/* ── Changelog Page ── */

:root {
    --cl-text: #24292f;
    --cl-text-secondary: #57606a;
    --cl-text-muted: #6e7781;
    --cl-green: #4e964f;
    --cl-green-bg: #dafbe1;
    --cl-blue: #0969da;
    --cl-blue-bg: #ddf4ff;
    --cl-red: #cf222e;
    --cl-red-bg: #ffebe9;
    --cl-pill-bg: #f6f8fa;
    --cl-border: #d0d7de;
    --cl-hover-bg: #f3f4f6;
    --cl-font-mono: 'Source Code Pro', 'SF Mono', 'Consolas', monospace;
    --cl-sidebar-width: 260px;
    --cl-navbar-height: 95px;
}

/* ── Page Wrapper (flex: sidebar + content) ── */
.cl-page-wrapper {
    display: flex;
    max-width: 1140px;
    margin: 0 auto;
    gap: 40px;
}

/* ── Sidebar (uses <aside> to avoid PLT_main.css nav a conflict) ── */
.cl-sidebar {
    position: sticky;
    top: var(--cl-navbar-height);
    align-self: flex-start;
    width: var(--cl-sidebar-width);
    flex-shrink: 0;
    height: calc(100vh - var(--cl-navbar-height));
    overflow-y: auto;
    padding: 24px 0 32px 0;
    scrollbar-width: thin;
    scrollbar-color: var(--cl-border) transparent;
}

.cl-sidebar::-webkit-scrollbar {
    width: 4px;
}

.cl-sidebar::-webkit-scrollbar-thumb {
    background: var(--cl-border);
    border-radius: 4px;
}

.cl-sidebar-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--cl-text-muted);
    padding: 4px 16px 16px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--cl-border);
}

/* ── Sidebar Nav List ── */
.cl-sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.cl-sidebar-nav li {
    margin: 0;
}

.cl-sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 10px 16px;
    text-decoration: none;
    color: var(--cl-text-secondary);
    border-left: 3px solid transparent;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
    cursor: pointer;
}

.cl-sidebar-nav a:hover {
    background: var(--cl-hover-bg);
    color: var(--cl-text);
    text-decoration: none;
}

.cl-sidebar-nav a.active {
    border-left-color: var(--cl-text);
    background: var(--cl-hover-bg);
    color: var(--cl-text);
}

.cl-nav-version {
    font-family: var(--cl-font-mono);
    font-size: 13px;
    font-weight: 600;
    line-height: 1.3;
}

.cl-sidebar-nav a.active .cl-nav-version {
    font-weight: 700;
}

/* ── Content Column ── */
.cl-content {
    flex: 1;
    min-width: 0;
    max-width: 860px;
    padding: 24px 0 60px;
}

.cl-page-title {
    font-family: var(--cl-font-mono);
    font-size: 28px;
    font-weight: 700;
    color: var(--cl-text);
    margin-bottom: 4px;
}

.cl-page-subtitle {
    font-family: var(--cl-font-mono);
    font-size: 14px;
    color: var(--cl-text-muted);
    margin-bottom: 28px;
}

/* ── Version Block (two-column: aside + main) ── */
.cl-version-block {
    display: flex;
    gap: 0;
    padding: 32px 0;
    border-top: 1px solid var(--cl-border);
}

.cl-version-block:first-of-type {
    border-top: none;
    padding-top: 0;
}

.cl-version-block.cl-animate-in {
    opacity: 0;
    transform: translateY(12px);
    animation: none;
}

.cl-version-block.cl-animate-in.visible {
    animation: clFadeSlideIn 0.4s ease forwards;
}

@keyframes clFadeSlideIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .cl-version-block.cl-animate-in {
        opacity: 1;
        transform: none;
        animation: none;
    }
}

/* Left column — version + date */
.cl-version-aside {
    width: 150px;
    flex-shrink: 0;
    padding-right: 32px;
}

.cl-version-aside-inner {
    position: sticky;
    top: calc(var(--cl-navbar-height) + 32px);
}

.cl-version-number {
    font-family: var(--cl-font-mono);
    font-size: 15px;
    font-weight: 600;
    color: var(--cl-text);
    display: block;
    margin-bottom: 4px;
}

.cl-version-date {
    font-family: var(--cl-font-mono);
    font-size: 13px;
    color: var(--cl-text-muted);
    display: block;
}

/* Right column — title + content */
.cl-version-main {
    flex: 1;
    min-width: 0;
    font-family: var(--cl-font-mono);
}

.cl-version-title {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.3px;
    color: var(--cl-text);
    margin-top: 0;
    margin-bottom: 16px;
}
.cl-version-title::before { content: "\201C"; }
.cl-version-title::after  { content: "\201D"; }

/* ── Category Sections ── */
.cl-category-section {
    margin-bottom: 0;
}

.cl-change-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0;
}

.cl-change-list li {
    position: relative;
    padding: 3px 0 3px 12px;
    font-size: 12px;
    font-weight: 400;
    color: var(--cl-text);
    line-height: 1.6;
}

.cl-change-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 13px;
    width: 4px;
    height: 4px;
    border-radius: 1px;
    background: var(--cl-border);
}

/* Item labels (Added / Improved / Fixed) */
.cl-item-label {
    font-family: var(--cl-font-mono);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--cl-text-muted);
    margin-right: 6px;
}

/* ── Filter Bar ── */
.cl-filter-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
}

.cl-filter-check {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--cl-font-mono);
    font-size: 13px;
    font-weight: 500;
    color: var(--cl-text-secondary);
    cursor: pointer;
    user-select: none;
    transition: color 0.15s;
}

.cl-filter-check:hover {
    color: var(--cl-text);
}

.cl-filter-check input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.cl-check-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border: 1.5px solid var(--cl-border);
    border-radius: 3px;
    background: #fff;
    transition: background 0.15s, border-color 0.15s;
    flex-shrink: 0;
}

.cl-check-box::after {
    content: '';
    display: none;
    width: 4px;
    height: 8px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    margin-top: -2px;
}

.cl-filter-check input:checked ~ .cl-check-box {
    background: var(--cl-text);
    border-color: var(--cl-text);
}

.cl-filter-check input:checked ~ .cl-check-box::after {
    display: block;
}

/* ── Filter Visibility ── */
.cl-category-section.cl-filtered-out {
    display: none;
}

.cl-version-block.cl-block-hidden {
    display: none !important;
}

/* ── Mobile Nav ──
   This IS inside a <nav>, so PLT_main.css `nav a` rules apply.
   Override every property that `nav a` sets with !important. */
.cl-mobile-nav {
    display: none;
}

@media (max-width: 768px) {
    /* Show mobile nav, hide sidebar */
    .cl-mobile-nav {
        display: block;
        position: sticky;
        top: var(--cl-navbar-height);
        z-index: 100;
        background: #fff;
        border-bottom: 1px solid var(--cl-border);
        padding: 0;
    }

    .cl-mobile-nav-inner {
        display: flex;
        align-items: center;
        gap: 4px;
        padding: 10px 16px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .cl-mobile-nav-inner::-webkit-scrollbar {
        display: none;
    }

    /* Override PLT_main.css nav a rules on mobile brand */
    .cl-mobile-brand {
        color: var(--cl-green) !important;
        display: flex !important;
        font-size: 13px !important;
        font-weight: 700 !important;
        text-shadow: none !important;
        letter-spacing: -0.2px !important;
        text-decoration: none !important;
        white-space: nowrap;
        padding-right: 12px;
        margin-right: 8px;
        border-right: 1px solid var(--cl-border);
        flex-shrink: 0;
    }

    /* Override PLT_main.css nav a rules on mobile links */
    .cl-mobile-link {
        color: var(--cl-text-secondary) !important;
        display: inline-flex !important;
        font-size: 12px !important;
        font-weight: 500 !important;
        text-shadow: none !important;
        letter-spacing: 0 !important;
        text-decoration: none !important;
        font-family: var(--cl-font-mono);
        white-space: nowrap;
        padding: 5px 10px;
        border-radius: 16px;
        background: var(--cl-pill-bg);
        border: 1px solid var(--cl-border);
        transition: background 0.15s, color 0.15s, border-color 0.15s;
        flex-shrink: 0;
    }

    .cl-mobile-link:hover {
        color: var(--cl-text) !important;
        background: var(--cl-hover-bg);
        text-decoration: none !important;
    }

    .cl-mobile-link.active {
        color: #fff !important;
        background: var(--cl-green) !important;
        border-color: var(--cl-green) !important;
    }

    /* Hide desktop sidebar */
    .cl-sidebar {
        display: none;
    }

    /* Content fills full width */
    .cl-page-wrapper {
        gap: 0;
    }

    .cl-content {
        padding: 20px 16px 60px;
        max-width: 100%;
    }

    .cl-page-title {
        font-size: 24px;
    }

    /* Stack version aside above content on mobile */
    .cl-version-block {
        flex-direction: column;
        gap: 12px;
        padding: 24px 0;
    }

    .cl-version-aside {
        width: auto;
        padding-right: 0;
    }

    .cl-version-aside-inner {
        position: static;
    }

    .cl-version-title {
        font-size: 15px;
        margin-bottom: 12px;
    }
}

@media (max-width: 480px) {
    .cl-page-title {
        font-size: 21px;
    }

    .cl-page-subtitle {
        font-size: 14px;
        margin-bottom: 16px;
    }

    .cl-version-block {
        padding: 20px 0;
    }

    .cl-version-number {
        font-size: 14px;
    }

    .cl-version-date {
        font-size: 12px;
    }

    .cl-version-title {
        font-size: 14px;
    }

    .cl-change-list li {
        font-size: 13px;
    }
}