/* ============================================
   VOXLY DESIGN SYSTEM - DESIGN TOKENS
   ============================================
   A modern messaging platform design system
   with deep purple/indigo identity
   ============================================ */

/* --------------------------------------------
   COLOR PALETTE - Indigo Ink
   Primary: Deep purple/indigo identity
   -------------------------------------------- */
:root {
  /* Primary Colors */
  --color-primary-50: #F5F3FF;
  --color-primary-100: #EDE9FE;
  --color-primary-200: #DDD6FE;
  --color-primary-300: #C4B5FD;
  --color-primary-400: #A78BFA;
  --color-primary-500: #8B5CF6;
  --color-primary-600: #7C3AED;
  --color-primary-700: #6D28D9;
  --color-primary-800: #5B21B6;
  --color-primary-900: #4C1D95;
  --color-primary-950: #2E1065;

  /* Neutral Colors */
  --color-neutral-0: #FFFFFF;
  --color-neutral-50: #FAFAFA;
  --color-neutral-100: #F5F5F5;
  --color-neutral-200: #E5E5E5;
  --color-neutral-300: #D4D4D4;
  --color-neutral-400: #A3A3A3;
  --color-neutral-500: #737373;
  --color-neutral-600: #525252;
  --color-neutral-700: #404040;
  --color-neutral-800: #262626;
  --color-neutral-900: #171717;
  --color-neutral-950: #0A0A0A;

  /* Semantic Colors */
  --color-success-50: #F0FDF4;
  --color-success-500: #22C55E;
  --color-success-600: #16A34A;
  
  --color-warning-50: #FFFBEB;
  --color-warning-500: #F59E0B;
  --color-warning-600: #D97706;
  
  --color-error-50: #FEF2F2;
  --color-error-500: #EF4444;
  --color-error-600: #DC2626;
  
  --color-info-50: #EFF6FF;
  --color-info-500: #3B82F6;
  --color-info-600: #2563EB;

  /* Online Status */
  --color-online: #22C55E;
  --color-away: #F59E0B;
  --color-busy: #EF4444;
  --color-offline: #9CA3AF;

  /* --------------------------------------------
     TYPOGRAPHY - Plus Jakarta Sans + Inter
     -------------------------------------------- */
  --font-family-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Font Sizes */
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */

  /* Font Weights */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;

  /* Letter Spacing */
  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;
  --letter-spacing-wider: 0.05em;

  /* --------------------------------------------
     SPACING - 4px base unit
     -------------------------------------------- */
  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */

  /* --------------------------------------------
     BORDER RADIUS
     -------------------------------------------- */
  --radius-none: 0;
  --radius-sm: 0.25rem;   /* 4px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  --radius-2xl: 1.5rem;   /* 24px */
  --radius-3xl: 2rem;     /* 32px */
  --radius-full: 9999px;

  /* --------------------------------------------
     SHADOWS
     -------------------------------------------- */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);
  
  /* Colored Shadows */
  --shadow-primary: 0 4px 14px 0 rgba(124, 58, 237, 0.39);
  --shadow-success: 0 4px 14px 0 rgba(34, 197, 94, 0.39);
  --shadow-error: 0 4px 14px 0 rgba(239, 68, 68, 0.39);

  /* --------------------------------------------
     TRANSITIONS
     -------------------------------------------- */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* --------------------------------------------
     Z-INDEX SCALE
     -------------------------------------------- */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1080;

  /* --------------------------------------------
     BREAKPOINTS
     -------------------------------------------- */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;

  /* --------------------------------------------
     LAYOUT
     -------------------------------------------- */
  --header-height: 64px;
  --sidebar-width: 280px;
  --sidebar-width-collapsed: 72px;
  --chat-header-height: 64px;
  --chat-input-height: 72px;
  --bottom-nav-height: 64px;
  --status-bar-height: 24px;
}

/* --------------------------------------------
   DARK MODE OVERRIDES
   -------------------------------------------- */
[data-theme="dark"] {
  /* Background Colors */
  --bg-primary: var(--color-neutral-950);
  --bg-secondary: var(--color-neutral-900);
  --bg-tertiary: var(--color-neutral-800);
  --bg-elevated: var(--color-neutral-900);
  
  /* Text Colors */
  --text-primary: var(--color-neutral-50);
  --text-secondary: var(--color-neutral-400);
  --text-tertiary: var(--color-neutral-500);
  --text-muted: var(--color-neutral-600);
  
  /* Border Colors */
  --border-primary: var(--color-neutral-800);
  --border-secondary: var(--color-neutral-700);
  --border-tertiary: var(--color-neutral-600);
  
  /* Surface Colors */
  --surface-primary: var(--color-neutral-900);
  --surface-secondary: var(--color-neutral-800);
  --surface-tertiary: var(--color-neutral-700);
  
  /* Input Colors */
  --input-bg: var(--color-neutral-800);
  --input-border: var(--color-neutral-700);
  --input-focus: var(--color-primary-500);
  
  /* Message Bubble Colors */
  --message-sent-bg: var(--color-primary-600);
  --message-sent-text: var(--color-neutral-0);
  --message-received-bg: var(--color-neutral-800);
  --message-received-text: var(--color-neutral-100);
}

/* --------------------------------------------
   LIGHT MODE (DEFAULT)
   -------------------------------------------- */
[data-theme="light"] {
  /* Background Colors */
  --bg-primary: var(--color-neutral-0);
  --bg-secondary: var(--color-neutral-50);
  --bg-tertiary: var(--color-neutral-100);
  --bg-elevated: var(--color-neutral-0);
  
  /* Text Colors */
  --text-primary: var(--color-neutral-950);
  --text-secondary: var(--color-neutral-600);
  --text-tertiary: var(--color-neutral-500);
  --text-muted: var(--color-neutral-400);
  
  /* Border Colors */
  --border-primary: var(--color-neutral-200);
  --border-secondary: var(--color-neutral-300);
  --border-tertiary: var(--color-neutral-400);
  
  /* Surface Colors */
  --surface-primary: var(--color-neutral-0);
  --surface-secondary: var(--color-neutral-50);
  --surface-tertiary: var(--color-neutral-100);
  
  /* Input Colors */
  --input-bg: var(--color-neutral-100);
  --input-border: var(--color-neutral-300);
  --input-focus: var(--color-primary-500);
  
  /* Message Bubble Colors */
  --message-sent-bg: var(--color-primary-600);
  --message-sent-text: var(--color-neutral-0);
  --message-received-bg: var(--color-neutral-100);
  --message-received-text: var(--color-neutral-900);
}

/* --------------------------------------------
   ANIMATION KEYFRAMES
   -------------------------------------------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes typing {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

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

/* --------------------------------------------
   UTILITY CLASSES
   -------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.line-clamp-1 {
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

/* Scrollbar Styling */
.custom-scrollbar::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

.custom-scrollbar::-webkit-scrollbar-track {
  background: transparent;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
  background: var(--color-neutral-400);
  border-radius: var(--radius-full);
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background: var(--color-neutral-500);
}

/* Focus Ring */
.focus-ring {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-primary-500), 0 0 0 4px var(--color-primary-100);
}

/* Glass Effect */
.glass {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

[data-theme="dark"] .glass {
  background: rgba(23, 23, 23, 0.8);
}