/* ============================================================
   SYSTEM TGF — base.css
   Variáveis, reset, tipografia base, header/footer, botões
   e modal de autenticação. Compartilhado por TODAS as páginas.
   ============================================================ */

/* ---------- Tokens / variáveis CSS ---------- */
:root {
  --bg: #0c0c0c;
  --text: #cccccc;
  --green: #00ff00;
  --red: #ff3333;
  --blue: #3399ff;
  --yellow: #ffff00;
  --orange: #ffaa00;
  --border: #333333;
  --font: 'Consolas', 'Monaco', 'Courier New', monospace;
}

/* ---------- Reset ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ---------- Body base ---------- */
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
  padding: 20px;
  line-height: 1.4;
}

/* ---------- Container ---------- */
.container {
  max-width: 1100px;
  margin: 0 auto;
}

/* ---------- Header (barra superior) ---------- */
.topo {
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
  margin-bottom: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.topo-left {
  font-size: 11px;
  color: var(--border);
}

.topo-right a {
  color: var(--green);
  font-size: 12px;
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 6px 14px;
  letter-spacing: 1px;
  display: inline-block;
}

.topo-right a:hover {
  border-color: var(--green);
}

/* ---------- Tipografia base de página ---------- */
h1 {
  color: var(--green);
  font-size: clamp(24px, 5vw, 52px);
  letter-spacing: 3px;
  margin-bottom: 8px;
}

.subtitle {
  font-size: 13px;
  color: #888;
  margin-bottom: 30px;
  letter-spacing: 1px;
}

/* ---------- Botão padrão (call-to-GPT) ---------- */
.btn-gpt {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border: 1px solid var(--green);
  color: var(--green);
  font-size: 12px;
  text-transform: uppercase;
  cursor: pointer;
  background: transparent;
  font-family: var(--font);
  letter-spacing: 1px;
  transition: all 0.2s ease;
  border-radius: 4px;
  min-height: 44px;
}

.btn-gpt:hover {
  background: var(--green);
  color: #000;
}

.btn-gpt svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ---------- Botão de autenticação (amarelo) ---------- */
.btn-auth {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border: 1px solid var(--yellow);
  color: var(--yellow);
  font-size: 12px;
  text-transform: uppercase;
  cursor: pointer;
  background: transparent;
  font-family: var(--font);
  letter-spacing: 1px;
  transition: all 0.2s ease;
  border-radius: 4px;
  min-height: 44px;
}

.btn-auth:hover {
  background: var(--yellow);
  color: #000;
}

/* ---------- Modal de autenticação compartilhado ---------- */
.auth-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.auth-overlay.visible {
  display: flex;
}

.auth-box {
  border: 1px solid var(--green);
  padding: 30px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  background: var(--bg);
}

.auth-box h2 {
  color: var(--green);
  font-size: 14px;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.auth-box p {
  font-size: 12px;
  color: #888;
  margin-bottom: 20px;
}

#auth-error {
  color: var(--red);
  font-size: 12px;
  margin-top: 10px;
  min-height: 18px;
}

#auth-loading {
  color: #888;
  font-size: 12px;
  margin-top: 8px;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  font-size: 11px;
  color: var(--border);
  margin-top: 20px;
  text-align: left;
}

/* ============================================================
   MOBILE — telas até 768px
   Regra geral: tudo empilha em coluna única, um item por linha.
   ============================================================ */
@media (max-width: 768px) {
  body {
    padding: 14px;
  }

  /* Header colapsa em coluna: logo em cima, link embaixo */
  .topo {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding-bottom: 12px;
    margin-bottom: 22px;
  }

  .topo-right a {
    display: block;
    width: 100%;
    text-align: center;
  }

  /* Botões ocupam largura total no mobile */
  .btn-gpt,
  .btn-auth {
    width: 100%;
  }

  /* Modal mais confortável em telas pequenas */
  .auth-box {
    padding: 22px 18px;
  }

  /* Quebra de palavras longas (URLs, tokens) */
  body,
  p,
  a,
  span {
    word-wrap: break-word;
    overflow-wrap: break-word;
  }
}

/* ---------- Telas muito pequenas (≤ 380px) ---------- */
@media (max-width: 380px) {
  body {
    padding: 10px;
  }

  h1 {
    letter-spacing: 2px;
  }
}