.btn {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    border: 1px solid transparent;
    border-radius: var(--glass-radius-pill);
    cursor: pointer;
    padding: 0.85rem 1.35rem;
    font-size: 0.98rem;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    text-decoration: none;
    transition:
        background-color var(--motion-fast) ease,
        border-color var(--motion-fast) ease,
        color var(--motion-fast) ease,
        transform var(--motion-fast) ease,
        box-shadow var(--motion-fast) ease;
}

.btn i {
    flex: 0 0 auto;
    font-size: 0.95em;
    line-height: 1;
}

.btn .fa-brands {
    font-size: 1.18em;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn--primary {
    background: var(--primary);
    color: var(--color-ink);
    border-color: rgba(255, 255, 255, 0.8);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.9),
        0 6px 16px rgba(0, 0, 0, 0.13);
}

.btn--section-primary {
    background: var(--color-night);
    color: var(--primary);
    border-color: rgba(8, 13, 18, 0.18);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.12),
        0 6px 16px rgba(8, 13, 18, 0.14);
}

.btn--section-primary:hover {
    background: #10181d;
    border-color: rgba(8, 13, 18, 0.28);
}

.btn--secondary {
    background: var(--btn-secondary-background, rgba(8, 13, 18, 0.18));
    color: var(--btn-secondary-color, var(--primary));
    border-color: var(--btn-secondary-border, rgba(255, 255, 255, 0.56));
    box-shadow:
        inset 0 1px 0 var(--btn-secondary-highlight, rgba(255, 255, 255, 0.2)),
        0 6px 16px rgba(0, 0, 0, 0.13);
}

.btn--secondary:hover {
    background: var(--btn-secondary-background-hover, rgba(8, 13, 18, 0.34));
    border-color: var(--btn-secondary-border-hover, rgba(255, 255, 255, 0.84));
}

.supporting-link {
    display: inline-flex;
    min-height: 34px;
    align-items: center;
    gap: 0.45rem;
    color: var(--color-ink-muted);
    font-size: 0.86rem;
    font-weight: 750;
    text-decoration-color: rgba(16, 21, 23, 0.28);
    text-underline-offset: 0.25em;
}

.supporting-link:hover {
    color: var(--color-ink);
    text-decoration-color: currentColor;
}

.supporting-link i {
    font-size: 0.72em;
}

@media (prefers-reduced-motion: reduce) {
    .btn {
        transition: none;
    }

    .btn:hover,
    .btn:active {
        transform: none;
    }
}

@media (max-width: 520px) {
    .btn--section-primary {
        width: 100%;
        padding-right: 1rem;
        padding-left: 1rem;
    }
}