/* Import Modern Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  /* HSL Tailored Color Palette - Deep Dark Premium Theme */
  --bg-primary: #080b11;
  --bg-secondary: #0f1422;
  --bg-tertiary: #171d30;
  
  --color-text: #f3f4f6;
  --color-text-muted: #9ca3af;
  
  /* Vibrant Gradients & Accents */
  --accent-primary: #6366f1; /* Indigo */
  --accent-secondary: #06b6d4; /* Cyan */
  --accent-purple: #a855f7; /* Purple */
  --accent-gradient: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-purple) 50%, var(--accent-secondary) 100%);
  --accent-gradient-hover: linear-gradient(135deg, #4f46e5 0%, #9333ea 50%, #0891b2 100%);
  
  /* Status Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-info: #3b82f6;

  /* Glassmorphism & Borders */
  --glass-bg: rgba(15, 20, 34, 0.65);
  --glass-border: rgba(255, 255, 255, 0.07);
  --glass-border-focus: rgba(99, 102, 241, 0.4);
  
  /* Shadows & Glows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 15px 40px rgba(0, 0, 0, 0.5);
  --glow-primary: 0 0 25px rgba(99, 102, 241, 0.25);
  
  /* Font Family & Transitions */
  --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius-lg: 20px;
  --border-radius-md: 12px;
  --border-radius-sm: 8px;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--color-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(168, 85, 247, 0.08) 0%, transparent 40%);
  background-attachment: fixed;
  overflow-x: hidden;
}

/* Header */
header {
  padding: 2rem 1.5rem;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.logo {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  filter: drop-shadow(0 2px 10px rgba(99, 102, 241, 0.2));
}

.logo i {
  -webkit-text-fill-color: initial;
  color: var(--accent-primary);
}

.tagline {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  font-weight: 400;
}

/* Main Container Layout */
main {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 968px) {
  main {
    grid-template-columns: 1fr;
  }
}

/* Common Card & Glass Panel Styling */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2.5rem;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-panel:hover {
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-lg);
}

/* Grid Spacing */
.grid-container {
  display: grid;
  gap: 1.5rem;
}

/* Form Controls */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.input-control {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 0.85rem 1.1rem;
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
}

.input-control:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
  background: var(--bg-secondary);
}

textarea.input-control {
  min-height: 120px;
  resize: vertical;
}

/* Drag & Drop Upload Zone */
.upload-zone {
  border: 2px dashed rgba(255, 255, 255, 0.15);
  background: rgba(15, 20, 34, 0.4);
  border-radius: var(--border-radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  position: relative;
  overflow: hidden;
}

.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.04);
  box-shadow: var(--glow-primary);
}

.upload-icon {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--color-text-muted);
  transition: all var(--transition-normal);
  border: 1px solid var(--glass-border);
}

.upload-zone:hover .upload-icon, .upload-zone.dragover .upload-icon {
  background: var(--accent-gradient);
  color: white;
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
  border-color: transparent;
}

.upload-text h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

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

/* File list queued */
.file-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.file-item {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  animation: slideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.file-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  overflow: hidden;
}

.file-info i {
  font-size: 1.25rem;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.file-details {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.file-name {
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.file-size {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.btn-remove-file {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 1rem;
  transition: color var(--transition-fast);
  padding: 0.25rem;
}

.btn-remove-file:hover {
  color: var(--color-danger);
}

/* Collapsible Settings Panel */
.collapsible-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 1rem 1.25rem;
  cursor: pointer;
  user-select: none;
  font-weight: 600;
  transition: all var(--transition-normal);
}

.collapsible-trigger:hover {
  background: var(--bg-tertiary);
  border-color: rgba(255, 255, 255, 0.15);
}

.collapsible-trigger i {
  transition: transform var(--transition-normal);
}

.collapsible-trigger.active i {
  transform: rotate(180deg);
}

.collapsible-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease-out;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.collapsible-content.expanded {
  max-height: 500px; /* high enough for nested content */
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}

/* Custom Checkbox Toggle Switch */
.switch-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
}

.switch-label {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.switch-label span {
  font-weight: 600;
  font-size: 0.9rem;
}

.switch-label small {
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

.switch {
  position: relative;
  display: inline-block;
  width: 46px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  transition: .3s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: var(--color-text-muted);
  transition: .3s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--accent-primary);
  border-color: transparent;
}

input:checked + .slider:before {
  transform: translateX(22px);
  background-color: white;
}

/* Primary Button Styling */
.btn-primary {
  background: var(--accent-gradient);
  border: none;
  border-radius: var(--border-radius-md);
  color: white;
  font-family: var(--font-main);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
  margin-top: 1rem;
  letter-spacing: 0.02em;
}

.btn-primary:hover {
  background: var(--accent-gradient-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.45);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  background: var(--bg-tertiary);
  color: var(--color-text-muted);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
  border: 1px solid var(--glass-border);
}

/* Success View Overlay & Share Box */
.success-card {
  text-align: center;
  animation: fadeIn 0.4s ease-out forwards;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.success-icon {
  width: 80px;
  height: 80px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin: 0 auto;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.share-link-box {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 0.75rem 0.75rem 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.share-url {
  font-size: 0.95rem;
  color: var(--accent-secondary);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-decoration: none;
}

.btn-copy {
  background: var(--accent-primary);
  color: white;
  border: none;
  border-radius: var(--border-radius-sm);
  padding: 0.6rem 1.2rem;
  font-family: var(--font-main);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-copy:hover {
  background: var(--accent-purple);
  box-shadow: 0 4px 12px rgba(168, 85, 247, 0.3);
}

.btn-copy.copied {
  background: var(--color-success);
}

/* History Dashboard Column */
.history-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.history-section h2 {
  font-size: 1.3rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.history-section h2 i {
  color: var(--accent-purple);
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.history-empty {
  text-align: center;
  padding: 3rem 1rem;
  border: 1px dashed var(--glass-border);
  border-radius: var(--border-radius-lg);
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

.history-empty i {
  font-size: 2.2rem;
  color: var(--bg-tertiary);
}

.history-card {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: all var(--transition-normal);
}

.history-card:hover {
  border-color: rgba(255,255,255,0.12);
  transform: translateX(3px);
  background: var(--bg-tertiary);
}

.history-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.history-card-title {
  font-weight: 600;
  font-size: 1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-card-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.history-card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.status-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 30px;
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.status-active {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.status-pending {
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
}

.status-expired {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
}

.badge-locked {
  background: rgba(99, 102, 241, 0.1);
  color: var(--accent-primary);
}

.history-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 0.75rem;
  margin-top: 0.25rem;
}

.btn-icon {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0.35rem;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  background: rgba(255,255,255,0.05);
  color: var(--color-text);
}

.btn-icon.btn-delete-history:hover {
  color: var(--color-danger);
  background: rgba(239, 68, 68, 0.08);
}

.history-link {
  font-size: 0.85rem;
  color: var(--accent-secondary);
  text-decoration: none;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  transition: color var(--transition-fast);
}

.history-link:hover {
  color: var(--accent-primary);
  text-decoration: underline;
}

/* Progress bar inside upload */
.progress-container {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: 30px;
  height: 12px;
  width: 100%;
  overflow: hidden;
  position: relative;
}

.progress-bar {
  background: var(--accent-gradient);
  height: 100%;
  width: 0%;
  border-radius: 30px;
  transition: width 0.1s linear;
}

.progress-text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: right;
}

/* Recipient / Share View Layout */
.share-container {
  max-width: 680px;
  margin: 2rem auto;
  width: 100%;
  padding: 0 1.5rem;
}

.recipient-card {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.recipient-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding-bottom: 1.5rem;
}

.recipient-header h2 {
  font-size: 1.8rem;
  font-weight: 700;
}

.text-preview-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 1.5rem;
  font-size: 0.95rem;
  white-space: pre-wrap;
  color: #e5e7eb;
  line-height: 1.6;
}

.section-title {
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.section-title i {
  color: var(--accent-primary);
}

.download-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.download-item {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  transition: all var(--transition-normal);
}

.download-item:hover {
  background: var(--bg-tertiary);
  border-color: rgba(255,255,255,0.12);
}

.btn-download {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  color: var(--color-text);
  padding: 0.6rem 1rem;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-download:hover {
  background: var(--accent-primary);
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-download-all {
  margin-top: 0.5rem;
}

/* Password unlock overlay */
.lock-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 2rem;
  gap: 1.5rem;
}

.lock-icon {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: rgba(99, 102, 241, 0.08);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.8rem;
  border: 1px solid var(--glass-border-focus);
  box-shadow: var(--glow-primary);
  animation: float 4s ease-in-out infinite;
}

.lock-screen h2 {
  font-size: 1.6rem;
  font-weight: 700;
}

.lock-screen p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  max-width: 400px;
  margin-bottom: 0.5rem;
}

.lock-form {
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Message banner styles */
.message-banner {
  padding: 1rem 1.25rem;
  border-radius: var(--border-radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: fadeIn 0.3s ease-out forwards;
}

.message-banner.error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: #fca5a5;
}

/* Inactive/Expired screen design */
.error-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 4rem 2rem;
  gap: 1.5rem;
}

.error-icon {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.08);
  color: var(--color-danger);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.8rem;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-secondary {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.85rem 1.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  margin-top: 1rem;
}

.btn-secondary:hover {
  background: var(--bg-secondary);
  border-color: var(--color-text-muted);
}

/* Animations */
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-8px);
  }
  100% {
    transform: translateY(0px);
  }
}

/* Footer styling */
footer {
  text-align: center;
  padding: 2rem 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  border-top: 1px solid rgba(255,255,255,0.03);
  margin-top: auto;
  letter-spacing: 0.02em;
  position: relative;
  z-index: 10;
}

/* Animated Ambient Background Glows */
body::before, body::after {
  content: "";
  position: fixed;
  width: 40vw;
  height: 40vw;
  border-radius: 50%;
  z-index: -1;
  filter: blur(120px);
  opacity: 0.12;
  pointer-events: none;
}

body::before {
  background: var(--accent-primary);
  top: -10vw;
  left: -10vw;
  animation: floatGlowOne 20s infinite alternate ease-in-out;
}

body::after {
  background: var(--accent-purple);
  bottom: -10vw;
  right: -10vw;
  animation: floatGlowTwo 25s infinite alternate ease-in-out;
}

@keyframes floatGlowOne {
  0% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(8vw, 6vh) scale(1.1);
  }
  100% {
    transform: translate(-4vw, 12vh) scale(0.95);
  }
}

@keyframes floatGlowTwo {
  0% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-8vw, -8vh) scale(0.95);
  }
  100% {
    transform: translate(4vw, -4vh) scale(1.1);
  }
}

/* Ambient Bubbles Background System */
.bubbles-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}

.bubble {
  position: absolute;
  bottom: -150px;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.12) 0%, rgba(99, 102, 241, 0.04) 60%, transparent 100%);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 8px 32px 0 rgba(99, 102, 241, 0.03), inset 0 2px 4px 0 rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(1.5px);
  -webkit-backdrop-filter: blur(1.5px);
  border-radius: 50%;
  animation: floatBubble 20s infinite linear;
  opacity: 0;
}

/* Bubble customizations (random sizes, swaying, delays) */
.bubble:nth-child(1) { width: 90px; height: 90px; left: 8%; animation-duration: 22s; animation-delay: 0s; }
.bubble:nth-child(2) { width: 140px; height: 140px; left: 20%; animation-duration: 18s; animation-delay: 2s; background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.1) 0%, rgba(168, 85, 247, 0.04) 60%, transparent 100%); }
.bubble:nth-child(3) { width: 60px; height: 60px; left: 35%; animation-duration: 26s; animation-delay: 4s; }
.bubble:nth-child(4) { width: 110px; height: 110px; left: 45%; animation-duration: 20s; animation-delay: 1s; background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.12) 0%, rgba(6, 182, 212, 0.04) 60%, transparent 100%); }
.bubble:nth-child(5) { width: 80px; height: 80px; left: 55%; animation-duration: 24s; animation-delay: 6s; }
.bubble:nth-child(6) { width: 130px; height: 130px; left: 68%; animation-duration: 19s; animation-delay: 3s; }
.bubble:nth-child(7) { width: 50px; height: 50px; left: 80%; animation-duration: 28s; animation-delay: 7s; }
.bubble:nth-child(8) { width: 100px; height: 100px; left: 90%; animation-duration: 21s; animation-delay: 5s; }
.bubble:nth-child(9) { width: 150px; height: 150px; left: 15%; animation-duration: 25s; animation-delay: 8s; }
.bubble:nth-child(10) { width: 70px; height: 70px; left: 75%; animation-duration: 23s; animation-delay: 10s; }

@keyframes floatBubble {
  0% {
    transform: translateY(0) translateX(0) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.6;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-125vh) translateX(70px) rotate(360deg);
    opacity: 0;
  }
}