:root {
  --primary: #1E88E5;
  --primary-glow: rgba(30, 136, 229, 0.4);
  --secondary: #80CAFF;
  --bg-dark: #0B0E14;
  --surface: #151A22;
  --surface-light: rgba(255, 255, 255, 0.05);
  --text-main: #FFFFFF;
  --text-muted: #A0AAB2;
  --border-color: rgba(255, 255, 255, 0.1);
  --glass-bg: rgba(21, 26, 34, 0.7);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(30, 136, 229, 0.1), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(128, 202, 255, 0.1), transparent 25%);
}

/* Navbar */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 5%;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--text-main), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
}

.nav-logo {
  height: 32px;
  width: 32px;
  border-radius: 8px;
}

.hero-logo {
  height: 100px;
  width: 100px;
  border-radius: 24px;
  margin-bottom: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.developer-profile {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.8rem 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: all 0.3s ease;
}

.developer-profile span {
  color: var(--text-main);
  font-weight: 600;
}

.developer-profile:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text-main);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 5%;
  margin-top: 60px;
}

.hero h1 {
  font-size: 4.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
}

.hero h1 span {
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 1.1rem;
}

.btn-primary {
  background: var(--primary);
  color: #FFF;
  box-shadow: 0 8px 25px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px var(--primary-glow);
  background: #2196F3;
}

/* Features */
.features {
  padding: 5rem 5%;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 4rem;
  font-weight: 700;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2.5rem;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
  background: var(--surface-light);
}

.icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: 15px;
  background: rgba(30, 136, 229, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--secondary);
  font-size: 1.8rem;
}

.card h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.card p {
  color: var(--text-muted);
  font-size: 1rem;
}

/* Content Pages (Privacy & Terms) */
.content-page {
  padding: 8rem 5% 5rem;
  max-width: 800px;
  margin: 0 auto;
}

.content-page h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.content-page .updated {
  color: var(--text-muted);
  margin-bottom: 3rem;
  font-size: 0.9rem;
}

.content-page h2 {
  font-size: 1.5rem;
  margin: 2rem 0 1rem;
  color: var(--text-main);
}

.content-page p, .content-page ul {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.content-page ul {
  padding-left: 1.5rem;
}

.content-page li {
  margin-bottom: 0.5rem;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 5%;
  text-align: center;
  margin-top: 4rem;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--secondary);
}

.copyright {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.9rem;
}

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-up {
  animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 3rem; }
  .nav-links { display: none; }
}