:root { color-scheme: light; font-family: Inter, system-ui, -apple-system, Segoe UI, sans-serif; color: #16304a; background: #f3f7fa; }
* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; padding: clamp(18px, 5vw, 70px) 18px; }
.container { max-width: 620px; margin: auto; padding: clamp(22px, 5vw, 42px); border: 1px solid #d8e2e8; border-radius: 20px; background: #fff; box-shadow: 0 18px 55px #0d284515; }
.marca { font-size: 1.1rem; font-weight: 900; letter-spacing: .02em; }
.marca span { color: #687b88; font-size: .8rem; font-weight: 500; }
header { margin: 34px 0 26px; }
.eyebrow { margin: 0 0 9px; color: #007f73; font-size: .75rem; font-weight: 800; letter-spacing: .12em; }
h1 { margin: 0; font-size: clamp(1.8rem, 5vw, 2.5rem); line-height: 1.12; }
.intro { margin: 13px 0 0; color: #546a7a; line-height: 1.55; }
label { display: block; margin: 17px 0 8px; font-size: .89rem; font-weight: 700; }
.colunas { display: grid; grid-template-columns: 1.4fr 1fr; gap: 16px; }
select, input { width: 100%; height: 52px; padding: 0 13px; border: 1px solid #c8d6df; border-radius: 10px; background: white; color: #16304a; font: inherit; font-size: 1rem; }
select:focus-visible, input:focus-visible, button:focus-visible { outline: 2px solid #007f73; outline-offset: 2px; }
.campo-valor { display: flex; align-items: center; gap: 8px; padding-left: 13px; border: 1px solid #c8d6df; border-radius: 10px; }
.campo-valor:focus-within { outline: 2px solid #007f73; outline-offset: 2px; }
.campo-valor span { color: #546a7a; font-weight: 700; }
.campo-valor input { min-width: 0; border: 0; outline: 0; padding-left: 0; }
button { width: 100%; margin-top: 24px; padding: 15px 20px; border: 0; border-radius: 10px; background: #007f73; color: white; font: inherit; font-weight: 800; cursor: pointer; }
button:hover { background: #00675d; }
button:disabled { opacity: .55; cursor: wait; }
#erro { padding: 13px; border-radius: 8px; background: #fff0f0; color: #9d2929; }
#resultado { margin-top: 25px; }
.principal { display: grid; gap: 8px; padding: 24px; border-radius: 13px; background: #16304a; color: #fff; }
.principal strong { font-size: clamp(2rem, 6vw, 2.8rem); font-variant-numeric: tabular-nums; }
#plano { color: #b4e9dd; }
.liquido { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 10px; padding: 18px; border: 1px solid #d8e2e8; border-radius: 10px; }
.liquido strong { font-size: 1.2rem; font-variant-numeric: tabular-nums; }
.rodape { margin: 23px 0 0; color: #667c8b; font-size: .79rem; line-height: 1.5; }
@media (max-width: 510px) { .colunas { grid-template-columns: 1fr; gap: 0; } .liquido { align-items: flex-start; flex-direction: column; } }