/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-pill);
  transition: all var(--transition-base);
  cursor: pointer;
  text-decoration: none;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-science-blue);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: #1557B8;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-science-blue);
  border-color: var(--color-science-blue);
}

.btn-secondary:hover {
  background-color: var(--color-science-blue);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn-secondary-light {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn-secondary-light:hover {
  background-color: var(--color-white);
  color: var(--color-science-blue);
}

.btn-group {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* Badges */
.badge-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  background-color: rgba(29, 105, 217, 0.1);
  color: var(--color-science-blue);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-medium);
}

.badge-light {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
}

/* Cards */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-mercury);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-title {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
}

.card-description {
  color: var(--color-text-light);
  line-height: var(--line-height-body);
}

.card-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--color-mercury);
}

/* Logo Strip */
.logo-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
  opacity: 0.6;
}

.logo-strip img {
  height: 40px;
  width: auto;
  filter: grayscale(100%);
  transition: all var(--transition-base);
}

.logo-strip img:hover {
  filter: grayscale(0%);
  opacity: 1;
}

/* Video Container */
.video-container {
  position: relative;
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background-color: #000;
}

.video-container img {
  width: 100%;
  height: auto;
  display: block;
}

.video-play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background-color: var(--color-science-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: 0 4px 20px rgba(29, 105, 217, 0.4);
}

.video-play-button:hover {
  transform: translate(-50%, -50%) scale(1.1);
  background-color: #1557B8;
}

.video-play-button::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 24px solid var(--color-white);
  border-top: 14px solid transparent;
  border-bottom: 14px solid transparent;
  margin-left: 4px;
}

/* Step Number */
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  min-width: 48px;
  height: 48px;
  aspect-ratio: 1;
  flex-shrink: 0;
  background-color: var(--color-science-blue);
  color: var(--color-white);
  border-radius: 50%;
  font-size: 24px;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
}