/* ==========================================================================
   BotFriends — Componentes reutilizáveis
   Logo, botões, pills, indicadores, janelas de terminal/código, header e
   footer. Tudo aqui é reaproveitável por páginas futuras (/entrar, /cadastro,
   /dashboard, /docs) sem depender do CSS da landing page.
   ========================================================================== */

/* =========================================================== 1. LOGO/MARCA */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  border-radius: var(--r-sm);
}

.logo__mark {
  width: 1.875rem;
  height: 1.875rem;
  flex: none;
  border-radius: 9px;
  box-shadow: 0 4px 14px -6px rgba(88, 101, 242, 0.9);
  transition: transform var(--dur) var(--ease);
}

.logo:hover .logo__mark {
  transform: translateY(-1px) rotate(-3deg);
}

.logo__word {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.022em;
  line-height: 1;
  white-space: nowrap;
}

/* Diferenciação sutil entre as duas metades da marca */
.logo__word b {
  font-weight: 700;
  color: var(--brand-500);
}

.logo--lg .logo__mark {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 11px;
}

.logo--lg .logo__word {
  font-size: 1.3rem;
}

/* ============================================================== 2. BOTÕES */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0 1.15rem;
  border: 1px solid transparent;
  border-radius: var(--r-md);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: -0.008em;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease), color var(--dur) var(--ease),
    transform var(--dur-fast) var(--ease), box-shadow var(--dur) var(--ease);
}

.btn:active {
  transform: translateY(1px);
}

/* Primário — a única cor cheia da marca em botões */
.btn--primary {
  background-color: var(--brand-500);
  color: #fff;
  box-shadow: 0 10px 24px -14px rgba(88, 101, 242, 0.95);
}

.btn--primary:hover {
  background-color: var(--brand-400);
  box-shadow: 0 14px 30px -14px rgba(88, 101, 242, 1);
}

/* Secundário — contorno discreto */
.btn--ghost {
  background-color: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}

.btn--ghost:hover {
  background-color: rgba(255, 255, 255, 0.045);
  border-color: rgba(255, 255, 255, 0.22);
}

/* Terciário — só texto, usado no header */
.btn--quiet {
  color: var(--text-muted);
  padding-inline: 0.75rem;
}

.btn--quiet:hover {
  color: var(--text);
}

.btn--lg {
  min-height: 3.125rem;
  padding-inline: 1.6rem;
  font-size: 1rem;
  border-radius: 13px;
}

.btn--block {
  width: 100%;
}

/* Seta que desliza no hover (microinteração discreta) */
.btn__arrow {
  transition: transform var(--dur) var(--ease);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

/* ======================================================= 3. PILLS / TAGS */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.85rem 0.4rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  background-color: var(--brand-tint-06);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--text-muted);
}

.pill strong {
  color: var(--text);
  font-weight: 600;
}

.tag {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: var(--r-full);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.5;
  white-space: nowrap;
}

.tag--brand {
  background-color: var(--brand-tint-16);
  color: var(--brand-300);
}

.tag--soon {
  background-color: var(--accent-tint-12);
  color: var(--accent-500);
}

/* =============================================== 4. INDICADOR DE STATUS */
.dot {
  position: relative;
  width: 0.5rem;
  height: 0.5rem;
  flex: none;
  border-radius: 50%;
  background-color: var(--status-online);
}

/* Halo que pulsa suavemente — sem redimensionar o elemento em layout */
.dot::after {
  content: "";
  position: absolute;
  inset: -0.25rem;
  border-radius: 50%;
  background-color: var(--status-online);
  opacity: 0.35;
  animation: bf-pulse 2.6s var(--ease) infinite;
}

.dot--brand {
  background-color: var(--brand-400);
}

.dot--brand::after {
  background-color: var(--brand-400);
}

@keyframes bf-pulse {
  0% {
    transform: scale(0.6);
    opacity: 0.5;
  }
  70%,
  100% {
    transform: scale(1.35);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .dot::after {
    display: none;
  }
}

/* ================================================ 5. JANELA (TERMINAL/CÓDIGO) */
.window {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background-color: var(--surface-inset);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

/* Fio de luz no topo — detalhe fino que dá acabamento à janela */
.window::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(124, 131, 255, 0.55),
    transparent
  );
}

.window__bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0 1rem;
  height: 2.75rem;
  border-bottom: 1px solid var(--border);
  background-color: rgba(255, 255, 255, 0.022);
}

.window__dots {
  display: flex;
  gap: 0.375rem;
  flex: none;
}

.window__dots span {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.14);
}

.window__title {
  flex: 1;
  min-width: 0;
  text-align: center;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--text-subtle);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.window__badge {
  flex: none;
  width: 2.25rem;
  display: flex;
  justify-content: flex-end;
  color: var(--text-subtle);
}

.window__body {
  padding: 1.15rem 1.25rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.9;
  color: var(--text-muted);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

@media (min-width: 480px) {
  .window__body {
    font-size: 0.875rem;
    padding: 1.35rem 1.5rem 1.5rem;
  }
}

.window__body pre {
  margin: 0;
  font-size: inherit;
  line-height: inherit;
}

/* Linhas do terminal */
.line {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  white-space: pre;
}

.line--gap {
  height: 0.7rem;
}

.tok-prompt {
  color: var(--brand-400);
  font-weight: 600;
}

.tok-cmd {
  color: var(--text);
  font-weight: 500;
}

.tok-ok {
  color: var(--status-online);
  font-weight: 600;
}

.tok-dim {
  color: var(--text-subtle);
}

.tok-key {
  color: var(--brand-300);
}

.tok-str {
  color: #93e3bd;
}

.tok-punc {
  color: var(--text-subtle);
}

.tok-comment {
  color: var(--text-subtle);
  font-style: italic;
}

/* Cursor piscando ao final da saída */
.caret {
  display: inline-block;
  width: 0.5rem;
  height: 1em;
  vertical-align: -0.12em;
  background-color: var(--brand-400);
  animation: bf-caret 1.15s steps(2, start) infinite;
}

@keyframes bf-caret {
  50% {
    opacity: 0;
  }
}

/* Rodapé de status dentro da janela */
.window__status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

.window__status strong {
  color: var(--status-online);
  font-weight: 700;
  letter-spacing: 0.06em;
}

/* Entrada escalonada das linhas (apenas enfeite, conteúdo já está no HTML) */
.js .window--animated .line,
.js .window--animated .window__status {
  opacity: 0;
  animation: bf-line-in 0.42s var(--ease) forwards;
  animation-delay: var(--delay, 0s);
}

@keyframes bf-line-in {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .js .window--animated .line,
  .js .window--animated .window__status {
    opacity: 1;
    animation: none;
  }
  .caret {
    animation: none;
  }
}

/* ============================================================= 6. HEADER */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease), backdrop-filter var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header.is-stuck {
  background-color: rgba(11, 16, 32, 0.78);
  border-bottom-color: var(--border);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  backdrop-filter: saturate(150%) blur(14px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--s-5);
  height: var(--header-h);
}

.site-nav {
  display: none;
  align-items: center;
  gap: 0.25rem;
  margin-inline: auto;
}

.site-nav a {
  display: block;
  padding: 0.5rem 0.85rem;
  border-radius: var(--r-sm);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.site-nav a:hover {
  color: var(--text);
  background-color: rgba(255, 255, 255, 0.04);
}

.site-nav a[aria-current="true"] {
  color: var(--text);
}

.site-header__actions {
  display: none;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

/* Botão hambúrguer (só mobile) */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.75rem;
  height: 2.75rem;
  margin-left: auto;
  padding: 0 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background-color: rgba(255, 255, 255, 0.03);
}

.nav-toggle span {
  display: block;
  height: 1.5px;
  width: 100%;
  border-radius: 2px;
  background-color: var(--text);
  transition: transform var(--dur) var(--ease), opacity var(--dur-fast) var(--ease);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Painel mobile */
.mobile-nav {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  z-index: 99;
  max-height: calc(100dvh - var(--header-h));
  overflow-y: auto;
  padding: var(--s-4) var(--container-pad) var(--s-6);
  background-color: rgba(11, 16, 32, 0.97);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  visibility: hidden;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease),
    visibility var(--dur) var(--ease);
}

.mobile-nav.is-open {
  visibility: visible;
  opacity: 1;
  transform: none;
}

/* Véu que escurece o restante da página enquanto o menu está aberto */
.nav-scrim {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  z-index: 98;
  background-color: rgba(4, 7, 16, 0.72);
  visibility: hidden;
  opacity: 0;
  transition: opacity var(--dur) var(--ease), visibility var(--dur) var(--ease);
}

.nav-scrim.is-open {
  visibility: visible;
  opacity: 1;
}

.mobile-nav a.mobile-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0.25rem;
  border-bottom: 1px solid var(--border);
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--text);
}

.mobile-nav__actions {
  display: grid;
  gap: 0.6rem;
  margin-top: var(--s-5);
}

@media (min-width: 900px) {
  .site-nav,
  .site-header__actions {
    display: flex;
  }
  .nav-toggle,
  .mobile-nav,
  .nav-scrim {
    display: none;
  }
}

/* ============================================================= 7. FOOTER */
.site-footer {
  border-top: 1px solid var(--border);
  background-color: var(--bg-raised);
  padding-block: clamp(3rem, 6vw, 4.5rem) 0;
}

.site-footer__grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .site-footer__grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .site-footer__brand {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .site-footer__grid {
    grid-template-columns: 1.6fr repeat(3, 1fr);
    gap: 2rem;
  }
  .site-footer__brand {
    grid-column: auto;
  }
}

.site-footer__brand p {
  margin-top: var(--s-4);
  max-width: 22rem;
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.footer-col h2 {
  margin: 0 0 var(--s-4);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--text);
}

.footer-col li + li {
  margin-top: 0.7rem;
}

.footer-col a {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  transition: color var(--dur) var(--ease);
}

.footer-col a:hover {
  color: var(--text);
}

/* Links de páginas que ainda não existem — ver comentários no HTML */
.footer-col a.is-placeholder:hover {
  color: var(--text-muted);
  cursor: not-allowed;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  padding-block: var(--s-5);
  border-top: 1px solid var(--border);
  font-size: var(--fs-xs);
  color: var(--text-subtle);
}