/* ==========================================================================
   HAN INTERACTIVE ENTERTAINMENT · MINIMALIST DOCUMENTATION SYSTEM
   Pure Flat Design — Zero Shadows, Zero Glow, Complete Media & Guide System
   ========================================================================== */

/* Cursor Fonts */
@font-face {
    font-family: "CursorGothic";
    src: url("../../fonts/CursorGothic_Regular.woff2") format("woff2"),
         url("../fonts/CursorGothic_Regular.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "CursorGothic";
    src: url("../../fonts/CursorGothic_Italic.woff2") format("woff2"),
         url("../fonts/CursorGothic_Italic.woff2") format("woff2");
    font-weight: 400;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: "CursorGothic";
    src: url("../../fonts/CursorGothic_Bold.woff2") format("woff2"),
         url("../fonts/CursorGothic_Bold.woff2") format("woff2");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "berkeleyMono";
    src: url("../../fonts/BerkeleyMono_Regular.woff2") format("woff2"),
         url("../fonts/BerkeleyMono_Regular.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

/* Light Theme (Default) */
:root, [data-theme="light"] {
    --font-sans: "CursorGothic", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: "berkeleyMono", ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
    
    --bg-main: #ffffff;
    --bg-header: #ffffff;
    --bg-sidebar: #fafafa;
    --bg-card: #ffffff;
    --bg-hover: #f0f0f0;
    --bg-active: #eaeaea;
    --bg-muted: #f2f2f2;
    --bg-input: #ffffff;
    --bg-modal: #ffffff;
    --bg-code: #f7f7f7;
    --bg-modal-backdrop: rgba(0, 0, 0, 0.4);
    
    --text-primary: #111111;
    --text-secondary: #555555;
    --text-muted: #888888;
    
    --border-color: #eaeaea;
    --border-hover: #cccccc;
    
    --btn-primary-bg: #111111;
    --btn-primary-text: #ffffff;
    
    --logo-filter: invert(1);
    
    --header-height: 52px;
    --sidebar-width: 260px;
    --toc-width: 200px;
    --content-max-width: 760px;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-main: #14120b;
    --bg-header: #14120b;
    --bg-sidebar: #14120b;
    --bg-card: #1c1a14;
    --bg-hover: #24211a;
    --bg-active: #2a271f;
    --bg-muted: #26231c;
    --bg-input: #14120b;
    --bg-modal: #1c1a14;
    --bg-code: #0f0e09;
    --bg-modal-backdrop: rgba(0, 0, 0, 0.75);
    
    --text-primary: #f7f7f4;
    --text-secondary: #a1a09a;
    --text-muted: #706e64;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.18);
    
    --btn-primary-bg: #f7f7f4;
    --btn-primary-text: #14120b;
    
    --logo-filter: none;
}

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

::selection {
    background-color: #000000;
    color: #ffffff;
}

::-moz-selection {
    background-color: #000000;
    color: #ffffff;
}

[data-theme="dark"] ::selection {
    background-color: #ffffff;
    color: #000000;
}

[data-theme="dark"] ::-moz-selection {
    background-color: #ffffff;
    color: #000000;
}

html, body {
    width: 100%;
    min-height: 100%;
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.65;
    letter-spacing: -0.01em;
    text-rendering: geometricPrecision;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.15s ease, color 0.15s ease;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.docs-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.docs-header-left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.docs-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
}

.docs-brand-logo {
    height: 1.25rem;
    width: auto;
    display: block;
    filter: var(--logo-filter);
}

.docs-nav-links {
    display: none;
    align-items: center;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .docs-nav-links {
        display: flex;
    }
}

.docs-nav-link {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.15s ease;
}

.docs-nav-link:hover, .docs-nav-link.active {
    color: var(--text-primary);
}

.docs-header-center {
    flex: 1;
    max-width: 320px;
    margin: 0 1.5rem;
}

.docs-search-btn {
    width: 100%;
    height: 32px;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-muted);
    font-family: var(--font-sans);
    font-size: 0.82rem;
    padding: 0 0.65rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: border-color 0.15s ease;
}

.docs-search-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-secondary);
}

.docs-search-btn-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.docs-kbd {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    background-color: var(--bg-muted);
    color: var(--text-secondary);
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    border: 1px solid var(--border-color);
}

.docs-header-right {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.docs-btn-fab {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--btn-primary-text);
    background-color: var(--btn-primary-bg);
    padding: 0.35rem 0.85rem;
    border-radius: 6px;
    text-decoration: none;
    transition: opacity 0.15s ease;
}

.docs-btn-fab:hover {
    opacity: 0.85;
}

.docs-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
}

@media (min-width: 1024px) {
    .docs-menu-toggle {
        display: none;
    }
}

/* ==========================================================================
   LAYOUT SHELL
   ========================================================================== */
.docs-shell {
    display: flex;
    min-height: calc(100vh - var(--header-height));
    background-color: var(--bg-main);
}

/* ==========================================================================
   SIDEBAR & THEME / LANG CONTROLS
   ========================================================================== */
.docs-sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    position: sticky;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
    overflow-y: auto;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1.75rem;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

@media (max-width: 1023px) {
    .docs-sidebar {
        position: fixed;
        left: -100%;
        top: var(--header-height);
        z-index: 90;
        transition: left 0.2s ease;
        background-color: var(--bg-main);
    }
    
    .docs-sidebar.open {
        left: 0;
    }
}

.docs-sidebar-top {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.docs-sidebar-group {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.docs-sidebar-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-muted);
    padding: 0 0.5rem;
    margin-bottom: 0.4rem;
}

.docs-sidebar-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.38rem 0.55rem;
    border-radius: 4px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.86rem;
    transition: all 0.12s ease;
}

.docs-sidebar-link:hover {
    color: var(--text-primary);
    background-color: var(--bg-hover);
}

.docs-sidebar-link.active {
    color: var(--text-primary);
    background-color: var(--bg-active);
    font-weight: 500;
}

/* Sidebar Footer: Theme Toggle & Language */
.docs-sidebar-footer {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.docs-theme-toggle-pill {
    display: inline-flex;
    align-items: center;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    padding: 2px;
    gap: 2px;
}

.docs-theme-btn {
    width: 24px;
    height: 24px;
    border-radius: 9999px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.12s ease;
}

.docs-theme-btn svg {
    display: block;
    width: 13px;
    height: 13px;
    flex-shrink: 0;
}

.docs-theme-btn:hover {
    color: var(--text-primary);
}

.docs-theme-btn.active {
    background-color: var(--bg-muted);
    color: var(--text-primary);
}

.docs-lang-wrap {
    position: relative;
}

.docs-lang-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    padding: 0.25rem 0.65rem;
    font-size: 0.78rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.12s ease;
    user-select: none;
}

.docs-lang-pill:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.docs-lang-dropdown {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 0;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 4px;
    display: none;
    flex-direction: column;
    min-width: 120px;
    z-index: 100;
}

.docs-lang-dropdown.open {
    display: flex;
}

.docs-lang-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    border-radius: 4px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.8rem;
    transition: all 0.12s ease;
}

.docs-lang-option:hover, .docs-lang-option.active {
    background-color: var(--bg-muted);
    color: var(--text-primary);
}

/* ==========================================================================
   MAIN CONTENT & TYPOGRAPHY
   ========================================================================== */
.docs-main {
    flex: 1;
    min-width: 0;
    display: flex;
    justify-content: center;
    padding: 3.5rem 2rem 6rem 2rem;
    background-color: var(--bg-main);
}

.docs-article {
    width: 100%;
    max-width: var(--content-max-width);
}

.docs-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.docs-breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.15s ease;
}

.docs-breadcrumb a:hover {
    color: var(--text-secondary);
}

.docs-title {
    font-size: clamp(2rem, 3.5vw, 2.5rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.docs-lead {
    font-size: 1.08rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.docs-content h2 {
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 2.5rem 0 0.85rem 0;
    color: var(--text-primary);
    scroll-margin-top: calc(var(--header-height) + 1.5rem);
}

.docs-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin: 1.75rem 0 0.65rem 0;
    color: var(--text-primary);
    scroll-margin-top: calc(var(--header-height) + 1.5rem);
}

.docs-content p {
    margin-bottom: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.98rem;
}

.docs-content ul, .docs-content ol {
    margin-bottom: 1.25rem;
    padding-left: 1.35rem;
    color: var(--text-secondary);
}

.docs-content li {
    margin-bottom: 0.4rem;
}

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

.docs-content a {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 0.22em;
    text-decoration-color: var(--border-hover);
}

.docs-content a:hover {
    text-decoration-color: var(--text-primary);
}

/* ==========================================================================
   MEDIA INFRASTRUCTURE (VIDEOS, IMAGES, GIFS, EMBEDS)
   ========================================================================== */
.docs-media-wrap {
    position: relative;
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    background-color: var(--bg-code);
    margin: 1.75rem 0;
}

.docs-media-wrap video, .docs-media-wrap img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.docs-figure {
    margin: 1.75rem 0;
}

.docs-figure img, .docs-figure video {
    width: 100%;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    display: block;
}

.docs-figcaption {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 0.65rem;
    font-family: var(--font-mono);
}

/* Step-by-Step Guide Components */
.docs-steps {
    list-style: none;
    counter-reset: docs-step-counter;
    margin: 1.75rem 0;
    padding-left: 0 !important;
}

.docs-step {
    position: relative;
    padding-left: 2.25rem;
    margin-bottom: 1.75rem;
}

.docs-step::before {
    counter-increment: docs-step-counter;
    content: counter(docs-step-counter);
    position: absolute;
    left: 0;
    top: 0;
    width: 24px;
    height: 24px;
    border-radius: 9999px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-muted);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

.docs-step-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

/* Code Blocks */
.docs-code-block {
    background-color: var(--bg-code);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin: 1.5rem 0;
    overflow: hidden;
}

.docs-code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.45rem 0.85rem;
    background-color: var(--bg-muted);
    border-bottom: 1px solid var(--border-color);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
}

.docs-code-pre {
    padding: 0.85rem 1.15rem;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.6;
    color: var(--text-primary);
}

/* Callouts */
.docs-callout {
    background-color: var(--bg-sidebar);
    border-left: 2px solid var(--text-primary);
    padding: 1rem 1.25rem;
    margin: 2rem 0;
    border-radius: 0 4px 4px 0;
    font-size: 0.92rem;
}

.docs-callout p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

.docs-callout strong {
    display: block;
    margin-bottom: 0.35rem;
    color: var(--text-primary);
}

/* Pagination */
.docs-pagination {
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.docs-page-nav-card {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    text-decoration: none;
    padding: 0.85rem 1rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-card);
    transition: all 0.15s ease;
    flex: 1;
    max-width: 48%;
}

.docs-page-nav-card:hover {
    border-color: var(--text-primary);
}

.docs-page-nav-sub {
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.docs-page-nav-title {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ==========================================================================
   TOC (TABLE OF CONTENTS)
   ========================================================================== */
.docs-toc {
    width: var(--toc-width);
    flex-shrink: 0;
    position: sticky;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
    overflow-y: auto;
    padding: 3.5rem 1rem 1rem 1.5rem;
    display: none;
}

@media (min-width: 1280px) {
    .docs-toc {
        display: block;
    }
}

.docs-toc-title {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.docs-toc-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.docs-toc-link {
    font-size: 0.82rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.15s ease;
    display: block;
    line-height: 1.4;
}

.docs-toc-link:hover, .docs-toc-link.active {
    color: var(--text-primary);
}

/* ==========================================================================
   SEARCH MODAL
   ========================================================================== */
.docs-modal-backdrop {
    position: fixed;
    inset: 0;
    background-color: var(--bg-modal-backdrop);
    z-index: 200;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.docs-modal-backdrop.open {
    display: flex;
}

.docs-search-modal {
    width: 100%;
    max-width: 520px;
    background-color: var(--bg-modal);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.docs-modal-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.docs-modal-input-icon {
    position: absolute;
    left: 1.25rem;
    color: var(--text-muted);
    pointer-events: none;
}

.docs-modal-input {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    text-align: center;
    outline: none;
    padding: 0 2rem;
}

.docs-modal-input::placeholder {
    text-align: center;
    color: var(--text-muted);
}

.docs-modal-input-wrap .docs-kbd {
    position: absolute;
    right: 1.25rem;
}

.docs-modal-results {
    max-height: 320px;
    overflow-y: auto;
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.docs-modal-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0.65rem 0.85rem;
    border-radius: 6px;
    text-decoration: none;
    color: var(--text-secondary);
    transition: all 0.12s ease;
}

.docs-modal-item:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.docs-modal-item-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
}

.docs-modal-item-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
    text-align: center;
}

.docs-modal-empty {
    padding: 1.75rem 1rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}