/* ==========================================================================
   ITP Consulting, Lda — folha de estilo unica
   Sem framework. Tokens em :root, mobile-first, breakpoints 40em / 56em / 75em.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Fontes
   Source Serif 4 (SIL OFL) em ficheiro variavel: um so woff2 cobre 600 e 700.
   Subset latin. O corpo de texto usa a stack do sistema — 0 bytes, 0 pedidos.
   -------------------------------------------------------------------------- */
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 600 700;
  font-display: swap;
  src: url("/assets/fonts/source-serif-4-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}

/* --------------------------------------------------------------------------
   2. Tokens
   Contrastes medidos. O azul de marca herdado (#11ACFF) da 2.51:1 sobre branco:
   reprova AA para texto E o minimo de 3:1 para elementos graficos. Por isso so
   e usado sobre fundo escuro (6.49:1 sobre --c-deep). Links e botoes em
   --c-brand-700 (7.26:1, passa AAA).
   -------------------------------------------------------------------------- */
:root {
  color-scheme: light;

  --c-brand-900: #062f4a; /* 13.88:1 sobre branco — titulos       */
  --c-brand-700: #0a5b8d; /*  7.26:1 sobre branco — links, botoes */
  --c-brand-600: #0d6ea8;
  --c-brand-500: #11acff; /*  6.49:1 sobre --c-deep — SO em escuro */
  --c-brand-100: #e6f4ff;

  --c-ink: #10151b; /* 18.34:1 sobre branco */
  --c-ink-muted: #47535f; /*  7.86:1 sobre branco */
  --c-surface: #ffffff;
  --c-surface-alt: #f5f8fa;
  --c-deep: #0a2233;
  --c-line: #dce5ec;
  --c-on-deep: #ffffff;
  --c-on-deep-muted: #b9cbd9;

  --c-erro: #b3261e;
  --c-erro-bg: #fdf0ef;
  --c-ok: #146c43;
  --c-ok-bg: #eefaf3;

  --overlay-hero: linear-gradient(
    170deg,
    rgba(6, 34, 51, 0.9) 0%,
    rgba(6, 34, 51, 0.74) 55%,
    rgba(10, 91, 141, 0.72) 100%
  );
  --overlay-band: linear-gradient(
    180deg,
    rgba(6, 34, 51, 0.88) 0%,
    rgba(6, 34, 51, 0.82) 100%
  );

  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", sans-serif;
  --font-head: "Source Serif 4", Georgia, "Times New Roman", serif;

  /* Escala fluida: nenhuma media query mexe em tamanho de texto. */
  --fs-900: clamp(2.25rem, 1.55rem + 3.4vw, 3.75rem);
  --fs-800: clamp(1.75rem, 1.35rem + 2vw, 2.5rem);
  --fs-700: clamp(1.25rem, 1.1rem + 0.7vw, 1.5rem);
  --fs-600: clamp(1.0625rem, 1rem + 0.4vw, 1.25rem);
  --fs-400: 1rem;
  --fs-300: 0.875rem;

  --lh-tight: 1.15;
  --lh-head: 1.25;
  --lh-body: 1.65;

  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.5rem;
  --sp-6: 2rem;
  --sp-7: 3rem;
  --sp-8: 4rem;
  --sp-section: clamp(3.5rem, 2rem + 6vw, 7rem);

  --container: 72rem;
  --container-prose: 44rem;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --header-h: 4.25rem;

  --radius: 10px;
  --radius-lg: 18px;
  --shadow-1: 0 1px 2px rgba(6, 47, 74, 0.06), 0 2px 8px rgba(6, 47, 74, 0.06);
  --shadow-2: 0 2px 4px rgba(6, 47, 74, 0.08), 0 12px 32px rgba(6, 47, 74, 0.1);
}

/* --------------------------------------------------------------------------
   3. Reset e base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-400);
  line-height: var(--lh-body);
  color: var(--c-ink);
  background: var(--c-surface);
  overflow-x: hidden;
}

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: var(--lh-head);
  letter-spacing: -0.015em;
  color: var(--c-brand-900);
  margin: 0 0 var(--sp-4);
  text-wrap: balance;
}

h1 {
  font-size: var(--fs-900);
  line-height: var(--lh-tight);
}
h2 {
  font-size: var(--fs-800);
}
h3 {
  font-size: var(--fs-700);
  font-weight: 600;
}
h4 {
  font-size: var(--fs-600);
  font-weight: 600;
}

p {
  margin: 0 0 var(--sp-4);
  text-wrap: pretty;
}
p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--c-brand-700);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}
a:hover {
  color: var(--c-brand-900);
}

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

/* Foco sempre visivel. Nunca `outline: none` sem substituto. */
:focus-visible {
  outline: 3px solid var(--c-brand-700);
  outline-offset: 3px;
  border-radius: 3px;
}
.band--dark :focus-visible,
.site-footer :focus-visible {
  outline-color: var(--c-brand-500);
}

/* --------------------------------------------------------------------------
   4. Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.prose {
  max-width: var(--container-prose);
}

.band {
  position: relative;
  padding-block: var(--sp-section);
  /* Sem isto as ancoras aterram por baixo do header sticky. */
  scroll-margin-top: var(--header-h);
}

.band--alt {
  background: var(--c-surface-alt);
}

.band--dark {
  background: var(--c-deep);
  color: var(--c-on-deep);
}
.band--dark h2,
.band--dark h3 {
  color: var(--c-on-deep);
}

/* Fundo fotografico: <picture> absoluto por tras do conteudo. Preferido a
   background-image porque permite WebP com fallback, lazy e width/height. */
.band--photo {
  isolation: isolate;
  color: var(--c-on-deep);
}
.band--photo h1,
.band--photo h2,
.band--photo h3 {
  color: var(--c-on-deep);
}

.band__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  display: block;
  overflow: hidden;
}
.band__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
}
.band__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-band);
}

.band__header {
  max-width: var(--container-prose);
  margin-bottom: var(--sp-7);
}
.band__header p {
  font-size: var(--fs-600);
  color: var(--c-ink-muted);
}
.band--dark .band__header p,
.band--photo .band__header p {
  color: var(--c-on-deep-muted);
}

/* Etiqueta curta acima do h2. Da hierarquia sem inventar um nivel de titulo. */
.eyebrow {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin: 0 0 var(--sp-3);
  font-family: var(--font-body);
  font-size: var(--fs-300);
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--c-brand-700);
}
.eyebrow::before {
  content: "";
  width: 1.75rem;
  height: 2px;
  background: currentColor;
  flex: none;
}
.band--dark .eyebrow,
.band--photo .eyebrow {
  color: var(--c-brand-500);
}

/* --------------------------------------------------------------------------
   5. Skip link
   translateY em vez de display:none — tem de continuar na ordem de tabulacao.
   -------------------------------------------------------------------------- */
.skip-link {
  position: fixed;
  top: var(--sp-2);
  left: var(--sp-2);
  z-index: 100;
  padding: var(--sp-3) var(--sp-4);
  background: var(--c-brand-900);
  color: var(--c-on-deep);
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  transform: translateY(-200%);
  transition: transform 0.15s ease;
}
.skip-link:focus {
  transform: translateY(0);
  color: var(--c-on-deep);
}

/* --------------------------------------------------------------------------
   6. Botoes
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  min-height: 2.875rem; /* alvo de toque >= 44px */
  padding: var(--sp-3) var(--sp-5);
  border: 2px solid transparent;
  border-radius: var(--radius);
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease,
    border-color 0.15s ease, transform 0.15s ease;
}
.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--c-brand-700);
  border-color: var(--c-brand-700);
  color: #fff;
}
.btn--primary:hover {
  background: var(--c-brand-900);
  border-color: var(--c-brand-900);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  border-color: currentColor;
  color: var(--c-brand-700);
}
.btn--ghost:hover {
  background: var(--c-brand-700);
  border-color: var(--c-brand-700);
  color: #fff;
}

.band--photo .btn--ghost,
.band--dark .btn--ghost {
  color: #fff;
}
.band--photo .btn--ghost:hover,
.band--dark .btn--ghost:hover {
  background: #fff;
  border-color: #fff;
  color: var(--c-brand-900);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  margin-top: var(--sp-6);
}

/* --------------------------------------------------------------------------
   7. Cabecalho e navegacao
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--c-line);
  box-shadow: var(--shadow-1);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  min-height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-right: auto;
  text-decoration: none;
  color: inherit;
}
.brand img {
  width: auto;
  height: 2.5rem;
  flex: none;
}
.brand__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.1;
  color: var(--c-brand-900);
}
.brand__tagline {
  display: none;
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-ink-muted);
}

/* Escondido por omissao. So aparece abaixo de 56em E so quando ha JS (o site.js
   marca o <html> com data-nav-ready) — ver a media query mais abaixo. */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  background: none;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  color: var(--c-brand-900);
  cursor: pointer;
}
.nav-toggle svg {
  width: 1.375rem;
  height: 1.375rem;
}
.nav-toggle .icon-fechar {
  display: none;
}
.nav-toggle[aria-expanded="true"] .icon-abrir {
  display: none;
}
.nav-toggle[aria-expanded="true"] .icon-fechar {
  display: block;
}

.nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-1);
}
/* O :not(.btn) e obrigatorio. "\.nav__list a" tem especificidade 0,1,1 e
   ".btn--primary" so 0,1,0, portanto sem ele estas regras venciam e pintavam o
   botao "Falar connosco" com texto escuro e padding de link — parecia premido. */
.nav__list a:not(.btn) {
  position: relative;
  display: block;
  padding: var(--sp-3);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--c-ink);
  text-decoration: none;
  border-radius: var(--radius);
}
.nav__list a:not(.btn):hover {
  color: var(--c-brand-700);
  background: var(--c-brand-100);
}
/* Barra em pseudo-elemento e nao um box-shadow inset: o inset segue o
   border-radius do link e desenhava um traco curvo com ar de caixa. */
.nav__list a:not(.btn)[aria-current="true"] {
  color: var(--c-brand-700);
  font-weight: 600;
}
.nav__list a:not(.btn)[aria-current="true"]::after {
  content: "";
  position: absolute;
  left: var(--sp-3);
  right: var(--sp-3);
  bottom: 0.4rem;
  height: 2px;
  border-radius: 2px;
  background: var(--c-brand-700);
}
.nav__cta {
  margin-left: var(--sp-2);
}

/* Sem JS o menu fica visivel e utilizavel; o site.js poe data-nav-ready no <html>
   e so entao o layout colapsado entra em cena. */
@media (max-width: 55.999em) {
  [data-nav-ready] .nav-toggle {
    display: inline-flex;
  }
  [data-nav-ready] .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    visibility: hidden; /* nao basta opacity: os links continuariam tabulaveis */
    opacity: 0;
    transform: translateY(-0.5rem);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
    background: var(--c-surface);
    border-bottom: 1px solid var(--c-line);
    box-shadow: var(--shadow-2);
    padding: var(--sp-3) var(--gutter) var(--sp-5);
  }
  [data-nav-ready] .site-nav.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }
  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav__list a:not(.btn) {
    padding: var(--sp-4) var(--sp-2);
    border-bottom: 1px solid var(--c-line);
    font-size: 1.0625rem;
  }
  .nav__list a:not(.btn)[aria-current="true"] {
    box-shadow: inset 3px 0 0 var(--c-brand-700);
  }
  .nav__list a:not(.btn)[aria-current="true"]::after {
    display: none;
  }
  .nav__cta {
    margin: var(--sp-4) var(--sp-2) 0;
  }
}

@media (min-width: 56em) {
  .brand__tagline {
    display: block;
  }
  .brand img {
    height: 2.75rem;
  }
  /* Sem quebra de linha: o botao "Falar connosco" nao pode cair para uma
     segunda linha e duplicar a altura do cabecalho. */
  .nav__list {
    flex-wrap: nowrap;
  }
  .nav__list a:not(.btn) {
    padding: var(--sp-2) var(--sp-3);
    white-space: nowrap;
  }
}

/* --------------------------------------------------------------------------
   8. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: center;
  min-height: clamp(30rem, 82vh, 46rem);
  padding-block: var(--sp-8);
  color: var(--c-on-deep);
  scroll-margin-top: var(--header-h);
}
.hero .band__bg::after {
  background: var(--overlay-hero);
}
.hero__inner {
  max-width: 46rem;
}
.hero h1 {
  color: #fff;
  margin-bottom: var(--sp-3);
}
.hero__tagline {
  font-family: var(--font-head);
  font-size: var(--fs-700);
  font-style: italic;
  font-weight: 600;
  color: var(--c-brand-500);
  margin-bottom: var(--sp-5);
}
.hero__lead {
  font-size: var(--fs-600);
  color: #e4eef5;
  max-width: 38rem;
}

/* --------------------------------------------------------------------------
   9. Sobre — texto + fotografia
   -------------------------------------------------------------------------- */
.sobre__grid {
  display: grid;
  gap: var(--sp-7);
}
.sobre__texto p {
  font-size: var(--fs-600);
  color: var(--c-ink-muted);
}
.sobre__texto p:first-of-type {
  color: var(--c-ink);
}
/* O enquadramento vive no contentor, nao na imagem: assim a moldura tem sempre
   a proporcao que queremos, independentemente do que a grelha faca a altura da
   linha — que era o que estava a esticar a fotografia. */
.sobre__foto {
  aspect-ratio: 16 / 10; /* em coluna unica, uma faixa larga */
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
}
.sobre__foto picture,
.sobre__foto img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 56em) {
  .sobre__grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    gap: var(--sp-8);
  }
  /* Ao lado de uma coluna de texto alta, um retrato equilibra melhor do que uma
     faixa baixa. align-self trava qualquer esticamento da linha da grelha. */
  .sobre__foto {
    aspect-ratio: 4 / 5;
    align-self: center;
    max-height: 34rem;
  }
}

/* --------------------------------------------------------------------------
   10. Areas de actuacao
   auto-fit resolve 1 -> 2 -> 4 colunas sem uma unica media query.
   -------------------------------------------------------------------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr));
  gap: var(--sp-5);
}

.card {
  display: flex;
  flex-direction: column;
  padding: var(--sp-6) var(--sp-5);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
  transition: box-shadow 0.2s ease, transform 0.2s ease,
    border-color 0.2s ease;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-2);
  border-color: var(--c-brand-700);
}
.card__icon {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: var(--sp-4);
  border-radius: var(--radius);
  background: var(--c-brand-100);
  color: var(--c-brand-700);
}
.card__icon svg {
  width: 1.5rem;
  height: 1.5rem;
}
.card h3 {
  margin-bottom: var(--sp-3);
}
.card p {
  color: var(--c-ink-muted);
  font-size: 0.9375rem;
}

/* --------------------------------------------------------------------------
   11. Como trabalhamos
   -------------------------------------------------------------------------- */
.passos {
  display: grid;
  gap: var(--sp-6);
  counter-reset: passo;
}
.passo {
  position: relative;
  padding-top: var(--sp-5);
  border-top: 3px solid var(--c-line);
  counter-increment: passo;
}
.passo::before {
  content: counter(passo, decimal-leading-zero);
  display: block;
  margin-bottom: var(--sp-3);
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-brand-700);
}
.passo h3 {
  margin-bottom: var(--sp-2);
}
.passo p {
  color: var(--c-ink-muted);
}

@media (min-width: 56em) {
  .passos {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-7);
  }
}

/* --------------------------------------------------------------------------
   12. Numeros
   -------------------------------------------------------------------------- */
.numeros {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: var(--sp-6);
  text-align: center;
}
.numero__valor {
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 1.8rem + 3vw, 3.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--c-brand-500);
}
.numero__legenda {
  margin-top: var(--sp-2);
  font-size: var(--fs-300);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--c-on-deep-muted);
}

/* --------------------------------------------------------------------------
   13. Projectos e parceiros
   -------------------------------------------------------------------------- */
.projectos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: var(--sp-5);
}
.projecto {
  padding: var(--sp-6) var(--sp-5);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-left: 4px solid var(--c-brand-700);
  border-radius: var(--radius);
}
.projecto__cliente {
  font-size: var(--fs-300);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-brand-700);
  margin-bottom: var(--sp-2);
}
.projecto p {
  color: var(--c-ink-muted);
  font-size: 0.9375rem;
}

.parceiros {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--sp-5) var(--sp-7);
}
.parceiro img {
  height: 3rem;
  width: auto;
  object-fit: contain;
  filter: grayscale(1);
  opacity: 0.75;
  transition: filter 0.2s ease, opacity 0.2s ease;
}
.parceiro:hover img {
  filter: none;
  opacity: 1;
}
.parceiro__nome {
  font-family: var(--font-head);
  font-size: var(--fs-700);
  font-weight: 600;
  color: var(--c-ink-muted);
}

/* --------------------------------------------------------------------------
   14. Banda de chamada a accao
   -------------------------------------------------------------------------- */
.cta {
  text-align: center;
}
.cta__inner {
  max-width: 42rem;
  margin-inline: auto;
}
.cta p {
  font-size: var(--fs-600);
  color: #e4eef5;
}
.cta .btn-row {
  justify-content: center;
}

/* --------------------------------------------------------------------------
   15. Contactos
   -------------------------------------------------------------------------- */
.contactos__grid {
  display: grid;
  gap: var(--sp-7);
}

@media (min-width: 62em) {
  .contactos__grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: var(--sp-8);
    align-items: start;
  }
}

.escritorios {
  display: grid;
  gap: var(--sp-5);
}
.escritorio {
  padding: var(--sp-5);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
}
.escritorio h3 {
  font-size: var(--fs-600);
  margin-bottom: var(--sp-3);
}
.escritorio address {
  font-style: normal;
  color: var(--c-ink-muted);
  line-height: 1.55;
}

.contacto-directo {
  display: grid;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}
.contacto-directo a {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  min-height: 2.75rem;
  font-weight: 600;
  text-decoration: none;
}
.contacto-directo svg {
  width: 1.25rem;
  height: 1.25rem;
  flex: none;
  color: var(--c-brand-700);
}
.contacto-directo a:hover {
  text-decoration: underline;
}

.mapa {
  margin-top: var(--sp-5);
}
.mapa iframe {
  display: block;
  width: 100%;
  height: 20rem;
  border: 0;
  border-radius: var(--radius);
  background: var(--c-surface-alt);
}
.mapa__link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-3);
  font-size: var(--fs-300);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   16. Formulario
   -------------------------------------------------------------------------- */
.form {
  padding: var(--sp-6);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
}
.form__grid {
  display: grid;
  gap: var(--sp-4);
}
@media (min-width: 40em) {
  .form__grid--2 {
    grid-template-columns: 1fr 1fr;
  }
}

.campo {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.campo label {
  font-size: var(--fs-300);
  font-weight: 600;
  color: var(--c-ink);
}
.campo label .opcional {
  font-weight: 400;
  color: var(--c-ink-muted);
}

.campo input,
.campo textarea {
  width: 100%;
  min-height: 2.875rem;
  padding: var(--sp-3);
  font: inherit;
  font-size: 1rem; /* < 16px faz o iOS dar zoom ao focar */
  color: var(--c-ink);
  background: var(--c-surface);
  border: 1px solid #b9c6d1;
  border-radius: var(--radius);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.campo textarea {
  min-height: 9rem;
  resize: vertical;
}
.campo input:hover,
.campo textarea:hover {
  border-color: var(--c-brand-700);
}
.campo input:focus,
.campo textarea:focus {
  border-color: var(--c-brand-700);
  box-shadow: 0 0 0 3px rgba(10, 91, 141, 0.16);
}
.campo input[aria-invalid="true"],
.campo textarea[aria-invalid="true"] {
  border-color: var(--c-erro);
}

.erro-campo {
  font-size: var(--fs-300);
  font-weight: 600;
  color: var(--c-erro);
}
.erro-campo:empty {
  display: none;
}

.alerta {
  display: flex;
  gap: var(--sp-3);
  padding: var(--sp-4);
  margin-bottom: var(--sp-5);
  border-radius: var(--radius);
  border-left: 4px solid;
  font-size: 0.9375rem;
}
.alerta svg {
  width: 1.25rem;
  height: 1.25rem;
  flex: none;
  margin-top: 0.1rem;
}
.alerta--ok {
  background: var(--c-ok-bg);
  border-color: var(--c-ok);
  color: #0d4b2f;
}
.alerta--erro {
  background: var(--c-erro-bg);
  border-color: var(--c-erro);
  color: #7a1a15;
}
.alerta ul {
  margin: var(--sp-2) 0 0;
  padding-left: var(--sp-5);
  list-style: disc;
}

/* Honeypot: fora do ecra mas ainda submetido pelo browser.
   Nao usar display:none — alguns bots ignoram campos escondidos assim. */
.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form__nota {
  margin-top: var(--sp-4);
  font-size: var(--fs-300);
  color: var(--c-ink-muted);
}

/* --------------------------------------------------------------------------
   17. Pagina de erro
   -------------------------------------------------------------------------- */
.pagina-erro {
  display: grid;
  place-items: center;
  min-height: 60vh;
  text-align: center;
}
.pagina-erro .container {
  max-width: var(--container-prose);
}
.pagina-erro .eyebrow {
  justify-content: center;
}
.pagina-erro h1 {
  font-size: var(--fs-800);
}
.pagina-erro__texto {
  font-size: var(--fs-600);
  color: var(--c-ink-muted);
}
.pagina-erro .btn-row {
  justify-content: center;
}

/* --------------------------------------------------------------------------
   18. Rodape
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--c-deep);
  color: var(--c-on-deep-muted);
  padding-block: var(--sp-8) var(--sp-6);
  font-size: 0.9375rem;
}
.site-footer a {
  color: var(--c-on-deep);
  text-decoration: none;
}
.site-footer a:hover {
  color: var(--c-brand-500);
  text-decoration: underline;
}

.site-footer__grid {
  display: grid;
  gap: var(--sp-6);
  padding-bottom: var(--sp-6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
@media (min-width: 40em) {
  .site-footer__grid {
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: var(--sp-7);
  }
}

.site-footer h2 {
  font-family: var(--font-body);
  font-size: var(--fs-300);
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: var(--sp-4);
}
.site-footer li + li {
  margin-top: var(--sp-2);
}

/* O logotipo e escuro e o PNG nao tem fundo transparente: invertê-lo daria um
   rectangulo branco solido. Vai numa placa branca, que e como uma marca escura
   se apresenta sobre fundo escuro. */
.site-footer__brand img {
  height: 3.5rem;
  width: auto;
  padding: 0.4rem 0.6rem;
  margin-bottom: var(--sp-4);
  background: #fff;
  border-radius: var(--radius);
}
.site-footer__brand p {
  max-width: 22rem;
}

.site-footer__base {
  padding-top: var(--sp-5);
  font-size: var(--fs-300);
  text-align: center;
}

/* --------------------------------------------------------------------------
   19. Movimento reduzido
   -------------------------------------------------------------------------- */
@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;
  }
  .btn:hover,
  .card:hover {
    transform: none;
  }
}