:root {
  --bg: #F5F6F8;
  --folha: #FFFFFF;
  --tinta: #0E1726;
  --tinta-2: #46536A;
  --tinta-3: #5F6B80;
  --linha: #E3E6EB;
  --linha-2: #CDD2DA;
  --navy: #142B4D;
  --navy-forte: #0C1D36;
  --navy-claro: #E8EDF5;
  --ouro: #C6A96B;
  --ok: #15803D;       --ok-fundo: #ECFBF1;   --ok-linha: #B7E7C7;
  --aviso: #8A5A00;    --aviso-fundo: #FFF8E6; --aviso-linha: #EED9A6;
  --erro: #B42318;     --erro-fundo: #FEF3F2;  --erro-linha: #F6C9C4;
  --info: #1D4ED8;     --info-fundo: #EFF4FF;  --info-linha: #C7D7FE;
  --r-1: 6px; --r-2: 8px; --r-3: 12px; --r-4: 16px;
  --sombra-1: 0 1px 2px rgb(16 24 40 / 0.05);
  --sombra-2: 0 1px 2px rgb(16 24 40 / 0.04), 0 2px 6px -1px rgb(16 24 40 / 0.07);
  --sombra-3: 0 4px 8px -2px rgb(16 24 40 / 0.08), 0 16px 32px -8px rgb(16 24 40 / 0.16);
  --foco: 0 0 0 3px rgb(20 43 77 / 0.22);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t-rapido: 150ms; --t-medio: 250ms; --t-lento: 400ms;
  --fonte: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --fonte-marca: "Merriweather", Georgia, serif;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--tinta);
  font: 400 15px/1.5 var(--fonte); font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3 { margin: 0; text-wrap: balance; font-weight: 600; letter-spacing: -0.012em; }
p { margin: 0; text-wrap: pretty; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }
::selection { background: rgb(20 43 77 / 0.16); }
:focus-visible { outline: none; box-shadow: var(--foco); }
a { color: var(--navy); text-underline-offset: 3px; text-decoration-thickness: 1px; }
.num { font-variant-numeric: tabular-nums; }
.ic { width: 18px; height: 18px; flex: none; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Marca: o nome do professor em Merriweather, com o fio dourado. */
.marca { display: inline-flex; flex-direction: column; gap: 2px; text-decoration: none; color: var(--navy); }
.marca b { font: italic 600 17px/1.15 var(--fonte-marca); letter-spacing: -0.005em; }
.marca span { font-size: 12px; font-weight: 500; color: var(--tinta-3); display: flex; align-items: center; gap: 8px; }
.marca span::before { content: ""; width: 14px; height: 2px; border-radius: 2px; background: var(--ouro); }

/* Botões */
.btn {
  --h: 40px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: var(--h); padding: 0 16px; border-radius: var(--r-2);
  border: 1px solid transparent; font-weight: 550; font-size: 14px; white-space: nowrap;
  transition-property: background-color, border-color, color, box-shadow, scale; transition-duration: var(--t-rapido); transition-timing-function: var(--ease);
  touch-action: manipulation; user-select: none;
}
.btn:active:not(:disabled) { scale: 0.97; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn .ic { width: 16px; height: 16px; }
.btn-primario { background: var(--navy); color: #fff; box-shadow: var(--sombra-1), inset 0 1px 0 rgb(255 255 255 / 0.08); }
.btn-primario:hover:not(:disabled) { background: var(--navy-forte); }
.btn-sec { background: var(--folha); border-color: var(--linha-2); color: var(--tinta); box-shadow: var(--sombra-1); }
.btn-sec:hover:not(:disabled) { background: #F9FAFB; border-color: #B9C0CB; }
.btn-fantasma { background: transparent; color: var(--tinta-2); }
.btn-fantasma:hover:not(:disabled) { background: rgb(16 24 40 / 0.05); color: var(--tinta); }
.btn-perigo { background: var(--folha); border-color: var(--erro-linha); color: var(--erro); }
.btn-perigo:hover:not(:disabled) { background: var(--erro-fundo); }
.btn-g { --h: 48px; font-size: 15px; padding: 0 20px; border-radius: 10px; }
.btn-p { --h: 32px; padding: 0 10px; font-size: 13px; border-radius: var(--r-1); }

/* Campos */
.campo { display: grid; gap: 6px; }
.campo label, .campo .rotulo { font-size: 14px; font-weight: 550; color: var(--tinta); }
.campo .dica { font-size: 13px; color: var(--tinta-3); }
.campo .falha { font-size: 13px; color: var(--erro); display: flex; gap: 6px; align-items: flex-start; }
.campo .falha .ic { width: 15px; height: 15px; margin-top: 2px; }
.entrada {
  width: 100%; height: 44px; padding: 0 12px; border-radius: var(--r-2);
  background: var(--folha); border: 1px solid var(--linha-2); box-shadow: var(--sombra-1);
  font-size: 16px; caret-color: var(--navy);
  transition-property: border-color, box-shadow; transition-duration: var(--t-rapido);
}
.entrada::placeholder { color: #6B7588; }
.entrada:hover { border-color: #B9C0CB; }
.entrada:focus { outline: none; border-color: var(--navy); box-shadow: var(--foco); }
.entrada[aria-invalid="true"] { border-color: var(--erro); }
.entrada[aria-invalid="true"]:focus { box-shadow: 0 0 0 3px rgb(180 35 24 / 0.18); }
select.entrada { appearance: none; padding-right: 36px; background: var(--folha) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%235F6B80' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m4 6 4 4 4-4'/%3E%3C/svg%3E") no-repeat right 12px center; }

/* Escolha em segmento (sexo) */
.segmento { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 4px; padding: 4px; background: #EBEDF1; border-radius: 10px; }
.segmento input { position: absolute; opacity: 0; pointer-events: none; }
.segmento label { height: 38px; display: grid; place-items: center; border-radius: var(--r-2); font-size: 14px; font-weight: 550; color: var(--tinta-2); cursor: pointer; transition: background-color var(--t-rapido), color var(--t-rapido), box-shadow var(--t-rapido); }
.segmento input:checked + label { background: var(--folha); color: var(--tinta); box-shadow: var(--sombra-2); }
.segmento input:focus-visible + label { box-shadow: var(--foco); }

.caixa { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--tinta-2); cursor: pointer; }
.caixa input { width: 18px; height: 18px; margin: 1px 0 0; accent-color: var(--navy); flex: none; }

/* Estado: sempre ícone + palavra, nunca só cor. */
.selo { display: inline-flex; align-items: center; gap: 6px; height: 24px; padding: 0 9px 0 7px; border-radius: 999px; font-size: 12.5px; font-weight: 600; white-space: nowrap; border: 1px solid; }
.selo .ic { width: 14px; height: 14px; }
.selo.ok { color: var(--ok); background: var(--ok-fundo); border-color: var(--ok-linha); }
.selo.pendente { color: var(--aviso); background: var(--aviso-fundo); border-color: var(--aviso-linha); }
.selo.erro { color: var(--erro); background: var(--erro-fundo); border-color: var(--erro-linha); }
.selo.info { color: var(--info); background: var(--info-fundo); border-color: var(--info-linha); }
.selo.neutro { color: var(--tinta-2); background: #F1F3F6; border-color: var(--linha); }

.girar { animation: girar 0.9s linear infinite; }
@keyframes girar { to { rotate: 360deg; } }

/* Texto vivo enquanto a IA lê: pulso de opacidade em cor sólida. */
.brilho { color: var(--tinta-2); animation: pulso 1.6s ease-in-out infinite; }
@keyframes pulso { 50% { opacity: 0.45; } }

/* Aviso flutuante */
.toast-area { position: fixed; left: 50%; bottom: 24px; translate: -50% 0; z-index: 100; display: grid; gap: 8px; pointer-events: none; width: min(420px, calc(100vw - 32px)); }
.toast { pointer-events: auto; display: flex; gap: 10px; align-items: center; padding: 12px 14px; border-radius: var(--r-3); background: var(--tinta); color: #fff; font-size: 14px; box-shadow: var(--sombra-3); animation: toast-in var(--t-lento) var(--ease); }
.toast.saindo { animation: toast-out var(--t-medio) var(--ease) forwards; }
.toast .ic { width: 16px; height: 16px; }
@keyframes toast-in { from { opacity: 0; translate: 0 12px; filter: blur(2px); } }
@keyframes toast-out { to { opacity: 0; translate: 0 6px; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}