/* ============================================
   AI SECURITY BOOK — PURPLE/BLACK HACKER THEME
   v3: Fixed font sizes + section numbering
   ============================================ */

:root {
    --hacker-bg-dark: #0d0d12;
    --hacker-bg-mid: #13131a;
    --hacker-bg-surface: #1a1a24;
    --hacker-bg-elevated: #22222e;
    --hacker-purple-glow: #a855f7;
    --hacker-purple-soft: #7c3aed;
    --hacker-purple-dim: #6d28d9;
    --hacker-purple-bg: #2e1065;
    --hacker-purple-bg-subtle: #1e0a3e;
    --hacker-text-primary: #e2e0ea;
    --hacker-text-secondary: #9590ab;
    --hacker-text-muted: #6b6681;
    --hacker-green-accent: #4ade80;
    --hacker-border: #2a2a3a;
    --hacker-border-hover: #3d3a52;
}

/* === GLOBAL FONT SIZE FIX === */
.content main {
    font-size: 17px !important;
    line-height: 1.8 !important;
    color: var(--hacker-text-primary) !important;
}

/* === SIDEBAR === */
.sidebar {
    background: var(--hacker-bg-dark) !important;
    border-right: 1px solid var(--hacker-border) !important;
    font-size: 15px !important;
}

.sidebar .sidebar-scrollbox {
    background: var(--hacker-bg-dark) !important;
}

/* Part titles in sidebar */
.sidebar .chapter li.part-title {
    color: var(--hacker-purple-glow) !important;
    font-weight: 600 !important;
    font-size: 13px !important;
    letter-spacing: 0.08em !important;
    text-transform: uppercase !important;
    padding: 16px 0 4px 0 !important;
    border-top: 1px solid var(--hacker-border) !important;
    margin-top: 8px !important;
}

.sidebar .chapter li.part-title:first-child {
    border-top: none !important;
    margin-top: 0 !important;
}

/* Sidebar links */
.sidebar .chapter li a {
    color: var(--hacker-text-secondary) !important;
    transition: color 0.15s, background 0.15s !important;
    padding: 5px 12px 5px 20px !important;
    border-radius: 4px !important;
    margin: 1px 8px !important;
    font-size: 15px !important;
}

.sidebar .chapter li a:hover {
    color: var(--hacker-text-primary) !important;
    background: var(--hacker-purple-bg-subtle) !important;
}

/* Active sidebar link */
.sidebar .chapter li.chapter-item a.active,
.sidebar .chapter li a.active {
    color: var(--hacker-purple-glow) !important;
    background: var(--hacker-purple-bg) !important;
    border-left: 2px solid var(--hacker-purple-glow) !important;
    font-weight: 500 !important;
}

/* Sidebar section numbers — hide default and restart per section */
.sidebar .chapter li a .section {
    color: var(--hacker-text-muted) !important;
    font-size: 14px !important;
}

/* === MAIN CONTENT === */
.page-wrapper,
.page-wrapper .page {
    background: var(--hacker-bg-mid) !important;
}

.content {
    max-width: 860px !important;
    padding: 0 24px !important;
}

/* Headings */
.content main h1 {
    color: var(--hacker-purple-glow) !important;
    font-weight: 600 !important;
    font-size: 30px !important;
    border-bottom: 1px solid var(--hacker-border) !important;
    padding-bottom: 10px !important;
    margin-top: 0 !important;
}

.content main h2 {
    color: var(--hacker-text-primary) !important;
    font-weight: 600 !important;
    font-size: 23px !important;
    margin-top: 2em !important;
    padding-bottom: 6px !important;
    border-bottom: 1px solid var(--hacker-border) !important;
}

.content main h3 {
    color: var(--hacker-purple-soft) !important;
    font-weight: 500 !important;
    font-size: 19px !important;
    margin-top: 1.5em !important;
}

.content main h4 {
    color: var(--hacker-text-secondary) !important;
    font-size: 17px !important;
}

/* Paragraph text */
.content main p {
    color: var(--hacker-text-primary) !important;
    font-size: 17px !important;
    line-height: 1.8 !important;
    margin-bottom: 14px !important;
}

/* Links */
.content main a {
    color: var(--hacker-purple-glow) !important;
    text-decoration: none !important;
    border-bottom: 1px solid transparent !important;
    transition: border-color 0.15s !important;
}

.content main a:hover {
    border-bottom-color: var(--hacker-purple-glow) !important;
}

/* Strong/bold text */
.content main strong {
    color: #fff !important;
    font-weight: 600 !important;
}

/* === CODE BLOCKS === */
.content main code {
    background: var(--hacker-bg-surface) !important;
    color: var(--hacker-green-accent) !important;
    padding: 2px 6px !important;
    border-radius: 4px !important;
    font-size: 15px !important;
    border: 1px solid var(--hacker-border) !important;
}

.content main pre {
    background: var(--hacker-bg-dark) !important;
    border: 1px solid var(--hacker-border) !important;
    border-radius: 6px !important;
    padding: 18px !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
    margin: 16px 0 !important;
}

.content main pre code {
    background: transparent !important;
    border: none !important;
    color: var(--hacker-text-primary) !important;
    padding: 0 !important;
    font-size: 15px !important;
    line-height: 1.6 !important;
}

/* === TABLES — LARGER FONT === */
.content main table {
    border-collapse: collapse !important;
    width: 100% !important;
    border: 1px solid var(--hacker-border) !important;
    border-radius: 6px !important;
    overflow: hidden !important;
    margin: 18px 0 !important;
    font-size: 16px !important;
}

.content main table th {
    background: var(--hacker-purple-bg) !important;
    color: var(--hacker-purple-glow) !important;
    font-weight: 600 !important;
    text-align: left !important;
    padding: 12px 16px !important;
    border-bottom: 1px solid var(--hacker-purple-dim) !important;
    font-size: 16px !important;
    letter-spacing: 0.02em !important;
}

.content main table td {
    padding: 12px 16px !important;
    border-bottom: 1px solid var(--hacker-border) !important;
    color: var(--hacker-text-primary) !important;
    font-size: 16px !important;
    line-height: 1.6 !important;
}

.content main table tr:nth-child(even) {
    background: var(--hacker-bg-surface) !important;
}

.content main table tr:hover {
    background: var(--hacker-purple-bg-subtle) !important;
}

/* === BLOCKQUOTES === */
.content main blockquote {
    background: var(--hacker-bg-surface) !important;
    border-left: 3px solid var(--hacker-purple-glow) !important;
    color: var(--hacker-text-secondary) !important;
    padding: 14px 18px !important;
    margin: 18px 0 !important;
    border-radius: 0 6px 6px 0 !important;
    font-size: 16px !important;
}

.content main blockquote p {
    color: var(--hacker-text-secondary) !important;
    font-size: 16px !important;
}

/* === LISTS — LARGER FONT === */
.content main ul,
.content main ol {
    font-size: 17px !important;
    margin: 10px 0 !important;
}

.content main ul li,
.content main ol li {
    color: var(--hacker-text-primary) !important;
    margin: 6px 0 !important;
    line-height: 1.7 !important;
    font-size: 17px !important;
}

.content main ul li::marker {
    color: var(--hacker-purple-soft) !important;
}

/* === HORIZONTAL RULES === */
.content main hr {
    border: none !important;
    border-top: 1px solid var(--hacker-border) !important;
    margin: 2em 0 !important;
}

/* === NAVIGATION ARROWS (prev/next) === */
.nav-chapters {
    color: var(--hacker-text-muted) !important;
    font-size: 2.5em !important;
    transition: color 0.15s !important;
}

.nav-chapters:hover {
    color: var(--hacker-purple-glow) !important;
}

/* === TOP MENU BAR === */
.menu-bar,
.menu-bar.bordered {
    background: var(--hacker-bg-dark) !important;
    border-bottom: 1px solid var(--hacker-border) !important;
}

.menu-bar .icon-button {
    color: var(--hacker-text-muted) !important;
}

.menu-bar .icon-button:hover {
    color: var(--hacker-purple-glow) !important;
}

/* === SEARCH === */
#searchbar {
    background: var(--hacker-bg-surface) !important;
    border: 1px solid var(--hacker-border) !important;
    color: var(--hacker-text-primary) !important;
    border-radius: 6px !important;
    font-size: 16px !important;
}

#searchbar:focus {
    border-color: var(--hacker-purple-soft) !important;
    box-shadow: 0 0 0 2px rgba(168, 85, 247, 0.2) !important;
}

.searchresults a {
    color: var(--hacker-purple-glow) !important;
}

.search-results .search-results-title {
    color: var(--hacker-text-primary) !important;
}

#searchresults-outer {
    background: var(--hacker-bg-surface) !important;
    border: 1px solid var(--hacker-border) !important;
}

mark {
    background: var(--hacker-purple-bg) !important;
    color: var(--hacker-purple-glow) !important;
    border-radius: 2px !important;
    padding: 1px 3px !important;
}

/* === THEME TOGGLE === */
#theme-list {
    background: var(--hacker-bg-surface) !important;
    border: 1px solid var(--hacker-border) !important;
}

#theme-list li {
    color: var(--hacker-text-secondary) !important;
}

#theme-list li:hover {
    background: var(--hacker-purple-bg-subtle) !important;
    color: var(--hacker-text-primary) !important;
}

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

::-webkit-scrollbar-track {
    background: var(--hacker-bg-dark) !important;
}

::-webkit-scrollbar-thumb {
    background: var(--hacker-border-hover) !important;
    border-radius: 3px !important;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--hacker-purple-dim) !important;
}

/* === SELECTION HIGHLIGHT === */
::selection {
    background: var(--hacker-purple-bg) !important;
    color: var(--hacker-purple-glow) !important;
}