/* Word Cloud Generator - Light & Clean Theme with AhaSlides Brand */

:root {
  /* AhaSlides Brand Colors */
  --radical-pink: #FF4081;
  --violet-purple: #6A1EBB;
  --bright-teal: #20E8B5;
  --deep-blue: #0047FF;
  --pure-white: #FFFFFF;

  /* Light Theme Colors */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8F9FA;
  --bg-tertiary: #F0F2F5;

  /* Text Colors */
  --text-primary: #1A1A1A;
  --text-secondary: #6B7280;
  --text-muted: #9CA3AF;

  /* Borders */
  --border-light: #E5E7EB;
  --border-medium: #D1D5DB;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  /* Transitions */
  --transition: 0.2s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

/* Header */
.header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md) 0;
}

.header h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--violet-purple);
  margin-bottom: var(--spacing-xs);
}

.header p {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* Two Column Layout */
.two-column-layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: var(--spacing-lg);
  align-items: start;
}

.left-panel {
  position: sticky;
  top: var(--spacing-lg);
}

.right-panel {
  min-height: 500px;
}

/* Card */
.glass-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}

.glass-card:hover {
  box-shadow: var(--shadow-md);
}

/* Section Titles */
.glass-card h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

/* Input Tabs */
.input-tabs {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
  background: var(--bg-secondary);
  padding: 4px;
  border-radius: var(--radius-md);
}

.tab-btn {
  flex: 1;
  padding: var(--spacing-sm);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--bg-primary);
  color: var(--violet-purple);
  box-shadow: var(--shadow-sm);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Text Input */
.text-input {
  width: 100%;
  min-height: 150px;
  padding: var(--spacing-md);
  background: var(--bg-primary);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  resize: vertical;
  transition: border-color var(--transition);
}

.text-input:focus {
  outline: none;
  border-color: var(--violet-purple);
}

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

/* File Upload */
.file-upload-area {
  border: 2px dashed var(--border-medium);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg-secondary);
}

.file-upload-area:hover {
  border-color: var(--violet-purple);
  background: var(--bg-tertiary);
}

.file-upload-area input[type="file"] {
  display: none;
}

.upload-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

.file-upload-area h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

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

.file-name {
  margin-top: var(--spacing-sm);
  color: var(--bright-teal);
  font-weight: 600;
  font-size: 0.9rem;
}

/* Controls */
.controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.control-group label {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.85rem;
}

.control-group input[type="number"],
.control-group select {
  padding: var(--spacing-sm);
  background: var(--bg-primary);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: border-color var(--transition);
}

.control-group input[type="number"]:focus,
.control-group select:focus {
  outline: none;
  border-color: var(--violet-purple);
}

/* Toggle Switch */
.toggle-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm);
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
}

.toggle-group label:first-child {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.85rem;
}

.toggle-switch {
  position: relative;
  width: 50px;
  height: 26px;
}

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

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--border-medium);
  transition: var(--transition);
  border-radius: 26px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: var(--transition);
  border-radius: 50%;
}

input:checked+.toggle-slider {
  background-color: var(--radical-pink);
}

input:checked+.toggle-slider:before {
  transform: translateX(24px);
}

/* Buttons */
.btn {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}

.btn-primary {
  background: var(--violet-purple);
  color: white;
  box-shadow: var(--shadow-sm);
  width: 100%;
}

.btn-primary:hover {
  background: #5A18A0;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

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

.btn-secondary {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 2px solid var(--border-light);
}

.btn-secondary:hover {
  border-color: var(--violet-purple);
  color: var(--violet-purple);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Action Buttons */
.action-buttons {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

/* Canvas Container */
.canvas-container {
  display: none;
}

.canvas-container.active {
  display: block;
}

.canvas-wrapper {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  text-align: center;
}

#wordCloudCanvas {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

/* Export Options */
.export-section {
  margin-top: var(--spacing-md);
}

.export-section h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.export-buttons {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-sm);
}

.export-btn {
  padding: var(--spacing-sm);
  background: var(--bg-primary);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 0.85rem;
}

.export-btn:hover {
  border-color: var(--violet-purple);
  color: var(--violet-purple);
  transform: translateY(-1px);
}

/* Loading */
.loading {
  display: none;
  text-align: center;
  padding: var(--spacing-xl);
}

.loading.active {
  display: block;
}

.spinner {
  width: 40px;
  height: 40px;
  margin: 0 auto var(--spacing-sm);
  border: 3px solid var(--border-light);
  border-top: 3px solid var(--violet-purple);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

.loading p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Footer */
footer {
  text-align: center;
  padding: var(--spacing-lg) 0;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: var(--spacing-lg);
}

footer p {
  margin: var(--spacing-xs) 0;
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .two-column-layout {
    grid-template-columns: 380px 1fr;
  }
}

@media (max-width: 900px) {
  .two-column-layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .left-panel {
    position: static;
  }

  .controls {
    grid-template-columns: 1fr 1fr;
  }

  .export-buttons {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .header h1 {
    font-size: 1.5rem;
  }

  .container {
    padding: var(--spacing-md);
  }

  .controls {
    grid-template-columns: 1fr;
  }

  .export-buttons {
    grid-template-columns: repeat(2, 1fr);
  }
}