/* ==========================================================================
   Fishotto — folha de estilo principal
   Replica o visual minimalista do site Squarespace original: fundo branco,
   tipografia neutra, foco total nas fotografias.
   ========================================================================== */

:root {
  --color-bg: #ffffff;
  --color-text: #666666;
  --color-text-strong: #1f1f1f;
  --color-nav: #a3a3a3;
  --color-border: #e5e5e5;
  --color-surface: #fafafa;
  --color-accent: #1f1f1f;
  --color-overlay: rgba(0, 0, 0, 0.55);

  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: clamp(1.4rem, 1.1rem + 1vw, 1.9rem);
  --text-2xl: clamp(1.8rem, 1.3rem + 2vw, 3rem);

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.75rem;
  --space-lg: clamp(2.5rem, 2rem + 2vw, 4.5rem);
  --space-section: clamp(3rem, 2.2rem + 4vw, 6rem);

  --header-height-mobile: 66px;
  --max-width: 1400px;

  --duration-fast: 150ms;
  --duration-normal: 400ms;
  --duration-slow: 900ms;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);

  --z-header: 100;
  --z-overlay: 200;
}

/* ---------------------------------------------------------------------- */
/* Reset & base                                                            */
/* ---------------------------------------------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
}

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

a {
  color: var(--color-text-strong);
  text-decoration: none;
}

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

h1,
h2,
h3 {
  color: var(--color-text-strong);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.25;
  margin: 0 0 var(--space-sm);
}

h1 {
  font-size: var(--text-2xl);
}

h2 {
  font-size: var(--text-xl);
}

p {
  margin: 0 0 var(--space-sm);
}

button {
  font-family: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: var(--space-sm);
  top: -60px;
  background: var(--color-text-strong);
  color: #fff;
  padding: var(--space-xs) var(--space-sm);
  z-index: 1000;
  transition: top var(--duration-fast) ease;
}

.skip-link:focus {
  top: var(--space-sm);
}

/* ---------------------------------------------------------------------- */
/* Header / navegação                                                      */
/* ---------------------------------------------------------------------- */

/* Coluna fixa no canto superior esquerdo — logo, navegação vertical e
   redes sociais. Fica por cima do conteúdo (a Home usa uma galeria a
   toda a largura por baixo dela); nas restantes páginas o conteúdo tem
   uma margem esquerda para não ficar tapado (ver "#main" mais abaixo). */

:root {
  --nav-col-width: 240px;
  --nav-col-inset: 50px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-header);
  width: var(--nav-col-width);
  max-height: 100vh;
  overflow-y: auto;
  padding: var(--nav-col-inset) 30px var(--space-md) var(--nav-col-inset);
  background: var(--color-bg);
}

.site-header__bar {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.site-header__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.site-header__logo {
  width: 155px;
  height: auto;
  display: block;
  margin: 0 auto;
}

.site-header__tagline {
  width: 100%;
  font-size: 0.8125rem;
  color: var(--color-text);
  letter-spacing: 0.01em;
  line-height: 1.5;
  text-align: center;
}

.site-header__tagline-name {
  display: block;
  margin-bottom: 1.5em; /* espaço de uma linha em branco */
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 0;
  width: 32px;
  height: 32px;
  position: relative;
  margin-bottom: var(--space-sm);
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  height: 2px;
  background: var(--color-text-strong);
  transition: transform var(--duration-fast) var(--ease-out-expo),
    opacity var(--duration-fast) ease;
}

.nav-toggle span {
  top: 15px;
}

.nav-toggle span::before {
  top: -8px;
}

.nav-toggle span::after {
  top: 8px;
}

.nav-toggle[aria-expanded="true"] span {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] span::before {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span::after {
  transform: translateY(-8px) rotate(-45deg);
}

.primary-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.primary-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.primary-nav > ul {
  display: flex;
  flex-direction: column;
}

.primary-nav a,
.submenu-toggle {
  display: block;
  width: 100%;
  padding: 4px 0;
  font-size: 1.1rem;
  font-weight: 500;
  font-family: inherit;
  color: var(--color-text-strong);
  letter-spacing: 0;
  background: none;
  border: 0;
  text-align: center;
}

.primary-nav > ul:last-child a {
  font-size: 0.95rem;
}

/* O item/secção correspondente à página atual fica em cinza — os
   restantes ficam a preto (tal como no site original). */
.primary-nav a:hover,
.primary-nav a:focus-visible,
.primary-nav a[aria-current="page"],
.submenu-toggle:hover,
.submenu-toggle:focus-visible,
.has-submenu.is-active > .submenu-toggle {
  color: var(--color-nav);
}

/* "Portfolio" é um dropdown/acordeão: ao abrir, a lista de sub-secções
   entra no fluxo normal e o menu "estica" (cresce em altura). */
.has-submenu > .submenu {
  list-style: none;
  margin: 2px 0 4px;
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out-expo);
}

.has-submenu[data-open="true"] > .submenu {
  max-height: 260px;
}

.submenu a {
  padding: 3px 0;
  font-size: 0.95rem;
}

.site-header__socials {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.site-header__socials a {
  color: var(--color-text-strong);
}

.site-header__socials svg {
  width: 15px;
  height: 15px;
  fill: currentColor;
}

@media (max-width: 860px) {
  .site-header {
    width: 100%;
    height: auto;
    max-height: none;
    padding: var(--space-sm) var(--space-md);
    /* Fundo quase opaco (97%) torna o blur pouco percetivel — e
       backdrop-filter num ancestral do menu mobile faz o Safari/iOS
       tratar esse elemento como containing block para os descendentes
       com position:fixed, incluindo o proprio .primary-nav. Resultado:
       o painel do menu ficava preso dentro da caixa pequena do
       cabecalho (com overflow-y:auto a escondê-lo) em vez de cobrir o
       ecra — o botao hamburger continuava a animar bem por nao
       depender de position:fixed, so o painel em si desaparecia. */
    background: rgba(255, 255, 255, 0.97);
    border-bottom: 1px solid var(--color-border);
  }

  .site-header__bar {
    flex-direction: row;
    align-items: center;
    gap: var(--space-md);
  }

  .site-header__brand {
    margin-right: auto;
  }

  .site-header__tagline {
    display: none;
  }

  .nav-toggle {
    display: block;
    margin-bottom: 0;
  }

  .site-header__socials {
    display: none;
  }

  .primary-nav {
    position: fixed;
    inset: var(--header-height-mobile) 0 0 0;
    background: #fff;
    padding: var(--space-lg) var(--space-md);
    transform: translateX(100%);
    transition: transform var(--duration-normal) var(--ease-out-expo);
    overflow-y: auto;
  }

  .primary-nav[data-open="true"] {
    transform: translateX(0);
  }

  .primary-nav a {
    font-size: var(--text-lg);
  }

  .has-submenu[data-open="true"] > .submenu {
    max-height: none;
  }
}

/* ---------------------------------------------------------------------- */
/* Layout util                                                             */
/* ---------------------------------------------------------------------- */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Todas as páginas — incluindo a Home — deixam a coluna do menu livre e
   têm a mesma margem branca do menu à volta do conteúdo (topo/direita/
   baixo — tal como no site original; à esquerda a margem já vem da coluna
   do menu, por isso não se repete). Sem título visível no topo — o <h1>
   de cada página existe só para leitores de ecrã/SEO. */
#main {
  margin-left: var(--nav-col-width);
  padding: var(--nav-col-inset) var(--nav-col-inset) var(--nav-col-inset) 0;
}

@media (max-width: 860px) {
  #main {
    margin-left: 0;
    padding: var(--header-height-mobile) var(--space-md) var(--space-md);
  }
}

/* ---------------------------------------------------------------------- */
/* Home — carrossel automático                                             */
/* ---------------------------------------------------------------------- */

.hero-carousel {
  position: relative;
  width: 100%;
  height: calc(100svh - 2 * var(--nav-col-inset));
  min-height: 420px;
  overflow: hidden;
  background: #000;
}

@media (max-width: 860px) {
  .hero-carousel {
    height: calc(100svh - var(--header-height-mobile) - var(--space-md));
  }
}

.hero-carousel__track {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-carousel__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out-expo);
  will-change: opacity;
}

.hero-carousel__slide.is-active {
  opacity: 1;
  z-index: 1;
}

.hero-carousel__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-carousel__controls {
  position: absolute;
  inset-inline: 0;
  bottom: var(--space-md);
  display: flex;
  justify-content: center;
  gap: 10px;
  z-index: 2;
}

.hero-carousel__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.25);
  padding: 0;
  transition: background var(--duration-fast) ease, transform var(--duration-fast) ease;
}

.hero-carousel__dot.is-active {
  background: #fff;
  transform: scale(1.2);
}

.hero-carousel__arrow {
  position: absolute;
  top: 50%;
  translate: 0 -50%;
  z-index: 2;
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  border: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  opacity: 0;
  transition: opacity var(--duration-fast) ease, background var(--duration-fast) ease;
}

.hero-carousel:hover .hero-carousel__arrow,
.hero-carousel__arrow:focus-visible {
  opacity: 1;
}

.hero-carousel__arrow:hover {
  background: rgba(0, 0, 0, 0.6);
}

.hero-carousel__arrow--prev {
  left: var(--space-md);
}

.hero-carousel__arrow--next {
  right: var(--space-md);
}

.hero-carousel__arrow svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.hero-carousel__pause {
  position: absolute;
  right: var(--space-md);
  bottom: var(--space-md);
  z-index: 2;
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  border: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
}

.hero-carousel__pause svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

@media (prefers-reduced-motion: reduce) {
  .hero-carousel__slide {
    transition: opacity 1ms linear;
  }
}

/* ---------------------------------------------------------------------- */
/* Galerias em grelha                                                      */
/* ---------------------------------------------------------------------- */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
}

@media (max-width: 1200px) {
  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 700px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.gallery-grid__item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--color-surface);
}

.gallery-grid__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.gallery-grid__item:hover img,
.gallery-grid__item:focus-within img {
  transform: scale(1.06);
}

.gallery-grid__item button {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background: none;
  border: 0;
  padding: 0;
}

/* Índice (Projects): cartões com título sobreposto, alinhados à
   esquerda (rentes ao menu), sem esticar até à borda direita. */
.index-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  padding: 0 0 var(--space-section) 0;
}

@media (max-width: 900px) {
  .index-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.index-card {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-surface);
}

.index-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.index-card:hover img,
.index-card:focus-within img {
  transform: scale(1.06);
}

.index-card__label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: var(--space-sm);
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0.55) 100%);
  pointer-events: none;
}

.index-card__label span {
  color: #fff;
  font-size: var(--text-sm);
  letter-spacing: 0.03em;
  font-weight: 600;
}

.index-card__link {
  position: absolute;
  inset: 0;
}

/* ---------------------------------------------------------------------- */
/* Lightbox                                                                 */
/* ---------------------------------------------------------------------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: rgba(10, 10, 10, 0.95);
  display: none;
  align-items: center;
  justify-content: center;
}

.lightbox[data-open="true"] {
  display: flex;
}

.lightbox__figure {
  max-width: min(92vw, 1600px);
  max-height: 88vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.lightbox__figure img {
  max-width: 100%;
  max-height: 80vh;
  width: auto;
  object-fit: contain;
}

.lightbox__caption {
  color: #ddd;
  font-size: var(--text-sm);
}

.lightbox__close,
.lightbox__arrow {
  position: fixed;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
}

.lightbox__close {
  top: var(--space-md);
  right: var(--space-md);
  width: 42px;
  height: 42px;
}

.lightbox__arrow {
  top: 50%;
  translate: 0 -50%;
  width: 52px;
  height: 52px;
}

.lightbox__arrow--prev {
  left: var(--space-md);
}

.lightbox__arrow--next {
  right: var(--space-md);
}

.lightbox__arrow svg,
.lightbox__close svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

@media (max-width: 640px) {
  .lightbox__arrow {
    width: 40px;
    height: 40px;
  }
}

/* ---------------------------------------------------------------------- */
/* About                                                                    */
/* ---------------------------------------------------------------------- */

.about {
  display: grid;
  grid-template-columns: minmax(260px, 420px) 1fr;
  gap: var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md) var(--space-section);
  align-items: start;
}

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

.about__text p {
  max-width: 62ch;
}

.about__signature {
  font-size: var(--text-lg);
  color: var(--color-text-strong);
  margin-top: var(--space-md);
}

.about__copyright {
  font-size: var(--text-xs);
  color: var(--color-text);
  margin-top: var(--space-lg);
}

@media (max-width: 800px) {
  .about {
    grid-template-columns: 1fr;
  }
}

/* ---------------------------------------------------------------------- */
/* Contact                                                                  */
/* ---------------------------------------------------------------------- */

.contact-intro {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 var(--space-md) var(--space-md);
}

.contact-form {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 var(--space-md) var(--space-section);
  display: grid;
  gap: var(--space-sm);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

@media (max-width: 560px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-strong);
}

.field input,
.field textarea {
  font-family: inherit;
  font-size: var(--text-base);
  color: var(--color-text-strong);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  padding: 0.65rem 0.75rem;
  background: #fff;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--color-accent);
}

.field--honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-form__submit {
  justify-self: start;
  background: var(--color-text-strong);
  color: #fff;
  border: 0;
  padding: 0.8rem 2.2rem;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 3px;
  transition: background var(--duration-fast) ease;
}

.contact-form__submit:hover {
  background: #000;
}

.form-status {
  font-size: var(--text-sm);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 3px;
  display: none;
}

.form-status[data-state="success"] {
  display: block;
  background: #eaf7ec;
  color: #1e6b2e;
}

.form-status[data-state="error"] {
  display: block;
  background: #fbeaea;
  color: #a12626;
}

/* ---------------------------------------------------------------------- */
/* Cookie banner leve (apenas se necessário no futuro)                     */
/* ---------------------------------------------------------------------- */

.cookie-note {
  position: fixed;
  left: var(--space-sm);
  right: var(--space-sm);
  bottom: var(--space-sm);
  max-width: 520px;
  margin-inline: auto;
  background: var(--color-text-strong);
  color: #fff;
  padding: var(--space-sm) var(--space-md);
  border-radius: 6px;
  display: none;
  align-items: center;
  gap: var(--space-sm);
  z-index: var(--z-overlay);
  font-size: var(--text-sm);
}

.cookie-note[data-open="true"] {
  display: flex;
}

.cookie-note button {
  background: #fff;
  color: var(--color-text-strong);
  border: 0;
  border-radius: 3px;
  padding: 0.4rem 0.9rem;
  font-size: var(--text-xs);
  white-space: nowrap;
}