@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #1B3A6B;
  --primary-light: #2952A3;
  --primary-dark: #112549;
  --accent: #3A8DDE;
  --accent-light: #5AA7F0;
  --success: #27AE60;
  --danger: #E74C3C;
  --warning: #F39C12;
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-400: #94A3B8;
  --gray-600: #475569;
  --gray-800: #1E293B;
  --white: #FFFFFF;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.12);
  --shadow-md: 0 4px 16px rgba(0,0,0,.14);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.18);
  --radius: 10px;
  --radius-lg: 16px;
  --transition: .2s ease;
}

body {
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

/* -- Card de login -- */
.login-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 420px;
  padding: 48px 40px 40px;
  animation: fadeUp .5s ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* -- Logo -- */
.logo-wrap {
  text-align: center;
  margin-bottom: 32px;
}
.logo-img {
  max-width: 240px;
  height: auto;
  display: block;
  margin: 0 auto;
}

/* -- Títulos de seção -- */
.section-title {
  font-size: 1rem; font-weight: 600; color: var(--gray-800);
  margin-bottom: 20px;
}

/* -- Grupos de formulário -- */
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; font-size: .8rem; font-weight: 500;
  color: var(--gray-600); margin-bottom: 6px;
}
.form-group input {
  width: 100%; padding: 11px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif; font-size: .9rem;
  color: var(--gray-800);
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--gray-50);
}
.form-group input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(58,141,222,.15);
  background: white;
}

/* -- Botões -- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 12px 20px;
  border: none; border-radius: var(--radius);
  font-family: 'Inter', sans-serif; font-size: .9rem; font-weight: 600;
  cursor: pointer; transition: all var(--transition);
  text-decoration: none; white-space: nowrap;
}
.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  box-shadow: 0 4px 12px rgba(27,58,107,.35);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(27,58,107,.45); }
.btn-primary:active { transform: translateY(0); }
.btn-link {
  background: none; color: var(--accent);
  font-size: .84rem; padding: 0;
  text-decoration: underline; cursor: pointer;
}
.btn-link:hover { color: var(--primary); }

/* -- Links e ajuda -- */
.form-footer {
  text-align: center; margin-top: 16px;
  font-size: .83rem; color: var(--gray-600);
}

/* -- Alert messages -- */
.alert {
  border-radius: var(--radius); padding: 12px 16px;
  font-size: .85rem; margin-bottom: 18px;
  display: none;
}
.alert.show { display: flex; align-items: center; gap: 8px; }
.alert-error { background: #FEE2E2; color: #B91C1C; border: 1px solid #FECACA; }
.alert-success { background: #D1FAE5; color: #065F46; border: 1px solid #A7F3D0; }

/* -- Spinner -- */
.spinner {
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* -- Views internas (login / forgot) -- */
.view { display: none; }
.view.active { display: block; }

/* -- Rodapé -- */
.login-footer {
  text-align: center;
  margin-top: 24px;
  font-size: .78rem;
  color: rgba(255,255,255,.6);
  letter-spacing: .3px;
}

.login-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

/* -- Responsive -- */
@media (max-width: 480px) {
  .login-card { padding: 36px 24px 28px; }
}