/* ========================================
   QuantumStore — Modern E-Commerce Design System
   ======================================== */

:root {
    --eco-font-primary: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --eco-font-heading: 'Plus Jakarta Sans', 'Inter', sans-serif;
    --eco-primary: #09090B;
    --eco-primary-hover: #18181B;
    --eco-accent: #2563EB;
    --eco-radius-sm: 8px;
    --eco-radius: 14px;
    --eco-radius-lg: 20px;
    --eco-shadow-subtle: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --eco-shadow-card: 0 4px 12px rgba(0, 0, 0, 0.03), 0 1px 2px rgba(0, 0, 0, 0.04);
    --eco-shadow-hover: 0 12px 28px -4px rgba(0, 0, 0, 0.08), 0 4px 12px -2px rgba(0, 0, 0, 0.04);
    --eco-border: #E4E4E7;
}

* {
    box-sizing: border-box;
}

html, body {
    font-family: var(--eco-font-primary);
    background-color: var(--mud-palette-background);
    color: var(--mud-palette-text-primary);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

/* Glassmorphism Navigation Header */
.glass-effect {
    background: rgba(255, 255, 255, 0.85) !important;
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--mud-palette-divider) !important;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.mud-dark .glass-effect {
    background: rgba(9, 9, 11, 0.85) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
}

/* Main Layout Positioning */
.eco-main-content {
    min-height: 100vh;
    padding-top: 80px; 
    padding-bottom: 48px;
}

/* Loading Screen */
.loading-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background: #09090B;
    overflow: hidden;
}

.loading-content {
    text-align: center;
    color: #FAFAFA;
    animation: fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-top: 2px solid #FAFAFA;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    margin: 0 auto 16px auto;
}

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

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

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--mud-palette-lines-default);
    border-radius: 99px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--mud-palette-text-secondary);
}

/* Premium Typography Enhancements */
h1, h2, h3, h4, h5, h6,
.mud-typography-h1, .mud-typography-h2, .mud-typography-h3, 
.mud-typography-h4, .mud-typography-h5, .mud-typography-h6 {
    font-family: var(--eco-font-heading) !important;
    letter-spacing: -0.025em !important;
    color: var(--mud-palette-text-primary);
    font-weight: 700;
}

/* Tabular figures for prices */
.tabular-nums {
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.01em;
}

/* Modern Card Base Styling */
.mud-card {
    border-radius: var(--eco-radius) !important;
    background-color: var(--mud-palette-surface) !important;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease, border-color 0.25s ease !important;
}

/* Button Refinements */
.mud-button-filled {
    border-radius: var(--eco-radius-sm) !important;
    font-weight: 600 !important;
    letter-spacing: -0.01em !important;
    text-transform: none !important;
    box-shadow: var(--eco-shadow-subtle) !important;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.mud-button-filled:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12) !important;
}

.mud-button-outlined {
    border-radius: var(--eco-radius-sm) !important;
    font-weight: 600 !important;
    letter-spacing: -0.01em !important;
    text-transform: none !important;
    transition: all 0.2s ease !important;
}

/* Blazor error UI */
#blazor-error-ui {
    background: #09090B;
    color: #FAFAFA;
    text-align: center;
    padding: 0.875rem 1.5rem;
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: auto;
    min-width: 320px;
    border-radius: 99px;
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.3);
    z-index: 9999;
    display: none;
    border: 1px solid rgba(255, 255, 255, 0.15);
    font-size: 0.875rem;
}

#blazor-error-ui .reload {
    color: #38BDF8;
    text-decoration: underline;
    margin-left: 8px;
}

/* Anim Helper */
.slide-up {
    animation: slideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive Container Padding */
@media (max-width: 600px) {
    .eco-main-content {
        padding-top: 72px;
        padding-bottom: 32px;
    }
}

/* ========================================
   Optimized E-Commerce Filter Bar 
   ======================================== */
.main-filter-bar {
    display: flex;
    align-items: center;
    background: var(--mud-palette-surface);
    border: 1px solid var(--mud-palette-divider);
    border-radius: var(--eco-radius);
    padding: 10px 18px;
    margin-bottom: 28px;
    gap: 16px;
    box-shadow: var(--eco-shadow-card);
    position: relative;
    z-index: 10;
    transition: all 0.2s ease;
}

.mud-dark .main-filter-bar {
    background: rgba(24, 24, 27, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.filter-header {
    border-right: 1px solid var(--mud-palette-divider);
    padding-right: 16px;
    flex-shrink: 0;
}

.filter-icon-bg {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(var(--mud-palette-text-primary-rgb), 0.04);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--mud-palette-divider);
}

.filter-items-container {
    display: flex;
    flex: 1;
    gap: 10px;
    align-items: center;
    overflow-x: auto;
    scrollbar-width: none;
}

.filter-items-container::-webkit-scrollbar {
    display: none;
}

.filter-item {
    min-width: 160px;
    background: rgba(var(--mud-palette-text-primary-rgb), 0.03);
    border-radius: 10px;
    padding: 2px 8px;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.mud-dark .filter-item {
    background: rgba(255, 255, 255, 0.03);
}

.filter-item:hover {
    background: rgba(var(--mud-palette-text-primary-rgb), 0.06);
    border-color: var(--mud-palette-divider);
}

.modern-filter-select .mud-input,
.modern-filter-field .mud-input {
    color: var(--mud-palette-text-primary) !important;
    font-size: 0.85rem !important;
    font-weight: 500 !important;
}

.modern-filter-select .mud-input-underline:before,
.modern-filter-select .mud-input-underline:after,
.modern-filter-field .mud-input-underline:before,
.modern-filter-field .mud-input-underline:after {
    display: none !important;
}

@media (max-width: 960px) {
    .main-filter-bar {
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        gap: 12px;
    }
    .filter-header {
        border-right: none;
        border-bottom: 1px solid var(--mud-palette-divider);
        padding-right: 0;
        padding-bottom: 10px;
    }
    .filter-items-container {
        flex-direction: column;
        overflow-x: visible;
        width: 100%;
    }
    .filter-item {
        width: 100%;
        min-width: auto;
    }
}