:root {
    --primary-red: #cc0000;
    --highlight-yellow: #ffff00;
    --text-black: #111827;
    --text-body: #222222;
    --bg-paper: #ffffff;
    --bg-offwhite: #f3f4f6;
    --font-heading: 'Merriweather', serif;
    --font-body: 'Inter', sans-serif;
    --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    --shadow-strong: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: var(--font-body);
    font-size: 18px;
    /* Larger base font for readability */
    color: var(--text-body);
    background-color: var(--bg-paper);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* --- Layout Containers --- */
.container {
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 1rem;
}

.letter-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem 4rem;
    background: #fff;
}

.letter-body {
    max-width: 680px;
    /* Optimal line length for reading */
    margin: 3rem auto 0;
    font-family: var(--font-heading);
    /* Serif for the letter body feels more authoritative/editorial */
    color: #333;
}

/* --- Top Bar --- */
.top-bar {
    background-color: #000;
    color: #fff;
    text-align: center;
    padding: 0.75rem 0;
    font-size: 0.9rem;
}

/* --- Typography --- */
h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    font-weight: 900;
    line-height: 1.25;
    color: var(--text-black);
}

.eyebrow {
    text-transform: uppercase;
    font-size: 0.85rem;
    font-weight: 700;
    color: #555;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.main-headline {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.sub-headline {
    font-size: 1.3rem;
    font-weight: 400;
    color: #444;
    font-family: var(--font-body);
    /* Sans serif for subhead to contrast */
    margin-bottom: 2rem;
}

.highlight-yellow {
    background-color: var(--highlight-yellow);
    padding: 0 4px;
}

.highlight-red {
    color: var(--primary-red);
}

.narrative-headline {
    font-size: 2rem;
    margin: 2.5rem 0 1rem;
    border-bottom: 2px solid #eee;
    padding-bottom: 0.5rem;
}

/* --- Body Text Formatting (The Letter) --- */
.letter-body p {
    margin-bottom: 1.5rem;
    font-size: 1.15rem;
}

.dropcap {
    float: left;
    font-size: 4rem;
    line-height: 0.8;
    margin-right: 0.1em;
    font-weight: 900;
}

.bullet-list {
    list-style: none;
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--bg-offwhite);
    border-left: 5px solid var(--primary-red);
}

.bullet-list li {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-family: var(--font-body);
    font-weight: 600;
}

/* --- Video --- */
.vsl-section {
    margin: 2rem 0 3rem;
}

.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    /* 16:9 */
    background: #000;
    overflow: hidden;
    border: 5px solid #fff;
    box-shadow: var(--shadow-strong);
}

.video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: #111;
    color: #fff;
}

.play-button {
    width: 80px;
    height: 80px;
    background: var(--primary-red);
    border-radius: 50%;
    position: relative;
    margin-bottom: 1rem;
    box-shadow: 0 0 20px rgba(204, 0, 0, 0.5);
}

.play-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 55%;
    transform: translate(-50%, -50%);
    border-left: 25px solid white;
    border-top: 15px solid transparent;
    border-bottom: 15px solid transparent;
}

.sound-alert {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #666;
}

/* --- CTA Section --- */
.cta-section {
    text-align: center;
    margin: 3rem 0;
    padding: 2rem;
    background: #fff;
    border: 2px dashed #ccc;
}

.hidden {
    display: none;
}

.cta-button {
    display: inline-block;
    background: #00C853;
    color: #fff;
    font-family: var(--font-body);
    font-weight: 800;
    font-size: 1.6rem;
    text-decoration: none;
    padding: 1.5rem 2rem;
    border-radius: 6px;
    border-bottom: 5px solid #00963f;
    width: 100%;
    max-width: 500px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    line-height: 1.2;
}

.cta-button:hover {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

.btn-sub {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0.9;
    margin-top: 5px;
}

.pulse-animation {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 200, 83, 0.7);
    }

    70% {
        box-shadow: 0 0 0 15px rgba(0, 200, 83, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(0, 200, 83, 0);
    }
}

.payment-methods {
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: #555;
}

/* --- Offer Stack --- */
.offer-stack {
    margin: 2rem 0;
}

.stack-item {
    background: #fcfcfc;
    border: 1px solid #eee;
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 6px;
}

.stack-item h4 {
    color: var(--primary-red);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

/* --- Price Box --- */
.cta-box {
    text-align: center;
    margin-top: 3rem;
}

.cta-price {
    font-size: 1.5rem;
    margin-top: 1rem;
    font-family: var(--font-body);
    font-weight: 700;
}

.old-price {
    text-decoration: line-through;
    color: #999;
    font-size: 1.2rem;
}

.new-price {
    color: var(--primary-red);
    font-size: 2rem;
}

/* --- Footer --- */
.simple-footer {
    border-top: 1px solid #eee;
    padding: 3rem 0;
    text-align: center;
    font-size: 0.8rem;
    color: #888;
    background: #fcfcfc;
}

.simple-footer a {
    color: #888;
    text-decoration: none;
}

.simple-footer a:hover {
    text-decoration: underline;
}

.footer-disclaimer {
    margin-top: 1rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* --- Mobile Responsiveness --- */
@media (max-width: 640px) {
    .main-headline {
        font-size: 1.8rem;
    }

    .sub-headline {
        font-size: 1.1rem;
    }

    .letter-body p {
        font-size: 1.05rem;
    }

    .cta-button {
        font-size: 1.2rem;
        padding: 1rem;
    }
}