* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #171717;
  font-family: "Space Grotesk", sans-serif;
  color: #fff;
  animation: pageEnter 0.45s ease forwards;
  transition:
    background 0.3s,
    color 0.3s;
}

@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pageExit {
  to {
    opacity: 0;
    transform: translateY(-14px);
  }
}

body.page-exit {
  animation: pageExit 0.35s ease forwards;
  pointer-events: none;
}

.edu-nav {
  padding: 28px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.75);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.88rem;
  text-decoration: none;
  transition:
    border-color 0.2s,
    background 0.2s,
    color 0.2s;
}

.back-btn:hover {
  border-color: #4ee1a0;
  color: #4ee1a0;
  background: rgba(78, 225, 160, 0.07);
}

.theme-toggle {
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7px;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  transition:
    border-color 0.2s,
    color 0.2s,
    background 0.2s;
}

.theme-toggle:hover {
  border-color: #4ee1a0;
  color: #4ee1a0;
}

.theme-toggle svg {
  width: 16px;
  height: 16px;
}

.icon-moon {
  display: none;
}

.edu-main {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 48px 100px;
}

.edu-hero {
  margin-bottom: 60px;
}

.edu-eyebrow {
  font-size: 0.78rem;
  color: #4ee1a0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 14px;
}

.edu-heading {
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  font-weight: 700;
  line-height: 1.08;
  margin-bottom: 16px;
}

.edu-heading span {
  color: #4ee1a0;
}

.edu-sub {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.65;
  max-width: 480px;
}

.edu-cards {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.edu-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 16px;
  padding: 28px 32px;
  transition:
    border-color 0.25s,
    background 0.25s,
    transform 0.25s;
}

.edu-card:hover {
  border-color: rgba(78, 225, 160, 0.22);
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-2px);
}

.edu-card--current {
  border-color: rgba(78, 225, 160, 0.18);
}

.edu-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 4px;
  flex-wrap: wrap;
}

.edu-card-left {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.edu-badge-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.edu-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  padding: 3px 11px;
  border-radius: 20px;
}

.edu-badge--cs {
  background: rgba(78, 225, 160, 0.12);
  color: #4ee1a0;
  border: 1px solid rgba(78, 225, 160, 0.25);
}

.edu-badge--as {
  background: rgba(78, 155, 225, 0.12);
  color: #4e9be1;
  border: 1px solid rgba(78, 155, 225, 0.25);
}

.edu-current-tag {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  padding: 3px 11px;
  border-radius: 20px;
  background: rgba(78, 225, 160, 0.1);
  color: #4ee1a0;
  border: 1px solid rgba(78, 225, 160, 0.3);
  display: flex;
  align-items: center;
  gap: 5px;
}

.edu-current-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4ee1a0;
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.7);
  }
}

.edu-degree {
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.3;
}

.edu-dates {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
  white-space: nowrap;
  padding-top: 4px;
  font-variant-numeric: tabular-nums;
}

.edu-school {
  font-size: 0.88rem;
  color: #4ee1a0;
  font-weight: 500;
  margin-bottom: 22px;
}

.edu-school span {
  color: rgba(255, 255, 255, 0.35);
  font-weight: 400;
}

.edu-courses-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 12px;
  font-weight: 500;
}

.edu-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.edu-tag {
  font-size: 0.8rem;
  padding: 5px 13px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  color: rgba(255, 255, 255, 0.7);
  transition:
    border-color 0.2s,
    color 0.2s,
    background 0.2s;
}

.edu-card:hover .edu-tag {
  border-color: rgba(78, 225, 160, 0.18);
  color: rgba(255, 255, 255, 0.85);
}

[data-theme="light"] body {
  background: #f0f2f5;
  color: #171717;
}

[data-theme="light"] .back-btn {
  border-color: rgba(0, 0, 0, 0.15);
  color: rgba(0, 0, 0, 0.65);
}

[data-theme="light"] .back-btn:hover {
  border-color: #1a8a5a;
  color: #1a8a5a;
  background: rgba(26, 138, 90, 0.07);
}

[data-theme="light"] .theme-toggle {
  border-color: rgba(0, 0, 0, 0.15);
  color: rgba(0, 0, 0, 0.55);
}

[data-theme="light"] .theme-toggle:hover {
  border-color: #1a8a5a;
  color: #1a8a5a;
}

[data-theme="light"] .icon-sun {
  display: none;
}
[data-theme="light"] .icon-moon {
  display: block;
}

[data-theme="light"] .edu-sub {
  color: rgba(0, 0, 0, 0.5);
}

[data-theme="light"] .edu-card {
  background: rgba(0, 0, 0, 0.03);
  border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .edu-card:hover {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(26, 138, 90, 0.25);
}

[data-theme="light"] .edu-card--current {
  border-color: rgba(26, 138, 90, 0.2);
}

[data-theme="light"] .edu-degree {
  color: #171717;
}

[data-theme="light"] .edu-dates {
  color: rgba(0, 0, 0, 0.4);
}

[data-theme="light"] .edu-school {
  color: #1a8a5a;
}

[data-theme="light"] .edu-school span {
  color: rgba(0, 0, 0, 0.4);
}

[data-theme="light"] .edu-courses-label {
  color: rgba(0, 0, 0, 0.4);
}

[data-theme="light"] .edu-tag {
  background: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 0, 0, 0.1);
  color: rgba(0, 0, 0, 0.65);
}

[data-theme="light"] .edu-card:hover .edu-tag {
  border-color: rgba(26, 138, 90, 0.25);
  color: rgba(0, 0, 0, 0.8);
}

[data-theme="light"] .edu-badge--cs {
  background: rgba(26, 138, 90, 0.1);
  color: #1a8a5a;
  border-color: rgba(26, 138, 90, 0.25);
}

[data-theme="light"] .edu-current-tag {
  background: rgba(26, 138, 90, 0.1);
  color: #1a8a5a;
  border-color: rgba(26, 138, 90, 0.3);
}

[data-theme="light"] .edu-current-tag::before {
  background: #1a8a5a;
}

@media (max-width: 1024px) {
  .edu-main {
    padding: 0 40px 90px;
  }
}

@media (max-width: 900px) {
  .edu-nav {
    padding: 24px 32px;
  }
  .edu-main {
    padding: 0 32px 80px;
  }
  .edu-heading {
    font-size: 2.8rem;
  }
}

@media (max-width: 768px) {
  .edu-nav {
    padding: 20px 24px;
  }
  .edu-main {
    padding: 0 24px 60px;
  }
  .edu-card {
    padding: 22px 24px;
  }
  .edu-heading {
    font-size: 2.4rem;
  }
  .edu-hero {
    margin-bottom: 44px;
  }
}

@media (max-width: 640px) {
  .edu-nav {
    padding: 18px 20px;
  }
  .edu-main {
    padding: 0 16px 60px;
  }
  .edu-card-header {
    flex-direction: column;
  }
  .edu-dates {
    padding-top: 0;
  }
  .edu-card {
    padding: 18px 18px;
  }
}