/* CBFP — Comunidade Brasileira de Futuros Plurais
   Folha de estilos do site, a partir do design system oficial da CBFP.
   Tokens: paleta oficial, temas noite/papel, Open Sans + Space Grotesk. */

/* ---------- Fontes ---------- */
@font-face { font-family: "Open Sans"; src: url("../fonts/OpenSans-Variable.woff2") format("woff2"); font-weight: 300 800; font-style: normal; font-display: swap; }
@font-face { font-family: "Open Sans"; src: url("../fonts/OpenSans-Italic-Variable.woff2") format("woff2"); font-weight: 300 800; font-style: italic; font-display: swap; }
@font-face { font-family: "Space Grotesk"; src: url("../fonts/SpaceGrotesk-Variable.woff2") format("woff2"); font-weight: 300 700; font-style: normal; font-display: swap; }

/* ---------- Tokens ---------- */
:root {
  /* paleta oficial */
  --rosa: #ef426f; --amarelo: #f9cd1e; --agua: #8ec2bb; --noite: #21265c;
  --mata: #395f4f; --mata-profunda: #1e2f23; --papel: #f6f4f0; --branco: #ffffff;

  --font-display: "Space Grotesk", "Open Sans", system-ui, sans-serif;
  --font-sans: "Open Sans", system-ui, -apple-system, "Segoe UI", sans-serif;

  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px; --space-5: 24px;
  --space-6: 32px; --space-7: 48px; --space-8: 64px; --space-9: 96px;
  --stroke-hairline: 1px; --stroke-control: 2px; --stroke-frame: 4px;

  --wrap: 1180px;
  --gutter: clamp(var(--space-5), 5vw, var(--space-8));

  /* tema papel (padrão do conteúdo) */
  --surface: var(--papel); --surface-raised: #ffffff;
  --ink: var(--noite); --ink-muted: #565a81; --accent: var(--rosa); --accent-text: #bf3559;
  --action: var(--noite); --on-action: var(--papel);
  --line: rgba(33,38,92,.18); --line-strong: #565a81; --focus: #bf3559;
}
.tema-noite, .cbfp-grad {
  --surface: var(--noite); --surface-raised: #2e3366;
  --ink: var(--papel); --ink-muted: #b6b6c4; --accent-text: #f47b9a;
  --action: var(--amarelo); --on-action: var(--noite);
  --line: rgba(246,244,240,.22); --line-strong: #b6b6c4; --focus: var(--amarelo);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
body { margin: 0; background: var(--noite); color: var(--ink); font-family: var(--font-sans); font-size: 16px; line-height: 26px; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
p { margin: 0 0 var(--space-5); }
p:last-child { margin-bottom: 0; }
strong { font-weight: 700; }
:focus-visible { outline: var(--stroke-control) solid var(--focus); outline-offset: 2px; border-radius: 2px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: var(--space-4); top: -100px; z-index: 100; background: var(--amarelo); color: var(--noite); padding: var(--space-3) var(--space-5); font-weight: 700; text-decoration: none; }
.skip-link:focus { top: var(--space-4); }

.wrap { width: 100%; max-width: calc(var(--wrap) + 2 * var(--gutter)); margin: 0 auto; padding: 0 var(--gutter); }
.section { background: var(--surface); color: var(--ink); padding: var(--space-9) 0; }
.section--papel { --surface: var(--papel); }

/* ---------- Gradientes oficiais (receitas CSS) ---------- */
.cbfp-grad { position: relative; isolation: isolate; overflow: hidden; color: var(--branco); background-color: var(--noite); }
.cbfp-grad-noite {
  background-image:
    radial-gradient(80% 75% at 100% 0%, color-mix(in srgb, var(--agua) 85%, transparent), transparent 75%),
    radial-gradient(75% 70% at 0% 100%, color-mix(in srgb, var(--rosa) 88%, transparent), transparent 75%),
    radial-gradient(45% 40% at 100% 100%, color-mix(in srgb, var(--amarelo) 70%, transparent), transparent 75%);
}
.cbfp-grad-noite-rosa {
  background-image:
    radial-gradient(80% 75% at 100% 0%, color-mix(in srgb, var(--rosa) 72%, transparent), transparent 75%),
    radial-gradient(65% 55% at 25% 100%, color-mix(in srgb, var(--agua) 48%, transparent), transparent 75%);
}
.cbfp-grad-horizonte {
  background-image:
    radial-gradient(34% 75% at 0% 25%, color-mix(in srgb, var(--rosa) 62%, transparent), transparent 75%),
    radial-gradient(32% 70% at 100% 62%, color-mix(in srgb, var(--agua) 95%, transparent), transparent 75%);
}

/* ---------- Tipografia ---------- */
.rotulo { font-family: var(--font-sans); font-weight: 700; font-size: 12px; line-height: 16px; letter-spacing: .08em; text-transform: uppercase; margin: 0 0 var(--space-2); }
.lead { font-size: 20px; line-height: 30px; }
.corpo-pequeno { font-size: 14px; line-height: 22px; }
.manifesto { font-family: var(--font-display); font-weight: 700; font-size: clamp(32px, 5.2vw, 56px); line-height: 1.06; letter-spacing: .01em; text-transform: uppercase; margin: 0; }
.titulo-secao { font-family: var(--font-display); font-weight: 400; font-size: clamp(36px, 5vw, 56px); line-height: 1.05; letter-spacing: .01em; text-transform: uppercase; text-decoration: underline; text-decoration-thickness: var(--stroke-control); text-underline-offset: .14em; margin: 0; }
.titulo-card { font-family: var(--font-display); font-weight: 600; font-size: 22px; line-height: 1.2; margin: 0; }
.section-head { display: grid; gap: var(--space-5); margin-bottom: var(--space-7); max-width: 72ch; }
.section-head p { color: var(--ink-muted); }
.muted { color: var(--ink-muted); }
.prose { max-width: 66ch; }
.prose a:not(.btn) { color: var(--accent-text); text-decoration-thickness: 1px; text-underline-offset: .2em; }
.prose a:not(.btn):hover { text-decoration-thickness: 2px; }
.prose h2 { font-family: var(--font-display); font-weight: 600; font-size: 28px; line-height: 1.2; margin: 0 0 var(--space-5); }
.prose * + h2 { margin-top: var(--space-7); }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-family: var(--font-sans); font-weight: 700; font-size: 14px; line-height: 20px;
  letter-spacing: .06em; text-transform: uppercase; text-decoration: none;
  padding: var(--space-3) var(--space-5); border: var(--stroke-control) solid transparent; border-radius: 0; cursor: pointer;
  transition: background-color .15s, border-color .15s, filter .15s;
}
.btn-primary { background: var(--action); color: var(--on-action); }
.btn-primary:hover { filter: brightness(1.07); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-secondary:hover { border-color: var(--ink); }
.btn-ghost { background: transparent; color: var(--ink); padding-left: 0; padding-right: 0; text-decoration: underline; text-decoration-thickness: var(--stroke-control); text-underline-offset: .3em; }
.btn[aria-disabled="true"] { opacity: .5; cursor: not-allowed; }
.btn .seta { font-family: var(--font-display); font-weight: 600; }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-4); }

/* ---------- Cabeçalho ---------- */
.site-header { position: relative; z-index: 10; color: var(--branco); }
.site-header--sobre { position: absolute; top: 0; left: 0; right: 0; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); padding-top: var(--space-6); padding-bottom: var(--space-6); }
.site-logo { display: block; line-height: 0; flex: none; }
.site-logo img { height: 56px; width: auto; }
.nav { display: flex; align-items: center; gap: var(--space-6); }
.nav ul { display: flex; gap: var(--space-6); list-style: none; margin: 0; padding: 0; }
.nav a:not(.btn) { font-weight: 700; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; text-decoration: none; padding: var(--space-2) 0; border-bottom: var(--stroke-control) solid transparent; }
.nav a:not(.btn):hover, .nav a[aria-current="page"] { border-bottom-color: currentColor; }
.nav-toggle { display: none; background: none; border: var(--stroke-control) solid rgba(255,255,255,.6); color: var(--branco); width: 44px; height: 44px; padding: 0; cursor: pointer; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { display: block; width: 20px; height: 2px; background: currentColor; margin: 0 auto; position: relative; content: ""; }
.nav-toggle span::before { position: absolute; top: -6px; } .nav-toggle span::after { position: absolute; top: 6px; }
@media (max-width: 900px) {
  .site-logo img { height: 48px; }
  .nav-toggle { display: block; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; gap: var(--space-5); padding: var(--space-5) var(--gutter) var(--space-6); background: var(--noite); border-top: 1px solid rgba(246,244,240,.22); }
  .nav.is-open { display: flex; }
  .nav ul { flex-direction: column; gap: 0; }
  .nav ul a:not(.btn) { display: block; padding: var(--space-4) 0; border-bottom: 1px solid rgba(246,244,240,.22); font-size: 14px; }
}

/* ---------- Hero da home ---------- */
.hero { min-height: min(92vh, 900px); display: flex; flex-direction: column; }
.hero__body { flex: 1; display: flex; align-items: center; padding-top: calc(120px + var(--space-7)); padding-bottom: var(--space-9); }
.hero__grid { display: grid; gap: var(--space-6); max-width: 820px; }
.hero__tagline { font-size: 20px; line-height: 30px; margin: 0; max-width: 46ch; color: rgba(255,255,255,.88); }
.hero__text { max-width: 66ch; }
.hero__links { display: flex; flex-wrap: wrap; gap: var(--space-3) var(--space-6); list-style: none; margin: 0; padding: 0; }
.hero__links a { color: var(--branco); }
.hero__note { font-size: 14px; line-height: 22px; color: rgba(255,255,255,.82); max-width: 60ch; margin: 0; }
.hero__actions { display: grid; gap: var(--space-5); }

/* ---------- Formas do símbolo ---------- */
.forma { width: 28px; height: 28px; display: block; fill: var(--accent); flex: none; }

/* ---------- Propósitos ---------- */
.propositos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: var(--stroke-hairline) solid var(--line); }
.proposito { padding: var(--space-6) var(--space-6) var(--space-6) 0; display: flex; flex-direction: column; gap: var(--space-4); }
.proposito + .proposito { padding-left: var(--space-6); border-left: var(--stroke-hairline) solid var(--line); }
.proposito__topo { display: flex; justify-content: space-between; align-items: flex-start; }
.proposito__n { font-family: var(--font-display); font-weight: 600; font-size: 48px; line-height: 1; color: var(--accent); }
.proposito p { color: var(--ink-muted); font-size: 15px; line-height: 24px; }
@media (max-width: 1000px) {
  .propositos { grid-template-columns: 1fr 1fr; }
  .proposito:nth-child(3) { padding-left: 0; border-left: 0; }
  .proposito:nth-child(n+3) { border-top: var(--stroke-hairline) solid var(--line); }
}
@media (max-width: 600px) {
  .propositos { grid-template-columns: 1fr; }
  .proposito, .proposito + .proposito { padding: var(--space-6) 0; border-left: 0; }
  .proposito + .proposito { border-top: var(--stroke-hairline) solid var(--line); }
}

/* ---------- Licença ---------- */
.licenca { display: flex; gap: var(--space-4); align-items: flex-start; padding: var(--space-5); border: var(--stroke-hairline) solid var(--line); max-width: 80ch; margin-bottom: var(--space-7); font-size: 15px; line-height: 24px; }
.licenca__selo { flex: none; font-family: var(--font-display); font-weight: 600; font-size: 13px; letter-spacing: .04em; padding: var(--space-1) var(--space-2); border: var(--stroke-control) solid currentColor; white-space: nowrap; }
.licenca a { color: var(--accent-text); }
@media (max-width: 600px) { .licenca { flex-direction: column; } }

/* ---------- Cartões de produção ---------- */
.producoes { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); list-style: none; margin: 0; padding: 0; }
.producoes--3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1000px) { .producoes, .producoes--3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .producoes, .producoes--3 { grid-template-columns: 1fr; } }
.card { display: flex; flex-direction: column; gap: var(--space-4); text-decoration: none; color: var(--ink); height: 100%; }
.card__media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; outline: var(--stroke-frame) solid transparent; outline-offset: -4px; transition: outline-color .15s; }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.card__media--retrato { background: var(--noite); }
.card__media--retrato img { object-fit: cover; object-position: 50% 42%; }
.card:hover .card__media, .card:focus-visible .card__media { outline-color: var(--amarelo); }
.card:hover .card__media img { transform: scale(1.03); }
.card__meta { font-size: 13px; line-height: 20px; color: var(--ink-muted); margin: 0; }
.card__mais { margin-top: auto; font-weight: 700; font-size: 13px; letter-spacing: .06em; text-transform: uppercase; text-decoration: underline; text-decoration-thickness: var(--stroke-control); text-underline-offset: .3em; }
.card:focus-visible { outline: none; }

/* fundo de reserva das imagens: gradiente noite enquanto a imagem carrega */
.media-fallback {
  background-color: var(--noite);
  background-image:
    radial-gradient(80% 75% at 100% 0%, color-mix(in srgb, var(--agua) 70%, transparent), transparent 75%),
    radial-gradient(75% 70% at 0% 100%, color-mix(in srgb, var(--rosa) 70%, transparent), transparent 75%);
}

/* ---------- Chamada final ---------- */
.cta { padding: var(--space-9) 0; }
.cta .wrap { display: grid; gap: var(--space-6); justify-items: start; }
.cta .manifesto { max-width: 18ch; }
.cta p { max-width: 60ch; color: rgba(255,255,255,.88); margin: 0; }

/* ---------- Rodapé ---------- */
.site-footer { background: var(--noite); color: var(--papel); padding: var(--space-8) 0 var(--space-6); border-top: var(--stroke-hairline) solid rgba(246,244,240,.22); }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--space-7); }
.footer__grid img { height: 64px; width: auto; }
.footer__grid h2 { font-size: 12px; line-height: 16px; letter-spacing: .08em; text-transform: uppercase; font-weight: 700; margin: 0 0 var(--space-4); color: #b6b6c4; }
.footer__grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-2); }
.footer__grid a { text-decoration: none; }
.footer__grid a:hover { text-decoration: underline; text-underline-offset: .2em; }
.footer__tag { margin-top: var(--space-5); color: #b6b6c4; font-size: 14px; line-height: 22px; max-width: 36ch; }
.footer__contato { margin-top: var(--space-4); font-size: 14px; line-height: 22px; color: #b6b6c4; }
.footer__contato a { color: var(--papel); text-decoration: underline; text-underline-offset: .2em; }
.footer__base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-4); margin-top: var(--space-8); padding-top: var(--space-5); border-top: var(--stroke-hairline) solid rgba(246,244,240,.22); font-size: 13px; line-height: 20px; color: #b6b6c4; }
.footer__base a { color: var(--papel); }
@media (max-width: 800px) { .footer__grid { grid-template-columns: 1fr; gap: var(--space-6); } }

/* ---------- Páginas de produção ---------- */
.page-hero { padding-bottom: var(--space-8); }
.page-hero__body { padding-top: calc(120px + var(--space-6)); display: grid; gap: var(--space-5); }
.breadcrumb { font-weight: 700; font-size: 12px; line-height: 16px; letter-spacing: .08em; text-transform: uppercase; margin: 0; }
.breadcrumb a { text-decoration: none; color: rgba(255,255,255,.8); }
.breadcrumb a:hover { color: var(--branco); text-decoration: underline; }
.breadcrumb span[aria-hidden] { margin: 0 var(--space-2); color: rgba(255,255,255,.5); }
.page-hero__date { margin: 0; color: rgba(255,255,255,.85); }

.artigo { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: var(--space-8); align-items: start; }
.artigo__media { position: sticky; top: var(--space-6); }
.artigo__media .frame { outline: var(--stroke-frame) solid var(--noite); outline-offset: -4px; }
.artigo__media figcaption { margin-top: var(--space-3); font-size: 13px; line-height: 20px; color: var(--ink-muted); }
.artigo .btn-row { margin-top: var(--space-6); }
@media (max-width: 900px) { .artigo { grid-template-columns: minmax(0, 1fr); gap: var(--space-7); } .artigo__media { position: static; order: -1; } }
.pergunta { font-family: var(--font-display); font-weight: 600; font-size: clamp(24px, 3vw, 32px); line-height: 1.2; margin: 0 0 var(--space-6); }

/* Diálogos */
.encontros { list-style: none; margin: 0; padding: 0; display: grid; }
.encontro { display: grid; grid-template-columns: 360px minmax(0, 1fr); align-items: start; gap: var(--space-7); padding: var(--space-7) 0; border-top: var(--stroke-hairline) solid var(--line); }
.encontro:last-child { border-bottom: var(--stroke-hairline) solid var(--line); }
.encontro__media img { width: 100%; height: auto; }
.encontro__titulo { font-family: var(--font-display); font-weight: 600; font-size: 26px; line-height: 1.2; margin: 0 0 var(--space-2); }
.encontro__titulo span { display: block; font-weight: 400; color: var(--ink-muted); font-size: 20px; margin-top: var(--space-1); }
.encontro__meta { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-5); margin: 0 0 var(--space-5); font-size: 14px; line-height: 22px; color: var(--ink-muted); }
.encontro__meta dt { display: inline; font-weight: 700; color: var(--ink); }
.encontro__meta dd { display: inline; margin: 0; }
.encontro__texto { max-width: 66ch; margin-bottom: var(--space-5); }
@media (max-width: 860px) { .encontro { grid-template-columns: minmax(0, 1fr); gap: var(--space-5); } .encontro__media { max-width: 480px; } }

/* Glossário: créditos */
.creditos { margin-top: var(--space-8); padding-top: var(--space-6); border-top: var(--stroke-hairline) solid var(--line); }
.creditos ul { list-style: none; margin: var(--space-5) 0 0; padding: 0; columns: 3 220px; column-gap: var(--space-6); }
.creditos li { padding: var(--space-2) 0; border-bottom: var(--stroke-hairline) solid var(--line); break-inside: avoid; font-size: 15px; line-height: 24px; }

/* Outras produções */
.outras { padding-top: var(--space-8); }