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

@media (max-width: 768px) {
  .navbar nav,
  .nav-container { padding: 0 1rem;}



  /* Hamburger styling */
  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    transition: var(--transition);
  }
  .menu-toggle:hover,
  .menu-toggle:focus { transform: scale(1.05); }
  .menu-toggle::before,
  .menu-toggle::after,
  .menu-toggle span { width: 26px; height: 2.5px; border-radius: 2px; }
  .menu-toggle::before { top: 13px; }
  .menu-toggle span { top: 20.5px; }
  .menu-toggle::after { top: 28px; }
  .menu-toggle.active::before { top: 20.5px; }
  .menu-toggle.active::after { top: 20.5px; }

  /* Side drawer menu */
  .navbar ul {
    display: none;
    flex-direction: column;
    gap: 0.75rem;
    padding: 4rem 1.5rem 2rem;
    background: rgba(101, 71, 59, 0.95);
    backdrop-filter: blur(20px);
    position: fixed;
    top: 0;
    right: 0;
    width: 70vw;
    height: 100vh;
    overflow-y: auto;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
  }

  .navbar.open ul {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    transform: translateX(0);
  }

  .navbar a {
    padding: 0.5rem 3rem;
    border-radius: var(--radius);
    font-size: 1.1rem;
    transition: var(--transition);
    display: block;
  }
  .navbar a:hover,
  .navbar a:focus { transform: translateX(8px); background: rgba(255,255,255,0.15); }

  /* Submenu accordion */
  nav ul ul {
    display: none !important;
    position: static;
    background: transparent;
    box-shadow: none;
    padding: 0.5rem 0 0.5rem 1.5rem;
    margin-top: 0.5rem;
    border-left: 3px solid rgba(255,255,255,0.2);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.4s ease;
  }
  nav ul ul::before { display: none; }

  nav ul li.active > ul {
    display: block !important;
    max-height: none;
    opacity: 1;
    overflow: visible;
  }
  
  /* Hide hamburger toggle when submenu is open */
  .navbar.submenu-open .menu-toggle {
    display: none !important;
  }
  
  /* Back button in submenu */
  .submenu-back-btn {
    display: none;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    margin-bottom: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    text-align: left;
  }
  
  nav ul li.active > ul .submenu-back-btn {
    display: flex;
  }
  
  .submenu-back-btn:hover,
  .submenu-back-btn:focus {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(-4px);
  }
  
  .submenu-back-btn i {
    font-size: 0.9rem;
  }

  nav ul li:has(ul) > a::after { content: '▼'; font-size: 0.85rem; margin-left: auto; transition: transform 0.3s ease; }
  nav ul li.active > a::after { transform: rotate(180deg); }

  nav ul li > a { cursor: pointer; display: flex; align-items: center; justify-content: space-between; }

  
  .nav-search-container {
    display: block !important; /* Show only in mobile toggle menu */
    order: -1; /* Move to top */
    width: 100%;
    margin-bottom: 1rem;
    padding: 0;
  }
  .nav-search { 
    min-width: 100%; 
    border-radius: 40px; 
    background: rgba(255,255,255,0.1); 
    backdrop-filter: blur(10px); 
    margin: 0; 
  }
  .nav-search:focus-within { 
    box-shadow: 0 0 0 3px rgba(212,165,116,0.3); 
  }

  /* Other sections */
  .lastread-container { grid-template-columns: 1fr; padding: 1.5rem 1rem; gap: 1.5rem; }
  .mood-container { flex-wrap: wrap; gap: 1rem; }
  .mood-item {font-size: 0.95rem; border-radius: var(--radius); transition: var(--transition); }
  .mood-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
  .genre-container { grid-template-columns: 1fr 1fr; gap: 1.25rem; }
}

/* Breakpoints */
/* Tablet (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
  .app {
    padding: 2rem;
  }
  
  .navbar nav {
    padding: 0 2rem;
  }
  
  .nav-container {
    padding: 0 2rem;
  }
  
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 18px;
  }
  
  .lastread-container {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  .genre-container {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .mood-container {
    flex-wrap: wrap;
    gap: 0.75rem;
  }
}

/* Small phones (<=480px) */
@media (max-width: 480px) {
  .navbar nav,
  .nav-container {
    padding: 0 0.75rem;
  }

  .navbar ul {
    width: 78vw;
  }

  .navbar a {
    font-size: 1rem;
    padding: 0.5rem 2.25rem;
  }

  .nav-search-container {
    margin-bottom: 0.75rem;
  }

  .genre-container {
    grid-template-columns: 1fr;
  }

  .lastread-container {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

/*large screens (>=1280px) */
@media (min-width: 1280px) {
  .navbar nav,
  .nav-container {
    padding: 0 3rem;
  }

  .grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 22px;
  }

  .genre-container {
    grid-template-columns: repeat(4, 1fr);
  }

  .lastread-container {
    grid-template-columns: repeat(3, 1fr);
  }
}


@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}