/*
  PORQUE EXISTE: experiência mobile real — altura com teclado (--vh),
  nav que some ao digitar, chrome compacto, toques grandes e safe-areas.
  Desktop quase não é afetado (tudo dentro do @media).
*/

.tela-login {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  padding: max(16px, env(safe-area-inset-top)) 16px max(16px, env(safe-area-inset-bottom));
  background:
    radial-gradient(700px 400px at 50% 20%, rgba(79, 209, 197, 0.12), transparent 60%),
    var(--fundo-app);
}
.login-caixa {
  display: flex; flex-direction: column; gap: 14px;
  width: min(360px, 92vw);
  padding: 28px 22px;
  background: color-mix(in srgb, var(--fundo-caixa) 92%, transparent);
  border: 1px solid var(--borda-forte);
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(12px);
}
.login-logo img {
  border-radius: 14px;
  box-shadow: 0 4px 16px rgba(79, 209, 197, 0.2);
}
.login-caixa h1 {
  font-family: var(--fonte-marca);
  font-size: 22px; font-weight: 800; letter-spacing: -0.03em;
}
.login-caixa p { font-size: 13px; color: var(--texto-fraco); margin-top: -4px; }
.login-caixa .login-hint { font-size: 11px; opacity: 0.75; margin: 0; }
.login-caixa input {
  padding: 14px 14px;
  background: var(--fundo-editor);
  border: 1px solid var(--borda); border-radius: var(--raio);
  color: var(--texto); font-size: 16px; outline: none;
  transition: border-color 140ms ease;
}
.login-caixa input:focus {
  border-color: color-mix(in srgb, var(--destaque) 55%, transparent);
}
.login-caixa .btn-primario {
  padding: 14px; font-size: 15px; width: 100%;
  min-height: 48px;
}
.login-erro { color: var(--erro, #e06c6c); font-size: 12px; min-height: 16px; }

.nav-mobile { display: none; }

@media (max-width: 820px) {
  /* 1 coluna full-bleed — ocupa TODO o visualViewport */
  html.modo-mobile,
  body.modo-mobile {
    width: 100%;
    height: 100%;
    overflow: hidden;
  }

  .ide {
    display: grid !important;
    grid-template-columns: 1fr !important;
    grid-template-rows: minmax(0, 1fr) auto !important;
    width: 100% !important;
    max-width: 100% !important;
    height: 100% !important;
    max-height: 100% !important;
    min-height: 0 !important;
    overflow: hidden !important;
    zoom: 1 !important;
    translate: none !important;
    transform: none !important;
    box-sizing: border-box !important;
  }

  .sidebar, .editor, .painel-chat {
    grid-column: 1 / -1 !important;
    grid-row: 1 !important;
    display: none;
    flex-direction: column;
    border: none;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    min-height: 0 !important;
    height: 100% !important;
    max-height: 100% !important;
    overflow: hidden;
    backdrop-filter: none;
    overscroll-behavior: contain;
    box-sizing: border-box;
  }
  body.aba-ficheiros .sidebar { display: flex; }
  body.aba-editor .editor { display: flex; }
  body.aba-chat .painel-chat { display: flex; }
  /* Sem classe aba-* (race no boot): assume chat */
  body:not(.aba-ficheiros):not(.aba-editor):not(.aba-chat) .painel-chat {
    display: flex;
  }

  .sidebar-atividades, .sidebar-rodape { display: none; }

  .painel-chat .status-chat {
    display: block !important;
    padding: max(6px, env(safe-area-inset-top, 0px)) 14px 6px;
    font-size: 11px;
    border-bottom: 1px solid var(--borda);
    color: var(--texto-fraco);
  }
  .painel-chat .status-chat.ok { color: var(--ok); }
  .painel-chat .status-chat.aviso { color: var(--aviso); }

  .seletor-janela {
    gap: 6px;
  }
  .seletor-janela select {
    font-size: 13px;
    padding: 10px 12px;
    min-height: 44px;
    border-radius: 12px;
    -webkit-appearance: none;
    appearance: none;
  }
  .seletor-janela .btn-icone {
    width: 44px; height: 44px;
    flex-shrink: 0;
  }

  .chat-abas {
    padding: 8px 12px;
    gap: 8px;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
  }
  .aba-agente {
    padding: 10px 14px;
    min-height: 40px;
    scroll-snap-align: start;
    font-size: 13px;
    -webkit-tap-highlight-color: transparent;
  }

  .chat-conversa,
  #conversa {
    flex: 1 1 0 !important;
    min-height: 0 !important;
    height: auto !important;
    max-height: none !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    padding: 12px 14px 16px;
    gap: 12px;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
    touch-action: pan-y;
  }
  .sidebar .arvore,
  .editor .editor-corpo {
    flex: 1 1 0;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
  }
  .msg-usuario {
    max-width: 94%;
    font-size: 15px;
    padding: 12px 14px;
  }
  .msg-agente {
    font-size: 15px;
    line-height: 1.55;
    max-width: 100%;
  }

  /* Prompt: acima da nav, sem double safe-area */
  .caixa-prompt {
    margin: 0 10px 8px;
    padding: 12px;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    flex-shrink: 0;
  }
  .caixa-prompt textarea {
    font-size: 16px; /* evita zoom iOS */
    min-height: 28px;
    max-height: 120px;
  }

  /* Menus modo/modelo: cabem no ecrã */
  .painel-chat .menu-modo {
    max-height: min(50vh, 280px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .nav-mobile {
    grid-column: 1; grid-row: 2;
    display: flex;
    flex-shrink: 0;
    z-index: 20;
    border-top: 1px solid var(--borda);
    background: color-mix(in srgb, var(--fundo-painel) 96%, #000);
    padding-bottom: max(6px, env(safe-area-inset-bottom, 0));
    backdrop-filter: blur(14px);
    transition: transform 180ms ease, opacity 180ms ease;
  }
  .nav-mobile button {
    flex: 1;
    display: flex; flex-direction: column; align-items: center; gap: 4px;
    padding: 10px 0 10px;
    min-height: 52px;
    background: transparent; border: none; cursor: pointer;
    color: var(--texto-fraco); font-size: 11px; font-weight: 600;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }
  .nav-mobile button.ativo { color: var(--destaque); }
  .nav-mobile svg { width: 22px; height: 22px; }

  /* Teclado aberto: mais espaço para o prompt */
  body.teclado-aberto .nav-mobile {
    display: none;
  }
  body.teclado-aberto .ide {
    grid-template-rows: 1fr;
  }
  body.teclado-aberto .status-chat,
  body.teclado-aberto .chat-abas,
  body.teclado-aberto .chat-rodape {
    display: none !important;
  }
  body.teclado-aberto .caixa-prompt {
    margin: 0 8px 8px;
    border-radius: 14px;
  }
  body.teclado-aberto .pwa-instalar {
    display: none;
  }

  .sidebar-cabecalho {
    padding-top: max(12px, env(safe-area-inset-top, 0));
  }
  .no {
    padding-top: 11px;
    padding-bottom: 11px;
    min-height: 44px;
  }
  .editor-abas, .editor-migalha {
    padding-left: 12px;
    padding-right: 12px;
  }
  body.aba-editor .editor-corpo {
    padding-bottom: 8px;
  }

  /* Banner instalar acima da nav */
  .pwa-instalar {
    bottom: calc(60px + env(safe-area-inset-bottom, 0));
  }
  body.pwa-standalone .ide {
    padding-top: 0; /* safe-area já no chat-topo / sidebar */
  }
  body.pwa-standalone .caixa-prompt {
    margin-bottom: 8px;
  }
}

/* Ecrãs muito estreitos */
@media (max-width: 380px) {
  .marca-tag { display: none; }
}