/* ==========================================================================
   Calculadora Juros Compostos — estilos
   ========================================================================== */

:root {
  /* Paleta inspirada nas cores do Brasil (azul-verde-amarelo) com foco
     em confiança financeira: azul = confiança, verde = dinheiro/crescimento,
     dourado = destaque otimista (usado com moderação). */
  --azul: #1d4ed8;
  --azul-escuro: #1e40af;
  --azul-marinho: #1e3a8a;
  --azul-claro: #eff6ff;
  --verde: #0e9f6e;
  --verde-escuro: #047857;
  --verde-claro: #d1fae5;
  --dourado: #f59e0b;
  --dourado-escuro: #b45309;
  --dourado-claro: #fef3c7;
  --tinta: #0f172a;
  --cinza-800: #1f2937;
  --cinza-600: #4b5563;
  --cinza-500: #6b7280;
  --cinza-400: #9ca3af;
  --cinza-300: #d1d5db;
  --cinza-200: #e5e7eb;
  --cinza-100: #f3f4f6;
  --cinza-50: #f9fafb;
  --branco: #ffffff;
  --amarelo: #faca15;
  --sombra: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .04);
  --sombra-md: 0 4px 6px -1px rgba(0, 0, 0, .08), 0 2px 4px -1px rgba(0, 0, 0, .04);
  --sombra-lg: 0 20px 25px -5px rgba(0, 0, 0, .08), 0 10px 10px -5px rgba(0, 0, 0, .03);
  --raio: 14px;
  --raio-sm: 9px;
  --max: 1120px;
  --fonte: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--fonte);
  color: var(--cinza-800);
  background: var(--cinza-50);
  line-height: 1.65;
  font-size: 17px;
}

img { max-width: 100%; display: block; }

a { color: var(--azul); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

h1, h2, h3 { color: var(--tinta); line-height: 1.25; font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: 1.9rem; margin: 0 0 14px; }
h3 { font-size: 1.28rem; margin: 28px 0 10px; }
p { margin: 0 0 16px; }

/* -------------------------------------------------------------------- Header */
.site-header {
  background: var(--branco);
  border-bottom: 1px solid var(--cinza-200);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--tinta);
}
.brand:hover { text-decoration: none; }
.brand .logo {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--azul), var(--azul-marinho));
  border-radius: 9px;
  display: grid; place-items: center;
  color: #fff; font-size: 19px;
}
.nav { display: flex; gap: 26px; align-items: center; }
.nav a { color: var(--cinza-600); font-weight: 600; font-size: .96rem; }
.nav a:hover { color: var(--azul-escuro); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; }

/* ---------------------------------------------------------------------- Hero */
.hero {
  background: linear-gradient(180deg, var(--azul-claro) 0%, var(--cinza-50) 100%);
  padding: 46px 0 26px;
  border-bottom: 1px solid var(--cinza-200);
}
.hero h1 {
  font-size: 2.5rem;
  margin: 0 0 14px;
  max-width: 760px;
}
.hero .lead {
  font-size: 1.15rem;
  color: var(--cinza-600);
  max-width: 760px;
  margin: 0;
}
.hero .badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--dourado-claro);
  color: var(--dourado-escuro);
  font-weight: 700; font-size: .82rem;
  padding: 6px 14px; border-radius: 999px;
  margin-bottom: 18px;
  text-transform: uppercase; letter-spacing: .04em;
}

/* ------------------------------------------------------------------ Calculadora */
.calc-wrap {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 26px;
  margin-top: 28px;
  position: relative;
}
.card {
  background: var(--branco);
  border: 1px solid var(--cinza-200);
  border-radius: var(--raio);
  box-shadow: var(--sombra-md);
}
.calc-form { padding: 26px 24px; }
.calc-form h2 { font-size: 1.35rem; margin-bottom: 4px; }
.calc-form .sub { color: var(--cinza-500); font-size: .95rem; margin-bottom: 22px; }

.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-weight: 700;
  font-size: .92rem;
  color: var(--cinza-800);
  margin-bottom: 7px;
}
.field .hint { font-weight: 500; color: var(--cinza-400); font-size: .82rem; }

.input-group {
  display: flex;
  align-items: stretch;
  border: 1.5px solid var(--cinza-300);
  border-radius: var(--raio-sm);
  overflow: hidden;
  transition: border-color .15s, box-shadow .15s;
  background: #fff;
}
.input-group:focus-within {
  border-color: var(--verde);
  box-shadow: 0 0 0 3px rgba(14, 159, 110, .15);
}
.input-group .prefix, .input-group .suffix {
  display: grid; place-items: center;
  padding: 0 13px;
  background: var(--cinza-100);
  color: var(--cinza-600);
  font-weight: 700;
  font-size: .95rem;
  white-space: nowrap;
}
.input-group input {
  flex: 1;
  border: 0;
  outline: 0;
  padding: 13px 14px;
  font-size: 1.05rem;
  font-family: inherit;
  color: var(--tinta);
  width: 100%;
  background: transparent;
}
.input-group select {
  border: 0;
  border-left: 1.5px solid var(--cinza-200);
  background: var(--cinza-100);
  padding: 0 12px;
  font-family: inherit;
  font-weight: 700;
  font-size: .9rem;
  color: var(--cinza-700, #374151);
  cursor: pointer;
  outline: 0;
}

.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  border: 0; cursor: pointer;
  font-family: inherit; font-weight: 700; font-size: 1.05rem;
  padding: 15px 22px;
  border-radius: var(--raio-sm);
  transition: transform .05s, background .15s, box-shadow .15s;
  width: 100%;
}
.btn-primary {
  background: linear-gradient(135deg, var(--verde), var(--verde-escuro));
  color: #fff;
  box-shadow: 0 4px 12px rgba(14, 159, 110, .3);
}
.btn-primary:hover { box-shadow: 0 6px 18px rgba(14, 159, 110, .4); text-decoration: none; }
.btn-primary:active { transform: translateY(1px); }
.btn-reset {
  background: none; border: 0; color: var(--cinza-500);
  font-weight: 600; font-size: .9rem; cursor: pointer;
  width: 100%; margin-top: 10px; padding: 6px;
}
.btn-reset:hover { color: var(--verde-escuro); }

/* --------------------------------------------------------------------- Resultado */
.result { padding: 26px 24px; display: flex; flex-direction: column; }
.result h2 { font-size: 1.35rem; margin-bottom: 18px; }

.result-highlight {
  background: linear-gradient(135deg, var(--verde-escuro), #047857);
  color: #fff;
  border-radius: var(--raio-sm);
  padding: 20px 22px;
  margin-bottom: 16px;
}
.result-highlight .rh-label { font-size: .9rem; opacity: .9; font-weight: 600; }
.result-highlight .rh-value { font-size: 2.15rem; font-weight: 800; letter-spacing: -.02em; margin-top: 2px; }

.result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
.stat {
  background: var(--cinza-50);
  border: 1px solid var(--cinza-200);
  border-radius: var(--raio-sm);
  padding: 14px 16px;
}
.stat .s-label { font-size: .82rem; color: var(--cinza-500); font-weight: 600; display: flex; align-items: center; gap: 6px; }
.stat .s-dot { width: 9px; height: 9px; border-radius: 3px; display: inline-block; }
.stat .s-value { font-size: 1.35rem; font-weight: 800; color: var(--tinta); margin-top: 3px; }
.dot-invest { background: var(--azul); }
.dot-juros { background: var(--verde); }

.chart-box { position: relative; height: 230px; margin-top: auto; }

/* ----------------------------------------------------------------------- Tabela */
.tabela-section { padding: 34px 0; }
.table-scroll { overflow-x: auto; border-radius: var(--raio); border: 1px solid var(--cinza-200); }
table.evolucao {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  font-size: .95rem;
}
table.evolucao th, table.evolucao td {
  padding: 12px 16px;
  text-align: right;
  border-bottom: 1px solid var(--cinza-100);
  white-space: nowrap;
}
table.evolucao th:first-child, table.evolucao td:first-child { text-align: left; }
table.evolucao thead th {
  background: var(--cinza-100);
  color: var(--cinza-600);
  font-weight: 700;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .03em;
  position: sticky; top: 0;
}
table.evolucao tbody tr:hover { background: var(--cinza-50); }
table.evolucao tbody tr:last-child td { border-bottom: 0; font-weight: 700; }

/* ---------------------------------------------------------------------- Conteúdo */
.content { padding: 20px 0 10px; }
.content .prose { max-width: 760px; }
.content .prose ul, .content .prose ol { margin: 0 0 18px; padding-left: 22px; }
.content .prose li { margin-bottom: 8px; }
.section { padding: 30px 0; border-top: 1px solid var(--cinza-200); }
.section:first-child { border-top: 0; }

.formula {
  background: linear-gradient(135deg, var(--azul-marinho), var(--azul-escuro));
  color: #fff;
  border-radius: var(--raio);
  padding: 24px;
  text-align: center;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: .02em;
  margin: 18px 0;
}
.formula small { display: block; font-size: .82rem; font-weight: 500; opacity: .75; margin-top: 12px; letter-spacing: 0; }

.callout {
  background: var(--verde-claro);
  border-left: 4px solid var(--verde);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 18px 0;
}
.callout strong { color: var(--verde-escuro); }
.callout.dourado { background: var(--dourado-claro); border-left-color: var(--dourado); }
.callout.dourado strong { color: var(--dourado-escuro); }

/* Comparação juros simples x compostos */
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 20px 0; }
.compare-card {
  border: 1px solid var(--cinza-200);
  border-radius: var(--raio);
  padding: 20px;
  background: #fff;
}
.compare-card h3 { margin-top: 0; }
.compare-card.destaque { border-color: var(--verde); background: #f0fdf4; }

/* FAQ */
.faq details {
  border: 1px solid var(--cinza-200);
  border-radius: var(--raio-sm);
  background: #fff;
  margin-bottom: 12px;
  overflow: hidden;
}
.faq summary {
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--tinta);
  list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 14px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-size: 1.5rem; color: var(--verde); font-weight: 400; flex-shrink: 0; }
.faq details[open] summary::after { content: '−'; }
.faq details[open] summary { border-bottom: 1px solid var(--cinza-100); }
.faq .faq-body { padding: 4px 20px 18px; color: var(--cinza-600); }
.faq .faq-body p:last-child { margin-bottom: 0; }

/* EEAT / autor */
.author-box {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--cinza-200);
  border-radius: var(--raio);
  padding: 22px;
  margin: 8px 0;
}
.author-box .avatar {
  width: 58px; height: 58px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--azul), var(--azul-escuro));
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 1.2rem;
}
.author-box .a-name { font-weight: 800; color: var(--tinta); }
.author-box .a-role { color: var(--cinza-500); font-size: .9rem; margin-bottom: 8px; }
.author-box p { font-size: .95rem; margin: 0; color: var(--cinza-600); }

/* Embeds: mapa + vídeo */
.embed-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.embed-card h3 { margin-top: 0; }
.embed-frame {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  border-radius: var(--raio);
  overflow: hidden;
  border: 1px solid var(--cinza-200);
  box-shadow: var(--sombra);
}
.embed-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* Cards de links internos (para blog futuro) */
.links-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.link-card {
  display: block;
  background: #fff;
  border: 1px solid var(--cinza-200);
  border-radius: var(--raio);
  padding: 20px;
  transition: transform .12s, box-shadow .12s, border-color .12s;
}
.link-card:hover { transform: translateY(-3px); box-shadow: var(--sombra-md); border-color: var(--azul); text-decoration: none; }
.link-card .lc-tag { font-size: .78rem; font-weight: 700; color: var(--azul-escuro); text-transform: uppercase; letter-spacing: .04em; }
.link-card .lc-title { font-weight: 800; color: var(--tinta); margin: 6px 0 4px; font-size: 1.08rem; }
.link-card .lc-desc { font-size: .9rem; color: var(--cinza-500); margin: 0; }

/* ---------------------------------------------------------------------- Footer */
.site-footer {
  background: var(--tinta);
  color: #cbd5e1;
  padding: 46px 0 26px;
  margin-top: 40px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
.site-footer .brand { color: #fff; margin-bottom: 12px; }
.site-footer p { font-size: .92rem; color: #9ca3af; }
.site-footer h4 { color: #fff; font-size: .95rem; margin: 0 0 14px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 9px; }
.site-footer a { color: #cbd5e1; font-size: .92rem; }
.site-footer a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 22px;
  font-size: .85rem;
  color: #9ca3af;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}
.footer-bottom .disclaimer { max-width: 640px; }

/* ------------------------------------------------------------------ Responsivo */
@media (max-width: 900px) {
  .calc-wrap { grid-template-columns: 1fr; }
  .embed-grid { grid-template-columns: 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .links-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .hero h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .nav { display: none; }
  .nav.open {
    display: flex; flex-direction: column; position: absolute;
    top: 66px; left: 0; right: 0; background: #fff;
    padding: 14px 20px; gap: 6px; border-bottom: 1px solid var(--cinza-200);
    box-shadow: var(--sombra-md);
  }
  .nav.open a { padding: 8px 0; }
  .nav-toggle { display: block; }
  .hero { padding: 32px 0 22px; }
  .hero h1 { font-size: 1.7rem; }
  .hero .lead { font-size: 1.02rem; }
  .result-grid { grid-template-columns: 1fr; }
  .row-2 { grid-template-columns: 1fr; }
  .result-highlight .rh-value { font-size: 1.8rem; }
}

/* ------------------------------------------------- Mobile (ajustes extras) */
.site-header { position: sticky; top: 0; z-index: 50; background: #fff; }
.header-inner { gap: 12px; }
.brand { min-width: 0; }
.brand span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.input-group input, .input-group select { font-size: 16px; } /* evita zoom no iOS */

@media (max-width: 760px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .brand { font-size: 1rem; gap: 8px; }
  .hero { padding: 28px 0 18px; }
  .hero h1 { font-size: clamp(1.5rem, 7vw, 2rem); line-height: 1.2; }
  .hero .lead { font-size: 1rem; }
  .card { padding: 18px 16px; }
  .result-highlight .rh-value { font-size: clamp(1.4rem, 7.5vw, 2rem); word-break: break-word; }
  .s-value { font-size: 1.05rem; word-break: break-word; }
  .chart-box { height: 260px; }
  .table-scroll { -webkit-overflow-scrolling: touch; }
  table.evolucao { font-size: .9rem; min-width: 520px; }
  table.evolucao th, table.evolucao td { padding: 10px 12px; white-space: nowrap; }
  .btn, .btn-primary { width: 100%; justify-content: center; }
  .prose h2 { font-size: 1.35rem; }
  .prose p, .prose li { font-size: 1rem; line-height: 1.7; }
  .nav-toggle { min-width: 44px; min-height: 44px; display: grid; place-items: center; }
  iframe, video, img { max-width: 100%; }
}

@media (max-width: 400px) {
  .brand span:last-child { font-size: .95rem; }
  .result-grid { gap: 10px; }
}

.brand img.logo { background: none; border-radius: 9px; display: block; }