/* ============================================
   PREMIUM QR GENERATOR - NEOBRUTALISM EDITION
   Bold, Sassy & Modern Design System
   ============================================ */

/* CSS Variables - Neobrutalist Theme */
:root {
  /* Core Neobrutalist Colors */
  --neo-yellow: #FFE600;
  --neo-pink: #FF6B9D;
  --neo-blue: #00D4FF;
  --neo-green: #7CFF6B;
  --neo-orange: #FF9F1C;
  --neo-purple: #C77DFF;
  --neo-red: #FF5757;
  --neo-mint: #98F5E1;
  
  /* Base Colors - Clean White Base */
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-accent: var(--neo-yellow);
  
  --text-primary: #1a1a1a;
  --text-secondary: #3d3d3d;
  --text-muted: #666666;
  
  /* Borders & Shadows - The Neobrutalist Signature */
  --border-width: 3px;
  --border-color: #1a1a1a;
  --shadow-brutal: 6px 6px 0px #1a1a1a;
  --shadow-brutal-sm: 4px 4px 0px #1a1a1a;
  --shadow-brutal-lg: 8px 8px 0px #1a1a1a;
  --shadow-brutal-hover: 8px 8px 0px #1a1a1a;
  
  /* Card Colors */
  --card-bg: #ffffff;
  --card-accent-1: var(--neo-yellow);
  --card-accent-2: var(--neo-pink);
  --card-accent-3: var(--neo-blue);
  --card-accent-4: var(--neo-green);
  
  /* Input Colors */
  --input-bg: #ffffff;
  --input-border: var(--border-color);
  --input-focus: var(--neo-blue);
  
  /* Button Colors */
  --btn-primary-bg: var(--neo-yellow);
  --btn-primary-hover: var(--neo-orange);
  --btn-secondary-bg: #ffffff;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.2s ease;
  
  /* Border Radius - Slightly rounded for that neo look */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

/* Dark Theme - Neobrutalist Dark */
[data-theme="dark"] {
  --bg-primary: #1a1a2e;
  --bg-secondary: #252550;
  --bg-accent: var(--neo-purple);
  
  --text-primary: #ffffff;
  --text-secondary: #e0e0e0;
  --text-muted: #b0b0b0;
  
  --border-color: #ffffff;
  --shadow-brutal: 6px 6px 0px rgba(255,255,255,0.3);
  --shadow-brutal-sm: 4px 4px 0px rgba(255,255,255,0.3);
  --shadow-brutal-lg: 8px 8px 0px rgba(255,255,255,0.3);
  --shadow-brutal-hover: 8px 8px 0px rgba(255,255,255,0.3);
  
  --card-bg: #252550;
  --input-bg: #1e1e45;
  --btn-secondary-bg: #353570;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', 'Arial Black', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  width: 100%;
  max-width: 100vw;
}

/* Funky Background Pattern */
.bg-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 20% 20%, var(--neo-yellow) 0%, transparent 12%),
    radial-gradient(circle at 80% 30%, var(--neo-pink) 0%, transparent 10%),
    radial-gradient(circle at 40% 70%, var(--neo-blue) 0%, transparent 11%),
    radial-gradient(circle at 90% 80%, var(--neo-green) 0%, transparent 9%),
    radial-gradient(circle at 10% 90%, var(--neo-purple) 0%, transparent 10%);
}

/* Grid Pattern Overlay */
.bg-animation::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(var(--text-muted) 1px, transparent 1px),
    linear-gradient(90deg, var(--text-muted) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.06;
}

/* Main Container */
.app-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.app-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.logo-icon {
  width: 64px;
  height: 64px;
  background: var(--neo-yellow);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-brutal);
  transform: rotate(-3deg);
  transition: transform var(--transition-normal);
}

.logo-icon:hover {
  transform: rotate(3deg) scale(1.05);
}

.logo-icon svg {
  width: 36px;
  height: 36px;
  fill: var(--text-primary);
}

.app-title {
  font-size: 3rem;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  text-transform: uppercase;
  position: relative;
  display: inline-block;
}

.app-title::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  right: 0;
  height: 12px;
  background: var(--neo-pink);
  z-index: -1;
  transform: skewX(-3deg);
}

.app-subtitle {
  color: var(--text-secondary);
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: 0.5rem;
}

/* Theme Toggle */
.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 9999;
}

.theme-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  border: var(--border-width) solid var(--border-color);
  background: var(--neo-orange);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-brutal-sm);
}

.theme-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-brutal);
}

.theme-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0px var(--border-color);
}

.theme-btn svg {
  width: 28px;
  height: 28px;
  fill: var(--text-primary);
}

.theme-btn .sun-icon { display: none; }
.theme-btn .moon-icon { display: block; }

[data-theme="dark"] .theme-btn .sun-icon { display: block; }
[data-theme="dark"] .theme-btn .moon-icon { display: none; }
[data-theme="dark"] .theme-btn { background: var(--neo-purple); }

/* Main Content Grid */
.main-content {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 2rem;
  flex: 1;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}

/* Neobrutalist Card */
.glass-card {
  background: var(--card-bg);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-brutal-lg);
  padding: 2rem;
  position: relative;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

/* Color accents on cards */
.generator-panel::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 20px;
  width: 60px;
  height: 8px;
  background: var(--neo-pink);
  border-radius: 2px 2px 0 0;
}

.preview-panel::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 20px;
  width: 60px;
  height: 8px;
  background: var(--neo-blue);
  border-radius: 2px 2px 0 0;
}

/* QR Type Tabs */
.qr-types {
  margin-bottom: 2rem;
}

.qr-types h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-weight: 800;
}

.type-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
}

.type-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: 1rem 0.5rem;
  background: var(--bg-secondary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  box-shadow: var(--shadow-brutal-sm);
}

.type-tab svg {
  width: 24px;
  height: 24px;
  fill: var(--text-secondary);
  transition: fill var(--transition-fast);
}

.type-tab:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-brutal);
  background: var(--neo-mint);
}

.type-tab.active {
  background: var(--neo-yellow);
  color: var(--text-primary);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-brutal);
}

.type-tab.active svg {
  fill: var(--text-primary);
}

/* Form Sections */
.form-section {
  display: none;
}

.form-section.active {
  display: block;
  animation: slideIn 0.2s ease;
}

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

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  font-weight: 500;
}

/* Inputs - Neobrutalist Style */
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  font-size: 1rem;
  font-family: inherit;
  font-weight: 600;
  background: var(--input-bg);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: all var(--transition-fast);
  outline: none;
  box-shadow: var(--shadow-brutal-sm);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-brutal);
  border-color: var(--neo-blue);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
  font-weight: 500;
}

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

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='%231a1a1a'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 3rem;
}

/* Input Row */
.input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* Customization Panel */
.customization-panel {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: var(--border-width) dashed var(--border-color);
}

/* Advanced Toggle Button */
.advanced-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1rem;
  background: var(--bg-secondary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  box-shadow: var(--shadow-brutal-sm);
  transition: all var(--transition-fast);
}

.advanced-toggle:hover {
  background: var(--neo-mint);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-brutal);
}

.advanced-toggle svg {
  width: 20px;
  height: 20px;
  fill: var(--text-secondary);
}

.advanced-toggle .chevron {
  margin-left: auto;
  transition: transform var(--transition-normal);
}

.advanced-toggle.open .chevron {
  transform: rotate(180deg);
}

.advanced-toggle.open {
  background: var(--neo-yellow);
  color: var(--text-primary);
}

.advanced-toggle.open svg {
  fill: var(--text-primary);
}

/* Advanced Content */
.advanced-content {
  display: none;
  padding-top: 1.5rem;
}

.advanced-content.open {
  display: block;
  animation: slideDown 0.3s ease;
}

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

.customize-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

/* Color Picker */
.color-picker-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.color-picker-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.color-picker {
  width: 54px;
  height: 54px;
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  overflow: hidden;
  box-shadow: var(--shadow-brutal-sm);
  transition: all var(--transition-fast);
}

.color-picker:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-brutal);
}

.color-picker::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-picker::-webkit-color-swatch {
  border: none;
}

.color-value {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border-color);
}

/* Range Slider */
.range-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.range-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.range-value {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.9rem;
  color: var(--neo-pink);
  font-weight: 800;
  background: var(--text-primary);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
}

[data-theme="dark"] .range-value {
  background: var(--neo-pink);
  color: var(--text-primary);
}

.range-slider {
  width: 100%;
  height: 12px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-secondary);
  border: var(--border-width) solid var(--border-color);
  border-radius: 6px;
  outline: none;
  cursor: pointer;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 28px;
  background: var(--neo-yellow);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: 3px 3px 0px var(--border-color);
  transition: all var(--transition-fast);
}

.range-slider::-webkit-slider-thumb:hover {
  background: var(--neo-orange);
  transform: scale(1.1);
}

/* Logo Upload */
.logo-upload-area {
  border: var(--border-width) dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  background: var(--bg-secondary);
}

.logo-upload-area:hover {
  background: var(--neo-mint);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-brutal-sm);
}

.logo-upload-area.has-logo {
  padding: 0.75rem;
  border-style: solid;
}

.logo-upload-area svg {
  width: 36px;
  height: 36px;
  fill: var(--text-muted);
  margin-bottom: 0.5rem;
}

.logo-upload-area span {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.logo-upload-area input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  cursor: pointer;
}

.logo-preview {
  max-width: 80px;
  max-height: 80px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border-color);
  display: none;
}

.logo-upload-area.has-logo .logo-preview {
  display: block;
  margin: 0 auto;
}

.logo-upload-area.has-logo svg,
.logo-upload-area.has-logo span {
  display: none;
}

.remove-logo {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  width: 28px;
  height: 28px;
  background: var(--neo-red);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: white;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 900;
  z-index: 10;
  box-shadow: 2px 2px 0px var(--border-color);
}

.remove-logo:hover {
  background: #ff3333;
}

.logo-upload-area.has-logo .remove-logo {
  display: flex;
}

/* Generate Button - THE STAR */
.generate-btn {
  width: 100%;
  padding: 1.25rem 2rem;
  font-size: 1.2rem;
  font-weight: 900;
  font-family: inherit;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: var(--neo-yellow);
  color: var(--text-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-brutal);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2rem;
  position: relative;
  overflow: hidden;
}

.generate-btn:hover {
  background: var(--neo-green);
  transform: translate(-4px, -4px);
  box-shadow: 10px 10px 0px var(--border-color);
}

.generate-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0px var(--border-color);
}

.generate-btn svg {
  width: 28px;
  height: 28px;
  fill: var(--text-primary);
}

.generate-btn.loading {
  pointer-events: none;
  background: var(--neo-orange);
}

.generate-btn .spinner {
  display: none;
  width: 28px;
  height: 28px;
  border: 4px solid var(--text-primary);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.generate-btn.loading .spinner {
  display: block;
}

.generate-btn.loading .btn-text,
.generate-btn.loading svg {
  display: none;
}

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

/* Preview Panel */
.preview-panel {
  position: sticky;
  top: 2rem;
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

.preview-panel h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-weight: 800;
  text-align: center;
}

/* QR Display */
.qr-display {
  background: #ffffff;
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  position: relative;
  box-shadow: var(--shadow-brutal);
  transition: all var(--transition-fast);
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

.qr-display.empty {
  background: repeating-linear-gradient(
    45deg,
    var(--bg-secondary),
    var(--bg-secondary) 10px,
    var(--card-bg) 10px,
    var(--card-bg) 20px
  );
  border-style: dashed;
  box-shadow: none;
}

.qr-placeholder {
  text-align: center;
  color: var(--text-muted);
}

.qr-placeholder svg {
  width: 72px;
  height: 72px;
  fill: var(--text-muted);
  opacity: 0.4;
  margin-bottom: 1rem;
}

.qr-placeholder p {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

#qrcode {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  max-width: 100%;
  overflow: hidden;
}

#qrcode canvas {
  border-radius: var(--radius-sm);
  display: block !important;
  max-width: 100%;
  height: auto !important;
}

#qrcode img {
  border-radius: var(--radius-sm);
  max-width: 100%;
  height: auto;
}

.qr-generated #qrcode {
  animation: popIn 0.3s ease;
}

@keyframes popIn {
  0% {
    opacity: 0;
    transform: scale(0.8) rotate(-5deg);
  }
  50% {
    transform: scale(1.05) rotate(2deg);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotate(0);
  }
}

/* Download Actions */
.download-actions {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.download-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1rem;
  font-size: 0.85rem;
  font-weight: 800;
  font-family: inherit;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--btn-secondary-bg);
  color: var(--text-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  box-shadow: var(--shadow-brutal-sm);
  min-height: 48px;
}

.download-btn span {
  display: inline-block;
}

.download-btn svg {
  width: 20px;
  height: 20px;
  fill: var(--text-primary);
}

.download-btn:hover {
  background: var(--neo-mint);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-brutal);
}

.download-btn:active {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0px var(--border-color);
}

.download-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  background: var(--bg-secondary);
  color: var(--text-muted);
  box-shadow: var(--shadow-brutal-sm) !important;
}

/* Copy Button - Special */
.copy-btn {
  grid-column: span 2;
  background: var(--neo-pink);
}

.copy-btn:hover {
  background: var(--neo-purple);
}

.copy-btn.copied {
  background: var(--neo-green);
  animation: pulse 0.3s ease;
}

/* Share Actions */
.share-actions {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: var(--border-width) solid var(--border-color);
}

.share-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.share-title svg {
  width: 20px;
  height: 20px;
  fill: var(--text-primary);
}

.share-buttons {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 0.75rem;
}

.share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem;
  font-size: 0.85rem;
  font-weight: 800;
  font-family: inherit;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--btn-secondary-bg);
  color: var(--text-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-brutal-sm);
  min-height: 48px;
}

.share-btn svg {
  width: 20px;
  height: 20px;
  fill: var(--text-primary);
}

.share-main {
  background: var(--neo-green);
}

.share-main:hover {
  background: var(--neo-mint);
}

.share-btn:nth-child(2) {
  background: var(--neo-orange);
}

.share-btn:nth-child(2):hover {
  background: var(--neo-yellow);
}

.share-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-brutal);
}

.share-btn:active {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0px var(--border-color);
}

.share-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  background: var(--bg-secondary);
}

/* Templates Panel */
.templates-panel {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px dashed var(--border-color);
}

.templates-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.templates-header h3 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.templates-header svg {
  width: 20px;
  height: 20px;
  fill: var(--text-primary);
}

.save-template-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  font-weight: 800;
  font-family: inherit;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--neo-green);
  color: var(--text-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-brutal-sm);
}

.save-template-btn svg {
  width: 16px;
  height: 16px;
  fill: var(--text-primary);
}

.save-template-btn:hover {
  background: var(--neo-mint);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-brutal);
}

.save-template-btn:active {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0px var(--border-color);
}

.templates-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.template-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  font-size: 0.8rem;
  font-weight: 700;
  font-family: inherit;
  background: var(--btn-secondary-bg);
  color: var(--text-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-brutal-sm);
}

.template-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}

.template-preview {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  flex-shrink: 0;
}

.template-delete {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 20px;
  height: 20px;
  padding: 0;
  font-size: 16px;
  font-weight: bold;
  line-height: 1;
  background: var(--neo-red);
  color: white;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.template-item:hover .template-delete {
  display: flex;
}

.template-delete:hover {
  background: var(--neo-orange);
  transform: scale(1.1);
}

.template-item:hover {
  background: var(--neo-yellow);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-brutal);
}

.template-item:active {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0px var(--border-color);
}

.template-default {
  background: var(--neo-blue);
}

/* Form Select */
.form-select {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  background: var(--input-bg);
  color: var(--text-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-brutal-sm);
}

.form-select:hover {
  background: var(--neo-mint);
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0px var(--border-color);
}

.form-select:focus {
  outline: none;
  border-color: var(--input-focus);
  box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.2), var(--shadow-brutal-sm);
}

/* Checkbox */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.5rem 0;
}

.checkbox-input {
  width: 22px;
  height: 22px;
  cursor: pointer;
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-sm);
  appearance: none;
  background: var(--input-bg);
  position: relative;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.checkbox-input:checked {
  background: var(--neo-green);
}

.checkbox-input:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--text-primary);
  font-weight: 900;
  font-size: 14px;
}

.checkbox-input:hover {
  transform: translate(-1px, -1px);
  box-shadow: 2px 2px 0px var(--border-color);
}

/* Copy Button - Special */
.copy-btn {
  grid-column: span 2;
  background: var(--neo-pink);
}

.copy-btn:hover {
  background: var(--neo-purple);
}

.copy-btn.copied {
  background: var(--neo-green);
}

/* History Panel */
.history-panel {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: var(--border-width) dashed var(--border-color);
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.history-header h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
}

.history-header h3 svg {
  width: 20px;
  height: 20px;
  fill: var(--text-muted);
}

.clear-history {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.clear-history:hover {
  color: var(--neo-red);
  background: rgba(255, 87, 87, 0.1);
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-height: 280px;
  overflow-y: auto;
}

.history-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 3px 3px 0px var(--border-color);
}

.history-item:hover {
  background: var(--neo-yellow);
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0px var(--border-color);
}

.history-item-preview {
  width: 48px;
  height: 48px;
  background: white;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.history-item-preview img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.history-item-info {
  flex: 1;
  min-width: 0;
}

.history-item-type {
  font-size: 0.7rem;
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  background: var(--neo-blue);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-bottom: 0.25rem;
}

.history-item-content {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-empty {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--card-bg);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-brutal);
  animation: toastIn 0.3s ease;
  min-width: 300px;
}

@keyframes toastIn {
  from {
    transform: translateX(100%) rotate(5deg);
    opacity: 0;
  }
  to {
    transform: translateX(0) rotate(0);
    opacity: 1;
  }
}

.toast.success {
  border-left: 6px solid var(--neo-green);
}

.toast.error {
  border-left: 6px solid var(--neo-red);
}

.toast svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.toast.success svg {
  fill: var(--neo-green);
}

.toast.error svg {
  fill: var(--neo-red);
}

.toast-message {
  flex: 1;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
  font-size: 1.5rem;
  font-weight: 900;
  transition: color var(--transition-fast);
}

.toast-close:hover {
  color: var(--neo-red);
}

/* Scrollbar - Neobrutalist */
::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
}

::-webkit-scrollbar-thumb {
  background: var(--neo-yellow);
  border: 2px solid var(--border-color);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--neo-orange);
}

/* Footer */
.app-footer {
  text-align: center;
  padding: 2rem 0 1rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
}

.app-footer a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 800;
  background: var(--neo-pink);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.app-footer a:hover {
  background: var(--neo-yellow);
}

.app-footer kbd {
  background: var(--text-primary);
  color: var(--bg-primary);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 800;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .main-content {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: 100%;
    width: 100%;
  }
  
  .preview-panel {
    position: relative;
    top: 0;
    max-width: 100%;
    width: 100%;
    overflow: hidden;
  }
  
  .qr-display {
    min-height: 220px;
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .app-container {
    padding: 1rem;
    padding-top: 4.5rem; /* Space for fixed theme toggle */
  }
  
  .app-header {
    margin-bottom: 1.5rem;
  }
  
  .app-title {
    font-size: 1.75rem;
  }
  
  .app-title::after {
    height: 6px;
  }
  
  .app-subtitle {
    font-size: 0.95rem;
  }
  
  /* Hide QR type tabs labels on mobile, show only icons */
  .type-tabs {
    grid-template-columns: repeat(7, 1fr);
    gap: 0.4rem;
  }
  
  .type-tab {
    padding: 0.65rem 0.25rem;
    font-size: 0; /* Hide text on mobile */
  }
  
  .type-tab svg {
    width: 22px;
    height: 22px;
  }
  
  /* Hide section title for QR types */
  .qr-types h3 {
    display: none;
  }
  
  .customize-grid {
    grid-template-columns: 1fr;
  }
  
  .input-row {
    grid-template-columns: 1fr;
  }
  
  .glass-card {
    padding: 1.25rem;
  }
  
  .generator-panel::before,
  .preview-panel::before,
  .generator-panel::after,
  .preview-panel::after {
    display: none;
  }
  
  .preview-panel,
  .generator-panel {
    width: calc(100vw - 2rem);
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }
  
  /* Stack download buttons */
  .download-actions {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .copy-btn {
    grid-column: span 2;
  }
  
  /* Smaller QR display */
  .qr-display {
    min-height: 180px;
    padding: 1rem;
    max-width: 100%;
  }
  
  .download-actions {
    gap: 0.5rem;
  }
  
  .download-btn {
    padding: 0.75rem 0.5rem;
    font-size: 0.75rem;
  }
  
  .qr-placeholder svg {
    width: 48px;
    height: 48px;
  }
  
  .qr-placeholder p {
    font-size: 0.85rem;
  }
  
  /* Compact history */
  .history-panel {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
  }
  
  .history-list {
    max-height: 200px;
  }
  
  .theme-toggle {
    top: 0.75rem;
    right: 0.75rem;
  }
  
  .theme-btn {
    width: 44px;
    height: 44px;
  }
  
  .theme-btn svg {
    width: 22px;
    height: 22px;
  }
}

@media (max-width: 480px) {
  /* Kill all horizontal overflow */
  * {
    max-width: 100%;
  }
  
  .app-container {
    padding: 0.5rem;
    padding-top: 4rem; /* Space for fixed theme toggle */
    max-width: 100vw;
    overflow-x: hidden;
    box-sizing: border-box;
  }
  
  .main-content {
    width: 100%;
    max-width: 100%;
  }
  
  /* Hide header on very small screens to save space */
  .app-header {
    margin-bottom: 1rem;
  }
  
  .app-header .logo {
    display: none;
  }
  
  .app-subtitle {
    display: none;
  }
  
  /* Show all 7 tabs in single row with icons only */
  .type-tabs {
    grid-template-columns: repeat(7, 1fr);
    gap: 0.3rem;
  }
  
  .type-tab {
    padding: 0.6rem 0.2rem;
    box-shadow: 2px 2px 0px var(--border-color);
    font-size: 0; /* Hide text */
  }
  
  .type-tab svg {
    width: 20px;
    height: 20px;
  }
  
  .logo {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .logo-icon {
    width: 48px;
    height: 48px;
    transform: rotate(0);
  }
  
  .logo-icon svg {
    width: 28px;
    height: 28px;
  }
  
  .app-title {
    font-size: 1.5rem;
  }
  
  .glass-card {
    padding: 1rem;
    box-shadow: 3px 3px 0px var(--border-color);
    max-width: calc(100vw - 1.5rem);
    width: 100%;
    overflow: hidden;
    box-sizing: border-box;
  }
  
  .form-input,
  .form-textarea,
  .form-select {
    padding: 0.875rem 1rem;
    font-size: 1rem;
  }
  
  .generate-btn {
    font-size: 0.95rem;
    padding: 1rem 1.25rem;
    margin-top: 1.5rem;
  }
  
  /* Constrain QR display area */
  .qr-display {
    min-height: 180px;
    padding: 1rem;
    max-width: calc(100vw - 1.5rem);
    width: 100%;
    overflow: hidden;
    box-sizing: border-box;
    box-shadow: 2px 2px 0px var(--border-color); /* Smaller shadow on mobile */
  }
  
  #qrcode {
    max-width: 100%;
  }
  
  #qrcode canvas,
  #qrcode img {
    max-width: 100% !important;
    height: auto !important;
  }
  
  .download-actions {
    gap: 0.5rem;
    grid-template-columns: repeat(2, 1fr);
    max-width: 100%;
  }
  
  .download-btn {
    padding: 0.6rem 0.4rem;
    font-size: 0.65rem;
    min-height: 44px;
    white-space: nowrap;
    overflow: hidden;
    gap: 0.25rem;
  }
  
  .download-btn span {
    display: inline; /* Show format text */
  }
  
  .download-btn svg {
    width: 16px;
    height: 16px;
  }
  
  .copy-btn {
    grid-column: span 2;
  }
  
  .toast-container {
    left: 0.75rem;
    right: 0.75rem;
    bottom: 0.75rem;
  }
  
  .toast {
    min-width: auto;
    padding: 0.75rem 1rem;
  }
  
  .toast-message {
    font-size: 0.85rem;
  }
  
  .history-item {
    padding: 0.5rem;
  }
  
  .history-item-preview {
    width: 40px;
    height: 40px;
  }
  
  .advanced-toggle {
    padding: 0.75rem;
    font-size: 0.8rem;
  }
}

/* Print Styles */
@media print {
  .bg-animation,
  .theme-toggle,
  .download-actions,
  .history-panel,
  .customization-panel,
  .generate-btn {
    display: none !important;
  }
  
  .main-content {
    display: block;
  }
  
  .glass-card {
    box-shadow: none;
    border: 2px solid #000;
  }
  
  .qr-display {
    box-shadow: none;
    border: 2px solid #000;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus Styles for Accessibility */
.type-tab:focus-visible,
.form-input:focus-visible,
.form-select:focus-visible,
.form-textarea:focus-visible,
.generate-btn:focus-visible,
.download-btn:focus-visible,
.theme-btn:focus-visible {
  outline: 4px solid var(--neo-blue);
  outline-offset: 2px;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: 1rem 1.5rem;
  background: var(--neo-yellow);
  color: var(--text-primary);
  text-decoration: none;
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-brutal);
  z-index: 1000;
  font-weight: 800;
  text-transform: uppercase;
}

.skip-link:focus {
  top: 1rem;
}

/* Fun hover effects on cards */
.glass-card {
  transition: transform var(--transition-fast);
}

.generator-panel:hover {
  transform: rotate(-0.3deg);
}

.preview-panel:hover {
  transform: rotate(0.3deg);
}