/* ============================================================
   COMPONENTS — Nexus AI
   Blog cards, search form, sidebar, error pages, comments, content
   ============================================================ */

/* ---- Blog Grid ---- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-6);
}

.blog-archive__layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-10);
    align-items: start;
}

/* ---- Blog Card ---- */
.blog-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: var(--radius-xl);
}

.blog-card__image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
    display: block;
}

.blog-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card__image img {
    transform: scale(1.05);
}

.blog-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(5,8,17,0.8) 100%);
    pointer-events: none;
}

.blog-card__content {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.blog-card__meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    flex-wrap: wrap;
}

.blog-card__category {
    font-size: var(--text-xs);
    padding: 2px var(--space-3);
    background: rgba(108,99,255,0.1);
    border: 1px solid rgba(108,99,255,0.2);
    border-radius: var(--radius-full);
    color: var(--color-neon-primary);
    font-weight: var(--font-medium);
}

.blog-card__date {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.blog-card__title {
    font-size: var(--text-lg);
    margin-bottom: var(--space-3);
    line-height: 1.4;
}

.blog-card__title a {
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

.blog-card__title a:hover {
    color: var(--color-neon-primary);
}

.blog-card__excerpt {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-4);
    flex: 1;
}

.blog-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-4);
    border-top: 1px solid rgba(255,255,255,0.05);
}

.blog-card__author {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.blog-card__avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
}

.blog-card__readmore {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-neon-primary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    transition: gap var(--transition-fast);
}

.blog-card__readmore:hover {
    gap: var(--space-3);
    color: var(--color-neon-secondary);
}

/* ---- Sidebar ---- */
.sidebar {
    position: sticky;
    top: calc(var(--navbar-height) + var(--space-6));
}

.sidebar .widget {
    padding: var(--space-6);
    margin-bottom: var(--space-6);
}

.sidebar .widget-title {
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
    font-size: var(--text-base);
}

.sidebar__recent-item {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    border-bottom: 1px solid rgba(255,255,255,0.03);
}

.sidebar__recent-thumb {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
}

.sidebar__recent-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sidebar__recent-title {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-primary);
    display: block;
    line-height: 1.4;
}

.sidebar__recent-date {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.sidebar__categories li a {
    display: flex;
    justify-content: space-between;
    padding: var(--space-2) 0;
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    border-bottom: 1px solid rgba(255,255,255,0.03);
    transition: color var(--transition-fast);
}

.sidebar__categories li a:hover {
    color: var(--color-neon-primary);
}

/* ---- Search Form ---- */
.search-form__wrapper {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: var(--space-1) var(--space-2) var(--space-1) var(--space-4);
    transition: border-color var(--transition-fast);
}

.search-form__wrapper:focus-within {
    border-color: var(--color-neon-primary);
}

.search-form__icon {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    margin-left: var(--space-2);
}

.search-form__input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    padding: var(--space-2) var(--space-3);
    color: var(--color-text-primary);
    font-size: var(--text-sm);
}

.search-form__input::placeholder {
    color: var(--color-text-muted);
}

/* ---- Single Post Content ---- */
.single-post__layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--space-10);
    align-items: start;
}

.single-post__content.entry-content {
    font-size: var(--text-lg);
    line-height: 1.9;
}

.entry-content h2 { margin: var(--space-10) 0 var(--space-4); }
.entry-content h3 { margin: var(--space-8) 0 var(--space-3); }
.entry-content p  { margin-bottom: var(--space-6); }
.entry-content ul,.entry-content ol { margin: var(--space-4) 0; padding-right: var(--space-6); }
.entry-content li { margin-bottom: var(--space-2); color: var(--color-text-secondary); }
.entry-content blockquote {
    border-right: 3px solid var(--color-neon-primary);
    padding: var(--space-4) var(--space-6);
    margin: var(--space-6) 0;
    background: rgba(108,99,255,0.05);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--color-text-secondary);
}
.entry-content pre {
    background: var(--color-bg-secondary);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    border: 1px solid var(--color-border);
    margin: var(--space-6) 0;
}
.entry-content code {
    background: rgba(108,99,255,0.1);
    padding: 2px var(--space-2);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.9em;
}
.entry-content img {
    border-radius: var(--radius-lg);
    margin: var(--space-6) 0;
}

.single-post__tags {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
    margin-top: var(--space-10);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

.single-post__tags i { color: var(--color-text-muted); }

.single-post__tag {
    font-size: var(--text-sm);
    padding: var(--space-1) var(--space-3);
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.single-post__tag:hover {
    background: rgba(108,99,255,0.1);
    color: var(--color-neon-primary);
}

/* ---- Author Box ---- */
.author-box {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-8) !important;
    max-width: 700px;
    margin: 0 auto;
}

.author-box__avatar {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    border: 3px solid var(--color-border);
    flex-shrink: 0;
}

.author-box__name { margin-bottom: var(--space-2); }
.author-box__bio { font-size: var(--text-sm); margin-bottom: var(--space-4); }

/* ---- 404 Page ---- */
.error-404__content { text-align: center; max-width: 700px; margin: 0 auto; }
.error-404__graphic { position: relative; margin-bottom: var(--space-8); }
.error-404__number { font-size: clamp(6rem, 15vw, 12rem); font-weight: var(--font-black); display: block; }
.error-404__content h1 { margin-bottom: var(--space-4); }
.error-404__content p { margin-bottom: var(--space-6); font-size: var(--text-lg); }
.error-404__search { max-width: 500px; margin: 0 auto var(--space-6); }
.error-404__actions { display: flex; gap: var(--space-4); justify-content: center; flex-wrap: wrap; }
.error-404__link {
    display: flex; align-items: center; gap: var(--space-2); padding: var(--space-3) var(--space-4);
    color: var(--color-text-secondary); border-radius: var(--radius-md);
    transition: all var(--transition-fast); font-size: var(--text-sm);
}
.error-404__link:hover { color: var(--color-neon-primary); background: rgba(108,99,255,0.05); }
.error-404__link i { color: var(--color-neon-primary); }

/* ---- Comments ---- */
.comment-form { padding: var(--space-8) !important; margin-top: var(--space-8); }
.comment-form__field { margin-bottom: var(--space-4); }
.comment-form__field label { display: block; font-size: var(--text-sm); font-weight: var(--font-medium); margin-bottom: var(--space-2); }
.comment-form__input,.comment-form__textarea {
    width: 100%; padding: var(--space-3) var(--space-4);
    background: rgba(255,255,255,0.05); border: 1px solid var(--color-border);
    border-radius: var(--radius-md); color: var(--color-text-primary);
    font-size: var(--text-sm); outline: none; transition: border-color var(--transition-fast);
}
.comment-form__input:focus,.comment-form__textarea:focus { border-color: var(--color-neon-primary); }
.comment-form__submit { margin-top: var(--space-4); }

/* ---- Page Content ---- */
.page-content { position: relative; z-index: 2; }

/* ---- Responsive ---- */
@media(max-width:1024px){
    .blog-archive__layout,.single-post__layout { grid-template-columns:1fr; }
    .sidebar { position: static; }
    .blog-grid { grid-template-columns: repeat(auto-fill,minmax(280px,1fr)); }
}

@media(max-width:768px){
    .author-box { flex-direction: column; text-align: center; }
}