/* ============ Base tokens ============ */
:root {
  --font-ti: 'JetBrains Mono', ui-monospace, monospace;
  --font-ti-alt: 'Space Grotesk', sans-serif;
  --font-educacao: 'Fraunces', Georgia, serif;
  --font-educacao-alt: 'Lora', Georgia, serif;

  --bg: #0b0c10;
  --bg-neutral: #101114;
  --bg-neutral-2: #16171b;
  --bg-raised: #14161b;
  --line: #232732;
  --text: #eef0f3;
  --text-dim: #a4a8b3;
  --text-dimmer: #6f7480;

  --ti-accent: #4fd1c5;
  --ti-accent-2: #7c9eff;
  --ti-bg: #0a0e14;
  --ti-bg-alt: #0d1420;
  --ti-line: #1e2733;

  --educacao-accent: #e08e45;
  --educacao-accent-2: #c9704a;
  --educacao-bg: #fbf3e9;
  --educacao-text: #2b241c;
  --educacao-text-dim: #6b5e4d;
  --educacao-line: #e3d3bd;

  --gestao-accent: #d1a94c;
  --gestao-accent-2: #8fa8c9;
  --gestao-bg: #0f1420;
  --gestao-bg-alt: #131a29;
  --gestao-line: #29344a;

  --bridge: #f2f5f8;

  --radius: 14px;
  --max-w: 1100px;
  --transition: 220ms ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ti-alt);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; }

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  opacity: 0.75;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0 0 1.5rem;
  font-weight: 600;
}

.section-lead {
  max-width: 60ch;
  color: var(--text-dim);
  font-size: 1.05rem;
}

/* ============ Navbar ============ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  background: rgba(11, 12, 16, 0.7);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background var(--transition);
}

.nav-brand {
  font-family: var(--font-ti);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ti-accent);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--text-dim);
  transition: color var(--transition);
  position: relative;
}

.nav-links a:hover { color: var(--text); }

.nav-links a.link-ti:hover { color: var(--ti-accent); }
.nav-links a.link-gestao:hover { color: var(--gestao-accent); }
.nav-links a.link-educacao:hover { color: var(--educacao-accent); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

/* ============ Intro (hero + timeline graph) ============ */
.intro-wrap {
  padding: 0 1.5rem;
}

.hero {
  max-width: 720px;
  margin: 0 auto;
  padding: 6.5rem 0 2rem;
  text-align: center;
}
.hero-kicker {
  font-family: var(--font-ti);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 0.75rem;
}
.hero-name {
  font-family: var(--font-educacao);
  font-weight: 600;
  font-size: clamp(2rem, 6vw, 3rem);
  margin: 0 0 0.9rem;
  text-wrap: balance;
  background: linear-gradient(90deg, var(--ti-accent), var(--gestao-accent), var(--educacao-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-tagline {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 55ch;
  margin: 0 auto 1.75rem;
}
.btn-ghost {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--text);
  font-size: 0.88rem;
  transition: border-color 200ms ease, color 200ms ease;
}
.btn-ghost:hover { border-color: var(--educacao-accent); color: var(--educacao-accent); }

/* ============ Legend ============ */
.legend {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.5rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: center;
}
.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}
.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}
.legend-dot--ti { background: var(--ti-accent); }
.legend-dot--gestao { background: var(--gestao-accent); }
.legend-dot--educacao { background: var(--educacao-accent); }
.legend-dot--bridge { background: var(--bridge); box-shadow: 0 0 0 2px rgba(242,245,248,0.25); }

.scroll-hint-text {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dimmer);
  margin: 0.5rem 0 1.5rem;
  font-family: var(--font-ti);
}

/* ============ Map (timeline graph) ============ */
.map-wrap {
  max-width: 1100px;
  margin: 0 auto;
  overflow-x: auto;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--bg-raised);
  padding: 1rem 0;
  scrollbar-color: var(--line) transparent;
}

.map-canvas {
  position: relative;
  width: 100%;
  min-width: 1000px;
  height: 640px;
}

.year-axis {
  position: absolute;
  inset: 0;
  font-family: var(--font-ti);
  font-size: 0.72rem;
  color: var(--text-dimmer);
}
.year-axis span {
  position: absolute;
  top: 8px;
  transform: translateX(-50%);
}

.connectors {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.track-label {
  position: absolute;
  left: 0;
  transform: translateY(-50%);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--bg);
}
.track-label--ti { color: var(--ti-accent); border: 1px solid rgba(79,209,197,0.35); }
.track-label--gestao { color: var(--gestao-accent); border: 1px solid rgba(209,169,76,0.35); }
.track-label--educacao { color: var(--educacao-accent); border: 1px solid rgba(224,142,69,0.35); }

.track-line {
  position: absolute;
  left: 70px;
  right: 40px;
  height: 2px;
  transform: translateY(-50%);
}
.track-line--ti { background: linear-gradient(90deg, rgba(79,209,197,0.7), rgba(79,209,197,0.15)); }
.track-line--gestao { background: linear-gradient(90deg, rgba(209,169,76,0.7), rgba(209,169,76,0.15)); }
.track-line--educacao { background: linear-gradient(90deg, rgba(224,142,69,0.7), rgba(224,142,69,0.15)); }

.map-node {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  color: var(--text);
}

.node-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--bg-raised);
  transition: transform 180ms ease, box-shadow 180ms ease;
}
.map-node--ti .node-dot { background: var(--ti-accent); box-shadow: 0 0 0 3px rgba(79,209,197,0.18); }
.map-node--gestao .node-dot { background: var(--gestao-accent); box-shadow: 0 0 0 3px rgba(209,169,76,0.18); }
.map-node--educacao .node-dot { background: var(--educacao-accent); box-shadow: 0 0 0 3px rgba(224,142,69,0.18); }

.node-label {
  font-size: 0.78rem;
  line-height: 1.3;
  color: var(--text-dim);
  white-space: nowrap;
}
.node-label strong { color: var(--text); font-weight: 600; }

.node-category {
  display: block;
  font-family: var(--font-ti);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.15rem;
}
.map-node--ti .node-category { color: var(--ti-accent); }
.map-node--gestao .node-category { color: var(--gestao-accent); }
.map-node--educacao .node-category { color: var(--educacao-accent); }
.node-label--bridge .node-category { color: var(--bridge); }

.map-node:hover .node-dot,
.map-node:focus-visible .node-dot { transform: scale(1.25); }
.map-node.is-active .node-dot { transform: scale(1.4); box-shadow: 0 0 0 5px rgba(255,255,255,0.15); }
.map-node:focus-visible { outline: none; }
.map-node:focus-visible .node-label { color: var(--text); }

.map-node--bridge { z-index: 3; }
.node-dot--bridge {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  transform: rotate(45deg);
  background: var(--bridge);
  box-shadow: 0 0 0 3px rgba(242,245,248,0.15), 0 0 14px rgba(242,245,248,0.25);
}
.map-node--bridge:hover .node-dot--bridge,
.map-node--bridge.is-active .node-dot--bridge { transform: rotate(45deg) scale(1.3); }
.node-label--bridge strong { color: var(--bridge); }

.connector-path {
  fill: none;
  stroke: rgba(242,245,248,0.28);
  stroke-width: 1.5;
  stroke-dasharray: 4 5;
}

/* ============ Detail panel ============ */
.detail-panel {
  max-width: 1100px;
  margin: 1.5rem auto 3rem;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--bg-raised);
  overflow: hidden;
  animation: expandIn 260ms ease;
}
@keyframes expandIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.detail-inner { position: relative; padding: 2rem; }
.detail-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.9rem;
}
.detail-close:hover { color: var(--text); border-color: var(--text-dim); }
.detail-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dimmer);
  margin-bottom: 0.75rem;
}
.detail-title {
  font-family: var(--font-educacao);
  font-size: 1.5rem;
  margin: 0 0 0.5rem;
  max-width: 40ch;
  text-wrap: balance;
}
.detail-org { color: var(--text-dim); font-size: 0.95rem; margin: 0 0 0.75rem; }
.detail-desc { color: var(--text-dim); font-size: 0.95rem; max-width: 60ch; margin: 0; }
.detail-desc:empty { display: none; }

/* ============ Neutral section (Sobre) ============ */
.section--neutral {
  background: var(--bg-neutral);
}

.identity-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.identity-card {
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.08);
}

.identity-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.identity-card--ti {
  background: linear-gradient(160deg, var(--ti-bg-alt), transparent);
  border-color: var(--ti-line);
}
.identity-card--ti .identity-icon {
  background: rgba(79, 209, 197, 0.12);
  color: var(--ti-accent);
  font-family: var(--font-ti);
}
.identity-card--ti h3 { font-family: var(--font-ti-alt); color: var(--ti-accent); margin: 0 0 0.6rem; }

.identity-card--gestao {
  background: linear-gradient(160deg, rgba(209, 169, 76, 0.08), transparent);
  border-color: rgba(209, 169, 76, 0.25);
}
.identity-card--gestao .identity-icon {
  background: rgba(209, 169, 76, 0.14);
  color: var(--gestao-accent);
}
.identity-card--gestao h3 { color: var(--gestao-accent); margin: 0 0 0.6rem; }

.identity-card--educacao {
  background: linear-gradient(160deg, rgba(224, 142, 69, 0.08), transparent);
  border-color: rgba(224, 142, 69, 0.25);
}
.identity-card--educacao .identity-icon {
  background: rgba(224, 142, 69, 0.14);
  color: var(--educacao-accent);
  font-family: var(--font-educacao);
}
.identity-card--educacao h3 { font-family: var(--font-educacao); color: var(--educacao-accent); margin: 0 0 0.6rem; }

.identity-card p { color: var(--text-dim); font-size: 0.95rem; margin: 0; }

/* ============ Shared tag component ============ */
.tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}
.tag--ti {
  font-family: var(--font-ti);
  background: rgba(79, 209, 197, 0.12);
  color: var(--ti-accent);
}
.tag--gestao {
  background: rgba(209, 169, 76, 0.14);
  color: var(--gestao-accent);
}
.tag--educacao {
  font-family: var(--font-educacao);
  text-transform: none;
  background: rgba(224, 142, 69, 0.14);
  color: var(--educacao-accent);
}

/* ============ Rail (per-area track) ============ */
.rail {
  position: relative;
  margin-top: 3rem;
  padding-left: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2.75rem;
}
.rail::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 2px;
  background: currentColor;
  opacity: 0.18;
}
.rail-step {
  position: relative;
  color: inherit;
}
.rail-step::before {
  content: '';
  position: absolute;
  left: -2.45rem;
  top: 0.4rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 4px color-mix(in srgb, currentColor 18%, transparent);
  opacity: 0.9;
}
.rail-step--current::before {
  width: 14px;
  height: 14px;
  left: -2.55rem;
}
.rail-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.85;
  margin-right: 0.75rem;
}
.rail-year {
  font-size: 0.78rem;
  opacity: 0.6;
  letter-spacing: 0.04em;
}
.rail-title { margin: 0.5rem 0 0.2rem; font-size: 1.2rem; }
.rail-org { opacity: 0.75; margin: 0 0 0.5rem; font-size: 0.9rem; }
.rail-desc { opacity: 0.75; margin: 0; max-width: 60ch; font-size: 0.92rem; }

/* ============ TI section ============ */
.section--ti {
  background: var(--ti-bg);
  border-top: 1px solid var(--ti-line);
  font-family: var(--font-ti-alt);
}
.section--ti .section-eyebrow { font-family: var(--font-ti); color: var(--ti-accent); }
.section--ti .section-title { color: var(--text); }
.section-lead--ti { color: var(--text-dim); }
.section--ti .rail { color: var(--ti-accent); }
.section--ti .rail-title,
.section--ti .rail-tag { color: var(--text); }
.section--ti .rail-year,
.section--ti .rail-org,
.section--ti .rail-desc { color: var(--text-dim); }

.badge-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 3rem;
}
.badge {
  font-family: var(--font-ti);
  font-size: 0.75rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--ti-line);
  color: var(--ti-accent-2);
  background: rgba(124, 158, 255, 0.06);
}
.badge-heading {
  display: block;
  font-family: var(--font-ti-alt);
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-top: 2.5rem;
  margin-bottom: -1.5rem;
}

/* ============ Gestão section ============ */
.section--gestao {
  background: var(--gestao-bg);
  border-top: 1px solid var(--gestao-line);
}
.section--gestao .section-eyebrow { color: var(--gestao-accent); }
.section--gestao .section-title { color: var(--text); }
.section-lead--gestao { color: var(--text-dim); }
.section--gestao .rail { color: var(--gestao-accent); }
.section--gestao .rail-title,
.section--gestao .rail-tag { color: var(--text); }
.section--gestao .rail-year,
.section--gestao .rail-org,
.section--gestao .rail-desc { color: var(--text-dim); }

/* ============ Educação section ============ */
.section--educacao {
  background: var(--educacao-bg);
  color: var(--educacao-text);
  font-family: var(--font-educacao-alt);
  border-top: 1px solid var(--educacao-line);
}
.section--educacao .section-eyebrow { color: var(--educacao-accent-2); }
.section--educacao .section-title { font-family: var(--font-educacao); color: var(--educacao-text); }
.section-lead--educacao { color: var(--educacao-text-dim); }
.section--educacao .rail { color: var(--educacao-accent-2); }
.section--educacao .rail-title { font-family: var(--font-educacao); color: var(--educacao-text); }
.section--educacao .rail-tag { color: var(--educacao-text); }
.section--educacao .rail-year,
.section--educacao .rail-org,
.section--educacao .rail-desc { color: var(--educacao-text-dim); }

/* ============ Transdisciplinaridade ============ */
.section--transdisciplinar {
  background: var(--bg-neutral-2);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.bridge-diagram {
  height: 3px;
  margin: 2.5rem 0;
  display: flex;
  gap: 0.5rem;
  border-radius: 999px;
  overflow: hidden;
}
.bridge-line { flex: 1; }
.bridge-line--ti { background: var(--ti-accent); }
.bridge-line--gestao { background: var(--gestao-accent); }
.bridge-line--educacao { background: var(--educacao-accent); }

.bridge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.bridge-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 1.75rem;
}
.bridge-tags {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
}
.bridge-x { color: var(--text-dimmer); font-size: 0.85rem; }
.bridge-card h3 { margin: 0 0 0.4rem; font-size: 1.05rem; color: var(--text); }
.bridge-card .card-meta { font-size: 0.8rem; color: var(--text-dimmer); margin: 0 0 0.75rem; }
.bridge-card p:not(.card-meta) { color: var(--text-dim); font-size: 0.92rem; margin: 0; }

/* ============ Footer ============ */
.footer {
  text-align: center;
  padding: 2rem 1.5rem;
  color: var(--text-dimmer);
  font-size: 0.82rem;
  background: var(--bg-neutral);
}

/* ============ Scroll reveal ============ */
.section-inner {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.section-inner.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ Responsive ============ */
@media (max-width: 860px) {
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(11, 12, 16, 0.97);
    backdrop-filter: blur(12px);
    padding: 1.5rem;
    gap: 1.2rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transform: translateY(-110%);
    opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
    pointer-events: none;
  }
  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-toggle { display: flex; }
}

@media (max-width: 640px) {
  .legend { gap: 0.75rem 1rem; }
}

@media (max-width: 520px) {
  .section-inner { padding: 3.5rem 1.25rem; }
}