/* FindEdition Publishing — Platform 9.5 visual design system */

:root {
    --pub-accent: #2563eb;
    --pub-accent-hover: #1d4ed8;
    --pub-accent-soft: color-mix(in srgb, var(--pub-accent) 12%, #fff);
    --pub-text: #0f172a;
    --pub-text-secondary: #334155;
    --pub-text-muted: #64748b;
    --pub-text-inverse: #ffffff;
    --pub-surface: #ffffff;
    --pub-surface-subtle: #f8fafc;
    --pub-bg: #eef2f6;
    --pub-border: #e2e8f0;
    --pub-border-strong: #cbd5e1;
    --pub-radius: 0.75rem;
    --pub-radius-lg: 1rem;
    --pub-shadow-sm: 0 1px 2px rgb(15 23 42 / 0.06);
    --pub-shadow: 0 4px 16px rgb(15 23 42 / 0.08);
    --pub-shadow-lg: 0 12px 32px rgb(15 23 42 / 0.12);
    --pub-gap: 1.5rem;
    --pub-max: 1200px;
    --pub-content-width: 42rem;
    --pub-sidebar-width: 300px;
    --pub-font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --pub-font-reading: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
    --pub-sticky-top: 4.5rem;
    --pub-line-height: 1.75;
    --pub-transition: 0.2s ease;
}

*, .pub-page * { box-sizing: border-box; }

.pub-page {
    background: var(--pub-bg);
    color: var(--pub-text);
    font-family: var(--pub-font);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.pub-container { max-width: var(--pub-max); margin: 0 auto; padding: 0 1.25rem; width: 100%; }
.pub-ad-slot { padding: 1rem 0; }

/* ── Hero ── */
.pub-hero {
    background: linear-gradient(145deg, #0f172a 0%, #1e293b 55%, color-mix(in srgb, var(--pub-accent) 35%, #1e293b) 100%);
    color: var(--pub-text-inverse);
    padding: clamp(2rem, 5vw, 3.5rem) 0;
}
.pub-hero--compact { padding: clamp(1.75rem, 4vw, 2.75rem) 0; text-align: center; }
.pub-hero__inner { display: grid; grid-template-columns: 1fr; gap: 2rem; align-items: center; }
@media (min-width: 1024px) { .pub-hero__inner { grid-template-columns: 1.1fr 0.9fr; } }
.pub-hero__title { font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 800; line-height: 1.12; margin: 0.75rem 0; letter-spacing: -0.02em; }
.pub-hero__title a { color: inherit; text-decoration: none; transition: opacity var(--pub-transition); }
.pub-hero__title a:hover { opacity: 0.9; text-decoration: underline; text-underline-offset: 3px; }
.pub-hero__excerpt { font-size: 1.0625rem; color: #e2e8f0; line-height: 1.65; margin-bottom: 1.5rem; max-width: 38rem; }
.pub-hero__date { font-size: 0.8125rem; color: #cbd5e1; margin-left: 0.75rem; }
.pub-hero__media img { width: 100%; border-radius: var(--pub-radius-lg); object-fit: cover; max-height: 380px; box-shadow: var(--pub-shadow-lg); }
.pub-badge {
    display: inline-block; background: var(--pub-accent); color: #fff;
    font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.1em;
    padding: 0.3rem 0.75rem; border-radius: 9999px; text-transform: uppercase;
}

/* ── Layout ── */
.pub-layout {
    display: grid; grid-template-columns: 1fr; gap: 2rem;
    padding: clamp(1.5rem, 3vw, 2.5rem) 0;
    align-items: start;
}
@media (min-width: 1024px) {
    .pub-layout:has(.pub-sidebar) { grid-template-columns: minmax(0, 1fr) var(--pub-sidebar-width); gap: 2.5rem; }
}
@media (min-width: 1400px) {
    .pub-layout--article:has(.pub-sidebar) { grid-template-columns: minmax(0, 1fr) 320px; }
    .pub-layout--article.pub-layout--no-sidebar { grid-template-columns: minmax(0, 1fr); }
}
.pub-main { min-width: 0; }
.pub-show-footer { padding-top: 0; border-top: 1px solid var(--pub-border); margin-top: 0; }

/* ── Filters ── */
.pub-filters { margin-bottom: 2rem; }
.pub-filters__form { display: flex; flex-wrap: wrap; gap: 0.625rem; align-items: stretch; }
.pub-filters__search { flex: 1; min-width: min(100%, 220px); position: relative; }
.pub-filters__search i { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); color: var(--pub-text-muted); pointer-events: none; }
.pub-filters__search input {
    width: 100%; height: 2.75rem; padding: 0 1rem 0 2.5rem;
    border: 1px solid var(--pub-border-strong); border-radius: var(--pub-radius);
    background: var(--pub-surface); color: var(--pub-text); font-size: 0.9375rem;
    transition: border-color var(--pub-transition), box-shadow var(--pub-transition);
}
.pub-filters__search input::placeholder { color: var(--pub-text-muted); }
.pub-filters__select {
    height: 2.75rem; padding: 0 1rem; border: 1px solid var(--pub-border-strong);
    border-radius: var(--pub-radius); background: var(--pub-surface); color: var(--pub-text); font-size: 0.9375rem;
}
.pub-filters__clear { color: var(--pub-accent); font-size: 0.875rem; font-weight: 600; align-self: center; text-decoration: none; }
.pub-filters__clear:hover { text-decoration: underline; }
.pub-filters__active { margin-top: 0.625rem; font-size: 0.875rem; color: var(--pub-text-secondary); }

/* ── Buttons ── */
.pub-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.375rem;
    padding: 0.625rem 1.25rem; border-radius: var(--pub-radius);
    font-weight: 600; font-size: 0.875rem; font-family: inherit;
    border: none; cursor: pointer; text-decoration: none;
    transition: transform var(--pub-transition), box-shadow var(--pub-transition), background var(--pub-transition);
}
.pub-btn--sm { padding: 0.5rem 1rem; font-size: 0.8125rem; }
.pub-btn--primary { background: var(--pub-accent); color: #fff; box-shadow: var(--pub-shadow-sm); }
.pub-btn--primary:hover { background: var(--pub-accent-hover); transform: translateY(-1px); box-shadow: var(--pub-shadow); }
.pub-btn--light { background: rgb(255 255 255 / 0.12); color: #fff; border: 1px solid rgb(255 255 255 / 0.28); }
.pub-btn--light:hover { background: rgb(255 255 255 / 0.2); }
.pub-btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none !important; }

/* ── Sections & grid ── */
.pub-section { margin-bottom: 2.75rem; }
.pub-section__header { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-bottom: 1.25rem; padding-bottom: 0.75rem; border-bottom: 2px solid var(--pub-border); }
.pub-section__title { font-size: clamp(1.25rem, 2.5vw, 1.5rem); font-weight: 800; color: var(--pub-text); letter-spacing: -0.02em; margin: 0; }
.pub-section__link { color: var(--pub-accent); font-weight: 600; font-size: 0.875rem; text-decoration: none; white-space: nowrap; }
.pub-section__link:hover { text-decoration: underline; }
.pub-grid { display: grid; gap: 1.25rem; }
.pub-grid--2 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); }
.pub-grid--3 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr)); }
.pub-grid--4 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 200px), 1fr)); }

/* ── Cards ── */
.pub-card {
    background: var(--pub-surface); border-radius: var(--pub-radius-lg);
    border: 1px solid var(--pub-border); overflow: hidden;
    box-shadow: var(--pub-shadow-sm);
    transition: transform var(--pub-transition), box-shadow var(--pub-transition), border-color var(--pub-transition);
    height: 100%; display: flex; flex-direction: column;
}
.pub-card:hover { transform: translateY(-3px); box-shadow: var(--pub-shadow); border-color: color-mix(in srgb, var(--pub-accent) 25%, var(--pub-border)); }
.pub-card__image { display: block; position: relative; aspect-ratio: 16/10; overflow: hidden; background: var(--pub-surface-subtle); }
.pub-card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.45s ease; }
.pub-card:hover .pub-card__image img { transform: scale(1.04); }
.pub-card__category {
    position: absolute; top: 0.75rem; left: 0.75rem;
    background: var(--pub-accent); color: #fff; font-size: 0.6875rem;
    font-weight: 700; padding: 0.25rem 0.625rem; border-radius: 9999px;
}
.pub-card__body { padding: 1.25rem; flex: 1; display: flex; flex-direction: column; }
.pub-card__date { font-size: 0.75rem; color: var(--pub-text-muted); font-weight: 500; }
.pub-card__title { font-size: 1.0625rem; font-weight: 700; margin: 0.5rem 0; line-height: 1.35; }
.pub-card__title a { color: var(--pub-text); text-decoration: none; transition: color var(--pub-transition); }
.pub-card__title a:hover { color: var(--pub-accent); }
.pub-card__excerpt {
    font-size: 0.875rem; color: var(--pub-text-secondary); line-height: 1.55; margin-bottom: 0.75rem; flex: 1;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.pub-card__meta {
    display: flex; flex-wrap: wrap; gap: 0.625rem 1rem; font-size: 0.75rem;
    color: var(--pub-text-muted); padding-top: 0.875rem; border-top: 1px solid var(--pub-border); margin-top: auto;
}
.pub-card__author a { color: var(--pub-text-secondary); font-weight: 600; text-decoration: none; }
.pub-card__author a:hover { color: var(--pub-accent); }
.pub-card--compact .pub-card__excerpt { -webkit-line-clamp: 2; }
.pub-card--featured { border-color: color-mix(in srgb, var(--pub-accent) 40%, var(--pub-border)); box-shadow: var(--pub-shadow); }
.pub-card--no-image .pub-card__body { border-top: 3px solid var(--pub-accent); }

/* ── Sidebar ── */
.pub-sidebar {
    display: flex; flex-direction: column; gap: 1rem;
    width: 100%; max-width: var(--pub-sidebar-width);
}
@media (min-width: 1024px) {
    .pub-sidebar { position: sticky; top: var(--pub-sticky-top); align-self: start; max-height: calc(100vh - var(--pub-sticky-top) - 1rem); overflow-y: auto; scrollbar-width: thin; }
    .pub-sidebar--article { top: calc(var(--pub-sticky-top) + 0.5rem); }
}
@media (max-width: 1023px) {
    .pub-sidebar { max-width: none; order: 2; }
    .pub-main--article { order: 1; }
}
.pub-sidebar__widget {
    background: var(--pub-surface); border: 1px solid var(--pub-border);
    border-radius: var(--pub-radius-lg); padding: 1.25rem;
    box-shadow: var(--pub-shadow-sm);
}
.pub-sidebar__widget--ad:empty { display: none; margin: 0; padding: 0; border: none; box-shadow: none; }
.pub-sidebar__title {
    font-size: 0.8125rem; font-weight: 800; margin: 0 0 0.875rem;
    color: var(--pub-text); text-transform: uppercase; letter-spacing: 0.06em;
    display: flex; align-items: center; gap: 0.5rem;
}
.pub-sidebar__list { list-style: none; padding: 0; margin: 0; }
.pub-sidebar__list li {
    padding: 0.625rem 0; border-bottom: 1px solid var(--pub-border);
    display: flex; gap: 0.5rem; align-items: flex-start;
}
.pub-sidebar__list li:last-child { border-bottom: none; padding-bottom: 0; }
.pub-sidebar__list a {
    color: var(--pub-text-secondary); text-decoration: none; font-size: 0.875rem;
    font-weight: 500; line-height: 1.45; flex: 1;
    transition: color var(--pub-transition);
}
.pub-sidebar__list a:hover { color: var(--pub-accent); }
.pub-sidebar__rank { font-weight: 800; color: var(--pub-accent); min-width: 1.25rem; font-size: 0.875rem; }
.pub-sidebar__stat { font-size: 0.6875rem; color: var(--pub-text-muted); white-space: nowrap; }
.pub-newsletter p { font-size: 0.875rem; color: var(--pub-text-secondary); margin: 0 0 0.875rem; line-height: 1.5; }

/* Sidebar author */
.pub-sidebar-author { text-align: center; }
.pub-sidebar-author__avatar {
    width: 4.5rem; height: 4.5rem; border-radius: 9999px; object-fit: cover;
    margin: 0 auto 0.75rem; display: block; border: 3px solid var(--pub-accent-soft);
}
.pub-sidebar-author__avatar--placeholder {
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--pub-accent), #6366f1);
    color: #fff; font-weight: 800; font-size: 1.375rem; margin-left: auto; margin-right: auto;
}
.pub-sidebar-author__label { font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--pub-text-muted); margin: 0 0 0.25rem; }
.pub-sidebar-author__name { font-size: 1rem; font-weight: 800; color: var(--pub-text); margin: 0 0 0.5rem; }
.pub-sidebar-author__bio { font-size: 0.8125rem; color: var(--pub-text-secondary); line-height: 1.5; margin: 0 0 0.75rem; }
.pub-sidebar-author__link { font-size: 0.8125rem; font-weight: 700; color: var(--pub-accent); text-decoration: none; }
.pub-sidebar-author__link:hover { text-decoration: underline; }

/* TOC in sidebar */
.pub-toc.pub-sidebar__widget { padding: 1rem 1.25rem; }
.pub-toc__list { list-style: none; padding: 0; margin: 0; font-size: 0.8125rem; counter-reset: toc; }
.pub-toc__list li { margin: 0; padding: 0; border: none; }
.pub-toc__list a {
    color: var(--pub-text-secondary); text-decoration: none; display: block;
    padding: 0.4rem 0 0.4rem 0.625rem; border-left: 2px solid transparent;
    line-height: 1.4; transition: color var(--pub-transition), border-color var(--pub-transition);
}
.pub-toc__list a:hover, .pub-toc__list a.is-active { color: var(--pub-accent); border-left-color: var(--pub-accent); font-weight: 600; }
.pub-toc__list a.pub-toc__link--nested { padding-left: 1rem; }
.pub-toc--inline { margin: 0 0 1.5rem; padding: 1rem 1.25rem; background: var(--pub-surface-subtle); border: 1px solid var(--pub-border); border-radius: var(--pub-radius); }
.pub-toc--inline .pub-toc__title { font-size: 0.8125rem; font-weight: 800; margin: 0 0 0.625rem; color: var(--pub-text); text-transform: uppercase; letter-spacing: 0.05em; }

/* ── Engagement bar ── */
.pub-engagement {
    position: sticky; top: 0; z-index: 45;
    background: rgb(255 255 255 / 0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--pub-border); box-shadow: var(--pub-shadow-sm);
}
.pub-engagement__inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; padding: 0.625rem 0; }
.pub-engagement__group { display: flex; flex-wrap: wrap; gap: 0.375rem; }
.pub-engagement__btn {
    display: inline-flex; align-items: center; gap: 0.375rem;
    padding: 0.5rem 0.875rem; border: 1px solid var(--pub-border-strong); border-radius: 0.5rem;
    background: var(--pub-surface); font-size: 0.8125rem; font-weight: 600;
    color: var(--pub-text-secondary); cursor: pointer; font-family: inherit;
    transition: background var(--pub-transition), border-color var(--pub-transition), color var(--pub-transition);
}
.pub-engagement__btn:hover { background: var(--pub-surface-subtle); border-color: var(--pub-accent); color: var(--pub-text); }
.pub-engagement__icon--liked { color: #dc2626 !important; }
.pub-engagement__icon--saved { color: var(--pub-accent) !important; }
.pub-engagement__icon--following { color: #16a34a !important; }

/* Reading progress */
.pub-reading-progress {
    position: fixed; top: 0; left: 0; height: 3px; width: 0;
    background: linear-gradient(90deg, var(--pub-accent), color-mix(in srgb, var(--pub-accent) 60%, #8b5cf6));
    z-index: 60; transition: width 0.12s linear; box-shadow: 0 0 8px color-mix(in srgb, var(--pub-accent) 50%, transparent);
}

/* ── Comments ── */
.pub-comments {
    background: var(--pub-surface); border: 1px solid var(--pub-border);
    border-radius: var(--pub-radius-lg); padding: 1.5rem 1.75rem;
    margin-bottom: 1.25rem; box-shadow: var(--pub-shadow-sm);
}
.pub-comments__title {
    font-size: 1.125rem; font-weight: 800; margin: 0 0 1rem;
    display: flex; align-items: center; gap: 0.5rem; color: var(--pub-text);
}
.pub-comments__count {
    background: var(--pub-accent-soft); color: var(--pub-accent);
    font-size: 0.75rem; font-weight: 700; padding: 0.15rem 0.5rem; border-radius: 9999px; min-width: 1.5rem; text-align: center;
}
.pub-comments__empty { color: var(--pub-text-muted); font-size: 0.9375rem; margin: 0 0 1rem; line-height: 1.55; }
.pub-comments__form-wrap { margin-top: 0.5rem; }
.pub-comments__input {
    width: 100%; padding: 0.875rem 1rem; border: 1px solid var(--pub-border-strong);
    border-radius: var(--pub-radius); margin-bottom: 0.75rem; resize: vertical;
    font-family: inherit; font-size: 0.9375rem; color: var(--pub-text); background: var(--pub-surface);
    min-height: 6rem; line-height: 1.5;
}
.pub-comments__input::placeholder { color: var(--pub-text-muted); }
.pub-comments__error { color: #dc2626; font-size: 0.875rem; margin-bottom: 0.5rem; }
.pub-comments__login { text-align: center; padding: 1.5rem; background: var(--pub-surface-subtle); border-radius: var(--pub-radius); border: 1px dashed var(--pub-border); }
.pub-comments__login p { color: var(--pub-text-secondary); margin-bottom: 1rem; }
.pub-comment { display: flex; gap: 0.875rem; padding: 1rem 0; border-bottom: 1px solid var(--pub-border); }
.pub-comment:last-child { border-bottom: none; padding-bottom: 0; }
.pub-comment__avatar { width: 2.75rem; height: 2.75rem; border-radius: 9999px; object-fit: cover; flex-shrink: 0; }
.pub-comment__avatar--placeholder {
    background: linear-gradient(135deg, var(--pub-accent), #8b5cf6); color: #fff;
    display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.875rem;
}
.pub-comment__body { flex: 1; min-width: 0; }
.pub-comment__body header { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.25rem 1rem; margin-bottom: 0.375rem; }
.pub-comment__body header strong { color: var(--pub-text); font-size: 0.875rem; }
.pub-comment__body time { color: var(--pub-text-muted); font-size: 0.75rem; }
.pub-comment__body p { color: var(--pub-text-secondary); line-height: 1.6; white-space: pre-wrap; margin: 0; font-size: 0.9375rem; }

/* ── Pagination & empty ── */
.pub-pagination { margin-top: 2.5rem; }
.pub-pagination nav { display: flex; justify-content: center; }
.pub-pagination .pagination { display: flex; flex-wrap: wrap; gap: 0.35rem; list-style: none; padding: 0; margin: 0; }
.pub-pagination .page-item .page-link {
    display: inline-flex; align-items: center; justify-content: center; min-width: 2.375rem; height: 2.375rem;
    padding: 0 0.625rem; border: 1px solid var(--pub-border-strong); border-radius: 0.5rem;
    color: var(--pub-text-secondary); text-decoration: none; font-size: 0.875rem; font-weight: 600;
    background: var(--pub-surface); transition: all var(--pub-transition);
}
.pub-pagination .page-item.active .page-link { background: var(--pub-accent); border-color: var(--pub-accent); color: #fff; }
.pub-pagination .page-item.disabled .page-link { opacity: 0.4; pointer-events: none; }
.pub-pagination .page-link:hover { border-color: var(--pub-accent); color: var(--pub-accent); }
.pub-empty { text-align: center; padding: 4rem 2rem; color: var(--pub-text-muted); background: var(--pub-surface); border-radius: var(--pub-radius-lg); border: 1px dashed var(--pub-border); }
.pub-empty h2 { color: var(--pub-text); font-size: 1.25rem; margin: 0.5rem 0; }
.pub-empty i { font-size: 2.5rem; color: var(--pub-border-strong); margin-bottom: 1rem; display: block; }
.pub-mixed { background: var(--pub-surface-subtle); border: 1px solid var(--pub-border); border-radius: var(--pub-radius-lg); padding: 1.5rem; }

@media print {
    .no-print, .pub-engagement, .pub-sidebar, .pub-reading-progress { display: none !important; }
}

/* ══════════════════════════════════════
   ARTICLE — premium reading experience
   ══════════════════════════════════════ */
.pub-article { background: var(--pub-surface); border-bottom: 1px solid var(--pub-border); }

.pub-breadcrumbs { padding: 1rem 0 0; max-width: var(--pub-max); margin: 0 auto; }
.pub-breadcrumbs__list {
    display: flex; flex-wrap: wrap; gap: 0.25rem 0.5rem; list-style: none; margin: 0; padding: 0 1.25rem;
    font-size: 0.8125rem; color: var(--pub-text-muted);
}
.pub-breadcrumbs__list li { display: inline-flex; align-items: center; }
.pub-breadcrumbs__list li:not(:last-child)::after { content: '›'; margin-left: 0.5rem; color: var(--pub-border-strong); font-size: 0.75rem; }
.pub-breadcrumbs__list a { color: var(--pub-accent); text-decoration: none; font-weight: 500; }
.pub-breadcrumbs__list a:hover { text-decoration: underline; }
.pub-breadcrumbs__list li[aria-current="page"] { color: var(--pub-text-secondary); font-weight: 600; max-width: 20rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.pub-article__header {
    padding: clamp(1.5rem, 4vw, 2.5rem) 0 1.75rem;
    border-bottom: 1px solid var(--pub-border);
    background: linear-gradient(180deg, var(--pub-surface-subtle) 0%, var(--pub-surface) 100%);
}
.pub-article__meta-top { display: flex; flex-wrap: wrap; gap: 0.5rem 0.75rem; align-items: center; margin-bottom: 1rem; font-size: 0.8125rem; }
.pub-article__category, .pub-article__section { color: var(--pub-text-muted); font-weight: 600; }
.pub-article__category::before, .pub-article__section::before { content: '·'; margin-right: 0.75rem; color: var(--pub-border-strong); }
.pub-article__meta-top .pub-badge + .pub-article__category::before { content: none; margin: 0; }
.pub-article__title {
    font-family: var(--pub-font); font-size: clamp(1.875rem, 4.5vw, 2.75rem);
    font-weight: 800; line-height: 1.1; color: var(--pub-text);
    margin: 0 0 1rem; letter-spacing: -0.03em; max-width: 48rem;
}
.pub-article__dek {
    font-size: clamp(1.0625rem, 2vw, 1.25rem); color: var(--pub-text-secondary);
    line-height: 1.6; max-width: 42rem; margin: 0 0 1.5rem; font-weight: 400;
}
.pub-article__byline { display: flex; gap: 0.875rem; align-items: center; }
.pub-article__avatar { width: 3rem; height: 3rem; border-radius: 9999px; object-fit: cover; border: 2px solid var(--pub-border); }
.pub-article__avatar--placeholder {
    display: flex; align-items: center; justify-content: center;
    background: var(--pub-accent); color: #fff; font-weight: 700; font-size: 1.125rem;
}
.pub-article__author { font-weight: 700; color: var(--pub-text); text-decoration: none; font-size: 0.9375rem; }
.pub-article__author:hover { color: var(--pub-accent); text-decoration: underline; }
.pub-article__stats { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; font-size: 0.8125rem; color: var(--pub-text-muted); margin-top: 0.25rem; }
.pub-article__stats i { margin-right: 0.25rem; opacity: 0.85; }

.pub-article__hero-media { margin: 0; background: #000; }
.pub-article__hero-img { width: 100%; max-height: min(56vh, 520px); object-fit: cover; display: block; margin: 0 auto; }

.pub-article__body { padding: clamp(1.75rem, 4vw, 2.75rem) 0 clamp(2rem, 5vw, 3.5rem); }
.pub-article__content-wrap { max-width: var(--pub-content-width); margin: 0 auto; padding: 0 0.25rem; }

.pub-ai-summary {
    background: linear-gradient(135deg, var(--pub-accent-soft), color-mix(in srgb, #8b5cf6 8%, #fff));
    border: 1px solid color-mix(in srgb, var(--pub-accent) 25%, var(--pub-border));
    border-radius: var(--pub-radius-lg); padding: 1.25rem 1.5rem; margin-bottom: 2rem;
}
.pub-ai-summary h2 { font-size: 0.8125rem; font-weight: 800; margin: 0 0 0.625rem; color: var(--pub-text); text-transform: uppercase; letter-spacing: 0.05em; }
.pub-ai-summary p { color: var(--pub-text-secondary); line-height: 1.65; margin: 0; font-size: 0.9375rem; }
.pub-ai-summary__tags { display: flex; flex-wrap: wrap; gap: 0.375rem; margin-top: 0.75rem; }
.pub-ai-summary__tags span { background: var(--pub-surface); padding: 0.2rem 0.625rem; border-radius: 9999px; font-size: 0.75rem; color: var(--pub-accent); font-weight: 600; border: 1px solid var(--pub-border); }

/* Article body typography */
.pub-article__content {
    font-family: var(--pub-font-reading); font-size: 1.0625rem; line-height: var(--pub-line-height);
    color: var(--pub-text-secondary); letter-spacing: 0.01em;
}
.pub-article__content > *:first-child { margin-top: 0; }
.pub-article__content h1, .pub-article__content h2, .pub-article__content h3, .pub-article__content h4, .pub-article__content h5 {
    font-family: var(--pub-font); font-weight: 800; color: var(--pub-text);
    scroll-margin-top: calc(var(--pub-sticky-top) + 2rem); letter-spacing: -0.02em;
}
.pub-article__content h2 { font-size: 1.625rem; margin: 2.25rem 0 0.875rem; line-height: 1.25; }
.pub-article__content h3 { font-size: 1.3125rem; margin: 1.75rem 0 0.75rem; line-height: 1.3; }
.pub-article__content h4 { font-size: 1.125rem; margin: 1.5rem 0 0.625rem; }
.pub-article__content p { margin: 0 0 1.375rem; }
.pub-article__content a {
    color: var(--pub-accent); text-decoration: underline; text-underline-offset: 3px;
    text-decoration-thickness: 1px; font-weight: 500;
}
.pub-article__content a:hover { color: var(--pub-accent-hover); text-decoration-thickness: 2px; }
.pub-article__content strong, .pub-article__content b { color: var(--pub-text); font-weight: 700; }
.pub-article__content img { max-width: 100%; height: auto; border-radius: var(--pub-radius); margin: 1.75rem 0; display: block; box-shadow: var(--pub-shadow-sm); }
.pub-article__content ul, .pub-article__content ol { margin: 0 0 1.375rem; padding-left: 1.5rem; }
.pub-article__content li { margin-bottom: 0.5rem; }
.pub-article__content li::marker { color: var(--pub-accent); }
.pub-article__content blockquote {
    font-family: var(--pub-font-reading); font-size: 1.125rem; font-style: italic;
    border-left: 4px solid var(--pub-accent); margin: 1.75rem 0; padding: 1rem 0 1rem 1.25rem;
    color: var(--pub-text-secondary); background: var(--pub-surface-subtle);
    border-radius: 0 var(--pub-radius) var(--pub-radius) 0;
}
.pub-article__content blockquote p:last-child { margin-bottom: 0; }
.pub-article__content pre {
    background: #0f172a; color: #e2e8f0; padding: 1.125rem 1.25rem;
    border-radius: var(--pub-radius); overflow-x: auto; margin: 1.75rem 0;
    font-size: 0.875rem; line-height: 1.6; font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
    box-shadow: var(--pub-shadow-sm);
}
.pub-article__content code {
    background: var(--pub-surface-subtle); color: #be123c; padding: 0.15rem 0.4rem;
    border-radius: 0.25rem; font-size: 0.875em; font-family: ui-monospace, monospace;
    border: 1px solid var(--pub-border);
}
.pub-article__content pre code { background: transparent; color: inherit; padding: 0; border: none; font-size: inherit; }
.pub-article__content table { width: 100%; border-collapse: collapse; margin: 1.75rem 0; font-size: 0.9375rem; font-family: var(--pub-font); display: block; overflow-x: auto; }
.pub-article__content th, .pub-article__content td { border: 1px solid var(--pub-border); padding: 0.75rem 1rem; text-align: left; min-width: 6rem; }
.pub-article__content th { background: var(--pub-surface-subtle); font-weight: 700; color: var(--pub-text); }
.pub-article__content tr:nth-child(even) td { background: rgb(248 250 252 / 0.6); }
.pub-article__content iframe, .pub-article__content video { max-width: 100%; width: 100%; border-radius: var(--pub-radius); margin: 1.75rem 0; border: none; aspect-ratio: 16/9; }
.pub-article__content audio { width: 100%; margin: 1.75rem 0; border-radius: var(--pub-radius); }
.pub-article__content mark { background: #fef08a; color: var(--pub-text); padding: 0.1rem 0.2rem; border-radius: 0.15rem; }
.pub-article__content hr { border: none; border-top: 1px solid var(--pub-border); margin: 2rem 0; }
.pub-article__content details { margin: 0 0 1.375rem; border: 1px solid var(--pub-border); border-radius: var(--pub-radius); padding: 0.75rem 1rem; background: var(--pub-surface-subtle); }
.pub-article__content summary { cursor: pointer; font-weight: 700; color: var(--pub-text); list-style-position: outside; }
.pub-article__content details[open] summary { margin-bottom: 0.75rem; }
.pub-article__content figure { margin: 1.75rem 0; }
.pub-article__content figcaption { font-size: 0.875rem; color: var(--pub-text-muted); text-align: center; margin-top: 0.625rem; line-height: 1.45; font-family: var(--pub-font); }
.pub-article__content .callout, .pub-article__content .alert, .pub-article__content [class*="callout-"], .pub-article__content [class*="alert-"] {
    border-radius: var(--pub-radius); padding: 1rem 1.25rem; margin: 1.75rem 0;
    border-left: 4px solid var(--pub-accent); background: var(--pub-surface-subtle);
    font-family: var(--pub-font); font-size: 0.9375rem; line-height: 1.6; color: var(--pub-text-secondary);
}
.pub-article__content .callout-info, .pub-article__content .alert-info { border-left-color: #2563eb; background: #eff6ff; }
.pub-article__content .callout-warning, .pub-article__content .alert-warning { border-left-color: #d97706; background: #fffbeb; }
.pub-article__content .callout-success, .pub-article__content .alert-success { border-left-color: #16a34a; background: #f0fdf4; }
.pub-article__content .callout-danger, .pub-article__content .alert-danger { border-left-color: #dc2626; background: #fef2f2; }
.pub-article__content .gallery, .pub-article__content .gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 0.625rem; margin: 1.75rem 0; }
.pub-article__content .gallery img, .pub-article__content .gallery-grid img { margin: 0; width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: var(--pub-radius); }
.pub-article__content .video-embed { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; margin: 1.75rem 0; border-radius: var(--pub-radius); }
.pub-article__content .video-embed iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; margin: 0; }
.pub-article__content .audio-embed { margin: 1.75rem 0; }
.pub-article__content ul.checklist { list-style: none; padding-left: 0; margin: 1.25rem 0; }
.pub-article__content ul.checklist li { position: relative; padding-left: 1.75rem; margin-bottom: 0.5rem; }
.pub-article__content ul.checklist li::before { content: "☐"; position: absolute; left: 0; color: var(--pub-accent); font-weight: 700; }
.pub-article__content .math, .pub-article__content [class*="math"], .pub-article__content .katex-display { overflow-x: auto; margin: 1.5rem 0; }

.pub-article__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 0.625rem;
    align-items: center;
    margin-top: 2.5rem;
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--pub-border);
    background: #f8fafc;
    border-radius: var(--pub-radius-lg);
    overflow: visible;
}
.pub-article__tags-label {
    font-weight: 700;
    color: #64748b;
    margin-right: 0.35rem;
    font-size: 0.8125rem;
    font-family: var(--pub-font);
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}
.pub-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    color: var(--pub-accent);
    padding: 0.45rem 0.95rem;
    border-radius: 9999px;
    font-size: 0.8125rem;
    line-height: 1.3;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid color-mix(in srgb, var(--pub-accent) 28%, #e2e8f0);
    font-family: var(--pub-font);
    transition: background var(--pub-transition), color var(--pub-transition), border-color var(--pub-transition), box-shadow var(--pub-transition);
    box-shadow: 0 1px 2px rgb(15 23 42 / 0.04);
}
.pub-tag:hover {
    background: var(--pub-accent);
    color: #fff;
    border-color: var(--pub-accent);
    box-shadow: 0 2px 8px color-mix(in srgb, var(--pub-accent) 35%, transparent);
}

.pub-author-card {
    display: flex; gap: 1.25rem; margin-top: 2.5rem; padding: 1.5rem 1.75rem;
    background: var(--pub-surface-subtle); border-radius: var(--pub-radius-lg);
    border: 1px solid var(--pub-border); align-items: flex-start;
}
.pub-author-card__avatar { width: 4.5rem; height: 4.5rem; border-radius: 9999px; object-fit: cover; flex-shrink: 0; border: 3px solid var(--pub-surface); box-shadow: var(--pub-shadow-sm); }
.pub-author-card__avatar--placeholder {
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--pub-accent), #6366f1); color: #fff; font-weight: 800; font-size: 1.375rem;
}
.pub-author-card__label { font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--pub-text-muted); margin: 0 0 0.25rem; }
.pub-author-card__name { font-size: 1.125rem; font-weight: 800; color: var(--pub-text); margin: 0 0 0.5rem; }
.pub-author-card__bio { font-size: 0.9375rem; color: var(--pub-text-secondary); line-height: 1.6; margin: 0 0 1rem; }

.pub-article--tech .pub-article__title { font-family: ui-monospace, "Cascadia Code", monospace; letter-spacing: -0.04em; }
.pub-article--research .pub-article__content { font-size: 1.03125rem; }
.pub-article--format-video .pub-article__hero-img,
.pub-article--format-podcast .pub-article__hero-img { max-height: 400px; object-fit: contain; background: #000; }

/* Share modal */
.pub-share-modal { position: fixed; inset: 0; z-index: 9999; display: flex; align-items: center; justify-content: center; background: rgb(15 23 42 / 0.55); padding: 1rem; backdrop-filter: blur(4px); }
.pub-share-modal__panel { background: var(--pub-surface); border-radius: var(--pub-radius-lg); padding: 1.5rem; max-width: 28rem; width: 100%; box-shadow: var(--pub-shadow-lg); border: 1px solid var(--pub-border); }
.pub-share-modal__title { font-size: 1.125rem; font-weight: 800; margin: 0 0 1rem; color: var(--pub-text); }
.pub-share-modal__links { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; }
.pub-share-modal__links a { flex: 1; min-width: 5rem; text-align: center; padding: 0.625rem; border-radius: var(--pub-radius); color: #fff; font-weight: 600; font-size: 0.875rem; text-decoration: none; }
.pub-share-modal__copy { display: flex; gap: 0.5rem; }
.pub-share-modal__copy input { flex: 1; padding: 0.625rem 0.75rem; border: 1px solid var(--pub-border-strong); border-radius: var(--pub-radius); font-size: 0.875rem; color: var(--pub-text); background: var(--pub-surface); }
.pub-share-modal__close { margin-top: 0.75rem; width: 100%; }

/* ── Dark mode ── */
@media (prefers-color-scheme: dark) {
    :root {
        --pub-text: #f1f5f9;
        --pub-text-secondary: #cbd5e1;
        --pub-text-muted: #94a3b8;
        --pub-surface: #1e293b;
        --pub-surface-subtle: #0f172a;
        --pub-bg: #020617;
        --pub-border: #334155;
        --pub-border-strong: #475569;
        --pub-accent-soft: color-mix(in srgb, var(--pub-accent) 20%, #1e293b);
    }
    .pub-page { background: var(--pub-bg); }
    .pub-hero__excerpt { color: #cbd5e1; }
    .pub-filters__search input, .pub-filters__select { background: var(--pub-surface); border-color: var(--pub-border-strong); color: var(--pub-text); }
    .pub-card { background: var(--pub-surface); border-color: var(--pub-border); }
    .pub-card__title a { color: var(--pub-text); }
    .pub-section__title { color: var(--pub-text); }
    .pub-article { background: var(--pub-surface); }
    .pub-article__header { background: linear-gradient(180deg, #0f172a 0%, var(--pub-surface) 100%); }
    .pub-article__content code { background: #0f172a; color: #fda4af; border-color: var(--pub-border); }
    .pub-article__content tr:nth-child(even) td { background: rgb(15 23 42 / 0.5); }
    .pub-article__content th { background: #0f172a; }
    .pub-article__content blockquote { background: #0f172a; }
    .pub-engagement { background: rgb(30 41 59 / 0.95); border-color: var(--pub-border); }
    .pub-engagement__btn { background: var(--pub-surface-subtle); border-color: var(--pub-border); color: var(--pub-text-secondary); }
    .pub-engagement__btn:hover { background: #334155; color: var(--pub-text); }
    .pub-comments, .pub-sidebar__widget, .pub-author-card, .pub-empty, .pub-mixed { background: var(--pub-surface); border-color: var(--pub-border); }
    .pub-comment__body header strong { color: var(--pub-text); }
    .pub-breadcrumbs__list li[aria-current="page"] { color: var(--pub-text-secondary); }
    .pub-pagination .page-link { background: var(--pub-surface); border-color: var(--pub-border); color: var(--pub-text-secondary); }
    .pub-ai-summary { background: linear-gradient(135deg, #0f172a, color-mix(in srgb, var(--pub-accent) 15%, #1e293b)); }
    .pub-share-modal__panel { background: var(--pub-surface); color: var(--pub-text); }
    .pub-share-modal__copy input { background: var(--pub-surface-subtle); border-color: var(--pub-border); color: var(--pub-text); }
    .pub-page .g51-aeo__block { background: var(--pub-surface) !important; border-color: var(--pub-border) !important; }
    .pub-page .g51-aeo__heading { color: var(--pub-text) !important; }
    .pub-page .g51-aeo__text,
    .pub-page .g51-aeo__list li,
    .pub-page .g51-aeo__facts-list dd,
    .pub-page .g51-aeo__faq-item p { color: var(--pub-text-secondary) !important; }
    .pub-page .g51-aeo__faq-item summary { color: var(--pub-text) !important; }
    .pub-page .g51-aeo__meta { color: var(--pub-text-muted) !important; }
    /* Tags stay readable on light strip (fixes dark-mode OS clipping/contrast) */
    .pub-article__tags {
        background: #f8fafc !important;
        border-color: #e2e8f0 !important;
        color-scheme: light;
    }
    .pub-article__tags-label { color: #64748b !important; }
    .pub-tag {
        background: #ffffff !important;
        color: var(--pub-accent) !important;
        border-color: color-mix(in srgb, var(--pub-accent) 28%, #e2e8f0) !important;
    }
    .pub-tag:hover { background: var(--pub-accent) !important; color: #fff !important; }
}

/* ── High contrast ── */
@media (prefers-contrast: more) {
    :root { --pub-border-strong: #64748b; }
    .pub-article__content a { text-decoration-thickness: 2px; }
    .pub-btn--primary, .pub-badge, .pub-tag:hover { outline: 1px solid currentColor; }
    .pub-card { border-width: 2px; }
}

/* ── Accessibility ── */
.pub-btn:focus-visible, .pub-engagement__btn:focus-visible, .pub-filters__search input:focus-visible,
.pub-filters__select:focus-visible, .pub-comments__input:focus-visible,
.pub-breadcrumbs__list a:focus-visible, .pub-card__title a:focus-visible, .pub-sidebar__list a:focus-visible {
    outline: 2px solid var(--pub-accent); outline-offset: 2px;
}
.pub-filters__search input:focus-visible, .pub-filters__select:focus-visible, .pub-comments__input:focus-visible {
    border-color: var(--pub-accent); box-shadow: 0 0 0 3px var(--pub-accent-soft);
}

@media (prefers-reduced-motion: reduce) {
    .pub-btn, .pub-card, .pub-card__image img, .pub-reading-progress { transition: none !important; }
    .pub-card:hover { transform: none; }
}