:root {
  /* Color Palette - Modern Blue Theme */
  --primary-color: #4361ee;
  --primary-light: #4895ef;
  --primary-lighter: #4cc9f0;
  --primary-dark: #3a0ca3;
  --primary-gradient: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  
  --success-color: #4ade80;
  --warning-color: #fbbf24;
  --danger-color: #ef4444;
  --info-color: #06b6d4;
  
  /* Light Mode Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #64748b;
  --border-color: #e2e8f0;
  --card-bg: #ffffff;
  --card-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  --input-bg: #f8fafc;
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.18);
  
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 32px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.2);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-tertiary: #94a3b8;
  --border-color: #475569;
  --card-bg: #1e293b;
  --card-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  --input-bg: #334155;
  --glass-bg: rgba(30, 41, 59, 0.5);
  --glass-border: rgba(255, 255, 255, 0.1);
  
  --gray-50: #0f172a;
  --gray-100: #1e293b;
  --gray-200: #334155;
  --gray-300: #475569;
  --gray-400: #64748b;
  --gray-500: #94a3b8;
  --gray-600: #cbd5e1;
  --gray-700: #e2e8f0;
  --gray-800: #f1f5f9;
  --gray-900: #ffffff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  transition: background-color var(--transition-normal), 
              border-color var(--transition-normal),
              color var(--transition-normal);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-normal);
}

/* Background Pattern - Different for Light/Dark */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(var(--primary-color) 1px, transparent 1px),
    radial-gradient(var(--primary-light) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: 0 0, 20px 20px;
  opacity: 0.05;
  z-index: -1;
  pointer-events: none;
}

[data-theme="dark"] body::before {
  opacity: 0.03;
  background-image: 
    radial-gradient(var(--primary-lighter) 1px, transparent 1px),
    radial-gradient(var(--primary-light) 0.5px, transparent 0.5px);
}

/* Theme Toggle Button */
.theme-toggle {
  position: fixed;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.theme-toggle:hover {
  transform: rotate(15deg) scale(1.1);
  box-shadow: var(--shadow-lg);
}

.theme-toggle i {
  font-size: 1.25rem;
  color: var(--text-primary);
  transition: transform var(--transition-normal);
}

[data-theme="dark"] .theme-toggle i.fa-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle i.fa-moon {
  display: block;
}

.theme-toggle i.fa-moon {
  display: none;
}

.theme-toggle i.fa-sun {
  display: block;
}

.encrypt-container {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-xl);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

/* Header - Modern Glassmorphism */
.header {
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-xl);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--glass-shadow);
  margin-bottom: var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

.header::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: var(--primary-gradient);
  opacity: 0.05;
  z-index: -1;
}

[data-theme="dark"] .header::before {
  opacity: 0.03;
}

.header h1 {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.header h1 i {
  font-size: 2.2rem;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

/* Input Section - Modern Card */
.input-section {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--card-shadow);
  transition: all var(--transition-normal);
  border: 2px solid transparent;
}

.input-section.active {
  border-color: var(--primary-color);
  box-shadow: var(--card-shadow), 0 0 0 4px rgba(67, 97, 238, 0.1);
  transform: translateY(-2px);
}

.input-section h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.input-section h3 i {
  color: var(--primary-color);
  font-size: 1.2rem;
}

/* URL Input - Modern Design */
.url-input {
  width: 100%;
  padding: var(--spacing-lg) var(--spacing-xl);
  font-size: 1rem;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--input-bg);
  color: var(--text-primary);
  transition: all var(--transition-normal);
  outline: none;
}

.url-input:hover {
  border-color: var(--gray-300);
  background: var(--bg-tertiary);
}

.url-input:focus {
  border-color: var(--primary-color);
  background: var(--input-bg);
  box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.15);
  transform: translateY(-1px);
}

.url-input::placeholder {
  color: var(--text-tertiary);
  font-weight: 400;
}

/* Validation Status */
.validation-status {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  display: none;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 500;
  animation: slideIn 0.3s ease-out;
}

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

.validation-status.valid {
  display: flex;
  background: rgba(74, 222, 128, 0.1);
  color: #059669;
  border: 1px solid rgba(74, 222, 128, 0.2);
}

.validation-status.invalid {
  display: flex;
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.validation-status i {
  font-size: 1.1rem;
}

/* Result Section */
.result-section {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--card-shadow);
  border: 2px solid transparent;
  display: none;
  animation: fadeInUp 0.4s ease-out;
}

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

.result-section.active {
  display: block;
  border-color: var(--primary-color);
  box-shadow: var(--card-shadow), 0 0 0 4px rgba(67, 97, 238, 0.1);
}

.result-section h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.result-section h3 i {
  color: var(--primary-color);
  font-size: 1.2rem;
}

/* Encrypted Output */
.encrypted-output {
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--card-bg) 100%);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--border-color);
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.95rem;
  color: var(--text-secondary);
  word-break: break-all;
  max-height: 240px;
  overflow: auto;
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
  position: relative;
}

[data-theme="dark"] .encrypted-output {
  background: linear-gradient(135deg, var(--gray-100) 0%, var(--card-bg) 100%);
}

.encrypted-output::before {
  content: '🔐';
  position: absolute;
  top: -12px;
  right: -12px;
  background: var(--card-bg);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

/* Action Buttons - Modern Design */
.action-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-xl);
}

.btn-primary, .btn-secondary {
  padding: var(--spacing-lg) var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: none;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  transition: all var(--transition-normal);
  flex: 1;
  min-width: 180px;
  letter-spacing: -0.01em;
}

.btn-primary {
  background: var(--primary-gradient);
  color: white;
  box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(67, 97, 238, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(67, 97, 238, 0.3);
}

.btn-secondary {
  background: var(--card-bg);
  color: var(--primary-color);
  border: 2px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

button i {
  font-size: 1.1rem;
}

/* QR Container with Animation */
.qr-container {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  border: 2px solid var(--border-color);
  display: none;
  overflow: visible !important; /* TAMBAHKAN */
  position: relative; /* TAMBAHKAN */
}

.qr-container.active {
  display: block;
  animation: qrContainerAppear 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#qrCodeDisplay canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
  object-fit: contain; /* TAMBAHKAN */
  border-radius: var(--radius-lg);
}

@keyframes qrContainerAppear {
  0% {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  70% {
    opacity: 1;
    transform: scale(1.02) translateY(-5px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.qr-container h4 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xl);
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.qr-container h4 i {
  color: var(--primary-color);
}

/* QR Code Display with Animation */
#qrCodeDisplay {
  width: 100%; /* TAMBAHKAN */
  max-width: 384px; /* TAMBAHKAN */
  height: auto; /* TAMBAHKAN */
  aspect-ratio: 1/1; /* TAMBAHKAN - agar tetap persegi */
  margin: 0 auto var(--spacing-xl);
  background: var(--card-bg);
  padding: var(--spacing-lg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden !important;
  transition: all var(--transition-normal);
}

#qrCodeDisplay.generating {
  animation: qrPulse 1.5s ease-in-out infinite;
}

@keyframes qrPulse {
  0%, 100% {
    box-shadow: 
      0 0 0 0 rgba(67, 97, 238, 0.4),
      var(--shadow-lg);
    transform: scale(1);
  }
  50% {
    box-shadow: 
      0 0 0 15px rgba(67, 97, 238, 0),
      var(--shadow-lg);
    transform: scale(0.98);
  }
}

#qrCodeDisplay::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: var(--primary-gradient);
  border-radius: var(--radius-xl);
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
  background-size: 200% 200%; /* TAMBAHKAN UNTUK ANIMASI */
}

#qrCodeDisplay.animated-border::before {
  animation: borderFlow 2s ease-in-out;
  opacity: 1;
}

@keyframes borderFlow {
  0% {
    opacity: 0;
    background-position: 0% 0%;
  }
  25% {
    opacity: 1;
    background-position: 100% 0%;
  }
  50% {
    opacity: 1;
    background-position: 100% 100%;
  }
  75% {
    opacity: 1;
    background-position: 0% 100%;
  }
  100% {
    opacity: 0;
    background-position: 0% 0%;
  }
}

/* QR Generation Animation Overlay */
.qr-overlay {
  position: absolute;
  inset: 0;
  background: var(--card-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  z-index: 10;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.qr-overlay.active {
  opacity: 0.9;
  pointer-events: all;
}

.qr-overlay i {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
  animation: spin 1s linear infinite;
}

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

.qr-overlay p {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.1rem;
}

.qr-buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

/* Info Box */
.info-box {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  border-left: 6px solid var(--primary-color);
  box-shadow: var(--shadow-md);
}

.info-box h4 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.info-box h4 i {
  color: var(--primary-color);
}

.info-box ul {
  list-style: none;
  padding-left: 0;
}

.info-box li {
  padding: var(--spacing-sm) 0;
  padding-left: var(--spacing-xl);
  position: relative;
  color: var(--text-secondary);
  font-weight: 500;
}

.info-box li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

/* Copy Success Toast */
.copy-success {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  background: rgba(74, 222, 128, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  color: white;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: none;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 600;
  z-index: 1000;
  animation: slideInRight 0.3s ease-out, fadeOut 0.3s ease-out 1.7s forwards;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes fadeOut {
  to {
    opacity: 0;
    transform: translateY(20px);
  }
}

.copy-success i {
  font-size: 1.2rem;
}

/* Module Drawing Animation for QR */
.qr-module {
  opacity: 0;
  transform: scale(0);
  animation: moduleAppear 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

@keyframes moduleAppear {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Dark Mode Toggle Animation */
[data-theme="dark"] {
  color-scheme: dark;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-400);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}

/* Responsive Design */
@media (max-width: 768px) {
  .encrypt-container {
    padding: var(--spacing-md);
    gap: var(--spacing-lg);
  }

  .theme-toggle {
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
  }

  .header {
    padding: var(--spacing-xl) var(--spacing-lg);
  }

  .header h1 {
    font-size: 2rem;
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .input-section,
  .result-section,
  .info-box {
    padding: var(--spacing-xl);
  }

  .action-buttons {
    flex-direction: column;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
  }

  #qrCodeDisplay {
    width: 300px;
    height: 300px;
  }

  .copy-success {
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    left: var(--spacing-md);
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .header h1 {
    font-size: 1.75rem;
  }

  .url-input {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.95rem;
  }

  #qrCodeDisplay {
    width: 280px;
    height: 280px;
  }

  .btn-primary,
  .btn-secondary {
    min-width: 100%;
  }
}

/* Loading Animation */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.loading {
  animation: pulse 1.5s ease-in-out infinite;
}

/* Focus States */
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Disabled State */
button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: var(--shadow-sm) !important;
}

/* Share Button Styling */
.btn-share {
  background: linear-gradient(135deg, #25d366, #128c7e) !important;
  color: white !important;
  border: none !important;
}

.btn-share:hover {
  background: linear-gradient(135deg, #128c7e, #25d366) !important;
  transform: translateY(-2px) !important;
}

/* Share Modal */
.share-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.share-modal.active {
  display: flex;
}

.share-modal-content {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  max-width: 500px;
  width: 90%;
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.3s ease;
}

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

.share-modal-content h4 {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.share-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.share-option {
  padding: var(--spacing-lg);
  border: 2px solid var(--border-color);
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  transition: all var(--transition-normal);
  color: var(--text-primary);
}

.share-option:hover {
  transform: translateY(-3px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
}

.share-option i {
  font-size: 2rem;
  margin-bottom: var(--spacing-xs);
}

/* App-specific colors */
.share-option[data-app="whatsapp"] i {
  color: #25d366;
}

.share-option[data-app="email"] i {
  color: #ea4335;
}

.share-option[data-app="telegram"] i {
  color: #0088cc;
}

.share-option[data-app="teams"] i {
  color: #6264a7;
}

.share-option[data-app="classroom"] i {
  color: #0f9d58;
}

.share-option[data-app="copy"] i {
  color: var(--primary-color);
}

/* Toast untuk mobile share */
.share-toast {
  position: fixed;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-color);
  color: white;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-radius: var(--radius-lg);
  display: none;
  align-items: center;
  gap: var(--spacing-sm);
  z-index: 1001;
  box-shadow: var(--shadow-lg);
}

.share-toast.active {
  display: flex;
  animation: slideUp 0.3s ease, fadeOut 0.3s ease 2s forwards;
}

/* Responsive share options */
@media (max-width: 480px) {
  .share-options {
    grid-template-columns: 1fr;
  }
}

/* PWA Specific Styles */
.pwa-mode .theme-toggle {
  top: 60px; /* Lower for PWA window controls */
}

.pwa-close-btn {
  position: fixed;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.9);
  color: white;
  border: none;
  font-size: 20px;
  cursor: pointer;
  z-index: 1001;
  display: none;
}

@media (display-mode: standalone) {
  .pwa-close-btn {
    display: block;
  }
  
  body {
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  
  /* Adjust for notch/status bar */
  .encrypt-container {
    margin-top: env(safe-area-inset-top);
  }
}

/* Install Button */
.install-btn {
  animation: slideUp 0.5s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Offline Indicator */
.offline-indicator {
  position: fixed;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: #fbbf24;
  color: #78350f;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  display: none;
  z-index: 1000;
}

@media (max-width: 768px) {
  .offline-indicator {
    top: 60px;
  }
}

/* Loader for PWA */
.pwa-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.pwa-loader.hidden {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

@media (max-width: 768px) {
  #qrCodeDisplay {
    max-width: 320px;
    padding: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  #qrCodeDisplay {
    max-width: 280px;
  }
}

@media (max-width: 360px) {
  #qrCodeDisplay {
    max-width: 240px;
  }
}

/* Pastikan container tidak overflow */
.encrypt-container {
  overflow-x: hidden; /* TAMBAHKAN INI */
}

.qr-container {
  overflow: hidden; /* TAMBAHKAN INI */
}