/* ═══════════════════════════════════════════════════════════════
   EXPERIENCE TABS - Header Integration
   ═══════════════════════════════════════════════════════════════ */

/* Experience nav in header */
.experience-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 0.35rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    margin-left: 2rem;
}

.header.scrolled .experience-nav {
    background: rgba(102, 126, 234, 0.08);
    border-color: rgba(102, 126, 234, 0.15);
}

.exp-nav-tab {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.header.scrolled .exp-nav-tab {
    color: var(--text-secondary, #64748b);
}

.exp-nav-tab:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.header.scrolled .exp-nav-tab:hover {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-blue, #667eea);
}

.exp-nav-tab.active {
    background: white;
    color: var(--primary-blue, #667eea);
    font-weight: 600;
}

.header.scrolled .exp-nav-tab.active {
    background: linear-gradient(135deg, var(--primary-blue, #667eea) 0%, var(--primary-purple, #764ba2) 100%);
    color: white;
}

/* Mobile responsive */
@media (max-width: 1100px) {
    .experience-nav {
        margin-left: 1rem;
    }
    .exp-nav-tab {
        padding: 0.4rem 0.75rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 900px) {
    .experience-nav {
        display: none;
    }
}


/* ═══════════════════════════════════════════════════════════════
   HERO CONTENT CONTAINERS
   ═══════════════════════════════════════════════════════════════ */

/* Hero content wrapper */
#heroContent {
    width: 100%;
    min-height: 70vh;
    display: flex;
    flex-direction: column;
}

/* Tab content sections */
.exp-tab-content {
    animation: expFadeIn 0.4s ease;
    width: 100%;
}

@keyframes expFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}


/* ═══════════════════════════════════════════════════════════════
   HOME TAB (Original Hero)
   ═══════════════════════════════════════════════════════════════ */

.home-content {
    padding: 6rem 2rem 4rem;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.home-content .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    color: white;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.home-content .hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    color: white;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.home-content .hero-title .highlight {
    background: linear-gradient(135deg, var(--accent-mint, #00D26A) 0%, #4ADE80 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.home-content .hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

.home-cta-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

/* Stats in home */
.home-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.home-stat {
    text-align: center;
}

.home-stat-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
}

.home-stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}


/* ═══════════════════════════════════════════════════════════════
   FEED TAB
   ═══════════════════════════════════════════════════════════════ */

.feed-content {
    padding: 6rem 1rem 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

.feed-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 2rem;
    align-items: start;
}

@media (max-width: 1000px) {
    .feed-layout {
        grid-template-columns: 1fr;
    }
    .feed-sidebar {
        display: none;
    }
}

.feed-main {
    min-width: 0;
}


/* ─────────────────────────────────────────
   Events Carousel (Above Feed)
   ───────────────────────────────────────── */

.events-carousel-section {
    margin-bottom: 2rem;
}

.events-carousel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.events-carousel-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin: 0;
}

.events-carousel-title svg {
    width: 22px;
    height: 22px;
    stroke: var(--accent-mint, #00D26A);
}

.events-carousel-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.events-count-badge {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
}

.events-swipe-hint {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    display: none;
}

@media (max-width: 768px) {
    .events-swipe-hint {
        display: block;
    }
}

/* Carousel container */
.events-carousel {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    padding-bottom: 1rem;
    padding-left: 0.5rem;
    padding-right: 1rem;
    -webkit-overflow-scrolling: touch;
}

.events-carousel::-webkit-scrollbar {
    height: 6px;
}

.events-carousel::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.events-carousel::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
}

/* Event card in carousel */
.event-card {
    flex: 0 0 280px;
    scroll-snap-align: start;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.event-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.event-card-cover {
    height: 140px;
    position: relative;
    overflow: hidden;
    border-radius: 12px 12px 0 0;
}

.event-card-cover img {
    display: block;
    border-radius: 12px 12px 0 0;
}

.event-card-cover--fallback {
    background: linear-gradient(135deg, var(--primary-blue, #667eea) 0%, var(--primary-purple, #764ba2) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.event-card-cover--fallback svg {
    width: 40px;
    height: 40px;
    stroke: rgba(255, 255, 255, 0.5);
}

/* Time badge */
.event-time-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Date badge */
.event-date-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: white;
    padding: 6px 10px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.event-date-day {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark, #1a1a2e);
    line-height: 1;
}

.event-date-month {
    display: block;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--primary-blue, #667eea);
    text-transform: uppercase;
}

/* Event card body */
.event-card-body {
    padding: 1rem;
}

.event-card-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark, #1a1a2e);
    margin: 0 0 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.event-card-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.event-meta-avatar {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary-blue, #667eea) 0%, var(--primary-purple, #764ba2) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.event-meta-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.event-meta-avatar svg {
    width: 16px;
    height: 16px;
    stroke: white;
}

.event-meta-info {
    flex: 1;
    min-width: 0;
}

.event-meta-hostel {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dark, #1a1a2e);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.event-meta-location {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    color: var(--text-secondary, #64748b);
}

.event-meta-location svg {
    width: 12px;
    height: 12px;
}

.event-meta-time {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    color: var(--text-secondary, #64748b);
    margin-top: 2px;
}

.event-meta-time svg {
    width: 12px;
    height: 12px;
}

/* Participants row */
.event-participants {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.75rem;
    border-top: 1px solid #f0f0f0;
}

.event-participants-avatars {
    display: flex;
    align-items: center;
}

.event-participants-avatars .participant-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid white;
    margin-left: -8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
}

.event-participants-avatars .participant-avatar:first-child {
    margin-left: 0;
}

.event-participants-avatars .participant-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.event-participants-count {
    font-size: 0.75rem;
    color: var(--text-secondary, #64748b);
    margin-left: 0.5rem;
}

.event-join-btn {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    background: linear-gradient(135deg, var(--primary-blue, #667eea) 0%, var(--primary-purple, #764ba2) 100%);
    color: white;
}

.event-join-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.event-join-btn.joined {
    background: rgba(0, 210, 106, 0.15);
    color: var(--accent-mint, #00D26A);
}


/* ─────────────────────────────────────────
   Posts Feed (Below Events)
   ───────────────────────────────────────── */

.posts-feed-section {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.posts-feed-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.posts-feed-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    margin: 0;
}

.posts-feed-title svg {
    width: 18px;
    height: 18px;
}

.posts-count-badge {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Posts filter chips */
.posts-filter-chips {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.post-filter-chip {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: transparent;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: all 0.2s ease;
}

.post-filter-chip:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

.post-filter-chip.active {
    background: white;
    color: var(--primary-blue, #667eea);
    border-color: white;
}

.post-filter-chip svg {
    width: 14px;
    height: 14px;
}

/* Post card */
.post-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 1rem;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: box-shadow 0.2s ease;
}

.post-card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.post-card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
}

.post-author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary-blue, #667eea) 0%, var(--primary-purple, #764ba2) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.post-author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.post-author-avatar svg {
    width: 20px;
    height: 20px;
    stroke: white;
}

.post-author-info {
    flex: 1;
    min-width: 0;
}

.post-author-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark, #1a1a2e);
    margin-bottom: 2px;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.8rem;
    color: var(--text-secondary, #64748b);
}

.post-type-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
}

.post-type-badge.deal {
    background: rgba(255, 184, 0, 0.15);
    color: #F59E0B;
}

.post-type-badge.activity {
    background: rgba(0, 210, 106, 0.15);
    color: #00D26A;
}

.post-type-badge.urgent {
    background: rgba(239, 68, 68, 0.15);
    color: #EF4444;
}

.post-type-badge.news {
    background: rgba(102, 126, 234, 0.15);
    color: #667eea;
}

.post-card-content {
    padding: 0 1rem;
}

.post-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark, #1a1a2e);
    margin: 0 0 0.5rem;
}

.post-card-text {
    font-size: 0.9rem;
    color: var(--text-secondary, #64748b);
    line-height: 1.6;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-card-image {
    margin-top: 1rem;
    border-radius: 12px;
    overflow: hidden;
    max-height: 300px;
}

.post-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.post-card-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-top: 1px solid #f0f0f0;
}

.post-action-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    border: none;
    background: transparent;
    color: var(--text-secondary, #64748b);
    cursor: pointer;
    transition: all 0.2s ease;
}

.post-action-btn:hover {
    background: #f3f4f6;
    color: var(--primary-blue, #667eea);
}

.post-action-btn svg {
    width: 18px;
    height: 18px;
}


/* ─────────────────────────────────────────
   Feed Sidebar
   ───────────────────────────────────────── */

.feed-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    padding: 1.25rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.sidebar-card-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-dark, #1a1a2e);
    margin: 0 0 1rem;
}

.sidebar-card-title svg {
    width: 18px;
    height: 18px;
    stroke: var(--primary-blue, #667eea);
}

/* Nearby travelers in sidebar */
.sidebar-traveler {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.sidebar-traveler:last-child {
    border-bottom: none;
}

.sidebar-traveler-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
    position: relative;
}

.sidebar-traveler-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sidebar-traveler-online {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 12px;
    height: 12px;
    background: var(--accent-mint, #00D26A);
    border: 2px solid white;
    border-radius: 50%;
}

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

.sidebar-traveler-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark, #1a1a2e);
}

.sidebar-traveler-location {
    font-size: 0.75rem;
    color: var(--text-secondary, #64748b);
}

.sidebar-see-all {
    display: block;
    text-align: center;
    padding: 0.75rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-blue, #667eea);
    text-decoration: none;
    border-radius: 8px;
    margin-top: 0.5rem;
    transition: background 0.2s ease;
}

.sidebar-see-all:hover {
    background: rgba(102, 126, 234, 0.1);
}


/* ═══════════════════════════════════════════════════════════════
   VOLUNTEERING TAB
   ═══════════════════════════════════════════════════════════════ */

.volunteering-content {
    padding: 6rem 1.5rem 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.volunteering-header {
    text-align: center;
    margin-bottom: 2rem;
}

.volunteering-title {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin: 0 0 0.75rem;
}

.volunteering-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

/* Search bar */
.vol-search-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: white;
    padding: 0.75rem 1rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.vol-search-input {
    flex: 1;
    min-width: 200px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border-right: 1px solid #e0e0e0;
}

.vol-search-input:last-child {
    border-right: none;
}

.vol-search-input svg {
    width: 20px;
    height: 20px;
    stroke: var(--text-secondary, #64748b);
    flex-shrink: 0;
}

.vol-search-input input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 0.95rem;
    color: var(--text-dark, #1a1a2e);
}

.vol-search-input input::placeholder {
    color: var(--text-secondary, #64748b);
}

.vol-search-btn {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-blue, #667eea) 0%, var(--primary-purple, #764ba2) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.vol-search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

/* Job type filters */
.vol-filter-chips {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.vol-filter-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
}

.vol-filter-chip:hover {
    background: rgba(255, 255, 255, 0.2);
}

.vol-filter-chip.active {
    background: white;
    color: var(--primary-blue, #667eea);
    border-color: white;
}

.vol-filter-chip svg {
    width: 16px;
    height: 16px;
}

/* Opportunities grid */
.vol-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

/* Opportunity card */
.vol-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.vol-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
}

.vol-card-image {
    height: 160px;
    position: relative;
    overflow: hidden;
}

.vol-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.vol-card-badges {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    gap: 6px;
}

.vol-badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
}

.vol-badge.urgent {
    background: #EF4444;
    color: white;
}

.vol-badge.instant {
    background: var(--accent-mint, #00D26A);
    color: white;
}

.vol-card-location {
    position: absolute;
    bottom: 12px;
    left: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    padding: 6px 12px;
    border-radius: 20px;
    color: white;
    font-size: 0.8rem;
    font-weight: 500;
}

.vol-card-body {
    padding: 1.25rem;
}

.vol-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark, #1a1a2e);
    margin: 0 0 0.5rem;
}

.vol-card-hostel {
    font-size: 0.85rem;
    color: var(--text-secondary, #64748b);
    margin: 0 0 1rem;
}

.vol-card-details {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.vol-detail {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-secondary, #64748b);
}

.vol-detail svg {
    width: 14px;
    height: 14px;
}

.vol-card-perks {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 1rem;
}

.vol-perk {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 15px;
    font-size: 0.75rem;
    color: var(--primary-blue, #667eea);
}

.vol-card-cta {
    width: 100%;
    padding: 0.75rem;
    background: linear-gradient(135deg, var(--primary-blue, #667eea) 0%, var(--primary-purple, #764ba2) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.vol-card-cta:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}


/* ═══════════════════════════════════════════════════════════════
   SOCIAL TAB
   ═══════════════════════════════════════════════════════════════ */

.social-content {
    padding: 6rem 1.5rem 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.social-header {
    text-align: center;
    margin-bottom: 2rem;
}

.social-title {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin: 0 0 0.75rem;
}

.social-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

/* City groups */
.social-groups-section {
    margin-bottom: 2.5rem;
}

.social-section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    margin: 0 0 1rem;
}

.social-section-title svg {
    width: 20px;
    height: 20px;
}

.social-groups-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
}

.social-group-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    padding: 1.25rem;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.social-group-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.social-group-icon {
    width: 64px;
    height: 64px;
    border-radius: 14px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-blue, #667eea) 0%, var(--primary-purple, #764ba2) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.75rem;
    font-size: 1.5rem;
}

.social-group-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.social-group-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark, #1a1a2e);
    margin: 0 0 0.5rem;
}

.social-group-members {
    font-size: 0.85rem;
    color: var(--text-secondary, #64748b);
}

.social-group-btn {
    margin-top: 0.75rem;
    width: 100%;
    padding: 0.6rem;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid var(--primary-blue, #667eea);
    background: transparent;
    color: var(--primary-blue, #667eea);
    cursor: pointer;
    transition: all 0.2s ease;
}

.social-group-btn:hover {
    background: var(--primary-blue, #667eea);
    color: white;
}

/* Travelers nearby */
.social-travelers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

.social-traveler-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    padding: 1.25rem;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.social-traveler-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.social-traveler-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: 0 auto 0.75rem;
    overflow: hidden;
    position: relative;
}

.social-traveler-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.social-traveler-status {
    position: absolute;
    bottom: 4px;
    right: 4px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 3px solid white;
}

.social-traveler-status.online {
    background: var(--accent-mint, #00D26A);
}

.social-traveler-status.away {
    background: #F59E0B;
}

.social-traveler-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark, #1a1a2e);
    margin: 0 0 0.25rem;
}

.social-traveler-location {
    font-size: 0.8rem;
    color: var(--text-secondary, #64748b);
    margin: 0 0 0.5rem;
}

.social-traveler-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 4px;
}

.social-traveler-tag {
    padding: 3px 8px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 10px;
    font-size: 0.7rem;
    color: var(--primary-blue, #667eea);
}

.social-traveler-btn {
    margin-top: 0.75rem;
    width: 100%;
    padding: 0.5rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    border: none;
    background: linear-gradient(135deg, var(--primary-blue, #667eea) 0%, var(--primary-purple, #764ba2) 100%);
    color: white;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.social-traveler-btn:hover {
    transform: scale(1.02);
}

/* Social CTA */
.social-cta-card {
    margin-top: 2.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.social-cta-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin: 0 0 0.75rem;
}

.social-cta-text {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0 0 1.5rem;
}

.social-cta-btn {
    padding: 1rem 2rem;
    background: white;
    color: var(--primary-blue, #667eea);
    border: none;
    border-radius: 14px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.social-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}


/* ═══════════════════════════════════════════════════════════════
   AUTH MODAL
   ═══════════════════════════════════════════════════════════════ */

.auth-modal {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
}

.auth-modal.active {
    display: flex;
}

.auth-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.auth-modal-content {
    position: relative;
    background: white;
    border-radius: 24px;
    padding: 2.5rem;
    max-width: 420px;
    width: 90%;
    text-align: center;
    animation: authModalSlideIn 0.3s ease;
}

@keyframes authModalSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.auth-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: #f3f4f6;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.auth-modal-close:hover {
    background: #e5e7eb;
}

.auth-modal-close svg {
    width: 20px;
    height: 20px;
    stroke: var(--text-secondary, #64748b);
}

.auth-modal-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-blue, #667eea) 0%, var(--primary-purple, #764ba2) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.auth-modal-icon svg {
    width: 36px;
    height: 36px;
    stroke: white;
}

.auth-modal-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark, #1a1a2e);
    margin: 0 0 0.75rem;
}

.auth-modal-header p {
    font-size: 0.95rem;
    color: var(--text-secondary, #64748b);
    line-height: 1.6;
    margin: 0;
}

.auth-modal-actions {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.auth-modal-btn {
    width: 100%;
    justify-content: center;
}

.auth-modal-btn-secondary {
    width: 100%;
    text-align: center;
    font-size: 0.9rem;
}

.auth-modal-note {
    margin-top: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary, #64748b);
}

.auth-modal-note svg {
    width: 14px;
    height: 14px;
    stroke: var(--accent-mint, #00D26A);
}


/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE ADJUSTMENTS
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
    .home-content {
        padding: 5rem 1rem 3rem;
    }
    
    .home-stats {
        gap: 2rem;
    }
    
    .home-stat-value {
        font-size: 2rem;
    }
    
    .feed-content,
    .volunteering-content,
    .social-content {
        padding: 5rem 1rem 2rem;
    }
    
    .events-carousel-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .vol-search-bar {
        flex-direction: column;
    }
    
    .vol-search-input {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #e0e0e0;
        padding-bottom: 0.75rem;
    }
    
    .vol-search-input:last-child {
        border-bottom: none;
    }
    
    .vol-search-btn {
        width: 100%;
    }
    
    .vol-grid {
        grid-template-columns: 1fr;
    }
    
    .social-groups-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .social-travelers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .social-groups-grid,
    .social-travelers-grid {
        grid-template-columns: 1fr;
    }
    
    .event-card {
        flex: 0 0 260px;
    }
}

/* ═══════════════════════════════════════════════════════════════
   NATIONALITY FLAG & PERFORMANCE
   ═══════════════════════════════════════════════════════════════ */

/* Traveler flag badge */
.traveler-flag {
    font-size: 1rem;
    margin-right: 0.25rem;
    display: inline-block;
    vertical-align: middle;
}

.social-traveler-location {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Hostel avatar in post cards — clean round photo */
.post-author-avatar {
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-blue, #667eea) 0%, var(--primary-purple, #764ba2) 100%);
}

.post-author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 50%;
}

/* Hostel avatar in event cards */
.event-meta-avatar {
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-blue, #667eea) 0%, var(--primary-purple, #764ba2) 100%);
}

.event-meta-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Performance: off-screen sections render on demand */
.posts-feed-section,
.social-groups-section,
.social-travelers-section {
    content-visibility: auto;
    contain-intrinsic-size: 0 400px;
}

/* Smooth image fade-in on load */
img {
    transition: opacity 0.3s ease;
}

img[loading="lazy"] {
    opacity: 0;
}

img[loading="lazy"].loaded {
    opacity: 1;
}