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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: #0a0a0f;
  color: #ffffff;
  min-height: 100vh;
}

/* Navigation */
.navigation {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid rgba(0, 255, 255, 0.2);
  z-index: 1000;
  padding: 0 20px;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-size: 24px;
  font-weight: bold;
  letter-spacing: 2px;
}

.logo-retro {
  color: #ff6b35;
  text-shadow: 0 0 10px rgba(255, 107, 53, 0.8);
}

.logo-notes {
  color: #00ffff;
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.8);
}

.nav-links {
  display: flex;
  gap: 30px;
  align-items: center;
}

.nav-link {
  color: #b0b0b0;
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: #ffffff;
  background: rgba(0, 255, 255, 0.1);
}

.nav-link.active {
  color: #00ffff;
  background: rgba(0, 255, 255, 0.15);
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.4);
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.8);
}

/* Main Content */
.main-content {
  padding-top: 80px;
  padding-bottom: 40px;
  min-height: calc(100vh - 80px);
}

.page {
  display: none;
}

.page.active {
  display: block;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* Hero Section */
.hero-section {
  text-align: center;
  padding: 60px 20px;
  margin-bottom: 80px;
  background: linear-gradient(135deg, rgba(0, 255, 255, 0.05) 0%, rgba(255, 107, 53, 0.05) 100%);
  border-radius: 20px;
  border: 2px solid rgba(0, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 255, 255, 0.1) 0%, transparent 70%);
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
}

.hero-title {
  font-size: 72px;
  font-weight: bold;
  letter-spacing: 8px;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.title-retro {
  color: #ff6b35;
  text-shadow: 0 0 20px rgba(255, 107, 53, 0.8), 0 0 40px rgba(255, 107, 53, 0.4);
}

.title-notes {
  color: #00ffff;
  text-shadow: 0 0 20px rgba(0, 255, 255, 0.8), 0 0 40px rgba(0, 255, 255, 0.4);
}

.hero-subtitle {
  font-size: 32px;
  color: #b0b0b0;
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
}

.hero-description {
  font-size: 20px;
  color: #e0e0e0;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

/* Features Section */
.features-section {
  margin-bottom: 80px;
}

.section-title {
  font-size: 48px;
  color: #00ffff;
  text-shadow: 0 0 15px rgba(0, 255, 255, 0.6);
  margin-bottom: 50px;
  text-align: center;
  letter-spacing: 3px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.feature-card {
  background: rgba(20, 20, 30, 0.8);
  border: 2px solid rgba(0, 255, 255, 0.2);
  border-radius: 16px;
  padding: 30px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
  transition: left 0.5s ease;
}

.feature-card:hover::before {
  left: 100%;
}

.feature-card:hover {
  border-color: rgba(0, 255, 255, 0.6);
  box-shadow: 0 0 25px rgba(0, 255, 255, 0.3);
  transform: translateY(-5px);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.feature-title {
  font-size: 24px;
  color: #00ffff;
  margin-bottom: 15px;
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.feature-description {
  color: #b0b0b0;
  line-height: 1.6;
  font-size: 16px;
}

/* About Section */
.about-section {
  background: rgba(20, 20, 30, 0.6);
  border: 2px solid rgba(255, 107, 53, 0.2);
  border-radius: 16px;
  padding: 50px;
}

.about-content {
  color: #e0e0e0;
  line-height: 1.8;
  font-size: 18px;
}

.about-content p {
  margin-bottom: 20px;
}

.about-content p:last-child {
  margin-bottom: 0;
}

/* Privacy Page */
.privacy-title {
  font-size: 42px;
  color: #00ffff;
  text-shadow: 0 0 15px rgba(0, 255, 255, 0.6);
  margin-bottom: 40px;
  text-align: center;
  letter-spacing: 2px;
}

.privacy-content {
  background: rgba(20, 20, 30, 0.8);
  border: 2px solid rgba(0, 255, 255, 0.2);
  border-radius: 16px;
  padding: 50px;
  color: #e0e0e0;
  line-height: 1.8;
}

.privacy-content h2 {
  color: #ff6b35;
  font-size: 28px;
  margin-top: 40px;
  margin-bottom: 20px;
  text-shadow: 0 0 10px rgba(255, 107, 53, 0.5);
}

.privacy-content h2:first-of-type {
  margin-top: 0;
}

.privacy-content p {
  margin-bottom: 20px;
  font-size: 16px;
}

.privacy-content ul {
  margin-left: 30px;
  margin-bottom: 20px;
}

.privacy-content li {
  margin-bottom: 10px;
  font-size: 16px;
}

.privacy-content strong {
  color: #00ffff;
}

.privacy-footer {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(0, 255, 255, 0.2);
  color: #b0b0b0;
  font-size: 14px;
  font-style: italic;
}

/* Support Page */
.support-title {
  font-size: 42px;
  color: #00ffff;
  text-shadow: 0 0 15px rgba(0, 255, 255, 0.6);
  margin-bottom: 20px;
  text-align: center;
  letter-spacing: 2px;
}

.support-subtitle {
  font-size: 18px;
  color: #b0b0b0;
  text-align: center;
  margin-bottom: 50px;
  line-height: 1.6;
}

.support-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 40px;
}

.support-info {
  background: rgba(20, 20, 30, 0.8);
  border: 2px solid rgba(255, 107, 53, 0.2);
  border-radius: 16px;
  padding: 30px;
  height: fit-content;
}

.support-info h2 {
  color: #ff6b35;
  font-size: 24px;
  margin-bottom: 20px;
  text-shadow: 0 0 10px rgba(255, 107, 53, 0.5);
}

.support-info p {
  color: #e0e0e0;
  line-height: 1.8;
  margin-bottom: 30px;
  font-size: 16px;
}

.contact-info {
  margin-top: 30px;
}

.contact-item {
  margin-bottom: 15px;
}

.contact-label {
  color: #b0b0b0;
  font-weight: 500;
  display: block;
  margin-bottom: 5px;
}

.contact-link {
  color: #00ffff;
  text-decoration: none;
  transition: all 0.3s ease;
  text-shadow: 0 0 5px rgba(0, 255, 255, 0.3);
}

.contact-link:hover {
  color: #ffffff;
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.8);
}

/* Form Styles */
.support-form {
  background: rgba(20, 20, 30, 0.8);
  border: 2px solid rgba(0, 255, 255, 0.2);
  border-radius: 16px;
  padding: 40px;
}

.form-group {
  margin-bottom: 25px;
}

.form-label {
  display: block;
  color: #00ffff;
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 8px;
  text-shadow: 0 0 5px rgba(0, 255, 255, 0.3);
}

.required {
  color: #ff6b35;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(10, 10, 15, 0.8);
  border: 2px solid rgba(0, 255, 255, 0.2);
  border-radius: 8px;
  color: #ffffff;
  font-size: 16px;
  font-family: inherit;
  transition: all 0.3s ease;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: rgba(0, 255, 255, 0.6);
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #666;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.submit-button {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, rgba(0, 255, 255, 0.2) 0%, rgba(0, 255, 255, 0.1) 100%);
  border: 2px solid rgba(0, 255, 255, 0.6);
  border-radius: 8px;
  color: #00ffff;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.8);
  letter-spacing: 1px;
}

.submit-button:hover {
  background: linear-gradient(135deg, rgba(0, 255, 255, 0.3) 0%, rgba(0, 255, 255, 0.2) 100%);
  box-shadow: 0 0 25px rgba(0, 255, 255, 0.5);
  transform: translateY(-2px);
}

.submit-button:active {
  transform: translateY(0);
}

.success-message {
  margin-top: 20px;
  padding: 15px;
  background: rgba(0, 255, 0, 0.1);
  border: 2px solid rgba(0, 255, 0, 0.4);
  border-radius: 8px;
  color: #00ff00;
  text-align: center;
  font-size: 16px;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive Design */
@media (max-width: 968px) {
  .support-content {
    grid-template-columns: 1fr;
  }

  .support-form {
    padding: 30px 20px;
  }
}

@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    height: auto;
    padding: 15px 0;
  }

  .nav-links {
    flex-direction: column;
    gap: 15px;
    width: 100%;
  }

  .nav-link {
    width: 100%;
    text-align: center;
  }

  .hero-title {
    font-size: 48px;
    letter-spacing: 4px;
  }

  .hero-subtitle {
    font-size: 24px;
  }

  .hero-description {
    font-size: 18px;
  }

  .section-title {
    font-size: 36px;
  }

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

  .about-section {
    padding: 30px 20px;
  }

  .privacy-title,
  .support-title {
    font-size: 32px;
  }

  .privacy-content {
    padding: 30px 20px;
  }

  .privacy-content h2 {
    font-size: 24px;
  }
}