/* CourseCloud product updates: public /updates/ pages + admin preview.
   Body markup comes from ccReleaseRenderMarkdown() (assets/f/release_notes_helpers.php). */

:root {
    --rn-ink: #1f1a33;
    --rn-navy: #3c325c;
    --rn-muted: #6b7280;
    --rn-line: #e8e4f2;
    --rn-purple: #7c3aed;
    --rn-purple-soft: #f3e9ff;
    --rn-bg: #fbfaff;
}

/* ---------- Hero ---------- */
.rn-hero {
    background: radial-gradient(1200px 400px at 15% -10%, #e9dcff 0%, transparent 60%),
                radial-gradient(900px 380px at 100% 0%, #e0e7ff 0%, transparent 55%),
                #f9f6ff;
    border-bottom: 1px solid var(--rn-line);
    padding: 56px 0 44px;
}
.rn-hero .rn-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
    color: var(--rn-purple); background: #fff; border: 1px solid var(--rn-line);
    border-radius: 999px; padding: 5px 12px; margin-bottom: 16px;
}
.rn-hero h1 { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; color: var(--rn-navy); letter-spacing: -.02em; margin: 0 0 10px; }
.rn-hero p.rn-lead { font-size: 1.15rem; color: var(--rn-muted); max-width: 640px; margin: 0; line-height: 1.6; }
.rn-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.rn-btn {
    display: inline-flex; align-items: center; gap: 8px; border-radius: 10px; padding: 9px 16px;
    font-weight: 600; font-size: .92rem; text-decoration: none; border: 1px solid var(--rn-line);
    background: #fff; color: var(--rn-navy); transition: border-color .15s, box-shadow .15s;
}
.rn-btn:hover { border-color: #c4b5fd; box-shadow: 0 2px 10px rgba(124,58,237,.10); color: var(--rn-navy); text-decoration: none; }
.rn-btn-primary { background: var(--rn-purple); border-color: var(--rn-purple); color: #fff; }
.rn-btn-primary:hover { color: #fff; background: #6d28d9; }

/* ---------- Filters ---------- */
.rn-filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 28px 0 8px; }
.rn-chip {
    font-size: .85rem; font-weight: 600; padding: 6px 14px; border-radius: 999px; text-decoration: none;
    color: var(--rn-navy); background: #fff; border: 1px solid var(--rn-line);
}
.rn-chip:hover { border-color: #c4b5fd; text-decoration: none; color: var(--rn-navy); }
.rn-chip.is-active { background: var(--rn-navy); border-color: var(--rn-navy); color: #fff; }

/* ---------- Timeline list ---------- */
.rn-list { position: relative; padding: 18px 0 40px; }
.rn-item { display: grid; grid-template-columns: 150px 1fr; gap: 28px; padding: 26px 0; border-bottom: 1px solid var(--rn-line); }
.rn-item:last-child { border-bottom: 0; }
.rn-item-date { color: var(--rn-muted); font-size: .9rem; padding-top: 4px; }
.rn-item-date strong { display: block; color: var(--rn-navy); font-size: .95rem; }
.rn-item h2 { font-size: 1.35rem; font-weight: 700; margin: 8px 0 8px; letter-spacing: -.01em; }
.rn-item h2 a { color: var(--rn-ink); text-decoration: none; }
.rn-item h2 a:hover { color: var(--rn-purple); }
.rn-item p { color: #4b5563; line-height: 1.65; margin: 0 0 12px; max-width: 720px; }
.rn-readmore { font-weight: 600; color: var(--rn-purple); text-decoration: none; font-size: .92rem; }
.rn-readmore:hover { text-decoration: underline; }
.rn-empty { text-align: center; padding: 70px 20px; color: var(--rn-muted); }
.rn-pager { display: flex; justify-content: space-between; padding: 10px 0 50px; }

/* ---------- Badges ---------- */
.rn-badges { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.rn-badge {
    display: inline-flex; align-items: center; gap: 6px; font-size: .74rem; font-weight: 700;
    padding: 3px 10px; border-radius: 999px; background: var(--rn-purple-soft); color: #6d28d9;
}
.rn-badge-release     { background: #ede9fe; color: #5b21b6; }
.rn-badge-feature     { background: #e0f2fe; color: #0369a1; }
.rn-badge-improvement { background: #dcfce7; color: #15803d; }
.rn-badge-fix         { background: #f1f5f9; color: #475569; }
.rn-badge-important   { background: #fef3c7; color: #b45309; }
.rn-badge-version     { background: #fff; color: var(--rn-muted); border: 1px solid var(--rn-line); }
.rn-badge-draft       { background: #fee2e2; color: #b91c1c; }

/* ---------- Release page ---------- */
.rn-article-head { padding: 40px 0 30px; border-bottom: 1px solid var(--rn-line); background: #f9f6ff; }
.rn-crumbs { font-size: .85rem; color: var(--rn-muted); margin-bottom: 18px; }
.rn-crumbs a { color: var(--rn-muted); text-decoration: none; }
.rn-crumbs a:hover { color: var(--rn-purple); }
.rn-article-head h1 { font-size: clamp(1.9rem, 3.6vw, 2.6rem); font-weight: 800; color: var(--rn-navy); letter-spacing: -.02em; margin: 14px 0 12px; line-height: 1.15; }
.rn-article-head .rn-lead { font-size: 1.18rem; line-height: 1.6; color: #4b5563; max-width: 760px; margin: 0; }
.rn-meta { color: var(--rn-muted); font-size: .88rem; margin-top: 16px; display: flex; gap: 16px; flex-wrap: wrap; }

.rn-layout { display: grid; grid-template-columns: minmax(0, 1fr) 240px; gap: 56px; padding: 40px 0 30px; }
.rn-toc { position: sticky; top: 90px; align-self: start; font-size: .88rem; }
.rn-toc h4 { font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--rn-muted); margin: 0 0 10px; font-weight: 700; }
.rn-toc ol { list-style: none; padding: 0; margin: 0; border-left: 2px solid var(--rn-line); }
.rn-toc li a { display: block; padding: 5px 0 5px 14px; color: #4b5563; text-decoration: none; margin-left: -2px; border-left: 2px solid transparent; }
.rn-toc li a:hover { color: var(--rn-purple); border-left-color: var(--rn-purple); }

/* Prose */
.rn-body { color: #2d2a3e; font-size: 1.04rem; line-height: 1.75; max-width: 760px; }
.rn-body h2 { font-size: 1.55rem; font-weight: 750; color: var(--rn-navy); margin: 2.4rem 0 .8rem; letter-spacing: -.01em; scroll-margin-top: 90px; }
.rn-body h2:first-child { margin-top: 0; }
.rn-body h3 { font-size: 1.18rem; font-weight: 700; color: var(--rn-ink); margin: 1.8rem 0 .5rem; }
.rn-body h4 { font-size: 1rem; font-weight: 700; color: var(--rn-ink); margin: 1.4rem 0 .4rem; }
.rn-body p { margin: 0 0 1.05rem; }
.rn-body ul, .rn-body ol { margin: 0 0 1.15rem; padding-left: 1.4rem; }
.rn-body ul { list-style: disc; } .rn-body ol { list-style: decimal; } /* the portal CSS resets lists */
.rn-body ul ul { list-style: circle; margin-bottom: .3rem; }
.rn-body li { margin: .3rem 0; }
.rn-body li::marker { color: var(--rn-purple); }
.rn-body a { color: var(--rn-purple); text-decoration: underline; text-underline-offset: 2px; }
.rn-body code { background: #f4f1fb; border: 1px solid var(--rn-line); border-radius: 5px; padding: 1px 6px; font-size: .9em; }
.rn-body pre { background: #1f1a33; color: #f4f1fb; padding: 16px 18px; border-radius: 10px; overflow-x: auto; }
.rn-body pre code { background: none; border: 0; padding: 0; color: inherit; }
.rn-body hr { border: 0; border-top: 1px solid var(--rn-line); margin: 2.2rem 0; opacity: 1; }
.rn-body blockquote { border-left: 3px solid #c4b5fd; margin: 1.2rem 0; padding: .2rem 0 .2rem 1.1rem; color: #4b5563; }
.rn-body figure { margin: 1.6rem 0; }
.rn-body figure img, .rn-body img { max-width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--rn-line); box-shadow: 0 10px 30px rgba(60,50,92,.10); }
.rn-body figcaption { font-size: .86rem; color: var(--rn-muted); text-align: center; margin-top: .6rem; }

.rn-callout { border-radius: 12px; padding: 16px 18px 6px; margin: 1.4rem 0; border: 1px solid; }
.rn-callout-title { font-weight: 700; display: flex; align-items: center; gap: 9px; margin-bottom: .45rem; }
.rn-callout-note      { background: #f0f9ff; border-color: #bae6fd; } .rn-callout-note .rn-callout-title { color: #0369a1; }
.rn-callout-tip       { background: #f0fdf4; border-color: #bbf7d0; } .rn-callout-tip .rn-callout-title { color: #15803d; }
.rn-callout-action    { background: #faf5ff; border-color: #ddd6fe; } .rn-callout-action .rn-callout-title { color: #6d28d9; }
.rn-callout-important { background: #fffbeb; border-color: #fde68a; } .rn-callout-important .rn-callout-title { color: #b45309; }

.rn-article-foot { border-top: 1px solid var(--rn-line); padding: 26px 0 60px; }
.rn-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.rn-nav a { display: block; border: 1px solid var(--rn-line); border-radius: 12px; padding: 14px 16px; text-decoration: none; color: var(--rn-ink); background: #fff; }
.rn-nav a:hover { border-color: #c4b5fd; box-shadow: 0 2px 12px rgba(124,58,237,.08); }
.rn-nav small { display: block; color: var(--rn-muted); font-size: .78rem; margin-bottom: 3px; }
.rn-nav .rn-nav-older { text-align: right; grid-column: 2; }

.rn-preview-bar { background: #fef3c7; color: #92400e; padding: 10px 0; font-size: .9rem; font-weight: 600; border-bottom: 1px solid #fde68a; }

/* ---------- Search ---------- */
.rn-search { position: relative; display: flex; gap: 8px; align-items: center; max-width: 680px; margin-top: 24px; }
.rn-search > i { position: absolute; left: 16px; color: var(--rn-muted); pointer-events: none; }
.rn-search input { flex: 1; min-width: 0; height: 50px; padding: 0 44px 0 42px; border: 1px solid var(--rn-line); border-radius: 12px; font-size: 1rem;
    background: #fff; color: var(--rn-ink); box-shadow: 0 4px 18px rgba(60,50,92,.06); }
.rn-search input:focus { outline: none; border-color: #c4b5fd; box-shadow: 0 0 0 4px var(--rn-purple-soft); }
.rn-search .rn-search-key { position: absolute; right: 108px; font-size: .75rem; color: var(--rn-muted); background: var(--rn-bg); border: 1px solid var(--rn-line); border-radius: 6px; padding: 1px 7px; }
.rn-search .rn-btn { height: 50px; border-radius: 12px; }
.rn-search-tags { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 12px; font-size: .85rem; color: var(--rn-muted); }
.rn-search-tags a { padding: 3px 11px; border-radius: 999px; background: #fff; border: 1px solid var(--rn-line); color: var(--rn-navy); text-decoration: none; }
.rn-search-tags a:hover { border-color: #c4b5fd; color: var(--rn-purple); }
.rn-results { margin: 28px 0 8px; }
.rn-results-head { font-size: .95rem; color: var(--rn-muted); margin-bottom: 12px; }
.rn-results-head strong { color: var(--rn-ink); }
.rn-results-clear { margin-left: 8px; font-size: .85rem; }
.rn-hit { display: block; padding: 16px 18px; margin-bottom: 10px; background: #fff; border: 1px solid var(--rn-line); border-radius: 12px; text-decoration: none; color: inherit; transition: border-color .15s, box-shadow .15s; }
.rn-hit:hover, .rn-hit:focus-visible { border-color: #c4b5fd; box-shadow: 0 4px 16px rgba(124,58,237,.10); text-decoration: none; color: inherit; }
.rn-hit-release { display: block; font-size: .75rem; letter-spacing: .03em; text-transform: uppercase; color: var(--rn-muted); font-weight: 600; }
.rn-hit-heading { display: block; font-size: 1.05rem; font-weight: 700; color: var(--rn-navy); margin: 4px 0; }
.rn-hit-snippet { display: block; font-size: .92rem; line-height: 1.55; color: #4b5563; }
.rn-hit mark, .rn-body mark.rn-hl { background: #fde68a; color: inherit; padding: 0 1px; border-radius: 3px; }
.rn-find { margin-bottom: 22px; }
.rn-find label { display: block; font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--rn-muted); margin: 0 0 8px; font-weight: 700; }
.rn-find-box { position: relative; }
.rn-find-box i { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); color: var(--rn-muted); font-size: .8rem; }
.rn-find-box input { width: 100%; height: 38px; padding: 0 10px 0 30px; border: 1px solid var(--rn-line); border-radius: 9px; font-size: .88rem; background: #fff; }
.rn-find-box input:focus { outline: none; border-color: #c4b5fd; box-shadow: 0 0 0 3px var(--rn-purple-soft); }
.rn-find-status { font-size: .8rem; color: var(--rn-muted); margin-top: 6px; min-height: 1em; }
.rn-find-all { display: inline-block; font-size: .8rem; margin-top: 4px; color: var(--rn-purple); text-decoration: none; }
.rn-toc li.is-dim a { opacity: .35; }

@media (max-width: 900px) {
    .rn-layout { grid-template-columns: 1fr; gap: 0; }
    /* Narrow screens: the find box above the note, the contents list hidden */
    .rn-toc { position: static; order: -1; margin-top: 24px; }
    .rn-toc h4, .rn-toc ol { display: none; }
}
@media (max-width: 640px) {
    .rn-search { flex-wrap: wrap; }
    .rn-search .rn-search-key { display: none; }
    .rn-search .rn-btn { width: 100%; justify-content: center; }
    .rn-search > i { top: 17px; }
}
@media (max-width: 640px) {
    .rn-item { grid-template-columns: 1fr; gap: 6px; }
    .rn-nav { grid-template-columns: 1fr; }
    .rn-nav .rn-nav-older { grid-column: 1; text-align: left; }
}