/* ==========================================================
   Memórias do Futuro — hub (registo claro)
   Serve https://memoriasdofuturo.miguelcarloslima.com/
   Paleta e tipografia ecoam o cidadart-website (miguelcarloslima.com),
   como ponte visual entre as duas propriedades — ficheiro próprio porque
   os dois sites vivem em domínios distintos e não podem partilhar CSS.
   ========================================================== */

:root {
  --color-bg: #f7f4ef;
  --color-paper: #fffdf8;
  --color-text: #151515;
  --color-muted: #6f6a64;
  --color-accent: #8f1118;
  --color-accent-dark: #4b090d;
  --color-green: #3f6b4c;
  --color-line: #d8d1c7;
  --color-black: #0d0d0d;
  --max-width: 1180px;
  --shadow: 0 24px 70px rgba(21, 21, 21, 0.08);
}

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

body {
  margin: 0;
  background:
    radial-gradient(circle at 14% 10%, rgba(143, 17, 24, 0.05), transparent 26rem),
    linear-gradient(135deg, rgba(255,255,255,0.55), rgba(247,244,239,0.9)),
    var(--color-bg);
  color: var(--color-text);
  font-family: Inter, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 220ms ease, border-color 220ms ease, transform 220ms ease; }
a:focus-visible, button:focus-visible { outline: 3px solid rgba(143, 17, 24, 0.35); outline-offset: 4px; }

.skip-link {
  position: absolute; left: 1rem; top: 1rem; z-index: 999;
  background: var(--color-black); color: #fff; padding: 0.75rem 1rem;
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Cabeçalho */
.site-header {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  padding: 1rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid rgba(216, 209, 199, 0.75);
  background: rgba(247, 244, 239, 0.86);
  backdrop-filter: blur(18px);
}
.brand {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
  line-height: 1; letter-spacing: -0.03em; white-space: nowrap;
}
.brand__texto { display: inline-flex; align-items: baseline; gap: 0.4rem; }
.brand__panda { flex: none; width: 30px; height: 30px; }
.brand--small .brand__panda { width: 24px; height: 24px; }
.brand__futuro { color: var(--color-accent); font-weight: 600; }
.brand__memorias { color: var(--color-black); font-weight: 400; }
.brand--small { font-size: 1.25rem; }
.brand__origem {
  font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--color-muted); border-left: 1px solid var(--color-line);
  padding-left: 0.85rem; margin-left: 0.2rem;
}

.site-nav { display: flex; align-items: center; gap: clamp(0.6rem, 1.4vw, 1.3rem); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.09em; }
.site-nav a { padding: 0.55rem 0; border-bottom: 1px solid transparent; color: var(--color-muted); }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--color-accent); border-bottom-color: var(--color-accent); }

/* Hero */
.hero {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(2rem, 5vw, 3.5rem);
  display: grid; gap: 1.15rem;
}
.eyebrow { color: var(--color-accent); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; }
h1, h2, h3 { font-family: Georgia, "Times New Roman", serif; margin: 0; color: var(--color-text); }
h1 { font-size: clamp(2.6rem, 6.4vw, 5.2rem); line-height: 0.98; letter-spacing: -0.05em; max-width: 900px; }
h2 { font-size: clamp(1.9rem, 3.6vw, 3rem); line-height: 1.04; letter-spacing: -0.04em; }
h3 { font-size: clamp(1.2rem, 2vw, 1.55rem); line-height: 1.15; }
p { margin: 0; font-size: clamp(1rem, 1.35vw, 1.1rem); line-height: 1.72; }
.hero__lead { max-width: 720px; color: #34312d; font-size: clamp(1.1rem, 1.8vw, 1.35rem); }
.hero__meta { display: flex; flex-wrap: wrap; gap: 0.6rem 1.5rem; color: var(--color-muted); font-size: 0.92rem; padding-top: 0.4rem; }
.hero__meta strong { color: var(--color-text); }

.button-row { display: flex; flex-wrap: wrap; gap: 0.85rem; padding-top: 0.6rem; }
.button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px;
  padding: 0.85rem 1.2rem; border: 1px solid var(--color-accent);
  background: var(--color-accent); color: #fff; font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
}
.button:hover { background: var(--color-accent-dark); border-color: var(--color-accent-dark); transform: translateY(-2px); }
.button--secondary { background: transparent; color: var(--color-accent); }
.button--secondary:hover { color: #fff; background: var(--color-accent); }

/* Secções */
.section { width: min(var(--max-width), calc(100% - 2rem)); margin: 0 auto; padding: clamp(2.5rem, 6vw, 5rem) 0; scroll-margin-top: 76px; }
.section__intro { display: grid; gap: 0.9rem; max-width: 760px; margin-bottom: clamp(1.8rem, 4vw, 3rem); }
.section__intro p:last-child { color: var(--color-muted); }

/* Grelha de artefactos (dinâmica, ver projetos.js) */
.artefacto-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1.15rem; }
.artefacto-card {
  background: rgba(255, 253, 248, 0.85);
  border: 1px solid var(--color-line);
  box-shadow: 0 12px 40px rgba(21,21,21,0.04);
  display: grid; min-height: 100%;
}
.artefacto-card__image { position: relative; overflow: hidden; border-bottom: 1px solid var(--color-line); background: #111; }
.artefacto-card__image img { width: 100%; aspect-ratio: 4/3; object-fit: cover; filter: grayscale(0.12) contrast(1.03); transition: transform 900ms ease; }
.artefacto-card__semimagem {
  width: 100%; aspect-ratio: 4/3; display: grid; place-items: center;
  background:
    repeating-linear-gradient(135deg, rgba(143,17,24,0.06) 0 2px, transparent 2px 14px),
    #14130f;
}
.artefacto-card__semimagem svg { width: 30%; opacity: 0.5; }
.artefacto-card:hover .artefacto-card__image img { transform: scale(1.04); }
.artefacto-card__tag {
  position: absolute; top: 0.75rem; left: 0.75rem;
  background: var(--color-accent); color: #fff; font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase; padding: 0.35rem 0.6rem;
}
.artefacto-card__tag--em-breve { background: rgba(13,13,13,0.72); }
.artefacto-card__body { display: grid; gap: 0.8rem; padding: 1.3rem; align-content: start; }
.artefacto-card__body p:not(.eyebrow) { color: var(--color-muted); font-size: 0.98rem; }
.artefacto-card__number { font-family: Georgia, serif; font-size: 0.85rem; color: var(--color-muted); letter-spacing: 0.08em; }

.text-link {
  display: inline-flex; width: fit-content; border-bottom: 1px solid var(--color-accent);
  color: var(--color-accent); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
}
.text-link:hover { color: var(--color-accent-dark); border-bottom-color: var(--color-accent-dark); transform: translateX(3px); }

.theme-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1rem; }
.theme-card { background: rgba(255,253,248,0.82); border: 1px solid var(--color-line); padding: clamp(1.2rem, 2.5vw, 1.9rem); display: grid; gap: 0.8rem; }
.theme-card p { color: var(--color-muted); }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity 700ms ease, transform 700ms ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

.site-footer {
  width: min(var(--max-width), calc(100% - 2rem)); margin: 0 auto; padding: 2rem 0 3rem;
  border-top: 1px solid var(--color-line);
  display: flex; align-items: flex-start; justify-content: space-between; gap: 2rem; color: var(--color-muted);
}
.site-footer p { font-size: 0.92rem; }
.footer-meta { text-align: right; display: grid; gap: 0.35rem; }
.footer-meta a { color: var(--color-accent); }
.footer-meta strong { color: var(--color-accent); font-variant-numeric: tabular-nums; }

@media (max-width: 900px) {
  .artefacto-grid, .theme-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 640px) {
  .site-header { flex-wrap: wrap; }
  .brand__origem { display: none; }
  .artefacto-grid, .theme-grid { grid-template-columns: 1fr; }
  .button-row { display: grid; }
  .button { width: 100%; }
  .site-footer { flex-direction: column; }
  .footer-meta { text-align: left; }
}