/* Material You Dark Theme - MaterialLite */
:root {
    /* Material You Color Palette */
    --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-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: #FFD8E4;
    
    --md-sys-color-error: #F2B8B5;
    --md-sys-color-on-error: #601410;
    --md-sys-color-error-container: #8C1D18;
    --md-sys-color-on-error-container: #F9DEDC;
    
    --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: #938F99;
    --md-sys-color-outline-variant: #49454F;
    
    /* Enhanced Expressive Colors */
    --md-sys-color-expressive-primary: #FF6B9D;
    --md-sys-color-expressive-secondary: #4ECDC4;
    --md-sys-color-expressive-accent: #45B7D1;
    --md-sys-color-expressive-warm: #FF9A56;
    --md-sys-color-expressive-cool: #A78BFA;
    
    /* Spacing */
    --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-xxl: 48px;
    
    /* Border Radius */
    --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;
    
    /* Elevation */
    --md-sys-elevation-level-0: 0px 0px 0px 0px rgba(0, 0, 0, 0.12);
    --md-sys-elevation-level-1: 0px 1px 3px 1px rgba(0, 0, 0, 0.15);
    --md-sys-elevation-level-2: 0px 2px 6px 2px rgba(0, 0, 0, 0.15);
    --md-sys-elevation-level-3: 0px 4px 8px 3px rgba(0, 0, 0, 0.15);
    --md-sys-elevation-level-4: 0px 6px 10px 4px rgba(0, 0, 0, 0.15);
    --md-sys-elevation-level-5: 0px 8px 12px 6px rgba(0, 0, 0, 0.15);
    
    /* Typography */
    --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-medium-size: 45px;
    --md-sys-typescale-display-medium-line-height: 52px;
    --md-sys-typescale-display-medium-weight: 400;
    
    --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-headline-large-size: 32px;
    --md-sys-typescale-headline-large-line-height: 40px;
    --md-sys-typescale-headline-large-weight: 400;
    
    --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-small-size: 24px;
    --md-sys-typescale-headline-small-line-height: 32px;
    --md-sys-typescale-headline-small-weight: 400;
    
    --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-medium-size: 16px;
    --md-sys-typescale-title-medium-line-height: 24px;
    --md-sys-typescale-title-medium-weight: 500;
    
    --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-body-large-size: 16px;
    --md-sys-typescale-body-large-line-height: 24px;
    --md-sys-typescale-body-large-weight: 400;
    
    --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-small-size: 12px;
    --md-sys-typescale-body-small-line-height: 16px;
    --md-sys-typescale-body-small-weight: 400;
    
    --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-medium-size: 12px;
    --md-sys-typescale-label-medium-line-height: 16px;
    --md-sys-typescale-label-medium-weight: 500;
    
    --md-sys-typescale-label-small-size: 11px;
    --md-sys-typescale-label-small-line-height: 16px;
    --md-sys-typescale-label-small-weight: 500;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--md-sys-color-background);
    color: var(--md-sys-color-on-background);
    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);
    scroll-behavior: smooth;
}

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--md-sys-spacing-md) var(--md-sys-spacing-lg);
    background-color: var(--md-sys-color-surface);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    box-shadow: var(--md-sys-elevation-level-1);
    z-index: 100;
}

.header-content {
    display: flex;
    flex-direction: column;
    gap: var(--md-sys-spacing-xs);
}

.app-title {
    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);
    color: var(--md-sys-color-primary);
    background: linear-gradient(135deg, var(--md-sys-color-primary), var(--md-sys-color-tertiary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.app-subtitle {
    font-size: var(--md-sys-typescale-body-medium-size);
    line-height: var(--md-sys-typescale-body-medium-line-height);
    color: var(--md-sys-color-on-surface-variant);
}

.header-actions {
    display: flex;
    gap: var(--md-sys-spacing-sm);
}

/* Main Content */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

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

.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--md-sys-color-surface-variant);
    border-radius: var(--md-sys-shape-corner-small);
}

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

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

/* Focus Styles */
*:focus {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 2px;
}

/* Selection */
::selection {
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
}