/* ==========================================================================
   SwiftShare — Design System & Stylesheet
   Theme: Cosmic Midnight / Aurora Neon Glassmorphism
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-dark: #070814;
  --bg-card: rgba(15, 19, 44, 0.65);
  --bg-card-hover: rgba(26, 32, 70, 0.75);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-neon: rgba(99, 102, 241, 0.35);
  --border-cyan: rgba(56, 189, 248, 0.4);
  
  --primary: #6366f1;
  --primary-glow: rgba(99, 102, 241, 0.45);
  --cyan: #38bdf8;
  --cyan-glow: rgba(56, 189, 248, 0.45);
  --purple: #8b5cf6;
  --purple-glow: rgba(139, 92, 246, 0.45);
  --pink: #ec4899;
  --pink-glow: rgba(236, 72, 153, 0.35);
  --emerald: #10b981;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  /* Typography */
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'Space Grotesk', monospace;
  --font-note: 'Caveat', cursive, sans-serif;
  
  /* Layout */
  --max-width: 1240px;
  --header-h: 74px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --trans-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --trans-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

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

/* Ambient Cosmic Background Canvas & Orbs */
.stars-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -3;
  pointer-events: none;
}

.cosmic-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: -2;
  opacity: 0.35;
  will-change: transform;
}

.glow-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #6366f1 0%, transparent 70%);
  top: -100px;
  left: 30%;
  animation: floatOrb 18s ease-in-out infinite alternate;
}

.glow-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #ec4899 0%, transparent 70%);
  top: 40%;
  right: -100px;
  animation: floatOrb 22s ease-in-out infinite alternate-reverse;
}

.glow-3 {
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, #38bdf8 0%, transparent 70%);
  bottom: 10%;
  left: -150px;
  animation: floatOrb 26s ease-in-out infinite alternate;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 40px) scale(1.1); }
  100% { transform: translate(-40px, 80px) scale(0.95); }
}

/* Mountain Silhouette Divider */
.mountain-divider {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 120px;
  background: linear-gradient(to top, rgba(7, 8, 20, 0.95), transparent);
  pointer-events: none;
  z-index: 1;
}

/* Typography Helpers */
.gradient-text {
  background: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Design Annotations (Hand-drawn / Mockup notes) */
.design-annotation {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #a78bfa;
  font-family: var(--font-note);
  font-size: 1.15rem;
  letter-spacing: 0.5px;
  pointer-events: none;
  z-index: 10;
  text-shadow: 0 0 10px rgba(167, 139, 250, 0.4);
  opacity: 0.85;
}

.design-annotation .note-text {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #c4b5fd;
  border: 1px dashed rgba(196, 181, 253, 0.4);
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: rgba(109, 40, 217, 0.15);
  backdrop-filter: blur(4px);
}

.design-annotation .calligraphy-text {
  font-family: var(--font-note);
  font-size: 2.2rem;
  font-weight: 600;
  color: #e0e7ff;
  transform: rotate(-12deg);
  display: inline-block;
  line-height: 1;
  text-shadow: 0 0 16px rgba(139, 92, 246, 0.6);
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  position: relative;
  padding: 110px 0;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
  position: relative;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: inline-block;
}

.section-title {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.08rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   NAVIGATION BARS
   ========================================================================== */

/* Top Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  background: rgba(7, 8, 20, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  z-index: 1000;
  transition: var(--trans-smooth);
}

.navbar.scrolled {
  background: rgba(7, 8, 20, 0.9);
  border-bottom-color: rgba(99, 102, 241, 0.2);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
  max-width: var(--max-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #ffffff;
}

.brand-icon-wrapper {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.2);
}

.brand-svg {
  width: 32px;
  height: 32px;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(to right, #ffffff, #c7d2fe);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--trans-fast);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--cyan);
  border-radius: var(--radius-full);
  box-shadow: 0 0 8px var(--cyan);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: var(--trans-fast);
}

/* Sticky Vertical Progress Sidebar */
.side-nav {
  position: fixed;
  right: 28px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 16px;
  z-index: 990;
}

.side-nav-counter {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  display: flex;
  align-items: baseline;
  gap: 2px;
  padding-right: 6px;
}

.side-nav-counter .current-step {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--cyan);
  text-shadow: 0 0 10px var(--cyan-glow);
}

.side-nav-counter .total-steps {
  color: var(--text-dim);
  font-size: 0.8rem;
}

.side-nav-track {
  width: 2px;
  height: 180px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  position: relative;
  margin-right: 8px;
}

.side-nav-indicator {
  position: absolute;
  top: 0;
  left: -1px;
  width: 4px;
  height: 24px;
  background: linear-gradient(to bottom, var(--cyan), var(--purple));
  border-radius: 4px;
  box-shadow: 0 0 10px var(--cyan);
  transition: top 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.side-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-end;
}

.side-nav-list .nav-item {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 500;
  font-family: var(--font-mono);
  transition: var(--trans-fast);
  padding: 2px 6px;
  border-radius: 4px;
  position: relative;
}

.side-nav-list .nav-item:hover {
  color: var(--text-muted);
}

.side-nav-list .nav-item.active {
  color: #ffffff;
  font-weight: 700;
  text-shadow: 0 0 8px var(--purple-glow);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 26px;
  border-radius: var(--radius-full);
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--trans-fast);
  border: 1px solid transparent;
  outline: none;
}

.btn-download-nav {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.3));
  border-color: rgba(139, 92, 246, 0.5);
  color: #ffffff;
  padding: 9px 18px;
  font-size: 0.88rem;
  backdrop-filter: blur(8px);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.2);
}

.btn-download-nav:hover {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.4), rgba(139, 92, 246, 0.5));
  border-color: var(--cyan);
  box-shadow: 0 0 25px rgba(56, 189, 248, 0.4);
  transform: translateY(-2px);
}

.btn-primary-neon {
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #9333ea 100%);
  color: #ffffff;
  box-shadow: 0 0 25px rgba(124, 58, 237, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(167, 139, 250, 0.4);
  position: relative;
  overflow: hidden;
}

.btn-primary-neon::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transition: 0.5s;
}

.btn-primary-neon:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 0 35px rgba(124, 58, 237, 0.75), 0 0 15px rgba(56, 189, 248, 0.4);
}

.btn-primary-neon:hover::before {
  left: 100%;
}

.btn-glass {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  backdrop-filter: blur(12px);
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-outline-glow {
  background: transparent;
  border: 1px solid var(--border-cyan);
  color: var(--cyan);
  padding: 10px 22px;
}

.btn-outline-glow:hover {
  background: rgba(56, 189, 248, 0.1);
  box-shadow: 0 0 20px var(--cyan-glow);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1.05rem;
}

.btn-xl {
  padding: 18px 42px;
  font-size: 1.2rem;
  letter-spacing: 0.5px;
}

.icon-android {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.icon-arrow {
  width: 18px;
  height: 18px;
  transition: transform var(--trans-fast);
}

.btn:hover .icon-arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   SECTION 01: HERO
   ========================================================================== */

.section-hero {
  padding-top: calc(var(--header-h) + 40px);
  padding-bottom: 120px;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 40px;
}

.eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.3);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--cyan);
  margin-bottom: 24px;
}

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

@keyframes pulseDot {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(56, 189, 248, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(56, 189, 248, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(56, 189, 248, 0); }
}

.hero-title {
  font-size: clamp(3.2rem, 6.5vw, 5.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #ffffff 10%, #c7d2fe 40%, #818cf8 80%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 18px;
}

.hero-subtitle {
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  font-weight: 700;
  color: #e2e8f0;
  line-height: 1.25;
  margin-bottom: 16px;
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.6;
  margin-bottom: 28px;
}

.hero-pill-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  font-size: 0.85rem;
  color: var(--text-main);
}

.hero-cta-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 40px;
}

.social-proof {
  display: flex;
  align-items: center;
  gap: 16px;
}

.avatar-stack {
  display: flex;
  align-items: center;
}

.avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid var(--bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: #1e1b4b;
  margin-left: -8px;
}

.avatar:first-child {
  margin-left: 0;
}

.proof-text {
  display: flex;
  flex-direction: column;
}

.proof-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: #f1f5f9;
}

.proof-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Hero Phone Mockup Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1200px;
}

.phone-mockup-wrapper {
  position: relative;
  width: 310px;
  height: 610px;
  transform: rotate3d(1, 1, 0, 8deg);
  transition: transform 0.4s ease-out;
  transform-style: preserve-3d;
}

.phone-ambient-glow {
  position: absolute;
  width: 360px;
  height: 660px;
  top: -25px;
  left: -25px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, rgba(56, 189, 248, 0.2) 50%, transparent 70%);
  filter: blur(50px);
  z-index: 0;
  border-radius: 60px;
}

.phone-frame {
  position: relative;
  width: 100%;
  height: 100%;
  background: linear-gradient(145deg, #1e2238 0%, #0d0f1d 100%);
  border: 4px solid #333a56;
  border-radius: 46px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.8),
              0 0 40px rgba(99, 102, 241, 0.3),
              inset 0 0 12px rgba(255, 255, 255, 0.15);
  overflow: hidden;
  z-index: 1;
}

.phone-camera {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  background: #000;
  border-radius: 50%;
  border: 2px solid #22263d;
  z-index: 20;
}

.phone-screen {
  position: absolute;
  inset: 6px;
  background: radial-gradient(circle at 50% 30%, #151838 0%, #080a18 100%);
  border-radius: 40px;
  display: flex;
  flex-direction: column;
  padding: 18px 20px;
  overflow: hidden;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.app-branding {
  text-align: center;
  margin-bottom: 28px;
}

.app-logo-small {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  margin: 0 auto 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 18px var(--purple-glow);
}

.app-logo-small .app-dot {
  width: 14px;
  height: 14px;
  background: #fff;
  border-radius: 50%;
}

.app-name {
  display: block;
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
}

.app-tagline {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.app-radar {
  position: relative;
  width: 160px;
  height: 160px;
  margin: 10px auto 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.radar-circle {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.radar-outer {
  width: 100%;
  height: 100%;
  animation: radarPulse 3s infinite linear;
}

.radar-mid {
  width: 70%;
  height: 70%;
  border-color: rgba(139, 92, 246, 0.4);
  animation: radarPulse 3s 1s infinite linear;
}

.radar-core {
  width: 45%;
  height: 45%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.3) 0%, rgba(99, 102, 241, 0.6) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--cyan);
}

.radar-icon {
  width: 26px;
  height: 26px;
}

@keyframes radarPulse {
  0% { transform: scale(0.8); opacity: 0.8; }
  100% { transform: scale(1.3); opacity: 0; }
}

.app-actions {
  display: flex;
  gap: 12px;
  margin-bottom: auto;
}

.app-btn {
  flex: 1;
  padding: 12px;
  border-radius: var(--radius-md);
  border: none;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  color: #fff;
}

.app-btn-send {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.app-btn-receive {
  background: linear-gradient(135deg, #0ea5e9, #2563eb);
  box-shadow: 0 4px 15px rgba(14, 165, 233, 0.4);
}

.app-bottom-nav {
  display: flex;
  justify-content: space-around;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 12px;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.app-bottom-nav .active {
  color: var(--cyan);
  font-weight: 600;
}

/* Floating Holographic File Bubbles */
.floating-icon {
  position: absolute;
  padding: 8px 14px;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #fff;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5), 0 0 15px rgba(99, 102, 241, 0.3);
  z-index: 10;
  animation: floatFileBubble 6s ease-in-out infinite alternate;
  pointer-events: auto;
}

.floating-icon:hover {
  transform: scale(1.1) !important;
  border-color: var(--cyan);
  box-shadow: 0 0 25px var(--cyan-glow);
}

.icon-image { top: 40px; left: -60px; animation-delay: 0s; }
.icon-video { top: 160px; right: -70px; animation-delay: 1.2s; }
.icon-audio { bottom: 220px; left: -75px; animation-delay: 2.4s; }
.icon-doc   { bottom: 90px; right: -60px; animation-delay: 0.8s; }
.icon-apk   { top: 290px; left: -85px; animation-delay: 3s; border-color: rgba(56, 189, 248, 0.4); }

@keyframes floatFileBubble {
  0% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(2deg); }
  100% { transform: translateY(8px) rotate(-2deg); }
}

/* Annotations Placement */
.note-floating-icons {
  top: -20px;
  left: 20px;
}

.note-device-rotate {
  top: -25px;
  right: 60px;
}

.note-share-limits {
  right: -100px;
  top: 180px;
}

/* Scroll Down Pill */
.scroll-down-indicator {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 2px;
  z-index: 10;
  transition: var(--trans-fast);
}

.scroll-down-indicator:hover {
  color: #fff;
}

.mouse-icon {
  width: 22px;
  height: 34px;
  border: 2px solid rgba(255, 255, 255, 0.25);
  border-radius: 14px;
  position: relative;
}

.mouse-icon .wheel {
  width: 4px;
  height: 6px;
  background: var(--cyan);
  border-radius: 2px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollWheel 2s infinite;
}

@keyframes scrollWheel {
  0% { transform: translate(-50%, 0); opacity: 1; }
  100% { transform: translate(-50%, 12px); opacity: 0; }
}

/* ==========================================================================
   SECTION 02: THE STORY
   ========================================================================== */

.section-story {
  padding-top: 60px;
}

.story-stage {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 40px;
}

.note-story-scroll {
  top: -30px;
  left: 120px;
}

.note-line-draw {
  bottom: 120px;
  left: 50%;
  transform: translateX(-50%);
}

.note-parallax-file {
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
}

.devices-transfer-arena {
  width: 100%;
  max-width: 860px;
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.mini-phone {
  width: 180px;
  height: 320px;
  background: linear-gradient(145deg, #181c33 0%, #0d0f1f 100%);
  border: 3px solid #2d3450;
  border-radius: 32px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7), 0 0 25px rgba(99, 102, 241, 0.25);
  padding: 8px;
  z-index: 5;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.sender-phone {
  transform: rotate(-6deg);
}

.receiver-phone {
  transform: rotate(6deg);
}

.mini-screen {
  width: 100%;
  height: 100%;
  background: #090b17;
  border-radius: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 14px;
  text-align: center;
}

.mini-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.72rem;
}

.device-tag {
  color: var(--cyan);
  font-weight: 700;
}

.mini-center-radar {
  position: relative;
  margin: auto 0;
}

.status-badge {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(99, 102, 241, 0.25);
  border: 1px solid rgba(99, 102, 241, 0.4);
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  color: #c7d2fe;
}

.mini-footer-btn {
  padding: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* Curved Transfer Stream */
.transfer-stream-wrapper {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 580px;
  height: 220px;
  pointer-events: none;
  z-index: 2;
}

.stream-svg {
  width: 100%;
  height: 100%;
}

.laser-path {
  stroke-dasharray: 20 180;
  animation: laserStream 3s linear infinite;
}

@keyframes laserStream {
  from { stroke-dashoffset: 200; }
  to { stroke-dashoffset: 0; }
}

.flying-file {
  position: absolute;
  width: 36px;
  height: 36px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(56, 189, 248, 0.4);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.4);
  font-size: 1.1rem;
  animation: flyAlongPath 4s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.file-1 { animation-delay: 0s; }
.file-2 { animation-delay: 1s; }
.file-3 { animation-delay: 2s; }
.file-4 { animation-delay: 3s; }

@keyframes flyAlongPath {
  0% {
    top: 75%;
    left: 10%;
    opacity: 0;
    transform: scale(0.6);
  }
  20% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    top: 25%;
    left: 50%;
  }
  80% {
    opacity: 1;
    transform: scale(1);
  }
  100% {
    top: 75%;
    left: 90%;
    opacity: 0;
    transform: scale(0.6);
  }
}

.story-callout-card {
  margin-top: 20px;
  text-align: center;
  max-width: 540px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  padding: 24px 32px;
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
}

.callout-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 6px;
}

.callout-heading {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.callout-text {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ==========================================================================
   SECTION 03: HOW IT WORKS
   ========================================================================== */

.note-stagger {
  top: -15px;
  right: 20px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  position: relative;
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  transition: all var(--trans-smooth);
}

.step-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-cyan);
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(56, 189, 248, 0.25);
}

.step-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.step-number {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 12px var(--cyan-glow);
}

.step-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.step-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 24px;
  flex-grow: 1;
}

.step-visual {
  height: 110px;
  background: rgba(7, 8, 20, 0.5);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-svg {
  width: 52px;
  height: 52px;
}

.step-arrow {
  position: absolute;
  right: -16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--cyan);
  font-size: 1.4rem;
  font-weight: 700;
  z-index: 10;
  text-shadow: 0 0 8px var(--cyan);
}

/* ==========================================================================
   SECTION 04: FEATURES
   ========================================================================== */

.features-arena {
  display: grid;
  grid-template-columns: 1fr 320px 1fr;
  align-items: center;
  gap: 36px;
  position: relative;
  margin-top: 30px;
}

.note-card-parallax {
  top: -30px;
  left: 45%;
}

.note-glow-viewport {
  top: -20px;
  right: 40px;
}

.features-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feature-glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  gap: 18px;
  backdrop-filter: blur(14px);
  transition: all var(--trans-smooth);
}

.feature-glass-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(99, 102, 241, 0.45);
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 20px rgba(99, 102, 241, 0.3);
}

.card-icon-circle {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.card-icon-circle svg {
  width: 24px;
  height: 24px;
}

.icon-lightning { background: rgba(56, 189, 248, 0.15); color: var(--cyan); box-shadow: 0 0 15px var(--cyan-glow); }
.icon-offline   { background: rgba(236, 72, 153, 0.15); color: var(--pink); box-shadow: 0 0 15px var(--pink-glow); }
.icon-devices   { background: rgba(99, 102, 241, 0.15); color: var(--primary); box-shadow: 0 0 15px var(--primary-glow); }
.icon-security  { background: rgba(16, 185, 129, 0.15); color: var(--emerald); box-shadow: 0 0 15px rgba(16, 185, 129, 0.4); }
.icon-batch     { background: rgba(139, 92, 246, 0.15); color: var(--purple); box-shadow: 0 0 15px var(--purple-glow); }
.icon-qr        { background: rgba(245, 158, 11, 0.15); color: #f59e0b; box-shadow: 0 0 15px rgba(245, 158, 11, 0.4); }

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Center Phone Spotlight in Features */
.features-center-phone {
  position: relative;
  display: flex;
  justify-content: center;
}

.phone-glow-ring {
  position: absolute;
  width: 340px;
  height: 520px;
  top: -10px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, rgba(56, 189, 248, 0.25) 50%, transparent 70%);
  filter: blur(40px);
  border-radius: 50px;
}

.center-phone-frame {
  position: relative;
  width: 260px;
  height: 500px;
  background: linear-gradient(145deg, #1b1f38, #0e1022);
  border: 3px solid #33395c;
  border-radius: 38px;
  padding: 6px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.8), 0 0 30px rgba(99, 102, 241, 0.35);
}

.phone-screen-features {
  width: 100%;
  height: 100%;
  background: #090a19;
  border-radius: 32px;
  padding: 16px;
  display: flex;
  flex-direction: column;
}

.features-app-top {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 30px;
}

.feat-badge {
  color: var(--cyan);
  font-weight: 700;
}

.features-app-body {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: auto;
  margin-bottom: auto;
}

.app-icon-hex {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 0 20px var(--cyan-glow);
  margin-bottom: 12px;
}

.app-hero-name {
  font-size: 1.3rem;
  font-weight: 800;
}

.app-status {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.app-radar-mini {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 1px dashed rgba(56, 189, 248, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
}

.mini-pulsar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 15px var(--cyan);
  animation: radarPulse 2s infinite ease-out;
}

.app-mini-buttons {
  display: flex;
  gap: 10px;
  width: 100%;
}

.btn-m {
  flex: 1;
  padding: 8px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 700;
}

.btn-send { background: var(--primary); color: #fff; }
.btn-rec  { background: rgba(255, 255, 255, 0.1); color: #fff; }

/* ==========================================================================
   SECTION 05: SPECIFICATIONS
   ========================================================================== */

.specs-layout {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 36px;
  align-items: center;
}

.specs-grid-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
}

.spec-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.95rem;
}

.spec-row:last-child {
  border-bottom: none;
}

.spec-label {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.spec-icon {
  font-size: 1.15rem;
}

.spec-val {
  font-family: var(--font-mono);
  font-weight: 600;
  color: #fff;
  text-align: right;
}

.highlight-green  { color: #34d399 !important; }
.highlight-cyan   { color: #38bdf8 !important; }
.highlight-purple { color: #c084fc !important; }

/* Right Magnetic CTA Card */
.specs-cta-card {
  position: relative;
  background: linear-gradient(145deg, rgba(16, 185, 129, 0.08) 0%, rgba(99, 102, 241, 0.12) 100%);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-lg);
  padding: 44px 36px;
  text-align: center;
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px rgba(56, 189, 248, 0.2);
  transition: transform var(--trans-fast);
}

.note-magnetic {
  bottom: -25px;
  right: 20px;
}

.android-hero-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  border-radius: 20px;
  background: rgba(16, 185, 129, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 30px rgba(16, 185, 129, 0.35);
}

.android-hero-icon svg {
  width: 44px;
  height: 44px;
}

.cta-title {
  font-size: 1.55rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.cta-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.specs-cta-card .btn {
  width: 100%;
}

.cta-micro-specs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ==========================================================================
   SECTION 06: LIVE TRANSFER
   ========================================================================== */

.note-ring-progress {
  top: -15px;
  right: 40px;
}

.live-transfer-arena {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  margin-top: 30px;
}

.speedometer-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.speedometer-svg-wrapper {
  position: relative;
  width: 320px;
  height: 320px;
}

.speedometer-svg {
  width: 100%;
  height: 100%;
  transform: rotate(0deg);
}

.speedometer-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.live-speed-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 8px;
}

.speed-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: pulseDot 1.5s infinite;
}

.live-percentage {
  font-size: 3.2rem;
  font-weight: 900;
  font-family: var(--font-mono);
  line-height: 1;
  background: linear-gradient(135deg, #fff 0%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
}

.live-bytes {
  font-size: 0.88rem;
  font-family: var(--font-mono);
  color: #cbd5e1;
  margin-bottom: 4px;
}

.live-status {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* Orbiting files */
.orbit-file {
  position: absolute;
  width: 34px;
  height: 34px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

.of-1 { top: 10px; left: 45%; }
.of-2 { top: 50%; right: 0px; }
.of-3 { bottom: 10px; left: 45%; }
.of-4 { top: 50%; left: 0px; }

/* Transfer Manifest Card */
.transfer-manifest-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
}

.manifest-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.manifest-title {
  font-size: 1.5rem;
  font-weight: 800;
}

.manifest-types {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.manifest-eta {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--cyan);
  padding: 4px 10px;
  background: rgba(56, 189, 248, 0.1);
  border-radius: 6px;
}

.manifest-progress-track {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 24px;
}

.manifest-progress-fill {
  height: 100%;
  background: linear-gradient(to right, var(--cyan), var(--purple));
  border-radius: var(--radius-full);
  box-shadow: 0 0 10px var(--cyan);
  transition: width 0.3s ease;
}

.manifest-file-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.manifest-file-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  background: rgba(7, 8, 20, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
}

.mf-icon {
  font-size: 1.25rem;
}

.mf-info {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.mf-name {
  font-weight: 600;
  color: #fff;
}

.mf-size {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.mf-status {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
}

.manifest-file-item.done .mf-status { color: #34d399; }
.manifest-file-item.in-progress .mf-status { color: var(--cyan); }
.manifest-file-item.queued .mf-status { color: var(--text-dim); }

.manifest-controls {
  display: flex;
  gap: 12px;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.82rem;
}

/* ==========================================================================
   SECTION 07: WHY SWIFTSHARE (SECURITY)
   ========================================================================== */

.security-badges-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 18px;
}

.sec-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: #cbd5e1;
}

.security-stage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  position: relative;
  margin-top: 30px;
}

.note-particle-shield {
  top: -20px;
  left: 20%;
}

.note-parallax-depth {
  top: -15px;
  right: 30px;
}

.shield-visual-container {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 380px;
}

.shield-glow-aura {
  position: absolute;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.4) 0%, rgba(99, 102, 241, 0.25) 50%, transparent 70%);
  filter: blur(50px);
}

.shield-svg-box {
  width: 200px;
  height: 240px;
  z-index: 5;
  filter: drop-shadow(0 0 25px rgba(56, 189, 248, 0.4));
  animation: floatShield 5s ease-in-out infinite alternate;
}

@keyframes floatShield {
  0% { transform: translateY(0px) scale(1); }
  100% { transform: translateY(-10px) scale(1.03); }
}

.particle-ray {
  position: absolute;
  width: 60px;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--cyan));
  box-shadow: 0 0 8px var(--cyan);
}

.pr-1 { top: 35%; left: 15%; transform: rotate(20deg); animation: shootParticle 2.5s infinite; }
.pr-2 { bottom: 30%; left: 10%; transform: rotate(-25deg); animation: shootParticle 3s 0.8s infinite; }
.pr-3 { top: 25%; right: 20%; transform: rotate(-160deg); animation: shootParticle 2.8s 1.5s infinite; }

@keyframes shootParticle {
  0% { opacity: 0; transform: scaleX(0.2); }
  50% { opacity: 1; transform: scaleX(1); }
  100% { opacity: 0; transform: scaleX(0.2); }
}

.security-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(16px);
}

.sec-card-title {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.sec-card-text {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 24px;
}

.sec-bullet-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}

.sec-bullet-list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.95rem;
  color: #e2e8f0;
}

.sec-bullet-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-weight: 800;
}

/* ==========================================================================
   SECTION 08: GET STARTED (FINAL CTA)
   ========================================================================== */

.download-banner {
  background: radial-gradient(circle at 70% 50%, rgba(99, 102, 241, 0.15) 0%, rgba(15, 19, 44, 0.8) 70%);
  border: 1px solid var(--border-neon);
  border-radius: 36px;
  padding: 60px 48px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 40px;
  position: relative;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.8), 0 0 50px rgba(99, 102, 241, 0.2);
  backdrop-filter: blur(20px);
}

.note-neon-pulse {
  top: -20px;
  left: 300px;
}

.note-mask-reveal {
  bottom: 20px;
  right: 80px;
}

.download-headline {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 14px;
}

.download-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.download-features-row {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
}

.df-tag {
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: #f1f5f9;
}

.download-cta-wrapper {
  margin-bottom: 16px;
}

.download-note {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.download-phone-showcase {
  position: relative;
  display: flex;
  justify-content: center;
}

.phone-glow-bg {
  position: absolute;
  width: 260px;
  height: 420px;
  background: radial-gradient(circle, var(--purple-glow) 0%, transparent 70%);
  filter: blur(40px);
}

.phone-frame.mini {
  width: 220px;
  height: 420px;
  border-radius: 34px;
  transform: rotate3d(1, -1, 0, 10deg);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
  border-top: 1px solid var(--border-glass);
  padding: 60px 0 36px;
  background: #04050d;
}

.footer-container {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: center;
  gap: 32px;
}

.footer-slogan {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 8px;
}

.version-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan);
  margin-top: 6px;
}

.footer-links-col {
  display: flex;
  justify-content: center;
  gap: 24px;
}

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

.footer-links-col a:hover {
  color: #fff;
}

.footer-action-col {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.footer-credit {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* Floating Scroll Top Button */
.scroll-top-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid var(--border-glass);
  color: var(--cyan);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(12px);
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transition: all var(--trans-fast);
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top-btn:hover {
  background: rgba(56, 189, 248, 0.2);
  border-color: var(--cyan);
  transform: translateY(-4px);
  box-shadow: 0 0 20px var(--cyan-glow);
}

.scroll-top-btn svg {
  width: 22px;
  height: 22px;
}

/* ==========================================================================
   MODAL: DIRECT APK DOWNLOAD & ANDROID INSTALL GUIDE
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 5, 13, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--trans-smooth);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  width: 100%;
  max-width: 580px;
  background: linear-gradient(145deg, #10142b 0%, #090b17 100%);
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: 28px;
  padding: 32px;
  position: relative;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.9), 0 0 50px rgba(99, 102, 241, 0.3);
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.92) translateY(20px);
  transition: transform var(--trans-smooth);
}

.modal-backdrop.open .modal-card {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--trans-fast);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.modal-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.modal-app-badge {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(99, 102, 241, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--cyan-glow);
}

.modal-title {
  font-size: 1.45rem;
  font-weight: 800;
}

.modal-version-sub {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Simulated Download Card */
.download-status-card {
  background: rgba(7, 8, 20, 0.6);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 20px;
}

.status-top {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.status-state { color: var(--cyan); }
.status-pct { font-family: var(--font-mono); }

.modal-progress-bar {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 10px;
}

.modal-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(to right, var(--cyan), var(--purple));
  box-shadow: 0 0 12px var(--cyan);
  transition: width 0.2s ease-out;
}

.status-bottom {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* Desktop QR Code Scan */
.modal-qr-section {
  display: flex;
  align-items: center;
  gap: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 20px;
}

.qr-box {
  width: 74px;
  height: 74px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

.qr-svg {
  width: 100%;
  height: 100%;
}

.qr-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.qr-text strong {
  color: #fff;
  font-size: 0.9rem;
}

/* Checksum box */
.checksum-box {
  background: rgba(7, 8, 20, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  margin-bottom: 22px;
}

.checksum-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.cs-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cs-copy-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(99, 102, 241, 0.2);
  border: 1px solid rgba(99, 102, 241, 0.4);
  color: var(--cyan);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--trans-fast);
}

.cs-copy-btn:hover {
  background: rgba(99, 102, 241, 0.4);
}

.copy-icon {
  width: 14px;
  height: 14px;
}

.checksum-code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: #a5b4fc;
  word-break: break-all;
  user-select: all;
}

/* 3-Step Install Guide */
.install-guide {
  margin-bottom: 20px;
}

.guide-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #f1f5f9;
}

.guide-steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.guide-step-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.02);
  border-left: 2px solid var(--primary);
  border-radius: 6px;
}

.g-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.g-body strong {
  display: block;
  font-size: 0.88rem;
  color: #fff;
}

.g-body p {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-top: 2px;
}

.modal-footer-help {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.manual-download-link {
  color: var(--cyan);
  text-decoration: underline;
  cursor: pointer;
  display: block;
  margin-top: 4px;
}

/* Security Modal Body */
.security-modal-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.sec-feat-item h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 4px;
}

/* ==========================================================================
   RESPONSIVE DESIGN (TABLETS & MOBILE)
   ========================================================================== */

@media (max-width: 1080px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-description {
    margin: 0 auto 28px;
  }

  .hero-pill-badges,
  .hero-cta-group,
  .social-proof {
    justify-content: center;
  }

  .side-nav {
    display: none;
  }

  .features-arena {
    grid-template-columns: 1fr;
  }

  .features-center-phone {
    order: -1;
    margin-bottom: 20px;
  }

  .specs-layout,
  .live-transfer-arena,
  .security-stage,
  .download-banner {
    grid-template-columns: 1fr;
  }

  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-action-col {
    align-items: center;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: 100%;
    background: rgba(7, 8, 20, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border-glass);
    display: none;
  }

  .nav-menu.open {
    display: flex;
  }

  .mobile-toggle {
    display: flex;
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

  .step-arrow {
    display: none;
  }

  .devices-transfer-arena {
    flex-direction: column;
    height: auto;
    gap: 20px;
  }

  .transfer-stream-wrapper {
    display: none;
  }

  .sender-phone,
  .receiver-phone {
    transform: none;
  }

  .design-annotation {
    display: none;
  }
}