:root {
  --color-bg: #0d0d0d;
  --color-text: #f2efe9;
  --color-muted: #8a8580;
  --color-accent: #FEEE73;
  --rule: color-mix(in srgb, var(--color-muted) 40%, transparent);

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 32px;
  --space-4: 64px;
  --space-5: 128px;

  --font-display: "Anton", Impact, sans-serif;
  --font-text: "Inter Tight", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --gutter: var(--space-3);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-wipe: cubic-bezier(0.77, 0, 0.175, 1);

  color-scheme: dark;
}

@media (max-width: 767px) {
  :root {
    --gutter: var(--space-2);
  }
}

/* Reset */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-text);
  font-size: 18px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: clip;
}

main {
  flex: 1;
}

h1,
h2,
p,
ul,
ol,
dl,
figure {
  margin: 0;
}

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

picture {
  display: contents;
}

img,
iframe {
  display: block;
  max-width: 100%;
}

button {
  font: inherit;
  color: inherit;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a,
button {
  touch-action: manipulation;
  -webkit-tap-highlight-color: color-mix(in srgb, var(--color-accent) 25%, transparent);
  transition:
    color 150ms var(--ease-out),
    outline-color 150ms var(--ease-out),
    outline-offset 150ms var(--ease-out);
}

/* O contorno transparente só existe fora do modo de contraste forçado (onde ficaria sempre visível) */
@media (forced-colors: none) {
  a,
  button {
    outline: 2px solid transparent;
    outline-offset: 8px;
  }
}

a:hover,
a:focus-visible {
  color: var(--color-accent);
}

:focus-visible {
  outline-color: var(--color-accent);
  outline-offset: 4px;
}

/* Ações iniciadas pelo teclado não animam */
a:focus-visible,
button:focus-visible,
.next:focus-visible .next-title,
.video-play:focus-visible img,
.video-play:focus-visible span,
.index-link:focus-visible .index-title {
  transition-duration: 0s;
}

/* Tipografia */

h1,
h2,
.hero-title,
.index-title,
.next-title,
.site-footer-motto {
  text-wrap: balance;
}

/* Títulos com view-transition-name: a caixa acompanha o texto, para o título escalar entre páginas */
.project-head h1,
.index-title,
.next-title {
  width: fit-content;
  max-width: 100%;
}

h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(3rem, 12vw, 6rem);
  line-height: 1;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

@media (min-width: 768px) {
  h1 {
    font-size: clamp(2.5rem, 6vw, 8rem);
  }
}

.meta {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Saltar para o conteúdo */

.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -100px;
  z-index: 10;
  padding: var(--space-1) var(--space-2);
  background: var(--color-accent);
  color: var(--color-bg);
}

.skip-link:focus-visible {
  top: var(--space-1);
  color: var(--color-bg);
}

/* Header */

.site-header {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0 var(--space-3);
  padding: var(--space-1) var(--gutter);
  border-bottom: 1px solid var(--rule);
}

.site-logo {
  display: block;
  padding: 12px 0;
}

.site-logo img {
  height: 24px;
  width: auto;
}

@media (min-width: 768px) {
  .site-logo img {
    height: 32px;
  }
}

.site-logo:hover,
.site-logo:focus-visible {
  color: inherit;
}

.site-nav {
  flex-basis: 100%;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0 var(--space-3);
}

.site-nav a,
.menu-toggle {
  display: inline-block;
  padding: 12px 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--color-accent);
}

.menu-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
}

.menu-toggle:hover,
.menu-toggle:focus-visible,
.menu-toggle[aria-expanded="true"] {
  color: var(--color-accent);
}

@media (min-width: 768px) {
  .site-nav {
    flex-basis: auto;
  }

  .site-nav li + li {
    padding-left: var(--space-3);
    border-left: 1px solid var(--rule);
  }

  .site-footer-links a + a {
    padding-left: var(--space-3);
    border-left: 1px solid var(--rule);
  }
}

/* Menu em telemóvel: só colapsa com JS ativo */

@media (max-width: 767px) {
  .js .menu-toggle {
    display: inline-block;
  }

  .js .site-nav {
    display: none;
    order: 3;
    opacity: 0;
    translate: 0 -8px;
    /* saída mais curta do que a entrada */
    transition:
      opacity 100ms var(--ease-out),
      translate 100ms var(--ease-out),
      display 100ms allow-discrete;
  }

  .js .site-nav.is-open {
    display: block;
    opacity: 1;
    translate: 0;
    transition-duration: 160ms;
  }

  @starting-style {
    .js .site-nav.is-open {
      opacity: 0;
      translate: 0 -8px;
    }
  }

  .js .site-nav ul {
    flex-direction: column;
  }

  .js .site-nav li + li {
    border-top: 1px solid var(--rule);
  }

  .js .site-nav a {
    display: block;
    padding: var(--space-2) 0;
    font-family: var(--font-display);
    font-size: 2rem;
    line-height: 1;
    letter-spacing: 0;
  }
}

/* Footer */

.site-footer {
  margin-top: var(--space-5);
  border-top: 1px solid var(--rule);
}

.site-footer-motto {
  padding: var(--space-4) var(--gutter) var(--space-3);
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 8rem);
  line-height: 1;
  text-transform: uppercase;
  color: var(--color-muted);
}

.site-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0 var(--space-3);
  padding: var(--space-1) var(--gutter);
  border-top: 1px solid var(--rule);
}

.site-footer-links a {
  display: inline-block;
  padding: 12px 0;
  text-decoration: none;
}

/* Página de projeto */

.project-head {
  padding: var(--space-4) var(--gutter) var(--space-3);
}

/* Ficha técnica: grelha com divisórias de 1px */

.project-data {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin-bottom: var(--space-3);
  background: var(--rule);
  border: 1px solid var(--rule);
}

.project-data > div {
  padding: var(--space-1) var(--space-2);
  background: var(--color-bg);
}

.project-data dt {
  color: var(--color-muted);
}

.project-data dd {
  margin: 0;
  color: var(--color-text);
}

.project-data .year {
  color: var(--color-accent);
}

@media (min-width: 768px) {
  .project-data {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Vídeo YouTube: capa + iframe só ao clicar */

.video {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #000;
}

.video-play,
.video iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-play {
  display: block;
  color: var(--color-bg);
  text-decoration: none;
}

.video-play img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: scale 400ms var(--ease-out);
}

.video-play span {
  position: absolute;
  left: var(--gutter);
  bottom: var(--gutter);
  padding: var(--space-1) var(--space-2);
  background: var(--color-accent);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 3rem);
  line-height: 1;
  text-transform: uppercase;
  transition:
    background-color 150ms var(--ease-out),
    translate 200ms var(--ease-out),
    scale 120ms var(--ease-out);
}

.video-play:hover,
.video-play:focus-visible {
  color: var(--color-bg);
}

.video-play:focus-visible {
  outline-offset: -6px;
}

.video-play:hover span,
.video-play:focus-visible span,
.video-play:active span {
  background: var(--color-text);
}

.video-play:active span {
  scale: 0.97;
  transform-origin: left bottom;
}

@media (prefers-reduced-motion: no-preference) {
  .video-play:hover img,
  .video-play:focus-visible img {
    scale: 1.02;
  }

  .video-play:hover span,
  .video-play:focus-visible span {
    translate: 0 -4px;
  }

  .video-play:active span {
    translate: 0;
  }
}

/* Imagens: uma coluna, todas a 80% e centradas (100% em telemóvel) */

.project-media {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.project-media figure {
  width: 80%;
  margin-inline: auto;
}

.project-media img {
  width: 100%;
  height: auto;
}

.project-media figcaption {
  padding-top: var(--space-1);
}

@media (max-width: 767px) {
  .project-media {
    gap: var(--space-3);
    margin-top: var(--space-3);
  }

  .project-media figure {
    width: 100%;
  }

  .project-media figcaption {
    padding-inline: var(--gutter);
  }
}

/* Sem vídeo: a primeira imagem fica à mesma distância do título que o vídeo */

.project-head + .project-media {
  margin-top: 0;
}

/* Projeto seguinte */

.next {
  display: block;
  margin: var(--space-5) var(--gutter) 0;
  padding-top: var(--space-2);
  border-top: 2px solid var(--color-text);
  text-decoration: none;
}

.next-title {
  display: block;
  margin-top: var(--space-1);
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 8rem);
  line-height: 1;
  text-transform: uppercase;
}

.next {
  transition:
    color 150ms var(--ease-out),
    border-color 150ms var(--ease-out),
    outline-color 150ms var(--ease-out),
    outline-offset 150ms var(--ease-out);
}

.next-title {
  transition: translate 250ms var(--ease-out);
}

.next:hover,
.next:focus-visible {
  border-top-color: var(--color-accent);
}

@media (prefers-reduced-motion: no-preference) {
  .next:hover .next-title,
  .next:focus-visible .next-title {
    translate: var(--space-2) 0;
  }
}

/* Home: header com imagem + índice tipográfico */

.hero img {
  width: 100%;
  height: auto;
}

.hero-text {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-3) var(--gutter);
}

.index-label {
  padding: var(--space-4) var(--gutter) var(--space-2);
}

.index {
  border-top: 2px solid var(--color-text);
}

.index li {
  border-bottom: 1px solid var(--rule);
}

.index-link {
  display: block;
  padding: var(--space-3) var(--gutter);
  text-decoration: none;
}

.index-year {
  display: block;
  margin-bottom: var(--space-1);
}

.index-title {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(3rem, 12vw, 14rem);
  line-height: 1;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  transition: color 150ms var(--ease-out);
}

.index-link:hover .index-title,
.index-link:focus-visible .index-title {
  color: var(--color-accent);
}

.index-img {
  display: block;
  width: 100%;
  height: auto;
  margin-top: var(--space-2);
  border: 1px solid var(--rule);
}

/* Desktop com rato: a imagem aparece e segue o cursor (ou o foco).
   Em ecrãs tácteis o hover esconderia o link atrás de um primeiro toque, por isso ficam os cartões */

@media (min-width: 768px) and (hover: hover) and (pointer: fine) {
  .index-img {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 5;
    width: 30vw;
    margin: 0;
    border: 0;
    pointer-events: none;
    opacity: 0;
    scale: 0.97;
    visibility: hidden;
    translate: 55vw 30vh;
    /* saída mais curta e subtil do que a entrada */
    transition:
      opacity 120ms var(--ease-out),
      scale 120ms var(--ease-out),
      visibility 0s linear 120ms;
  }

  .index-link:hover .index-img,
  .index-link:focus-visible .index-img {
    opacity: 1;
    scale: 1;
    visibility: visible;
    transition:
      opacity 200ms var(--ease-out),
      scale 300ms var(--ease-out),
      visibility 0s;
  }

  .index-link:focus-visible .index-img {
    transition-duration: 0s;
  }
}

/* Páginas institucionais: título num bloco sólido que entra pela imagem */

.hero-title {
  position: relative;
  width: fit-content;
  max-width: calc(100% - 2 * var(--gutter));
  margin: calc(-1 * var(--space-4)) var(--gutter) 0;
  padding: var(--space-2) var(--space-3) 0 0;
  background: var(--color-bg);
}

.contact {
  padding: var(--space-3) var(--gutter) 0;
}

.contact-mail {
  display: inline-block;
  margin-top: var(--space-1);
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 5vw, 6rem);
  line-height: 1;
  overflow-wrap: anywhere;
  text-decoration-thickness: 2px;
}

/* Movimento */

/* Estado "visto": uma animação ligada ao scroll só liga/desliga --seen;
   a entrada em si é uma transição com duração fixa (não depende da velocidade do scroll) */

@property --seen {
  syntax: "<integer>";
  inherits: true;
  initial-value: 0;
}

@keyframes seen {
  from {
    --seen: 0;
  }
  to {
    --seen: 1;
  }
}

@media (prefers-reduced-motion: no-preference) {
  /* Transições entre páginas: crossfade curto; o título de cada projeto viaja (view-transition-name por projeto) */
  @view-transition {
    navigation: auto;
  }

  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation-duration: 220ms;
    animation-timing-function: var(--ease-out);
  }

  ::view-transition-group(*) {
    animation-duration: 420ms;
    animation-timing-function: var(--ease-out);
  }

  ::view-transition-group(root) {
    animation-duration: 220ms;
  }

  @supports (animation-timeline: view()) {
    .project-media figure {
      animation: seen linear both;
      animation-timeline: view();
      animation-range: entry 12% entry 13%;
    }

    /* Imagens dos projetos: opacidade + deslocamento curto */
    .project-media img,
    .project-media figcaption {
      transition-property: opacity, translate, clip-path;
      transition-duration: 450ms;
      transition-timing-function: var(--ease-out);
    }

    @container style(--seen: 0) {
      .project-media img {
        opacity: 0;
        translate: 0 24px;
      }

      /* Legendas: entram de lado, depois da imagem */
      .project-media figcaption {
        opacity: 0;
        translate: -12px 0;
      }

      /* Prémios (placas de cor): revelação por clip-path, sem deslocamento */
      .awards img {
        opacity: 1;
        translate: none;
        clip-path: inset(0 0 100% 0);
      }

      .awards figcaption {
        opacity: 0;
        translate: none;
      }
    }

    @container style(--seen: 1) {
      .project-media img {
        opacity: 1;
        translate: 0;
        clip-path: inset(0);
      }

      .project-media figcaption {
        transition-duration: 350ms;
        transition-delay: 150ms;
      }

      .awards img {
        transition-duration: 550ms;
        transition-timing-function: var(--ease-wipe);
      }

      .awards figcaption {
        transition-duration: 300ms;
        transition-delay: 350ms;
      }
    }
  }
}

/* Movimento reduzido: tudo estático, incluindo as transições entre páginas */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
    scroll-behavior: auto !important;
  }

  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*) {
    animation: none !important;
  }
}