/* SIDEBAR ────────────────────────────────────────────────────── */
.kpost-sidebar {
    position: -webkit-sticky;
    position: sticky;
    top: calc(var(--navbar-height) + var(--spacing-xl));
    align-self: start;
    height: fit-content;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    width: min(100%, var(--kpost-sidebar-max-width));
    justify-self: start;
}

.kpost-sidebar-widget {
    border: 1px solid rgba(17, 54, 68, 0.08);
    border-radius: 22px;
    overflow: hidden;
    background: linear-gradient(180deg, #ffffff 0%, #fcfbf8 100%);
    box-shadow: 0 16px 34px rgba(17, 54, 68, 0.06);
}

.kpost-sidebar-widget__head {
    padding: 18px 22px;
    font-size: 11px;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: #113644;
    border-bottom: 1px solid rgba(17, 54, 68, 0.08);
    background: linear-gradient(180deg, rgba(17, 54, 68, 0.04), rgba(253, 184, 19, 0.08));
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.kpost-sidebar-widget__head::before {
    content: '';
    width: 3px;
    height: 14px;
    background: var(--color-primary);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.kpost-sidebar-widget__body {
    padding: 20px 22px 22px;
}

.kpost-sidebar-widget--toc {
    background:
        radial-gradient(circle at top right, rgba(253, 184, 19, 0.12), transparent 34%),
        linear-gradient(180deg, #fffef8 0%, #ffffff 100%);
}

.kpost-sidebar-widget--toc .kpost-sidebar-widget__body {
    max-height: min(70vh, 620px);
    overflow: auto;
    scrollbar-width: thin;
}

/* TOC ── */
.kpost-toc {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.kpost-toc__link {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 16px;
    border: 1px solid transparent;
    font-size: var(--font-size-2xl);
    color: var(--color-text-secondary);
    text-decoration: none;
    line-height: 1.55;
    transition: transform var(--transition-fast) ease,
                border-color var(--transition-fast) ease,
                background var(--transition-fast) ease,
                color var(--transition-fast) ease,
                box-shadow var(--transition-fast) ease;
    cursor: pointer;
}

.kpost-toc__link:hover,
.kpost-toc__link--active {
    color: #113644;
}

.kpost-toc__link:hover {
    transform: translateX(3px);
    border-color: rgba(17, 54, 68, 0.08);
    background: rgba(17, 54, 68, 0.035);
}

.kpost-toc__link--active {
    font-weight: var(--font-weight-semibold);
    background: linear-gradient(135deg, rgba(17, 54, 68, 0.08), rgba(62, 194, 207, 0.14));
    border-color: rgba(62, 194, 207, 0.35);
    box-shadow: 0 14px 28px rgba(17, 54, 68, 0.08);
}

.kpost-toc__link--loading {
    opacity: 0.5;
}

.kpost-toc__item--sub .kpost-toc__link {
    padding-left: 34px;
    font-size: var(--font-size-xl);
}

.kpost-toc__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    min-width: 28px;
    height: 28px;
    border-radius: 999px;
    background: rgba(17, 54, 68, 0.06);
    font-size: var(--font-size-md);
    color: rgba(17, 54, 68, 0.7);
    font-weight: var(--font-weight-semibold);
    margin-top: 1px;
}

.kpost-toc__link--active .kpost-toc__num {
    background: linear-gradient(135deg, #113644 0%, #2a8a94 100%);
    color: var(--color-white);
}

/* Author widget ── */
.kpost-author-widget {
    text-align: center;
    padding: var(--spacing-xl);
}

.kpost-author-widget__avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    border: 3px solid var(--color-bg-search);
    box-shadow: var(--shadow-md);
}

.kpost-author-widget__name {
    font-family: 'DM Serif Display', serif;
    font-size: 16px;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.kpost-author-widget__role {
    font-size: var(--font-size-md);
    color: var(--color-primary-dark);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-lg);
}

.kpost-author-widget__bio {
    font-size: var(--font-size-xl);
    color: var(--color-text-light);
    line-height: 1.65;
    margin-bottom: var(--spacing-lg);
}

.kpost-author-widget__follow {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    padding: var(--spacing-sm) var(--spacing-2xl);
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: all var(--transition-fast) ease;
}

.kpost-author-widget__follow:hover {
    background: var(--color-primary-dark);
    box-shadow: var(--shadow-md);
}

/* Trending ── */
.kpost-trending-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.kpost-trending-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border-lightest);
    cursor: pointer;
}

.kpost-trending-item:last-child {
    border-bottom: none;
}

.kpost-trending-item__num {
    font-family: 'DM Serif Display', serif;
    font-size: 22px;
    color: var(--color-text-lightest);
    line-height: 1;
    min-width: 20px;
    font-style: italic;
}

.kpost-trending-item:hover .kpost-trending-item__num {
    color: var(--color-secondary);
}

.kpost-trending-item__title {
    font-size: var(--font-size-xl);
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
    line-height: 1.45;
}

.kpost-trending-item__title a {
    color: inherit;
    text-decoration: none;
}

.kpost-trending-item:hover .kpost-trending-item__title {
    color: var(--color-primary-dark);
}

.kpost-trending-item__sub {
    font-size: var(--font-size-md);
    color: var(--color-text-light);
    margin-top: 2px;
}

/* Newsletter ── */
.kpost-newsletter {
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    text-align: center;
    border-radius: var(--radius-lg);
}

.kpost-newsletter__icon {
    font-size: 28px;
    margin-bottom: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.8);
}

.kpost-newsletter__title {
    font-family: 'DM Serif Display', serif;
    font-size: 16px;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.kpost-newsletter__sub {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: var(--spacing-xl);
    line-height: 1.55;
}

.kpost-newsletter__input {
    width: 100%;
    box-sizing: border-box;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-full);
    border: 1.5px solid rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    font-size: var(--font-size-xl);
    font-family: inherit;
    margin-bottom: var(--spacing-md);
    outline: none;
    transition: border-color var(--transition-fast) ease;
}

.kpost-newsletter__input::placeholder {
    color: rgba(255, 255, 255, 0.55);
}

.kpost-newsletter__input:focus {
    border-color: var(--color-secondary);
}

.kpost-newsletter__btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-full);
    background: var(--color-secondary);
    color: var(--color-black);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: background var(--transition-fast) ease, box-shadow var(--transition-fast) ease;
}

.kpost-newsletter__btn:hover {
    background: var(--color-secondary-dark);
    box-shadow: 0 4px 12px rgba(253, 184, 19, 0.4);
}