/* ============================================================
   UNDIM — Estilos do site
   Depende de tokens.css. Layout: campo azul-marinho continuo,
   bandas alternadas (navy-800 / navy-900 / vermelho) e uma
   coluna de conteudo de 1200px centrada.
   ============================================================ */

/* ─── RESET ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4, p, ul, ol, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

:focus-visible {
  outline: 2px solid var(--red-bright);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ─── CONTAINER E BANDAS ─────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-left: max(24px, env(safe-area-inset-left, 0px));
  padding-right: max(24px, env(safe-area-inset-right, 0px));
}
@media (min-width: 900px) {
  .container {
    padding-left: max(48px, env(safe-area-inset-left, 0px));
    padding-right: max(48px, env(safe-area-inset-right, 0px));
  }
}

.band { padding-block: var(--space-6); }
@media (min-width: 900px) { .band { padding-block: var(--space-7); } }
.band--deep { background: var(--bg-deep); }
.band--red  { background: var(--red); }

/* Anatomia fixa de secao: eyebrow -> titulo -> descricao -> conteudo */
.section-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
  max-width: 760px;
  margin-inline: auto;
  margin-bottom: var(--space-5);
}
.section-head .lead { max-width: 60ch; }

/* ─── MARCA ──────────────────────────────────────────────── */
/* O galao vermelho do "M" do logotipo, reutilizado como marcador. */
.chevron {
  width: 10px;
  height: 10px;
  flex: none;
  color: var(--red-bright);
}
.eyebrow-mark {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

/* ─── NAVEGACAO ──────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(16, 40, 69, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding-top: calc(14px + env(safe-area-inset-top, 0px));
  padding-bottom: 14px;
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}
.nav__logo img { height: 22px; width: auto; }
.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-4);
}
@media (min-width: 860px) { .nav__links { display: flex; } }
.nav__links a {
  font-size: var(--fs-body-sm);
  color: var(--fg);
  transition: color var(--duration-fast) var(--ease-out);
}
.nav__links a:hover { color: var(--red-bright); }
.nav__links a[aria-current="page"] { color: var(--red-bright); }

/* O nav e fixo: as paginas abrem abaixo dele. */
.page-top { padding-top: calc(72px + env(safe-area-inset-top, 0px)); }

/* ─── BOTOES ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 13px 26px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-family: var(--font-sans);
  font-size: var(--fs-body-sm);
  font-weight: var(--fw-medium);
  letter-spacing: 0.01em;
  text-align: center;
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
}
.btn--primary { background: var(--red); color: var(--pearl); }
.btn--primary:hover { background: var(--red-deep); transform: translateY(-2px); }
.btn--primary:active { transform: none; background: var(--red-deep); }

.btn--ghost { background: transparent; color: var(--fg); border-color: var(--border-strong); }
.btn--ghost:hover { background: var(--pearl); color: var(--navy-800); transform: translateY(-2px); }
.btn--ghost:active { transform: none; }

.btn--on-red { background: var(--pearl); color: var(--navy-800); }
.btn--on-red:hover { background: var(--navy-900); color: var(--pearl); transform: translateY(-2px); }
.btn--on-red:active { transform: none; }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ─── HERO ───────────────────────────────────────────────── */
.hero {
  padding-top: calc(120px + env(safe-area-inset-top, 0px));
  padding-bottom: var(--space-6);
  text-align: center;
}
@media (min-width: 900px) {
  .hero { padding-top: calc(168px + env(safe-area-inset-top, 0px)); padding-bottom: var(--space-7); }
}
.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}
.hero__inner .h1 { margin-block: var(--space-1) var(--space-1); }
.hero__inner .lead { max-width: 56ch; }
.hero__inner .btn-row { margin-top: var(--space-3); justify-content: center; }

/* ─── MARQUEE DE DISCIPLINAS ─────────────────────────────── */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding-block: var(--space-3);
  background: var(--bg-deep);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track {
  display: flex;
  width: max-content;
  gap: var(--space-5);
  animation: marqueeScroll 40s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  white-space: nowrap;
}
.marquee__code {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: var(--tracking-wide);
  color: var(--red-bright);
  font-variant-numeric: tabular-nums;
}
.marquee__name {
  font-size: var(--fs-body-sm);
  color: var(--fg-muted);
}
@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; }
}

/* ─── CARDS ──────────────────────────────────────────────── */
.grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}
@media (min-width: 700px)  { .grid--2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 700px)  { .grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .grid--3 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 700px)  { .grid--4 { grid-template-columns: repeat(2, 1fr); } }

.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
  padding: var(--space-4);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.card__rule {
  width: 40px;
  height: 2px;
  background: var(--red);
  border-radius: 2px;
}

/* Cartao de disciplina */
.disc {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
  padding: var(--space-4);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
}
a.disc:hover {
  border-color: var(--border-strong);
  background: var(--navy-600);
  transform: translateY(-2px);
}
.disc__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.disc__code {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: var(--tracking-wide);
  color: var(--red-bright);
  font-variant-numeric: tabular-nums;
}
.disc__term {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-wide);
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
}

/* Pilula / badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 13px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-strong);
  font-size: 11px;
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--fg-muted);
}
.badge-row { display: flex; flex-wrap: wrap; gap: var(--space-1); }

/* Material em escrita: o vermelho da marca sinaliza que o arquivo ainda muda.
   É o único lugar do site onde entra trabalho não publicado, e ele entra
   declarado. */
.badge.wip {
  border-color: var(--red-bright);
  color: var(--red-bright);
  font-weight: var(--fw-bold);
}

/* ─── CITACAO DE METODO ──────────────────────────────────── */
.pull {
  max-width: 900px;
  margin-inline: auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}
.pull__text {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 40px);
  font-weight: var(--fw-medium);
  line-height: 1.22;
  letter-spacing: var(--tracking-normal);
  text-wrap: balance;
  color: var(--fg);
}

/* ─── LISTA DEFINIDA (materiais, pesquisa) ───────────────── */
.deflist {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--border);
}
.deflist__row {
  display: grid;
  gap: var(--space-1) var(--space-4);
  grid-template-columns: 1fr;
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--border);
  min-width: 0;
}
@media (min-width: 800px) {
  .deflist__row { grid-template-columns: 260px 1fr; align-items: start; }
}
.deflist__term {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-normal);
  color: var(--fg);
  min-width: 0;
}

/* ─── CTA FINAL ──────────────────────────────────────────── */
.cta { text-align: center; display: flex; flex-direction: column; align-items: center; gap: var(--space-2); }
.cta .h2 { color: var(--pearl); }
.cta p { color: rgba(245, 242, 236, 0.86); max-width: 52ch; }
.cta .btn-row { margin-top: var(--space-3); justify-content: center; }
.cta .eyebrow { color: rgba(245, 242, 236, 0.78); }

/* ─── CONTATO ────────────────────────────────────────────── */
.contact-line {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--fg);
  user-select: all;
}

/* ─── RODAPE ─────────────────────────────────────────────── */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding-block: var(--space-6) var(--space-5);
}
.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.footer__brand { display: flex; flex-direction: column; gap: var(--space-2); }
/* align-self impede que o stretch do flex em coluna estique o
   wordmark ate a largura da coluna. */
.footer__brand img { height: 26px; width: auto; align-self: flex-start; }
.footer__cols {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 700px) { .footer__cols { grid-template-columns: repeat(3, 1fr); } }
.footer__col { display: flex; flex-direction: column; gap: var(--space-1); min-width: 0; }
.footer__col a, .footer__col span {
  font-size: var(--fs-body-sm);
  color: var(--fg-muted);
  transition: color var(--duration-fast) var(--ease-out);
}
.footer__col a:hover { color: var(--red-bright); }
.footer__base {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: space-between;
  padding-top: var(--space-3);
  border-top: 1px solid var(--border);
}

/* ─── REVELACAO NO SCROLL ────────────────────────────────────
   Aplicada so quando o JS confirma que pode animar. Sem o JS,
   e com movimento reduzido, tudo ja nasce visivel. */
.js-anim .reveal { opacity: 0; transform: translateY(24px); }

/* ─── AJUSTES DE ESCALA DENTRO DE CARTOES ────────────────────
   O .h3 da escala global e grande demais para um cartao; dentro
   deles a mesma classe cai um degrau. */
.card .h3, .disc .h3 { font-size: clamp(19px, 1.9vw, 25px); }

/* O cartao da disciplina do semestre corrente ocupa duas colunas,
   de modo que as cinco disciplinas preencham a grade sem sobra. */
@media (min-width: 700px) { .disc--wide { grid-column: span 2; } }

/* ─── PAGINAS INTERNAS ───────────────────────────────────── */
.page-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
  max-width: 820px;
  margin-inline: auto;
  padding-block: var(--space-6) var(--space-5);
}
@media (min-width: 900px) { .page-head { padding-block: var(--space-7) var(--space-6); } }
.page-head .lead { max-width: 62ch; }

/* Bloco longo de disciplina / material */
.entry {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
  padding-block: var(--space-5);
  border-top: 1px solid var(--border);
  scroll-margin-top: 96px;
}
.entry__top {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.entry__body { max-width: 68ch; }
.entry .body + .body { margin-top: var(--space-1); }

/* Lista marcada com o galao da marca */
.marks { display: flex; flex-direction: column; gap: var(--space-1); margin-top: var(--space-1); }
.marks li {
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: var(--space-2);
  align-items: start;
  min-width: 0;
  font-size: var(--fs-body-sm);
  line-height: 1.55;
  color: var(--fg-muted);
}
.marks .chevron { margin-top: 7px; }
/* Links dentro da lista: o resto do site usa botao, so a lista de aulas
   precisa de link em texto corrido. */
.marks a {
  color: var(--fg);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--red-bright);
}
.marks a:hover { color: var(--red-bright); }

/* ════════════════════════════════════════════════════════════
   PAGINA PESSOAL
   ════════════════════════════════════════════════════════════ */

/* ─── HERO COM RETRATO ───────────────────────────────────── */
.hero--pessoal { text-align: left; }
.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  align-items: center;
}
@media (min-width: 920px) {
  .hero__grid { grid-template-columns: 1.3fr 0.7fr; gap: var(--space-6); }
}
.hero__texto {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
  min-width: 0;
}
/* A saudacao e curta: ela comporta quase toda a escala de display. */
.hero__texto .h1 { font-size: clamp(38px, 6.4vw, 78px); }
.hero__texto .lead,
.hero__texto .body,
.hero__texto .body-sm { max-width: 54ch; }
.hero__texto .btn-row { margin-top: var(--space-3); }

.portrait {
  position: relative;
  max-width: 360px;
  width: 100%;
  margin-inline: auto;
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-md);
}
.portrait img { width: 100%; height: 100%; object-fit: cover; }

/* ─── NUMEROS ────────────────────────────────────────────── */
.stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}
@media (min-width: 700px) { .stats { grid-template-columns: repeat(3, 1fr); } }
.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  padding-left: var(--space-2);
  border-left: 2px solid var(--red);
}
.stat__num {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 44px);
  font-weight: var(--fw-semibold);
  line-height: 1.05;
  letter-spacing: var(--tracking-normal);
  color: var(--fg);
  font-variant-numeric: tabular-nums;
}
.stat__label {
  font-size: var(--fs-body-sm);
  line-height: 1.35;
  color: var(--fg-muted);
}

/* ─── LINHA DO TEMPO ─────────────────────────────────────── */
.tl { border-top: 1px solid var(--border); }
.tl__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1) var(--space-4);
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--border);
  min-width: 0;
}
@media (min-width: 820px) {
  .tl__item { grid-template-columns: 150px 1fr; align-items: start; }
}
.tl__ano {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: var(--tracking-wide);
  color: var(--red-bright);
  font-variant-numeric: tabular-nums;
  padding-top: 4px;
}
.tl__corpo { min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.tl__papel {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-normal);
  color: var(--fg);
}
.tl__org { font-size: var(--fs-body-sm); color: var(--red-bright); }
.tl__det { font-size: var(--fs-body-sm); line-height: 1.55; color: var(--fg-muted); max-width: 70ch; }

/* ─── PUBLICACOES ────────────────────────────────────────── */
.pubs { border-top: 1px solid var(--border); }
.pub {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1) var(--space-4);
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--border);
  min-width: 0;
}
@media (min-width: 820px) {
  .pub { grid-template-columns: 90px 1fr; align-items: start; }
}
.pub__ano {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: var(--tracking-wide);
  color: var(--red-bright);
  font-variant-numeric: tabular-nums;
  padding-top: 4px;
}
.pub__corpo { min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.pub__titulo {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: var(--fw-semibold);
  line-height: 1.3;
  letter-spacing: var(--tracking-normal);
  color: var(--fg);
}
.pub__autores { font-size: var(--fs-body-sm); line-height: 1.5; color: var(--fg-muted); }
.pub__autores strong { color: var(--fg); font-weight: var(--fw-semibold); }
.pub__veiculo {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--fs-body-sm);
  color: var(--fg-muted);
}
.pub__veiculo em { color: var(--fg); font-style: italic; }

/* ─── CONTATO ────────────────────────────────────────────── */
.contato-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  width: 100%;
  max-width: 760px;
  margin-top: var(--space-4);
}
@media (min-width: 700px) { .contato-grid { grid-template-columns: repeat(2, 1fr); } }
.contato-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  text-align: left;
  padding: var(--space-3);
  border: 1px solid var(--border-on-red);
  border-radius: var(--radius-md);
}
.contato-item .mono { color: rgba(245, 242, 236, 0.75); }
.contato-item a, .contato-item span { color: var(--pearl); font-size: 15px; word-break: break-word; }
.contato-item a { text-decoration: underline; text-underline-offset: 3px; }

/* ─── PROSA NARRATIVA ────────────────────────────────────────
   Um bloco de leitura corrida, para quando a secao conta uma
   historia em vez de enumerar pontos. */
.prosa {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 64ch;
  margin-inline: auto;
  min-width: 0;
}
.prosa p {
  font-family: var(--font-sans);
  font-size: var(--fs-lead);
  line-height: 1.62;
  color: var(--fg-muted);
}
.prosa p strong { color: var(--fg); font-weight: var(--fw-medium); }
.prosa .btn-row { margin-top: var(--space-3); }

/* ─── POR QUEM ───────────────────────────────────────────────
   O espelho do hero: ali o retrato fica a direita do texto,
   aqui a foto vem a esquerda. */
.quem {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  align-items: center;
}
@media (min-width: 920px) {
  .quem { grid-template-columns: 0.85fr 1.15fr; gap: var(--space-6); }
}
.quem__foto {
  margin: 0;
  max-width: 420px;
  width: 100%;
  margin-inline: auto;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-md);
}
.quem__foto img { width: 100%; height: auto; }
.quem__texto {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
  min-width: 0;
}
.quem__texto .lead { max-width: 48ch; }