:root {
  --c-bg: #111111;
  --c-beige: #EAC8A6;
  --c-light: #DACBB6;
  --c-slate: #5E7381;
  --c-dark: #1A1A1A;
  --c-text: #111111;
  --c-white: #ffffff;
  
  --font-main: 'Oswald', sans-serif;
  --font-jp: 'Noto Sans JP', sans-serif;
  --font-mono: 'Space Mono', monospace;
  --font-bebas: 'Bebas Neue', sans-serif;
  --font-manrope: 'Manrope', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { width: 100%; min-height: 100vh; }

body {
  font-family: var(--font-main);
  background-color: var(--c-bg);
  color: var(--c-light); 
  overflow-x: hidden;
  padding: 1.5rem;
}

.page-wrapper {
  max-width: 1600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

/* Utils */
.absolute { position: absolute; }
.inset-0 { top: 0; left: 0; right: 0; bottom: 0; }
.z-10 { z-index: 10; }
.relative { position: relative; }
.font-mono { font-family: var(--font-mono); }
.pointer-events-none { pointer-events: none; }

/* Header */
.blog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--c-slate);
  padding-bottom: 1rem;
  margin-bottom: 3rem;
  position: relative; 
  z-index: 60;
}

.header-title {
  font-family: var(--font-mono);
  color: var(--c-beige);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.header-title:hover { opacity: 0.7; }

.header-jp {
  font-family: var(--font-jp);
  font-weight: 900;
  font-size: 2rem;
  color: var(--c-slate);
  opacity: 0.4;
  line-height: 1;
  user-select: none;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.header-jp:hover { opacity: 1; color: var(--c-beige); }

/* Layout */
.article-container {
  display: grid;
  grid-template-columns: 1fr 300px; 
  gap: 4rem;
  padding-bottom: 4rem;
}

.article-main { min-width: 0; }

.article-title {
  font-family: var(--font-bebas);
  font-size: clamp(3rem, 6vw, 6rem);
  line-height: 0.9;
  color: var(--c-white);
  margin-bottom: 1.5rem;
}

.article-meta {
  font-family: var(--font-mono);
  color: var(--c-slate);
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2rem;
  border-top: 1px solid rgba(94, 115, 129, 0.3);
  border-bottom: 1px solid rgba(94, 115, 129, 0.3);
  padding: 1rem 0;
}

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

.article-hero-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  margin-bottom: 3rem;
  border: 1px solid var(--c-slate);
  display: block;
}

.article-hero-img.full {
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
  max-height: 85vh;
}

.article-content {
  font-family: var(--font-manrope);
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--c-light);
}

.article-content p { margin-bottom: 1.5rem; }

.article-content h2 {
  font-family: var(--font-main);
  font-size: 2.25rem;
  color: var(--c-white);
  margin-top: 3.5rem;
  margin-bottom: 1.5rem;
  border-left: 5px solid var(--c-beige);
  padding-left: 1.5rem;
  line-height: 1.1;
}

.article-content h3 {
  font-family: var(--font-main);
  font-size: 1.5rem;
  color: var(--c-beige);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.article-content ul, .article-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  color: var(--c-slate);
}

.article-content li { margin-bottom: 0.5rem; padding-left: 0.5rem; color: var(--c-light); }
.article-content :not(pre) > code {
  font-family: var(--font-mono);
  background: rgba(234, 200, 166, 0.1);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-size: 0.85em;
  color: var(--c-beige);
}

.article-content a {
    color: var(--c-beige);
    text-decoration: none;
    border-bottom: 1px dashed var(--c-slate);
    padding-bottom: 1px;
    transition: all 0.2s ease-in-out;
}

.article-content a:hover {
    color: #4ade80; 
    border-bottom: 1px solid #4ade80;
    background-color: rgba(74, 222, 128, 0.1);
    border-radius: 2px;
}

/* Code Blocks */
.code-wrapper {
  position: relative;
  margin: 2rem 0;
  border: 1px solid var(--c-slate);
  border-radius: 6px;
  background: #0d0d0d;
  overflow: hidden;
}

.code-wrapper pre {
  margin: 0;
  padding: 1.5rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #d4d4d4;
  line-height: 1.5;
}

.code-wrapper pre code.hljs { background: transparent; padding: 0; }

.code-wrapper pre::-webkit-scrollbar, .code-wrapper pre code::-webkit-scrollbar { height: 10px; }
.code-wrapper pre::-webkit-scrollbar-track, .code-wrapper pre code::-webkit-scrollbar-track {
  background: #0d0d0d;
  border-bottom-left-radius: 6px;
  border-bottom-right-radius: 6px;
}
.code-wrapper pre::-webkit-scrollbar-thumb, .code-wrapper pre code::-webkit-scrollbar-thumb {
  background-color: var(--c-slate); 
  border-radius: 10px;
  border: 2px solid #0d0d0d; 
}
.code-wrapper pre::-webkit-scrollbar-thumb:hover, .code-wrapper pre code::-webkit-scrollbar-thumb:hover { background-color: var(--c-beige); }

.code-header {
  background: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid var(--c-slate);
  padding: 0.5rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.code-lang {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-slate);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.copy-btn {
  background: transparent;
  border: 1px solid var(--c-slate);
  color: var(--c-slate);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 2px 8px;
  cursor: pointer;
  transition: all 0.2s;
  border-radius: 4px;
}

.copy-btn:hover { background: var(--c-slate); color: var(--c-bg); }

/* Callouts */
.callout {
  padding: 1.5rem;
  margin: 2rem 0;
  background: rgba(255, 255, 255, 0.03);
  border-left: 4px solid var(--c-slate);
  position: relative;
}

.callout-title {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.callout-content {
  font-size: 1rem;
  color: var(--c-light);
  opacity: 0.9;
  font-family: var(--font-manrope);
  overflow-wrap: break-word; 
  word-wrap: break-word;
}

.callout-flag .callout-content { word-break: break-all; }
.callout-quote { border-color: var(--c-slate); background: rgba(94, 115, 129, 0.1); font-style: italic; }
.callout-quote .callout-title { color: var(--c-white); }
.callout-flag { border-color: #4ade80; background: rgba(74, 222, 128, 0.05); }
.callout-flag .callout-title { color: #4ade80; }

/* Sidebar */
.sidebar { position: sticky; top: 2rem; height: fit-content; }
.sidebar-box {
  border: 1px solid var(--c-slate);
  padding: 1.5rem;
  margin-bottom: 2rem;
  background: rgba(94, 115, 129, 0.05);
}

.sidebar-title {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--c-beige);
  margin-bottom: 1rem;
  display: block;
  border-bottom: 1px dashed var(--c-slate);
  padding-bottom: 0.5rem;
  letter-spacing: 0.1em;
}

.id-container {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding-top: 0.5rem;
}

.id-logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 3rem;
    line-height: 0.9;
    letter-spacing: 1px;
    white-space: nowrap;
}

.id-text { color: var(--c-white); }
.id-num { color: #4ade80; }

.id-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(94, 115, 129, 0.2);
    padding-top: 0.75rem;
    margin-top: 0.25rem;
}

.id-jp {
    font-family: var(--font-jp);
    font-weight: 900;
    font-size: 1.5rem;
    color: var(--c-slate);
    opacity: 0.3;
    line-height: 1;
    user-select: none;
}

.id-social {
    color: var(--c-slate);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
.id-social:hover { color: #4ade80; transform: translateY(-2px); }
.id-social svg { width: 28px; height: 28px; }

.toc-list { list-style: none; display: flex; flex-direction: column; gap: 0.75rem; }
.toc-link { 
  text-decoration: none; 
  color: var(--c-slate); 
  font-family: var(--font-manrope); 
  font-size: 0.9rem; 
  transition: color 0.2s; 
  display: flex;
  gap: 0.5rem;
}
.toc-link:hover { color: var(--c-white); }

.mobile-toc {
  display: none; 
  margin-bottom: 3rem;
  border: 1px solid var(--c-slate);
  padding: 1.5rem;
  background: rgba(94, 115, 129, 0.05);
}

.simple-footer {
    border-top: 2px solid var(--c-slate);
    padding-top: 2rem;
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--c-slate);
}

/* Expand Button */
.code-wrapper.collapsed pre { max-height: 300px; overflow: hidden; }
.code-wrapper.collapsed::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; width: 100%; height: 100px; 
  background: linear-gradient(to bottom, transparent, #0d0d0d);
  pointer-events: none; z-index: 5;
}

.code-expand-btn {
  display: block; width: 100%;
  background-color: var(--c-dark);
  border: none; border-top: 1px solid var(--c-slate);
  color: var(--c-beige);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.75rem;
  cursor: pointer; text-align: center;
  transition: all 0.2s;
  position: relative; z-index: 10; 
}
.code-expand-btn:hover { background-color: var(--c-slate); color: var(--c-bg); }
.code-expand-btn::before { content: "Show Full // "; font-weight: 700; }

/* Responsive */
@media (max-width: 900px) {
    .article-container { grid-template-columns: 1fr; gap: 2rem; }
    .article-hero-img { height: 250px; }
    .article-hero-img.full { height: auto; }
    .article-title { font-size: 3.5rem; }
    .mobile-toc { display: block; }
    .sidebar { position: static; }
    .sidebar .sidebar-box.toc-box { display: none; }
}

@media (max-width: 600px) {
    .header-title { flex-direction: column; align-items: flex-start; gap: 0.1rem; font-size: 1.1rem; }
    .h-div { display: none; }
    .h-sub { font-size: 0.9em; opacity: 0.8; }
    .header-jp {
      width: 2.2em; word-break: break-all;
      white-space: normal; line-height: 1.1;
      font-size: 1.5rem; text-align: right;
    }
}

mjx-container[display="true"] {
    overflow-x: auto;           /* Allow horizontal scroll */
    overflow-y: hidden;         /* Hide vertical scroll */
    max-width: 100%;            /* Force container to fit parent */
    display: block;             /* Ensure block behavior */
    padding: 1rem 0;            /* Add vertical breathing room */
    margin: 1rem 0;             /* Standard margin */
    -webkit-overflow-scrolling: touch; /* Smooth scroll on iOS */
}

/* Optional: Style the scrollbar to match your theme */
mjx-container[display="true"]::-webkit-scrollbar {
    height: 6px;                /* Slim horizontal scrollbar */
}

mjx-container[display="true"]::-webkit-scrollbar-track {
    background: transparent;
}

mjx-container[display="true"]::-webkit-scrollbar-thumb {
    background-color: var(--c-slate);
    border-radius: 10px;
}

mjx-container[display="true"]::-webkit-scrollbar-thumb:hover {
    background-color: var(--c-beige);
}

/* Focus styles to outline the box when scrolling via keyboard */
mjx-container[display="true"]:focus {
    outline: none;
}

/* Ensure Inline Math breaks properly within text */
.article-content {
    overflow-wrap: break-word; /* Prevents long text/inline-math from overflowing */
    word-wrap: break-word;
}