/* ========================================
   RESET & BASE
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Cores principais */
    --color-bg: #0a0a0a;
    --color-bg-alt: #111111;
    --color-text: #e8e8e8;
    --color-text-muted: #a0a0a0;
    --color-accent: #d4af37;
    --color-accent-hover: #f0c952;
    --color-card-bg: #1a1a1a;
    --color-card-border: #2a2a2a;

    /* Tipografia */
    --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-heading: "Georgia", "Times New Roman", serif;

    /* Espaçamentos */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;

    /* Transições */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 1.75;
    letter-spacing: 0.01em;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   HEADER
   ======================================== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-card-border);
    padding: var(--spacing-sm) 0;
}

.header__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--color-accent);
}

.logo__mark {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav__toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

.nav__links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
    align-items: center;
}

.nav__links a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: var(--transition);
    letter-spacing: 0.02em;
}

.nav__links a:hover {
    color: var(--color-accent);
}

.nav__cta {
    padding: 0.5rem 1.25rem;
    background: var(--color-accent);
    color: var(--color-bg) !important;
    border-radius: 6px;
    font-weight: 600;
}

.nav__cta:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .nav__toggle {
        display: flex;
    }

    .nav__links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-bg);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        display: none;
        border-bottom: 1px solid var(--color-card-border);
    }

    .nav__links.active {
        display: flex;
    }
}

/* ========================================
   HERO
   ======================================== */
.hero {
    position: relative;
    padding: var(--spacing-2xl) 0;
    overflow: hidden;
}

.hero__glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    pointer-events: none;
}

.hero__glow--left {
    top: -200px;
    left: -200px;
    background: var(--color-accent);
}

.hero__glow--right {
    bottom: -200px;
    right: -200px;
    background: var(--color-accent);
}

.hero__grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--spacing-xl);
    align-items: flex-start;
    position: relative;
    z-index: 1;
}

.hero__eyebrow {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.hero__title {
    font-family: var(--font-heading);
    font-size: 3rem;
    line-height: 1.15;
    margin-bottom: 1.2rem;
    color: var(--color-text);
    font-weight: 700;
    letter-spacing: 0.02em;
}

.hero__title span {
    color: var(--color-accent);
}

.hero__subtitle {
    font-size: 1.18rem;
    line-height: 1.7;
    color: var(--color-text-muted);
    margin-bottom: 2.2rem;
}

.hero__bullets {
    list-style: none;
    margin-bottom: var(--spacing-xl);
}

.hero__bullets li {
    padding-left: 1.75rem;
    position: relative;
    margin-bottom: 0.85rem;
    color: var(--color-text-muted);
    font-size: 1rem;
    line-height: 1.7;
}

.hero__bullets li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

.hero__bottom {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.hero__price-box {
    background: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: 12px;
    padding: var(--spacing-md);
}

.hero__price-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.hero__price-main {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    display: block;
    line-height: 1;
}

.hero__price-anchor {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    display: block;
    margin-top: 0.5rem;
}

.hero__cta-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.hero__image {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    margin-top: 5rem;
    background: transparent; /* Garante que não haja fundo preto */
    padding: 0; /* Remove qualquer espaçamento interno que pareça um quadrado */
}

.hero__image img {
    max-width: 100%;
    height: auto;
    border-radius: 12px; /* Mantém os cantos arredondados se a imagem for retangular */
    
    /* Esta sombra abaixo cria o brilho dourado suave em volta do e-book */
    filter: drop-shadow(0 10px 30px rgba(212, 175, 55, 0.3)); 
    
    /* Se a sua imagem NÃO for transparente, use o box-shadow abaixo: */
    /* box-shadow: 0 20px 50px rgba(212, 175, 55, 0.2); */
    
    transition: var(--transition);
}

.hero__image img:hover {
    transform: scale(1.03);
}

@media (max-width: 768px) {
    .hero__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .hero__title {
        font-size: 2rem;
    }

    .hero__subtitle {
        font-size: 1.125rem;
    }

    .hero__image {
        order: -1;
        justify-content: center;
    }

    .hero__image img {
        max-width: 100%;
    }
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-block;
    padding: 1rem 2.6rem;
    font-size: 1.05rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 999px;
    transition: var(--transition);
    text-align: center;
    cursor: pointer;
    border: none;
    letter-spacing: 0.04em;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(120deg, rgba(212,175,55,0.8), rgba(255,255,255,0.1));
    -webkit-mask:
      linear-gradient(#000 0 0) content-box,
      linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.btn--primary {
    background: linear-gradient(135deg, #f0c952, #d4af37);
    color: #1b1505;
    box-shadow: 0 12px 30px rgba(212, 175, 55, 0.4);
}

.btn--primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 40px rgba(212, 175, 55, 0.5);
}

.btn--primary:hover::before {
    opacity: 1;
}

.btn--secondary {
    background: transparent;
    color: var(--color-accent);
    border-radius: 999px;
    border: 1px solid rgba(212, 175, 55, 0.6);
    box-shadow: 0 0 0 rgba(0, 0, 0, 0);
}

.btn--secondary:hover {
    background: rgba(212, 175, 55, 0.06);
    border-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.5);
}

.btn--large {
    padding: 1.2rem 3.2rem;
    font-size: 1.12rem;
}

/* ========================================
   MICROCOPY
   ======================================== */
.microcopy {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.microcopy--center {
    text-align: center;
}

/* ========================================
   SECTIONS
   ======================================== */
.section {
    padding: var(--spacing-2xl) 0;
}

.section--alt {
    background: var(--color-bg-alt);
}

.section__title {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    line-height: 1.2;
    margin-bottom: 1.4rem;
    text-align: center;
    color: var(--color-text);
    font-weight: 700;
    letter-spacing: 0.02em;
}

.section__intro {
    font-size: 1.12rem;
    line-height: 1.8;
    color: var(--color-text-muted);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.section__cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.section__cta--inline {
    flex-direction: row;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.section__price {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.125rem;
    flex-wrap: wrap;
}

.section__price strong {
    color: var(--color-accent);
    font-size: 1.5rem;
}

.section__price-note {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

/* ========================================
   GRID
   ======================================== */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid--2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 992px) {
    .grid--3,
    .grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .grid--2,
    .grid--3,
    .grid--4 {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   CARDS
   ======================================== */
.card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.15);
}

.card--dark {
    background: var(--color-bg);
}

.card--border {
    border: 2px solid var(--color-card-border);
}

.card--icon {
    text-align: center;
}

.card__icon {
    font-size: 3rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.card h3 {
    font-size: 1.375rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    font-weight: 600;
}

.card p {
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ========================================
   LISTS
   ======================================== */
.list-check,
.list-cross {
    list-style: none;
    padding: 0;
}

.list-check li,
.list-cross li {
    padding-left: 1.75rem;
    position: relative;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-muted);
}

.list-check li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

.list-cross li::before {
    content: "✗";
    position: absolute;
    left: 0;
    color: #c44;
    font-weight: bold;
}

.content-list ul {
    list-style: none;
    padding: 0;
    max-width: 900px;
    margin: 0 auto;
}

.content-list li {
    padding-left: 1.75rem;
    position: relative;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-muted);
    font-size: 1.0625rem;
    line-height: 1.7;
}

.content-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

/* ========================================
   AUTHOR
   ======================================== */
.author {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.author__image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.author__text p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-muted);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .author {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   FAQ
   ======================================== */
.faq {
    max-width: 900px;
    margin: 0 auto;
}

.faq__item {
    background: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: 8px;
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

.faq__item summary {
    padding: var(--spacing-md);
    font-weight: 600;
    cursor: pointer;
    color: var(--color-text);
    transition: var(--transition);
    font-size: 1.0625rem;
}

.faq__item summary:hover {
    color: var(--color-accent);
}

.faq__item p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ========================================
   GUARANTEE
   ======================================== */
.guarantee {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.guarantee__content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-muted);
    line-height: 1.7;
    font-size: 1.0625rem;
}

/* ========================================
   CTA FINAL
   ======================================== */
.cta-final {
    position: relative;
    overflow: hidden;
}

.cta-final__background {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(212, 175, 55, 0.1), transparent 70%);
    pointer-events: none;
}

.cta-final__content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.cta-final__box {
    background: var(--color-card-bg);
    border: 2px solid var(--color-accent);
    border-radius: 16px;
    padding: var(--spacing-xl);
    max-width: 700px;
    margin: var(--spacing-xl) auto 0;
    box-shadow: 0 20px 60px rgba(212, 175, 55, 0.2);
}

.cta-final__price {
    margin-bottom: var(--spacing-lg);
}

.cta-final__price p {
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.cta-final__price-main {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    display: block;
    line-height: 1;
    margin: var(--spacing-sm) 0;
}

.cta-final__price-note {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    display: block;
    margin-top: var(--spacing-sm);
}

.cta-final__box .btn {
    margin-bottom: var(--spacing-md);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-card-border);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer__content {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.footer__links {
    margin-top: var(--spacing-sm);
}

.footer__links a {
    color: var(--color-accent);
    text-decoration: none;
    transition: var(--transition);
}

.footer__links a:hover {
    color: var(--color-accent-hover);
}

/* ========================================
   MOBILE PREMIUM ADJUSTMENTS
   ======================================== */
@media (max-width: 640px) {
    body {
        font-size: 1rem;
        line-height: 1.8;
    }

    .hero__title {
        font-size: 1.9rem;
        line-height: 1.25;
    }

    .hero__subtitle {
        font-size: 1.05rem;
        margin-bottom: 1.8rem;
    }

    .hero__bullets li {
        font-size: 0.98rem;
    }

    .btn {
        width: 100%;
        max-width: 360px;
        margin: 0 auto;
    }

    .hero__cta-wrapper {
        align-items: center;
    }

    .microcopy {
        text-align: center;
        max-width: 360px;
        margin: 0.5rem auto 0;
    }

    .section__title {
        font-size: 1.8rem;
    }

    .section__intro {
        font-size: 1rem;
    }
    .hero__image {
        justify-content: center;
        align-items: center;
        margin-top: 0;       /* não desce no mobile */
    }

    .hero__image img {
        max-width: 100%;     /* ocupa bem o espaço no mobile */
    }
}