@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100..900;1,100..900&display=swap');

/* ==========================================================
   БАЗОВЫЕ НАСТРОЙКИ
   ========================================================== */
:root {
    --bg-color: #3b3362;
    --text-color: #e7e4ef;
    --accent-color: #ddcdb3;
    --accent-gold: #ddcdb3;
    --accent-blue: #cce2f5;
    --border-color: #333333;
    --panel-bg: #221c3f;
    --panel-bg-alt: #2c2550;
    --panel-bg-deep: #191533;
    --panel-border: #392f61;
    --accent-soft: #746e86;
    --table-bg: #453c72;
    --font-main: "Roboto", sans-serif;
    font-weight: 300;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { background-color: var(--bg-color); color: var(--text-color); font-family: var(--font-main); display: flex; flex-direction: column; align-items: center; min-height: 100vh; overflow-x: hidden; }

a { text-decoration: none; color: var(--text-color); transition: 0.3s ease; }
a:hover { color: var(--accent-gold); }

.reading-screen a > img { margin: 10px auto; display: block; max-width: 80vw; height: auto; }
.reading-screen a { color: #cce2f5; }

p { margin: 1.4rem auto; word-break: break-word; }
h1, h2, h3, h4, h5, h6 { margin: 1.4rem auto; font-weight: 300; }
.contentDiv h1, .contentDiv h2, .contentDiv h3, .contentDiv h4, .contentDiv h5, .contentDiv h6 { color: #c7baf3 !important; }

ol, ul { padding-left: 20px; }
h4, h5, h6 { text-align: center; }
h4, h5 { font-size: 1.6rem; }
h6 { font-size: 1.4rem; }
h1 a, h2 a, h3 a, h4 a, h5 a, h6 a { color: #d9a857 !important; font-size: initial; }
h1 u, h2 u, h3 u, h4 u, h5 u, h6 u { text-decoration-color: #d9a857 !important; text-decoration-thickness: 1px; }
hr { border-bottom-width: 0; }

blockquote { border-left: 2px solid #8080807d; padding: 0 15px; margin: 10px auto; }
blockquote blockquote { border: none; }
blockquote p { margin: 0.5rem auto; }

.reading-screen img { max-width: 100%; background: white; }
.aab-cover { display: none; }
.active-nav span { color: var(--accent-gold); }
.nav-img { width: 78px; object-fit: cover; transition: box-shadow 0.3s ease, transform 0.3s ease; }

/* --- ОБРАТНАЯ СВЯЗЬ И МОДАЛЬНЫЕ ОКНА --- */
.footer { margin-bottom: 30px; }
.feedback-link { display: flex; flex-direction: column; align-items: center; gap: 10px; }

.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.8); display: flex; align-items: center; justify-content: center; z-index: 1000; opacity: 0; visibility: hidden; transition: 0.3s ease; }
.modal-overlay.active { display: flex; opacity: 1; visibility: visible; }
.modal-content { background-color: #3b3362; border: 1px solid var(--accent-gold); padding: 20px; border-radius: 10px; position: relative; width: 90%; max-width: 500px; box-shadow: 0 0 20px rgba(212, 175, 55, 0.2); line-height: 1.6; }
.text-center { text-align: center; }
.feedback-form { display: flex; flex-direction: column; gap: 15px; margin-top: 20px; }
.feedback-form input, .feedback-form textarea { width: 100%; padding: 12px; background-color: #00000070; border: 1px solid var(--border-color); color: #fff; border-radius: 5px; font-family: inherit; -webkit-appearance: none; appearance: none; font-size: 1rem; }
.feedback-form input:focus, .feedback-form textarea:focus { outline: none; border-color: var(--accent-blue); }
.submit-btn { padding: 15px; background-color: #d9a857; color: #fff; border: none; border-radius: 5px; font-size: 1rem; cursor: pointer; transition: 0.3s; -webkit-appearance: none; appearance: none; }
.submit-btn:hover { background-color: #0088cc; }

.contentDiv { width: 100%; display: flex; flex-direction: column; align-items: center; padding: 0 15px; margin-bottom: 8rem; max-width: 1000px; color: var(--text-color); }
.social-links { text-align: center; margin: 35px 0 45px 0; }
.social-icon { height: 50px; }
.social-item:nth-child(3) .social-icon { height: 55px; }
.social-item:nth-child(5) .social-icon { height: 60px; }
a.social-item { padding: 0 8px; }

h1.main-hero { font-size: 1rem; font-weight: 400; margin-bottom: 12px; width: 100%; max-width: 900px; text-align: center; }
h1.main-hero:has(img) { display: flex; flex-direction: column; align-items: center; margin-top: 10px; margin-bottom: 70px; }

.header { padding: 20px 0px 7px 20px; width: 100%; }
.federation { width: 185px; margin: 0 20px; }
.federation-line { height: 35px; transform: translateY(2px); }
.separator { margin: 0 0 35px 0; }
.nav-img.icon_reading_room_icon, .nav-img.icon_tablschema { width: 145px; }
.shtangist { width: 500px; display: block; }
.krossovok { height: 80px; opacity: 0.75; display: flex; margin: auto; }

/* =========== СТИЛИ ЧИТАЛЬНОГО ЗАЛА =========== */
.books-container { font-size: 1.1rem; max-width: 1000px; width: 100%; }
.section-label { margin: 30px auto; }
.section-label span { letter-spacing: 2px; text-transform: uppercase; color: white; white-space: nowrap; }
.section-label::before, .section-label::after { content: ''; flex-grow: 1; height: 1px; background: #1a1a1a; }
.books-simple-list li { margin: 0.5rem 0; }

/* =========== ОБЩИЕ СТИЛИ ДЛЯ ЧИТАЛОК =========== */
.reading-screen, #reading-screen { width: 900px; max-width: 100%; margin: 0 auto; padding: 40px 10px; display: flex; flex-direction: column; font-weight: 300; line-height: 1.7; font-size: 1.1rem; position: relative; color: var(--text-color); }
.chapter-block { margin-bottom: 60px; }
.chapter-source { font-size: 1.4rem; margin-bottom: 20px; padding-bottom: 15px; border-bottom: 1px solid var(--border-color); text-align: center; font-weight: 400; color: #ede8ff !important; }
.chapter-divider { border: none; border-top: 1px solid var(--border-color); margin: 60px 0 50px; opacity: 0.4; }
.content-area ul { padding-left: 25px; margin-bottom: 1.5rem; }
.content-area li { margin-bottom: 0.5rem; }

/* =========== ЕДИНАЯ СИСТЕМА ПЛАВАЮЩИХ КНОПОК =========== */
.floating-nav-btn, .floating-back-btn, .back-to-room, .back-to-search, .toggleContents {
    display: inline-flex; align-items: center; justify-content: center;
    font-family: var(--font-main); font-size: 0.8rem; font-weight: 400; letter-spacing: 2px;
    text-transform: uppercase; text-decoration: none; color: #c7baf3 !important;
    background: var(--panel-bg); border: 1px solid #504c5d;;
    cursor: pointer; user-select: none; -webkit-user-select: none; box-sizing: border-box; line-height: 1;
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
/*.floating-nav-btn:hover, .floating-back-btn:hover, .back-to-room:hover, .back-to-search:hover, .toggleContents:hover {
    background: var(--panel-bg-alt); color: var(--accent-gold); border-color: var(--accent-gold);
}*/
.floating-nav-icon, .floating-back-btn svg, .back-to-room svg, .back-to-search svg { width: 14px; height: 14px; flex-shrink: 0; stroke-width: 2.2; }

@media (min-width: 992px) {
    .floating-nav-back, .floating-back-btn, .back-to-room, .back-to-search {
        position: fixed; left: 24px; bottom: 24px; z-index: 99; gap: 8px; height: 42px; padding: 0 20px; border-radius: 50px; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    }
    .floating-nav-toc, .toggleContents {
        position: fixed; right: 0px; top: 50%; transform: translateY(-50%); z-index: 200; writing-mode: vertical-rl; padding: 18px 10px; letter-spacing: 3px; border-right: none; border-radius: 6px 0 0 6px; box-shadow: -2px 0 10px rgba(0, 0, 0, 0.3); transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1), background 0.2s, color 0.2s, border-color 0.2s;
    }
    body.outline-open .floating-nav-toc, body.outline-open .toggleContents { right: 400px; }
}

@media (max-width: 991px) {
    .floating-nav-btn, .floating-back-btn, .back-to-room, .back-to-search, .toggleContents {
        position: fixed; bottom: 20px; top: auto; transform: none; writing-mode: horizontal-tb; z-index: 99;
        height: 32px; padding: 0 16px; font-size: 0.75rem; letter-spacing: 1px;
        border-radius: 50px; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.7);
        max-width: 45vw; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    }
    .floating-nav-back, .floating-back-btn, .back-to-room, .back-to-search { left: 16px; right: auto; gap: 6px; }
    .floating-nav-toc, .toggleContents { right: 16px; left: auto; }
    .floating-nav-icon, .floating-back-btn svg, .back-to-room svg, .back-to-search svg { width: 12px; height: 12px; }
    body.outline-open .floating-nav-toc, body.outline-open .toggleContents { opacity: 0; pointer-events: none; }
}

/* =========== БОКОВАЯ ПАНЕЛЬ ОГЛАВЛЕНИЯ =========== */
.doc-outline-sidebar {
    position: fixed; right: -110%; top: 0; height: 100vh; width: 100%; background: var(--panel-bg);
    border-left: 1px solid var(--accent-soft); overflow-y: auto; padding: 60px 0 40px; z-index: 100;
    scrollbar-width: thin; scrollbar-color: var(--border-color) transparent; -webkit-overflow-scrolling: touch;
}
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--panel-bg-deep); }
::-webkit-scrollbar-thumb { background: var(--accent-gold); border-radius: 5px; border: 2px solid var(--panel-bg-deep); }
::-webkit-scrollbar-thumb:hover { background: #ffffff; }

@media (max-width: 991px) {
    .doc-outline-sidebar { transition: right 0.3s ease; }
    .doc-outline-sidebar.open { right: 0; }
}
@media (min-width: 992px) {
    .doc-outline-sidebar { width: 400px; right: -420px; padding-top: 30px; box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3); transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
    .doc-outline-sidebar.open { right: 0; }
}

.book-spoiler { border-bottom: 1px solid var(--panel-border); }
.book-spoiler:first-child { border-top: 1px solid var(--panel-border); }
.book-spoiler summary { display: block; padding: 15px 20px; font-size: 0.95rem; color: #888; cursor: pointer; border-left: 2px solid transparent; transition: color 0.15s, background 0.15s; list-style: none; user-select: none; }
.book-spoiler summary::-webkit-details-marker { display: none; }
.book-spoiler summary:hover, .book-spoiler[open] summary { color: var(--text-color); background: var(--panel-bg-alt); border-left-color: var(--accent-soft); }
.book-parts-list { display: flex; flex-direction: column; background: var(--panel-bg-deep); }

.outline-item { display: block; padding: 10px 20px 10px 35px; font-size: 0.85rem; color: #666; text-decoration: none; border-left: 3px solid transparent; transition: color 0.15s, background-color 0.15s, border-left-color 0.15s; width: 100%; box-sizing: border-box; }
.outline-item:hover { color: var(--accent-color); background: var(--panel-bg-alt); }
.outline-item.current-page-item { background-color: rgb(13 46 181 / 10%); }
.outline-item.active { color: var(--accent-gold) !important; background-color: rgb(13 46 181 / 30%) !important; border-left-color: var(--accent-gold) !important; font-weight: 500; }

/* =========== ДЕТАЛЬНОЕ ОГЛАВЛЕНИЕ ААБ =========== */
.accordion { width: 100%; background: var(--panel-bg-deep); }
.accordion .tableHead { background-color: var(--panel-bg); border-bottom: 1px solid var(--panel-border); border-top: 1px solid var(--panel-border); color: var(--accent-gold); text-transform: uppercase; font-weight: 500; font-size: 1rem; padding: 10px 20px; letter-spacing: 2px; cursor: default; user-select: none; display: flex; align-items: center; transition: background-color 0.15s, color 0.15s; }
.accordion .tableHead.collapsible { cursor: pointer; }
.accordion .tableHead.collapsible:hover { background-color: var(--panel-bg-alt); color: var(--text-color); }
.accordion .tableHead.collapsible::before { content: '▸'; display: inline-block; margin-right: 10px; transition: transform 0.2s ease; font-size: 0.9rem; color: #666; }
.accordion .tableHead.collapsible:not(.collapsed)::before { transform: rotate(90deg); color: var(--accent-gold); }
.accordion .spisok { background: var(--panel-bg-deep); }
.accordion .spisok ul { list-style: none; padding: 0; margin: 0; }
.accordion .spisok li { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--panel-border); border-left: 3px solid transparent; position: relative; width: 100%; margin: 0; transition: background-color 0.15s, border-left-color 0.15s; }
.accordion .spisok li:hover { background-color: var(--panel-bg-alt); }
.accordion .spisok li.current-page-item { background-color: rgb(13 46 181 / 10%); }
.accordion .spisok li.current-page-item a { color: #b0c4de; }
.accordion .spisok li.current-page-item span { color: #8aa0c4; }
.accordion .spisok li.active { background-color: rgb(13 46 181 / 30%) !important; border-left-color: var(--accent-gold) !important; }
.accordion .spisok li.active a { color: var(--accent-gold) !important; font-weight: 500; }
.accordion .spisok li.active span { color: #e7e4ef !important; font-weight: 500; }
.accordion .spisok li a { display: block; flex-grow: 1; padding: 8px 10px 8px 20px; font-size: 0.85rem; color: #888; text-decoration: none; transition: color 0.15s, background-color 0.15s; text-overflow: ellipsis; overflow: hidden; white-space: nowrap; }
.accordion .spisok li a:hover { color: var(--accent-gold); }
.accordion .spisok li.current-page-item:hover {     background: #151d5a; }
.accordion .spisok li span { font-size: 0.75rem; color: #555; padding-right: 15px; flex-shrink: 0; user-select: none; transition: color 0.15s; }
.accordion .spisok li.x1 { text-align: center; display: block; opacity: 0.6; background: #ffffff2e; padding: 2px 0; }
.accordion .spisok li.x1 a { padding-left: 20px; }
.accordion .spisok li.x2 a { padding-left: 20px; text-transform: uppercase; font-size: 0.8rem; color: #aaa; font-weight: 500; }
.accordion .spisok li.x3 a { padding-left: 35px; color: #8c8c8c; }
.accordion .spisok li.x4 a { padding-left: 48px; color: #7c7c7c; }
.accordion .spisok li.x5 a { padding-left: 60px; color: #6c6c6c; font-style: italic; }
.accordion .spisok li.x6 a { padding-left: 35px; color: #a29bfe; font-weight: 400; }
.accordion .spisok li.x7 a { padding-left: 30px; }
.rays { padding-left: 10px; }

/* =========== КНИЖНАЯ ВЕРСТКА =========== */
.accent { font-weight: bold; }
.page { text-align: center; position: relative; width: 3.5em; margin-left: -4.6em; margin-top: 0.3ex; float: left; display: inline; font-size: 0.9em; vertical-align: bottom; }
.page a, .page a:visited { text-decoration: none; color: #999999; outline: none; }
table { width: 100%; max-width: 100%; margin-left: auto; margin-right: auto; }

.tablestyle table { border: 0; word-wrap: break-word; table-layout: fixed; width: 100%; text-align: left; border-top-style: none; border-left-style: none; margin: 0 auto 15px auto; background-color: var(--table-bg); }
div > table[width="500"][height="600"] { display: none; }
.tablestyle table, .tablestyle td, .tablestyle th { border: 1px dashed var(--border-color, #333333); width: auto; }
.tablestyle td, .tablestyle th { border-right-style: none; border-bottom-style: none; padding: 8px; }
.tablestyle th { font-weight: bold; text-align: left; }

a.tooltip { border-bottom: 1px dashed var(--accent-blue, #00a8ff); text-decoration: none; position: relative; }
a:hover.tooltip { padding: 0; text-decoration: none; }
.tooltip:hover span span { display: block; }
.tooltip span { position: absolute; text-decoration: none; }
.tooltip span span { display: none; position: absolute; background-color: #111111; border: 1px solid #ddcdb3; padding: 10px; color: var(--text-color, #ddcdb3); text-decoration: none; width: 250px; z-index: 100; top: 20px; left: -30px; font-family: var(--font-main, sans-serif); font-size: 0.9rem; font-style: normal; font-variant: normal; text-transform: none; text-align: left; box-shadow: 0 4px 15px rgba(0, 0, 0, 0.8); }

@media (max-width: 1023px) {
    .page { font-size: 1.5ex; font-weight: bold; float: right; text-align: right; width: auto; margin-left: 3px; margin-top: 5px; }
    .tablestyle table { width: 100%; }
}
@media (max-width: 768px) {
    :root { font-size: 13px; }
    .reading-screen, #reading-screen { padding: 15px 0; }
    .header { padding: 10px 10px 6px 30px; }
    .separator-text { font-size: 1rem; padding: 0 10px; }
    .modal-content { max-width: 79vw; }
    .federation { width: 119px; margin: 0 5px; }
    .federation-line { height: 26px; transform: translateY(0px); }
    .separator { margin: 0 0 20px 0; }
    .nav-img { width: 48px; }
    .nav-img.icon_tablschema, .nav-img.icon_reading_room_icon { width: 78px; }
    .shtangist { max-width: 79%!important; margin: auto; }
    .feedback-link { font-size: 0.9rem; gap: 5px; }
    .krossovok { height: 55px; transform: translateX(0px); }
    h1.main-hero:has(img) { margin-top: 0; margin-bottom: 25px; }
}
small:has(a) { border-bottom: 1px solid #ffffff5c; display: block; width: 100%; margin-bottom: 1rem; padding-bottom: 10px; }