/* ============================================
   BACKPACK BATTLES SOLVER PRO - STYLESHEET
   Enhanced Professional Design with Modern UX
   ============================================ */

/* CSS Custom Properties */
:root {
    /* Enhanced Color Palette */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;
    
    --secondary-50: #f8fafc;
    --secondary-100: #f1f5f9;
    --secondary-200: #e2e8f0;
    --secondary-300: #cbd5e1;
    --secondary-400: #94a3b8;
    --secondary-500: #64748b;
    --secondary-600: #475569;
    --secondary-700: #334155;
    --secondary-800: #1e293b;
    --secondary-900: #0f172a;
    
    /* Enhanced Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-warning: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.05));
    
    /* Semantic Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-accent: #2563eb;
    --bg-dark: #1e293b;
    --bg-glass: rgba(255, 255, 255, 0.95);
    
    /* Text Colors */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-inverse: #ffffff;
    
    /* Enhanced Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);
    
    /* Enhanced Border & Radius */
    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;
    --border-dark: #94a3b8;
    --border-accent: #2563eb;
    
    --radius-xs: 0.25rem;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;
    
    /* Spacing Scale */
    --space-px: 1px;
    --space-0: 0;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'Fira Code', 'Monaco', 'Consolas', monospace;
    
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Enhanced Transitions */
    --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);
    --transition-bounce: 350ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* 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;
    
    /* Enhanced Item Rarity Colors */
    --rarity-common: linear-gradient(135deg, #94a3b8, #64748b);
    --rarity-rare: linear-gradient(135deg, #3b82f6, #1d4ed8);
    --rarity-epic: linear-gradient(135deg, #8b5cf6, #7c3aed);
    --rarity-legendary: linear-gradient(135deg, #f59e0b, #d97706);
    --rarity-godly: linear-gradient(135deg, #ef4444, #dc2626);
    --rarity-unique: linear-gradient(135deg, #10b981, #059669);
}

/* ============================================
   GLOBAL STYLES & RESET
   ============================================ */

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

html {
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: var(--gradient-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

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

::-webkit-scrollbar-track {
    background: var(--secondary-100);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-600);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   LOADING SCREEN
   ============================================ */

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    backdrop-filter: blur(10px);
}

.loading-content {
    text-align: center;
    color: var(--text-inverse);
    max-width: 400px;
    padding: var(--space-8);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top: 4px solid var(--text-inverse);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-6);
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.3));
}

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

.loading-content h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.loading-content p {
    font-size: var(--font-size-base);
    opacity: 0.9;
    margin-bottom: var(--space-6);
}

.loading-progress {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    overflow: hidden;
    box-shadow: var(--shadow-inner);
}

.loading-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #ffffff, #e0e7ff, #ffffff);
    border-radius: var(--radius-full);
    width: 0%;
    transition: width var(--transition-base);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* ============================================
   APP CONTAINER & LAYOUT
   ============================================ */

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
}

/* Enhanced Header */
.app-header {
    background: var(--bg-glass);
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    backdrop-filter: blur(20px);
}

.header-content {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--space-6) var(--space-8);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}

.header-title {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.header-title i {
    font-size: var(--font-size-3xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.header-title h1 {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    letter-spacing: -0.02em;
}

.header-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    font-weight: 500;
    margin: 0;
    text-align: center;
}

.header-stats {
    display: flex;
    gap: var(--space-6);
    flex-wrap: wrap;
    justify-content: center;
}

.header-stats .stat-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-xl);
    font-weight: 600;
    color: var(--text-secondary);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.header-stats .stat-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.header-stats .stat-item i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-base);
}

.header-stats .stat-item span {
    color: var(--text-primary);
    font-weight: 700;
}

/* Enhanced Main Grid Layout */
.main-grid {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--space-8);
    display: grid;
    grid-template-columns: 350px 1fr 350px;
    gap: var(--space-8);
    align-items: start;
    flex: 1;
}

/* Enhanced Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.sidebar-left,
.sidebar-right {
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    padding-right: var(--space-2);
}

.main-content {
    display: flex;
    flex-direction: column;
    min-height: 70vh;
}

/* ============================================
   ENHANCED PANELS & COMPONENTS
   ============================================ */

.panel {
    background: var(--bg-glass);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
    height: fit-content;
    backdrop-filter: blur(20px);
    transition: all var(--transition-fast);
}

.panel:hover {
    box-shadow: var(--shadow-2xl);
    transform: translateY(-2px);
}

.panel-header {
    padding: var(--space-6) var(--space-8);
    border-bottom: 1px solid var(--border-light);
    background: rgba(255, 255, 255, 0.5);
    display: flex;
    align-items: center;
    justify-content: space-between;
    backdrop-filter: blur(10px);
}

.panel-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin: 0;
}

.panel-header i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.panel-controls {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.panel-content {
    padding: var(--space-8);
}

/* ============================================
   ENHANCED FORMS & INPUTS
   ============================================ */

.form-section {
    margin-bottom: var(--space-8);
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-label i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-select,
.form-select-sm {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-base);
    font-weight: 500;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right var(--space-4) center;
    background-size: 16px;
    padding-right: 3rem;
    box-shadow: var(--shadow-sm);
}

.form-select-sm {
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-sm);
    padding-right: 2.5rem;
    border-radius: var(--radius-lg);
}

.form-select:focus,
.form-select-sm:focus {
    outline: none;
    border-color: var(--primary-600);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1), var(--shadow-md);
    transform: translateY(-1px);
}

/* Enhanced Class Selector */
.class-selector {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.class-option {
    padding: var(--space-6);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-xl);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-bounce);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.class-option::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 ease;
}

.class-option:hover::before {
    left: 100%;
}

.class-option:hover {
    border-color: var(--primary-600);
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.class-option.selected {
    border-color: var(--primary-600);
    background: var(--gradient-primary);
    color: var(--text-inverse);
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.class-option i {
    font-size: var(--font-size-2xl);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.class-option span {
    font-weight: 700;
    font-size: var(--font-size-base);
}

.class-option small {
    font-size: var(--font-size-xs);
    opacity: 0.8;
    font-weight: 500;
}

/* Enhanced Shop Grid */
.shop-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.item-slot {
    aspect-ratio: 1;
    border: 3px dashed var(--border-medium);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-bounce);
    background: var(--bg-primary);
    position: relative;
    min-height: 120px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.item-slot::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-fast);
    border-radius: calc(var(--radius-xl) - 3px);
}

.item-slot:hover::before {
    opacity: 0.05;
}

.item-slot:hover {
    border-color: var(--primary-600);
    transform: scale(1.05);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.item-slot.filled {
    border-style: solid;
    border-color: var(--success);
    background: var(--bg-primary);
    box-shadow: var(--shadow-md);
}

.item-slot.filled:hover {
    border-color: var(--primary-600);
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.slot-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3);
    text-align: center;
    width: 100%;
    height: 100%;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.slot-content i {
    font-size: var(--font-size-xl);
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
}

.slot-content span {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.3;
}

.item-slot:hover .slot-content i {
    color: var(--primary-600);
    transform: scale(1.1);
}

.item-image {
    width: 50px;
    height: 50px;
    object-fit: contain;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-2);
    transition: all var(--transition-fast);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.item-slot:hover .item-image {
    transform: scale(1.1);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.15));
}

.item-name {
    font-size: var(--font-size-xs);
    text-align: center;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
    max-width: 100%;
    overflow-wrap: break-word;
    padding: 0 var(--space-2);
}

.item-cost {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    background: linear-gradient(135deg, #ffd700, #ffa500);
    color: #744210;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: 700;
    box-shadow: var(--shadow-md);
    z-index: 2;
    border: 2px solid rgba(255, 255, 255, 0.8);
}

.item-rarity-indicator {
    position: absolute;
    bottom: var(--space-2);
    left: var(--space-2);
    right: var(--space-2);
    height: 4px;
    border-radius: var(--radius-sm);
    z-index: 2;
}

/* Enhanced Rarity Classes */
.rarity-common { border-left: 6px solid #94a3b8; }
.rarity-rare { border-left: 6px solid #3b82f6; }
.rarity-epic { border-left: 6px solid #8b5cf6; }
.rarity-legendary { border-left: 6px solid #f59e0b; }
.rarity-godly { border-left: 6px solid #ef4444; }
.rarity-unique { border-left: 6px solid #10b981; }

.rarity-indicator-common { background: var(--rarity-common); }
.rarity-indicator-rare { background: var(--rarity-rare); }
.rarity-indicator-epic { background: var(--rarity-epic); }
.rarity-indicator-legendary { background: var(--rarity-legendary); }
.rarity-indicator-godly { background: var(--rarity-godly); }
.rarity-indicator-unique { background: var(--rarity-unique); }

/* ============================================
   ENHANCED BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    border: none;
    border-radius: var(--radius-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-bounce);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    min-height: 44px;
    box-shadow: var(--shadow-sm);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all var(--transition-fast);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-inverse);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--border-light);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-600);
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
    transform: none;
}

.btn-icon {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-bounce);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.btn-icon:hover {
    background: var(--gradient-primary);
    color: var(--text-inverse);
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.btn-close {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: var(--radius-lg);
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-close:hover {
    background: var(--error);
    color: var(--text-inverse);
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.btn-clear {
    border: none;
    background: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.btn-clear:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
    transform: scale(1.1);
}

/* Action Buttons */
.action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
    margin-top: var(--space-6);
}

/* ============================================
   ENHANCED QUICK STATS
   ============================================ */

.quick-stats {
    margin-top: var(--space-6);
    padding: var(--space-6);
    background: rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    backdrop-filter: blur(10px);
}

.stat-group {
    display: flex;
    justify-content: space-between;
    gap: var(--space-4);
}

.stat-group .stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
    flex: 1;
    text-align: center;
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.stat-group .stat-item:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}

.stat-group .stat-item label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
}

.stat-group .stat-item span {
    font-size: var(--font-size-xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   ENHANCED RECOMMENDATIONS
   ============================================ */

.recommendations-container {
    max-height: 70vh;
    overflow-y: auto;
    padding-right: var(--space-2);
}

.recommendation-item {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    margin-bottom: var(--space-4);
    transition: all var(--transition-bounce);
    position: relative;
    backdrop-filter: blur(10px);
    cursor: pointer;
}

.recommendation-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

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

.recommendation-item:hover {
    border-color: var(--primary-600);
    transform: translateX(8px) translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.recommendation-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-4);
    gap: var(--space-4);
}

.recommendation-image {
    width: 50px;
    height: 50px;
    object-fit: contain;
    border-radius: var(--radius-lg);
    flex-shrink: 0;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.recommendation-info {
    flex: 1;
}

.recommendation-name {
    font-weight: 700;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.recommendation-stats {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    flex-wrap: wrap;
}

.stat-badge {
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    background: var(--secondary-200);
    color: var(--text-secondary);
}

.recommendation-priority {
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--text-inverse);
    flex-shrink: 0;
}

.priority-high { background: var(--gradient-secondary); }
.priority-medium { background: var(--gradient-warning); }
.priority-low { background: var(--gradient-success); }

.recommendation-reason {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   ENHANCED BUILDS
   ============================================ */

.builds-container {
    max-height: 70vh;
    overflow-y: auto;
    padding-right: var(--space-2);
}

.build-item {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
    cursor: pointer;
    transition: all var(--transition-bounce);
    backdrop-filter: blur(10px);
}

.build-item:hover {
    border-color: var(--primary-600);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px) scale(1.02);
}

.build-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.build-name {
    font-weight: 700;
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin: 0;
}

.build-description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    line-height: 1.6;
}

.build-section {
    margin-bottom: var(--space-4);
}

.build-section-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.build-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.build-item-tag {
    padding: var(--space-2) var(--space-3);
    background: var(--gradient-primary);
    color: var(--text-inverse);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.build-synergy-tag {
    padding: var(--space-2) var(--space-3);
    background: var(--gradient-success);
    color: var(--text-inverse);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

/* ============================================
   ENHANCED PLACEHOLDER STATES
   ============================================ */

.placeholder-state {
    text-align: center;
    padding: var(--space-12);
    color: var(--text-secondary);
}

.placeholder-state i {
    font-size: var(--font-size-5xl);
    color: var(--text-tertiary);
    margin-bottom: var(--space-6);
    opacity: 0.6;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.placeholder-state h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.placeholder-state p {
    font-size: var(--font-size-base);
    line-height: 1.6;
    max-width: 300px;
    margin: 0 auto;
}

/* ============================================
   ENHANCED MODAL SYSTEM
   ============================================ */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(8px);
}

.modal-content {
    background: var(--bg-glass);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    max-width: 90vw;
    max-height: 90vh;
    width: 1000px;
    position: relative;
    z-index: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.9);
    transition: transform var(--transition-bounce);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: var(--space-8);
    border-bottom: 1px solid var(--border-light);
    background: rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    backdrop-filter: blur(10px);
}

.modal-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin: 0;
}

.modal-header i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-body {
    padding: var(--space-8);
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}

/* Enhanced Search Controls */
.search-controls {
    margin-bottom: var(--space-8);
}

.search-box {
    position: relative;
    margin-bottom: var(--space-6);
}

.search-box i {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    z-index: 1;
}

.search-box input {
    width: 100%;
    padding: var(--space-4) var(--space-4) var(--space-4) 3rem;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-base);
    font-weight: 500;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-600);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1), var(--shadow-md);
    transform: translateY(-1px);
}

.search-box .btn-clear {
    position: absolute;
    right: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
}

/* Enhanced Filter Tabs */
.filter-tabs {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}

.filter-tab {
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-xl);
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: all var(--transition-bounce);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    box-shadow: var(--shadow-sm);
}

.filter-tab:hover,
.filter-tab.active {
    border-color: var(--primary-600);
    background: var(--gradient-primary);
    color: var(--text-inverse);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.filter-tab .count {
    background: rgba(255, 255, 255, 0.2);
    padding: 2px 6px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 700;
}

.filter-tab.active .count {
    background: rgba(255, 255, 255, 0.3);
}

/* Enhanced Rarity Filters */
.rarity-filters {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.rarity-filter {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: var(--font-size-xs);
    font-weight: 600;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-xs);
}

.rarity-filter:hover,
.rarity-filter.active {
    border-color: var(--primary-600);
    background: var(--gradient-primary);
    color: var(--text-inverse);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* Enhanced Item Grid */
.item-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--space-4);
    max-height: 500px;
    overflow-y: auto;
    padding: var(--space-4);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.loading-items {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-12);
    color: var(--text-secondary);
}

.loading-items i {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-4);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: pulse 2s infinite;
}

.selectable-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-4);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--transition-bounce);
    background: var(--bg-primary);
    min-height: 120px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.selectable-item:hover {
    border-color: var(--primary-600);
    transform: scale(1.05) translateY(-2px);
    box-shadow: var(--shadow-lg);
    z-index: 2;
}

.selectable-item img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    margin-bottom: var(--space-2);
    border-radius: var(--radius-md);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    transition: all var(--transition-fast);
}

.selectable-item:hover img {
    transform: scale(1.1);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.15));
}

.selectable-item-name {
    font-size: var(--font-size-xs);
    text-align: center;
    line-height: 1.3;
    font-weight: 600;
    color: var(--text-primary);
    flex-grow: 1;
    display: flex;
    align-items: center;
    padding: 0 var(--space-2);
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.selectable-item-cost {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    background: linear-gradient(135deg, #ffd700, #ffa500);
    color: #744210;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: 700;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

/* ============================================
   ENHANCED ANIMATIONS & EFFECTS
   ============================================ */

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.05); }
}

.fade-in {
    animation: fadeIn 0.4s ease-out;
}

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

.slide-up {
    animation: slideUp 0.4s ease-out;
}

@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.bounce-in {
    animation: bounceIn 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.05); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); opacity: 1; }
}

/* ============================================
   ENHANCED RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1400px) {
    .main-grid {
        grid-template-columns: 320px 1fr 320px;
        gap: var(--space-6);
        padding: var(--space-6);
    }
    
    .header-content {
        padding: var(--space-6);
    }
}

@media (max-width: 1200px) {
    .main-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
        padding: var(--space-6);
    }
    
    .sidebar {
        max-height: none;
        overflow-y: visible;
    }
    
    .panel-content {
        padding: var(--space-6);
    }
    
    .header-content {
        padding: var(--space-4) var(--space-6);
    }
    
    .header-title h1 {
        font-size: var(--font-size-2xl);
    }
    
    .header-subtitle {
        font-size: var(--font-size-base);
    }
    
    .shop-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .main-grid {
        padding: var(--space-4);
        gap: var(--space-4);
    }
    
    .header-content {
        padding: var(--space-4);
    }
    
    .header-title {
        flex-direction: column;
        text-align: center;
        gap: var(--space-2);
    }
    
    .header-title h1 {
        font-size: var(--font-size-xl);
    }
    
    .header-stats {
        gap: var(--space-4);
        flex-direction: column;
        width: 100%;
    }
    
    .header-stats .stat-item {
        justify-content: center;
        width: 100%;
        max-width: 200px;
        margin: 0 auto;
    }
    
    .class-selector {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }
    
    .shop-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-3);
    }
    
    .item-slot {
        min-height: 100px;
    }
    
    .action-buttons {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }
    
    .item-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: var(--space-3);
        max-height: 400px;
    }
    
    .modal-content {
        width: 95vw;
        margin: 5vh auto;
        border-radius: var(--radius-xl);
    }
    
    .modal-header,
    .modal-body {
        padding: var(--space-6);
    }
    
    .filter-tabs {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .rarity-filters {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .panel-content {
        padding: var(--space-4);
    }
    
    .panel-header {
        padding: var(--space-4) var(--space-6);
    }
}

@media (max-width: 480px) {
    .shop-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .header-stats {
        flex-direction: column;
        gap: var(--space-3);
    }
    
    .header-stats .stat-item {
        font-size: var(--font-size-sm);
    }
    
    .modal-content {
        width: 98vw;
        max-height: 95vh;
        border-radius: var(--radius-lg);
    }
    
    .filter-tabs {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-tab {
        justify-content: center;
    }
    
    .main-grid {
        padding: var(--space-3);
    }
    
    .panel {
        margin-bottom: var(--space-4);
    }
    
    .panel-header h2 {
        font-size: var(--font-size-lg);
    }
    
    .header-title h1 {
        font-size: var(--font-size-lg);
    }
    
    .header-title i {
        font-size: var(--font-size-2xl);
    }
}

/* ============================================
   ENHANCED TOOLTIPS & RECOMMENDATIONS
   ============================================ */

/* Enhanced Tooltip Styles */
.tooltip-content {
    max-width: 420px;
    min-width: 280px;
}

.tooltip-header {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    align-items: flex-start;
}

.tooltip-image {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    object-fit: cover;
    border: 2px solid var(--border-light);
}

.tooltip-title-section {
    flex: 1;
}

.tooltip-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.tooltip-type-rarity {
    display: flex;
    gap: 8px;
    margin-bottom: 4px;
}

.tooltip-type {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
}

.tooltip-class {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

.tooltip-section {
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-light);
}

.tooltip-section:last-child {
    margin-bottom: 0;
    border-bottom: none;
}

.tooltip-section-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-row, .prop-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 3px;
    font-size: 13px;
}

.stat-label, .prop-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-value, .prop-value {
    color: var(--text-primary);
    font-weight: 600;
}

.tooltip-effect {
    font-size: 13px;
    line-height: 1.4;
    color: var(--text-primary);
    background: var(--bg-secondary);
    padding: 8px;
    border-radius: 6px;
    border-left: 3px solid var(--primary-500);
}

.recipe-item {
    background: var(--bg-secondary);
    padding: 8px;
    border-radius: 6px;
    margin-bottom: 6px;
    border-left: 3px solid var(--warning);
}

.recipe-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.recipe-ingredients, .recipe-catalysts {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 2px;
}

.recipe-label {
    font-weight: 600;
}

.recipe-cost {
    font-size: 12px;
    color: var(--primary-600);
    font-weight: 600;
}

.used-recipe-item {
    padding: 4px 0;
    border-bottom: 1px solid var(--border-light);
}

.used-recipe-result {
    font-weight: 600;
    color: var(--text-primary);
}

.more-recipes {
    font-size: 12px;
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 4px;
}

.synergy-item {
    margin-bottom: 6px;
}

.synergy-name {
    font-weight: 600;
    color: var(--primary-600);
}

.synergy-desc {
    font-size: 12px;
    color: var(--text-secondary);
    display: block;
    margin-top: 2px;
    line-height: 1.3;
}

.shop-section {
    background: var(--bg-tertiary);
    padding: 8px;
    border-radius: 6px;
    margin-top: 8px;
}

.shop-cost {
    font-size: 13px;
    color: var(--text-primary);
}

.cost-value {
    font-weight: 700;
    color: var(--primary-600);
}

/* Enhanced Recommendations */
.recommendation-item {
    background: var(--bg-glass);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.recommendation-item:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transform: translateY(-2px);
    border-color: var(--primary-300);
}

.recommendation-header {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.recommendation-image {
    width: 56px;
    height: 56px;
    border-radius: 8px;
    object-fit: cover;
    border: 2px solid var(--border-light);
}

.recommendation-info {
    flex: 1;
}

.recommendation-title {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 6px;
}

.recommendation-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.recommendation-stats {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.stat-badge {
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.type-badge {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.cost-badge {
    background: var(--gradient-warning);
    color: white;
}

.class-badge {
    background: var(--primary-100);
    color: var(--primary-700);
}

.recommendation-combat-stats {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 10px;
    padding: 8px;
    background: var(--bg-secondary);
    border-radius: 6px;
}

.combat-stat {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.combat-stat i {
    color: var(--primary-500);
    width: 12px;
    text-align: center;
}

.recommendation-effect {
    margin-bottom: 12px;
}

.effect-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.effect-description {
    font-size: 13px;
    line-height: 1.4;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    padding: 8px;
    border-radius: 6px;
    border-left: 3px solid var(--primary-400);
}

.recommendation-reason {
    margin-bottom: 12px;
}

.reason-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.reason-list {
    margin: 0;
    padding-left: 16px;
}

.reason-list li {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 3px;
    line-height: 1.3;
}

.recommendation-recipes, .recommendation-synergies, .recommendation-uses {
    margin-bottom: 10px;
}

.recipes-title, .synergies-title, .uses-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.recipe-detail {
    font-size: 12px;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 4px 8px;
    border-radius: 4px;
    margin-bottom: 4px;
}

.recipe-ingredients {
    font-weight: 600;
    color: var(--text-primary);
}

.recipe-catalyst {
    color: var(--warning);
    font-style: italic;
}

.synergies-list, .uses-list {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.synergy-tag, .use-tag {
    font-size: 11px;
    padding: 3px 6px;
    border-radius: 8px;
    font-weight: 500;
}

.synergy-tag {
    background: var(--primary-100);
    color: var(--primary-700);
}

.use-tag {
    background: var(--secondary-200);
    color: var(--secondary-700);
}

.use-tag.more {
    background: var(--warning);
    color: white;
}

/* Analysis Sections */
.analysis-section {
    background: var(--bg-glass);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
}

.analysis-section h3 {
    margin: 0 0 12px 0;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.synergy-grid, .build-grid, .recipe-grid {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.synergy-card, .build-card, .recipe-card {
    background: var(--bg-secondary);
    padding: 12px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-400);
}

.synergy-name, .build-name, .recipe-name {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.synergy-description, .build-description {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.4;
    margin-bottom: 8px;
}

.synergy-items {
    font-size: 12px;
    color: var(--text-secondary);
}

.build-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.build-progress {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary-600);
    background: var(--primary-100);
    padding: 4px 8px;
    border-radius: 12px;
}

.build-status {
    font-size: 12px;
}

.build-have {
    color: var(--success);
    margin-bottom: 4px;
}

.build-need {
    color: var(--text-secondary);
}

.recipe-status {
    font-size: 12px;
    font-weight: 600;
    color: var(--primary-600);
    background: var(--primary-100);
    padding: 4px 8px;
    border-radius: 4px;
    display: inline-block;
    margin-top: 4px;
}

/* Enhanced Recipe Cards */
.recipe-card {
    transition: all 0.3s ease;
}

.recipe-card.priority-high {
    border-left-color: var(--success);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(16, 185, 129, 0.02));
}

.recipe-card.priority-medium {
    border-left-color: var(--warning);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.05), rgba(245, 158, 11, 0.02));
}

.recipe-card.priority-low {
    border-left-color: var(--secondary-400);
    background: linear-gradient(135deg, rgba(148, 163, 184, 0.05), rgba(148, 163, 184, 0.02));
}

.recipe-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.recipe-completeness {
    font-size: 14px;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 12px;
    background: var(--primary-100);
    color: var(--primary-700);
}

.recipe-missing {
    font-size: 12px;
    color: var(--error);
    margin-bottom: 4px;
    font-weight: 500;
}

.recipe-catalysts {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.catalyst-label {
    font-weight: 600;
    color: var(--text-primary);
}

.recipe-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* ============================================
   ITEM TOOLTIP SYSTEM
   ============================================ */

.item-tooltip {
    position: absolute;
    z-index: var(--z-tooltip);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
    max-width: 380px;
    font-size: var(--font-size-sm);
    line-height: 1.4;
    transform: translateY(-5px);
}

.item-tooltip.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.tooltip-content {
    background: linear-gradient(135deg, 
        rgba(15, 23, 42, 0.98) 0%, 
        rgba(30, 41, 59, 0.98) 100%);
    border: 2px solid var(--border-accent);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl), 0 0 30px rgba(37, 99, 235, 0.3);
    backdrop-filter: blur(20px);
    overflow: hidden;
    position: relative;
    color: #ffffff; /* Ensure all text defaults to white */
}

.tooltip-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        var(--primary-400), 
        var(--primary-600), 
        var(--primary-400));
    animation: shimmer 2s ease-in-out infinite;
}

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

.tooltip-header {
    padding: var(--space-4);
    background: linear-gradient(135deg, 
        rgba(37, 99, 235, 0.1), 
        rgba(59, 130, 246, 0.05));
    border-bottom: 1px solid rgba(37, 99, 235, 0.2);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.tooltip-image {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    border: 2px solid var(--border-accent);
    background: var(--bg-dark);
    object-fit: cover;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.tooltip-title-section {
    flex: 1;
    min-width: 0;
}

.tooltip-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-inverse);
    margin-bottom: var(--space-1);
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.tooltip-type-rarity {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-1);
}

.tooltip-type {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-inverse);
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tooltip-rarity {
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.tooltip-class {
    font-size: var(--font-size-xs);
    color: #cbd5e1; /* Light gray for class info */
    font-weight: 500;
}

.tooltip-section {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.tooltip-section:last-child {
    border-bottom: none;
}

.tooltip-section-title {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--primary-400);
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tooltip-effect {
    color: #64748b; /* Darker gray for much better readability */
    line-height: 1.5;
    font-weight: 500;
}

.stat-row, .prop-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-1);
}

.stat-row:last-child, .prop-row:last-child {
    margin-bottom: 0;
}

.stat-label, .prop-label {
    color: #94a3b8; /* Medium gray for labels */
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.stat-value, .prop-value {
    color: #ffffff; /* Pure white for values */
    font-weight: 700;
    font-size: var(--font-size-sm);
}

.tooltip-recipes, .tooltip-used-recipes {
    margin-top: var(--space-2);
}

.recipe-item, .used-recipe-item {
    background: rgba(37, 99, 235, 0.15); /* Slightly more opaque blue background */
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
    border-left: 3px solid var(--primary-400);
}

.recipe-item:last-child, .used-recipe-item:last-child {
    margin-bottom: 0;
}

.recipe-name, .used-recipe-result {
    font-weight: 700;
    color: #ffffff; /* Pure white for recipe names */
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-1);
}

.recipe-ingredients, .recipe-catalysts, .recipe-cost {
    font-size: var(--font-size-xs);
    color: #cbd5e1; /* Light gray for recipe details */
    margin-bottom: var(--space-1);
}

.recipe-label {
    font-weight: 600;
    color: #60a5fa; /* Bright blue for labels */
}

.more-recipes {
    font-size: var(--font-size-xs);
    color: #94a3b8; /* Medium gray for "more recipes" text */
    font-style: italic;
    text-align: center;
    margin-top: var(--space-2);
}

.tooltip-synergies {
    margin-top: var(--space-2);
}

.synergy-item {
    background: rgba(16, 185, 129, 0.15); /* Slightly more opaque green background */
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
    border-left: 3px solid #10b981;
}

.synergy-item:last-child {
    margin-bottom: 0;
}

.synergy-name {
    font-weight: 700;
    color: #34d399; /* Bright green for synergy names */
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-1);
}

.synergy-desc {
    font-size: var(--font-size-xs);
    color: #e2e8f0; /* Light gray for descriptions */
    line-height: 1.4;
}

.shop-section {
    background: rgba(37, 99, 235, 0.15); /* Slightly more opaque blue */
}

.shop-cost {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-1);
    color: #ffffff; /* White text for shop cost */
}

.cost-value {
    font-weight: 700;
    color: #fbbf24; /* Bright yellow/gold for cost values */
    font-size: var(--font-size-lg);
}

.shop-availability {
    font-size: var(--font-size-xs);
    color: #cbd5e1; /* Light gray for availability info */
}

/* Enhanced Rarity Colors for Tooltips */
.tooltip-rarity.rarity-indicator-common {
    background: linear-gradient(135deg, #94a3b8, #64748b);
    color: white;
}

.tooltip-rarity.rarity-indicator-rare {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
}

.tooltip-rarity.rarity-indicator-epic {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    color: white;
}

.tooltip-rarity.rarity-indicator-legendary {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
}

.tooltip-rarity.rarity-indicator-godly {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
}

.tooltip-rarity.rarity-indicator-unique {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
}

/* Enhanced Item Descriptions in Recommendations */
.recommendation-item {
    background: var(--bg-glass);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-4);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.recommendation-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-400), var(--primary-600));
}

.recommendation-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-400);
}

.recommendation-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    margin-bottom: var(--space-3);
}

.recommendation-image {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-accent);
    background: var(--bg-dark);
    object-fit: cover;
    flex-shrink: 0;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
}

.recommendation-info {
    flex: 1;
    min-width: 0;
}

.recommendation-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-2);
    flex-wrap: wrap;
    gap: var(--space-2);
}

.recommendation-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.recommendation-priority {
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.recommendation-priority.priority-high {
    background: linear-gradient(135deg, var(--success), #059669);
    color: white;
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.3);
}

.recommendation-priority.priority-medium {
    background: linear-gradient(135deg, var(--warning), #d97706);
    color: white;
    box-shadow: 0 2px 4px rgba(245, 158, 11, 0.3);
}

.recommendation-priority.priority-low {
    background: linear-gradient(135deg, var(--secondary-500), var(--secondary-600));
    color: white;
}

.recommendation-stats {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.stat-badge {
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    background: var(--secondary-100);
    color: var(--secondary-700);
    border: 1px solid var(--secondary-200);
}

.type-badge {
    background: linear-gradient(135deg, var(--primary-100), var(--primary-50));
    color: var(--primary-700);
    border-color: var(--primary-200);
}

.cost-badge {
    background: linear-gradient(135deg, var(--warning) 0%, #d97706 100%);
    color: white;
    border: none;
    font-weight: 700;
}

.class-badge {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    color: white;
    border: none;
}

.recommendation-combat-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-2);
    margin: var(--space-3) 0;
    padding: var(--space-3);
    background: rgba(37, 99, 235, 0.05);
    border-radius: var(--radius-md);
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.combat-stat {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.combat-stat i {
    color: var(--primary-500);
    width: 16px;
    text-align: center;
}

.recommendation-effect {
    margin: var(--space-3) 0;
    padding: var(--space-3);
    background: rgba(16, 185, 129, 0.05);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--success);
}

.effect-title {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--success);
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.effect-description {
    color: var(--text-primary);
    line-height: 1.6;
    font-weight: 500;
}

.recommendation-reason {
    margin: var(--space-3) 0;
}

.reason-title {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.reason-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.reason-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    margin-bottom: var(--space-1);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.reason-list li::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}

.recommendation-recipes, .recommendation-synergies, .recommendation-uses {
    margin-top: var(--space-3);
    padding: var(--space-3);
    background: var(--secondary-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--secondary-200);
}

.recipes-title, .synergies-title, .uses-title {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.recipe-detail {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-1);
}

.recipe-ingredients {
    font-weight: 600;
    color: var(--text-primary);
}

.recipe-catalyst {
    color: var(--primary-600);
    font-style: italic;
}

.synergies-list, .uses-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.synergy-tag, .use-tag {
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    background: var(--primary-100);
    color: var(--primary-700);
    border: 1px solid var(--primary-200);
}

.use-tag.more {
    background: var(--secondary-100);
    color: var(--secondary-700);
    border-color: var(--secondary-200);
}

/* Rarity Indicator Styling for Items */
.rarity-indicator,
.item-rarity-indicator {
    position: absolute;
    bottom: 4px;
    right: 4px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.rarity-indicator-common,
.item-rarity-indicator.rarity-indicator-common {
    background: linear-gradient(135deg, #94a3b8, #64748b);
}

.rarity-indicator-rare,
.item-rarity-indicator.rarity-indicator-rare {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}

.rarity-indicator-epic,
.item-rarity-indicator.rarity-indicator-epic {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.rarity-indicator-legendary,
.item-rarity-indicator.rarity-indicator-legendary {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.rarity-indicator-godly,
.item-rarity-indicator.rarity-indicator-godly {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.rarity-indicator-unique,
.item-rarity-indicator.rarity-indicator-unique {
    background: linear-gradient(135deg, #10b981, #059669);
}

/* Item slot styling to support tooltips */
.item-slot {
    position: relative;
    transition: all var(--transition-base);
    cursor: pointer;
}

.item-slot:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.item-slot.filled {
    border-color: var(--primary-400);
}

.item-image {
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.item-slot:hover .item-image {
    transform: scale(1.05);
    filter: brightness(1.1);
}

/* Enhanced selectable items in modal */
.selectable-item {
    position: relative;
    transition: all var(--transition-base);
    cursor: pointer;
}

.selectable-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-400);
}

.selectable-item .item-rarity-indicator {
    position: absolute;
    bottom: 6px;
    right: 6px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Enhanced recommendation styling */
.recommendation-image {
    transition: all var(--transition-base);
    cursor: pointer;
}

.recommendation-image:hover {
    transform: scale(1.05);
    filter: brightness(1.1) drop-shadow(0 6px 12px rgba(0,0,0,0.3));
}

/* ============================================
   ACCESSIBILITY ENHANCEMENTS
   ============================================ */

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

/* Focus styles for keyboard navigation */
.btn:focus,
.class-option:focus,
.item-slot:focus,
.filter-tab:focus,
.rarity-filter:focus,
.selectable-item:focus {
    outline: 2px solid var(--primary-600);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-light: #000000;
        --border-medium: #000000;
        --text-secondary: #000000;
        --text-tertiary: #000000;
    }
}

/* Print styles */
@media print {
    .modal, 
    .search-controls,
    .btn,
    .header-stats {
        display: none !important;
    }
    
    .app-container {
        background: white;
    }
    
    .panel {
        box-shadow: none;
        border: 1px solid #000;
        break-inside: avoid;
    }
}