/* =====================
   Reset + Fontes
===================== */

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

/* Fontes da identidade (comerciais). Coloque os arquivos em /fonts.
   Enquanto não estiverem presentes, o site usa Inter/Poppins como fallback. */
@font-face {
    font-family: 'Circular Std';
    src: url('../fonts/CircularStd-Medium.woff') format('woff');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Circular Std', 'Inter', sans-serif;
}

body {
    font-family: 'Circular Std', 'Inter', sans-serif;
    min-height: 100dvh;
    background: #C7DDF1;
    color: #283A5B;
    padding: 40px 20px;
}

.btn-voltar {
    position: fixed;
    top: 16px;
    left: 16px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #EDDAA7;
    color: #643A24;
    font-size: 1.5rem;
    line-height: 1;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(100, 58, 36, 0.25);
    transition: background 0.2s ease, box-shadow 0.2s ease;
    z-index: 100;
}

.btn-voltar:hover {
    background: #E0C989;
    box-shadow: 0 6px 16px rgba(100, 58, 36, 0.32);
}

/* =====================
   Título
===================== */
h1 {
    text-align: center;
    margin-bottom: 32px;
    font-size: 2rem;
    font-family: 'Circular Std', 'Inter', sans-serif;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: #283A5B;
}

.subtitulo {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 28px auto;
    color: #3E5C7A;
    font-size: 0.97rem;
}

/* =====================
   Formulário — creme, rótulos azul marinho
===================== */
.formulario {
    max-width: 420px;
    margin: 0 auto 24px auto;
    background: #FBF7E4;
    border-radius: 16px;
    padding: 28px 24px;
    box-shadow: 0 10px 26px rgba(40, 58, 91, 0.2);
    border: 1px solid #E4D9BC;
    border-top: 4px solid #283A5B;
}

.formulario label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #283A5B;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

input[type="number"],
input[type="date"] {
    display: block;
    width: 100%;
    margin-bottom: 20px;
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid #A3C6E4;
    background: #FFFFFF;
    color: #283A5B;
    font-size: 1rem;
}

input[type="number"]:focus,
input[type="date"]:focus {
    outline: none;
    border-color: #EDDAA7;
    box-shadow: 0 0 0 3px rgba(237, 218, 167, 0.5);
}

.ajuda {
    margin: -8px 0 20px 0;
    font-size: 0.82rem;
    color: #8A6244;
    line-height: 1.4;
}

/* =====================
   Botão — dourado/marrom
===================== */
button {
    display: block;
    width: 100%;
    margin: 8px 0 0 0;
    padding: 12px 30px;
    border-radius: 12px;
    border: none;
    background: #EDDAA7;
    color: #643A24;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

button:hover {
    background: #E0C989;
    transform: translateY(-2px);
    box-shadow: 0 8px 18px rgba(100, 58, 36, 0.28);
}

button:active {
    transform: translateY(0);
    box-shadow: 0 4px 10px rgba(100, 58, 36, 0.22);
}

/* =====================
   Resultado — azul marinho + valor dourado (contraste máximo)
===================== */
.resultado {
    max-width: 420px;
    margin: 0 auto;
    background: #283A5B;
    border-radius: 16px;
    padding: 28px 24px;
    text-align: center;
    box-shadow: 0 12px 28px rgba(40, 58, 91, 0.35);
    border: 1px solid #1F2E48;
    border-top: 4px solid #EDDAA7;
}

.resultado-escondido {
    display: none;
}

.resultado-visivel {
    display: block;
    animation: surgir 0.35s ease;
}

@keyframes surgir {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.resultado-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: #A3C6E4;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 10px;
}

.resultado-valor {
    font-family: 'Circular Std', 'Inter', sans-serif;
    font-size: 2.2rem;
    font-weight: 700;
    color: #EDDAA7;
    margin-bottom: 8px;
}

.resultado-detalhe {
    font-size: 0.92rem;
    color: #C7DDF1;
    line-height: 1.4;
}

/* =====================
   Mensagem
===================== */
.mensagem {
    text-align: center;
    max-width: 420px;
    margin: 0 auto 24px auto;
    font-size: 0.95rem;
    color: #B0483A;
    display: none;
}

/* =====================
   Mobile
===================== */
@media (max-width: 600px) {
    h1 {
        font-size: 1.7rem;
    }

    .resultado-valor {
        font-size: 1.7rem;
    }
}