/* ================================================================
   AIROPES — stylesheet.css
   Estrutura:
     1. Custom Properties (tokens de design)
     2. Reset & Base
     3. Tipografia
     4. Header & Nav
     5. Botões
     6. Hero
     7. Value Strip
     8. Secções genéricas (.section)
     9. Componentes: Intro, Produtos, Modelo, Parceiros, Contactos
    10. Footer
    11. Responsive (≤1080px, ≤620px)
================================================================ */


/* ----------------------------------------------------------------
   1. CUSTOM PROPERTIES
   Tokens centrais de cor, sombra e espaçamento.
   Alterar aqui propaga para todo o site.
---------------------------------------------------------------- */
:root {
  /* Cores */
  --black:       #0c0d0f;
  --dark:        #15171a;   /* fundo de secções escuras */
  --grey:        #5e6369;
  --light:       #f4f6f3;   /* fundo padrão do site */
  --white:       #ffffff;
  --accent:      #b7d500;   /* verde lima — cor primária de acção */
  --accent-dark: #91aa00;   /* hover e eyebrows */

  /* Utilitários */
  --border:      rgba(255, 255, 255, 0.18);  /* bordas em fundo escuro */
  --shadow:      0 24px 80px rgba(0, 0, 0, 0.22);

  /* Espaçamento horizontal de página */
  --page-x: 56px;
}


/* ----------------------------------------------------------------
   2. RESET & BASE
---------------------------------------------------------------- */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--black);
  background: var(--light);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}


/* ----------------------------------------------------------------
   3. TIPOGRAFIA
   Regras globais de heading e texto de secção.
---------------------------------------------------------------- */

/* Remove margin-top padrão dos browsers em todos os headings e p */
h1, h2, h3, p {
  margin-top: 0;
}

h1 {
  margin-bottom: 24px;
  font-size: clamp(54px, 8vw, 116px);
  line-height: 0.91;       /* comprime para headings display grandes */
  letter-spacing: -5px;    /* tracking negativo agressivo — estilo editorial */
  text-transform: uppercase;
}

h1 span {
  /* Segunda linha do h1 — cor de destaque */
  display: block;
  color: var(--accent-dark);
}

h2 {
  font-size: clamp(34px, 4vw, 64px);
  line-height: 1.02;
  letter-spacing: -2px;
}

.eyebrow {
  /* Etiqueta de secção acima do título */
  margin: 0 0 18px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 2px;
}


/* ----------------------------------------------------------------
   4. HEADER & NAV
---------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 28px var(--page-x);
  background: linear-gradient(180deg, rgba(255,255,255,0.94), rgba(255,255,255,0.72));
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

/* --- Logo --- */
.logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start; /* impede o flex stretch de distorcer a imagem */
}

.logo-img {
  display: block;
  height: 44px;   /* altura de display — independente do tamanho do ficheiro */
  width: auto;    /* largura calculada automaticamente pela proporção */
}

.logo small {
  margin-top: 6px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--black);
}

/* --- Nav --- */
.main-nav {
  display: flex;
  gap: 30px;
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.main-nav a:hover {
  color: var(--accent-dark);
}


/* ----------------------------------------------------------------
   5. BOTÕES
   .btn          — base (dimensão, fonte, transição)
   .btn-primary  — fundo accent (amarelo-lima)
   .btn-secondary — fundo branco translúcido com borda
   .header-cta   — modificador: esconde o botão do header em mobile
---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 0;
  font-size: 14px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent);
  color: var(--black);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(0, 0, 0, 0.35);
  color: var(--black);
}


/* ----------------------------------------------------------------
   6. HERO
   Secção de entrada com imagem de fundo e overlay em gradiente.
---------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: 160px var(--page-x) 110px;  /* top alto para compensar o header fixo */
  background-image: url('assets/images/airopes-hero.png');
  background-size: cover;
  background-position: center right;
  overflow: hidden;
}

.hero-overlay {
  /* Dois gradientes sobrepostos:
     1. Horizontal — clareia o lado esquerdo para legibilidade do texto
     2. Vertical   — escurece o fundo da imagem */
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg,
      rgba(244,246,243,0.98)  0%,
      rgba(244,246,243,0.88) 32%,
      rgba(244,246,243,0.18) 66%,
      rgba(0,0,0,0.18)      100%),
    linear-gradient(0deg,
      rgba(0,0,0,0.38)  0%,
      transparent      36%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-text {
  max-width: 580px;
  font-size: 22px;
  color: #25282c;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}


/* ----------------------------------------------------------------
   7. VALUE STRIP
   Banda preta com 4 pilares em grid horizontal.
---------------------------------------------------------------- */
.value-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--black);
  color: var(--white);
  padding: 0 var(--page-x);
}

.value-strip div {
  padding: 34px 30px;
  border-left: 1px solid var(--border);
}

.value-strip strong {
  display: block;
  margin-bottom: 6px;
  font-size: 17px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.value-strip span {
  color: rgba(255, 255, 255, 0.68);
}


/* ----------------------------------------------------------------
   8. SECÇÕES GENÉRICAS
   .section       — padding padrão de página
   .section-heading — controla a largura máxima dos títulos
   .dark-section  — fundo escuro (usada em #produtos)
---------------------------------------------------------------- */
.section {
  padding: 100px var(--page-x);
}

.section-heading {
  max-width: 760px;
}

.section-heading.center {
  margin: 0 auto 56px;
  text-align: center;
}

.dark-section {
  background: var(--dark);
  color: var(--white);
}


/* ----------------------------------------------------------------
   9. COMPONENTES DE SECÇÃO

   9a. Intro / Posicionamento (#solucoes)
   9b. Produtos (#produtos)
   9c. Modelo (#modelo)
   9d. Parceiros (#parceiros)
   9e. Contactos (#contactos)
---------------------------------------------------------------- */

/* 9a — Intro */
.intro-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;  /* heading ligeiramente mais estreito */
  gap: 80px;
  background: var(--white);
}

.intro-text {
  font-size: 20px;
  color: #33383d;
}

/* 9b — Produtos */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.product-card {
  min-height: 230px;
  padding: 34px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
}

.product-card h3 {
  margin-bottom: 16px;
  font-size: 28px;
  letter-spacing: -0.8px;
}

.product-card p {
  color: rgba(255, 255, 255, 0.74);
}

/* 9c — Modelo */
.split-section {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;  /* texto mais estreito, boxes mais largas */
  gap: 80px;
  align-items: start;
  background: var(--light);
}

.split-section > div:first-child p:not(.eyebrow) {
  font-size: 20px;
  color: #33383d;
}

.model-boxes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.model-box {
  padding: 36px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.model-box h3 {
  font-size: 30px;
}

.model-box ul {
  margin: 0;
  padding-left: 20px;
}

.model-box li {
  margin-bottom: 12px;
}

.accent-box {
  /* Box do Parceiro — fundo amarelo-lima */
  background: var(--accent);
}

/* 9d — Parceiros */
.partner-section {
  background:
    linear-gradient(90deg, rgba(12,13,15,0.88), rgba(12,13,15,0.45)),
    url('assets/images/airopes-hero.png');
  background-size: cover;
  background-position: center;
  color: var(--white);
}

.partner-panel {
  max-width: 760px;
  padding: 54px;
  background: rgba(12, 13, 15, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(10px);
}

.partner-panel p:not(.eyebrow) {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.78);
}

/* 9e — Contactos */
.contact-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  background: var(--white);
}

.contact-card {
  min-width: 340px;
  padding: 32px;
  background: var(--light);
  border-left: 6px solid var(--accent);
}

.contact-card p:last-child {
  margin-bottom: 0;
}


/* ----------------------------------------------------------------
   10. FOOTER
---------------------------------------------------------------- */
.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px var(--page-x);
  background: var(--black);
  color: rgba(255, 255, 255, 0.74);
}

.site-footer p {
  margin: 0;
}


/* ----------------------------------------------------------------
   11. COMPONENTES HERO
   Hero fullscreen com imagem de fundo e headline split.
   Usa a base .hero do homepage + modificadores.
---------------------------------------------------------------- */



/* Serviços hero */
.servicos-hero {
  background-image: url('assets/images/servicos-hero.png');
  background-position: center;
  align-items: flex-end;
  padding-bottom: 80px;
}

.servicos-overlay {
  background:
    linear-gradient(90deg,
      rgba(12,13,15,0.90)  0%,
      rgba(12,13,15,0.55) 55%,
      rgba(12,13,15,0.18) 100%),
    linear-gradient(0deg,
      rgba(12,13,15,0.70)  0%,
      transparent         50%);
}

.servicos-content {
  max-width: 820px;
  width: 100%;
}

.servicos-hero h1 { color: var(--white); }
.servicos-hero h1 span { color: var(--accent); }
.servicos-hero .hero-text { color: var(--white); }
.servicos-hero .breadcrumb--dark { color: rgba(255,255,255,0.45); }
.servicos-hero .breadcrumb--dark a { color: var(--accent); }
.servicos-hero .eyebrow { color: var(--accent); }

@media (max-width: 620px) {
  .servicos-overlay {
    background: linear-gradient(180deg,
      rgba(12,13,15,0.75) 0%,
      rgba(12,13,15,0.90) 100%);
  }
}


/* AirHub hero */
.airhub-hero {
  background-image: url('assets/images/airhub-hero.png');
  background-position: center;
  align-items: flex-end;
  padding-bottom: 80px;
}

.airhub-overlay {
  background:
    linear-gradient(90deg,
      rgba(12,13,15,0.90)  0%,
      rgba(12,13,15,0.55) 55%,
      rgba(12,13,15,0.18) 100%),
    linear-gradient(0deg,
      rgba(12,13,15,0.70)  0%,
      transparent         50%);
}

.airhub-content {
  max-width: 820px;
  width: 100%;
}

.airhub-hero h1 { color: var(--white); }
.airhub-hero h1 span { color: var(--accent); }
.airhub-hero .hero-text { color: var(--white); }
.airhub-hero .breadcrumb--dark { color: rgba(255,255,255,0.45); }
.airhub-hero .breadcrumb--dark a { color: var(--accent); }
.airhub-hero .eyebrow { color: var(--accent); }

@media (max-width: 620px) {
  .airhub-overlay {
    background: linear-gradient(180deg,
      rgba(12,13,15,0.75) 0%,
      rgba(12,13,15,0.90) 100%);
  }
}


/* FlexPark hero */
.flexpark-hero {
  background-image: url('assets/images/flexpark-hero.png');
  background-position: center;
  align-items: flex-end;
  padding-bottom: 80px;
}

.flexpark-overlay {
  background:
    linear-gradient(90deg,
      rgba(12,13,15,0.90)  0%,
      rgba(12,13,15,0.55) 55%,
      rgba(12,13,15,0.18) 100%),
    linear-gradient(0deg,
      rgba(12,13,15,0.70)  0%,
      transparent         50%);
}

.flexpark-content {
  max-width: 820px;
  width: 100%;
}

.flexpark-hero h1 { color: var(--white); }
.flexpark-hero h1 span { color: var(--accent); }
.flexpark-hero .hero-text { color: var(--white); }
.flexpark-hero .breadcrumb--dark { color: rgba(255,255,255,0.45); }
.flexpark-hero .breadcrumb--dark a { color: var(--accent); }
.flexpark-hero .eyebrow { color: var(--accent); }

@media (max-width: 620px) {
  .flexpark-overlay {
    background: linear-gradient(180deg,
      rgba(12,13,15,0.75) 0%,
      rgba(12,13,15,0.90) 100%);
  }
}


/* LowRopes hero */
.lowropes-hero {
  background-image: url('assets/images/lowropes-hero.png');
  background-position: center right;
  align-items: flex-end;
  padding-bottom: 80px;
}

.lowropes-overlay {
  background:
    linear-gradient(90deg,
      rgba(12,13,15,0.90)  0%,
      rgba(12,13,15,0.55) 55%,
      rgba(12,13,15,0.18) 100%),
    linear-gradient(0deg,
      rgba(12,13,15,0.70)  0%,
      transparent         50%);
}

.lowropes-content {
  max-width: 820px;
  width: 100%;
}

.lowropes-hero h1 {
  color: var(--white);
}

.lowropes-hero h1 span {
  color: var(--accent);
}

.lowropes-hero .hero-text {
  color: var(--white);
  max-width: 460px;
}

.lowropes-hero .breadcrumb--dark {
  color: rgba(255,255,255,0.45);
}

.lowropes-hero .breadcrumb--dark a {
  color: var(--accent);
}

/* Divisor verde entre subtítulo e value props */
.hero-values-divider {
  width: 32px;
  height: 2px;
  background: var(--accent);
  margin: 20px 0;
}

/* 4 value props — gap mais apertado */
.hero-values--4 {
  gap: 32px;
}

@media (max-width: 620px) {
  .lowropes-overlay {
    background: linear-gradient(180deg,
      rgba(12,13,15,0.75) 0%,
      rgba(12,13,15,0.90) 100%);
  }
  .hero-values--4 {
    flex-direction: column;
    gap: 20px;
  }
}


.componentes-hero {
  background-image: url('assets/images/componentes-hero.png');
  background-position: center right;
  align-items: flex-end; /* ancora o conteúdo ao fundo como no mockup */
  padding-bottom: 80px;
}

/* Overlay mais escuro à esquerda para legibilidade sobre foto escura */
.componentes-overlay {
  background:
    linear-gradient(90deg,
      rgba(12,13,15,0.88)  0%,
      rgba(12,13,15,0.60) 50%,
      rgba(12,13,15,0.20) 100%),
    linear-gradient(0deg,
      rgba(12,13,15,0.72)  0%,
      transparent         50%);
}

.componentes-content {
  max-width: 820px;
  width: 100%;
}

.componentes-hero .hero-text {
  color: var(--white);
}

/* Linha 1 branca, linha 2 accent verde lima */
.componentes-hero h1 {
  color: var(--white);
}

.componentes-hero h1 span {
  color: var(--accent);
}

/* 3 value props no fundo do hero */
.hero-values {
  display: flex;
  gap: 48px;
  margin-top: 48px;
}

.hero-value {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  line-height: 1.4;
}

.hero-value svg {
  flex-shrink: 0;
}


/* ----------------------------------------------------------------
   12. PÁGINAS INTERNAS
   Estilos partilhados por todas as páginas de produto/serviço.
---------------------------------------------------------------- */

/* Hero compacto — substitui o .hero nas páginas internas */
.page-hero {
  padding: 160px var(--page-x) 80px; /* top alto compensa o header fixo */
  background: var(--dark);
  color: var(--white);
}

.page-hero h1 {
  margin-bottom: 20px;
}

.page-hero .hero-text {
  max-width: 640px;
  color: rgba(255, 255, 255, 0.82);
}

.page-hero .hero-actions {
  margin-top: 28px;
}

/* Breadcrumb de navegação */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(255, 255, 255, 0.45);
}

.breadcrumb a {
  color: var(--accent);
}

.breadcrumb a:hover {
  color: var(--accent-dark);
}

/* Grelha de vantagens/características */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.feature-item {
  padding: 28px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.feature-item h3 {
  font-size: 18px;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.feature-item p {
  font-size: 16px;
  color: #4a4f55;
  margin: 0;
}

/* Grelha de aplicações */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.application-item {
  padding: 24px 28px;
  background: var(--white);
  border-left: 5px solid var(--accent);
}

.application-item h3 {
  font-size: 17px;
  margin-bottom: 6px;
  letter-spacing: -0.2px;
}

.application-item p {
  font-size: 15px;
  color: #4a4f55;
  margin: 0;
}

/* CTA de produto — fundo escuro com painel */
.product-cta-section {
  background:
    linear-gradient(90deg, rgba(12,13,15,0.92), rgba(12,13,15,0.55)),
    url('assets/images/airopes-hero.png');
  background-size: cover;
  background-position: center;
  color: var(--white);
}

.product-cta-panel {
  max-width: 680px;
  padding: 54px;
  background: rgba(12, 13, 15, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(10px);
}

.product-cta-panel p:not(.eyebrow) {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.78);
}

/* Cards de produto no index — hover e link */
.product-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.38);
}

.product-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 20px;
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
}

.product-card-link:hover {
  color: var(--accent-dark);
  gap: 10px;
}


/* ================================================================
   12. RESPONSIVE

   Breakpoint 1: ≤1080px — tablet/portátil pequeno
     - Padding lateral reduzido
     - Nav escondida (sem hamburger por agora)
     - Grids colapsam para 1 coluna

   Breakpoint 2: ≤620px — mobile
     - Header muda para absolute (scroll com página)
     - CTA do header esconde
     - Hero ajusta min-height e overlay
================================================================ */

@media (max-width: 1080px) {

  .features-grid,
  .applications-grid {
    grid-template-columns: 1fr;
  }

  .site-header {
    padding: 22px 28px;
  }

  .main-nav {
    display: none;  /* TODO: adicionar menu hamburger */
  }

  /* Padding horizontal de página reduzido */
  .hero,
  .section,
  .value-strip,
  .site-footer {
    padding-left: 28px;
    padding-right: 28px;
  }

  /* Grids e flex layouts colapsam */
  .value-strip,
  .cards-grid,
  .intro-section,
  .split-section,
  .model-boxes,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .contact-section,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 620px) {

  .hero-values {
    flex-direction: column;
    gap: 20px;
  }

  .site-header {
    position: absolute;  /* deixa de ser fixo — liberta espaço no viewport */
    align-items: flex-start;
  }

  .header-cta {
    display: none;
  }

  .logo-img {
    display: block;
    height: 34px;
    width: auto;
  }

  .hero {
    min-height: 760px;
    padding-top: 130px;
    background-position: center;
  }

  .hero-overlay:not(.componentes-overlay):not(.lowropes-overlay):not(.flexpark-overlay):not(.airhub-overlay):not(.servicos-overlay) {
    /* Em mobile usa gradiente vertical — a imagem não tem área focada à direita */
    background: linear-gradient(
      180deg,
      rgba(244,246,243,0.96)  0%,
      rgba(244,246,243,0.78) 45%,
      rgba(0,0,0,0.2)       100%
    );
  }

  /* Componentes hero mantém-se escuro em mobile */
  .componentes-overlay {
    background:
      linear-gradient(180deg,
        rgba(12,13,15,0.70)  0%,
        rgba(12,13,15,0.85) 100%);
  }

  h1 {
    letter-spacing: -3px;  /* tracking menos agressivo em ecrã pequeno */
  }

  /* Tamanho de texto reduzido em parágrafos de secção */
  .hero-text,
  .intro-text,
  .split-section > div:first-child p:not(.eyebrow),
  .partner-panel p:not(.eyebrow) {
    font-size: 18px;
  }

  /* Padding interno dos cards e painéis reduzido */
  .value-strip div,
  .product-card,
  .model-box,
  .partner-panel {
    padding: 26px;
  }

  .contact-card {
    min-width: 100%;
  }
}