/* =====================================================================
   REPISO — Editorial Holding
   Sistema de design: _design-system.md (fonte da verdade)
   [Claude — 2026-06-12]
   ===================================================================== */

/* ---------------------------------------------------------------------
   1. TOKENS
   --------------------------------------------------------------------- */
:root {
  /* Fundo & superfícies */
  --c-bg:            #F4F1EA;
  --c-surface:       #FBF9F4;
  --c-surface-sunk:  #ECE7DC;

  /* Tinta & texto */
  --c-ink:           #1A1714;
  --c-text:          #2A2622;
  --c-text-muted:    #6A6258;
  --c-text-faint:    #5F584D;

  /* Acento (latão) */
  --c-accent:        #9A7B4F;
  --c-accent-deep:   #7A5E36;
  --c-accent-wash:   #EDE6D8;

  /* Linhas & divisores */
  --c-rule:          #D8D1C4;
  --c-rule-strong:   #B7AE9D;

  /* Foco & estados */
  --c-focus:         #7A5E36;
  --c-selection:     #E2D9C6;

  /* Mascote (escopo restrito ao bloco do Bear) */
  --c-bear-sky:      #C9D8F0;
  --c-bear-cream:    #F3E2B8;

  /* Tipografia */
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-sans:    "Spline Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono:    "Spline Sans Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --fs-display: clamp(3.20rem, 2.10rem + 5.50vw, 6.50rem);
  --fs-h1:      clamp(2.40rem, 1.70rem + 3.50vw, 4.20rem);
  --fs-h2:      clamp(1.80rem, 1.40rem + 2.00vw, 2.85rem);
  --fs-h3:      clamp(1.35rem, 1.15rem + 1.00vw, 1.80rem);
  --fs-lead:    clamp(1.20rem, 1.08rem + 0.60vw, 1.45rem);
  --fs-body:    clamp(1.06rem, 1.00rem + 0.30vw, 1.18rem);
  --fs-small:   clamp(0.92rem, 0.88rem + 0.18vw, 1.00rem);
  --fs-micro:   clamp(0.72rem, 0.70rem + 0.10vw, 0.80rem);
  --fs-num:     clamp(1.60rem, 1.20rem + 1.50vw, 2.40rem);

  /* Espaçamento (base 8px) */
  --space-3xs: 0.25rem;
  --space-2xs: 0.50rem;
  --space-xs:  0.75rem;
  --space-sm:  1.00rem;
  --space-md:  1.50rem;
  --space-lg:  2.00rem;
  --space-xl:  3.00rem;
  --space-2xl: 4.50rem;
  --space-3xl: 6.00rem;
  --space-4xl: 9.00rem;
  --space-5xl: 12.0rem;

  /* Container & grid */
  --container-max:    1140px;
  --container-wide:   1280px;
  --container-narrow:  720px;
  --gutter:           clamp(1.25rem, 4vw, 4rem);
  --grid-gap:         clamp(1rem, 2.5vw, 2rem);

  /* Radii & bordas */
  --radius-xs:   2px;
  --radius-sm:   4px;
  --border-hairline: 1px solid var(--c-rule);
  --border-strong:   1px solid var(--c-rule-strong);
  --border-accent:   1px solid var(--c-accent);
  --shadow-paper: 0 1px 2px rgba(26,23,20,0.04), 0 8px 24px -16px rgba(26,23,20,0.10);

  /* Motion */
  --ease-out:   cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft:  cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast:   180ms;
  --dur-base:   260ms;
  --dur-slow:   600ms;
}

/* ---------------------------------------------------------------------
   2. RESET & BASE
   --------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 90px; /* clear sticky header on anchor jumps */
}

body {
  background-color: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.65;
  font-weight: 400;
  overflow-wrap: break-word;
  font-variant-numeric: oldstyle-nums;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  /* clip (não hidden): contém estouro horizontal sem criar contexto de scroll,
     preservando position:sticky e scroll-padding. A causa real é tratada com
     overflow-wrap nos textos longos abaixo. */
  overflow-x: clip;
}

img, svg { display: block; max-width: 100%; height: auto; }

ul { list-style: none; padding: 0; }

::selection { background: var(--c-selection); color: var(--c-ink); }

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

/* ---------------------------------------------------------------------
   3. LAYOUT HELPERS
   --------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: var(--container-narrow); }

/* Filetes divisores — sem margem própria: o respiro macro entre seções é
   carregado pelo padding das .person (evita somar dois espaços por acidente) */
.rule {
  border: 0;
  border-top: 1px solid var(--c-rule);
  margin-block: 0;
}
.rule--hero {
  margin-top: var(--space-3xl);
  margin-bottom: 0;
}

/* ---------------------------------------------------------------------
   4. SKIP LINK
   --------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 200;
  background: var(--c-ink);
  color: var(--c-bg);
  padding: 12px 16px;
  border-radius: 0 0 4px 0;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.skip-link:focus { left: 0; }

/* ---------------------------------------------------------------------
   5. LINKS (global — sublinhado latão que cresce da esquerda)
   --------------------------------------------------------------------- */
a {
  color: var(--c-ink);
  text-decoration: none;
  background-image: linear-gradient(var(--c-accent), var(--c-accent));
  background-size: 0% 1px;
  background-repeat: no-repeat;
  background-position: left bottom;
  transition: background-size var(--dur-base) var(--ease-soft), color var(--dur-fast) var(--ease-soft);
}
a:hover, a:focus-visible { background-size: 100% 1px; }

/* ---------------------------------------------------------------------
   6. SITE HEADER / NAV
   --------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--c-bg);
  border-bottom: 1px solid var(--c-rule);
  transition: border-color var(--dur-base) var(--ease-soft);
}
.site-header.is-scrolled { border-bottom-color: var(--c-rule-strong); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: var(--space-md);
}

.site-header__mark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-h3);
  letter-spacing: -0.01em;
  color: var(--c-ink);
  background-image: none;
}

/* nav */
.site-nav { display: flex; align-items: center; }

.site-nav__toggle {
  display: none;
  appearance: none;
  background: transparent;
  border: 1px solid var(--c-rule-strong);
  border-radius: var(--radius-xs);
  color: var(--c-text);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 10px 16px;
  min-height: 44px;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-soft), color var(--dur-fast) var(--ease-soft);
}
.site-nav__toggle:hover { border-color: var(--c-accent); color: var(--c-ink); }

.site-nav__menu {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2.25rem);
}
.site-nav__menu a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text-muted);
}
.site-nav__menu a:hover, .site-nav__menu a:focus-visible { color: var(--c-ink); }

/* ---------------------------------------------------------------------
   7. HERO
   --------------------------------------------------------------------- */
.hero {
  padding-top: clamp(var(--space-3xl), 8vw, var(--space-5xl));
  padding-bottom: 0;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent-deep);
  margin-bottom: var(--space-lg);
}
.hero__eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--c-accent);
}

.hero__wordmark {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  /* wght explícito: f-v-s assume todos os eixos e ignoraria font-weight.
     SOFT/WONK removidos — não estão na instância carregada (index.html). */
  font-variation-settings: "opsz" 144, "wght" 600;
  font-weight: 600;
  font-size: var(--fs-display);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--c-ink);
  text-wrap: balance;
  margin-bottom: var(--space-lg);
}

/* Hierarquia em escada: wordmark (display) → tagline (h3 itálico) → statement (body).
   A tagline é a frase-âncora editorial e respira como subtítulo de capa. */
.hero__tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: var(--fs-h3);
  line-height: 1.12;
  color: var(--c-ink);
  text-wrap: balance;
  margin-bottom: var(--space-lg);
}

.hero__statement {
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--c-text);
  max-width: 54ch;
  text-wrap: pretty;
}

/* ---------------------------------------------------------------------
   8. SECTION HEAD (régua de capítulo: 01 · Rótulo ·——)
   --------------------------------------------------------------------- */
.section-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}
.section-head__num {
  flex: none;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: var(--fs-num);
  line-height: 1;
  letter-spacing: 0.05em;
  color: var(--c-accent-deep);
  font-variant-numeric: lining-nums tabular-nums;
}
.section-head__label {
  /* pode encolher e quebrar em telas estreitas (evita estouro do rótulo longo) */
  flex: 0 1 auto;
  min-width: 0;
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--fs-micro);
  line-height: 1.65;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-text-muted);
}
/* O filete pousa na baseline do RÓTULO de forma robusta entre breakpoints:
   um span vazio não tem baseline própria, então damos a ele a mesma métrica
   do label (--fs-micro) e ancoramos via ::before com baseline real. O fio em
   si fica a ~0.28em da baseline (meia altura-x da Spline Sans Mono micro),
   medida relativa ao label — não um offset fixo contra o container. */
.section-head__rule {
  flex: 1 1 auto;
  align-self: baseline;
  position: relative;
  font-size: var(--fs-micro);
  line-height: 1;
}
.section-head__rule::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.28em;
  height: 1px;
  background: var(--c-rule);
}
/* telas estreitas: rótulos longos (ex.: "ENGENHARIA & IA") podem quebrar em
   2 linhas — o filete decorativo sai de cena para o cabeçalho ler limpo */
@media (max-width: 479px) {
  .section-head { flex-wrap: wrap; }
  .section-head__rule { display: none; }
}

/* ---------------------------------------------------------------------
   9. BLOCO DE PESSOA (editorial)
   --------------------------------------------------------------------- */
.person {
  padding-block: var(--space-2xl);
}

.person__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

/* monograma / retrato column */
.person__mark {
  margin: 0;
  max-width: 240px;
}
.monogram {
  width: 100%;
  max-width: 240px;
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
}
.monogram__corners {
  opacity: 0.55;
  transition: opacity var(--dur-base) var(--ease-soft);
}
.person:hover .monogram__corners { opacity: 1; }

/* portrait (Arthur, Giorginei, Bear) — moldura dupla idêntica ao monograma */
.person__mark--portrait { max-width: 260px; }
.portrait-frame {
  position: relative;
  width: 100%;
  max-width: 240px;
  aspect-ratio: 1;
  background: var(--c-surface);
  border: 1px solid var(--c-rule-strong);
  border-radius: var(--radius-sm);
  padding: 9px;
}
.portrait-frame::after {
  content: "";
  position: absolute;
  inset: 9px;
  border: 0.75px solid var(--c-accent);
  border-radius: var(--radius-xs);
  pointer-events: none;
  opacity: 0.7;
  transition: opacity var(--dur-base) var(--ease-soft);
}
.person:hover .portrait-frame::after { opacity: 1; }
.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-xs);
  filter: saturate(0.92);
  transition: filter var(--dur-slow) var(--ease-soft);
}
.person:hover .portrait-frame img { filter: saturate(1); }

.mark__caption {
  margin-top: var(--space-sm);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  color: var(--c-text-muted);
}

/* body column */
.person__name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-h1);
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--c-ink);
  text-wrap: balance;
  margin-bottom: var(--space-sm);
}
.person__surname {
  font-style: italic;
  font-weight: 400;
}

.person__role {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--fs-micro);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent-deep);
  margin-bottom: var(--space-sm);
}
.person__role::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--c-accent);
}

.person__meta {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.04em;
  color: var(--c-text-muted);
  margin-bottom: var(--space-md);
}
.person__meta .oab {
  color: var(--c-text);
  font-weight: 500;
  font-variant-numeric: lining-nums tabular-nums;
}

.person__subhead {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: var(--fs-h3);
  line-height: 1.2;
  color: var(--c-text);
  margin-bottom: var(--space-md);
}

.person__bio {
  max-width: 60ch;
  color: var(--c-text);
  text-wrap: pretty;
  margin-bottom: var(--space-lg);
}
.person__bio a { color: var(--c-ink); font-weight: 500; }

/* tags / chips editoriais */
.person__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs);
  margin-bottom: var(--space-lg);
}
.person__tags li {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  color: var(--c-text-muted);
  /* #968762 → 3.13:1 sobre #F4F1EA: satisfaz SC 1.4.11 (limite de componente perceptível) */
  border: 1px solid #968762;
  border-radius: var(--radius-xs);
  padding: 7px 13px;
  transition: border-color var(--dur-fast) var(--ease-soft), color var(--dur-fast) var(--ease-soft);
}
.person__tags li:hover { border-color: var(--c-accent); color: var(--c-text); }

/* link-arrow CTA */
.person__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}
.link-arrow {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--fs-small);
  letter-spacing: 0.06em;
  color: var(--c-ink);
}
.link-arrow::after {
  content: "\2192"; /* → */
  margin-left: 0.5em;
  transform: translateX(0);
  transition: transform var(--dur-fast) var(--ease-soft);
}
.link-arrow:hover::after, .link-arrow:focus-visible::after { transform: translateX(4px); }

/* Bear é a seção mais leve — um respiro extra */
.person--bear { padding-block: var(--space-3xl); }

/* ---------------------------------------------------------------------
   10. SOBRE
   --------------------------------------------------------------------- */
.about {
  padding-block: var(--space-3xl);
}
.about__lead {
  position: relative;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: var(--fs-lead);
  line-height: 1.45;
  color: var(--c-ink);
  text-wrap: pretty;
  padding-top: var(--space-md);
  margin-bottom: var(--space-lg);
}
.about__lead::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 48px;
  height: 1px;
  background: var(--c-accent);
}
.about__body {
  max-width: 68ch;
  color: var(--c-text);
  text-wrap: pretty;
  margin-bottom: var(--space-md);
}
.about__body:last-child { margin-bottom: 0; }

/* ---------------------------------------------------------------------
   11. FOOTER
   --------------------------------------------------------------------- */
.site-footer {
  background-color: var(--c-surface-sunk);
  border-top: 1px solid var(--c-rule-strong);
  padding-block: var(--space-3xl) var(--space-2xl);
  margin-top: var(--space-3xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.footer__wordmark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-h2);
  letter-spacing: -0.01em;
  color: var(--c-ink);
  margin-bottom: var(--space-sm);
}

.footer__contact {
  font-style: normal;
  color: var(--c-text-muted);
  font-size: var(--fs-small);
  line-height: 1.7;
}
.footer__channel { margin-top: var(--space-sm); }
.footer__channel-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text-faint);
  margin-bottom: var(--space-3xs);
}
.footer__channel a {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.02em;
  color: var(--c-text);
}

.footer__links-title {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-text-faint);
  margin-bottom: var(--space-md);
}
.footer__links ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xs);
}
.footer__links a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.04em;
  color: var(--c-text-muted);
}
.footer__links a:hover, .footer__links a:focus-visible { color: var(--c-ink); }

.footer__legal {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  color: var(--c-text-faint);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--c-rule);
  font-variant-numeric: lining-nums;
}

/* ---------------------------------------------------------------------
   12. REVEAL-ON-SCROLL (progressive enhancement)
   só esconde quando JS confirma suporte + motion permitido (.reveal--armed)
   --------------------------------------------------------------------- */
.reveal--armed {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}
.reveal--armed.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------------------------------------------------------------------
   13. RESPONSIVO
   --------------------------------------------------------------------- */

/* md — tablet */
@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: var(--space-2xl);
  }
}

/* md+ — tablet: já aproveita a largura com 2 colunas (sem sticky) */
@media (min-width: 900px) {
  .person__grid {
    grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
  }
}

/* lg — desktop: coluna do monograma justa, placa ancorada ao topo do nome */
@media (min-width: 1024px) {
  .person__grid {
    gap: clamp(2rem, 4vw, 3.5rem);
  }
  .person__mark { max-width: 100%; }
  .monogram, .portrait-frame { max-width: 260px; }
  .person { padding-block: var(--space-4xl); }
  .person--bear { padding-block: var(--space-4xl); }
}

/* xl — desktop largo */
@media (min-width: 1280px) {
  .hero { padding-top: var(--space-5xl); }
}

/* mobile nav (<768px): menu colapsa atrás do botão "Índice".
   Estado COLAPSADO é o default (sem depender de .js) → primeira pintura já
   mostra o toggle e esconde o menu, eliminando o flash/reflow do no-JS nav. */
@media (max-width: 767px) {
  .site-nav__toggle { display: inline-flex; }

  .site-nav__menu {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--c-surface);
    border-bottom: 1px solid var(--c-rule-strong);
    box-shadow: var(--shadow-paper);
    padding: var(--space-2xs) var(--gutter) var(--space-md);
    /* default: colapsado */
    display: none;
  }
  .site-nav__menu.is-open { display: flex; }

  .site-nav { position: static; }
  .site-header__inner { position: relative; }

  .site-nav__menu li { border-top: 1px solid var(--c-rule); }
  .site-nav__menu a {
    width: 100%;
    min-height: 52px;
    letter-spacing: 0.1em;
  }

  /* sem JS (o snippet no <head> nunca rodou): o toggle é inerte, então
     escondemos o botão e exibimos o menu inline como degradação acessível */
  .no-js .site-nav__toggle { display: none; }
  .no-js .site-nav__menu {
    position: static;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-sm);
    background: transparent;
    border: 0;
    box-shadow: none;
    padding: 0;
  }
  .no-js .site-nav__menu li { border-top: 0; }
  .no-js .site-nav__menu a { width: auto; min-height: 44px; }
}

/* ---------------------------------------------------------------------
   14. PREFERS-REDUCED-MOTION
   --------------------------------------------------------------------- */
@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;
    scroll-behavior: auto !important;
  }
  .reveal, .reveal--armed {
    opacity: 1 !important;
    transform: none !important;
  }
}