/* style.css - Keep your existing styles and add Material Design 3 specific overrides */
canvas#shader-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1; /* Puts the canvas behind everything else */
}

/* ==========================================================================
Font Definitions
========================================================================== */
/*
  Font Optimization:
  Review if all these fonts are strictly necessary. Each @font-face is a download.
  Consider using fewer custom fonts or serving them from your own domain in WOFF2 format.
  Material Design 3 primarily uses Google Sans and Roboto. Consider consolidating.
*/
@font-face {
  font-family: "UberMoveBold"; /* Consider replacing with Google Sans Bold or Roboto Bold */
  src: url("fonts/cashsans_black.otf") format("opentype");
  font-display: swap;
}

@font-face {
  font-family: "categories"; /* Consider replacing with Google Sans Regular or Roboto Regular */
  src: url("fonts/GoogleSans-Regular.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "LyftProBold"; /* Consider replacing with Google Sans Bold or Roboto Bold */
  src: url("fonts/UberMove-Bold.otf") format("opentype");
  font-display: swap;
}

@font-face {
  font-family: "CustomFont"; /* Consider replacing with Google Sans or Roboto */
  src: url("fonts/ProductSans-Play.otf") format("opentype");
  font-display: swap;
}

@font-face {
  font-family: "HeaderFontStyle"; /* Decorative font, keep if essential for brand */
  src: url("fonts/Tourner.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "HeaderSubtitleStyle"; /* Decorative font, keep if essential for brand */
  src: url("fonts/MajorMonoDisplay-Regular.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "ImportantNotes"; /* Redundant with 'categories' if both use GoogleSans-Regular */
  src: url("fonts/GoogleSans-Regular.ttf") format("truetype");
  font-display: swap;
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: "navTabs"; /* Consider replacing with Google Sans Bold or Roboto Bold */
  src: url("fonts/google_sans_bold.ttf") format("truetype");
  font-display: swap;
  font-weight: normal;
  font-style: normal;
}

/* ==========================================================================
Root Variables (Themes and Common) - Aligned with Material Design 3 Color System
========================================================================== */
:root {
  /* Common variables for both themes if they share values or structure */
  --border-radius-sm: 8px; /* Smaller radius for buttons/inputs */
  --border-radius-md: 16px; /* Medium radius for cards/panels - 16dp equivalent */
  --border-radius-lg: 28px; /* Larger radius for sheets/dialogs - Material 3 standard */
  --border-radius-xl: 48px; /* Extra large for specific components */

  /* Material 3-like Elevation Shadows (tonal elevation) */
  --md-sys-elevation-1:
    0px 1px 3px 1px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.3);
  --md-sys-elevation-2:
    0px 2px 6px 2px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.3);
  --md-sys-elevation-3:
    0px 4px 8px 3px rgba(0, 0, 0, 0.15), 0px 1px 3px 0px rgba(0, 0, 0, 0.3); /* For bottom nav */
  --md-sys-elevation-4:
    0px 6px 10px 4px rgba(0, 0, 0, 0.15), 0px 2px 4px 0px rgba(0, 0, 0, 0.3);
  --md-sys-elevation-5:
    0px 8px 12px 6px rgba(0, 0, 0, 0.15), 0px 4px 6px 0px rgba(0, 0, 0, 0.3);

  /* Frosted glass effect - optimized for performance */
  --frosted-glass-effect: blur(12px) saturate(1.8);
  --transition-duration-short: 0.15s;
  --transition-duration-medium: 0.3s;
  --transition-duration-long: 0.5s;

  /* Ripple color - Material 3 uses a slightly desaturated primary color often */
  --ripple-color: rgba(93, 46, 255, 0.15);

  /* Decorative sparkles/noise palette - might vary by theme, but keep common for now */
  --color1: 93, 46, 255;
  --color2: 255, 92, 206;
  --color3: 123, 92, 255;
  --color4: 255, 206, 92;
  --color5: 92, 255, 217;
  --color-interactive: 93, 46, 255;
  --circle-size: 50%;
  --blending: color-dodge; /* Default blending mode, can be overridden by theme */

  /* Helper for RGB extraction for rgba() functions - Default (will be overridden by themes) */
  /* These will be defined per theme directly below */
  --md-sys-color-primary-rgb: 0, 0, 0;
  --md-sys-color-on-primary-rgb: 0, 0, 0;
  --md-sys-color-primary-container-rgb: 0, 0, 0;
  --md-sys-color-on-primary-container-rgb: 0, 0, 0;
  --md-sys-color-secondary-rgb: 0, 0, 0;
  --md-sys-color-on-secondary-rgb: 0, 0, 0;
  --md-sys-color-secondary-container-rgb: 0, 0, 0;
  --md-sys-color-on-secondary-container-rgb: 0, 0, 0;
  --md-sys-color-tertiary-rgb: 0, 0, 0;
  --md-sys-color-on-tertiary-rgb: 0, 0, 0;
  --md-sys-color-tertiary-container-rgb: 0, 0, 0;
  --md-sys-color-on-tertiary-container-rgb: 0, 0, 0;
  --md-sys-color-error-rgb: 0, 0, 0;
  --md-sys-color-on-error-rgb: 0, 0, 0;
  --md-sys-color-error-container-rgb: 0, 0, 0;
  --md-sys-color-on-error-container-rgb: 0, 0, 0;
  --md-sys-color-background-rgb: 0, 0, 0;
  --md-sys-color-on-background-rgb: 0, 0, 0;
  --md-sys-color-surface-rgb: 0, 0, 0;
  --md-sys-color-on-surface-rgb: 0, 0, 0;
  --md-sys-color-surface-variant-rgb: 0, 0, 0;
  --md-sys-color-on-surface-variant-rgb: 0, 0, 0;
  --md-sys-color-outline-rgb: 0, 0, 0;
  --md-sys-color-outline-variant-rgb: 0, 0, 0;
  --md-sys-color-inverse-surface-rgb: 0, 0, 0;
  --md-sys-color-inverse-on-surface-rgb: 0, 0, 0;
  --md-sys-color-inverse-primary-rgb: 0, 0, 0;
  --md-sys-color-surface-tint-rgb: 0, 0, 0;
  --md-sys-color-surface-container-low-rgb: 0, 0, 0;
  --md-sys-color-surface-container-high-rgb: 0, 0, 0;
}

/* Material 3 Dark Theme Variables (default) - Semantic Color Naming */
body[data-theme="dark"] {
  /* Core Material 3 colors */
  --md-sys-color-primary: #d0bcff;
  --md-sys-color-on-primary: #381e72;
  --md-sys-color-primary-container: #4f378a;
  --md-sys-color-on-primary-container: #eaddff;
  --md-sys-color-secondary: #ccc2dc;
  --md-sys-color-on-secondary: #332d41;
  --md-sys-color-secondary-container: #4a4458;
  --md-sys-color-on-secondary-container: #e8def8;
  --md-sys-color-tertiary: #efb8c8;
  --md-sys-color-on-tertiary: #492532;
  --md-sys-color-tertiary-container: #633b48;
  --md-sys-color-on-tertiary-container: #ffdad9;
  --md-sys-color-error: #ffb4ab;
  --md-sys-color-on-error: #690005;
  --md-sys-color-error-container: #93000a;
  --md-sys-color-on-error-container: #ffdad6;
  --md-sys-color-background: #1c1b1f;
  --md-sys-color-on-background: #e6e1e5;
  --md-sys-color-surface: #1c1b1f;
  --md-sys-color-on-surface: #e6e1e5;
  --md-sys-color-surface-variant: #49454f;
  --md-sys-color-on-surface-variant: #cac4d0;
  --md-sys-color-outline: #948f99;
  --md-sys-color-outline-variant: #49454f;
  --md-sys-color-shadow: #000000;
  --md-sys-color-scrim: #000000;
  --md-sys-color-inverse-surface: #e6e1e5;
  --md-sys-color-inverse-on-surface: #313033;
  --md-sys-color-inverse-primary: #6750a4;
  --md-sys-color-surface-tint: #d0bcff;

  /* Helper for RGB extraction for rgba() functions */
  --md-sys-color-primary-rgb: 208, 188, 255;
  --md-sys-color-on-primary-rgb: 56, 30, 114;
  --md-sys-color-primary-container-rgb: 79, 55, 138;
  --md-sys-color-on-primary-container-rgb: 234, 221, 255;
  --md-sys-color-secondary-rgb: 204, 194, 220;
  --md-sys-color-on-secondary-rgb: 51, 45, 65;
  --md-sys-color-secondary-container-rgb: 74, 68, 88;
  --md-sys-color-on-secondary-container-rgb: 232, 222, 248;
  --md-sys-color-tertiary-rgb: 239, 184, 200;
  --md-sys-color-on-tertiary-rgb: 73, 37, 50;
  --md-sys-color-tertiary-container-rgb: 99, 59, 72;
  --md-sys-color-on-tertiary-container-rgb: 255, 218, 217;
  --md-sys-color-error-rgb: 255, 180, 171;
  --md-sys-color-on-error-rgb: 105, 0, 5;
  --md-sys-color-error-container-rgb: 147, 0, 10;
  --md-sys-color-on-error-container-rgb: 255, 218, 214;
  --md-sys-color-background-rgb: 28, 27, 31;
  --md-sys-color-on-background-rgb: 230, 225, 229;
  --md-sys-color-surface-rgb: 28, 27, 31;
  --md-sys-color-on-surface-rgb: 230, 225, 229;
  --md-sys-color-surface-variant-rgb: 73, 69, 79;
  --md-sys-color-on-surface-variant-rgb: 202, 196, 208;
  --md-sys-color-outline-rgb: 148, 143, 153;
  --md-sys-color-outline-variant-rgb: 73, 69, 79;
  --md-sys-color-inverse-surface-rgb: 230, 225, 229;
  --md-sys-color-inverse-on-surface-rgb: 49, 48, 51;
  --md-sys-color-inverse-primary-rgb: 103, 80, 164;
  --md-sys-color-surface-tint-rgb: 208, 188, 255;
  --md-sys-color-surface-container-low-rgb: 28, 27, 31;
  --md-sys-color-surface-container-high-rgb: 43, 41, 46;

  /* Custom glassmorphism elements, now using Material 3 semantic colors */
  --glass-surface: rgba(var(--md-sys-color-surface-rgb), 0.7);
  --glass-border-color: rgba(var(--md-sys-color-outline-rgb), 0.3);
  --glass-shadow-color: rgba(0, 0, 0, 0.65);

  /* Component specific colors using Material 3 palette */
  --header-background: rgba(var(--md-sys-color-surface-rgb), 0.8);
  --header-text-color: var(--md-sys-color-on-surface);
  --subtitle-color: var(--md-sys-color-on-surface-variant);
  --link-color: var(--md-sys-color-primary);
  --title-color-bright: var(--md-sys-color-on-surface);

  --note-bg-color: rgba(var(--md-sys-color-surface-container-low-rgb), 0.7);
  --note-text-color: var(--md-sys-color-on-surface);

  --button-bg-color: rgba(var(--md-sys-color-primary-rgb), 0.1);
  --button-border-color: rgba(var(--md-sys-color-outline-rgb), 0.4);
  --button-text-color: var(--md-sys-color-on-surface);
  --button-hover-bg-color: rgba(var(--md-sys-color-primary-rgb), 0.2);
  --button-hover-border-color: rgba(var(--md-sys-color-outline-rgb), 0.6);

  --active-tab-bg-color: rgba(var(--md-sys-color-primary-rgb), 0.2);
  --active-tab-text-color: var(--md-sys-color-primary);
  --inactive-tab-text-color: var(--md-sys-color-on-surface-variant);

  --grain-opacity-main: 0.15;
  --grain-opacity-extra: 0.1;
  --base-opacity: 0.4;
  --glow-color: rgba(0, 255, 255, 0.1);
}

/* Material 3 Light Theme Variables */
body[data-theme="light"] {
  /* Core Material 3 colors */
  --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-secondary: #625b71;
  --md-sys-color-on-secondary: #ffffff;
  --md-sys-color-secondary-container: #e8def8;
  --md-sys-color-on-secondary-container: #1d192b;
  --md-sys-color-tertiary: #7d5260;
  --md-sys-color-on-tertiary: #ffffff;
  --md-sys-color-tertiary-container: #ffdad9;
  --md-sys-color-on-tertiary-container: #31111d;
  --md-sys-color-error: #b3261e;
  --md-sys-color-on-error: #ffffff;
  --md-sys-color-error-container: #f9dedc;
  --md-sys-color-on-error-container: #410e0b;
  --md-sys-color-background: #fffbfe;
  --md-sys-color-on-background: #1c1b1f;
  --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-outline: #7a757f;
  --md-sys-color-outline-variant: #cac4d0;
  --md-sys-color-shadow: #000000;
  --md-sys-color-scrim: #000000;
  --md-sys-color-inverse-surface: #313033;
  --md-sys-color-inverse-on-surface: #f4eff4;
  --md-sys-color-inverse-primary: #d0bcff;
  --md-sys-color-surface-tint: #6750a4;

  /* Helper for RGB extraction for rgba() functions */
  --md-sys-color-primary-rgb: 103, 80, 164;
  --md-sys-color-on-primary-rgb: 255, 255, 255;
  --md-sys-color-primary-container-rgb: 234, 221, 255;
  --md-sys-color-on-primary-container-rgb: 33, 0, 93;
  --md-sys-color-secondary-rgb: 98, 91, 113;
  --md-sys-color-on-secondary-rgb: 255, 255, 255;
  --md-sys-color-secondary-container-rgb: 232, 222, 248;
  --md-sys-color-on-secondary-container-rgb: 29, 25, 43;
  --md-sys-color-tertiary-rgb: 125, 82, 96;
  --md-sys-color-on-tertiary-rgb: 255, 255, 255;
  --md-sys-color-tertiary-container-rgb: 255, 218, 217;
  --md-sys-color-on-tertiary-container-rgb: 49, 17, 29;
  --md-sys-color-error-rgb: 179, 38, 30;
  --md-sys-color-on-error-rgb: 255, 255, 255;
  --md-sys-color-error-container-rgb: 249, 222, 220;
  --md-sys-color-on-error-container-rgb: 65, 14, 11;
  --md-sys-color-background-rgb: 255, 251, 254;
  --md-sys-color-on-background-rgb: 28, 27, 31;
  --md-sys-color-surface-rgb: 255, 251, 254;
  --md-sys-color-on-surface-rgb: 28, 27, 31;
  --md-sys-color-surface-variant-rgb: 231, 224, 236;
  --md-sys-color-on-surface-variant-rgb: 73, 69, 79;
  --md-sys-color-outline-rgb: 122, 117, 127;
  --md-sys-color-outline-variant-rgb: 202, 196, 208;
  --md-sys-color-inverse-surface-rgb: 49, 48, 51;
  --md-sys-color-inverse-on-surface-rgb: 244, 239, 244;
  --md-sys-color-inverse-primary-rgb: 208, 188, 255;
  --md-sys-color-surface-tint-rgb: 103, 80, 164;
  --md-sys-color-surface-container-low-rgb: 255, 251, 254;
  --md-sys-color-surface-container-high-rgb: 243, 237, 247;

  /* Custom glassmorphism elements, now using Material 3 semantic colors */
  --glass-surface: rgba(var(--md-sys-color-surface-rgb), 0.7);
  --glass-border-color: rgba(var(--md-sys-color-outline-rgb), 0.3);
  --glass-shadow-color: rgba(0, 0, 0, 0.1);

  /* Component specific colors using Material 3 palette */
  --header-background: rgba(var(--md-sys-color-surface-rgb), 0.8);
  --header-text-color: var(--md-sys-color-on-surface);
  --subtitle-color: var(--md-sys-color-on-surface-variant);
  --link-color: var(--md-sys-color-primary);
  --title-color-bright: var(--md-sys-color-on-surface);

  --note-bg-color: rgba(var(--md-sys-color-surface-container-low-rgb), 0.7);
  --note-text-color: var(--md-sys-color-on-surface);

  --button-bg-color: rgba(var(--md-sys-color-primary-rgb), 0.1);
  --button-border-color: rgba(var(--md-sys-color-outline-rgb), 0.4);
  --button-text-color: var(--md-sys-color-on-surface);
  --button-hover-bg-color: rgba(var(--md-sys-color-primary-rgb), 0.2);
  --button-hover-border-color: rgba(var(--md-sys-color-outline-rgb), 0.6);

  --active-tab-bg-color: rgba(var(--md-sys-color-primary-rgb), 0.2);
  --active-tab-text-color: var(--md-sys-color-primary);
  --inactive-tab-text-color: var(--md-sys-color-on-surface-variant);

  /* Adjust animated background opacity for light theme */
  --grain-opacity-main: 0.1 !important;
  --grain-opacity-extra: 0.08 !important;
  --base-opacity: 0.15 !important;
  --glow-color: rgba(0, 255, 255, 0.05) !important;

  .animated-background {
    opacity: 0.55 !important;
  }
  .animated-background::before {
    opacity: 0.25 !important;
    mix-blend-mode: soft-light !important;
  }
}

/* Material 3 Grey Theme Variables */
body[data-theme="grey"] {
  /* This theme tries to mimic a dark grey Material 3 aesthetic */
  --md-sys-color-primary: #bb86fc;
  --md-sys-color-on-primary: #000000;
  --md-sys-color-primary-container: #3700b3;
  --md-sys-color-on-primary-container: #ffffff;
  --md-sys-color-secondary: #03dac6;
  --md-sys-color-on-secondary: #000000;
  --md-sys-color-secondary-container: #03dac6;
  --md-sys-color-on-secondary-container: #000000;
  --md-sys-color-background: #121212;
  --md-sys-color-on-background: #ffffff;
  --md-sys-color-surface: #1e1e1e;
  --md-sys-color-on-surface: #ffffff;
  --md-sys-color-surface-variant: #424242;
  --md-sys-color-on-surface-variant: #e0e0e0;
  --md-sys-color-outline: #616161;
  --md-sys-color-outline-variant: #303030;
  --md-sys-color-shadow: #000000;
  --md-sys-color-scrim: #000000;
  --md-sys-color-inverse-surface: #e0e0e0;
  --md-sys-color-inverse-on-surface: #212121;
  --md-sys-color-inverse-primary: #bb86fc;
  --md-sys-color-surface-tint: #bb86fc;

  /* Helper for RGB extraction for rgba() functions */
  --md-sys-color-primary-rgb: 187, 134, 252;
  --md-sys-color-on-primary-rgb: 0, 0, 0;
  --md-sys-color-primary-container-rgb: 55, 0, 179;
  --md-sys-color-on-primary-container-rgb: 255, 255, 255;
  --md-sys-color-secondary-rgb: 3, 218, 198;
  --md-sys-color-on-secondary-rgb: 0, 0, 0;
  --md-sys-color-secondary-container-rgb: 3, 218, 198;
  --md-sys-color-on-secondary-container-rgb: 0, 0, 0;
  --md-sys-color-background-rgb: 18, 18, 18;
  --md-sys-color-on-background-rgb: 255, 255, 255;
  --md-sys-color-surface-rgb: 30, 30, 30;
  --md-sys-color-on-surface-rgb: 255, 255, 255;
  --md-sys-color-surface-variant-rgb: 66, 66, 66;
  --md-sys-color-on-surface-variant-rgb: 224, 224, 224;
  --md-sys-color-outline-rgb: 97, 97, 97;
  --md-sys-color-outline-variant-rgb: 48, 48, 48;
  --md-sys-color-inverse-surface-rgb: 224, 224, 224;
  --md-sys-color-inverse-on-surface-rgb: 33, 33, 33;
  --md-sys-color-inverse-primary-rgb: 187, 134, 252;
  --md-sys-color-surface-tint-rgb: 187, 134, 252;
  --md-sys-color-surface-container-low-rgb: 30, 30, 30;
  --md-sys-color-surface-container-high-rgb: 42, 42, 42;

  /* Custom glassmorphism elements */
  --glass-surface: rgba(var(--md-sys-color-surface-rgb), 0.7);
  --glass-border-color: rgba(var(--md-sys-color-outline-rgb), 0.3);
  --glass-shadow-color: rgba(0, 0, 0, 0.7);

  --header-background: rgba(var(--md-sys-color-surface-rgb), 0.8);
  --header-text-color: var(--md-sys-color-on-surface);
  --subtitle-color: var(--md-sys-color-on-surface-variant);
  --link-color: var(--md-sys-color-primary);
  --title-color-bright: var(--md-sys-color-on-surface);

  --note-bg-color: rgba(var(--md-sys-color-surface-rgb), 0.6);
  --note-text-color: var(--md-sys-color-on-surface);

  --button-bg-color: rgba(var(--md-sys-color-primary-rgb), 0.1);
  --button-border-color: rgba(var(--md-sys-color-outline-rgb), 0.4);
  --button-text-color: var(--md-sys-color-on-surface);
  --button-hover-bg-color: rgba(var(--md-sys-color-primary-rgb), 0.2);
  --button-hover-border-color: rgba(var(--md-sys-color-outline-rgb), 0.6);

  --active-tab-bg-color: rgba(var(--md-sys-color-primary-rgb), 0.2);
  --active-tab-text-color: var(--md-sys-color-primary);
  --inactive-tab-text-color: var(--md-sys-color-on-surface-variant);

  --grain-opacity-main: 0.12;
  --grain-opacity-extra: 0.09;
  --base-opacity: 0.35;
  --glow-color: rgba(187, 134, 252, 0.08);

  .animated-background {
    opacity: var(--base-opacity) !important;
  }
  .animated-background::before {
    opacity: var(--grain-opacity-main) !important;
    mix-blend-mode: overlay !important;
  }
  .animated-background::after {
    opacity: 0.85 !important;
  }
  .animated-background .extra-grain {
    opacity: var(--grain-opacity-extra) !important;
  }
}

/* Material Purple Theme Variables - Direct Material 3 values */
body[data-theme="material-purple"] {
  /* Using specific Material Design 3 values for direct application */
  --md-sys-color-primary: rgb(206, 189, 255);
  --md-sys-color-on-primary: rgb(53, 37, 99);
  --md-sys-color-primary-container: rgb(76, 60, 127);
  --md-sys-color-on-primary-container: rgb(235, 221, 255);
  --md-sys-color-secondary: rgb(203, 194, 226);
  --md-sys-color-on-secondary: rgb(51, 45, 69);
  --md-sys-color-secondary-container: rgb(73, 67, 90);
  --md-sys-color-on-secondary-container: rgb(235, 221, 255);
  --md-sys-color-tertiary: rgb(255, 204, 229);
  --md-sys-color-on-tertiary: rgb(84, 27, 63);
  --md-sys-color-tertiary-container: rgb(112, 50, 89);
  --md-sys-color-on-tertiary-container: rgb(255, 216, 237);
  --md-sys-color-error: rgb(255, 180, 171);
  --md-sys-color-on-error: rgb(105, 0, 5);
  --md-sys-color-error-container: rgb(147, 0, 10);
  --md-sys-color-on-error-container: rgb(255, 218, 214);
  --md-sys-color-background: rgb(20, 19, 23);
  --md-sys-color-on-background: rgb(230, 225, 231);
  --md-sys-color-surface: rgb(20, 19, 23);
  --md-sys-color-on-surface: rgb(230, 225, 231);
  --md-sys-color-surface-variant: rgb(73, 69, 78);
  --md-sys-color-on-surface-variant: rgb(202, 196, 209);
  --md-sys-color-outline: rgb(147, 143, 154);
  --md-sys-color-outline-variant: rgb(73, 69, 78);
  --md-sys-color-shadow: rgb(0, 0, 0);
  --md-sys-color-scrim: rgb(0, 0, 0);
  --md-sys-color-inverse-surface: rgb(230, 225, 231);
  --md-sys-color-inverse-on-surface: rgb(50, 47, 51);
  --md-sys-color-inverse-primary: rgb(100, 84, 149);
  --md-sys-color-surface-tint: rgb(206, 189, 255);

  /* Helper for RGB extraction for rgba() functions */
  --md-sys-color-primary-rgb: 206, 189, 255;
  --md-sys-color-on-primary-rgb: 53, 37, 99;
  --md-sys-color-primary-container-rgb: 76, 60, 127;
  --md-sys-color-on-primary-container-rgb: 235, 221, 255;
  --md-sys-color-secondary-rgb: 203, 194, 226;
  --md-sys-color-on-secondary-rgb: 51, 45, 69;
  --md-sys-color-secondary-container-rgb: 73, 67, 90;
  --md-sys-color-on-secondary-container-rgb: 235, 221, 255;
  --md-sys-color-tertiary-rgb: 255, 204, 229;
  --md-sys-color-on-tertiary-rgb: 84, 27, 63;
  --md-sys-color-tertiary-container-rgb: 112, 50, 89;
  --md-sys-color-on-tertiary-container-rgb: 255, 216, 237;
  --md-sys-color-error-rgb: 255, 180, 171;
  --md-sys-color-on-error-rgb: 105, 0, 5;
  --md-sys-color-error-container-rgb: 147, 0, 10;
  --md-sys-color-on-error-container-rgb: 255, 218, 214;
  --md-sys-color-background-rgb: 20, 19, 23;
  --md-sys-color-on-background-rgb: 230, 225, 231;
  --md-sys-color-surface-rgb: 20, 19, 23;
  --md-sys-color-on-surface-rgb: 230, 225, 231;
  --md-sys-color-surface-variant-rgb: 73, 69, 78;
  --md-sys-color-on-surface-variant-rgb: 202, 196, 209;
  --md-sys-color-outline-rgb: 147, 143, 154;
  --md-sys-color-outline-variant-rgb: 73, 69, 78;
  --md-sys-color-inverse-surface-rgb: 230, 225, 231;
  --md-sys-color-inverse-on-surface-rgb: 50, 47, 51;
  --md-sys-color-inverse-primary-rgb: 100, 84, 149;
  --md-sys-color-surface-tint-rgb: 206, 189, 255;
  --md-sys-color-surface-container-low-rgb: 28, 27, 31;
  --md-sys-color-surface-container-rgb: 32, 31, 35;
  --md-sys-color-surface-container-high-rgb: 43, 41, 46;

  /* Custom glassmorphism elements */
  --glass-surface: rgba(var(--md-sys-color-surface-container-rgb), 0.9);
  --glass-border-color: rgba(var(--md-sys-color-outline-rgb), 0.3);
  --glass-shadow-color: rgba(0, 0, 0, 0.8);

  --header-background: rgba(var(--md-sys-color-surface-container-rgb), 0.7);
  --header-text-color: var(--md-sys-color-on-surface);
  --subtitle-color: var(--md-sys-color-on-surface-variant);
  --link-color: var(--md-sys-color-inverse-primary);
  --title-color-bright: var(--md-sys-color-primary);

  --note-bg-color: rgba(var(--md-sys-color-surface-container-low-rgb), 0.7);
  --note-text-color: var(--md-sys-color-on-surface);

  --button-bg-color: rgba(var(--md-sys-color-secondary-container-rgb), 0.4);
  --button-border-color: rgba(var(--md-sys-color-outline-rgb), 0.5);
  --button-text-color: var(--md-sys-color-on-surface);
  --button-hover-bg-color: rgba(
    var(--md-sys-color-secondary-container-rgb),
    0.6
  );
  --button-hover-border-color: rgba(var(--md-sys-color-outline-rgb), 0.8);

  --active-tab-bg-color: rgba(var(--md-sys-color-inverse-primary-rgb), 0.2);
  --active-tab-text-color: var(--md-sys-color-inverse-primary);
  --inactive-tab-text-color: var(--md-sys-color-on-surface-variant);

  --primary-background: var(--md-sys-color-surface);

  /* Specific adjustments for animated background */
  --grain-opacity-main: 0;
  --grain-opacity-extra: 0;
  --base-opacity: 0;
  --glow-color: rgba(0, 0, 0, 0);

  .animated-background {
    opacity: 0 !important;
  }
  .animated-background::before {
    opacity: 0 !important;
  }
  .animated-background::after {
    opacity: 0 !important;
  }
  .animated-background .extra-grain {
    opacity: 0 !important;
  }
}

/* ==========================================================================
Base Styles
========================================================================== */
html {
  box-sizing: border-box;
  scroll-behavior: smooth;
  height: 100%;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

body {
  font-family: "CustomFont", "Google Sans", "Roboto", sans-serif;
  font-size: 18px;
  line-height: 1.2;
  margin: 0;
  color: var(--md-sys-color-on-background);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  background-color: var(--md-sys-color-background);
  width: 100%;
  overflow-x: hidden;
  transition: background-color var(--transition-duration-medium) ease-in-out;
}

/* ==========================================================================
Splash Screen Styles
========================================================================== */
#splash-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--md-sys-color-background);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 999;
  opacity: 1;
  transition: opacity var(--transition-duration-medium) ease-out;
}

#splash-screen.fade-out {
  opacity: 0;
  pointer-events: none;
}

.splash-logo {
  font-family: "HeaderFontStyle", sans-serif;
  font-size: clamp(2rem, 8vw, 60px);
  color: var(--header-text-color);
  text-shadow:
    0 4px 10px rgba(0, 0, 0, 0.6),
    0 0 10px rgba(136, 76, 255, 0.5),
    0 0 20px rgba(170, 102, 255, 0.4),
    0 0 40px rgba(200, 140, 255, 0.8);
  margin-bottom: 10px;
  opacity: 1;
  animation: splashLogoFadeOut var(--transition-duration-medium) ease-out 2.5s
    forwards;
}

.splash-text {
  font-family: "categories", "Google Sans", "Roboto", sans-serif;
  font-size: clamp(1rem, 3vw, 25px);
  color: var(--subtitle-color);
  text-shadow:
    0 1px 3px rgba(0, 0, 0, 0.7),
    0 0 20px rgba(100, 255, 255, 0.15);
  opacity: 1;
  animation: splashTextFadeOut var(--transition-duration-medium) ease-out 2.5s
    forwards;
}

/* ==========================================================================
Animated Background - OPTIMIZED
========================================================================== */
.animated-background::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: url("data:image/svg+xml;utf8,\
  <svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'>\
  <filter id='noiseFilter'>\
    <feTurbulence type='fractalNoise' baseFrequency='0.55' numOctaves='4' stitchTiles='stitch'/>\
  </filter>\
  <rect width='100%' height='100%' filter='url(%23noiseFilter)'/>\
  </svg>");
  mix-blend-mode: overlay;
  opacity: var(--grain-opacity-main);
  animation: shimmerGrain 40s ease-in-out infinite alternate;
  transform-origin: center center;
  pointer-events: none;
  z-index: -5;
  will-change: transform, opacity, background-position;
  filter: contrast(110%) brightness(110%);
}

.animated-background .extra-grain {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  background-image: url("data:image/svg+xml;utf8,\
  <svg xmlns='http://www.w3.org/2000/svg' width='150' height='150'>\
  <filter id='noiseFilter2'>\
    <feTurbulence type='fractalNoise' baseFrequency='0.18' numOctaves='2' stitchTiles='stitch'/>\
  </filter>\
  <rect width='100%' height='100%' filter='url(%23noiseFilter2)'/>\
  </svg>");
  mix-blend-mode: overlay;
  opacity: var(--grain-opacity-extra);
  animation: shimmerGrain 70s linear infinite alternate;
  will-change: opacity, background-position;
  z-index: -4;
  filter: contrast(120%) brightness(105%);
}

/* Keyframes for shimmer grain animation */
@keyframes shimmerGrain {
  0% {
    background-position: 0 0;
    opacity: 0.15;
  }
  50% {
    background-position: 100% 100%;
    opacity: 0.25;
  }
  100% {
    background-position: 0 0;
    opacity: 0.15;
  }
}

/* Shimmer grain animation */
@keyframes shimmerGrain {
  0% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(10px, 10px);
  }
  100% {
    transform: translate(0, 0);
  }
}

/* ==========================================================================
Typography
========================================================================== */
h1 {
  font-family: "HeaderFontStyle", "Google Sans", sans-serif;
  font-size: clamp(2rem, 5vw, 35px);
  text-align: center;
  margin-left: 1rem;
  margin-right: 1rem;
  color: var(--header-text-color);
  text-shadow:
    0 4px 10px rgba(0, 0, 0, 0.6),
    0 0 10px rgba(136, 76, 255, 0.5),
    0 0 20px rgba(170, 102, 255, 0.4),
    0 0 40px rgba(200, 140, 255, 0.8);
}

.subtitle {
  font-family: "categories", "Google Sans", "Roboto", sans-serif;
  font-size: clamp(1rem, 2.5vw, 20px);
  text-align: center;
  display: block;
  color: var(--subtitle-color);
  text-shadow:
    0 1px 3px rgba(0, 0, 0, 0.7),
    0 0 20px rgba(100, 255, 255, 0.15);
}

.subtitleheader {
  font-family: "HeaderSubtitleStyle", "Google Sans", "Roboto Mono", sans-serif;
  font-size: clamp(2rem, 5vw, 35px);
  text-align: center;
  color: var(--header-text-color);
  text-shadow:
    0 4px 10px rgba(0, 0, 0, 0.7),
    0 0 30px rgba(173, 216, 230, 0.4);
  line-height: 1.1;
}

/* ==========================================================================
Layout & Sections - Material Design 3 surfaces and elevation
========================================================================== */
header {
  text-align: center;
  padding: 10px 0 20px;
  position: relative;
  background-color: var(--header-background);
  backdrop-filter: var(--frosted-glass-effect);
  -webkit-backdrop-filter: var(--frosted-glass-effect);
  /* Changed to 16px radius all around for the "squared with corners" look */
  border-radius: var(--border-radius-md); /* 16dp equivalent */
  box-shadow: var(--md-sys-elevation-2);
  border: 1px solid var(--glass-border-color);
  z-index: 2;
  animation: fadeInDown var(--transition-duration-long) ease-out forwards;
  margin: 20px 10px;
}

main {
  flex: 1;
  width: 100%;
  max-width: 900px;
  margin: 20px auto;
  padding: 0 25px;
  position: relative;
  z-index: 2;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp var(--transition-duration-long) ease-out 0.5s forwards;
  padding-bottom: 80px;
}

section[role="tabpanel"] {
  padding: 24px;
  background-color: var(--note-bg-color);
  border-radius: var(--border-radius-md);
  margin-bottom: 24px;
  display: none;
  border: 1px solid var(--glass-border-color);
  box-shadow: var(--md-sys-elevation-1);
  backdrop-filter: var(--frosted-glass-effect);
  -webkit-backdrop-filter: var(--frosted-glass-effect);
  color: var(--md-sys-color-on-surface);
}

section {
  display: none;
  opacity: 0;
  transform: scale(0.98);
  transition:
    opacity var(--transition-duration-medium) ease,
    transform var(--transition-duration-medium) ease;
}

section.active {
  display: block;
  opacity: 1;
  transform: scale(1);
  animation: fadeInScale var(--transition-duration-medium)
    cubic-bezier(0.25, 0.1, 0.25, 1) forwards;
}

.contribute-step {
  margin: 2rem 0;
  padding: 1rem 1.5rem;
  background: rgba(var(--md-sys-color-surface-container-low-rgb), 0.05);
  border-left: 4px solid var(--md-sys-color-primary);
  border-radius: var(--border-radius-sm);
  transition:
    transform var(--transition-duration-short) ease,
    box-shadow var(--transition-duration-short) ease; /* Added transition */
}

.contribute-step:hover {
  transform: translateY(-2px);
  box-shadow: var(--md-sys-elevation-1); /* Subtle lift on hover */
}

.code-box {
  background: rgba(var(--md-sys-color-surface-container-high-rgb), 1);
  color: var(--md-sys-color-on-surface);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
  font-family: "Roboto Mono", monospace;
  margin: 0.5rem 0;
  display: inline-block;
}

.gradient-bg {
  width: 100%;
  height: 100%;
  position: relative;
  background: linear-gradient(
    135deg,
    var(--md-sys-color-background),
    var(--md-sys-color-surface)
  );
  top: 0;
  left: 0;
}

.gradient-bg svg {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
}

.important-notes-section {
  font-family: "ImportantNotes", "Google Sans", "Roboto", sans-serif;
  font-size: clamp(1rem, 2vw, 16px);
  background-color: var(--note-bg-color);
  color: var(--note-text-color);
  border: 1px solid var(--glass-border-color);
  border-radius: var(--border-radius-md);
  padding: 30px;
  margin: 30px auto;
  list-style-type: none;
  box-shadow: var(--md-sys-elevation-1);
  text-align: left;
  max-width: 100%;
  line-height: 1.7;
  backdrop-filter: var(--frosted-glass-effect);
  -webkit-backdrop-filter: var(--frosted-glass-effect);
  transition:
    transform var(--transition-duration-short) ease,
    box-shadow var(--transition-duration-short) ease; /* Added transition */
}

.important-notes-section:hover {
  transform: translateY(-2px);
  box-shadow: var(
    --md-sys-elevation-2
  ); /* Slightly more pronounced lift on hover */
}

.important-notes-section strong {
  font-family: "UberMoveBold", "Google Sans Bold", sans-serif;
  font-size: clamp(1.2rem, 3vw, 24px);
  display: block;
  margin-bottom: 15px;
  color: var(--title-color-bright);
}

.important-notes-section hr.divider {
  border: 0;
  border-top: 1px solid rgba(var(--md-sys-color-outline-rgb), 0.2);
  margin: 20px 0;
}

.important-notes-section a {
  color: var(--link-color);
  text-decoration: underline;
  transition: color var(--transition-duration-short) ease; /* Added transition */
}

.important-notes-section a:hover {
  color: var(--md-sys-color-on-background); /* More contrast on hover */
}

/* Contribute Section Specific Styles - Adapted to Material 3 */
.contribute-section {
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  padding: 2rem;
  border-radius: var(--border-radius-md);
  font-family: "Roboto", sans-serif;
}

.contribute-section h2 {
  color: var(--md-sys-color-primary);
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.contribute-step h3 {
  color: var(--md-sys-color-secondary);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.contribute-section p,
.contribute-section li {
  font-size: 0.95rem;
  line-height: 1.6;
}

.contribute-section ul {
  list-style: disc;
  padding-left: 1.5rem;
}

.contribute-section a {
  color: var(--md-sys-color-primary);
  text-decoration: underline;
  transition: color var(--transition-duration-short) ease;
}

.contribute-section a:hover {
  color: var(--md-sys-color-on-surface); /* More contrast on hover */
}

.code-box {
  background-color: rgba(var(--md-sys-color-surface-container-high-rgb), 1);
  color: var(--md-sys-color-on-surface-variant);
  border: 1px solid var(--md-sys-color-outline-variant);
  padding: 0.75rem;
  border-radius: var(--border-radius-sm);
  font-family: "Roboto Mono", monospace;
  font-size: 0.9rem;
  margin-top: 0.5rem;
  white-space: pre-wrap;
  word-break: break-all;
}

.note {
  background-color: rgba(var(--md-sys-color-surface-container-low-rgb), 1);
  border-left: 4px solid var(--md-sys-color-secondary);
  padding: 0.75rem;
  border-radius: var(--border-radius-sm);
  margin-top: 1rem;
  transition:
    transform var(--transition-duration-short) ease,
    box-shadow var(--transition-duration-short) ease; /* Added transition */
}

.note:hover {
  transform: translateY(-2px);
  box-shadow: var(--md-sys-elevation-1);
}

/* ==========================================================================
Animations - Use defined transition durations
========================================================================== */
@keyframes gradientFlow {
  0% {
    background-position: 0% 0%;
  }
  25% {
    background-position: 100% 0%;
  }
  50% {
    background-position: 0% 100%;
  }
  75% {
    background-position: 100% 100%;
  }
  100% {
    background-position: 0% 0%;
  }
}

@keyframes zoomPulse {
  0% {
    transform: scale(1) rotate(0deg);
    filter: brightness(0.25);
  }
  20% {
    transform: scale(1.08) rotate(0.2deg);
    filter: brightness(0.6);
  }
  50% {
    transform: scale(1.2) rotate(-0.3deg);
    filter: brightness(1.1);
  }
  80% {
    transform: scale(1.05) rotate(0.2deg);
    filter: brightness(0.95);
  }
  100% {
    transform: scale(1) rotate(0deg);
    filter: brightness(1);
  }
}

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

@keyframes hueShift {
  0% {
    filter: hue-rotate(0deg);
  }
  100% {
    filter: hue-rotate(360deg);
  }
}

@keyframes moveInCircle {
  0% {
    transform: rotate(0deg);
  }
  50% {
    transform: rotate(180deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes moveVertical {
  0% {
    transform: translateY(-50%);
  }
  50% {
    transform: translateY(50%);
  }
  100% {
    transform: translateY(-50%);
  }
}
@keyframes moveHorizontal {
  0% {
    transform: translateX(-50%) translateY(-10%);
  }
  50% {
    transform: translateX(50%) translateY(10%);
  }
  100% {
    transform: translateX(-50%) translateY(-10%);
  }
}

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

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

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

@keyframes splashFadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

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

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

/* ==========================================================================
Navigation - Material Design 3 Bottom Navigation Bar
========================================================================== */
.bottom-navigation {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 95%;
  max-width: 615px;
  height: 120px;
  /* Set to 55% opaque */
  background-color: rgba(var(--md-sys-color-surface-rgb), 0.55);
  backdrop-filter: var(--frosted-glass-effect);
  -webkit-backdrop-filter: var(--frosted-glass-effect);
  border: 0.25px solid var(--glass-border-color);
  box-shadow: var(--md-sys-elevation-3);
  z-index: 100;
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 0 25px;
  border-radius: var(--border-radius-xl);
  margin-bottom: 15px;
  transition:
    background-color var(--transition-duration-medium) ease,
    box-shadow var(--transition-duration-medium) ease;
}

.nav-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 15px;
  min-width: 80px;
  color: var(--inactive-tab-text-color);
  font-family: "navTabs", "Google Sans Medium", sans-serif;
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition:
    color var(--transition-duration-short) ease,
    background-color var(--transition-duration-short) ease,
    transform var(--transition-duration-short) ease,
    box-shadow var(--transition-duration-short) ease;
  border-radius: var(--border-radius-lg);
  -webkit-tap-highlight-color: transparent;
}

.nav-tab .material-symbols-outlined {
  font-size: 28px;
  margin-bottom: 5px;
  color: inherit;
  transition: color var(--transition-duration-short) ease;
}

.nav-tab.active {
  color: var(--active-tab-text-color);
  background-color: var(--active-tab-bg-color);
  transform: translateY(-4px) scale(1.05);
  margin: 0 8px;
  box-shadow: var(--md-sys-elevation-2);
  /* The active indicator is less round now, using the smaller radius */
  border-radius: var(--border-radius-md);
}

.nav-tab:hover:not(.active) {
  background-color: rgba(var(--md-sys-color-primary-rgb), 0.1);
  transform: translateY(-2px);
}

.nav-tab:active {
  background-color: rgba(var(--md-sys-color-primary-rgb), 0.3);
  transform: translateY(0);
}

/* Theme options styles */
.theme-options {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-top: 20px;
}

.theme-option-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 15px;
  border: 1px solid var(--glass-border-color);
  border-radius: var(--border-radius-md);
  background-color: var(--note-bg-color);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--md-sys-elevation-1);
  transition:
    transform var(--transition-duration-short) ease,
    box-shadow var(--transition-duration-short) ease; /* Added transition */
}

.theme-option-group:hover {
  transform: translateY(-2px);
  box-shadow: var(--md-sys-elevation-2);
}

.theme-option-group h3 {
  font-family: "UberMoveBold", "Google Sans Bold", sans-serif;
  font-size: clamp(1.1rem, 2.8vw, 22px);
  color: var(--title-color-bright);
  margin-top: 0;
  margin-bottom: 10px;
}

.theme-buttons-container {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.theme-button {
  background-color: var(--button-bg-color);
  border: 1px solid var(--button-border-color);
  border-radius: var(--border-radius-sm);
  color: var(--button-text-color);
  padding: 10px 15px;
  font-size: clamp(0.9rem, 2vw, 16px);
  cursor: pointer;
  transition:
    background-color var(--transition-duration-short) ease,
    border-color var(--transition-duration-short) ease,
    transform var(--transition-duration-short) ease,
    box-shadow var(--transition-duration-short) ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.theme-button:hover {
  background-color: var(--button-hover-bg-color);
  border-color: var(--button-hover-border-color);
  transform: translateY(-2px);
  box-shadow: var(--md-sys-elevation-1);
}

.theme-button.active-theme {
  background-color: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border-color: var(--md-sys-color-primary);
  box-shadow: var(--md-sys-elevation-2);
  font-weight: bold;
  transform: translateY(-2px) scale(1.02); /* Subtle pop for active theme */
}

/* ==========================================================================
Media Queries - Mobile Optimizations
========================================================================== */
@media (max-width: 768px) {
  body {
    padding-bottom: 90px;
  }

  main {
    padding: 0 15px 90px;
  }

  .bottom-navigation {
    height: 100px;
    padding: 0 10px;
    gap: 10px;
    max-width: calc(100% - 15px);
    margin-bottom: 10px;
    border-radius: var(--border-radius-lg);
  }

  .nav-tab {
    font-size: 13px;
    padding: 8px 10px;
    min-width: 65px;
  }

  .nav-tab .material-symbols-outlined {
    font-size: 24px;
  }

  .nav-tab.active {
    margin: 0 4px;
    border-radius: var(--border-radius-md);
  }

  .theme-option-group h3 {
    font-size: 20px;
  }

  .theme-button {
    font-size: 14px;
    padding: 8px 12px;
  }
}