:root {
  --bg-primary: #07090e;
  --bg-secondary: #0e131f;
  --bg-card: rgba(18, 24, 38, 0.7);
  --bg-card-hover: rgba(26, 35, 55, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(56, 189, 248, 0.3);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --accent-cyan: #06b6d4;
  --accent-blue: #3b82f6;
  --accent-indigo: #6366f1;
  --accent-green: #10b981;
  --accent-purple: #a855f7;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Ambient dynamic backdrop glow */
.ambient-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  background: 
    radial-gradient(circle at 15% 20%, rgba(6, 182, 212, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 85% 15%, rgba(99, 102, 241, 0.14) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(16, 185, 129, 0.08) 0%, transparent 50%);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Header & Nav */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  background: rgba(7, 9, 14, 0.75);
  border-bottom: 1px solid var(--border-subtle);
  padding: 16px 0;
  transition: all 0.3s ease;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.4);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-github {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.25s ease;
}

.btn-github:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.pill-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  line-height: 1.15;
  font-weight: 800;
  max-width: 900px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, #ffffff 30%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero h1 span.gradient-text {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p.lead {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 40px;
}

/* Download Action Buttons */
.download-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 24px;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: 600;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.download-btn-windows {
  background: linear-gradient(135deg, #0078d6, #005a9e);
  color: #ffffff;
  box-shadow: 0 8px 25px rgba(0, 120, 214, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.download-btn-windows:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 35px rgba(0, 120, 214, 0.5);
}

.download-btn-android {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #ffffff;
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.download-btn-android:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 35px rgba(16, 185, 129, 0.5);
}

.btn-icon {
  font-size: 1.8rem;
}

.btn-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.btn-title {
  font-size: 1.05rem;
  font-weight: 700;
}

.btn-sub {
  font-size: 0.78rem;
  opacity: 0.85;
}

.hero-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  color: var(--text-dim);
  font-size: 0.88rem;
}

.hero-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Interactive Device Preview Showcase */
.showcase-wrapper {
  margin: 60px auto;
  max-width: 980px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 40px rgba(6, 182, 212, 0.08);
  backdrop-filter: blur(20px);
}

.tab-nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.tab-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
}

.tab-btn.active {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(59, 130, 246, 0.2));
  border-color: var(--accent-cyan);
  color: var(--text-main);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.25);
}

.preview-screen {
  background: #04060a;
  border: 2px solid #1e293b;
  border-radius: 16px;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.8);
}

.preview-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 18px;
  background: #090d16;
  border-bottom: 1px solid #1e293b;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-green);
  font-weight: 600;
}

.tab-content {
  display: none;
  flex: 1;
  padding: 30px;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.tab-content.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Trackpad Simulated UI */
.trackpad-box {
  width: 100%;
  max-width: 520px;
  height: 280px;
  background: radial-gradient(circle at center, #101626, #090e1a);
  border: 1px dashed rgba(56, 189, 248, 0.3);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: grab;
  user-select: none;
}

.trackpad-cursor {
  width: 32px;
  height: 32px;
  background: rgba(6, 182, 212, 0.2);
  border: 2px solid var(--accent-cyan);
  border-radius: 50%;
  position: absolute;
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: width 0.15s, height 0.15s;
  box-shadow: 0 0 15px var(--accent-cyan);
}

.trackpad-buttons {
  display: flex;
  width: 100%;
  max-width: 520px;
  margin-top: 12px;
  gap: 12px;
}

.touch-btn {
  flex: 1;
  padding: 14px;
  background: #111726;
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  color: var(--text-muted);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.touch-btn:hover, .touch-btn:active {
  background: #1e293b;
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

/* Gamepad Simulated UI */
.gamepad-box {
  display: flex;
  justify-content: space-around;
  align-items: center;
  width: 100%;
  max-width: 580px;
  gap: 30px;
}

.dpad {
  display: grid;
  grid-template-columns: repeat(3, 45px);
  grid-template-rows: repeat(3, 45px);
  gap: 4px;
}

.dpad-btn {
  background: #1a2333;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
}

.dpad-btn:hover {
  background: var(--accent-cyan);
  color: #000;
}

.dpad-up { grid-column: 2; grid-row: 1; }
.dpad-left { grid-column: 1; grid-row: 2; }
.dpad-center { grid-column: 2; grid-row: 2; background: #0e1420; }
.dpad-right { grid-column: 3; grid-row: 2; }
.dpad-down { grid-column: 2; grid-row: 3; }

.abxy-cluster {
  display: grid;
  grid-template-columns: repeat(3, 45px);
  grid-template-rows: repeat(3, 45px);
  gap: 6px;
}

.abxy-btn {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: transform 0.1s, box-shadow 0.1s;
}

.abxy-btn:active { transform: scale(0.9); }
.btn-y { grid-column: 2; grid-row: 1; background: #eab308; color: #000; }
.btn-x { grid-column: 1; grid-row: 2; background: #3b82f6; color: #fff; }
.btn-b { grid-column: 3; grid-row: 2; background: #ef4444; color: #fff; }
.btn-a { grid-column: 2; grid-row: 3; background: #22c55e; color: #000; }

/* 3-Step Setup Section */
.setup-section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-header h2 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  transition: all 0.3s ease;
  backdrop-filter: blur(16px);
}

.step-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), 0 0 25px rgba(6, 182, 212, 0.1);
}

.step-number {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.step-card h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.step-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.step-highlight {
  display: inline-block;
  margin-top: 14px;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-cyan);
}

/* Features Grid */
.features-section {
  padding: 60px 0 80px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.feature-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: border-color 0.25s, transform 0.25s;
}

.feature-box:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}

.feature-box h4 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.feature-box p {
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* FAQ Accordion */
.faq-section {
  padding: 60px 0 100px;
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
}

.faq-question {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  cursor: pointer;
  user-select: none;
}

.faq-answer {
  display: none;
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.faq-item.open .faq-answer {
  display: block;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-subtle);
  padding: 40px 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.9rem;
}

footer a {
  color: var(--text-muted);
  text-decoration: none;
}

footer a:hover {
  color: var(--accent-cyan);
}

/* Responsive tweaks */
@media (max-width: 768px) {
  .hero h1 { font-size: 2.3rem; }
  .download-btn { width: 100%; justify-content: center; }
  .nav-links { display: none; }
}