/* =========================================================
   style_index/style.css  —  ContabWeb PRO (login/registro)
   Acessibilidade, foco visível, contraste, responsividade,
   estados de erro/sucesso e preferências do usuário.
   ========================================================= */

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

/* ---------- Variáveis de tema ---------- */
:root{
  --bg: #f6f5f7;
  --panel: #e3f2fd;          /* azul claro */
  --text: #333;
  --muted: #555;
  --primary1: #2196f3;
  --primary2: #42a5f5;
  --primaryDark: #1565c0;
  --ring: rgba(33,150,243,.35);
  --ok: #1b5e20;
  --err: #c62828;
  --warning: #ef6c00;
  --shadow1: 0 14px 28px rgba(0,0,0,0.15), 0 10px 10px rgba(0,0,0,0.1);
  --radius: 10px;
}

/* ---------- Base ---------- */
html, body { height: 100%; }
body {
  font-family: "Roboto", system-ui, -apple-system, Segoe UI, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1.4;
}

/* Títulos e parágrafos */
h1, p { margin: 0 0 20px; font-weight: 500; color: var(--text); text-align: center; text-shadow: 1px 1px 2px rgba(0,0,0,.08); }
h1 { font-size: 2.2rem; font-weight: 700; color: var(--primaryDark); }

/* ---------- Container principal ---------- */
.container{
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow1);
  position: relative;
  overflow: hidden;
  width: 768px;
  max-width: 100%;
  min-height: 480px;
  isolation: isolate; /* melhora a sobreposição do overlay */
}

/* ---------- Formulários (layout deslizante) ---------- */
.form-container{
  position: absolute;
  inset: 0 auto 0 0; /* top/right/bottom/left */
  height: 100%;
  transition: transform .6s ease-in-out, opacity .6s ease-in-out;
  display: grid;
  place-items: center;
  padding: 28px 34px;
}
.sign-in-container{ width: 50%; z-index: 2; }
.sign-up-container{ width: 50%; opacity: 0; z-index: 1; }

.container.sign-up-mode .sign-in-container{ transform: translateX(100%); opacity: 0; }
.container.sign-up-mode .sign-up-container{ transform: translateX(100%); opacity: 1; z-index: 5; }

/* ---------- Form elements ---------- */
form { width: 100%; max-width: 320px; }

.input-field{ position: relative; margin: 10px 0; }
.input-field i{
  position: absolute; top: 50%; left: 15px; transform: translateY(-50%);
  color: var(--muted);
}
.input-field input{
  width: 100%;
  padding: 12px 15px 12px 45px;
  border: 1px solid #bbb;
  border-radius: 25px;
  outline: none;
  font-size: 15px;
  background: #fff;
  color: var(--text);
  transition: border-color .2s ease, box-shadow .2s ease, background-color .2s;
  text-align: center; /* pedido pelo usuário */
}
.input-field input::placeholder{ color: #777; text-align: center; }

/* Foco visível e validações básicas */
.input-field input:focus{
  border-color: var(--primary1);
  box-shadow: 0 0 0 4px var(--ring);
}
.input-field input[aria-invalid="true"],
.input-field input.is-invalid{
  border-color: var(--err);
  box-shadow: 0 0 0 4px rgba(198,40,40,.18);
}
.input-field input.is-valid{
  border-color: var(--ok);
  box-shadow: 0 0 0 4px rgba(27,94,32,.18);
}

/* Autofill (WebKit) */
input:-webkit-autofill{
  -webkit-box-shadow: 0 0 0 30px #fff inset !important;
  -webkit-text-fill-color: var(--text) !important;
  caret-color: var(--text);
}

/* ---------- Botões ---------- */
.btn{
  display: block;
  margin: 20px auto;
  border-radius: 25px;
  border: none;
  background: linear-gradient(to right, var(--primary1), var(--primary2));
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 45px;
  letter-spacing: 1.2px;
  cursor: pointer;
  transition: transform .15s ease, filter .2s ease, background .3s ease;
  text-shadow: 0 1px 1px rgba(0,0,0,.2);
}
.btn:hover{ filter: brightness(1.05); }
.btn:active{ transform: scale(.97); }
.btn:disabled{ opacity: .6; cursor: not-allowed; }

/* Ghost buttons (nos painéis) */
button.ghost{
  background: transparent;
  border: 2px solid #fff;
  color: #fff;
  margin-top: 10px;
  border-radius: 25px;
  padding: 8px 18px;
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease;
}
button.ghost:hover{ background: rgba(255,255,255,.15); }
button.ghost:focus-visible{ outline: none; box-shadow: 0 0 0 3px rgba(255,255,255,.45); }

/* Troca login/registro */
.switch{ font-size: 14px; color: var(--muted); text-align: center; margin-top: 10px; }
.switch .ghost{
  border: none; color: var(--primary1); background: transparent; padding: 0 6px;
}
.switch .ghost:hover{ color: var(--primary2); }

/* ---------- Overlay ---------- */
.overlay-container{
  position: absolute; top: 0; left: 50%;
  width: 50%; height: 100%;
  overflow: hidden;
  transition: transform .6s ease-in-out;
  z-index: 100;
}
.container.sign-up-mode .overlay-container{ transform: translateX(-100%); }

.overlay{
  background: linear-gradient(to right, var(--primary2), var(--primary1));
  color: #fff;
  position: relative; left: -100%;
  height: 100%; width: 200%;
  transform: translateX(0);
  transition: transform .6s ease-in-out;
}
.container.sign-up-mode .overlay{ transform: translateX(50%); }

.overlay-panel{
  position: absolute; top: 0;
  height: 100%; width: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 0 40px; text-align: center;
  transition: transform .6s ease-in-out, opacity .3s;
}
.overlay-left{ transform: translateX(-20%); }
.container.sign-up-mode .overlay-left{ transform: translateX(0); }
.overlay-right{ right: 0; transform: translateX(0); }
.container.sign-up-mode .overlay-right{ transform: translateX(20%); }

/* ---------- Mensagens (erro/sucesso) ---------- */
.msg, #msgErro{
  margin: 10px auto 0;
  max-width: 320px;
  font-size: 14px;
  line-height: 1.35;
  padding: 8px 10px;
  border-radius: 10px;
  text-align: center;
}
.msg--ok{ background: #e8f5e9; color: var(--ok); border: 1px solid rgba(27,94,32,.25); }
.msg--err, #msgErro{ background: #ffebee; color: var(--err); border: 1px solid rgba(198,40,40,.25); }
.msg--warn{ background: #fff3e0; color: var(--warning); border: 1px solid rgba(239,108,0,.25); }

/* Loader no botão (classe utilitária) */
.is-loading{ pointer-events: none; position: relative; opacity: .85; }
.is-loading::after{
  content: ""; width: 18px; height: 18px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.7); border-top-color: transparent;
  position: absolute; inset: 0; margin: auto; animation: spin .8s linear infinite;
}
@keyframes spin{ to { transform: rotate(360deg); } }

/* ---------- Responsividade ---------- */
@media (max-width: 900px){
  .container{ width: min(96vw, 768px); }
}
@media (max-width: 768px){
  .overlay-container{ display: none; }
  .sign-in-container, .sign-up-container{
    width: 100%; left: 0 !important; opacity: 1; transform: none;
  }
  form{ max-width: 360px; }
}

/* ---------- Preferências do usuário ---------- */
@media (prefers-reduced-motion: reduce){
  .form-container,
  .overlay-container,
  .overlay,
  .overlay-panel{
    transition: none !important;
  }
  .btn{ transition: none !important; }
}

/* ---------- Acessibilidade util ---------- */
.sr-only{
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  border: 0;
}


/* Esconde a área de mensagem quando estiver vazia */
#msgErro:empty {
  display: none;
}

/* (opcional) estilo quando houver mensagem de erro */
#msgErro {
  margin: 10px auto 0;
  max-width: 320px;
  padding: 8px 10px;
  border-radius: 10px;
  background: #ffebee;
  border: 1px solid rgba(198,40,40,.25);
  color: #c62828;
  text-align: center;
}

/* (opcional) neutraliza contorno vermelho nativo de inputs “required” */
input:invalid,
input:-moz-ui-invalid {
  box-shadow: none !important;
  outline: none !important;
}

.login-subtitle{
  margin: 6px 0 16px;
  font-size: 14px;
  opacity: .85;
}

/* ====== Texto acima do 'Entrar' ====== */
.welcome-top{
  margin: 0 0 10px 0;
  font-weight: 600;
  letter-spacing: .2px;
  opacity: .9;
}