:root {
  --black: #050505;
  --black-soft: #0b0b0c;
  --panel: #121214;
  --panel-2: #19191c;
  --white: #f5f5f5;
  --muted: #a8a8ad;
  --red: #e50914;
  --gold: #d6a849;
  --line: rgba(255,255,255,.12);
  --shadow: 0 22px 70px rgba(0,0,0,.55);
  --radius: 18px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; background: var(--black); }
body {
  min-width: 320px;
  background: var(--black);
  color: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
body.modal-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.site-header {
  position: fixed; z-index: 50; inset: 0 0 auto; height: 76px;
  display: flex; align-items: center; gap: 44px; padding: 0 4.5vw;
  background: linear-gradient(to bottom, rgba(0,0,0,.95), rgba(0,0,0,.55), transparent);
  transition: background .25s ease;
}
.site-header.scrolled { background: rgba(5,5,5,.95); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.brand { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand img { width: 48px; height: 48px; object-fit: cover; border-radius: 7px; background: white; }
.brand div { display: grid; line-height: 1; }
.brand strong { color: var(--gold); font-size: 1.25rem; letter-spacing: .08em; }
.brand span { margin-top: 5px; color: #ddd; font-size: .62rem; letter-spacing: .19em; }
.main-menu { display: flex; gap: 28px; color: #e2e2e2; font-size: .92rem; }
.main-menu a { transition: color .2s; }
.main-menu a:hover { color: var(--red); }
.menu-button { display: none; margin-left: auto; border: 0; background: transparent; cursor: pointer; }
.menu-button span { display: block; width: 28px; height: 2px; margin: 6px 0; border-radius: 9px; background: white; }

.hero {
  position: relative; min-height: min(880px, 100vh); display: flex; align-items: end;
  overflow: hidden; padding: 140px 5vw 9vh;
}
.hero-backdrop {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,.88) 0%, rgba(0,0,0,.6) 41%, rgba(0,0,0,.12) 72%), url("assets/images/tela-de-aranha.jpeg") 83% 30% / min(55vw, 720px) auto no-repeat, #030303;
  filter: saturate(1.1); transform: scale(1.015);
}
.hero-backdrop::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, var(--black) 0%, transparent 35%), radial-gradient(circle at 80% 40%, transparent 0, rgba(0,0,0,.18) 45%, rgba(0,0,0,.72) 100%);
}
.hero-shade { position: absolute; inset: auto 0 0; height: 180px; background: linear-gradient(transparent, var(--black)); }
.hero-content { position: relative; z-index: 2; max-width: 690px; }
.kicker, .eyebrow { color: var(--red); font-size: .76rem; font-weight: 900; letter-spacing: .19em; }
.hero h1 { margin-top: 18px; max-width: 680px; font-size: clamp(3.2rem, 6.6vw, 6.8rem); line-height: .94; letter-spacing: -.062em; text-wrap: balance; }
.hero-description { max-width: 620px; margin-top: 24px; color: #e0e0e0; font-size: clamp(1rem, 1.7vw, 1.26rem); text-shadow: 0 2px 10px rgba(0,0,0,.8); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 32px; }
.button {
  min-height: 50px; display: inline-flex; align-items: center; justify-content: center;
  padding: 0 23px; border: 0; border-radius: 7px; font-weight: 800; cursor: pointer;
  transition: transform .18s ease, background .18s ease, opacity .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--red); color: white; }
.button-primary:hover { background: #f6121d; }
.button-secondary { background: rgba(255,255,255,.18); color: white; backdrop-filter: blur(8px); }
.button-secondary:hover { background: rgba(255,255,255,.28); }
.hero-meta { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 28px; color: #bfbfc4; font-size: .82rem; }
.hero-meta span::before { content: "✓"; margin-right: 7px; color: var(--gold); font-weight: 900; }

.catalog-section {
  position: relative; z-index: 3; padding: 72px 4.5vw 110px;
  background: radial-gradient(circle at 50% 10%, rgba(229,9,20,.08), transparent 26%), var(--black);
}
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 34px; }
.section-heading h2, .author-copy h2, .publisher-copy h2, .steps-section h2, .contact-section h2 { margin-top: 8px; font-size: clamp(2rem, 4vw, 4.25rem); line-height: 1.02; letter-spacing: -.045em; }
.section-heading > p { color: var(--muted); }
.book-grid {
  display: grid; grid-template-columns: repeat(7, minmax(290px, 1fr)); gap: 24px;
  overflow-x: auto; padding: 8px 3px 30px; scroll-snap-type: x mandatory; scrollbar-color: #353535 transparent;
}
.book-card { min-width: 320px; scroll-snap-align: start; transition: transform .24s ease; align-self: start; }
.book-card:hover { transform: scale(1.02); z-index: 2; }
.cover-wrap { position: relative; aspect-ratio: 2 / 3; overflow: hidden; border-radius: 10px; background: #111; box-shadow: 0 16px 36px rgba(0,0,0,.5); }
.cover-wrap::after { content: ""; position: absolute; inset: auto 0 0; height: 32%; background: linear-gradient(transparent, rgba(0,0,0,.68)); }
.cover-wrap img { width: 100%; height: 100%; display: block; object-fit: cover; }

.launch-tag {
  position: absolute;
  z-index: 3;
  top: 10px;
  left: 10px;
  padding: 7px 10px;
  border-radius: 6px;
  background: linear-gradient(135deg, #f0c75e, #b88920);
  color: #070707;
  font-size: .69rem;
  font-weight: 950;
  letter-spacing: .09em;
  box-shadow: 0 8px 22px rgba(0,0,0,.5);
}

.price-tag {
  position: absolute; z-index: 2; right: 10px; bottom: 10px; padding: 6px 9px; border-radius: 6px;
  background: var(--red); color: white; font-size: .78rem; font-weight: 900; box-shadow: 0 7px 20px rgba(0,0,0,.5);
}
.book-info { padding: 16px 3px 0; }
.book-category { color: var(--gold); font-size: .69rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.book-info h3 { margin-top: 6px; font-size: 1.04rem; line-height: 1.25; }
.book-hook { margin-top: 8px; color: #d5d5da; font-size: .86rem; font-weight: 700; }
.synopsis {
  margin-top: 11px; color: var(--muted); font-size: .82rem; line-height: 1.62;
  display: -webkit-box; -webkit-line-clamp: 10; -webkit-box-orient: vertical; overflow: hidden;
}
.card-buy {
  width: 100%; margin-top: 16px; padding: 11px 13px; border: 1px solid rgba(255,255,255,.2);
  border-radius: 7px; background: #1d1d20; color: white; font-weight: 800; cursor: pointer;
  transition: background .18s ease, border-color .18s ease;
}
.card-buy:hover { border-color: var(--red); background: var(--red); }

.author-section, .publisher-section {
  display: grid; grid-template-columns: minmax(300px, .75fr) 1.25fr; gap: clamp(45px, 7vw, 105px);
  align-items: center; padding: 110px 7vw; border-block: 1px solid var(--line);
}
.author-section { background: radial-gradient(circle at 15% 45%, rgba(214,168,73,.12), transparent 28%), #0b0b0d; }
.publisher-section { background: radial-gradient(circle at 85% 35%, rgba(229,9,20,.12), transparent 28%), #080809; }
.author-photo-card, .publisher-visual-card {
  max-width: 580px; padding: 18px; border: 1px solid rgba(214,168,73,.24); border-radius: 22px; background: #0f0f10; box-shadow: var(--shadow);
}
.author-photo-card img {
  width: 100%; aspect-ratio: 4/5; display: block; object-fit: cover; object-position: center center; border-radius: 12px;
}
.publisher-visual-card img {
  width: 100%; display: block; border-radius: 12px; background: white;
}
.author-copy p:not(.eyebrow), .publisher-copy p:not(.eyebrow) { margin-top: 19px; color: #c6c6cb; font-size: 1rem; }
.social-links { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 30px; }
.social-links a {
  padding: 11px 15px; border: 1px solid var(--line); border-radius: 999px; color: #efeff1; font-size: .83rem;
  transition: border-color .18s, background .18s;
}
.social-links a:hover { border-color: var(--red); background: rgba(229,9,20,.1); }

.steps-section { padding: 105px 5vw; background: var(--black); }
.section-heading.centered { display: block; text-align: center; }
.steps-grid { max-width: 1180px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 45px auto 0; }
.steps-grid article { min-height: 210px; padding: 27px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, #18181b, #0d0d0f); }
.steps-grid span { color: var(--red); font-size: 2.25rem; font-weight: 900; letter-spacing: -.06em; }
.steps-grid h3 { margin-top: 28px; font-size: 1.09rem; }
.steps-grid p { margin-top: 9px; color: var(--muted); font-size: .9rem; }
.delivery-note { margin-top: 27px; color: #aaa; text-align: center; font-size: .83rem; }

.contact-section {
  display: flex; align-items: center; justify-content: space-between; gap: 45px; padding: 85px 7vw;
  background: linear-gradient(100deg, rgba(0,0,0,.93), rgba(0,0,0,.55)), url("assets/images/mude-sua-mente.jpeg") center 35% / cover no-repeat;
}
.contact-section > div { max-width: 780px; }
footer {
  display: grid; grid-template-columns: 1fr auto; gap: 35px; align-items: center; padding: 48px 5vw;
  border-top: 1px solid var(--line); background: #030303; color: #9b9ba0; font-size: .78rem;
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { width: 48px; height: 48px; border-radius: 6px; object-fit: cover; }
.footer-brand div { display: grid; }
.footer-brand strong { color: var(--gold); font-size: .95rem; }
.footer-brand span { margin-top: 2px; }
.footer-links { display: flex; gap: 23px; color: #d3d3d6; }
footer > p { grid-column: 1 / -1; padding-top: 22px; border-top: 1px solid var(--line); }

.henriquinho-widget {
  position: fixed; right: 18px; bottom: 18px; z-index: 60; width: min(280px, calc(100vw - 28px));
  display: grid; gap: 8px; padding: 10px; border-radius: 18px; border: 1px solid rgba(255,255,255,.16);
  background: rgba(16,16,18,.95); box-shadow: 0 18px 45px rgba(0,0,0,.5); backdrop-filter: blur(12px);
}
.henriquinho-thumb {
  width: 70px; height: 70px; overflow: hidden; border-radius: 14px; border: 1px solid rgba(255,255,255,.14); background: white;
}
.henriquinho-thumb img { width: 100%; height: 100%; object-fit: cover; object-position: 20% 32%; }
.henriquinho-widget span { color: white; font-size: .83rem; font-weight: 800; line-height: 1.35; }
.henriquinho-widget:hover { transform: translateY(-2px); }

.purchase-modal { position: fixed; z-index: 100; inset: 0; display: none; place-items: center; padding: 20px; }
.purchase-modal.open { display: grid; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.86); backdrop-filter: blur(10px); }
.modal-panel {
  position: relative; z-index: 2; width: min(100%, 790px); max-height: calc(100vh - 40px); overflow-y: auto;
  padding: 30px; border: 1px solid rgba(255,255,255,.17); border-radius: 20px; background: #111114; box-shadow: 0 30px 120px rgba(0,0,0,.8);
}
.modal-close {
  position: absolute; z-index: 2; top: 15px; right: 17px; width: 39px; height: 39px; border: 1px solid var(--line);
  border-radius: 50%; background: #242428; color: white; font-size: 1.6rem; line-height: 1; cursor: pointer;
}
.modal-product { display: grid; grid-template-columns: 105px 1fr; gap: 20px; align-items: center; padding-right: 45px; }
.modal-product img { width: 105px; aspect-ratio: 2 / 3; object-fit: cover; border-radius: 8px; box-shadow: 0 13px 32px rgba(0,0,0,.5); }
.modal-product h2 { margin-top: 7px; font-size: clamp(1.5rem, 4vw, 2.5rem); line-height: 1.08; }
.modal-price { margin-top: 9px; color: var(--gold); font-size: 1.55rem; font-weight: 900; }
.digital-label { color: var(--muted); font-size: .81rem; }
.payment-box { display: grid; grid-template-columns: 190px 1fr; gap: 24px; align-items: center; margin-top: 28px; padding: 22px; border: 1px solid var(--line); border-radius: 15px; background: #19191c; }
.qr-placeholder {
  aspect-ratio: 1; display: grid; place-content: center; padding: 18px; border: 7px solid white; background:
  linear-gradient(90deg, #111 12%, transparent 12%, transparent 23%, #111 23%, #111 35%, transparent 35%, transparent 47%, #111 47%, #111 59%, transparent 59%, transparent 72%, #111 72%, #111 84%, transparent 84%),
  linear-gradient(#111 12%, transparent 12%, transparent 23%, #111 23%, #111 35%, transparent 35%, transparent 47%, #111 47%, #111 59%, transparent 59%, transparent 72%, #111 72%, #111 84%, transparent 84%), white;
  background-size: 37px 37px; color: white; text-align: center; box-shadow: inset 0 0 0 999px rgba(0,0,0,.8);
}
.qr-placeholder span { font-weight: 900; }
.qr-placeholder small { margin-top: 7px; font-size: .62rem; }
.pix-details label { display: block; margin-bottom: 8px; color: #ddd; font-size: .78rem; font-weight: 800; }
.copy-row { display: flex; gap: 8px; }
.copy-row input { min-width: 0; flex: 1; padding: 13px; border: 1px solid var(--line); border-radius: 7px; outline: none; background: #09090b; color: white; }
.copy-row button { padding: 0 16px; border: 0; border-radius: 7px; background: white; color: #111; font-weight: 900; cursor: pointer; }
#copy-feedback { min-height: 22px; margin-top: 7px; color: #73da99; font-size: .76rem; }
.receipt-box { margin-top: 19px; padding: 22px; border-radius: 15px; background: #19191c; }
.receipt-box h3 { font-size: 1.02rem; }
.receipt-box p { margin-top: 7px; color: var(--muted); font-size: .87rem; }
.receipt-box .button { width: 100%; margin-top: 17px; }
.receipt-box small { display: block; margin-top: 9px; color: #8d8d93; text-align: center; }
.security-note { margin-top: 18px; color: #8f8f95; text-align: center; font-size: .75rem; }

@media (max-width: 1100px) {
  .book-grid { grid-template-columns: repeat(7, 320px); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
  .site-header { height: 68px; padding-inline: 20px; }
  .brand img { width: 42px; height: 42px; }
  .main-menu {
    position: absolute; top: 67px; left: 15px; right: 15px; display: none; flex-direction: column; gap: 0;
    padding: 10px; border: 1px solid var(--line); border-radius: 12px; background: #111114; box-shadow: var(--shadow);
  }
  .main-menu.open { display: flex; }
  .main-menu a { padding: 13px; }
  .menu-button { display: block; }
  .hero { min-height: 800px; align-items: end; padding: 120px 22px 80px; }
  .hero-backdrop { background: linear-gradient(to top, #050505 0%, rgba(0,0,0,.15) 54%, rgba(0,0,0,.28)), linear-gradient(90deg, rgba(0,0,0,.72), rgba(0,0,0,.05)), url("assets/images/tela-de-aranha.jpeg") center 9% / auto 78% no-repeat, #030303; }
  .hero-content { max-width: 100%; }
  .hero h1 { font-size: clamp(2.8rem, 12vw, 5rem); }
  .catalog-section, .steps-section { padding-inline: 20px; }
  .section-heading { align-items: start; flex-direction: column; gap: 10px; }
  .author-section, .publisher-section { grid-template-columns: 1fr; padding-inline: 22px; }
  .author-photo-card, .publisher-visual-card { max-width: 500px; margin-inline: auto; }
  .contact-section { align-items: start; flex-direction: column; padding-inline: 22px; }
  footer { grid-template-columns: 1fr; padding-inline: 22px; }
  .footer-links { flex-wrap: wrap; }
  .payment-box { grid-template-columns: 150px 1fr; }
}
@media (max-width: 560px) {
  .brand div { display: none; }
  .hero-actions { display: grid; }
  .button { width: 100%; }
  .hero-meta { display: grid; gap: 7px; }
  .book-grid { grid-template-columns: repeat(7, min(84vw, 330px)); }
  .steps-grid { grid-template-columns: 1fr; }
  .modal-panel { padding: 22px 17px; }
  .modal-product { grid-template-columns: 82px 1fr; gap: 14px; }
  .modal-product img { width: 82px; }
  .payment-box { grid-template-columns: 1fr; }
  .qr-placeholder { width: 180px; margin-inline: auto; }
  .copy-row { display: grid; }
  .copy-row button { min-height: 44px; }
  .henriquinho-widget { right: 10px; left: 10px; width: auto; bottom: 10px; }
}


.mobile-catalog-guide,
.mobile-more-hint {
  display: none;
}

@media (max-width: 820px) {
  .mobile-catalog-guide {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin: -6px 0 14px;
    padding: 11px 12px;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 12px;
    background: linear-gradient(90deg, rgba(229,9,20,.12), rgba(255,255,255,.035));
  }

  .mobile-catalog-guide > span {
    color: #dedee2;
    font-size: .78rem;
    font-weight: 800;
    line-height: 1.3;
  }

  .catalog-arrows {
    display: flex;
    gap: 8px;
    flex: 0 0 auto;
  }

  .catalog-arrow {
    width: 43px;
    height: 43px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 50%;
    background: #1c1c1f;
    color: white;
    font-size: 2rem;
    font-weight: 400;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(0,0,0,.32);
    transition: background .18s ease, opacity .18s ease, transform .18s ease;
  }

  .catalog-arrow:active {
    transform: scale(.94);
  }

  .catalog-arrow:not(:disabled) {
    background: var(--red);
  }

  .catalog-arrow:disabled {
    opacity: .32;
    cursor: default;
  }

  .book-grid {
    position: relative;
    padding-right: 42px;
    scroll-padding-left: 3px;
  }

  .book-grid::after {
    content: "";
    position: sticky;
    right: 0;
    width: 34px;
    min-width: 34px;
    align-self: stretch;
    pointer-events: none;
    background: linear-gradient(90deg, transparent, rgba(5,5,5,.94));
  }

  .mobile-more-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    margin-top: 3px;
    color: #d7d7db;
    font-size: .8rem;
    font-weight: 900;
    letter-spacing: .04em;
  }

  .mobile-more-hint .hint-arrow {
    color: var(--red);
    font-size: 1.35rem;
    animation: catalogHint 1.15s ease-in-out infinite alternate;
  }
}

@keyframes catalogHint {
  from { transform: translateX(0); }
  to { transform: translateX(7px); }
}