/* =========================================
   NEXUS LAYOUT — Topbar, 3-Column Grid, Sidebar
   ========================================= */

/* ── App shell ───────────────────────────── */
.nx-app { min-height: 100vh; }

/* ── Guest topbar (non-logged-in pages) ─── */
.nx-guest-topbar {
    background: var(--nx-card);
    border-bottom: 1px solid var(--nx-border);
    box-shadow: var(--nx-shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--nx-z-topbar);
}
.nx-guest-topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--nx-spacing-md);
    gap: var(--nx-spacing-sm);
}
.nx-guest-topbar-actions { display: flex; align-items: center; gap: var(--nx-spacing-sm); }

/* ── Guest footer ────────────────────────── */
.nx-guest-footer {
    background: var(--nx-bg-secondary);
    border-top: 1px solid var(--nx-border);
    padding: var(--nx-spacing-lg) var(--nx-spacing-md);
    margin-top: 0;
}
.nx-guest-footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}
.nx-guest-footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px 20px;
    margin-bottom: 12px;
}
.nx-guest-footer-links a {
    font-size: 0.8125rem;
    color: var(--nx-text-muted);
    text-decoration: none;
}
.nx-guest-footer-links a:hover { text-decoration: underline; }
.nx-guest-footer-copy { font-size: 0.75rem; color: var(--nx-text-muted); }

/* ── Topbar ──────────────────────────────── */
.nx-topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nx-topbar-height);
    background: var(--nx-card);
    border-bottom: 1px solid var(--nx-border);
    z-index: var(--nx-z-topbar);
    box-shadow: var(--nx-shadow-sm);
}
.nx-topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--nx-spacing-md);
    max-width: 1280px;
    margin: 0 auto;
    gap: var(--nx-spacing-sm);
}

/* Logo */
.nx-logo-link { display: flex; align-items: center; flex-shrink: 0; text-decoration: none; }
.nx-logo-img  { height: 36px; width: auto; }
.nx-logo-text {
    font-size: 1.375rem;
    font-weight: 800;
    color: var(--nx-primary);
    letter-spacing: -0.5px;
}

/* Topbar left group: logo + search side by side */
.nx-topbar-left {
    display: flex;
    align-items: center;
    gap: var(--nx-spacing-sm);
    flex-shrink: 0;
    min-width: 0;
}

/* Search in topbar */
.nx-search-wrap { position: relative; }
.nx-search-input-wrap { position: relative; }
.nx-search-icon {
    position: absolute;
    left: 10px; top: 50%;
    transform: translateY(-50%);
    color: var(--nx-text-muted);
    pointer-events: none;
}
.nx-search-input {
    width: 220px;
    padding: 8px 12px 8px 34px;
    font-size: 0.9375rem;
    background: var(--nx-bg);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius-full);
    color: var(--nx-text-primary);
    outline: none;
    transition: width var(--nx-transition), border-color var(--nx-transition);
}
.nx-search-input:focus { width: 280px; border-color: var(--nx-primary); }
.nx-search-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    width: 320px;
    max-height: 400px;
    overflow-y: auto;
    background: var(--nx-card);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius);
    box-shadow: var(--nx-shadow-md);
    z-index: var(--nx-z-dropdown);
}

/* Center nav tabs */
.nx-topbar-center { display: flex; align-items: center; gap: 4px; }
.nx-nav-tab {
    display: flex; align-items: center; justify-content: center;
    width: 100px; height: 46px;
    border-radius: var(--nx-radius-sm);
    color: var(--nx-text-secondary);
    text-decoration: none;
    transition: background var(--nx-transition), color var(--nx-transition);
    position: relative;
}
.nx-nav-tab:hover { background: var(--nx-bg); color: var(--nx-text-primary); text-decoration: none; }
.nx-nav-tab.is-active { color: var(--nx-primary); }
.nx-nav-tab.is-active::after {
    content: '';
    position: absolute;
    bottom: -5px; left: 0; right: 0;
    height: 3px;
    background: var(--nx-primary);
    border-radius: 2px 2px 0 0;
}

/* Right side */
.nx-topbar-right { display: flex; align-items: center; gap: var(--nx-spacing-sm); }
.nx-topbar-icon-btn {
    position: relative;
    display: flex; align-items: center; justify-content: center;
    width: 40px; height: 40px;
    border-radius: var(--nx-radius-full);
    background: var(--nx-bg);
    color: var(--nx-text-primary);
    border: none;
    cursor: pointer;
    transition: background var(--nx-transition);
    flex-shrink: 0;
    text-decoration: none;
}
.nx-topbar-icon-btn:hover { background: var(--nx-border); text-decoration: none; color: var(--nx-text-primary); }
.nx-topbar-icon-btn .nx-badge { position: absolute; top: -2px; right: -2px; }

/* Notification dropdown */
.nx-notif-btn { position: relative; }
.nx-notif-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 360px;
    max-height: 480px;
    overflow-y: auto;
}
.nx-notif-list { overflow-y: auto; max-height: 360px; }

/* User menu */
.nx-user-menu-wrap { position: relative; }
.nx-user-avatar-btn {
    display: flex; align-items: center; justify-content: center;
    border: none; background: none; cursor: pointer;
    border-radius: var(--nx-radius-full);
    padding: 2px;
    transition: box-shadow var(--nx-transition);
}
.nx-user-avatar-btn:hover { box-shadow: 0 0 0 3px var(--nx-primary-light); }
.nx-user-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 260px;
    padding: 8px 0;
}
.nx-user-menu-profile {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 16px;
    text-decoration: none;
    transition: background var(--nx-transition);
}
.nx-user-menu-profile:hover { background: var(--nx-bg); text-decoration: none; }
.nx-user-menu-profile strong { display: block; color: var(--nx-text-primary); font-weight: 600; }
.nx-user-menu-profile span  { font-size: 0.8125rem; color: var(--nx-primary); }
.nx-logout-item { color: var(--nx-accent) !important; }

/* ── 3-column main layout ────────────────── */
.nx-logged-in .nx-page-wrapper {
    display: grid;
    grid-template-columns: var(--nx-sidebar-left-width) 1fr var(--nx-sidebar-right-width);
    grid-template-areas: "sidebar-left content sidebar-right";
    gap: 0;
    max-width: 1280px;
    margin: var(--nx-topbar-height) auto 0;
    min-height: calc(100vh - var(--nx-topbar-height));
}

.nx-guest .nx-page-wrapper {
    margin-top: 0;
}

/* Left sidebar */
.nx-sidebar-left {
    grid-area: sidebar-left;
    position: sticky;
    top: var(--nx-topbar-height);
    height: calc(100vh - var(--nx-topbar-height));
    overflow-y: auto;
    scrollbar-width: none;
    background: var(--nx-card);
    border-right: 1px solid var(--nx-border-light);
    padding: var(--nx-spacing-md) var(--nx-spacing-sm);
}
.nx-sidebar-left::-webkit-scrollbar { display: none; }

/* Main content area */
.nx-main-content {
    grid-area: content;
    padding: var(--nx-spacing-md) var(--nx-spacing-sm);
    width: 100%;
    min-width: 0;
}

/* Right sidebar */
.nx-sidebar-right {
    grid-area: sidebar-right;
    position: sticky;
    top: var(--nx-topbar-height);
    height: calc(100vh - var(--nx-topbar-height));
    overflow-y: auto;
    scrollbar-width: none;
    background: var(--nx-bg);
    border-left: 1px solid var(--nx-border-light);
    padding: var(--nx-spacing-md) var(--nx-spacing-sm);
}
.nx-sidebar-right::-webkit-scrollbar { display: none; }

.nx-sidebar-inner {
    padding: 0 var(--nx-spacing-sm);
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

/* Footer link row in right sidebar */
.nx-sidebar-footer-links {
    margin-top: auto;
    padding: 14px 4px 6px;
    border-top: 1px solid var(--nx-border-light, #f0f2f5);
}
.nx-footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    margin-bottom: 10px;
}
.nx-footer-links a {
    font-size: 0.73rem;
    font-weight: 500;
    color: var(--nx-text-muted);
    text-decoration: none;
    padding: 5px 8px;
    border-radius: 7px;
    transition: color .15s, background .15s;
}
.nx-footer-links a::after { display: none; }
.nx-footer-links a:not(:last-child)::after { display: none; }
.nx-footer-links a:hover {
    color: var(--nx-primary);
    background: var(--nx-bg-secondary, #f0f2f5);
    text-decoration: none;
}
.nx-footer-copy {
    font-size: 0.69rem;
    color: var(--nx-text-muted);
    opacity: .6;
    text-align: center;
    padding: 6px 0 2px;
    letter-spacing: 0.03em;
}

/* ── Left sidebar nav ────────────────────── */
.nx-sidebar-profile {
    display: flex; align-items: center; gap: 12px;
    padding: 10px;
    border-radius: var(--nx-radius);
    text-decoration: none;
    transition: background var(--nx-transition);
    margin-bottom: var(--nx-spacing-sm);
}
.nx-sidebar-profile:hover { background: var(--nx-bg); text-decoration: none; }
.nx-sidebar-profile-info { overflow: hidden; }
.nx-sidebar-name { font-weight: 600; font-size: 0.9375rem; color: var(--nx-text-primary); display: flex; align-items: center; gap: 4px; }

.nx-sidebar-nav { display: flex; flex-direction: column; gap: 2px; }
.nx-sidebar-link {
    display: flex; align-items: center; gap: 14px;
    padding: 10px 12px;
    border-radius: var(--nx-radius);
    font-size: 0.9375rem; font-weight: 500;
    color: var(--nx-text-primary);
    text-decoration: none;
    transition: background var(--nx-transition);
}
.nx-sidebar-link:hover   { background: var(--nx-bg); text-decoration: none; }
.nx-sidebar-link.is-active { background: var(--nx-primary-light); color: var(--nx-primary); font-weight: 600; }
.nx-sidebar-link svg { flex-shrink: 0; }

.nx-sidebar-footer { margin-top: auto; padding-top: var(--nx-spacing-lg); }
.nx-sidebar-copyright { font-size: 0.75rem; color: var(--nx-text-muted); padding: 8px 12px; }

/* ── Right sidebar widgets ───────────────── */
.nx-widget {
    background: var(--nx-card);
    border-radius: var(--nx-radius);
    border: 1px solid var(--nx-border-light);
    box-shadow: var(--nx-shadow-sm);
    padding: var(--nx-spacing-md);
    margin-bottom: var(--nx-spacing-sm);
}
.nx-widget-title { font-size: 0.9375rem; font-weight: 700; margin-bottom: var(--nx-spacing-md); color: var(--nx-text-secondary); }

/* User list (suggested, friends) */
.nx-user-list       { display: flex; flex-direction: column; gap: var(--nx-spacing-xs); }
.nx-user-list-item  { display: flex; align-items: center; gap: 10px; padding: 6px 0; }
.nx-user-list-avatar { flex-shrink: 0; }
.nx-user-list-info  { flex: 1; min-width: 0; overflow: hidden; }
.nx-user-list-name  { font-size: 0.9rem; font-weight: 600; color: var(--nx-text-primary); display: flex; align-items: center; gap: 3px; text-decoration: none; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
.nx-user-list-name:hover { color: var(--nx-primary); text-decoration: none; }
.nx-user-list-meta  { font-size: 0.8rem; color: var(--nx-text-secondary); display: block; margin-top: 1px; }

/* Group list */
.nx-group-list { display: flex; flex-direction: column; gap: 4px; }
.nx-group-list-item { border-radius: var(--nx-radius-sm); }
.nx-group-list-inner {
    display: flex; align-items: center; gap: 10px;
    padding: 8px;
    border-radius: var(--nx-radius-sm);
    text-decoration: none;
    transition: background var(--nx-transition);
}
.nx-group-list-inner:hover { background: var(--nx-bg); text-decoration: none; }
.nx-group-avatar    { width: 36px; height: 36px; border-radius: var(--nx-radius-sm); object-fit: cover; flex-shrink: 0; }
.nx-group-name      { font-size: 0.9rem; font-weight: 600; color: var(--nx-text-primary); display: block; }
.nx-group-meta      { font-size: 0.8rem; color: var(--nx-text-secondary); }

/* ── No-sidebar full-width layouts ──────── */
.nx-page-full .nx-main-content {
    max-width: 960px;
    padding: var(--nx-spacing-lg);
}

/* ── Container ───────────────────────────── */
.nx-container { max-width: 960px; margin: 0 auto; padding: 0 var(--nx-spacing-md); }

/* ── Mobile nav (hidden on desktop) ─────── */
.nx-mobile-nav { display: none; }

/* ── WordPress admin bar offset ─────────── */
.admin-bar .nx-topbar {
    top: 32px;
}
.admin-bar .nx-logged-in .nx-page-wrapper {
    margin-top: calc(var(--nx-topbar-height) + 32px);
    min-height: calc(100vh - var(--nx-topbar-height) - 32px);
}
.admin-bar .nx-sidebar-left,
.admin-bar .nx-sidebar-right {
    top: calc(var(--nx-topbar-height) + 32px);
    height: calc(100vh - var(--nx-topbar-height) - 32px);
}
@media screen and (max-width: 782px) {
    .admin-bar .nx-topbar { top: 46px; }
    .admin-bar .nx-logged-in .nx-page-wrapper {
        margin-top: calc(var(--nx-topbar-height) + 46px);
        min-height: calc(100vh - var(--nx-topbar-height) - 46px);
    }
    .admin-bar .nx-sidebar-left,
    .admin-bar .nx-sidebar-right {
        top: calc(var(--nx-topbar-height) + 46px);
        height: calc(100vh - var(--nx-topbar-height) - 46px);
    }
}

/* ── Hide WP default sidebar widgets in Nexus right sidebar ── */
.nx-sidebar-right .widget_search,
.nx-sidebar-right .widget_recent_entries,
.nx-sidebar-right .widget_recent_comments,
.nx-sidebar-right .widget_categories,
.nx-sidebar-right .widget_archive,
.nx-sidebar-right .widget_meta,
.nx-sidebar-right .widget_calendar { display: none; }

/* ── Left sidebar profile card ───────────── */
.nx-sidebar-profile-card {
    border-radius: var(--nx-radius);
    overflow: hidden;
    border: 1px solid var(--nx-border);
    background: var(--nx-card);
    margin-bottom: var(--nx-spacing-md);
    box-shadow: var(--nx-shadow-sm);
}
.nx-sidebar-cover-wrap {
    display: block;
    height: 72px;
    text-decoration: none;
}
.nx-sidebar-cover {
    width: 100%;
    height: 72px;
    background: linear-gradient(135deg, #1877F2 0%, #42a5f5 100%);
    background-size: cover;
    background-position: center;
}
.nx-sidebar-card-body {
    padding: 0 14px 14px;
    position: relative;
}
.nx-sidebar-card-avatar {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    border: 3px solid var(--nx-card);
    object-fit: cover;
    display: block;
    margin-top: -29px;
    position: relative;
}
.nx-sidebar-card-name {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--nx-text-primary);
    margin: 6px 0 2px;
    display: flex;
    align-items: center;
    gap: 4px;
    line-height: 1.3;
}
.nx-sidebar-card-sub {
    font-size: 0.8rem;
    color: var(--nx-text-secondary);
    margin: 0 0 6px;
    display: block;
}
.nx-sidebar-card-bio {
    font-size: 0.8125rem;
    color: var(--nx-text-secondary);
    margin: 0 0 10px;
    line-height: 1.4;
}
.nx-sidebar-card-stats {
    display: flex;
    gap: 0;
    border-top: 1px solid var(--nx-border-light);
    padding-top: 10px;
    margin-top: 8px;
}
.nx-sidebar-stat {
    flex: 1;
    text-align: center;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    padding: 4px 2px;
    border-radius: var(--nx-radius-sm);
    transition: background var(--nx-transition);
}
.nx-sidebar-stat:hover { background: var(--nx-bg); text-decoration: none; }
.nx-sidebar-stat strong {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--nx-text-primary);
    line-height: 1;
}
.nx-sidebar-stat span {
    font-size: 0.72rem;
    color: var(--nx-text-muted);
}

/* View Profile button */
.nx-sidebar-view-profile-btn {
    display: block;
    text-align: center;
    padding: 9px 12px;
    border-radius: var(--nx-radius);
    background: var(--nx-bg);
    color: var(--nx-text-primary);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid var(--nx-border);
    margin-bottom: var(--nx-spacing-md);
    transition: background var(--nx-transition), border-color var(--nx-transition);
}
.nx-sidebar-view-profile-btn:hover {
    background: var(--nx-border);
    text-decoration: none;
    color: var(--nx-text-primary);
}

/* ── Right sidebar widget styles ─────────── */
.nx-widget-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}
.nx-widget-title-row h3 {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--nx-text-primary);
    margin: 0;
}
.nx-widget-view-more {
    display: block;
    text-align: center;
    margin-top: 10px;
    padding: 8px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--nx-primary);
    text-decoration: none;
    border-radius: var(--nx-radius-sm);
    transition: background var(--nx-transition);
}
.nx-widget-view-more:hover { background: var(--nx-primary-light); text-decoration: none; }

/* Follow circle button */
.nx-follow-circle-btn {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2px solid var(--nx-primary);
    background: var(--nx-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: background var(--nx-transition), border-color var(--nx-transition);
    padding: 0;
}
.nx-follow-circle-btn:hover { background: #1464d3; border-color: #1464d3; }
.nx-follow-circle-btn.is-following {
    background: var(--nx-bg);
    border-color: var(--nx-border);
    color: var(--nx-text-secondary);
}
.nx-follow-circle-btn.is-following:hover {
    background: #fef2f2;
    border-color: var(--nx-accent);
    color: var(--nx-accent);
}

/* Today's news list */
.nx-news-list { display: flex; flex-direction: column; gap: 12px; }
.nx-news-item  { display: flex; flex-direction: column; gap: 3px; }
.nx-news-item-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--nx-text-primary);
    text-decoration: none;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.nx-news-item-title:hover { color: var(--nx-primary); text-decoration: none; }
.nx-news-item-time {
    font-size: 0.75rem;
    color: var(--nx-text-muted);
}

/* ── Feed post author subtitle ────────────── */
.nx-post-author-row {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}
.nx-post-time-dot {
    color: var(--nx-text-muted);
    font-size: 0.8rem;
}
.nx-post-author-sub {
    display: block;
    font-size: 0.8rem;
    color: var(--nx-text-secondary);
    margin-top: 1px;
}

/* ── Composer more button ─────────────────── */
.nx-composer-more-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: var(--nx-radius);
    border: none;
    background: none;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--nx-text-secondary);
    cursor: pointer;
    transition: background var(--nx-transition);
    white-space: nowrap;
}
.nx-composer-more-btn:hover { background: var(--nx-bg); color: var(--nx-text-primary); }

/* ── App footer (logged-in users) ───────────── */
.nx-app-footer {
    background: var(--nx-bg-secondary, #f0f2f5);
    border-top: 1px solid var(--nx-border, #e4e6eb);
    padding: 20px var(--nx-spacing-md, 16px) 24px;
    margin-top: 0;
}
[data-theme="dark"] .nx-app-footer {
    background: var(--nx-bg-secondary, #18191a);
    border-top-color: var(--nx-border, #3a3b3c);
}
.nx-app-footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
}
.nx-app-footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 4px 18px;
    margin-bottom: 10px;
}
.nx-app-footer-links a {
    font-size: 0.8rem;
    color: var(--nx-text-muted);
    text-decoration: none;
    transition: color .15s;
}
.nx-app-footer-links a:hover { color: var(--nx-text-primary); text-decoration: underline; }
.nx-app-footer-copy {
    font-size: 0.75rem;
    color: var(--nx-text-muted);
    opacity: .75;
}
/* Hide footer on mobile — bottom nav is the navigation there */
@media (max-width: 860px) {
    .nx-app-footer { display: none; }
}