/* Landing Hero Section Styles */
.landing-hero {
  background: linear-gradient(180deg, #E8EEF7 0%, #F5F7FA 100%);
  padding: 4rem 2rem 5rem;
  margin-bottom: 3rem;
  position: relative;
  overflow: hidden;
}

.hero-container {
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-main-title {
  font-size: 3rem;
  font-weight: 700;
  color: #2D3748;
  text-align: center;
  margin-bottom: 3rem;
  letter-spacing: -1px;
}

.hero-workflow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

/* Workflow Cards */
.workflow-card {
  background: white;
  border-radius: 12px;
  padding: 2.5rem 2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  flex: 1;
  min-width: 280px;
  max-width: 380px;
  text-align: center;
}

.workflow-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.workflow-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  padding: 20px;
}

.workflow-icon i {
  font-size: 36px;
  color: white;
}

/* Icon Stack for Students */
.workflow-icon .icon-stack {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 44px;
}

.workflow-icon .icon-base {
  position: absolute;
  left: 0;
  bottom: 0;
  font-size: 36px;
}

.workflow-icon .icon-accent {
  position: absolute;
  right: 0;
  top: 0;
  font-size: 18px;
  color: #FCD34D;
  transform: translate(25%, -25%);
}

/* Icon colors */
.instructors-icon {
  background: linear-gradient(135deg, #7C3AED 0%, #A78BFA 100%);
}

.guides-icon {
  background: linear-gradient(135deg, #3B82F6 0%, #60A5FA 100%);
}

.students-icon {
  background: linear-gradient(135deg, #2563EB 0%, #60A5FA 100%);
}

.workflow-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: #1F2937;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

.workflow-description {
  font-size: 1.05rem;
  color: #6B7280;
  line-height: 1.6;
  margin: 0;
}

/* Workflow Arrows */
.workflow-arrow {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #CBD5E1;
}

.workflow-arrow i {
  font-size: 32px;
}

/* Feedback Loop */
.feedback-loop {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  padding: 0.75rem 1.25rem;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 24px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.feedback-icon {
  font-size: 20px;
  flex-shrink: 0;
  color: #3B82F6;
}

.feedback-text {
  font-size: 0.95rem;
  color: #6B7280;
  margin: 0;
  font-weight: 400;
}

/* Research Statement */
.research-statement {
  font-size: 1.15rem;
  color: #6B7280;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Why It Works Section */
.why-it-works-section {
  padding: 4rem 2rem;
  background: linear-gradient(180deg, #F5F7FA 0%, #FFFFFF 100%);
}

.why-title {
  font-size: 3rem;
  font-weight: 700;
  color: #2D3748;
  text-align: center;
  margin-bottom: 3rem;
  letter-spacing: -1px;
}

.why-cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto 3rem;
}

.why-card {
  background: white;
  border-radius: 16px;
  padding: 3rem 2rem;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.why-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.why-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, #E0E7FF 0%, #C7D2FE 100%);
}

.why-icon i {
  font-size: 36px;
  color: #5B21B6;
}

.why-icon .icon-rotated {
  transform: rotate(90deg);
}

.prerequisites-icon {
  background: linear-gradient(135deg, #E0E7FF 0%, #C7D2FE 100%);
}

.proficiency-icon {
  background: linear-gradient(135deg, #DBEAFE 0%, #BFDBFE 100%);
}

.remember-icon {
  background: linear-gradient(135deg, #E0E7FF 0%, #C7D2FE 100%);
}

.why-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1F2937;
  margin-bottom: 1rem;
  letter-spacing: -0.3px;
}

.why-card-description {
  font-size: 1rem;
  color: #6B7280;
  line-height: 1.6;
  margin: 0;
}

.vision-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: #5B21B6;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.3s ease;
}

.vision-footer:hover {
  color: #7C3AED;
}

.vision-footer i {
  font-size: 1.5rem;
}

/* Responsive design */
@media (max-width: 1200px) {
  .hero-workflow {
    flex-wrap: wrap;
  }
}

@media (max-width: 992px) {
  .landing-hero {
    padding: 3rem 1.5rem 4rem;
  }

  .hero-main-title {
    font-size: 2.5rem;
    margin-bottom: 2.5rem;
  }

  .workflow-card {
    max-width: 100%;
  }

  .hero-workflow {
    gap: 1.5rem;
  }

  .why-it-works-section {
    padding: 3rem 1.5rem;
  }

  .why-title {
    font-size: 2.5rem;
    margin-bottom: 2.5rem;
  }

  .why-cards-container {
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .hero-main-title {
    font-size: 2rem;
    margin-bottom: 2rem;
  }

  .workflow-card {
    padding: 2rem 1.5rem;
    min-width: 240px;
  }

  .workflow-title {
    font-size: 1.5rem;
  }

  .workflow-description {
    font-size: 0.95rem;
  }

  .workflow-icon {
    width: 60px;
    height: 60px;
    padding: 15px;
  }

  .workflow-icon i {
    font-size: 28px;
  }

  .workflow-icon .icon-stack {
    width: 34px;
    height: 34px;
  }

  .workflow-icon .icon-base {
    font-size: 28px;
  }

  .workflow-icon .icon-accent {
    font-size: 14px;
  }

  .workflow-arrow {
    width: 40px;
    height: 40px;
  }

  .workflow-arrow i {
    font-size: 28px;
  }

  .feedback-loop {
    padding: 1.25rem;
    gap: 0.75rem;
  }

  .feedback-text {
    font-size: 1rem;
  }

  .research-statement {
    font-size: 1rem;
  }

  .why-title {
    font-size: 2rem;
    margin-bottom: 2rem;
  }

  .why-card {
    padding: 2.5rem 1.5rem;
  }

  .why-card-title {
    font-size: 1.3rem;
  }

  .why-card-description {
    font-size: 0.95rem;
  }

  .why-icon {
    width: 70px;
    height: 70px;
  }

  .why-icon i {
    font-size: 32px;
  }
}

@media (max-width: 480px) {
  .landing-hero {
    padding: 2rem 1rem 3rem;
  }

  .hero-main-title {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
  }

  .workflow-card {
    padding: 1.5rem 1.2rem;
    min-width: 100%;
  }

  .workflow-title {
    font-size: 1.3rem;
  }

  .workflow-description {
    font-size: 0.9rem;
  }

  .workflow-icon {
    width: 50px;
    height: 50px;
    padding: 12px;
  }

  .workflow-icon i {
    font-size: 24px;
  }

  .workflow-icon .icon-stack {
    width: 30px;
    height: 30px;
  }

  .workflow-icon .icon-base {
    font-size: 24px;
  }

  .workflow-icon .icon-accent {
    font-size: 12px;
  }

  .workflow-arrow {
    width: 32px;
    height: 32px;
  }

  .workflow-arrow i {
    font-size: 24px;
  }

  .feedback-loop {
    flex-direction: column;
    padding: 1rem;
    text-align: center;
  }

  .feedback-text {
    font-size: 0.95rem;
  }

  .research-statement {
    font-size: 0.95rem;
  }

  .why-it-works-section {
    padding: 2rem 1rem;
  }

  .why-title {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
  }

  .why-cards-container {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .why-card {
    padding: 2rem 1.5rem;
  }

  .why-card-title {
    font-size: 1.2rem;
  }

  .why-card-description {
    font-size: 0.9rem;
  }

  .why-icon {
    width: 60px;
    height: 60px;
  }

  .why-icon i {
    font-size: 28px;
  }

  .vision-footer {
    font-size: 1rem;
  }

  .vision-footer i {
    font-size: 1.3rem;
  }
}