/* NOIR SOLAR THEME */
:root {
    --bg-color: #F5F1E6;
    /* Sand/Off-white */
    --text-color: #333333;
    /* Urban Gray */
    --accent-color: #FF5722;
    /* Sunset Orange */
    --cta-color: #1B4D3E;
    /* Dark Green - Sophisticated */
    --cta-text: #ffffff;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

/* TYPOGRAPHY */
h1,
h2,
h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: #000;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: #444;
}

/* LAYOUT UTILS */
.container {
    width: 100%;
    max-width: 600px;
    /* Mobile-first optimization */
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 4rem 0;
}

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

.text-left {
    text-align: left;
}

/* HERO SECTION */
.hero {
    padding: 2.5rem 0 2rem;
    text-align: left;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.pre-headline {
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 2px;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 1rem;
    display: block;
}

.subheadline {
    font-size: 1.25rem;
    color: #555;
    margin-bottom: 2rem;
    font-weight: 400;
}

/* PROBLEM SECTION */
.problem-section {
    background-color: #EAE6DA;
    /* Slightly darker sand */
}

/* SOLUTION SECTION */
.solution-section {
    background-color: var(--bg-color);
}

.benefit-list {
    list-style: none;
    margin-bottom: 2rem;
}

.benefit-list li {
    margin-bottom: 1.5rem;
    position: relative;
    padding-left: 1.5rem;
}

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

.benefit-title {
    font-weight: 700;
    color: #000;
    display: block;
    margin-bottom: 0.25rem;
}

/* CTA BUTTON */
.cta-button {
    display: block;
    width: 100%;
    background-color: var(--cta-color);
    color: var(--cta-text);
    padding: 1.2rem 1rem;
    text-align: center;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: 4px;
    transition: transform 0.2s, box-shadow 0.2s;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: none;
    cursor: pointer;
    margin-top: 1rem;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    background-color: #143d30;
}

.guarantee {
    font-size: 0.9rem;
    color: #666;
    margin-top: 1rem;
    text-align: center;
    font-style: italic;
}

/* AUTHORITY/DISCLAIMER */
.authority-section {
    font-size: 0.85rem;
    color: #777;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    padding: 2rem 0;
}

/* FOOTER */
.footer {
    background-color: #111;
    color: #fff;
    padding: 4rem 0;
    text-align: center;
}

.footer h2 {
    color: #fff;
}

.footer p {
    color: #ccc;
}

.footer .cta-button {
    background-color: var(--accent-color);
    /* Orange for final CTA */
    color: #fff;
}

.footer .cta-button:hover {
    background-color: #e64a19;
}

/* RESPONSIVE */
@media (min-width: 768px) {
    .container {
        max-width: 700px;
        /* Optimal reading width */
    }

    h1 {
        font-size: 3.5rem;
    }

    h2 {
        font-size: 2.5rem;
    }

    .hero {
        padding: 5rem 0 4rem;
    }
}

/* BONUS SECTION */
.bonus-section {
    background-color: #EBE7DC;
    /* Different shade of sand */
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.value-stack {
    list-style: none;
    margin: 2rem 0;
    font-size: 1.1rem;
}

.value-stack li {
    margin-bottom: 1rem;
    padding-left: 2rem;
    position: relative;
    border-bottom: 1px dashed rgba(0, 0, 0, 0.1);
    padding-bottom: 0.5rem;
}

.value-stack li::before {
    content: "✓";
    color: var(--cta-color);
    /* Green checkmark */
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
    font-size: 1.2rem;
}

.stack-item-title {
    font-weight: 700;
    color: #000;
}

.stack-item-desc {
    font-size: 0.9rem;
    color: #555;
    display: block;
}

/* PRICE DISPLAY */
.price-container {
    margin: 2rem 0 1rem;
    text-align: center;
}

.price-old {
    text-decoration: line-through;
    color: #777;
    font-size: 1.2rem;
    margin-right: 10px;
}

.price-new {
    color: var(--accent-color);
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
}

.price-label {
    display: block;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    color: #555;
}