/* ============================================
   DESIGN SYSTEM - Influ Factory
   Version: 2.0 - Complete Redesign
   ============================================ */

:root {
    /* Colors */
    --color-primary: #ffffff;
    --color-primary-dark: #f0f0f0;
    --color-bg: #000000;
    --color-bg-secondary: rgba(255, 255, 255, 0.08);
    --color-bg-hover: rgba(255, 255, 255, 0.12);
    --color-border: rgba(255, 255, 255, 0.15);
    --color-border-hover: rgba(255, 255, 255, 0.25);
    --color-text: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-muted: rgba(255, 255, 255, 0.5);
    
    /* Category Colors */
    --color-beginner: #4CAF50;
    --color-intermediate: #2196F3;
    --color-advanced: #FF9800;
    --color-expert: #9C27B0;
    --color-master: #FFD700;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(255, 255, 255, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-tooltip: 1050;
}

/* ============================================
   COMPONENTS - Notification Button
   ============================================ */

.notification-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-secondary);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    touch-action: manipulation;
    min-height: 44px;
}

.notification-toggle-btn:hover:not(:disabled) {
    background: var(--color-bg-hover);
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.notification-toggle-btn:active:not(:disabled) {
    transform: translateY(0);
}

.notification-toggle-btn.active {
    background: var(--color-primary);
    color: var(--color-bg);
    border-color: var(--color-primary);
}

.notification-toggle-btn.active:hover {
    background: var(--color-primary-dark);
}

.notification-toggle-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.notification-toggle-btn i {
    font-size: 16px;
}

/* ============================================
   COMPONENTS - Progress Bar
   ============================================ */

.progress-container {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-full);
    height: 8px;
    overflow: hidden;
    position: relative;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, rgba(255, 255, 255, 0.8) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

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

/* ============================================
   COMPONENTS - Category Badge
   ============================================ */

.category-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.category-badge.beginner {
    background: rgba(76, 175, 80, 0.2);
    color: var(--color-beginner);
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.category-badge.intermediate {
    background: rgba(33, 150, 243, 0.2);
    color: var(--color-intermediate);
    border: 1px solid rgba(33, 150, 243, 0.3);
}

.category-badge.advanced {
    background: rgba(255, 152, 0, 0.2);
    color: var(--color-advanced);
    border: 1px solid rgba(255, 152, 0, 0.3);
}

.category-badge.expert {
    background: rgba(156, 39, 176, 0.2);
    color: var(--color-expert);
    border: 1px solid rgba(156, 39, 176, 0.3);
}

.category-badge.master {
    background: rgba(255, 215, 0, 0.2);
    color: var(--color-master);
    border: 1px solid rgba(255, 215, 0, 0.3);
}

/* ============================================
   COMPONENTS - Tool Card
   ============================================ */

.tool-card-modern {
    background: var(--color-bg-secondary);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.tool-card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left var(--transition-slow);
}

.tool-card-modern:hover::before {
    left: 100%;
}

.tool-card-modern:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.tool-card-modern.locked {
    opacity: 0.5;
    cursor: not-allowed;
}

.tool-card-modern.locked::after {
    content: 'LOCK';
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
}

.tool-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.tool-icon-large {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-bg);
    border-radius: var(--radius-md);
    font-size: 24px;
    flex-shrink: 0;
}

.tool-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}

.tool-description {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ============================================
   COMPONENTS - Badge Display
   ============================================ */

.badge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--spacing-md);
}

.badge-item {
    background: var(--color-bg-secondary);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    transition: all var(--transition-base);
    backdrop-filter: blur(20px);
}

.badge-item:hover {
    transform: translateY(-4px);
    border-color: var(--color-border-hover);
}

.badge-item.locked {
    opacity: 0.4;
    filter: grayscale(100%);
}

.badge-icon {
    font-size: 32px;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.badge-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

/* ============================================
   COMPONENTS - Stats Card
   ============================================ */

.stats-card-modern {
    background: var(--color-bg-secondary);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all var(--transition-base);
}

.stats-card-modern:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
}

.stats-label {
    font-size: 13px;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.stats-value {
    font-size: 32px;
    font-weight: 900;
    color: var(--color-text);
    margin: 0;
}

.stats-change {
    font-size: 12px;
    margin-top: var(--spacing-xs);
}

.stats-change.positive {
    color: var(--color-beginner);
}

.stats-change.negative {
    color: #ff4444;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .notification-toggle-btn {
        width: 100%;
        justify-content: center;
    }
    
    .tool-card-modern {
        padding: var(--spacing-md);
    }
    
    .badge-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .stats-card-modern {
        padding: var(--spacing-md);
    }
    
    .stats-value {
        font-size: 24px;
    }
}

/* ============================================
   UTILITIES
   ============================================ */

.glass-effect {
    background: var(--color-bg-secondary);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1.5px solid var(--color-border);
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, rgba(255, 255, 255, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pulse-animation {
    animation: pulse 2s ease-in-out infinite;
}

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