:root{
  --bg:#0b141a;
  --panel:#111b21;
  --text:#e9edef;
  --muted:#8696a0;
  --border:#233138;
  --accent:#00a884;
  --accent-ink:#04261c;
  --danger:#ff8a8a;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  font-family: system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background: var(--bg);
  color: var(--text);
  display:flex;
  align-items:center;
  justify-content:center;
  min-height: 100dvh;
  margin:0;
  padding: clamp(12px, 3vw, 24px);
}

.card{
  background: var(--panel);
  padding: clamp(18px, 3.5vw, 24px);
  border-radius: 12px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
}

.brand{
  display:flex;
  justify-content:center;
  align-items:center;
  margin-bottom: 12px;
}
.brand-logo{
  width: clamp(120px, 40vw, 180px);
  height: auto;
  object-fit: contain;
  image-rendering: -webkit-optimize-contrast;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 12px rgba(0,0,0,.25);
}

h1{ margin: 0 0 16px; font-size: clamp(18px, 2.8vw, 20px); text-align:center; }

label{
  display:block;
  font-size: 13px;
  margin: 10px 0 6px;
  color: var(--muted);
}

.input{
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0b141a;
  color: var(--text);
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}

.input:focus{
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,168,132,.2);
}

.button{
  margin-top: 16px;
  width: 100%;
  padding: 12px;
  background: var(--accent);
  border: 0;
  border-radius: 8px;
  color: var(--accent-ink);
  font-weight: 700;
  cursor: pointer;
}

.button:disabled{
  opacity:.7;
  cursor: not-allowed;
}

.err{ color: var(--danger); margin-top: 10px; min-height: 20px; }
.hint{ color: var(--muted); font-size:12px; margin-top: 12px; text-align:center; }

/* responsividade extra para telas muito pequenas */
@media (max-width: 360px){
  .card{ padding: 16px; border-radius: 10px; }
  .input{ padding: 11px; }
  .button{ padding: 11px; }
}

/* respeita notch / safe-areas no iOS/Android */
@supports (padding: max(0px)){
  body{
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
    padding-top: max(12px, env(safe-area-inset-top));
    padding-bottom: max(12px, env(safe-area-inset-bottom));
  }
}