/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    font-weight: 400;
    font-size: 17px;
    line-height: 1.85;
    letter-spacing: 0.01em;
    color: #1F1F1F;
    background-color: #F6F4EF;
    height: 100vh;
    overflow: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Libre Baskerville', Georgia, serif;
    font-weight: 700;
    letter-spacing: 0.01em;
    line-height: 1.3;
}

h1 { font-size: 1.4rem; color: #F6F4EF; }

h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid #E2DED6;
    padding-bottom: 0.5rem;
}

h3 {
    font-size: 1.15rem;
    margin: 1.2rem 0 0.5rem;
    color: #2F3E4F;
}

/* ===== LAYOUT ===== */
.app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* ===== HEADER ===== */
.header {
    background-color: #1E2A38;
    border-bottom: 1px solid #2F3E4F;
    padding: 0.7rem 1rem;
    flex-shrink: 0;
    z-index: 800;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 1rem;
}

.logo { flex-shrink: 0; }

.logo h1 {
    font-family: 'Libre Baskerville', Georgia, serif;
    font-size: 1.15rem;
    font-weight: 700;
    color: #F6F4EF;
    letter-spacing: 0.03em;
}

/* ===== SEARCH ===== */
.search-wrapper {
    position: relative;
    width: 100%;
    max-width: 560px;
    margin: 0 auto;
}

.search-container { display: flex; width: 100%; }

#search-input {
    flex: 1;
    height: 40px;
    padding: 0 14px;
    font-family: 'Inter', sans-serif;
    font-size: 0.92rem;
    border: 1px solid #3a4f63;
    border-right: none;
    background-color: #f8f7f5;
    color: #1F1F1F;
    outline: none;
    transition: border-color 0.15s;
}

#search-input:focus {
    border-color: #8A5A2B;
    background-color: #fff;
}

#search-button {
    height: 40px;
    padding: 0 18px;
    background-color: #2F3E4F;
    color: #F6F4EF;
    border: 1px solid #3a4f63;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: background-color 0.15s;
}

#search-button:hover { background-color: #3a4f63; }

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #fff;
    border: 1px solid #E2DED6;
    border-top: none;
    max-height: 400px;
    overflow-y: auto;
    z-index: 2000;
    display: none;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.search-results .result-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #E2DED6;
    cursor: pointer;
}

.search-results .result-item:hover { background-color: #F6F4EF; }
.search-results .result-item:last-child { border-bottom: none; }

.result-doc-title {
    font-family: 'Libre Baskerville', Georgia, serif;
    font-weight: 700;
    font-size: 0.95rem;
    color: #1E2A38;
    margin-bottom: 0.15rem;
}

.result-article-label {
    font-family: 'Inter', sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    color: #8A5A2B;
    letter-spacing: 0.04em;
    margin-bottom: 0.2rem;
    text-transform: uppercase;
}

.result-snippet {
    font-family: 'Inter', sans-serif;
    font-size: 0.88rem;
    color: #444;
    line-height: 1.5;
}

.result-snippet mark.highlight {
    background-color: #f5e6c8;
    color: inherit;
    border-radius: 2px;
    padding: 0 1px;
}

.result-status {
    padding: 0.75rem 1rem;
    font-style: italic;
    color: #888;
    font-size: 0.9rem;
}

/* ===== MENU TOGGLE (mobile only) ===== */
.menu-toggle {
    display: none;
    background: none;
    border: 1px solid #3a4f63;
    font-size: 1.4rem;
    line-height: 1;
    padding: 0.2rem 0.6rem;
    cursor: pointer;
    color: #F6F4EF;
    flex-shrink: 0;
}

/* ===== MAIN CONTAINER ===== */
.main-container {
    display: flex;
    flex: 1;
    overflow: hidden;
    width: 100%;
    padding-bottom: 28px; /* space for bottom ribbon */
}

/* ===== LEFT SIDEBAR ===== */
.sidebar {
    width: 280px;
    flex-shrink: 0;
    height: 100%;
    background-color: #1E2A38;
    border-right: 1px solid #2F3E4F;
    overflow-y: auto;
    overflow-x: hidden;
    transition: width 0.25s ease;
    position: relative;
}

.sidebar.collapsed {
    width: 0;
    border-right: none;
}

.sidebar-inner {
    padding: 1.25rem 1rem;
    width: 280px; /* fixed width so content doesn't squish during transition */
}

/* Sidebar toggle tab — sticks out to the right of the sidebar */
.sidebar-toggle {
    position: fixed;
    left: 280px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 52px;
    background-color: #1E2A38;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    z-index: 850;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    box-shadow: 2px 0 6px rgba(0,0,0,0.18);
    transition: left 0.25s ease, background-color 0.15s;
}

.sidebar-toggle:hover { background-color: #2F3E4F; }

.sidebar-toggle .bar {
    display: block;
    width: 8px;
    height: 2px;
    background-color: #6a8eaa;
    border-radius: 1px;
}

.sidebar-toggle.collapsed {
    left: 0;
}

.sidebar-nav .category { margin-bottom: 1.5rem; }

.sidebar-nav .category h3 {
    font-family: 'Inter', sans-serif;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #6a8eaa;
    border-bottom: 1px solid #2F3E4F;
    padding-bottom: 0.4rem;
    margin-bottom: 0.5rem;
}

.document-list { list-style: none; }
.document-list li { margin-bottom: 0.1rem; }

.document-list a {
    font-family: 'Inter', sans-serif;
    font-size: 0.88rem;
    font-weight: 400;
    color: #b8cfe0;
    text-decoration: none;
    display: block;
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
    transition: background-color 0.1s, color 0.1s;
    line-height: 1.45;
}

.document-list a:hover {
    color: #F6F4EF;
    background-color: rgba(255,255,255,0.08);
}

/* ===== CONTENT AREA ===== */
.content {
    flex: 1;
    background-color: #F6F4EF;
    overflow-y: auto;
    padding: 2.5rem 5rem 3rem 4rem;
}

/* ===== WELCOME MESSAGE ===== */
.welcome-message {
    max-width: 860px;
    margin: 3rem auto;
    color: #1F1F1F;
}

.welcome-message h2 {
    font-family: 'Libre Baskerville', Georgia, serif;
    border-bottom: none;
    font-weight: 700;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.welcome-message p {
    font-size: 1.05rem;
    color: #444;
    line-height: 1.8;
}

.small-note {
    font-size: 0.88rem;
    color: #999;
    margin-top: 2rem;
    font-style: italic;
}

/* ===== DOCUMENT VIEW ===== */
.document-header {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 2rem;
    padding-bottom: 1.25rem;
    border-bottom: 2px solid #d4d0c8;
    max-width: 860px;
}

.document-header h2 {
    font-family: 'Libre Baskerville', Georgia, serif;
    font-size: 1.85rem;
    font-weight: 700;
    color: #1E2A38;
    border: none;
    padding: 0;
    margin: 0;
    line-height: 1.3;
    flex: 1;
}

.favorite-star {
    font-size: 1.4rem;
    cursor: pointer;
    color: #8A5A2B;
    flex-shrink: 0;
    margin-top: 0.25rem;
    transition: transform 0.1s;
    line-height: 1;
}

.favorite-star:hover { transform: scale(1.2); }

.preamble {
    max-width: 860px;
    margin-bottom: 2.5rem;
    font-style: italic;
    color: #333;
    font-size: 1rem;
    line-height: 1.95;
    text-align: justify;
    text-align-last: left;
    hyphens: auto;
}

.article {
    max-width: 860px;
    margin-bottom: 2.25rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e0ddd6;
}

.article:last-child { border-bottom: none; }

.article h3 {
    font-family: 'Libre Baskerville', Georgia, serif;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.85rem;
    color: #1E2A38;
}

.article p {
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.95;
    color: #222;
    text-align: justify;
    text-align-last: left;
    hyphens: auto;
}

.section-heading {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin: 2.5rem 0 0.75rem;
    color: #8A5A2B;
    border-bottom: 1px solid #E2DED6;
    padding-bottom: 0.35rem;
    max-width: 860px;
}

.annex {
    max-width: 860px;
    margin-bottom: 1.5rem;
}

.annex h4 {
    font-family: 'Libre Baskerville', Georgia, serif;
    font-weight: 700;
    font-size: 1.05rem;
    color: #1E2A38;
    margin-bottom: 0.5rem;
}

.annex p {
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    line-height: 1.95;
    text-align: justify;
    text-align-last: left;
    hyphens: auto;
}

.loading {
    font-style: italic;
    color: #999;
    font-size: 0.95rem;
    padding: 2rem;
}

/* ===== RIGHT SIDEBAR — Article Navigation ===== */
.article-nav-toggle {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 56px;
    background-color: #1E2A38;
    border: none;
    border-radius: 4px 0 0 4px;
    cursor: pointer;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    box-shadow: -2px 0 8px rgba(0,0,0,0.18);
    transition: background-color 0.15s;
}

.article-nav-toggle:hover { background-color: #2F3E4F; }

.article-nav-toggle .bar {
    display: block;
    width: 10px;
    height: 2px;
    background-color: #6a8eaa;
    border-radius: 1px;
}

.article-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(0,0,0,0.25);
    z-index: 1050;
}

.article-nav-overlay.is-visible { display: block; }

.article-nav-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    height: 100vh;
    background-color: #f9f8f6;
    border-left: 1px solid #E2DED6;
    overflow-y: auto;
    z-index: 1060;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    box-shadow: -4px 0 20px rgba(0,0,0,0.1);
    padding-bottom: 28px;
}

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

.article-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.1rem 0.8rem;
    border-bottom: 1px solid #E2DED6;
    background-color: #1E2A38;
    position: sticky;
    top: 0;
    z-index: 1;
}

.article-nav-title {
    font-family: 'Inter', sans-serif;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #6a8eaa;
}

.article-nav-close {
    background: none;
    border: none;
    color: #b8cfe0;
    font-size: 1rem;
    cursor: pointer;
    line-height: 1;
    padding: 0.1rem 0.3rem;
    transition: color 0.1s;
}

.article-nav-close:hover { color: #F6F4EF; }

.article-nav-list { padding: 0.5rem 0; }

.article-nav-item {
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: background-color 0.1s, border-color 0.1s;
}

.article-nav-item:hover {
    background-color: #f0eeeb;
    border-left-color: #8A5A2B;
}

.article-nav-item.is-active {
    background-color: #ede9e3;
    border-left-color: #8A5A2B;
}

.article-nav-num {
    font-family: 'Inter', sans-serif;
    font-size: 0.7rem;
    font-weight: 700;
    color: #8A5A2B;
    flex-shrink: 0;
    min-width: 1.8rem;
}

.article-nav-heading {
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    color: #1E2A38;
    line-height: 1.4;
}

.article-nav-part {
    font-family: 'Inter', sans-serif;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #1E2A38;
    padding: 0.7rem 1rem 0.3rem;
    background-color: #ede9e3;
    margin-top: 0.5rem;
}

/* Skeleton loading */
.article-nav-skeleton { padding: 0.75rem 1rem; }

.sk-line {
    height: 11px;
    background: linear-gradient(90deg, #e8e5e0 25%, #f0eeeb 50%, #e8e5e0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.4s infinite;
    border-radius: 3px;
    margin-bottom: 0.7rem;
}

.sk-short  { width: 40%; }
.sk-medium { width: 65%; }
.sk-long   { width: 85%; }

@keyframes shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.article-nav-status {
    padding: 1rem;
    font-style: italic;
    font-size: 0.9rem;
    color: #999;
}

/* ===== BOTTOM RIBBON ===== */
.bottom-ribbon {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 28px;
    background-color: #1E2A38;
    border-top: 1px solid #2F3E4F;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 900;
}

.bottom-ribbon span {
    font-family: 'Inter', sans-serif;
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    color: #5a7a96;
    text-transform: uppercase;
}

/* ===== MOBILE RESPONSIVE ===== */
@media (max-width: 768px) {
    .menu-toggle { display: block; }
    .header-container { flex-wrap: wrap; }

    .search-wrapper {
        order: 3;
        max-width: 100%;
        margin: 0.5rem 0 0;
        flex-basis: 100%;
    }

    .logo h1 { font-size: 1rem; }
    .content { padding: 1.5rem 1.25rem 3rem; }

    /* On mobile sidebar is a fixed overlay, ignore collapse */
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        z-index: 950;
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        width: 280px !important;
    }

    .sidebar.open { transform: translateX(0); }
    .sidebar-toggle { display: none; }

    .article-nav-sidebar { width: 280px; }
    .document-header h2 { font-size: 1.45rem; }
}

/* ===== UTILITY ===== */
.hidden { display: none; }

/* ── Full-page search results ───────────────────────────── */
.search-page-results {
    padding: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.search-page-heading {
    font-size: 1.4rem;
    margin-bottom: 4px;
    color: #1E2A38;
}

.search-page-count {
    font-size: 0.85rem;
    color: #888;
    margin-bottom: 24px;
}

.search-page-item {
    padding: 16px 20px;
    margin-bottom: 12px;
    border: 1px solid #e2e2e2;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    background: #fff;
}

.search-page-item:hover {
    background: #f5f0eb;
    border-color: #c8b8a8;
}

.search-page-doc-title {
    font-size: 1rem;
    font-weight: 600;
    color: #1E2A38;
    margin-bottom: 4px;
}

.search-page-article-label {
    font-size: 0.78rem;
    color: #888;
    margin-bottom: 6px;
}

.search-page-snippet {
    font-size: 0.85rem;
    color: #444;
    line-height: 1.6;
}

.search-page-snippet mark.highlight {
    background: #e0b3ff;
    border-radius: 3px;
    padding: 0 2px;
}

/* ── Full-page search results ───────────────────────────── */
.search-page-results {
    padding: 24px;
    max-width: 800px;
    margin: 0 auto;
}
.search-page-heading { font-size: 1.4rem; margin-bottom: 4px; }
.search-page-count { font-size: 0.85rem; color: #888; margin-bottom: 24px; }
.search-page-item {
    padding: 16px 20px;
    margin-bottom: 12px;
    border: 1px solid #e2e2e2;
    border-radius: 8px;
    cursor: pointer;
    background: #fff;
    transition: background 0.15s, border-color 0.15s;
}
.search-page-item:hover { background: #f5f0eb; border-color: #c8b8a8; }
.search-page-doc-title { font-size: 1rem; font-weight: 600; margin-bottom: 4px; }
.search-page-article-label { font-size: 0.78rem; color: #888; margin-bottom: 6px; }
.search-page-snippet { font-size: 0.85rem; color: #444; line-height: 1.6; }
.search-page-snippet mark.highlight { background: #e0b3ff; border-radius: 3px; padding: 0 2px; }
<span id="install-link" style="display:none; cursor:pointer; text-decoration:underline; color:#4a9eff;">install the app</span>