* { box-sizing: border-box; }
*::before, *::after { box-sizing: border-box; }
html {
    margin: 0;
    overflow-x: hidden;
    padding: 0;
    width: 100%;
}
body {
    background: var(--background-color);
    color: var(--text-color);
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
    padding: 0;
    width: 100%;
}
.shell {
    align-items: center;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    min-height: 100vh;
    min-width: 0;
    overflow-x: hidden;
    padding: 24px 16px;
    width: 100%;
}
.frame {
    align-items: flex-start;
    border-radius: 28px;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    margin: 0 auto;
    max-width: 426px;
    min-width: 0;
    overflow: visible;
    padding: 18px;
    width: min(100%, 426px);
}
.card {
    background: var(--card-color);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 24px;
    box-sizing: border-box;
    box-shadow: 0 24px 80px rgba(0,0,0,0.42);
    flex: 0 0 auto;
    margin: 0 auto;
    max-width: 390px;
    min-height: 640px;
    min-width: 0;
    overflow: hidden;
    padding: 28px 22px;
    text-align: center;
    width: min(100%, 390px);
}
.limited {
    background: #fff3cd;
    border-radius: 999px;
    color: #765100;
    display: inline-flex;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 18px;
    padding: 7px 12px;
}
.logo {
    border-radius: 50%;
    display: block;
    height: 118px;
    margin: 0 auto 20px;
    object-fit: cover;
    width: 118px;
}
.logo-placeholder {
    align-items: center;
    background: rgba(255,255,255,0.08);
    color: var(--button-color);
    display: flex;
    font-size: 30px;
    font-weight: 900;
    justify-content: center;
}
h1 {
    color: var(--title-color);
    font-size: 32px;
    font-weight: 850;
    line-height: 1.08;
    margin: 0 0 12px;
}
.subtitle {
    color: var(--text-color);
    font-size: 16px;
    line-height: 1.5;
    margin: 0 0 16px;
}
.cta {
    align-items: center;
    background: #25D366;
    border: 0;
    border-radius: 16px;
    color: #fff;
    cursor: pointer;
    display: inline-flex;
    font-size: 16px;
    font-weight: 800;
    gap: 10px;
    justify-content: center;
    margin: 18px 0 10px;
    min-height: 54px;
    padding: 14px 18px;
    transition: transform 0.25s ease-in-out, box-shadow 0.25s ease-in-out, background 0.25s ease-in-out;
    width: 100%;
    animation: ctaPulse 1.8s ease-in-out infinite;
}

.cta::before {
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M17.472 14.382c-.297-.149-1.758-.867-2.03-.967-.273-.099-.471-.148-.67.15-.197.297-.767.966-.94 1.164-.173.199-.347.223-.644.075-.297-.15-1.255-.463-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.298-.347.446-.52.149-.174.198-.298.298-.497.099-.198.05-.371-.025-.52-.075-.149-.669-1.612-.916-2.207-.242-.579-.487-.5-.669-.51-.173-.008-.371-.01-.57-.01-.198 0-.52.074-.792.372-.272.297-1.04 1.016-1.04 2.479 0 1.462 1.065 2.875 1.213 3.074.149.198 2.096 3.2 5.077 4.487.709.306 1.262.489 1.694.625.712.227 1.36.195 1.871.118.571-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413-.074-.124-.272-.198-.57-.347m-5.421 7.403h-.004a9.87 9.87 0 01-5.031-1.378l-.361-.214-3.741.982.998-3.648-.235-.374a9.86 9.86 0 01-1.51-5.26c.001-5.45 4.436-9.884 9.888-9.884 2.64 0 5.122 1.03 6.988 2.898a9.825 9.825 0 012.893 6.994c-.003 5.45-4.437 9.884-9.885 9.884m8.413-18.297A11.815 11.815 0 0012.05 0C5.495 0 .16 5.335.157 11.892c0 2.096.547 4.142 1.588 5.945L.057 24l6.305-1.654a11.882 11.882 0 005.683 1.448h.005c6.554 0 11.89-5.335 11.893-11.893a11.821 11.821 0 00-3.48-8.413z'/%3E%3C/svg%3E") no-repeat center;
    background-size: contain;
    content: '';
    display: inline-block;
    flex-shrink: 0;
    height: 20px;
    width: 20px;
}

.cta:hover {
    animation: none;
    background: #20BA5A;
    transform: scale(1.03);
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.5);
}

.cta:active {
    animation: none;
    transform: scale(0.98);
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.3);
    transition-duration: 0.1s;
}

.cta.is-loading { opacity: .82; }
.secondary {
    background: var(--secondary-button-color);
    border: 1px solid var(--secondary-button-border-color);
    border-radius: 16px;
    color: var(--secondary-button-text-color);
    cursor: pointer;
    font-size: 16px;
    font-weight: 800;
    margin: 0 0 16px;
    min-height: 54px;
    padding: 14px 18px;
    max-width: 100%;
    width: 100%;
}
.help {
    color: var(--text-color);
    font-size: 14px;
    line-height: 1.5;
    margin: 0 0 12px;
}
.qr-link {
    color: var(--link-color);
    display: inline-block;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 12px;
}
.qr-box {
    align-items: center;
    background: #fff;
    border-radius: 18px;
    box-sizing: border-box;
    display: inline-flex;
    justify-content: center;
    margin: 16px auto 20px;
    max-width: 100%;
    padding: 24px;
    width: fit-content;
}
.qr-box svg { display: block; height: 280px; margin: 0 auto; width: 280px; }
.copy-feedback { color: var(--link-color); font-size: 13px; font-weight: 700; margin: -8px 0 12px; }
.trust {
    color: var(--text-color);
    font-size: 14px;
    margin: 0;
}
footer {
    color: var(--text-color);
    font-size: 12px;
    margin-top: 18px;
    opacity: .72;
}
@keyframes ctaPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
    }
    50% {
        transform: scale(1.04);
        box-shadow: 0 8px 36px rgba(37, 211, 102, 0.55);
    }
}

@media (prefers-reduced-motion: reduce) {
    .cta { animation: none; }
}

@media (max-width: 480px) {
    .shell { padding-left: 12px; padding-right: 12px; }
    .frame { padding-left: 12px; padding-right: 12px; width: 100%; }
    .card { border-radius: 24px; max-width: 100%; padding: 24px 18px; width: 100%; }
    .logo { height: 104px; width: 104px; }
    .cta, .secondary { max-width: 100%; width: 100%; }
    .qr-box { padding: 18px; }
    .qr-box svg {
        height: min(260px, calc(100vw - 96px));
        width: min(260px, calc(100vw - 96px));
    }
}