/* CSS Variables for Light/Dark Mode */
:root {
  --primary-color: #ff0000;
  --primary-light: #ff3333;
  --primary-dark: #cc0000;
  --bg-color: #f9f9f9;
  --card-bg: #ffffff;
  --navbar-bg: #ffffff;
  --text-color: #0f0f0f;
  --text-light: #606060;
  --border-color: #e5e5e5;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.1);
  --radius: 8px;
  --transition: all 0.2s ease;
}

.dark-mode {
  --primary-color: #ff0000;
  --primary-light: #ff3333;
  --primary-dark: #cc0000;
  --bg-color: #0f0f0f;
  --card-bg: #121212;
  --navbar-bg: #202020;
  --text-color: #ffffff;
  --text-light: #aaaaaa;
  --border-color: #303030;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.3);
}

/* CRT Screen Effects */
.crt-effect {
  position: relative;
  overflow: hidden;
}

.crt-effect::before {
  content: " ";
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%),
              linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
  background-size: 100% 4px, 6px 100%;
  z-index: 9999;
  pointer-events: none;
  animation: flicker 0.15s infinite;
}

.crt-effect::after {
  content: " ";
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: rgba(18, 16, 16, 0.1);
  opacity: 0;
  z-index: 9999;
  pointer-events: none;
  animation: flicker 0.15s infinite;
}

.crt-scanlines::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
      0deg,
      rgba(0, 0, 0, 0.03) 0px,
      rgba(0, 0, 0, 0.03) 1px,
      transparent 1px,
      transparent 2px
  );
  pointer-events: none;
  z-index: 9998;
}

.crt-scanline::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
  z-index: 10000;
  pointer-events: none;
  animation: scanline 6s linear infinite;
}

.crt-border::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 12px solid #1a1a1a;
  border-radius: 8px;
  box-shadow: 
      inset 0 0 20px rgba(0, 0, 0, 0.8),
      0 0 30px rgba(0, 0, 0, 0.6);
  z-index: 10001;
  pointer-events: none;
}

.crt-glow::before {
  content: "";
  position: fixed;
  top: -10%;
  left: -10%;
  width: 120%;
  height: 120%;
  background: radial-gradient(
      ellipse at center,
      rgba(255, 255, 255, 0.05) 0%,
      rgba(255, 255, 255, 0) 60%
  );
  z-index: 9997;
  pointer-events: none;
}

.crt-vignette::after {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      ellipse at center,
      rgba(0, 0, 0, 0) 60%,
      rgba(0, 0, 0, 0.3) 100%
  );
  z-index: 9996;
  pointer-events: none;
}

@keyframes flicker {
  0% {
      opacity: 0.97;
  }
  5% {
      opacity: 0.95;
  }
  10% {
      opacity: 0.98;
  }
  15% {
      opacity: 0.93;
  }
  20% {
      opacity: 0.99;
  }
  50% {
      opacity: 0.94;
  }
  100% {
      opacity: 0.96;
  }
}

@keyframes scanline {
  0% {
      transform: translateY(-100%);
  }
  100% {
      transform: translateY(100vh);
  }
}

@keyframes textShadow {
  0% {
      text-shadow: 0.4389924193300864px 0 1px rgba(0,30,255,0.5), -0.4389924193300864px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  5% {
      text-shadow: 2.7928974010788217px 0 1px rgba(0,30,255,0.5), -2.7928974010788217px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  10% {
      text-shadow: 0.02956275843481219px 0 1px rgba(0,30,255,0.5), -0.02956275843481219px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  15% {
      text-shadow: 0.40218538552878136px 0 1px rgba(0,30,255,0.5), -0.40218538552878136px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  20% {
      text-shadow: 3.4794037899852017px 0 1px rgba(0,30,255,0.5), -3.4794037899852017px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  25% {
      text-shadow: 1.6125630401149584px 0 1px rgba(0,30,255,0.5), -1.6125630401149584px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  30% {
      text-shadow: 0.7015590085143956px 0 1px rgba(0,30,255,0.5), -0.7015590085143956px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  35% {
      text-shadow: 3.896914047650351px 0 1px rgba(0,30,255,0.5), -3.896914047650351px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  40% {
      text-shadow: 3.870905614848819px 0 1px rgba(0,30,255,0.5), -3.870905614848819px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  45% {
      text-shadow: 2.231056963361899px 0 1px rgba(0,30,255,0.5), -2.231056963361899px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  50% {
      text-shadow: 0.08084290417898504px 0 1px rgba(0,30,255,0.5), -0.08084290417898504px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  55% {
      text-shadow: 2.3758461067427543px 0 1px rgba(0,30,255,0.5), -2.3758461067427543px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  60% {
      text-shadow: 2.202193051050636px 0 1px rgba(0,30,255,0.5), -2.202193051050636px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  65% {
      text-shadow: 2.8638780614874975px 0 1px rgba(0,30,255,0.5), -2.8638780614874975px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  70% {
      text-shadow: 0.48874025155497314px 0 1px rgba(0,30,255,0.5), -0.48874025155497314px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  75% {
      text-shadow: 1.8948491305757957px 0 1px rgba(0,30,255,0.5), -1.8948491305757957px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  80% {
      text-shadow: 0.0833037308038857px 0 1px rgba(0,30,255,0.5), -0.0833037308038857px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  85% {
      text-shadow: 0.09769827255241735px 0 1px rgba(0,30,255,0.5), -0.09769827255241735px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  90% {
      text-shadow: 3.443339761481782px 0 1px rgba(0,30,255,0.5), -3.443339761481782px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  95% {
      text-shadow: 2.1841838852799786px 0 1px rgba(0,30,255,0.5), -2.1841838852799786px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
  100% {
      text-shadow: 2.6208764473832513px 0 1px rgba(0,30,255,0.5), -2.6208764473832513px 0 1px rgba(255,0,80,0.3), 0 0 3px;
  }
}

.crt-text {
  animation: textShadow 1.6s infinite;
}

.crt-toggle {
  position: fixed;
  top: 70px;
  right: 20px;
  z-index: 10002;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.crt-toggle:hover {
  background: var(--border-color);
}

.crt-toggle span {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-color);
}

.crt-switch {
  position: relative;
  width: 36px;
  height: 20px;
}

.crt-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.crt-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--text-light);
  transition: .4s;
  border-radius: 20px;
}

.crt-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 2px;
  bottom: 2px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

input:checked + .crt-slider {
  background-color: var(--primary-color);
}

input:checked + .crt-slider:before {
  transform: translateX(16px);
}

body.crt-mode {
  background: #000 !important;
}

body.crt-mode .crt-effect::before,
body.crt-mode .crt-effect::after,
body.crt-mode .crt-scanlines::before,
body.crt-mode .crt-scanline::before,
body.crt-mode .crt-border::before,
body.crt-mode .crt-glow::before,
body.crt-mode .crt-vignette::after {
  display: block !important;
}

/* Startup Animation */
.startup-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #ff0000, #cc0000);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.startup-animation.hidden {
  opacity: 0;
  visibility: hidden;
}

.animation-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.logo-animation {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.logo-circle {
  width: 100px;
  height: 100px;
  background: white;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulse 2s infinite;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateY(0deg);
}

.logo-circle i {
  font-size: 3rem;
  color: #ff0000;
}

.logo-text {
  color: white;
  font-size: 2.5rem;
  font-weight: 700;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  letter-spacing: 1px;
}

.loading-bar {
  width: 200px;
  height: 4px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  overflow: hidden;
}

.loading-progress {
  height: 100%;
  background: white;
  border-radius: 2px;
  width: 0%;
  animation: loading 2s ease-in-out forwards;
}

@keyframes pulse {
  0% {
    transform: perspective(1000px) rotateY(0deg) scale(1);
  }
  50% {
    transform: perspective(1000px) rotateY(0deg) scale(1.1);
  }
  100% {
    transform: perspective(1000px) rotateY(0deg) scale(1);
  }
}

@keyframes loading {
  0% {
    width: 0%;
  }
  100% {
    width: 100%;
  }
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background: var(--bg-color);
  transition: var(--transition);
  min-height: 100vh;
  overflow-x: hidden;
}

/* YouTube-inspired Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--navbar-bg);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.nav-container {
  max-width: 100%;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 56px;
}

/* Left Section */
.nav-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 0 0 auto;
}

.nav-menu-btn {
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 18px;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.nav-menu-btn:hover {
  background: var(--border-color);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-brand h1 {
  font-size: 20px;
  font-weight: 500;
  color: var(--text-color);
}

.nav-brand i {
  font-size: 20px;
  color: var(--primary-color);
}

/* Center Section */
.nav-center {
  flex: 1;
  max-width: 640px;
  margin: 0 40px;
}

.search-container {
  display: flex;
  align-items: center;
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 40px;
  overflow: hidden;
  transition: var(--transition);
  max-width: 100%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transform-style: preserve-3d;
  transform: perspective(1000px) translateZ(0);
}

.search-container:focus-within {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px var(--primary-color), 0 4px 12px rgba(255, 0, 0, 0.2);
  transform: perspective(1000px) translateZ(10px);
}

.search-container input {
  border: none;
  background: transparent;
  color: var(--text-color);
  width: 100%;
  outline: none;
  font-size: 16px;
  padding: 10px 16px;
}

.search-container input::placeholder {
  color: var(--text-light);
}

.search-btn {
  background: var(--border-color);
  border: none;
  color: var(--text-color);
  cursor: pointer;
  padding: 8px 20px;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  border-left: 1px solid var(--border-color);
}

.search-btn:hover {
  background: #e5e5e5;
}

.clear-search-btn {
  background: var(--border-color);
  border: none;
  color: var(--text-color);
  cursor: pointer;
  padding: 8px 16px;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
}

.clear-search-btn.visible {
  opacity: 1;
  visibility: visible;
}

.clear-search-btn:hover {
  background: #e5e5e5;
}

/* Mobile Search Bar */
.mobile-search-container {
  display: none;
  padding: 0 16px 12px;
  border-bottom: 1px solid var(--border-color);
  background: var(--navbar-bg);
}

/* Right Section */
.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-action-btn {
  background: transparent;
  border: none;
  color: var(--text-color);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  padding: 8px;
  border-radius: 50%;
  width: 40px;
  height: 40px;
}

.nav-action-btn:hover {
  background: var(--border-color);
}

.nav-action-btn.create-btn {
  background: var(--primary-color);
  color: white;
}

.nav-action-btn.create-btn:hover {
  background: var(--primary-dark);
}

.nav-btn-text {
  display: inline;
}

.nav-profile {
  display: flex;
  align-items: center;
  margin-left: 8px;
}

.profile-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  background: transparent;
}

.profile-btn:hover {
  opacity: 0.8;
}

.profile-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: 0;
  left: -240px;
  width: 240px;
  height: 100%;
  background: var(--navbar-bg);
  border-right: 1px solid var(--border-color);
  z-index: 1100;
  transition: var(--transition);
  overflow-y: auto;
  box-shadow: 5px 0 15px rgba(0, 0, 0, 0.1);
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateY(0deg);
}

.sidebar.open {
  left: 0;
  transform: perspective(1000px) rotateY(0deg);
}

.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  height: 56px;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-brand h2 {
  font-size: 18px;
  font-weight: 500;
  color: var(--text-color);
}

.sidebar-brand i {
  font-size: 18px;
  color: var(--primary-color);
}

.sidebar-close {
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 18px;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.sidebar-close:hover {
  background: var(--border-color);
}

.sidebar-content {
  padding: 16px 0;
}

.sidebar-section {
  margin-bottom: 24px;
}

.sidebar-section h3 {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0 16px;
  margin-bottom: 8px;
}

.sidebar-item {
  width: 100%;
  background: none;
  border: none;
  color: var(--text-color);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 400;
  text-align: left;
}

.sidebar-item:hover {
  background: var(--border-color);
}

.sidebar-item.active {
  background: var(--border-color);
  font-weight: 500;
}

.sidebar-item.active i {
  color: var(--primary-color);
}

/* Sidebar Categories */
.sidebar-categories {
  display: flex;
  flex-direction: column;
}

.sidebar-category {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  color: var(--text-color);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-size: 14px;
}

.sidebar-category:hover {
  background: var(--border-color);
}

.sidebar-category.active {
  background: var(--border-color);
  font-weight: 500;
}

.sidebar-category-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  font-size: 14px;
  color: white;
}

.sidebar-category-count {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-light);
  background: var(--bg-color);
  padding: 2px 6px;
  border-radius: 10px;
}

.sidebar-category.active .sidebar-category-count {
  background: var(--card-bg);
}

.theme-toggle-sidebar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: default;
  padding: 10px 16px;
}

.theme-toggle-sidebar:hover {
  background: transparent;
}

/* Sidebar Overlay for Mobile */
.sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1099;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.sidebar-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Profile Dropdown */
.profile-dropdown {
  position: fixed;
  top: 60px;
  right: 16px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 280px;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition);
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateX(0deg);
}

.profile-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) perspective(1000px) rotateX(0deg);
}

.profile-header {
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 12px;
}

.profile-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--primary-color);
  flex-shrink: 0;
}

.profile-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-info h3 {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 2px;
}

.profile-info p {
  font-size: 14px;
  color: var(--text-light);
}

.profile-actions {
  padding: 8px;
}

.profile-action-btn {
  width: 100%;
  padding: 10px 12px;
  background: none;
  border: none;
  border-radius: var(--radius);
  color: var(--text-color);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 4px;
  font-size: 14px;
  font-weight: 400;
  text-align: left;
}

.profile-action-btn:hover {
  background: var(--border-color);
}

.theme-toggle-section {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  margin-bottom: 4px;
  border-radius: var(--radius);
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--text-light);
  transition: var(--transition);
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: var(--transition);
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--primary-color);
}

input:checked + .slider:before {
  transform: translateX(20px);
}

/* Main Content */
.main-container {
  max-width: 100%;
  margin: 0 auto;
  padding: 72px 16px 24px;
}

/* Sections */
.home-section,
.apps-section {
  display: none;
}

.home-section.active,
.apps-section.active {
  display: block;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.section-title {
  font-size: 20px;
  font-weight: 500;
  color: var(--text-color);
  margin-bottom: 8px;
}

.view-all-btn {
  background: transparent;
  border: none;
  color: var(--primary-color);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 500;
  white-space: nowrap;
  font-size: 14px;
  padding: 8px 12px;
  border-radius: var(--radius);
}

.view-all-btn:hover {
  background: var(--border-color);
}

.back-btn {
  background: transparent;
  border: none;
  color: var(--text-color);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  white-space: nowrap;
  padding: 8px 12px;
  border-radius: var(--radius);
  margin-right: 16px;
}

.back-btn:hover {
  background: var(--border-color);
}

/* Hero Banner */
.hero-banner {
  background: linear-gradient(135deg, #ff0000, #cc0000);
  border-radius: var(--radius);
  padding: 32px 24px;
  margin-bottom: 32px;
  color: white;
  box-shadow: 0 10px 30px rgba(255, 0, 0, 0.3);
  text-align: center;
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateX(0deg);
  position: relative;
  overflow: hidden;
}

.hero-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 50%);
  pointer-events: none;
}

.hero-content h1 {
  font-size: 28px;
  font-weight: 500;
  margin-bottom: 8px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-content p {
  font-size: 16px;
  opacity: 0.9;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Recent Apps - Horizontal Scroll */
.recent-apps-container {
  display: flex;
  overflow-x: auto;
  gap: 16px;
  padding: 8px 0 16px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.recent-apps-container::-webkit-scrollbar {
  display: none;
}

.recent-app-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  min-width: 120px;
  flex-shrink: 0;
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateY(0deg) translateZ(0);
  position: relative;
}

.recent-app-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0) 50%);
  border-radius: var(--radius);
  pointer-events: none;
}

.recent-app-card:hover {
  border-color: var(--primary-color);
  transform: perspective(1000px) rotateY(0deg) translateZ(10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.recent-app-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: white;
  background: var(--primary-color);
  flex-shrink: 0;
  overflow: hidden;
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateY(0deg);
}

.recent-app-icon img {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  object-fit: cover;
}

.recent-app-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-color);
  width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recent-app-category {
  font-size: 12px;
  color: var(--text-light);
}

/* Categories Grid */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}

.category-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  position: relative;
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateY(0deg) translateZ(0);
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0) 50%);
  border-radius: var(--radius);
  pointer-events: none;
}

.category-card:hover {
  border-color: var(--primary-color);
  transform: perspective(1000px) rotateY(0deg) translateZ(10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.category-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: white;
  transition: var(--transition);
  flex-shrink: 0;
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateY(0deg);
}

.category-icon img {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  object-fit: cover;
}

.category-name {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-color);
}

.category-count {
  font-size: 14px;
  color: var(--text-light);
}

.category-menu {
  position: absolute;
  top: 12px;
  right: 12px;
  background: transparent;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  transition: var(--transition);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  opacity: 0;
}

.category-card:hover .category-menu {
  opacity: 1;
}

.category-menu:hover {
  color: var(--text-color);
  background: var(--border-color);
}

/* Apps Grid */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}

.app-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  position: relative;
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateY(0deg) translateZ(0);
}

.app-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0) 50%);
  border-radius: var(--radius);
  pointer-events: none;
}

.app-card:hover {
  border-color: var(--primary-color);
  transform: perspective(1000px) rotateY(0deg) translateZ(10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.app-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: white;
  background: var(--primary-color);
  flex-shrink: 0;
  overflow: hidden;
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateY(0deg);
}

.app-icon img {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  object-fit: cover;
}

.app-name {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-color);
  width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-category {
  font-size: 14px;
  color: var(--text-light);
}

.favorite-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: transparent;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  transition: var(--transition);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
}

.favorite-btn:hover {
  color: #ff4757;
  background: rgba(255, 71, 87, 0.1);
}

.favorite-btn.active {
  color: #ff4757;
}

.app-menu {
  position: absolute;
  top: 12px;
  left: 12px;
  background: transparent;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  transition: var(--transition);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  opacity: 0;
}

.app-card:hover .app-menu {
  opacity: 1;
}

.app-menu:hover {
  color: var(--text-color);
  background: var(--border-color);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  backdrop-filter: blur(5px);
  overflow-y: auto;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--card-bg);
  border-radius: var(--radius);
  width: 100%;
  max-width: 500px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: modalSlideIn 0.3s ease;
  margin: auto;
  border: 1px solid var(--border-color);
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateX(0deg);
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: perspective(1000px) rotateX(0deg) translateY(-20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: perspective(1000px) rotateX(0deg) translateY(0) scale(1);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  background: var(--card-bg);
  z-index: 1;
}

.modal-header h2 {
  color: var(--text-color);
  font-weight: 600;
  font-size: 1.5rem;
}

.close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-btn:hover {
  color: var(--text-color);
  background: var(--bg-color);
  transform: scale(1.1);
}

.modal-body {
  padding: 1.5rem;
  max-height: 70vh;
  overflow-y: auto;
}

.create-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
  overflow-x: auto;
}

.tab-btn {
  background: none;
  border: none;
  padding: 0.85rem 1.5rem;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  position: relative;
  white-space: nowrap;
}

.tab-btn.active {
  color: var(--primary-color);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-color);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-color);
  font-size: 0.95rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.85rem;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-color);
  color: var(--text-color);
  transition: var(--transition);
  font-size: 0.95rem;
  transform-style: preserve-3d;
  transform: perspective(1000px) translateZ(0);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(255, 0, 0, 0.1);
  transform: perspective(1000px) translateZ(5px);
}

.form-group input[type="color"] {
  height: 50px;
  padding: 0.25rem;
  cursor: pointer;
}

.icon-selection {
  margin-top: 0.5rem;
}

.icon-options {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.icon-option {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-color);
  color: white;
  font-size: 1.1rem;
  flex-shrink: 0;
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateY(0deg);
}

.icon-option:hover {
  transform: perspective(1000px) rotateY(0deg) scale(1.1);
}

.icon-option.selected {
  border-color: var(--primary-color);
  transform: perspective(1000px) rotateY(0deg) scale(1.1);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.icon-option img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-selection {
  margin-top: 0.5rem;
}

.avatar-options {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.avatar-option {
  width: 55px;
  height: 55px;
  border-radius: 50%;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  flex-shrink: 0;
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateY(0deg);
}

.avatar-option:hover {
  transform: perspective(1000px) rotateY(0deg) scale(1.1);
}

.avatar-option.selected {
  border-color: var(--primary-color);
  transform: perspective(1000px) rotateY(0deg) scale(1.1);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.avatar-option img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.form-actions {
  display: flex;
  gap: 0.85rem;
  justify-content: flex-end;
  margin-top: 1.75rem;
  flex-wrap: wrap;
}

.btn {
  padding: 0.85rem 1.75rem;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
  font-size: 0.95rem;
  flex: 1;
  min-width: 120px;
  text-align: center;
  transform-style: preserve-3d;
  transform: perspective(1000px) translateZ(0);
}

.btn-primary {
  background: var(--primary-color);
  color: white;
  box-shadow: 0 4px 12px rgba(255, 0, 0, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: perspective(1000px) translateZ(5px);
  box-shadow: 0 6px 20px rgba(255, 0, 0, 0.4);
}

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

.btn-secondary:hover {
  background: var(--bg-color);
  transform: perspective(1000px) translateZ(3px);
}

/* Icon Grid */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.icon-grid-option {
  width: 65px;
  height: 65px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-color);
  color: white;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.75rem;
  margin: 0 auto;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateY(0deg);
}

.icon-grid-option:hover {
  transform: perspective(1000px) rotateY(0deg) scale(1.1);
}

.icon-grid-option.selected {
  background: var(--primary-dark);
  transform: perspective(1000px) rotateY(0deg) scale(1.1);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* Context Menu */
.context-menu {
  position: fixed;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 3000;
  padding: 0.75rem;
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.95);
  transition: var(--transition);
  backdrop-filter: blur(10px);
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateX(0deg);
}

.context-menu.show {
  opacity: 1;
  visibility: visible;
  transform: scale(1) perspective(1000px) rotateX(0deg);
}

.context-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem;
  cursor: pointer;
  border-radius: 8px;
  transition: var(--transition);
  color: var(--text-color);
  font-size: 0.95rem;
}

.context-item:hover {
  background: var(--primary-color);
  color: white;
  transform: translateX(5px);
}

.context-item i {
  width: 16px;
  text-align: center;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  color: var(--text-color);
  box-shadow: var(--shadow-lg);
  z-index: 3000;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition);
  max-width: 300px;
  word-wrap: break-word;
  backdrop-filter: blur(10px);
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateX(0deg);
}

.toast.show {
  transform: translateY(0) perspective(1000px) rotateX(0deg);
  opacity: 1;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .nav-center {
    margin: 0 1rem;
  }
  
  .hero-banner {
    flex-direction: column;
    text-align: center;
    padding: 2rem 1.5rem;
  }
  
  .hero-content {
    margin-bottom: 2rem;
  }
}

@media (max-width: 768px) {
  .nav-container {
    padding: 0 0.75rem;
    flex-wrap: wrap;
    height: auto;
    min-height: 56px;
  }

  .nav-left, .nav-right {
    flex: 0 0 auto;
  }

  .nav-center {
    display: none;
  }

  .mobile-search-container {
    display: block;
  }

  .nav-btn-text {
    display: none;
  }

  .nav-action-btn {
    padding: 0.6rem;
    width: 40px;
    height: 40px;
    justify-content: center;
    border-radius: 12px;
  }

  .main-container {
    padding: 4rem 1rem 1rem;
  }

  .categories-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.75rem;
  }

  .category-card {
    padding: 1rem;
  }

  .category-icon {
    width: 50px;
    height: 50px;
    font-size: 1.25rem;
  }

  .apps-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .back-btn {
    width: 100%;
    justify-content: center;
    margin-bottom: 12px;
    margin-right: 0;
  }

  .form-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .icon-options,
  .avatar-options {
    grid-template-columns: repeat(4, 1fr);
  }

  .create-tabs {
    flex-direction: column;
  }

  .tab-btn {
    text-align: center;
    padding: 1rem;
  }

  .profile-dropdown {
    width: calc(100% - 2rem);
    right: 1rem;
    left: 1rem;
  }

  .sidebar {
    width: 300px;
    left: -300px;
  }

  .toast {
    right: 1rem;
    left: 1rem;
    max-width: none;
  }

  .app-card {
    padding: 1rem;
  }

  .section-title {
    font-size: 1.5rem;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .hero-content p {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .modal-content {
    margin: 0.5rem;
  }

  .icon-options,
  .avatar-options {
    grid-template-columns: repeat(3, 1fr);
  }

  .nav-brand h1 {
    font-size: 1.2rem;
  }

  .section-title {
    font-size: 1.25rem;
  }

  .apps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-banner {
    padding: 1.5rem 1rem;
  }
  
  .hero-content h1 {
    font-size: 1.75rem;
  }
}