/* =========================================================
   linguistics-page.css (v2.0 - Internal Title & Nested Sidebar)
   ========================================================= */

/* ... (Keep existing body.page and single-post-wrapper styles) ... */

/* --- 2. Header Area (Collapsed) --- */
.pothi-header {
    width: 100%;
    max-width: 1220px;
    margin: 0 auto;
    padding: 1rem 1.5rem 0; /* Minimized padding */
}

/* --- 3. Pothi Grid --- */
.pothi-grid {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(260px, 1fr);
    gap: 2.5rem;
    width: 100%;
    max-width: 1220px;
    margin: 0 auto;
    padding: 1rem 1.5rem 4rem;
    align-items: flex-start;
}

/* --- Mongolia Provinces Map (Full Width) --- */
.mongolia-provinces-page .pothi-header {
    max-width: 95vw;
}

.mongolia-provinces-page .pothi-grid {
    display: block;
    max-width: 100%;
    padding: 0 1.5rem 3rem;
    margin: 0 auto;
}

.mongolia-provinces-page .main-text {
    width: 100%;
    background: transparent;
    padding: 0;
    border: none;
    box-shadow: none;
}

.mongolia-provinces-map {
    max-width: 100%;
    width: 100%;
    margin: 0 auto 2rem;
}

.mongolia-provinces-map svg {
    width: 100%;
    height: auto;
    display: block;
}

.mongolia-provinces-map .province {
    transition: fill 0.2s ease, stroke 0.2s ease, opacity 0.2s ease;
}

.mongolia-provinces-map a:hover .province,
.mongolia-provinces-map a:focus .province {
    opacity: 0.85;
    stroke: #2f2a24;
    stroke-width: 1;
}

.mongolia-provinces-map .province#arkhangai { fill: #8fbf9f !important; }
.mongolia-provinces-map .province#bayan-olgii { fill: #7fb2d4 !important; }
.mongolia-provinces-map .province#bayankhongor { fill: #e6b657 !important; }
.mongolia-provinces-map .province#bulgan { fill: #9ac7c9 !important; }
.mongolia-provinces-map .province#darkhan-uul { fill: #c48ccf !important; }
.mongolia-provinces-map .province#dornod { fill: #e07a7a !important; }
.mongolia-provinces-map .province#dornogovi { fill: #e1a96b !important; }
.mongolia-provinces-map .province#dundgovi { fill: #c9a3cf !important; }
.mongolia-provinces-map .province#govi-altai { fill: #b9c36f !important; }
.mongolia-provinces-map .province#govisumber { fill: #8db7a5 !important; }
.mongolia-provinces-map .province#khentii { fill: #8fa9d9 !important; }
.mongolia-provinces-map .province#khovd { fill: #79b3a2 !important; }
.mongolia-provinces-map .province#khovsgol { fill: #6fa8c7 !important; }
.mongolia-provinces-map .province#omnogovi { fill: #d9a36f !important; }
.mongolia-provinces-map .province#orkhon { fill: #d48fb5 !important; }
.mongolia-provinces-map .province#ovorkhangai { fill: #c9b36e !important; }
.mongolia-provinces-map .province#selenge { fill: #87c090 !important; }
.mongolia-provinces-map .province#sukhbaatar { fill: #e08f6b !important; }
.mongolia-provinces-map .province#tov { fill: #b8b2d8 !important; }
.mongolia-provinces-map .province#ulaanbaatar { fill: #d96c6c !important; }
.mongolia-provinces-map .province#uvs { fill: #7aa6b8 !important; }
.mongolia-provinces-map .province#zavkhan { fill: #a5c07b !important; }

/* --- 4. Main Content ("The Paper") --- */
.main-text {
    background: #ffffff;
    padding: 3rem 4rem; /* Generous padding for paper look */
    border: 1px solid var(--rule, #dcd1c3);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--ink);
}

.page-title-internal {
    font-family: var(--serif);
    font-size: 1.7rem; /* Reduced from 2.2rem */
    font-weight: 700;
    color: var(--wood-dark, #5a3a22);
    margin: 0 0 1rem 0;
    line-height: 1.2;
    letter-spacing: 0.02em;
}

.title-divider {
    border: 0;
    height: 1px;
    background: linear-gradient(to right, var(--wood-orange), transparent);
    margin-bottom: 2rem;
    opacity: 0.6;
}

/* Content Headings */
.main-text h2 {
    font-family: var(--serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--wood-dark);
    margin: 2.5rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid rgba(201, 100, 45, 0.15);
}

/* ... (Keep existing p, ul, ol, link styles) ... */

/* --- 5. Sidebar Navigation (Nested Menu) --- */
.commentary {
    position: sticky;
    top: 90px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.comment-block {
    background: #fff;
    padding: 1.5rem;
    border: 1px solid var(--rule);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}

.comment-title {
    font-family: var(--serif);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 1rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--rule);
}

/* Reset List Styles */
.sidebar-nav-menu, 
.sidebar-nav-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* Level 1 Items (Parents) */
.sidebar-nav-menu > li > a {
    display: block;
    padding: 0.6rem 0;
    font-weight: 700;
    color: var(--wood-dark); /* Darker for parents */
    text-decoration: none;
    border-bottom: 1px dashed rgba(0,0,0,0.05);
    transition: color 0.2s;
}

.sidebar-nav-menu > li > a:hover {
    color: var(--wood-orange);
}

/* Level 2 Items (Children/Nested) */
.sidebar-nav-menu .sub-menu {
    margin-top: 0.2rem;
    margin-bottom: 0.5rem;
    padding-left: 12px; /* Indentation */
    border-left: 2px solid rgba(201, 100, 45, 0.15); /* Orange guide line */
}

.sidebar-nav-menu .sub-menu li a {
    display: block;
    padding: 0.4rem 0 0.4rem 0.8rem;
    font-size: 0.9rem;
    color: var(--ink-soft); /* Lighter for children */
    text-decoration: none;
    transition: all 0.2s;
}

.sidebar-nav-menu .sub-menu li a:hover {
    color: var(--wood-orange);
    transform: translateX(3px);
}

/* Active State Highlighting */
.sidebar-nav-menu .current-menu-item > a {
    color: var(--wood-orange);
    font-weight: 700;
}

/* Responsive */
@media (max-width: 900px) {
    .pothi-grid {
        grid-template-columns: 1fr;
    }
    .main-text {
        padding: 2rem 1.5rem;
    }
    .page-title-internal {
        font-size: 1.8rem;
    }
}