/* ToolHub - Neo-Brutalism Design System */

/* ===========================================
   CSS Variables - Bold & Playful
   =========================================== */
:root {
  /* Brand Colors - Vibrant & Saturated */
  --primary: #FF6B35;
  --primary-dark: #E85A2A;
  --primary-light: #FF8C61;
  --secondary: #4ECDC4;
  --accent: #FFE66D;
  --accent-2: #A8DADC;

  /* Semantic Colors */
  --danger: #FF4757;
  --success: #2ED573;
  --warning: #FFA502;
  --info: #5F27CD;

  /* Neutrals - High Contrast */
  --black: #1A1A1A;
  --white: #FFFFFF;
  --gray-50: #F8F9FA;
  --gray-100: #E9ECEF;
  --gray-200: #DEE2E6;
  --gray-300: #CED4DA;
  --gray-400: #ADB5BD;
  --gray-500: #6C757D;
  --gray-600: #495057;
  --gray-700: #343A40;
  --gray-800: #212529;
  --gray-900: #1A1A1A;

  /* Light Mode Tokens */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8F9FA;
  --bg-tertiary: #E9ECEF;
  --text-primary: #1A1A1A;
  --text-secondary: #495057;
  --text-muted: #6C757D;
  --border-color: #1A1A1A;
  --border-width: 3px;

  /* Brutalist Borders & Shadows */
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --shadow-brutal: 6px 6px 0 var(--black);
  --shadow-brutal-lg: 10px 10px 0 var(--black);
  --shadow-brutal-hover: 8px 8px 0 var(--black);
  --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Typography */
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;
}

/* Dark Mode - Still Brutal */
.dark {
  --bg-primary: #1A1A1A;
  --bg-secondary: #212529;
  --bg-tertiary: #343A40;
  --text-primary: #FFFFFF;
  --text-secondary: #DEE2E6;
  --text-muted: #ADB5BD;
  --border-color: #FFFFFF;

  --shadow-brutal: 6px 6px 0 var(--accent);
  --shadow-brutal-lg: 10px 10px 0 var(--accent);
  --shadow-brutal-hover: 8px 8px 0 var(--accent);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

/* ===========================================
   Brutal Components
   =========================================== */

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Brutal Card */
.card,
.brutal-card {
  background: var(--bg-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-brutal);
  padding: 2rem;
  transition: all var(--transition);
}

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

/* Brutal Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 4px 4px 0 var(--black);
  position: relative;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.dark .btn {
  box-shadow: 4px 4px 0 var(--accent);
}

.btn:active {
  transform: translate(4px, 4px);
  box-shadow: 0 0 0 var(--black);
}

.dark .btn:active {
  box-shadow: 0 0 0 var(--accent);
}

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

.dark .btn-primary {
  border-color: var(--white);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
}

.dark .btn-primary:hover {
  box-shadow: 6px 6px 0 var(--accent);
}

.btn-secondary {
  background: var(--secondary);
  color: var(--black);
  border-color: var(--black);
}

.dark .btn-secondary {
  border-color: var(--white);
}

.btn-secondary:hover {
  background: var(--accent-2);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
}

.dark .btn-secondary:hover {
  box-shadow: 6px 6px 0 var(--accent);
}

.btn-accent {
  background: var(--accent);
  color: var(--black);
  border-color: var(--black);
}

.dark .btn-accent {
  border-color: var(--white);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-lg {
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: 4px 4px 0 var(--black) !important;
}

.dark .btn:disabled {
  box-shadow: 4px 4px 0 var(--accent) !important;
}

/* Form Inputs - Brutal Style */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius);
  transition: all var(--transition);
  box-shadow: 4px 4px 0 var(--black);
}

.dark .form-input,
.dark .form-select,
.dark .form-textarea {
  box-shadow: 4px 4px 0 var(--accent);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
}

.dark .form-input:focus,
.dark .form-select:focus,
.dark .form-textarea:focus {
  box-shadow: 6px 6px 0 var(--accent);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  font-family: var(--font-mono);
}

.form-hint {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* Upload Zone - Brutal */
.upload-zone {
  border: var(--border-width) dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.upload-zone::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, var(--primary), var(--secondary), var(--accent));
  opacity: 0;
  transition: opacity var(--transition);
  z-index: -1;
  border-radius: var(--radius-lg);
}

.upload-zone:hover {
  border-style: solid;
  background: var(--bg-primary);
  transform: scale(1.02);
}

.upload-zone:hover::before {
  opacity: 0.1;
}

.upload-zone.drag-over {
  border-style: solid;
  border-color: var(--primary);
  background: var(--primary);
  color: var(--white);
  transform: scale(1.05);
}

.upload-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: inline-block;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

/* Tool Header */
.tool-main {
  min-height: calc(100vh - 200px);
  padding: 3rem 0;
}

.tool-header {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.tool-title {
  font-size: 3rem;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: -0.03em;
  position: relative;
  display: inline-block;
}

.tool-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 6px;
  background: var(--primary);
  transform: skew(-2deg);
}

.tool-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Tool Tabs - Brutal */
.tool-tabs {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.tool-tab {
  padding: 1rem 2rem;
  background: var(--bg-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  transition: all var(--transition);
  box-shadow: 4px 4px 0 var(--black);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.dark .tool-tab {
  box-shadow: 4px 4px 0 var(--accent);
}

.tool-tab:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
}

.dark .tool-tab:hover {
  box-shadow: 6px 6px 0 var(--accent);
}

.tool-tab.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--black);
  box-shadow: 6px 6px 0 var(--black);
}

.dark .tool-tab.active {
  border-color: var(--white);
  box-shadow: 6px 6px 0 var(--accent);
}

.tool-tab.active:hover {
  box-shadow: 8px 8px 0 var(--black);
}

.dark .tool-tab.active:hover {
  box-shadow: 8px 8px 0 var(--accent);
}

/* PDF/File Items - Brutal Cards */
.pdf-item,
.file-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: 1rem;
  box-shadow: 4px 4px 0 var(--black);
  transition: all var(--transition);
}

.dark .pdf-item,
.dark .file-item {
  box-shadow: 4px 4px 0 var(--accent);
}

.pdf-item:hover,
.file-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
}

.dark .pdf-item:hover,
.dark .file-item:hover {
  box-shadow: 6px 6px 0 var(--accent);
}

.pdf-item-icon,
.file-item-icon {
  width: 56px;
  height: 56px;
  background: var(--primary);
  border: var(--border-width) solid var(--black);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 900;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.pdf-item-info,
.file-item-info {
  flex: 1;
  min-width: 0;
}

.pdf-item-name,
.file-item-name {
  font-weight: 700;
  margin-bottom: 0.25rem;
  word-break: break-all;
  color: var(--text-primary);
}

.pdf-item-meta,
.file-item-meta {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 600;
}

.pdf-item-actions,
.file-item-actions {
  display: flex;
  gap: 0.5rem;
}

.pdf-item-btn,
.file-item-btn {
  width: 40px;
  height: 40px;
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  background: var(--bg-secondary);
  box-shadow: 2px 2px 0 var(--black);
}

.dark .pdf-item-btn,
.dark .file-item-btn {
  box-shadow: 2px 2px 0 var(--accent);
}

.pdf-item-btn:hover,
.file-item-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--black);
}

.dark .pdf-item-btn:hover,
.dark .file-item-btn:hover {
  box-shadow: 3px 3px 0 var(--accent);
}

.pdf-item-btn:active,
.file-item-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 0 0 0 var(--black);
}

.dark .pdf-item-btn:active,
.dark .file-item-btn:active {
  box-shadow: 0 0 0 var(--accent);
}

.pdf-item-btn.remove,
.file-item-btn.remove {
  background: var(--danger);
  color: var(--white);
  border-color: var(--black);
}

.dark .pdf-item-btn.remove,
.dark .file-item-btn.remove {
  border-color: var(--white);
}

/* Result Panel - Celebration Style */
.result-panel {
  background: var(--primary);
  color: var(--white);
  border: var(--border-width) solid var(--black);
  border-radius: var(--radius-xl);
  padding: 3rem 2rem;
  text-align: center;
  margin-top: 2rem;
  box-shadow: var(--shadow-brutal-lg);
  position: relative;
  overflow: hidden;
}

.result-panel::before {
  content: '🎉';
  position: absolute;
  font-size: 8rem;
  opacity: 0.1;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.result-panel h3 {
  color: var(--white);
  margin-bottom: 1rem;
  font-size: 2rem;
  text-transform: uppercase;
}

.result-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin: 2rem 0;
  flex-wrap: wrap;
}

.result-stat {
  text-align: center;
}

.result-stat-value {
  font-size: 2.5rem;
  font-weight: 900;
  display: block;
}

.result-stat-label {
  font-size: 0.875rem;
  opacity: 0.9;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

/* Processing Status */
.processing-status {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2rem;
  background: var(--bg-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-xl);
  margin-top: 2rem;
  box-shadow: var(--shadow-brutal);
}

.processing-status.active {
  display: flex;
}

/* Spinner - Brutal */
.spinner {
  width: 32px;
  height: 32px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Action Panel */
.action-panel {
  background: var(--bg-secondary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-brutal);
}

/* Split/Compress Options */
.split-options,
.compress-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.split-option,
.compress-option {
  padding: 1.5rem;
  text-align: center;
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg-primary);
  box-shadow: 4px 4px 0 var(--black);
}

.dark .split-option,
.dark .compress-option {
  box-shadow: 4px 4px 0 var(--accent);
}

.split-option:hover,
.compress-option:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
}

.dark .split-option:hover,
.dark .compress-option:hover {
  box-shadow: 6px 6px 0 var(--accent);
}

.split-option.active,
.compress-option.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--black);
  box-shadow: 6px 6px 0 var(--black);
}

.dark .split-option.active,
.dark .compress-option.active {
  border-color: var(--white);
  box-shadow: 6px 6px 0 var(--accent);
}

.split-option h4,
.compress-option h4 {
  margin-bottom: 0.5rem;
  font-weight: 800;
  text-transform: uppercase;
}

.split-option p,
.compress-option p {
  font-size: 0.875rem;
  margin: 0;
  opacity: 0.9;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.font-bold {
  font-weight: 700;
}

.font-black {
  font-weight: 900;
}

.text-sm {
  font-size: 0.875rem;
}

.text-lg {
  font-size: 1.125rem;
}

.text-xl {
  font-size: 1.25rem;
}

.mb-2 {
  margin-bottom: 0.5rem;
}

.mb-4 {
  margin-bottom: 1rem;
}

.mb-6 {
  margin-bottom: 1.5rem;
}

.mt-4 {
  margin-top: 1rem;
}

.mt-6 {
  margin-top: 1.5rem;
}

.m-0 {
  margin: 0;
}

.w-full {
  width: 100%;
}

.flex {
  display: flex;
}

.justify-between {
  justify-content: space-between;
}

.items-center {
  align-items: center;
}

.gap-2 {
  gap: 0.5rem;
}

.gap-4 {
  gap: 1rem;
}

/* Glass Effect */
.glass {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.dark .glass {
  background: rgba(26, 26, 26, 0.9);
}

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Hover Lift - Brutal Style */
.hover-lift {
  transition: all var(--transition);
}

.hover-lift:hover {
  transform: translate(-4px, -4px);
}

/* Range Slider - Brutal */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 12px;
  border-radius: 6px;
  background: var(--bg-tertiary);
  border: var(--border-width) solid var(--border-color);
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--primary);
  border: var(--border-width) solid var(--black);
  cursor: pointer;
  box-shadow: 2px 2px 0 var(--black);
}

.dark input[type="range"]::-webkit-slider-thumb {
  border-color: var(--white);
  box-shadow: 2px 2px 0 var(--accent);
}

input[type="range"]::-moz-range-thumb {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--primary);
  border: var(--border-width) solid var(--black);
  cursor: pointer;
  box-shadow: 2px 2px 0 var(--black);
}

.dark input[type="range"]::-moz-range-thumb {
  border-color: var(--white);
  box-shadow: 2px 2px 0 var(--accent);
}

/* Toggle Switch - Brutal */
.toggle-switch {
  position: relative;
  width: 60px;
  height: 32px;
}

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

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--bg-tertiary);
  border: var(--border-width) solid var(--border-color);
  border-radius: 32px;
  cursor: pointer;
  transition: all var(--transition);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  left: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--text-primary);
  border: 2px solid var(--border-color);
  border-radius: 4px;
  transition: all var(--transition-bounce);
}

.toggle-switch input:checked+.toggle-slider {
  background: var(--primary);
}

.toggle-switch input:checked+.toggle-slider::before {
  transform: translateY(-50%) translateX(28px);
  background: var(--white);
}

/* Language Switcher - Brutal */
.language-switcher {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  background: var(--bg-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 700;
  transition: all var(--transition);
  box-shadow: 2px 2px 0 var(--black);
  text-transform: uppercase;
}

.dark .lang-btn {
  box-shadow: 2px 2px 0 var(--accent);
}

.lang-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--black);
}

.dark .lang-btn:hover {
  box-shadow: 3px 3px 0 var(--accent);
}

.lang-code {
  font-weight: 900;
  font-size: 0.75rem;
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 0.75rem);
  right: 0;
  background: var(--bg-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-brutal);
  min-width: 200px;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition);
  overflow: hidden;
}

.lang-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  padding: 1rem 1.25rem;
  cursor: pointer;
  transition: all var(--transition);
  font-weight: 600;
  border: none;
  border-bottom: var(--border-width) solid var(--border-color);
  background: transparent;
  width: 100%;
  text-align: left;
  color: var(--text-primary);
  display: block;
}

.lang-option:last-child {
  border-bottom: none;
}

.lang-option:hover {
  background: var(--primary);
  color: var(--white);
}

.lang-option.active {
  background: var(--bg-tertiary);
  font-weight: 900;
}

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

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

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

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}

/* Dark mode scrollbar */
.dark ::-webkit-scrollbar-thumb {
  background: var(--accent);
}

.dark ::-webkit-scrollbar-thumb:hover {
  background: var(--secondary);
}

/* Panel Buttons */
.panel-btn {
  padding: 0.75rem 1.5rem;
  background: var(--bg-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--text-primary);
  transition: all var(--transition);
  box-shadow: 3px 3px 0 var(--black);
  text-transform: uppercase;
}

.dark .panel-btn {
  box-shadow: 3px 3px 0 var(--accent);
}

.panel-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--black);
}

.dark .panel-btn:hover {
  box-shadow: 4px 4px 0 var(--accent);
}

.panel-btn:active {
  transform: translate(3px, 3px);
  box-shadow: 0 0 0 var(--black);
}

.dark .panel-btn:active {
  box-shadow: 0 0 0 var(--accent);
}

/* Responsive */
@media (max-width: 768px) {
  .tool-title {
    font-size: 2rem;
  }

  .btn {
    padding: 0.875rem 1.5rem;
  }

  .result-stat-value {
    font-size: 2rem;
  }
}

/* Animations */
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: slideIn 0.4s ease-out;
}

/* Focus States - Accessible */
.focus-ring:focus {
  outline: 4px solid var(--primary);
  outline-offset: 2px;
}


button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 4px solid var(--primary);
  outline-offset: 2px;
}

/* ===========================================
   Toast Notifications - Brutal Style
   =========================================== */
.toast-container {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 400px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--bg-primary);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-brutal);
  font-weight: 600;
  animation: toastIn 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  cursor: pointer;
  transition: all var(--transition);
}

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

.toast-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.toast-success {
  background: var(--success);
  color: var(--white);
  border-color: var(--black);
}

.dark .toast-success {
  border-color: var(--white);
}

.toast-error {
  background: var(--danger);
  color: var(--white);
  border-color: var(--black);
}

.dark .toast-error {
  border-color: var(--white);
}

.toast-warning {
  background: var(--warning);
  color: var(--black);
  border-color: var(--black);
}

.toast-info {
  background: var(--info);
  color: var(--white);
  border-color: var(--black);
}

.dark .toast-info {
  border-color: var(--white);
}

.toast-out {
  animation: toastOut 0.2s ease-in forwards;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(100%) scale(0.8);
  }

  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes toastOut {
  from {
    opacity: 1;
    transform: translateX(0) scale(1);
  }

  to {
    opacity: 0;
    transform: translateX(100%) scale(0.8);
  }
}

/* Mobile responsive */
@media (max-width: 640px) {
  .toast-container {
    top: 1rem;
    right: 1rem;
    left: 1rem;
    max-width: none;
  }
}