body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 20px;
  background-color: #f0f0f0;
}

h1 {
  text-align: center;
  margin-bottom: 32px;
  font-size: 2.2em;
  letter-spacing: 0.5px;
  color: #1c2437;
}

.video-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  max-width: 1200px;
  margin: 0 auto;
}

.column-header {
  text-align: center;
  font-weight: bold;
  /* background-color: #e7eaf2; */
  padding: 12px 0;
  border-radius: 8px 8px 0 0;
  letter-spacing: 0.3px;
  color: #21305b;
  font-size: 1.1em;
}

.column-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 22px 0 28px 0;
  background: #f8f8fa;
  border-bottom: 1px solid #e3e7ee;
  border-radius: 0 0 12px 12px;
  box-shadow: 0 2px 10px rgba(110,130,190,0.03);
}

/* Victim column has faint blue glow around box */
.video-grid > .column-info:first-of-type {
  box-shadow: 0 0 24px 6px rgba(0, 132, 255, 0.13), 0 2px 10px rgba(110,130,190,0.03);
  border-radius: 12px;
}

/* Remove glow for attacker column box */
.video-grid > .column-info:last-of-type {
  /* Only subtle box-shadow for elevation, no color glow */
  box-shadow: 0 2px 10px rgba(110,130,190,0.03);
  border-radius: 12px;
}

.column-image {
  width: 120px;
  height: 120px;
  margin-bottom: 14px;
  object-fit: contain;
  object-position: center;
  display: block;
  background: transparent;
}

/* PNG/SVG GLOWS */
.victim-glow {
  filter: drop-shadow(0 0 18px rgba(0, 132, 255, 0.45));
}
.attacker-glow {
  filter: drop-shadow(0 0 28px rgba(255, 0, 0, 0.8));
}

.column-desc {
  font-size: 1.09em;
  color: #333d55;
  text-align: center;
  max-width: 340px;
  line-height: 1.6;
  margin: 0 auto;
  padding: 0 8px;
  letter-spacing: 0.1px;
}

.attack-title {
  grid-column: span 2;
  text-align: center;
  font-size: 1.19em;
  margin: 26px 0 10px 0;
  background-color: #e7eaf2;
  color: #1c2437;
  padding: 10px;
  border-radius: 6px;
  font-weight: 600;
  letter-spacing: 0.2px;
  box-shadow: 0 1px 6px rgba(100, 130, 200, 0.05);
}

.controls {
  grid-column: span 2;
  text-align: center;
  margin-bottom: 12px;
}

.controls button {
  padding: 8px 22px;
  font-size: 1em;
  cursor: pointer;
  background: #f4f6fa;
  border: 1px solid #b8c1d6;
  border-radius: 6px;
  font-weight: 500;
  transition: background 0.18s, border 0.18s, box-shadow 0.2s;
  color: #243259;
  outline: none;
  box-shadow: 0 1px 4px rgba(60,80,160,0.08);
}

.controls button:hover,
.controls button:focus {
  background: #dbeafe;
  border-color: #3296fa;
  box-shadow: 0 2px 10px rgba(65, 123, 255, 0.09);
}

.descriptions {
  grid-column: span 2;
  text-align: center;
  margin-bottom: 16px;
  min-height: 2.2em; /* Reserve space for one line, but allow to grow */
  overflow: visible; /* Allow captions to expand */
  position: relative;
}

.sentence-display {
  display: inline-block;
  font-style: italic;
  opacity: 0;
  transition: opacity 0.5s;
  white-space: nowrap;
  min-width: 160px;
  color: #fff;
  background: rgba(0,0,0,0.88);
  padding: 7px 18px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.18);
  font-size: 1.08em;
  font-weight: 500;
  letter-spacing: 0.1px;
}

.sentence-display.show {
  opacity: 1;
}

.hidden-sentences {
  display: none;
}

.video-cell {
  padding: 10px;
  border-radius: 8px;
  background-color: #fff;
  transition: box-shadow 0.3s, border-color 0.3s;
  box-shadow: 0 2px 10px rgba(60,90,160,0.07);
  border: 3px solid transparent; /* Always reserve space for border */
  box-sizing: border-box;
}

.video-cell.victim {
  background-color: #e4f2ff;
}

.video-cell.attacker {
  background-color: #ffe0e0;
}

.highlight {
  border-color: #ff9800; /* Only change color, not width */
  box-shadow: 0 0 14px rgba(255, 152, 0, 0.22);
}

video {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
  background: #000;
}

/* Platform Selector Styles */
.platform-selector-row {
  display: flex;
  justify-content: center;
  gap: 26px;
  margin: 40px 0 34px 0;
}

.platform-card {
  background: #f5f7fa;
  border-radius: 12px;
  padding: 20px 28px 16px 28px;
  box-shadow: 0 2px 8px rgba(70, 80, 130, 0.07);
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: box-shadow 0.18s, border 0.18s, background 0.16s;
  border: 2px solid transparent;
  min-width: 112px;
  user-select: none;
}

.platform-card-img {
  width: 50px;
  height: 50px;
  margin-bottom: 9px;
  object-fit: contain;
  object-position: center;
  display: block;
  background: transparent;
}

.platform-card span {
  font-weight: 600;
  color: #263469;
  font-size: 1.10em;
  margin-top: 2px;
  letter-spacing: 0.18px;
}

.platform-card:hover,
.platform-card.active {
  background: #eaf0ff;
  box-shadow: 0 4px 24px rgba(60,90,180,0.14);
  border: 2.2px solid #447fff;
}

.platform-card.active {
  background: #d6e6ff;
}

.platform-attacks-container {
  margin-top: 12px;
}

.platform-attacks {
  display: none;
  animation: fadeIn 0.4s;
}
.platform-attacks.show {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px);}
  to   { opacity: 1; transform: none;}
}

/* Timeline styles for video progress */
.timeline {
  grid-column: span 2;
  position: relative;
  width: 100%;
  height: 4px;
  background: #e0e0e0;
  margin: 16px 0;
  border-radius: 2px;
  user-select: none;
}
.timeline-bar {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background: #1c8adb;
  width: 0;
  border-radius: 2px;
}
.timeline-pointer {
  position: absolute;
  top: 50%;
  left: 0;
  width: 8px;
  height: 8px;
  background: #1c8adb;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  box-shadow: 0 0 4px rgba(28,138,219,0.7);
}
.timeline-marker {
  position: absolute;
  top: 50%;
  width: 16px;
  height: 16px;
  background: transparent;
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 2;
}
.timeline-marker::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 6px;
  height: 6px;
  background: #888;
  border-radius: 50%;
  transition: background 0.2s, transform 0.2s;
}
.timeline-marker:hover::after {
  background: #1c8adb;
  transform: translate(-50%, -50%) scale(1.5);
}

/* Marker glow animation */
@keyframes marker-glow {
  0% { transform: translate(-50%, -50%) scale(1); background: #888; }
  50% { transform: translate(-50%, -50%) scale(2); background: #1c8adb; }
  100% { transform: translate(-50%, -50%) scale(1); background: #888; }
}
.timeline-marker.active::after {
  animation: marker-glow 0.6s ease-out forwards;
}

.glow-play {
  box-shadow: 0 0 16px 4px #ff9800, 0 2px 10px rgba(255,152,0,0.18);
  border-color: #ff9800 !important;
  background: #fffbe6 !important;
  transition: box-shadow 0.2s, border-color 0.2s, background 0.2s;
}
@media (max-width: 600px) {
  .timeline {
    height: 6px;
    margin: 8px 0 12px 0;
  }
  .timeline-pointer {
    width: 10px;
    height: 12px;
  }
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .video-grid {
    max-width: 98vw;
    gap: 12px;
  }
  .platform-selector-row {
    gap: 10px;
    flex-wrap: wrap;
  }
  .platform-card {
    min-width: 96px;
    padding: 14px 10px 12px 10px;
  }
}

@media (max-width: 600px) {
  .video-grid {
    grid-template-columns: 1fr;
    gap: 7px;
  }
  .attack-title, .controls, .descriptions {
    grid-column: span 1;
  }
  .platform-selector-row {
    gap: 4px;
    margin: 22px 0 18px 0;
  }
  h1 {
    font-size: 1.3em;
  }
  .column-info {
    padding: 13px 0 14px 0;
  }
  .column-desc {
    max-width: 92vw;
    font-size: 0.98em;
  }
}
/* victim-explanation needs to be o of the left video in a different format than the text */
/* .victim-explanation {
  display: block;
  margin: 16px auto 0 auto;    
  width: 100%;
  max-width: 380px;
  background: rgba(255, 255, 255, 0.97);
  padding: 14px 18px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(60,90,160,0.08);
  font-size: 1em;
  color: #333d55;
  text-align: center;
  position: static;          
}

@media (max-width: 600px) {
  .victim-explanation {
    max-width: 98vw;
    font-size: 0.98em;
    padding: 9px 4px;
  }
} */