/* =========================================================================
   Tenantivo Help Center / Blog — Design System
   Used by:
     - Views/Home/Help/Blog.cshtml         (article listing)
     - Views/Home/Help/Blog/*.cshtml       (individual articles)
   Depends on tokens defined in Public.css (--tv-* variables).
   ========================================================================= */

/* ---------------------------------------------------------------------------
   Accent system
   -------------------------------------------------------------------------
   Drop the modifier `.tv-accent-{key}` on any element that contains
   .tv-blog-hero, .tv-blog-card, .tv-section-card, etc.
   It rewires three CSS vars used throughout the file.
   --------------------------------------------------------------------------- */
.tv-blog,
.tv-accent-brand {
    --tv-blog-grad:       var(--tv-grad-brand);
    --tv-blog-strong:     var(--tv-primary-700);
    --tv-blog-tint:       var(--tv-primary-50);
    --tv-blog-tint-line:  var(--tv-primary-100);
    --tv-blog-shadow:     var(--tv-shadow-brand);
}
.tv-accent-mint {
    --tv-blog-grad:       linear-gradient(135deg, #059669 0%, #34d399 100%);
    --tv-blog-strong:     #047857;
    --tv-blog-tint:       #ecfdf5;
    --tv-blog-tint-line:  #a7f3d0;
    --tv-blog-shadow:     0 10px 24px rgba(16, 185, 129, 0.35);
}
.tv-accent-amber {
    --tv-blog-grad:       linear-gradient(135deg, #d97706 0%, #fbbf24 100%);
    --tv-blog-strong:     #b45309;
    --tv-blog-tint:       #fffbeb;
    --tv-blog-tint-line:  #fde68a;
    --tv-blog-shadow:     0 10px 24px rgba(245, 158, 11, 0.35);
}
.tv-accent-rose {
    --tv-blog-grad:       linear-gradient(135deg, #e11d48 0%, #fb7185 100%);
    --tv-blog-strong:     #be123c;
    --tv-blog-tint:       #fff1f2;
    --tv-blog-tint-line:  #fecdd3;
    --tv-blog-shadow:     0 10px 24px rgba(244, 63, 94, 0.35);
}
.tv-accent-violet {
    --tv-blog-grad:       linear-gradient(135deg, #7c3aed 0%, #a78bfa 100%);
    --tv-blog-strong:     #6d28d9;
    --tv-blog-tint:       #f5f3ff;
    --tv-blog-tint-line:  #ddd6fe;
    --tv-blog-shadow:     0 10px 24px rgba(139, 92, 246, 0.35);
}
.tv-accent-cyan {
    --tv-blog-grad:       linear-gradient(135deg, #0891b2 0%, #22d3ee 100%);
    --tv-blog-strong:     #0e7490;
    --tv-blog-tint:       #ecfeff;
    --tv-blog-tint-line:  #a5f3fc;
    --tv-blog-shadow:     0 10px 24px rgba(34, 211, 238, 0.35);
}
.tv-accent-slate {
    --tv-blog-grad:       linear-gradient(135deg, #334155 0%, #64748b 100%);
    --tv-blog-strong:     #1e293b;
    --tv-blog-tint:       #f1f5f9;
    --tv-blog-tint-line:  #cbd5e1;
    --tv-blog-shadow:     0 10px 24px rgba(71, 85, 105, 0.35);
}

/* ============================================================
   HERO  —  used by both list and article pages
   ============================================================ */
.tv-blog-hero {
    position: relative;
    overflow: hidden;
    color: #fff;
    background: var(--tv-grad-hero);
    padding: 4rem 0 6rem;
}
.tv-blog-hero::before {
    content: "";
    position: absolute; inset: 0;
    background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.09) 1px, transparent 0);
    background-size: 28px 28px;
    mask-image: radial-gradient(ellipse at top, black 35%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at top, black 35%, transparent 75%);
    pointer-events: none;
}
/* Soft fade into page body */
.tv-blog-hero::after {
    content: "";
    position: absolute; left: 0; right: 0; bottom: 0; height: 120px;
    background: linear-gradient(to bottom, transparent, var(--tv-soft-bg));
    pointer-events: none;
}
.tv-blog-hero > .container { position: relative; z-index: 2; }

.tv-blog-hero-breadcrumb {
    margin: 0 0 1.5rem;
    padding: 0;
    list-style: none;
    display: flex; flex-wrap: wrap;
    gap: 0.25rem 0.55rem;
    font-size: 0.85rem;
    color: rgba(226, 232, 240, 0.75);
}
.tv-blog-hero-breadcrumb a {
    color: rgba(226, 232, 240, 0.9);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease, color 0.2s ease;
}
.tv-blog-hero-breadcrumb a:hover {
    color: #fff;
    border-bottom-color: rgba(255, 255, 255, 0.45);
}
.tv-blog-hero-breadcrumb .sep { color: rgba(255, 255, 255, 0.35); }
.tv-blog-hero-breadcrumb .current { color: #fff; font-weight: 500; }

.tv-blog-hero-pill {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.22);
    backdrop-filter: blur(6px);
    color: #fff;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}
.tv-blog-hero-pill .tv-blog-hero-pill-icon {
    width: 22px; height: 22px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 999px;
    background: var(--tv-blog-grad);
    color: #fff;
    font-size: 0.7rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
}

.tv-blog-hero-title {
    color: #fff;
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.08;
    font-size: clamp(2rem, 4.4vw, 3.4rem);
    margin: 0 0 1rem;
    max-width: 900px;
    animation: tv-rise 0.7s ease both;
}
.tv-blog-hero-lead {
    color: rgba(226, 232, 240, 0.92);
    font-size: clamp(1.05rem, 1.4vw, 1.2rem);
    line-height: 1.6;
    max-width: 760px;
    margin: 0 0 1.5rem;
    animation: tv-rise 0.85s ease both;
}
/* Public.css sets .public-main p { color: #334155 } — must beat that on dark hero */
.public-main .tv-blog-hero .tv-blog-hero-lead {
    color: rgba(226, 232, 240, 0.92);
}

/* Meta row under the title (date · read · author) */
.tv-blog-hero-meta {
    display: flex; flex-wrap: wrap;
    gap: 0.5rem 1.25rem;
    color: rgba(226, 232, 240, 0.78);
    font-size: 0.92rem;
    align-items: center;
}
.tv-blog-hero-meta .meta-item {
    display: inline-flex; align-items: center; gap: 0.5rem;
}
.tv-blog-hero-meta .meta-item i { color: rgba(255, 255, 255, 0.55); }
.tv-blog-hero-meta .meta-author-avatar {
    width: 28px; height: 28px;
    border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--tv-blog-grad);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    box-shadow: var(--tv-blog-shadow);
}

/* ============================================================
   LISTING PAGE
   ============================================================ */
.tv-blog-listing {
    padding: 0 0 4.5rem;
    background: var(--tv-soft-bg);
}

/* Pull the listing grid up so it overlaps the hero fade */
.tv-blog-listing-grid {
    margin-top: -3.5rem;
    position: relative;
    z-index: 3;
}

/* Filters / tag strip (placeholder for future) */
.tv-blog-toolbar {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
    margin: 0 0 1.5rem;
}
.tv-blog-chip {
    background: #fff;
    border: 1px solid var(--tv-line);
    color: var(--tv-ink-2);
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}
.tv-blog-chip:hover {
    color: var(--tv-primary-700);
    border-color: var(--tv-primary-200);
    background: var(--tv-primary-50);
    transform: translateY(-1px);
}
.tv-blog-chip.is-active {
    color: #fff;
    background: var(--tv-grad-brand);
    border-color: transparent;
    box-shadow: var(--tv-shadow-brand);
}

/* Article card */
.tv-blog-card {
    position: relative;
    display: flex; flex-direction: column;
    background: #fff;
    border: 1px solid var(--tv-line);
    border-radius: var(--tv-radius-lg);
    padding: 1.5rem 1.5rem 1.75rem;
    height: 100%;
    box-shadow: var(--tv-shadow-xs);
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.tv-blog-card::before {
    content: "";
    position: absolute; left: 0; top: 0; right: 0; height: 4px;
    background: var(--tv-blog-grad);
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}
.tv-blog-card:hover {
    transform: translateY(-6px);
    border-color: var(--tv-blog-tint-line);
    box-shadow: var(--tv-shadow);
}
.tv-blog-card:hover::before { transform: translateY(0); }

.tv-blog-card-icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    display: inline-flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: 1.2rem;
    background: var(--tv-blog-grad);
    box-shadow: var(--tv-blog-shadow);
    margin-bottom: 1rem;
}

.tv-blog-card-meta {
    display: flex; flex-wrap: wrap;
    gap: 0.4rem 1rem;
    color: var(--tv-muted);
    font-size: 0.8rem;
    margin-bottom: 0.6rem;
}
.tv-blog-card-meta .pill {
    display: inline-flex; align-items: center;
    background: var(--tv-blog-tint);
    color: var(--tv-blog-strong);
    border: 1px solid var(--tv-blog-tint-line);
    padding: 0.18rem 0.55rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}
.tv-blog-card-meta .meta-line { display: inline-flex; align-items: center; gap: 0.35rem; }

.tv-blog-card-title {
    font-size: 1.2rem;
    font-weight: 800;
    line-height: 1.3;
    margin: 0 0 0.6rem;
    color: var(--tv-ink);
    letter-spacing: -0.01em;
}
.tv-blog-card-title a {
    color: inherit;
    text-decoration: none;
}
.tv-blog-card-title a::after {
    /* full-card click target */
    content: "";
    position: absolute; inset: 0;
    z-index: 1;
}

.tv-blog-card-excerpt {
    color: #475569;
    line-height: 1.6;
    font-size: 0.95rem;
    margin: 0 0 1rem;
    flex: 1 1 auto;
}

.tv-blog-card-cta {
    display: inline-flex; align-items: center; gap: 0.4rem;
    color: var(--tv-blog-strong);
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    margin-top: auto;
    position: relative;
    z-index: 2;
}
.tv-blog-card-cta i { transition: transform 0.2s ease; }
.tv-blog-card:hover .tv-blog-card-cta i { transform: translateX(4px); }

/* Featured first card — spans wider on lg+ */
@media (min-width: 992px) {
    .tv-blog-card-featured {
        padding: 2rem 2rem 2.25rem;
    }
    .tv-blog-card-featured .tv-blog-card-icon {
        width: 64px; height: 64px;
        font-size: 1.5rem;
        border-radius: 18px;
    }
    .tv-blog-card-featured .tv-blog-card-title { font-size: 1.65rem; }
    .tv-blog-card-featured .tv-blog-card-excerpt { font-size: 1.02rem; }
}

/* Empty state */
.tv-blog-empty {
    background: #fff;
    border: 1px dashed var(--tv-line);
    border-radius: var(--tv-radius-lg);
    text-align: center;
    padding: 3.5rem 1.5rem;
    color: var(--tv-muted);
}
.tv-blog-empty i { color: var(--tv-primary-300); margin-bottom: 0.75rem; }

/* ============================================================
   ARTICLE PAGE
   ============================================================ */
.tv-blog-article { padding: 0 0 5rem; }

/* Two-column layout pulled up over the hero */
.tv-blog-article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
    margin-top: -4rem;
    position: relative;
    z-index: 3;
}
@media (min-width: 992px) {
    .tv-blog-article-layout {
        grid-template-columns: minmax(0, 1fr) 320px;
        gap: 2.5rem;
        align-items: start;
    }
}

/* ---- Main column ---- */
.tv-blog-content {
    background: #fff;
    border: 1px solid var(--tv-line);
    border-radius: var(--tv-radius-lg);
    box-shadow: var(--tv-shadow-sm);
    padding: 2rem 1.75rem;
}
@media (min-width: 768px) {
    .tv-blog-content { padding: 2.75rem 2.5rem; }
}
@media (min-width: 1200px) {
    .tv-blog-content { padding: 3rem 3.25rem; }
}

/* Intro / lede above the first section */
.tv-blog-lede {
    font-size: clamp(1.05rem, 1.3vw, 1.18rem);
    line-height: 1.65;
    color: #334155;
    margin: 0 0 2rem;
    padding-bottom: 1.75rem;
    border-bottom: 1px solid var(--tv-line);
}
.tv-blog-lede::first-letter {
    float: left;
    font-family: 'Georgia', 'Times New Roman', serif;
    font-size: 3.4rem;
    line-height: 0.95;
    font-weight: 800;
    color: var(--tv-blog-strong);
    margin: 0.25rem 0.6rem 0 0;
    background: var(--tv-blog-grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Numbered section card — the core building block */
.tv-section-card {
    position: relative;
    padding: 1.4rem 1.6rem 1.6rem;
    border: 1px solid var(--tv-line);
    border-radius: var(--tv-radius);
    background: #fff;
    margin-bottom: 1.25rem;
    transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.tv-section-card:hover {
    border-color: var(--tv-blog-tint-line);
    transform: translateY(-2px);
    box-shadow: var(--tv-shadow-xs);
}
.tv-section-card-header {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 0.85rem;
}
.tv-section-card-num {
    flex: 0 0 auto;
    width: 44px; height: 44px;
    border-radius: 12px;
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--tv-blog-grad);
    color: #fff;
    font-weight: 800;
    font-size: 1rem;
    letter-spacing: 0.02em;
    box-shadow: var(--tv-blog-shadow);
}
.tv-section-card-title {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--tv-ink);
    margin: 0.4rem 0 0;
    letter-spacing: -0.01em;
    line-height: 1.3;
    scroll-margin-top: 90px;
}
.tv-section-card-body {
    color: #334155;
    line-height: 1.7;
    font-size: 1rem;
}
.tv-section-card-body > p { margin-bottom: 0.85rem; }
.tv-section-card-body > p:last-child { margin-bottom: 0; }
.tv-section-card-body strong {
    color: var(--tv-ink);
    font-weight: 700;
}

/* Pull-quote / callout */
.tv-blog-callout {
    display: flex; gap: 1rem;
    align-items: flex-start;
    margin: 1.25rem 0;
    padding: 1.1rem 1.25rem;
    border-radius: var(--tv-radius);
    background: var(--tv-blog-tint);
    border: 1px solid var(--tv-blog-tint-line);
    border-left: 4px solid transparent;
    border-image: var(--tv-blog-grad) 1;
    border-image-slice: 0 0 0 1;
    color: #1e293b;
    line-height: 1.6;
    font-size: 0.98rem;
}
.tv-blog-callout-icon {
    flex: 0 0 auto;
    width: 36px; height: 36px;
    border-radius: 10px;
    background: var(--tv-blog-grad);
    color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    box-shadow: var(--tv-blog-shadow);
}
.tv-blog-callout strong { color: var(--tv-blog-strong); }

/* Article footer / nav */
.tv-blog-footer-nav {
    display: flex; flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2rem;
    padding-top: 1.75rem;
    border-top: 1px solid var(--tv-line);
}
.tv-blog-share {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
    margin-left: auto;
    align-items: center;
}
.tv-blog-share-label {
    font-size: 0.82rem;
    color: var(--tv-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-right: 0.25rem;
}
.tv-blog-share-btn {
    width: 40px; height: 40px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: #fff;
    border: 1px solid var(--tv-line);
    color: var(--tv-ink-2);
    text-decoration: none;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}
.tv-blog-share-btn:hover {
    color: #fff;
    background: var(--tv-blog-grad);
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--tv-blog-shadow);
}

/* ---- Sidebar ---- */
.tv-blog-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
@media (min-width: 992px) {
    .tv-blog-sidebar {
        position: sticky;
        top: 92px; /* sticky nav offset */
    }
}

.tv-blog-side-card {
    background: #fff;
    border: 1px solid var(--tv-line);
    border-radius: var(--tv-radius);
    padding: 1.25rem 1.25rem;
    box-shadow: var(--tv-shadow-xs);
}
.tv-blog-side-card-label {
    display: block;
    color: var(--tv-blog-strong);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 0.85rem;
}

/* TOC */
.tv-blog-toc {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: tv-toc;
}
.tv-blog-toc li {
    counter-increment: tv-toc;
}
.tv-blog-toc li + li { margin-top: 0.3rem; }
.tv-blog-toc a {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    padding: 0.55rem 0.6rem;
    border-radius: 10px;
    color: var(--tv-ink-2);
    text-decoration: none;
    font-weight: 500;
    line-height: 1.4;
    font-size: 0.92rem;
    transition: background 0.2s ease, color 0.2s ease;
}
.tv-blog-toc a::before {
    content: counter(tv-toc, decimal-leading-zero);
    flex: 0 0 auto;
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: 0.72rem;
    color: var(--tv-blog-strong);
    background: var(--tv-blog-tint);
    border: 1px solid var(--tv-blog-tint-line);
    border-radius: 6px;
    padding: 0.1rem 0.35rem;
    line-height: 1.3;
    letter-spacing: 0.05em;
    margin-top: 0.1rem;
}
.tv-blog-toc a:hover,
.tv-blog-toc a.is-active {
    background: var(--tv-blog-tint);
    color: var(--tv-blog-strong);
}
.tv-blog-toc a.is-active {
    box-shadow: inset 3px 0 0 0 var(--tv-blog-strong);
    font-weight: 600;
}

/* CTA card */
.tv-blog-side-cta {
    position: relative;
    overflow: hidden;
    color: #fff;
    background: var(--tv-grad-hero);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--tv-radius);
    padding: 1.5rem 1.4rem;
    box-shadow: var(--tv-shadow);
}
.tv-blog-side-cta::before {
    content: "";
    position: absolute; inset: 0;
    background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.09) 1px, transparent 0);
    background-size: 22px 22px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
    pointer-events: none;
}
.tv-blog-side-cta > * { position: relative; z-index: 1; }
.tv-blog-side-cta-eyebrow {
    display: inline-block;
    color: #bfdbfe;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: 0.6rem;
}
.tv-blog-side-cta-title {
    color: #fff;
    font-size: 1.15rem;
    font-weight: 800;
    margin: 0 0 0.5rem;
    line-height: 1.3;
    letter-spacing: -0.01em;
}
.tv-blog-side-cta-text {
    color: rgba(226, 232, 240, 0.85);
    font-size: 0.92rem;
    line-height: 1.55;
    margin: 0 0 1rem;
}
/* Same .public-main p override — CTA panel uses a dark navy background */
.public-main .tv-blog-side-cta .tv-blog-side-cta-text {
    color: rgba(226, 232, 240, 0.85);
}
.tv-blog-side-cta .btn {
    width: 100%;
    background: #fff !important;
    color: var(--tv-primary-700) !important;
    border: none !important;
    font-weight: 700;
    border-radius: 12px;
    padding: 0.7rem 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.tv-blog-side-cta .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 26px rgba(255, 255, 255, 0.15);
}

/* ============================================================
   RELATED ARTICLES STRIP
   ============================================================ */
.tv-blog-related {
    margin-top: 3.5rem;
}
.tv-blog-related-head {
    display: flex; flex-wrap: wrap;
    justify-content: space-between; align-items: flex-end;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.tv-blog-related-head h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--tv-ink);
    letter-spacing: -0.01em;
}
.tv-blog-related-head p {
    margin: 0;
    color: var(--tv-muted);
    font-size: 0.95rem;
}

/* ============================================================
   Responsive tweaks
   ============================================================ */
@media (max-width: 768px) {
    .tv-blog-hero { padding: 3rem 0 4.5rem; }
    .tv-blog-content { padding: 1.5rem 1.25rem; }
    .tv-section-card { padding: 1.2rem 1.15rem 1.35rem; }
    .tv-section-card-num { width: 38px; height: 38px; font-size: 0.9rem; }
    .tv-blog-lede::first-letter { font-size: 2.8rem; }
    .tv-blog-share { margin-left: 0; }
}