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

:root {
    --bg:             #0A0A0A;
    --surface:        #141414;
    --surface-2:      #1C1C1C;
    --text:           #F0EBE1;
    --text-muted:     #7A7A7A;
    --accent:         #F4C842;
    --border:         rgba(255, 255, 255, 0.07);
    --border-hover:   rgba(255, 255, 255, 0.18);
    --border-gold:    rgba(244, 200, 66, 0.35);
    --radius:         18px;

    --btc:       #F7931A;
    --lightning: #792DE4;
    --eth:       #627EEA;
    --sol:       #9945FF;
}

html {
    color-scheme: dark;
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    font-size: 18px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

main {
    max-width: 780px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Hero ── */

.hero {
    text-align: center;
    padding: 88px 0 72px;
}

.badge {
    display: inline-block;
    background: var(--accent);
    color: #000;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    padding: 6px 18px;
    border-radius: 100px;
    margin-bottom: 32px;
}

h1 {
    font-size: clamp(56px, 14vw, 108px);
    font-weight: 900;
    line-height: 0.93;
    letter-spacing: -0.03em;
    margin-bottom: 28px;
    color: var(--text);
}

.tagline {
    font-size: 20px;
    color: var(--text-muted);
    font-style: italic;
}

/* ── Intro ── */

.intro {
    padding: 48px 0;
    border-top: 1px solid var(--border-gold);
    border-bottom: 1px solid var(--border-gold);
    margin-bottom: 80px;
}

.intro p {
    font-size: 20px;
    margin-bottom: 16px;
    color: var(--text);
}

.intro p:last-child {
    margin-bottom: 0;
}

/* ── Payments ── */

.payments {
    margin-bottom: 88px;
}

.payments h2 {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 28px;
}

.payment-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: border-color 0.2s ease, transform 0.2s ease;
    will-change: transform;
}

@media (hover: hover) {
    .card:hover {
        border-color: var(--border-hover);
        transform: translateY(-2px);
    }
}

.card-logo {
    font-size: 20px;
    font-weight: 900;
    letter-spacing: -0.02em;
}

.btc       { color: var(--btc); }
.lightning { color: var(--lightning); }
.eth       { color: var(--eth); }
.sol       { color: var(--sol); }

.card-network {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-top: -4px;
}

.qr-wrap {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 14px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.qr-wrap img {
    width: 100%;
    max-width: 190px;
    height: auto;
    display: block;
    image-rendering: crisp-edges;
    image-rendering: -webkit-optimize-contrast;
}

.address {
    display: block;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 10.5px;
    background: var(--surface-2);
    padding: 10px 12px;
    border-radius: 8px;
    word-break: break-all;
    color: var(--text-muted);
    line-height: 1.65;
    user-select: all;
    cursor: text;
    border: 1px solid var(--border);
}

.card-stat {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.03em;
}

.card-note {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

.share-row {
    margin-top: 28px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.share-label {
    font-size: 14px;
    color: var(--text-muted);
}

.tweet-btn {
    display: inline-block;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    padding: 10px 20px;
    border-radius: 100px;
    transition: border-color 0.2s ease;
}

@media (hover: hover) {
    .tweet-btn:hover {
        border-color: var(--border-hover);
    }
}

/* ── FAQ ── */

.faq {
    margin-bottom: 88px;
}

.faq h2 {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 28px;
}

.faq-item {
    padding: 22px 0;
    border-bottom: 1px solid var(--border);
}

.faq-item:first-child {
    border-top: 1px solid var(--border);
}

.faq-item h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

.faq-item p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.7;
}

/* ── Disclaimer ── */

.disclaimer {
    background: var(--surface);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius);
    padding: 36px 40px;
    margin-bottom: 64px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.disclaimer::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(244,200,66,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.disclaimer p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: 14px;
    position: relative;
}

.disclaimer p:last-child {
    margin-bottom: 0;
}

.will-this-work {
    font-size: 22px !important;
    font-weight: 800 !important;
    color: var(--text) !important;
    letter-spacing: -0.02em;
}

/* ── Footer ── */

footer {
    text-align: center;
    padding: 28px 0 52px;
    border-top: 1px solid var(--border);
}

footer p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ── Responsive ── */

@media (max-width: 640px) {
    .payment-grid {
        grid-template-columns: 1fr;
    }

    .qr-wrap img {
        max-width: 220px;
    }

    .disclaimer {
        padding: 28px 24px;
    }
}

@media (max-width: 420px) {
    h1 {
        font-size: 52px;
    }

    .hero {
        padding: 60px 0 52px;
    }

    .intro p {
        font-size: 18px;
    }
}