/* ═══════════════════════════════════════════
   4. ACADÊMICO
═══════════════════════════════════════════ */
/* ── Horizontal zig-zag trail ── */
.acad-trail-wrap {
  overflow-x: auto;
  padding: 1rem 0 0.5rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.acad-trail-wrap::-webkit-scrollbar { height: 3px; }
.acad-trail-wrap::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.acad-trail {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  min-width: 1180px;
  padding: 20px 2rem;
  min-height: 420px;
  align-items: center;
}
.acad-trail-line {
  position: absolute;
  left: 2rem; right: 2rem;
  top: 50%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold-dim), var(--gold-dim), transparent);
  transform: translateY(-0.5px);
}
.acad-node {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  justify-content: center;
}
.acad-node-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--gold);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
}
.acad-node-year {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: 'DM Mono', monospace;
  font-size: 0.6rem;
  color: var(--gold);
  background: var(--bg);
  padding: 0 0.4rem;
  z-index: 1;
  white-space: nowrap;
  margin-top: 26px;
}
.acad-card {
  width: max-content;
  max-width: 240px;
  min-width: 130px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  transition: border-color var(--transition);
}
.acad-card:hover { border-color: var(--gold-dim); }
.acad-card::after {
  content: '';
  position: absolute;
  left: 50%;
  width: 1px;
  background: var(--border);
  transform: translateX(-0.5px);
}
.acad-node--top .acad-card { bottom: calc(50% + 22px); }
.acad-node--top .acad-card::after { top: 100%; height: 22px; }
.acad-node--bottom .acad-card { top: calc(50% + 22px); }
.acad-node--bottom .acad-card::after { bottom: 100%; height: 22px; }

.acad-card-degree {
  font-family: 'DM Mono', monospace;
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.4rem;
}
.acad-card-field {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--text);
  line-height: 1.15;
  margin-bottom: 0.3rem;
  white-space: nowrap;
}
.acad-card-inst {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  line-height: 1.3;
}
.acad-card-desc {
  font-size: 0.68rem;
  font-weight: 300;
  line-height: 1.4;
  color: var(--text-dim);
}

/* ── Horizontal scroll hint ── */
.scroll-hint-h {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-top: 1rem;
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.scroll-hint-track {
  position: relative;
  width: 44px;
  height: 1px;
  background: var(--border);
  overflow: hidden;
}
.scroll-hint-track::after {
  content: '';
  position: absolute;
  top: -1px; left: 0;
  width: 14px; height: 3px;
  background: var(--gold);
  border-radius: 2px;
  animation: scrollHintSlide 1.8s ease-in-out infinite;
}
@keyframes scrollHintSlide {
  0%   { left: 0; opacity: 0; }
  20%  { opacity: 1; }
  80%  { opacity: 1; }
  100% { left: 30px; opacity: 0; }
}
@media (min-width: 1240px) {
  #profissional .scroll-hint-h { display: none; }
}

/* ── Certification badges ── */
.acad-certs { margin-top: 3.5rem; }
.acad-certs-title {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.acad-certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}
@media (max-width: 900px) and (min-width: 641px) {
  .acad-certs-grid { grid-template-columns: repeat(2, 1fr); }
}
.acad-cert {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}
.acad-cert:hover { border-color: var(--gold-dim); }
.acad-cert-tag {
  flex-shrink: 0;
  min-width: 54px;
  text-align: center;
  font-family: 'DM Mono', monospace;
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--gold);
  padding: 0.35rem 0.4rem;
  border: 1px solid var(--gold-dim);
  border-radius: 3px;
}
.acad-cert-name {
  font-size: 0.8rem;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: 0.15rem;
}
.acad-cert-org {
  font-family: 'DM Mono', monospace;
  font-size: 0.62rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

@media (max-width: 640px) {
  .acad-certs-grid {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: 78%;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 0.5rem;
  }
  .acad-certs-grid::-webkit-scrollbar { display: none; }
  .acad-cert { scroll-snap-align: start; }
}

/* ── legacy academic (kept for safety) ── */
.academic-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: start;
}
.education-list { display: flex; flex-direction: column; gap: 2.5rem; }
.edu-card {
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
}
.edu-card:last-child { border-bottom: none; }
.edu-degree {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 0.3rem;
}
.edu-institution { font-size: 0.85rem; color: var(--gold); margin-bottom: 0.2rem; }
.edu-period {
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}
.edu-desc {
  font-size: 0.85rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--text-muted);
  margin-top: 0.8rem;
}

.research-list { display: flex; flex-direction: column; gap: 1.5rem; }
.research-item {
  border-left: 1px solid var(--border);
  padding-left: 1.5rem;
  transition: border-color var(--transition);
}
.research-item:hover { border-left-color: var(--gold); }
.research-title {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 0.3rem;
}
.research-meta {
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--text-dim);
}