* {
 margin: 0;
 padding: 0;
 box-sizing: border-box;
 font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
 scroll-behavior: smooth;
}
:root {
 --bg-primary: #0a0a0f;
 --bg-secondary: #151520;
 --bg-glass: rgba(25, 25, 35, 0.7);
 --accent-primary: #6366f1;
 --accent-secondary: #8b5cf6;
 --accent-tertiary: #a855f7;
 --text-primary: #f8fafc;
 --text-secondary: #cbd5e1;
 --border-light: rgba(255, 255, 255, 0.1);
 --border-accent: rgba(99, 102, 241, 0.3);
 --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.4);
 --shadow-accent: 0 0 30px rgba(99, 102, 241, 0.25);
}
body {
 background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
 color: var(--text-primary);
 min-height: 100vh;
 padding: 2rem;
 padding-top: 100px;
 line-height: 1.6;
 position: relative;
 overflow-x: hidden;
}
body::before {
 content: "";
 position: fixed;
 top: 20%;
 left: 10%;
 width: 300px;
 height: 300px;
 background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(99, 102, 241, 0) 70%);
 border-radius: 50%;
 animation: float 6s ease-in-out infinite;
 z-index: -1;
}
body::after {
 content: "";
 position: fixed;
 top: 60%;
 right: 5%;
 width: 200px;
 height: 200px;
 background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, rgba(139, 92, 246, 0) 70%);
 border-radius: 50%;
 animation: float 8s ease-in-out infinite reverse;
 z-index: -1;
}
.blob-3 {
 position: fixed;
 bottom: 15%;
 left: 50%;
 transform: translateX(-50%);
 width: 150px;
 height: 150px;
 background: radial-gradient(circle, rgba(168, 85, 247, 0.08) 0%, rgba(168, 85, 247, 0) 70%);
 border-radius: 50%;
 animation: float 10s ease-in-out infinite;
 z-index: -1;
}
@keyframes float {
 0%,
 100% {
  transform: translateY(0) scale(1);
  opacity: 0.7;
 }
 50% {
  transform: translateY(-20px) scale(1.05);
  opacity: 1;
 }
}
/* Navbar */
.navbar {
 position: fixed;
 top: 0;
 left: 0;
 width: 100%;
 background: var(--bg-glass);
 backdrop-filter: blur(25px) saturate(180%);
 -webkit-backdrop-filter: blur(25px) saturate(180%);
 border-bottom: 1px solid var(--border-light);
 padding: 1.2rem 2rem;
 display: flex;
 justify-content: space-between;
 align-items: center;
 z-index: 1000;
 transition: all 0.4s ease;
}
.navbar.scrolled {
 background: rgba(20, 20, 30, 0.95);
 box-shadow: var(--shadow-glass);
}
.navbar .logo {
 font-size: 1.6rem;
 font-weight: 700;
 background: linear-gradient(135deg, var(--accent-primary), var(--accent-tertiary));
 -webkit-background-clip: text;
 -webkit-text-fill-color: transparent;
 background-clip: text;
 letter-spacing: 1px;
}
.navbar .nav-links {
 display: flex;
 gap: 2.5rem;
 list-style: none;
}
.navbar .nav-links a {
 color: var(--text-secondary);
 text-decoration: none;
 font-weight: 500;
 font-size: 1rem;
 padding: 0.5rem 1rem;
 border-radius: 8px;
 transition: all 0.3s ease;
 position: relative;
}
.navbar .nav-links a:hover {
 color: var(--text-primary);
 background: rgba(99, 102, 241, 0.1);
}
.navbar .nav-links a::after {
 content: "";
 position: absolute;
 bottom: -5px;
 left: 50%;
 width: 0;
 height: 2px;
 background: linear-gradient(90deg, var(--accent-primary), var(--accent-tertiary));
 transition: all 0.3s ease;
 transform: translateX(-50%);
}
.navbar .nav-links a:hover::after {
 width: 80%;
}
.navbar .menu-icon {
 display: none;
 font-size: 1.5rem;
 color: var(--text-primary);
 cursor: pointer;
 padding: 0.5rem;
 border-radius: 6px;
 transition: background 0.3s ease;
}
.navbar .menu-icon:hover {
 background: rgba(99, 102, 241, 0.1);
}
/* Mobile Menu */
@media (max-width: 768px) {
 .navbar .nav-links {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--bg-glass);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border-top: 1px solid var(--border-light);
  flex-direction: column;
  align-items: center;
  gap: 0;
  padding: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
 }
 .navbar .nav-links.active {
  max-height: 400px;
  opacity: 1;
  padding: 1rem 0;
 }
 .navbar .nav-links li {
  width: 100%;
  text-align: center;
 }
 .navbar .nav-links a {
  display: block;
  padding: 1rem 2rem;
  border-radius: 0;
 }
 .navbar .nav-links a::after {
  display: none;
 }
 .navbar .menu-icon {
  display: block;
 }
}
/* Main Container */
.container {
 max-width: 1200px;
 margin: 0 auto;
 padding: 0 1rem;
}
h1 {
 text-align: center;
 margin-bottom: 3rem;
 font-size: 2.5rem;
 font-weight: 700;
 background: linear-gradient(135deg, var(--accent-primary), var(--accent-tertiary));
 -webkit-background-clip: text;
 -webkit-text-fill-color: transparent;
 background-clip: text;
 letter-spacing: 1px;
}
/* Categories */
.categories-container {
 display: flex;
 flex-direction: column;
 gap: 1.5rem;
}
.category-section {
 background: var(--bg-glass);
 backdrop-filter: blur(25px);
 -webkit-backdrop-filter: blur(25px);
 border: 1px solid var(--border-light);
 border-radius: 16px;
 overflow: hidden;
 transition: all 0.3s ease;
 box-shadow: var(--shadow-glass);
}
.category-section:hover {
 transform: translateY(-2px);
 box-shadow: var(--shadow-glass), var(--shadow-accent);
}
.category-header {
 display: flex;
 justify-content: space-between;
 align-items: center;
 padding: 1.5rem 2rem;
 cursor: pointer;
 transition: all 0.3s ease;
 background: rgba(255, 255, 255, 0.05);
}
.category-header:hover {
 background: rgba(255, 255, 255, 0.08);
}
.category-header.active {
 background: rgba(99, 102, 241, 0.1);
 border-bottom: 1px solid var(--border-accent);
}
.category-title {
 display: flex;
 align-items: center;
 gap: 1rem;
}
.category-icon {
 font-size: 1.5rem;
}
.category-title h2 {
 font-size: 1.4rem;
 font-weight: 600;
 color: var(--text-primary);
}
.category-arrow {
 font-size: 1.2rem;
 color: var(--text-secondary);
 transition: transform 0.3s ease;
}
.category-content {
 max-height: 0;
 overflow: hidden;
 transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
/* Tools Grid */
.tools-grid {
 display: grid;
 grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
 gap: 1.5rem;
 padding: 2rem;
}
.tool-card {
 background: rgba(255, 255, 255, 0.05);
 border: 1px solid var(--border-light);
 border-radius: 12px;
 padding: 1.5rem;
 text-decoration: none;
 color: var(--text-primary);
 transition: all 0.3s ease;
 position: relative;
 overflow: hidden;
}
.tool-card::before {
 content: "";
 position: absolute;
 top: 0;
 left: -100%;
 width: 100%;
 height: 100%;
 background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
 transition: left 0.6s ease;
}
.tool-card:hover::before {
 left: 100%;
}
.tool-card:hover {
 background: rgba(255, 255, 255, 0.08);
 border-color: var(--border-accent);
 transform: translateY(-3px);
 box-shadow: 0 8px 25px rgba(99, 102, 241, 0.2);
}
.tool-card h3 {
 font-size: 1.2rem;
 font-weight: 600;
 margin-bottom: 0.5rem;
 color: var(--text-primary);
}
.tool-card p {
 font-size: 0.9rem;
 color: var(--text-secondary);
 line-height: 1.5;
 margin: 0;
}
/* Scrollbar */
::-webkit-scrollbar {
 width: 10px;
}
::-webkit-scrollbar-track {
 background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
 background: linear-gradient(135deg, var(--accent-primary), var(--accent-tertiary));
 border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
 background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
}
/* Responsive Design */
@media (max-width: 768px) {
 body {
  padding: 1rem;
  padding-top: 90px;
 }
 .tools-grid {
  grid-template-columns: 1fr;
  padding: 1.5rem;
  gap: 1rem;
 }
 .category-header {
  padding: 1.25rem 1.5rem;
 }
 .category-title h2 {
  font-size: 1.2rem;
 }
 h1 {
  font-size: 2rem;
  margin-bottom: 2rem;
 }
 body::before,
 body::after,
 .blob-3 {
  display: none;
 }
}
@media (max-width: 480px) {
 .container {
  padding: 0 0.5rem;
 }
 .tools-grid {
  padding: 1rem;
 }
 .tool-card {
  padding: 1.25rem;
 }
}