/* ============================================
   EDUCATION · SKILLS · PUBLICATIONS SECTION
   ============================================ */

#education {
  height: 100vh;
  box-sizing: border-box;
  display: flex;
  background: var(--color-bg);
  position: relative;
  transition: background-color 0.8s var(--ease-in-out);
}

/* ── Inverted color scheme ──────────────── */

#education.is-inverted {
  background: #F5F2EB;
}

#education.is-inverted .edu-left {
  border-right-color: #D0CCC2;
}

#education.is-inverted .edu-institution {
  border-top-color: #D0CCC2;
}

#education.is-inverted .edu-school-name,
#education.is-inverted .edu-degree,
#education.is-inverted .edu-inst-name,
#education.is-inverted .edu-inst-meta {
  color: #0A0A0E;
}

#education.is-inverted .edu-achievements li {
  color: #5A5850;
}

#education.is-inverted .skills-section {
  border-bottom-color: #D0CCC2;
}

#education.is-inverted .skills-group-title {
  color: #5A5850;
}

#education.is-inverted .skill-tag {
  color: #0A0A0E;
  border-color: #C0BDB6;
}

#education.is-inverted .pub-entry {
  border-top-color: #D0CCC2;
}

#education.is-inverted .pub-title {
  color: #0A0A0E;
}

#education.is-inverted .pub-meta {
  color: #5A5850;
}

/* ── Left: Education (70%) ──────────────── */

.edu-left {
  width: 70%;
  border-right: 1px solid var(--color-border);
  padding-left: var(--gutter);
  padding-right: var(--gutter);
  padding-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  z-index: 1;
  transition: border-color 0.8s var(--ease-in-out);
}

.edu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
  padding-bottom: var(--space-md);
}

.edu-label {
  font-family: var(--font-mono);
  font-size: calc(var(--text-caption) * 2);
  letter-spacing: 0.25em;
  color: var(--color-accent);
  text-transform: uppercase;
}

.edu-sublabel {
  font-family: var(--font-mono);
  font-size: calc(var(--text-caption) * 2);
  letter-spacing: 0.2em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

/* ── Institution rows ───────────────────── */

.edu-institution {
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1rem 0;
  position: relative;
  cursor: default;
  transition: border-color 0.8s var(--ease-in-out);
}

/* Red + grid overlay — fades in on hover */
.edu-institution::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(-1 * var(--gutter));
  right: calc(-1 * var(--gutter));
  background-color: var(--color-accent);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='65' height='65'%3E%3Cline x1='32' y1='27' x2='32' y2='37' stroke='black' stroke-width='0.8' opacity='0.12'/%3E%3Cline x1='27' y1='32' x2='37' y2='32' stroke='black' stroke-width='0.8' opacity='0.12'/%3E%3C/svg%3E");
  background-size: 65px 65px;
  opacity: 0;
  transition: opacity 0.35s var(--ease-out);
  pointer-events: none;
  z-index: 0;
}

.edu-institution:hover::before {
  opacity: 1;
}

.edu-institution:hover {
  border-top-color: var(--color-accent);
}

.edu-institution:hover + .edu-institution {
  border-top-color: var(--color-cyan);
}

/* Lift all direct content above the overlay */
.edu-institution > * {
  position: relative;
  z-index: 1;
}

.edu-institution--bits {
  flex: 5;   /* 50% */
}

.edu-institution:not(.edu-institution--bits):nth-child(3) {
  flex: 2.5;   /* 25% — DPS Vasant Kunj */
}

.edu-institution:not(.edu-institution--bits):nth-child(4) {
  flex: 2.5;   /* 25% — DPS Gurgaon */
}

.edu-inst-top {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

/* BITS school name */

.edu-school-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 6vw, 7rem);
  line-height: 0.88;
  letter-spacing: -0.02em;
  color: var(--color-text);
  text-transform: uppercase;
  transition: color 0.2s ease;
}

.edu-degree {
  font-family: var(--font-mono);
  font-size: 1.275rem;
  letter-spacing: 0.08em;
  color: var(--color-text);
  text-transform: uppercase;
  transition: color 0.2s ease;
}

.edu-institution:hover .edu-school-name,
.edu-institution:hover .edu-degree,
.edu-institution:hover .edu-inst-name,
.edu-institution:hover .edu-inst-meta {
  color: #000;
}

/* Secondary school rows */

.edu-inst-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 2vw, 2rem);
  letter-spacing: 0.01em;
  color: var(--color-text);
  text-transform: uppercase;
  line-height: 1.1;
  transition: color 0.2s ease;
}

.edu-inst-meta {
  font-family: var(--font-mono);
  font-size: calc(var(--text-caption) * 2);
  letter-spacing: 0.12em;
  color: var(--color-text);
  text-transform: uppercase;
  transition: color 0.2s ease;
}

.edu-institution--secondary {
  cursor: default;
}

/* Achievements */

.edu-achievements {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  flex-shrink: 0;
}

.edu-achievements li {
  font-family: var(--font-mono);
  font-size: 1.275rem;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  text-transform: uppercase;
  padding-left: 1.4em;
  position: relative;
  line-height: 1.75;
  transition: color 0.2s ease;
}

.edu-institution:hover .edu-achievements li {
  color: #000;
}

.edu-achievements li .bullet {
  position: absolute;
  left: 0;
  top: 0.875em;           /* GSAP y:'-50%' lands the centre here = first-line midpoint */
  width: 1.2em;
  height: 1.2em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: 0.8em;
  transform-origin: center center;
  transition: color 0.2s ease;
}

.edu-achievements li .bullet svg {
  width: 1em;
  height: 1em;
  flex-shrink: 0;
  display: block;
  fill: currentColor;
  stroke: none;
}

.edu-institution:hover .edu-achievements li .bullet {
  color: #000;
}

/* ── Right column (30%) ─────────────────── */

.edu-right {
  width: 30%;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}

/* ── Skills (top ~68% of right) ─────────── */

.skills-section {
  flex: 3;
  padding: var(--space-lg) var(--gutter) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
  position: relative;
  transition: border-color 0.8s var(--ease-in-out);
}

.skills-section::before,
.pub-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--color-accent);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='65' height='65'%3E%3Cline x1='32' y1='27' x2='32' y2='37' stroke='black' stroke-width='0.8' opacity='0.12'/%3E%3Cline x1='27' y1='32' x2='37' y2='32' stroke='black' stroke-width='0.8' opacity='0.12'/%3E%3C/svg%3E");
  background-size: 65px 65px;
  opacity: 0;
  transition: opacity 0.35s var(--ease-out);
  pointer-events: none;
  z-index: 0;
}

.skills-section:hover::before,
.pub-section:hover::before {
  opacity: 1;
}

.skills-section > *,
.pub-section > * {
  position: relative;
  z-index: 1;
}

.skills-section:hover .skills-label,
.skills-section:hover .skills-group-title {
  color: #000;
}

.skills-section:hover .skill-tag {
  color: #000;
  border-color: rgba(0, 0, 0, 0.35);
}

.skills-label {
  font-family: var(--font-mono);
  font-size: calc(var(--text-caption) * 2);
  letter-spacing: 0.25em;
  color: var(--color-accent);
  text-transform: uppercase;
  flex-shrink: 0;
}

.skills-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skills-group-title {
  font-family: var(--font-mono);
  font-size: calc(var(--text-caption) * 2);
  letter-spacing: 0.2em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.skills-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  letter-spacing: 0.1em;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  padding: 0.3rem 0.7rem;
  text-transform: uppercase;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.skill-tag:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ── Publications (bottom ~32% of right) ── */

.pub-section {
  flex: 2;
  padding: var(--space-md) var(--gutter);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  overflow: hidden;
  position: relative;
}

.pub-section:hover .pub-label,
.pub-section:hover .pub-title,
.pub-section:hover .pub-meta {
  color: #000;
}

.pub-section:hover a.pub-link {
  color: #000;
}

.pub-label {
  font-family: var(--font-mono);
  font-size: calc(var(--text-caption) * 2);
  letter-spacing: 0.25em;
  color: var(--color-accent);
  text-transform: uppercase;
  flex-shrink: 0;
}

.pub-entries {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  flex: 1;
  justify-content: center;
}

.pub-entry {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  border-top: 1px solid var(--color-border);
  padding-top: 0.7rem;
  transition: border-color 0.8s var(--ease-in-out);
}

a.pub-link {
  color: var(--color-cyan);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  transition: opacity 0.2s ease;
  display: inline;
}

a.pub-link:hover {
  opacity: 0.7;
}

.pub-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.275rem;
  letter-spacing: 0.03em;
  color: var(--color-text);
  text-transform: uppercase;
  line-height: 1.3;
}

.pub-meta {
  font-family: var(--font-mono);
  font-size: calc(var(--text-caption) * 2);
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}