/**
 * Event Speakers Grid
 * 
 * Responsive grid layout for speaker cards with location-based filtering.
 * Inspired by People Directory card design with 160px circular avatars.
 */

/* ===========================
   Location Tabs (Consolidated)
   =========================== */

.event-speakers {
  margin: var(--spacing-6xl) 0;
}

.event-speakers h2 {
  margin: 0 0 var(--spacing-3xl) 0;
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary-color);
}

.event-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-3xl);
}

.event-tab {
  background-color: var(--color-white);
  color: var(--primary-color);
  border: 2px solid #ddd;
  padding: 10px var(--spacing-lg);
  border-radius: var(--radius-xs);
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-speed) ease;
}

.event-tab:hover {
  opacity: 0.9;
  background-color: #f9f9f9;
}

.event-tab.active {
  background-color: var(--color-white);
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.event-tab:not(.active) {
  background-color: var(--color-white);
  color: #666;
  border-color: #ddd;
}

/* Speaker Location Tabs – align design/behavior with agenda tabs */
.speaker-location-tabs {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: var(--spacing-sm);
  margin: 0 0 var(--spacing-3xl) 0;
  padding: 0;
  box-shadow: none;
}

.speaker-location-tab {
  background: var(--color-gray-200);
  color: var(--color-gray-600);
  font-weight: 700;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
  padding: 10px var(--spacing-xl);
  border: none;
  border-radius: var(--radius-xs);
  outline: none;
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  letter-spacing: 0.5px;
  box-shadow: none;
  max-width: 150px;
  width: auto;
  flex: 0 0 auto;
}

.speaker-location-tab.active {
  background: var(--primary-color);
  color: var(--color-white);
}

.speaker-location-tab:hover {
  opacity: 0.85;
}

/* ===========================
   Grid Layout
   =========================== */

.speaker-location-content {
  display: none;
}

.speaker-location-content.active {
  display: block;
  animation: slideInFromRight 0.4s ease-out;
}

.event-speakers-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: 0;
}

/* Desktop: 4 columns */
@media (min-width: 1476px) {
  .event-speakers-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
  }
}

/* Ultra-wide: 5 columns */
@media (min-width: 1600px) {
  .event-speakers-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-md);
  }
}

/* ===========================
   Speaker Card
   =========================== */

.speaker-card {
  display: flex;
  flex-direction: column;
  background: transparent;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  padding: var(--spacing-md);
  color: inherit;
  transition: all var(--transition-speed) ease;
  height: 100%;
  width: 100%;
  cursor: pointer;
  font: inherit;
}

.speaker-card:hover,
.speaker-card:focus {
  border-color: var(--primary-color);
  box-shadow: 0 4px 12px rgba(var(--primary-color), 0.1);
}

.speaker-card:hover,
.speaker-card:focus,
.speaker-card:active {
  text-decoration: none;
}

/* Speaker avatar container */
.speaker-card-image {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-sm) auto;
  flex-shrink: 0;
  height: 120px;
  width: 120px;
  min-width: 120px;
  max-width: 120px;
}

.speaker-avatar-image {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-circle);
  object-fit: cover;
  border: 2px solid var(--color-border-light);
}

.speaker-avatar-initials {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-circle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.8em;
  color: white;
  background: var(--primary-color);
}

/* Speaker info */
.speaker-card-info {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  width: 100%;
  min-width: 0;
  overflow: hidden;
}

.speaker-card-name {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-gray-900);
  width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  margin: 0;
  text-align: center;
  width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  line-height: 1.3;
}

/* Combined role line: Job title, Company */
.speaker-card-role {
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  text-align: center;
  line-height: 1.4;
}

/* Chinese name rendered inside the h3, after a <br> */
.speaker-card-chinese-name {
  font-size: 0.7em;
  font-weight: 400;
  color: var(--color-gray-600);
  line-height: 1.2;
}

/* Modal metadata section */
.speaker-bio-meta {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border-light);
}

.speaker-bio-job-title {
  font-size: var(--font-size-base);
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.speaker-bio-company {
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
}

/* ===========================
   Responsive Adjustments
   =========================== */

@media (max-width: var(--breakpoint-mobile)) {
  .event-speakers h2 {
    font-size: 24px;
    text-align: center;
  }

  .speaker-card {
    padding: var(--spacing-sm);
  }

  .speaker-avatar-image,
  .speaker-avatar-initials {
    width: 100px;
    height: 100px;
  }

  .speaker-card-image {
    height: 100px;
  }

  .speaker-card-name {
    font-size: var(--font-size-lg);
  }

  .speaker-card-role {
    font-size: var(--font-size-xs);
  }

  .event-tabs {
    gap: var(--spacing-xs);
  }

  .event-tab {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-xs);
  }

}