/* Base */
* { box-sizing: border-box; }
:root {
  --bg-deep: #061a33;          /* azul muito escuro */
  --card-bg: #ffffff;
  --text-1: #0b1220;
  --muted: #6b7280;
  --brand: #1673ff;            /* botão/realce */
  --brand-hover: #0f5bcd;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(0,0,0,.15);
  --space: clamp(16px, 2vw, 24px);
  --field-h: 44px;
  --logo-h: clamp(100px, 12vw, 160px);
}

/* Página com imagem de fundo + overlay */
body.auth-bg {
  margin: 0;
  min-height: 100vh;
  font-family: 'Segoe UI', system-ui, -apple-system, Roboto, Arial, sans-serif;
  color: var(--text-1);
  display: grid;
  place-items: center;
  background-color: var(--bg-deep);
  background-image:
    linear-gradient(to bottom, rgba(6,26,51,.85), rgba(6,26,51,.65)),
    url("/img/background_login.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Layout vertical: logo em cima, cartão abaixo */
.page {
  width: min(1100px, 92vw);
  margin-inline: auto;
  display: grid;
  gap: clamp(16px, 3vw, 28px);
  justify-items: center;
}

/* Logótipo */
.brand-wrap { display: grid; place-items: center; }
.brand { height: var(--logo-h); width: auto; user-select: none; max-width: 90vw; }

/* Cartão */
.container.login-container.auth-card {
  width: min(540px, 92vw);
  background: var(--card-bg);
  padding: clamp(20px, 4vw, 32px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}


.auth-form { display: grid; gap: var(--space); }
.form-group { display: grid; gap: 8px; }
label {
  font-weight: 600;
  color: #1f2937;
}

.container.login-container.auth-card {
  padding-bottom: clamp(8px, 1.2vw, 14px);
}
.auth-form {
  gap: clamp(8px, 1.2vw, 12px);  
}

#msg { margin-top: 0px; min-height: 0.9em; }
.back-link { 
  margin-top: 0px; 
  font-size: clamp(15px, 1.3vw, 18px);
  font-weight: 700;
  letter-spacing: 0.01em; 
  display: block;
  text-align: center;
  text-decoration: none;
  color: var(--muted);
}   

input {
  height: var(--field-h);
  padding: 10px 12px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  font-size: 15px;
  outline: none;
  transition: box-shadow .2s, border-color .2s;
  background: #fff;
}
input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(22,115,255,.15);
}

/* Botão */
.btn-primary {
  height: 46px;
  border: 0;
  border-radius: 10px;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  transition: background .2s, transform .02s;
}
.btn-primary:hover { background: var(--brand-hover); }
.btn-primary:active { transform: translateY(1px); }

.back-link:hover { text-decoration: underline; }

/* Responsivo: aperta o cartão e mantém o logo confortável */
@media (min-width: 768px) {
  .container.login-container.auth-card { padding: 36px 34px; }
}