/* ============================================================
   TRADE THE MECHANICS — chapter.css
   Styles for the chapter reader pages
   ============================================================ */

/* ── CHAPTER LAYOUT ── */
.chapter-page {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 4rem;
    align-items: start;
    padding: 4rem 0 6rem;
}

/* ── CHAPTER HEADER ── */
.chapter-header {
    border-bottom: 1px solid var(--border);
    padding: 3rem 0;
    margin-bottom: 0;
}

.chapter-header-inner {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 2rem;
}

.chapter-eyebrow {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--green);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chapter-eyebrow::before {
    content: '';
    display: block;
    width: 24px;
    height: 1px;
    background: var(--green);
}

.chapter-header h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(2.5rem, 4vw, 3.75rem);
    letter-spacing: 0.02em;
    line-height: 1;
    color: var(--text);
    margin-bottom: 1.25rem;
}

.chapter-header-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.chapter-meta-item {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.chapter-meta-item span {
    color: var(--text);
}

.chapter-free-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--green-dim);
    border: 1px solid var(--green-border);
    color: var(--green);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.3rem 0.75rem;
    border-radius: 100px;
}

/* ── CHAPTER CONTENT ── */
.chapter-content {
    min-width: 0;
}

.chapter-body {
    font-family: 'Source Serif 4', serif;
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-muted);
}

.chapter-body p {
    margin-bottom: 1.5rem;
}

.chapter-body p:last-child {
    margin-bottom: 0;
}

.chapter-body strong {
    color: var(--text);
    font-weight: 600;
}

.chapter-body em {
    color: var(--text);
    font-style: italic;
}

/* Section anchors */
.chapter-section {
    padding-top: 1rem;
}

/* Section divider (replaces * * *) */
.section-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 3rem 0;
}

/* Section headings within chapter */
.chapter-body h2 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.75rem;
    letter-spacing: 0.03em;
    color: var(--text);
    margin: 3rem 0 1.25rem;
    line-height: 1;
}

/* Pull quotes / callouts */
.chapter-callout {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-left: 3px solid var(--green);
    border-radius: 0 8px 8px 0;
    padding: 1.5rem 1.75rem;
    margin: 2.5rem 0;
    font-family: 'Source Serif 4', serif;
    font-size: 1rem;
    line-height: 1.75;
    color: var(--text);
}

/* Key term highlight */
.key-term {
    color: var(--green);
    font-weight: 600;
}

/* Lists in chapter content */
.chapter-body ul,
.chapter-body ol {
    margin: 1.5rem 0;
    padding-left: 0;
    list-style: none;
}

.chapter-body ul li,
.chapter-body ol li {
    font-family: 'Source Serif 4', serif;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-muted);
    padding: 0.4rem 0 0.4rem 1.5rem;
    position: relative;
    border-bottom: 1px solid var(--border);
}

.chapter-body ul li:last-child,
.chapter-body ol li:last-child {
    border-bottom: none;
}

.chapter-body ul li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--green);
    font-weight: 600;
}

/* ── STICKY SIDEBAR ── */
.chapter-sidebar {
    position: sticky;
    top: calc(var(--nav-height) + 2rem);
}

.toc-card {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
}

.toc-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.toc-list {
    list-style: none;
    padding: 0.5rem 0;
}

.toc-list li a {
    display: block;
    padding: 0.6rem 1.25rem;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--text-muted);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
    line-height: 1.4;
}

.toc-list li a:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.03);
}

.toc-list li a.active {
    color: var(--green);
    border-left-color: var(--green);
    background: var(--green-dim);
}

/* Chapter nav in sidebar */
.chapter-nav-card {
    margin-top: 1rem;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
}

.chapter-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: background 0.2s, color 0.2s;
    gap: 0.75rem;
}

.chapter-nav-link:hover {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text);
}

.chapter-nav-link + .chapter-nav-link {
    border-top: 1px solid var(--border);
}

.chapter-nav-link .nav-label {
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-faint);
    display: block;
    margin-bottom: 0.2rem;
}

.chapter-nav-link .nav-title {
    color: var(--text-muted);
    font-family: 'Source Serif 4', serif;
    font-size: 0.82rem;
    font-weight: 400;
    letter-spacing: 0;
    text-transform: none;
    line-height: 1.4;
}

.chapter-nav-link:hover .nav-title {
    color: var(--text);
}

/* ── CHAPTER FOOTER NAV ── */
.chapter-footer-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.chapter-footer-link {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s, background 0.2s;
    display: block;
}

.chapter-footer-link:hover {
    border-color: var(--green-border);
    background: #09161f;
}

.chapter-footer-link .direction {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.chapter-footer-link .title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.2rem;
    letter-spacing: 0.02em;
    color: var(--text);
    line-height: 1.1;
}

.chapter-footer-link.next {
    text-align: right;
}

.chapter-footer-link.locked {
    opacity: 0.5;
    cursor: default;
    pointer-events: none;
}

/* ── MOBILE ── */
@media (max-width: 900px) {
    .chapter-page {
        grid-template-columns: 1fr;
        gap: 0;
        padding: 2rem 0 4rem;
    }

    .chapter-sidebar {
        position: static;
        order: -1;
        margin-bottom: 2rem;
    }

    .toc-card {
        border-radius: 8px;
    }

    .chapter-nav-card {
        display: none;
    }

    .chapter-header h1 {
        font-size: 2.5rem;
    }

    .chapter-footer-nav {
        grid-template-columns: 1fr;
    }

    .chapter-footer-link.next {
        text-align: left;
    }
}

@media (max-width: 480px) {
    .chapter-body {
        font-size: 1rem;
    }

    .chapter-header h1 {
        font-size: 2rem;
    }
}
// ── COPY PROTECTION ── 
.chapter-body {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
.toc-card .toc-list {
    max-height: 60vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border-light) transparent;
}