/* ==========================================================================
   Material 3 Expressive Design Tokens
   Video Production Manager

   A comprehensive token system based on Material Design 3 with an expressive,
   purple/violet tonal palette. All component styles reference these tokens
   for consistent theming and easy dark mode support.
   ========================================================================== */

/* Google Fonts - Roboto */
@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,400;1,500&display=swap');

/* ==========================================================================
   Light Theme Tokens (Default)
   ========================================================================== */
:root {
  /* --------------------------------------------------------------------
     Color Tokens - Purple/Violet M3 Tonal Palette
     -------------------------------------------------------------------- */

  /* Primary */
  --md-sys-color-primary: #6750A4;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #EADDFF;
  --md-sys-color-on-primary-container: #21005D;
  --md-sys-color-primary-fixed: #EADDFF;
  --md-sys-color-primary-fixed-dim: #D0BCFF;
  --md-sys-color-on-primary-fixed: #21005D;
  --md-sys-color-on-primary-fixed-variant: #4F378B;
  --md-sys-color-inverse-primary: #D0BCFF;

  /* Secondary */
  --md-sys-color-secondary: #625B71;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #E8DEF8;
  --md-sys-color-on-secondary-container: #1D192B;

  /* Tertiary */
  --md-sys-color-tertiary: #7D5260;
  --md-sys-color-on-tertiary: #FFFFFF;
  --md-sys-color-tertiary-container: #FFD8E4;
  --md-sys-color-on-tertiary-container: #31111D;

  /* Error */
  --md-sys-color-error: #B3261E;
  --md-sys-color-on-error: #FFFFFF;
  --md-sys-color-error-container: #F9DEDC;
  --md-sys-color-on-error-container: #410E0B;

  /* Surface */
  --md-sys-color-surface: #FFFBFE;
  --md-sys-color-on-surface: #1C1B1F;
  --md-sys-color-surface-variant: #E7E0EC;
  --md-sys-color-on-surface-variant: #49454F;
  --md-sys-color-inverse-surface: #313033;
  --md-sys-color-inverse-on-surface: #F4EFF4;

  /* Surface Tint & Dim */
  --md-sys-color-surface-tint: #6750A4;
  --md-sys-color-surface-dim: #DED8E1;
  --md-sys-color-surface-bright: #FFFBFE;

  /* Surface Container hierarchy */
  --md-sys-color-surface-container-lowest: #FFFFFF;
  --md-sys-color-surface-container-low: #F7F2FA;
  --md-sys-color-surface-container: #F3EDF7;
  --md-sys-color-surface-container-high: #ECE6F0;
  --md-sys-color-surface-container-highest: #E6E0E9;

  /* Outline */
  --md-sys-color-outline: #79747E;
  --md-sys-color-outline-variant: #CAC4D0;

  /* Scrim & Shadow */
  --md-sys-color-scrim: #000000;
  --md-sys-color-shadow: #000000;

  /* Custom - Success (not in M3 spec, but useful for production status) */
  --md-sys-color-success: #386A20;
  --md-sys-color-on-success: #FFFFFF;
  --md-sys-color-success-container: #B8F397;
  --md-sys-color-on-success-container: #062100;

  /* Custom - Warning */
  --md-sys-color-warning: #7D5700;
  --md-sys-color-on-warning: #FFFFFF;
  --md-sys-color-warning-container: #FFDEA6;
  --md-sys-color-on-warning-container: #271900;

  /* Background (aliases for surface) */
  --md-sys-color-background: #FFFBFE;
  --md-sys-color-on-background: #1C1B1F;

  /* --------------------------------------------------------------------
     Typography Tokens - Roboto Type Scale
     -------------------------------------------------------------------- */

  /* Font Family */
  --md-sys-typescale-font-family: 'Roboto', system-ui, -apple-system, sans-serif;

  /* Display */
  --md-sys-typescale-display-large-size: 57px;
  --md-sys-typescale-display-large-line-height: 64px;
  --md-sys-typescale-display-large-weight: 400;
  --md-sys-typescale-display-large-tracking: -0.25px;

  --md-sys-typescale-display-medium-size: 45px;
  --md-sys-typescale-display-medium-line-height: 52px;
  --md-sys-typescale-display-medium-weight: 400;
  --md-sys-typescale-display-medium-tracking: 0px;

  --md-sys-typescale-display-small-size: 36px;
  --md-sys-typescale-display-small-line-height: 44px;
  --md-sys-typescale-display-small-weight: 400;
  --md-sys-typescale-display-small-tracking: 0px;

  /* Headline */
  --md-sys-typescale-headline-large-size: 32px;
  --md-sys-typescale-headline-large-line-height: 40px;
  --md-sys-typescale-headline-large-weight: 400;
  --md-sys-typescale-headline-large-tracking: 0px;

  --md-sys-typescale-headline-medium-size: 28px;
  --md-sys-typescale-headline-medium-line-height: 36px;
  --md-sys-typescale-headline-medium-weight: 400;
  --md-sys-typescale-headline-medium-tracking: 0px;

  --md-sys-typescale-headline-small-size: 24px;
  --md-sys-typescale-headline-small-line-height: 32px;
  --md-sys-typescale-headline-small-weight: 400;
  --md-sys-typescale-headline-small-tracking: 0px;

  /* Title */
  --md-sys-typescale-title-large-size: 22px;
  --md-sys-typescale-title-large-line-height: 28px;
  --md-sys-typescale-title-large-weight: 400;
  --md-sys-typescale-title-large-tracking: 0px;

  --md-sys-typescale-title-medium-size: 16px;
  --md-sys-typescale-title-medium-line-height: 24px;
  --md-sys-typescale-title-medium-weight: 500;
  --md-sys-typescale-title-medium-tracking: 0.15px;

  --md-sys-typescale-title-small-size: 14px;
  --md-sys-typescale-title-small-line-height: 20px;
  --md-sys-typescale-title-small-weight: 500;
  --md-sys-typescale-title-small-tracking: 0.1px;

  /* Body */
  --md-sys-typescale-body-large-size: 16px;
  --md-sys-typescale-body-large-line-height: 24px;
  --md-sys-typescale-body-large-weight: 400;
  --md-sys-typescale-body-large-tracking: 0.5px;

  --md-sys-typescale-body-medium-size: 14px;
  --md-sys-typescale-body-medium-line-height: 20px;
  --md-sys-typescale-body-medium-weight: 400;
  --md-sys-typescale-body-medium-tracking: 0.25px;

  --md-sys-typescale-body-small-size: 12px;
  --md-sys-typescale-body-small-line-height: 16px;
  --md-sys-typescale-body-small-weight: 400;
  --md-sys-typescale-body-small-tracking: 0.4px;

  /* Label */
  --md-sys-typescale-label-large-size: 14px;
  --md-sys-typescale-label-large-line-height: 20px;
  --md-sys-typescale-label-large-weight: 500;
  --md-sys-typescale-label-large-tracking: 0.1px;

  --md-sys-typescale-label-medium-size: 12px;
  --md-sys-typescale-label-medium-line-height: 16px;
  --md-sys-typescale-label-medium-weight: 500;
  --md-sys-typescale-label-medium-tracking: 0.5px;

  --md-sys-typescale-label-small-size: 11px;
  --md-sys-typescale-label-small-line-height: 16px;
  --md-sys-typescale-label-small-weight: 500;
  --md-sys-typescale-label-small-tracking: 0.5px;

  /* --------------------------------------------------------------------
     Shape Tokens - Corner Radius
     -------------------------------------------------------------------- */
  --md-sys-shape-corner-none: 0px;
  --md-sys-shape-corner-extra-small: 4px;
  --md-sys-shape-corner-small: 8px;
  --md-sys-shape-corner-medium: 12px;
  --md-sys-shape-corner-large: 16px;
  --md-sys-shape-corner-extra-large: 28px;
  --md-sys-shape-corner-full: 9999px;

  /* --------------------------------------------------------------------
     Elevation Tokens - Box Shadows
     M3 uses tonal surface colors + shadow for elevation.
     -------------------------------------------------------------------- */
  --md-sys-elevation-level0: none;

  --md-sys-elevation-level1:
    0px 1px 2px rgba(0, 0, 0, 0.30),
    0px 1px 3px 1px rgba(0, 0, 0, 0.15);

  --md-sys-elevation-level2:
    0px 1px 2px rgba(0, 0, 0, 0.30),
    0px 2px 6px 2px rgba(0, 0, 0, 0.15);

  --md-sys-elevation-level3:
    0px 4px 8px 3px rgba(0, 0, 0, 0.15),
    0px 1px 3px rgba(0, 0, 0, 0.30);

  --md-sys-elevation-level4:
    0px 6px 10px 4px rgba(0, 0, 0, 0.15),
    0px 2px 3px rgba(0, 0, 0, 0.30);

  --md-sys-elevation-level5:
    0px 8px 12px 6px rgba(0, 0, 0, 0.15),
    0px 4px 4px rgba(0, 0, 0, 0.30);

  /* --------------------------------------------------------------------
     Motion / Animation Tokens
     M3 Expressive uses emphasized easing (spring-like curves)
     -------------------------------------------------------------------- */

  /* Durations */
  --md-sys-motion-duration-short1: 50ms;
  --md-sys-motion-duration-short2: 100ms;
  --md-sys-motion-duration-short3: 150ms;
  --md-sys-motion-duration-short4: 200ms;
  --md-sys-motion-duration-medium1: 250ms;
  --md-sys-motion-duration-medium2: 300ms;
  --md-sys-motion-duration-medium3: 350ms;
  --md-sys-motion-duration-medium4: 400ms;
  --md-sys-motion-duration-long1: 450ms;
  --md-sys-motion-duration-long2: 500ms;
  --md-sys-motion-duration-long3: 550ms;
  --md-sys-motion-duration-long4: 600ms;
  --md-sys-motion-duration-extra-long1: 700ms;
  --md-sys-motion-duration-extra-long2: 800ms;
  --md-sys-motion-duration-extra-long3: 900ms;
  --md-sys-motion-duration-extra-long4: 1000ms;

  /* Easing - M3 Expressive emphasized easing (spring-like) */
  --md-sys-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --md-sys-motion-easing-standard-decelerate: cubic-bezier(0, 0, 0, 1);
  --md-sys-motion-easing-standard-accelerate: cubic-bezier(0.3, 0, 1, 1);
  --md-sys-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --md-sys-motion-easing-emphasized-decelerate: cubic-bezier(0.05, 0.7, 0.1, 1.0);
  --md-sys-motion-easing-emphasized-accelerate: cubic-bezier(0.3, 0, 0.8, 0.15);

  /* Expressive spring-like easing (overshoot for playful feel) */
  --md-sys-motion-easing-expressive: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --md-sys-motion-easing-expressive-decel: cubic-bezier(0.0, 0.0, 0.2, 1.4);

  /* Shorthand motion tokens for common patterns */
  --md-sys-motion-transition-entering: var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized-decelerate);
  --md-sys-motion-transition-exiting: var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-emphasized-accelerate);
  --md-sys-motion-transition-standard: var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);

  /* --------------------------------------------------------------------
     State Layer Opacities
     -------------------------------------------------------------------- */
  --md-sys-state-hover-opacity: 0.08;
  --md-sys-state-focus-opacity: 0.12;
  --md-sys-state-pressed-opacity: 0.12;
  --md-sys-state-dragged-opacity: 0.16;
  --md-sys-state-disabled-opacity: 0.38;
  --md-sys-state-disabled-container-opacity: 0.12;

  /* --------------------------------------------------------------------
     Spacing / Layout Tokens
     -------------------------------------------------------------------- */
  --md-sys-spacing-xs: 4px;
  --md-sys-spacing-sm: 8px;
  --md-sys-spacing-md: 16px;
  --md-sys-spacing-lg: 24px;
  --md-sys-spacing-xl: 32px;
  --md-sys-spacing-2xl: 48px;
  --md-sys-spacing-3xl: 64px;

  /* Navigation rail width */
  --md-sys-navigation-rail-width: 80px;

  /* Top app bar height */
  --md-sys-top-app-bar-height: 64px;
}

/* ==========================================================================
   Dark Theme Tokens
   ========================================================================== */
@media (prefers-color-scheme: dark) {
  :root {
    /* Primary */
    --md-sys-color-primary: #D0BCFF;
    --md-sys-color-on-primary: #381E72;
    --md-sys-color-primary-container: #4F378B;
    --md-sys-color-on-primary-container: #EADDFF;
    --md-sys-color-primary-fixed: #EADDFF;
    --md-sys-color-primary-fixed-dim: #D0BCFF;
    --md-sys-color-on-primary-fixed: #21005D;
    --md-sys-color-on-primary-fixed-variant: #4F378B;
    --md-sys-color-inverse-primary: #6750A4;

    /* Secondary */
    --md-sys-color-secondary: #CCC2DC;
    --md-sys-color-on-secondary: #332D41;
    --md-sys-color-secondary-container: #4A4458;
    --md-sys-color-on-secondary-container: #E8DEF8;

    /* Tertiary */
    --md-sys-color-tertiary: #EFB8C8;
    --md-sys-color-on-tertiary: #492532;
    --md-sys-color-tertiary-container: #633B48;
    --md-sys-color-on-tertiary-container: #FFD8E4;

    /* Error */
    --md-sys-color-error: #F2B8B5;
    --md-sys-color-on-error: #601410;
    --md-sys-color-error-container: #8C1D18;
    --md-sys-color-on-error-container: #F9DEDC;

    /* Surface */
    --md-sys-color-surface: #141218;
    --md-sys-color-on-surface: #E6E0E9;
    --md-sys-color-surface-variant: #49454F;
    --md-sys-color-on-surface-variant: #CAC4D0;
    --md-sys-color-inverse-surface: #E6E0E9;
    --md-sys-color-inverse-on-surface: #313033;

    /* Surface Tint & Dim */
    --md-sys-color-surface-tint: #D0BCFF;
    --md-sys-color-surface-dim: #141218;
    --md-sys-color-surface-bright: #3B383E;

    /* Surface Container hierarchy */
    --md-sys-color-surface-container-lowest: #0F0D13;
    --md-sys-color-surface-container-low: #1D1B20;
    --md-sys-color-surface-container: #211F26;
    --md-sys-color-surface-container-high: #2B2930;
    --md-sys-color-surface-container-highest: #36343B;

    /* Outline */
    --md-sys-color-outline: #938F99;
    --md-sys-color-outline-variant: #49454F;

    /* Scrim & Shadow */
    --md-sys-color-scrim: #000000;
    --md-sys-color-shadow: #000000;

    /* Custom - Success */
    --md-sys-color-success: #9DD67E;
    --md-sys-color-on-success: #0C3900;
    --md-sys-color-success-container: #1A5100;
    --md-sys-color-on-success-container: #B8F397;

    /* Custom - Warning */
    --md-sys-color-warning: #F5BF48;
    --md-sys-color-on-warning: #422C00;
    --md-sys-color-warning-container: #5F4100;
    --md-sys-color-on-warning-container: #FFDEA6;

    /* Background */
    --md-sys-color-background: #141218;
    --md-sys-color-on-background: #E6E0E9;

    /* Dark mode elevation uses lighter shadow blends */
    --md-sys-elevation-level1:
      0px 1px 3px 1px rgba(0, 0, 0, 0.40),
      0px 1px 2px rgba(0, 0, 0, 0.50);

    --md-sys-elevation-level2:
      0px 2px 6px 2px rgba(0, 0, 0, 0.40),
      0px 1px 2px rgba(0, 0, 0, 0.50);

    --md-sys-elevation-level3:
      0px 4px 8px 3px rgba(0, 0, 0, 0.40),
      0px 1px 3px rgba(0, 0, 0, 0.50);

    --md-sys-elevation-level4:
      0px 6px 10px 4px rgba(0, 0, 0, 0.40),
      0px 2px 3px rgba(0, 0, 0, 0.50);

    --md-sys-elevation-level5:
      0px 8px 12px 6px rgba(0, 0, 0, 0.40),
      0px 4px 4px rgba(0, 0, 0, 0.50);
  }
}

/* ==========================================================================
   Typography Utility Classes
   ========================================================================== */

.md-display-large {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-display-large-size);
  line-height: var(--md-sys-typescale-display-large-line-height);
  font-weight: var(--md-sys-typescale-display-large-weight);
  letter-spacing: var(--md-sys-typescale-display-large-tracking);
}

.md-display-medium {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-display-medium-size);
  line-height: var(--md-sys-typescale-display-medium-line-height);
  font-weight: var(--md-sys-typescale-display-medium-weight);
  letter-spacing: var(--md-sys-typescale-display-medium-tracking);
}

.md-display-small {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-display-small-size);
  line-height: var(--md-sys-typescale-display-small-line-height);
  font-weight: var(--md-sys-typescale-display-small-weight);
  letter-spacing: var(--md-sys-typescale-display-small-tracking);
}

.md-headline-large {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-headline-large-size);
  line-height: var(--md-sys-typescale-headline-large-line-height);
  font-weight: var(--md-sys-typescale-headline-large-weight);
  letter-spacing: var(--md-sys-typescale-headline-large-tracking);
}

.md-headline-medium {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-headline-medium-size);
  line-height: var(--md-sys-typescale-headline-medium-line-height);
  font-weight: var(--md-sys-typescale-headline-medium-weight);
  letter-spacing: var(--md-sys-typescale-headline-medium-tracking);
}

.md-headline-small {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-headline-small-size);
  line-height: var(--md-sys-typescale-headline-small-line-height);
  font-weight: var(--md-sys-typescale-headline-small-weight);
  letter-spacing: var(--md-sys-typescale-headline-small-tracking);
}

.md-title-large {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-title-large-size);
  line-height: var(--md-sys-typescale-title-large-line-height);
  font-weight: var(--md-sys-typescale-title-large-weight);
  letter-spacing: var(--md-sys-typescale-title-large-tracking);
}

.md-title-medium {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-title-medium-size);
  line-height: var(--md-sys-typescale-title-medium-line-height);
  font-weight: var(--md-sys-typescale-title-medium-weight);
  letter-spacing: var(--md-sys-typescale-title-medium-tracking);
}

.md-title-small {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-title-small-size);
  line-height: var(--md-sys-typescale-title-small-line-height);
  font-weight: var(--md-sys-typescale-title-small-weight);
  letter-spacing: var(--md-sys-typescale-title-small-tracking);
}

.md-body-large {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-body-large-size);
  line-height: var(--md-sys-typescale-body-large-line-height);
  font-weight: var(--md-sys-typescale-body-large-weight);
  letter-spacing: var(--md-sys-typescale-body-large-tracking);
}

.md-body-medium {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line-height);
  font-weight: var(--md-sys-typescale-body-medium-weight);
  letter-spacing: var(--md-sys-typescale-body-medium-tracking);
}

.md-body-small {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-body-small-size);
  line-height: var(--md-sys-typescale-body-small-line-height);
  font-weight: var(--md-sys-typescale-body-small-weight);
  letter-spacing: var(--md-sys-typescale-body-small-tracking);
}

.md-label-large {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-label-large-size);
  line-height: var(--md-sys-typescale-label-large-line-height);
  font-weight: var(--md-sys-typescale-label-large-weight);
  letter-spacing: var(--md-sys-typescale-label-large-tracking);
}

.md-label-medium {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-label-medium-size);
  line-height: var(--md-sys-typescale-label-medium-line-height);
  font-weight: var(--md-sys-typescale-label-medium-weight);
  letter-spacing: var(--md-sys-typescale-label-medium-tracking);
}

.md-label-small {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-label-small-size);
  line-height: var(--md-sys-typescale-label-small-line-height);
  font-weight: var(--md-sys-typescale-label-small-weight);
  letter-spacing: var(--md-sys-typescale-label-small-tracking);
}

/* ==========================================================================
   Base Reset & Defaults
   ========================================================================== */

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--md-sys-typescale-font-family);
  font-size: var(--md-sys-typescale-body-large-size);
  line-height: var(--md-sys-typescale-body-large-line-height);
  font-weight: var(--md-sys-typescale-body-large-weight);
  letter-spacing: var(--md-sys-typescale-body-large-tracking);
  color: var(--md-sys-color-on-background);
  background-color: var(--md-sys-color-background);
}

a {
  color: var(--md-sys-color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

::selection {
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
}

/* Scrollbar styling for webkit browsers */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background-color: var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-full);
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--md-sys-color-outline);
}