/*
 * AppCaster — Cosmic Dark Design System
 * Aesthetic: Deep space noir + Holographic accents + Liquid glass
 * Typography: Golos Text (body) + Unbounded (display) - premium cyrillic fonts
 */

@import url('https://fonts.googleapis.com/css2?family=Golos+Text:wght@400;500;600;700;800&family=Unbounded:wght@400;500;600;700;800&display=swap');

:root {
  /* Core Colors - Apple-inspired */
  --color-bg: #000000;
  --color-bg-elevated: #0d0d0d;
  --color-bg-secondary: #161616;
  --color-bg-tertiary: #1c1c1e;
  --color-surface: #2c2c2e;
  --color-surface-hover: #3a3a3c;

  /* Legacy aliases for compatibility */
  --color-void: #000000;
  --color-abyss: #161616;
  --color-obsidian: #1c1c1e;
  --color-graphite: rgba(255, 255, 255, 0.08);
  --color-slate: rgba(255, 255, 255, 0.12);

  /* Text Colors */
  --color-text-primary: #f5f5f7;
  --color-text-secondary: #a1a1a6;
  --color-text-tertiary: #6e6e73;

  /* Legacy text aliases */
  --color-snow: #f5f5f7;
  --color-cloud: #a1a1a6;
  --color-mist: #6e6e73;

  /* Accent - Holographic Spectrum */
  --color-accent: #0a84ff;
  --color-accent-secondary: #5e5ce6;
  --color-accent-pink: #ff375f;
  --color-accent-orange: #ff9f0a;
  --color-accent-green: #30d158;
  --color-accent-teal: #64d2ff;

  /* Legacy accent aliases */
  --color-neon-blue: #0a84ff;
  --color-neon-purple: #5e5ce6;
  --color-neon-green: #30d158;
  --color-neon-pink: #ff375f;
  --color-coral: #ff375f;
  --color-gold: #ff9f0a;

  /* Holographic Gradient */
  --gradient-holographic: linear-gradient(
    135deg,
    #ff6b6b 0%,
    #feca57 15%,
    #48dbfb 30%,
    #ff9ff3 45%,
    #54a0ff 60%,
    #5f27cd 75%,
    #00d2d3 90%,
    #ff6b6b 100%
  );

  --gradient-apple: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-premium: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-blue: linear-gradient(135deg, #0a84ff 0%, #5e5ce6 100%);
  --gradient-aurora: linear-gradient(135deg, #0a84ff 0%, #5e5ce6 50%, #30d158 100%);
  --gradient-mesh: radial-gradient(at 40% 20%, #5e5ce6 0px, transparent 50%),
                   radial-gradient(at 80% 0%, #ff375f 0px, transparent 50%),
                   radial-gradient(at 0% 50%, #0a84ff 0px, transparent 50%),
                   radial-gradient(at 80% 50%, #30d158 0px, transparent 50%),
                   radial-gradient(at 0% 100%, #ff9f0a 0px, transparent 50%);

  /* Typography - Premium Cyrillic */
  --font-display: 'Unbounded', 'SF Pro Display', sans-serif;
  --font-system: 'Golos Text', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Border Radius - Apple style */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-3xl: 32px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(10, 132, 255, 0.3);
  --shadow-glow-pink: 0 0 40px rgba(255, 55, 95, 0.3);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 500ms;
}

/* ========================================
   Base Styles
   ======================================== */

* {
  font-family: var(--font-system);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-system);
  line-height: 1.5;
  letter-spacing: -0.01em;
}

::selection {
  background: var(--color-accent);
  color: white;
}

/* Scrollbar - Minimal Apple style */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-surface);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-surface-hover);
}

/* ========================================
   Typography - Cosmic Scale
   ======================================== */

.text-display {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.text-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.text-headline {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.text-body {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.65;
}

.text-caption {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.text-micro {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

/* Gradient Text */
.text-gradient {
  background: var(--gradient-holographic);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 8s ease infinite;
}

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

/* Display font helper */
.font-display {
  font-family: var(--font-display);
}

/* Section titles */
.section-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: 0;
}

/* Stat numbers */
.stat-number {
  font-family: var(--font-display);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* ========================================
   Glass Morphism
   ======================================== */

.glass {
  background: rgba(28, 28, 30, 0.72);
  backdrop-filter: blur(40px) saturate(180%);
  -webkit-backdrop-filter: blur(40px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.glass-light {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.glass-premium {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0.05) 100%
  );
  backdrop-filter: blur(40px) saturate(200%);
  -webkit-backdrop-filter: blur(40px) saturate(200%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Liquid glass card */
.glass-card {
  background: linear-gradient(
    165deg,
    rgba(22, 22, 22, 0.95) 0%,
    rgba(28, 28, 30, 0.9) 100%
  );
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow:
    0 4px 24px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

/* ========================================
   Cards
   ======================================== */

.card {
  background: var(--color-bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-xl);
  transition: all var(--duration-base) var(--ease-out);
}

.card:hover {
  background: var(--color-bg-tertiary);
  border-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card-interactive {
  cursor: pointer;
}

.card-interactive:hover {
  box-shadow: var(--shadow-glow);
}

.card-holographic {
  position: relative;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.card-holographic::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-holographic);
  background-size: 400% 400%;
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  animation: gradient-shift 8s ease infinite;
}

.card-holographic:hover::before {
  opacity: 0.1;
}

.card-holographic::after {
  content: '';
  position: absolute;
  inset: 1px;
  background: var(--color-bg-secondary);
  border-radius: calc(var(--radius-xl) - 1px);
  z-index: 1;
}

.card-holographic > * {
  position: relative;
  z-index: 2;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--duration-base) var(--ease-out);
  cursor: pointer;
  border: none;
  outline: none;
}

.btn-primary {
  background: var(--color-accent);
  color: white;
}

.btn-primary:hover {
  background: #0077ed;
  transform: scale(1.02);
  box-shadow: var(--shadow-glow);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-gradient {
  background: var(--gradient-holographic);
  background-size: 200% 200%;
  color: white;
  animation: gradient-shift 8s ease infinite;
}

.btn-gradient:hover {
  transform: scale(1.02);
  box-shadow: 0 0 30px rgba(94, 92, 230, 0.4);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
  background: var(--color-surface-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-ghost {
  background: transparent;
  color: var(--color-accent);
}

.btn-ghost:hover {
  background: rgba(10, 132, 255, 0.1);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: 1.0625rem;
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-md);
}

/* ========================================
   Inputs
   ======================================== */

.input {
  width: 100%;
  padding: var(--space-4);
  background: var(--color-bg-tertiary);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  color: var(--color-text-primary);
  font-size: 1rem;
  transition: all var(--duration-fast) var(--ease-out);
}

.input::placeholder {
  color: var(--color-text-tertiary);
}

.input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(10, 132, 255, 0.15);
}

.input-with-icon {
  padding-left: 48px;
}

/* ========================================
   Badges
   ======================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}

.badge-success {
  background: rgba(48, 209, 88, 0.15);
  color: var(--color-accent-green);
}

.badge-warning {
  background: rgba(255, 159, 10, 0.15);
  color: var(--color-accent-orange);
}

.badge-error {
  background: rgba(255, 55, 95, 0.15);
  color: var(--color-accent-pink);
}

.badge-info {
  background: rgba(10, 132, 255, 0.15);
  color: var(--color-accent);
}

.badge-processing {
  background: rgba(94, 92, 230, 0.15);
  color: var(--color-accent-secondary);
}

/* ========================================
   Progress Bar
   ======================================== */

.progress {
  height: 6px;
  background: var(--color-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-blue);
  border-radius: var(--radius-full);
  transition: width var(--duration-slow) var(--ease-out);
}

.progress-holographic .progress-fill {
  background: var(--gradient-holographic);
  background-size: 200% 200%;
  animation: gradient-shift 4s ease infinite;
}

.progress-aurora {
  height: 6px;
  background: var(--color-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-aurora-fill {
  height: 100%;
  background: var(--gradient-aurora);
  border-radius: var(--radius-full);
  transition: width var(--duration-slow) var(--ease-out);
}

/* Pulse glow animation */
.animate-pulse-glow {
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(10, 132, 255, 0.3); }
  50% { box-shadow: 0 0 40px rgba(10, 132, 255, 0.6); }
}

/* ========================================
   Animations
   ======================================== */

@keyframes gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

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

@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.8);
    opacity: 1;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.animate-fade-in {
  animation: fade-in var(--duration-base) var(--ease-out) forwards;
}

.animate-slide-up {
  animation: slide-up var(--duration-base) var(--ease-out) forwards;
}

.animate-slide-down {
  animation: slide-down var(--duration-base) var(--ease-out) forwards;
}

.animate-scale-in {
  animation: scale-in var(--duration-base) var(--ease-out) forwards;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

/* Stagger animations */
.stagger-1 { animation-delay: 0.05s; opacity: 0; }
.stagger-2 { animation-delay: 0.1s; opacity: 0; }
.stagger-3 { animation-delay: 0.15s; opacity: 0; }
.stagger-4 { animation-delay: 0.2s; opacity: 0; }
.stagger-5 { animation-delay: 0.25s; opacity: 0; }

/* ========================================
   Skeleton Loading
   ======================================== */

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-surface) 0%,
    var(--color-surface-hover) 50%,
    var(--color-surface) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

/* ========================================
   Divider
   ======================================== */

.divider {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
}

/* ========================================
   Glow Effects
   ======================================== */

.glow-blue {
  box-shadow: var(--shadow-glow);
}

.glow-pink {
  box-shadow: var(--shadow-glow-pink);
}

.glow-pulse {
  animation: glow-pulse 2s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(10, 132, 255, 0.3); }
  50% { box-shadow: 0 0 40px rgba(10, 132, 255, 0.5); }
}

/* ========================================
   Audio Waveform
   ======================================== */

.waveform {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 24px;
}

.waveform-bar {
  width: 3px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  animation: waveform 0.8s ease-in-out infinite;
}

@keyframes waveform {
  0%, 100% { height: 30%; }
  50% { height: 100%; }
}

.waveform-bar:nth-child(1) { animation-delay: 0s; }
.waveform-bar:nth-child(2) { animation-delay: 0.1s; }
.waveform-bar:nth-child(3) { animation-delay: 0.2s; }
.waveform-bar:nth-child(4) { animation-delay: 0.3s; }
.waveform-bar:nth-child(5) { animation-delay: 0.4s; }

/* ========================================
   Hover Effects
   ======================================== */

.hover-lift {
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.hover-scale {
  transition: transform var(--duration-base) var(--ease-spring);
}

.hover-scale:hover {
  transform: scale(1.02);
}

.hover-glow:hover {
  box-shadow: var(--shadow-glow);
}

/* ========================================
   Override Tailwind for Dark Theme
   ======================================== */

.bg-gray-50 { background: var(--color-bg) !important; }
.bg-white { background: var(--color-bg-secondary) !important; }
.text-gray-900 { color: var(--color-text-primary) !important; }
.text-gray-700 { color: var(--color-text-secondary) !important; }
.text-gray-600 { color: var(--color-text-secondary) !important; }
.text-gray-500 { color: var(--color-text-tertiary) !important; }
.border-gray-200 { border-color: rgba(255, 255, 255, 0.08) !important; }
.border-gray-300 { border-color: rgba(255, 255, 255, 0.1) !important; }

/* ========================================
   Mesh Background
   ======================================== */

.mesh-bg {
  position: fixed;
  inset: 0;
  background: var(--gradient-mesh);
  opacity: 0.3;
  filter: blur(100px);
  pointer-events: none;
  z-index: -1;
}

/* ========================================
   Audio Player Dark Theme
   ======================================== */

audio {
  width: 100%;
  height: 48px;
  border-radius: var(--radius-lg);
  outline: none;
}

/* Custom audio styling for webkit browsers */
audio::-webkit-media-controls-enclosure {
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
}

audio::-webkit-media-controls-panel {
  background: transparent;
}

audio::-webkit-media-controls-play-button,
audio::-webkit-media-controls-mute-button {
  filter: invert(1);
}

audio::-webkit-media-controls-current-time-display,
audio::-webkit-media-controls-time-remaining-display {
  color: var(--color-text-secondary);
}

audio::-webkit-media-controls-timeline {
  filter: hue-rotate(180deg) brightness(1.5);
}

/* ========================================
   Provider Card Selection
   ======================================== */

[data-provider-selector-target="elevenlabsCard"].selected {
  border-color: var(--color-accent-secondary) !important;
}

[data-provider-selector-target="openaiCard"].selected {
  border-color: var(--color-accent-green) !important;
}

/* ========================================
   Select Dropdown Dark Theme
   ======================================== */

select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236e6e73' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 12px center;
  background-repeat: no-repeat;
  background-size: 20px;
}

select option {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

/* ========================================
   Form Focus States
   ======================================== */

input:focus,
textarea:focus,
select:focus {
  border-color: var(--color-accent) !important;
  box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.15) !important;
}

/* ========================================
   Noise Texture Overlay
   ======================================== */

.noise::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0.02;
  pointer-events: none;
  z-index: 9999;
}

/* ========================================
   Pipeline / Conveyor Animations
   ======================================== */

/* Slow ping animation for pipeline nodes */
@keyframes ping-slow {
  0% {
    transform: scale(1);
    opacity: 0.3;
  }
  50% {
    transform: scale(1.15);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 0;
  }
}

.animate-ping-slow {
  animation: ping-slow 3s cubic-bezier(0, 0, 0.2, 1) infinite;
}

/* Data packet animation - file moving along the conveyor */
@keyframes packet-move {
  0% {
    left: -10px;
    opacity: 0;
  }
  15% {
    opacity: 1;
  }
  85% {
    opacity: 1;
  }
  100% {
    left: calc(100% + 10px);
    opacity: 0;
  }
}

.data-packet {
  position: absolute;
  width: 12px;
  height: 15px;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  background: var(--color-neon-blue);
  box-shadow: 0 0 10px var(--color-neon-blue), 0 0 20px var(--color-neon-blue);
  border-radius: 2px;
  animation: packet-move 2.5s ease-in-out infinite;
}

/* File shape - folded corner */
.data-packet::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 4px;
  height: 4px;
  background: var(--color-void);
  border-bottom-left-radius: 1px;
}

.data-packet-1 {
  animation-delay: 0s;
  background: #818cf8;
  box-shadow: 0 0 8px #818cf8, 0 0 16px #818cf8;
}

.data-packet-2 {
  animation-delay: 0.6s;
  background: var(--color-neon-blue);
  box-shadow: 0 0 8px var(--color-neon-blue), 0 0 16px var(--color-neon-blue);
}

.data-packet-3 {
  animation-delay: 1.2s;
  background: var(--color-neon-green);
  box-shadow: 0 0 8px var(--color-neon-green), 0 0 16px var(--color-neon-green);
}

.data-packet-4 {
  animation-delay: 1.8s;
  background: var(--color-neon-purple);
  box-shadow: 0 0 8px var(--color-neon-purple), 0 0 16px var(--color-neon-purple);
}

/* Conveyor particles - moving dots along the belt */
@keyframes conveyor-flow {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 40px 0;
  }
}

.conveyor-particles {
  position: absolute;
  inset: -2px 0;
  background-image: repeating-linear-gradient(
    90deg,
    transparent 0px,
    transparent 15px,
    rgba(255, 255, 255, 0.1) 15px,
    rgba(255, 255, 255, 0.1) 20px,
    transparent 20px,
    transparent 40px
  );
  animation: conveyor-flow 2s linear infinite;
}

/* Pipeline stage hover glow */
.pipeline-stage:hover .pipeline-node {
  filter: brightness(1.2);
}

/* Pipeline arrow pulse */
@keyframes arrow-pulse {
  0%, 100% {
    opacity: 0.4;
  }
  50% {
    opacity: 0.8;
  }
}

.pipeline-arrow svg {
  animation: arrow-pulse 2s ease-in-out infinite;
}

.pipeline-arrow:nth-child(2) svg { animation-delay: 0s; }
.pipeline-arrow:nth-child(4) svg { animation-delay: 0.3s; }
.pipeline-arrow:nth-child(6) svg { animation-delay: 0.6s; }
.pipeline-arrow:nth-child(8) svg { animation-delay: 0.9s; }

/* Stage sequential highlight animation */
@keyframes stage-highlight {
  0%, 20% {
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: none;
  }
  10% {
    border-color: currentColor;
    box-shadow: 0 0 30px currentColor;
  }
}

/* Responsive pipeline adjustments */
@media (max-width: 640px) {
  .pipeline-stage .pipeline-node {
    width: 48px !important;
    height: 48px !important;
  }

  .pipeline-arrow svg {
    width: 16px;
    height: 16px;
  }

  .data-packet {
    width: 9px;
    height: 11px;
  }
}