:root {
  --bg-color: #ffffff;
  --text-primary: #1a1a1a;
  --text-secondary: rgba(0, 0, 0, 0.6);
  --accent-color: #2563eb;
  /* Deeper Blue for Light Mode */
  --accent-glow: rgba(37, 99, 235, 0.1);
  --card-bg: rgba(0, 0, 0, 0.02);
  --card-border: rgba(0, 0, 0, 0.05);
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(0, 0, 0, 0.05);
  --transition-fast: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  position: relative;
}



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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes glowPulse {
  0% {
    box-shadow: 0 0 5px var(--accent-glow);
  }

  50% {
    box-shadow: 0 0 20px var(--accent-glow);
  }

  100% {
    box-shadow: 0 0 5px var(--accent-glow);
  }
}

.animate-fade-in {
  animation: fadeIn var(--transition-slow) forwards;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
header {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  background-color: var(--glass-bg);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #000 0%, #444 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  margin-left: 2rem;
  transition: var(--transition-fast);
}

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

/* Hero Section */
.hero {
  padding: 160px 0 100px;
  text-align: center;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  filter: blur(80px);
  z-index: -1;
  opacity: 0.5;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.1;
  letter-spacing: -2px;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 3rem;
}

.download-group {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.btn-download {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg-color);
  border: 1px solid var(--card-border);
  padding: 1.25rem 2rem;
  border-radius: 20px;
  text-decoration: none;
  transition: var(--transition-fast);
  min-width: 180px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.03);
}

.btn-download .arch {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.btn-download .desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.btn-download:hover {
  transform: translateY(-5px);
  border-color: var(--accent-color);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  background: #fff;
}

/* Primary Button Style for Main Arch */
.btn-download:first-child {
  background: #1a1a1a;
  border-color: #1a1a1a;
}

.btn-download:first-child .arch {
  color: #fff;
}

.btn-download:first-child .desc {
  color: rgba(255, 255, 255, 0.6);
}

.btn-download:first-child:hover {
  background: #000;
  border-color: #000;
}

/* Features Grid */
.features {
  padding: 100px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 700;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 2.5rem;
  border-radius: 24px;
  transition: var(--transition-fast);
}

.feature-card:hover {
  border-color: var(--accent-color);
  background-color: rgba(255, 255, 255, 0.05);
  transform: translateY(-5px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background-color: var(--accent-glow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--accent-color);
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Showcase Section */
.showcase {
  padding: 100px 0;
  overflow: hidden;
}

.showcase-container {
  display: flex;
  gap: 2rem;
  padding: 2rem 0;
  mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
}

.showcase-item {
  min-width: 400px;
  aspect-ratio: 16/9;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--card-border);
  position: relative;
  transition: var(--transition-fast);
}

.showcase-item:hover {
  transform: scale(1.02);
  border-color: var(--accent-color);
}

.showcase-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

/* Screenshot Preview */
.preview {
  padding: 100px 0;
}

.preview-container {
  background: #fff;
  border: 1px solid var(--card-border);
  /* border-radius: 32px; */
  padding: 1rem;
  max-width: 1000px;
  margin: 0 auto;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.1);
}

.preview-inner {
  /* border-radius: 22px; */
  overflow: hidden;
  /* border: 1px solid var(--glass-border); */
  line-height: 0;
}

.preview img {
  width: 100%;
  height: auto;
}

/* Footer */
footer {
  padding: 80px 0 40px;
  border-top: 1px solid var(--card-border);
  text-align: center;
}

.footer-links {
  margin-bottom: 2rem;
  display: flex;
  justify-content: center;
  gap: 2rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

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

.copyright {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.8rem;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 3rem;
  }

  .showcase-item {
    min-width: 300px;
  }
}