app/globals.css

/*
 * File: app/globals.css
 * Description: Global CSS stylesheet for the PowerPoint generator application
 * This file contains all design tokens, custom CSS variables, and theme configurations
 *
 * Features:
 * - TailwindCSS integration with custom configuration
 * - Animation library import for enhanced UI effects
 * - Light and dark mode theme variables
 * - Custom design tokens for consistent styling
 * - Utility classes for text truncation and chat UI
 */

@import "tailwindcss";

/* Custom variant for dark mode targeting */
@custom-variant dark (&:is(.dark *));

:root {
  /* Base colors for light mode */

  /* UI tokens - define common interface colors and styles */
  --surface: #ffffff;
  /* cards/bars */
  --surface-2: #f5f7fa;
  /* inputs */
  --border: #ebebeb;
  --muted: #f7f7f7;
  --brand: #2563eb;
  /* blue-600 */
  --radius: 0.625rem;
  --background: #ffffff;
  --foreground: #242424;
  --card: #ffffff;
  --card-foreground: #242424;
  --popover: #ffffff;
  --popover-foreground: #242424;
  --primary: #343434;
  --primary-foreground: #fafafa;
  --secondary: #f7f7f7;
  --secondary-foreground: #343434;
  --muted-foreground: #8e8e8e;
  --accent: #f7f7f7;
  --accent-foreground: #343434;
  --destructive: #dc2626;
  --input: #ebebeb;
  --ring: #b5b5b5;
  --chart-1: #f59e0b;
  --chart-2: #06b6d4;
  --chart-3: #3b82f6;
  --chart-4: #facc15;
  --chart-5: #f97316;
  --sidebar: #fafafa;
  --sidebar-foreground: #242424;
  --sidebar-primary: #343434;
  --sidebar-primary-foreground: #fafafa;
  --sidebar-accent: #f7f7f7;
  --sidebar-accent-foreground: #343434;
  --sidebar-border: #ebebeb;
  --sidebar-ring: #b5b5b5;
}

@theme inline {
  /* Neo-brutalism template colors */
  --color-neo-lime: #D9FF00;
  --color-neo-cyan: #00FFFF;
  --color-neo-yellow: #FFD700;
  --color-neo-purple: #A000A0;

  /* Noisy template colors */
  --color-noisy-blue: #547BEE;
  --color-noisy-coral: #F2725C;
  --color-noisy-orange: #FF7A59;
  --color-background: var(--background);
  --color-foreground: var(--foreground);
  --font-sans: var(--font-geist-sans);
  --font-mono: var(--font-geist-mono);
  --color-sidebar-ring: var(--sidebar-ring);
  --color-sidebar-border: var(--sidebar-border);
  --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
  --color-sidebar-accent: var(--sidebar-accent);
  --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
  --color-sidebar-primary: var(--sidebar-primary);
  --color-sidebar-foreground: var(--sidebar-foreground);
  --color-sidebar: var(--sidebar);
  --color-chart-5: var(--chart-5);
  --color-chart-4: var(--chart-4);
  --color-chart-3: var(--chart-3);
  --color-chart-2: var(--chart-2);
  --color-chart-1: var(--chart-1);
  --color-ring: var(--ring);
  --color-input: var(--input);
  --color-border: var(--border);
  --color-destructive: var(--destructive);
  --color-accent-foreground: var(--accent-foreground);
  --color-accent: var(--accent);
  --color-muted-foreground: var(--muted-foreground);
  --color-muted: var(--muted);
  --color-secondary-foreground: var(--secondary-foreground);
  --color-secondary: var(--secondary);
  --color-primary-foreground: var(--primary-foreground);
  --color-primary: var(--primary);
  --color-popover-foreground: var(--popover-foreground);
  --color-popover: var(--popover);
  --color-card-foreground: var(--card-foreground);
  --color-card: var(--card);
  --radius-sm: calc(var(--radius) - 4px);
  --radius-md: calc(var(--radius) - 2px);
  --radius-lg: var(--radius);
  --radius-xl: calc(var(--radius) + 4px);
}

/* Dark mode overrides based on system preference */
@media (prefers-color-scheme: dark) {
  :root {
    --surface: #111113;
    --surface-2: #16181d;
    --border: #2a2b2f;
    --muted: #9ca3af;
    --brand: #60a5fa;
    /* blue-400 */
  }
}

/* Global body styles - Clean flat background for minimalist UI */
body {
  background-color: var(--background);
  font-family: var(--font-geist-sans), ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: #bfdbfe;
  color: #111827;
}

select,
textarea,
input,
button {
  color: inherit;
  font-family: inherit;
}

textarea::placeholder,
input::placeholder {
  color: var(--muted);
  opacity: 1;
}

/* Chat interface theming - Used in chat/input components */
.chat-surface {
  border: 1px solid var(--border);
  background: var(--surface);
}

.chat-input {
  background: var(--surface-2);
  border: 1px solid transparent;
}

.chat-select {
  border: 1px solid var(--border);
  background: var(--surface);
}

.chat-pill {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--foreground);
  opacity: 0.85;
}

.chat-pill-active {
  border-color: #93c5fd;
  background: #eff6ff;
  color: #1d4ed8;
}

.chat-select:focus,
.chat-input:focus,
.chat-pill:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.18);
}

/* Utility classes for text truncation - Used in slide content */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Dark mode theme variables - Applied when .dark class is present */
.dark {
  --background: #242424;
  --foreground: #fafafa;
  --card: #343434;
  --card-foreground: #fafafa;
  --popover: #343434;
  --popover-foreground: #fafafa;
  --primary: #ebebeb;
  --primary-foreground: #343434;
  --secondary: #444444;
  --secondary-foreground: #fafafa;
  --muted: #444444;
  --muted-foreground: #b5b5b5;
  --accent: #444444;
  --accent-foreground: #fafafa;
  --destructive: #ef4444;
  --border: rgba(255, 255, 255, 0.1);
  --input: rgba(255, 255, 255, 0.15);
  --ring: #8e8e8e;
  --chart-1: #8b5cf6;
  --chart-2: #10b981;
  --chart-3: #f97316;
  --chart-4: #c026d3;
  --chart-5: #f43f5e;
  --sidebar: #343434;
  --sidebar-foreground: #fafafa;
  --sidebar-primary: #8b5cf6;
  --sidebar-primary-foreground: #fafafa;
  --sidebar-accent: #444444;
  --sidebar-accent-foreground: #fafafa;
  --sidebar-border: rgba(255, 255, 255, 0.1);
  --sidebar-ring: #8e8e8e;
}

/* Tailwind base layer overrides for consistent styling */
@layer base {
  * {
    @apply border-border outline-ring/50;
  }

  body {
    @apply bg-background text-foreground;
  }
}

/* Typing animation for textarea */
@keyframes blink {

  0%,
  50% {
    border-color: rgba(156, 163, 175, 0.7);
  }

  51%,
  100% {
    border-color: transparent;
  }
}

.typing-animation:focus {
  animation: blink 1s step-end infinite;
  border-right: 2px solid rgba(156, 163, 175, 0.7);
}

/* Hide scrollbar while maintaining scroll functionality */
.scrollbar-hide {
  -ms-overflow-style: none;
  /* IE and Edge */
  scrollbar-width: none;
  /* Firefox */
}

.scrollbar-hide::-webkit-scrollbar {
  display: none;
  /* Chrome, Safari and Opera */
}

/* Canvas element dragging visual feedback */
.is-dragging {
  opacity: 0.9;
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4) !important;
  transform: scale(1.02);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

/* Smooth element transitions */
.group.absolute {
  transition: box-shadow 0.15s ease, ring 0.15s ease;
}

/* Resize handles hover effect */
.group.absolute:hover .resize-handle {
  opacity: 1;
}

/* Text editor improvements */
.text-editor {
  caret-color: #2563eb;
}

.text-editor:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);
}

/* Selection feedback */
.ring-2.ring-blue-500 {
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

/* Alignment guide lines pulse animation */
@keyframes guide-pulse {

  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 6px rgba(59, 130, 246, 0.6);
  }

  50% {
    opacity: 0.7;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.9);
  }
}

/* Alignment guide line styling */
.alignment-guide {
  animation: guide-pulse 0.8s ease-in-out infinite;
}

/* Neo-brutalism template utilities */
.neo-shadow { box-shadow: 8px 8px 0px 0px rgba(0,0,0,1); }
.neo-shadow-lg { box-shadow: 10px 10px 0px 0px rgba(0,0,0,1); }
.neo-shadow-purple { box-shadow: 8px 8px 0px 0px #A000A0; }
.neo-border { border: 3px solid black; }