/* =============================================
   SIDEBAR MODULE
   Blog list sidebar with glass panel
   ============================================= */

.blog-sidebar {
    width: 300px;
    flex-shrink: 0;
    position: sticky;
    top: 120px;
    max-height: calc(100vh - 160px);
    align-self: flex-start;
    flex-direction: column;
}

.blog-sidebar__content {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
    width: 100%;
}

.sidebar__header {
    padding: 20px 22px 12px;
}

.sidebar__title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.sidebar__count {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* --- Search --- */
.sidebar__search {
    padding: 0 12px 8px;
}

.sidebar__search-wrap {
    position: relative;
}

.sidebar__search-icon {
    position: absolute;
    left: 11px;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    color: var(--text-tertiary);
    pointer-events: none;
}

.sidebar__search-input {
    width: 100%;
    padding: 9px 14px 9px 34px;
    background: rgba(255, 255, 255, 0.267);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font-system);
    outline: none;
    transition: all var(--transition-smooth);
}

.sidebar__search-input::placeholder {
    color: var(--text-tertiary);
}

.sidebar__search-input:focus {
    border-color: rgba(180, 205, 255, 0.3);
    background: rgba(255, 255, 255, 0.212);
    box-shadow: 0 0 0 3px rgba(180, 205, 255, 0.08);
}

/* --- List --- */
.sidebar__list {
    flex: 1;
    overflow-y: auto;
    padding: 0 10px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar__list::-webkit-scrollbar {
    width: 3px;
}

.sidebar__list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.119);
    border-radius: 2px;
}

/* --- Sidebar Item --- */
.sidebar-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    border: 1px solid transparent;
}

.sidebar-item:hover {
    background: rgba(255, 255, 255, 0.04);
}

.sidebar-item--active {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.08);
}

.sidebar-item--active::after {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--accent-blue);
    border-radius: 0 2px 2px 0;
    animation: indicatorIn 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes indicatorIn {
    0%   { height: 0; opacity: 0; transform: translateY(-50%) scaleY(0); }
    100% { height: 60%; opacity: 1; transform: translateY(-50%) scaleY(1); }
}

.sidebar-item__thumb {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: border-color var(--transition-smooth);
}

.sidebar-item:hover .sidebar-item__thumb {
    border-color: rgba(255, 255, 255, 0.15);
}

.sidebar-item__info {
    flex: 1;
    min-width: 0;
}

.sidebar-item__title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
    transition: color var(--transition-smooth);
}

.sidebar-item--active .sidebar-item__title {
    color: var(--accent-blue-bright);
}

.sidebar-item__date {
    font-size: 11px;
    color: var(--text-tertiary);
}

.sidebar-item__tag {
    font-size: 10px;
    padding: 2px 7px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-tertiary);
    white-space: nowrap;
    flex-shrink: 0;
}

/* --- Mobile Overlay --- */
@media (max-width: 1024px) {
    .blog-sidebar {
        position: fixed;
        top: 0;
        right: -320px;
        width: 300px;
        height: 100vh;
        max-height: 100vh;
        z-index: 2000;
        padding: 24px 0;
        border-radius: var(--radius-2xl) 0 0 var(--radius-2xl);
        backdrop-filter: blur(60px) saturate(200%);
        -webkit-backdrop-filter: blur(60px) saturate(200%);
        background: rgba(10, 10, 15, 0.92);
        border-left: 1px solid rgba(255, 255, 255, 0.1);
        box-shadow: -8px 0 40px rgba(0, 0, 0, 0.5);
        transition: right 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        overflow-y: auto;
    }

    .blog-sidebar--open {
        right: 0;
    }

    .sidebar-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        z-index: 1999;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .sidebar-overlay--visible {
        opacity: 1;
        pointer-events: all;
    }
}

.sidebar__close {
    display: none;
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-smooth);
}

.sidebar__close:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
}

@media (max-width: 1024px) {
    .sidebar__close {
        display: flex;
    }
}