/* ─── Insights page ───────────────────────────────────────────────────────── */
main {
    flex: 1;
    padding: 3rem 1rem 4rem;
}

/* ─── Page header ─────────────────────────────────────────────────────────── */
.insights-header {
    border-bottom: 1px solid #2a2a2a;
    padding-bottom: 1.75rem;
    margin-bottom: 2.5rem;
}

.insights-header h1 {
    font-size: 1.75rem;
    font-weight: 300;
    letter-spacing: 0.04em;
    color: #fff;
    margin-bottom: 0.75rem;
}

.insights-header p {
    font-size: 0.95rem;
    color: #999;
    max-width: 62ch;
    line-height: 1.65;
    margin: 0;
}

/* ─── Filter tabs ─────────────────────────────────────────────────────────── */
.filter-tabs {
    margin-bottom: 2rem;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-tabs .btn {
    font-size: 0.78rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    border-radius: 2px;
    padding: 0.3rem 0.85rem;
    border-color: #333;
    color: #999;
    background: transparent;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.filter-tabs .btn:hover {
    border-color: #666;
    color: #ccc;
    background: transparent;
}

.filter-tabs .btn.active {
    border-color: #e6e6e6;
    color: #fff;
    background: transparent;
}

/* ─── Entry list ──────────────────────────────────────────────────────────── */
.entry-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.entry-list li {
    padding: 1.75rem 0;
    border-bottom: 1px solid #1c1c1c;
}

.entry-list li:first-child {
    border-top: 1px solid #1c1c1c;
}

/* Title link */
.entry-title {
    font-size: 1.05rem;
    font-weight: 400;
    color: #fff;
    text-decoration: none;
    letter-spacing: 0.01em;
    line-height: 1.4;
    display: inline-flex;
    align-items: baseline;
    gap: 0.4em;
    margin-bottom: 0.45rem;
    transition: color 0.15s;
}

.entry-title:hover {
    color: #adb5bd;
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: #555;
}

.pdf-icon {
    width: 0.85em;
    height: 0.85em;
    fill: currentColor;
    opacity: 0.45;
    flex-shrink: 0;
    position: relative;
    top: 0.05em;
    transition: opacity 0.15s;
}

.entry-title:hover .pdf-icon {
    opacity: 0.7;
}

/* Description */
.entry-desc {
    font-size: 0.88rem;
    color: #888;
    line-height: 1.6;
    margin-bottom: 0.65rem;
    max-width: 72ch;
}

/* Metadata row */
.entry-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    font-size: 0.78rem;
    color: #555;
}

.entry-meta .author { color: #666; }
.entry-meta .date   { color: #555; }
.entry-meta .read-time { color: #555; }

/* Type badges */
.entry-badge {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.2rem 0.55rem;
    border-radius: 2px;
    font-weight: 400;
    border: 1px solid;
}

.badge-position-paper {
    color: #8fb4d4;
    border-color: #2a4a62;
    background: transparent;
}

.badge-article {
    color: #a8c49a;
    border-color: #2d4a27;
    background: transparent;
}

.badge-excerpt {
    color: #c4b8a0;
    border-color: #4a3d28;
    background: transparent;
}

.badge-book {
    color: #c4a0b8;
    border-color: #4a2840;
    background: transparent;
}

/* ─── Book entry with cover thumbnail ────────────────────────────────────── */
.entry-book {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.entry-book__cover {
    flex-shrink: 0;
    width: 72px;
    display: block;
}

.entry-book__cover img {
    width: 100%;
    display: block;
    border-radius: 2px;
    opacity: 0.9;
    transition: opacity 0.15s;
}

.entry-book__cover:hover img {
    opacity: 1;
}

.entry-book__body {
    flex: 1;
    min-width: 0;
}