/* ===== Design tokens (extraídos do site atual em smart-reads.net) ===== */
:root {
  --navy: #003366;
  --navy-dark: #001f3f;
  --ink: #1a1a1a;
  --ink-soft: #1d1e20;
  --gray-text: #727586;
  --green: #07ba19;
  --green-dark: #2aa81c;
  --gold: #ffc300;
  --gold-deep: #a67c27;
  --parchment: #e3d8b1;
  --parchment-light: #f5f2eb;
  --parchment-mid: #e8dec1;
  --brown: #704f26;
  --red: #cc0909;
  --white: #ffffff;
  --logo-bg: #303540;
  --logo-teal: #3b7678;
  --logo-mint: #6ee19c;

  --font-heading: "Playfair Display", "Times New Roman", serif;
  --font-body: "DM Sans", Arial, sans-serif;
  --font-button: "Montserrat", Arial, sans-serif;

  --radius: 14px;
  --container-w: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.narrow { max-width: 760px; margin-left: auto; margin-right: auto; }
.center { text-align: center; }

h1, h2, h3 {
  font-family: var(--font-heading);
  color: var(--navy);
  line-height: 1.2;
  margin: 0 0 16px;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: 1.15rem; }

.faq-title {
  white-space: nowrap;
  font-size: clamp(1.1rem, 5vw, 2.25rem);
}

p { margin: 0 0 16px; }

.eyebrow {
  font-family: var(--font-button);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-deep);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.lead, .section-lead {
  font-size: 1.1rem;
  color: var(--gray-text);
}

.sub-title { margin-top: 40px; }

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  font-family: var(--font-button);
  font-weight: 700;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 16px 32px;
  border-radius: 999px;
  text-align: center;
  transition: background-color .2s ease, transform .15s ease;
}

.btn-green {
  background: var(--green);
  color: var(--white);
}
.btn-green:hover { background: var(--green-dark); transform: translateY(-1px); }

.btn-large { padding: 20px 44px; font-size: 1.05rem; }
.btn-small { padding: 10px 20px; font-size: 0.85rem; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--logo-bg);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--logo-teal);
  text-decoration: none;
}
.logo span { color: var(--logo-mint); }
.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  object-fit: cover;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav a {
  font-family: var(--font-button);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--white);
  text-decoration: none;
}
.main-nav a:hover { color: var(--logo-mint); }
.nav-cta { margin-left: 8px; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  display: block;
}

/* ===== Hero ===== */
.hero {
  padding: 64px 0;
  background: var(--parchment-light);
  overflow: hidden;
}
.hero-inner {
  display: flex;
  justify-content: center;
}
.hero-text {
  position: relative;
  z-index: 2;
  max-width: 680px;
  text-align: center;
}
.price-badge {
  display: inline-block;
  background: var(--red);
  color: var(--white);
  font-family: var(--font-button);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  padding: 8px 18px;
  border-radius: 999px;
  margin: 0 0 12px;
}
.price-badge-old {
  text-decoration: line-through;
  opacity: 0.8;
}
.hero-text .eyebrow {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  letter-spacing: 0.02em;
  line-height: 1.15;
}
.hero-text h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
}
.hero-text .btn { margin-top: 12px; }

.hero-media {
  position: relative;
  width: 100%;
  max-width: 680px;
  aspect-ratio: 1 / 1;
  margin: 46px auto 58px;
}
.hero-media::before,
.hero-media::after {
  content: "";
  position: absolute;
  z-index: 0;
  border-radius: 62% 38% 55% 45% / 45% 55% 45% 55%;
}
.hero-media::before {
  width: 52%;
  height: 52%;
  top: -6%;
  right: -4%;
  background: var(--navy);
  opacity: 0.9;
}
.hero-media::after {
  width: 72%;
  height: 72%;
  bottom: -8%;
  left: -4%;
  background: var(--parchment);
  border-radius: 45% 55% 40% 60% / 55% 40% 60% 40%;
}

/* ===== Sections ===== */
.section { padding: 72px 0; }
.section-alt { background: var(--parchment-light); }
.section-dark { background: var(--navy); color: var(--white); }
.section-dark h2 { color: var(--white); }
.section-dark .section-lead { color: #cdd6e0; }
.section-offer {
  background: linear-gradient(180deg, var(--parchment-mid) 0%, var(--parchment-light) 100%);
}
.price-highlight {
  color: var(--green-dark);
  font-size: 1.25em;
  white-space: nowrap;
}

/* ===== Check list ===== */
.check-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 32px;
  display: grid;
  gap: 14px;
  text-align: left;
}
.check-list li {
  position: relative;
  padding-left: 32px;
  font-weight: 500;
}
.check-list li::before {
  content: "✔️";
  position: absolute;
  left: 0;
}

/* ===== Book grid / covers ===== */
.book-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
  margin: 48px 0;
}
.book-card {
  flex: 1 1 260px;
  max-width: 300px;
  text-align: center;
  background: var(--white);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}
.book-card h3 { margin-top: 16px; font-size: 1.05rem; }
.book-card p { color: var(--gray-text); font-size: 0.95rem; }

.placeholder-cover {
  aspect-ratio: 3 / 4;
  border-radius: var(--radius);
  width: 100%;
}
div.placeholder-cover {
  background: repeating-linear-gradient(
    135deg,
    var(--parchment-mid),
    var(--parchment-mid) 10px,
    var(--parchment) 10px,
    var(--parchment) 20px
  );
  border: 2px dashed var(--brown);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 16px;
}
img.placeholder-cover {
  object-fit: cover;
}
.placeholder-cover span {
  font-family: var(--font-button);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brown);
}
.placeholder-small { aspect-ratio: 3 / 4; margin-bottom: 12px; }

.hero-mockup-img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* ===== Feature / audience grids ===== */
.feature-grid, .audience-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 40px;
}
@media (max-width: 560px) {
  .feature-grid, .audience-grid {
    grid-template-columns: 1fr;
  }
}
.feature-item, .audience-item {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  text-align: center;
  overflow: hidden;
}
.feature-item { padding: 28px; }
.audience-item h3 { margin: 16px 24px 0; }
.audience-item p { margin-bottom: 0; padding: 0 24px 24px; }
.audience-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
}
.section-alt .audience-item { background: var(--white); }

/* ===== Bonuses ===== */
.bonus-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px;
  margin: 40px 0;
}
.bonus-card {
  flex: 1 1 260px;
  max-width: 300px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}
.bonus-tag {
  font-family: var(--font-button);
  font-weight: 700;
  color: var(--red);
  text-transform: uppercase;
  font-size: 0.8rem;
  margin-bottom: 4px;
}
.bonus-card h3 { font-size: 1rem; }
.bonus-card p { font-size: 0.9rem; color: var(--gray-text); }
.bonus-card p.bonus-tag { color: var(--red); }
.price { display: flex; gap: 10px; justify-content: center; align-items: baseline; font-family: var(--font-button); font-weight: 700; }
.price .old { color: var(--red); text-decoration: line-through; font-size: 0.9rem; }
.price .new { color: var(--green); font-size: 1.1rem; }

.highlight-box {
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius);
  padding: 40px 32px;
  margin-top: 16px;
}
.highlight-box h3 { color: var(--white); }
.highlight-box p { color: #e6ecf2; }

.text-gold { color: var(--gold-deep); }
.highlight-box .text-gold { color: var(--gold); }
.text-red { color: var(--red); font-weight: 700; }

/* ===== Stat ===== */
.stat {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: var(--navy);
}

/* ===== Offer box ===== */
.offer-box {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.08);
  margin-top: 24px;
}
.offer-box .btn-large {
  padding: 18px 20px;
  font-size: 0.95rem;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
}
.offer-list {
  list-style: none;
  padding: 0;
  margin: 24px 0;
  display: grid;
  gap: 10px;
  text-align: left;
  font-weight: 500;
}
.offer-meta { color: var(--gray-text); font-size: 0.9rem; }
.offer-urgency { color: var(--gold-deep); font-weight: 700; font-family: var(--font-button); }

/* ===== FAQ ===== */
.faq-list { margin-top: 32px; }
.faq-item {
  border-bottom: 1px solid #e2e2e2;
}
.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 20px 0;
  font-family: var(--font-button);
  font-weight: 700;
  font-size: 1rem;
  color: var(--navy);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-question::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--gold-deep);
  transition: transform .2s ease;
}
.faq-question[aria-expanded="true"]::after { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .25s ease;
}
.faq-answer p { padding-bottom: 20px; color: var(--gray-text); }

/* ===== Footer ===== */
.site-footer {
  background: var(--logo-bg);
  color: #b8bcc4;
  padding: 32px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-inner p { margin: 0; font-size: 0.85rem; }

/* ===== Responsive ===== */
@media (max-width: 860px) {
  .section { padding: 40px 0; }
  .hero-text .btn { margin: 6px auto 0; padding: 12px 24px; font-size: 0.9rem; }

  .header-inner { height: 44px; }
  .logo-mark { width: 24px; height: 24px; }
  .logo { font-size: 1rem; }

  .hero { padding: 6px 0; }
  .hero-media { max-width: 250px; margin: 10px auto 16px; }
  .price-badge { font-size: 1rem; padding: 6px 14px; margin-bottom: 6px; }
  .hero-text .eyebrow { margin-bottom: 4px; font-size: 0.85rem; }
  .hero-text h1 { font-size: 1.3rem; margin-bottom: 0; line-height: 1.2; }
  .hero-text .lead {
    margin-bottom: 8px;
    font-size: 0.9rem;
    line-height: 1.4;
  }

  .main-nav {
    position: fixed;
    top: 44px;
    left: 0;
    right: 0;
    background: var(--logo-bg);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transform: translateY(-150%);
    transition: transform .25s ease;
  }
  .main-nav.open { transform: translateY(0); }
  .menu-toggle { display: flex; }
}

@media (max-width: 480px) {
  .book-card, .bonus-card {
    flex-basis: 100%;
    max-width: 320px;
  }
}

/* ===== Scroll reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}