/* Arcium SDK Documentation - Old Book Theme */

/* Goudy Initialen font for drop caps */
@font-face {
    font-family: 'Goudy Initialen';
    src: url('GoudyIni.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* Server Mono font for code */
@font-face {
    font-family: 'Server Mono';
    src: url('ServerMono-Regular.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

:root {
    --ink-black: #1a1a1a;
    --ink-red: #8a1c1c;
    --ink-faded: #5a5a5a;
    --ink-light: #7a7a7a;
    --paper-cream: #f8f6f1;
    --paper-dark: #e8e4dc;
    --font-body: 'IM Fell DW Pica', 'Georgia', serif;
    --font-dropcap: 'Goudy Initialen', 'MedievalSharp', serif;
    --font-typewriter: 'Server Mono', 'Courier Prime', 'Courier New', monospace;
    --toc-width: 180px;
    --toc-right-width: 200px;
    
    /* Syntax highlighting */
    --code-keyword: #8a1c1c;
    --code-string: #2e7d32;
    --code-comment: #7a7a7a;
    --code-function: #1565c0;
    --code-variable: #6a1b9a;
    --code-number: #e65100;
    --code-property: #00695c;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: linear-gradient(135deg, #f5f3ee 0%, #ebe8e0 50%, #e5e2d8 100%);
    color: var(--ink-black);
    font-family: var(--font-body);
    line-height: 1.5;
    position: relative;
    min-height: 100vh;
}

/* Subtle noise texture overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%' height='100%' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 0;
}

/* Vignette Overlay */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, transparent 50%, rgba(60, 50, 40, 0.15) 100%);
    pointer-events: none;
    z-index: 0;
}

/* ================================
   COPY MENU DROPDOWN
   ================================ */
.copy-menu-container {
    position: fixed;
    top: 12px;
    right: 1.5rem;
    z-index: 200;
}

.copy-menu-trigger {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: #1a1a1a;
    border: 1px solid #333;
    border-radius: 6px;
    color: #fff;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.copy-menu-trigger:hover {
    background: #2a2a2a;
    border-color: #444;
}

.copy-menu-trigger .chevron {
    transition: transform 0.2s ease;
}

.copy-menu-container.open .copy-menu-trigger .chevron {
    transform: rotate(180deg);
}

.copy-menu-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 280px;
    background: #1a1a1a;
    border: 1px solid #333;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.2s ease;
    overflow: hidden;
}

.copy-menu-container.open .copy-menu-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.9rem;
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
    color: #e0e0e0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.15s ease;
    text-decoration: none;
}

.menu-item:hover {
    background: #2a2a2a;
}

.menu-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    stroke: #888;
}

.menu-item:hover svg {
    stroke: #aaa;
}

.menu-item .external-icon {
    width: 14px;
    height: 14px;
    margin-left: auto;
    opacity: 0.5;
}

.menu-item-text {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    flex: 1;
    min-width: 0;
}

.menu-item-title {
    font-weight: 500;
    color: #fff;
    font-size: 0.85rem;
}

.menu-item-desc {
    font-size: 0.75rem;
    color: #888;
}

.menu-divider {
    height: 1px;
    background: #333;
    margin: 0.35rem 0;
}

.menu-item.copied .menu-item-title {
    color: #4ade80;
}

.menu-item.copied svg:first-child {
    stroke: #4ade80;
}

/* ================================
   TABLE OF CONTENTS - SIDEBAR
   ================================ */
.toc {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--toc-width);
    height: 100vh;
    background: rgba(245, 243, 238, 0.98);
    border-right: 1px solid rgba(0, 0, 0, 0.08);
    z-index: 100;
    display: flex;
    flex-direction: column;
    transform: translateX(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* На больших экранах смягчаем визуальный вид левого сайдбара */
@media (min-width: 1600px) {
    .toc {
        box-shadow: none;
        border-right: none;
    }
    
    .toc-header {
        border-bottom: none;
    }
    
    /* Заполняем пространство слева от сайдбара тем же цветом через body::after */
    body::after {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: calc(50% - var(--content-total-width) / 2);
        height: 100vh;
        background: rgba(245, 243, 238, 0.98);
        z-index: 99;
        pointer-events: none;
    }
    
    /* Добавляем мягкий градиент по правому краю */
    .toc::after {
        content: '';
        position: absolute;
        top: 0;
        right: 0;
        width: 2px;
        height: 100%;
        background: linear-gradient(to bottom,
            transparent 0%,
            rgba(0, 0, 0, 0.05) 10%,
            rgba(0, 0, 0, 0.08) 50%,
            rgba(0, 0, 0, 0.05) 90%,
            transparent 100%
        );
        pointer-events: none;
    }
}

.toc.hidden {
    transform: translateX(-100%);
}

.toc-header {
    padding: 1.5rem 1.2rem 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    text-align: center;
}

.toc-sigil {
    display: block;
    font-family: var(--font-dropcap);
    font-size: 2.5rem;
    color: var(--ink-red);
    line-height: 1;
    margin-bottom: 0.3rem;
    opacity: 0.8;
}

.toc-title {
    display: block;
    font-family: var(--font-body);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15rem;
    color: var(--ink-faded);
}

.toc-list {
    flex: 1;
    list-style: none;
    padding: 1rem 0;
    overflow-y: auto;
}

.toc-list li {
    margin: 0;
}

.toc-link {
    display: block;
    padding: 0.6rem 1.2rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--ink-faded);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border-left: 3px solid transparent;
}

.toc-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--ink-red);
    transform: scaleY(0);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.toc-link:hover {
    color: var(--ink-black);
    background: rgba(0, 0, 0, 0.02);
    padding-left: 1.4rem;
}

.toc-link:hover::before,
.toc-link.active::before {
    transform: scaleY(1);
}

.toc-link.active {
    color: var(--ink-black);
    font-weight: 600;
    background: rgba(138, 28, 28, 0.04);
}

.toc-footer {
    padding: 0.8rem 1.2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    text-align: center;
    font-family: var(--font-typewriter);
    font-size: 0.7rem;
    color: var(--ink-light);
}

/* ================================
   RIGHT SIDEBAR - ON THIS PAGE
   ================================ */
.toc-right {
    position: fixed;
    top: 80px;
    right: 2rem;
    width: var(--toc-right-width);
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 50;
    opacity: 1;
    transform: translateX(0);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Hide scrollbar for webkit browsers */
.toc-right::-webkit-scrollbar {
    display: none;
}

/* Hide scrollbar for Firefox */
.toc-right {
    scrollbar-width: none;
}

.toc-right-title {
    font-family: var(--font-typewriter);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    color: var(--ink-light);
    margin-bottom: 0.8rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.toc-right-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-right-list li {
    margin: 0;
}

.toc-right-link {
    display: block;
    padding: 0.4rem 0;
    padding-left: 0.8rem;
    font-family: var(--font-body);
    font-size: 0.8rem;
    color: var(--ink-light);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    line-height: 1.4;
}

.toc-right-link:hover {
    color: var(--ink-black);
    border-left-color: var(--ink-faded);
}

.toc-right-link.active {
    color: var(--ink-red);
    border-left-color: var(--ink-red);
    font-weight: 500;
}

.toc-right-empty {
    padding: 0.4rem 0;
    padding-left: 0.8rem;
    font-family: var(--font-body);
    font-size: 0.75rem;
    color: var(--ink-light);
    font-style: italic;
}

.toc-right-progress {
    position: absolute;
    left: 0;
    top: 2.5rem;
    bottom: 0;
    width: 2px;
    background: rgba(0, 0, 0, 0.06);
}

.toc-right-progress-bar {
    width: 100%;
    background: var(--ink-red);
    transition: height 0.2s ease;
}

/* TOC Toggle Button */
.toc-toggle {
    position: fixed;
    top: 12px;
    left: 1rem;
    z-index: 101;
    width: 40px;
    height: 40px;
    background: var(--paper-cream);
    border: 1px solid rgba(0, 0, 0, 0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    opacity: 0;
    pointer-events: none;
}

.toc-toggle.visible {
    opacity: 1;
    pointer-events: auto;
}

.toc-toggle:hover {
    border-color: var(--ink-black);
}

.toc-toggle-icon {
    width: 18px;
    height: 2px;
    background: var(--ink-black);
    position: relative;
}

.toc-toggle-icon::before,
.toc-toggle-icon::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 2px;
    background: var(--ink-black);
    left: 0;
}

.toc-toggle-icon::before {
    top: -5px;
}

.toc-toggle-icon::after {
    top: 5px;
}

/* ================================
   SCROLL PROGRESS
   ================================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    background: var(--ink-red);
    z-index: 1000;
    width: 0%;
    transition: width 0.1s linear;
}

/* ================================
   CONTENT CONTAINER - FULL WIDTH
   ================================ */
.book-page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 4rem 4rem 4rem;
    position: relative;
    z-index: 1;
    margin-left: calc(var(--toc-width) + 2rem);
    margin-right: calc(var(--toc-right-width) + 2rem);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.book-page.full-width {
    margin-left: auto;
    margin-right: auto;
}

/* ================================
   ANIMATIONS
   ================================ */
@keyframes inkReveal {
    0% {
        opacity: 0;
        filter: blur(4px);
        transform: translateY(15px);
    }
    100% {
        opacity: 1;
        filter: blur(0);
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Initial state for scroll animations */
.chapter {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.chapter.visible {
    opacity: 1;
    transform: translateY(0);
}

.chapter.visible h3 {
    animation: slideInLeft 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.chapter.visible .code-figure {
    animation: scaleIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

.chapter.visible .architecture-flow {
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    animation-delay: 0.15s;
    opacity: 0;
}

.chapter.visible .ledger-table {
    animation: scaleIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

/* Header animation */
.book-page > header {
    animation: inkReveal 1s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.book-page > footer {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.3s;
}

/* ================================
   TYPOGRAPHY
   ================================ */
p {
    text-align: justify;
    margin-bottom: 0;
    text-indent: 2rem;
    font-size: 1.2rem;
}

p.no-indent {
    text-indent: 0;
    margin-top: 1.5rem;
}

/* Drop Caps */
.drop-cap {
    float: left;
    font-family: var(--font-dropcap);
    font-size: 4.5rem;
    line-height: 0.75;
    margin-right: 0.3rem;
    margin-top: 0.1rem;
    margin-bottom: -0.5rem;
    color: var(--ink-black);
}

/* Headers */
h1, h2, h3, h4 {
    text-align: center;
    font-weight: normal;
    text-transform: uppercase;
}

h1.book-title {
    font-size: 3.2rem;
    letter-spacing: 0.15rem;
    margin-top: 2rem;
    margin-bottom: 0.5rem;
    line-height: 1.1;
}

.book-subtitle {
    text-align: center;
    font-size: 1.1rem;
    font-style: italic;
    color: var(--ink-faded);
    margin-bottom: 2rem;
    letter-spacing: 0.03rem;
}

h3 {
    font-size: 1.3rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--ink-black);
    display: inline-block;
    padding-bottom: 0.15rem;
}

h4 {
    font-size: 1.05rem;
    margin-top: 1.8rem;
    margin-bottom: 0.7rem;
    text-align: left;
    color: var(--ink-faded);
    letter-spacing: 0.03rem;
}

/* Decorative Elements */
.separator {
    text-align: center;
    font-size: 1.5rem;
    margin: 2rem 0;
    color: var(--ink-red);
}

/* ================================
   FEATURE GRID
   ================================ */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 1.5rem 0;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: var(--ink-faded);
    padding: 0.5rem 0.7rem;
    border-radius: 4px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: default;
}

.feature-item:hover {
    color: var(--ink-black);
    background: rgba(0, 0, 0, 0.03);
    transform: translateX(4px);
}

.feature-icon {
    color: var(--ink-red);
    font-size: 0.7rem;
    transition: transform 0.3s ease;
}

.feature-item:hover .feature-icon {
    transform: scale(1.2);
}

/* ================================
   ARCHITECTURE FLOW
   ================================ */
.architecture-flow {
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    transition: box-shadow 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.architecture-flow:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.flow-step {
    display: flex;
    gap: 1.2rem;
    align-items: flex-start;
    padding: 0.5rem;
    border-radius: 4px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.flow-step:hover {
    background: rgba(0, 0, 0, 0.02);
}

.flow-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border: 2px solid var(--ink-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ink-red);
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
    background: var(--paper-cream);
}

.flow-step:hover .flow-number {
    background: var(--ink-red);
    color: var(--paper-cream);
    transform: scale(1.1);
}

.flow-content {
    flex: 1;
}

.flow-content strong {
    display: block;
    font-size: 1.05rem;
    margin-bottom: 0.3rem;
    transition: color 0.3s ease;
}

.flow-step:hover .flow-content strong {
    color: var(--ink-red);
}

.flow-content p {
    font-size: 1rem;
    text-indent: 0;
    text-align: left;
}

.flow-connector {
    width: 40px;
    height: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: 0;
    opacity: 0.4;
    transition: opacity 0.3s ease;
    position: relative;
    z-index: 1;
}

.flow-connector::before {
    content: '';
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--ink-red), var(--ink-faded));
}

.architecture-flow:hover .flow-connector {
    opacity: 0.7;
}

/* ================================
   CODE BLOCKS - WITH SYNTAX HIGHLIGHTING
   ================================ */
.code-figure {
    margin: 1.5rem 0;
    background: #fefefe;
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: 4px;
    font-family: var(--font-typewriter);
    font-size: 0.85rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.code-figure:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    border-color: rgba(0, 0, 0, 0.18);
}

.code-header {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 0 0.5rem;
    background: linear-gradient(to bottom, rgba(0,0,0,0.03), transparent);
    z-index: 2;
}

.code-label {
    padding: 0.2rem 0.5rem;
    background: var(--ink-faded);
    color: var(--paper-cream);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.03rem;
    border-radius: 3px;
    opacity: 0.8;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.code-copy-btn {
    position: absolute;
    top: 0;
    right: 0;
    padding: 0.35rem 0.6rem;
    background: var(--ink-black);
    color: var(--paper-cream);
    font-family: var(--font-typewriter);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.03rem;
    border: none;
    border-radius: 0 4px 0 4px;
    cursor: pointer;
    opacity: 0;
    transform: translateY(-100%);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 0.3rem;
    z-index: 3;
}

.code-copy-btn svg {
    width: 12px;
    height: 12px;
}

.code-figure:hover .code-label {
    opacity: 0;
    transform: translateY(-4px);
}

.code-figure:hover .code-copy-btn {
    opacity: 1;
    transform: translateY(0);
}

.code-copy-btn:hover {
    background: var(--ink-red);
}

.code-copy-btn:active {
    transform: scale(0.95);
}

.code-copy-btn.copied {
    background: var(--code-string);
}

.code-figure pre {
    padding: 2.2rem 1rem 1rem;
    margin: 0;
    overflow-x: auto;
}

.code-caption {
    font-size: 0.85rem;
    font-style: italic;
    text-align: center;
    margin-top: 0.5rem;
    color: var(--ink-faded);
    font-family: var(--font-body);
}

pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
}

code {
    font-family: var(--font-typewriter);
}

p code {
    background: rgba(0, 0, 0, 0.05);
    padding: 0.15rem 0.35rem;
    font-size: 0.9em;
    border-radius: 3px;
    transition: background 0.2s ease;
}

p code:hover {
    background: rgba(0, 0, 0, 0.08);
}

/* Syntax highlighting classes */
.code-figure code {
    display: block;
    line-height: 1.6;
}

.code-figure .keyword { color: var(--code-keyword); font-weight: 500; }
.code-figure .string { color: var(--code-string); }
.code-figure .comment { color: var(--code-comment); font-style: italic; }
.code-figure .function { color: var(--code-function); }
.code-figure .variable { color: var(--code-variable); }
.code-figure .number { color: var(--code-number); }
.code-figure .property { color: var(--code-property); }
.code-figure .punctuation { color: var(--ink-faded); }

/* ================================
   NOTE BLOCK
   ================================ */
.note-block {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    margin: 1.2rem 0;
    padding: 1rem 1.2rem;
    background: rgba(138, 28, 28, 0.04);
    border-left: 3px solid var(--ink-red);
    border-radius: 0 4px 4px 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.note-block:hover {
    background: rgba(138, 28, 28, 0.07);
    border-left-width: 5px;
    padding-left: calc(1.2rem - 2px);
}

.note-icon {
    font-size: 1.1rem;
    color: var(--ink-red);
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.note-block:hover .note-icon {
    transform: scale(1.1);
}

.note-text {
    font-size: 0.95rem;
    color: var(--ink-faded);
}

/* ================================
   TABLES
   ================================ */
.ledger-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.2rem 0;
    font-family: var(--font-typewriter);
    font-size: 0.85rem;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.ledger-table th,
.ledger-table td {
    border: 1px solid rgba(0, 0, 0, 0.1);
    padding: 0.75rem 0.9rem;
    text-align: left;
    vertical-align: top;
    transition: all 0.2s ease;
}

.ledger-table th {
    text-transform: uppercase;
    border-bottom: 2px solid var(--ink-black);
    background: rgba(0, 0, 0, 0.04);
    font-size: 0.8rem;
    letter-spacing: 0.03rem;
}

.ledger-table tr {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.ledger-table tbody tr:hover {
    background: rgba(138, 28, 28, 0.04);
    transform: scale(1.005);
}

.ledger-table tbody tr:hover td {
    border-color: rgba(138, 28, 28, 0.15);
}

/* ================================
   LISTS
   ================================ */
ul {
    list-style: none;
    margin: 1.2rem 0;
    padding-left: 1.8rem;
}

ul li {
    margin-bottom: 0.4rem;
    position: relative;
    font-size: 1.1rem;
    text-align: justify;
}

ul li::before {
    content: '\261E';
    position: absolute;
    left: -1.8rem;
    font-size: 1.2rem;
    color: var(--ink-black);
}

/* ================================
   CIPHER DEMO
   ================================ */
.cipher-container {
    margin: 1.5rem 0;
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.4));
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.cipher-container:hover {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border-color: rgba(138, 28, 28, 0.2);
}

.cipher-container label {
    display: block;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink-faded);
    margin-bottom: 0.8rem;
    letter-spacing: 0.03rem;
}

#cipher-input {
    width: 100%;
    max-width: 500px;
    background: rgba(255, 255, 255, 0.8);
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    padding: 0.8rem 1rem;
    font-family: var(--font-typewriter);
    font-size: 1.1rem;
    text-align: center;
    color: var(--ink-black);
    outline: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#cipher-input:focus {
    border-color: var(--ink-red);
    box-shadow: 0 0 0 3px rgba(138, 28, 28, 0.1);
}

#cipher-input::placeholder {
    color: var(--ink-light);
}

.cipher-runes {
    margin-top: 1rem;
    min-height: 2rem;
    max-height: 80px;
    overflow: hidden;
    font-family: 'MedievalSharp', serif;
    font-size: 1.3rem;
    color: var(--ink-red);
    letter-spacing: 0.15rem;
    opacity: 0.9;
    transition: all 0.3s ease;
    word-break: break-all;
    text-overflow: ellipsis;
    padding: 0.5rem;
    background: rgba(138, 28, 28, 0.03);
    border-radius: 4px;
}

/* ================================
   FOOTER
   ================================ */
footer {
    text-align: center;
    margin-top: 3rem;
    margin-bottom: 2rem;
    font-size: 0.95rem;
    color: var(--ink-faded);
    border-top: 1px double var(--ink-black);
    padding-top: 1rem;
    width: 50%;
    margin-left: auto;
    margin-right: auto;
}

.signature-stamp {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem auto;
    border: 3px double var(--ink-red);
    color: var(--ink-red);
    display: flex;
    align-items: center;
    justify-content: center;
    transform: rotate(-8deg);
    opacity: 0.7;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.signature-stamp:hover {
    transform: rotate(0deg);
    opacity: 1;
}

.signature-stamp span {
    font-family: var(--font-dropcap);
    font-size: 2rem;
    text-transform: uppercase;
}

.footer-links {
    margin-top: 0.8rem;
}

.footer-links a {
    color: var(--ink-faded);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--ink-red);
}

.footer-sep {
    margin: 0 0.4rem;
    color: var(--ink-light);
}

/* ================================
   CANVAS BACKGROUND
   ================================ */
#ascii-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.15;
    mix-blend-mode: multiply;
}

/* ================================
   RESPONSIVE
   ================================ */
/* Large screens */
@media (min-width: 1600px) {
    :root {
        --toc-right-width: 220px;
        /* Общая ширина: toc (180) + gap (32) + book (1200) + gap (32) + toc-right (220) = 1664px */
        --content-total-width: 1664px;
    }
    
    /* Центрируем весь контент */
    .toc {
        left: calc(50% - var(--content-total-width) / 2);
    }
    
    .book-page {
        max-width: 1200px;
        padding: 4rem 5rem 4rem;
        margin-left: calc(50% - var(--content-total-width) / 2 + var(--toc-width) + 2rem);
        margin-right: 0;
    }
    
    .toc-right {
        left: calc(50% - var(--content-total-width) / 2 + var(--toc-width) + 2rem + 1200px + 2rem);
        right: auto;
    }
    
    .copy-menu-container {
        right: calc(50% - var(--content-total-width) / 2 - 1.5rem);
        left: auto;
    }
    
    p {
        font-size: 1.2rem;
    }
}

@media (min-width: 1900px) {
    :root {
        --toc-right-width: 240px;
        /* Общая ширина: toc (180) + gap (48) + book (1300) + gap (48) + toc-right (240) = 1816px */
        --content-total-width: 1816px;
    }
    
    /* Центрируем весь контент */
    .toc {
        left: calc(50% - var(--content-total-width) / 2);
    }
    
    .book-page {
        max-width: 1300px;
        padding: 4rem 6rem 4rem;
        margin-left: calc(50% - var(--content-total-width) / 2 + var(--toc-width) + 3rem);
        margin-right: 0;
    }
    
    .toc-right {
        left: calc(50% - var(--content-total-width) / 2 + var(--toc-width) + 3rem + 1300px + 3rem);
        right: auto;
    }
    
    .copy-menu-container {
        right: calc(50% - var(--content-total-width) / 2 - 1.5rem);
        left: auto;
    }
    
    p {
        font-size: 1.25rem;
    }
}

@media (max-width: 1200px) {
    .toc-right {
        display: none;
    }
    
    .book-page {
        margin-right: 2rem;
    }
}

@media (max-width: 1000px) {
    .toc {
        transform: translateX(-100%);
    }
    
    .toc.visible {
        transform: translateX(0);
    }
    
    .toc-toggle {
        opacity: 1;
        pointer-events: auto;
    }
    
    .book-page {
        width: 100%;
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
        padding: 4rem 2rem 3rem;
    }
    
    .copy-menu-container {
        right: 1rem;
    }
}

@media (max-width: 600px) {
    :root {
        --toc-width: 100%;
    }
    
    .toc {
        width: 100%;
    }
    
    .book-page {
        padding: 4rem 1.2rem 2rem;
    }

    h1.book-title {
        font-size: 2rem;
    }

    .drop-cap {
        font-size: 3rem;
    }
    
    p {
        font-size: 1.05rem;
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .architecture-flow {
        padding: 0.8rem;
    }
    
    .flow-step {
        flex-direction: column;
        gap: 0.6rem;
    }
    
    .flow-connector {
        height: 16px;
        margin-left: 0;
        margin: 0 auto;
    }
    
    .copy-menu-container {
        right: 0.8rem;
        top: 8px;
    }
    
    .copy-menu-trigger {
        padding: 0.4rem 0.6rem;
        font-size: 0.8rem;
    }
    
    .copy-menu-trigger span {
        display: none;
    }
    
    .copy-menu-dropdown {
        width: 260px;
    }

    /* Mobile Table Fix */
    .ledger-table,
    .ledger-table tbody,
    .ledger-table tr,
    .ledger-table td {
        display: block;
        width: 100%;
    }

    .ledger-table thead {
        display: none;
    }

    .ledger-table tr {
        margin-bottom: 0.8rem;
        border: 1px solid rgba(0, 0, 0, 0.1);
        padding: 0.4rem;
    }

    .ledger-table td {
        border: none;
        border-bottom: 1px dotted rgba(0, 0, 0, 0.1);
        padding: 0.4rem 0;
        text-align: left;
        word-break: break-all;
    }

    .ledger-table td:last-child {
        border-bottom: none;
    }

    .ledger-table td::before {
        content: attr(data-label);
        display: block;
        font-weight: bold;
        font-size: 0.7rem;
        color: var(--ink-faded);
        margin-bottom: 0.15rem;
    }
}

/* ================================
   SELECTION STYLE
   ================================ */
::selection {
    background: rgba(138, 28, 28, 0.15);
    color: var(--ink-black);
}

/* ================================
   SCROLLBAR
   ================================ */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}