/* ==========================================================================
   MFlux — landing page
   Paleta extraída do logo: azul #3C5191, texto #353A40, fundo #F7F7F7.
   ========================================================================== */

:root {
  --brand:        #3C5191;
  --brand-dark:   #2E3F72;
  --brand-light:  #5A6EAE;
  --brand-wash:   #EEF1F8;
  --ink:          #353A40;
  --ink-soft:     #5B626B;
  --ink-faint:    #858C95;
  --bg:           #FFFFFF;
  --bg-alt:       #F7F7F7;
  --line:         #E3E5EA;

  --wrap:         1120px;
  --wrap-narrow:  760px;
  --radius:       14px;
  --radius-lg:    20px;
  --shadow:       0 1px 2px rgba(53, 58, 64, .04), 0 8px 24px rgba(53, 58, 64, .06);
  --shadow-lg:    0 2px 4px rgba(53, 58, 64, .05), 0 18px 48px rgba(53, 58, 64, .10);
  --ease:         cubic-bezier(.4, 0, .2, 1);

  --font: "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, system-ui, sans-serif;
}

/* --------------------------------- reset -------------------------------- */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0 0 .5em; line-height: 1.2; letter-spacing: -.02em; font-weight: 700; }
p  { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.25em; }
img, svg { max-width: 100%; }

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

:focus-visible {
  outline: 3px solid var(--brand-light);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--brand); color: #fff; padding: .75rem 1rem; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* -------------------------------- layout -------------------------------- */

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 24px; }
.wrap-narrow { max-width: var(--wrap-narrow); }

.section { padding: 84px 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--line); }

.section-head { max-width: 640px; margin: 0 auto 48px; text-align: center; }
.section-head h2 { font-size: clamp(1.6rem, 3.6vw, 2.15rem); }
.section-head p { color: var(--ink-soft); margin: 0; }

.eyebrow {
  font-size: .8rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  color: var(--brand); margin: 0 0 1rem;
}

/* -------------------------------- header -------------------------------- */

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner { display: flex; align-items: center; gap: 24px; min-height: 68px; }

.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand-mark { display: block; width: 30px; color: var(--brand); }
.brand-mark svg { display: block; width: 100%; height: auto; }
.brand-name { font-size: 1.25rem; font-weight: 700; letter-spacing: -.02em; }

.site-nav { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.site-nav a {
  color: var(--ink-soft); font-size: .95rem; font-weight: 500;
  padding: .5rem .7rem; border-radius: 8px; transition: color .15s var(--ease), background .15s var(--ease);
}
.site-nav a:hover { color: var(--ink); background: var(--bg-alt); text-decoration: none; }
.site-nav .nav-cta {
  background: var(--brand); color: #fff; padding: .55rem 1.05rem; margin-left: 6px;
}
.site-nav .nav-cta:hover { background: var(--brand-dark); color: #fff; }

/* burger (CSS-only, sem JS) */
.nav-toggle { display: none; }
.nav-burger {
  display: none; margin-left: auto; cursor: pointer;
  width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--line);
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-burger span {
  display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px;
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}

/* -------------------------------- botões -------------------------------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .8rem 1.5rem; border-radius: 10px; border: 1px solid transparent;
  font-size: 1rem; font-weight: 600; line-height: 1.2; cursor: pointer;
  transition: background .18s var(--ease), border-color .18s var(--ease),
              color .18s var(--ease), transform .18s var(--ease);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--brand); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--brand-dark); color: #fff; }

.btn-ghost { background: #fff; color: var(--brand); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--brand); background: var(--brand-wash); }

/* --------------------------------- hero --------------------------------- */

.hero {
  position: relative; overflow: hidden;
  padding: clamp(64px, 10vw, 116px) 0 clamp(56px, 8vw, 92px);
  background:
    radial-gradient(72rem 34rem at 50% -22%, var(--brand-wash) 0%, rgba(238, 241, 248, 0) 62%),
    var(--bg);
}
.hero-inner { max-width: 800px; margin-inline: auto; text-align: center; }
.hero h1 {
  font-size: clamp(2rem, 5.4vw, 3.35rem);
  letter-spacing: -.03em;
  margin-bottom: 1rem;
}
.hero-lead {
  font-size: clamp(1.02rem, 1.7vw, 1.16rem);
  color: var(--ink-soft);
  max-width: 620px; margin: 0 auto 2rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

/* -------------------------- faixa de confiança -------------------------- */

.trust { background: var(--bg-alt); border-block: 1px solid var(--line); padding: 34px 0; }
.trust-list {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 14px 28px;
  grid-template-columns: repeat(auto-fit, minmax(228px, 1fr));
}
.trust-list li {
  position: relative; padding-left: 30px;
  font-size: .95rem; color: var(--ink-soft);
}
.trust-list li::before {
  content: ""; position: absolute; left: 0; top: .28em;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--brand) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center / 11px no-repeat;
}

/* --------------------------------- cards -------------------------------- */

.cards { display: grid; gap: 24px; }
.cards-3 { grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); }
.cards-4 { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: #D5D9E4; }
.card h3 { font-size: 1.12rem; }
.card p  { color: var(--ink-soft); font-size: .96rem; margin: 0; }

.card-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; margin-bottom: 16px;
  border-radius: 11px; background: var(--brand-wash); color: var(--brand);
}
.card-icon svg { width: 22px; height: 22px; }

/* variante sem sombra, usada nos blocos de texto */
.card-plain { box-shadow: none; }
.card-plain:hover { transform: none; box-shadow: var(--shadow); }

/* -------------------------------- passos -------------------------------- */

.steps {
  list-style: none; margin: 0 auto; padding: 0; max-width: 780px;
  display: grid; gap: 8px;
}
.step { display: flex; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.step:last-child { border-bottom: 0; }
.step-num {
  flex: 0 0 auto;
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--brand); color: #fff;
  font-weight: 700; font-size: 1rem;
}
.step-body h3 { font-size: 1.1rem; margin-bottom: .3em; }
.step-body p  { color: var(--ink-soft); font-size: .96rem; margin: 0; }

/* ---------------------------------- faq --------------------------------- */

.faq { display: grid; gap: 12px; }
.faq details {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 4px 22px; transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.faq details[open] { border-color: #D5D9E4; box-shadow: var(--shadow); }
.faq summary {
  list-style: none; cursor: pointer; padding: 16px 34px 16px 0; position: relative;
  font-weight: 600; color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 0; top: 50%;
  width: 11px; height: 11px; margin-top: -6px;
  border-right: 2.5px solid var(--brand); border-bottom: 2.5px solid var(--brand);
  transform: rotate(45deg); transform-origin: center;
  transition: transform .2s var(--ease);
}
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
.faq details p { color: var(--ink-soft); font-size: .96rem; margin: 0 0 16px; }

/* ---------------------------------- cta --------------------------------- */

.cta { padding: 88px 0; background: var(--brand); color: #fff; }
.cta-inner { text-align: center; }
.cta h2 { font-size: clamp(1.6rem, 3.6vw, 2.15rem); color: #fff; }
.cta p  { color: rgba(255, 255, 255, .85); margin-bottom: 1.8rem; }
.cta .btn-primary { background: #fff; color: var(--brand); }
.cta .btn-primary:hover { background: var(--brand-wash); color: var(--brand-dark); }
.cta .btn-ghost {
  background: transparent; color: #fff; border-color: rgba(255, 255, 255, .45);
}
.cta .btn-ghost:hover { background: rgba(255, 255, 255, .12); border-color: #fff; color: #fff; }

/* -------------------------------- legal --------------------------------- */

.legal-hero {
  padding: clamp(48px, 7vw, 76px) 0 clamp(32px, 4vw, 44px);
  background:
    radial-gradient(60rem 26rem at 50% -30%, var(--brand-wash) 0%, rgba(238, 241, 248, 0) 60%),
    var(--bg);
  border-bottom: 1px solid var(--line);
  text-align: center;
}
.legal-hero h1 { font-size: clamp(1.9rem, 4.6vw, 2.7rem); margin-bottom: .4rem; }
.legal-meta { color: var(--ink-faint); font-size: .92rem; margin: 0; }

.legal { font-size: 1rem; }
.legal-intro {
  color: var(--ink-soft);
  padding: 20px 22px; margin-bottom: 40px;
  background: var(--bg-alt); border-left: 3px solid var(--brand); border-radius: 0 8px 8px 0;
}
.legal h2 {
  font-size: 1.24rem; margin-top: 2.4em; padding-top: 1.4em;
  border-top: 1px solid var(--line);
}
.legal h2:first-of-type { margin-top: 0; padding-top: 0; border-top: 0; }
.legal p, .legal li { color: var(--ink-soft); }
.legal ul { padding-left: 1.15em; }
.legal li { margin-bottom: .5em; }
.legal li::marker { color: var(--brand); }
.legal strong { color: var(--ink); }

.legal-contact { list-style: none; padding: 0; }
.legal-contact li { margin-bottom: .35em; }

.legal-copy {
  margin-top: 3em; padding-top: 1.6em; border-top: 1px solid var(--line);
  color: var(--ink-faint); font-size: .9rem;
}
.legal-back { margin-top: 2em; }

/* -------------------------------- footer -------------------------------- */

.site-footer { background: var(--bg-alt); border-top: 1px solid var(--line); padding: 56px 0 0; }
.footer-inner {
  display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; align-items: flex-start;
  padding-bottom: 40px;
}
.footer-brand { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; max-width: 420px; }
.brand-mark--footer { width: 26px; color: var(--brand); }
.footer-brand .brand-name { font-size: 1.15rem; font-weight: 700; }
.footer-tagline { flex: 1 0 100%; margin: 0; color: var(--ink-faint); font-size: .9rem; }

.footer-links { display: flex; flex-wrap: wrap; gap: 8px 24px; align-items: center; }
.footer-links a { color: var(--ink-soft); font-size: .92rem; }
.footer-links a:hover { color: var(--brand); }

.footer-legal { border-top: 1px solid var(--line); padding-block: 22px; }
.footer-legal p { margin: 0; color: var(--ink-faint); font-size: .86rem; }

/* ------------------------------ responsivo ------------------------------ */

@media (max-width: 860px) {
  .nav-burger { display: flex; }

  .site-nav {
    position: fixed; inset: 68px 0 auto; z-index: 40;
    margin-left: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    padding: 12px 16px 20px;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    /* fechado por padrão */
    transform: translateY(-8px);
    opacity: 0; visibility: hidden; pointer-events: none;
    transition: opacity .18s var(--ease), transform .18s var(--ease), visibility .18s;
  }
  .nav-toggle:checked ~ .site-nav {
    transform: translateY(0);
    opacity: 1; visibility: visible; pointer-events: auto;
  }
  .site-nav a { padding: .8rem .6rem; font-size: 1rem; border-radius: 8px; }
  .site-nav .nav-cta { margin: 8px 0 0; text-align: center; }

  .nav-toggle:checked ~ .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle:checked ~ .nav-burger span:nth-child(2) { opacity: 0; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .section { padding: 60px 0; }
  .section-head { margin-bottom: 34px; }
  .wrap { padding-inline: 20px; }
  .hero h1 br { display: none; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .cta { padding: 64px 0; }
  .card { padding: 24px; }
  .step { gap: 14px; }
  .footer-inner { flex-direction: column; gap: 24px; }
  .footer-links { flex-direction: column; align-items: flex-start; gap: 10px; }
}

/* -------------------------------- print --------------------------------- */

@media print {
  .site-header, .site-footer, .legal-back, .skip-link { display: none; }
  body { font-size: 12pt; color: #000; }
  .legal-hero { padding: 0 0 12pt; border: 0; text-align: left; }
  .section { padding: 0; }
  a { color: #000; text-decoration: underline; }
}