/* ============================================
   iHuB Events Page Styles
   Phase 6: Events Page
   ============================================ */

/* ------------------------------------------
   Filter Bar
   ------------------------------------------ */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  justify-content: center;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--colour-text-secondary);
  background-color: var(--colour-background);
  border: 1px solid var(--colour-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 40px;
}

.filter-btn:hover,
.filter-btn:focus-visible {
  border-color: var(--colour-secondary);
  color: var(--colour-primary);
  outline: none;
}

.filter-btn[aria-pressed="true"] {
  background-color: var(--colour-primary);
  color: var(--colour-text-inverse);
  border-color: var(--colour-primary);
}

.filter-btn[aria-pressed="true"]:hover {
  background-color: var(--colour-primary-light);
  border-color: var(--colour-primary-light);
}

/* ------------------------------------------
   Featured Event
   ------------------------------------------ */
.event-featured {
  display: grid;
  grid-template-columns: 1fr;
  background-color: var(--colour-background);
  border: 1px solid var(--colour-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.event-featured:hover {
  box-shadow: var(--shadow-xl);
}

@media (min-width: 1024px) {
  .event-featured {
    grid-template-columns: 1fr 1fr;
  }
}

.event-featured-image {
  aspect-ratio: 16 / 9;
  background-color: var(--colour-background-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--colour-text-muted);
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--colour-border);
}

@media (min-width: 1024px) {
  .event-featured-image {
    aspect-ratio: auto;
    border-bottom: none;
    border-right: 1px solid var(--colour-border);
  }
}

.event-featured-content {
  padding: var(--space-7);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.event-featured-content .event-category {
  margin-bottom: var(--space-3);
}

.event-featured-content .event-title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
  .event-featured-content .event-title {
    font-size: var(--text-3xl);
  }
}

.event-featured-content .event-description {
  font-size: var(--text-lg);
  margin-bottom: var(--space-6);
}

/* ------------------------------------------
   Event Cards
   ------------------------------------------ */
.event-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background-color: var(--colour-background);
  border: 1px solid var(--colour-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.event-card:hover {
  box-shadow: var(--shadow-lg);
}

.event-image {
  aspect-ratio: 16 / 9;
  background-color: var(--colour-background-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--colour-text-muted);
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--colour-border);
}

.event-content {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.event-category {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--colour-accent-dark);
  margin-bottom: var(--space-2);
}

.event-title {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
  color: var(--colour-primary);
}

.event-description {
  color: var(--colour-text-secondary);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--colour-border);
}

.event-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--colour-text-muted);
}

.event-meta-item svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

/* ------------------------------------------
   Host Section
   ------------------------------------------ */
.host-section {
  background-color: var(--colour-background-alt);
}

.host-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

@media (min-width: 1024px) {
  .host-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.host-visual {
  aspect-ratio: 4 / 3;
  background-color: var(--colour-background);
  border: 1px solid var(--colour-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--colour-text-muted);
  font-size: var(--text-sm);
}

.host-content .section-title {
  font-size: var(--text-2xl);
}

@media (min-width: 768px) {
  .host-content .section-title {
    font-size: var(--text-3xl);
  }
}

/* ------------------------------------------
   Empty State
   ------------------------------------------ */
.events-empty {
  text-align: center;
  padding: var(--space-10) var(--space-5);
  grid-column: 1 / -1;
}

.events-empty-title {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  color: var(--colour-primary);
  margin-bottom: var(--space-3);
}

.events-empty-text {
  color: var(--colour-text-secondary);
  max-width: 400px;
  margin: 0 auto;
}