/* --- CSS Variables for Light / Dark Mode --- */
:root {
    /* Light Theme (Editorial off-white) */
    --bg-color: #F4F4F0;
    --surface-color: #FFFFFF;
    --text-main: #111111;
    --text-muted: #767676;
    --border-color: #D1D1C7;
    --border-hover: #111111;
    --accent-color: #E2FF4A;
    /* Trendy neon yellow accent */
    --accent-text: #111111;
    --text-highlight: #6b8200;
    --overlay-bg: rgba(244, 244, 240, 0.95);

    --font-display: 'Manrope', sans-serif;
    --font-ui: 'Manrope', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --transition-smooth: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
    /* Dark Theme (Deep studio black) */
    --bg-color: #0A0A0A;
    --surface-color: #121212;
    --text-main: #F5F5F5;
    --text-muted: #888888;
    --border-color: #262626;
    --border-hover: #F5F5F5;
    --accent-color: #E2FF4A;
    --accent-text: #111111;
    --text-highlight: #E2FF4A;
    --overlay-bg: rgba(10, 10, 10, 0.95);
}

/* --- Base Reset & Noise Texture --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

a {
    color: inherit;
    text-decoration: none;
}

body {
    font-family: var(--font-ui);
    background-color: var(--bg-color);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
    display: flex;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

/* Mobile hamburger button */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 200;
    width: 44px;
    height: 44px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    background: var(--text-main);
    color: var(--bg-color);
}

/* Overlay for sidebar on mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

/* CSS Noise Overlay for texture */
.noise::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* --- Layout Structure --- */
.sidebar {
    width: 320px;
    height: 100vh;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 40px 32px;
    padding-bottom: 60px;
    background-color: var(--bg-color);
    z-index: 100;
    flex-shrink: 0;
    overflow-y: auto;
    overflow-x: hidden;
    position: sticky;
    top: 0;
    transition: border-color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-smooth);
}

/* Custom thin scrollbar for sidebar */
.sidebar::-webkit-scrollbar {
    width: 3px;
}

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

.sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.sidebar {
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    position: relative;
}

/* --- Sidebar Elements --- */
.brand {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-logo {
    max-width: 150px;
    height: auto;
    display: block;
    opacity: 0.9;
    transition: opacity var(--transition-fast);
}

.brand:hover .brand-logo {
    opacity: 1;
}

.category-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 24px;
    font-weight: 600;
}

.nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-item {
    font-size: 1.1rem;
    padding: 12px 16px;
    cursor: pointer;
    border: 1px solid transparent;
    color: var(--text-muted);
    transition: all var(--transition-fast);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-item:hover {
    color: var(--text-main);
    transform: translateX(4px);
}

.nav-item.active {
    color: var(--text-main);
    border: 1px solid var(--border-color);
    background-color: var(--surface-color);
    font-weight: 500;
}

/* --- Header Elements --- */
.header {
    padding: 24px 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 12px;
}

.header-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 3.5vw, 2rem);
    line-height: 0.9;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.03em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding-right: 20px;
}

.header-controls {
    display: flex;
    gap: 16px;
    align-items: center;
    flex-shrink: 0;
}

.search-box {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    padding: 12px 20px;
    background: var(--surface-color);
    transition: border-color var(--transition-fast);
    width: 250px;
    min-width: 0;
}

.search-box:focus-within {
    border-color: var(--text-main);
}

.search-box input {
    background: none;
    border: none;
    outline: none;
    color: var(--text-main);
    font-family: var(--font-ui);
    font-size: 0.9rem;
    width: 100%;
    margin-left: 12px;
}

.theme-toggle {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    width: 44px;
    height: 44px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    border-color: var(--text-main);
    background: var(--text-main);
    color: var(--bg-color);
}

/* Show sun in dark mode, moon in light mode */
:root #iconSun {
    display: none;
}

:root #iconMoon {
    display: block;
}

[data-theme="dark"] #iconSun {
    display: block;
}

[data-theme="dark"] #iconMoon {
    display: none;
}

/* --- Grid & Cards --- */
.grid-container {
    padding: 24px 60px 60px;
}

.grid-container-yt {
    padding: 24px 60px 60px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 32px;
}

.card {
    position: relative;
    aspect-ratio: 4/5;
    overflow: hidden;
    cursor: pointer;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    transition: border-color var(--transition-fast);
}

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

.card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(80%);
    transition: transform var(--transition-smooth), filter var(--transition-smooth);
}

.card:hover img {
    transform: scale(1.05);
    filter: grayscale(0%);
}

.card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0) 50%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-smooth);
}

.card:hover .card-overlay {
    opacity: 1;
    transform: translateY(0);
}

.card-title {
    font-family: var(--font-display);
    color: #fff;
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.card-badge {
    align-self: flex-start;
    background: var(--accent-color);
    color: var(--accent-text);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 10px;
    text-transform: uppercase;
}

/* --- Load More Button --- */
.load-more-wrapper {
    display: flex;
    justify-content: center;
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
    margin-top: 40px;
}

.btn-large {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    text-transform: uppercase;
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 20px 60px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.btn-large::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--text-main);
    transform: translateY(100%);
    transition: transform var(--transition-fast);
    z-index: -1;
}

.btn-large:hover {
    color: var(--bg-color);
    border-color: var(--text-main);
}

.btn-large:hover::before {
    transform: translateY(0);
}

/* --- Editorial Split Modal --- */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

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

.modal-bg {
    position: absolute;
    inset: 0;
    background: var(--overlay-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.modal-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    transform: translateY(40px);
    transition: transform var(--transition-smooth);
}

.modal.active .modal-container {
    transform: translateY(0);
}

.modal-left {
    width: 50%;
    height: 100%;
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-left img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.2));
}

.modal-right {
    width: 50%;
    height: 100%;
    background: var(--bg-color);
    border-left: 1px solid var(--border-color);
    padding: 80px 60px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.btn-close {
    position: absolute;
    top: 40px;
    right: 40px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    width: 48px;
    height: 48px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    z-index: 10;
    transition: all var(--transition-fast);
}

.btn-close:hover {
    background: var(--text-main);
    color: var(--bg-color);
}

.modal-tag {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 16px;
    display: block;
}

.modal-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    line-height: 1;
    margin-bottom: 24px;
}

.modal-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 48px;
    max-width: 80%;
}

/* Code Blocks */
.code-section {
    margin-bottom: 32px;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.code-header h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.chip-most-used {
    background-color: #bdef2c;
    color: #000;
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    border-radius: 9999px;
    padding: 4px 12px;
    margin-left: 8px;
    display: inline-flex;
    align-items: center;
    vertical-align: middle;
    letter-spacing: 0.05em;
    line-height: 1;
}

.btn-copy {
    background: transparent;
    border: none;
    color: var(--text-main);
    font-size: 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    transition: opacity var(--transition-fast);
}

.btn-copy:hover {
    opacity: 0.6;
}

.code-block {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-main);
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-all;
}

/* --- Toast Notification --- */
.toast {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--text-main);
    color: var(--bg-color);
    padding: 16px 32px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    opacity: 0;
    transition: all var(--transition-smooth);
    z-index: 2000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-color);
    border-left: 1px solid var(--border-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Card Load Animation Keyframe */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* --- Header Icon Navigation (Home / About / Privacy) --- */
.header-icon-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}

.header-nav-btn {
    width: 44px;
    height: 44px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--border-color);
    background: var(--surface-color);
    color: var(--text-muted);
    text-decoration: none;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.header-nav-btn svg,
.header-nav-btn i {
    width: 18px;
    height: 18px;
    display: block;
    flex-shrink: 0;
}

.header-nav-btn:hover {
    border-color: var(--text-main);
    color: var(--text-main);
    background: var(--surface-color);
}

.header-nav-btn.active {
    background: var(--text-main);
    border-color: var(--text-main);
    color: var(--bg-color);
}

/* --- Editorial Text Pages (About & Privacy) --- */
.editorial-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 80px 40px;
    overflow-y: auto;
    height: 100vh;
    flex: 1;
}

.paragraph-lead {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--text-main);
    margin-bottom: 32px;
    font-weight: 500;
}

.editorial-text {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.editorial-text strong {
    color: var(--text-main);
}

.editorial-section {
    margin-bottom: 48px;
}

.editorial-h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    margin-bottom: 20px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    color: var(--text-main);
}

.editorial-h3 {
    font-family: var(--font-ui);
    font-size: 1.2rem;
    margin-top: 24px;
    margin-bottom: 12px;
    font-weight: 600;
    color: var(--text-main);
}

.editorial-list {
    margin-bottom: 24px;
    padding-left: 20px;
    color: var(--text-muted);
    line-height: 1.7;
}

.editorial-list li {
    margin-bottom: 8px;
}

/* --- Empty State --- */
.empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 40px;
    text-align: center;
    animation: fadeUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.empty-state-icon {
    width: 96px;
    height: 96px;
    border: 1px solid var(--border-color);
    background: var(--surface-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    margin-bottom: 36px;
    position: relative;
    animation: emptyIconPulse 3s ease-in-out infinite;
    overflow: hidden;
}

/* Scanline texture inside icon box */
.empty-state-icon::before {
    background: repeating-linear-gradient(0deg,
            transparent,
            transparent 3px,
            rgba(128, 128, 128, 0.04) 3px,
            rgba(128, 128, 128, 0.04) 4px) !important;
    border: none !important;
    inset: 0 !important;
    opacity: 1 !important;
    animation: none !important;
}

.empty-state-icon svg {
    position: relative;
    z-index: 1;
    width: 36px;
    height: 36px;
}

.empty-state-icon::after {
    content: '';
    position: absolute;
    inset: -12px;
    border: 1px solid var(--border-color);
    opacity: 0;
    animation: emptyRipple 3s ease-in-out infinite;
    animation-delay: 0.3s;
}

@keyframes emptyIconPulse {

    0%,
    100% {
        border-color: var(--border-color);
    }

    50% {
        border-color: var(--accent-color);
        color: var(--accent-color);
    }
}

@keyframes emptyRipple {
    0% {
        opacity: 0;
        inset: 0;
    }

    30% {
        opacity: 0.4;
    }

    100% {
        opacity: 0;
        inset: -20px;
    }
}

.empty-state-glitch {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--accent-color);
    margin-bottom: 20px;
    position: relative;
    animation: glitchFlicker 4s ease-in-out infinite;
}

.empty-state-glitch::before {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: -2px;
    color: #ff4d4d;
    clip-path: polygon(0 20%, 100% 20%, 100% 40%, 0 40%);
    animation: glitchSliceR 4s ease-in-out infinite;
    opacity: 0;
}

.empty-state-glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 2px;
    color: #4dffee;
    clip-path: polygon(0 60%, 100% 60%, 100% 80%, 0 80%);
    animation: glitchSliceL 4s ease-in-out infinite;
    opacity: 0;
}

@keyframes glitchFlicker {

    0%,
    90%,
    100% {
        opacity: 1;
        transform: none;
    }

    92% {
        opacity: 0.8;
        transform: translateX(2px);
    }

    94% {
        opacity: 1;
        transform: translateX(-2px);
    }

    96% {
        opacity: 0.9;
        transform: none;
    }
}

@keyframes glitchSliceR {

    0%,
    90%,
    100% {
        opacity: 0;
    }

    92% {
        opacity: 0.6;
        transform: translateX(4px);
    }

    94% {
        opacity: 0;
    }
}

@keyframes glitchSliceL {

    0%,
    90%,
    100% {
        opacity: 0;
    }

    93% {
        opacity: 0.6;
        transform: translateX(-4px);
    }

    95% {
        opacity: 0;
    }
}

.empty-state-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    color: var(--text-main);
    margin-bottom: 16px;
    line-height: 1;
}

.empty-state-desc {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 400px;
    margin-bottom: 40px;
}

.empty-state-category {
    color: var(--text-main);
    font-weight: 600;
}

.empty-state-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.empty-state-btn {
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    padding: 12px 24px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.empty-state-btn:hover {
    color: var(--text-main);
    border-color: var(--text-main);
}

.empty-state-btn-primary {
    background: var(--accent-color);
    color: var(--accent-text);
    border-color: var(--accent-color);
}

.empty-state-btn-primary:hover {
    opacity: 0.85;
    color: var(--accent-text);
    border-color: var(--accent-color);
}

.empty-state-btn i {
    width: 16px;
    height: 16px;
}

/* --- YouTube Thumbnails NEW Feature Banner --- */
.yt-feature-banner {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    gap: 20px;
    margin: 20px 60px 20px;
    padding: 20px 24px;
    border: 1px solid var(--border-color);
    background: var(--surface-color);
    cursor: pointer;
    text-decoration: none;
    color: var(--text-main);
    position: relative;
    overflow: hidden;
    transition: border-color var(--transition-fast), transform var(--transition-fast);
    animation: bannerSlideIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes bannerSlideIn {
    from {
        opacity: 0;
        transform: translateY(-12px);
    }

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

.yt-feature-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(226, 255, 74, 0.06) 50%, transparent 100%);
    transform: translateX(-100%);
    animation: bannerShimmer 3s ease-in-out infinite;
    pointer-events: none;
}

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

    60% {
        transform: translateX(100%);
    }

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

.yt-feature-banner:hover {
    border-color: var(--accent-color);
    transform: translateX(4px);
}

.yt-banner-icon {
    width: 52px;
    height: 52px;
    background: var(--accent-color);
    color: var(--accent-text);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
}

.yt-banner-icon svg,
.yt-banner-icon i {
    width: 24px;
    height: 24px;
    display: block;
    flex-shrink: 0;
}

.yt-banner-icon::after {
    content: '';
    position: absolute;
    inset: -4px;
    border: 1px solid var(--accent-color);
    opacity: 0;
    animation: iconPulse 2s ease-in-out infinite;
}

@keyframes iconPulse {

    0%,
    100% {
        opacity: 0;
        inset: -4px;
    }

    50% {
        opacity: 0.5;
        inset: -10px;
    }
}

.yt-banner-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.yt-banner-label {
    display: flex;
    align-items: center;
    gap: 10px;
}

.yt-banner-new-badge {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    padding: 3px 8px;
    background: var(--accent-color);
    color: var(--accent-text);
    text-transform: uppercase;
}

.yt-banner-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.yt-banner-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.yt-banner-arrow {
    color: var(--text-muted);
    transition: transform var(--transition-fast), color var(--transition-fast);
}

.yt-feature-banner:hover .yt-banner-arrow {
    transform: translateX(6px);
    color: var(--text-main);
}

/* ============================================================
   RESPONSIVE DESIGN — Mobile & Tablet Breakpoints
   ============================================================ */

/* --- Tablet (max 1024px) --- */
@media (max-width: 1024px) {
    .sidebar {
        width: 280px;
        padding: 32px 24px;
    }

    .header {
        padding: 20px 32px;
    }

    .grid-container,
    .grid-container-yt {
        padding: 20px 32px 48px;
    }

    .yt-feature-banner {
        margin: 16px 32px 28px;
    }

    .modal-right,
    .yt-modal-right {
        padding: 60px 40px;
    }

    .editorial-container {
        padding: 60px 32px;
    }
}

/* --- Mobile (max 768px) --- */
@media (max-width: 768px) {
    body {
        overflow: auto;
        height: auto;
        min-height: 100vh;
        flex-direction: column;
    }

    /* Hamburger toggle button visible */
    .sidebar-toggle {
        display: flex;
    }

    /* Sidebar becomes an overlay drawer */
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 280px;
        padding: 80px 24px 40px;
        border-right: 1px solid var(--border-color);
        overflow-y: auto;
        transform: translateX(-100%);
        z-index: 150;
        box-shadow: 4px 0 40px rgba(0, 0, 0, 0.3);
    }

    .sidebar.is-open {
        transform: translateX(0);
    }

    .sidebar-overlay.is-visible {
        display: block;
    }

    /* Main fills full width */
    .main-content {
        width: 100%;
        overflow-y: auto;
        min-height: 100vh;
    }

    /* Header adjustments */
    .header {
        padding: 76px 20px 20px;
        gap: 12px;
        flex-direction: column;
        align-items: flex-start;
    }

    .header-title {
        font-size: clamp(1.5rem, 6vw, 2rem);
        padding-right: 0;
        white-space: normal;
    }

    .header-controls {
        width: 100%;
        flex-wrap: wrap;
        gap: 8px;
    }

    .search-box {
        width: 100%;
        flex: 1 1 auto;
    }

    /* Grid adjustments */
    .grid-container,
    .grid-container-yt {
        padding: 16px 16px 48px;
    }

    .grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 16px;
    }

    /* YT Banner */
    .yt-feature-banner {
        margin: 12px 16px 20px;
        padding: 16px;
        gap: 12px;
    }

    .yt-banner-desc {
        display: none;
    }

    /* Modals: stack vertically */
    .modal-container {
        flex-direction: column;
        overflow-y: auto;
    }

    .modal-left {
        width: 100%;
        height: 40vh;
        min-height: 200px;
        padding: 20px;
        flex-shrink: 0;
    }

    .modal-right,
    .yt-modal-right {
        width: 100%;
        height: auto;
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding: 32px 20px 60px;
        flex-shrink: 0;
    }

    .modal-title {
        font-size: clamp(1.6rem, 6vw, 2.5rem);
    }

    .yt-modal-title {
        font-size: clamp(1.6rem, 5vw, 2.2rem);
    }

    .btn-close {
        top: 12px;
        right: 12px;
    }

    /* Editorial pages */
    .editorial-container {
        padding: 40px 20px 60px;
        height: auto;
    }

    /* Toast */
    .toast {
        bottom: 20px;
        width: calc(100% - 40px);
        left: 20px;
        transform: translateX(0) translateY(80px);
        text-align: center;
    }

    .toast.show {
        transform: translateX(0) translateY(0);
    }

    /* Load more */
    .load-more-wrapper {
        padding: 40px 0;
    }

    .btn-large {
        padding: 16px 40px;
        font-size: 1rem;
    }
}

/* --- Small Mobile (max 480px) --- */
@media (max-width: 480px) {
    .grid {
        grid-template-columns: 1fr;
    }

    .header-icon-nav {
        gap: 4px;
    }

    .header-nav-btn,
    .theme-toggle {
        width: 40px;
        height: 40px;
    }

    .yt-banner-icon {
        width: 40px;
        height: 40px;
    }

    .modal-left {
        height: 35vh;
    }

    .empty-state {
        padding: 60px 20px;
    }
}


/* ============================================================
   NEW FEATURES � Favourites, Recently Viewed, Share, Trending
   ============================================================ */

/* --- Card: Heart (Favourite) Button --- */
.card-fav-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 34px;
    height: 34px;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #fff;
    z-index: 5;
    opacity: 0;
    transform: scale(0.8);
    transition: opacity var(--transition-fast), transform var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}

.card:hover .card-fav-btn {
    opacity: 1;
    transform: scale(1);
}

.card-fav-btn.is-fav {
    opacity: 1;
    transform: scale(1);
    background: rgba(226, 255, 74, 0.15);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.card-fav-btn svg {
    width: 14px;
    height: 14px;
}

.card-fav-btn:hover {
    background: rgba(226, 255, 74, 0.2);
    color: var(--accent-color);
    border-color: var(--accent-color);
}

/* --- Card: Stats & Trending Badges --- */
.card-stats-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 8px;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.9);
    z-index: 5;
    letter-spacing: 0.04em;
    font-family: var(--font-mono);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.card-stats-badge.is-trending {
    border: 1px solid rgba(255, 120, 0, 0.5);
    color: #ff8c00;
    background: rgba(0, 0, 0, 0.7);
}

/* --- Modal: Meta Row --- */
.modal-meta-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.modal-meta-row .modal-tag {
    margin-bottom: 0;
}

/* --- Modal: Trending Badge --- */
.trending-badge {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #ff8c00;
    border: 1px solid rgba(255, 140, 0, 0.4);
    padding: 3px 10px;
    background: rgba(255, 140, 0, 0.08);
    animation: trendPulse 2s ease-in-out infinite;
}

@keyframes trendPulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

/* --- Modal: Action Bar --- */
.modal-action-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.modal-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-ui);
    font-size: 0.82rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    padding: 10px 18px;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.modal-action-btn svg {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
    transition: fill var(--transition-fast);
}

.modal-action-btn:hover {
    color: var(--text-main);
    border-color: var(--text-main);
}

.modal-action-btn.is-fav {
    color: var(--accent-color);
    border-color: var(--accent-color);
    background: rgba(226, 255, 74, 0.06);
}

.modal-action-btn.is-fav svg {
    fill: currentColor;
}

.modal-action-btn.share-copied {
    color: #4dffaa;
    border-color: #4dffaa;
}

/* --- Modal: Copy Count --- */
.modal-copy-count {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-left: auto;
    letter-spacing: 0.04em;
}

/* --- Sidebar: Extra Sections --- */
.sidebar-extra-section {
    margin-top: 32px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.sidebar-extra-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.sidebar-clear-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: pointer;
    padding: 2px 6px;
    transition: color var(--transition-fast);
}

.sidebar-clear-btn:hover {
    color: var(--text-main);
}

/* Mini sidebar list */
.sidebar-mini-list {
    gap: 4px;
}

.sidebar-mini-item {
    padding: 0 !important;
    border: none !important;
    background: none !important;
    position: relative;
}

.sidebar-mini-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    color: var(--text-muted);
    text-decoration: none;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.sidebar-mini-link:hover {
    color: var(--text-main);
    border-color: var(--border-color);
    background: var(--surface-color);
}

.sidebar-mini-thumb {
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    flex-shrink: 0;
    display: block;
}

.sidebar-mini-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(60%);
    transition: filter var(--transition-fast);
    display: block;
}

.sidebar-mini-link:hover .sidebar-mini-thumb img {
    filter: grayscale(0%);
}

.sidebar-mini-title {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.82rem;
    line-height: 1.3;
}

.sidebar-mini-remove {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast), color var(--transition-fast);
    line-height: 1;
}

.sidebar-mini-item:hover .sidebar-mini-remove {
    opacity: 1;
}

.sidebar-mini-remove:hover {
    color: var(--text-main);
}

/* ============================================================
   ARTICLE READING & BLOG DETAIL STYLING
   ============================================================ */
.article-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 24px 0 80px 0;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    margin-bottom: 32px;
    transition: color var(--transition-fast);
}

.back-btn:hover {
    color: var(--text-main);
}

.article-banner {
    width: 100%;
    aspect-ratio: 21 / 9;
    overflow: hidden;
    background-color: var(--border-color);
    border: 1px solid var(--border-color);
    margin-bottom: 40px;
}

.article-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-meta {
    display: flex;
    gap: 16px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 16px;
    align-items: center;
}

.article-category {
    color: #111111;
    font-weight: 700;
    text-transform: uppercase;
}

.article-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-main);
    margin-bottom: 24px;
}

.article-content {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-muted);
}

.article-content a {
    color: var(--text-highlight);
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-thickness: 1px;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.article-content a:hover {
    color: var(--text-main);
}

.article-content h2 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-main);
    margin: 40px 0 16px 0;
}

.article-content p {
    margin-bottom: 24px;
}

.article-content strong {
    color: var(--text-main);
}

.article-content ul {
    margin-bottom: 24px;
    padding-left: 20px;
}

.article-content li {
    margin-bottom: 12px;
}

/* Inline JSON Code block styling */
.code-container {
    margin: 32px 0;
    border: 1px solid var(--border-color);
    background: var(--surface-color);
}

.code-header {
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
}

.code-block {
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-main);
    overflow-x: auto;
    line-height: 1.6;
    margin: 0;
}

/* --- Carousel Slider in Modal --- */
.slider-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.slider-slides {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.slider-slide {
    flex: 0 0 100%;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.25));
}

/* Nav Buttons */
.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-main);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.5rem;
    z-index: 10;
    transition: background 0.3s ease, transform 0.3s ease;
}

.slider-nav:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-50%) scale(1.1);
}

.prev-btn {
    left: 20px;
}

.next-btn {
    right: 20px;
}

/* Dots */
.slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.slider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
}

.slider-dot.active {
    background: var(--text-main);
    transform: scale(1.2);
}

/* Adjust light theme variables for slider buttons if needed */
[data-theme="light"] .slider-nav {
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
}
[data-theme="light"] .slider-nav:hover {
    background: rgba(0, 0, 0, 0.15);
}
[data-theme="light"] .slider-dot {
    background: rgba(0, 0, 0, 0.2);
}
[data-theme="light"] .slider-dot.active {
    background: var(--text-main);
}

/* --- Carousel Slider in Home Page Cards --- */
.card-slider-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.card-slider-slides {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.card-slider-slide {
    flex: 0 0 100%;
    width: 100%;
    height: 100%;
}

.card-slider-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(80%);
    transition: transform var(--transition-smooth), filter var(--transition-smooth);
}

.card:hover .card-slider-slide img {
    transform: scale(1.05);
    filter: grayscale(0%);
}