@font-face { font-family: "Fraunces"; src: url("fraunces-latin-wght-normal.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: "Fraunces"; src: url("fraunces-latin-wght-italic.woff2") format("woff2"); font-weight: 100 900; font-style: italic; font-display: swap; }

/* Fraunces é a fonte da capa e do miolo do e-book: o site usa a mesma identidade. */

/* Tema claro (padrão) */
:root {
  color-scheme: light;
  --bg: #f3ead8; --band: #eadfc7; --card: #faf5e9; --input: #fffdf8;
  --heading: #0f3d34; --ink: #2a2f2b; --muted: #555c53; --line: #d3c5a8;
  --terra: #a8492a; --gold: #d9a441; --on-gold: #2a2005;
  --hero: #0f3d34; --hero-ink: #d7e6df; --hero-muted: #a9c4b9; --hero-title: #f7f2e8;
  --shadow: rgba(42, 47, 43, .18);
  --notice-bg: #f1d9c8; --notice-ink: #7a3319;
}
/* Tema escuro: escolhido no botão ou herdado do sistema */
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111a17; --band: #16221e; --card: #1c2a25; --input: #142019;
  --heading: #efe6d2; --ink: #dde2db; --muted: #a6b0a8; --line: #2e3d37;
  --terra: #e3916b; --hero: #0b2b25;
  --shadow: rgba(0, 0, 0, .45);
  --notice-bg: #3a241a; --notice-ink: #f3c6ad;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #111a17; --band: #16221e; --card: #1c2a25; --input: #142019;
    --heading: #efe6d2; --ink: #dde2db; --muted: #a6b0a8; --line: #2e3d37;
    --terra: #e3916b; --hero: #0b2b25;
    --shadow: rgba(0, 0, 0, .45);
    --notice-bg: #3a241a; --notice-ink: #f3c6ad;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; transition: background-color .2s, color .2s; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 72px 20px; }
.wrap.narrow { max-width: 720px; }
h1, h2, h3 { font-family: "Fraunces", Georgia, serif; font-weight: 600; line-height: 1.1; margin: 0; color: var(--heading); letter-spacing: -.01em; }
h1 { font-size: clamp(36px, 5.6vw, 58px); color: var(--hero-title); line-height: 1.08; }
h1 em { color: var(--gold); font-weight: 400; }
h2 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 14px; }
h3 { font-size: 24px; }
.kicker { font-size: 12px; letter-spacing: .2em; text-transform: uppercase; font-weight: 700; color: var(--gold); margin: 0 0 14px; }
.kicker.dark { color: var(--terra); }
.sub { max-width: 620px; color: var(--muted); margin: 0 0 32px; }
.micro { font-size: 14px; color: var(--muted); margin: 14px 0 0; }
.center { text-align: center; }

/* Barra do topo */
.topbar { background: var(--hero); }
.topbar .wrap, .page-top .wrap { padding-top: 14px; padding-bottom: 0; display: flex; align-items: center; justify-content: space-between; }
.brand { font-family: "Fraunces", Georgia, serif; font-weight: 600; font-size: 20px; color: var(--hero-title); text-decoration: none; }
.theme-btn { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 50%; border: 1.5px solid rgba(247, 242, 232, .35); background: transparent; color: var(--hero-title); cursor: pointer; transition: background-color .15s, transform .12s; }
.theme-btn:hover { background: rgba(247, 242, 232, .1); }
.theme-btn:active { transform: scale(.96); }
.theme-btn:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }
.theme-btn svg { width: 22px; height: 22px; }
.theme-btn .ic-sun { display: none; }
:root[data-theme="dark"] .theme-btn .ic-sun { display: block; }
:root[data-theme="dark"] .theme-btn .ic-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-btn .ic-sun { display: block; }
  :root:not([data-theme="light"]) .theme-btn .ic-moon { display: none; }
}
.page-top { background: transparent; }
.page-top .wrap { padding-bottom: 0; }
.page-top .brand { color: var(--heading); }
.page-top .theme-btn { color: var(--heading); border-color: var(--line); }
.page-top .theme-btn:hover { background: var(--card); }

/* Hero */
.hero { background: var(--hero); color: var(--hero-ink); }
.hero .wrap { padding-top: 40px; padding-bottom: 64px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero .lead { font-size: 19px; max-width: 500px; margin: 22px 0 30px; }
.cover img { width: min(320px, 100%); margin: 0 auto; border-radius: 6px; box-shadow: 0 24px 60px rgba(0, 0, 0, .45); transform: rotate(2deg); }

.btn { display: inline-block; background: var(--gold); color: var(--on-gold); font: inherit; font-weight: 700; padding: 15px 28px; border-radius: 40px; border: 2px solid var(--gold); text-decoration: none; cursor: pointer; transition: transform .12s, background-color .15s; white-space: nowrap; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 3px solid var(--heading); outline-offset: 3px; }
.hero .btn:focus-visible { outline-color: var(--hero-title); }
.btn.ghost { background: transparent; color: var(--heading); border-color: var(--heading); }
.btn.ghost:hover { background: var(--band); }
.btn[disabled] { opacity: .65; cursor: wait; }

/* Prévia das páginas */
.preview { display: flex; gap: 16px; overflow-x: auto; padding: 6px 2px 18px; scroll-snap-type: x mandatory; }
.preview img { width: 250px; flex: none; border-radius: 6px; box-shadow: 0 6px 22px var(--shadow); scroll-snap-align: start; }

/* O que tem no e-book */
.band { background: var(--band); }
.points { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 56px; margin: 8px 0 44px; }
.points h3 { font-size: 21px; line-height: 1.2; }
.points p { margin: 6px 0 0; color: var(--muted); }
.learn { background: var(--card); border-radius: 14px; padding: 26px 28px; }
.learn h3 { font-size: 20px; margin-bottom: 12px; }
.list { columns: 2; gap: 40px; padding: 0; margin: 0; list-style: none; }
.list li { padding: 6px 0 6px 28px; position: relative; break-inside: avoid; }
.list li::before { content: "✓"; position: absolute; left: 2px; color: var(--terra); font-weight: 700; }

/* Planilha */
.sheet { display: grid; grid-template-columns: 1.25fr 1fr; gap: 40px; align-items: start; }
.shot { border-radius: 10px; border: 6px solid var(--card); box-shadow: 0 10px 34px var(--shadow); }
.features { display: grid; gap: 20px; margin: 0; }
.features div { border-top: 1px solid var(--line); padding-top: 14px; }
.features dt { font-family: "Fraunces", Georgia, serif; font-weight: 600; font-size: 19px; color: var(--heading); line-height: 1.25; }
.features dd { margin: 4px 0 0; color: var(--muted); font-size: 16px; }
.sheet-2 { margin-top: 40px; }

/* Preços */
.offers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 30px; align-items: stretch; }
.offer { background: var(--card); border-radius: 14px; padding: 30px 24px 24px; display: flex; flex-direction: column; position: relative; border: 2px solid transparent; }
.offer.best { background: var(--hero); color: var(--hero-ink); border-color: var(--gold); }
.offer.best h3 { color: var(--hero-title); }
.offer.best .btn:focus-visible { outline-color: var(--hero-title); }
.offer .tag { position: absolute; top: -13px; left: 20px; background: var(--gold); color: var(--on-gold); font-size: 13px; font-weight: 700; padding: 4px 12px; border-radius: 20px; }
.price { font-family: "Fraunces", Georgia, serif; font-size: 38px; font-weight: 600; color: var(--heading); margin: 10px 0 6px; line-height: 1; }
.offer.best .price { color: var(--gold); }
.price s { font-size: 17px; font-weight: 400; opacity: .75; margin-right: 6px; }
.offer ul { list-style: none; padding: 0; margin: 14px 0 24px; font-size: 16px; flex: 1; }
.offer li { padding: 6px 0 6px 22px; position: relative; }
.offer li::before { content: "✓"; position: absolute; left: 0; color: var(--terra); font-weight: 700; }
.offer.best li::before { color: var(--gold); }
.offer .btn { text-align: center; width: 100%; }
.notice { background: var(--notice-bg); color: var(--notice-ink); padding: 14px 18px; border-radius: 10px; margin: 18px 0 0; }

/* Perguntas */
details { border-bottom: 1px solid var(--line); padding: 16px 0; }
summary { cursor: pointer; font-weight: 650; color: var(--heading); font-size: 18px; }
summary:focus-visible { outline: 3px solid var(--gold); outline-offset: 4px; border-radius: 4px; }
details p { margin: 10px 0 0; color: var(--muted); }

/* Rodapé */
footer { background: var(--hero); color: var(--hero-muted); font-size: 14px; }
footer .wrap { padding: 40px 20px; display: grid; grid-template-columns: 1fr 1.4fr; gap: 24px; }
footer p { margin: 0 0 6px; }
footer a, footer b { color: var(--hero-title); }

/* Páginas internas (obrigado, leitor, termos) */
.thanks { max-width: 620px; margin: 0 auto; padding: 56px 20px 72px; }
.thanks .box { background: var(--card); border-radius: 14px; padding: 28px; margin-top: 24px; }
.thanks .btn { display: block; text-align: center; margin-top: 12px; }
.thanks input, .thanks select { width: 100%; font: inherit; padding: 12px 14px; border-radius: 10px; border: 1.5px solid var(--line); background: var(--input); color: var(--ink); margin: 6px 0 12px; }
.thanks input:focus-visible, .thanks select:focus-visible { outline: 3px solid var(--gold); outline-offset: 1px; }
.thanks label { font-weight: 600; font-size: 15px; }
.thanks h1 { color: var(--heading); font-size: 40px; }
.legal { max-width: 720px; margin: 0 auto; padding: 40px 20px 56px; }
.legal h1 { color: var(--heading); font-size: 36px; margin-bottom: 20px; }
.legal h2 { font-size: 22px; margin: 28px 0 8px; }

@media (max-width: 820px) {
  body { font-size: 16px; }
  .wrap { padding: 52px 18px; }
  .topbar .wrap, .page-top .wrap { padding-top: 10px; padding-bottom: 0; }
  .hero .wrap { padding-top: 24px; padding-bottom: 52px; }
  .hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .cover { order: -1; }
  .cover img { width: 180px; }
  .hero .lead { font-size: 17px; }
  .hero .btn { width: 100%; text-align: center; }
  .points { grid-template-columns: 1fr; gap: 22px; }
  .learn { padding: 22px 20px; }
  .list { columns: 1; }
  .sheet { grid-template-columns: 1fr; gap: 28px; }
  .shot { border-width: 4px; }
  .offers { grid-template-columns: 1fr; gap: 26px; }
  .offer.best { order: -1; }
  .preview img { width: 200px; }
  footer .wrap { grid-template-columns: 1fr; }
}