:root {
  /* Colors - Light Mode */
  --primary: #5B4B8A;
  --bg: #FAFAF8;
  --text: #1A1A1A;
  --neutral: #E6E6E9;
  --border: rgba(26, 26, 26, 0.1);
  --glass-bg: rgba(250, 250, 248, 0.8);
  
  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg: #0D1117;
  --text: #FAFAF8;
  --neutral: #1A1A1A;
  --border: rgba(230, 230, 233, 0.1);
  --glass-bg: rgba(13, 17, 23, 0.8);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.5s ease, color 0.5s ease;
}

/* Background Animation Container */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.5;
}

/* Navbar */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 10%;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background: var(--glass-bg);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.1rem;
  font-weight: 700;
  font-size: 2.75rem;
  letter-spacing: -0.05em;
  line-height: 1;
  color: var(--text);
}

.logo img {
  height: 70px;
  width: auto;
  display: block;
  transform: translateY(7px);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.social-links {
  display: flex;
  gap: 1.5rem;
}

.social-links a {
  color: var(--text);
  opacity: 0.6;
  transition: var(--transition);
}

.social-links a:hover {
  opacity: 1;
  transform: translateY(-2px);
}

#theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

#theme-toggle:hover {
  background: var(--neutral);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 10%;
  padding-top: 80px;
}


.hero h1 {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
  max-width: 900px;
  animation: fadeInUp 1s ease;
}

.hero p {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  opacity: 0.7;
  max-width: 600px;
  margin-bottom: 2.5rem;
  animation: fadeInUp 1.2s ease;
}

.cta-btn {
  background: var(--primary);
  color: white;
  padding: 1rem 2.5rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.125rem;
  transition: var(--transition);
  box-shadow: 0 10px 20px rgba(91, 75, 138, 0.2);
  animation: fadeInUp 1.4s ease;
}

.cta-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 30px rgba(91, 75, 138, 0.3);
}

/* About Section */
.about {
  padding: 8rem 10%;
  background: var(--neutral);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  letter-spacing: -0.03em;
}

.about p {
  font-size: 1.25rem;
  opacity: 0.8;
}

/* Footer */
footer {
  padding: 4rem 10%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  opacity: 0.6;
  font-size: 0.875rem;
}

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 768px) {
  nav { padding: 1rem 5%; }
  .nav-actions { gap: 0.75rem; }
  .social-links { display: none; }
  .hero h1 { font-size: 3rem; }
  footer { flex-direction: column; gap: 1rem; text-align: center; }
}