/* ==========================================================================
   VI-DIG DESIGN SYSTEM: BAUHAUS & INDUSTRIAL MODERNISM (Vanilla CSS)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens & Root Variables
   -------------------------------------------------------------------------- */
:root {
    /* Fonts */
    --font-sans: 'Inter', 'Noto Sans JP', sans-serif;
    --font-mono: 'Courier New', Courier, monospace; /* For mechanical data density */
    
    /* Strict Functional Palette */
    --bg-base: #000000;         /* Absolute void black */
    --bg-panel: #0a0a0c;        /* Stark structural gray */
    --bg-card: #121214;         /* High-contrast element fill */
    --bg-input: #08080a;        /* Recessed slot background */
    
    /* Hairline borders for blueprints/catalog dividers */
    --border-thin: #202024;     
    --border-focus: #44444a;
    
    /* Grayscale Text */
    --text-primary: #ffffff;    
    --text-secondary: #8e8e93;  
    --text-dark: #4e4e54;       
    
    /* Primary Signal Colors (Warning Indicators on Hardware) */
    --color-sale: #ff3b30;      /* Signal Red (Urgent / Sale) */
    --color-point: #ffcc00;     /* Signal Yellow (Caution / Points) */
    --color-info: #0a84ff;      /* Signal Blue (System / New Info) */
    --color-success: #30d158;   /* Signal Green (Stable / Purchase) */
    --color-purple: #bf5af2;    /* VR Indicator */

    /* Bauhaus Strict Geometry */
    --radius-flat: 0px;         /* Absolute straight edges */
    --radius-tech: 2px;         /* Minimum chamfer for feel */
    --transition-fast: 0.1s steps(2); /* Mechanical instant toggle shift */
    --transition-smooth: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   2. Reset & Global Layout
   -------------------------------------------------------------------------- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Base Scrollbars styled flat */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
    background: var(--border-thin);
    border-radius: var(--radius-flat);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-dark);
}

/* --------------------------------------------------------------------------
   3. Scaffold: Layout Structure
   -------------------------------------------------------------------------- */
.app-container {
    display: flex;
    min-height: 100vh;
    width: 100vw;
}

/* App Sidebar (Catalog Control Center) */
.app-sidebar {
    width: 280px;
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border-thin);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    z-index: 50;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-thin);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.logo-text span.text-accent {
    color: var(--color-sale);
}

/* Nav items styled like rigid selector keys */
.sidebar-nav {
    display: flex;
    flex-direction: column;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-thin);
}

.nav-item {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    text-align: left;
    font-size: 0.85rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: var(--transition-fast);
    border-left: 2px solid transparent;
}

.nav-item:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.02);
}

.nav-item.active {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.04);
    border-left-color: var(--text-primary);
}

.nav-icon {
    width: 16px;
    height: 16px;
    stroke-width: 2.5;
}

/* Sidebar filter controls (Blueprint panel controls) */
.sidebar-filters-container {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    overflow-y: auto;
    flex-grow: 1;
}

.filter-group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
}

.filter-group-header h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    font-weight: 800;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.filter-group label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
}

/* --------------------------------------------------------------------------
   4. Form Elements (Recessed Dial Knobs & Sliders)
   -------------------------------------------------------------------------- */
select, .date-input {
    width: 100%;
    padding: 0.45rem 0.6rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-thin);
    border-radius: var(--radius-flat);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    cursor: pointer;
    outline: none;
    transition: var(--transition-smooth);
    color-scheme: dark;
}

select:focus, .date-input:focus {
    border-color: var(--border-focus);
}

/* Stark Sliders */
input[type="range"].slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 3px;
    background: var(--border-thin);
    outline: none;
    border-radius: var(--radius-flat);
}

input[type="range"].slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    background: var(--text-primary);
    cursor: pointer;
    border-radius: var(--radius-flat);
    transition: var(--transition-fast);
}

input[type="range"].slider::-webkit-slider-thumb:hover {
    background: var(--color-sale);
}

.range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.65rem;
    color: var(--text-dark);
    font-family: var(--font-mono);
}

.sidebar-footer {
    padding: 1.25rem;
    border-top: 1px solid var(--border-thin);
    font-size: 0.7rem;
    color: var(--text-dark);
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    background-color: var(--bg-panel);
}

.footer-links {
    display: flex;
    gap: 0.5rem;
}

.footer-links a {
    color: var(--text-dark);
    text-decoration: none;
}
.footer-links a:hover {
    color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   5. Main Catalog Content Area
   -------------------------------------------------------------------------- */
.app-main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* Technical Header Input bar */
.main-header {
    height: 60px;
    border-bottom: 1px solid var(--border-thin);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    background-color: var(--bg-base);
    z-index: 40;
}

.search-bar-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-grow: 1;
    max-width: 600px;
}

.search-icon {
    width: 16px;
    height: 16px;
    color: var(--text-secondary);
    stroke-width: 2.5;
}

.search-bar-wrapper input {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
}

.search-bar-wrapper input::placeholder {
    color: var(--text-dark);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background-color: transparent;
    border: 1px solid var(--border-thin);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-fast);
    outline: none;
    padding: 0;
}

.icon-btn svg {
    width: 16px;
    height: 16px;
}

.icon-btn:hover {
    background-color: var(--text-primary);
    color: var(--bg-base);
    border-color: var(--text-primary);
}

/* Main content layout viewport */
.content-body {
    padding: 2rem;
    overflow-y: auto;
    flex-grow: 1;
    position: relative;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-thin);
    padding-bottom: 1rem;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.page-subtitle {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.15rem;
}

.sort-selector-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sort-selector-wrapper label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 700;
    white-space: nowrap;
}

.sort-selector-wrapper select {
    width: auto;
    padding: 0.35rem 1.75rem 0.35rem 0.5rem;
}

/* Active dismissible tag row */
.active-filters-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

/* --------------------------------------------------------------------------
   6. Data Grid: Product Card Layout
   -------------------------------------------------------------------------- */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
}

/* Product Card - Structural Industrial Spec Sheet style */
.product-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-thin);
    border-radius: var(--radius-flat);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: border-color var(--transition-smooth);
}

.product-card:hover {
    border-color: var(--border-focus);
}

.product-badges {
    position: absolute;
    top: 8px;
    left: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    z-index: 10;
}

/* Flat stamp badges */
.card-badge {
    padding: 2px 5px;
    font-size: 0.6rem;
    font-weight: 700;
    border-radius: var(--radius-tech);
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.badge-discount {
    background-color: var(--color-sale);
    color: #ffffff;
}

.badge-points {
    background-color: var(--bg-base);
    border: 1px solid var(--color-point);
    color: var(--color-point);
}

.badge-new {
    background-color: var(--bg-base);
    border: 1px solid var(--color-info);
    color: var(--color-info);
}

.badge-vr {
    background-color: var(--bg-base);
    border: 1px solid var(--color-purple);
    color: var(--color-purple);
}

.badge-4k {
    background-color: var(--bg-base);
    border: 1px solid var(--color-point);
    color: var(--color-point);
}

.badge-8k {
    background-color: var(--bg-base);
    border: 1px solid #ff9f0a;
    color: #ff9f0a;
}

.badge-ending-soon {
    background-color: var(--color-sale);
    color: #ffffff;
    animation: pulse 2s infinite;
}

.badge-campaign {
    background-color: var(--bg-base);
    border: 1px solid var(--color-sale);
    color: var(--color-sale);
}

@keyframes pulse {
    0% { opacity: 0.8; }
    50% { opacity: 1; }
    100% { opacity: 0.8; }
}

/* Image containment */
.product-cover-container {
    aspect-ratio: 16/10;
    position: relative;
    overflow: hidden;
    background-color: var(--bg-base);
    border-bottom: 1px solid var(--border-thin);
}

.product-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(10%) contrast(105%); /* Technical photographic styling */
}

/* Stamped tech layout fallback */
.product-cover-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: repeating-linear-gradient(
        45deg,
        #0a0a0c,
        #0a0a0c 10px,
        #121214 10px,
        #121214 20px
    ); /* Engineering print stripes */
    color: var(--text-secondary);
    padding: 1rem;
    text-align: center;
    font-family: var(--font-mono);
}

.placeholder-badge {
    font-size: 0.6rem;
    font-weight: 700;
    border: 1px solid var(--text-dark);
    padding: 1px 4px;
    margin-bottom: 0.5rem;
}

.placeholder-code {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.placeholder-maker {
    font-size: 0.6rem;
    margin-top: 0.25rem;
}

/* Card details (Technical specification readout) */
.product-details {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-title {
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1.4;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 2.8em;
}

.product-maker-row {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.4rem;
}

.product-meta-row {
    font-family: var(--font-mono);
    font-size: 0.65rem;
}

.product-price-row {
    margin-top: auto;
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    padding-top: 0.5rem;
}

.price-current {
    font-size: 1.2rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--text-primary);
}

.price-current::after {
    content: "円";
    font-size: 0.7rem;
    margin-left: 1px;
}

.price-original {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dark);
    text-decoration: line-through;
}

.price-net-cost {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--color-success);
    margin-top: 0.15rem;
}

/* Mechanically toggled actions */
.product-card-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-top: 1px solid var(--border-thin);
}

/* --------------------------------------------------------------------------
   7. Buttons (Toggle Plate Style)
   -------------------------------------------------------------------------- */
.btn {
    border: none;
    background: transparent;
    padding: 0.5rem 0.75rem;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    text-align: center;
    outline: none;
    transition: var(--transition-fast);
    text-decoration: none;
}

/* Button inverts black/white instantly */
.btn-detail {
    color: var(--text-primary);
    background-color: transparent;
    border-right: 1px solid var(--border-thin);
}

.btn-detail:hover {
    background-color: var(--text-primary);
    color: var(--bg-base);
}

.btn-buy {
    color: var(--bg-base);
    background-color: var(--text-primary);
}

.btn-buy:hover {
    background-color: var(--bg-base);
    color: var(--text-primary);
}

/* Filter Tag Chip style */
.filter-tag {
    background-color: var(--bg-card);
    border: 1px solid var(--border-thin);
    padding: 3px 8px;
    font-size: 0.7rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-radius: var(--radius-tech);
}

.filter-tag-close {
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.filter-tag-close:hover {
    color: var(--color-sale);
}

/* --------------------------------------------------------------------------
   8. Layout: Settings Form Panels
   -------------------------------------------------------------------------- */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

@media (max-width: 900px) {
    .settings-grid {
        grid-template-columns: 1fr;
    }
}

.settings-card {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-thin);
    padding: 2rem;
}

.settings-card h2 {
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.card-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.settings-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
}

.form-group input[type="text"],
.form-group input[type="password"] {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-thin);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    outline: none;
    border-radius: var(--radius-flat);
}

.form-group input:focus {
    border-color: var(--border-focus);
}

.input-hint {
    font-size: 0.7rem;
    color: var(--text-dark);
}

/* Plate Button styles */
.primary-btn {
    border: 1px solid var(--text-primary);
    background-color: var(--text-primary);
    color: var(--bg-base);
    padding: 0.65rem 1.25rem;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.primary-btn:hover {
    background-color: var(--bg-base);
    color: var(--text-primary);
}

.control-actions {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.action-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border-thin);
    padding-bottom: 1.25rem;
}

.action-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.action-text h3 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.action-text p {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.secondary-btn {
    border: 1px solid var(--text-primary);
    background-color: transparent;
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.secondary-btn:hover {
    background-color: var(--text-primary);
    color: var(--bg-base);
}

.danger-btn {
    border: 1px solid var(--color-sale);
    background-color: transparent;
    color: var(--color-sale);
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.danger-btn:hover {
    background-color: var(--color-sale);
    color: #ffffff;
}

/* --------------------------------------------------------------------------
   9. Detailed Oscilloscope Modal
   -------------------------------------------------------------------------- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.85); /* Solid shadow */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    width: 90%;
    max-width: 1000px;
    max-height: 90vh;
    background-color: var(--bg-panel);
    border: 1px solid var(--border-focus);
    border-radius: var(--radius-flat);
    position: relative;
    overflow-y: auto;
}

.modal-close-btn {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    z-index: 100;
    transition: var(--transition-fast);
}

.modal-close-btn:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 2rem;
}

/* Modal Campaign banner */
.modal-campaign-banner {
    background: var(--bg-base);
    border: 1px solid var(--color-sale);
    padding: 0.75rem 1.25rem;
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.modal-campaign-banner.campaign-urgent {
    background-color: rgba(255, 69, 58, 0.05);
    border-color: var(--color-sale);
    box-shadow: 0 0 15px rgba(255, 69, 58, 0.1);
}

.modal-campaign-banner .banner-title {
    font-weight: 700;
    color: var(--color-sale);
}

.modal-campaign-banner .banner-duration {
    color: var(--text-secondary);
}

/* Modal dynamic delivery format selector (Scientific segment selector style) */
.modal-delivery-selector {
    display: flex;
    gap: 0;
    margin-bottom: 1.25rem;
    border: 1px solid var(--border-thin);
    background-color: var(--bg-input);
    width: fit-content;
}

.delivery-tab-btn {
    border: none;
    background: transparent;
    padding: 0.45rem 1.25rem;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
    border-right: 1px solid var(--border-thin);
    outline: none;
}

.delivery-tab-btn:last-child {
    border-right: none;
}

.delivery-tab-btn:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.02);
}

.delivery-tab-btn.active {
    color: var(--bg-base);
    background-color: var(--text-primary);
}

/* Details grid layout */
.modal-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
}

@media (max-width: 768px) {
    .modal-grid {
        grid-template-columns: 1fr;
    }
}

.modal-info-panel {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.modal-image-wrapper {
    width: 100%;
    aspect-ratio: 16/10;
    overflow: hidden;
    border: 1px solid var(--border-thin);
}

.modal-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-title {
    font-size: 1.1rem;
    font-weight: 800;
    line-height: 1.4;
}

.modal-metadata {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    border-top: 1px solid var(--border-thin);
    padding-top: 0.75rem;
}

.metadata-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
    padding: 0.3rem 0;
}

.meta-label {
    color: var(--text-secondary);
    font-weight: 700;
}

.meta-val {
    color: var(--text-primary);
    text-align: right;
    font-family: var(--font-mono);
}

/* Modal Format Badges */
.modal-format-badge {
    display: inline-block;
    padding: 1px 4px;
    background-color: var(--bg-base);
    border: 1px solid var(--border-thin);
    border-radius: var(--radius-tech);
    font-size: 0.6rem;
    color: var(--text-primary);
    margin-left: 4px;
    font-weight: 700;
    text-transform: uppercase;
}

.modal-tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.modal-actress-tag {
    font-size: 0.7rem;
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid var(--border-thin);
    padding: 2px 6px;
    transition: var(--transition-fast);
}

.modal-actress-tag:hover {
    background-color: var(--text-primary);
    color: var(--bg-base);
}

/* Oscilloscope panel config */
.modal-chart-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.chart-stats-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
}

.stat-item-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border-thin);
    padding: 0.75rem 1rem;
    font-family: var(--font-mono);
}

.stat-lbl {
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-weight: 700;
}

.stat-val {
    font-size: 1.1rem;
    font-weight: 800;
    margin-top: 0.25rem;
}

.stat-val.low-green {
    color: var(--color-success);
}

.stat-val.sale-red {
    color: var(--color-sale);
}

.chart-canvas-container {
    height: 320px;
    position: relative;
    border: 1px solid var(--border-thin);
    background-color: var(--bg-base); /* Hardware dark oscilloscope window */
    padding: 1rem;
}

/* Mechanical Affiliate Generator card */
.affiliate-link-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-thin);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.aff-title-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 0.75rem;
    font-weight: 700;
}

.subid-input-wrapper input {
    width: 100%;
    padding: 0.4rem 0.6rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-thin);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.75rem;
    outline: none;
}

.subid-input-wrapper input:focus {
    border-color: var(--border-focus);
}

.aff-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.btn-copy-link {
    border: 1px solid var(--text-primary);
    background-color: transparent;
    color: var(--text-primary);
}

.btn-copy-link:hover {
    background-color: var(--text-primary);
    color: var(--bg-base);
}

.btn-modal-buy {
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 700;
}

/* --------------------------------------------------------------------------
   10. Interactive Loading States & Toasts
   -------------------------------------------------------------------------- */
.loading-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    gap: 1rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-thin);
    border-top-color: var(--text-primary);
    animation: spin 1s infinite steps(8); /* Mechanical step spin */
}

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

.empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 250px;
    border: 1px dashed var(--border-thin);
    color: var(--text-secondary);
    gap: 0.5rem;
}

.empty-state svg {
    width: 24px;
    height: 24px;
    color: var(--text-dark);
}

.empty-state h3 {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
}

.empty-state p {
    font-size: 0.75rem;
}

.notification-toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--bg-panel);
    border: 1px solid var(--text-primary);
    border-left: 4px solid var(--text-primary);
    padding: 0.75rem 1.25rem;
    z-index: 2000;
    font-size: 0.8rem;
    font-weight: 700;
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition-smooth);
    pointer-events: none;
}

.notification-toast.active {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile responsive drawer */
.mobile-menu-btn, .mobile-close-btn {
    display: none;
}

@media (max-width: 800px) {
    .app-container {
        flex-direction: column;
    }
    
    .app-sidebar {
        width: 100vw;
        height: 100vh;
        position: fixed;
        top: 0;
        left: -100vw;
        transition: left var(--transition-smooth);
    }
    
    .app-sidebar.active {
        left: 0;
    }
    
    .mobile-menu-btn {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 20px;
        height: 14px;
        background: transparent;
        border: none;
        cursor: pointer;
    }
    
    .mobile-menu-btn span {
        display: block;
        width: 100%;
        height: 2px;
        background-color: var(--text-primary);
    }
    
    .mobile-close-btn {
        display: block;
        font-size: 1.75rem;
        background: transparent;
        border: none;
        color: var(--text-secondary);
        cursor: pointer;
    }

    /* Mobile responsive adjustments */
    .main-header {
        padding: 0 1rem;
        gap: 0.75rem;
    }
    
    .search-bar-wrapper {
        max-width: none;
    }
    
    .search-bar-wrapper input {
        font-size: 0.8rem;
    }
    
    .content-body {
        padding: 1.25rem 1rem;
    }
    
    .content-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        padding-bottom: 1.25rem;
    }
    
    .sort-selector-wrapper {
        width: 100%;
        justify-content: space-between;
    }
    
    .sort-selector-wrapper select {
        flex-grow: 1;
        max-width: 250px;
    }
    
    .page-title {
        font-size: 1.25rem;
    }
}

/* ==========================================================================
   Age Gate Overlay (Bauhaus Strict Industrial Theme)
   ========================================================================== */
.age-gate-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(10px);
}

.age-gate-card {
    background-color: var(--bg-card);
    border: 2px solid var(--color-sale);
    padding: 3rem 2rem;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: 0 0 40px rgba(255, 59, 48, 0.15);
    border-radius: var(--radius-flat);
}

.age-gate-logo {
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: 4px;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1;
}

.age-gate-logo span {
    color: var(--color-sale);
}

.age-gate-title {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.age-gate-warning {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.age-gate-warning-en {
    font-size: 0.75rem;
    line-height: 1.5;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.age-gate-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.age-gate-btn {
    border: 1px solid var(--text-primary);
    padding: 0.85rem 1.5rem;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.age-gate-btn-yes {
    background-color: var(--color-sale);
    color: #ffffff;
    border-color: var(--color-sale);
}

.age-gate-btn-yes:hover {
    background-color: #ffffff;
    color: #000000;
    border-color: #ffffff;
}

.age-gate-btn-no {
    background-color: transparent;
    color: var(--text-secondary);
    border-color: var(--border-thin);
}

.age-gate-btn-no:hover {
    background-color: var(--text-primary);
    color: var(--bg-base);
    border-color: var(--text-primary);
}

.age-gate-footer {
    font-size: 0.7rem;
    color: var(--text-dark);
}

/* ==========================================================================
   Favorites Feature (Heart Button inside card & Nav highlights)
   ========================================================================== */
.btn-favorite {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-tech);
    background-color: rgba(0, 0, 0, 0.7);
    border: 1px solid var(--border-thin);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 12;
    transition: var(--transition-fast);
}

.btn-favorite:hover {
    border-color: var(--color-sale);
    color: var(--color-sale);
    background-color: rgba(0, 0, 0, 0.9);
}

.btn-favorite.active {
    color: var(--color-sale);
    border-color: var(--color-sale);
    background-color: rgba(255, 59, 48, 0.1);
}

.btn-favorite svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    transition: fill 0.1s steps(2);
}

.btn-favorite.active svg {
    fill: var(--color-sale);
}

/* Empty states */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    border: 1px dashed var(--border-thin);
    color: var(--text-secondary);
    font-family: var(--font-sans);
}

.empty-state h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 700;
}

.empty-state p {
    font-size: 0.85rem;
}