/* ================================================================
   PERSONALIZAÇÃO RÁPIDA
   Altere as variáveis abaixo para mudar cores, fontes e dimensões.
   ================================================================ */
:root {
  --cor-principal: #10233f;
  --cor-secundaria: #1d4f7c;
  --cor-destaque: #f4b740;
  --cor-destaque-hover: #ffc552;
  --cor-destaque-escura: #b97800;
  --cor-texto-suave: #637083;
  --cor-borda: #dce3eb;
  --cor-fundo: #edf1f5;
  --cor-cartao: #ffffff;
  --cor-erro: #a83232;
  --cor-sucesso: #31a668;
  --fonte-principal: "Segoe UI";
  --fonte-titulos: "Segoe UI";
  --tamanho-texto: 16px;
  --raio-cartao: 22px;
  --raio-campo: 9px;
  --sombra-cartao: 0 24px 70px rgba(20, 38, 64, 0.14);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(150deg, #e7edf3 0%, #f8fafc 50%, #e9eef4 100%);
  color: var(--cor-principal);
  font: var(--tamanho-texto)/1.45 var(--fonte-principal);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: linear-gradient(90deg, transparent 49.8%, rgba(16, 35, 63, 0.03) 50%, transparent 50.2%);
  background-size: 52px 52px;
  pointer-events: none;
}

.shell { width: min(1120px, calc(100% - 32px)); margin: 32px auto; position: relative; }
header { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin: 0 4px 20px; }
.eyebrow { font-size: 0.78rem; font-weight: 800; letter-spacing: 0.18em; text-transform: uppercase; color: var(--cor-destaque-escura); margin: 0 0 5px; }
h1 { font-family: var(--fonte-titulos); font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1; margin: 0; letter-spacing: -0.035em; }
.status { display: flex; align-items: center; gap: 9px; color: var(--cor-texto-suave); font-size: 0.9rem; }
.status i { width: 9px; height: 9px; border-radius: 50%; background: var(--cor-sucesso); box-shadow: 0 0 0 5px rgba(49, 166, 104, 0.12); }

.workspace { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(330px, 0.65fr); background: var(--cor-cartao); border: 1px solid rgba(16, 35, 63, 0.08); border-radius: var(--raio-cartao); overflow: hidden; box-shadow: var(--sombra-cartao); }
.inputs { padding: 30px; border-right: 1px solid var(--cor-borda); }
.results { padding: 30px; background: var(--cor-principal); color: #fff; display: flex; flex-direction: column; }
.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
h2 { font-size: 0.86rem; text-transform: uppercase; letter-spacing: 0.14em; margin: 0; color: var(--cor-secundaria); }
.results h2 { color: #aebdd0; }
.hint { font-size: 0.82rem; color: var(--cor-texto-suave); }
.group { border: 0; padding: 0; margin: 0 0 24px; }
.group:last-of-type { margin-bottom: 18px; }
legend { font-weight: 750; margin-bottom: 12px; padding: 0; color: var(--cor-principal); }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }

label { display: block; font-size: 0.82rem; font-weight: 700; color: #526174; margin-bottom: 6px; }
.field { position: relative; }
.unit { position: absolute; right: 13px; bottom: 12px; color: #8290a1; font-size: 0.84rem; pointer-events: none; }
input { width: 100%; height: 46px; border: 1px solid #cfd8e3; border-radius: var(--raio-campo); background: #f9fbfd; padding: 0 43px 0 13px; font: 600 1rem/1 var(--fonte-principal); color: var(--cor-principal); outline: none; transition: 0.18s; }
input:focus { border-color: var(--cor-secundaria); box-shadow: 0 0 0 3px rgba(29, 79, 124, 0.12); background: #fff; }
input[aria-invalid="true"] { border-color: var(--cor-erro); box-shadow: 0 0 0 3px rgba(168, 50, 50, 0.1); }

.actions { display: flex; gap: 12px; align-items: center; }
.calculate { border: 0; border-radius: var(--raio-campo); background: var(--cor-destaque); color: #402b00; height: 48px; padding: 0 28px; font-weight: 800; font-size: 0.96rem; cursor: pointer; box-shadow: 0 8px 18px rgba(244, 183, 64, 0.25); transition: 0.18s; }
.calculate:hover { background: var(--cor-destaque-hover); transform: translateY(-1px); }
.calculate:active { transform: translateY(0); }
.clear { border: 0; background: transparent; color: var(--cor-texto-suave); font-weight: 700; cursor: pointer; padding: 12px; }
.error { min-height: 22px; margin: 10px 0 0; color: var(--cor-erro); font-size: 0.86rem; font-weight: 650; }

.result-list { margin: 8px 0 26px; }
.result-row { display: flex; justify-content: space-between; gap: 18px; padding: 16px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.12); }
.result-row span { color: #adbbcd; }
.result-row strong { font-variant-numeric: tabular-nums; text-align: right; }
.final { margin-top: auto; border-top: 4px solid var(--cor-destaque); padding-top: 23px; }
.final span { color: #b8c3d2; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.14em; }
.final output { display: block; font-family: var(--fonte-titulos); font-size: clamp(2.5rem, 5vw, 4.2rem); line-height: 1.05; margin-top: 8px; color: #fff; font-variant-numeric: tabular-nums; }
.final small { display: block; color: #8f9db0; margin-top: 12px; }

.logout-form { position: absolute; right: 0; top: 4px; }
.logout { border: 1px solid #cad4df; border-radius: 8px; background: #fff; color: var(--cor-principal); font-weight: 750; padding: 9px 16px; cursor: pointer; }
.login-shell { width: min(430px, calc(100% - 28px)); min-height: 100vh; margin: auto; display: grid; place-items: center; position: relative; }
.login-card { width: 100%; background: #fff; border-radius: var(--raio-cartao); padding: 34px; box-shadow: var(--sombra-cartao); border-top: 5px solid var(--cor-destaque); }
.login-card h1 { font-size: 2.35rem; margin-bottom: 10px; }
.login-card p { color: var(--cor-texto-suave); margin: 0 0 25px; }
.login-card label { font-size: 0.88rem; }
.login-card input { padding-right: 13px; }
.login-card button { width: 100%; margin-top: 16px; }
.login-error { color: var(--cor-erro) !important; font-weight: 700; margin: 14px 0 0 !important; }
.lock-note { color: var(--cor-erro) !important; font-weight: 700; }
footer { text-align: center; color: #7b8796; font-size: 0.78rem; margin: 18px 0; }

@media (max-width: 790px) {
  .shell { width: min(100% - 20px, 620px); margin: 18px auto; }
  header { align-items: start; }
  .status { display: none; }
  .workspace { grid-template-columns: 1fr; }
  .inputs { border-right: 0; padding: 22px; }
  .results { padding: 24px; min-height: 410px; }
  .grid.three { grid-template-columns: 1fr 1fr; }
  .final { margin-top: 28px; }
}

@media (max-width: 450px) {
  h1 { font-size: 2rem; }
  .grid, .grid.three { grid-template-columns: 1fr; }
  .actions { align-items: stretch; flex-direction: column; }
  .calculate, .clear { width: 100%; }
  .login-card { padding: 26px; }
}