:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --fundo: #071a16;
  --card: #102c25;
  --borda: #28594b;
  --texto: #f3fbf7;
  --suave: #a9c6bc;
  --destaque: #36d399;
  --destaque-hover: #5ee2b1;
  --erro: #ff8585;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at top, #143a30, var(--fundo) 55%); color: var(--texto); }
.login-layout { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(100%, 430px); padding: 32px; border: 1px solid var(--borda); border-radius: 24px; background: color-mix(in srgb, var(--card) 94%, transparent); box-shadow: 0 28px 70px #0008; }
.marca { position: relative; width: 64px; height: 64px; overflow: hidden; border-radius: 18px; }
.login-icon { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.login-icon-light { display: none; transform: scale(1.22); }
.login-icon-dark { transform: scale(1.34); }
:root[data-theme="light"] .login-icon-light { display: block; }
:root[data-theme="light"] .login-icon-dark { display: none; }
.produto { margin: 18px 0 4px; color: var(--destaque); font-weight: 700; }
h1 { margin: 0; font-size: clamp(1.8rem, 6vw, 2.35rem); }
.subtitulo { color: var(--suave); margin-bottom: 28px; }
.abas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-top: 24px; padding: 5px; border: 1px solid var(--borda); border-radius: 13px; background: #081f1a; }
.aba { min-height: 42px; border: 0; border-radius: 9px; background: transparent; color: var(--suave); font: inherit; font-weight: 700; cursor: pointer; }
.aba.ativa { background: var(--destaque); color: #062019; }
[hidden] { display: none !important; }
label { display: block; margin: 16px 0 7px; font-weight: 650; }
input { width: 100%; min-height: 48px; padding: 0 14px; border: 1px solid var(--borda); border-radius: 12px; background: #081f1a; color: var(--texto); font: inherit; outline: none; }
input:focus { border-color: var(--destaque); box-shadow: 0 0 0 3px #36d39925; }
.senha-campo { position: relative; }
.senha-campo input { padding-right: 82px; }
.senha-campo button { position: absolute; inset: 5px 5px 5px auto; border: 0; border-radius: 8px; background: transparent; color: var(--destaque); cursor: pointer; }
.opcional, .ajuda { color: var(--suave); font-size: .86rem; font-weight: 400; }
.ajuda { margin: 7px 0 0; }
.mensagem { min-height: 22px; margin: 14px 0 8px; color: var(--erro); }
.mensagem.sucesso { color: var(--destaque); }
.botao-principal { width: 100%; min-height: 50px; border: 0; border-radius: 12px; background: var(--destaque); color: #062019; font-family: inherit; font-size: 1rem; font-weight: 700; cursor: pointer; }
.botao-principal:hover { background: var(--destaque-hover); }
.botao-principal:disabled { cursor: wait; opacity: .65; }
.botao-secundario { width: 100%; min-height: 46px; margin-top: 16px; border: 1px solid var(--destaque); border-radius: 12px; background: transparent; color: var(--destaque); font: inherit; font-weight: 700; cursor: pointer; }
.botao-secundario:hover { background: #36d39916; }
.botao-secundario:disabled { cursor: wait; opacity: .65; }
.redefinicao { margin-top: 20px; padding-top: 4px; border-top: 1px solid var(--borda); }
.redefinicao .botao-principal { margin-top: 18px; }

@media (max-width: 480px) {
  .login-layout { padding: 14px; }
  .login-card { padding: 24px 20px; border-radius: 18px; }
  .abas { grid-template-columns: 1fr; }
}