/*
  Luz Tecnologia · luz.tec.br
  Cores, fontes e grafismo seguem o Manual da marca v1.0 (repositório identidade-visual).
  Regras que valem para todo o arquivo:
  - Âmbar só como destaque e só sobre Azul-noite. Nunca sobre branco ou Névoa.
  - Um destaque por bloco.
  - O quarto de sol fica sempre num canto inferior, cortado pelas bordas, nunca sob texto.
*/

/* ---------- Tokens ---------- */
:root {
  color-scheme: light;

  --azul-noite: #0E1A2B;
  --azul-noite-hover: #1C2C44;
  --ambar: #F5A623;
  --nevoa: #F3F5F8;
  --ardosia: #5B6677;
  --branco: #FFFFFF;
  --linha: #DDE2EA;
  --texto-apoio-escuro: #C3CAD5; /* texto de apoio sobre Azul-noite (≈ 11:1) */
  --linha-escura: rgba(255, 255, 255, 0.18);

  --font-sans: "Manrope", Arial, Helvetica, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --gutter: 16px;
  --container: 1200px;
  --header-h: 72px;
  --radius: 14px;
  --radius-sm: 10px;
}

@media (min-width: 720px) {
  :root {
    --gutter: 32px;
    --header-h: 88px;
  }
}

@media (min-width: 1100px) {
  :root { --gutter: 40px; }
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--header-h);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--azul-noite);
  background: var(--branco);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1, h2, h3 {
  margin: 0;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

h2 { font-size: clamp(2rem, 1.45rem + 2.4vw, 3rem); }

h3 {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

p { margin: 0; }

a { color: inherit; }

::selection { background: var(--azul-noite); color: var(--branco); }

:focus-visible {
  outline: 3px solid var(--azul-noite);
  outline-offset: 3px;
  border-radius: 4px;
}

.section--dark :focus-visible { outline-color: var(--branco); }

.mono {
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--gutter);
  z-index: 100;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  background: var(--azul-noite);
  color: var(--branco);
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus { top: 12px; }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: calc(var(--container) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow { max-width: calc(800px + 2 * var(--gutter)); }

.section { padding-block: clamp(4rem, 2.8rem + 5vw, 7.5rem); }
.section--mist { background: var(--nevoa); }
.section--dark { background: var(--azul-noite); color: var(--branco); }

.section__header {
  max-width: 44rem;
  margin-bottom: clamp(2.5rem, 2rem + 2vw, 4rem);
}

.section__lead {
  margin-top: 1rem;
  font-size: 1.125rem;
  color: var(--ardosia);
}

.eyebrow {
  margin-bottom: 1rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ardosia);
}

.eyebrow--light { color: var(--texto-apoio-escuro); }

/* ---------- Botões ---------- */
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 1.5rem;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

@media (max-width: 479px) {
  .actions .btn { flex: 1 1 100%; }
}

.btn--small {
  min-height: 42px;
  padding: 0.5rem 1.125rem;
  font-size: 0.9375rem;
}

.btn--dark { background: var(--azul-noite); color: var(--branco); }
.btn--dark:hover { background: var(--azul-noite-hover); }

.btn--light { background: var(--branco); color: var(--azul-noite); }
.btn--light:hover { background: var(--nevoa); }

.btn--outline-light {
  border-color: rgba(255, 255, 255, 0.45);
  color: var(--branco);
}

.btn--outline-light:hover {
  border-color: var(--branco);
  background: rgba(255, 255, 255, 0.06);
}

/* ---------- Cabeçalho ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--branco);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.site-header.is-scrolled,
.menu-open .site-header { border-bottom-color: var(--linha); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: var(--header-h);
}

.brand { display: block; flex-shrink: 0; }

/* Celular: versão reduzida (80 a 170 px). Telas maiores: assinatura completa (a partir de 170 px). */
.brand img { width: auto; height: 48px; }

@media (min-width: 720px) {
  .brand img { height: 64px; }
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a:not(.btn) {
  text-decoration: none;
  color: var(--azul-noite);
}

/* Menu no celular */
@media (max-width: 959px) {
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    min-height: 44px;
    padding: 0.5rem 0.875rem;
    border: 1px solid var(--linha);
    border-radius: var(--radius-sm);
    background: var(--branco);
    color: var(--azul-noite);
    font: inherit;
    font-size: 0.9375rem;
    font-weight: 700;
    cursor: pointer;
  }

  .menu-toggle__bars,
  .menu-toggle__bars::before,
  .menu-toggle__bars::after {
    display: block;
    width: 18px;
    height: 2px;
    background: currentColor;
    transition: transform 0.2s ease, background-color 0.2s ease;
  }

  .menu-toggle__bars { position: relative; }

  .menu-toggle__bars::before,
  .menu-toggle__bars::after {
    content: "";
    position: absolute;
    left: 0;
  }

  .menu-toggle__bars::before { top: -6px; }
  .menu-toggle__bars::after { top: 6px; }

  .menu-toggle[aria-expanded="true"] .menu-toggle__bars { background: transparent; }
  .menu-toggle[aria-expanded="true"] .menu-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] .menu-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

  .site-nav {
    display: none;
    position: fixed;
    inset: var(--header-h) 0 0 0;
    padding: 1rem var(--gutter) 2rem;
    overflow-y: auto;
    background: var(--branco);
  }

  .menu-open .site-nav { display: block; }
  body.menu-open { overflow: hidden; }

  .site-nav a:not(.btn) {
    display: block;
    padding: 1rem 0;
    border-bottom: 1px solid var(--linha);
    font-size: 1.25rem;
    font-weight: 700;
  }

  .site-nav__list .btn {
    width: 100%;
    margin-top: 1.5rem;
    min-height: 52px;
    font-size: 1rem;
  }

  /* Sem JavaScript: o menu aparece aberto, abaixo do logo. */
  html:not(.js) .menu-toggle { display: none; }
  html:not(.js) .site-header__inner { flex-wrap: wrap; height: auto; padding-block: 0.75rem; }
  html:not(.js) .site-nav { display: block; position: static; width: 100%; padding: 0; }
  html:not(.js) .site-nav__list { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1.25rem; }
  html:not(.js) .site-nav a:not(.btn) { padding: 0.25rem 0; border: 0; font-size: 1rem; }
  html:not(.js) .site-nav__list .btn { width: auto; margin-top: 0; }
}

/* Menu em telas largas */
@media (min-width: 960px) {
  .menu-toggle { display: none; }

  .site-nav__list {
    display: flex;
    align-items: center;
    gap: clamp(1.25rem, 2vw, 2.25rem);
  }

  .site-nav a:not(.btn) {
    padding-block: 0.375rem;
    border-bottom: 2px solid transparent;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: border-color 0.2s ease;
  }

  .site-nav a:not(.btn):hover { border-bottom-color: var(--linha); }
  .site-nav a.is-active { border-bottom-color: var(--azul-noite); }
}

/* ---------- Quarto de sol (grafismo) ---------- */
/* Círculo Âmbar com centro no canto inferior direito: só um quarto aparece, cortado pelas bordas. */
.sun {
  --sun-r: clamp(140px, 24vw, 320px);
  position: relative;
  overflow: hidden;
  /* Abaixo de 960 px o texto ocupa a largura toda, então o sol ganha um espaço só dele embaixo. */
  padding-bottom: calc(var(--sun-r) + 2.5rem);
}

.sun::after {
  content: "";
  position: absolute;
  right: calc(var(--sun-r) * -1);
  bottom: calc(var(--sun-r) * -1);
  width: calc(var(--sun-r) * 2);
  height: calc(var(--sun-r) * 2);
  border-radius: 50%;
  background: var(--ambar);
  pointer-events: none;
}

.sun > .container { position: relative; z-index: 1; }

/* O texto nunca passa de 40rem; em telas largas isso já deixa o canto do sol livre. */
.sun > .container > * { max-width: 40rem; }

@media (min-width: 960px) {
  .sun { padding-bottom: clamp(4rem, 2.8rem + 5vw, 7.5rem); }
}

/* ---------- Início ---------- */
.hero { padding-top: clamp(4.5rem, 3rem + 6vw, 8.5rem); }

.hero__title {
  font-size: clamp(2.75rem, 1.5rem + 5.4vw, 5rem);
  letter-spacing: -0.03em;
}

.hero__lead {
  margin-top: 1.5rem;
  font-size: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  color: var(--texto-apoio-escuro);
}

@media (min-width: 960px) {
  .hero { padding-bottom: clamp(5rem, 3rem + 6vw, 9rem); }
}

/* ---------- Cartões ---------- */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 640px) {
  .cards--2,
  .cards--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 960px) {
  .cards--3 { grid-template-columns: repeat(3, 1fr); }
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  border-radius: var(--radius);
  background: var(--branco);
}

.card p { color: var(--ardosia); }
.card--mist { background: var(--nevoa); }

.card__number {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--azul-noite);
}

.tag {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ardosia);
}

.card .tag { color: var(--ardosia); }

/* ---------- Como trabalhamos ---------- */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 640px) {
  .steps { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 960px) {
  .steps { grid-template-columns: repeat(4, 1fr); }
}

.step {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--linha-escura);
}

/* O destaque deste bloco: números em Âmbar sobre Azul-noite. */
.step__number {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  color: var(--ambar);
}

.step p { color: var(--texto-apoio-escuro); }

/* ---------- Sobre ---------- */
.about {
  display: grid;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 960px) {
  .about { grid-template-columns: 1.4fr 1fr; gap: 5rem; }
}

.about__text h2 { margin-bottom: 1.5rem; }
.about__text p + p { margin-top: 1rem; }
.about__text > p:not(.eyebrow) { font-size: 1.125rem; }

.about__figure {
  display: grid;
  place-items: center;
  margin: 0;
  padding: clamp(2.5rem, 2rem + 4vw, 5rem);
  border-radius: var(--radius);
  background: var(--nevoa);
}

.about__figure img { width: clamp(140px, 28vw, 240px); }

.values {
  display: grid;
  gap: 1.5rem;
  margin: 2.5rem 0 0;
}

@media (min-width: 640px) {
  .values { grid-template-columns: repeat(3, 1fr); }
}

.values div {
  padding-top: 1rem;
  border-top: 2px solid var(--azul-noite);
}

.values dt { font-weight: 700; }

.values dd {
  margin: 0.375rem 0 0;
  font-size: 0.9375rem;
  color: var(--ardosia);
}

/* ---------- Perguntas frequentes ---------- */
.faq { display: grid; gap: 0.75rem; }

.faq details {
  border-radius: var(--radius-sm);
  background: var(--branco);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 1.375rem;
  font-weight: 400;
  line-height: 1;
  transition: transform 0.2s ease;
}

.faq details[open] summary::after { transform: rotate(45deg); }

.faq summary:focus-visible { outline-offset: -3px; border-radius: var(--radius-sm); }

.faq details p {
  padding: 0 1.5rem 1.5rem;
  color: var(--ardosia);
}

/* ---------- Contato ---------- */
.contact h2 { font-size: clamp(2.25rem, 1.5rem + 3vw, 3.5rem); }

.contact__lead {
  margin-top: 1rem;
  font-size: 1.125rem;
  color: var(--texto-apoio-escuro);
}

.contact__list {
  display: grid;
  gap: 1.25rem;
  margin: 2.5rem 0 0;
  padding: 0;
  list-style: none;
}

.contact__list li {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.contact__label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--texto-apoio-escuro);
}

.contact__list a {
  font-size: 1.125rem;
  font-weight: 500;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.contact__list a:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ---------- Rodapé ---------- */
.site-footer {
  padding-block: 2.5rem;
  border-top: 1px solid var(--linha);
  background: var(--branco);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem 3rem;
}

/* Assinatura completa: mínimo de 170 px de largura. */
.site-footer__logo { width: 176px; height: auto; }

.site-footer__info {
  display: grid;
  gap: 0.25rem;
  font-size: 0.875rem;
  color: var(--ardosia);
}

@media (min-width: 720px) {
  .site-footer__info { text-align: right; }
}

/* ---------- Página 404 ---------- */
.not-found {
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
  display: flex;
  align-items: center;
}

.not-found__code {
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  color: var(--texto-apoio-escuro);
}

/* ---------- Animação de entrada ---------- */
/* A classe .reveal só entra pelo JavaScript e só quando o usuário aceita movimento. */
.reveal [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .reveal [data-reveal] { opacity: 1; transform: none; }
}