/* Custom styles to complement Tailwind CSS */

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Line clamp utility for text truncation */
.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Custom animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.6s ease-out;
}

/* Reading progress bar */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: #2563eb;
  z-index: 9999;
  transition: width 0.3s ease;
}

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: #2563eb;
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

.back-to-top:hover {
  transform: translateY(-2px);
}

/* Dark mode toggle */
.dark-mode-toggle {
  position: fixed;
  top: 50%;
  right: 30px;
  width: 50px;
  height: 50px;
  background: #1e293b;
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 1000;
  transform: translateY(-50%);
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* Mobile navigation styles */
@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    border-radius: 0 0 12px 12px;
  }
  
  .nav.nav-open {
    display: block;
  }
  
  .nav ul {
    flex-direction: column;
    padding: 20px;
    gap: 8px;
  }
  
  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
}

/* Notification styles */
.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  z-index: 10000;
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.3s ease;
  color: white;
  font-weight: 500;
}

.notification-success {
  background: #10b981;
}

.notification-error {
  background: #ef4444;
}

.notification-info {
  background: #3b82f6;
}

/* FAQ accordion styles */
.faq-answer {
  display: none;
}

/* Tooltip styles */
.tooltip {
  position: absolute;
  background: #1e293b;
  color: white;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 0.875rem;
  white-space: nowrap;
  z-index: 1000;
  pointer-events: none;
}

/* Print styles */
@media print {
  .header,
  .footer,
  .sidebar,
  .comments-section,
  .back-to-top,
  .dark-mode-toggle {
    display: none !important;
  }
}

/* Focus styles for better accessibility */
button:focus,
input:focus,
textarea:focus,
select:focus,
a:focus {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
}

/* Disable focus outline for mouse users */
.js-focus-visible :focus:not(.focus-visible) {
  outline: none;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}