:root {
    /* Apple-inspired Premium Color System */
    --md-primary: #007AFF;
    --md-primary-light: #E6F2FF;
    --md-primary-dark: #0056CC;
    --md-secondary: #5856D6;
    --md-secondary-light: #F0F0FF;
    --md-tertiary: #FF2D55;
    --md-tertiary-light: #FFE6EC;
    --md-error: #FF3B30;
    --md-error-light: #FFE6E5;
    --md-success: #34C759;
    --md-success-light: #E6F7EB;
    --md-warning: #FF9500;
    --md-warning-light: #FFF4E6;
    --md-info: #5AC8FA;
    --md-info-light: #E6F7FF;

    /* Premium Theme Presets */
    --theme-sierra-blue: #007AFF;
    --theme-graphite: #8E8E93;
    --theme-gold: #FFD700;
    --theme-silver: #C0C0C0;
    --theme-space-black: #1C1C1E;
    --theme-alpine-green: #597D5A;
    --theme-deep-purple: #5856D6;
    --theme-product-red: #FF3B30;

    /* ===== ENHANCED DYNAMIC THEME SYSTEM ===== */
    
    /* Primary Colors */
    --dynamic-primary: var(--md-primary);
    --dynamic-primary-light: var(--md-primary-light);
    --dynamic-primary-dark: var(--md-primary-dark);
    --dynamic-on-primary: #FFFFFF;
    
    /* Surface Colors - Core Backgrounds */
    --dynamic-surface: #FFFFFF;
    --dynamic-on-surface: #000000;
    --dynamic-surface-variant: #F2F2F7;
    --dynamic-on-surface-variant: #6D6D72;
    --dynamic-background: #FFFFFF;
    --dynamic-elevated-surface: #FFFFFF;
    
    /* Border & Outline Colors */
    --dynamic-outline: #C6C6C8;
    --dynamic-outline-variant: #E5E5EA;
    --dynamic-divider: rgba(0, 0, 0, 0.12);
    
    /* Overlay & State Colors */
    --dynamic-scrim: rgba(0, 0, 0, 0.4);
    --dynamic-overlay: rgba(0, 0, 0, 0.08);
    --dynamic-hover: rgba(0, 0, 0, 0.04);
    --dynamic-focus: rgba(0, 122, 255, 0.3);
    --dynamic-pressed: rgba(0, 0, 0, 0.12);
    
    /* Text Colors */
    --dynamic-text-primary: #000000;
    --dynamic-text-secondary: #6D6D72;
    --dynamic-text-tertiary: #8E8E93;
    --dynamic-text-disabled: rgba(0, 0, 0, 0.38);
    
    /* Inverse Colors (for dark surfaces) */
    --dynamic-inverse-surface: #1C1C1E;
    --dynamic-inverse-on-surface: #FFFFFF;
    --dynamic-inverse-primary: #0056CC;

    /* Enhanced Elevation System */
    --elevation-0: 0 0 0 0 rgba(0, 0, 0, 0);
    --elevation-1: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --elevation-2: 0 3px 6px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.12);
    --elevation-3: 0 10px 20px rgba(0, 0, 0, 0.15), 0 3px 6px rgba(0, 0, 0, 0.10);
    --elevation-4: 0 15px 25px rgba(0, 0, 0, 0.15), 0 5px 10px rgba(0, 0, 0, 0.05);
    --elevation-5: 0 20px 40px rgba(0, 0, 0, 0.2);

    /* Enhanced Border Radius */
    --radius-small: 8px;
    --radius-medium: 12px;
    --radius-large: 16px;
    --radius-xlarge: 20px;
    --radius-xxlarge: 28px;
    --radius-round: 50%;

    /* Enhanced Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-xxl: 48px;

    /* Animation & Physics */
    --duration-extra-short: 150ms;
    --duration-short: 250ms;
    --duration-medium: 350ms;
    --duration-long: 500ms;
    --duration-extra-long: 700ms;

    /* Spring Physics Parameters */
    --spring-bouncy: cubic-bezier(0.34, 1.56, 0.64, 1);
    --spring-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --spring-sharp: cubic-bezier(0.4, 0, 0.6, 1);

    /* Layout & Dimensions */
    --sidebar-width: 280px;
    --sidebar-width-collapsed: 80px;
    --top-app-bar-height: 72px;
    --bottom-nav-height: 80px;
}

/* ===== THEME VARIANTS ===== */

/* Sierra Blue Theme (Default) - Enhanced */
[data-theme="sierra-blue"] {
    --dynamic-primary: #007AFF;
    --dynamic-primary-light: rgba(0, 122, 255, 0.08);
    --dynamic-primary-dark: #0056CC;
    --dynamic-surface: #FFFFFF;
    --dynamic-surface-variant: #F8FAFF;
    --dynamic-background: #F8FAFF;
    --dynamic-elevated-surface: #FFFFFF;
    --dynamic-on-surface: #000000;
    --dynamic-on-surface-variant: #6D6D72;
}

/* Graphite Theme - Professional Gray Scale */
[data-theme="graphite"] {
    --dynamic-primary: #8E8E93;
    --dynamic-primary-light: rgba(142, 142, 147, 0.08);
    --dynamic-primary-dark: #6D6D70;
    --dynamic-surface: #FFFFFF;
    --dynamic-surface-variant: #F8F8F8;
    --dynamic-background: #F8F8F8;
    --dynamic-elevated-surface: #FFFFFF;
    --dynamic-on-surface: #1C1C1E;
    --dynamic-on-surface-variant: #6D6D72;
    --dynamic-outline: #D1D1D6;
}

/* Gold Theme - Warm & Premium */
[data-theme="gold"] {
    --dynamic-primary: #D4AF37;
    --dynamic-primary-light: rgba(212, 175, 55, 0.08);
    --dynamic-primary-dark: #B8941F;
    --dynamic-surface: #FFFFFF;
    --dynamic-surface-variant: #FFFDF5;
    --dynamic-background: #FFFDF5;
    --dynamic-elevated-surface: #FFFFFF;
    --dynamic-on-surface: #1C1C1E;
    --dynamic-on-surface-variant: #6D6D72;
    --dynamic-outline: #E8E2CC;
}

/* Silver Theme - Cool Metallic */
[data-theme="silver"] {
    --dynamic-primary: #C0C0C0;
    --dynamic-primary-light: rgba(192, 192, 192, 0.08);
    --dynamic-primary-dark: #A8A8A8;
    --dynamic-surface: #FFFFFF;
    --dynamic-surface-variant: #FAFAFA;
    --dynamic-background: #FAFAFA;
    --dynamic-elevated-surface: #FFFFFF;
    --dynamic-on-surface: #1C1C1E;
    --dynamic-on-surface-variant: #6D6D72;
    --dynamic-outline: #E5E5E5;
}

/* Alpine Green Theme - Natural & Calm */
[data-theme="alpine-green"] {
    --dynamic-primary: #597D5A;
    --dynamic-primary-light: rgba(89, 125, 90, 0.08);
    --dynamic-primary-dark: #4A6C4B;
    --dynamic-surface: #FFFFFF;
    --dynamic-surface-variant: #F8FBF8;
    --dynamic-background: #F8FBF8;
    --dynamic-elevated-surface: #FFFFFF;
    --dynamic-on-surface: #1C1C1E;
    --dynamic-on-surface-variant: #6D6D72;
    --dynamic-outline: #DDE8DD;
}

/* Deep Purple Theme - Creative & Bold */
[data-theme="deep-purple"] {
    --dynamic-primary: #5856D6;
    --dynamic-primary-light: rgba(88, 86, 214, 0.08);
    --dynamic-primary-dark: #4745C4;
    --dynamic-surface: #FFFFFF;
    --dynamic-surface-variant: #F8F8FF;
    --dynamic-background: #F8F8FF;
    --dynamic-elevated-surface: #FFFFFF;
    --dynamic-on-surface: #1C1C1E;
    --dynamic-on-surface-variant: #6D6D72;
    --dynamic-outline: #E5E5FF;
}

/* Product Red Theme - Energetic & Attention-Grabbing */
[data-theme="product-red"] {
    --dynamic-primary: #FF3B30;
    --dynamic-primary-light: rgba(255, 59, 48, 0.08);
    --dynamic-primary-dark: #D70015;
    --dynamic-surface: #FFFFFF;
    --dynamic-surface-variant: #FFF8F7;
    --dynamic-background: #FFF8F7;
    --dynamic-elevated-surface: #FFFFFF;
    --dynamic-on-surface: #1C1C1E;
    --dynamic-on-surface-variant: #6D6D72;
    --dynamic-outline: #FFE5E3;
}

/* Space Black Theme - PERMANENT DARK MODE */
[data-theme="space-black"] {
    /* Primary Colors - Space Black Blue */
    --dynamic-primary: #0A84FF;
    --dynamic-primary-light: rgba(10, 132, 255, 0.15);
    --dynamic-primary-dark: #409CFF;
    --dynamic-on-primary: #FFFFFF;
    
    /* Surface Colors - Permanent Dark */
    --dynamic-surface: #1C1C1E;
    --dynamic-on-surface: #FFFFFF;
    --dynamic-surface-variant: #2C2C2E;
    --dynamic-on-surface-variant: #98989F;
    --dynamic-background: #000000;
    --dynamic-elevated-surface: #2C2C2E;
    
    /* Border & Outline Colors - Dark */
    --dynamic-outline: #38383A;
    --dynamic-outline-variant: #464648;
    --dynamic-divider: rgba(255, 255, 255, 0.12);
    
    /* Overlay & State Colors - Dark */
    --dynamic-scrim: rgba(0, 0, 0, 0.6);
    --dynamic-overlay: rgba(255, 255, 255, 0.08);
    --dynamic-hover: rgba(255, 255, 255, 0.04);
    --dynamic-focus: rgba(10, 132, 255, 0.3);
    --dynamic-pressed: rgba(255, 255, 255, 0.12);
    
    /* Text Colors - Dark */
    --dynamic-text-primary: #FFFFFF;
    --dynamic-text-secondary: #98989F;
    --dynamic-text-tertiary: #6C6C70;
    --dynamic-text-disabled: rgba(255, 255, 255, 0.38);
    
    /* Inverse Colors */
    --dynamic-inverse-surface: #FFFFFF;
    --dynamic-inverse-on-surface: #000000;
    --dynamic-inverse-primary: #0056CC;
    
    /* Enhanced Elevation for Dark Theme */
    --elevation-1: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.4);
    --elevation-2: 0 3px 6px rgba(0, 0, 0, 0.4), 0 2px 4px rgba(0, 0, 0, 0.3);
    --elevation-3: 0 10px 20px rgba(0, 0, 0, 0.4), 0 3px 6px rgba(0, 0, 0, 0.3);
    --elevation-4: 0 15px 25px rgba(0, 0, 0, 0.45), 0 5px 10px rgba(0, 0, 0, 0.3);
    --elevation-5: 0 20px 40px rgba(0, 0, 0, 0.5);
}

/* Enhanced Dark Mode System (for other themes) */
[data-color-scheme="dark"]:not([data-theme="space-black"]) {
    /* Primary Colors - Adjusted for Dark Mode */
    --dynamic-primary: #0A84FF;
    --dynamic-primary-dark: #409CFF;
    --dynamic-primary-light: rgba(10, 132, 255, 0.15);
    
    /* Surface Colors - Dark Mode */
    --dynamic-surface: #1C1C1E;
    --dynamic-on-surface: #FFFFFF;
    --dynamic-surface-variant: #2C2C2E;
    --dynamic-on-surface-variant: #98989F;
    --dynamic-background: #000000;
    --dynamic-elevated-surface: #2C2C2E;
    
    /* Border & Outline Colors - Dark Mode */
    --dynamic-outline: #38383A;
    --dynamic-outline-variant: #464648;
    --dynamic-divider: rgba(255, 255, 255, 0.12);
    
    /* Overlay & State Colors - Dark Mode */
    --dynamic-scrim: rgba(0, 0, 0, 0.6);
    --dynamic-overlay: rgba(255, 255, 255, 0.08);
    --dynamic-hover: rgba(255, 255, 255, 0.04);
    --dynamic-focus: rgba(10, 132, 255, 0.3);
    --dynamic-pressed: rgba(255, 255, 255, 0.12);
    
    /* Text Colors - Dark Mode */
    --dynamic-text-primary: #FFFFFF;
    --dynamic-text-secondary: #98989F;
    --dynamic-text-tertiary: #6C6C70;
    --dynamic-text-disabled: rgba(255, 255, 255, 0.38);
    
    /* Enhanced Elevation for Dark Mode */
    --elevation-1: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.4);
    --elevation-2: 0 3px 6px rgba(0, 0, 0, 0.4), 0 2px 4px rgba(0, 0, 0, 0.3);
    --elevation-3: 0 10px 20px rgba(0, 0, 0, 0.4), 0 3px 6px rgba(0, 0, 0, 0.3);
    --elevation-4: 0 15px 25px rgba(0, 0, 0, 0.45), 0 5px 10px rgba(0, 0, 0, 0.3);
    --elevation-5: 0 20px 40px rgba(0, 0, 0, 0.5);
}

/* Light Mode (Default) - Exclude Space Black */
[data-color-scheme="light"]:not([data-theme="space-black"]) {
    /* Reset to light theme variables (already defined in :root) */
}

/* Space Black Theme IGNORES color-scheme changes */
[data-theme="space-black"][data-color-scheme="light"],
[data-theme="space-black"][data-color-scheme="dark"] {
    /* Space Black stays consistent - no changes needed as it has its own permanent values */
}

/* Theme-specific dark mode adjustments (exclude space-black) */
[data-theme="sierra-blue"][data-color-scheme="dark"]:not([data-theme="space-black"]) {
    --dynamic-primary: #0A84FF;
    --dynamic-primary-light: rgba(10, 132, 255, 0.15);
}

[data-theme="graphite"][data-color-scheme="dark"]:not([data-theme="space-black"]) {
    --dynamic-primary: #8E8E93;
    --dynamic-primary-light: rgba(142, 142, 147, 0.15);
}

[data-theme="gold"][data-color-scheme="dark"]:not([data-theme="space-black"]) {
    --dynamic-primary: #FFD700;
    --dynamic-primary-light: rgba(255, 215, 0, 0.15);
}

[data-theme="silver"][data-color-scheme="dark"]:not([data-theme="space-black"]) {
    --dynamic-primary: #E8E8E8;
    --dynamic-primary-light: rgba(232, 232, 232, 0.15);
}

[data-theme="alpine-green"][data-color-scheme="dark"]:not([data-theme="space-black"]) {
    --dynamic-primary: #5DBE7D;
    --dynamic-primary-light: rgba(93, 190, 125, 0.15);
}

[data-theme="deep-purple"][data-color-scheme="dark"]:not([data-theme="space-black"]) {
    --dynamic-primary: #7D83FF;
    --dynamic-primary-light: rgba(125, 131, 255, 0.15);
}

[data-theme="product-red"][data-color-scheme="dark"]:not([data-theme="space-black"]) {
    --dynamic-primary: #FF6961;
    --dynamic-primary-light: rgba(255, 105, 97, 0.15);
}


/* ===== COMPONENT SPECIFIC STYLES ===== */

/* Search Page */
.search-page {
    background: var(--dynamic-background);
    color: var(--dynamic-on-surface);
}

.search-header {
    background: var(--dynamic-surface);
    border-bottom: 1px solid var(--dynamic-outline);
}

.search-input-container {
    background: var(--dynamic-surface-variant);
    border: 1px solid var(--dynamic-outline);
}

/* Modal Backdrops */
.modal-backdrop {
    background: var(--dynamic-scrim);
}

.modal {
    background: var(--dynamic-surface);
    border: 1px solid var(--dynamic-outline);
    box-shadow: var(--elevation-4);
}

/* Cards */
.card {
    background: var(--dynamic-surface);
    border: 1px solid var(--dynamic-outline);
    box-shadow: var(--elevation-1);
}

/* Sidebar */
.sidebar {
    background: var(--dynamic-surface);
    border-right: 1px solid var(--dynamic-outline);
}

/* Top App Bar */
.top-app-bar {
    background: var(--dynamic-surface);
    border-bottom: 1px solid var(--dynamic-outline);
}

/* Focus Mode */
.timer-card {
    background: linear-gradient(135deg, var(--dynamic-primary), var(--dynamic-primary-dark));
    color: var(--dynamic-on-primary);
}

/* Fullscreen Timer */
.fullscreen-timer {
    background: linear-gradient(135deg, var(--dynamic-primary), var(--dynamic-primary-dark));
    color: var(--dynamic-on-primary);
}

/* Break Mode */
.break-mode {
    background: linear-gradient(135deg, var(--md-success), var(--md-success-light));
    color: var(--dynamic-on-surface);
}

/* Form Elements */
.text-field, .select-field {
    background: var(--dynamic-surface);
    border: 1px solid var(--dynamic-outline);
    color: var(--dynamic-on-surface);
}

.text-field:focus, .select-field:focus {
    border-color: var(--dynamic-primary);
    box-shadow: 0 0 0 2px var(--dynamic-focus);
}

/* Buttons */
.button-filled {
    background: var(--dynamic-primary);
    color: var(--dynamic-on-primary);
}

.button-outlined {
    background: transparent;
    border: 2px solid var(--dynamic-outline);
    color: var(--dynamic-primary);
}

.button-text {
    background: transparent;
    color: var(--dynamic-primary);
}

/* Toggle Switch */
.toggle-switch input:checked + .toggle-slider {
    background: var(--dynamic-primary);
}

/* Chips */
.chip {
    background: var(--dynamic-surface-variant);
    color: var(--dynamic-on-surface-variant);
    border: 1px solid var(--dynamic-outline-variant);
}

/* Empty States */
.empty-state {
    background: var(--dynamic-surface-variant);
    color: var(--dynamic-on-surface-variant);
}

/* Stats Cards */
.stat-card {
    background: var(--dynamic-surface);
    border: 1px solid var(--dynamic-outline);
    box-shadow: var(--elevation-1);
}

/* Enhanced Accessibility */
@media (prefers-contrast: high) {
    :root {
        --dynamic-outline: #000000;
        --dynamic-divider: #000000;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    :root {
        --duration-extra-short: 0ms;
        --duration-short: 0ms;
        --duration-medium: 0ms;
        --duration-long: 0ms;
        --duration-extra-long: 0ms;
    }
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Poppins', 'Roboto', sans-serif;
    background-color: var(--dynamic-background);
    color: var(--dynamic-on-surface);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--duration-medium) var(--spring-smooth);
}

/* Enhanced Layout System */
.app-container {
    display: flex;
    min-height: 100vh;
    position: relative;
    background-color: var(--dynamic-background);
}

/* Premium Enhanced Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--dynamic-surface);
    border-right: 1px solid var(--dynamic-outline);
    display: flex;
    flex-direction: column;
    transition: all var(--duration-medium) var(--spring-smooth);
    z-index: 100;
    box-shadow: var(--elevation-1);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    backdrop-filter: blur(20px);
    background-color: var(--dynamic-surface);
}

.sidebar.collapsed {
    width: var(--sidebar-width-collapsed);
}

.sidebar-header {
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--dynamic-outline-variant);
    background-color: var(--dynamic-surface);
    min-height: var(--top-app-bar-height);
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-md);
    background-color: var(--dynamic-surface);
}

.nav-item {
    display: flex;
    align-items: center;
    padding: var(--space-md);
    border-radius: var(--radius-large);
    margin-bottom: var(--space-xs);
    cursor: pointer;
    transition: all var(--duration-short) var(--spring-smooth);
    color: var(--dynamic-on-surface-variant);
    text-decoration: none;
    background-color: transparent;
    border: 1px solid transparent;
}

.nav-item:hover {
    background-color: var(--dynamic-surface-variant);
    color: var(--dynamic-on-surface);
    border-color: var(--dynamic-outline-variant);
}

.nav-item.active {
    background-color: var(--dynamic-primary-light);
    color: var(--dynamic-primary);
    border-color: var(--dynamic-primary);
}

.nav-item .material-symbols-outlined {
    margin-right: var(--space-md);
    font-size: 20px;
    transition: margin-right var(--duration-short) var(--spring-smooth);
}

.sidebar.collapsed .nav-text {
    opacity: 0;
    width: 0;
    transition: all var(--duration-short) var(--spring-smooth);
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: var(--space-md);
}

.sidebar.collapsed .nav-item .material-symbols-outlined {
    margin-right: 0;
}

/* Enhanced Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--duration-medium) var(--spring-smooth);
    background-color: var(--dynamic-background);
    min-height: 100vh;
}

.main-content.expanded {
    margin-left: var(--sidebar-width-collapsed);
}

/* Premium Top App Bar */
.top-app-bar {
    height: var(--top-app-bar-height);
    background-color: var(--dynamic-surface);
    display: flex;
    align-items: center;
    padding: 0 var(--space-lg);
    border-bottom: 2px solid var(--dynamic-outline-variant);
    box-shadow: var(--elevation-1);
    z-index: 50;
    position: sticky;
    top: 0;
    backdrop-filter: blur(20px);
    background-color: var(--dynamic-surface);
}

.top-app-bar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-left: auto;
}

/* Enhanced Content Area */
.content-area {
    flex: 1;
    padding: var(--space-lg);
    overflow-y: auto;
    background-color: var(--dynamic-background);
}

.page {
    display: none;
    animation: fadeInUp var(--duration-medium) var(--spring-smooth);
}

.page.active {
    display: block;
}

/* Premium Search Page */
.search-page {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--dynamic-background);
    z-index: 200;
    display: none;
    flex-direction: column;
}

.search-page.active {
    display: flex;
}

.search-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--dynamic-outline-variant);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background-color: var(--dynamic-surface);
    backdrop-filter: blur(20px);
}

.search-input-container {
    flex: 1;
    position: relative;
}

.search-input {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-large);
    border: 1px solid var(--dynamic-outline);
    background-color: var(--dynamic-surface);
    color: var(--dynamic-on-surface);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--duration-short) var(--spring-smooth);
    padding-left: 48px;
}

.search-input:focus {
    outline: none;
    border-color: var(--dynamic-primary);
    box-shadow: 0 0 0 2px var(--dynamic-primary-light);
    background-color: var(--dynamic-surface);
}

.search-icon {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--dynamic-on-surface-variant);
}

.search-results {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-lg);
    background-color: var(--dynamic-background);
}

.search-section {
    margin-bottom: var(--space-xl);
}

.search-section-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--dynamic-on-surface);
}

.recommendation-item {
    display: flex;
    align-items: center;
    padding: var(--space-md);
    border-radius: var(--radius-large);
    margin-bottom: var(--space-sm);
    cursor: pointer;
    transition: all var(--duration-short) var(--spring-smooth);
    background-color: var(--dynamic-surface);
    border: 1px solid var(--dynamic-outline-variant);
}

.recommendation-item:hover {
    background-color: var(--dynamic-surface-variant);
    border-color: var(--dynamic-outline);
    transform: translateY(-2px);
    box-shadow: var(--elevation-1);
}

.recommendation-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-round);
    background-color: var(--dynamic-primary-light);
    color: var(--dynamic-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--space-md);
}

.recommendation-content {
    flex: 1;
}

.recommendation-title {
    font-weight: 500;
    margin-bottom: var(--space-xs);
    color: var(--dynamic-on-surface);
}

.recommendation-description {
    font-size: 0.9rem;
    color: var(--dynamic-on-surface-variant);
}

/* Enhanced Cards */
.card {
    background-color: var(--dynamic-surface);
    border-radius: var(--radius-xlarge);
    padding: var(--space-lg);
    box-shadow: var(--elevation-1);
    border: 1px solid var(--dynamic-outline-variant);
    transition: all var(--duration-medium) var(--spring-smooth);
    margin-bottom: var(--space-lg);
    backdrop-filter: blur(10px);
}

.card:hover {
    box-shadow: var(--elevation-2);
    transform: translateY(-2px);
    border-color: var(--dynamic-outline);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

/* Enhanced FAB */
.fab-container {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    z-index: 90;
}

.fab {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-xxlarge);
    background: linear-gradient(135deg, var(--dynamic-primary) 0%, var(--dynamic-primary-dark) 100%);
    color: var(--dynamic-on-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--elevation-4);
    cursor: pointer;
    transition: all var(--duration-medium) var(--spring-bouncy);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.fab::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--duration-short) var(--spring-smooth);
}

.fab:hover {
    box-shadow: var(--elevation-5);
    transform: translateY(-4px) scale(1.05);
}

.fab:hover::before {
    opacity: 1;
}

.fab:active {
    transform: translateY(-1px) scale(0.98);
    box-shadow: var(--elevation-3);
}

.fab .material-symbols-outlined {
    font-size: 28px;
}

/* Enhanced Task Items */
.task-item {
    display: flex;
    align-items: flex-start;
    padding: var(--space-lg);
    border-radius: var(--radius-xlarge);
    background-color: var(--dynamic-surface);
    margin-bottom: var(--space-md);
    box-shadow: var(--elevation-1);
    border: 1px solid var(--dynamic-outline-variant);
    transition: all var(--duration-medium) var(--spring-smooth);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.task-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--dynamic-primary);
    opacity: 0;
    transition: opacity var(--duration-short) var(--spring-smooth);
}

.task-item:hover {
    box-shadow: var(--elevation-2);
    transform: translateY(-2px);
    border-color: var(--dynamic-outline);
}

.task-item:hover::before {
    opacity: 1;
}

.task-item.pinned {
    border-color: var(--dynamic-primary);
    background-color: var(--dynamic-primary-light);
}

.task-item.pinned::before {
    opacity: 1;
}

.task-item.completed {
    opacity: 0.7;
    background-color: var(--dynamic-surface-variant);
    border-color: var(--dynamic-outline-variant);
}

.task-checkbox {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-round);
    border: 2px solid var(--dynamic-outline);
    margin-right: var(--space-md);
    margin-top: 2px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-short) var(--spring-smooth);
    position: relative;
    background-color: var(--dynamic-surface);
}

.task-item.completed .task-checkbox {
    background-color: var(--dynamic-primary);
    border-color: var(--dynamic-primary);
}

.task-checkbox::after {
    content: '';
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg) scale(0);
    transition: transform var(--duration-short) var(--spring-bouncy);
}

.task-item.completed .task-checkbox::after {
    transform: rotate(45deg) scale(1);
}

.task-content {
    flex: 1;
}

.task-title {
    font-weight: 500;
    margin-bottom: var(--space-xs);
    font-size: 1.1rem;
    color: var(--dynamic-on-surface);
}

.task-item.completed .task-title {
    text-decoration: line-through;
    color: var(--dynamic-on-surface-variant);
}

.task-description {
    color: var(--dynamic-on-surface-variant);
    margin-bottom: var(--space-sm);
    font-size: 0.9rem;
}

.task-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.task-priority {
    padding: 4px 8px;
    border-radius: var(--radius-small);
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid transparent;
}

.priority-low {
    background-color: var(--md-success-light);
    color: var(--md-success);
    border-color: rgba(52, 199, 89, 0.3);
}

.priority-medium {
    background-color: var(--md-warning-light);
    color: var(--md-warning);
    border-color: rgba(255, 149, 0, 0.3);
}

.priority-high {
    background-color: var(--md-error-light);
    color: var(--md-error);
    border-color: rgba(255, 59, 48, 0.3);
}

.task-category {
    font-size: 0.75rem;
    color: var(--dynamic-on-surface-variant);
    background-color: var(--dynamic-surface-variant);
    padding: 4px 8px;
    border-radius: var(--radius-small);
    border: 1px solid var(--dynamic-outline-variant);
}

.task-time {
    font-size: 0.75rem;
    color: var(--dynamic-on-surface-variant);
    display: flex;
    align-items: center;
}

.task-time .material-symbols-outlined {
    font-size: 16px;
    margin-right: 4px;
}

.task-actions {
    display: flex;
    gap: var(--space-xs);
    opacity: 0;
    transition: opacity var(--duration-short) var(--spring-smooth);
}

.task-item:hover .task-actions {
    opacity: 1;
}

.task-action {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--dynamic-surface-variant);
    color: var(--dynamic-on-surface-variant);
    cursor: pointer;
    transition: all var(--duration-short) var(--spring-smooth);
    border: 1px solid transparent;
}

.task-action:hover {
    background-color: var(--dynamic-primary-light);
    color: var(--dynamic-primary);
    border-color: var(--dynamic-primary);
}

/* Enhanced Modal System */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--dynamic-scrim);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-medium) var(--spring-smooth);
    backdrop-filter: blur(5px);
}

.modal-backdrop.active {
    opacity: 1;
    pointer-events: all;
}

.modal {
    background-color: var(--dynamic-surface);
    border-radius: var(--radius-xxlarge);
    padding: var(--space-xl);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    box-shadow: var(--elevation-5);
    transform: scale(0.9) translateY(20px);
    opacity: 0;
    transition: all var(--duration-medium) var(--spring-bouncy);
    overflow-y: auto;
    border: 1px solid var(--dynamic-outline-variant);
    backdrop-filter: blur(20px);
}

.modal-backdrop.active .modal {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--dynamic-on-surface-variant);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-round);
    transition: all var(--duration-short) var(--spring-smooth);
    background-color: var(--dynamic-surface-variant);
    border: 1px solid var(--dynamic-outline-variant);
}

.modal-close:hover {
    background-color: var(--dynamic-primary-light);
    color: var(--dynamic-primary);
    border-color: var(--dynamic-primary);
}

/* Enhanced Form Elements */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 500;
    color: var(--dynamic-on-surface);
}

.text-field {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-large);
    border: 1px solid var(--dynamic-outline);
    background-color: var(--dynamic-surface);
    color: var(--dynamic-on-surface);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--duration-short) var(--spring-smooth);
}

.text-field:focus {
    outline: none;
    border-color: var(--dynamic-primary);
    box-shadow: 0 0 0 2px var(--dynamic-primary-light);
    background-color: var(--dynamic-surface);
}

.text-area {
    min-height: 120px;
    resize: vertical;
}

.select-field {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-large);
    border: 1px solid var(--dynamic-outline);
    background-color: var(--dynamic-surface);
    color: var(--dynamic-on-surface);
    font-family: inherit;
    font-size: 1rem;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=US-ASCII,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'><path fill='%23666' d='M2 0L0 2h4zm0 5L0 3h4z'/></svg>");
    background-repeat: no-repeat;
    background-position: right var(--space-lg) center;
    background-size: 12px;
}

[data-theme="space-black"] .select-field {
    background-image: url("data:image/svg+xml;charset=US-ASCII,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'><path fill='%23fff' d='M2 0L0 2h4zm0 5L0 3h4z'/></svg>");
}

/* Enhanced Buttons */
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-large);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--duration-short) var(--spring-smooth);
    border: none;
    font-family: inherit;
    font-size: 0.9rem;
    gap: var(--space-sm);
    border: 1px solid transparent;
}

.button-filled {
    background: linear-gradient(135deg, var(--dynamic-primary) 0%, var(--dynamic-primary-dark) 100%);
    color: var(--dynamic-on-primary);
    border-color: var(--dynamic-primary-dark);
}

.button-filled:hover {
    box-shadow: var(--elevation-2);
    transform: translateY(-2px);
}

.button-tonal {
    background-color: var(--dynamic-primary-light);
    color: var(--dynamic-primary);
    border: 1px solid var(--dynamic-primary-light);
}

.button-outlined {
    background-color: transparent;
    color: var(--dynamic-primary);
    border: 1px solid var(--dynamic-outline);
}

.button-outlined:hover {
    background-color: var(--dynamic-surface-variant);
    border-color: var(--dynamic-primary);
}

/* Enhanced Chip System */
.chip {
    display: inline-flex;
    align-items: center;
    background-color: var(--dynamic-surface-variant);
    color: var(--dynamic-on-surface-variant);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-large);
    font-size: 0.8rem;
    margin-right: var(--space-xs);
    margin-bottom: var(--space-xs);
    cursor: pointer;
    transition: all var(--duration-short) var(--spring-smooth);
    border: 1px solid var(--dynamic-outline-variant);
}

.chip:hover {
    background-color: var(--dynamic-primary-light);
    color: var(--dynamic-primary);
    border-color: var(--dynamic-primary);
}

.suggestion-chip {
    display: inline-flex;
    align-items: center;
    background-color: var(--dynamic-primary-light);
    color: var(--dynamic-primary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-large);
    margin-right: var(--space-sm);
    margin-bottom: var(--space-sm);
    cursor: pointer;
    transform: translateY(10px);
    opacity: 0;
    transition: all var(--duration-medium) var(--spring-bouncy);
    border: 1px solid var(--dynamic-primary-light);
}

.suggestion-chip.visible {
    transform: translateY(0);
    opacity: 1;
}

/* Enhanced Timer */
.timer-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-xl);
    border-radius: var(--radius-xxlarge);
    background: linear-gradient(135deg, var(--dynamic-primary) 0%, var(--dynamic-primary-dark) 100%);
    color: white;
    margin-bottom: var(--space-lg);
    box-shadow: var(--elevation-3);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.timer-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.timer-display {
    font-size: 3.5rem;
    font-weight: 300;
    margin: var(--space-lg) 0;
    font-family: 'Inter', monospace;
    position: relative;
}

.timer-controls {
    display: flex;
    gap: var(--space-md);
    position: relative;
}

.timer-progress {
    width: 100%;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    margin-top: var(--space-lg);
    overflow: hidden;
    position: relative;
}

.timer-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
    width: 0%;
    transition: width 1s linear;
    border-radius: 3px;
}

/* Enhanced Settings */
.settings-section {
    margin-bottom: var(--space-xl);
    background-color: var(--dynamic-surface);
    border-radius: var(--radius-xlarge);
    padding: var(--space-lg);
    border: 1px solid var(--dynamic-outline-variant);
}

.settings-section-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--dynamic-on-surface);
    display: flex;
    align-items: center;
}

.settings-section-title .material-symbols-outlined {
    margin-right: var(--space-sm);
    font-size: 24px;
}

.settings-option {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--dynamic-outline-variant);
    background-color: var(--dynamic-surface);
}

.settings-option:last-child {
    border-bottom: none;
}

.settings-option-label {
    flex: 1;
}

.settings-option-title {
    font-weight: 500;
    margin-bottom: var(--space-xs);
    color: var(--dynamic-on-surface);
}

.settings-option-description {
    font-size: 0.9rem;
    color: var(--dynamic-on-surface-variant);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--dynamic-outline-variant);
    transition: all var(--duration-short) var(--spring-smooth);
    border-radius: 34px;
    border: 1px solid var(--dynamic-outline);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 3px;
    background-color: white;
    transition: all var(--duration-short) var(--spring-smooth);
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

input:checked+.toggle-slider {
    background-color: var(--dynamic-primary);
    border-color: var(--dynamic-primary);
}

input:checked+.toggle-slider:before {
    transform: translateX(24px);
}

/* Theme Selector */
.theme-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--space-md);
}

.theme-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-md);
    border-radius: var(--radius-large);
    cursor: pointer;
    transition: all var(--duration-short) var(--spring-smooth);
    border: 2px solid var(--dynamic-outline-variant);
    background-color: var(--dynamic-surface);
}

.theme-option:hover {
    background-color: var(--dynamic-surface-variant);
    border-color: var(--dynamic-outline);
}

.theme-option.active {
    border-color: var(--dynamic-primary);
    background-color: var(--dynamic-primary-light);
}

.theme-preview {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-large);
    margin-bottom: var(--space-sm);
    background: linear-gradient(135deg, var(--theme-color) 0%, var(--theme-color-secondary) 100%);
    border: 1px solid var(--dynamic-outline-variant);
}

.theme-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--dynamic-on-surface);
}

/* Enhanced Analytics */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.stat-card {
    background: linear-gradient(135deg, var(--dynamic-surface) 0%, var(--dynamic-surface-variant) 100%);
    border-radius: var(--radius-xlarge);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    box-shadow: var(--elevation-1);
    transition: all var(--duration-medium) var(--spring-smooth);
    border: 1px solid var(--dynamic-outline-variant);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--elevation-3);
    border-color: var(--dynamic-outline);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin: var(--space-sm) 0;
    color: var(--dynamic-primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--dynamic-on-surface-variant);
}

/* Enhanced Animation System */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes springScale {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }

    70% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes springSlideUp {
    0% {
        transform: translateY(20px);
        opacity: 0;
    }

    70% {
        transform: translateY(-5px);
    }

    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes microBounce {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 122, 255, 0.4);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(0, 122, 255, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(0, 122, 255, 0);
    }
}

@keyframes fadeOut {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes shimmer {
    0% {
        background-position: -468px 0;
    }

    100% {
        background-position: 468px 0;
    }
}

/* Animation Classes */
.spring-scale {
    animation: springScale var(--duration-medium) var(--spring-bouncy);
}

.spring-slide-up {
    animation: springSlideUp var(--duration-medium) var(--spring-bouncy);
}

.micro-bounce {
    animation: microBounce var(--duration-short) var(--spring-bouncy);
}

.pulse {
    animation: pulse 2s infinite;
}

.fade-out {
    animation: fadeOut var(--duration-long) forwards;
}

.slide-in-right {
    animation: slideInRight var(--duration-medium) var(--spring-smooth);
}

/* Enhanced Responsive Design */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .main-content.expanded {
        margin-left: 0;
    }

    .fab-container {
        bottom: var(--space-lg);
        right: var(--space-lg);
    }
}

@media (max-width: 768px) {
    .top-app-bar {
        padding: 0 var(--space-md);
    }

    .content-area {
        padding: var(--space-md);
    }

    .card {
        padding: var(--space-md);
    }

    .timer-display {
        font-size: 2.5rem;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .theme-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }

    .modal {
        padding: var(--space-lg);
        margin: var(--space-md);
        width: calc(100% - var(--space-md) * 2);
    }
}

@media (max-width: 480px) {
    .timer-controls {
        flex-direction: column;
        width: 100%;
    }

    .timer-controls .button {
        width: 100%;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .task-meta {
        flex-direction: column;
        align-items: flex-start;
    }

    .search-header {
        padding: var(--space-md);
    }

    .fab {
        width: 56px;
        height: 56px;
    }

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

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.mb-0 {
    margin-bottom: 0;
}

.mt-0 {
    margin-top: 0;
}

.hidden {
    display: none;
}

.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.w-100 {
    width: 100%;
}

/* Loading States */
.loading {
    background: linear-gradient(90deg, var(--dynamic-surface-variant) 25%, var(--dynamic-surface) 50%, var(--dynamic-surface-variant) 75%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite linear;
}

/* Empty States */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-xxl);
    text-align: center;
    color: var(--dynamic-on-surface-variant);
    background-color: var(--dynamic-surface);
    border-radius: var(--radius-xlarge);
    border: 1px solid var(--dynamic-outline-variant);
    margin: var(--space-lg) 0;
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    opacity: 0.5;
}

.empty-state-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
    color: var(--dynamic-on-surface);
}

.empty-state-description {
    max-width: 400px;
    margin-bottom: var(--space-lg);
}

/* Typography */
.headline-small {
    font-size: 1.5rem;
    font-weight: 600;
}

.title-large {
    font-size: 1.375rem;
    font-weight: 600;
}

.body-medium {
    font-size: 1rem;
    font-weight: 400;
}

/* Enhanced Scrollbars */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dynamic-surface-variant);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--dynamic-outline);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--dynamic-on-surface-variant);
}

[data-theme="space-black"] ::-webkit-scrollbar-track {
    background: var(--dynamic-surface);
}

[data-theme="space-black"] ::-webkit-scrollbar-thumb {
    background: var(--dynamic-outline-variant);
}

/* Focus States for Accessibility */
button:focus-visible,
.nav-item:focus-visible,
.task-action:focus-visible {
    outline: 2px solid var(--dynamic-primary);
    outline-offset: 2px;
}

/* High Contrast Support */
@media (prefers-contrast: high) {
    :root {
        --dynamic-outline: #000000;
        --dynamic-outline-variant: #000000;
    }

    [data-theme="space-black"] {
        --dynamic-outline: #FFFFFF;
        --dynamic-outline-variant: #FFFFFF;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}


/* Additional styles for new features */
.stats-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.stats-modal.active {
    display: flex;
}

.stats-modal-content {
    background: var(--dynamic-surface);
    border-radius: 16px;
    padding: var(--space-lg);
    width: 90%;
    max-width: 400px;
    box-shadow: var(--elevation-5);
}

.stats-modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.stats-modal-stat {
    text-align: center;
    padding: var(--space-md);
    border-radius: 12px;
    background: var(--dynamic-surface-variant);
}

.fullscreen-timer {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--dynamic-primary), var(--dynamic-primary-dark));
    z-index: 2000;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
}

.fullscreen-timer.active {
    display: flex;
}

.fullscreen-timer-display {
    font-size: 5rem;
    font-weight: 700;
    margin-bottom: var(--space-xl);
}

.fullscreen-timer-controls {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.focus-music-container {
    margin-top: var(--space-lg);
    width: 80%;
    max-width: 400px;
}

.music-controls {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-top: var(--space-md);
}

.motivational-quote {
    margin-top: var(--space-lg);
    text-align: center;
    font-style: italic;
    max-width: 80%;
}

.suggestion-carousel {
    display: flex;
    overflow-x: auto;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    scroll-snap-type: x mandatory;
}

.suggestion-carousel::-webkit-scrollbar {
    display: none;
}

.suggestion-card {
    flex: 0 0 auto;
    width: 200px;
    background: var(--dynamic-surface-variant);
    border-radius: 12px;
    padding: var(--space-md);
    scroll-snap-align: start;
    cursor: pointer;
}

.blurred-text {
    filter: blur(5px);
    transition: filter 0.3s ease;
    cursor: pointer;
}

.blurred-text.revealed {
    filter: none;
}

.confirmation-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1500;
    align-items: center;
    justify-content: center;
}

.confirmation-modal.active {
    display: flex;
}

.confirmation-content {
    background: var(--dynamic-surface);
    border-radius: 16px;
    padding: var(--space-lg);
    width: 90%;
    max-width: 400px;
    box-shadow: var(--elevation-5);
    text-align: center;
}

.confirmation-timer {
    margin: var(--space-md) 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dynamic-primary);
}

.confirmation-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-top: var(--space-lg);
}

.import-export-section {
    margin-top: var(--space-xl);
}

.file-input-container {
    position: relative;
    margin-bottom: var(--space-md);
}

.file-input {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.file-input-label {
    display: block;
    padding: var(--space-md);
    background: var(--dynamic-surface-variant);
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    border: 1px dashed var(--dynamic-outline);
}

.greeting-editable {
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.greeting-editable:hover {
    background-color: var(--dynamic-surface-variant);
}

.greeting-input {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--dynamic-outline);
    border-radius: 8px;
    background: var(--dynamic-surface);
    color: var(--dynamic-on-surface);
    font-size: 1rem;
}

.quick-action-buttons {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.quick-action-button {
    padding: 8px 12px;
    border-radius: 8px;
    background: var(--dynamic-surface-variant);
    border: none;
    color: var(--dynamic-on-surface);
    cursor: pointer;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: background-color 0.2s;
}

.quick-action-button:hover {
    background: var(--dynamic-primary-light);
}

@media (max-width: 768px) {
    .stats-grid {
        display: none;
    }

    .stats-modal-button {
        display: block;
        width: 100%;
        margin-bottom: var(--space-lg);
    }
}

@media (min-width: 769px) {
    .stats-modal-button {
        display: none;
    }
}
/* ===== ENHANCED ANALYTICS STYLES ===== */
.analytics-period-selector {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
    align-items: center;
}

.period-button {
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--dynamic-outline);
    background: var(--dynamic-surface);
    border-radius: var(--radius-medium);
    cursor: pointer;
    transition: all var(--duration-short) var(--spring-smooth);
    font-size: var(--font-size-sm);
    color: var(--dynamic-on-surface-variant);
    font-weight: var(--font-weight-medium);
    position: relative;
    overflow: hidden;
}

.period-button:hover {
    background: var(--dynamic-surface-variant);
    border-color: var(--dynamic-outline-variant);
    transform: translateY(-1px);
    box-shadow: var(--elevation-1);
}

.period-button.active {
    background: var(--dynamic-primary);
    color: var(--dynamic-on-primary);
    border-color: var(--dynamic-primary);
    box-shadow: var(--elevation-1);
}

.period-button.active:hover {
    background: var(--dynamic-primary-dark);
    border-color: var(--dynamic-primary-dark);
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.analytics-card {
    background: var(--dynamic-surface);
    border-radius: var(--radius-large);
    padding: var(--space-lg);
    box-shadow: var(--elevation-1);
    border: 1px solid var(--dynamic-outline-variant);
    transition: all var(--duration-medium) var(--spring-smooth);
    position: relative;
    overflow: hidden;
}

.analytics-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        color-mix(in srgb, var(--dynamic-primary) 2%, transparent) 0%,
        transparent 50%,
        color-mix(in srgb, var(--dynamic-primary) 1%, transparent) 100%);
    opacity: 0;
    transition: opacity var(--duration-medium) var(--spring-smooth);
    pointer-events: none;
}

.analytics-card:hover {
    box-shadow: var(--elevation-2);
    transform: translateY(-2px);
    border-color: var(--dynamic-outline);
}

.analytics-card:hover::before {
    opacity: 1;
}

.analytics-card-header {
    display: flex;
    justify-content: between;
    align-items: flex-start;
    margin-bottom: var(--space-md);
    gap: var(--space-md);
}

.analytics-card-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--dynamic-on-surface-variant);
    margin: 0;
    flex: 1;
}

.analytics-card-value {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--dynamic-primary);
    margin: var(--space-sm) 0;
    line-height: 1;
}

.analytics-card-change {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.trend-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
}

.trend-up {
    color: var(--md-success);
    font-weight: var(--font-weight-medium);
}

.trend-down {
    color: var(--md-error);
    font-weight: var(--font-weight-medium);
}

.trend-neutral {
    color: var(--dynamic-on-surface-variant);
    font-weight: var(--font-weight-medium);
}

.completion-chart-container {
    height: 200px;
    margin-top: var(--space-lg);
    position: relative;
}

/* Real-time task counter animation */
.task-counter {
    transition: all var(--duration-short) var(--spring-smooth);
    display: inline-block;
}

.task-counter.updated {
    animation: counterPop var(--duration-medium) var(--spring-bouncy);
}

@keyframes counterPop {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

.analytics-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
    color: var(--dynamic-on-surface-variant);
    flex-direction: column;
    gap: var(--space-md);
}

.analytics-loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--dynamic-outline-variant);
    border-top: 3px solid var(--dynamic-primary);
    border-radius: var(--radius-round);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.analytics-empty-state {
    text-align: center;
    padding: var(--space-xl);
    color: var(--dynamic-on-surface-variant);
    background: var(--dynamic-surface);
    border-radius: var(--radius-large);
    border: 1px solid var(--dynamic-outline-variant);
}

.analytics-comparison {
    font-size: var(--font-size-xs);
    color: var(--dynamic-on-surface-variant);
    margin-top: var(--space-xs);
    line-height: 1.4;
}

/* ===== ENHANCED ANALYTICS INSIGHTS ===== */
.analytics-insights {
    padding: var(--space-lg);
    border-top: 1px solid var(--dynamic-outline-variant);
    background: var(--dynamic-surface-variant);
    border-radius: 0 0 var(--radius-large) var(--radius-large);
}

.insight-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--dynamic-outline-variant);
    transition: all var(--duration-short) var(--spring-smooth);
}

.insight-item:hover {
    background: var(--dynamic-surface);
    margin: 0 calc(-1 * var(--space-md));
    padding: var(--space-md);
    border-radius: var(--radius-medium);
}

.insight-item:last-child {
    border-bottom: none;
}

.insight-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
}

.insight-icon.positive {
    background: var(--md-success-light);
    color: var(--md-success);
}

.insight-icon.warning {
    background: var(--md-warning-light);
    color: var(--md-warning);
}

.insight-icon.info {
    background: var(--md-info-light);
    color: var(--md-info);
}

.insight-content {
    flex: 1;
    min-width: 0;
}

.insight-title {
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-xs);
    color: var(--dynamic-on-surface);
    font-size: var(--font-size-sm);
}

.insight-description {
    color: var(--dynamic-on-surface-variant);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
}

/* ===== ENHANCED LOGO STYLES ===== */

/* ===== ENHANCED BREAK MODE STYLES ===== */
.break-mode {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--dynamic-primary) 0%, var(--dynamic-primary-dark) 100%);
    color: var(--dynamic-on-primary);
    z-index: var(--z-index-modal);
    display: none;
z-index: 110;
    flex-direction: column;
    animation: fadeInUp var(--duration-medium) var(--spring-smooth);
}

.break-mode.active {
    display: flex;
}

.break-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.break-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-xl);
    gap: var(--space-xl);
    text-align: center;
}

.breathing-animation {
    width: 200px;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.breathing-circle {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-round);
    background: rgba(255, 255, 255, 0.2);
    border: 3px solid rgba(255, 255, 255, 0.5);
    animation: breathe 4s infinite var(--spring-smooth);
    position: relative;
}

.breathing-circle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    border-radius: var(--radius-round);
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

@keyframes breathe {
    0%, 100% {
        transform: scale(1);
        opacity: 0.7;
    }
    50% {
        transform: scale(1.5);
        opacity: 1;
    }
}

.break-quote {
    font-size: var(--font-size-xl);
    text-align: center;
    max-width: 400px;
    line-height: var(--line-height-relaxed);
    font-style: italic;
    opacity: 0.9;
}

.break-timer {
    font-size: 50px;
    font-weight: 900;
    font-family: 'Poppins', sans-serif;
    letter-spacing: 2px;
    text-align: center;
}

.break-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

/* Breathing Animation States */
.breathing-animation.breathing-in .breathing-circle {
    animation: breathe-in 4s infinite var(--spring-smooth);
}

.breathing-animation.breathing-out .breathing-circle {
    animation: breathe-out 4s infinite var(--spring-smooth);
}

@keyframes breathe-in {
    0% {
        transform: scale(1);
        opacity: 0.7;
    }
    50% {
        transform: scale(1.5);
        opacity: 1;
    }
    100% {
        transform: scale(1);
        opacity: 0.7;
    }
}

@keyframes breathe-out {
    0% {
        transform: scale(1.5);
        opacity: 1;
    }
    50% {
        transform: scale(1);
        opacity: 0.7;
    }
    100% {
        transform: scale(1.5);
        opacity: 1;
    }
}

/* ===== ENHANCED TASK ITEMS ===== */
.task-item.completed .task-title {
    text-decoration: line-through;
    opacity: 0.7;
    color: var(--dynamic-on-surface-variant);
}

.task-item.pinned {
    border-left: 4px solid var(--dynamic-primary);
    background: var(--dynamic-primary-light);
}

.task-item.pinned::before {
    opacity: 1;
    transform: scaleY(1);
}

/* ===== ENHANCED FORM STYLES ===== */
.form-hint {
    font-size: var(--font-size-xs);
    color: var(--dynamic-on-surface-variant);
    margin-top: var(--space-xs);
    line-height: var(--line-height-tight);
}

/* ===== ENHANCED TYPOGRAPHY UTILITIES ===== */
.font-small {
    font-size: var(--font-size-sm);
}

.font-medium {
    font-size: var(--font-size-md);
}

.font-large {
    font-size: var(--font-size-lg);
}

/* ===== RESPONSIVE ENHANCEMENTS ===== */
@media (max-width: 1024px) {
    .logo-text {
        display: block;
    }
    
    .analytics-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--space-md);
    }
    
    .break-content {
        padding: var(--space-lg);
        gap: var(--space-lg);
    }
    
    .break-quote {
        font-size: var(--font-size-lg);
        max-width: 350px;
    }
    
}

@media (min-width: 1025px) {
    .sidebar.collapsed .logo-text {
        display: none;
    }
}

@media (max-width: 768px) {
    .analytics-period-selector {
        justify-content: center;
    }
    
    .period-button {
        flex: 1;
        min-width: 80px;
        text-align: center;
    }
    
    .analytics-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .analytics-card {
        padding: var(--space-md);
    }
    
    .break-header {
        padding: var(--space-md);
    }
    
    .break-content {
        padding: var(--space-lg);
        gap: var(--space-lg);
    }
    
    .breathing-animation {
        width: 150px;
        height: 150px;
    }
    
    .breathing-circle {
        width: 80px;
        height: 80px;
    }
    
    .break-quote {
        font-size: var(--font-size-md);
        max-width: 300px;
    }
    
}

@media (max-width: 480px) {
    .analytics-period-selector {
        flex-direction: column;
        align-items: stretch;
    }
    
    .period-button {
        flex: none;
    }
    
    .insight-item {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }
    
    .break-actions {
        flex-direction: column;
        width: 100%;
        max-width: 200px;
    }
    
    .break-actions .button {
        width: 100%;
    }
}

/* ===== DARK MODE ENHANCEMENTS ===== */
[data-theme="space-black"] .analytics-card,
[data-color-scheme="dark"] .analytics-card {
    background: var(--dynamic-surface);
    border-color: var(--dynamic-outline-variant);
}

[data-theme="space-black"] .period-button,
[data-color-scheme="dark"] .period-button {
    background: var(--dynamic-surface);
    border-color: var(--dynamic-outline);
    color: var(--dynamic-on-surface-variant);
}

[data-theme="space-black"] .period-button:hover,
[data-color-scheme="dark"] .period-button:hover {
    background: var(--dynamic-surface-variant);
    border-color: var(--dynamic-outline-variant);
}

[data-theme="space-black"] .analytics-insights,
[data-color-scheme="dark"] .analytics-insights {
    background: var(--dynamic-surface-variant);
    border-color: var(--dynamic-outline-variant);
}

/* ===== ACCESSIBILITY ENHANCEMENTS ===== */
@media (prefers-reduced-motion: reduce) {
    .breathing-circle,
    .breathing-animation.breathing-in .breathing-circle,
    .breathing-animation.breathing-out .breathing-circle {
        animation: none;
    }
    
    .task-counter.updated {
        animation: none;
    }
    
    .analytics-loading-spinner {
        animation: none;
        border-top-color: transparent;
    }
}

/* Focus states for better accessibility */
.period-button:focus-visible {
    outline: 2px solid var(--dynamic-primary);
    outline-offset: 2px;
}

.analytics-card:focus-within {
    box-shadow: 
        0 0 0 2px var(--dynamic-primary-light),
        var(--elevation-2);
}

.insight-item:focus-within {
    background: var(--dynamic-surface-variant);
    outline: 2px solid var(--dynamic-primary);
    outline-offset: 2px;
}