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

/* Screen reader only utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body {
  font-family: "Arial", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  color: #ffffff;
  min-height: 100vh;
  overflow-x: hidden;
}

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

/* Header */
header {
  padding: 20px 0;
  position: relative;
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 24px;
  font-weight: bold;
  color: #ffffff;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 40px;
}

.nav-links a {
  color: #a0aec0;
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: #ff6b6b;
}

/* Main Content */
main {
  padding: 40px 0;
}

.page-header {
  text-align: center;
  margin-bottom: 60px;
}

.page-title {
  font-size: 3.5rem;
  font-weight: bold;
  margin-bottom: 20px;
  background: linear-gradient(45deg, #ff6b6b, #ffa500);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-subtitle {
  font-size: 1.2rem;
  color: #a0aec0;
  max-width: 600px;
  margin: 0 auto;
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.resource-category {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 15px;
  padding: 30px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.resource-category:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(255, 107, 107, 0.1);
  border-color: rgba(255, 107, 107, 0.3);
}

.category-header {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
}

.category-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(45deg, #ff6b6b, #ffa500);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 15px;
  font-size: 24px;
}

.category-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: #ffffff;
}

.resource-list {
  list-style: none;
}

.resource-item {
  margin-bottom: 15px;
  padding: 15px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  border-left: 3px solid #ff6b6b;
  transition: all 0.3s ease;
}

.resource-item:hover {
  background: rgba(255, 107, 107, 0.1);
  transform: translateX(5px);
}

.resource-link {
  color: #ffffff;
  text-decoration: none;
  font-weight: 500;
  display: block;
  margin-bottom: 5px;
}

.resource-description {
  color: #a0aec0;
  font-size: 0.9rem;
}

/* Search Bar */
.search-container {
  max-width: 500px;
  margin: 0 auto 40px;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 15px 50px 15px 20px;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid transparent;
  border-radius: 25px;
  color: #ffffff;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.search-input:focus {
  outline: none;
  border-color: #ff6b6b;
  background: rgba(255, 255, 255, 0.15);
}

.search-input::placeholder {
  color: #a0aec0;
}

.search-icon {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: #a0aec0;
  font-size: 20px;
}

/* Add Resource Button */
.add-resource-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: linear-gradient(45deg, #ff6b6b, #ffa500);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 24px;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(255, 107, 107, 0.3);
  transition: all 0.3s ease;
  z-index: 1000;
}

.add-resource-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(255, 107, 107, 0.4);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .page-title {
    font-size: 2.5rem;
  }

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

  .resource-category {
    padding: 20px;
  }
}

/* Background Elements */
.bg-element {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(
    45deg,
    rgba(255, 107, 107, 0.1),
    rgba(255, 165, 0, 0.1)
  );
  filter: blur(60px);
  z-index: -1;
}

.bg-element-1 {
  width: 300px;
  height: 300px;
  top: 10%;
  right: -10%;
  animation: float 6s ease-in-out infinite;
}

.bg-element-2 {
  width: 200px;
  height: 200px;
  bottom: 20%;
  left: -5%;
  animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}