/* =========================================================
   Luciano Stein — Landing institucional
   Design sóbrio, autoridade cristã-empreendedora.
   Mobile-first. Sem dependências externas. System font stack.
   ========================================================= */

:root {
  /* Paleta */
  --ink:        #12182a; /* navy profundo (fundo escuro/ hero) */
  --ink-2:      #0d121f; /* mais escuro (footer/CTA final) */
  --ink-soft:   #1c2338; /* superfícies elevadas no escuro */
  --paper:      #f7f4ee; /* off-white base */
  --paper-2:    #efe9df; /* off-white alt (superfícies claras) */
  --text:       #23293a; /* corpo sobre claro */
  --text-soft:  #55596a; /* secundário sobre claro */
  --text-inv:   #ece7dd; /* corpo sobre escuro */
  --text-inv-soft: #a9adba;
  --gold:       #b8912f; /* âmbar/dourado discreto — acento de valor */
  --gold-soft:  #cbab5c;
  --line:       #ddd4c4; /* divisórias sobre claro */
  --line-dark:  #2b3350; /* divisórias sobre escuro */

  --maxw: 1160px;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --radius: 4px;

  --serif: 'Iowan Old Style', 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, 'Times New Roman', serif;
  --sans: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --shadow: 0 18px 50px -24px rgba(10, 14, 25, .45);
}

/* ---------- Reset leve ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  line-height: 1.65;
  color: var(--text);
  background: var(--paper);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.12; letter-spacing: -0.01em; margin: 0; }
p { margin: 0 0 1.1rem; }
em { font-style: italic; }

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

/* ---------- Acessibilidade ---------- */
.skip-link {
  position: absolute; left: 0; top: -100%;
  background: var(--gold); color: var(--ink);
  padding: .7rem 1.1rem; z-index: 200; font-weight: 600;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { top: 0; }

:where(a, button, [tabindex]):focus-visible {
  outline: 2.5px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); }

.eyebrow {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .74rem;
  font-weight: 700;
  color: var(--gold);
  margin: 0 0 .8rem;
}
.section-head { max-width: 42rem; margin-bottom: clamp(2rem, 5vw, 3rem); }
.section-head h2, .about-intro h2 { font-size: clamp(1.8rem, 1.2rem + 2.6vw, 2.9rem); }

/* ---------- Botões ---------- */
.btn {
  display: inline-block;
  font-family: var(--sans);
  font-weight: 600;
  font-size: .96rem;
  line-height: 1.25;
  text-decoration: none;
  padding: .95rem 1.6rem;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  transition: transform .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease, box-shadow .18s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--gold); color: var(--ink-2);
  box-shadow: 0 12px 26px -14px rgba(184,145,47,.8);
}
.btn-primary:hover { background: var(--gold-soft); transform: translateY(-2px); }
.btn-ghost { color: var(--text-inv); border-color: rgba(236,231,221,.35); }
.btn-ghost:hover { border-color: var(--gold); color: #fff; transform: translateY(-2px); }
.btn-outline { color: var(--text); border-color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--text-inv); transform: translateY(-2px); }
@media (prefers-reduced-motion: reduce) { .btn:hover { transform: none; } }

.cta-row { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 1.6rem; }
.cta-center { justify-content: center; }
.microcopy { font-size: .85rem; color: var(--text-soft); margin-top: .8rem; }

.link-arrow { color: var(--gold); font-weight: 600; text-decoration: none; }
.link-arrow:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(18,24,42,.92);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line-dark);
  color: var(--text-inv);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 1rem; }
.brand { text-decoration: none; display: flex; flex-direction: column; line-height: 1.05; color: var(--text-inv); }
.brand-name { font-family: var(--serif); font-size: 1.22rem; font-weight: 600; letter-spacing: .01em; }
.brand-tag { font-size: .68rem; letter-spacing: .13em; text-transform: uppercase; color: var(--gold-soft); margin-top: .18rem; }

.primary-nav ul { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: 1.6rem; }
.primary-nav a { text-decoration: none; font-size: .92rem; font-weight: 500; color: var(--text-inv-soft); transition: color .15s; }
.primary-nav a:hover { color: #fff; }
.nav-cta {
  color: var(--gold-soft) !important; border: 1.5px solid rgba(203,171,92,.5);
  padding: .5rem 1rem; border-radius: var(--radius);
}
.nav-cta:hover { background: var(--gold); color: var(--ink-2) !important; border-color: var(--gold); }

.nav-toggle {
  display: none;
  width: 44px; height: 44px; padding: 0;
  background: transparent; border: 1px solid var(--line-dark);
  border-radius: var(--radius); cursor: pointer; position: relative;
}
.nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after {
  content: ""; position: absolute; left: 50%; top: 50%;
  width: 20px; height: 2px; background: var(--text-inv);
  transform: translate(-50%, -50%); transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle-bar::before { transform: translate(-50%, -7px); }
.nav-toggle-bar::after  { transform: translate(-50%, 5px); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translate(-50%, -50%) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after  { transform: translate(-50%, -50%) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(120% 80% at 85% -10%, rgba(184,145,47,.14), transparent 55%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
  color: var(--text-inv);
  padding-block: clamp(3rem, 8vw, 6rem);
  border-bottom: 1px solid var(--line-dark);
}
.hero-grid { display: grid; gap: clamp(2.2rem, 5vw, 4rem); align-items: center; }
.kicker {
  font-size: .8rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--gold-soft); font-weight: 700; margin: 0 0 1.2rem;
}
.display { font-family: var(--serif); }
.hero h1 { font-size: clamp(2.1rem, 1.2rem + 4.4vw, 3.7rem); letter-spacing: -0.02em; }
.lede {
  font-size: clamp(1.05rem, 1rem + 0.5vw, 1.28rem);
  color: var(--text-inv-soft); max-width: 40ch; margin-top: 1.4rem;
}
.hero .lede { color: #c8ccd8; }

/* ---------- Placeholders visuais ---------- */
.ph {
  margin: 0;
  display: grid; place-content: center; gap: .5rem; text-align: center;
  border-radius: var(--radius);
  border: 1px dashed rgba(203,171,92,.55);
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,.03) 0 12px, transparent 12px 24px),
    linear-gradient(160deg, #223 0%, #1a2033 100%);
  color: var(--text-inv-soft);
  padding: 1.5rem;
  position: relative;
}
.ph-label { font-family: var(--sans); font-weight: 700; letter-spacing: .1em; font-size: .78rem; color: var(--gold-soft); text-transform: uppercase; }
.ph-dim   { font-size: .72rem; letter-spacing: .06em; color: var(--text-inv-soft); }
.ph-portrait, .portrait-img { aspect-ratio: 4 / 5; width: 100%; max-width: 420px; margin-inline: auto; box-shadow: var(--shadow); }
.ph-book, .book-img { aspect-ratio: 2 / 3; width: 100%; max-width: 340px; margin-inline: auto; box-shadow: var(--shadow); }
.portrait-img, .book-img { object-fit: cover; border-radius: var(--radius); }
.ph-wide { aspect-ratio: 3 / 2; width: 100%; }

/* ---------- Sobre ---------- */
.section-about { background: var(--paper); }
.about-grid { display: grid; gap: clamp(1.6rem, 4vw, 2.6rem); }
.about-intro h2 { margin-top: .3rem; }
.about-body { max-width: 60ch; }
.about-body em { color: var(--text); }
.about-closer { font-family: var(--serif); font-size: 1.2rem; color: var(--ink); border-left: 3px solid var(--gold); padding-left: 1.1rem; }
.badges {
  list-style: none; margin: .5rem 0 0; padding: 0;
  display: grid; gap: .7rem; grid-template-columns: 1fr;
}
.badges li {
  background: var(--paper-2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: .9rem 1.1rem;
  font-size: .95rem; color: var(--text-soft);
}
.badges strong { color: var(--ink); }

/* ---------- Pilares ---------- */
.section-pillars { background: var(--paper-2); border-block: 1px solid var(--line); }
.pillars { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.1rem; grid-template-columns: 1fr; counter-reset: none; }
.pillar {
  background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.6rem 1.5rem 1.7rem;
  position: relative; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.pillar:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--gold-soft); }
@media (prefers-reduced-motion: reduce) { .pillar:hover { transform: none; } }
.pillar-num {
  font-family: var(--serif); font-size: 1.5rem; font-weight: 600;
  color: var(--gold); display: block; margin-bottom: .5rem;
}
.pillar h3 { font-size: 1.3rem; margin-bottom: .3rem; color: var(--ink); }
.pillar .ref {
  font-family: var(--sans); text-transform: uppercase; letter-spacing: .12em;
  font-size: .7rem; font-weight: 700; color: var(--gold); margin: 0 0 .8rem;
}
.pillar p:last-child { margin: 0; color: var(--text-soft); }

/* ---------- Livro ---------- */
.section-book { background: var(--ink); color: var(--text-inv); }
.book-grid { display: grid; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.section-book h2 { font-size: clamp(1.8rem, 1.2rem + 2.6vw, 2.8rem); color: #fff; margin-bottom: 1.1rem; }
.section-book .eyebrow { color: var(--gold-soft); }
.section-book p { color: #c8ccd8; }
.checks { list-style: none; margin: 1.4rem 0 0; padding: 0; display: grid; gap: .8rem; }
.checks li { position: relative; padding-left: 2rem; color: var(--text-inv-soft); }
.checks li::before {
  content: ""; position: absolute; left: 0; top: .35em;
  width: 1.05rem; height: 1.05rem; border-radius: 50%;
  background: var(--gold); mask: none;
  box-shadow: inset 0 0 0 2px var(--ink);
}
.checks li::after {
  content: ""; position: absolute; left: .32rem; top: .55em;
  width: .42rem; height: .22rem; border-left: 2px solid var(--ink); border-bottom: 2px solid var(--ink);
  transform: rotate(-45deg);
}
.section-book .microcopy { color: var(--text-inv-soft); }

/* ---------- Produtos ---------- */
.section-products { background: var(--paper-2); border-block: 1px solid var(--line); }
.products-grid { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.1rem; grid-template-columns: 1fr; }
.product-card {
  background: var(--ink); color: var(--text-inv);
  border: 1px solid var(--line-dark); border-top: 3px solid var(--gold);
  border-radius: var(--radius); padding: 1.7rem 1.5rem;
  display: flex; flex-direction: column; gap: .7rem;
  transition: transform .2s ease, box-shadow .2s ease;
}
.product-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
@media (prefers-reduced-motion: reduce) { .product-card:hover { transform: none; } }
.product-card.featured { box-shadow: 0 0 0 1px rgba(184,145,47,.35); }
.product-eyebrow { font-family: var(--sans); text-transform: uppercase; letter-spacing: .14em; font-size: .7rem; font-weight: 700; color: var(--gold-soft); margin: 0; }
.product-card h3 { font-family: var(--serif); font-size: 1.22rem; color: #fff; margin: 0; }
.product-card p:not(.product-eyebrow) { color: var(--text-inv-soft); font-size: .92rem; margin: 0; flex-grow: 1; }
.product-card .btn { align-self: flex-start; margin-top: .3rem; }

/* ---------- Comunidade ---------- */
.section-community { background: var(--paper); }
.community-grid { display: grid; gap: clamp(2rem, 5vw, 3.5rem); align-items: center; }
.community-copy h2 { font-size: clamp(1.8rem, 1.2rem + 2.6vw, 2.8rem); color: var(--ink); margin-bottom: 1.1rem; }
.community-copy strong { color: var(--ink); }

/* ---------- Prova social ---------- */
.section-proof { background: var(--paper-2); border-block: 1px solid var(--line); }
.stats {
  list-style: none; margin: 0 0 clamp(2.5rem, 6vw, 4rem); padding: 0;
  display: grid; gap: 1rem; grid-template-columns: 1fr;
}
.stats li {
  background: var(--paper); border: 1px solid var(--line); border-top: 3px solid var(--gold);
  border-radius: var(--radius); padding: 1.4rem 1.3rem; text-align: center;
}
.stat-num { display: block; font-family: var(--serif); font-size: clamp(2rem, 1.4rem + 2.4vw, 2.8rem); font-weight: 600; color: var(--ink); line-height: 1; }
.stat-label { display: block; margin-top: .6rem; font-size: .88rem; color: var(--text-soft); }

.testi-title { font-size: 1.35rem; color: var(--ink); margin-bottom: 1.3rem; text-align: center; }
.testi-grid { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.1rem; grid-template-columns: 1fr; }
.testi {
  background: var(--paper); border: 1px dashed var(--line);
  border-radius: var(--radius); padding: 1.5rem 1.4rem;
}
.ph-testi { border-color: rgba(184,145,47,.5); }
.testi-avatar {
  width: 52px; height: 52px; border-radius: 50%;
  background: linear-gradient(150deg, var(--paper-2), #d9cfbb);
  border: 1px dashed var(--gold-soft); margin-bottom: 1rem;
}
.testi-role { font-weight: 700; font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; color: var(--gold); margin: 0 0 .6rem; }
.testi-ph { color: var(--text-soft); font-size: .95rem; margin: 0; }
.testi-ph small { color: #8a8e9c; font-size: .8rem; }

/* ---------- CTA final ---------- */
.section-final {
  background:
    radial-gradient(120% 90% at 50% -20%, rgba(184,145,47,.16), transparent 60%),
    linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 100%);
  color: var(--text-inv); text-align: center;
}
.final-inner { max-width: 46rem; margin-inline: auto; }
.section-final h2 { font-size: clamp(1.9rem, 1.2rem + 3vw, 3rem); color: #fff; }
.section-final .lede { margin-inline: auto; color: #c8ccd8; }
.blessing {
  font-family: var(--serif); font-style: italic; font-size: clamp(1.5rem, 1.2rem + 1.5vw, 2rem);
  color: var(--gold-soft); margin-top: 2.8rem; margin-bottom: 0;
}
.blessing-sig { display: block; font-style: normal; font-size: .95rem; letter-spacing: .06em; color: var(--text-inv-soft); margin-top: .5rem; font-family: var(--sans); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink-2); color: var(--text-inv-soft); padding-block: clamp(2.5rem, 5vw, 3.5rem); border-top: 1px solid var(--line-dark); }
.footer-inner { display: grid; gap: 1.6rem; }
.footer-brand { display: flex; flex-direction: column; }
.footer-brand .brand-name { color: var(--text-inv); }
.footer-brand .brand-tag { color: var(--gold-soft); font-size: .7rem; letter-spacing: .13em; text-transform: uppercase; margin-top: .2rem; }
.footer-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem 1.6rem; }
.footer-nav a { text-decoration: none; color: var(--text-inv-soft); font-size: .92rem; transition: color .15s; }
.footer-nav a:hover { color: var(--gold-soft); }
.footer-legal { font-size: .82rem; color: #6a6f7e; margin: 0; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* =========================================================
   BREAKPOINTS
   ========================================================= */

/* --- Mobile: menu colapsado (< 860px) --- */
@media (max-width: 859px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .primary-nav {
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--ink); border-bottom: 1px solid var(--line-dark);
    display: none; padding: 1rem var(--gutter) 1.4rem;
  }
  .primary-nav.open { display: block; }
  .primary-nav ul { flex-direction: column; align-items: stretch; gap: .2rem; }
  .primary-nav li { border-bottom: 1px solid var(--line-dark); }
  .primary-nav li:last-child { border-bottom: 0; }
  .primary-nav a { display: block; padding: .85rem .2rem; font-size: 1rem; }
  .nav-cta { display: inline-block; margin-top: .8rem; text-align: center; }
}

/* --- Tablet (≥ 680px) --- */
@media (min-width: 680px) {
  .badges { grid-template-columns: 1fr 1fr; }
  .pillars { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .testi-grid { grid-template-columns: repeat(3, 1fr); }
  .products-grid { grid-template-columns: 1fr 1fr; }
}

/* --- Desktop (≥ 960px) --- */
@media (min-width: 960px) {
  .hero-grid { grid-template-columns: 1.35fr 1fr; }
  .about-grid { grid-template-columns: 1fr 1.15fr; grid-template-areas: "intro body" "badges body"; align-items: start; }
  .about-intro { grid-area: intro; }
  .about-body  { grid-area: body; }
  .badges      { grid-area: badges; align-self: start; }
  .pillars { grid-template-columns: repeat(4, 1fr); }
  .book-grid { grid-template-columns: .8fr 1.2fr; }
  .community-grid { grid-template-columns: 1.1fr 1fr; }
  .stats { grid-template-columns: repeat(4, 1fr); }
  .products-grid { grid-template-columns: repeat(4, 1fr); }
  .footer-inner { grid-template-columns: 1fr auto; align-items: center; grid-template-areas: "brand nav" "legal legal"; }
  .footer-brand { grid-area: brand; }
  .footer-nav { grid-area: nav; }
  .footer-legal { grid-area: legal; }
}