:root {
    --pink: #FF2E63;
    --pink-glow: rgba(255, 46, 99, 0.2);
    --pink-surface: rgba(255, 46, 99, 0.08);
    --bg-dark: #000000;
    --bg-card: #0a0a0a;
    --bg-elevated: #121212;
    --bg-sidebar: #000000;
    --surface-container: #161616;
    --surface-hover: #1d1d1d;
    --text-primary: #e7e9ea;
    --text-secondary: #71767b;
    --text-muted: #555555;
    --border: #2f3336;
    --border-subtle: #1a1a1a;
    --font-wild: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-classy: 'Playfair Display', serif;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    /* Ultra smooth easing curves - buttery! */
    --ease-butter: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-smooth: cubic-bezier(0.22, 0.61, 0.36, 1);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-elastic: cubic-bezier(0.68, -0.6, 0.32, 1.6);
    /* Smooth durations */
    --duration-instant: 100ms;
    --duration-fast: 180ms;
    --duration-normal: 280ms;
    --duration-slow: 450ms;
    --duration-slower: 600ms;
}

/* ═══ PAGE LOADER - GTA 5 STYLE ═══ */
.page-loader {
    position: fixed;
    inset: 0;
    background: #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    visibility: visible;
    transition: opacity var(--duration-slow) var(--ease-out),
        visibility var(--duration-slow) var(--ease-out);
}

.page-loader.fade-out {
    opacity: 0;
    visibility: hidden;
}

/* GTA 5 Loader Container */
.gta-loader {
    position: relative;
    width: 60px;
    height: 60px;
}

/* GTA 5 Spinning Circle - Single Ring */
.gta-spinner {
    width: 100%;
    height: 100%;
    border: 4px solid transparent;
    border-top: 4px solid #fff;
    border-right: 4px solid #fff;
    border-radius: 50%;
    animation: gtaSpin 1s linear infinite;
    box-sizing: border-box;
}

@keyframes gtaSpin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

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

html {
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    /* Smoother scroll on all platforms */
    scroll-padding-top: 2rem;
}

body {
    font-family: var(--font-wild);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
    /* Prevent layout shifts during transitions */
    contain: layout;
}

/* Buttery smooth scrollbars */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

*::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

*::-webkit-scrollbar-track {
    background: transparent;
    margin: 4px;
}

*::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 100px;
    border: 2px solid transparent;
    background-clip: content-box;
    transition: background var(--duration-normal) var(--ease-butter);
}

*::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
    border: 2px solid transparent;
    background-clip: content-box;
}

*::-webkit-scrollbar-corner {
    background: transparent;
}

.app-container {
    display: flex;
    min-height: 100vh;
}

/* ═══ SIDEBAR — Icons Only ═══ */
.sidebar {
    width: 68px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    padding: 0.75rem 0;
    transition: transform var(--duration-slower) var(--ease-out),
        box-shadow var(--duration-slow) var(--ease-butter);
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.sidebar-header {
    padding: 0.5rem;
    margin-bottom: 0.5rem;
}

.logo-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    transition: transform var(--duration-normal) var(--ease-spring),
        background var(--duration-fast) var(--ease-butter);
    text-decoration: none;
    will-change: transform;
    backface-visibility: hidden;
}

.logo-link:hover {
    background: var(--surface-hover);
    transform: scale(1.08);
}

.logo-link:active {
    transform: scale(0.92);
    transition-duration: var(--duration-instant);
}

.logo-icon-img {
    width: 42px;
    height: 42px;
    object-fit: contain;
    image-rendering: auto;
    transition: transform var(--duration-normal) var(--ease-elastic);
}

.logo-link:hover .logo-icon-img {
    transform: scale(1.1) rotate(-5deg);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.nav-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    color: var(--text-primary);
    text-decoration: none;
    transition: transform var(--duration-normal) var(--ease-spring),
        background var(--duration-fast) var(--ease-butter),
        box-shadow var(--duration-normal) var(--ease-butter);
    will-change: transform;
    backface-visibility: hidden;
}

.nav-link svg {
    width: 26px;
    height: 26px;
    transition: transform var(--duration-normal) var(--ease-elastic);
}

.nav-link:hover {
    background: var(--surface-hover);
    transform: scale(1.1);
}

.nav-link:hover svg {
    transform: scale(1.15);
}

.nav-link:active {
    transform: scale(0.88);
    transition-duration: var(--duration-instant);
}

.nav-link.active {
    background: var(--pink-surface);
    box-shadow: 0 0 20px var(--pink-glow);
}

.nav-link.active svg {
    color: var(--pink);
}

/* ═══ MAIN CONTENT ═══ */
.main-content {
    flex: 1;
    margin-left: 68px;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    /* Smooth scroll only in content area */
    scroll-behavior: smooth;
}

.top-bar {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 0 1.5rem;
    height: 53px;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-subtle);
    transition: background var(--duration-slow) var(--ease-butter),
        backdrop-filter var(--duration-slow) var(--ease-butter);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-full);
    transition: all var(--duration-fast) var(--ease-smooth);
}

.menu-toggle:hover {
    background: var(--surface-hover);
}

.menu-toggle:active {
    transform: scale(0.9);
}

.page-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: opacity var(--duration-normal);
}

.content-area {
    flex: 1;
    padding: 2rem 3rem;
    max-width: 850px;
    width: 100%;
    margin: 0 auto;
    animation: contentFade var(--duration-slower) var(--ease-out);
}

@keyframes contentFade {
    from {
        opacity: 0;
        transform: translateY(12px);
        filter: blur(4px);
    }

    60% {
        filter: blur(0px);
    }

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

/* ═══ FOOTER ═══ */
.site-footer {
    text-align: center;
    padding: 2rem;
    margin-top: auto;
    color: var(--text-muted);
    font-size: 0.875rem;
    border-top: 1px solid var(--border-subtle);
}

/* ═══ HOME PAGE ═══ */
.home-page {
    padding: 1rem 0;
}

.home-header {
    margin-bottom: 2.5rem;
}

.home-title {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.home-title .wild {
    font-size: 2rem;
    font-style: italic;
    color: var(--pink);
    font-family: var(--font-classy);
    text-transform: uppercase;
}

.home-title .classy {
    font-family: var(--font-classy);
    font-style: italic;
    font-size: 2.5rem;
    color: var(--pink);
}

.home-sub {
    color: var(--text-muted);
}

.topics-grid {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.topic-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: transform var(--duration-normal) var(--ease-out),
        border-color var(--duration-fast) var(--ease-butter),
        background var(--duration-fast) var(--ease-butter),
        box-shadow var(--duration-normal) var(--ease-butter);
    will-change: transform;
    backface-visibility: hidden;
}

.topic-card:hover {
    background: var(--surface-hover);
    border-color: var(--pink);
    transform: translateX(6px) scale(1.01);
    box-shadow: 0 4px 24px rgba(255, 46, 99, 0.1);
}

.topic-card:active {
    transform: translateX(2px) scale(0.98);
    transition-duration: var(--duration-instant);
}

.topic-icon {
    font-size: 1.75rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-container);
    border-radius: var(--radius-md);
    transition: transform var(--duration-normal) var(--ease-elastic);
}

.topic-card:hover .topic-icon {
    transform: scale(1.15) rotate(-5deg);
}

.topic-info {
    flex: 1;
}

.topic-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.125rem;
}

.topic-count {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.topic-arrow {
    font-size: 1.25rem;
    color: var(--text-muted);
    transition: transform var(--duration-normal) var(--ease-elastic),
        color var(--duration-fast) var(--ease-butter);
}

.topic-card:hover .topic-arrow {
    color: var(--pink);
    transform: translateX(10px);
}

/* ═══ TOPIC PAGE ═══ */
.topic-page {
    padding: 1rem 0;
}

.topic-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    margin-bottom: 1.5rem;
    background: var(--surface-container);
    border: none;
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: transform var(--duration-normal) var(--ease-out),
        background var(--duration-fast) var(--ease-butter),
        color var(--duration-fast) var(--ease-butter);
    text-decoration: none;
    will-change: transform;
    backface-visibility: hidden;
}

.back-btn:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
    transform: translateX(-6px);
}

.back-btn:active {
    transform: translateX(-2px) scale(0.95);
    transition-duration: var(--duration-instant);
}

.files-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-secondary);
    transition: transform var(--duration-normal) var(--ease-out),
        background var(--duration-fast) var(--ease-butter),
        color var(--duration-fast) var(--ease-butter);
    will-change: transform;
    backface-visibility: hidden;
}

.file-item:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
    transform: translateX(10px);
}

.file-item:active {
    transform: translateX(4px) scale(0.98);
    transition-duration: var(--duration-instant);
}

.file-icon {
    font-size: 1rem;
    transition: transform var(--duration-normal) var(--ease-elastic);
}

.file-item:hover .file-icon {
    transform: scale(1.25) rotate(-5deg);
}

.subfolder {
    margin: 0.5rem 0;
}

.subfolder-header {
    padding: 0.75rem 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.subfolder-items {
    padding-left: 1rem;
    border-left: 1px solid var(--border-subtle);
    margin-left: 1rem;
}

/* ═══ EXPLORE PAGE ═══ */
.explore-page {
    padding: 1rem 0;
}

.search-container {
    margin-bottom: 2rem;
}

.search-input {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
    background: var(--surface-container);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-family: var(--font-wild);
    transition: border-color var(--duration-fast) var(--ease-butter),
        box-shadow var(--duration-normal) var(--ease-out),
        transform var(--duration-normal) var(--ease-spring);
}

.search-input::placeholder {
    color: var(--text-muted);
    transition: color var(--duration-fast) var(--ease-butter);
}

.search-input:focus {
    outline: none;
    border-color: var(--pink);
    box-shadow: 0 0 0 4px var(--pink-glow),
        0 8px 32px rgba(255, 46, 99, 0.15);
    transform: scale(1.02);
}

.search-input:focus::placeholder {
    color: var(--text-secondary);
}

.search-results {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.search-hint {
    color: var(--text-muted);
    text-align: center;
    padding: 2rem;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-secondary);
    transition: transform var(--duration-normal) var(--ease-out),
        background var(--duration-fast) var(--ease-butter),
        color var(--duration-fast) var(--ease-butter);
    backface-visibility: hidden;
}

.search-result-item:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
    transform: translateX(10px);
}

/* ═══ ARTICLE PAGE ═══ */
.article-page {
    padding: 1rem 0;
}

/* Article Navigation (Prev/Next) */
.article-nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.article-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--surface-container);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: transform var(--duration-normal) var(--ease-out),
        background var(--duration-fast) var(--ease-butter),
        border-color var(--duration-fast) var(--ease-butter),
        color var(--duration-fast) var(--ease-butter),
        box-shadow var(--duration-normal) var(--ease-butter);
    will-change: transform;
    max-width: 45%;
    backface-visibility: hidden;
}

.article-nav-btn:not(.disabled):hover {
    background: var(--surface-hover);
    border-color: var(--pink);
    color: var(--text-primary);
    box-shadow: 0 4px 16px rgba(255, 46, 99, 0.1);
}

.article-nav-btn.prev-btn:not(.disabled):hover {
    transform: translateX(-6px);
}

.article-nav-btn.next-btn:not(.disabled):hover {
    transform: translateX(6px);
}

.article-nav-btn:not(.disabled):active {
    transform: scale(0.94);
    transition-duration: var(--duration-instant);
}

.article-nav-btn.disabled {
    visibility: hidden;
}

.error-page {
    text-align: center;
    padding: 4rem 2rem;
}

.error-page h1 {
    font-size: 2rem;
    color: var(--pink);
    margin-bottom: 0.5rem;
}

.error-page p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* ═══ MARKDOWN ═══ */
.markdown-body {
    animation: contentFade var(--duration-slower) var(--ease-out);
}

.markdown-body h1 {
    font-weight: 800;
    font-size: 1.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.markdown-body h1::first-letter {
    color: var(--pink);
}

.markdown-body h2 {
    font-weight: 700;
    font-size: 1.25rem;
    margin: 2rem 0 0.75rem;
}

.markdown-body h3 {
    font-family: var(--font-classy);
    font-style: italic;
    font-size: 1.1rem;
    margin: 1.5rem 0 0.5rem;
}

.markdown-body p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.markdown-body a {
    color: var(--pink);
    text-decoration: none;
    transition: opacity var(--duration-fast);
}

.markdown-body a:hover {
    text-decoration: underline;
}

.markdown-body strong {
    color: var(--text-primary);
    font-weight: 600;
}

.markdown-body ul,
.markdown-body ol {
    margin: 1rem 0 1rem 1.25rem;
    color: var(--text-secondary);
}

.markdown-body li {
    margin-bottom: 0.5rem;
}

.markdown-body ul li::marker {
    color: var(--pink);
}

.markdown-body code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.85em;
    background: var(--surface-container);
    padding: 0.2em 0.4em;
    border-radius: 6px;
    color: var(--pink);
}

.markdown-body pre {
    margin: 1rem 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border);
    transition: border-color var(--duration-normal) var(--ease-butter),
        box-shadow var(--duration-normal) var(--ease-butter);
}

.markdown-body pre:hover {
    border-color: var(--pink);
    box-shadow: 0 4px 24px rgba(255, 46, 99, 0.08);
}

.markdown-body pre code {
    display: block;
    padding: 1rem 1.25rem;
    background: transparent;
    overflow-x: auto;
    color: var(--text-primary);
    line-height: 1.6;
    border-radius: 0;
}

.markdown-body blockquote {
    margin: 1rem 0;
    padding: 0.75rem 1rem;
    background: var(--pink-surface);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--pink);
    transition: transform var(--duration-normal) var(--ease-out),
        box-shadow var(--duration-normal) var(--ease-butter);
}

.markdown-body blockquote:hover {
    transform: translateX(6px);
    box-shadow: 0 4px 16px rgba(255, 46, 99, 0.08);
}

.markdown-body blockquote p {
    font-family: var(--font-classy);
    font-style: italic;
    margin: 0;
}

.markdown-body table {
    width: 100%;
    margin: 1rem 0;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.markdown-body th {
    background: var(--surface-container);
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
    text-align: left;
    text-transform: uppercase;
}

.markdown-body td {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    transition: background var(--duration-fast) var(--ease-butter);
}

.markdown-body tr:hover td {
    background: var(--surface-hover);
}

.markdown-body hr {
    border: none;
    height: 1px;
    background: var(--border);
    margin: 2rem 0;
}

.markdown-body img {
    max-width: 100%;
    border-radius: var(--radius-lg);
    margin: 1rem 0;
    transition: transform var(--duration-normal) var(--ease-out),
        box-shadow var(--duration-normal) var(--ease-butter);
}

.markdown-body img:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
        padding: 1rem;
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: 0 0 60px rgba(0, 0, 0, 0.8);
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
    }

    .content-area {
        padding: 1rem;
    }

    .topic-card:hover {
        transform: none;
    }

    .file-item:hover {
        transform: none;
    }
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

::selection {
    background: var(--pink);
    color: var(--bg-dark);
}

/* GPU acceleration hints for buttery smooth animations */
.topic-card,
.file-item,
.nav-link,
.back-btn,
.search-result-item,
.article-nav-btn,
.logo-link {
    transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-font-smoothing: subpixel-antialiased;
}

/* Smooth state transitions for interactive elements */
a,
button {
    -webkit-tap-highlight-color: transparent;
}

/* Focus visible for accessibility with smooth transitions */
:focus-visible {
    outline: 2px solid var(--pink);
    outline-offset: 2px;
    transition: outline-offset var(--duration-fast) var(--ease-butter);
}

/* Staggered animation for lists */
.topics-grid>* {
    animation: slideInSmooth var(--duration-slow) var(--ease-out) backwards;
}

.topics-grid>*:nth-child(1) {
    animation-delay: 0ms;
}

.topics-grid>*:nth-child(2) {
    animation-delay: 50ms;
}

.topics-grid>*:nth-child(3) {
    animation-delay: 100ms;
}

.topics-grid>*:nth-child(4) {
    animation-delay: 150ms;
}

.topics-grid>*:nth-child(5) {
    animation-delay: 200ms;
}

.topics-grid>*:nth-child(6) {
    animation-delay: 250ms;
}

.topics-grid>*:nth-child(7) {
    animation-delay: 300ms;
}

.topics-grid>*:nth-child(8) {
    animation-delay: 350ms;
}

.files-list>* {
    animation: slideInSmooth var(--duration-slow) var(--ease-out) backwards;
}

.files-list>*:nth-child(1) {
    animation-delay: 0ms;
}

.files-list>*:nth-child(2) {
    animation-delay: 30ms;
}

.files-list>*:nth-child(3) {
    animation-delay: 60ms;
}

.files-list>*:nth-child(4) {
    animation-delay: 90ms;
}

.files-list>*:nth-child(5) {
    animation-delay: 120ms;
}

.files-list>*:nth-child(6) {
    animation-delay: 150ms;
}

.files-list>*:nth-child(7) {
    animation-delay: 180ms;
}

.files-list>*:nth-child(8) {
    animation-delay: 210ms;
}

.files-list>*:nth-child(9) {
    animation-delay: 240ms;
}

.files-list>*:nth-child(10) {
    animation-delay: 270ms;
}

@keyframes slideInSmooth {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

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