#login-screen {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--slate-950);
  /* celular deitado/tela baixa: o card nao cabe e precisa rolar (antes
     ficava cortado sem rolagem) */
  overflow-y: auto;
  padding: 24px 0;
}

/* glow radial sutil atras do card - da o ar "premium" sem exagerar */
#login-screen::before {
  content: "";
  /* fixed: decoracao nao entra na area de rolagem */
  position: fixed;
  top: 50%;
  left: 50%;
  width: 900px;
  height: 900px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, color-mix(in srgb, var(--emerald-500) 18%, transparent) 0%, transparent 65%);
  pointer-events: none;
}

#login-screen::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(color-mix(in srgb, var(--slate-100) 3%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--slate-100) 3%, transparent) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 900px 700px at 50% 50%, black 0%, transparent 75%);
  pointer-events: none;
}

.login-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 380px;
  /* margin auto centraliza e, se faltar altura, deixa rolar sem cortar o topo */
  margin: auto 16px;
  padding: 40px 36px;
  border-radius: 16px;
  border: 1px solid var(--slate-800);
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(16px);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.6);
  animation: login-card-in 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes login-card-in {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.login-card.shake {
  animation: login-shake 0.4s ease;
}

@keyframes login-shake {
  10%,
  90% {
    transform: translateX(-2px);
  }
  20%,
  80% {
    transform: translateX(4px);
  }
  30%,
  50%,
  70% {
    transform: translateX(-7px);
  }
  40%,
  60% {
    transform: translateX(7px);
  }
}

.login-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.login-emoji {
  font-size: 40px;
  line-height: 1;
  filter: drop-shadow(0 0 20px color-mix(in srgb, var(--emerald-500) 50%, transparent));
}

.login-brand h1 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--slate-100);
}

.login-subtitle {
  text-align: center;
  font-size: 14px;
  color: var(--slate-500);
  margin-bottom: 28px;
}

#login-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.login-field-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--slate-300);
  margin-bottom: 2px;
}

.password-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.password-wrap .field-icon {
  position: absolute;
  left: 12px;
  color: var(--slate-500);
  pointer-events: none;
}

.password-wrap input {
  width: 100%;
  padding: 11px 44px;
  border-radius: 8px;
  border: 1px solid var(--slate-700);
  background: var(--slate-950);
  color: var(--slate-100);
  /* 16px: abaixo disso o Safari do iPhone da zoom ao tocar no campo */
  font-size: 16px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.password-wrap input:focus {
  border-color: var(--emerald-500);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--emerald-500) 18%, transparent);
}

.toggle-pw-btn {
  position: absolute;
  right: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 36px;
  padding: 6px;
  border-radius: 6px;
  color: var(--slate-500);
}

.toggle-pw-btn:hover {
  color: var(--slate-300);
  background: var(--slate-800);
}

.login-error {
  font-size: 13px;
  color: var(--red-400);
  text-align: center;
  margin-top: 2px;
}

#login-submit {
  width: 100%;
  margin-top: 16px;
  padding: 11px;
  font-size: 15px;
  justify-content: center;
}

.toggle-pw-btn:focus-visible {
  outline: 2px solid var(--emerald-500);
  outline-offset: 1px;
}

/* telas bem estreitas: menos respiro lateral dentro do card */
@media (max-width: 359px) {
  .login-card {
    padding: 32px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .login-card,
  .login-card.shake {
    animation: none;
  }
}