/**
 * ============================================================================
 * EVENTS STYLES - Performance-First Design
 * ============================================================================
 * Uses CSS variables from mainstyles.css
 * Based on blog.css patterns with event-specific additions
 * ============================================================================
 */

/* ==================== EVENTS INDEX PAGE ==================== */

/* Events Cards Grid */
.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

/* Individual Event Card */
.event-card {
    background: var(--background);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--border-color);
    position: relative;
}

.event-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

/* Event Status Badges */
.event-status {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 6px 14px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
}

.status-upcoming {
    background: #10b981;
    color: white;
}

.status-live {
    background: var(--primary-color);
    color: white;
    animation: pulse-live 2s infinite;
}

.status-soldout {
    background: #6b7280;
    color: white;
}

.status-past {
    background: #9ca3af;
    color: white;
}

@keyframes pulse-live {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Featured Badge */
.featured-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    padding: 4px 12px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
}

/* Event Card Image */
.event-card-image {
    position: relative;
    width: 100%;
    height: 200px;
    background: var(--background-dark);
    overflow: hidden;
}

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

.event-card:hover .event-card-image img {
    transform: scale(1.05);
}

/* Fallback for missing images */
.event-card-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-shade) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.event-card-image-placeholder i {
    font-size: 64px;
    color: rgba(255, 255, 255, 0.3);
}

/* Event Card Content */
.event-card-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.event-card-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.event-card-category i {
    font-size: 14px;
}

.event-card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.event-card-excerpt {
    font-size: var(--font-size-sm);
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    flex: 1;
}

/* Event Details Box */
.event-card-details {
    background: var(--background-dark);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.event-detail-row {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: var(--font-size-sm);
    color: var(--text-light);
    margin-bottom: 8px;
}

.event-detail-row:last-child {
    margin-bottom: 0;
}

.event-detail-row i {
    width: 16px;
    color: var(--primary-color);
    text-align: center;
}

/* Capacity/Spots Left */
.event-capacity {
    display: flex;
    align-items: center;
    gap: 8px;
}

.capacity-bar {
    flex: 1;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
}

.capacity-fill {
    height: 100%;
    background: var(--primary-color);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.capacity-text {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    white-space: nowrap;
}

/* Event Card Footer / CTA */
.event-card-footer {
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.event-cta-btn {
    display: block;
    width: 100%;
    padding: 12px 20px;
    background: var(--primary-color);
    color: white;
    text-align: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
}

.event-cta-btn:hover {
    background: var(--primary-shade);
    transform: translateY(-2px);
}

.event-cta-btn.disabled {
    background: #9ca3af;
    cursor: not-allowed;
}

.event-cta-btn.disabled:hover {
    transform: none;
}

/* Category Filter Buttons (same as blog) */
.events-category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    justify-content: center;
}

.category-filter-btn {
    padding: 10px 20px;
    background: var(--background);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-light);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.category-filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: #fef2f2;
}

.category-filter-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.category-filter-btn i {
    margin-right: 6px;
}

/* ==================== SINGLE EVENT PAGE ==================== */

/* Event Hero Section */
.event-hero {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.event-poster {
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.event-poster img {
    width: 100%;
    height: auto;
    display: block;
}

.event-poster-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-shade) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
}

.event-poster-placeholder i {
    font-size: 80px;
    color: rgba(255, 255, 255, 0.3);
}

/* Event Info Sidebar */
.event-info-sidebar {
    background: var(--background);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    position: sticky;
    top: 100px;
    height: fit-content;
}

.event-info-header {
    margin-bottom: var(--spacing-lg);
}

.event-info-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.event-info-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

/* Event Details List */
.event-details-list {
    background: var(--background-dark);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.event-detail-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: var(--spacing-md);
}

.event-detail-item:last-child {
    margin-bottom: 0;
}

.event-detail-icon {
    width: 36px;
    height: 36px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.event-detail-icon i {
    color: white;
    font-size: 14px;
}

.event-detail-text {
    flex: 1;
}

.event-detail-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.event-detail-value {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-dark);
}

/* Register Button */
.event-register-btn {
    display: block;
    width: 100%;
    padding: 16px 24px;
    background: var(--primary-color);
    color: white;
    text-align: center;
    font-size: var(--font-size-lg);
    font-weight: 700;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
    margin-bottom: var(--spacing-md);
}

.event-register-btn:hover {
    background: var(--primary-shade);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Share & Add to Calendar */
.event-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.event-action-btn {
    flex: 1;
    padding: 10px 16px;
    background: var(--background-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-light);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.event-action-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* ==================== EVENT CONTENT SECTIONS ==================== */

/* About Section */
.event-section {
    margin-bottom: var(--spacing-2xl);
}

.event-section-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid var(--primary-color);
}

.event-description {
    font-size: var(--font-size-base);
    line-height: 1.8;
    color: var(--text-light);
}

.event-description h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-dark);
    margin: var(--spacing-lg) 0 var(--spacing-md);
}

.event-description ul {
    margin: var(--spacing-md) 0 var(--spacing-md) var(--spacing-lg);
}

.event-description li {
    margin-bottom: var(--spacing-xs);
}

/* Schedule Section */
.event-schedule {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.schedule-item {
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all var(--transition-fast);
}

.schedule-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.schedule-time {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.schedule-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
}

.schedule-topic {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Registration Section (Google Form Embed) */
.event-registration {
    background: var(--background-dark);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
}

.event-registration iframe {
    border: none;
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
    display: block;
}

/* Related Events */
.related-events {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 2px solid var(--border-color);
}

.related-events h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.related-events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

/* ==================== RESPONSIVE DESIGN ==================== */

@media (max-width: 968px) {
    .event-hero {
        grid-template-columns: 1fr;
    }

    .event-info-sidebar {
        position: static;
    }

    .events-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: var(--spacing-lg);
    }

    .event-schedule {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .events-grid {
        grid-template-columns: 1fr;
    }

    .event-card-image {
        height: 180px;
    }

    .category-filter-btn {
        font-size: var(--font-size-xs);
        padding: 8px 14px;
    }

    .event-schedule {
        grid-template-columns: 1fr;
    }

    .event-actions {
        flex-direction: column;
    }

    .event-info-title {
        font-size: var(--font-size-xl);
    }
}

/* ==================== LOADING & EMPTY STATES ==================== */

.events-loading {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.events-loading i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.events-empty {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.events-empty i {
    font-size: 64px;
    color: var(--border-color);
    margin-bottom: var(--spacing-md);
}

.events-empty h3 {
    font-size: var(--font-size-xl);
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

/* ==================== PERFORMANCE & ACCESSIBILITY ==================== */

.event-card-image img {
    content-visibility: auto;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}