/* DESIGN SYSTEM - ESTUDANTE ATIVO */
:root {
    --gold: #d4af37;
    --gold-hover: #f1c40f;
    --dark-bg: #0a0a0a;
    --card-bg: #151515;
    --white: #ffffff;
    --gray: #e0e0e0;
    --text-muted: #888;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Roboto', sans-serif; background-color: var(--dark-bg); color: var(--white); line-height: 1.6; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
.small { max-width: 800px; }
.center { text-align: center; }
.highlight { color: var(--gold); font-weight: 800; }

/* HEADER */
header { padding: 20px 0; background: rgba(0,0,0,0.95); border-bottom: 1px solid #222; position: sticky; top: 0; z-index: 1000; }
nav { display: flex; justify-content: space-between; align-items: center; }
.logo { font-family: 'Montserrat', sans-serif; font-size: 1.5rem; font-weight: 800; }
.logo span { color: var(--gold); }
.nav-btn { background: var(--gold); color: #000; padding: 10px 20px; text-decoration: none; border-radius: 5px; font-weight: bold; font-size: 0.8rem; }

/* HERO */
.hero { padding: 100px 0; text-align: center; background: radial-gradient(circle, #1a1a1a 0%, #0a0a0a 100%); }
h1 { font-family: 'Montserrat', sans-serif; font-size: 3rem; margin-bottom: 25px; line-height: 1.1; }
.subtitle { font-size: 1.3rem; color: var(--gray); margin-bottom: 50px; }

/* VIDEO BOX */
.video-container { max-width: 750px; margin: 0 auto 50px; }
.video-placeholder { 
    background: #000; border: 2px solid var(--gold); aspect-ratio: 16/9; 
    display: flex; flex-direction: column; align-items: center; justify-content: center; 
    border-radius: 15px; cursor: pointer; position: relative; overflow: hidden;
}
.play-icon { font-size: 4rem; color: var(--gold); }

/* IMAGES & MOCKUPS */
img { max-width: 100%; height: auto; }
.ebook-img img { filter: drop-shadow(0 20px 40px rgba(0,0,0,0.5)); }
.image-placeholder { margin: 40px 0; border-radius: 10px; overflow: hidden; border: 1px solid #333; }

/* WHITE SECTION (EBOOK) */
.white-section { background: var(--white); color: #111; padding: 100px 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.dark-title { font-family: 'Montserrat', sans-serif; font-size: 2.5rem; line-height: 1.2; }
.gold-text { color: var(--gold); }

/* BÔNUS */
.bonus-section { padding: 80px 0; background: #050505; }
.bonus-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-top: 50px; }
.bonus-item { background: var(--card-bg); padding: 30px; border-radius: 10px; border: 1px solid #222; text-align: center; }
.bonus-item img { width: 120px; margin-bottom: 20px; }
.bonus-item h4 { color: var(--gold); margin-bottom: 10px; }

/* FAQ */
.faq-section { padding: 100px 0; }
.faq-grid { margin-top: 50px; }
details { background: var(--card-bg); padding: 20px; border-radius: 10px; margin-bottom: 15px; cursor: pointer; }
summary { font-weight: bold; color: var(--gold); font-size: 1.1rem; }

/* BUTTONS */
.main-btn { 
    display: inline-block; background: var(--gold); color: #000; padding: 25px 50px; 
    text-decoration: none; font-weight: 800; border-radius: 50px; font-size: 1.2rem;
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3); transition: 0.3s;
}
.main-btn:hover { background: var(--gold-hover); transform: translateY(-5px); }

.julia-tip { 
    margin-top: 40px; padding: 25px; border: 1px solid var(--gold); 
    border-radius: 15px; background: rgba(212, 175, 55, 0.05); text-align: center; 
}

/* OFERTA */
.pricing { padding: 80px 0; text-align: center; }
.offer-card { background: var(--card-bg); border: 2px solid var(--gold); padding: 50px; border-radius: 20px; display: inline-block; }
.price { font-size: 4rem; font-weight: 800; color: var(--gold); }
.old-price { text-decoration: line-through; color: #888; }

footer { padding: 40px 0; text-align: center; border-top: 1px solid #222; font-size: 0.8rem; color: #666; }

/* MOBILE */
@media (max-width: 768px) {
    .grid-2, .faq-grid { grid-template-columns: 1fr; }
    h1 { font-size: 1.8rem; }
    .offer-card { width: 100%; padding: 30px; }
}