/* Enhanced CSS Variables for Comprehensive Design System */
:root {
    /* Primary Color System */
    --primary: #FF264C;
    --primary-rgb: 255, 38, 76;
    --primary-dark: #E01E3E;
    --primary-light: #FF4D6B;
    --primary-50: rgba(255, 38, 76, 0.05);
    --primary-100: rgba(255, 38, 76, 0.1);
    --primary-200: rgba(255, 38, 76, 0.2);
    --primary-300: rgba(255, 38, 76, 0.3);
    --primary-500: #FF264C;
    --primary-700: #E01E3E;
    --primary-900: #C41B3A;

    /* Background System */
    --dark: #0b090a;
    --dark-card: #161318;
    --dark-hover: #1f1b24;
    --dark-surface: #1a1625;
    --dark-elevated: #201d2a;
    --light: #ffffff;

    /* Glass Morphism System */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-bg-hover: rgba(255, 255, 255, 0.08);
    --glass-bg-active: rgba(255, 255, 255, 0.12);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(255, 255, 255, 0.15);
    --glass-border-active: rgba(255, 255, 255, 0.2);
    --dark-overlay: rgba(0, 0, 0, 0.15);

    /* Typography System */
    --text-primary: #ffffff;
    --text-secondary: #e5e7eb;
    --text-muted: #9ca3af;
    --text-subtle: #6b7280;
    --text-disabled: #4b5563;

    /* Status Colors */
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --success-border: rgba(16, 185, 129, 0.3);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --warning-border: rgba(245, 158, 11, 0.3);
    --error: #ef4444;
    --error-bg: rgba(239, 68, 68, 0.1);
    --error-border: rgba(239, 68, 68, 0.3);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.1);
    --info-border: rgba(59, 130, 246, 0.3);

    /* Difficulty Colors */
    --difficulty-easy: #10b981;
    --difficulty-medium: #f59e0b;
    --difficulty-hard: #ef4444;
    --difficulty-expert: #8b5cf6;
    --difficulty-legendary: #f97316;

    /* Progress System */
    --progress-bg: rgba(255, 255, 255, 0.1);
    --progress-fill: linear-gradient(135deg, var(--primary), var(--primary-dark));
    --progress-complete: linear-gradient(135deg, var(--success), #059669);

    /* Layout & Spacing */
    --border-gray: #2A2F3A;
    --section-divider: linear-gradient(90deg, transparent, rgba(255, 38, 76, 0.3), transparent);
    --card-padding: 16px;
    --card-gap: 12px;
    --card-min-height: 220px;
    --grid-columns: repeat(auto-fill, minmax(320px, 1fr));

    /* Shadows & Effects */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.25);
    --shadow-light: 0 4px 24px rgba(0, 0, 0, 0.15);
    --shadow-medium: 0 8px 32px rgba(0, 0, 0, 0.25);
    --shadow-heavy: 0 16px 48px rgba(0, 0, 0, 0.4);
    --glow-primary: 0 0 20px rgba(255, 38, 76, 0.3);
    --glow-success: 0 0 20px rgba(16, 185, 129, 0.3);

    /* Spacing Scale */
    --spacing-0: 0;
    --spacing-1: 0.125rem;
    --spacing-2: 0.25rem;
    --spacing-3: 0.375rem;
    --spacing-4: 0.5rem;
    --spacing-5: 0.625rem;
    --spacing-6: 0.75rem;
    --spacing-8: 1rem;
    --spacing-10: 1.25rem;
    --spacing-12: 1.5rem;
    --spacing-14: 1.75rem;
    --spacing-16: 2rem;
    --spacing-20: 2.5rem;
    --spacing-24: 3rem;
    --spacing-32: 4rem;
    --spacing-40: 5rem;
    --spacing-48: 6rem;
    --spacing-64: 8rem;

    /* Legacy spacing for backward compatibility */
    --spacing-xs: var(--spacing-2);
    --spacing-sm: var(--spacing-4);
    --spacing-md: var(--spacing-8);
    --spacing-lg: var(--spacing-12);
    --spacing-xl: var(--spacing-16);
    --spacing-2xl: var(--spacing-24);
    --spacing-3xl: var(--spacing-32);

    /* Border Radius Scale */
    --radius-none: 0;
    --radius-sm: 0.125rem;
    --radius-base: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    --radius-full: 9999px;

    /* Legacy border radius for backward compatibility */
    --border-radius-sm: var(--radius-lg);
    --border-radius-md: var(--radius-xl);
    --border-radius-lg: var(--radius-2xl);
    --border-radius-xl: var(--radius-3xl);

    /* Animation & Transition */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --animation-duration: 0.3s;

    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

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

body {
    background: linear-gradient(135deg, var(--dark) 0%, #161a1d 50%, #0f1419 100%);
    background-attachment: fixed;
    color: var(--light);
    font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

/* Scoped container for quests */
.quest-container {
    min-height: 100vh;
    padding: 1.5rem 0.5rem 2rem 0.5rem;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    position: relative;
    gap:10px;
    background: none;
}

/* Enhanced Glass Card Effect */
.quest-container .glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.quest-container .glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    z-index: 1;
}

.quest-container .glass-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-heavy), var(--glow-primary);
    transform: translateY(-2px);
}

/* Section Dividers */
.quest-container .section-divider {
    margin: 1.5rem 0 1.5rem 0;
    height: 1px;
    background: var(--section-divider);
    position: relative;
}

.quest-container .section-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: var(--glow-primary);
}

/* Compact Main Banner */
.quest-container .main-banner {


    position: relative;

}


.quest-container .header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    width: 100%;
}

.quest-container .header-content .reset-timer {
    margin-left: auto;
}

.quest-container .header-text {
    text-align: left;
}

.quest-container .subheader {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.quest-container .header-left {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
}

.quest-container .header-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
    box-shadow: var(--glow-primary);
    position: relative;
    overflow: hidden;
}

.quest-container .header-text h1 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.quest-container .header-text p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 400;
    line-height: 1.4;
}

.quest-container .header-stats {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--dark-overlay);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-gray);
}

.quest-container .stats-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.quest-container .stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.85rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-sm);
    transition: all 0.3s ease;
}

.quest-container .stat-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.quest-container .stat-item i {
    font-size: 1rem;
}

.quest-container .stat-value {
    color: white;
    font-weight: 600;
    font-size: 1rem;
}

.quest-container .reset-timer {
    background: linear-gradient(135deg, var(--dark-card), var(--dark-hover));
    border: 2px solid var(--primary);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.85rem;
    box-shadow: var(--shadow-light);
    position: relative;
    overflow: hidden;
}

.quest-container .reset-timer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 38, 76, 0.1), transparent);
    transform: translateX(-100%);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }

    50% {
        transform: translateX(100%);
    }

    100% {
        transform: translateX(100%);
    }
}

.quest-container .timer-value {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    color: var(--primary);
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.05em;
}

/* Header Progress Section (in main banner) */
.quest-container .header-progress {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.quest-container .header-progress .stat-card {
    padding: var(--spacing-sm);
}

.quest-container .progress-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.quest-container .progress-title {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.quest-container .progress-title h2 {
    font-size: 1rem;
    font-weight: 600;
    color: white;
}

.quest-container .progress-title p {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.quest-container .progress-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-md);
    align-items: stretch;
}

.quest-container .stat-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
 
   
    border-radius: var(--border-radius-lg);
    padding-left: var(--spacing-lg);
    padding-top: 30px;
    padding-bottom: 30px;
     padding-right: var(--spacing-lg);
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    flex-grow: 1;
    min-height: 160px;
    cursor: pointer;
}

.quest-container .stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.quest-container .stat-card:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05));
    border-color: var(--glass-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-light);
}

.quest-container .stat-card:hover::before {
    opacity: 1;
}

.quest-container .stat-card .stat-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
    color: white;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.quest-container .stat-card .stat-icon.completed {
    background: linear-gradient(135deg, #10b981, #059669);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.quest-container .stat-card .stat-icon.active {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.quest-container .stat-card .stat-icon.xp {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.quest-container .stat-card .stat-icon.rewards {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.quest-container .stat-card .stat-icon.streak {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    box-shadow: 0 4px 12px rgba(255, 38, 76, 0.3);
}

.quest-container .stat-card .stat-icon.trophy {
    background: linear-gradient(135deg, #eab308, #ca8a04);
    box-shadow: 0 4px 12px rgba(234, 179, 8, 0.3);
}

.quest-container .stat-card .stat-icon::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
}

.quest-container .stat-card:hover .stat-icon::after {
    left: 100%;
}

.quest-container .stat-number {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
    background: linear-gradient(135deg, white, var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.quest-container .stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    line-height: 1.3;
    opacity: 0.9;
}

.quest-container .progress-bar-container {
    max-width: 500px;
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-gray);
}

.quest-container .progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.quest-container .progress-bar {
    width: 100%;
    height: 8px;
    background: var(--progress-bg);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.quest-container .progress-fill {
    height: 100%;
    background-color: var(--primary);
    border-radius: 6px;
    transition: width 0.5s ease;
}

/* Point 14: Category Filters - Improved filter design and interaction */
.quest-container .category-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-6);
    padding: var(--spacing-8);
    background: var(--glass-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    margin-bottom: var(--spacing-16);
    position: relative;
    overflow: hidden;
}

.quest-container .category-nav::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    z-index: 1;
}

.quest-container .category-tab {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    padding: var(--spacing-6) var(--spacing-12);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin: 0;
    outline: none;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.quest-container .category-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.4s ease;
}

.quest-container .category-tab:hover::before {
    transform: translateX(100%);
}

.quest-container .category-tab:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text-secondary);
    transform: translateY(-1px);
}

.quest-container .category-tab.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-color: var(--primary-light);
    color: white;
    font-weight: 600;
    box-shadow: var(--shadow-md), var(--glow-primary);
}

.quest-container .category-tab.active:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    transform: translateY(-2px);
}

/* Point 11: Accessibility - Focus management for category tabs */
.quest-container .category-tab:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

.quest-container .category-tab:focus:not(:focus-visible) {
    outline: none;
}

/* Category tab icons */
.quest-container .category-tab i {
    font-size: 1rem;
    transition: transform var(--transition-fast);
}

.quest-container .category-tab.active i {
    transform: scale(1.1);
}

/* Responsive category navigation */
@media (max-width: 1024px) {
    .quest-container .category-nav {
        gap: var(--spacing-4);
        padding: var(--spacing-6);
    }
    
    .quest-container .category-tab {
        padding: var(--spacing-4) var(--spacing-8);
        font-size: 0.8125rem;
    }
}

@media (max-width: 768px) {
    .quest-container .category-nav {
        flex-direction: column;
        gap: var(--spacing-3);
        padding: var(--spacing-4);
    }

    .quest-container .category-tab {
        width: 100%;
        justify-content: flex-start;
        padding: var(--spacing-6) var(--spacing-8);
    }
}

@media (max-width: 640px) {
    .quest-container .category-nav {
        margin-bottom: var(--spacing-12);
    }

    .quest-container .category-tab {
        font-size: 0.875rem;
        padding: var(--spacing-5) var(--spacing-6);
    }
}

/* Enhanced Quest Grid System - Point 1: Card Layout Density & Point 8: Grid Responsiveness */
.quest-container .quest-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-bottom: var(--spacing-16);
    padding: 0;
    width: 100%;
    box-sizing: border-box;
}

@media (max-width: 1200px) {
    .quest-container .quest-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 700px) {
    .quest-container .quest-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }
}
 

@media (max-width: 1400px) {
    .quest-container .quest-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 1024px) {
    .quest-container .quest-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .quest-container .quest-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
        gap: var(--spacing-6);
    }
}

@media (max-width: 640px) {
    .quest-container .quest-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
}

/* Enhanced Quest Card - Point 1: Card Layout Density */
.quest-container .quest-card {
    /* Layout */
    min-height: var(--card-min-height);
    padding: var(--card-padding);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-12);
    
    /* Styling */
    background: var(--glass-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    
    /* Animation */
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.quest-container .quest-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    z-index: 1;
}

/* Point 10: Motion Design - Enhanced hover effects */
.quest-container .quest-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-xl), var(--glow-primary);
    transform: translateY(-4px);
}

/* Point 11: Accessibility - Focus management */
.quest-container .quest-card:focus {
    outline: 2px solid var(--primary);
    outline-offset: 4px;
    background: var(--glass-bg-active);
    border-color: var(--glass-border-active);
}

.quest-container .quest-card:focus:not(:focus-visible) {
    outline: none;
}

/* Quest Card Header Section */
.quest-container .quest-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-12);
    margin: 0;
    position: relative;
}

.quest-container .quest-content {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-12);
    flex: 1;
    min-width: 0;
}

/* Point 7: Icon Consistency - Enhanced quest icons */
.quest-container .quest-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    flex-shrink: 0;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.quest-container .quest-icon::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.quest-container .quest-card:hover .quest-icon::after {
    transform: translateX(100%);
}

/* Point 2: Visual Hierarchy - Enhanced quest info section */
.quest-container .quest-info {
    flex: 1;
    min-width: 0;
    padding-right: 80px; /* Space for difficulty badge */
}

.quest-container .quest-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-6) 0;
    line-height: 1.2;
    letter-spacing: -0.01em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.quest-container .quest-description {
    color: var(--text-muted);
    font-size: 0.875rem;
    line-height: 1.5;
    font-weight: 400;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Point 5: Difficulty Badge System - Color-coded difficulty levels */
.quest-container .type-badge {
    position: absolute;
    top: 0;
    right: 0;
    padding: var(--spacing-2) var(--spacing-6);
    border-radius: var(--radius-lg);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 2;
}

.quest-container .type-badge.type-daily {
    background: var(--success-bg);
    color: var(--success);
    border-color: var(--success-border);
}

.quest-container .type-badge.type-watchtime {
    background: var(--info-bg);
    color: var(--info);
    border-color: var(--info-border);
}

.quest-container .type-badge.type-chat {
    background: var(--warning-bg);
    color: var(--warning);
    border-color: var(--warning-border);
}

.quest-container .type-badge.type-partner {
    background: var(--primary-100);
    color: var(--primary);
    border-color: var(--primary-300);
}

.quest-container .type-badge.type-affiliate {
    background: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
    border-color: rgba(139, 92, 246, 0.3);
}

.quest-container .type-badge.type-random {
    background: var(--error-bg);
    color: var(--error);
    border-color: var(--error-border);
}

/* Difficulty Level Badges (if quest has difficulty property) */
.quest-container .difficulty-badge {
    position: absolute;
    top: var(--spacing-8);
    right: 0;
    padding: var(--spacing-1) var(--spacing-4);
    border-radius: var(--radius-base);
    font-size: 0.625rem;
    font-weight: 500;
    text-transform: capitalize;
    letter-spacing: 0.025em;
    z-index: 1;
}

.quest-container .difficulty-easy {
    background: rgba(16, 185, 129, 0.2);
    color: var(--difficulty-easy);
    border: 1px solid rgba(16, 185, 129, 0.4);
}

.quest-container .difficulty-medium {
    background: rgba(245, 158, 11, 0.2);
    color: var(--difficulty-medium);
    border: 1px solid rgba(245, 158, 11, 0.4);
}

.quest-container .difficulty-hard {
    background: rgba(239, 68, 68, 0.2);
    color: var(--difficulty-hard);
    border: 1px solid rgba(239, 68, 68, 0.4);
}

.quest-container .difficulty-expert {
    background: rgba(139, 92, 246, 0.2);
    color: var(--difficulty-expert);
    border: 1px solid rgba(139, 92, 246, 0.4);
}

.quest-container .difficulty-legendary {
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.2), rgba(194, 65, 12, 0.2));
    color: var(--difficulty-legendary);
    border: 1px solid rgba(249, 115, 22, 0.4);
}

/* Legacy quest reward styles (for backward compatibility) */
.quest-container .quest-reward {
    background: linear-gradient(135deg, #fbbf24, #f59e0b, #d97706);
    color: #1a1a1a;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(251, 191, 36, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    position: relative;
    overflow: hidden;
}

.quest-container .quest-reward::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s;
}

.quest-container .quest-card:hover .quest-reward::before {
    left: 100%;
}

/* Point 3: Progress Bars - Modern design with animations and better indicators */
.quest-container .quest-progress {
    margin: 0;
    padding: 0;
}

.quest-container .quest-progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-6);
    font-size: 0.875rem;
}

.quest-container .quest-progress-label {
    font-weight: 500;
    color: var(--text-primary);
}

.quest-container .quest-progress-value {
    font-weight: 600;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.quest-container .progress-bar {
    width: 100%;
    height: 8px;
    background: var(--progress-bg);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.quest-container .progress-fill {
    height: 100%;
    background: var(--progress-fill);
    border-radius: var(--radius-full);
    position: relative;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.quest-container .progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 100%
    );
    transform: translateX(-100%);
    animation: progressShimmer 2s infinite;
}

@keyframes progressShimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* Progress bar states */
.quest-container .progress-fill[data-status="completed"] {
    background: var(--progress-complete);
}

.quest-container .progress-fill[data-status="near-completion"] {
    background: linear-gradient(135deg, var(--warning), #f59e0b);
}

/* Progress indicators for different completion levels */
.quest-container .progress-bar[data-progress="0"] .progress-fill {
    background: linear-gradient(135deg, var(--text-subtle), var(--text-muted));
}

.quest-container .progress-bar[data-progress="25"] .progress-fill,
.quest-container .progress-bar[data-progress="50"] .progress-fill {
    background: linear-gradient(135deg, var(--info), #2563eb);
}

.quest-container .progress-bar[data-progress="75"] .progress-fill {
    background: linear-gradient(135deg, var(--warning), #f59e0b);
}

.quest-container .progress-bar[data-progress="100"] .progress-fill {
    background: var(--progress-complete);
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.4);
}

/* Point 4: Rewards Chip Design & Point 13: Token System - Enhanced reward display */
.quest-container .quest-footer {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: var(--spacing-16);
    margin-top: auto;
    flex-wrap: wrap;
}

.quest-container .quest-reward-section {
    flex: 1;
    min-width: 0;
}

.quest-container .quest-reward-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
    padding: var(--spacing-8) var(--spacing-12);
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.15), rgba(255, 193, 7, 0.15));
    border: 1px solid rgba(255, 215, 0, 0.4);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.quest-container .quest-reward-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 215, 0, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.quest-container .quest-reward-container:hover::before {
    transform: translateX(100%);
}

.quest-container .quest-reward-icon {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

.quest-container .quest-reward-text {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.9375rem;
    white-space: nowrap;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Token-specific reward styling */
.quest-container .reward-xp .quest-reward-container {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(37, 99, 235, 0.15));
    border-color: rgba(59, 130, 246, 0.4);
}

.quest-container .reward-token .quest-reward-container {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(21, 128, 61, 0.15));
    border-color: rgba(34, 197, 94, 0.4);
}

.quest-container .reward-dark-token .quest-reward-container {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(109, 40, 217, 0.15));
    border-color: rgba(139, 92, 246, 0.4);
}

.quest-container .reward-prime-token .quest-reward-container {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(217, 119, 6, 0.15));
    border-color: rgba(245, 158, 11, 0.4);
}

/* Point 6: Enhanced Action States - Better button states and interactions */
.quest-container .quest-action-container {
    flex-shrink: 0;
}

.quest-container .quest-action {
    padding: var(--spacing-8) var(--spacing-16);
    border: none;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    min-width: 120px;
    justify-content: center;
}

.quest-container .quest-action::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.4s ease;
}

.quest-container .quest-action:hover::before {
    transform: translateX(100%);
}

/* Action button states */
.quest-container .btn-claim {
    background: linear-gradient(135deg, var(--success), #059669);
    color: white;
    border: 1px solid rgba(16, 185, 129, 0.3);
    box-shadow: var(--shadow-md), var(--glow-success);
}

.quest-container .btn-claim:hover {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--glow-success);
}

.quest-container .btn-complete {
    background: linear-gradient(135deg, var(--info), #2563eb);
    color: white;
    border: 1px solid rgba(59, 130, 246, 0.3);
    box-shadow: var(--shadow-md);
}

.quest-container .btn-complete:hover {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.quest-container .btn-progress {
    background: rgba(107, 114, 128, 0.2);
    color: var(--text-muted);
    border: 1px solid rgba(107, 114, 128, 0.4);
    cursor: default;
}

.quest-container .btn-progress:hover {
    background: rgba(107, 114, 128, 0.3);
    transform: none;
}

/* Loading and disabled states */
.quest-container .quest-action.loading {
    cursor: not-allowed;
    opacity: 0.7;
}

.quest-container .quest-action.disabled,
.quest-container .quest-action:disabled {
    cursor: not-allowed;
    opacity: 0.6;
    pointer-events: none;
}

/* Legacy quest meta styles (for backward compatibility) */
.quest-container .quest-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.quest-container .difficulty-badge {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.quest-container .difficulty-easy {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(34, 197, 94, 0.1));
    color: #4ade80;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.quest-container .difficulty-medium {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(59, 130, 246, 0.1));
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.quest-container .difficulty-hard {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.2), rgba(168, 85, 247, 0.1));
    color: #a78bfa;
    border: 1px solid rgba(168, 85, 247, 0.3);
}

.quest-container .quest-action {
    padding: 10px 20px;
    border-radius: var(--border-radius-md);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.quest-container .quest-action::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.quest-container .quest-action:hover::before {
    left: 100%;
}

.quest-container .btn-claim {
    background: linear-gradient(135deg, #10b981, #059669, #047857);
    color: white;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.quest-container .btn-claim:hover {
    background: linear-gradient(135deg, #059669, #047857, #065f46);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4);
}

.quest-container .btn-complete {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    animation: pulseGlow 2s infinite;
    box-shadow: var(--glow-primary);
}

.quest-container .btn-complete:hover {
    animation: none;
    transform: translateY(-2px) scale(1.05);
}

@keyframes pulseGlow {

    0%,
    100% {
        box-shadow: var(--glow-primary);
        transform: scale(1);
    }

    50% {
        box-shadow: 0 0 30px rgba(255, 38, 76, 0.5);
        transform: scale(1.02);
    }
}

.quest-container .btn-progress {
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-gray);
}

.quest-container .btn-progress:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
}

/* Enhanced Weekly Rewards Section */
.quest-container .weekly-rewards {
    padding: 2rem 1rem 2rem 1rem;
    margin-top: 1.5rem;
}

.quest-container .weekly-rewards::before {
    content: '';
    position: absolute;
    top: 0;
    left: 15%;
    right: 15%;
    height: 1px;
    background: var(--section-divider);
}

.quest-container .rewards-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 1.35rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.25rem;
    text-align: center;
    justify-content: center;
    letter-spacing: -0.02em;
}

.quest-container .rewards-title i {
    font-size: 2rem;
    filter: drop-shadow(var(--glow-primary));
}

.quest-container .rewards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.75rem;
    max-width: 900px;
    margin: 0 auto;
}

.quest-container .reward-item {
    background: linear-gradient(135deg, var(--dark-card), var(--dark-hover));
    border: 1px solid var(--border-gray);
    border-radius: var(--border-radius-lg);
    padding: 1.25rem 0.75rem 1.25rem 0.75rem;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.quest-container .reward-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #6b7280, #9ca3af, #6b7280);
    transition: background 0.3s ease;
}

.quest-container .reward-item.current {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-color: var(--primary-light);
    transform: scale(1.08);
    box-shadow: var(--glow-primary), var(--shadow-medium);
    animation: currentRewardPulse 3s infinite;
}

.quest-container .reward-item.current::before {
    background: linear-gradient(90deg, var(--primary-light), white, var(--primary-light));
}

.quest-container .reward-item.completed {
    background: linear-gradient(135deg, #065f46, #047857);
    border-color: #10b981;
    opacity: 1;
}

.quest-container .reward-item.completed::before {
    background: linear-gradient(90deg, #10b981, #34d399, #10b981);
}

.quest-container .reward-item:not(.completed):not(.current) {
    opacity: 0.6;
}

.quest-container .reward-item:hover:not(.current) {
    background: linear-gradient(135deg, var(--dark-hover), #252030);
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
    opacity: 1;
}

@keyframes currentRewardPulse {

    0%,
    100% {
        box-shadow: var(--glow-primary), var(--shadow-medium);
    }

    50% {
        box-shadow: 0 0 40px rgba(255, 38, 76, 0.5), var(--shadow-heavy);
    }
}

.quest-container .reward-day {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.quest-container .reward-icon {
    width: 3rem;
    height: 3rem;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.quest-container .reward-icon::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.quest-container .reward-item:hover .reward-icon::after {
    left: 100%;
}

.quest-container .reward-icon.completed {
    background: linear-gradient(135deg, #10b981, #059669);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.quest-container .reward-icon.current {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2);
}

.quest-container .reward-icon.pending {
    background: linear-gradient(135deg, #374151, #4b5563);
}

.quest-container .reward-text {
    font-size: 0.8rem;
    font-weight: 600;
    color: white;
    line-height: 1.3;
}

.quest-container .reward-today {
    font-size: 0.75rem;
    color: white;
    font-weight: 700;
    margin-top: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    animation: todayBlink 2s infinite;
}

@keyframes todayBlink {

    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0.7;
    }
}

/* Enhanced Animations */
@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }

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

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.fade-in {
    animation: fadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-up {
    animation: slideInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Enhanced Responsive Design */
@media (max-width: 480px) {
    .quest-container {
        padding: 0.5rem 0.25rem 1rem 0.25rem;
    }

    .quest-container .main-banner,
    .quest-container .weekly-rewards {
        padding: 1rem 0.25rem 1rem 0.25rem;
    }

    .quest-container .quest-card,
    .quest-container .reward-item {
        padding: 0.75rem 0.25rem 0.75rem 0.25rem;
    }

    .quest-container .category-nav {
        padding: 0.25rem;
    }
}

/* Apply quest card color theme to widgets */
.stat-card {
    background: rgba(255, 255, 255, 0.06);
    border: none; /* Remove border */
    border-radius: 0.5rem; /* Rounded corners */
    padding: 1rem; /* Padding for spacing */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); /* Enhanced shadow */
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    color: white; /* Text color for contrast */
}

/* Point 12: Content States - Loading, empty, error states */
.quest-container .loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    gap: var(--spacing-12);
    color: var(--text-muted);
}

.quest-container .loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 38, 76, 0.2);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.quest-container .empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    gap: var(--spacing-16);
    text-align: center;
    padding: var(--spacing-32);
}

.quest-container .empty-state-icon {
    width: 80px;
    height: 80px;
    background: var(--glass-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--text-muted);
    border: 1px solid var(--glass-border);
}

.quest-container .empty-state-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin: 0;
}

.quest-container .empty-state-description {
    font-size: 1rem;
    color: var(--text-muted);
    max-width: 400px;
    line-height: 1.6;
    margin: 0;
}

.quest-container .error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    gap: var(--spacing-12);
    padding: var(--spacing-24);
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    border-radius: var(--radius-2xl);
    text-align: center;
}

.quest-container .error-state-icon {
    color: var(--error);
    font-size: 2rem;
}

.quest-container .error-state-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--error);
    margin: 0;
}

.quest-container .error-state-description {
    color: var(--text-muted);
    margin: 0;
}

/* Skeleton loading for quest cards */
.quest-container .quest-card.skeleton {
    pointer-events: none;
    overflow: hidden;
    position: relative;
}

.quest-container .skeleton::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.05) 20%,
        rgba(255, 255, 255, 0.1) 60%,
        transparent 100%
    );
    animation: skeletonShimmer 2s infinite;
}

/* Point 15: Advanced Animations - Staggered animations and micro-interactions */
.quest-container .fade-in {
    animation: fadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.quest-container .slide-in-up {
    animation: slideInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.quest-container .stagger-fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInStagger 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Stagger delay classes for sequential animations */
.quest-container .stagger-1 { animation-delay: 0.1s; }
.quest-container .stagger-2 { animation-delay: 0.2s; }
.quest-container .stagger-3 { animation-delay: 0.3s; }
.quest-container .stagger-4 { animation-delay: 0.4s; }
.quest-container .stagger-5 { animation-delay: 0.5s; }
.quest-container .stagger-6 { animation-delay: 0.6s; }

/* Point 10: Motion Design - Comprehensive animation system */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes skeletonShimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

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

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        transform: translate3d(0, -8px, 0);
    }
    70% {
        transform: translate3d(0, -4px, 0);
    }
    90% {
        transform: translate3d(0, -2px, 0);
    }
}

/* Point 11: Accessibility - Enhanced WCAG compliance */
.quest-container [aria-live] {
    position: relative;
}

.quest-container .sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .quest-container {
        --glass-bg: rgba(0, 0, 0, 0.8);
        --glass-border: rgba(255, 255, 255, 0.3);
        --text-muted: #cccccc;
        --text-secondary: #ffffff;
    }
    
    .quest-container .quest-card {
        border-width: 2px;
    }
    
    .quest-container .category-tab.active {
        outline: 3px solid white;
        outline-offset: 2px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .quest-container * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .quest-container .quest-card:hover {
        transform: none;
    }
    
    .quest-container .category-tab:hover {
        transform: none;
    }
    
    .quest-container .quest-action:hover {
        transform: none;
    }
}

/* Focus outline customization for better accessibility */
.quest-container *:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.quest-container *:focus:not(:focus-visible) {
    outline: none;
}

/* Enhanced focus indicators for interactive elements */
.quest-container .quest-card:focus-within {
    box-shadow: var(--shadow-xl), 0 0 0 3px rgba(255, 38, 76, 0.3);
}

/* Print styles */
@media print {
    .quest-container {
        background: white;
        color: black;
    }
    
    .quest-container .glass-card {
        background: white;
        border: 1px solid #ccc;
        backdrop-filter: none;
    }
    
    .quest-container .quest-action {
        display: none;
    }
    
    .quest-container .category-nav {
        display: none;
    }
}

/* Dark mode enhancements (already handled by CSS variables, but adding specific overrides) */
@media (prefers-color-scheme: dark) {
    .quest-container {
        /* Variables are already optimized for dark mode */
    }
}

/* Large screen optimizations */
@media (min-width: 1920px) {
    .quest-container .quest-grid {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
        gap: var(--spacing-16);
    }
    
    .quest-container {
        max-width: 1600px;
    }
}

/* Ultra-wide screen support */
@media (min-width: 2560px) {
    .quest-container {
        max-width: 2000px;
    }
    
    .quest-container .quest-grid {
        grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
        gap: var(--spacing-20);
    }
}

/* Small height viewport optimizations */
@media (max-height: 600px) {
    .quest-container {
        padding-top: var(--spacing-8);
        padding-bottom: var(--spacing-8);
    }
    
    .quest-container .quest-card {
        min-height: 180px;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .quest-container .quest-card {
        padding: var(--spacing-16);
    }
    
    .quest-container .category-tab {
        padding: var(--spacing-8) var(--spacing-12);
        min-height: 44px; /* iOS minimum touch target */
    }
    
    .quest-container .quest-action {
        min-height: 44px;
        padding: var(--spacing-8) var(--spacing-16);
    }
}

.stat-card:hover {
    transform: translateY(-4px); /* Lift effect on hover */
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15); /* Enhanced shadow on hover */
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05)); /* Subtle gradient on hover */
}

.stat-card .stat-icon {
    font-size: 2rem; /* Larger icon size */
    margin-bottom: 0.5rem; /* Spacing below icon */
    color: white; /* Icon color for contrast */
}

.stat-card .stat-icon::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
}

.stat-card:hover .stat-icon::after {
    left: 100%;
}

.stat-number {
    font-size: 1.5rem; /* Larger number size */
    font-weight: bold;
    color: white; /* Text color for contrast */
}

.stat-label {
    font-size: 0.875rem; /* Smaller label size */
    color: #f1f5f9; /* Muted text color for contrast */
}



.quest-card {
    position: relative;
}

.quest-difficulty-banner {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    padding: 0.25rem 0.6rem;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 2;
    pointer-events: none;
}

.difficulty-easy {
    color: #4ade80;
    border-color: rgba(34, 197, 94, 0.3);
    background: rgba(34, 197, 94, 0.1);
}

.difficulty-medium {
    color: #60a5fa;
    border-color: rgba(59, 130, 246, 0.3);
    background: rgba(59, 130, 246, 0.1);
}

.difficulty-hard {
    color: #a78bfa;
    border-color: rgba(168, 85, 247, 0.3);
    background: rgba(168, 85, 247, 0.1);
}