
  background: var(--card-bg);
}

.overview h2 {
  text-align: center;
  margin-bottom: 2rem;
}

.overview p {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3rem;
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: var(--dark-bg);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-blue);
}

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

.feature-card h3 {
  color: var(--primary-blue);
  margin-bottom: 0.75rem;
}

/* Guide Section */
.guide {
  padding: 4rem 0;
}

.guide h2 {
  text-align: center;
  margin-bottom: 2rem;
}

.guide img {
  margin: 2rem auto;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
}

.setup-steps {
  max-width: 800px;
  margin: 2rem auto;
  padding-left: 2rem;
}

.setup-steps li {
  margin-bottom: 1.5rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.setup-steps strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 0.5rem;
}

.guide-note {
  background: rgba(40, 167, 69, 0.1);
  border-left: 4px solid var(--creative-green);
  padding: 1rem 1.5rem;
  border-radius: 8px;
  margin: 2rem auto;
  max-width: 800px;
}

/* Comparison Section */
.comparison {
  padding: 4rem 0;
  background: var(--card-bg);
}

.comparison h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--dark-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.comparison-table thead {
  background: var(--primary-blue);
}

.comparison-table th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--white);
}

.comparison-table td {
  padding: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison-table tbody tr:hover {
  background: rgba(0, 123, 255, 0.1);
}

.table-note {
  text-align: center;
  font-style: italic;
  color: var(--text-secondary);
  margin-top: 1rem;
}

/* Reviews Section */
.reviews {
  padding: 4rem 0;
}

.reviews h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.reviews-carousel {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.review-card {
  background: var(--card-bg);
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  display: none;
  animation: fadeIn 0.5s ease-in;
}

.review-card.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.stars {
  color: #ffc107;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.review-card p {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.reviewer {
  font-weight: 600;
  color: var(--primary-blue);
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: var(--transition);
}

.dot.active {
  background: var(--primary-blue);
  transform: scale(1.3);
}

/* Contribution Section */
.contribution {
  padding: 4rem 0;
  background: var(--card-bg);
}

.contribution h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.contribution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.contribution-card {
  background: var(--dark-bg);
  padding: 2rem;
  border-radius: 16px;
  text-align: center;
  transition: var(--transition);
  border: 2px solid transparent;
  display: block;
  color: var(--text-primary);
}

.contribution-card:hover {
  transform: translateY(-8px);
  border-color: var(--creative-green);
  box-shadow: var(--shadow-lg);
}

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

.contribution-card h3 {
  color: var(--creative-green);
  margin-bottom: 0.75rem;
}

/* Page Header */
.page-header {
  padding: 4rem 0 2rem;
  text-align: center;
}

.page-header h1 {
  margin-bottom: 1rem;
}

.page-header p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Content Section */
.content-section {
  padding: 2rem 0 4rem;
}

.content-section img {
  margin: 2rem auto;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
}

.content-section h2 {
  margin-top: 3rem;
  margin-bottom: 1.5rem;
}

.content-section h3 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--primary-blue);
}

.content-section p {
  margin-bottom: 1.5rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.content-section ul,
.content-section ol {
  margin-bottom: 2rem;
  padding-left: 2rem;
}

.content-section li {
  margin-bottom: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.tips-list li,
.privacy-list li {
  position: relative;
  padding-left: 1.5rem;
}

.tips-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--creative-green);
  font-weight: bold;
}

.info-box {
  background: rgba(0, 123, 255, 0.1);
  border-left: 4px solid var(--primary-blue);
  padding: 1.5rem;
  border-radius: 8px;
  margin: 2rem 0;
}

.info-box h3 {
  margin-top: 0;
  margin-bottom: 1rem;
}

/* FAQ Section */
.faq-section {
  padding: 2rem 0 4rem;
}

.faq-accordion {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card-bg);
  margin-bottom: 1rem;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  padding: 1.5rem;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.125rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.faq-question:hover {
  background: rgba(0, 123, 255, 0.1);
}

.faq-icon {
  font-size: 1.5rem;
  color: var(--primary-blue);
  transition: var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 1000px;
}

.faq-answer p {
  padding: 0 1.5rem 1.5rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Blogs Section */
.blogs-section {
  padding: 2rem 0 4rem;
}

.blogs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.blog-card {
  background: var(--card-bg);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.blog-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.blog-content {
  padding: 1.5rem;
}

.blog-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.blog-date {
  color: var(--text-secondary);
}

.blog-category {
  color: var(--primary-blue);
  font-weight: 600;
}

.blog-card h2 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  line-height: 1.4;
}

.blog-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.read-more-btn {
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.read-more-btn:hover {
  background: #0056b3;
  transform: translateX(4px);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  z-index: 2000;
  overflow-y: auto;
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.modal-content {
  background: var(--card-bg);
  max-width: 900px;
  width: 100%;
  border-radius: 16px;
  padding: 3rem;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 2rem;
  cursor: pointer;
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--primary-blue);
  transform: rotate(90deg);
}

#modalBody h2 {
  margin-bottom: 1rem;
}

#modalBody p {
  margin-bottom: 1.5rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Security Grid */
.security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.security-card {
  background: var(--dark-bg);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

.security-card:hover {
  border-color: var(--creative-green);
  transform: translateY(-4px);
}

.security-card h3 {
  margin-bottom: 1rem;
  font-size: 1.125rem;
}

/* Footer */
footer {
  background: var(--reliable-dark);
  padding: 3rem 0 1rem;
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  color: var(--primary-blue);
  margin-bottom: 1rem;
}

.footer-section p {
  color: var(--text-secondary);
  line-height: 1.6;
}

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

.footer-section li {
  margin-bottom: 0.75rem;
}

.footer-section a {
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-section a:hover {
  color: var(--primary-blue);
  padding-left: 4px;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--reliable-dark);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .nav-menu.active {
    max-height: 400px;
  }

  .nav-menu li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-menu a {
    display: block;
    padding: 1rem 1.5rem;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 2rem 1.5rem;
    min-height: auto;
  }

  .hero-image {
    order: -1;
  }

  .features-grid,
  .contribution-grid,
  .security-grid {
    grid-template-columns: 1fr;
  }

  .comparison-table {
    font-size: 0.875rem;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 0.75rem 0.5rem;
  }

  .blogs-grid {
    grid-template-columns: 1fr;
  }

  .modal-content {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.75rem;
  }
  h2 {
    font-size: 1.5rem;
  }
  h3 {
    font-size: 1.25rem;
  }

  .hero-content p {
    font-size: 1rem;
  }

  .feature-card,
  .contribution-card,
  .security-card {
    padding: 1.5rem;
  }

  .review-card {
    padding: 1.5rem;
  }
}