/* ==========================================================================
   Deep Cuts - Sonic Glitch Design System (Web)
   ========================================================================== */

:root {
  /* Colors */
  --bg-primary: #0a0b10;
  --bg-secondary: #12141c;
  --bg-tertiary: #191c26;
  --text-primary: #f1f3f9;
  --text-secondary: #9aa0b0;
  --text-muted: #626875;
  
  --accent-cyan: #00e5ff;
  --accent-pink: #ff007f;
  --accent-indigo: #4b0082;
  
  --border-glow: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(0, 229, 255, 0.3);
  
  /* Gradients */
  --grad-sonic: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-pink) 100%);
  --grad-dark: linear-gradient(180deg, rgba(18, 20, 28, 0.8) 0%, rgba(10, 11, 16, 0.95) 100%);
  --grad-glow: radial-gradient(circle at top, rgba(0, 229, 255, 0.15) 0%, transparent 70%);

  /* Typography */
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;

  /* Shadows */
  --shadow-cyan: 0 0 20px rgba(0, 229, 255, 0.25);
  --shadow-pink: 0 0 20px rgba(255, 0, 127, 0.25);
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.5);
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* Background Ambient Glow */
body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 600px;
  background: var(--grad-glow);
  pointer-events: none;
  z-index: 0;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--accent-pink);
  text-shadow: 0 0 8px rgba(255, 0, 127, 0.3);
}

/* Layout Elements */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 11, 16, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-glow);
  transition: var(--transition-fast);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.logo-accent {
  background: var(--grad-sonic);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-right: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.95rem;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-cyan);
}

.nav-btn-github {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glow);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.nav-btn-github:hover {
  background: rgba(0, 229, 255, 0.1);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: var(--shadow-cyan);
}

.site-content {
  margin-top: 80px;
  min-height: calc(100vh - 200px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition-fast);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--grad-sonic);
  color: #000;
  box-shadow: 0 4px 15px rgba(0, 229, 255, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 0, 127, 0.4);
  color: #fff;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-glow);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--text-secondary);
  transform: translateY(-2px);
}

/* Landing Page / Index Styles */
.hero {
  padding: 6rem 2rem 4rem;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 10;
}

.hero-tag {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-pink);
  margin-bottom: 1rem;
  display: inline-block;
  background: rgba(255, 0, 127, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
}

.hero h1 {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
}

.hero-gradient {
  background: var(--grad-sonic);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 4rem;
}

/* Feature Container & Cards */
.features-section {
  max-width: 1200px;
  margin: 0 auto 6rem;
  padding: 0 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

.video-section {
  max-width: 900px;
  margin: 0 auto 6rem;
  padding: 0 2rem;
}

.video-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
}

.video-container iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-glow);
  padding: 2.5rem;
  border-radius: 16px;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--grad-sonic);
  opacity: 0;
  transition: var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  display: block;
}

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

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

/* Tech Stack Section */
.tech-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-glow);
  border-bottom: 1px solid var(--border-glow);
  padding: 5rem 2rem;
  margin-bottom: 6rem;
}

.tech-container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.tech-item {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-glow);
  padding: 1.5rem;
  border-radius: 8px;
}

.tech-name {
  display: block;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.tech-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Changelog / Text Content Layouts */
.content-wrapper {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 2rem 6rem;
}

.content-wrapper h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: var(--grad-sonic);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.content-wrapper h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  border-bottom: 1px solid var(--border-glow);
  padding-bottom: 0.5rem;
}

.content-wrapper h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}

.content-wrapper p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.content-wrapper ul {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.content-wrapper li {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.content-wrapper li strong {
  color: var(--text-primary);
}

.content-wrapper hr {
  border: 0;
  height: 1px;
  background: var(--border-glow);
  margin: 3rem 0;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-glow);
  background: #06070a;
  padding: 3rem 2rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-container p {
  margin-bottom: 0.5rem;
}

.footer-sub {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.2);
}

/* Responsiveness */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.75rem;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .site-nav {
    display: none; /* Add toggle menu on mobile for complex sites, or simplified inline links */
  }
  
  .header-container {
    flex-direction: column;
    gap: 1rem;
  }
  
  .site-nav {
    display: flex;
    gap: 1rem;
  }
}