:root {
  --color-primary-dark: #0E1217;
  --color-primary-blue: #1F3C88;
  --color-accent-gray: #8A8F98;
  --color-accent-amber: #C28B2C;
  --color-text-primary: #F0F0F0;
  --color-text-secondary: #B8B8B8;
  --color-border: rgba(138, 143, 152, 0.2);
  --color-hover: rgba(31, 60, 136, 0.1);
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Monaco', 'Menlo', monospace;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --transition: all 0.3s ease;
  --transition-fast: all 0.15s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-primary-dark);
  color: var(--color-text-primary);
  line-height: 1.6;
  font-size: 16px;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: 36px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--spacing-sm);
}

p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.text-center {
  text-align: center;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  background: transparent;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(14, 18, 23, 0.95);
  backdrop-filter: blur(10px);
}

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

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 40px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-links a {
  color: var(--color-accent-gray);
  font-size: 14px;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.nav-links a:hover {
  background: var(--color-hover);
  color: var(--color-text-primary);
}

.nav-links a.active {
  color: var(--color-accent-amber);
}

.language-switcher {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-accent-gray);
  font-size: 13px;
}

.language-switcher a {
  padding: 4px 6px;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.language-switcher a:hover {
  background: var(--color-hover);
  color: var(--color-text-primary);
}

.language-switcher a.active {
  color: var(--color-accent-amber);
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.burger span {
  width: 24px;
  height: 2px;
  background: var(--color-accent-gray);
  transition: var(--transition);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--color-primary-dark);
  padding: var(--spacing-2xl) var(--spacing-lg);
  transition: var(--transition);
  z-index: 1001;
}

.mobile-menu.open {
  right: 0;
}

.mobile-menu .nav-links {
  flex-direction: column;
  gap: var(--spacing-md);
}

.mobile-menu .nav-links a {
  font-size: 18px;
}

.menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  z-index: 1000;
  opacity: 0;
  transition: var(--transition);
}

.menu-overlay.active {
  opacity: 1;
}

.close-menu {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: none;
  border: none;
  color: var(--color-accent-gray);
  font-size: 24px;
  cursor: pointer;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, rgba(31, 60, 136, 0.1) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0L30 60M0 30L60 30' stroke='%231F3C88' stroke-width='0.5' opacity='0.1'/%3E%3C/svg%3E");
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero h1 {
  font-size: 56px;
}

.hero .subtitle {
  font-size: 24px;
  color: var(--color-accent-amber);
  margin-bottom: var(--spacing-md);
}

.hero p {
  font-size: 18px;
  max-width: 500px;
  margin: 0 auto var(--spacing-lg);
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  border: none;
}

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

.btn-primary:hover {
  background: var(--color-accent-amber);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--color-accent-gray);
  color: var(--color-accent-gray);
}

.btn-secondary:hover {
  border-color: var(--color-primary-blue);
  color: var(--color-text-primary);
}

section {
  padding: var(--spacing-2xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.personas {
  background: rgba(31, 60, 136, 0.02);
}

.personas-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.persona-card {
  background: rgba(31, 60, 136, 0.05);
  border-left: 2px solid var(--color-primary-blue);
  padding: var(--spacing-md);
  transition: var(--transition);
}

.persona-card:hover {
  background: rgba(31, 60, 136, 0.1);
}

.persona-card .icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent-amber);
}

.persona-card h3 {
  font-size: 18px;
  margin-bottom: var(--spacing-xs);
}

.persona-card p {
  font-size: 14px;
}

.benefits {
  padding: var(--spacing-2xl) 0;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.benefit-item {
  text-align: center;
  padding: var(--spacing-md);
}

.benefit-item .icon {
  width: 32px;
  height: 32px;
  margin: 0 auto var(--spacing-sm);
  color: var(--color-accent-amber);
}

.benefit-item h4 {
  font-size: 16px;
  color: var(--color-text-primary);
}

.cta-section {
  background: rgba(31, 60, 136, 0.05);
  text-align: center;
  padding: var(--spacing-2xl) 0;
}

.cta-section h2 {
  margin-bottom: var(--spacing-lg);
}

.philosophy-block {
  padding: var(--spacing-lg) 0;
  margin-bottom: var(--spacing-lg);
}

.philosophy-block.bordered {
  border-left: 2px solid var(--color-primary-blue);
  padding-left: var(--spacing-lg);
}

.philosophy-block.centered {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

.philosophy-block.centered p {
  font-size: 20px;
}

.philosophy-block.highlight {
  background: rgba(31, 60, 136, 0.1);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
}

.philosophy-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.privacy-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin: var(--spacing-2xl) 0;
}

.privacy-feature {
  display: flex;
  gap: var(--spacing-sm);
  align-items: flex-start;
}

.privacy-feature .icon {
  width: 24px;
  height: 24px;
  color: var(--color-accent-amber);
  flex-shrink: 0;
}

.accordion {
  margin: var(--spacing-lg) 0;
}

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

.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  cursor: pointer;
  transition: var(--transition-fast);
}

.accordion-header:hover {
  color: var(--color-accent-amber);
}

.accordion-header h4 {
  font-size: 16px;
  font-weight: 600;
}

.accordion-header .icon {
  transition: var(--transition);
}

.accordion-item.active .accordion-header {
  color: var(--color-accent-amber);
}

.accordion-item.active .accordion-header .icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-content p {
  padding-bottom: var(--spacing-md);
}

.compliance {
  background: rgba(31, 60, 136, 0.05);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  margin-top: var(--spacing-2xl);
}

.compliance h3 {
  margin-bottom: var(--spacing-sm);
}

.compliance ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.compliance li {
  color: var(--color-text-secondary);
}

.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-2xl) 0;
}

.step {
  text-align: center;
  padding: var(--spacing-md);
  background: rgba(31, 60, 136, 0.05);
  border-radius: var(--radius-lg);
  position: relative;
}

.step::after {
  content: '';
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 2px;
  background: var(--color-primary-blue);
}

.step:last-child::after {
  display: none;
}

.step .number {
  width: 32px;
  height: 32px;
  background: var(--color-primary-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-sm);
  font-weight: 600;
}

.step .icon {
  width: 32px;
  height: 32px;
  margin: 0 auto var(--spacing-sm);
  color: var(--color-accent-amber);
}

.tech-details {
  background: rgba(31, 60, 136, 0.05);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  margin-top: var(--spacing-lg);
}

.tech-details h4 {
  color: var(--color-accent-gray);
  margin-bottom: var(--spacing-sm);
}

.tech-details ul {
  list-style: none;
}

.tech-details li {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-accent-gray);
  padding: var(--spacing-xs) 0;
}

.plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin: var(--spacing-2xl) 0;
}

.plan {
  background: rgba(31, 60, 136, 0.05);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: var(--transition);
}

.plan.featured {
  border: 2px solid var(--color-primary-blue);
  transform: scale(1.05);
}

.plan h3 {
  margin-bottom: var(--spacing-sm);
}

.plan .price {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.plan .price span {
  font-size: 16px;
  color: var(--color-accent-gray);
}

.plan ul {
  list-style: none;
  margin-bottom: var(--spacing-lg);
}

.plan li {
  padding: var(--spacing-xs) 0;
  color: var(--color-text-secondary);
}

.contact-form {
  max-width: 500px;
  margin: var(--spacing-2xl) auto 0;
}

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent-gray);
  margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-accent-gray);
  padding: var(--spacing-xs) 0;
  font-size: 16px;
  color: var(--color-text-primary);
  font-family: var(--font-primary);
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary-blue);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(138, 143, 152, 0.6);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-success {
  display: none;
  text-align: center;
  padding: var(--spacing-lg);
  background: rgba(31, 60, 136, 0.1);
  border-radius: var(--radius-lg);
  margin-top: var(--spacing-md);
}

.form-success.show {
  display: block;
}

.form-honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-error {
  display: none;
  margin-top: 12px;
  color: #b42318;
  text-align: center;
}

.form-error.show {
  display: block;
}

.download-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin: var(--spacing-lg) 0;
}

footer {
  background: rgba(0, 0, 0, 0.3);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

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

.footer-section li {
  padding: var(--spacing-xs) 0;
}

.footer-section a {
  color: var(--color-accent-gray);
  font-size: 14px;
  transition: var(--transition-fast);
}

.footer-section a:hover {
  color: var(--color-text-primary);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: var(--color-accent-gray);
  font-size: 14px;
}

.page-header {
  padding: calc(80px + var(--spacing-2xl)) 0 var(--spacing-2xl);
  text-align: center;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, rgba(31, 60, 136, 0.1) 100%);
}

.page-header .subtitle {
  color: var(--color-accent-amber);
  font-size: 18px;
}

.vpn-diagram {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  margin: var(--spacing-2xl) 0;
}

.diagram {
  background: rgba(31, 60, 136, 0.05);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  text-align: center;
}

.diagram h4 {
  margin-bottom: var(--spacing-md);
}

.diagram-visual {
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-gray);
}

.diagram.unsafe {
  border: 1px solid rgba(194, 139, 44, 0.3);
}

.diagram.safe {
  border: 1px solid var(--color-primary-blue);
}

@media (max-width: 1024px) {
  h1 { font-size: 40px; }
  h2 { font-size: 30px; }
  .hero h1 { font-size: 44px; }
  .personas-grid,
  .benefits-grid,
  .plans { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .step::after { display: none; }
  .plan.featured { transform: none; }
  .footer-content { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .container { padding: 0 var(--spacing-sm); }
  h1 { font-size: 32px; }
  h2 { font-size: 26px; }
  .hero h1 { font-size: 36px; }
  .hero .subtitle { font-size: 18px; }
  .navbar .nav-links,
  .navbar .language-switcher { display: none; }
  .burger { display: flex; }
  .mobile-menu,
  .menu-overlay { display: block; }
  .mobile-menu .nav-links { display: flex; }
  .personas-grid,
  .philosophy-split,
  .privacy-features,
  .steps,
  .vpn-diagram,
  .plans { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
  .philosophy-split { gap: var(--spacing-lg); }
  .compliance ul,
  .download-buttons { flex-direction: column; }
  .compliance ul { gap: var(--spacing-sm); }
  .download-buttons { align-items: center; }
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 28px; }
  .hero h1 { font-size: 30px; }
  .hero .subtitle { font-size: 16px; }
  .benefits-grid { grid-template-columns: 1fr; }
  .btn {
    width: 100%;
    text-align: center;
  }
}