/* ==========================================================================
   LabsBytes — Homepage
   1. Tokens (design system Broadsheet)
   2. Base
   3. Componentes (Broadsheet: botões, cards, tags, navegação)
   4. Página
   ========================================================================== */


/* 1. Tokens ---------------------------------------------------------------- */

/* Tema claro (padrão). As cores usadas pela página são semânticas: cada uma
   ganha outro valor no tema escuro, logo abaixo. */
:root {
  color-scheme: light;

  --color-bg: #f3f2f2;
  --color-surface: #eae9e9;          /* bloco de projeto */
  --color-paper: #ffffff;            /* cards sobre o fundo */
  --color-text: #201e1d;
  --color-text-soft: #444141;        /* parágrafos de apoio */
  --color-text-muted: #605d5d;       /* legendas, rodapé */
  --color-divider: color-mix(in srgb, var(--color-text) 16%, transparent);

  --color-accent: #0088b0;           /* ciano: bits do "L", botão primário */
  --color-accent-2: #d6006c;         /* magenta: bits do "B" */
  --color-accent-hover: #1186ac;
  --color-accent-active: #006786;
  --color-on-accent: #f3f2f2;        /* texto sobre o ciano */
  --color-accent-text: #006786;      /* ciano para texto (links, rótulos) */
  --color-accent-2-text: #aa0b56;
  --color-link-hover: #d6006c;
  --color-icon: #0088b0;
  --color-bit-off: #eae7e7;

  --color-tag-bg: #e9f8ff;
  --color-tag-text: #004961;
  --color-tag-2-bg: #fff1f4;
  --color-tag-2-text: #790e3d;

  --color-cta-bg: #e9f8ff;
  --color-cta-title: #0a303e;
  --color-cta-text: #004961;

  --color-logo-plate: #ffffff;       /* fundo dos logos de projeto */

  --shadow-sm: 0 1px 2px color-mix(in srgb, #2d2b2b 14%, transparent);
  --shadow-md: 0 3px 10px color-mix(in srgb, #2d2b2b 16%, transparent);

  --font-heading: "Source Serif 4", system-ui, sans-serif;
  --font-heading-weight: 600;
  --font-body: "Source Serif 4", system-ui, sans-serif;

  --space-1: 5px;
  --space-2: 10px;
  --space-3: 15px;
  --space-4: 20px;

  --radius-sm: 1px;
  --radius-md: 2px;

  --gutter: clamp(20px, 5vw, 72px);
}

/* Tema escuro: segue o sistema, a menos que o visitante tenha escolhido o claro… */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;

    --color-bg: #161514;
    --color-surface: #1e1c1b;
    --color-paper: #262423;
    --color-text: #ecebea;
    --color-text-soft: #c9c6c4;
    --color-text-muted: #a3a09e;

    --color-accent-text: #62c5ee;
    --color-accent-2-text: #ff90b1;
    --color-link-hover: #ff90b1;
    --color-icon: #38a6cf;
    --color-bit-off: #383533;

    --color-tag-bg: #0a303e;
    --color-tag-text: #99e0ff;
    --color-tag-2-bg: #4b1528;
    --color-tag-2-text: #ffc0d0;

    --color-cta-bg: #0a303e;
    --color-cta-title: #e9f8ff;
    --color-cta-text: #99e0ff;

    --color-logo-plate: #ecebea;

    --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.5);
    --shadow-md: 0 4px 14px rgb(0 0 0 / 0.45);
  }
}

/* …ou quando ele escolhe o escuro no botão. Mesmos valores do bloco acima. */
:root[data-theme="dark"] {
  color-scheme: dark;

  --color-bg: #161514;
  --color-surface: #1e1c1b;
  --color-paper: #262423;
  --color-text: #ecebea;
  --color-text-soft: #c9c6c4;
  --color-text-muted: #a3a09e;

  --color-accent-text: #62c5ee;
  --color-accent-2-text: #ff90b1;
  --color-link-hover: #ff90b1;
  --color-icon: #38a6cf;
  --color-bit-off: #383533;

  --color-tag-bg: #0a303e;
  --color-tag-text: #99e0ff;
  --color-tag-2-bg: #4b1528;
  --color-tag-2-text: #ffc0d0;

  --color-cta-bg: #0a303e;
  --color-cta-title: #e9f8ff;
  --color-cta-text: #99e0ff;

  --color-logo-plate: #ecebea;

  --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.5);
  --shadow-md: 0 4px 14px rgb(0 0 0 / 0.45);
}


/* 2. Base ------------------------------------------------------------------ */

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

html { scroll-behavior: smooth; }

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  font-weight: 400;
  text-wrap: pretty;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 var(--space-2);
}

p { margin: 0 0 var(--space-3); }

a { color: var(--color-accent-text); text-underline-offset: 3px; }
a:not(.btn):hover { color: var(--color-link-hover); }

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

:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }

.nowrap { white-space: nowrap; }


/* 3. Componentes ------------------------------------------------------------ */

/* Botões */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  flex: none;
  cursor: pointer; text-decoration: none; white-space: nowrap;
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 14px; line-height: 1.2; color: var(--color-text);
  background: transparent; border: 1px solid transparent;
  padding: var(--space-2) calc(var(--space-3) * 1.2);
  border-radius: var(--radius-md);
}
.btn-primary { background: var(--color-accent); color: var(--color-on-accent); }
.btn-primary:hover { background: var(--color-accent-hover); }
.btn-primary:active { background: var(--color-accent-active); }
.btn-secondary { border-color: var(--color-divider); }
.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.btn-secondary:active { background: color-mix(in srgb, var(--color-text) 14%, transparent); }
.btn-ghost { color: var(--color-accent-text); padding-inline: var(--space-1); }
.btn-ghost:hover { background: color-mix(in srgb, var(--color-accent) 10%, transparent); }
.btn-ghost:active { background: color-mix(in srgb, var(--color-accent) 18%, transparent); }

/* Cards */
.card {
  display: flex; flex-direction: column; gap: var(--space-2);
  padding: var(--space-3); border-radius: var(--radius-md); background: var(--color-surface);
}
.card-title {
  margin: 0;
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 17px; line-height: 1.2;
}
.card-body { margin: 0; font-size: 13px; opacity: 0.8; flex: 1; }
.elev-sm { box-shadow: var(--shadow-sm); }

/* Tags */
.tag {
  display: inline-flex; align-items: center; font-size: 11px;
  letter-spacing: 0.02em; padding: 3px 10px;
  border-radius: calc(var(--radius-md) * 0.75);
}
.tag-accent { background: var(--color-tag-bg); color: var(--color-tag-text); }
.tag-accent-2 { background: var(--color-tag-2-bg); color: var(--color-tag-2-text); }

/* Navegação */
.nav {
  display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
}
.nav-brand {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 18px; margin-right: auto;
}
.nav a { color: inherit; text-decoration: none; font-size: 14px; white-space: nowrap; }
.nav a:hover { color: var(--color-accent-text); }
.nav .btn-primary,
.nav .btn-primary:hover { color: var(--color-on-accent); }


/* 4. Página ------------------------------------------------------------------ */

.page { min-height: 100vh; display: flex; flex-direction: column; }

.site-nav { padding-inline: var(--gutter); }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* Marca: "L" e "B" em binário (01001100 / 01000010) */
.brand { display: flex; align-items: center; gap: 12px; }
.brand-name { font-weight: 700; font-size: 22px; letter-spacing: -0.01em; }

.bits { display: grid; }
.bit { background: var(--color-bit-off); }
.bit-l { background: var(--color-accent); }
.bit-b { background: var(--color-accent-2); }

.bits-nav { grid-template-columns: repeat(8, 6px); gap: 2px; }
.bits-nav .bit { width: 6px; height: 6px; }

.bits-hero { grid-template-columns: repeat(8, minmax(0, 1fr)); gap: clamp(6px, 1vw, 12px); }
.bits-hero .bit { aspect-ratio: 1; border-radius: var(--radius-sm); }

/* Ícones */
.icon-18 { font-size: 18px; }
.icon-20 { font-size: 20px; }
.icon-22 { font-size: 22px; color: var(--color-icon); }

/* Hero */
.hero {
  padding: 96px 0 112px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr));
  gap: 64px;
  align-items: center;
}
.hero-text { display: flex; flex-direction: column; gap: 32px; }
.hero-title {
  margin: 0;
  font-weight: 700;
  font-size: clamp(40px, 5.2vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.025em;
}
.hero-lead {
  margin: 0;
  font-size: 19px;
  line-height: 1.6;
  max-width: 46ch;
  color: var(--color-text-soft);
}
.actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }

.byte-card {
  background: var(--color-paper);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-md);
  padding: clamp(28px, 4vw, 48px);
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.byte-legend {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 15px;
  color: var(--color-text-muted);
  font-feature-settings: "tnum" 1;
}
.byte-row { display: flex; justify-content: space-between; gap: 16px; }
.byte-letter-l { color: var(--color-accent-text); }
.byte-letter-b { color: var(--color-accent-2-text); }

/* Seções */
.section { padding: 32px 0 96px; display: flex; flex-direction: column; gap: 40px; }
.section-head { display: flex; flex-direction: column; gap: 12px; max-width: 640px; }
.eyebrow { font-size: 16px; color: var(--color-accent-text); font-weight: 600; }
.section-title {
  margin: 0;
  font-weight: 700;
  font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

/* Serviços */
.services {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr)); /* 4 serviços: 4 colunas, 2 no tablet, 1 no celular */
  gap: 24px;
}
@media (max-width: 1000px) { .services { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px)  { .services { grid-template-columns: 1fr; } }
.service { gap: 16px; background: var(--color-paper); }
.service-icon { font-size: 36px; color: var(--color-icon); }

/* Projetos */
.project {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: clamp(24px, 4vw, 56px);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr));
  gap: 48px;
  align-items: center;
}
.project-logo {
  background: var(--color-logo-plate);
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12%;
}
.project-logo img { width: 100%; height: auto; }
.project-logo-dark { /* grafite da marca Orça Aê; o fio fino separa a placa do fundo no tema escuro */
  background: #17181c;
  box-shadow: var(--shadow-sm), inset 0 0 0 1px color-mix(in srgb, var(--color-text) 10%, transparent);
}
.project-heading { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
.project-info { display: flex; flex-direction: column; gap: 20px; }
.project-title {
  margin: 0;
  font-weight: 700;
  font-size: 32px;
  line-height: 1.15;
  letter-spacing: -0.015em;
}
.project-desc {
  margin: 0;
  font-size: 17px;
  line-height: 1.65;
  color: var(--color-text-soft);
  max-width: 46ch;
}
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.project-note {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-soft);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Destaque: robôs de RPA */
.highlight {
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  padding: clamp(24px, 4vw, 40px) clamp(24px, 4vw, 56px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px clamp(24px, 4vw, 48px);
}
.highlight-number {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(48px, 6vw, 72px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-accent-text);
  font-feature-settings: "lnum" 1;
}
.highlight-number i { font-size: 0.7em; color: var(--color-icon); }
.highlight-text { display: flex; flex-direction: column; gap: 8px; flex: 1 1 320px; }
.highlight-title { margin: 0; font-weight: 700; font-size: 24px; line-height: 1.2; letter-spacing: -0.01em; }
.highlight-desc { margin: 0; font-size: 17px; line-height: 1.6; color: var(--color-text-soft); max-width: 60ch; }

/* Contato */
.cta {
  background: var(--color-cta-bg);
  border-radius: var(--radius-md);
  padding: clamp(32px, 5vw, 64px);
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: center;
  justify-content: space-between;
}
.cta-text { display: flex; flex-direction: column; gap: 12px; max-width: 560px; }
.cta-title {
  margin: 0;
  font-weight: 700;
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--color-cta-title);
}
.cta-desc { margin: 0; font-size: 17px; line-height: 1.6; color: var(--color-cta-text); }

/* Rodapé */
.footer {
  padding: 24px 0 48px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
  color: var(--color-text-muted);
}

/* Botões quadrados do menu: idioma (PT/EN) e tema (Sistema → Claro → Escuro) */
.nav-square {
  display: inline-flex; align-items: center; justify-content: center;
  flex: none; width: 36px; height: 36px; padding: 0;
  color: var(--color-text); cursor: pointer;
  background: transparent; border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
}
.nav-square:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); color: var(--color-accent-text); }
.theme-toggle { font-size: 20px; }
.nav .lang-switch { font-family: var(--font-heading); font-weight: 600; font-size: 13px; letter-spacing: 0.04em; }

/* ==========================================================================
   5. Celular
   ========================================================================== */

@media (max-width: 600px) {
  /* Menu: fixo no topo, com marca, idioma, tema e contato sempre à mão */
  .site-nav {
    position: sticky; top: 0; z-index: 10;
    padding-block: 10px;
    background: color-mix(in srgb, var(--color-bg) 95%, transparent);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-divider);
  }
  .nav-link { display: none; }
  .brand { margin-right: auto; }
  .nav-square { width: 40px; height: 40px; }
  .nav-cta { height: 40px; }
  #topo, #top, .section[id] { scroll-margin-top: 72px; } /* âncoras não ficam escondidas sob o menu */

  /* Ritmo vertical mais curto: menos rolagem vazia entre blocos */
  .hero { padding: 40px 0 56px; gap: 40px; }
  .hero-text { gap: 24px; }
  .hero-lead { font-size: 17px; }
  .byte-card { gap: 20px; }
  .section { padding: 16px 0 56px; gap: 28px; }

  /* Botões ocupam a largura disponível: alvo maior para o polegar */
  .actions .btn, .cta > .btn { flex: 1 1 auto; min-height: 46px; }

  /* Serviços: ícone ao lado do título, texto mais legível */
  .services { gap: 12px; }
  .service {
    display: grid; grid-template-columns: auto 1fr; align-items: center;
    gap: 10px 12px; padding: 18px;
  }
  .service-icon { font-size: 28px; }
  .service .card-title { font-size: 18px; }
  .service .card-body { grid-column: 1 / -1; font-size: 15px; line-height: 1.55; }

  /* Projetos: logo mais baixo, textos e tags maiores */
  .project { gap: 24px; padding: 20px; }
  .project-logo { aspect-ratio: 16 / 9; padding: 8% 14%; }
  .project-info { gap: 16px; }
  .project-title { font-size: 28px; }
  .project-desc { font-size: 16px; }
  .tag { font-size: 12px; padding: 4px 10px; }
  .project-note { font-size: 15px; align-items: flex-start; }
  .project-note i { margin-top: 1px; }

  .highlight { padding: 20px; }
  .highlight-title { font-size: 21px; }
  .highlight-desc { font-size: 16px; }

  .cta { padding: 28px 20px; gap: 24px; }
  .footer { padding: 8px 0 32px; }
}

@media (max-width: 420px) {
  :root { --gutter: 16px; } /* mesma margem lateral no menu e no conteúdo */
  .site-nav { gap: 8px; }
  .brand { gap: 10px; }
  .nav-cta-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .nav-cta { padding-inline: var(--space-2); }
}

/* Celulares bem estreitos (320–359px): o nome basta na marca, os bits continuam no hero */
@media (max-width: 359px) {
  .bits-nav { display: none; }
}