* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #0F172A;
    color: #FFFFFF;
}

.container {
    width: min(1120px, 92%);
    margin: auto;
}

.header {
    padding: 26px 0;
    border-bottom: 1px solid rgba(255,255,255,.08);
}

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

.logo {
    font-size: 1.3rem;
    font-weight: 800;
}

.header-link {
    color: #CBD5E1;
    text-decoration: none;
    font-weight: 600;
}

.hero {
    padding: 80px 0;
    background:
        radial-gradient(circle at top left, rgba(34,197,94,.18), transparent 35%),
        #0F172A;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 50px;
    align-items: center;
}

.badge {
    display: inline-block;
    background: rgba(34,197,94,.15);
    color: #86EFAC;
    padding: 9px 16px;
    border-radius: 999px;
    font-size: .85rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(2.4rem, 5vw, 4.7rem);
    line-height: 1;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.hero p {
    color: #CBD5E1;
    font-size: 1.12rem;
    line-height: 1.7;
    max-width: 620px;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 26px;
}

.btn {
    display: inline-block;
    border: none;
    border-radius: 14px;
    padding: 15px 24px;
    font-size: 1rem;
    font-weight: 800;
    cursor: pointer;
    text-decoration: none;
    transition: .25s;
}

.btn-primary {
    background: #22C55E;
    color: #052E16;
}

.btn-primary:hover {
    background: #16A34A;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: #FFFFFF;
    border: 1px solid #475569;
}

.trust {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    color: #CBD5E1;
    font-size: .92rem;
}

.ebook-card,
.checkout-card {
    background: rgba(30,41,59,.88);
    border: 1px solid #334155;
    border-radius: 30px;
    padding: 28px;
    box-shadow: 0 24px 70px rgba(0,0,0,.35);
}

.ebook-cover {
    min-height: 360px;
    border-radius: 24px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: end;
    background:
        linear-gradient(145deg, rgba(34,197,94,.95), rgba(21,128,61,.95)),
        #22C55E;
}

.ebook-cover span {
    font-size: .9rem;
    color: #DCFCE7;
    margin-bottom: 10px;
}

.ebook-cover h2 {
    font-size: 2.6rem;
    line-height: 1;
}

.ebook-cover p {
    color: #DCFCE7;
    margin-top: 10px;
}

.price-box {
    margin-top: 24px;
}

.price-box small {
    color: #94A3B8;
}

.price-box strong {
    display: block;
    font-size: 2.7rem;
    margin: 8px 0;
}

.price-box span {
    color: #CBD5E1;
}

.section {
    padding: 75px 0;
}

.section h2 {
    text-align: center;
    font-size: 2.3rem;
    margin-bottom: 14px;
}

.section-description {
    text-align: center;
    color: #CBD5E1;
    max-width: 680px;
    margin: 0 auto 38px;
    line-height: 1.6;
}

.modules {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.modules div {
    background: #1E293B;
    border: 1px solid #334155;
    border-radius: 18px;
    padding: 20px;
    color: #E2E8F0;
    font-weight: 700;
}

.checkout-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.checkout-card h2 {
    text-align: left;
    margin-bottom: 14px;
}

.checkout-card p {
    color: #CBD5E1;
    line-height: 1.6;
    margin-bottom: 24px;
}

form {
    display: grid;
    gap: 18px;
}

label {
    font-weight: 700;
    color: #E2E8F0;
}

input {
    display: block;
    width: 100%;
    margin-top: 8px;
    padding: 15px;
    border-radius: 12px;
    border: 1px solid #475569;
    background: #0F172A;
    color: #FFFFFF;
    font-size: 1rem;
}

input::placeholder {
    color: #64748B;
}

.pix-area {
    text-align: center;
}

.qr-placeholder {
    width: 230px;
    height: 230px;
    border-radius: 22px;
    background: #FFFFFF;
    color: #0F172A;
    margin: 20px auto;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
}

.pix-label {
    margin-bottom: 8px !important;
    color: #94A3B8 !important;
}

.pix-code {
    background: #0F172A;
    border: 1px solid #334155;
    border-radius: 14px;
    padding: 14px;
    color: #CBD5E1;
    word-break: break-all;
    font-size: .88rem;
    margin-bottom: 16px;
}

.message {
    margin-top: 18px;
    color: #86EFAC;
    font-weight: 700;
}

.success {
    background: rgba(34,197,94,.12);
    border: 1px solid rgba(34,197,94,.35);
    padding: 14px;
    border-radius: 14px;
}

.footer {
    padding: 34px 0;
    text-align: center;
    color: #94A3B8;
    border-top: 1px solid rgba(255,255,255,.08);
}

.pix-area {
    display: none;
}

@media (max-width: 860px) {
    .hero-grid,
    .checkout-grid {
        grid-template-columns: 1fr;
    }

    .modules {
        grid-template-columns: 1fr;
    }

    .ebook-cover {
        min-height: 280px;
    }
}