/* Login dedicado – estilo glass clean, branding Freitas & Caires */
:root{
  --bg: #0b1220;
  --grad1: rgba(46,163,255,.18);
  --grad2: rgba(16,185,129,.16);
  --glass: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.18);
  --text: #e6f2ff;
  --muted: #a8bfd6;
  --accent: #2ea3ff;
  --accent-2: #6cc2ff;
  --danger: #ff6b6f;
  --shadow: 0 22px 60px rgba(0,0,0,.45);
}

*{box-sizing:border-box} html,body{height:100%}
body{
  margin:0;
  background:
    radial-gradient(1200px 580px at 15% 10%, var(--grad1), transparent),
    radial-gradient(1000px 820px at 85% 90%, var(--grad2), transparent),
    var(--bg);
  color:var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
  display:grid; place-items:center; padding:2rem;
}

.auth{
  width:100%;
  max-width: 520px;
}

.card{
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 26px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  padding: 2rem;
}

.brand{
  display:flex; align-items:center; gap:1rem; margin-bottom:1.2rem;
}
.logo{
  width:64px; height:64px; border-radius:18px;
  display:grid; place-items:center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color:#071826; font-weight:900; font-size: 20px; letter-spacing:.5px;
  border:1px solid rgba(255,255,255,.22);
  box-shadow: 0 10px 30px rgba(46,163,255,.35);
}
.brand-text h1{
  margin:0; font-size: 26px; line-height:1.1;
}
.brand-text p{
  margin:.15rem 0 0; opacity:.8; font-size: 15px;
}

.alert{
  border-radius:14px; padding:.8rem 1rem; margin-bottom:1rem; font-weight:600;
  border:1px solid rgba(255,255,255,.2);
}
.alert.error{ background: rgba(255,107,111,.12); border-color: rgba(255,107,111,.35); color:#ffd9da }

.form{ display:grid; gap: .9rem; margin-top:.4rem }

.field{ display:grid; gap:.45rem }
.field span{ font-size: 14px; opacity:.85 }
.field input{
  width:100%;
  padding: .95rem 1rem;
  border-radius: 14px;
  border:1px solid var(--glass-border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  outline: none;
  font-size: 16px;
  transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
.field input::placeholder{ color: var(--muted) }
.field input:focus{
  border-color: rgba(46,163,255,.55);
  box-shadow: 0 0 0 4px rgba(46,163,255,.18);
  background: rgba(255,255,255,0.10);
}

/* Botão */
.btn{
  width:100%;
  padding: 1rem 1.1rem;
  border-radius: 14px;
  border: none;
  cursor: pointer;
  font-weight: 800;
  font-size: 16px;
  letter-spacing:.2px;
  transition: transform .15s ease, filter .15s ease;
}
.btn.primary{
  color:#051622;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.btn:hover{ transform: translateY(-1px) }
.btn:active{ transform: translateY(0) scale(.98) }

/* Rodapé */
.foot{
  margin-top:1.1rem; display:flex; align-items:center; justify-content:center;
}
.muted{ color: var(--muted); font-size: 14px }

/* Responsivo fino */
@media (max-width: 480px){
  .card{ padding: 1.5rem }
  .logo{ width:56px; height:56px; font-size:18px }
  .brand-text h1{ font-size: 22px }
}