/* =========================================================================
   Curso de Literacia Financeira — styles.css
   Estilo: minimal corporate. Paleta #0A3D62 + #F39C12. Tipografia Inter.
   Mobile-first. WCAG 2.2 AA: contraste, foco visível, alvos de toque >= 44px.
   ========================================================================= */

/* ---------- Design tokens ---------- */
:root {
  --c-primary: #0A3D62;          /* azul corporativo */
  --c-primary-700: #082f4b;      /* hover/escuro */
  --c-primary-050: #eef3f7;      /* fundo suave */
  --c-accent: #F39C12;           /* dourado de destaque */
  --c-accent-700: #c87f08;       /* dourado escuro (texto AA sobre branco) */

  --c-ink: #1c2b36;              /* texto principal */
  --c-ink-soft: #4a5b67;         /* texto secundário */
  --c-line: #d9e1e8;             /* divisórias */
  --c-bg: #ffffff;
  --c-bg-alt: #f6f8fa;

  --c-success-bg: #e4f4ea;
  --c-success-ink: #1d6b3f;
  --c-success-border: #2e9d5e;
  --c-error-bg: #fbe7e7;
  --c-error-ink: #9b1c1c;
  --c-error-border: #d64545;
  --c-warn-bg: #fef3e0;
  --c-warn-ink: #7a4d05;
  --c-warn-border: var(--c-accent);

  --radius: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 3px rgba(10, 61, 98, 0.08);
  --shadow-md: 0 6px 20px rgba(10, 61, 98, 0.12);

  --maxw: 1180px;
  --sidebar-w: 300px;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;

  --step--1: clamp(0.83rem, 0.79rem + 0.18vw, 0.92rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.08rem);
  --step-1: clamp(1.2rem, 1.1rem + 0.5vw, 1.4rem);
  --step-2: clamp(1.45rem, 1.3rem + 0.8vw, 1.85rem);
  --step-3: clamp(1.8rem, 1.5rem + 1.5vw, 2.6rem);
  --step-4: clamp(2.2rem, 1.7rem + 2.6vw, 3.4rem);
}

/* ---------- Reset leve ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}
body {
  margin: 0;
  font-family: var(--font);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--c-ink);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--c-primary); text-underline-offset: 2px; }
a:hover { color: var(--c-primary-700); }

/* ---------- Acessibilidade: foco e skip-link ---------- */
:focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: 2px;
  border-radius: 4px;
}
.skip-link {
  position: absolute;
  left: 8px;
  top: -48px;
  background: var(--c-primary);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top 0.18s ease;
  font-weight: 600;
}
.skip-link:focus { top: 8px; color: #fff; }
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 1.25rem; }

/* ---------- Header / top bar ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: var(--c-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.site-header__inner {
  display: flex; align-items: center; gap: 0.75rem;
  min-height: 60px; padding-block: 0.5rem;
}
.brand {
  display: inline-flex; align-items: center; gap: 0.6rem;
  color: #fff; text-decoration: none; font-weight: 700; font-size: var(--step-1);
}
.brand:hover { color: #fff; }
.brand__mark {
  width: 32px; height: 32px; flex: 0 0 auto;
  display: grid; place-items: center;
  background: var(--c-accent); color: var(--c-primary-700);
  border-radius: 8px; font-weight: 800; font-size: 1rem;
}
.header-progress { margin-left: auto; display: flex; align-items: center; gap: 0.6rem; font-size: var(--step--1); }
.header-progress__bar {
  width: 120px; height: 8px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.25); overflow: hidden;
}
.header-progress__fill { height: 100%; width: 0; background: var(--c-accent); transition: width 0.4s ease; }
.btn-nav-toggle {
  display: none;
  background: rgba(255,255,255,0.12); color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-sm); min-height: 44px; min-width: 44px;
  font-size: 1.25rem; cursor: pointer;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: inherit; font-size: var(--step-0); font-weight: 600;
  min-height: 46px; padding: 0.55rem 1.4rem;
  border-radius: var(--radius-sm); border: 2px solid transparent;
  cursor: pointer; text-decoration: none; line-height: 1.2;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--c-accent); color: var(--c-primary-700); }
.btn--primary:hover { background: var(--c-accent-700); color: #fff; }
.btn--ghost { background: transparent; color: var(--c-primary); border-color: var(--c-line); }
.btn--ghost:hover { background: var(--c-primary-050); border-color: var(--c-primary); }
.btn--on-dark { background: var(--c-accent); color: var(--c-primary-700); }
.btn--on-dark:hover { background: #fff; color: var(--c-primary-700); }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.btn--sm { min-height: 40px; padding: 0.4rem 1rem; font-size: var(--step--1); }

/* ---------- Hero (home) ---------- */
.hero {
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(243,156,18,0.18), transparent 60%),
    linear-gradient(160deg, var(--c-primary) 0%, var(--c-primary-700) 100%);
  color: #fff; padding-block: clamp(2.5rem, 6vw, 5rem);
}
.hero__eyebrow {
  display: inline-block; text-transform: uppercase; letter-spacing: 0.12em;
  font-size: var(--step--1); font-weight: 700; color: var(--c-accent);
  margin-bottom: 0.75rem;
}
.hero h1 { font-size: var(--step-4); line-height: 1.08; margin: 0 0 0.5rem; max-width: 18ch; }
.hero__subtitle { font-size: var(--step-1); color: #e6eef4; max-width: 46ch; margin: 0 0 1rem; font-weight: 500; }
.hero__pitch { font-size: var(--step-0); color: #cdd9e3; max-width: 60ch; margin: 0 0 1.75rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }
.hero__stats { display: flex; gap: 2rem; margin-top: 2rem; flex-wrap: wrap; }
.hero__stat strong { display: block; font-size: var(--step-2); color: var(--c-accent); line-height: 1; }
.hero__stat span { font-size: var(--step--1); color: #cdd9e3; }

/* ---------- Sections ---------- */
.section { padding-block: clamp(2rem, 5vw, 3.5rem); }
.section--alt { background: var(--c-bg-alt); }
.section__title { font-size: var(--step-2); margin: 0 0 0.4rem; color: var(--c-primary); }
.section__lead { color: var(--c-ink-soft); max-width: 64ch; margin: 0 0 1.75rem; }

/* ---------- Module cards grid (home) ---------- */
.modules-grid {
  display: grid; gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
}
.module-card {
  display: flex; flex-direction: column; gap: 0.6rem;
  background: var(--c-bg); border: 1px solid var(--c-line);
  border-radius: var(--radius); padding: 1.35rem;
  box-shadow: var(--shadow-sm); text-decoration: none; color: inherit;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.module-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--c-primary); color: inherit; }
.module-card__top { display: flex; align-items: center; gap: 0.75rem; }
.module-card__num {
  flex: 0 0 auto; width: 42px; height: 42px; border-radius: 10px;
  display: grid; place-items: center; font-weight: 800; font-size: 1.1rem;
  background: var(--c-primary-050); color: var(--c-primary);
}
.module-card.is-complete .module-card__num { background: var(--c-success-border); color: #fff; }
.module-card__title { font-size: var(--step-1); font-weight: 700; color: var(--c-primary); margin: 0; }
.module-card__goal { color: var(--c-ink-soft); font-size: var(--step--1); margin: 0; flex: 1 1 auto; }
.module-card__meta { display: flex; align-items: center; justify-content: space-between; font-size: var(--step--1); color: var(--c-ink-soft); margin-top: 0.25rem; }
.progress-bar { height: 8px; border-radius: 999px; background: var(--c-primary-050); overflow: hidden; }
.progress-bar__fill { height: 100%; width: 0; background: var(--c-accent); transition: width 0.4s ease; }

/* ---------- App layout (módulos + lições) ---------- */
.app-layout { display: block; }
@media (min-width: 980px) {
  .app-layout {
    display: grid;
    grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
    align-items: start;
    gap: 0;
  }
}

/* ---------- Sidebar / índice ---------- */
.sidebar {
  background: var(--c-bg-alt);
  border-right: 1px solid var(--c-line);
}
@media (min-width: 980px) {
  .sidebar {
    position: sticky; top: 60px;
    height: calc(100vh - 60px); overflow-y: auto;
    padding: 1.25rem 1rem;
  }
}
@media (max-width: 979px) {
  .sidebar {
    display: none;
    padding: 1rem 1.25rem 1.5rem;
    border-right: 0; border-bottom: 1px solid var(--c-line);
  }
  .sidebar.is-open { display: block; }
}
.sidebar__heading {
  font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--c-ink-soft); margin: 0 0 0.5rem; font-weight: 700;
}
.toc { list-style: none; margin: 0 0 1.25rem; padding: 0; }
.toc__module > a {
  display: flex; align-items: center; gap: 0.5rem; justify-content: space-between;
  padding: 0.5rem 0.6rem; border-radius: var(--radius-sm);
  text-decoration: none; color: var(--c-primary); font-weight: 700;
  font-size: var(--step--1); min-height: 40px;
}
.toc__module > a:hover { background: var(--c-primary-050); }
.toc__module-num { color: var(--c-ink-soft); font-weight: 600; }
.toc__lessons { list-style: none; margin: 0.1rem 0 0.6rem; padding: 0 0 0 0.4rem; border-left: 2px solid var(--c-line); }
.toc__lessons a {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.35rem 0.6rem; border-radius: var(--radius-sm);
  text-decoration: none; color: var(--c-ink-soft); font-size: var(--step--1);
  min-height: 38px; line-height: 1.3;
}
.toc__lessons a:hover { background: var(--c-primary-050); color: var(--c-primary); }
.toc__lessons a[aria-current="page"] {
  background: var(--c-primary); color: #fff; font-weight: 600;
}
.toc__check { flex: 0 0 auto; width: 18px; height: 18px; }

/* ---------- Main content area ---------- */
.content { padding: 1.5rem 1.25rem 3rem; min-width: 0; }
@media (min-width: 980px) { .content { padding: 2rem 2.5rem 4rem; } }

.breadcrumb { font-size: var(--step--1); color: var(--c-ink-soft); margin-bottom: 1rem; }
.breadcrumb a { color: var(--c-ink-soft); }
.breadcrumb a:hover { color: var(--c-primary); }

/* ---------- Module overview page ---------- */
.module-head { border-bottom: 1px solid var(--c-line); padding-bottom: 1.25rem; margin-bottom: 1.5rem; }
.module-head__eyebrow { color: var(--c-accent-700); font-weight: 700; font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.08em; }
.module-head h1 { font-size: var(--step-3); color: var(--c-primary); margin: 0.25rem 0 0.5rem; }
.module-head__goal { color: var(--c-ink-soft); max-width: 64ch; }
.lesson-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.75rem; }
.lesson-list__item a {
  display: flex; align-items: center; gap: 0.9rem;
  padding: 1rem 1.1rem; border: 1px solid var(--c-line); border-radius: var(--radius);
  text-decoration: none; color: inherit; background: var(--c-bg);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.lesson-list__item a:hover { border-color: var(--c-primary); box-shadow: var(--shadow-sm); }
.lesson-list__num {
  flex: 0 0 auto; width: 40px; height: 40px; border-radius: 8px;
  display: grid; place-items: center; font-weight: 700;
  background: var(--c-primary-050); color: var(--c-primary); font-size: var(--step--1);
}
.lesson-list__item.is-complete .lesson-list__num { background: var(--c-success-border); color: #fff; }
.lesson-list__title { font-weight: 600; color: var(--c-primary); }
.lesson-list__badge { margin-left: auto; font-size: var(--step--1); color: var(--c-ink-soft); display: inline-flex; gap: 0.4rem; align-items: center; }

/* ---------- Lesson page ---------- */
.lesson { max-width: 72ch; }
.lesson__eyebrow { color: var(--c-accent-700); font-weight: 700; font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.08em; }
.lesson h1 { font-size: var(--step-3); color: var(--c-primary); margin: 0.25rem 0 1.25rem; line-height: 1.15; }
.lesson h2 { font-size: var(--step-1); color: var(--c-primary); margin: 2rem 0 0.75rem; }
.lesson p { margin: 0 0 1rem; }
.lesson strong { color: var(--c-ink); }

.card-block {
  background: var(--c-bg-alt); border: 1px solid var(--c-line);
  border-radius: var(--radius); padding: 1.1rem 1.25rem; margin: 1.25rem 0;
}
.card-block h2 { margin-top: 0; }
.objectives-list, .takeaways-list { margin: 0; padding-left: 1.25rem; }
.objectives-list li, .takeaways-list li { margin-bottom: 0.4rem; }
.takeaways { border-left: 4px solid var(--c-accent); }

.sources-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.sources-list li a {
  display: inline-flex; align-items: baseline; gap: 0.6rem;
  text-decoration: none; padding: 0.3rem 0;
}
.sources-list li a:hover .source-title { text-decoration: underline; }
.source-ep {
  flex: 0 0 auto; font-weight: 700; color: var(--c-primary-700);
  background: var(--c-primary-050); border-radius: 6px; padding: 0.1rem 0.5rem;
  font-size: var(--step--1);
}
.source-title { color: var(--c-ink); }
.sources-note { font-size: var(--step--1); color: var(--c-ink-soft); margin-top: 0.6rem; }

/* ---------- Tax warning callout ---------- */
.callout-tax {
  background: var(--c-warn-bg); border: 1px solid var(--c-warn-border);
  border-left-width: 5px; border-radius: var(--radius);
  padding: 1rem 1.2rem; margin: 1.5rem 0; color: var(--c-warn-ink);
}
.callout-tax__title { display: flex; align-items: center; gap: 0.5rem; font-weight: 700; margin: 0 0 0.4rem; color: var(--c-warn-ink); }
.callout-tax p { margin: 0; color: var(--c-warn-ink); }

/* ---------- Quiz ---------- */
.quiz {
  border: 2px solid var(--c-primary-050); border-radius: var(--radius);
  padding: 1.25rem; margin: 2rem 0 0;
}
.quiz__label { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--c-accent-700); font-weight: 700; font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 0.5rem; }
.quiz__question { font-weight: 600; font-size: var(--step-1); margin: 0 0 1rem; color: var(--c-primary); }
.quiz__options { display: grid; gap: 0.6rem; margin: 0 0 1rem; padding: 0; border: 0; }
.quiz__option {
  display: flex; align-items: flex-start; gap: 0.7rem;
  border: 1px solid var(--c-line); border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem; cursor: pointer; background: var(--c-bg);
  min-height: 46px; transition: border-color 0.12s ease, background 0.12s ease;
}
.quiz__option:hover { border-color: var(--c-primary); background: var(--c-primary-050); }
.quiz__option input { margin-top: 0.25rem; width: 18px; height: 18px; accent-color: var(--c-primary); flex: 0 0 auto; }
.quiz__option.is-correct { border-color: var(--c-success-border); background: var(--c-success-bg); }
.quiz__option.is-wrong { border-color: var(--c-error-border); background: var(--c-error-bg); }
.quiz__option .mark { margin-left: auto; font-weight: 700; }
.quiz__option.is-correct .mark { color: var(--c-success-ink); }
.quiz__option.is-wrong .mark { color: var(--c-error-ink); }
.quiz__feedback { border-radius: var(--radius-sm); padding: 0.85rem 1rem; margin-top: 0.5rem; display: none; }
.quiz__feedback.is-shown { display: block; }
.quiz__feedback.is-correct { background: var(--c-success-bg); color: var(--c-success-ink); border: 1px solid var(--c-success-border); }
.quiz__feedback.is-wrong { background: var(--c-error-bg); color: var(--c-error-ink); border: 1px solid var(--c-error-border); }
.quiz__feedback strong { color: inherit; }
.quiz__actions { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 0.5rem; }

/* ---------- Lesson footer nav + complete toggle ---------- */
.lesson-complete {
  display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap;
  background: var(--c-primary-050); border-radius: var(--radius);
  padding: 1rem 1.2rem; margin: 2rem 0 1.5rem;
}
.lesson-complete__label { font-weight: 600; color: var(--c-primary); }
.lesson-nav { display: flex; justify-content: space-between; gap: 0.75rem; border-top: 1px solid var(--c-line); padding-top: 1.25rem; }
.lesson-nav a {
  display: inline-flex; flex-direction: column; max-width: 48%;
  padding: 0.7rem 1rem; border: 1px solid var(--c-line); border-radius: var(--radius);
  text-decoration: none; color: var(--c-primary);
}
.lesson-nav a:hover { border-color: var(--c-primary); background: var(--c-primary-050); }
.lesson-nav .dir { font-size: var(--step--1); color: var(--c-ink-soft); }
.lesson-nav .ttl { font-weight: 600; }
.lesson-nav .next { text-align: right; margin-left: auto; }

/* ---------- Disclaimer / tax banner generic ---------- */
.disclaimer-banner {
  background: var(--c-primary-050); border: 1px solid var(--c-line);
  border-left: 5px solid var(--c-primary); border-radius: var(--radius);
  padding: 1rem 1.2rem; margin: 1.5rem 0; font-size: var(--step--1); color: var(--c-ink-soft);
}
.disclaimer-banner strong { color: var(--c-ink); }

/* ---------- Footer ---------- */
.site-footer { background: var(--c-primary); color: #e6eef4; margin-top: 2rem; }
.site-footer__inner { padding-block: 2.25rem; display: grid; gap: 1.5rem; }
.site-footer a { color: #fff; }
.footer-attrib { font-size: var(--step--1); line-height: 1.6; }
.footer-attrib strong { color: #fff; }
.footer-attrib__headline { font-weight: 700; color: #fff; font-size: var(--step-0); margin: 0 0 0.4rem; }
.footer-platforms { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 0.6rem; }
.footer-disclaimer { font-size: 0.8rem; color: #b7c6d2; border-top: 1px solid rgba(255,255,255,0.18); padding-top: 1.25rem; }
.footer-disclaimer strong { color: #e6eef4; }
.footer-bottom { font-size: 0.8rem; color: #9fb2c0; }

/* ---------- Reset progress control ---------- */
.reset-progress { background: none; border: 0; color: inherit; text-decoration: underline; cursor: pointer; font: inherit; padding: 0; }
.reset-progress:hover { color: var(--c-accent); }

/* ---------- Utility ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: var(--step--1); font-weight: 600; border-radius: 999px;
  padding: 0.15rem 0.6rem; background: var(--c-primary-050); color: var(--c-primary);
}
.tag--quiz { background: var(--c-warn-bg); color: var(--c-warn-ink); }
.check-icon { color: var(--c-success-border); }