/* Quizbot blog (2026-09-26): the public blog on the landing layout. landing.css is a compiled Tailwind build that only
   carries the classes the landing pages use, so the blog styles itself here, scoped to .qb-blog. Palette = the landing
   site's (navy #1E4D7B, blue #4A8FD6, coral, soft blue/peach grounds). Light only, like the rest of the landing site. */
.qb-blog {
    --qb-navy: #1E4D7B;
    --qb-blue: #4A8FD6;
    --qb-blue-deep: #2F6FB3;
    --qb-blue-soft: #E8F2FC;
    --qb-peach: #FFE8E3;
    --qb-coral: #C4492E;
    --qb-ink: #1F2A37;
    --qb-text: #333F4D;
    --qb-muted: #5F6B7A;
    --qb-rule: #E3E9F0;
    --qb-tint: #F8FBFE;
    color: var(--qb-text);
    background: #FFFFFF;
}
.qb-blog *, .qb-blog *::before, .qb-blog *::after { box-sizing: border-box; }
.qb-blog a { color: inherit; text-decoration: none; }
.qb-blog a:focus-visible, .qb-blog button:focus-visible { outline: 2px solid var(--qb-blue); outline-offset: 3px; border-radius: 6px; }
.qb-wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ── hero (list pages) ───────────────────────────────────────────── */
.qb-hero {
    padding: 132px 0 56px;
    background:
        radial-gradient(420px 300px at 8% 30%, rgba(232, 242, 252, .9), transparent 70%),
        radial-gradient(520px 340px at 94% 90%, rgba(255, 232, 227, .75), transparent 70%),
        linear-gradient(180deg, var(--qb-tint) 0%, #FFFFFF 100%);
    text-align: center;
}
.qb-pill {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 7px 16px; border-radius: 999px;
    background: linear-gradient(90deg, var(--qb-blue-soft), var(--qb-peach));
    color: var(--qb-navy); font-size: 14px; font-weight: 500;
}
.qb-pill svg { width: 15px; height: 15px; color: #E86F52; }
.qb-hero h1 {
    margin: 18px auto 14px; max-width: 18ch;
    color: var(--qb-navy); font-size: clamp(32px, 4.6vw, 52px); line-height: 1.1; font-weight: 600; letter-spacing: -0.02em;
    text-wrap: balance;
}
.qb-hero p { margin: 0 auto; max-width: 62ch; color: var(--qb-muted); font-size: clamp(16px, 1.6vw, 19px); line-height: 1.6; text-wrap: pretty; }
.qb-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 26px; }
.qb-chip {
    padding: 7px 14px; border-radius: 999px; border: 1px solid var(--qb-rule); background: #FFFFFF;
    color: var(--qb-navy); font-size: 14px; transition: border-color .15s ease, color .15s ease;
}
.qb-chip:hover { border-color: var(--qb-blue); color: var(--qb-blue-deep); }
.qb-chip[aria-current="page"] { background: var(--qb-navy); border-color: var(--qb-navy); color: #FFFFFF; }

/* ── card grid ───────────────────────────────────────────────────── */
.qb-list { padding: 8px 0 88px; }
.qb-grid { display: grid; gap: 28px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.qb-card {
    position: relative; display: flex; flex-direction: column; overflow: hidden;
    background: #FFFFFF; border: 1px solid var(--qb-rule); border-radius: 18px;
    box-shadow: 0 1px 2px rgba(30, 77, 123, .06);
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.qb-card:hover { transform: translateY(-3px); border-color: #CFDCEA; box-shadow: 0 16px 32px -18px rgba(30, 77, 123, .35); }
.qb-card:focus-within { outline: 2px solid var(--qb-blue); outline-offset: 3px; }
.qb-card-media { display: block; aspect-ratio: 16 / 9; background: var(--qb-blue-soft); overflow: hidden; }
.qb-card-media img { display: block; width: 100%; height: 100%; object-fit: cover; }
/* no feature image: dotted paper in one of three tints (picked from the category), with the blog's book mark */
.qb-ph {
    display: flex; align-items: center; justify-content: center; width: 100%; height: 100%;
    background:
        radial-gradient(rgba(30, 77, 123, .10) 1.2px, transparent 1.4px) 0 0 / 16px 16px,
        linear-gradient(135deg, var(--qb-blue-soft) 0%, #F4F0FA 55%, var(--qb-peach) 100%);
    color: rgba(30, 77, 123, .38);
}
.qb-ph-1 { background: radial-gradient(rgba(30, 77, 123, .10) 1.2px, transparent 1.4px) 0 0 / 16px 16px, linear-gradient(135deg, #E3F4EC 0%, #EAF3FB 100%); }
.qb-ph-2 { background: radial-gradient(rgba(30, 77, 123, .10) 1.2px, transparent 1.4px) 0 0 / 16px 16px, linear-gradient(135deg, var(--qb-peach) 0%, #FDF3E1 100%); }
.qb-ph svg { width: 54px; height: 54px; }
.qb-card-body { display: flex; flex-direction: column; flex: 1; padding: 20px 22px 22px; }
.qb-eyebrow { margin: 0 0 8px; color: var(--qb-coral); font-size: 12px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.qb-card-title { margin: 0 0 10px; color: var(--qb-ink); font-size: 20px; line-height: 1.3; font-weight: 600; letter-spacing: -0.01em; text-wrap: balance; }
.qb-card-title a::after { content: ""; position: absolute; inset: 0; }
.qb-card-title a:focus-visible { outline: none; }
.qb-card-excerpt {
    margin: 0 0 16px; color: var(--qb-muted); font-size: 15px; line-height: 1.6;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.qb-meta { margin: auto 0 0; color: var(--qb-muted); font-size: 13.5px; font-variant-numeric: tabular-nums; }
.qb-meta .qb-dot { margin: 0 6px; color: #B6C0CC; }

/* one or two articles: wide cards, image beside the text, instead of a sparse three-column row */
.qb-grid--few { grid-template-columns: minmax(0, 1fr); max-width: 920px; margin: 0 auto; }
.qb-grid--few .qb-card { flex-direction: row; }
.qb-grid--few .qb-card-media { flex: 0 0 44%; aspect-ratio: auto; min-height: 230px; }
.qb-grid--few .qb-card-body { padding: 26px 28px; }
.qb-grid--few .qb-card-title { font-size: 24px; }

.qb-pager { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 44px; color: var(--qb-muted); font-size: 14px; }
.qb-pager a { display: inline-flex; align-items: center; gap: 6px; padding: 10px 16px; border: 1px solid var(--qb-rule); border-radius: 12px; color: var(--qb-navy); font-weight: 500; }
.qb-pager a:hover { border-color: var(--qb-blue); color: var(--qb-blue-deep); }
.qb-pager svg { width: 16px; height: 16px; }

.qb-empty { max-width: 620px; margin: 0 auto; padding: 44px 32px; text-align: center; border: 1px dashed #C9D6E4; border-radius: 20px; background: var(--qb-tint); }
.qb-empty h2 { margin: 0 0 8px; color: var(--qb-navy); font-size: 22px; font-weight: 600; }
.qb-empty p { margin: 0 0 22px; color: var(--qb-muted); }

.qb-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 22px; border: 0; border-radius: 12px;
    background: linear-gradient(90deg, #4A8FD6, #5BA3E0); color: #FFFFFF !important; font-size: 16px; font-weight: 500; cursor: pointer;
    transition: box-shadow .15s ease, transform .15s ease;
}
.qb-btn:hover { transform: translateY(-1px); box-shadow: 0 10px 22px -10px rgba(74, 143, 214, .8); }
.qb-btn svg { width: 18px; height: 18px; }
.qb-link { color: var(--qb-blue-deep) !important; font-weight: 500; text-decoration: underline !important; text-underline-offset: 3px; }

/* ── single post ─────────────────────────────────────────────────── */
.qb-post { padding: 120px 0 80px; }
.qb-col { max-width: 740px; margin: 0 auto; padding: 0 24px; }
.qb-draft { margin: 0 0 22px; padding: 10px 14px; border-radius: 10px; background: #FFF6D6; color: #6B5200; font-size: 14px; }
.qb-crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 0 0 18px; color: var(--qb-muted); font-size: 14px; }
.qb-crumbs a { color: var(--qb-blue-deep); }
.qb-crumbs a:hover { text-decoration: underline; text-underline-offset: 3px; }
.qb-crumbs span[aria-hidden] { color: #B6C0CC; }
.qb-post h1 { margin: 0 0 16px; color: var(--qb-navy); font-size: clamp(30px, 4.4vw, 46px); line-height: 1.12; font-weight: 600; letter-spacing: -0.02em; text-wrap: balance; }
.qb-dek { margin: 0 0 20px; color: var(--qb-muted); font-size: clamp(17px, 1.8vw, 20px); line-height: 1.55; text-wrap: pretty; }
.qb-byline { color: var(--qb-ink); font-weight: 600; }
.qb-post-hero { max-width: 1000px; margin: 34px auto 8px; padding: 0 24px; }
.qb-post-hero img { display: block; width: 100%; max-height: 540px; object-fit: cover; border-radius: 20px; }

/* article body — Tailwind preflight strips list bullets and heading sizes, so they are put back here */
.qb-prose { margin-top: 34px; color: #2B3440; font-size: 18px; line-height: 1.75; overflow-wrap: break-word; }
.qb-prose > :first-child { margin-top: 0; }
.qb-prose p { margin: 0 0 1.2em; }
.qb-prose h2 { margin: 2.1em 0 .6em; color: var(--qb-navy); font-size: 27px; line-height: 1.25; font-weight: 600; letter-spacing: -0.01em; text-wrap: balance; }
.qb-prose h3 { margin: 1.8em 0 .5em; color: var(--qb-ink); font-size: 21px; line-height: 1.3; font-weight: 600; }
.qb-prose h4 { margin: 1.6em 0 .4em; color: var(--qb-ink); font-size: 18px; font-weight: 600; }
.qb-prose a { color: var(--qb-blue-deep); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.qb-prose a:hover { text-decoration-thickness: 2px; }
.qb-prose strong, .qb-prose b { color: var(--qb-ink); font-weight: 600; }
.qb-prose ul, .qb-prose ol { margin: 0 0 1.3em; padding-left: 1.4em; }
.qb-prose ul { list-style: disc; }
.qb-prose ol { list-style: decimal; }
.qb-prose li { margin: .45em 0; padding-left: .2em; }
.qb-prose li::marker { color: var(--qb-blue); }
.qb-prose ol > li::marker { font-weight: 600; }
.qb-prose blockquote { margin: 1.6em 0; padding: 16px 22px; border-left: 3px solid var(--qb-blue); border-radius: 0 12px 12px 0; background: var(--qb-tint); color: var(--qb-ink); }
.qb-prose blockquote p:last-child { margin-bottom: 0; }
.qb-prose img { max-width: 100%; height: auto; border-radius: 14px; }
.qb-prose figure { margin: 1.8em 0; }
.qb-prose figcaption { margin-top: 8px; color: var(--qb-muted); font-size: 14px; text-align: center; }
.qb-prose hr { margin: 2.4em 0; border: 0; border-top: 1px solid var(--qb-rule); }
.qb-prose code { padding: .12em .38em; border-radius: 6px; background: #F1F4F8; color: var(--qb-ink); font-size: .88em; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.qb-prose pre { margin: 1.5em 0; padding: 16px 18px; border-radius: 12px; background: #16263A; color: #E6EDF5; overflow-x: auto; font-size: 15px; line-height: 1.6; }
.qb-prose pre code { padding: 0; background: none; color: inherit; }
.qb-table-wrap, .qb-prose table { margin: 1.6em 0; }
.qb-prose table { width: 100%; border-collapse: collapse; font-size: 16px; line-height: 1.5; }
.qb-prose th, .qb-prose td { padding: 10px 12px; border-bottom: 1px solid var(--qb-rule); text-align: left; vertical-align: top; }
.qb-prose th { background: #F3F7FB; color: var(--qb-navy); font-weight: 600; }

.qb-post-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--qb-rule); }
.qb-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.qb-tags a { padding: 5px 12px; border-radius: 999px; background: #F1F4F8; color: var(--qb-navy); font-size: 13.5px; }
.qb-tags a:hover { background: var(--qb-blue-soft); }
.qb-share { display: flex; align-items: center; gap: 8px; color: var(--qb-muted); font-size: 13.5px; }
.qb-share a, .qb-share button {
    display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; padding: 0;
    border: 1px solid var(--qb-rule); border-radius: 10px; background: #FFFFFF; color: var(--qb-navy); cursor: pointer;
}
.qb-share a:hover, .qb-share button:hover { border-color: var(--qb-blue); color: var(--qb-blue-deep); }
.qb-share svg { width: 17px; height: 17px; }
.qb-share .qb-copied { color: #1C7A62; font-weight: 500; }

.qb-cta {
    display: flex; align-items: center; justify-content: space-between; gap: 24px; margin: 48px 0 0; padding: 28px 30px; border-radius: 20px;
    background:
        radial-gradient(320px 200px at 100% 100%, rgba(255, 232, 227, .9), transparent 70%),
        linear-gradient(135deg, var(--qb-blue-soft), #F7F9FD);
}
.qb-cta h2 { margin: 0 0 6px; color: var(--qb-navy); font-size: 22px; line-height: 1.25; font-weight: 600; }
.qb-cta p { margin: 0; color: var(--qb-muted); font-size: 15.5px; line-height: 1.55; }
.qb-cta .qb-btn { flex: 0 0 auto; }

.qb-prevnext { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 40px; }
.qb-prevnext a { display: block; padding: 16px 18px; border: 1px solid var(--qb-rule); border-radius: 14px; }
.qb-prevnext a:hover { border-color: var(--qb-blue); }
.qb-prevnext .qb-next { grid-column: 2; text-align: right; }
.qb-prevnext small { display: block; margin-bottom: 4px; color: var(--qb-muted); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.qb-prevnext strong { color: var(--qb-ink); font-weight: 600; line-height: 1.35; }

.qb-related { margin-top: 72px; padding: 56px 0 0; border-top: 1px solid var(--qb-rule); }
.qb-related > .qb-wrap > h2 { margin: 0 0 26px; color: var(--qb-navy); font-size: 26px; font-weight: 600; text-align: center; }

@media (max-width: 1024px) {
    .qb-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .qb-grid--few { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 680px) {
    .qb-wrap, .qb-col, .qb-post-hero { padding: 0 16px; }
    .qb-hero { padding: 108px 0 40px; }
    .qb-post { padding-top: 100px; }
    .qb-grid { grid-template-columns: minmax(0, 1fr); gap: 20px; }
    .qb-grid--few .qb-card { flex-direction: column; }
    .qb-grid--few .qb-card-media { flex: none; aspect-ratio: 16 / 9; min-height: 0; }
    .qb-grid--few .qb-card-body { padding: 20px 22px 22px; }
    .qb-grid--few .qb-card-title { font-size: 20px; }
    .qb-prose { font-size: 17px; }
    .qb-prose table { display: block; overflow-x: auto; font-size: 15px; } /* wide tables scroll inside the column */
    .qb-prose h2 { font-size: 23px; }
    .qb-post-hero img { border-radius: 14px; }
    .qb-cta { flex-direction: column; align-items: flex-start; padding: 24px 22px; }
    .qb-cta .qb-btn { width: 100%; }
    .qb-prevnext { grid-template-columns: minmax(0, 1fr); }
    .qb-prevnext .qb-next { grid-column: 1; }
}
@media (prefers-reduced-motion: reduce) {
    .qb-card, .qb-btn, .qb-chip { transition: none; }
    .qb-card:hover, .qb-btn:hover { transform: none; }
}