.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    font-size: var(--text-base);
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
    justify-content: center;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--text-light);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

.btn-outline {
    background: transparent;
    border: 1px solid currentColor;
    color: inherit;
}

.btn-outline:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
}

.btn-lg {
    padding: 12px 24px;
    font-size: var(--text-lg);
}

.btn-sm {
    padding: 8px 16px;
    font-size: var(--text-sm);
}

/* 特定颜色的按钮变体 */
.btn-success {
    background-color: var(--success);
    color: var(--text-light);
}

.btn-danger {
    background-color: var(--danger);
    color: var(--text-light);
}

.btn-warning {
    background-color: var(--warning);
    color: var(--dark);
}