/* ============================================================
   Calculadora ICTI — folha de estilo compartilhada
   Conceito: publicação estatística oficial (IPEA/relatório
   econômico) traduzida para uma ferramenta web.
   Tipografia: IBM Plex Serif (títulos) · IBM Plex Sans (corpo)
               IBM Plex Mono (números, datas, rótulos)
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --paper: #f3f7f9;
  --card: #ffffff;
  --ink: #18242b;
  --ink-2: #4e6470;
  --ink-3: #7a8f9a;
  --accent: #0e7490;
  --accent-ink: #155e75;
  --accent-contrast: #ffffff;
  --tint: #e6f2f6;
  --rule: #d9e2e7;
  --rule-strong: #bfcfd7;
  --ok: #0c7a43;
  --warn: #8f6400;
  --err: #a93e2b;
  --err-tint: #f7ebe7;
  --grid: rgba(14, 116, 144, 0.07);
  --glow-a: rgba(34, 211, 238, 0.16);
  --glow-b: rgba(56, 130, 246, 0.1);
  --shadow: 0 1px 2px rgba(24, 36, 43, 0.06), 0 8px 24px rgba(24, 36, 43, 0.05);

  --serif: "IBM Plex Serif", "Georgia", serif;
  --sans: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", "Consolas", monospace;

  --radius: 4px;
  --container: 1080px;
}

/* Escuro por preferência do sistema — a não ser que o botão de tema já tenha
   forçado o claro (data-theme="light" tem prioridade sobre o media query). */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0c1418;
    --card: #132028;
    --ink: #e6edf1;
    --ink-2: #9fb2bc;
    --ink-3: #6f838e;
    --accent: #37c0e0;
    --accent-ink: #67d5ef;
    --accent-contrast: #06222b;
    --tint: #16242c;
    --rule: #24333c;
    --rule-strong: #35464f;
    --ok: #4fcb8f;
    --warn: #d9b25f;
    --err: #e08a76;
    --err-tint: #2c1f1a;
    --grid: rgba(103, 213, 239, 0.05);
    --glow-a: rgba(34, 211, 238, 0.1);
    --glow-b: rgba(59, 130, 246, 0.08);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 8px 24px rgba(0, 0, 0, 0.25);
  }
}

/* Escuro forçado pelo botão de tema, independente da preferência do sistema. */
:root[data-theme="dark"] {
  --paper: #0c1418;
  --card: #132028;
  --ink: #e6edf1;
  --ink-2: #9fb2bc;
  --ink-3: #6f838e;
  --accent: #37c0e0;
  --accent-ink: #67d5ef;
  --accent-contrast: #06222b;
  --tint: #16242c;
  --rule: #24333c;
  --rule-strong: #35464f;
  --ok: #4fcb8f;
  --warn: #d9b25f;
  --err: #e08a76;
  --err-tint: #2c1f1a;
  --grid: rgba(103, 213, 239, 0.05);
  --glow-a: rgba(34, 211, 238, 0.1);
  --glow-b: rgba(59, 130, 246, 0.08);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 8px 24px rgba(0, 0, 0, 0.25);
}

/* ---------- Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  overflow-x: clip;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Fundo: papel quadriculado de gráfico… */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.3));
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.3));
}

/* …com brilhos em ciano que derivam lentamente */
body::after {
  content: "";
  position: fixed;
  inset: -22%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(620px 440px at 16% 20%, var(--glow-a), transparent 65%),
    radial-gradient(760px 540px at 84% 72%, var(--glow-b), transparent 65%);
  animation: bg-drift 28s ease-in-out infinite alternate;
  will-change: transform;
}

@keyframes bg-drift {
  from {
    transform: translate3d(-2.5%, -2%, 0) scale(1);
  }

  to {
    transform: translate3d(2.5%, 2%, 0) scale(1.07);
  }
}

img,
svg {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

::selection {
  background: var(--accent);
  color: var(--accent-contrast);
}

h1,
h2,
h3,
h4 {
  font-family: var(--serif);
  line-height: 1.25;
  color: var(--ink);
  text-wrap: balance;
  margin: 0;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* No celular, mais respiro nas laterais */
@media (max-width: 720px) {
  .container {
    padding: 0 1.5rem;
  }
}

/* Respiro geral do conteúdo principal */
main {
  padding: 20px;
}

/* Quando a própria main é o container (páginas internas), o respiro
   lateral vem do .container; aqui só o vertical */
main.container {
  padding-top: 20px;
  padding-bottom: 20px;
}

/* Rótulo tipográfico das seções */
.eyebrow {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

/* ---------- Seletor de idioma ---------- */
.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.1rem;
  height: 2.1rem;
  padding: 0 0.45rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  transition: color 0.15s, border-color 0.15s;
}

.lang-switch:hover {
  color: var(--accent-ink);
  border-color: var(--accent);
}

/* ---------- Cabeçalho ---------- */
.topbar {
  height: 3px;
  background: var(--accent);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.75rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
}

.brand:hover {
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  flex: none;
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-contrast);
}

.brand-name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.brand-name small {
  display: block;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav a {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--ink-2);
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover {
  color: var(--ink);
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  color: var(--ink-2);
  background: none;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.theme-toggle:hover {
  color: var(--ink);
  border-color: var(--rule-strong);
}

.theme-toggle .icon-sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}

:root[data-theme="dark"] .theme-toggle .icon-sun {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-moon {
    display: none;
  }

  :root:not([data-theme="light"]) .theme-toggle .icon-sun {
    display: block;
  }
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.5rem;
  background: none;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

@media (max-width: 720px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    box-shadow: var(--shadow);
    display: none;
  }

  .site-header.nav-open .site-nav {
    display: flex;
  }

  .site-nav a {
    padding: 0.9rem 1.5rem;
    border-bottom: 1px solid var(--rule);
  }

  .site-nav a[aria-current="page"] {
    border-left: 3px solid var(--accent);
    border-bottom-color: var(--rule);
    background: var(--tint);
  }

  .site-header.nav-open .nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .site-header.nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .site-header.nav-open .nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* ---------- Hero (index) ---------- */
.hero {
  padding: 3.5rem 0 1rem;
}

.hero h1 {
  font-size: clamp(1.85rem, 4vw, 2.7rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  max-width: 21ch;
}

.hero .lead {
  max-width: 58ch;
  margin: 1rem 0 0;
  font-size: 1.08rem;
  color: var(--ink-2);
}

.status-line {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--card);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-2);
}

.status-line::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--ink-3);
}

.status-line.is-ok {
  color: var(--ok);
  border-color: color-mix(in srgb, var(--ok) 35%, var(--rule));
}

.status-line.is-ok::before {
  background: var(--ok);
}

.status-line.is-warn {
  color: var(--warn);
}

.status-line.is-warn::before {
  background: var(--warn);
}

.status-line.is-err {
  color: var(--err);
}

.status-line.is-err::before {
  background: var(--err);
}

/* ---------- Calculadora ---------- */
.calc-card {
  margin-top: 2rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.calc-notice {
  margin: 0;
  padding: 0.9rem 1.5rem;
  font-size: 0.85rem;
  color: var(--err);
  background: var(--err-tint);
  border-bottom: 1px solid var(--rule);
}

.calc-grid {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
}

.calc-form {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.field label,
.field legend {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.45rem;
  padding: 0;
}

.field fieldset {
  border: 0;
  padding: 0;
  margin: 0;
}

.field-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.select,
.input {
  width: 100%;
  padding: 0.7rem 0.85rem;
  font-family: var(--sans);
  /* 16px no mínimo: evita o zoom automático do iOS ao focar campos */
  font-size: 1rem;
  color: var(--ink);
  background-color: var(--card);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.select:focus,
.input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

.select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%237a8f9a' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.8rem center;
  padding-right: 2.2rem;
}

.input--money {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

.hint {
  margin: 0.4rem 0 0;
  font-size: 0.78rem;
  color: var(--ink-3);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-contrast);
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.btn:hover {
  background: var(--accent-ink);
  border-color: var(--accent-ink);
}

.btn:disabled {
  opacity: 0.55;
  cursor: wait;
}

.btn--ghost {
  color: var(--accent);
  background: transparent;
  border-color: var(--rule-strong);
}

.btn--ghost:hover {
  background: var(--tint);
  color: var(--accent-ink);
  text-decoration: none;
}

/* Painel de resultado */
.calc-result {
  background: var(--tint);
  border-left: 1px solid var(--rule);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100%;
}

.calc-result .placeholder {
  color: var(--ink-2);
  font-size: 0.95rem;
  margin: 0;
}

.result-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin: 0 0 0.2rem;
}

.result-value {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--accent-ink);
  margin: 0;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.result-original {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 1rem;
  color: var(--ink-2);
  margin: 0;
}

.delta-pill {
  display: inline-block;
  margin-top: 0.6rem;
  padding: 0.2rem 0.65rem;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-contrast);
  background: var(--accent);
  border-radius: 999px;
}

.idx-table {
  width: 100%;
  margin-top: 1.25rem;
  border-top: 1px solid var(--rule-strong);
  border-collapse: collapse;
  font-size: 0.8rem;
}

.idx-table th,
.idx-table td {
  padding: 0.45rem 0;
  text-align: left;
  border-bottom: 1px solid var(--rule);
}

.idx-table th {
  font-weight: 500;
  color: var(--ink-2);
}

.idx-table td {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: var(--ink);
}

.result-error h3 {
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--err);
  margin-bottom: 0.4rem;
}

.result-error p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-2);
}

@media (max-width: 860px) {
  .calc-grid {
    grid-template-columns: 1fr;
  }

  .calc-result {
    border-left: 0;
    border-top: 1px solid var(--rule);
  }
}

/* ---------- Seções ---------- */
.section {
  padding: 3.5rem 0 0;
}

.section:last-of-type {
  padding-bottom: 3.5rem;
}

.section-head {
  border-top: 1px solid var(--rule-strong);
  padding-top: 1.5rem;
  margin-bottom: 1.5rem;
}

.section-head h2 {
  font-size: 1.55rem;
  font-weight: 600;
}

.section .prose {
  max-width: 68ch;
}

.prose p {
  margin: 0 0 1rem;
  color: var(--ink-2);
}

.prose p strong {
  color: var(--ink);
}

.prose p:last-child {
  margin-bottom: 0;
}

/* Bloco de fórmula */
.formula-block {
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--ink);
  overflow-x: auto;
  white-space: nowrap;
}

/* Grid de dois blocos (o que é / como funciona) */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

/* Itens de grid podem encolher abaixo do conteúdo (o bloco de fórmula
   com nowrap rola internamente em vez de alargar a página no celular) */
.split > *,
.calc-grid > * {
  min-width: 0;
}

@media (max-width: 860px) {
  .split {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 760px;
  border-top: 1px solid var(--rule);
}

.faq-list details {
  border-bottom: 1px solid var(--rule);
}

.faq-list summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 0.25rem;
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 1.1rem;
  color: var(--accent);
  flex: none;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  margin: 0 0 1.25rem;
  padding: 0 0.25rem;
  max-width: 65ch;
  color: var(--ink-2);
}

/* ---------- Faixa de CTA ---------- */
.cta-band {
  margin-top: 3.5rem;
  padding: 2.25rem 2rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.cta-band h2 {
  font-size: 1.3rem;
  font-weight: 600;
}

.cta-band p {
  margin: 0.4rem 0 0;
  max-width: 52ch;
  color: var(--ink-2);
  font-size: 0.95rem;
}

/* ---------- Cabeçalho de página interna ---------- */
.page-head {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--rule);
}

.page-head h1 {
  font-size: clamp(1.7rem, 3.5vw, 2.3rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-head .lead {
  margin: 0.75rem 0 0;
  max-width: 60ch;
  font-size: 1.05rem;
  color: var(--ink-2);
}

/* ---------- Blog: lista editorial ---------- */
.article-list {
  padding: 2.5rem 0 3.5rem;
  max-width: 820px;
}

.article-entry {
  display: grid;
  grid-template-columns: 9.5rem minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--rule);
}

.article-entry:first-child {
  padding-top: 0;
}

.entry-meta {
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.9;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.article-entry h2 {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.article-entry h2 a {
  color: var(--ink);
}

.article-entry h2 a:hover {
  color: var(--accent-ink);
}

.article-entry p {
  margin: 0 0 0.75rem;
  color: var(--ink-2);
  max-width: 62ch;
}

.read-more {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}

@media (max-width: 640px) {
  .article-entry {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

/* ---------- Artigo ---------- */
.article-page {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 0 2rem;
}

.breadcrumb {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 1.5rem;
}

.article-page h1 {
  font-size: clamp(1.7rem, 3.5vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin: 1rem 0 0;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-3);
}

.article-body {
  padding-top: 1.75rem;
}

.article-body p {
  margin: 0 0 1.15rem;
  color: var(--ink-2);
  font-size: 1.02rem;
}

.article-body p strong {
  color: var(--ink);
}

.article-body h2 {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 2.25rem 0 0.85rem;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.15rem;
  padding-left: 1.4rem;
  color: var(--ink-2);
}

.article-body li {
  margin-bottom: 0.5rem;
}

.article-body li strong {
  color: var(--ink);
}

.article-body a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body figcaption {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--ink-3);
  margin-top: 0.6rem;
}

/* Painel de estatísticas (substitui imagens de dados) */
.stat-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: 1.75rem 0;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 8px;
  overflow: hidden;
}

.stat-panel > div {
  background: var(--card);
  padding: 1.5rem;
}

.stat-panel .stat-value {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 2rem;
  font-weight: 600;
  color: var(--accent-ink);
  line-height: 1.1;
}

.stat-panel .stat-label {
  margin-top: 0.4rem;
  font-size: 0.85rem;
  color: var(--ink-2);
}

@media (max-width: 520px) {
  .stat-panel {
    grid-template-columns: 1fr;
  }
}

/* Tabela de dados em artigos */
.table-scroll {
  overflow-x: auto;
  margin: 1.5rem 0;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.data-table th,
.data-table td {
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--rule);
  text-align: left;
}

.data-table thead th {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  border-bottom: 1px solid var(--rule-strong);
}

.data-table th.num,
.data-table td.num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.data-table tbody tr:hover {
  background: var(--tint);
}

.data-table .is-partial td {
  color: var(--ink-3);
}

/* Bloco de exemplo (modelos de cláusula etc.) */
.example-block {
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  color: var(--ink-2);
  font-size: 0.95rem;
}

.example-block p {
  margin: 0 0 0.75rem;
}

.example-block p:last-child {
  margin-bottom: 0;
}

/* Rodapé do artigo: leia também */
.article-footer {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule-strong);
}

.article-footer h2 {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.9rem;
}

.article-footer ul {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
}

.article-footer li {
  margin-bottom: 0.5rem;
}

/* ---------- Documentos (sobre, termos, privacidade, contato) ---------- */
.doc {
  max-width: 720px;
  padding: 2.5rem 0 3.5rem;
}

.doc p {
  margin: 0 0 1.15rem;
  color: var(--ink-2);
}

.doc p strong {
  color: var(--ink);
}

.doc h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2.25rem 0 0.75rem;
}

.doc ul,
.doc ol {
  margin: 0 0 1.15rem;
  padding-left: 1.4rem;
  color: var(--ink-2);
}

.doc li {
  margin-bottom: 0.4rem;
}

.doc-updated {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-3);
}

/* Cartão de contato */
.contact-card {
  margin: 1.5rem 0;
  padding: 1.75rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 8px;
}

.contact-card .contact-email {
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.contact-card p {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
}

/* ---------- Chamada de apoio acima da calculadora ---------- */
/* Uma linha no celular; no desktop ganha moldura e vira um convite mais
   presente, já que lá sobra largura. Nunca empurra a calculadora para fora
   da primeira tela. */
.support-nudge {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.15rem 0.6rem;
  margin: 0 0 1.5rem;
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--ink-3);
}

.support-nudge[hidden] {
  display: none;
}

.support-nudge-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.38rem 0.95rem;
  font-weight: 600;
  font-size: 0.88rem;
  line-height: 1.4;
  color: var(--accent-ink);
  background: var(--card);
  border: 1px solid var(--rule-strong);
  border-radius: 6px;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 1px 3px rgba(24, 36, 43, 0.06);
  cursor: pointer;
  overflow: hidden;
  transform-origin: center center;
  will-change: transform, box-shadow;
  /* Pulso contínuo + fade de entrada quando o bloco é revelado. */
  animation: pixPulsoConstante 1.4s ease-in-out infinite,
             pixEntrada 350ms ease-out;
}

:root:not([data-theme="light"]) .support-nudge-link,
[data-theme="dark"] .support-nudge-link {
  animation-name: pixPulsoConstanteDark, pixEntrada;
}

@keyframes pixEntrada {
  from { opacity: 0; }
  to { opacity: 1; }
}

.support-nudge-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  filter: brightness(1.04);
}

@keyframes pixPulsoConstante {
  0% {
    transform: scale(1);
    box-shadow: 0 1px 3px rgba(24, 36, 43, 0.08), 0 0 0 0 rgba(12, 158, 136, 0.55);
  }
  50% {
    transform: scale(1.07);
    border-color: var(--accent);
    box-shadow: 0 6px 20px rgba(12, 158, 136, 0.38), 0 0 0 8px rgba(12, 158, 136, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 1px 3px rgba(24, 36, 43, 0.08), 0 0 0 0 rgba(12, 158, 136, 0);
  }
}

@keyframes pixPulsoConstanteDark {
  0% {
    transform: scale(1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3), 0 0 0 0 rgba(56, 222, 199, 0.65);
  }
  50% {
    transform: scale(1.07);
    border-color: #37c0e0;
    box-shadow: 0 6px 22px rgba(56, 222, 199, 0.45), 0 0 0 9px rgba(56, 222, 199, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3), 0 0 0 0 rgba(56, 222, 199, 0);
  }
}

.pix-btn-icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 17px;
  height: 17px;
  color: #0c9e88;
  flex-shrink: 0;
  transform-origin: center center;
  animation: pixIcone 1.4s ease-in-out infinite;
}

@keyframes pixIcone {
  0%, 100% { transform: scale(1) rotate(-7deg); }
  50% { transform: scale(1.18) rotate(7deg); }
}

:root:not([data-theme="light"]) .pix-btn-icon-wrapper,
[data-theme="dark"] .pix-btn-icon-wrapper {
  color: #38dec7;
}

.pix-btn-icon {
  width: 14px;
  height: 14px;
  display: block;
}

.pix-btn-label {
  letter-spacing: -0.01em;
}

.pix-btn-arrow {
  display: inline-block;
  font-size: 0.95rem;
  line-height: 1;
  transform-origin: center center;
  animation: pixSeta 1.4s ease-in-out infinite;
}

@keyframes pixSeta {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(4px); }
}

.pix-btn-shimmer {
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.35),
    transparent
  );
  transform: translateX(0) skewX(-20deg);
  pointer-events: none;
  /* Varre em ~900ms e descansa o resto do ciclo. Anima transform, não 'left':
     'left' recalcularia layout a cada quadro. */
  animation: pixBrilho 2.8s ease-in-out 1.4s infinite;
}

@keyframes pixBrilho {
  0% { transform: translateX(0) skewX(-20deg); }
  32%, 100% { transform: translateX(600%) skewX(-20deg); }
}

:root:not([data-theme="light"]) .pix-btn-shimmer,
[data-theme="dark"] .pix-btn-shimmer {
  background: linear-gradient(
    90deg,
    transparent,
    rgba(55, 192, 224, 0.2),
    transparent
  );
}

.pix-btn-ripple {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14, 116, 144, 0.35) 0%, rgba(14, 116, 144, 0) 70%);
  transform: scale(0);
  pointer-events: none;
  animation: pixRipple 600ms ease-out forwards;
}

@keyframes pixRipple {
  from { transform: scale(0); opacity: 0.65; }
  to { transform: scale(1.2); opacity: 0; }
}

:root:not([data-theme="light"]) .pix-btn-ripple,
[data-theme="dark"] .pix-btn-ripple {
  background: radial-gradient(circle, rgba(55, 192, 224, 0.45) 0%, rgba(55, 192, 224, 0) 70%);
}

@media (min-width: 721px) {
  .support-nudge {
    align-items: center;
    justify-content: space-between;
    padding: 0.7rem 1.1rem;
    background: var(--tint);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    font-size: 0.9rem;
    color: var(--ink-2);
  }

  .support-nudge-link {
    padding: 0.4rem 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .support-nudge-link,
  .pix-btn-arrow,
  .pix-btn-icon-wrapper,
  .pix-btn-shimmer,
  .pix-btn-ripple,
  .support-card:target,
  .pix-acoes button.is-pulando {
    transition: none !important;
    animation: none !important;
    transform: none !important;
  }

  .support-nudge-link {
    opacity: 1 !important;
  }
}

/* Convite dentro do painel de resultado: só existe depois de um cálculo que
   deu certo, que é quando a pessoa acabou de receber o que veio buscar. */
.result-support {
  margin: 1.25rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  font-size: 0.86rem;
}

.result-support a {
  font-weight: 500;
  color: var(--accent-ink);
}

/* Destaque ao aterrissar no bloco vindo de um link #apoiar. Sai de graça com
   :target — não precisa de script para detectar a chegada. */
.support-card:target {
  animation: pixDestaque 650ms ease-out;
}

@keyframes pixDestaque {
  0% { transform: scale(0.985); }
  60% { transform: scale(1.015); }
  100% { transform: scale(1); }
}

/* Pulinho de confirmação ao copiar; a classe é removida no animationend. */
.pix-acoes button.is-pulando {
  animation: pixCopiado 350ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes pixCopiado {
  0% { transform: scale(0.94); }
  55% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

/* ---------- Bloco de apoio via Pix ---------- */
/* Nasce com [hidden] no HTML; assets/js/pix.js revela só quando há uma
   chave Pix válida em data/pix.json. */
.support-card {
  margin: 2.5rem 0 0;
  padding: 1.75rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.support-card[hidden] {
  display: none;
}

.support-card h2 {
  margin: 0.4rem 0 0.75rem;
  font-family: var(--serif);
  font-size: 1.35rem;
  line-height: 1.25;
  color: var(--ink);
}

.support-card .support-lead {
  margin: 0 0 1.5rem;
  max-width: 60ch;
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--ink-2);
}

.support-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.75rem;
  align-items: start;
}

.support-grid > * {
  min-width: 0;
}

/* Botões de valor */
.pix-valores {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.1rem;
}

.pix-valores button {
  padding: 0.6rem 1.05rem;
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink-2);
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.pix-valores button:hover {
  color: var(--accent-ink);
  border-color: var(--accent);
}

.pix-valores button[aria-pressed="true"] {
  color: var(--accent-contrast);
  background: var(--accent);
  border-color: var(--accent);
}

/* Ações de cópia */
.pix-acoes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.9rem;
}

.pix-acoes button {
  padding: 0.7rem 1.1rem;
  font-family: var(--sans);
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius);
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.pix-copiar-codigo {
  color: var(--accent-contrast);
  background: var(--accent);
  border: 1px solid var(--accent);
}

.pix-copiar-codigo:hover {
  background: var(--accent-ink);
  border-color: var(--accent-ink);
}

.pix-copiar-chave {
  color: var(--accent-ink);
  background: transparent;
  border: 1px solid var(--rule-strong);
}

.pix-copiar-chave:hover {
  border-color: var(--accent);
}

.pix-acoes button.is-copiado {
  color: var(--accent-contrast);
  background: var(--ok);
  border-color: var(--ok);
}

.pix-aviso {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  color: var(--ink-3);
}

/* Chave e recebedor */
.pix-dados {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--ink-3);
}

.pix-dados dt {
  display: inline;
  font-weight: 500;
}

.pix-dados dd {
  display: inline;
  margin: 0 0 0 0.3rem;
  font-family: var(--mono);
  color: var(--ink-2);
}

/* Só a chave quebra no meio: é uma string sem espaços que estoura o bloco.
   O nome do recebedor quebra por palavra, como texto normal. */
.pix-dados dd.pix-chave-valor {
  word-break: break-all;
}

.pix-dados dd::after {
  content: "";
  display: block;
  margin-bottom: 0.15rem;
}

/* O textarea guarda o copia-e-cola para o fallback de cópia e para quem
   quiser selecionar à mão; fica fora da tela, mas acessível. */
.pix-codigo {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Se a cópia automática falhar (permissão negada, navegador antigo), o código
   aparece para a pessoa selecionar à mão — senão ela fica sem saída. */
.pix-codigo.is-visivel {
  position: static;
  width: 100%;
  height: 4.5rem;
  margin-bottom: 0.9rem;
  padding: 0.6rem 0.7rem;
  overflow: auto;
  clip: auto;
  white-space: pre-wrap;
  word-break: break-all;
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--ink-2);
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  resize: vertical;
}

/* QR: fundo claro fixo nos dois temas — módulo escuro sobre fundo escuro
   não é legível pela câmera. */
.pix-qr {
  margin: 0;
  padding: 0.75rem;
  background: #ffffff;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.pix-qr img {
  display: block;
  width: 148px;
  height: 148px;
}

.pix-qr figcaption {
  margin-top: 0.5rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
  color: #4e6470;
}

/* Cartão, boleto ou apoio mensal (link de pagamento externo) */
.pix-gateway {
  margin: 1.25rem 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--rule);
  font-size: 0.88rem;
  color: var(--ink-3);
}

.pix-gateway[hidden] {
  display: none;
}

.pix-nota {
  margin: 1rem 0 0;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--ink-3);
}

@media (max-width: 640px) {
  .support-card {
    padding: 1.35rem;
  }

  .support-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.35rem;
  }

  .pix-qr {
    justify-self: start;
  }

  .pix-acoes button,
  .pix-valores button {
    flex: 1 1 auto;
  }
}

/* ---------- Rodapé ---------- */
.site-footer {
  margin-top: 4rem;
  border-top: 1px solid var(--rule-strong);
  background: var(--card);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
  padding: 3rem 0 2rem;
}

.footer-brand p {
  margin: 0.75rem 0 0;
  max-width: 38ch;
  font-size: 0.88rem;
  color: var(--ink-2);
}

.footer-col h3 {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.9rem;
}

.footer-col nav {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.footer-col a {
  font-size: 0.88rem;
  color: var(--ink-2);
}

.footer-col a:hover {
  color: var(--accent-ink);
}

.footer-note {
  border-top: 1px solid var(--rule);
  padding: 1.25rem 0 2rem;
}

.footer-note p {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  color: var(--ink-3);
}

@media (max-width: 720px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* ---------- Ajustes finos para telas pequenas ---------- */
@media (max-width: 480px) {
  .hero {
    padding-top: 2.25rem;
  }

  .calc-form {
    padding: 1.25rem;
    gap: 1.15rem;
  }

  .calc-result {
    padding: 1.5rem 1.25rem;
  }

  .result-value {
    font-size: 1.6rem;
  }

  .formula-block {
    padding: 1rem 1.15rem;
    font-size: 0.82rem;
  }

  .section {
    padding-top: 2.5rem;
  }

  .cta-band {
    padding: 1.5rem 1.25rem;
    margin-top: 2.5rem;
  }

  .page-head {
    padding: 2.25rem 0 1.5rem;
  }

  .article-page {
    padding-top: 2.25rem;
  }

  .footer-grid {
    padding: 2.25rem 0 1.5rem;
  }
}

/* ---------- Movimento reduzido ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}