/* cyrillic-ext */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(/_next/static/media/ba9851c3c22cd980-s.woff2) format('woff2');
  unicode-range: U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
/* cyrillic */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(/_next/static/media/21350d82a1f187e9-s.woff2) format('woff2');
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
/* greek-ext */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(/_next/static/media/c5fe6dc8356a8c31-s.woff2) format('woff2');
  unicode-range: U+1F00-1FFF;
}
/* greek */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(/_next/static/media/19cfc7226ec3afaa-s.woff2) format('woff2');
  unicode-range: U+0370-0377, U+037A-037F, U+0384-038A, U+038C, U+038E-03A1, U+03A3-03FF;
}
/* vietnamese */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(/_next/static/media/df0a9ae256c0569c-s.woff2) format('woff2');
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}
/* latin-ext */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(/_next/static/media/8e9860b6e62d6359-s.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(/_next/static/media/e4af272ccee01ff0-s.p.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}@font-face {font-family: 'Inter Fallback';src: local("Arial");ascent-override: 90.44%;descent-override: 22.52%;line-gap-override: 0.00%;size-adjust: 107.12%
}.__className_f367f3 {font-family: 'Inter', 'Inter Fallback';font-style: normal
}

:root {
  /* Base neutrals (light) */
  --bg:            0 0% 100%;
  --fg:            222 47% 11%;
  --muted:         210 15% 96%;
  --muted-foreground: 222 14% 36%;
  --card:          0 0% 100%;
  --card-foreground: 222 47% 11%;
  --popover:       0 0% 100%;
  --popover-foreground: 222 47% 11%;
  --border:        220 13% 91%;
  --input:         220 13% 91%;
  --ring:          221 83% 53%;

  /* Brand (Tutcart Blue) */
  --brand:         217 91% 60%;  /* #3B82F6 blue-500 */
  --brand-foreground: 0 0% 100%;
  
  /* Primary (Tutcart Blue) */
  --primary:       217 91% 60%;  /* #3B82F6 blue-500 */
  --primary-foreground: 0 0% 100%;

  /* Indigo link/selection */
  --indigo:        226 70% 55%;
  --indigo-foreground: 0 0% 100%;

  /* Accent surfaces */
  --accent:        210 20% 98%;
  --accent-foreground: 222 47% 11%;

  /* Destructive */
  --destructive:   0 84% 60%;
  --destructive-foreground: 0 0% 100%;

  /* Radii */
  --radius-sm: 8px;
  --radius:    12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;

  /* Shadows/Elevation */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 2px 12px -2px rgba(0, 0, 0, 0.08), 0 1px 4px 0 rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 24px -8px rgba(0, 0, 0, 0.18), 0 6px 12px -4px rgba(0, 0, 0, 0.12);

  /* Typography (shared across themes) */
  --font-sans: 
    ui-sans-serif,
    system-ui,
    -apple-system,
    "SF Pro Text",
    "Inter",
    "Segoe UI",
    Roboto,
    Helvetica,
    Arial,
    "Apple Color Emoji",
    "Segoe UI Emoji";
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, "Courier New", monospace;

  /* Spacing (8pt grid) */
  --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 */

  /* Layout */
  --navbar-h: 56px;
  --sidebar-w: 256px;
  --sidebar-w-collapsed: 80px;
  --content-max-w: 1800px;

  /* Motion */
  --ease-soft: cubic-bezier(.18,.69,.23,.99);
  --dur-xxs: 120ms;
  --dur-xs:  160ms;
  --dur-sm:  200ms;
  --dur-md:  300ms;
  --dur-lg:  400ms;
  --dur-xl:  600ms;
  --dur-xxl: 800ms;
}

html.dark {
  /* Dark theme overrides */
  --bg:            224 15% 10%;
  --fg:            210 20% 98%;
  --muted:         224 14% 14%;
  --muted-foreground: 217 10% 65%;
  --card:          224 15% 12%;
  --card-foreground: 210 20% 98%;
  --popover:       224 15% 12%;
  --popover-foreground: 210 20% 98%;
  --border:        220 9% 26%;
  --input:         220 9% 26%;
  --ring:          221 83% 66%;

  /* Brand (Tutcart Blue — dark) */
  --brand:         213 94% 68%;  /* #60A5FA blue-400 */
  --brand-foreground: 0 0% 100%;

  /* Primary (Tutcart Blue — dark) */
  --primary:       213 94% 68%;  /* #60A5FA blue-400 */
  --primary-foreground: 0 0% 100%;

  /* Indigo (dark) */
  --indigo:        226 70% 65%;
  --indigo-foreground: 0 0% 100%;

  /* Accent (dark) */
  --accent:        224 14% 14%;
  --accent-foreground: 210 20% 98%;

  /* Destructive (dark) */
  --destructive:   0 74% 60%;
  --destructive-foreground: 0 0% 100%;
}
/* TutTrack Enhanced Theme System */
/* Comprehensive dark/light mode support with modern design patterns */

:root {
  /* TutTrack Brand Colors */
  --tuttrack-primary: 217 91% 60%;        /* #3B82F6 - Blue brand */
  --tuttrack-primary-foreground: 0 0% 100%;
  --tuttrack-secondary: 226 70% 55%;       /* #3B82F6 - Blue accent */
  --tuttrack-secondary-foreground: 0 0% 100%;
  
  /* Status Colors */
  --tuttrack-success: 142 76% 36%;         /* #22C55E - Green */
  --tuttrack-success-foreground: 0 0% 100%;
  --tuttrack-warning: 38 92% 50%;          /* #F59E0B - Amber */
  --tuttrack-warning-foreground: 0 0% 100%;
  --tuttrack-error: 0 84% 60%;             /* #EF4444 - Red */
  --tuttrack-error-foreground: 0 0% 100%;
  --tuttrack-info: 199 89% 48%;            /* #06B6D4 - Cyan */
  --tuttrack-info-foreground: 0 0% 100%;
  
  /* Surface Colors - Light Mode */
  --tuttrack-bg-primary: 0 0% 100%;        /* Pure white */
  --tuttrack-bg-secondary: 210 20% 98%;    /* Very light gray */
  --tuttrack-bg-tertiary: 210 15% 96%;     /* Light gray */
  --tuttrack-bg-elevated: 0 0% 100%;       /* White with shadow */
  --tuttrack-bg-glass: 255 255 255 / 0.8;  /* Glass effect */
  
  /* Text Colors - Light Mode */
  --tuttrack-text-primary: 222 47% 11%;    /* Dark gray */
  --tuttrack-text-secondary: 222 14% 36%;  /* Medium gray */
  --tuttrack-text-tertiary: 220 9% 46%;    /* Light gray */
  --tuttrack-text-inverse: 0 0% 100%;      /* White */
  
  /* Border Colors - Light Mode */
  --tuttrack-border-primary: 220 13% 91%;  /* Light border */
  --tuttrack-border-secondary: 220 9% 46%; /* Medium border */
  --tuttrack-border-focus: 217 91% 60%;   /* Brand blue */
  
  /* Interactive States */
  --tuttrack-hover: 210 20% 98%;           /* Light hover */
  --tuttrack-active: 210 15% 96%;          /* Active state */
  --tuttrack-selected: 217 91% 60% / 0.1; /* Selected with brand color */
  
  /* Scanner Specific */
  --tuttrack-scanner-bg: 224 15% 10%;      /* Dark scanner background */
  --tuttrack-scanner-overlay: 0 0% 0% / 0.5; /* Scanner overlay */
  --tuttrack-scanner-frame: 0 0% 100% / 0.8; /* Scanner frame */
  
  /* Map Specific */
  --tuttrack-map-bg: 210 20% 98%;          /* Light map background */
  --tuttrack-map-marker: 217 91% 60%;     /* Brand blue markers */
  --tuttrack-map-cluster: 226 70% 55%;     /* Blue clusters */
  
  /* Analytics Specific */
  --tuttrack-chart-primary: 217 91% 60%;  /* Primary chart color */
  --tuttrack-chart-secondary: 226 70% 55%; /* Secondary chart color */
  --tuttrack-chart-success: 142 76% 36%;   /* Success chart color */
  --tuttrack-chart-warning: 38 92% 50%;    /* Warning chart color */
  --tuttrack-chart-error: 0 84% 60%;       /* Error chart color */
  
  /* Shadows */
  --tuttrack-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --tuttrack-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --tuttrack-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --tuttrack-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --tuttrack-shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Gradients */
  --tuttrack-gradient-primary: linear-gradient(135deg, hsl(var(--tuttrack-primary)), hsl(var(--tuttrack-secondary)));
  --tuttrack-gradient-success: linear-gradient(135deg, hsl(var(--tuttrack-success)), hsl(142 76% 46%));
  --tuttrack-gradient-warning: linear-gradient(135deg, hsl(var(--tuttrack-warning)), hsl(38 92% 60%));
  --tuttrack-gradient-error: linear-gradient(135deg, hsl(var(--tuttrack-error)), hsl(0 84% 70%));
  
  /* Animations */
  --tuttrack-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --tuttrack-transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --tuttrack-transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Spacing Scale */
  --tuttrack-space-xs: 0.25rem;   /* 4px */
  --tuttrack-space-sm: 0.5rem;    /* 8px */
  --tuttrack-space-md: 1rem;      /* 16px */
  --tuttrack-space-lg: 1.5rem;    /* 24px */
  --tuttrack-space-xl: 2rem;      /* 32px */
  --tuttrack-space-2xl: 3rem;     /* 48px */
  --tuttrack-space-3xl: 4rem;     /* 64px */
  
  /* Border Radius */
  --tuttrack-radius-sm: 0.375rem;  /* 6px */
  --tuttrack-radius-md: 0.5rem;    /* 8px */
  --tuttrack-radius-lg: 0.75rem;   /* 12px */
  --tuttrack-radius-xl: 1rem;      /* 16px */
  --tuttrack-radius-2xl: 1.5rem;   /* 24px */
  --tuttrack-radius-full: 9999px;
}

/* Dark Mode Overrides */
html.dark {
  /* Surface Colors - Dark Mode */
  --tuttrack-bg-primary: 224 15% 10%;      /* Very dark gray */
  --tuttrack-bg-secondary: 224 14% 14%;    /* Dark gray */
  --tuttrack-bg-tertiary: 220 9% 26%;      /* Medium dark gray */
  --tuttrack-bg-elevated: 224 15% 12%;     /* Elevated dark surface */
  --tuttrack-bg-glass: 0 0% 0% / 0.8;      /* Dark glass effect */
  
  /* Text Colors - Dark Mode */
  --tuttrack-text-primary: 210 20% 98%;    /* Light gray */
  --tuttrack-text-secondary: 217 10% 65%;  /* Medium light gray */
  --tuttrack-text-tertiary: 220 9% 46%;    /* Dark gray */
  --tuttrack-text-inverse: 222 47% 11%;    /* Dark text on light */
  
  /* Border Colors - Dark Mode */
  --tuttrack-border-primary: 220 9% 26%;   /* Dark border */
  --tuttrack-border-secondary: 217 10% 65%; /* Light border */
  --tuttrack-border-focus: 213 94% 68%;   /* Brighter brand blue */
  
  /* Interactive States - Dark Mode */
  --tuttrack-hover: 224 14% 14%;           /* Dark hover */
  --tuttrack-active: 220 9% 26%;           /* Dark active */
  --tuttrack-selected: 217 91% 60% / 0.2; /* Selected with brand color */
  
  /* Scanner Specific - Dark Mode */
  --tuttrack-scanner-bg: 0 0% 0%;          /* Pure black scanner */
  --tuttrack-scanner-overlay: 0 0% 0% / 0.7; /* Darker scanner overlay */
  --tuttrack-scanner-frame: 0 0% 100% / 0.9; /* Brighter scanner frame */
  
  /* Map Specific - Dark Mode */
  --tuttrack-map-bg: 224 15% 10%;          /* Dark map background */
  --tuttrack-map-marker: 213 94% 68%;     /* Brighter brand blue markers */
  --tuttrack-map-cluster: 226 70% 65%;     /* Brighter blue clusters */
  
  /* Shadows - Dark Mode */
  --tuttrack-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --tuttrack-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --tuttrack-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --tuttrack-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
  --tuttrack-shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* TutTrack Component Classes */
.tuttrack-card {
  background: hsl(var(--tuttrack-bg-elevated));
  border: 1px solid hsl(var(--tuttrack-border-primary));
  border-radius: var(--tuttrack-radius-lg);
  box-shadow: var(--tuttrack-shadow-md);
  transition: all var(--tuttrack-transition-normal);
}

.tuttrack-card:hover {
  box-shadow: var(--tuttrack-shadow-lg);
  transform: translateY(-2px);
}

.tuttrack-card-interactive {
  cursor: pointer;
  transition: all var(--tuttrack-transition-normal);
}

.tuttrack-card-interactive:hover {
  background: hsl(var(--tuttrack-hover));
  border-color: hsl(var(--tuttrack-border-focus));
  transform: translateY(-2px);
  box-shadow: var(--tuttrack-shadow-lg);
}

.tuttrack-card-selected {
  background: hsl(var(--tuttrack-selected));
  border-color: hsl(var(--tuttrack-border-focus));
  box-shadow: 0 0 0 1px hsl(var(--tuttrack-border-focus));
}

.tuttrack-button-primary {
  background: hsl(var(--tuttrack-primary));
  color: hsl(var(--tuttrack-primary-foreground));
  border: none;
  border-radius: var(--tuttrack-radius-md);
  padding: var(--tuttrack-space-sm) var(--tuttrack-space-lg);
  font-weight: 500;
  transition: all var(--tuttrack-transition-fast);
  cursor: pointer;
}

.tuttrack-button-primary:hover {
  background: hsl(var(--tuttrack-primary) / 0.9);
  transform: translateY(-1px);
  box-shadow: var(--tuttrack-shadow-md);
}

.tuttrack-button-secondary {
  background: hsl(var(--tuttrack-bg-secondary));
  color: hsl(var(--tuttrack-text-primary));
  border: 1px solid hsl(var(--tuttrack-border-primary));
  border-radius: var(--tuttrack-radius-md);
  padding: var(--tuttrack-space-sm) var(--tuttrack-space-lg);
  font-weight: 500;
  transition: all var(--tuttrack-transition-fast);
  cursor: pointer;
}

.tuttrack-button-secondary:hover {
  background: hsl(var(--tuttrack-hover));
  border-color: hsl(var(--tuttrack-border-focus));
  transform: translateY(-1px);
}

.tuttrack-status-success {
  background: hsl(var(--tuttrack-success) / 0.1);
  color: hsl(var(--tuttrack-success));
  border: 1px solid hsl(var(--tuttrack-success) / 0.2);
  border-radius: var(--tuttrack-radius-sm);
  padding: var(--tuttrack-space-xs) var(--tuttrack-space-sm);
  font-size: 0.875rem;
  font-weight: 500;
}

.tuttrack-status-warning {
  background: hsl(var(--tuttrack-warning) / 0.1);
  color: hsl(var(--tuttrack-warning));
  border: 1px solid hsl(var(--tuttrack-warning) / 0.2);
  border-radius: var(--tuttrack-radius-sm);
  padding: var(--tuttrack-space-xs) var(--tuttrack-space-sm);
  font-size: 0.875rem;
  font-weight: 500;
}

.tuttrack-status-error {
  background: hsl(var(--tuttrack-error) / 0.1);
  color: hsl(var(--tuttrack-error));
  border: 1px solid hsl(var(--tuttrack-error) / 0.2);
  border-radius: var(--tuttrack-radius-sm);
  padding: var(--tuttrack-space-xs) var(--tuttrack-space-sm);
  font-size: 0.875rem;
  font-weight: 500;
}

.tuttrack-status-info {
  background: hsl(var(--tuttrack-info) / 0.1);
  color: hsl(var(--tuttrack-info));
  border: 1px solid hsl(var(--tuttrack-info) / 0.2);
  border-radius: var(--tuttrack-radius-sm);
  padding: var(--tuttrack-space-xs) var(--tuttrack-space-sm);
  font-size: 0.875rem;
  font-weight: 500;
}

.tuttrack-input {
  background: hsl(var(--tuttrack-bg-primary));
  color: hsl(var(--tuttrack-text-primary));
  border: 1px solid hsl(var(--tuttrack-border-primary));
  border-radius: var(--tuttrack-radius-md);
  padding: var(--tuttrack-space-sm) var(--tuttrack-space-md);
  font-size: 0.875rem;
  transition: all var(--tuttrack-transition-fast);
  width: 100%;
}

.tuttrack-input:focus {
  outline: none;
  border-color: hsl(var(--tuttrack-border-focus));
  box-shadow: 0 0 0 3px hsl(var(--tuttrack-border-focus) / 0.1);
}

.tuttrack-input::-moz-placeholder {
  color: hsl(var(--tuttrack-text-tertiary));
}

.tuttrack-input::placeholder {
  color: hsl(var(--tuttrack-text-tertiary));
}

.tuttrack-scanner-overlay {
  background: hsl(var(--tuttrack-scanner-bg));
  border-radius: var(--tuttrack-radius-xl);
  overflow: hidden;
  position: relative;
  box-shadow: var(--tuttrack-shadow-2xl);
}

.tuttrack-scanner-frame {
  border: 2px solid hsl(var(--tuttrack-scanner-frame));
  border-radius: var(--tuttrack-radius-lg);
  position: relative;
  box-shadow: 0 0 0 9999px hsl(var(--tuttrack-scanner-overlay));
}

.tuttrack-map-container {
  background: hsl(var(--tuttrack-map-bg));
  border-radius: var(--tuttrack-radius-lg);
  overflow: hidden;
  box-shadow: var(--tuttrack-shadow-md);
}

.tuttrack-chart-container {
  background: hsl(var(--tuttrack-bg-elevated));
  border-radius: var(--tuttrack-radius-lg);
  padding: var(--tuttrack-space-lg);
  box-shadow: var(--tuttrack-shadow-sm);
}

/* Responsive Design */
@media (max-width: 640px) {
  .tuttrack-card {
    border-radius: var(--tuttrack-radius-md);
    margin: var(--tuttrack-space-sm);
    padding: var(--tuttrack-space-md);
  }
  
  .tuttrack-button-primary,
  .tuttrack-button-secondary {
    padding: var(--tuttrack-space-md) var(--tuttrack-space-lg);
    font-size: 1rem;
    min-height: 44px;
  }
  
  .tuttrack-input {
    padding: var(--tuttrack-space-sm) var(--tuttrack-space-md);
    font-size: 0.875rem;
    min-height: 44px;
  }
  
  .tuttrack-scanner-overlay {
    border-radius: var(--tuttrack-radius-lg);
  }
  
  .tuttrack-scanner-frame {
    border-radius: var(--tuttrack-radius-md);
  }
  
  .tuttrack-map-container {
    border-radius: var(--tuttrack-radius-md);
  }
  
  .tuttrack-chart-container {
    padding: var(--tuttrack-space-md);
    border-radius: var(--tuttrack-radius-md);
  }
}

@media (min-width: 641px) and (max-width: 1024px) {
  .tuttrack-card {
    border-radius: var(--tuttrack-radius-lg);
    margin: var(--tuttrack-space-md);
    padding: var(--tuttrack-space-lg);
  }
  
  .tuttrack-button-primary,
  .tuttrack-button-secondary {
    padding: var(--tuttrack-space-md) var(--tuttrack-space-xl);
    font-size: 1rem;
    min-height: 48px;
  }
  
  .tuttrack-input {
    padding: var(--tuttrack-space-md) var(--tuttrack-space-lg);
    font-size: 1rem;
    min-height: 48px;
  }
  
  .tuttrack-scanner-overlay {
    border-radius: var(--tuttrack-radius-xl);
  }
  
  .tuttrack-scanner-frame {
    border-radius: var(--tuttrack-radius-lg);
  }
  
  .tuttrack-map-container {
    border-radius: var(--tuttrack-radius-lg);
  }
  
  .tuttrack-chart-container {
    padding: var(--tuttrack-space-lg);
    border-radius: var(--tuttrack-radius-lg);
  }
}

@media (min-width: 1025px) {
  .tuttrack-card {
    border-radius: var(--tuttrack-radius-xl);
    margin: var(--tuttrack-space-lg);
    padding: var(--tuttrack-space-xl);
  }
  
  .tuttrack-card-interactive:hover {
    transform: translateY(-4px);
  }
  
  .tuttrack-button-primary,
  .tuttrack-button-secondary {
    padding: var(--tuttrack-space-lg) var(--tuttrack-space-2xl);
    font-size: 1.125rem;
    min-height: 52px;
  }
  
  .tuttrack-input {
    padding: var(--tuttrack-space-lg) var(--tuttrack-space-xl);
    font-size: 1.125rem;
    min-height: 52px;
  }
  
  .tuttrack-scanner-overlay {
    border-radius: var(--tuttrack-radius-2xl);
  }
  
  .tuttrack-scanner-frame {
    border-radius: var(--tuttrack-radius-xl);
  }
  
  .tuttrack-map-container {
    border-radius: var(--tuttrack-radius-xl);
  }
  
  .tuttrack-chart-container {
    padding: var(--tuttrack-space-xl);
    border-radius: var(--tuttrack-radius-xl);
  }
}

@media (min-width: 1920px) {
  .tuttrack-card {
    border-radius: var(--tuttrack-radius-2xl);
    margin: var(--tuttrack-space-xl);
    padding: var(--tuttrack-space-2xl);
  }
  
  .tuttrack-card-interactive:hover {
    transform: translateY(-6px);
  }
  
  .tuttrack-button-primary,
  .tuttrack-button-secondary {
    padding: var(--tuttrack-space-xl) var(--tuttrack-space-3xl);
    font-size: 1.25rem;
    min-height: 56px;
  }
  
  .tuttrack-input {
    padding: var(--tuttrack-space-xl) var(--tuttrack-space-2xl);
    font-size: 1.25rem;
    min-height: 56px;
  }
}

/* Animation Keyframes */
@keyframes tuttrack-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

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

@keyframes tuttrack-shake {
  0%, 100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-4px);
  }
  75% {
    transform: translateX(4px);
  }
}

@keyframes tuttrack-glow {
  0%, 100% {
    box-shadow: 0 0 5px hsl(var(--tuttrack-primary) / 0.3);
  }
  50% {
    box-shadow: 0 0 20px hsl(var(--tuttrack-primary) / 0.6);
  }
}

.tuttrack-animate-pulse {
  animation: tuttrack-pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.tuttrack-animate-bounce {
  animation: tuttrack-bounce 1s infinite;
}

.tuttrack-animate-shake {
  animation: tuttrack-shake 0.5s ease-in-out;
}

.tuttrack-animate-glow {
  animation: tuttrack-glow 2s ease-in-out infinite;
}

/* Glass Morphism Effects */
.tuttrack-glass {
  background: hsl(var(--tuttrack-bg-glass));
  backdrop-filter: blur(10px);
  border: 1px solid hsl(var(--tuttrack-border-primary) / 0.2);
  box-shadow: var(--tuttrack-shadow-lg);
}

/* Gradient Backgrounds */
.tuttrack-gradient-primary {
  background: var(--tuttrack-gradient-primary);
}

.tuttrack-gradient-success {
  background: var(--tuttrack-gradient-success);
}

.tuttrack-gradient-warning {
  background: var(--tuttrack-gradient-warning);
}

.tuttrack-gradient-error {
  background: var(--tuttrack-gradient-error);
}

/* Focus States for Accessibility */
.tuttrack-focus {
  outline: 2px solid hsl(var(--tuttrack-border-focus));
  outline-offset: 2px;
}

/* Responsive Utility Classes */
.tuttrack-responsive-container {
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  max-width: 80rem;
  padding-left: 16px;
  padding-right: 16px;
}
@media (min-width: 640px) {

  .tuttrack-responsive-container {
    padding-left: 24px;
    padding-right: 24px;
  }
}
@media (min-width: 1024px) {

  .tuttrack-responsive-container {
    padding-left: 32px;
    padding-right: 32px;
  }
}

.tuttrack-responsive-grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 16px;
}

@media (min-width: 640px) {

  .tuttrack-responsive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 1024px) {

  .tuttrack-responsive-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1280px) {

  .tuttrack-responsive-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.tuttrack-responsive-flex {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media (min-width: 640px) {

  .tuttrack-responsive-flex {
    flex-direction: row;
    gap: 24px;
  }
}

.tuttrack-responsive-text {
  font-size: 13px;
  line-height: 18px;
  letter-spacing: 0;
}

@media (min-width: 640px) {

  .tuttrack-responsive-text {
    font-size: 15px;
    line-height: 22px;
    letter-spacing: -0.005em;
  }
}

@media (min-width: 1024px) {

  .tuttrack-responsive-text {
    font-size: 17px;
    line-height: 24px;
    letter-spacing: -0.005em;
  }
}

.tuttrack-responsive-spacing > :not([hidden]) ~ :not([hidden]) {
  --tw-space-y-reverse: 0;
  margin-top: calc(16px * calc(1 - var(--tw-space-y-reverse)));
  margin-bottom: calc(16px * var(--tw-space-y-reverse));
}

@media (min-width: 640px) {

  .tuttrack-responsive-spacing > :not([hidden]) ~ :not([hidden]) {
    --tw-space-y-reverse: 0;
    margin-top: calc(24px * calc(1 - var(--tw-space-y-reverse)));
    margin-bottom: calc(24px * var(--tw-space-y-reverse));
  }
}

@media (min-width: 1024px) {

  .tuttrack-responsive-spacing > :not([hidden]) ~ :not([hidden]) {
    --tw-space-y-reverse: 0;
    margin-top: calc(32px * calc(1 - var(--tw-space-y-reverse)));
    margin-bottom: calc(32px * var(--tw-space-y-reverse));
  }
}

.tuttrack-responsive-padding {
  padding: 16px;
}

@media (min-width: 640px) {

  .tuttrack-responsive-padding {
    padding: 24px;
  }
}

@media (min-width: 1024px) {

  .tuttrack-responsive-padding {
    padding: 32px;
  }
}

.tuttrack-responsive-card {
  border-radius: 16px;
  padding: 16px;
  --tw-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.06);
  --tw-shadow-colored: 0 1px 2px 0 var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

@media (min-width: 640px) {

  .tuttrack-responsive-card {
    border-radius: 20px;
    padding: 24px;
    --tw-shadow: 0 2px 12px -2px rgb(0 0 0 / 0.08), 0 1px 4px 0 rgb(0 0 0 / 0.06);
    --tw-shadow-colored: 0 2px 12px -2px var(--tw-shadow-color), 0 1px 4px 0 var(--tw-shadow-color);
    box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
  }
}

@media (min-width: 1024px) {

  .tuttrack-responsive-card {
    border-radius: 24px;
    padding: 32px;
    --tw-shadow: 0 12px 24px -8px rgb(0 0 0 / 0.18), 0 6px 12px -4px rgb(0 0 0 / 0.12);
    --tw-shadow-colored: 0 12px 24px -8px var(--tw-shadow-color), 0 6px 12px -4px var(--tw-shadow-color);
    box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
  }
}

.tuttrack-responsive-button {
  min-height: 44px;
  padding-left: 16px;
  padding-right: 16px;
  padding-top: 8px;
  padding-bottom: 8px;
  font-size: 13px;
  line-height: 18px;
  letter-spacing: 0;
}

@media (min-width: 640px) {

  .tuttrack-responsive-button {
    min-height: 48px;
    padding-left: 24px;
    padding-right: 24px;
    padding-top: 12px;
    padding-bottom: 12px;
    font-size: 15px;
    line-height: 22px;
    letter-spacing: -0.005em;
  }
}

@media (min-width: 1024px) {

  .tuttrack-responsive-button {
    min-height: 52px;
    padding-left: 32px;
    padding-right: 32px;
    padding-top: 16px;
    padding-bottom: 16px;
    font-size: 17px;
    line-height: 24px;
    letter-spacing: -0.005em;
  }
}

.tuttrack-responsive-input {
  height: 40px;
  padding-left: 12px;
  padding-right: 12px;
  font-size: 13px;
  line-height: 18px;
  letter-spacing: 0;
}

@media (min-width: 640px) {

  .tuttrack-responsive-input {
    height: 44px;
    padding-left: 16px;
    padding-right: 16px;
    font-size: 15px;
    line-height: 22px;
    letter-spacing: -0.005em;
  }
}

@media (min-width: 1024px) {

  .tuttrack-responsive-input {
    height: 48px;
    padding-left: 24px;
    padding-right: 24px;
  }
}

.tuttrack-responsive-modal {
  margin-left: 16px;
  margin-right: 16px;
  width: 100%;
  max-width: 24rem;
}

@media (min-width: 640px) {

  .tuttrack-responsive-modal {
    margin-left: 24px;
    margin-right: 24px;
    max-width: 28rem;
  }
}

@media (min-width: 1024px) {

  .tuttrack-responsive-modal {
    margin-left: 32px;
    margin-right: 32px;
    max-width: 32rem;
  }
}

@media (min-width: 1280px) {

  .tuttrack-responsive-modal {
    max-width: 36rem;
  }
}

.tuttrack-responsive-table {
  display: block;
  overflow-x: auto;
}

@media (min-width: 640px) {

  .tuttrack-responsive-table {
    display: table;
  }
}

.tuttrack-responsive-image {
  height: auto;
  width: 100%;
  max-width: 100%;
}

/* Mobile-specific utilities */
.tuttrack-mobile-only {
  display: block;
}
@media (min-width: 640px) {

  .tuttrack-mobile-only {
    display: none;
  }
}

.tuttrack-tablet-only {
  display: none;
}

@media (min-width: 640px) {

  .tuttrack-tablet-only {
    display: block;
  }
}

@media (min-width: 1024px) {

  .tuttrack-tablet-only {
    display: none;
  }
}

.tuttrack-desktop-only {
  display: none;
}

@media (min-width: 1024px) {

  .tuttrack-desktop-only {
    display: block;
  }
}

.tuttrack-mobile-tablet {
  display: block;
}

@media (min-width: 1024px) {

  .tuttrack-mobile-tablet {
    display: none;
  }
}

.tuttrack-tablet-desktop {
  display: none;
}

@media (min-width: 640px) {

  .tuttrack-tablet-desktop {
    display: block;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .tuttrack-card {
    border-width: 2px;
  }
  
  .tuttrack-button-primary,
  .tuttrack-button-secondary {
    border-width: 2px;
  }
  
  .tuttrack-input {
    border-width: 2px;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  .tuttrack-card,
  .tuttrack-card-interactive,
  .tuttrack-button-primary,
  .tuttrack-button-secondary,
  .tuttrack-input {
    transition: none;
  }
  
  .tuttrack-animate-pulse,
  .tuttrack-animate-bounce,
  .tuttrack-animate-glow {
    animation: none;
  }
}

/**
 * TUTCART LUXURY BLUE DESIGN SYSTEM
 * Official Design Tokens - Single Source of Truth
 * 
 * Philosophy: Calm · Trust · Intelligence · Premium · Institutional · Apple-like
 * Colour is supporting, not decorative.
 * Luxury is created by restraint, spacing, and typography — not colour volume.
 */

:root {
  /* ============================================
     PRIMARY ACCENT - LUXURY BLUE (ONLY ONE)
     ============================================ */
  --accent-light: #2F6FED;   /* calm, confident */
  --accent-dark:  #4C83FF;   /* softened for dark mode */
  
  /* ============================================
     LIGHT THEME
     ============================================ */
  --bg-light:              #F7F8FA;
  --surface-light:         #FFFFFF;
  --surface-2-light:       #F1F5F9;
  
  --text-primary-light:    #0F172A;
  --text-secondary-light:  #334155;
  --text-muted-light:      #64748B;
  
  --border-subtle-light:   #E2E8F0;
  
  --shadow-soft-light:     0 1px 2px rgba(15,23,42,0.05);
  --shadow-card-light:     0 8px 24px rgba(15,23,42,0.06);
  --shadow-popover-light:  0 12px 32px rgba(15,23,42,0.12);
  
  /* ============================================
     DARK THEME (NO pure black)
     ============================================ */
  --bg-dark:              #0B1220;
  --surface-dark:         #0F172A;
  --surface-2-dark:       #111827;
  
  --text-primary-dark:    #E5E7EB;
  --text-secondary-dark:  #CBD5E1;
  --text-muted-dark:      #94A3B8;
  
  --border-subtle-dark:   #1F2937;
  
  --shadow-soft-dark:     0 1px 2px rgba(0,0,0,0.4);
  --shadow-card-dark:     0 8px 24px rgba(0,0,0,0.45);
  --shadow-popover-dark:  0 12px 32px rgba(0,0,0,0.6);
  
  /* ============================================
     SEMANTIC COLOURS (ONLY for meaning)
     ============================================ */
  --success: #16A34A;
  --warning: #D97706;
  --danger:  #DC2626;
  --info:    #0284C7;
  
  /* ============================================
     SPACING SCALE (STRICT)
     ============================================ */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  
  /* ============================================
     RADIUS
     ============================================ */
  --radius-card: 14px;
  --radius-input: 12px;
  --radius-button: 10px;
  --radius-chip: 999px;
  
  /* ============================================
     TYPOGRAPHY
     ============================================ */
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  --font-mono: "SF Mono", "Monaco", "Cascadia Code", "Courier New", monospace;
  
  /* Type Scale */
  --text-xs: 12px;
  --text-sm: 14px;
  --text-base: 16px;
  --text-lg: 18px;
  --text-xl: 20px;
  --text-2xl: 24px;
  --text-3xl: 32px;
  --text-4xl: 36px;
  
  /* ============================================
     LAYOUT
     ============================================ */
  --navbar-height: 56px;
  --sidebar-width: 256px;
  --sidebar-collapsed-width: 64px;
}

/* ============================================
   LIGHT THEME APPLICATION
   ============================================ */
.light,
:root:not(.dark) {
  --bg: var(--bg-light);
  --surface: var(--surface-light);
  --surface-2: var(--surface-2-light);
  
  --text-primary: var(--text-primary-light);
  --text-secondary: var(--text-secondary-light);
  --text-muted: var(--text-muted-light);
  
  --border-subtle: var(--border-subtle-light);
  
  --shadow-soft: var(--shadow-soft-light);
  --shadow-card: var(--shadow-card-light);
  --shadow-popover: var(--shadow-popover-light);
  
  --accent: var(--accent-light);
  
  /* Tailwind compatibility */
  --background: 210 20% 98%;
  --foreground: 210 20% 10%;
  --card: 0 0% 100%;
  --card-foreground: 210 20% 10%;
  --primary: 221 83% 53%;
  --primary-foreground: 0 0% 100%;
  --muted: 210 20% 96%;
  --muted-foreground: 210 10% 45%;
  --border: 210 20% 92%;
  --ring: 221 83% 53%;
}

/* ============================================
   DARK THEME APPLICATION
   ============================================ */
.dark {
  --bg: var(--bg-dark);
  --surface: var(--surface-dark);
  --surface-2: var(--surface-2-dark);
  
  --text-primary: var(--text-primary-dark);
  --text-secondary: var(--text-secondary-dark);
  --text-muted: var(--text-muted-dark);
  
  --border-subtle: var(--border-subtle-dark);
  
  --shadow-soft: var(--shadow-soft-dark);
  --shadow-card: var(--shadow-card-dark);
  --shadow-popover: var(--shadow-popover-dark);
  
  --accent: var(--accent-dark);
  
  /* Tailwind compatibility */
  --background: 11 18 32;
  --foreground: 229 231 235;
  --card: 15 23 42;
  --card-foreground: 229 231 235;
  --primary: 76 131 255;
  --primary-foreground: 255 255 255;
  --muted: 17 24 39;
  --muted-foreground: 148 163 184;
  --border: 31 41 55;
  --ring: 76 131 255;
}

/* ============================================
   TYPOGRAPHY UTILITIES
   ============================================ */
.text-display {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.text-body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.5;
}

.text-supporting {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text-muted);
  line-height: 1.6;
}

.text-tabular {
  font-variant-numeric: tabular-nums;
}

/* ============================================
   SURFACE UTILITIES
   ============================================ */
.surface-calm {
  background: var(--surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-subtle);
}

.surface-flat {
  background: var(--surface);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-subtle);
}

/* ============================================
   FOCUS RING (Blue)
   ============================================ */
.focus-ring-blue {
  outline: none;
  transition: box-shadow 0.15s ease;
}

.focus-ring-blue:focus-visible {
  box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.2);
}

.dark .focus-ring-blue:focus-visible {
  box-shadow: 0 0 0 3px rgba(76, 131, 255, 0.3);
}

/* ============================================
   ACTIVE STATE (Blue accent bar + soft bg)
   ============================================ */
.sidebar-item-active {
  position: relative;
  background: rgba(47, 111, 237, 0.08);
  font-weight: 500;
}

.sidebar-item-active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--accent);
}

.dark .sidebar-item-active {
  background: rgba(76, 131, 255, 0.12);
}

/* ============================================
   GLOBAL STYLES
   ============================================ */
body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
}

/* Theme transitions handled by next-themes with disableTransitionOnChange */
/* Removed global * transition to prevent pointer-events blocking bug */

/**
 * Apple-Inspired Design System
 * Consistent spacing, typography, colors, and shadows
 * Based on Apple Human Interface Guidelines
 */

:root {
  /* ============================================
     SPACING SYSTEM - 4pt/8pt Grid
     ============================================ */
  --spacing-0: 0;
  --spacing-1: 0.25rem;   /* 4px  - Tight elements */
  --spacing-2: 0.5rem;    /* 8px  - Related items */
  --spacing-3: 0.75rem;   /* 12px - Default gap */
  --spacing-4: 1rem;      /* 16px - Section spacing */
  --spacing-5: 1.25rem;   /* 20px - Medium sections */
  --spacing-6: 1.5rem;    /* 24px - Major sections */
  --spacing-8: 2rem;      /* 32px - Page sections */
  --spacing-10: 2.5rem;   /* 40px - Large sections */
  --spacing-12: 3rem;     /* 48px - Major dividers */
  --spacing-16: 4rem;     /* 64px - Hero sections */

  /* ============================================
     TYPOGRAPHY SCALE
     ============================================ */
  /* Display - Hero text */
  --font-display-xl: 3.5rem;    /* 56px */
  --font-display-lg: 2.5rem;    /* 40px */
  --font-display-md: 2rem;      /* 32px */
  --font-display-sm: 1.75rem;   /* 28px */
  
  /* Heading - Section titles */
  --font-heading-xl: 1.875rem;  /* 30px */
  --font-heading-lg: 1.5rem;    /* 24px */
  --font-heading-md: 1.25rem;   /* 20px */
  --font-heading-sm: 1.125rem;  /* 18px */
  
  /* Body - Content text */
  --font-body-xl: 1.125rem;     /* 18px */
  --font-body-lg: 1rem;         /* 16px */
  --font-body-md: 0.875rem;     /* 14px */
  --font-body-sm: 0.75rem;      /* 12px */
  --font-body-xs: 0.6875rem;    /* 11px */
  
  /* Label - UI labels */
  --font-label-lg: 0.875rem;    /* 14px */
  --font-label-md: 0.75rem;     /* 12px */
  --font-label-sm: 0.6875rem;   /* 11px */

  /* Line heights */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* ============================================
     BORDER RADIUS
     ============================================ */
  --radius-xs: 0.25rem;    /* 4px  - Tiny elements */
  --radius-sm: 0.375rem;   /* 6px  - Buttons, badges */
  --radius-md: 0.5rem;     /* 8px  - Inputs, small cards */
  --radius-lg: 0.75rem;    /* 12px - Cards, modals */
  --radius-xl: 1rem;       /* 16px - Large cards */
  --radius-2xl: 1.5rem;    /* 24px - Hero sections */
  --radius-full: 9999px;   /* Full - Pills, avatars */

  /* ============================================
     ELEVATION (SHADOWS)
     ============================================ */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.15);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);

  /* ============================================
     SEMANTIC COLORS (Apple-style)
     ============================================ */
  --color-success: #34C759;
  --color-success-bg: rgba(52, 199, 89, 0.1);
  --color-warning: #FF9500;
  --color-warning-bg: rgba(255, 149, 0, 0.1);
  --color-error: #FF3B30;
  --color-error-bg: rgba(255, 59, 48, 0.1);
  --color-info: #007AFF;
  --color-info-bg: rgba(0, 122, 255, 0.1);

  /* ============================================
     ANIMATION TIMING
     ============================================ */
  --duration-instant: 0ms;
  --duration-fast: 150ms;      /* Micro-interactions */
  --duration-normal: 250ms;    /* Standard transitions */
  --duration-slow: 350ms;      /* Complex animations */
  --duration-slower: 500ms;    /* Page transitions */

  /* Easing functions */
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ============================================
   Z-INDEX SCALE
   ============================================ */
  --z-base: 0;
  --z-dropdown: 1000;
  --z-sticky: 1100;
  --z-fixed: 1200;
  --z-modal-backdrop: 1300;
  --z-modal: 1400;
  --z-popover: 1500;
  --z-tooltip: 1600;
  --z-notification: 1700;
  --z-max: 9999;

  /* ============================================
     MOBILE OPTIMIZATIONS
     ============================================ */
  /* Safe area insets for notched devices */
  --safe-area-inset-top: env(safe-area-inset-top);
  --safe-area-inset-right: env(safe-area-inset-right);
  --safe-area-inset-bottom: env(safe-area-inset-bottom);
  --safe-area-inset-left: env(safe-area-inset-left);

  /* Touch target minimum (Apple HIG) */
  --touch-target-min: 44px;
}

/* ============================================
   DARK MODE ADJUSTMENTS
   ============================================ */
.dark {
  /* Darker shadows for dark mode */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4), 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5), 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6), 0 10px 10px rgba(0, 0, 0, 0.4);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.7);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Spacing utilities */
.gap-apple-xs { gap: var(--spacing-1); }
.gap-apple-sm { gap: var(--spacing-2); }
.gap-apple-md { gap: var(--spacing-3); }
.gap-apple-lg { gap: var(--spacing-4); }
.gap-apple-xl { gap: var(--spacing-6); }
.gap-apple-2xl { gap: var(--spacing-8); }

/* Typography utilities */
.text-display-xl { font-size: var(--font-display-xl); line-height: var(--leading-tight); }
.text-display-lg { font-size: var(--font-display-lg); line-height: var(--leading-tight); }
.text-display-md { font-size: var(--font-display-md); line-height: var(--leading-snug); }

.text-heading-xl { font-size: var(--font-heading-xl); line-height: var(--leading-snug); }
.text-heading-lg { font-size: var(--font-heading-lg); line-height: var(--leading-snug); }
.text-heading-md { font-size: var(--font-heading-md); line-height: var(--leading-normal); }
.text-heading-sm { font-size: var(--font-heading-sm); line-height: var(--leading-normal); }

.text-body-xl { font-size: var(--font-body-xl); line-height: var(--leading-normal); }
.text-body-lg { font-size: var(--font-body-lg); line-height: var(--leading-normal); }
.text-body-md { font-size: var(--font-body-md); line-height: var(--leading-normal); }
.text-body-sm { font-size: var(--font-body-sm); line-height: var(--leading-relaxed); }

/* Micro-interaction utilities */
.interactive {
  transition: all var(--duration-fast) var(--ease-out);
  cursor: pointer;
}

.interactive:hover {
  transform: translateY(-1px);
}

.interactive:active {
  transform: scale(0.98);
  filter: brightness(0.95);
}

.button-press {
  transition: transform var(--duration-fast) var(--ease-out);
}

.button-press:active {
  transform: scale(0.95);
}

/* Card hover effects */
.card-hover {
  transition: all var(--duration-normal) var(--ease-out);
}

.card-hover:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* Focus ring (Apple-style) */
.focus-ring-apple {
  outline: none;
  transition: box-shadow var(--duration-fast) var(--ease-out);
}

.focus-ring-apple:focus-visible {
  box-shadow: 0 0 0 3px var(--color-info-bg), 0 0 0 4px var(--color-info);
}

/* Loading spinner */
@keyframes spin-apple {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.spinner-apple {
  animation: spin-apple var(--duration-slower) linear infinite;
}

/* Success pulse */
@keyframes pulse-success {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.05);
  }
}

.pulse-success {
  animation: pulse-success 0.6s var(--ease-spring);
}

/* Slide in animations */
@keyframes slide-in-bottom {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-slide-in-bottom {
  animation: slide-in-bottom var(--duration-normal) var(--ease-out);
}

/* Fade in */
@keyframes fade-in-apple {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.animate-fade-in-apple {
  animation: fade-in-apple var(--duration-normal) var(--ease-out);
}

/* Scale in (spring) */
@keyframes scale-in-spring {
  0% {
    opacity: 0;
    transform: scale(0.9);
  }
  50% {
    transform: scale(1.02);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-scale-in-spring {
  animation: scale-in-spring var(--duration-slow) var(--ease-spring);
}

/* ============================================
   MOBILE UTILITIES
   ============================================ */

/* Safe area padding */
.safe-area-inset-top {
  padding-top: var(--safe-area-inset-top);
}

.safe-area-inset-bottom {
  padding-bottom: var(--safe-area-inset-bottom);
}

.safe-area-inset-left {
  padding-left: var(--safe-area-inset-left);
}

.safe-area-inset-right {
  padding-right: var(--safe-area-inset-right);
}

/* Touch targets */
.touch-target {
  min-width: var(--touch-target-min);
  min-height: var(--touch-target-min);
}

/* Mobile-specific utilities */
@media (max-width: 768px) {
  /* Larger text for readability */
  .mobile-text-lg {
    font-size: var(--font-body-lg);
  }
  
  /* Increased spacing for touch */
  .mobile-gap-lg {
    gap: var(--spacing-4);
  }
  
  /* Full-width buttons on mobile */
  .mobile-full-width {
    width: 100%;
  }
}

/* Tablet breakpoint */
@media (min-width: 768px) and (max-width: 1024px) {
  .tablet-hidden {
    display: none;
  }
}

/* Desktop breakpoint */
@media (min-width: 1024px) {
  .desktop-only {
    display: block;
  }
}

/* Apple-Grade Design System Tokens */

/* ============================================
   TYPOGRAPHY SYSTEM
   ============================================ */

/* Display - For hero sections, large headings */
.text-display {
  font-size: 3.75rem; /* 60px */
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
}

@media (max-width: 768px) {
  .text-display {
    font-size: 2.5rem; /* 40px */
  }
}

/* Headline - For page titles, major sections */
.text-headline {
  font-size: 2.25rem; /* 36px */
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-weight: 700;
}

@media (max-width: 768px) {
  .text-headline {
    font-size: 1.875rem; /* 30px */
  }
}

/* Title - For card headers, section titles */
.text-title {
  font-size: 1.5rem; /* 24px */
  line-height: 1.3;
  letter-spacing: -0.01em;
  font-weight: 600;
}

@media (max-width: 768px) {
  .text-title {
    font-size: 1.25rem; /* 20px */
  }
}

/* Subtitle - For secondary headings */
.text-subtitle {
  font-size: 1.125rem; /* 18px */
  line-height: 1.4;
  letter-spacing: -0.005em;
  font-weight: 600;
}

/* Body - For primary content */
.text-body {
  font-size: 1rem; /* 16px */
  line-height: 1.5;
  letter-spacing: -0.005em;
  font-weight: 400;
}

/* Body Small - For secondary content */
.text-body-sm {
  font-size: 0.875rem; /* 14px */
  line-height: 1.5;
  letter-spacing: 0em;
  font-weight: 400;
}

/* Caption - For labels, metadata */
.text-caption {
  font-size: 0.75rem; /* 12px */
  line-height: 1.4;
  letter-spacing: 0em;
  font-weight: 500;
}

/* Micro - For tiny labels, badges */
.text-micro {
  font-size: 0.625rem; /* 10px */
  line-height: 1.3;
  letter-spacing: 0.01em;
  font-weight: 500;
  text-transform: uppercase;
}

/* Tabular Numbers - For aligned numbers */
.text-tabular {
  font-variant-numeric: tabular-nums;
}

/* ============================================
   ICON SYSTEM
   ============================================ */

.icon-xs {
  width: 0.875rem; /* 14px */
  height: 0.875rem;
}

.icon-sm {
  width: 1rem; /* 16px */
  height: 1rem;
}

.icon-md {
  width: 1.125rem; /* 18px */
  height: 1.125rem;
}

.icon-base {
  width: 1.25rem; /* 20px */
  height: 1.25rem;
}

.icon-lg {
  width: 1.375rem; /* 22px */
  height: 1.375rem;
}

.icon-xl {
  width: 1.5rem; /* 24px */
  height: 1.5rem;
}

/* ============================================
   SHADOW SYSTEM (Apple-style elevation)
   ============================================ */

/* Elevation 0 - No shadow */
.shadow-elevation-0 {
  box-shadow: none;
}

/* Elevation 1 - Subtle lift (cards, buttons) */
.shadow-elevation-1 {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.04),
    0 1px 2px rgba(0, 0, 0, 0.06);
}

.dark .shadow-elevation-1 {
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.06),
    0 1px 2px rgba(0, 0, 0, 0.4);
}

/* Elevation 2 - Medium lift (dropdowns, popovers) */
.shadow-elevation-2 {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.04),
    0 2px 4px rgba(0, 0, 0, 0.08),
    0 4px 8px rgba(0, 0, 0, 0.04);
}

.dark .shadow-elevation-2 {
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 2px 4px rgba(0, 0, 0, 0.5),
    0 4px 8px rgba(0, 0, 0, 0.3);
}

/* Elevation 3 - High lift (modals, drawers) */
.shadow-elevation-3 {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.04),
    0 4px 8px rgba(0, 0, 0, 0.08),
    0 8px 16px rgba(0, 0, 0, 0.08),
    0 16px 32px rgba(0, 0, 0, 0.04);
}

.dark .shadow-elevation-3 {
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.1),
    0 4px 8px rgba(0, 0, 0, 0.6),
    0 8px 16px rgba(0, 0, 0, 0.5),
    0 16px 32px rgba(0, 0, 0, 0.3);
}

/* Elevation 4 - Maximum lift (overlays) */
.shadow-elevation-4 {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.04),
    0 8px 16px rgba(0, 0, 0, 0.12),
    0 16px 32px rgba(0, 0, 0, 0.08),
    0 32px 64px rgba(0, 0, 0, 0.08);
}

.dark .shadow-elevation-4 {
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.12),
    0 8px 16px rgba(0, 0, 0, 0.7),
    0 16px 32px rgba(0, 0, 0, 0.6),
    0 32px 64px rgba(0, 0, 0, 0.4);
}

/* ============================================
   SPACING SYSTEM (4px grid)
   ============================================ */

/* Use Tailwind's default spacing which follows 4px grid:
   space-1 = 4px
   space-2 = 8px
   space-3 = 12px
   space-4 = 16px
   space-5 = 20px
   space-6 = 24px
   space-8 = 32px
   space-10 = 40px
   space-12 = 48px
   space-16 = 64px
*/

/* ============================================
   BORDER RADIUS SYSTEM
   ============================================ */

.radius-sm {
  border-radius: 0.375rem; /* 6px */
}

.radius-md {
  border-radius: 0.5rem; /* 8px */
}

.radius-lg {
  border-radius: 0.75rem; /* 12px */
}

.radius-xl {
  border-radius: 1rem; /* 16px */
}

.radius-2xl {
  border-radius: 1.25rem; /* 20px */
}

/* ============================================
   TRANSITION SYSTEM
   ============================================ */

.transition-apple {
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 200ms;
}

.transition-apple-slow {
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 300ms;
}

/* ============================================
   FOCUS RING SYSTEM
   ============================================ */

.focus-ring-blue {
  outline: none;
}

.focus-ring-blue:focus-visible {
  outline: 2px solid rgba(59, 130, 246, 0.5);
  outline-offset: 2px;
}

.dark .focus-ring-blue:focus-visible {
  outline: 2px solid rgba(96, 165, 250, 0.5);
}

/* ============================================
   SURFACE COLORS
   ============================================ */

:root {
  --surface: #ffffff;
  --surface-1: #fafafa;
  --surface-2: #f5f5f5;
  --surface-3: #e5e5e5;
  
  --border-subtle: #e5e7eb;
  --border-default: #d1d5db;
  --border-strong: #9ca3af;
  
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  
  --navbar-height: 64px;
  --sidebar-width: 256px;
  --sidebar-collapsed-width: 80px;
}

.dark {
  --surface: #0a0a0a;
  --surface-1: #141414;
  --surface-2: #1a1a1a;
  --surface-3: #262626;
  
  --border-subtle: #262626;
  --border-default: #404040;
  --border-strong: #525252;
  
  --text-primary: #fafafa;
  --text-secondary: #d4d4d4;
  --text-muted: #a3a3a3;
  
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

.dark .glass {
  background: rgba(10, 10, 10, 0.8);
}

/* Gradient text */
.gradient-text-blue {
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.dark .gradient-text-blue {
  background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Active state for sidebar items */
.sidebar-item-active {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
  border-left: 2px solid #3b82f6;
}

.dark .sidebar-item-active {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(139, 92, 246, 0.15) 100%);
  border-left: 2px solid #60a5fa;
}

/* ============================================
   PHASE 1: CRITICAL TYPOGRAPHY FIXES
   Apple-Grade Letter Spacing & Hierarchy
   ============================================ */

/* Display Text - Large headings (48px+) */
.text-display {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;  /* Apple's tight spacing for large text */
  font-feature-settings: 'kern' on, 'liga' on;
}

/* Headline - Page titles (32-40px) */
.text-headline {
  font-size: clamp(2rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;  /* Slightly tighter for readability */
  font-feature-settings: 'kern' on, 'liga' on;
}

/* Title - Section headings (24-28px) */
.text-title {
  font-size: clamp(1.5rem, 2vw, 1.75rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  font-feature-settings: 'kern' on, 'liga' on;
}

/* Body - Regular text (16px) */
.text-body {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: -0.005em;  /* Subtle tightening */
  font-feature-settings: 'kern' on, 'liga' on;
}

/* Body Small - Secondary text (14px) */
.text-body-sm {
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 0em;
  font-feature-settings: 'kern' on, 'liga' on;
}

/* Caption - Labels, metadata (12px) */
.text-caption {
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.01em;  /* Slightly wider for small text */
  text-transform: uppercase;
  font-feature-settings: 'kern' on, 'liga' on;
}

/* Micro - Tiny text (10px) */
.text-micro {
  font-size: 0.625rem;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-feature-settings: 'kern' on, 'liga' on;
}

/* Numeric - Tabular numerals for stats, prices, metrics */
.text-numeric {
  font-variant-numeric: tabular-nums lining-nums;
  font-feature-settings: 'tnum' on, 'lnum' on;
  letter-spacing: -0.01em;
}

/* Gradient Text - Blue accent */
.gradient-text-blue {
  background: linear-gradient(135deg, 
    rgb(59, 130, 246) 0%, 
    rgb(147, 51, 234) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
}

/* Dark mode gradient adjustment */
.dark .gradient-text-blue {
  background: linear-gradient(135deg, 
    rgb(96, 165, 250) 0%, 
    rgb(192, 132, 252) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ============================================
   PHASE 1: ELEVATION SYSTEM (SHADOWS)
   Apple-Grade Depth & Layering
   ============================================ */

/* Elevation 0 - Flat, no shadow */
.shadow-elevation-0 {
  box-shadow: none;
}

/* Elevation 1 - Subtle lift (cards at rest) */
.shadow-elevation-1 {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.03),
    0 1px 2px rgba(0, 0, 0, 0.05),
    0 2px 4px rgba(0, 0, 0, 0.04);
}

.dark .shadow-elevation-1 {
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.05),
    0 1px 2px rgba(0, 0, 0, 0.3),
    0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Elevation 2 - Medium lift (cards on hover, modals) */
.shadow-elevation-2 {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.04),
    0 2px 4px rgba(0, 0, 0, 0.06),
    0 4px 8px rgba(0, 0, 0, 0.08),
    0 8px 16px rgba(0, 0, 0, 0.06);
}

.dark .shadow-elevation-2 {
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 2px 4px rgba(0, 0, 0, 0.4),
    0 4px 8px rgba(0, 0, 0, 0.3),
    0 8px 16px rgba(0, 0, 0, 0.2);
}

/* Elevation 3 - High lift (dropdowns, popovers) */
.shadow-elevation-3 {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.05),
    0 4px 8px rgba(0, 0, 0, 0.08),
    0 8px 16px rgba(0, 0, 0, 0.1),
    0 16px 32px rgba(0, 0, 0, 0.08);
}

.dark .shadow-elevation-3 {
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.1),
    0 4px 8px rgba(0, 0, 0, 0.5),
    0 8px 16px rgba(0, 0, 0, 0.4),
    0 16px 32px rgba(0, 0, 0, 0.3);
}

/* Elevation 4 - Maximum lift (dialogs, sheets) */
.shadow-elevation-4 {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.06),
    0 8px 16px rgba(0, 0, 0, 0.1),
    0 16px 32px rgba(0, 0, 0, 0.12),
    0 32px 64px rgba(0, 0, 0, 0.1);
}

.dark .shadow-elevation-4 {
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.12),
    0 8px 16px rgba(0, 0, 0, 0.6),
    0 16px 32px rgba(0, 0, 0, 0.5),
    0 32px 64px rgba(0, 0, 0, 0.4);
}

/* NOTE: premium-card-universal, premium-hover-lift, and premium-card-interactive
   are now defined in globals.css to avoid duplication and conflicts */

/* ============================================
   PHASE 2: PREMIUM POLISH & MICRO-INTERACTIONS
   Apple-Grade Hover States & Transitions
   ============================================ */

/* Premium Button - Enhanced with spring physics */
.premium-button {
  transition-property: 
    all;
  transition-timing-function: 
    cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 
    200ms;
  transition-timing-function: 
    cubic-bezier(0, 0, 0.2, 1);
  animation-duration: 
    200ms;
  animation-timing-function: 
    cubic-bezier(0, 0, 0.2, 1);
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.03),
    0 1px 2px rgba(0, 0, 0, 0.05),
    0 2px 4px rgba(0, 0, 0, 0.04);
}

.dark .premium-button {
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.05),
    0 1px 2px rgba(0, 0, 0, 0.3),
    0 2px 4px rgba(0, 0, 0, 0.2);
}

.premium-button:hover {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.04),
    0 2px 4px rgba(0, 0, 0, 0.06),
    0 4px 8px rgba(0, 0, 0, 0.08),
    0 8px 16px rgba(0, 0, 0, 0.06);
  transform: translateY(-1px);
}

.premium-button:active {
  box-shadow: none;
  transform: translateY(0);
}

/* Premium Card Hover Lift - Refined */
.premium-hover-lift {
  transition-property: 
    all;
  transition-timing-function: 
    cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 
    300ms;
  transition-timing-function: 
    cubic-bezier(0, 0, 0.2, 1);
  animation-duration: 
    300ms;
  animation-timing-function: 
    cubic-bezier(0, 0, 0.2, 1);
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.03),
    0 1px 2px rgba(0, 0, 0, 0.05),
    0 2px 4px rgba(0, 0, 0, 0.04);
}

.dark .premium-hover-lift {
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.05),
    0 1px 2px rgba(0, 0, 0, 0.3),
    0 2px 4px rgba(0, 0, 0, 0.2);
}

.premium-hover-lift:hover {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.05),
    0 4px 8px rgba(0, 0, 0, 0.08),
    0 8px 16px rgba(0, 0, 0, 0.1),
    0 16px 32px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.premium-hover-lift:active {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.03),
    0 1px 2px rgba(0, 0, 0, 0.05),
    0 2px 4px rgba(0, 0, 0, 0.04);
  transform: translateY(0);
}

/* Premium Card Interactive - Clickable cards */
/* NOTE: Use premium-card-universal and premium-hover-lift classes directly in HTML */
/* This class adds cursor-pointer for interactive cards */
.premium-card-interactive {
  cursor: 
    pointer;
  border-radius: 
    24px;
}

/* Smooth Focus Ring - Apple-style */
.premium-focus-ring {
  transition-property: 
    all;
  transition-timing-function: 
    cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 
    200ms;
  animation-duration: 
    200ms;
  outline: 2px solid transparent;
  outline-offset: 2px;
}

.premium-focus-ring:focus-visible {
  outline: 2px solid rgb(59, 130, 246);
  outline-offset: 2px;
  box-shadow: 
    0 0 0 4px rgba(59, 130, 246, 0.1),
    0 0 0 1px rgba(59, 130, 246, 0.2);
}

.dark .premium-focus-ring:focus-visible {
  outline: 2px solid rgb(96, 165, 250);
  box-shadow: 
    0 0 0 4px rgba(96, 165, 250, 0.15),
    0 0 0 1px rgba(96, 165, 250, 0.3);
}

/* Icon Hover Scale - Subtle feedback */
.icon-hover-scale {
  transition-property: 
    transform;
  transition-timing-function: 
    cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 
    200ms;
  transition-timing-function: 
    cubic-bezier(0, 0, 0.2, 1);
  animation-duration: 
    200ms;
  animation-timing-function: 
    cubic-bezier(0, 0, 0.2, 1);
}

.icon-hover-scale:hover {
  transform: scale(1.1);
}

/* Badge Pulse - For live indicators */
.badge-pulse {
  animation: badge-pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes badge-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* Gradient Border Hover - Premium effect */
.gradient-border-hover {
  position: relative;
  transition-property: 
    all;
  transition-timing-function: 
    cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 
    300ms;
  transition-timing-function: 
    cubic-bezier(0, 0, 0.2, 1);
  animation-duration: 
    300ms;
  animation-timing-function: 
    cubic-bezier(0, 0, 0.2, 1);
}

.gradient-border-hover::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, 
    rgba(59, 130, 246, 0.3),
    rgba(147, 51, 234, 0.3)
  );
  -webkit-mask: 
    linear-gradient(#fff 0 0) content-box, 
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 300ms ease-out;
}

.gradient-border-hover:hover::before {
  opacity: 1;
}

/* Shimmer Effect - Loading state */
.shimmer {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.05) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

.dark .shimmer {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.03) 50%,
    rgba(255, 255, 255, 0) 100%
  );
}

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

/* Stagger Animation - For lists */
.stagger-fade-in {
  animation: fade-in 0.4s ease-out forwards;
  opacity: 0;
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Apply stagger delay via inline styles */
.stagger-fade-in:nth-child(1) { animation-delay: 0ms; }
.stagger-fade-in:nth-child(2) { animation-delay: 75ms; }
.stagger-fade-in:nth-child(3) { animation-delay: 150ms; }
.stagger-fade-in:nth-child(4) { animation-delay: 225ms; }
.stagger-fade-in:nth-child(5) { animation-delay: 300ms; }
.stagger-fade-in:nth-child(6) { animation-delay: 375ms; }

/* Glass Morphism - Enhanced */
.glass-premium {
  --tw-backdrop-blur: 
    blur(24px);
  backdrop-filter: 
    var(--tw-backdrop-blur) var(--tw-backdrop-brightness) var(--tw-backdrop-contrast) var(--tw-backdrop-grayscale) var(--tw-backdrop-hue-rotate) var(--tw-backdrop-invert) var(--tw-backdrop-opacity) var(--tw-backdrop-saturate) var(--tw-backdrop-sepia);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 
    0 4px 24px -2px rgba(0, 0, 0, 0.08),
    0 0 0 1px rgba(255, 255, 255, 0.1);
}

.dark .glass-premium {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 
    0 4px 24px -2px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.05);
}

/* Smooth Scroll - Apple-style momentum */
.smooth-scroll {
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

/* Premium Input Focus */
.premium-input {
  transition-property: 
    all;
  transition-timing-function: 
    cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 
    200ms;
  animation-duration: 
    200ms;
}

.premium-input:focus {
  --tw-ring-offset-shadow: 
    var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);
  --tw-ring-shadow: 
    var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color);
  box-shadow: 
    var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow, 0 0 #0000);
  --tw-ring-opacity: 
    1;
  --tw-ring-color: 
    rgb(59 130 246 / var(--tw-ring-opacity, 1));
  --tw-ring-offset-width: 
    2px;
  --tw-border-opacity: 
    1;
  border-color: 
    rgb(59 130 246 / var(--tw-border-opacity, 1));
}

.dark .premium-input:focus {
  --tw-ring-opacity: 
    1;
  --tw-ring-color: 
    rgb(96 165 250 / var(--tw-ring-opacity, 1));
  --tw-ring-offset-color: 
    #0f172a;
  --tw-border-opacity: 
    1;
  border-color: 
    rgb(96 165 250 / var(--tw-border-opacity, 1));
}

/* Tooltip - Apple-style */
.premium-tooltip {
  border-radius: 
    16px;
  padding-left: 
    12px;
  padding-right: 
    12px;
  padding-top: 
    8px;
  padding-bottom: 
    8px;
  --tw-bg-opacity: 
    1;
  background-color: 
    rgb(15 23 42 / var(--tw-bg-opacity, 1));
  font-size: 
    13px;
  line-height: 
    18px;
  letter-spacing: 
    0;
  --tw-text-opacity: 
    1;
  color: 
    rgb(255 255 255 / var(--tw-text-opacity, 1));
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.05),
    0 4px 8px rgba(0, 0, 0, 0.08),
    0 8px 16px rgba(0, 0, 0, 0.1),
    0 16px 32px rgba(0, 0, 0, 0.08);
  animation: tooltip-in 200ms ease-out;
}

@keyframes tooltip-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dark .premium-tooltip {
  border-width: 
    1px;
  --tw-border-opacity: 
    1;
  border-color: 
    rgb(51 65 85 / var(--tw-border-opacity, 1));
  --tw-bg-opacity: 
    1;
  background-color: 
    rgb(30 41 59 / var(--tw-bg-opacity, 1));
}

/* Status Dot - Live indicator */
.status-dot-live {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgb(34, 197, 94);
}

.status-dot-live::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: rgb(34, 197, 94);
  animation: ping 2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
  75%, 100% {
    transform: scale(2);
    opacity: 0;
  }
}

/* Skeleton Loading - Premium */
.skeleton-premium {
  --tw-bg-opacity: 
    1;
  background-color: 
    rgb(226 232 240 / var(--tw-bg-opacity, 1));
}
.skeleton-premium:is(.dark *) {
  --tw-bg-opacity: 
    1;
  background-color: 
    rgb(30 41 59 / var(--tw-bg-opacity, 1));
}
.skeleton-premium {
  border-radius: 
    16px;
  animation: skeleton-pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

/* Responsive Touch Targets - WCAG AAA */
@media (hover: none) and (pointer: coarse) {
  .touch-target {
    min-height: 44px;
    min-width: 44px;
  }
}

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

/* ============================================
   PHASE 3: RESPONSIVE POLISH & MOBILE OPTIMIZATIONS
   Apple-Grade Mobile Experience
   ============================================ */

/* Mobile-First Touch Targets - WCAG AAA */
@media (hover: none) and (pointer: coarse) {
  /* Ensure all interactive elements are at least 44×44px */
  button,
  a,
  input,
  select,
  textarea,
  [role="button"],
  [role="link"] {
    min-height: 44px;
    min-width: 44px;
  }

  /* Increase padding for better touch experience */
  .premium-button {
    padding: 12px 24px;
  }

  /* Larger tap targets for cards */
  .premium-card-interactive {
    padding: 16px;
  }
}

/* Tablet Optimizations (768px - 1024px) */
@media (min-width: 768px) and (max-width: 1024px) {
  /* Adjust grid for tablets */
  .grid-cols-1.sm\:grid-cols-2.lg\:grid-cols-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* Reduce padding on tablets */
  .px-6.md\:px-8.lg\:px-12 {
    padding-left: 2rem;
    padding-right: 2rem;
  }

  /* Optimize card spacing */
  .gap-6 {
    gap: 1rem;
  }
}

/* Mobile Optimizations (< 768px) */
@media (max-width: 767px) {
  /* Stack cards vertically */
  .grid {
    grid-template-columns: 1fr;
  }

  /* Reduce typography scale on mobile */
  .text-headline {
    font-size: clamp(1.5rem, 4vw, 2rem);
  }

  .text-title {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
  }

  /* Reduce padding on mobile */
  .p-6 {
    padding: 1rem;
  }

  .p-8 {
    padding: 1.5rem;
  }

  /* Optimize spacing */
  .space-y-8 > * + * {
    margin-top: 1.5rem;
  }

  .gap-6 {
    gap: 1rem;
  }

  /* Mobile-friendly cards */
  .premium-card-universal {
    border-radius: 12px; /* Slightly smaller radius on mobile */
  }

  /* Hide non-essential elements on small screens */
  .hidden-mobile {
    display: none;
  }
}

/* Small Mobile (< 375px) */
@media (max-width: 374px) {
  /* Further reduce typography */
  .text-headline {
    font-size: 1.25rem;
  }

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

  /* Minimal padding */
  .p-6 {
    padding: 0.75rem;
  }

  /* Compact spacing */
  .space-y-8 > * + * {
    margin-top: 1rem;
  }
}

/* Landscape Mobile Optimizations */
@media (max-height: 500px) and (orientation: landscape) {
  /* Reduce vertical spacing in landscape */
  .space-y-8 > * + * {
    margin-top: 1rem;
  }

  /* Compact padding */
  .pt-20 {
    padding-top: 4rem;
  }

  .pb-12 {
    padding-bottom: 2rem;
  }
}

/* High DPI Displays (Retina) */
@media (min-resolution: 192dpi) {
  /* Sharper borders on retina */
  .premium-card-universal {
    border-width: 0.5px;
  }

  /* Optimize shadows for retina */
  .shadow-elevation-1 {
    box-shadow: 
      0 0 0 0.5px rgba(0, 0, 0, 0.03),
      0 1px 2px rgba(0, 0, 0, 0.05),
      0 2px 4px rgba(0, 0, 0, 0.04);
  }
}

/* Dark Mode Mobile Optimizations */
@media (max-width: 767px) {
  .dark .premium-card-universal {
    /* Slightly lighter background on mobile for better readability */
    background: rgba(15, 23, 42, 0.8);
  }
}

/* Safe Area Insets (iPhone notch, etc.) */
@supports (padding: max(0px)) {
  .safe-area-inset-top {
    padding-top: max(env(safe-area-inset-top), 1rem);
  }

  .safe-area-inset-bottom {
    padding-bottom: max(env(safe-area-inset-bottom), 1rem);
  }

  .safe-area-inset-left {
    padding-left: max(env(safe-area-inset-left), 1rem);
  }

  .safe-area-inset-right {
    padding-right: max(env(safe-area-inset-right), 1rem);
  }
}

/* Responsive Typography - Fluid Scaling */
.text-responsive-xl {
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.1;
}

.text-responsive-lg {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  line-height: 1.2;
}

.text-responsive-md {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  line-height: 1.3;
}

.text-responsive-sm {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  line-height: 1.4;
}

/* Mobile Navigation Optimizations */
@media (max-width: 767px) {
  /* Full-width mobile sidebar */
  .mobile-sidebar {
    width: 100%;
    max-width: 320px;
  }

  /* Optimize navbar for mobile */
  .mobile-navbar {
    height: 56px; /* Slightly shorter on mobile */
  }

  /* Stack navbar items vertically if needed */
  .mobile-stack {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Tablet-Specific Optimizations */
@media (min-width: 768px) and (max-width: 1024px) {
  /* Optimize sidebar width for tablets */
  .tablet-sidebar-collapsed {
    width: 64px;
  }

  .tablet-sidebar-expanded {
    width: 224px;
  }
}

/* Print Styles - Ensure dashboard prints well */
@media print {
  /* Hide interactive elements */
  .premium-button,
  .premium-hover-lift,
  button,
  nav {
    display: none !important;
  }

  /* Optimize for print */
  .premium-card-universal {
    page-break-inside: avoid;
    box-shadow: none;
    border: 1px solid #000;
  }

  /* Remove backgrounds */
  * {
    background: white !important;
    color: black !important;
  }

  /* Optimize typography for print */
  body {
    font-size: 12pt;
  }

  .text-headline {
    font-size: 18pt;
  }

  .text-title {
    font-size: 14pt;
  }
}

/* Accessibility - High Contrast Mode */
@media (prefers-contrast: high) {
  .premium-card-universal {
    border-width: 2px;
    border-color: currentColor;
  }

  .premium-focus-ring:focus-visible {
    outline-width: 3px;
    outline-offset: 3px;
  }

  /* Increase text contrast */
  .text-[var(--text-muted)] {
    opacity: 1;
    color: currentColor;
  }
}

/* Reduced Data Mode - Disable animations on slow connections */
@media (prefers-reduced-data: reduce) {
  /* Disable background animations */
  .premium-background,
  .shimmer,
  .animate-pulse {
    animation: none !important;
  }

  /* Remove heavy shadows */
  .shadow-elevation-3,
  .shadow-elevation-4 {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
  }
}

/* Hover-Capable Devices Only */
@media (hover: hover) and (pointer: fine) {
  /* Enable hover effects only on devices with precise pointers */
  .hover-scale:hover {
    transform: scale(1.1);
  }

  .hover-lift-strong:hover {
    box-shadow: 
      0 0 0 1px rgba(0, 0, 0, 0.05),
      0 4px 8px rgba(0, 0, 0, 0.08),
      0 8px 16px rgba(0, 0, 0, 0.1),
      0 16px 32px rgba(0, 0, 0, 0.08);
  }
}

/* Container Queries - Modern Responsive Design */
@supports (container-type: inline-size) {
  .container-responsive {
    container-type: inline-size;
    container-name: card;
  }

  /* Card adapts to its container, not viewport */
  @container card (min-width: 400px) {
    .container-card {
      padding: 1.5rem;
    }
  }

  @container card (max-width: 399px) {
    .container-card {
      padding: 1rem;
    }
  }
}

/* Utility Classes for Responsive Design */
.mobile-only {
  display: block;
}

.tablet-only,
.desktop-only {
  display: none;
}

@media (min-width: 768px) {
  .mobile-only {
    display: none;
  }

  .tablet-only {
    display: block;
  }
}

@media (min-width: 1024px) {
  .tablet-only {
    display: none;
  }

  .desktop-only {
    display: block;
  }
}

/* Smooth Scrolling - iOS Safari Fix */
.smooth-scroll {
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

/* iOS Input Zoom Prevention */
@media (max-width: 767px) {
  input,
  select,
  textarea {
    font-size: 16px !important; /* Prevents iOS zoom on focus */
  }
}

/* Android Chrome Address Bar Compensation */
@supports (-webkit-touch-callout: none) {
  .min-h-screen {
    min-height: -webkit-fill-available;
  }
}

/* ============================================
   PHASE 4: APPLE-GRADE GLASS & MATTE EFFECTS
   Enterprise-Grade Visual Polish
   ============================================ */

/* Glass Morphism - macOS Big Sur Style */
.glass-sidebar {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-right: 1px solid rgba(0, 0, 0, 0.08);
}

.dark .glass-sidebar {
  background: rgba(30, 30, 30, 0.75);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

/* Matte Surface - Subtle texture for depth */
.matte-surface {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.05) 0%,
    rgba(255, 255, 255, 0) 100%
  );
}

.dark .matte-surface {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.03) 0%,
    rgba(255, 255, 255, 0) 100%
  );
}

/* Premium Card with Glass Effect */
.glass-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px) saturate(150%);
  -webkit-backdrop-filter: blur(10px) saturate(150%);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.02),
    0 2px 4px rgba(0, 0, 0, 0.04),
    0 4px 8px rgba(0, 0, 0, 0.03);
}

.dark .glass-card {
  background: rgba(30, 30, 30, 0.8);
  backdrop-filter: blur(10px) saturate(150%);
  -webkit-backdrop-filter: blur(10px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.05),
    0 2px 4px rgba(0, 0, 0, 0.3),
    0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Frosted Glass - iOS Style */
.frosted-glass {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(30px) saturate(200%);
  -webkit-backdrop-filter: blur(30px) saturate(200%);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.dark .frosted-glass {
  background: rgba(20, 20, 20, 0.7);
  backdrop-filter: blur(30px) saturate(200%);
  -webkit-backdrop-filter: blur(30px) saturate(200%);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Sidebar Section Headers with Matte Finish */
.sidebar-section-header {
  position: relative;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.02) 0%,
    rgba(0, 0, 0, 0) 100%
  );
  border-radius: 8px;
  transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.dark .sidebar-section-header {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.03) 0%,
    rgba(255, 255, 255, 0) 100%
  );
}

.sidebar-section-header:hover {
  background: rgba(0, 0, 0, 0.03);
}

.dark .sidebar-section-header:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* Active Menu Item - Glass Highlight */
.menu-item-active {
  background: linear-gradient(
    135deg,
    rgba(59, 130, 246, 0.1) 0%,
    rgba(147, 51, 234, 0.08) 100%
  );
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(59, 130, 246, 0.2);
  box-shadow: 
    0 0 0 1px rgba(59, 130, 246, 0.1),
    0 2px 8px rgba(59, 130, 246, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.dark .menu-item-active {
  background: linear-gradient(
    135deg,
    rgba(59, 130, 246, 0.15) 0%,
    rgba(147, 51, 234, 0.12) 100%
  );
  border: 1px solid rgba(59, 130, 246, 0.3);
  box-shadow: 
    0 0 0 1px rgba(59, 130, 246, 0.2),
    0 2px 8px rgba(59, 130, 246, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Hover State - Subtle Glass */
.menu-item-hover {
  background: rgba(0, 0, 0, 0.03);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.dark .menu-item-hover {
  background: rgba(255, 255, 255, 0.05);
}

/* Divider with Glass Effect */
.glass-divider {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(0, 0, 0, 0.08) 20%,
    rgba(0, 0, 0, 0.08) 80%,
    transparent 100%
  );
  position: relative;
}

.glass-divider::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.4) 50%,
    transparent 100%
  );
  opacity: 0.5;
}

.dark .glass-divider {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.1) 20%,
    rgba(255, 255, 255, 0.1) 80%,
    transparent 100%
  );
}

/* Navbar Glass Effect */
.glass-navbar {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 
    0 1px 0 rgba(255, 255, 255, 0.5),
    0 1px 3px rgba(0, 0, 0, 0.05);
}

.dark .glass-navbar {
  background: rgba(20, 20, 20, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 
    0 1px 0 rgba(255, 255, 255, 0.05),
    0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Stat Card Glass Effect */
.glass-stat-card {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.9) 0%,
    rgba(255, 255, 255, 0.7) 100%
  );
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.03),
    0 2px 4px rgba(0, 0, 0, 0.04),
    0 4px 8px rgba(0, 0, 0, 0.03),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.dark .glass-stat-card {
  background: linear-gradient(
    135deg,
    rgba(40, 40, 40, 0.9) 0%,
    rgba(30, 30, 30, 0.8) 100%
  );
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.05),
    0 2px 4px rgba(0, 0, 0, 0.3),
    0 4px 8px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Matte Button - Subtle texture */
.matte-button {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0) 100%
  );
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 
    0 1px 2px rgba(0, 0, 0, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.dark .matte-button {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.08) 0%,
    rgba(255, 255, 255, 0) 100%
  );
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 
    0 1px 2px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.matte-button:hover {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.15) 0%,
    rgba(255, 255, 255, 0.05) 100%
  );
  box-shadow: 
    0 2px 4px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.dark .matte-button:hover {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.12) 0%,
    rgba(255, 255, 255, 0.04) 100%
  );
  box-shadow: 
    0 2px 4px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

/* Vibrancy Effect - macOS Style */
.vibrancy-light {
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(40px) saturate(200%) brightness(110%);
  -webkit-backdrop-filter: blur(40px) saturate(200%) brightness(110%);
}

.vibrancy-dark {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(40px) saturate(200%) brightness(80%);
  -webkit-backdrop-filter: blur(40px) saturate(200%) brightness(80%);
}

/* Translucent Overlay */
.translucent-overlay {
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.dark .translucent-overlay {
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* Enterprise-Grade Depth Layers */
.depth-layer-1 {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.04),
    0 1px 2px rgba(0, 0, 0, 0.05);
}

.depth-layer-2 {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.04),
    0 2px 4px rgba(0, 0, 0, 0.06),
    0 4px 8px rgba(0, 0, 0, 0.04);
}

.depth-layer-3 {
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.05),
    0 4px 8px rgba(0, 0, 0, 0.08),
    0 8px 16px rgba(0, 0, 0, 0.06),
    0 16px 32px rgba(0, 0, 0, 0.04);
}

.dark .depth-layer-1 {
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.05),
    0 1px 2px rgba(0, 0, 0, 0.3);
}

.dark .depth-layer-2 {
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.05),
    0 2px 4px rgba(0, 0, 0, 0.4),
    0 4px 8px rgba(0, 0, 0, 0.3);
}

.dark .depth-layer-3 {
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 4px 8px rgba(0, 0, 0, 0.5),
    0 8px 16px rgba(0, 0, 0, 0.4),
    0 16px 32px rgba(0, 0, 0, 0.3);
}

/* Subtle Noise Texture for Depth */
.noise-texture {
  position: relative;
}

.noise-texture::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  border-radius: inherit;
}

.dark .noise-texture::before {
  opacity: 0.05;
}

/* Premium Gradient Overlays */
.gradient-overlay-subtle {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.05) 0%,
    transparent 50%,
    rgba(0, 0, 0, 0.02) 100%
  );
}

.dark .gradient-overlay-subtle {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.03) 0%,
    transparent 50%,
    rgba(0, 0, 0, 0.05) 100%
  );
}

/* Fallback for browsers without backdrop-filter support */
@supports not (backdrop-filter: blur(10px)) {
  .glass-sidebar,
  .glass-card,
  .glass-navbar,
  .glass-stat-card,
  .frosted-glass {
    background: rgba(255, 255, 255, 0.95);
  }
  
  .dark .glass-sidebar,
  .dark .glass-card,
  .dark .glass-navbar,
  .dark .glass-stat-card,
  .dark .frosted-glass {
    background: rgba(30, 30, 30, 0.95);
  }
}

/* Performance Optimization - GPU Acceleration */
.glass-sidebar,
.glass-card,
.glass-navbar,
.glass-stat-card,
.frosted-glass,
.menu-item-active,
.menu-item-hover {
  will-change: transform, opacity;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}