.button-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

button {
    padding: 12px 16px;
    border-radius: var(--radius);
    border: 3px solid var(--border);
    background: white;
    color: #1a1a2e;
    font-family: var(--font-body, Arial);
    font-weight: 900;
    font-size: 1rem;
    cursor: pointer;
    transition: transform var(--t), box-shadow var(--t), background var(--t);
    box-shadow: var(--shadow-btn);
    letter-spacing: 1px;
    text-transform: uppercase;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    width: 100%;
    text-align: left;
}

button:hover:not(:disabled) {
    transform: translateY(4px);
    box-shadow: 0 1px 0 var(--border);
}

button:active:not(:disabled) {
    transform: translateY(5px);
    box-shadow: none;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

button span.sub {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--green);
    color: var(--green-bg);
    font-size: 0.75rem;
    font-weight: 800;
    padding: 3px 10px;
    border-radius: 50px;
    border: 2px solid var(--green-dark);
    text-transform: none;
    letter-spacing: 0;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: var(--font-body, Arial);
}

.share-box {
    margin: 0;
}

.pseudo-box {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 5px 0;
}

#pseudoInfo {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
}

.pseudo-box input {
    padding: 11px 14px;
    border-radius: var(--radius);
    border: 3px solid var(--border);
    font-size: 1rem;
    font-weight: bold;
    text-align: center;
    outline: none;
    box-shadow: 0 4px 0 var(--border);
    transition: border-color var(--t), box-shadow var(--t);
}

.pseudo-box input:focus {
    border-color: var(--red);
    box-shadow: 0 4px 0 var(--red);
}

@media (max-width: 850px) {
    button {
        font-size: 0.95rem;
        padding: 11px 13px;
    }

    button span.sub {
        font-size: 0.72rem;
        padding: 2px 8px;
    }
}

@media (max-width: 380px) {
    button {
        font-size: 0.88rem;
        padding: 10px 10px;
        gap: 4px;
    }

    button span.sub {
        font-size: 0.68rem;
        padding: 2px 7px;
    }
}