/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #fcfcfc;
  color: #111111;
  line-height: 1.6;
}

/* Main container — like about.css */
main#main-content {
  width: 100%;
  padding: 2.5rem 0;           /* remove desktop inline gutters to use full width */
  color: #111111;
  box-sizing: border-box;
  scroll-margin-top: 80px;
}

/* Add small inline padding back on smaller viewports */
@media (max-width: 900px) {
  main#main-content { padding-inline: 3vw; } /* logical padding for LTR/RTL */
}
@media (max-width: 600px) {
  main#main-content { padding-inline: 5vw; }
}

/* Education header */
.education-header {
  text-align: center;
  margin-bottom: 4rem;
}

.education-header h2 {
  color: #000000;
  font-weight: 900;
  font-size: 3.2rem;           /* aligned with about.css */
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  position: relative;
  user-select: none;
  cursor: default;
  transition: color 0.3s ease;
}

.education-header h2::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;                 /* underline width aligned with about.css */
  height: 4px;
  background: linear-gradient(90deg, #000000 0%, #333333 100%);
  border-radius: 2px;
}

.education-header h2:hover,
.education-header h2:focus-within { color: #444444; }

.education-subtitle {
  font-size: 1.2rem;
  color: #666666;
  font-style: italic;
  margin-top: 1.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Timeline structure */
.education-timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  padding-block: 0; /* ensure no extra block padding */
  max-width: 1200px;
  margin: 0 auto;
  
}

.education-timeline::before {
  content: '';
  position: absolute;
  left: 40px;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, #000000 0%, #666666 100%);
  border-radius: 2px;
}

/* Timeline items */
.timeline-item {
  position: relative;
  padding-left: 110px;
  margin-bottom: 3.5rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-item:last-child { margin-bottom: 0; }

/* Timeline markers */
.timeline-marker {
  position: absolute;
  left: 0;
  top: 16px;
  width: 80px;
  height: 80px;
  background: #000000;
  border: 4px solid #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
  z-index: 10;
}

.timeline-marker i {
  color: #ffffff;
  font-size: 1.8rem;
}

.timeline-item:hover .timeline-marker,
.timeline-item:focus-within .timeline-marker {
  transform: scale(1.1);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

/* Education content cards */
.education-content {
  background: #ffffff;
  border-radius: 20px;
  padding: clamp(1.5rem, 3vw, 3rem);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  border: 1px solid #e8e8e8;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.education-content::before {
  content: '';
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 6px;
  background: #f0f0f0;
  transition: background 0.3s ease;
}

.timeline-item.featured .education-content::before {
  background: linear-gradient(90deg, #000000 0%, #333333 100%);
}

.timeline-item:hover .education-content,
.timeline-item:focus-within .education-content {
  transform: translateY(-8px);
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
}

/* Institution header */
.institution-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.institution-info h3 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 800;
  color: #000000;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.location {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: #666666;
  font-size: 1rem;
  font-weight: 500;
}

.location i { color: #888888; }

/* Degree badges */
.degree-badge {
  padding: 0.6rem 1.2rem;
  border-radius: 25px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.degree-badge.premier       { background: #000000; color: #ffffff; }
.degree-badge.intermediate  { background: #f0f0f0; color: #333333; border: 2px solid #e0e0e0; }
.degree-badge.foundation    { background: #f8f8f8; color: #555555; border: 1px solid #e8e8e8; }

/* Degree details */
.degree-details {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2.2rem;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.degree-info h4 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #000000;
  margin-bottom: 0.8rem;
}

.duration {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #666666;
  font-weight: 600;
}

.duration i { color: #888888; }

/* Performance metrics */
.performance-metrics {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2rem);
  flex-wrap: wrap;
}

.metric-item { text-align: center; }

.metric-value {
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  font-weight: 900;
  color: #000000;
  margin-bottom: 0.3rem;
}

.metric-label {
  font-size: 0.85rem;
  color: #666666;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.grade-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.9rem;
}

.grade-indicator.excellent  { background: #f0f0f0; color: #333333; }
.grade-indicator.outstanding{ background: #000000; color: #ffffff; }

/* Coursework section */
.coursework-section { margin-bottom: 2rem; }

.coursework-section h5 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #000000;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.coursework-section h5 i { color: #333333; }

.course-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.course-tag {
  background: #f8f8f8;
  color: #333333;
  padding: 0.6rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid #e8e8e8;
  transition: all 0.3s ease;
}

.course-tag.programming:hover { background: #000000; color: #ffffff; transform: translateY(-2px); }
.course-tag.systems:hover     { background: #333333; color: #ffffff; transform: translateY(-2px); }
.course-tag.design:hover      { background: #555555; color: #ffffff; transform: translateY(-2px); }

/* Achievements */
.achievements h5 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #000000;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.achievements h5 i { color: #333333; }

.achievement-list {
  list-style: none;
  padding: 0;
}

.achievement-list li {
  padding: 0.6rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: #444444;
  line-height: 1.6;
  transition: all 0.3s ease;
}

.achievement-list li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: #666666;
  font-size: 0.8rem;
  transition: color 0.3s ease;
}

.achievement-list li:hover { color: #000000; padding-left: 2rem; }
.achievement-list li:hover::before { color: #000000; }

/* Subjects focus */
.subjects-focus h5 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #000000;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.subjects-focus h5 i { color: #333333; }

.subject-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.subject-item {
  background: #f0f0f0;
  color: #444444;
  padding: 0.4rem 0.8rem;
  border-radius: 15px;
  font-size: 0.85rem;
  font-weight: 600;
}

/* Foundation note */
.foundation-note {
  background: #f8f8f8;
  border-left: 4px solid #333333;
  padding: 1rem 1.5rem;
  border-radius: 0 8px 8px 0;
  margin-top: 1.5rem;
}

.foundation-note p {
  color: #555555;
  font-style: italic;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.foundation-note i {
  color: #666666;
  font-size: 1.1rem;
}

/* Education summary */
.education-summary {
  background: linear-gradient(135deg, #f8f8f8 0%, #f0f0f0 100%);
  border-radius: 20px;
  padding: clamp(1.5rem, 4vw, 3rem);
  text-align: center;
  border: 1px solid #e8e8e8;
  max-width: 1200px;
  margin: 50px auto;
  

  
}

.education-summary h3 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 800;
  color: #000000;
  margin-bottom: 2rem;
}

.summary-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); /* intrinsic grid */
  gap: clamp(1rem, 2.5vw, 2rem);
}

.stat-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.stat-icon {
  width: 60px;
  height: 60px;
  background: #000000;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon i { color: #ffffff; font-size: 1.5rem; }

.stat-content { text-align: left; }

.stat-number {
  font-size: 2rem;
  font-weight: 900;
  color: #000000;
  margin-bottom: 0.3rem;
}

.stat-label {
  font-size: 0.9rem;
  color: #666666;
  font-weight: 600;
}

/* Responsive design — unify breakpoints with about.css */
@media (max-width: 900px) {
  .education-header h2 { font-size: clamp(2.2rem, 5vw, 3.2rem); } /* fluid type */
  .education-timeline::before { left: 30px; }
  .timeline-item { padding-left: 90px; }
  .timeline-marker { width: 70px; height: 70px; }
  .timeline-marker i { font-size: 1.5rem; }
  .institution-header { flex-direction: column; align-items: flex-start; }
  .degree-details { flex-direction: column; gap: 1.25rem; }
  .performance-metrics { justify-content: flex-start; }
}

@media (max-width: 600px) {
  .education-header h2 { font-size: 2.5rem; }

  .education-content { padding: 1.5rem; }

  .education-timeline::before { left: 24px; }
  .timeline-item { padding-left: 72px; margin-bottom: 3rem; }
  .timeline-marker { width: 52px; height: 52px; top: 12px; }
  .timeline-marker i { font-size: 1.2rem; }

  .course-tags, .subject-list { justify-content: center; }

  .summary-stats { grid-template-columns: 1fr; gap: 1.25rem; }

  .stat-card { flex-direction: column; text-align: center; gap: 1rem; }
  .stat-content { text-align: center; }
}

/* Focus accessibility */
.timeline-item:focus-visible {
  outline: 3px solid #000000;
  outline-offset: 4px;
  border-radius: 8px;
}

/* Smooth scroll */
html { scroll-behavior: smooth; }