/* ===== Tokens ===== */
:root {
  --red: #E50914;
  --red-dark: #b50710;
  --black: #080808;
  --black-2: #191919;
  --white: #FFFFFF;
  --gray: #B8B8B8;
  --font-display: "Anton", Impact, "Arial Narrow Bold", sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --header-h: 80px;
  --gutter: clamp(16px, 4vw, 40px);
}

/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--black); color: var(--white); font: 400 1rem/1.6 var(--font-body); overflow-x: hidden; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--white); outline-offset: 3px; box-shadow: 0 0 0 6px var(--red); }
.container { width: min(100% - 2 * var(--gutter), 1280px); margin-inline: auto; }
.skip-link { position: absolute; left: 8px; top: -60px; z-index: 100; background: var(--white); color: var(--black); padding: 10px 16px; font-weight: 700; }
.skip-link:focus { top: 8px; }
[hidden] { display: none !important; }
svg use { fill: currentColor; }

/* ===== Botões ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 12px; border: 0; border-radius: 10px; text-decoration: none; font: 700 .9rem/1 var(--font-body); letter-spacing: .06em; text-transform: uppercase; cursor: pointer; transition: background-color .2s, transform .2s, box-shadow .2s; }
.btn--dark { background: var(--black); color: var(--white); padding: 16px 26px; }
.btn--dark:hover { background: #000; box-shadow: 0 0 0 2px var(--white) inset; }
.btn--primary { background: var(--red); color: var(--white); box-shadow: 0 10px 30px -10px rgba(229, 9, 20, .7); }
.btn--primary:hover { background: #ff1a26; transform: translateY(-2px); }
.btn--primary:active { transform: translateY(0); }
.btn--lg { padding: 18px 26px; width: min(100%, 520px); justify-content: flex-start; text-align: left; }
.btn__icon { width: 32px; height: 32px; flex: none; }
.btn__arrow { width: 28px; height: 28px; flex: none; margin-left: auto; }
.btn__label { display: grid; gap: 6px; }
.btn__title { font-family: var(--font-display); font-weight: 400; font-size: 1.45rem; letter-spacing: .04em; line-height: 1; }
.btn__sub { font-size: .78rem; font-weight: 500; letter-spacing: 0; text-transform: none; opacity: .92; line-height: 1.3; }
.cta__notice { margin-top: 12px; padding: 10px 14px; border-left: 4px solid var(--white); background: var(--black-2); color: var(--white); font-size: .9rem; max-width: 520px; }

/* ===== Header ===== */
.header { position: sticky; top: 0; z-index: 50; background: var(--red); height: var(--header-h); }
.header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; flex: none; }
.brand__mark { width: 52px; height: 52px; display: grid; place-items: center; color: var(--white); }
.brand__mark svg, .brand__mark img { width: 100%; height: 100%; object-fit: contain; }
.brand__text { font: 600 .78rem/1.25 var(--font-body); letter-spacing: .08em; text-transform: uppercase; padding-left: 14px; border-left: 1px solid rgba(255, 255, 255, .55); }
.nav { display: flex; align-items: center; gap: 32px; flex: 1; justify-content: flex-end; }
.nav__list { display: flex; gap: clamp(16px, 2.4vw, 36px); margin-inline: auto; }
.nav__link { display: inline-block; padding: 8px 2px; text-decoration: none; font-weight: 600; font-size: .82rem; letter-spacing: .06em; text-transform: uppercase; border-bottom: 2px solid transparent; transition: border-color .2s; }
.nav__link:hover { border-color: var(--white); }
.menu-toggle { display: none; width: 48px; height: 48px; padding: 0; border: 0; background: transparent; cursor: pointer; flex-direction: column; justify-content: center; align-items: center; gap: 6px; }
.menu-toggle__bar { width: 26px; height: 3px; background: var(--white); transition: transform .2s, opacity .2s; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* ===== Hero ===== */
.hero { position: relative; background: var(--black); min-height: min(850px, calc(100vh - var(--header-h))); display: flex; align-items: center; overflow: hidden; isolation: isolate; }
.hero__bg { background-image: url("../assets/hero-bg.webp"); position: absolute; inset: 0; z-index: -1; background-size: cover; background-position: center bottom; filter: saturate(.85); }
.hero__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8, 8, 8, .93) 0%, rgba(8, 8, 8, .7) 42%, rgba(8, 8, 8, .25) 100%), linear-gradient(180deg, rgba(8, 8, 8, .35), rgba(8, 8, 8, 0) 35%, rgba(8, 8, 8, .85) 100%); }
.hero__bg::before { content: ""; position: absolute; inset: auto 0 0 0; height: 4px; background: var(--red); z-index: 1; }
.hero__inner { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); align-items: center; gap: clamp(24px, 4vw, 72px); padding-block: clamp(32px, 4vw, 56px); }
.eyebrow { color: var(--red); font: 700 .9rem/1 var(--font-body); letter-spacing: .22em; text-transform: uppercase; margin-bottom: 18px; }
.hero__title { font: 400 clamp(2.9rem, 6.4vw, 5.6rem)/.98 var(--font-display); text-transform: uppercase; letter-spacing: .005em; }
.hero__line { display: block; }
.hero__line--red { color: var(--red); }
.hero__lead { margin-top: 20px; max-width: 540px; color: #e6e6e6; font-size: clamp(1rem, 1.3vw, 1.15rem); }
.benefit-list { margin-top: 22px; display: grid; gap: 14px; max-width: 540px; }
.benefit-item { display: flex; gap: 16px; align-items: center; }
.benefit-item__icon { flex: none; width: 52px; height: 52px; border-radius: 50%; background: var(--red); display: grid; place-items: center; color: var(--white); }
.benefit-item__icon svg { width: 26px; height: 26px; }
.benefit-item__title { font: 700 1rem/1.3 var(--font-body); text-transform: uppercase; letter-spacing: .02em; }
.benefit-item__text { color: var(--gray); font-size: .92rem; line-height: 1.4; }
.cta { margin-top: 26px; }
.trust { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 14px 28px; color: var(--gray); font-size: .85rem; }
.trust li { display: flex; align-items: center; gap: 8px; }
.trust svg { width: 20px; height: 20px; color: var(--white); }

/* ===== Mockup (capa 3D) ===== */
.mockup { display: grid; place-items: center; }
.mockup__book { width: min(100%, 430px); aspect-ratio: 475 / 728; }
.mockup__cover { width: 100%; height: 100%; object-fit: contain; }

/* ===== Seções claras ===== */
.section-title { font: 400 clamp(2rem, 4vw, 3.2rem)/1.05 var(--font-display); text-transform: uppercase; text-align: center; color: var(--black); }
.section-title span { color: var(--red); }
.section-rule { display: block; width: 72px; height: 5px; background: var(--red); margin: 18px auto 0; }

.features { background: var(--white); color: var(--black); padding-block: clamp(56px, 8vw, 96px); }
.features__grid { margin-top: 56px; display: grid; grid-template-columns: repeat(4, 1fr); }
.feature { padding: 8px clamp(18px, 2.5vw, 40px); text-align: center; border-left: 1px solid #e3e3e3; }
.feature:first-child { border-left: 0; }
.feature__icon { width: 72px; height: 72px; margin: 0 auto 20px; color: var(--red); display: grid; place-items: center; }
.feature__icon svg { width: 60px; height: 60px; }
.feature__title { font: 800 1.05rem/1.2 var(--font-body); text-transform: uppercase; letter-spacing: .03em; margin-bottom: 10px; }
.feature__text { color: #3a3a3a; font-size: .98rem; max-width: 26ch; margin-inline: auto; }

/* ===== Depoimentos (só aparece com conteúdo real) ===== */
.testimonials { background: #f4f4f4; color: var(--black); padding-block: clamp(56px, 8vw, 96px); }
.testimonials__list { margin-top: 48px; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 32px; }
.testimonial { border-left: 4px solid var(--red); padding-left: 20px; }
.testimonial__quote { font-size: 1.05rem; }
.testimonial__author { margin-top: 12px; font-weight: 700; }
.testimonial__role { color: #555; font-size: .9rem; }

/* ===== CTA final ===== */
.final { position: relative; isolation: isolate; background: var(--black); overflow: hidden; padding-block: clamp(56px, 8vw, 104px); }
.final__bg { background-image: url("../assets/final-bg.webp"); position: absolute; inset: 0; z-index: -1; background-size: cover; background-position: center; }
.final__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8, 8, 8, .9), rgba(8, 8, 8, .45) 60%, rgba(8, 8, 8, .6)); }
.final__inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(28px, 5vw, 80px); align-items: center; }
.final__title { font: 400 clamp(2.2rem, 5vw, 4.2rem)/1.02 var(--font-display); text-transform: uppercase; }
.final__title span { color: var(--red); }
.final__text { margin-top: 18px; max-width: 480px; color: #ececec; font-size: 1.1rem; }

/* ===== Footer ===== */
.footer { background: var(--black); color: var(--gray); font-size: .85rem; padding-block: 28px; border-top: 1px solid #262626; }
.footer__inner { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }
.footer__mail { color: var(--white); }

/* ===== Tablet ===== */
@media (max-width: 1024px) {
  .brand__text { font-size: .7rem; }
  .nav { gap: 16px; }
  .nav__list { gap: 14px; }
  .nav__link { font-size: .74rem; }
  .btn--dark { padding: 14px 18px; font-size: .8rem; }
  .features__grid { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .feature:nth-child(3) { border-left: 0; }
}

/* ===== Mobile / menu compacto (≤ 860px) ===== */
@media (max-width: 860px) {
  .menu-toggle { display: flex; }
  .nav { position: absolute; top: var(--header-h); left: 0; right: 0; background: var(--red-dark); flex-direction: column; align-items: stretch; gap: 0; padding: 8px var(--gutter) 24px; display: none; border-top: 1px solid rgba(255, 255, 255, .25); }
  .nav.is-open { display: flex; }
  .nav__list { flex-direction: column; gap: 0; margin: 0; }
  .nav__link { display: block; padding: 16px 0; font-size: .95rem; border-bottom: 1px solid rgba(255, 255, 255, .2); }
  .nav__cta { margin-top: 18px; min-height: 52px; }
  .hero { min-height: 0; }
  .hero__inner { grid-template-columns: 1fr; }
  .mockup { margin-top: 12px; }
  .mockup__book { width: min(78%, 380px); }
  .final__inner { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  :root { --header-h: 68px; }
  .brand__mark { width: 40px; height: 40px; }
  .brand__text { font-size: .62rem; padding-left: 10px; }
  .btn--lg { width: 100%; padding: 16px 18px; min-height: 64px; }
  .btn__title { font-size: 1.25rem; }
  .btn__icon { width: 26px; height: 26px; }
  .btn__arrow { width: 22px; height: 22px; }
  .trust { flex-direction: column; gap: 10px; }
  .features__grid { grid-template-columns: 1fr; row-gap: 0; }
  .feature { border-left: 0; border-top: 1px solid #e3e3e3; padding: 28px 8px; }
  .feature:first-child { border-top: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}