.mainkeynotes {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: url("../img/keynotes_bg.jpg") no-repeat center center/cover;
  -webkit-clip-path: polygon(0 0, 100% 0, 100% 80%, 0 100%);
  clip-path: polygon(0 0, 100% 0, 100% 80%, 0 100%);
  z-index: -1;
}

.keynotes-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  background-color: rgba(255, 255, 255, 0.9);
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  margin-bottom: 2rem;
}

.section-header {
  text-align: left;
  margin: 2rem;
}

.section-header h1 {
  margin: 10px 5px;
}

/* Intro text */
.keynote-intro {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #eaeaea;
  font-size: 1.1rem;
  line-height: 1.6;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  color: var(--main-gray);
}

/* Keynote speaker cards */
.keynote-card {
  display: flex;
  margin-bottom: 3rem;
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.keynote-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.keynote-image {
  width: 100%;
  max-width: 300px;
  margin: 1rem;
}

.keynote-photo {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  object-fit: cover;
  aspect-ratio: 1 / 1;
  display: block;
}

.keynote-content {
  flex: 1;
  padding: 2rem;
}

.keynote-name {
  color: var(--primary-blue);
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-size: 1.8rem;
}

.keynote-title {
  font-weight: 600;
  color: var(--main-black);
  margin-bottom: 0.25rem;
  font-size: 1.1rem;
}

.keynote-organization {
  color: var(--main-gray);
  font-style: italic;
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.keynote-talk-title {
  color: var(--accent-green);
  margin-bottom: 1.25rem;
  font-size: 1.3rem;
  border-bottom: 2px solid var(--lighter-gray);
  padding-bottom: 0.75rem;
}

.keynote-bio {
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.keynote-bio p {
  margin-bottom: 0.75rem;
}

.keynote-abstract {
  background-color: var(--lighter-blue);
  padding: 1.25rem;
  border-radius: 8px;
  border-left: 4px solid var(--primary-blue);
}

.keynote-abstract h4 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  color: var(--primary-blue);
  font-size: 1.1rem;
}

.keynote-abstract p {
  margin-bottom: 0;
  font-style: italic;
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .keynote-card {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .keynotes-container {
    padding: 1.5rem;
  }

  .keynote-content {
    padding: 1.5rem;
  }

  .keynote-name {
    font-size: 1.6rem;
  }

  .keynote-talk-title {
    font-size: 1.2rem;
  }

  .keynote-image {
    max-width: 200px;
    margin-bottom: 1.5rem;
  }
}

@media (max-width: 480px) {
  .keynotes-container {
    padding: 1rem;
  }

  .keynote-content {
    padding: 1.25rem;
  }

  .keynote-image {
    max-width: 150px;
    margin: 0.7rem;
  }

  .keynote-photo {
    border-radius: 6px;
  }

  .keynote-name {
    font-size: 1.4rem;
  }

  .keynote-title,
  .keynote-organization {
    font-size: 0.9rem;
  }

  .keynote-talk-title {
    font-size: 1.1rem;
  }

  .keynote-abstract {
    padding: 1rem;
  }
}