/* =====================================================================
   help.css — Help Center: hub, category archive, and single article
   ===================================================================== */

/* ================================================================== */
/* SHARED                                                               */
/* ================================================================== */

.hc-breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    font-size: 0.8125rem;
    color: rgba(255,255,255,0.5);
    margin-bottom: 28px;
}

.hc-breadcrumb a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    transition: color 0.15s;
}

.hc-breadcrumb a:hover { color: rgba(255,255,255,0.85); }

.hc-breadcrumb span { color: rgba(255,255,255,0.3); }

.hc-breadcrumb--light { color: var(--text-3,#6B7280); }

.hc-breadcrumb--light a { color: var(--text-3,#6B7280); }

.hc-breadcrumb--light a:hover { color: var(--text,#0A0F1E); }

.hc-breadcrumb--light span { color: var(--border-dk,#C3CFE0); }

/* ================================================================== */
/* HELP CENTER HUB                                                      */
/* ================================================================== */

.hc-shell {
    background: var(--cream,#F7F9FC);
}

/* ── Hero ── */

.hc-hero {
    padding: 72px 0 64px;
    background: var(--navy,#0C1A35);
    position: relative;
    overflow: hidden;
    color: #fff;
}

.hc-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 70% at 88% -10%, rgba(26,86,219,0.22) 0%, transparent 60%),
        radial-gradient(ellipse 40% 50% at 5% 110%, rgba(5,150,105,0.12) 0%, transparent 55%);
    pointer-events: none;
}

.hc-hero__inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0,1.2fr) minmax(260px,0.8fr);
    gap: 48px;
    align-items: start;
}

.hc-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.8);
    margin-bottom: 20px;
}

.hc-eyebrow--blue {
    background: var(--blue-l,#EBF2FF);
    border-color: rgba(26,86,219,0.2);
    color: var(--blue,#1A56DB);
}

.hc-eyebrow--mint {
    background: var(--mint-l,#D1FAE5);
    border-color: rgba(5,150,105,0.2);
    color: var(--mint,#059669);
}

.hc-hero h1 {
    font-size: clamp(2rem,4.5vw,3.2rem);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: #fff;
    margin: 0 0 14px;
}

.hc-hero__sub {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.7;
    max-width: 52ch;
    margin: 0 0 32px;
}

/* ── Search ── */

.hc-search {
    display: grid;
    gap: 12px;
    max-width: 600px;
}

.hc-search__bar {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #fff;
    border-radius: var(--r-xl,24px);
    padding: 10px 10px 10px 18px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.22);
}

.hc-search__bar > i {
    color: var(--text-3,#9CA3AF);
    font-size: 0.9rem;
    flex-shrink: 0;
}

.hc-search__bar input {
    flex: 1;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--text,#0A0F1E);
    font: inherit;
    font-size: 0.97rem;
    min-width: 0;
}

.hc-search__bar input::placeholder { color: var(--text-3,#9CA3AF); }

.hc-search__clear {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 0;
    border-radius: 50%;
    background: var(--cream-2,#EDF1F7);
    color: var(--text-3);
    cursor: pointer;
    font-size: 0.82rem;
    flex-shrink: 0;
    transition: background 0.15s, color 0.15s;
}

.hc-search__clear:hover {
    background: var(--blue-l,#EBF2FF);
    color: var(--blue,#1A56DB);
}

/* ── Filter chips ── */

.hc-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.hc-chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 14px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,0.18);
    background: rgba(255,255,255,0.07);
    color: rgba(255,255,255,0.72);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.hc-chip:hover {
    background: rgba(255,255,255,0.14);
    color: #fff;
    border-color: rgba(255,255,255,0.3);
}

.hc-chip.is-active {
    background: #fff;
    color: var(--blue,#1A56DB);
    border-color: #fff;
    font-weight: 700;
}

/* ── Hero aside ── */

.hc-hero__aside {
    display: grid;
    gap: 12px;
    align-content: start;
}

.hc-contact-card {
    padding: 22px;
    border-radius: var(--r-xl,24px);
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.12);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
}

.hc-contact-card__head {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 16px;
    margin-bottom: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.09);
}

.hc-contact-card__icon {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: var(--r-md,12px);
    background: rgba(255,255,255,0.1);
    font-size: 1.05rem;
    color: #fff;
    flex-shrink: 0;
}

.hc-contact-card__head strong {
    display: block;
    color: #fff;
    font-size: 0.97rem;
    margin-bottom: 2px;
}

.hc-contact-card__head span {
    display: block;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.55);
    line-height: 1.4;
}

.hc-contact-links {
    display: grid;
    gap: 8px;
}

.hc-contact-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 13px;
    border-radius: var(--r-md,12px);
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.78);
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
}

.hc-contact-link:hover {
    background: rgba(255,255,255,0.12);
    color: #fff;
    text-decoration: none;
}

.hc-contact-link__icon {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: rgba(255,255,255,0.09);
    font-size: 0.9rem;
    flex-shrink: 0;
}

.hc-contact-link__icon--wa {
    background: rgba(37,211,102,0.16);
    color: #25D366;
}

.hc-contact-link > div { flex: 1; min-width: 0; }

.hc-contact-link strong {
    display: block;
    font-size: 0.85rem;
    color: inherit;
    margin-bottom: 1px;
}

.hc-contact-link span {
    display: block;
    font-size: 0.78rem;
    color: rgba(255,255,255,0.5);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.hc-contact-link:hover span { color: rgba(255,255,255,0.7); }

.hc-contact-link__arr {
    font-size: 0.72rem;
    color: rgba(255,255,255,0.35);
    flex-shrink: 0;
}

/* ── Categories section ── */

.hc-cats-section {
    padding: 80px 0 72px;
}

.hc-section-head {
    margin-bottom: 48px;
}

.hc-section-head h2 {
    font-size: clamp(1.6rem,3vw,2.2rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    margin: 10px 0 0;
    color: var(--text,#0A0F1E);
}

.hc-cats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill,minmax(230px,1fr));
    gap: 16px;
}

.hc-cat-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 22px;
    border-radius: var(--r-lg,16px);
    background: var(--surface,#fff);
    border: 1px solid var(--border,#DDE4F0);
    text-decoration: none;
    color: var(--text,#0A0F1E);
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.hc-cat-card:hover {
    border-color: var(--blue,#1A56DB);
    box-shadow: 0 4px 24px rgba(26,86,219,0.1);
    transform: translateY(-2px);
    text-decoration: none;
    color: var(--text,#0A0F1E);
}

.hc-cat-card__icon {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: var(--r-md,12px);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.hc-cat-card strong {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text,#0A0F1E);
}

.hc-cat-card p {
    font-size: 0.85rem;
    color: var(--text-2,#374151);
    line-height: 1.55;
    margin: 0;
    flex: 1;
}

.hc-cat-card__foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--text-3,#6B7280);
    border-top: 1px solid var(--border,#DDE4F0);
    padding-top: 10px;
    margin-top: auto;
}

.hc-cat-card__foot i { font-size: 0.72rem; }

/* ── Library ── */

.hc-library {
    padding: 0 0 96px;
    border-top: 1px solid var(--border,#DDE4F0);
}

.hc-library__head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    padding: 56px 0 40px;
}

.hc-library__head h2 {
    font-size: clamp(1.5rem,3vw,2rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    margin: 8px 0 0;
}

.hc-library__status {
    font-size: 0.85rem;
    color: var(--text-3,#6B7280);
    white-space: nowrap;
    flex-shrink: 0;
}

.hc-empty {
    display: none;
    text-align: center;
    padding: 56px 24px;
    color: var(--text-3,#6B7280);
}

.hc-empty.is-visible { display: block; }

.hc-empty i {
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--border-dk,#C3CFE0);
    display: block;
}

.hc-empty p { font-size: 0.97rem; margin: 6px 0 0; }

/* ── Article groups ── */

.hc-group {
    margin-bottom: 64px;
}

.hc-group.is-hidden { display: none; }

.hc-group__head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border,#DDE4F0);
}

.hc-group__label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 999px;
    margin-bottom: 6px;
}

.hc-group__title {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0;
    color: var(--text,#0A0F1E);
}

.hc-group__count {
    font-size: 0.82rem;
    color: var(--text-3,#6B7280);
    white-space: nowrap;
    flex-shrink: 0;
}

.hc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill,minmax(280px,1fr));
    gap: 16px;
}

.hc-article-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 22px;
    border-radius: var(--r-lg,16px);
    background: #fff;
    border: 1px solid var(--border,#DDE4F0);
    text-decoration: none;
    color: var(--text,#0A0F1E);
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.hc-article-card:hover {
    border-color: var(--blue,#1A56DB);
    box-shadow: 0 4px 20px rgba(26,86,219,0.09);
    transform: translateY(-2px);
    text-decoration: none;
    color: var(--text,#0A0F1E);
}

.hc-article-card.is-hidden { display: none; }

.hc-article-card__meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.hc-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.73rem;
    font-weight: 600;
    padding: 3px 9px;
    border-radius: 999px;
    background: var(--cream-2,#EDF1F7);
    color: var(--text-2,#374151);
    white-space: nowrap;
}

.hc-pill--blue {
    background: var(--blue-l,#EBF2FF);
    color: var(--blue,#1A56DB);
}

.hc-pill--mint {
    background: var(--mint-l,#D1FAE5);
    color: var(--mint,#059669);
}

.hc-article-card h3 {
    font-size: 0.97rem;
    font-weight: 700;
    line-height: 1.4;
    margin: 0;
    color: var(--text,#0A0F1E);
    flex: 1;
}

.hc-article-card p {
    font-size: 0.85rem;
    color: var(--text-2,#374151);
    line-height: 1.6;
    margin: 0;
}

.hc-article-card__foot {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--blue,#1A56DB);
    margin-top: auto;
}

.hc-article-card__foot i { font-size: 0.72rem; transition: transform 0.15s; }

.hc-article-card:hover .hc-article-card__foot i { transform: translateX(3px); }

/* ── CTA ── */

.hc-cta {
    background: var(--navy,#0C1A35);
    padding: 80px 0;
}

.hc-cta__panel {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 40px;
    align-items: center;
}

.hc-cta h2 {
    font-size: clamp(1.6rem,3vw,2.2rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    color: #fff;
    margin: 10px 0 12px;
}

.hc-cta p {
    color: rgba(255,255,255,0.6);
    font-size: 1rem;
    line-height: 1.7;
    margin: 0;
    max-width: 54ch;
}

.hc-cta__actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
    flex-shrink: 0;
}

/* ── Empty state (no articles published yet) ── */

.hc-no-content {
    padding: 80px 0 96px;
    text-align: center;
}

.hc-no-content i {
    font-size: 3rem;
    color: var(--border-dk,#C3CFE0);
    margin-bottom: 20px;
    display: block;
}

.hc-no-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 10px;
}

.hc-no-content p {
    font-size: 1rem;
    color: var(--text-2,#374151);
    max-width: 44ch;
    margin: 0 auto;
    line-height: 1.65;
}


/* ================================================================== */
/* HELP CATEGORY                                                        */
/* ================================================================== */

.hcat-shell {
    background: var(--cream,#F7F9FC);
}

/* ── Breadcrumb strip ── */

.hcat-breadbar {
    background: #fff;
    border-bottom: 1px solid var(--border,#DDE4F0);
    padding: 14px 0;
}

.hcat-breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    font-size: 0.8125rem;
    color: var(--text-3,#6B7280);
}

.hcat-breadcrumb a {
    color: var(--text-3,#6B7280);
    text-decoration: none;
    transition: color 0.15s;
}

.hcat-breadcrumb a:hover { color: var(--text,#0A0F1E); }

.hcat-breadcrumb span { color: var(--border-dk,#C3CFE0); }

.hcat-breadcrumb strong { color: var(--text-2,#374151); font-weight: 500; }

/* ── Hero ── */

.hcat-hero {
    padding: 56px 0 52px;
    background: #fff;
    border-bottom: 1px solid var(--border,#DDE4F0);
}

.hcat-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 18px;
}

.hcat-hero h1 {
    font-size: clamp(1.8rem,4vw,2.8rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin: 0 0 14px;
    color: var(--text,#0A0F1E);
    line-height: 1.1;
}

.hcat-hero__desc {
    font-size: 1.05rem;
    color: var(--text-2,#374151);
    line-height: 1.7;
    max-width: 58ch;
    margin: 0 0 22px;
}

.hcat-hero__meta {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--text-3,#6B7280);
}

.hcat-hero__meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ── Layout ── */

.hcat-body {
    padding: 56px 0 96px;
}

.hcat-layout {
    display: grid;
    grid-template-columns: minmax(0,1fr) 280px;
    gap: 40px;
    align-items: start;
}

/* ── Article list ── */

.hcat-list {
    display: grid;
    gap: 12px;
}

.hcat-article {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 22px 24px;
    border-radius: var(--r-lg,16px);
    background: #fff;
    border: 1px solid var(--border,#DDE4F0);
    text-decoration: none;
    color: var(--text,#0A0F1E);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.hcat-article:hover {
    border-color: var(--blue,#1A56DB);
    box-shadow: 0 2px 16px rgba(26,86,219,0.08);
    text-decoration: none;
    color: var(--text,#0A0F1E);
}

.hcat-article.is-hidden { display: none; }

.hcat-article strong {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text,#0A0F1E);
    line-height: 1.4;
}

.hcat-article p {
    font-size: 0.87rem;
    color: var(--text-2,#374151);
    line-height: 1.6;
    margin: 0;
}

.hcat-article__meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 0.78rem;
    color: var(--text-3,#6B7280);
    margin-top: 2px;
}

.hcat-article__meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.hcat-article__arr {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--blue,#1A56DB);
    margin-top: 4px;
}

.hcat-article__arr i { font-size: 0.72rem; transition: transform 0.15s; }

.hcat-article:hover .hcat-article__arr i { transform: translateX(3px); }

/* ── Search within category ── */

.hcat-search {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #fff;
    border: 1px solid var(--border,#DDE4F0);
    border-radius: var(--r-xl,24px);
    padding: 10px 16px;
    margin-bottom: 24px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.hcat-search:focus-within {
    border-color: var(--blue,#1A56DB);
    box-shadow: 0 0 0 3px rgba(26,86,219,0.1);
}

.hcat-search > i { color: var(--text-3,#9CA3AF); font-size: 0.9rem; }

.hcat-search input {
    flex: 1;
    border: 0;
    outline: 0;
    background: transparent;
    font: inherit;
    font-size: 0.93rem;
    color: var(--text,#0A0F1E);
}

.hcat-search input::placeholder { color: var(--text-3,#9CA3AF); }

.hcat-status {
    font-size: 0.82rem;
    color: var(--text-3,#6B7280);
    margin-bottom: 20px;
}

.hcat-empty {
    display: none;
    text-align: center;
    padding: 40px 24px;
    color: var(--text-3,#6B7280);
    background: #fff;
    border: 1px solid var(--border,#DDE4F0);
    border-radius: var(--r-lg,16px);
}

.hcat-empty.is-visible { display: block; }

.hcat-empty i {
    font-size: 1.8rem;
    color: var(--border-dk,#C3CFE0);
    margin-bottom: 12px;
    display: block;
}

/* ── Sidebar ── */

.hcat-sidebar {
    position: sticky;
    top: 84px;
    display: grid;
    gap: 20px;
    align-self: start;
}

.hcat-panel {
    background: #fff;
    border: 1px solid var(--border,#DDE4F0);
    border-radius: var(--r-lg,16px);
    padding: 22px;
}

.hcat-panel h2 {
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-3,#6B7280);
    margin: 0 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border,#DDE4F0);
}

.hcat-panel h3 {
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-3,#6B7280);
    margin: 0 0 14px;
}

.hcat-cats-list {
    display: grid;
    gap: 4px;
}

.hcat-cat-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 12px;
    border-radius: var(--r-md,10px);
    text-decoration: none;
    color: var(--text-2,#374151);
    font-size: 0.87rem;
    transition: background 0.15s, color 0.15s;
}

.hcat-cat-link:hover {
    background: var(--cream,#F7F9FC);
    color: var(--text,#0A0F1E);
    text-decoration: none;
}

.hcat-cat-link.is-current {
    background: var(--blue-l,#EBF2FF);
    color: var(--blue,#1A56DB);
    font-weight: 600;
}

.hcat-cat-link__label {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hcat-cat-link span:last-child {
    font-size: 0.78rem;
    color: var(--text-3,#6B7280);
}

.hcat-support-links {
    display: grid;
    gap: 8px;
}

.hcat-support-link {
    display: block;
    padding: 12px 14px;
    border-radius: var(--r-md,10px);
    background: var(--cream,#F7F9FC);
    border: 1px solid var(--border,#DDE4F0);
    text-decoration: none;
    color: var(--text,#0A0F1E);
    font-size: 0.87rem;
    transition: border-color 0.15s, background 0.15s;
}

.hcat-support-link:hover {
    border-color: var(--blue,#1A56DB);
    background: var(--blue-l,#EBF2FF);
    text-decoration: none;
}

.hcat-support-link strong {
    display: block;
    font-weight: 700;
    margin-bottom: 2px;
    color: var(--text,#0A0F1E);
}

.hcat-support-link span {
    font-size: 0.8rem;
    color: var(--text-3,#6B7280);
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ── Empty category ── */

.hcat-empty-cat {
    padding: 48px 24px;
    text-align: center;
    background: #fff;
    border: 1px solid var(--border,#DDE4F0);
    border-radius: var(--r-lg,16px);
}

.hcat-empty-cat h2 {
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0 0 8px;
}

.hcat-empty-cat p {
    color: var(--text-2,#374151);
    font-size: 0.93rem;
    line-height: 1.65;
    margin: 0;
}


/* ================================================================== */
/* HELP ARTICLE                                                         */
/* ================================================================== */

/* ── Reading progress ── */

.hart-progress {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    z-index: 9999;
    background: var(--border,#DDE4F0);
    pointer-events: none;
}

.hart-progress__bar {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--blue,#1A56DB), var(--mint,#059669));
    transition: width 0.1s linear;
}

/* ── Shell ── */

.hart-shell {
    background: var(--cream,#F7F9FC);
}

/* ── Hero ── */

.hart-hero {
    padding: 56px 0 52px;
    background: var(--navy,#0C1A35);
    position: relative;
    overflow: hidden;
    color: #fff;
}

.hart-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 55% 60% at 100% -5%, rgba(26,86,219,0.2) 0%, transparent 55%);
    pointer-events: none;
}

.hart-hero__inner {
    position: relative;
    z-index: 1;
}

.hart-breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.45);
    margin-bottom: 24px;
}

.hart-breadcrumb a {
    color: rgba(255,255,255,0.45);
    text-decoration: none;
    transition: color 0.15s;
}

.hart-breadcrumb a:hover { color: rgba(255,255,255,0.8); }

.hart-breadcrumb span { color: rgba(255,255,255,0.25); }

.hart-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

.hart-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 999px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.82);
}

.hart-hero h1 {
    font-size: clamp(1.7rem,3.5vw,2.7rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: #fff;
    margin: 0 0 14px;
    max-width: 24ch;
}

.hart-hero__intro {
    font-size: 1rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.7;
    max-width: 60ch;
    margin: 0;
}

/* ── Main layout ── */

.hart-page {
    padding: 48px 0 96px;
}

.hart-layout {
    display: grid;
    grid-template-columns: minmax(0,1fr) 280px;
    gap: 48px;
    align-items: start;
}

/* ── Article content ── */

.hart-content-shell {
    min-width: 0;
}

.hart-key-facts {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 12px;
    margin-bottom: 36px;
}

.hart-key-fact {
    padding: 16px;
    border-radius: var(--r-md,12px);
    background: #fff;
    border: 1px solid var(--border,#DDE4F0);
    text-align: center;
}

.hart-key-fact span {
    display: block;
    font-size: 0.73rem;
    color: var(--text-3,#6B7280);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.hart-key-fact strong {
    display: block;
    font-size: 0.93rem;
    font-weight: 700;
    color: var(--text,#0A0F1E);
}

/* ── Jump links ── */

.hart-jump-strip {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    padding: 14px 20px;
    border-radius: var(--r-md,12px);
    background: var(--blue-l,#EBF2FF);
    border: 1px solid rgba(26,86,219,0.15);
    margin-bottom: 28px;
}

.hart-jump-strip__label {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--blue,#1A56DB);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    flex-shrink: 0;
}

.hart-jump-strip a {
    font-size: 0.83rem;
    font-weight: 500;
    color: var(--blue,#1A56DB);
    text-decoration: none;
    padding: 4px 10px;
    border-radius: 999px;
    transition: background 0.15s;
}

.hart-jump-strip a:hover {
    background: rgba(26,86,219,0.12);
    text-decoration: none;
}

/* ── Article body prose ── */

.hart-body {
    background: #fff;
    border: 1px solid var(--border,#DDE4F0);
    border-radius: var(--r-lg,16px);
    padding: 40px 48px;
    line-height: 1.78;
    font-size: 1rem;
    color: var(--text,#0A0F1E);
}

.hart-body h2 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    margin: 2.2em 0 0.7em;
    color: var(--text,#0A0F1E);
    scroll-margin-top: 90px;
}

.hart-body h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 1.8em 0 0.6em;
    color: var(--text,#0A0F1E);
    scroll-margin-top: 90px;
}

.hart-body h2:first-child,
.hart-body h3:first-child { margin-top: 0; }

.hart-body p {
    margin: 0 0 1.2em;
    color: var(--text,#0A0F1E);
}

.hart-body ul,
.hart-body ol {
    margin: 0 0 1.2em;
    padding-left: 1.5em;
}

.hart-body li { margin-bottom: 0.45em; }

.hart-body a {
    color: var(--blue,#1A56DB);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(26,86,219,0.35);
}

.hart-body a:hover { text-decoration-color: var(--blue,#1A56DB); }

.hart-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--r-md,12px);
    border: 1px solid var(--border,#DDE4F0);
    margin: 1.2em 0;
}

.hart-body blockquote {
    margin: 1.6em 0;
    padding: 18px 22px;
    border-left: 3px solid var(--blue,#1A56DB);
    background: var(--blue-l,#EBF2FF);
    border-radius: 0 var(--r-md,12px) var(--r-md,12px) 0;
    font-style: italic;
    color: var(--text-2,#374151);
}

.hart-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.4em 0;
    font-size: 0.93rem;
}

.hart-body th,
.hart-body td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border,#DDE4F0);
}

.hart-body th {
    font-weight: 700;
    background: var(--cream,#F7F9FC);
    color: var(--text,#0A0F1E);
}

/* ── Feedback ── */

.hart-feedback {
    margin-top: 32px;
    padding: 28px;
    border-radius: var(--r-lg,16px);
    background: #fff;
    border: 1px solid var(--border,#DDE4F0);
    text-align: center;
}

.hart-feedback__title {
    font-size: 0.97rem;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--text,#0A0F1E);
}

.hart-feedback__buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.hart-feedback__btn {
    padding: 9px 20px;
    border-radius: 999px;
    border: 1px solid var(--border,#DDE4F0);
    background: var(--cream,#F7F9FC);
    color: var(--text-2,#374151);
    font: inherit;
    font-size: 0.87rem;
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.hart-feedback__btn:hover {
    border-color: var(--blue,#1A56DB);
    background: var(--blue-l,#EBF2FF);
    color: var(--blue,#1A56DB);
}

.hart-feedback__btn.is-active {
    border-color: var(--blue,#1A56DB);
    background: var(--blue,#1A56DB);
    color: #fff;
}

.hart-feedback__thanks {
    display: none;
    font-size: 0.87rem;
    color: var(--text-3,#6B7280);
    margin-top: 12px;
}

.hart-feedback__thanks.is-visible { display: block; }

/* ── CTA band ── */

.hart-cta-band {
    margin-top: 32px;
    padding: 36px;
    border-radius: var(--r-lg,16px);
    background: var(--navy,#0C1A35);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    flex-wrap: wrap;
}

.hart-cta-band__eyebrow {
    display: block;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--gold,#F59E0B);
    margin-bottom: 8px;
}

.hart-cta-band h2 {
    font-size: 1.35rem;
    font-weight: 800;
    color: #fff;
    margin: 0 0 8px;
    letter-spacing: -0.02em;
}

.hart-cta-band p {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.65;
}

.hart-cta-band__actions {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
    flex-wrap: wrap;
}

/* ── Related articles ── */

.hart-related {
    margin-top: 32px;
}

.hart-related h2 {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.015em;
    margin: 0 0 16px;
    color: var(--text,#0A0F1E);
}

.hart-related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill,minmax(220px,1fr));
    gap: 12px;
}

.hart-related-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border-radius: var(--r-md,12px);
    background: #fff;
    border: 1px solid var(--border,#DDE4F0);
    text-decoration: none;
    color: var(--text,#0A0F1E);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.hart-related-card:hover {
    border-color: var(--blue,#1A56DB);
    box-shadow: 0 2px 12px rgba(26,86,219,0.08);
    text-decoration: none;
    color: var(--text,#0A0F1E);
}

.hart-related-card__icon {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: var(--r-sm,8px);
    background: var(--blue-l,#EBF2FF);
    color: var(--blue,#1A56DB);
    font-size: 0.9rem;
    flex-shrink: 0;
}

.hart-related-card strong {
    display: block;
    font-size: 0.87rem;
    font-weight: 700;
    line-height: 1.4;
    color: var(--text,#0A0F1E);
    margin-bottom: 2px;
}

.hart-related-card span {
    font-size: 0.76rem;
    color: var(--text-3,#6B7280);
}

/* ── Prev/next nav ── */

.hart-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.hart-nav__item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 20px;
    border-radius: var(--r-lg,16px);
    background: #fff;
    border: 1px solid var(--border,#DDE4F0);
    text-decoration: none;
    color: var(--text,#0A0F1E);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.hart-nav__item:hover {
    border-color: var(--blue,#1A56DB);
    box-shadow: 0 2px 12px rgba(26,86,219,0.08);
    text-decoration: none;
    color: var(--text,#0A0F1E);
}

.hart-nav__item--next { justify-content: flex-end; text-align: right; }

.hart-nav__arrow {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--cream,#F7F9FC);
    color: var(--text-3,#6B7280);
    font-size: 0.85rem;
    flex-shrink: 0;
    transition: background 0.15s, color 0.15s;
}

.hart-nav__item:hover .hart-nav__arrow {
    background: var(--blue-l,#EBF2FF);
    color: var(--blue,#1A56DB);
}

.hart-nav__label {
    display: block;
    font-size: 0.73rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-3,#6B7280);
    margin-bottom: 3px;
}

.hart-nav__title {
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text,#0A0F1E);
    line-height: 1.35;
}

/* ── Sidebar ── */

.hart-sidebar {
    position: sticky;
    top: 80px;
    display: grid;
    gap: 20px;
    align-self: start;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border,#DDE4F0) transparent;
}

.hart-panel {
    background: #fff;
    border: 1px solid var(--border,#DDE4F0);
    border-radius: var(--r-lg,16px);
    padding: 22px;
}

.hart-panel h2 {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-3,#6B7280);
    margin: 0 0 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border,#DDE4F0);
}

/* ── TOC ── */

.hart-toc ol {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 2px;
}

.hart-toc li { display: flex; }

.hart-toc a {
    display: block;
    width: 100%;
    padding: 6px 10px;
    border-radius: var(--r-sm,8px);
    font-size: 0.83rem;
    color: var(--text-2,#374151);
    text-decoration: none;
    line-height: 1.45;
    transition: background 0.15s, color 0.15s;
}

.hart-toc a:hover {
    background: var(--cream,#F7F9FC);
    color: var(--text,#0A0F1E);
}

.hart-toc a.is-active {
    background: var(--blue-l,#EBF2FF);
    color: var(--blue,#1A56DB);
    font-weight: 600;
}

.hart-toc .level-3 a { padding-left: 22px; font-size: 0.8rem; }

/* ── Action links ── */

.hart-actions {
    display: grid;
    gap: 6px;
}

.hart-action {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--r-md,10px);
    text-decoration: none;
    color: var(--text-2,#374151);
    font-size: 0.87rem;
    border: 0;
    background: transparent;
    cursor: pointer;
    width: 100%;
    text-align: left;
    font-family: inherit;
    transition: background 0.15s, color 0.15s;
}

.hart-action:hover {
    background: var(--cream,#F7F9FC);
    color: var(--text,#0A0F1E);
    text-decoration: none;
}

.hart-action__icon {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: var(--r-sm,8px);
    background: var(--cream,#F7F9FC);
    color: var(--text-3,#6B7280);
    font-size: 0.85rem;
    flex-shrink: 0;
    transition: background 0.15s, color 0.15s;
}

.hart-action:hover .hart-action__icon {
    background: var(--blue-l,#EBF2FF);
    color: var(--blue,#1A56DB);
}

.hart-action strong {
    display: block;
    font-weight: 700;
    color: inherit;
    font-size: 0.87rem;
}

.hart-action span {
    display: block;
    font-size: 0.76rem;
    color: var(--text-3,#6B7280);
}

/* ── Sidebar CTA ── */

.hart-side-cta {
    background: var(--navy,#0C1A35);
    border-radius: var(--r-lg,16px);
    padding: 22px;
    text-align: center;
    color: #fff;
}

.hart-side-cta__icon {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: var(--r-md,12px);
    background: rgba(255,255,255,0.1);
    font-size: 1rem;
    margin: 0 auto 14px;
    color: var(--gold,#F59E0B);
}

.hart-side-cta h3 {
    font-size: 1rem;
    font-weight: 800;
    color: #fff;
    margin: 0 0 8px;
}

.hart-side-cta p {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
    margin: 0 0 16px;
}

.hart-side-cta a {
    display: block;
    padding: 10px 16px;
    border-radius: 999px;
    background: var(--gold,#F59E0B);
    color: var(--navy,#0C1A35);
    font-size: 0.85rem;
    font-weight: 700;
    text-decoration: none;
    transition: opacity 0.15s;
}

.hart-side-cta a:hover { opacity: 0.9; text-decoration: none; }


/* ================================================================== */
/* RESPONSIVE                                                           */
/* ================================================================== */

@media (max-width: 1024px) {
    .hc-hero__inner { grid-template-columns: 1fr; }
    .hc-hero__aside { display: none; }
    .hart-layout { grid-template-columns: 1fr; }
    .hart-sidebar { position: static; max-height: none; overflow: visible; }
    .hcat-layout { grid-template-columns: 1fr; }
    .hcat-sidebar { position: static; }
    .hart-key-facts { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 768px) {
    .hc-hero { padding: 56px 0 48px; }
    .hc-cats-section { padding: 56px 0 48px; }
    .hc-library { padding-bottom: 64px; }
    .hc-cats-grid { grid-template-columns: repeat(auto-fill,minmax(180px,1fr)); }
    .hc-grid { grid-template-columns: 1fr; }
    .hc-cta__panel { grid-template-columns: 1fr; }
    .hc-cta__actions { flex-direction: row; }
    .hcat-hero { padding: 40px 0 36px; }
    .hcat-body { padding: 40px 0 64px; }
    .hart-hero { padding: 40px 0 36px; }
    .hart-body { padding: 28px 24px; }
    .hart-cta-band { flex-direction: column; gap: 20px; }
    .hart-nav { grid-template-columns: 1fr; }
    .hart-related-grid { grid-template-columns: 1fr; }
    .hart-key-facts { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 480px) {
    .hart-key-facts { grid-template-columns: 1fr 1fr; }
    .hc-library__head { flex-direction: column; align-items: flex-start; gap: 8px; }
}

/* ══════════════════════════════════════════════════════
   IMPROVED EMPTY STATE — hc-no-content
══════════════════════════════════════════════════════ */
.hc-no-content {
  text-align: center;
  padding: 56px 32px 48px;
  background: #fff;
  border: 1px solid var(--border, #E2E8F0);
  border-radius: 20px;
  max-width: 820px;
  margin: 0 auto;
}
.hc-no-content__icon {
  width: 72px; height: 72px; border-radius: 20px;
  background: var(--blue-l, #EFF6FF); color: var(--blue, #1A56DB);
  font-size: 1.75rem; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 22px;
}
.hc-no-content h2 { font-size: 1.375rem; margin-bottom: 10px; color: var(--text, #0F172A); }
.hc-no-content p  { font-size: .9375rem; color: var(--text-2, #374151); max-width: 520px; margin: 0 auto .8em; }

.hc-no-content__topics { margin-top: 40px; text-align: left; }
.hc-no-content__topics-label {
  font-family: var(--f-head); font-size: .72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .08em; color: var(--text-3, #64748B); margin-bottom: 16px; text-align: center;
}
.hc-no-content__topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 10px;
}
.hc-no-content__topic {
  display: flex; align-items: flex-start; gap: 12px;
  background: var(--cream, #FAFAF7); border: 1px solid var(--border, #E2E8F0);
  border-radius: 12px; padding: 14px 16px;
  transition: border-color .15s, box-shadow .15s;
}
.hc-no-content__topic:hover { border-color: rgba(26,86,219,.25); box-shadow: 0 0 0 3px rgba(26,86,219,.06); }
.hc-no-content__topic-icon {
  width: 34px; height: 34px; border-radius: 10px; flex-shrink: 0;
  background: var(--blue-l, #EFF6FF); color: var(--blue, #1A56DB);
  display: flex; align-items: center; justify-content: center; font-size: .85rem;
}
.hc-no-content__topic-name { font-family: var(--f-head); font-size: .875rem; font-weight: 700; color: var(--text, #0F172A); margin-bottom: 3px; }
.hc-no-content__topic-desc { font-size: .78rem; color: var(--text-3, #64748B); line-height: 1.5; }