/* ============================================
   POCITS Hub Unified CSS - 3-Panel Grid Layout
   Stream/Directory Toggle Architecture
   Created: 2026-01-18
   ============================================ */

/* =========================================
   HUB INDICATOR LINE
   Colored line below header showing current hub
   ========================================= */
.hub-indicator {
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--hub-color), var(--hub-color-dark));
    position: sticky;
    top: 70px; /* Below header */
    z-index: 99;
    cursor: pointer;
    transition: height 0.2s, box-shadow 0.2s;
}

.hub-indicator:hover {
    height: 5px;
    box-shadow: 0 2px 12px var(--hub-glow);
}

/* =========================================
   MAIN LAYOUT - 3-Panel Grid
   Left sidebar | Main content | Right sidebar
   ========================================= */
.hub-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--space-xl, 24px) var(--space-xl, 24px) var(--space-xl, 24px);
}

.hub-grid {
    display: grid;
    grid-template-columns: 240px 1fr 280px;
    gap: var(--space-xl, 24px);
}

/* =========================================
   LEFT SIDEBAR - Hub Navigation
   ========================================= */
.hub-sidebar {
    padding-top: var(--space-xl, 24px);
    position: sticky;
    top: 73px; /* Below header + indicator */
    max-height: calc(100vh - 73px);
    overflow-y: auto;
}

.hub-sidebar-card {
    background: var(--bg-card, #ffffff);
    padding: var(--space-lg, 16px);
    margin-bottom: var(--space-lg, 16px);
    border-radius: var(--radius-lg, 12px);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0,0,0,0.08));
}

.hub-sidebar-title {
    font-size: 28px;
    font-weight: 300;
    color: var(--hub-color);
    margin-bottom: var(--space-sm, 8px);
    letter-spacing: -0.02em;
}

/* =========================================
   VIEW TOGGLE - Stream / Directory
   ========================================= */
.view-toggle {
    display: flex;
    background: var(--border-light, #F3F4F6);
    border-radius: var(--radius-md, 8px);
    padding: 3px;
    margin-bottom: var(--space-lg, 16px);
}

.view-toggle-btn {
    flex: 1;
    padding: var(--space-sm, 8px) var(--space-md, 12px);
    border: none;
    background: transparent;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted, #6B7280);
    cursor: pointer;
    border-radius: var(--radius-sm, 6px);
    transition: all 0.2s;
}

.view-toggle-btn:hover {
    color: var(--text-primary, #1F2937);
}

.view-toggle-btn.active {
    background: var(--bg-card, #ffffff);
    color: var(--hub-color);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0,0,0,0.08));
}

/* =========================================
   STREAM VIEW - Filter Checkboxes
   ========================================= */
.stream-filters {
    display: block;
}

.filter-section {
    border-top: 1px solid var(--border-light, #F3F4F6);
    padding-top: var(--space-md, 12px);
    margin-top: var(--space-md, 12px);
}

.filter-section:first-child {
    border-top: none;
    padding-top: 0;
    margin-top: 0;
}

.filter-section-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted, #6B7280);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm, 8px);
}

.filter-item {
    display: flex;
    align-items: center;
    padding: 5px 0;
    cursor: pointer;
    font-size: 13px;
}

.filter-item input {
    margin-right: 10px;
    accent-color: var(--hub-color);
    width: 16px;
    height: 16px;
}

/* =========================================
   DIRECTORY VIEW - Category Tree
   ========================================= */
.directory-tree {
    display: none;
}

[data-view="directory"] .stream-filters {
    display: none;
}

[data-view="directory"] .directory-tree {
    display: block;
}

/* Category Section - Collapsible */
.category-section {
    border-bottom: 1px solid var(--border-light, #F3F4F6);
    margin-bottom: var(--space-sm, 8px);
}

.category-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm, 8px) 0;
    cursor: pointer;
    transition: color 0.15s;
}

.category-header:hover {
    color: var(--hub-color);
}

.category-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-sm, 8px);
}

.category-icon {
    font-size: 16px;
    width: 24px;
    text-align: center;
}

.category-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary, #1F2937);
}

.category-count {
    font-size: 11px;
    color: var(--text-muted, #6B7280);
    background: var(--border-light, #F3F4F6);
    padding: 2px 6px;
    border-radius: 10px;
}

.category-toggle {
    font-size: 10px;
    color: var(--text-muted, #6B7280);
    transition: transform 0.2s;
}

.category-header.expanded .category-toggle {
    transform: rotate(180deg);
}

/* Subcategory List */
.subcategory-list {
    display: none;
    padding-left: 32px;
    padding-bottom: var(--space-sm, 8px);
}

.category-header.expanded + .subcategory-list {
    display: block;
}

.subcategory-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-xs, 4px) var(--space-sm, 8px);
    color: var(--text-secondary, #4B5563);
    text-decoration: none;
    font-size: 13px;
    border-radius: var(--radius-sm, 6px);
    transition: all 0.15s;
    cursor: pointer;
}

.subcategory-item:hover {
    background: var(--hub-light);
    color: var(--hub-color);
}

.subcategory-item .count {
    font-size: 11px;
    color: var(--text-muted, #6B7280);
}

/* Level 3 Subcategories */
.l3-list {
    display: none;
    padding-left: var(--space-lg, 16px);
    margin-top: var(--space-xs, 4px);
}

.subcategory-item.expanded + .l3-list {
    display: block;
}

.l3-item {
    display: block;
    padding: var(--space-xs, 4px) var(--space-sm, 8px);
    color: var(--text-muted, #6B7280);
    text-decoration: none;
    font-size: 12px;
    border-radius: var(--radius-sm, 6px);
    transition: all 0.15s;
}

.l3-item:hover {
    background: var(--hub-light);
    color: var(--hub-color);
}

/* =========================================
   MAIN CONTENT AREA
   ========================================= */
.hub-content {
    min-width: 0;
    padding-top: var(--space-xl, 24px);
}

/* Billboard */
.hub-billboard-wrapper {
    position: relative;
    margin-bottom: var(--space-xl, 24px);
}

.hub-billboard {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, var(--hub-color), var(--hub-color-dark));
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg, 12px);
}

.hub-billboard::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.billboard-credit {
    position: absolute;
    bottom: var(--space-sm, 8px);
    right: var(--space-md, 12px);
    background: rgba(0,0,0,0.6);
    color: white;
    padding: var(--space-xs, 4px) var(--space-sm, 8px);
    border-radius: var(--radius-sm, 6px);
    font-size: 11px;
    z-index: 2;
}

/* Place Info Bar */
.place-info-bar {
    display: flex;
    align-items: flex-start;
    padding-top: var(--space-md, 12px);
    gap: var(--space-md, 12px);
}

.place-avatar {
    width: 100px;
    height: 100px;
    border: 4px solid var(--bg-card, #ffffff);
    border-radius: var(--radius-lg, 12px);
    box-shadow: var(--shadow-md, 0 4px 16px rgba(0,0,0,0.1));
    overflow: hidden;
    background: var(--bg-card, #ffffff);
    flex-shrink: 0;
    margin-top: -60px;
    margin-left: 10px;
    position: relative;
    z-index: 10;
}

.place-avatar-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--hub-color), var(--hub-color-dark));
    color: white;
    font-size: 32px;
    font-weight: 600;
}

.place-text-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm, 8px);
    padding-top: var(--space-xs, 4px);
    flex: 1;
}

.place-display-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary, #1F2937);
    display: flex;
    align-items: center;
    gap: var(--space-xs, 4px);
}

.verified-badge {
    width: 18px;
    height: 18px;
    color: #3B82F6;
}

.place-title {
    font-size: 16px;
    color: var(--text-secondary, #4B5563);
}

/* Search Bar */
.hub-search-bar {
    display: flex;
    gap: var(--space-md, 12px);
    margin-bottom: var(--space-xl, 24px);
}

.hub-search-input {
    flex: 1;
    padding: var(--space-md, 12px) var(--space-lg, 16px);
    border: 1px solid var(--border-medium, #E5E7EB);
    border-radius: var(--radius-md, 8px);
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.hub-search-input:focus {
    outline: none;
    border-color: var(--hub-color);
    box-shadow: 0 0 0 3px var(--hub-glow);
}

.hub-search-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm, 8px);
    background: linear-gradient(135deg, var(--hub-color), var(--hub-color-dark));
    color: white;
    border: none;
    padding: var(--space-md, 12px) var(--space-xl, 24px);
    border-radius: var(--radius-md, 8px);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.hub-search-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--hub-glow);
}

/* =========================================
   STREAM VIEW - Post Grid (3 columns masonry)
   ========================================= */
.stream-content {
    display: block;
}

.post-grid {
    column-count: 3;
    column-gap: var(--space-lg, 16px);
}

.post-grid > * {
    break-inside: avoid;
    margin-bottom: var(--space-lg, 16px);
}

/* Post Composer */
.post-composer {
    background: var(--bg-card, #ffffff);
    border-radius: var(--radius-lg, 12px);
    padding: var(--space-xs, 4px);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0,0,0,0.08));
    display: flex;
    flex-direction: column;
    gap: var(--space-xs, 4px);
}

.composer-input {
    width: 100%;
    border: none;
    font-size: 13px;
    padding: var(--space-sm, 8px);
    background: var(--bg-page, #F8FAFC);
    border-radius: var(--radius-sm, 6px);
    resize: none;
    height: 70px;
    line-height: 1.5;
}

.composer-input:focus { outline: none; }
.composer-input::placeholder { color: var(--text-muted, #6B7280); }

.composer-tools {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xs, 4px);
}

.composer-icons {
    display: flex;
    gap: var(--space-xs, 4px);
}

.composer-tool {
    padding: var(--space-xs, 4px);
    color: var(--text-muted, #6B7280);
    cursor: pointer;
    font-size: 14px;
    border-radius: var(--radius-sm, 6px);
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.composer-tool-label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.composer-tool:hover {
    color: var(--hub-color);
    background: var(--hub-light);
}

.composer-post-btn {
    background: linear-gradient(135deg, var(--hub-color), var(--hub-color-dark));
    color: white;
    border: none;
    padding: var(--space-xs, 4px) var(--space-md, 12px);
    border-radius: var(--radius-sm, 6px);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
}

/* Post Card */
.post-card {
    background: var(--bg-card, #ffffff);
    border-radius: var(--radius-lg, 12px);
    overflow: hidden;
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0,0,0,0.08));
    transition: transform 0.2s, box-shadow 0.2s;
}

.post-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md, 0 4px 16px rgba(0,0,0,0.1));
}

.post-header {
    display: flex;
    align-items: center;
    padding: var(--space-md, 12px);
    gap: var(--space-sm, 8px);
}

.post-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md, 8px);
    background: var(--hub-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.post-meta {
    flex: 1;
}

.post-business {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary, #1F2937);
}

.post-category {
    font-size: 12px;
    color: var(--text-muted, #6B7280);
}

.post-image {
    width: 100%;
    height: 140px;
    background: linear-gradient(135deg, var(--border-light, #F3F4F6), var(--border-medium, #E5E7EB));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted, #6B7280);
    font-size: 14px;
}

.post-content {
    padding: var(--space-md, 12px);
}

.post-text {
    font-size: 13px;
    color: var(--text-secondary, #4B5563);
    margin-bottom: var(--space-sm, 8px);
    line-height: 1.5;
}

.post-actions {
    display: flex;
    gap: var(--space-lg, 16px);
    font-size: 12px;
    color: var(--text-muted, #6B7280);
}

.post-actions span {
    cursor: pointer;
    transition: color 0.2s;
}

.post-actions span:hover {
    color: var(--hub-color);
}

.post-actions .likes {
    color: var(--hub-color);
    font-weight: 500;
}

/* =========================================
   DIRECTORY VIEW - Category Panels
   ========================================= */
.directory-content {
    display: none;
}

[data-view="directory"] .stream-content {
    display: none;
}

[data-view="directory"] .directory-content {
    display: block;
}

.directory-panel {
    background: var(--bg-card, #ffffff);
    border-radius: var(--radius-lg, 12px);
    padding: var(--space-lg, 16px);
    margin-bottom: var(--space-lg, 16px);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0,0,0,0.08));
}

.panel-header {
    display: flex;
    align-items: center;
    gap: var(--space-md, 12px);
    margin-bottom: var(--space-lg, 16px);
    padding-bottom: var(--space-md, 12px);
    border-bottom: 1px solid var(--border-light, #F3F4F6);
}

.panel-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md, 8px);
    background: var(--hub-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.panel-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary, #1F2937);
}

.panel-subtitle {
    font-size: 13px;
    color: var(--text-muted, #6B7280);
}

.panel-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-sm, 8px);
}

.panel-link {
    display: block;
    padding: var(--space-sm, 8px) var(--space-md, 12px);
    color: var(--text-secondary, #4B5563);
    text-decoration: none;
    font-size: 13px;
    border-radius: var(--radius-sm, 6px);
    transition: all 0.15s;
    border: 1px solid transparent;
}

.panel-link:hover {
    background: var(--hub-light);
    color: var(--hub-color);
    border-color: var(--hub-color);
}

.panel-link .count {
    font-size: 11px;
    color: var(--text-muted, #6B7280);
    margin-left: var(--space-xs, 4px);
}

/* =========================================
   RIGHT SIDEBAR - Smartphone-style Vertical Carousel
   ========================================= */
.hub-ads-sidebar {
    padding-top: var(--space-xl, 24px);
    position: sticky;
    top: 73px;
    max-height: calc(100vh - 73px);
    overflow-y: auto;
}

/* Poster Card - Full Image with Text Overlay */
.poster-card {
    position: relative;
    height: 180px;
    border-radius: var(--radius-sm, 6px);
    overflow: hidden;
    margin-bottom: var(--space-sm, 8px);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0,0,0,0.08));
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    background: linear-gradient(135deg, var(--hub-light), var(--border-light, #F3F4F6));
    background-size: cover;
    background-position: center;
}

.poster-card:hover {
    /* Hover effect removed per user request */
}

.poster-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-md, 12px);
    background: linear-gradient(transparent, rgba(0,0,0,0.75));
}

.poster-title {
    font-size: 14px;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 3px rgba(0,0,0,0.8);
    margin-bottom: 2px;
}

.poster-category {
    font-size: 11px;
    color: rgba(255,255,255,0.8);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-shadow: 0 1px 2px rgba(0,0,0,0.6);
}

/* Sidebar Cards */
.hub-sidebar-widget {
    background: var(--bg-card, #ffffff);
    padding: var(--space-lg, 16px);
    margin-bottom: var(--space-lg, 16px);
    border-radius: var(--radius-lg, 12px);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0,0,0,0.08));
}

.hub-sidebar-widget .section-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted, #6B7280);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md, 12px);
}

.compliment-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm, 8px);
    padding: var(--space-sm, 8px) 0;
}

.compliment-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--hub-color), var(--hub-color-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    color: white;
}

.compliment-name {
    font-size: 13px;
    color: var(--text-secondary, #4B5563);
}

.referral-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm, 8px);
    padding: var(--space-sm, 8px) 0;
}

.referral-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--border-medium, #E5E7EB), var(--border-light, #F3F4F6));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted, #6B7280);
}

.referral-info {
    flex: 1;
}

.referral-name {
    font-size: 13px;
    color: var(--text-secondary, #4B5563);
    font-weight: 500;
}

.referral-business {
    font-size: 11px;
    color: var(--text-muted, #6B7280);
}

/* =========================================
   RESPONSIVE - 3-Panel Grid Breakpoints
   ========================================= */

/* Medium desktop - narrower sidebars */
@media (max-width: 1200px) {
    .hub-grid {
        grid-template-columns: 200px 1fr 240px;
    }
    .panel-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Tablet - Hide left sidebar, 2-column layout */
@media (max-width: 1024px) {
    .hub-grid {
        grid-template-columns: 1fr 260px;
    }
    .hub-sidebar {
        display: none;
    }
    .post-grid {
        column-count: 2;
    }
    .panel-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile - Single column, no sidebars */
@media (max-width: 768px) {
    .hub-grid {
        grid-template-columns: 1fr;
    }
    .hub-sidebar, .hub-ads-sidebar {
        display: none;
    }
    .hub-container {
        padding: 0 var(--space-md, 12px) var(--space-md, 12px) var(--space-md, 12px);
    }
    .hub-content {
        padding-top: var(--space-md, 12px);
    }
    .post-grid {
        column-count: 1;
    }
    .panel-links {
        grid-template-columns: 1fr;
    }
    .hub-search-bar {
        flex-direction: column;
    }
    .hub-search-btn {
        width: 100%;
        justify-content: center;
    }
    .place-info-bar {
        flex-direction: column;
        align-items: flex-start;
    }
    .place-avatar {
        margin-top: -40px;
        width: 80px;
        height: 80px;
    }
}