/* ==========================================
   Custom styles for Knowledge Base org notes
   ========================================== */

:root {
    --bg: #ffffff;
    --fg: #2d2d2d;
    --fg-muted: #666666;
    --fg-dim: #999999;
    --border: #e2e2e2;
    --accent: #4a90d9;
    --accent-light: #e8f0fe;
    --code-bg: #f6f8fa;
    --blockquote-bg: #f8f9fa;
    --blockquote-border: #4a90d9;
    --table-stripe: #f8f9fa;
    --tag-bg: #e8f0fe;
    --tag-fg: #4a90d9;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
    font-size: 17px;
    line-height: 1.7;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1a1a2e;
        --fg: #e0e0e0;
        --fg-muted: #a0a0a0;
        --fg-dim: #777;
        --border: #333;
        --accent: #6db3f2;
        --accent-light: #1e2a3a;
        --code-bg: #252535;
        --blockquote-bg: #1e2330;
        --blockquote-border: #6db3f2;
        --table-stripe: #1e2330;
        --tag-bg: #1e2a3a;
        --tag-fg: #6db3f2;
        --shadow: 0 1px 3px rgba(0,0,0,0.3);
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                 "Helvetica Neue", Arial, "Noto Sans", sans-serif,
                 "Apple Color Emoji", "Segoe UI Emoji";
    background: var(--bg);
    color: var(--fg);
    max-width: 80rem;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

#content, #table-of-contents {
    max-width: 100%;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--fg);
    margin-top: 2em;
    margin-bottom: 0.6em;
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: 2em; border-bottom: 2px solid var(--border); padding-bottom: 0.3em; }
h2 { font-size: 1.5em; border-bottom: 1px solid var(--border); padding-bottom: 0.2em; }
h3 { font-size: 1.25em; }
h4 { font-size: 1.1em; color: var(--fg-muted); }

.title {
    font-size: 2.2em;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 0.3em;
    margin-bottom: 0.3em;
    text-align: left;
}

p { margin: 0.8em 0; }

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

#table-of-contents {
    background: var(--accent-light);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.2em 1.5em;
    margin: 1.5em 0 2em;
    font-size: 0.95em;
}

#table-of-contents h2 {
    margin-top: 0;
    font-size: 1.1em;
    border-bottom: none;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

#table-of-contents ul {
    list-style: none;
    padding-left: 0;
}

#table-of-contents li {
    margin: 0.3em 0;
}

#table-of-contents ul ul {
    padding-left: 1.5em;
}

#table-of-contents a {
    color: var(--fg-muted);
    display: block;
    padding: 0.15em 0;
    border-radius: 4px;
    transition: all 0.15s ease;
}

#table-of-contents a:hover {
    color: var(--accent);
    text-decoration: none;
    background: rgba(74, 144, 217, 0.08);
}

pre {
    background: var(--code-bg) !important;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1em 1.2em;
    overflow-x: auto;
    font-size: 0.88em;
    line-height: 1.5;
    box-shadow: var(--shadow);
    margin: 1.2em 0;
}

pre.src {
    position: relative;
}

pre.src::before {
    display: none !important;
}

code {
    background: var(--code-bg);
    padding: 0.15em 0.4em;
    border-radius: 3px;
    font-size: 0.9em;
    border: 1px solid var(--border);
}

pre code {
    background: transparent;
    padding: 0;
    border: none;
    font-size: inherit;
}

.org-ol, .org-ul {
    padding-left: 1.5em;
}

.org-ol li, .org-ul li {
    margin: 0.3em 0;
}

.tag {
    background: var(--tag-bg);
    color: var(--tag-fg);
    padding: 0.15em 0.5em;
    border-radius: 12px;
    font-size: 0.75em;
    font-weight: 500;
}

.tag span {
    display: none;
}

.timestamp, .timestamp-kwd {
    font-size: 0.85em;
    color: var(--fg-dim);
}

table {
    border-collapse: collapse;
    width: 100%;
    margin: 1.2em 0;
    box-shadow: var(--shadow);
    border-radius: 6px;
    overflow: hidden;
}

th {
    background: var(--accent);
    color: #fff;
    padding: 0.6em 0.8em;
    text-align: left;
    font-weight: 600;
}

td {
    padding: 0.5em 0.8em;
    border-bottom: 1px solid var(--border);
}

tr:nth-child(even) td {
    background: var(--table-stripe);
}

blockquote {
    background: var(--blockquote-bg);
    border-left: 4px solid var(--blockquote-border);
    margin: 1.2em 0;
    padding: 0.8em 1.2em;
    border-radius: 0 6px 6px 0;
}

blockquote p {
    margin: 0.3em 0;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

figure {
    margin: 1.5em 0;
    text-align: center;
}

figcaption {
    font-size: 0.9em;
    color: var(--fg-muted);
    margin-top: 0.5em;
}

.todo {
    color: #e74c3c;
    font-weight: bold;
}

.done {
    color: #27ae60;
    font-weight: bold;
}

.outline-2 {
    margin-top: 1.5em;
}

.outline-text-2, .outline-text-3, .outline-text-4 {
    margin-left: 0;
}

.org-info {
    margin-top: 0.5em;
    font-size: 0.85em;
    color: var(--fg-dim);
}

.kb-footer {
    margin-top: 3em;
    padding-top: 1.5em;
    border-top: 1px solid var(--border);
    text-align: center;
}

.kb-footer a {
    color: var(--fg-muted);
    text-decoration: none;
    font-size: 0.9em;
    padding: 0.5em 1em;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.kb-footer a:hover {
    color: var(--accent);
    background: var(--accent-light);
    text-decoration: none;
}

pre.example {
    background: var(--accent-light);
    border: none;
    box-shadow: none;
}

/* ==========================================
   TOC Sidebar — fixed right panel with scroll-spy
   ========================================== */

.toc-sidebar {
    position: fixed;
    right: 0;
    top: 0;
    width: 260px;
    height: 100vh;
    background: var(--bg);
    border-left: 1px solid var(--border);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    box-shadow: -1px 0 8px rgba(0,0,0,0.06);
    transition: transform 0.3s ease;
}

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

.toc-sidebar-header {
    display: flex;
    align-items: center;
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.75em;
    font-weight: 600;
    color: var(--fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    flex-shrink: 0;
}

.toc-sidebar-header span {
    flex: 1;
}

.toc-sidebar-close {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    border: none;
    background: transparent;
    color: var(--fg-muted);
    cursor: pointer;
    font-size: 1.2em;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, color 0.2s;
    flex-shrink: 0;
}

.toc-sidebar-close:hover {
    background: var(--accent-light);
    color: var(--accent);
}

.toc-sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 0.4rem 0;
}

/* Floating toggle button — visible when sidebar is hidden */
.toc-sidebar-toggle {
    position: fixed;
    right: 12px;
    top: 12px;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--fg-muted);
    cursor: pointer;
    font-size: 1.1em;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
    transition: background 0.2s, color 0.2s;
}

.toc-sidebar-toggle:hover {
    background: var(--accent-light);
    color: var(--accent);
}

.toc-sidebar-toggle.visible {
    display: flex;
}

/* Override #table-of-contents inside sidebar (remove box styling) */
.toc-sidebar-content #table-of-contents {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0;
    margin: 0;
    font-size: 0.88em;
    box-shadow: none;
}

.toc-sidebar-content #table-of-contents h2 {
    display: none;
}

.toc-sidebar-content #table-of-contents ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.toc-sidebar-content #table-of-contents li {
    margin: 0;
}

.toc-sidebar-content #table-of-contents a {
    display: block;
    padding: 0.35em 1rem 0.35em 1.2em;
    color: var(--fg-muted);
    text-decoration: none;
    border-left: 3px solid transparent;
    border-radius: 0;
    transition: all 0.15s ease;
}

.toc-sidebar-content #table-of-contents a:hover {
    color: var(--accent);
    background: var(--accent-light);
    text-decoration: none;
}

.toc-sidebar-content #table-of-contents a.active {
    color: var(--accent);
    border-left-color: var(--accent);
    background: var(--accent-light);
}

.toc-sidebar-content #table-of-contents ul ul a {
    padding-left: 2.2em;
}

.toc-sidebar-content #table-of-contents ul ul ul a {
    padding-left: 3.2em;
}

/* Push body content left to make room for sidebar */
body.toc-visible {
    padding-right: calc(260px + 1.5rem);
}

@media (max-width: 768px) {
    body {
        padding: 1rem;
        font-size: 16px;
    }

    h1 { font-size: 1.6em; }
    h2 { font-size: 1.3em; }
    h3 { font-size: 1.1em; }

    #table-of-contents {
        padding: 0.8em 1em;
    }

    .toc-sidebar {
        width: 280px;
        box-shadow: -2px 0 20px rgba(0,0,0,0.15);
    }

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

    body.toc-visible {
        padding-right: 1rem;
    }

    .toc-sidebar-toggle {
        right: 8px;
        top: 8px;
    }
}