/* Landing do exoconexo (landing-exoconexo, ADR-001): desktop retrô dos anos
   2000 com metalurgia steampunk (ferro, aço, rebites e cobre). Só fontes do sistema, nada de terceiros. */

:root {
  /* Metalurgia: ferro, aço escovado e rebites; cobre só nos detalhes. */
  --fundo: #121518;
  --fundo-claro: #1d2329;
  --papel: #cfd5da;
  --papel-claro: #e3e7ea;
  --papel-escuro: #b9c0c6;
  --tinta: #15191c;
  --aco: #b8c2ca;
  --aco-escuro: #4f5b65;
  --cobre: #7f3f1c;
  --cobre-vivo: #b0653a;
  --cobre-claro: #e0935f;
  --verde-crt: #7cfc9a;
  --luz: #f2f5f7;
  --sombra: #2a3239;
  --titulo-1: #2a3239;
  --titulo-2: #4f5b65;
  --titulo-texto: #27313a;
  --fonte-texto: Verdana, Tahoma, "DejaVu Sans", sans-serif;
  --fonte-titulo: Georgia, "Times New Roman", serif;
  --fonte-tela: "Courier New", "Lucida Console", "DejaVu Sans Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--fundo);
  background-image:
    radial-gradient(ellipse at center, rgba(184, 194, 202, 0.10) 0%, rgba(0, 0, 0, 0) 60%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.018) 0 1px, rgba(0, 0, 0, 0) 1px 4px),
    repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.25) 0 2px, rgba(0, 0, 0, 0) 2px 120px);
  color: var(--tinta);
  font-family: var(--fonte-texto);
  font-size: 16px;
  line-height: 1.6;
}

/* Linhas de varredura do monitor CRT, por cima de tudo. */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.18) 0 1px, rgba(0, 0, 0, 0) 1px 3px);
  box-shadow: inset 0 0 160px rgba(0, 0, 0, 0.75);
  z-index: 10;
}

a { color: var(--cobre); }
a:focus-visible, .botao:focus-visible { outline: 3px dashed var(--verde-crt); outline-offset: 3px; }
/* No papel claro das janelas o verde do CRT some: foco escuro com halo claro. */
.janela a:focus-visible { outline: 3px solid var(--tinta); outline-offset: 2px; box-shadow: 0 0 0 6px var(--luz); }

.pular {
  position: absolute;
  left: -9999px;
  top: 8px;
  background: var(--papel);
  padding: 8px 12px;
  z-index: 20;
}
.pular:focus { left: 8px; }

/* Barra de menu */
.barra-de-menu {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  padding: 10px 16px;
  background: linear-gradient(180deg, #2c343b, #161b20);
  border-bottom: 3px solid var(--cobre-vivo);
  color: var(--papel);
}
.marca {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--aco);
  font-family: var(--fonte-titulo);
  font-size: 1.4rem;
  font-weight: bold;
  text-decoration: none;
  letter-spacing: 0.04em;
}
.engrenagem-pequena { width: 32px; height: 32px; animation: girar 12s linear infinite; }
.barra-de-menu nav { display: flex; flex-wrap: wrap; gap: 6px; }
.barra-de-menu nav a {
  color: var(--papel);
  text-decoration: none;
  font-family: var(--fonte-tela);
  padding: 4px 10px;
  border: 2px solid;
  border-color: #4a545d #0b0e10 #0b0e10 #4a545d;
  background: var(--fundo-claro);
}
.barra-de-menu nav a:hover { color: var(--verde-crt); }

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px 16px 40px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

/* Janelas com bordas chanfradas */
.janela {
  background-color: var(--papel);
  background-image:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.10) 0 1px, rgba(0, 0, 0, 0) 1px 3px),
    linear-gradient(180deg, var(--papel-claro), var(--papel));
  border: 3px solid;
  border-color: var(--luz) var(--sombra) var(--sombra) var(--luz);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.55), 0 0 0 1px #000;
  scroll-margin-top: 16px;
}
.barra-de-titulo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 6px 4px 10px;
  background: linear-gradient(90deg, var(--titulo-1), var(--titulo-2));
  color: var(--luz);
  font-family: var(--fonte-tela);
  font-weight: bold;
  font-size: 0.9rem;
}
.nome-da-janela { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.botoes { display: flex; gap: 3px; flex-shrink: 0; }
.botoes span {
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 18px;
  font-size: 0.8rem;
  line-height: 1;
  color: var(--tinta);
  background: var(--papel-escuro);
  border: 2px solid;
  border-color: var(--luz) var(--sombra) var(--sombra) var(--luz);
}
.corpo { padding: 20px 24px 24px; }

h1, h2 { font-family: var(--fonte-titulo); color: var(--titulo-texto); line-height: 1.15; margin: 0 0 12px; }
h1 { font-size: clamp(2.6rem, 8vw, 4.2rem); letter-spacing: 0.02em; color: var(--cobre); text-shadow: 1px 1px 0 var(--luz), 2px 2px 0 var(--papel-escuro); }
h2 { font-size: clamp(1.5rem, 4vw, 2rem); }
p { margin: 0 0 14px; }
code { font-family: var(--fonte-tela); background: var(--papel-escuro); padding: 1px 5px; }

.sobretitulo {
  font-family: var(--fonte-tela);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cobre);
  font-weight: bold;
  margin-bottom: 4px;
}
.lead { font-size: 1.1rem; }

/* Herói */
.heroi-corpo { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 24px; align-items: center; }
.maquina { width: 100%; height: auto; background: var(--fundo-claro); border: 3px solid; border-color: var(--sombra) var(--luz) var(--luz) var(--sombra); }
.engrenagem-grande { animation: girar 20s linear infinite; transform-box: fill-box; transform-origin: center; }
.olho { font-family: var(--fonte-tela); font-size: 26px; font-weight: bold; }
.lampadas circle { animation: pulsar 2.4s ease-in-out infinite; }
.lampadas circle:nth-child(2) { animation-delay: 0.4s; }
.lampadas circle:nth-child(3) { animation-delay: 0.8s; }
.lampadas circle:nth-child(4) { animation-delay: 1.2s; }
.lampadas circle:nth-child(5) { animation-delay: 1.6s; }

/* Botões chanfrados */
.acoes { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.botao {
  display: inline-block;
  max-width: 100%;
  overflow-wrap: anywhere;
  padding: 10px 18px;
  font-family: var(--fonte-tela);
  font-weight: bold;
  color: var(--tinta);
  text-decoration: none;
  background: var(--papel-escuro);
  border: 3px solid;
  border-color: var(--luz) var(--sombra) var(--sombra) var(--luz);
}
.botao:active { border-color: var(--sombra) var(--luz) var(--luz) var(--sombra); }
.botao-principal { background: linear-gradient(180deg, #9a5428, #6e3517); color: #fbf7f2; border-color: #c47a4a #3d1d0b #3d1d0b #c47a4a; }
.botao-principal:hover { background: linear-gradient(180deg, #a85d2e, #7a3d1c); }

.lista-de-rebites { padding-left: 0; list-style: none; margin: 0 0 14px; }
.lista-de-rebites li { position: relative; padding-left: 26px; margin-bottom: 6px; }
.lista-de-rebites li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.55em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #f2f5f7, #6b7782);
  box-shadow: 0 0 0 2px var(--sombra);
}

/* Terminal do MCP */
.duas-colunas { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; align-items: start; }
.terminal {
  background: #0b120d;
  color: var(--verde-crt);
  font-family: var(--fonte-tela);
  font-size: 0.9rem;
  padding: 16px;
  border: 3px solid;
  border-color: var(--sombra) var(--luz) var(--luz) var(--sombra);
  text-shadow: 0 0 6px rgba(124, 252, 154, 0.6);
  overflow-wrap: anywhere;
}
.terminal p { margin: 0 0 8px; }
.prompt { color: var(--cobre-claro); }
.cursor { animation: piscar 1s steps(1) infinite; }

/* Fluxo */
.fluxo { list-style: none; padding: 0; margin: 0 0 18px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; counter-reset: passo; }
.fluxo li {
  counter-increment: passo;
  position: relative;
  padding: 14px 14px 14px 52px;
  background: var(--papel-escuro);
  border: 2px solid;
  border-color: var(--sombra) var(--luz) var(--luz) var(--sombra);
}
.fluxo li::before {
  content: counter(passo);
  position: absolute;
  left: 12px;
  top: 12px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-family: var(--fonte-tela);
  font-weight: bold;
  color: #fbf7f2;
  background: radial-gradient(circle at 35% 35%, #c47a4a, #5e2c12);
}
.fluxo strong { display: block; font-family: var(--fonte-titulo); color: var(--titulo-texto); }
.fluxo span { font-size: 0.92rem; }

.destaque { box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.55), 0 0 0 1px #000, 0 0 24px rgba(176, 101, 58, 0.45); }

/* Barra de tarefas */
.barra-de-tarefas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 6px 10px;
  background: linear-gradient(180deg, #2c343b, #121518);
  border-top: 3px solid var(--cobre-vivo);
  color: var(--papel);
  font-family: var(--fonte-tela);
  font-size: 0.9rem;
}
.barra-de-tarefas a { color: var(--cobre-claro); }
.iniciar, .tarefa, .relogio {
  padding: 3px 10px;
  border: 2px solid;
  border-color: #4a545d #0b0e10 #0b0e10 #4a545d;
  background: var(--fundo-claro);
}
.iniciar { display: inline-flex; align-items: center; gap: 6px; font-weight: bold; color: var(--aco); }
.icone { width: 16px; height: 16px; }
.relogio { margin-left: auto; border-color: #0b0e10 #4a545d #4a545d #0b0e10; }

@keyframes girar { to { transform: rotate(360deg); } }
@keyframes pulsar { 0%, 100% { opacity: 0.35; } 50% { opacity: 1; } }
@keyframes piscar { 50% { opacity: 0; } }

@media (max-width: 760px) {
  .heroi-corpo, .duas-colunas, .fluxo { grid-template-columns: minmax(0, 1fr); }
  .corpo { padding: 16px; }
  .relogio { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .engrenagem-pequena, .engrenagem-grande, .lampadas circle, .cursor { animation: none; }
}